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ffmpeg / ffplay.c @ 043d2ff2

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1 01310af2 Fabrice Bellard
/*
2 f05ef45c Stefano Sabatini
 * FFplay : Simple Media Player based on the FFmpeg libraries
3 01310af2 Fabrice Bellard
 * Copyright (c) 2003 Fabrice Bellard
4
 *
5 b78e7197 Diego Biurrun
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8 01310af2 Fabrice Bellard
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10 b78e7197 Diego Biurrun
 * version 2.1 of the License, or (at your option) any later version.
11 01310af2 Fabrice Bellard
 *
12 b78e7197 Diego Biurrun
 * FFmpeg is distributed in the hope that it will be useful,
13 01310af2 Fabrice Bellard
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * You should have received a copy of the GNU Lesser General Public
18 b78e7197 Diego Biurrun
 * License along with FFmpeg; if not, write to the Free Software
19 5509bffa Diego Biurrun
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 01310af2 Fabrice Bellard
 */
21 364a9607 Diego Biurrun
22 91880e46 Dave Yeo
#define _XOPEN_SOURCE 600
23
24 ba11257e Diego Biurrun
#include "config.h"
25 8a3ceaf4 Måns Rullgård
#include <inttypes.h>
26 0f4e8165 Ronald S. Bultje
#include <math.h>
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#include <limits.h>
28 245976da Diego Biurrun
#include "libavutil/avstring.h"
29 2b4abbd6 Stefano Sabatini
#include "libavutil/colorspace.h"
30 718c7b18 Stefano Sabatini
#include "libavutil/pixdesc.h"
31 34017fd9 Stefano Sabatini
#include "libavcore/imgutils.h"
32 126b638e Stefano Sabatini
#include "libavcore/parseutils.h"
33 ba7d6e79 Stefano Sabatini
#include "libavcore/samplefmt.h"
34 245976da Diego Biurrun
#include "libavformat/avformat.h"
35
#include "libavdevice/avdevice.h"
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#include "libswscale/swscale.h"
37 5a4476e2 Peter Ross
#include "libavcodec/audioconvert.h"
38 e43d7a18 Michael Niedermayer
#include "libavcodec/opt.h"
39 166621ab Måns Rullgård
#include "libavcodec/avfft.h"
40 01310af2 Fabrice Bellard
41 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
42
# include "libavfilter/avfilter.h"
43
# include "libavfilter/avfiltergraph.h"
44
#endif
45
46 01310af2 Fabrice Bellard
#include "cmdutils.h"
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48
#include <SDL.h>
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#include <SDL_thread.h>
50
51 2f30a81d Diego Biurrun
#ifdef __MINGW32__
52 31319a8c Fabrice Bellard
#undef main /* We don't want SDL to override our main() */
53
#endif
54
55 d38c9e7a Michael Niedermayer
#include <unistd.h>
56
#include <assert.h>
57
58 64555bd9 Michael Niedermayer
const char program_name[] = "FFplay";
59 ea9c581f Stefano Sabatini
const int program_birth_year = 2003;
60 4cfac5bc Stefano Sabatini
61 97b925ea Stefano Sabatini
//#define DEBUG
62 638c9d91 Fabrice Bellard
//#define DEBUG_SYNC
63
64 79ee4683 Michael Niedermayer
#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
65
#define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
66
#define MIN_FRAMES 5
67 01310af2 Fabrice Bellard
68 638c9d91 Fabrice Bellard
/* SDL audio buffer size, in samples. Should be small to have precise
69
   A/V sync as SDL does not have hardware buffer fullness info. */
70
#define SDL_AUDIO_BUFFER_SIZE 1024
71
72
/* no AV sync correction is done if below the AV sync threshold */
73 7e0140cb Michael Niedermayer
#define AV_SYNC_THRESHOLD 0.01
74 638c9d91 Fabrice Bellard
/* no AV correction is done if too big error */
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#define AV_NOSYNC_THRESHOLD 10.0
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77 d38c9e7a Michael Niedermayer
#define FRAME_SKIP_FACTOR 0.05
78
79 638c9d91 Fabrice Bellard
/* maximum audio speed change to get correct sync */
80
#define SAMPLE_CORRECTION_PERCENT_MAX 10
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82
/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
83
#define AUDIO_DIFF_AVG_NB   20
84
85 01310af2 Fabrice Bellard
/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
86
#define SAMPLE_ARRAY_SIZE (2*65536)
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88 03ae87a3 Luca Abeni
static int sws_flags = SWS_BICUBIC;
89
90 01310af2 Fabrice Bellard
typedef struct PacketQueue {
91
    AVPacketList *first_pkt, *last_pkt;
92
    int nb_packets;
93
    int size;
94
    int abort_request;
95
    SDL_mutex *mutex;
96
    SDL_cond *cond;
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} PacketQueue;
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99 562f382c Michael Niedermayer
#define VIDEO_PICTURE_QUEUE_SIZE 2
100 72ce053b Ian Caulfield
#define SUBPICTURE_QUEUE_SIZE 4
101 01310af2 Fabrice Bellard
102
typedef struct VideoPicture {
103 267e9dfa Michael Niedermayer
    double pts;                                  ///<presentation time stamp for this picture
104 d38c9e7a Michael Niedermayer
    double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
105 1a620dd7 Michael Niedermayer
    int64_t pos;                                 ///<byte position in file
106 01310af2 Fabrice Bellard
    SDL_Overlay *bmp;
107
    int width, height; /* source height & width */
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    int allocated;
109 917d2bb3 Michael Niedermayer
    enum PixelFormat pix_fmt;
110
111
#if CONFIG_AVFILTER
112 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef *picref;
113 917d2bb3 Michael Niedermayer
#endif
114 01310af2 Fabrice Bellard
} VideoPicture;
115
116 72ce053b Ian Caulfield
typedef struct SubPicture {
117
    double pts; /* presentation time stamp for this picture */
118
    AVSubtitle sub;
119
} SubPicture;
120
121 01310af2 Fabrice Bellard
enum {
122
    AV_SYNC_AUDIO_MASTER, /* default choice */
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    AV_SYNC_VIDEO_MASTER,
124 638c9d91 Fabrice Bellard
    AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
125 01310af2 Fabrice Bellard
};
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127
typedef struct VideoState {
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    SDL_Thread *parse_tid;
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    SDL_Thread *video_tid;
130 d38c9e7a Michael Niedermayer
    SDL_Thread *refresh_tid;
131 638c9d91 Fabrice Bellard
    AVInputFormat *iformat;
132 01310af2 Fabrice Bellard
    int no_background;
133
    int abort_request;
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    int paused;
135 416e3508 Fabrice Bellard
    int last_paused;
136 72ea344b Fabrice Bellard
    int seek_req;
137 3ba1438d Michael Niedermayer
    int seek_flags;
138 72ea344b Fabrice Bellard
    int64_t seek_pos;
139 4ed29207 Michael Niedermayer
    int64_t seek_rel;
140 f5668147 Michael Niedermayer
    int read_pause_return;
141 01310af2 Fabrice Bellard
    AVFormatContext *ic;
142
    int dtg_active_format;
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144
    int audio_stream;
145 115329f1 Diego Biurrun
146 01310af2 Fabrice Bellard
    int av_sync_type;
147 638c9d91 Fabrice Bellard
    double external_clock; /* external clock base */
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    int64_t external_clock_time;
149 115329f1 Diego Biurrun
150 638c9d91 Fabrice Bellard
    double audio_clock;
151
    double audio_diff_cum; /* used for AV difference average computation */
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    double audio_diff_avg_coef;
153
    double audio_diff_threshold;
154
    int audio_diff_avg_count;
155 01310af2 Fabrice Bellard
    AVStream *audio_st;
156
    PacketQueue audioq;
157
    int audio_hw_buf_size;
158
    /* samples output by the codec. we reserve more space for avsync
159
       compensation */
160 c6727809 Måns Rullgård
    DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
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    DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
162 5a4476e2 Peter Ross
    uint8_t *audio_buf;
163 7fea94ce Zdenek Kabelac
    unsigned int audio_buf_size; /* in bytes */
164 01310af2 Fabrice Bellard
    int audio_buf_index; /* in bytes */
165 bea18375 Thilo Borgmann
    AVPacket audio_pkt_temp;
166 01310af2 Fabrice Bellard
    AVPacket audio_pkt;
167 5d6e4c16 Stefano Sabatini
    enum AVSampleFormat audio_src_fmt;
168 5a4476e2 Peter Ross
    AVAudioConvert *reformat_ctx;
169 115329f1 Diego Biurrun
170 01310af2 Fabrice Bellard
    int show_audio; /* if true, display audio samples */
171
    int16_t sample_array[SAMPLE_ARRAY_SIZE];
172
    int sample_array_index;
173 5e0257e3 Fabrice Bellard
    int last_i_start;
174 166621ab Måns Rullgård
    RDFTContext *rdft;
175 12eeda34 Michael Niedermayer
    int rdft_bits;
176 7dbbf6a1 Måns Rullgård
    FFTSample *rdft_data;
177 12eeda34 Michael Niedermayer
    int xpos;
178 115329f1 Diego Biurrun
179 72ce053b Ian Caulfield
    SDL_Thread *subtitle_tid;
180
    int subtitle_stream;
181
    int subtitle_stream_changed;
182
    AVStream *subtitle_st;
183
    PacketQueue subtitleq;
184
    SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
185
    int subpq_size, subpq_rindex, subpq_windex;
186
    SDL_mutex *subpq_mutex;
187
    SDL_cond *subpq_cond;
188 115329f1 Diego Biurrun
189 638c9d91 Fabrice Bellard
    double frame_timer;
190
    double frame_last_pts;
191
    double frame_last_delay;
192 115329f1 Diego Biurrun
    double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
193 01310af2 Fabrice Bellard
    int video_stream;
194
    AVStream *video_st;
195
    PacketQueue videoq;
196 267e9dfa Michael Niedermayer
    double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
197 68aefbe8 Michael Niedermayer
    double video_current_pts_drift;              ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
198 1a620dd7 Michael Niedermayer
    int64_t video_current_pos;                   ///<current displayed file pos
199 01310af2 Fabrice Bellard
    VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
200
    int pictq_size, pictq_rindex, pictq_windex;
201
    SDL_mutex *pictq_mutex;
202
    SDL_cond *pictq_cond;
203 917d2bb3 Michael Niedermayer
#if !CONFIG_AVFILTER
204 3ac56e28 Martin Storsjö
    struct SwsContext *img_convert_ctx;
205 917d2bb3 Michael Niedermayer
#endif
206 115329f1 Diego Biurrun
207 01310af2 Fabrice Bellard
    //    QETimer *video_timer;
208
    char filename[1024];
209
    int width, height, xleft, ytop;
210 41db429d Michael Niedermayer
211 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
212
    AVFilterContext *out_video_filter;          ///<the last filter in the video chain
213
#endif
214 d38c9e7a Michael Niedermayer
215
    float skip_frames;
216
    float skip_frames_index;
217
    int refresh;
218 01310af2 Fabrice Bellard
} VideoState;
219
220 358061f6 Diego Pettenò
static void show_help(void);
221 638c9d91 Fabrice Bellard
static int audio_write_get_buf_size(VideoState *is);
222 01310af2 Fabrice Bellard
223
/* options specified by the user */
224
static AVInputFormat *file_iformat;
225
static const char *input_filename;
226 076db5ed Robert Krüger
static const char *window_title;
227 01310af2 Fabrice Bellard
static int fs_screen_width;
228
static int fs_screen_height;
229 fccb19e3 Michael Niedermayer
static int screen_width = 0;
230
static int screen_height = 0;
231 e4b89522 Limin Wang
static int frame_width = 0;
232
static int frame_height = 0;
233
static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
234 01310af2 Fabrice Bellard
static int audio_disable;
235
static int video_disable;
236 72415b2a Stefano Sabatini
static int wanted_stream[AVMEDIA_TYPE_NB]={
237
    [AVMEDIA_TYPE_AUDIO]=-1,
238
    [AVMEDIA_TYPE_VIDEO]=-1,
239
    [AVMEDIA_TYPE_SUBTITLE]=-1,
240 5b369983 Michael Niedermayer
};
241 70a4764d Michael Niedermayer
static int seek_by_bytes=-1;
242 01310af2 Fabrice Bellard
static int display_disable;
243 1e1a0b18 Baptiste Coudurier
static int show_status = 1;
244 638c9d91 Fabrice Bellard
static int av_sync_type = AV_SYNC_AUDIO_MASTER;
245 72ea344b Fabrice Bellard
static int64_t start_time = AV_NOPTS_VALUE;
246 d834d63b Robert Krüger
static int64_t duration = AV_NOPTS_VALUE;
247 e26a8335 Wolfgang Hesseler
static int debug = 0;
248 0c9bbaec Wolfgang Hesseler
static int debug_mv = 0;
249 bba04f1e Wolfgang Hesseler
static int step = 0;
250 c62c07d3 Michael Niedermayer
static int thread_count = 1;
251 6387c3e6 Michael Niedermayer
static int workaround_bugs = 1;
252 6fc5b059 Michael Niedermayer
static int fast = 0;
253 30bc6613 Michael Niedermayer
static int genpts = 0;
254 178fcca8 Michael Niedermayer
static int lowres = 0;
255
static int idct = FF_IDCT_AUTO;
256 8c3eba7c Michael Niedermayer
static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
257
static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
258
static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
259 047599a4 Michael Niedermayer
static int error_recognition = FF_ER_CAREFUL;
260 1b51e051 Michael Niedermayer
static int error_concealment = 3;
261 41db429d Michael Niedermayer
static int decoder_reorder_pts= -1;
262 2d1653b0 Michael Niedermayer
static int autoexit;
263 066ce8c9 Alexei Svitkine
static int exit_on_keydown;
264
static int exit_on_mousedown;
265 1922c0a7 Robert Krüger
static int loop=1;
266 d38c9e7a Michael Niedermayer
static int framedrop=1;
267 2b3da32f Michael Niedermayer
268
static int rdftspeed=20;
269 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
270
static char *vfilters = NULL;
271
#endif
272 01310af2 Fabrice Bellard
273
/* current context */
274
static int is_full_screen;
275
static VideoState *cur_stream;
276 5e0257e3 Fabrice Bellard
static int64_t audio_callback_time;
277 01310af2 Fabrice Bellard
278 2c676c33 Diego Pettenò
static AVPacket flush_pkt;
279 39c6a118 Michael Niedermayer
280 01310af2 Fabrice Bellard
#define FF_ALLOC_EVENT   (SDL_USEREVENT)
281
#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
282 638c9d91 Fabrice Bellard
#define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
283 01310af2 Fabrice Bellard
284 2c676c33 Diego Pettenò
static SDL_Surface *screen;
285 01310af2 Fabrice Bellard
286 515bd00e Michael Niedermayer
static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
287
288 01310af2 Fabrice Bellard
/* packet queue handling */
289
static void packet_queue_init(PacketQueue *q)
290
{
291
    memset(q, 0, sizeof(PacketQueue));
292
    q->mutex = SDL_CreateMutex();
293
    q->cond = SDL_CreateCond();
294 515bd00e Michael Niedermayer
    packet_queue_put(q, &flush_pkt);
295 01310af2 Fabrice Bellard
}
296
297 72ea344b Fabrice Bellard
static void packet_queue_flush(PacketQueue *q)
298 01310af2 Fabrice Bellard
{
299
    AVPacketList *pkt, *pkt1;
300
301 687fae2b Ivan Wong
    SDL_LockMutex(q->mutex);
302 01310af2 Fabrice Bellard
    for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
303
        pkt1 = pkt->next;
304
        av_free_packet(&pkt->pkt);
305 da6c4573 Michael Niedermayer
        av_freep(&pkt);
306 01310af2 Fabrice Bellard
    }
307 72ea344b Fabrice Bellard
    q->last_pkt = NULL;
308
    q->first_pkt = NULL;
309
    q->nb_packets = 0;
310
    q->size = 0;
311 687fae2b Ivan Wong
    SDL_UnlockMutex(q->mutex);
312 72ea344b Fabrice Bellard
}
313
314
static void packet_queue_end(PacketQueue *q)
315
{
316
    packet_queue_flush(q);
317 01310af2 Fabrice Bellard
    SDL_DestroyMutex(q->mutex);
318
    SDL_DestroyCond(q->cond);
319
}
320
321
static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
322
{
323
    AVPacketList *pkt1;
324
325 72ea344b Fabrice Bellard
    /* duplicate the packet */
326 39c6a118 Michael Niedermayer
    if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
327 72ea344b Fabrice Bellard
        return -1;
328 115329f1 Diego Biurrun
329 01310af2 Fabrice Bellard
    pkt1 = av_malloc(sizeof(AVPacketList));
330
    if (!pkt1)
331
        return -1;
332
    pkt1->pkt = *pkt;
333
    pkt1->next = NULL;
334
335 72ea344b Fabrice Bellard
336 01310af2 Fabrice Bellard
    SDL_LockMutex(q->mutex);
337
338
    if (!q->last_pkt)
339
340
        q->first_pkt = pkt1;
341
    else
342
        q->last_pkt->next = pkt1;
343
    q->last_pkt = pkt1;
344
    q->nb_packets++;
345 7b776589 Aurelien Jacobs
    q->size += pkt1->pkt.size + sizeof(*pkt1);
346 01310af2 Fabrice Bellard
    /* XXX: should duplicate packet data in DV case */
347
    SDL_CondSignal(q->cond);
348
349
    SDL_UnlockMutex(q->mutex);
350
    return 0;
351
}
352
353
static void packet_queue_abort(PacketQueue *q)
354
{
355
    SDL_LockMutex(q->mutex);
356
357
    q->abort_request = 1;
358 115329f1 Diego Biurrun
359 01310af2 Fabrice Bellard
    SDL_CondSignal(q->cond);
360
361
    SDL_UnlockMutex(q->mutex);
362
}
363
364
/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
365
static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
366
{
367
    AVPacketList *pkt1;
368
    int ret;
369
370
    SDL_LockMutex(q->mutex);
371
372
    for(;;) {
373
        if (q->abort_request) {
374
            ret = -1;
375
            break;
376
        }
377 115329f1 Diego Biurrun
378 01310af2 Fabrice Bellard
        pkt1 = q->first_pkt;
379
        if (pkt1) {
380
            q->first_pkt = pkt1->next;
381
            if (!q->first_pkt)
382
                q->last_pkt = NULL;
383
            q->nb_packets--;
384 7b776589 Aurelien Jacobs
            q->size -= pkt1->pkt.size + sizeof(*pkt1);
385 01310af2 Fabrice Bellard
            *pkt = pkt1->pkt;
386
            av_free(pkt1);
387
            ret = 1;
388
            break;
389
        } else if (!block) {
390
            ret = 0;
391
            break;
392
        } else {
393
            SDL_CondWait(q->cond, q->mutex);
394
        }
395
    }
396
    SDL_UnlockMutex(q->mutex);
397
    return ret;
398
}
399
400 115329f1 Diego Biurrun
static inline void fill_rectangle(SDL_Surface *screen,
401 01310af2 Fabrice Bellard
                                  int x, int y, int w, int h, int color)
402
{
403
    SDL_Rect rect;
404
    rect.x = x;
405
    rect.y = y;
406
    rect.w = w;
407
    rect.h = h;
408
    SDL_FillRect(screen, &rect, color);
409
}
410
411
#if 0
412
/* draw only the border of a rectangle */
413
void fill_border(VideoState *s, int x, int y, int w, int h, int color)
414
{
415
    int w1, w2, h1, h2;
416

417
    /* fill the background */
418
    w1 = x;
419
    if (w1 < 0)
420
        w1 = 0;
421
    w2 = s->width - (x + w);
422
    if (w2 < 0)
423
        w2 = 0;
424
    h1 = y;
425
    if (h1 < 0)
426
        h1 = 0;
427
    h2 = s->height - (y + h);
428
    if (h2 < 0)
429
        h2 = 0;
430 115329f1 Diego Biurrun
    fill_rectangle(screen,
431
                   s->xleft, s->ytop,
432
                   w1, s->height,
433 01310af2 Fabrice Bellard
                   color);
434 115329f1 Diego Biurrun
    fill_rectangle(screen,
435
                   s->xleft + s->width - w2, s->ytop,
436
                   w2, s->height,
437 01310af2 Fabrice Bellard
                   color);
438 115329f1 Diego Biurrun
    fill_rectangle(screen,
439
                   s->xleft + w1, s->ytop,
440
                   s->width - w1 - w2, h1,
441 01310af2 Fabrice Bellard
                   color);
442 115329f1 Diego Biurrun
    fill_rectangle(screen,
443 01310af2 Fabrice Bellard
                   s->xleft + w1, s->ytop + s->height - h2,
444
                   s->width - w1 - w2, h2,
445
                   color);
446
}
447
#endif
448
449 72ce053b Ian Caulfield
#define ALPHA_BLEND(a, oldp, newp, s)\
450
((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
451
452
#define RGBA_IN(r, g, b, a, s)\
453
{\
454
    unsigned int v = ((const uint32_t *)(s))[0];\
455
    a = (v >> 24) & 0xff;\
456
    r = (v >> 16) & 0xff;\
457
    g = (v >> 8) & 0xff;\
458
    b = v & 0xff;\
459
}
460
461
#define YUVA_IN(y, u, v, a, s, pal)\
462
{\
463 57cf99f2 Reimar Döffinger
    unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
464 72ce053b Ian Caulfield
    a = (val >> 24) & 0xff;\
465
    y = (val >> 16) & 0xff;\
466
    u = (val >> 8) & 0xff;\
467
    v = val & 0xff;\
468
}
469
470
#define YUVA_OUT(d, y, u, v, a)\
471
{\
472
    ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
473
}
474
475
476
#define BPP 1
477
478 0a8cd696 Reimar Döffinger
static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
479 72ce053b Ian Caulfield
{
480
    int wrap, wrap3, width2, skip2;
481
    int y, u, v, a, u1, v1, a1, w, h;
482
    uint8_t *lum, *cb, *cr;
483
    const uint8_t *p;
484
    const uint32_t *pal;
485 9cb5a11e Reimar Döffinger
    int dstx, dsty, dstw, dsth;
486
487 7cf9c6ae Michael Niedermayer
    dstw = av_clip(rect->w, 0, imgw);
488
    dsth = av_clip(rect->h, 0, imgh);
489
    dstx = av_clip(rect->x, 0, imgw - dstw);
490
    dsty = av_clip(rect->y, 0, imgh - dsth);
491 9cb5a11e Reimar Döffinger
    lum = dst->data[0] + dsty * dst->linesize[0];
492
    cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
493
    cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
494
495 f54b31b9 Björn Axelsson
    width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
496 9cb5a11e Reimar Döffinger
    skip2 = dstx >> 1;
497 72ce053b Ian Caulfield
    wrap = dst->linesize[0];
498 25b4c651 Michael Niedermayer
    wrap3 = rect->pict.linesize[0];
499
    p = rect->pict.data[0];
500
    pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
501 115329f1 Diego Biurrun
502 9cb5a11e Reimar Döffinger
    if (dsty & 1) {
503
        lum += dstx;
504 72ce053b Ian Caulfield
        cb += skip2;
505
        cr += skip2;
506 115329f1 Diego Biurrun
507 9cb5a11e Reimar Döffinger
        if (dstx & 1) {
508 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
509
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
510
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
511
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
512
            cb++;
513
            cr++;
514
            lum++;
515
            p += BPP;
516
        }
517 9cb5a11e Reimar Döffinger
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
518 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
519
            u1 = u;
520
            v1 = v;
521
            a1 = a;
522
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
523
524
            YUVA_IN(y, u, v, a, p + BPP, pal);
525
            u1 += u;
526
            v1 += v;
527
            a1 += a;
528
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
529
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
530
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
531
            cb++;
532
            cr++;
533
            p += 2 * BPP;
534
            lum += 2;
535
        }
536
        if (w) {
537
            YUVA_IN(y, u, v, a, p, pal);
538
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
539
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
540
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
541 676ef505 Björn Axelsson
            p++;
542
            lum++;
543 72ce053b Ian Caulfield
        }
544 4606a059 Björn Axelsson
        p += wrap3 - dstw * BPP;
545
        lum += wrap - dstw - dstx;
546 72ce053b Ian Caulfield
        cb += dst->linesize[1] - width2 - skip2;
547
        cr += dst->linesize[2] - width2 - skip2;
548
    }
549 9cb5a11e Reimar Döffinger
    for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
550
        lum += dstx;
551 72ce053b Ian Caulfield
        cb += skip2;
552
        cr += skip2;
553 115329f1 Diego Biurrun
554 9cb5a11e Reimar Döffinger
        if (dstx & 1) {
555 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
556
            u1 = u;
557
            v1 = v;
558
            a1 = a;
559
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
560
            p += wrap3;
561
            lum += wrap;
562
            YUVA_IN(y, u, v, a, p, pal);
563
            u1 += u;
564
            v1 += v;
565
            a1 += a;
566
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
567
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
568
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
569
            cb++;
570
            cr++;
571
            p += -wrap3 + BPP;
572
            lum += -wrap + 1;
573
        }
574 9cb5a11e Reimar Döffinger
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
575 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
576
            u1 = u;
577
            v1 = v;
578
            a1 = a;
579
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
580
581 f8ca63e8 Björn Axelsson
            YUVA_IN(y, u, v, a, p + BPP, pal);
582 72ce053b Ian Caulfield
            u1 += u;
583
            v1 += v;
584
            a1 += a;
585
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
586
            p += wrap3;
587
            lum += wrap;
588
589
            YUVA_IN(y, u, v, a, p, pal);
590
            u1 += u;
591
            v1 += v;
592
            a1 += a;
593
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
594
595 f8ca63e8 Björn Axelsson
            YUVA_IN(y, u, v, a, p + BPP, pal);
596 72ce053b Ian Caulfield
            u1 += u;
597
            v1 += v;
598
            a1 += a;
599
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
600
601
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
602
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
603
604
            cb++;
605
            cr++;
606
            p += -wrap3 + 2 * BPP;
607
            lum += -wrap + 2;
608
        }
609
        if (w) {
610
            YUVA_IN(y, u, v, a, p, pal);
611
            u1 = u;
612
            v1 = v;
613
            a1 = a;
614
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
615
            p += wrap3;
616
            lum += wrap;
617
            YUVA_IN(y, u, v, a, p, pal);
618
            u1 += u;
619
            v1 += v;
620
            a1 += a;
621
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
622
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
623
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
624
            cb++;
625
            cr++;
626
            p += -wrap3 + BPP;
627
            lum += -wrap + 1;
628
        }
629 9cb5a11e Reimar Döffinger
        p += wrap3 + (wrap3 - dstw * BPP);
630
        lum += wrap + (wrap - dstw - dstx);
631 72ce053b Ian Caulfield
        cb += dst->linesize[1] - width2 - skip2;
632
        cr += dst->linesize[2] - width2 - skip2;
633
    }
634
    /* handle odd height */
635
    if (h) {
636 9cb5a11e Reimar Döffinger
        lum += dstx;
637 72ce053b Ian Caulfield
        cb += skip2;
638
        cr += skip2;
639 115329f1 Diego Biurrun
640 9cb5a11e Reimar Döffinger
        if (dstx & 1) {
641 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
642
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
643
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
644
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
645
            cb++;
646
            cr++;
647
            lum++;
648
            p += BPP;
649
        }
650 9cb5a11e Reimar Döffinger
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
651 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
652
            u1 = u;
653
            v1 = v;
654
            a1 = a;
655
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
656
657
            YUVA_IN(y, u, v, a, p + BPP, pal);
658
            u1 += u;
659
            v1 += v;
660
            a1 += a;
661
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
662
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
663
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
664
            cb++;
665
            cr++;
666
            p += 2 * BPP;
667
            lum += 2;
668
        }
669
        if (w) {
670
            YUVA_IN(y, u, v, a, p, pal);
671
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
672
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
673
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
674
        }
675
    }
676
}
677
678
static void free_subpicture(SubPicture *sp)
679
{
680 e1d7c883 Reimar Döffinger
    avsubtitle_free(&sp->sub);
681 72ce053b Ian Caulfield
}
682
683 01310af2 Fabrice Bellard
static void video_image_display(VideoState *is)
684
{
685
    VideoPicture *vp;
686 72ce053b Ian Caulfield
    SubPicture *sp;
687
    AVPicture pict;
688 01310af2 Fabrice Bellard
    float aspect_ratio;
689
    int width, height, x, y;
690
    SDL_Rect rect;
691 72ce053b Ian Caulfield
    int i;
692 01310af2 Fabrice Bellard
693
    vp = &is->pictq[is->pictq_rindex];
694
    if (vp->bmp) {
695 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
696 cc80caff S.N. Hemanth Meenakshisundaram
         if (vp->picref->video->pixel_aspect.num == 0)
697 917d2bb3 Michael Niedermayer
             aspect_ratio = 0;
698
         else
699 cc80caff S.N. Hemanth Meenakshisundaram
             aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
700 917d2bb3 Michael Niedermayer
#else
701
702 01310af2 Fabrice Bellard
        /* XXX: use variable in the frame */
703 c30a4489 Aurelien Jacobs
        if (is->video_st->sample_aspect_ratio.num)
704
            aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
705
        else if (is->video_st->codec->sample_aspect_ratio.num)
706
            aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
707 72ea344b Fabrice Bellard
        else
708 c30a4489 Aurelien Jacobs
            aspect_ratio = 0;
709 917d2bb3 Michael Niedermayer
#endif
710 01310af2 Fabrice Bellard
        if (aspect_ratio <= 0.0)
711 c30a4489 Aurelien Jacobs
            aspect_ratio = 1.0;
712 917d2bb3 Michael Niedermayer
        aspect_ratio *= (float)vp->width / (float)vp->height;
713 01310af2 Fabrice Bellard
        /* if an active format is indicated, then it overrides the
714
           mpeg format */
715
#if 0
716 01f4895c Michael Niedermayer
        if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
717
            is->dtg_active_format = is->video_st->codec->dtg_active_format;
718 01310af2 Fabrice Bellard
            printf("dtg_active_format=%d\n", is->dtg_active_format);
719
        }
720
#endif
721
#if 0
722 01f4895c Michael Niedermayer
        switch(is->video_st->codec->dtg_active_format) {
723 01310af2 Fabrice Bellard
        case FF_DTG_AFD_SAME:
724
        default:
725
            /* nothing to do */
726
            break;
727
        case FF_DTG_AFD_4_3:
728
            aspect_ratio = 4.0 / 3.0;
729
            break;
730
        case FF_DTG_AFD_16_9:
731
            aspect_ratio = 16.0 / 9.0;
732
            break;
733
        case FF_DTG_AFD_14_9:
734
            aspect_ratio = 14.0 / 9.0;
735
            break;
736
        case FF_DTG_AFD_4_3_SP_14_9:
737
            aspect_ratio = 14.0 / 9.0;
738
            break;
739
        case FF_DTG_AFD_16_9_SP_14_9:
740
            aspect_ratio = 14.0 / 9.0;
741
            break;
742
        case FF_DTG_AFD_SP_4_3:
743
            aspect_ratio = 4.0 / 3.0;
744
            break;
745
        }
746
#endif
747
748 72ce053b Ian Caulfield
        if (is->subtitle_st)
749
        {
750
            if (is->subpq_size > 0)
751
            {
752
                sp = &is->subpq[is->subpq_rindex];
753
754
                if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
755
                {
756
                    SDL_LockYUVOverlay (vp->bmp);
757
758
                    pict.data[0] = vp->bmp->pixels[0];
759
                    pict.data[1] = vp->bmp->pixels[2];
760
                    pict.data[2] = vp->bmp->pixels[1];
761
762
                    pict.linesize[0] = vp->bmp->pitches[0];
763
                    pict.linesize[1] = vp->bmp->pitches[2];
764
                    pict.linesize[2] = vp->bmp->pitches[1];
765
766
                    for (i = 0; i < sp->sub.num_rects; i++)
767 db4fac64 Michael Niedermayer
                        blend_subrect(&pict, sp->sub.rects[i],
768 0a8cd696 Reimar Döffinger
                                      vp->bmp->w, vp->bmp->h);
769 72ce053b Ian Caulfield
770
                    SDL_UnlockYUVOverlay (vp->bmp);
771
                }
772
            }
773
        }
774
775
776 01310af2 Fabrice Bellard
        /* XXX: we suppose the screen has a 1.0 pixel ratio */
777
        height = is->height;
778 bb6c34e5 Michael Niedermayer
        width = ((int)rint(height * aspect_ratio)) & ~1;
779 01310af2 Fabrice Bellard
        if (width > is->width) {
780
            width = is->width;
781 bb6c34e5 Michael Niedermayer
            height = ((int)rint(width / aspect_ratio)) & ~1;
782 01310af2 Fabrice Bellard
        }
783
        x = (is->width - width) / 2;
784
        y = (is->height - height) / 2;
785
        if (!is->no_background) {
786
            /* fill the background */
787
            //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
788
        } else {
789
            is->no_background = 0;
790
        }
791
        rect.x = is->xleft + x;
792 2f6547fb Baptiste Coudurier
        rect.y = is->ytop  + y;
793 01310af2 Fabrice Bellard
        rect.w = width;
794
        rect.h = height;
795
        SDL_DisplayYUVOverlay(vp->bmp, &rect);
796
    } else {
797
#if 0
798 115329f1 Diego Biurrun
        fill_rectangle(screen,
799
                       is->xleft, is->ytop, is->width, is->height,
800 01310af2 Fabrice Bellard
                       QERGB(0x00, 0x00, 0x00));
801
#endif
802
    }
803
}
804
805
static inline int compute_mod(int a, int b)
806
{
807
    a = a % b;
808 115329f1 Diego Biurrun
    if (a >= 0)
809 01310af2 Fabrice Bellard
        return a;
810
    else
811
        return a + b;
812
}
813
814
static void video_audio_display(VideoState *s)
815
{
816
    int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
817
    int ch, channels, h, h2, bgcolor, fgcolor;
818
    int16_t time_diff;
819 4c7c7645 Michael Niedermayer
    int rdft_bits, nb_freq;
820
821
    for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
822
        ;
823
    nb_freq= 1<<(rdft_bits-1);
824 115329f1 Diego Biurrun
825 01310af2 Fabrice Bellard
    /* compute display index : center on currently output samples */
826 01f4895c Michael Niedermayer
    channels = s->audio_st->codec->channels;
827 01310af2 Fabrice Bellard
    nb_display_channels = channels;
828 5e0257e3 Fabrice Bellard
    if (!s->paused) {
829 4c7c7645 Michael Niedermayer
        int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
830 5e0257e3 Fabrice Bellard
        n = 2 * channels;
831
        delay = audio_write_get_buf_size(s);
832
        delay /= n;
833 115329f1 Diego Biurrun
834 5e0257e3 Fabrice Bellard
        /* to be more precise, we take into account the time spent since
835
           the last buffer computation */
836
        if (audio_callback_time) {
837
            time_diff = av_gettime() - audio_callback_time;
838 122dcdcb Michael Niedermayer
            delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
839 5e0257e3 Fabrice Bellard
        }
840 115329f1 Diego Biurrun
841 122dcdcb Michael Niedermayer
        delay += 2*data_used;
842 4c7c7645 Michael Niedermayer
        if (delay < data_used)
843
            delay = data_used;
844 ac50bcc8 Michael Niedermayer
845
        i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
846 12eeda34 Michael Niedermayer
        if(s->show_audio==1){
847 6c7165c7 Jai Menon
            h= INT_MIN;
848
            for(i=0; i<1000; i+=channels){
849
                int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
850
                int a= s->sample_array[idx];
851
                int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
852
                int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
853
                int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
854
                int score= a-d;
855
                if(h<score && (b^c)<0){
856
                    h= score;
857
                    i_start= idx;
858
                }
859 ac50bcc8 Michael Niedermayer
            }
860
        }
861
862 5e0257e3 Fabrice Bellard
        s->last_i_start = i_start;
863
    } else {
864
        i_start = s->last_i_start;
865 01310af2 Fabrice Bellard
    }
866
867
    bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
868 12eeda34 Michael Niedermayer
    if(s->show_audio==1){
869 6c7165c7 Jai Menon
        fill_rectangle(screen,
870
                       s->xleft, s->ytop, s->width, s->height,
871
                       bgcolor);
872
873
        fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
874
875
        /* total height for one channel */
876
        h = s->height / nb_display_channels;
877
        /* graph height / 2 */
878
        h2 = (h * 9) / 20;
879
        for(ch = 0;ch < nb_display_channels; ch++) {
880
            i = i_start + ch;
881
            y1 = s->ytop + ch * h + (h / 2); /* position of center line */
882
            for(x = 0; x < s->width; x++) {
883
                y = (s->sample_array[i] * h2) >> 15;
884
                if (y < 0) {
885
                    y = -y;
886
                    ys = y1 - y;
887
                } else {
888
                    ys = y1;
889
                }
890
                fill_rectangle(screen,
891
                               s->xleft + x, ys, 1, y,
892
                               fgcolor);
893
                i += channels;
894
                if (i >= SAMPLE_ARRAY_SIZE)
895
                    i -= SAMPLE_ARRAY_SIZE;
896 01310af2 Fabrice Bellard
            }
897
        }
898
899 6c7165c7 Jai Menon
        fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
900 01310af2 Fabrice Bellard
901 6c7165c7 Jai Menon
        for(ch = 1;ch < nb_display_channels; ch++) {
902
            y = s->ytop + ch * h;
903
            fill_rectangle(screen,
904
                           s->xleft, y, s->width, 1,
905
                           fgcolor);
906
        }
907
        SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
908 12eeda34 Michael Niedermayer
    }else{
909
        nb_display_channels= FFMIN(nb_display_channels, 2);
910
        if(rdft_bits != s->rdft_bits){
911 166621ab Måns Rullgård
            av_rdft_end(s->rdft);
912 7dbbf6a1 Måns Rullgård
            av_free(s->rdft_data);
913 166621ab Måns Rullgård
            s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
914 12eeda34 Michael Niedermayer
            s->rdft_bits= rdft_bits;
915 7dbbf6a1 Måns Rullgård
            s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
916 12eeda34 Michael Niedermayer
        }
917
        {
918 7dbbf6a1 Måns Rullgård
            FFTSample *data[2];
919 12eeda34 Michael Niedermayer
            for(ch = 0;ch < nb_display_channels; ch++) {
920 7dbbf6a1 Måns Rullgård
                data[ch] = s->rdft_data + 2*nb_freq*ch;
921 12eeda34 Michael Niedermayer
                i = i_start + ch;
922
                for(x = 0; x < 2*nb_freq; x++) {
923
                    double w= (x-nb_freq)*(1.0/nb_freq);
924
                    data[ch][x]= s->sample_array[i]*(1.0-w*w);
925
                    i += channels;
926
                    if (i >= SAMPLE_ARRAY_SIZE)
927
                        i -= SAMPLE_ARRAY_SIZE;
928
                }
929 166621ab Måns Rullgård
                av_rdft_calc(s->rdft, data[ch]);
930 12eeda34 Michael Niedermayer
            }
931
            //least efficient way to do this, we should of course directly access it but its more than fast enough
932 092421cf Michael Niedermayer
            for(y=0; y<s->height; y++){
933 12eeda34 Michael Niedermayer
                double w= 1/sqrt(nb_freq);
934
                int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1]));
935 00f72577 Jai Menon
                int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
936
                       + data[1][2*y+1]*data[1][2*y+1])) : a;
937 12eeda34 Michael Niedermayer
                a= FFMIN(a,255);
938
                b= FFMIN(b,255);
939
                fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
940
941
                fill_rectangle(screen,
942
                            s->xpos, s->height-y, 1, 1,
943
                            fgcolor);
944
            }
945
        }
946
        SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
947
        s->xpos++;
948
        if(s->xpos >= s->width)
949
            s->xpos= s->xleft;
950
    }
951 01310af2 Fabrice Bellard
}
952
953 990c8438 Michael Niedermayer
static int video_open(VideoState *is){
954
    int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
955
    int w,h;
956
957 fb84155b Michael Niedermayer
    if(is_full_screen) flags |= SDL_FULLSCREEN;
958
    else               flags |= SDL_RESIZABLE;
959
960 990c8438 Michael Niedermayer
    if (is_full_screen && fs_screen_width) {
961
        w = fs_screen_width;
962
        h = fs_screen_height;
963 fb84155b Michael Niedermayer
    } else if(!is_full_screen && screen_width){
964
        w = screen_width;
965
        h = screen_height;
966 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
967
    }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
968
        w = is->out_video_filter->inputs[0]->w;
969
        h = is->out_video_filter->inputs[0]->h;
970
#else
971 fb84155b Michael Niedermayer
    }else if (is->video_st && is->video_st->codec->width){
972
        w = is->video_st->codec->width;
973
        h = is->video_st->codec->height;
974 917d2bb3 Michael Niedermayer
#endif
975 990c8438 Michael Niedermayer
    } else {
976 fb84155b Michael Niedermayer
        w = 640;
977
        h = 480;
978 990c8438 Michael Niedermayer
    }
979 d3d7b12e Michael Niedermayer
    if(screen && is->width == screen->w && screen->w == w
980
       && is->height== screen->h && screen->h == h)
981
        return 0;
982
983 c97f5402 Diego Biurrun
#ifndef __APPLE__
984 990c8438 Michael Niedermayer
    screen = SDL_SetVideoMode(w, h, 0, flags);
985
#else
986
    /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
987
    screen = SDL_SetVideoMode(w, h, 24, flags);
988
#endif
989
    if (!screen) {
990
        fprintf(stderr, "SDL: could not set video mode - exiting\n");
991
        return -1;
992
    }
993 076db5ed Robert Krüger
    if (!window_title)
994
        window_title = input_filename;
995
    SDL_WM_SetCaption(window_title, window_title);
996 990c8438 Michael Niedermayer
997
    is->width = screen->w;
998
    is->height = screen->h;
999
1000
    return 0;
1001
}
1002 8c982c5d Michael Niedermayer
1003 01310af2 Fabrice Bellard
/* display the current picture, if any */
1004
static void video_display(VideoState *is)
1005
{
1006 8c982c5d Michael Niedermayer
    if(!screen)
1007
        video_open(cur_stream);
1008 115329f1 Diego Biurrun
    if (is->audio_st && is->show_audio)
1009 01310af2 Fabrice Bellard
        video_audio_display(is);
1010
    else if (is->video_st)
1011
        video_image_display(is);
1012
}
1013
1014 d38c9e7a Michael Niedermayer
static int refresh_thread(void *opaque)
1015 01310af2 Fabrice Bellard
{
1016 d38c9e7a Michael Niedermayer
    VideoState *is= opaque;
1017
    while(!is->abort_request){
1018 d881a0e8 Stefano Sabatini
        SDL_Event event;
1019
        event.type = FF_REFRESH_EVENT;
1020
        event.user.data1 = opaque;
1021 d38c9e7a Michael Niedermayer
        if(!is->refresh){
1022
            is->refresh=1;
1023 d881a0e8 Stefano Sabatini
            SDL_PushEvent(&event);
1024 d38c9e7a Michael Niedermayer
        }
1025 2b3da32f Michael Niedermayer
        usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1026 d38c9e7a Michael Niedermayer
    }
1027
    return 0;
1028 01310af2 Fabrice Bellard
}
1029
1030 638c9d91 Fabrice Bellard
/* get the current audio clock value */
1031
static double get_audio_clock(VideoState *is)
1032
{
1033
    double pts;
1034
    int hw_buf_size, bytes_per_sec;
1035
    pts = is->audio_clock;
1036
    hw_buf_size = audio_write_get_buf_size(is);
1037
    bytes_per_sec = 0;
1038
    if (is->audio_st) {
1039 115329f1 Diego Biurrun
        bytes_per_sec = is->audio_st->codec->sample_rate *
1040 01f4895c Michael Niedermayer
            2 * is->audio_st->codec->channels;
1041 638c9d91 Fabrice Bellard
    }
1042
    if (bytes_per_sec)
1043
        pts -= (double)hw_buf_size / bytes_per_sec;
1044
    return pts;
1045
}
1046
1047
/* get the current video clock value */
1048
static double get_video_clock(VideoState *is)
1049
{
1050 04108619 Michael Niedermayer
    if (is->paused) {
1051 41a4cd0c Michael Niedermayer
        return is->video_current_pts;
1052 72ea344b Fabrice Bellard
    } else {
1053 68aefbe8 Michael Niedermayer
        return is->video_current_pts_drift + av_gettime() / 1000000.0;
1054 72ea344b Fabrice Bellard
    }
1055 638c9d91 Fabrice Bellard
}
1056
1057
/* get the current external clock value */
1058
static double get_external_clock(VideoState *is)
1059
{
1060
    int64_t ti;
1061
    ti = av_gettime();
1062
    return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1063
}
1064
1065
/* get the current master clock value */
1066
static double get_master_clock(VideoState *is)
1067
{
1068
    double val;
1069
1070 72ea344b Fabrice Bellard
    if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1071
        if (is->video_st)
1072
            val = get_video_clock(is);
1073
        else
1074
            val = get_audio_clock(is);
1075
    } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1076
        if (is->audio_st)
1077
            val = get_audio_clock(is);
1078
        else
1079
            val = get_video_clock(is);
1080
    } else {
1081 638c9d91 Fabrice Bellard
        val = get_external_clock(is);
1082 72ea344b Fabrice Bellard
    }
1083 638c9d91 Fabrice Bellard
    return val;
1084
}
1085
1086 72ea344b Fabrice Bellard
/* seek in the stream */
1087 2ef46053 Michael Niedermayer
static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1088 72ea344b Fabrice Bellard
{
1089 687fae2b Ivan Wong
    if (!is->seek_req) {
1090
        is->seek_pos = pos;
1091 4ed29207 Michael Niedermayer
        is->seek_rel = rel;
1092 3890dd3a Michael Niedermayer
        is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1093 94b594c6 Steve L'Homme
        if (seek_by_bytes)
1094
            is->seek_flags |= AVSEEK_FLAG_BYTE;
1095 687fae2b Ivan Wong
        is->seek_req = 1;
1096
    }
1097 72ea344b Fabrice Bellard
}
1098
1099
/* pause or resume the video */
1100
static void stream_pause(VideoState *is)
1101
{
1102 68aefbe8 Michael Niedermayer
    if (is->paused) {
1103
        is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1104 f5668147 Michael Niedermayer
        if(is->read_pause_return != AVERROR(ENOSYS)){
1105 68aefbe8 Michael Niedermayer
            is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1106 f5668147 Michael Niedermayer
        }
1107 68aefbe8 Michael Niedermayer
        is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1108 72ea344b Fabrice Bellard
    }
1109 68aefbe8 Michael Niedermayer
    is->paused = !is->paused;
1110 72ea344b Fabrice Bellard
}
1111
1112 d38c9e7a Michael Niedermayer
static double compute_target_time(double frame_current_pts, VideoState *is)
1113 49410784 Tomer Barletz
{
1114 d38c9e7a Michael Niedermayer
    double delay, sync_threshold, diff;
1115 49410784 Tomer Barletz
1116
    /* compute nominal delay */
1117
    delay = frame_current_pts - is->frame_last_pts;
1118
    if (delay <= 0 || delay >= 10.0) {
1119
        /* if incorrect delay, use previous one */
1120
        delay = is->frame_last_delay;
1121 443658fd Tomer Barletz
    } else {
1122 712de377 Benoit Fouet
        is->frame_last_delay = delay;
1123 443658fd Tomer Barletz
    }
1124 49410784 Tomer Barletz
    is->frame_last_pts = frame_current_pts;
1125
1126
    /* update delay to follow master synchronisation source */
1127
    if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1128
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1129
        /* if video is slave, we try to correct big delays by
1130
           duplicating or deleting a frame */
1131 f04c6e35 Michael Niedermayer
        diff = get_video_clock(is) - get_master_clock(is);
1132 49410784 Tomer Barletz
1133
        /* skip or repeat frame. We take into account the
1134
           delay to compute the threshold. I still don't know
1135
           if it is the best guess */
1136
        sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1137
        if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1138
            if (diff <= -sync_threshold)
1139
                delay = 0;
1140
            else if (diff >= sync_threshold)
1141
                delay = 2 * delay;
1142
        }
1143
    }
1144
    is->frame_timer += delay;
1145 eecc17a7 Tomer Barletz
#if defined(DEBUG_SYNC)
1146
    printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1147
            delay, actual_delay, frame_current_pts, -diff);
1148
#endif
1149
1150 d38c9e7a Michael Niedermayer
    return is->frame_timer;
1151 49410784 Tomer Barletz
}
1152
1153 01310af2 Fabrice Bellard
/* called to display each frame */
1154
static void video_refresh_timer(void *opaque)
1155
{
1156
    VideoState *is = opaque;
1157
    VideoPicture *vp;
1158 638c9d91 Fabrice Bellard
1159 72ce053b Ian Caulfield
    SubPicture *sp, *sp2;
1160 01310af2 Fabrice Bellard
1161
    if (is->video_st) {
1162 d38c9e7a Michael Niedermayer
retry:
1163 01310af2 Fabrice Bellard
        if (is->pictq_size == 0) {
1164 d38c9e7a Michael Niedermayer
            //nothing to do, no picture to display in the que
1165 01310af2 Fabrice Bellard
        } else {
1166 d38c9e7a Michael Niedermayer
            double time= av_gettime()/1000000.0;
1167
            double next_target;
1168 638c9d91 Fabrice Bellard
            /* dequeue the picture */
1169 01310af2 Fabrice Bellard
            vp = &is->pictq[is->pictq_rindex];
1170 638c9d91 Fabrice Bellard
1171 d38c9e7a Michael Niedermayer
            if(time < vp->target_clock)
1172
                return;
1173 638c9d91 Fabrice Bellard
            /* update current video pts */
1174
            is->video_current_pts = vp->pts;
1175 d38c9e7a Michael Niedermayer
            is->video_current_pts_drift = is->video_current_pts - time;
1176 a3cc2160 Michael Niedermayer
            is->video_current_pos = vp->pos;
1177 d38c9e7a Michael Niedermayer
            if(is->pictq_size > 1){
1178
                VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1179
                assert(nextvp->target_clock >= vp->target_clock);
1180
                next_target= nextvp->target_clock;
1181
            }else{
1182
                next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1183
            }
1184
            if(framedrop && time > next_target){
1185
                is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1186
                if(is->pictq_size > 1 || time > next_target + 0.5){
1187
                    /* update queue size and signal for next picture */
1188
                    if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1189
                        is->pictq_rindex = 0;
1190
1191
                    SDL_LockMutex(is->pictq_mutex);
1192
                    is->pictq_size--;
1193
                    SDL_CondSignal(is->pictq_cond);
1194
                    SDL_UnlockMutex(is->pictq_mutex);
1195
                    goto retry;
1196
                }
1197
            }
1198 638c9d91 Fabrice Bellard
1199 72ce053b Ian Caulfield
            if(is->subtitle_st) {
1200
                if (is->subtitle_stream_changed) {
1201
                    SDL_LockMutex(is->subpq_mutex);
1202 115329f1 Diego Biurrun
1203 72ce053b Ian Caulfield
                    while (is->subpq_size) {
1204
                        free_subpicture(&is->subpq[is->subpq_rindex]);
1205 115329f1 Diego Biurrun
1206 72ce053b Ian Caulfield
                        /* update queue size and signal for next picture */
1207
                        if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1208
                            is->subpq_rindex = 0;
1209 115329f1 Diego Biurrun
1210 72ce053b Ian Caulfield
                        is->subpq_size--;
1211
                    }
1212
                    is->subtitle_stream_changed = 0;
1213
1214
                    SDL_CondSignal(is->subpq_cond);
1215
                    SDL_UnlockMutex(is->subpq_mutex);
1216
                } else {
1217
                    if (is->subpq_size > 0) {
1218
                        sp = &is->subpq[is->subpq_rindex];
1219
1220
                        if (is->subpq_size > 1)
1221
                            sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1222
                        else
1223
                            sp2 = NULL;
1224
1225
                        if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1226
                                || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1227
                        {
1228
                            free_subpicture(sp);
1229
1230
                            /* update queue size and signal for next picture */
1231
                            if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1232
                                is->subpq_rindex = 0;
1233
1234
                            SDL_LockMutex(is->subpq_mutex);
1235
                            is->subpq_size--;
1236
                            SDL_CondSignal(is->subpq_cond);
1237
                            SDL_UnlockMutex(is->subpq_mutex);
1238
                        }
1239
                    }
1240
                }
1241
            }
1242
1243 01310af2 Fabrice Bellard
            /* display picture */
1244 112c4b87 Stefano Sabatini
            if (!display_disable)
1245 24d13ebc Stefano Sabatini
                video_display(is);
1246 115329f1 Diego Biurrun
1247 01310af2 Fabrice Bellard
            /* update queue size and signal for next picture */
1248
            if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1249
                is->pictq_rindex = 0;
1250 115329f1 Diego Biurrun
1251 01310af2 Fabrice Bellard
            SDL_LockMutex(is->pictq_mutex);
1252
            is->pictq_size--;
1253
            SDL_CondSignal(is->pictq_cond);
1254
            SDL_UnlockMutex(is->pictq_mutex);
1255
        }
1256
    } else if (is->audio_st) {
1257
        /* draw the next audio frame */
1258
1259
        /* if only audio stream, then display the audio bars (better
1260
           than nothing, just to test the implementation */
1261 115329f1 Diego Biurrun
1262 01310af2 Fabrice Bellard
        /* display picture */
1263 112c4b87 Stefano Sabatini
        if (!display_disable)
1264 24d13ebc Stefano Sabatini
            video_display(is);
1265 01310af2 Fabrice Bellard
    }
1266
    if (show_status) {
1267
        static int64_t last_time;
1268
        int64_t cur_time;
1269 72ce053b Ian Caulfield
        int aqsize, vqsize, sqsize;
1270 638c9d91 Fabrice Bellard
        double av_diff;
1271 115329f1 Diego Biurrun
1272 01310af2 Fabrice Bellard
        cur_time = av_gettime();
1273 1e1a0b18 Baptiste Coudurier
        if (!last_time || (cur_time - last_time) >= 30000) {
1274 01310af2 Fabrice Bellard
            aqsize = 0;
1275
            vqsize = 0;
1276 72ce053b Ian Caulfield
            sqsize = 0;
1277 01310af2 Fabrice Bellard
            if (is->audio_st)
1278
                aqsize = is->audioq.size;
1279
            if (is->video_st)
1280
                vqsize = is->videoq.size;
1281 72ce053b Ian Caulfield
            if (is->subtitle_st)
1282
                sqsize = is->subtitleq.size;
1283 638c9d91 Fabrice Bellard
            av_diff = 0;
1284
            if (is->audio_st && is->video_st)
1285
                av_diff = get_audio_clock(is) - get_video_clock(is);
1286 382f3a5b Michael Niedermayer
            printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
1287 76ad67ca Nicolas George
                   get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->video_st->codec->pts_correction_num_faulty_dts, is->video_st->codec->pts_correction_num_faulty_pts);
1288 01310af2 Fabrice Bellard
            fflush(stdout);
1289
            last_time = cur_time;
1290
        }
1291
    }
1292
}
1293
1294 f7b8c814 Mike Scheutzow
static void stream_close(VideoState *is)
1295
{
1296
    VideoPicture *vp;
1297
    int i;
1298
    /* XXX: use a special url_shutdown call to abort parse cleanly */
1299
    is->abort_request = 1;
1300
    SDL_WaitThread(is->parse_tid, NULL);
1301
    SDL_WaitThread(is->refresh_tid, NULL);
1302
1303
    /* free all pictures */
1304
    for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1305
        vp = &is->pictq[i];
1306
#if CONFIG_AVFILTER
1307
        if (vp->picref) {
1308
            avfilter_unref_buffer(vp->picref);
1309
            vp->picref = NULL;
1310
        }
1311
#endif
1312
        if (vp->bmp) {
1313
            SDL_FreeYUVOverlay(vp->bmp);
1314
            vp->bmp = NULL;
1315
        }
1316
    }
1317
    SDL_DestroyMutex(is->pictq_mutex);
1318
    SDL_DestroyCond(is->pictq_cond);
1319
    SDL_DestroyMutex(is->subpq_mutex);
1320
    SDL_DestroyCond(is->subpq_cond);
1321
#if !CONFIG_AVFILTER
1322
    if (is->img_convert_ctx)
1323
        sws_freeContext(is->img_convert_ctx);
1324
#endif
1325
    av_free(is);
1326
}
1327
1328
static void do_exit(void)
1329
{
1330
    if (cur_stream) {
1331
        stream_close(cur_stream);
1332
        cur_stream = NULL;
1333
    }
1334 a5c33faa Reimar Döffinger
    uninit_opts();
1335 f7b8c814 Mike Scheutzow
#if CONFIG_AVFILTER
1336
    avfilter_uninit();
1337
#endif
1338
    if (show_status)
1339
        printf("\n");
1340
    SDL_Quit();
1341 6b6bca64 Michael Niedermayer
    av_log(NULL, AV_LOG_QUIET, "");
1342 f7b8c814 Mike Scheutzow
    exit(0);
1343
}
1344
1345 01310af2 Fabrice Bellard
/* allocate a picture (needs to do that in main thread to avoid
1346
   potential locking problems */
1347
static void alloc_picture(void *opaque)
1348
{
1349
    VideoState *is = opaque;
1350
    VideoPicture *vp;
1351
1352
    vp = &is->pictq[is->pictq_windex];
1353
1354
    if (vp->bmp)
1355
        SDL_FreeYUVOverlay(vp->bmp);
1356
1357 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1358
    if (vp->picref)
1359 7fce481a S.N. Hemanth Meenakshisundaram
        avfilter_unref_buffer(vp->picref);
1360 917d2bb3 Michael Niedermayer
    vp->picref = NULL;
1361
1362
    vp->width   = is->out_video_filter->inputs[0]->w;
1363
    vp->height  = is->out_video_filter->inputs[0]->h;
1364
    vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1365
#else
1366
    vp->width   = is->video_st->codec->width;
1367
    vp->height  = is->video_st->codec->height;
1368
    vp->pix_fmt = is->video_st->codec->pix_fmt;
1369
#endif
1370
1371
    vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1372 115329f1 Diego Biurrun
                                   SDL_YV12_OVERLAY,
1373 61890b02 Fabrice Bellard
                                   screen);
1374 cb036f90 Mike Scheutzow
    if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1375
        /* SDL allocates a buffer smaller than requested if the video
1376
         * overlay hardware is unable to support the requested size. */
1377
        fprintf(stderr, "Error: the video system does not support an image\n"
1378 aa78a6d6 Carl Eugen Hoyos
                        "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1379 cb036f90 Mike Scheutzow
                        "to reduce the image size.\n", vp->width, vp->height );
1380
        do_exit();
1381
    }
1382 01310af2 Fabrice Bellard
1383
    SDL_LockMutex(is->pictq_mutex);
1384
    vp->allocated = 1;
1385
    SDL_CondSignal(is->pictq_cond);
1386
    SDL_UnlockMutex(is->pictq_mutex);
1387
}
1388
1389 267e9dfa Michael Niedermayer
/**
1390
 *
1391
 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1392
 */
1393 1a620dd7 Michael Niedermayer
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1394 01310af2 Fabrice Bellard
{
1395
    VideoPicture *vp;
1396
    int dst_pix_fmt;
1397 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1398
    AVPicture pict_src;
1399
#endif
1400 01310af2 Fabrice Bellard
    /* wait until we have space to put a new picture */
1401
    SDL_LockMutex(is->pictq_mutex);
1402 d38c9e7a Michael Niedermayer
1403
    if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1404
        is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1405
1406 01310af2 Fabrice Bellard
    while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1407
           !is->videoq.abort_request) {
1408
        SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1409
    }
1410
    SDL_UnlockMutex(is->pictq_mutex);
1411 115329f1 Diego Biurrun
1412 01310af2 Fabrice Bellard
    if (is->videoq.abort_request)
1413
        return -1;
1414
1415
    vp = &is->pictq[is->pictq_windex];
1416
1417
    /* alloc or resize hardware picture buffer */
1418 115329f1 Diego Biurrun
    if (!vp->bmp ||
1419 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1420
        vp->width  != is->out_video_filter->inputs[0]->w ||
1421
        vp->height != is->out_video_filter->inputs[0]->h) {
1422
#else
1423 01f4895c Michael Niedermayer
        vp->width != is->video_st->codec->width ||
1424
        vp->height != is->video_st->codec->height) {
1425 917d2bb3 Michael Niedermayer
#endif
1426 01310af2 Fabrice Bellard
        SDL_Event event;
1427
1428
        vp->allocated = 0;
1429
1430
        /* the allocation must be done in the main thread to avoid
1431
           locking problems */
1432
        event.type = FF_ALLOC_EVENT;
1433
        event.user.data1 = is;
1434
        SDL_PushEvent(&event);
1435 115329f1 Diego Biurrun
1436 01310af2 Fabrice Bellard
        /* wait until the picture is allocated */
1437
        SDL_LockMutex(is->pictq_mutex);
1438
        while (!vp->allocated && !is->videoq.abort_request) {
1439
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1440
        }
1441
        SDL_UnlockMutex(is->pictq_mutex);
1442
1443
        if (is->videoq.abort_request)
1444
            return -1;
1445
    }
1446
1447 638c9d91 Fabrice Bellard
    /* if the frame is not skipped, then display it */
1448 01310af2 Fabrice Bellard
    if (vp->bmp) {
1449 fbf1b885 avcoder
        AVPicture pict;
1450 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1451
        if(vp->picref)
1452 7fce481a S.N. Hemanth Meenakshisundaram
            avfilter_unref_buffer(vp->picref);
1453 917d2bb3 Michael Niedermayer
        vp->picref = src_frame->opaque;
1454
#endif
1455 fbf1b885 avcoder
1456 01310af2 Fabrice Bellard
        /* get a pointer on the bitmap */
1457
        SDL_LockYUVOverlay (vp->bmp);
1458
1459
        dst_pix_fmt = PIX_FMT_YUV420P;
1460 fbf1b885 avcoder
        memset(&pict,0,sizeof(AVPicture));
1461 01310af2 Fabrice Bellard
        pict.data[0] = vp->bmp->pixels[0];
1462
        pict.data[1] = vp->bmp->pixels[2];
1463
        pict.data[2] = vp->bmp->pixels[1];
1464
1465
        pict.linesize[0] = vp->bmp->pitches[0];
1466
        pict.linesize[1] = vp->bmp->pitches[2];
1467
        pict.linesize[2] = vp->bmp->pitches[1];
1468 917d2bb3 Michael Niedermayer
1469
#if CONFIG_AVFILTER
1470
        pict_src.data[0] = src_frame->data[0];
1471
        pict_src.data[1] = src_frame->data[1];
1472
        pict_src.data[2] = src_frame->data[2];
1473
1474
        pict_src.linesize[0] = src_frame->linesize[0];
1475
        pict_src.linesize[1] = src_frame->linesize[1];
1476
        pict_src.linesize[2] = src_frame->linesize[2];
1477
1478
        //FIXME use direct rendering
1479
        av_picture_copy(&pict, &pict_src,
1480
                        vp->pix_fmt, vp->width, vp->height);
1481
#else
1482 e43d7a18 Michael Niedermayer
        sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1483 3ac56e28 Martin Storsjö
        is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1484 917d2bb3 Michael Niedermayer
            vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1485 feb7bc67 Alex Beregszaszi
            dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1486 3ac56e28 Martin Storsjö
        if (is->img_convert_ctx == NULL) {
1487 26ba8235 Alex Beregszaszi
            fprintf(stderr, "Cannot initialize the conversion context\n");
1488
            exit(1);
1489
        }
1490 3ac56e28 Martin Storsjö
        sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1491 917d2bb3 Michael Niedermayer
                  0, vp->height, pict.data, pict.linesize);
1492
#endif
1493 01310af2 Fabrice Bellard
        /* update the bitmap content */
1494
        SDL_UnlockYUVOverlay(vp->bmp);
1495
1496 638c9d91 Fabrice Bellard
        vp->pts = pts;
1497 1a620dd7 Michael Niedermayer
        vp->pos = pos;
1498 01310af2 Fabrice Bellard
1499
        /* now we can update the picture count */
1500
        if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1501
            is->pictq_windex = 0;
1502
        SDL_LockMutex(is->pictq_mutex);
1503 d38c9e7a Michael Niedermayer
        vp->target_clock= compute_target_time(vp->pts, is);
1504
1505 01310af2 Fabrice Bellard
        is->pictq_size++;
1506
        SDL_UnlockMutex(is->pictq_mutex);
1507
    }
1508 638c9d91 Fabrice Bellard
    return 0;
1509
}
1510
1511 115329f1 Diego Biurrun
/**
1512
 * compute the exact PTS for the picture if it is omitted in the stream
1513 267e9dfa Michael Niedermayer
 * @param pts1 the dts of the pkt / pts of the frame
1514
 */
1515 1a620dd7 Michael Niedermayer
static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1516 638c9d91 Fabrice Bellard
{
1517
    double frame_delay, pts;
1518 115329f1 Diego Biurrun
1519 638c9d91 Fabrice Bellard
    pts = pts1;
1520
1521 01310af2 Fabrice Bellard
    if (pts != 0) {
1522 638c9d91 Fabrice Bellard
        /* update video clock with pts, if present */
1523 01310af2 Fabrice Bellard
        is->video_clock = pts;
1524
    } else {
1525 72ea344b Fabrice Bellard
        pts = is->video_clock;
1526
    }
1527
    /* update video clock for next frame */
1528 01f4895c Michael Niedermayer
    frame_delay = av_q2d(is->video_st->codec->time_base);
1529 72ea344b Fabrice Bellard
    /* for MPEG2, the frame can be repeated, so we update the
1530
       clock accordingly */
1531 267e9dfa Michael Niedermayer
    frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1532 72ea344b Fabrice Bellard
    is->video_clock += frame_delay;
1533 638c9d91 Fabrice Bellard
1534
#if defined(DEBUG_SYNC) && 0
1535 ff358eca Stefano Sabatini
    printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1536
           av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1537 638c9d91 Fabrice Bellard
#endif
1538 1a620dd7 Michael Niedermayer
    return queue_picture(is, src_frame, pts, pos);
1539 01310af2 Fabrice Bellard
}
1540
1541 3966a574 Michael Niedermayer
static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1542 01310af2 Fabrice Bellard
{
1543 6c7d3ead Michael Niedermayer
    int len1, got_picture, i;
1544 01310af2 Fabrice Bellard
1545 199c18a7 Stefano Sabatini
    if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1546
        return -1;
1547 6c7d3ead Michael Niedermayer
1548 199c18a7 Stefano Sabatini
    if (pkt->data == flush_pkt.data) {
1549
        avcodec_flush_buffers(is->video_st->codec);
1550 6c7d3ead Michael Niedermayer
1551 199c18a7 Stefano Sabatini
        SDL_LockMutex(is->pictq_mutex);
1552
        //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1553
        for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1554
            is->pictq[i].target_clock= 0;
1555
        }
1556
        while (is->pictq_size && !is->videoq.abort_request) {
1557
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1558 39c6a118 Michael Niedermayer
        }
1559 199c18a7 Stefano Sabatini
        is->video_current_pos = -1;
1560
        SDL_UnlockMutex(is->pictq_mutex);
1561 39c6a118 Michael Niedermayer
1562 199c18a7 Stefano Sabatini
        is->frame_last_pts = AV_NOPTS_VALUE;
1563
        is->frame_last_delay = 0;
1564
        is->frame_timer = (double)av_gettime() / 1000000.0;
1565
        is->skip_frames = 1;
1566
        is->skip_frames_index = 0;
1567
        return 0;
1568
    }
1569 7a8bfa5d Alexander Strange
1570 199c18a7 Stefano Sabatini
    len1 = avcodec_decode_video2(is->video_st->codec,
1571
                                 frame, &got_picture,
1572
                                 pkt);
1573
1574
    if (got_picture) {
1575
        if (decoder_reorder_pts == -1) {
1576 76ad67ca Nicolas George
            *pts = frame->best_effort_timestamp;
1577 199c18a7 Stefano Sabatini
        } else if (decoder_reorder_pts) {
1578 2fa1d7b3 Stefano Sabatini
            *pts = frame->pkt_pts;
1579 199c18a7 Stefano Sabatini
        } else {
1580 fd0ae17a Alexander Strange
            *pts = frame->pkt_dts;
1581 199c18a7 Stefano Sabatini
        }
1582
1583
        if (*pts == AV_NOPTS_VALUE) {
1584
            *pts = 0;
1585 99e0b12b Michael Niedermayer
        }
1586 41db429d Michael Niedermayer
1587 d38c9e7a Michael Niedermayer
        is->skip_frames_index += 1;
1588
        if(is->skip_frames_index >= is->skip_frames){
1589
            is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1590
            return 1;
1591
        }
1592
1593
    }
1594 917d2bb3 Michael Niedermayer
    return 0;
1595
}
1596
1597
#if CONFIG_AVFILTER
1598
typedef struct {
1599
    VideoState *is;
1600
    AVFrame *frame;
1601 dd0c789b Bobby Bingham
    int use_dr1;
1602 917d2bb3 Michael Niedermayer
} FilterPriv;
1603
1604 dd0c789b Bobby Bingham
static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1605
{
1606
    AVFilterContext *ctx = codec->opaque;
1607 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef  *ref;
1608 dd0c789b Bobby Bingham
    int perms = AV_PERM_WRITE;
1609 65929418 François Revol
    int i, w, h, stride[4];
1610 dd0c789b Bobby Bingham
    unsigned edge;
1611
1612 0ccabeea Michael Niedermayer
    if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1613
        perms |= AV_PERM_NEG_LINESIZES;
1614
1615 dd0c789b Bobby Bingham
    if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1616
        if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1617
        if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1618
        if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1619
    }
1620
    if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1621
1622
    w = codec->width;
1623
    h = codec->height;
1624
    avcodec_align_dimensions2(codec, &w, &h, stride);
1625
    edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1626
    w += edge << 1;
1627
    h += edge << 1;
1628
1629
    if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1630
        return -1;
1631
1632 cc80caff S.N. Hemanth Meenakshisundaram
    ref->video->w = codec->width;
1633
    ref->video->h = codec->height;
1634 cfb7e6e6 Jai Menon
    for(i = 0; i < 4; i ++) {
1635 d54e0948 S.N. Hemanth Meenakshisundaram
        unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1636
        unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1637 dd0c789b Bobby Bingham
1638 3635c07b Jai Menon
        if (ref->data[i]) {
1639 e53ca636 Jai Menon
            ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1640 3635c07b Jai Menon
        }
1641 dd0c789b Bobby Bingham
        pic->data[i]     = ref->data[i];
1642
        pic->linesize[i] = ref->linesize[i];
1643
    }
1644
    pic->opaque = ref;
1645
    pic->age    = INT_MAX;
1646
    pic->type   = FF_BUFFER_TYPE_USER;
1647 867ab7fb Michael Niedermayer
    pic->reordered_opaque = codec->reordered_opaque;
1648 393cbb96 Michael Niedermayer
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1649
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1650 dd0c789b Bobby Bingham
    return 0;
1651
}
1652
1653
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1654
{
1655
    memset(pic->data, 0, sizeof(pic->data));
1656 7fce481a S.N. Hemanth Meenakshisundaram
    avfilter_unref_buffer(pic->opaque);
1657 dd0c789b Bobby Bingham
}
1658
1659 12bd3c1f Jai Menon
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1660
{
1661 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef *ref = pic->opaque;
1662 12bd3c1f Jai Menon
1663
    if (pic->data[0] == NULL) {
1664
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1665
        return codec->get_buffer(codec, pic);
1666
    }
1667
1668 cc80caff S.N. Hemanth Meenakshisundaram
    if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1669 d54e0948 S.N. Hemanth Meenakshisundaram
        (codec->pix_fmt != ref->format)) {
1670 12bd3c1f Jai Menon
        av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1671
        return -1;
1672
    }
1673
1674
    pic->reordered_opaque = codec->reordered_opaque;
1675 393cbb96 Michael Niedermayer
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1676
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1677 12bd3c1f Jai Menon
    return 0;
1678
}
1679
1680 917d2bb3 Michael Niedermayer
static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1681
{
1682
    FilterPriv *priv = ctx->priv;
1683 dd0c789b Bobby Bingham
    AVCodecContext *codec;
1684 917d2bb3 Michael Niedermayer
    if(!opaque) return -1;
1685
1686
    priv->is = opaque;
1687 dd0c789b Bobby Bingham
    codec    = priv->is->video_st->codec;
1688
    codec->opaque = ctx;
1689
    if(codec->codec->capabilities & CODEC_CAP_DR1) {
1690
        priv->use_dr1 = 1;
1691
        codec->get_buffer     = input_get_buffer;
1692
        codec->release_buffer = input_release_buffer;
1693 12bd3c1f Jai Menon
        codec->reget_buffer   = input_reget_buffer;
1694 b38f008e Alexander Strange
        codec->thread_safe_callbacks = 1;
1695 dd0c789b Bobby Bingham
    }
1696
1697 917d2bb3 Michael Niedermayer
    priv->frame = avcodec_alloc_frame();
1698
1699
    return 0;
1700
}
1701
1702
static void input_uninit(AVFilterContext *ctx)
1703
{
1704
    FilterPriv *priv = ctx->priv;
1705
    av_free(priv->frame);
1706
}
1707
1708
static int input_request_frame(AVFilterLink *link)
1709
{
1710
    FilterPriv *priv = link->src->priv;
1711 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef *picref;
1712 3966a574 Michael Niedermayer
    int64_t pts = 0;
1713 917d2bb3 Michael Niedermayer
    AVPacket pkt;
1714
    int ret;
1715
1716
    while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1717
        av_free_packet(&pkt);
1718
    if (ret < 0)
1719
        return -1;
1720
1721 dd0c789b Bobby Bingham
    if(priv->use_dr1) {
1722 7fce481a S.N. Hemanth Meenakshisundaram
        picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1723 dd0c789b Bobby Bingham
    } else {
1724 cf097cbc Bobby Bingham
        picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1725 34017fd9 Stefano Sabatini
        av_image_copy(picref->data, picref->linesize,
1726 4afbcf46 Stefano Sabatini
                      priv->frame->data, priv->frame->linesize,
1727
                      picref->format, link->w, link->h);
1728 dd0c789b Bobby Bingham
    }
1729 917d2bb3 Michael Niedermayer
    av_free_packet(&pkt);
1730
1731
    picref->pts = pts;
1732 bb409513 Stefano Sabatini
    picref->pos = pkt.pos;
1733 cc80caff S.N. Hemanth Meenakshisundaram
    picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1734 c41c5b02 Bobby Bingham
    avfilter_start_frame(link, picref);
1735 917d2bb3 Michael Niedermayer
    avfilter_draw_slice(link, 0, link->h, 1);
1736
    avfilter_end_frame(link);
1737
1738
    return 0;
1739
}
1740
1741
static int input_query_formats(AVFilterContext *ctx)
1742
{
1743
    FilterPriv *priv = ctx->priv;
1744
    enum PixelFormat pix_fmts[] = {
1745
        priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1746
    };
1747
1748
    avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1749
    return 0;
1750
}
1751
1752
static int input_config_props(AVFilterLink *link)
1753
{
1754
    FilterPriv *priv  = link->src->priv;
1755
    AVCodecContext *c = priv->is->video_st->codec;
1756
1757
    link->w = c->width;
1758
    link->h = c->height;
1759 387b4ac9 Stefano Sabatini
    link->time_base = priv->is->video_st->time_base;
1760 917d2bb3 Michael Niedermayer
1761
    return 0;
1762
}
1763
1764
static AVFilter input_filter =
1765
{
1766
    .name      = "ffplay_input",
1767
1768
    .priv_size = sizeof(FilterPriv),
1769
1770
    .init      = input_init,
1771
    .uninit    = input_uninit,
1772
1773
    .query_formats = input_query_formats,
1774
1775
    .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1776
    .outputs   = (AVFilterPad[]) {{ .name = "default",
1777 72415b2a Stefano Sabatini
                                    .type = AVMEDIA_TYPE_VIDEO,
1778 917d2bb3 Michael Niedermayer
                                    .request_frame = input_request_frame,
1779
                                    .config_props  = input_config_props, },
1780
                                  { .name = NULL }},
1781
};
1782
1783 8904a0f1 Stefano Sabatini
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1784 917d2bb3 Michael Niedermayer
{
1785 3f073fa2 Stefano Sabatini
    char sws_flags_str[128];
1786 8904a0f1 Stefano Sabatini
    int ret;
1787 f7ead94c Stefano Sabatini
    FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1788 917d2bb3 Michael Niedermayer
    AVFilterContext *filt_src = NULL, *filt_out = NULL;
1789 3f073fa2 Stefano Sabatini
    snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1790
    graph->scale_sws_opts = av_strdup(sws_flags_str);
1791 917d2bb3 Michael Niedermayer
1792 8904a0f1 Stefano Sabatini
    if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1793
                                            NULL, is, graph)) < 0)
1794 037be76e Stefano Sabatini
        goto the_end;
1795 8904a0f1 Stefano Sabatini
    if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1796
                                            NULL, &ffsink_ctx, graph)) < 0)
1797 037be76e Stefano Sabatini
        goto the_end;
1798 917d2bb3 Michael Niedermayer
1799
    if(vfilters) {
1800
        AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1801
        AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1802
1803
        outputs->name    = av_strdup("in");
1804 7313132b Stefano Sabatini
        outputs->filter_ctx = filt_src;
1805 917d2bb3 Michael Niedermayer
        outputs->pad_idx = 0;
1806
        outputs->next    = NULL;
1807
1808
        inputs->name    = av_strdup("out");
1809 7313132b Stefano Sabatini
        inputs->filter_ctx = filt_out;
1810 917d2bb3 Michael Niedermayer
        inputs->pad_idx = 0;
1811
        inputs->next    = NULL;
1812
1813 8904a0f1 Stefano Sabatini
        if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1814 917d2bb3 Michael Niedermayer
            goto the_end;
1815
        av_freep(&vfilters);
1816
    } else {
1817 8904a0f1 Stefano Sabatini
        if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1818
            goto the_end;
1819 917d2bb3 Michael Niedermayer
    }
1820
1821 8904a0f1 Stefano Sabatini
    if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1822 2a24df93 Stefano Sabatini
        goto the_end;
1823 917d2bb3 Michael Niedermayer
1824
    is->out_video_filter = filt_out;
1825 8904a0f1 Stefano Sabatini
the_end:
1826
    return ret;
1827
}
1828
1829
#endif  /* CONFIG_AVFILTER */
1830
1831
static int video_thread(void *arg)
1832
{
1833
    VideoState *is = arg;
1834
    AVFrame *frame= avcodec_alloc_frame();
1835
    int64_t pts_int;
1836
    double pts;
1837
    int ret;
1838
1839
#if CONFIG_AVFILTER
1840
    AVFilterGraph *graph = avfilter_graph_alloc();
1841
    AVFilterContext *filt_out = NULL;
1842
    int64_t pos;
1843
1844
    if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1845
        goto the_end;
1846
    filt_out = is->out_video_filter;
1847 917d2bb3 Michael Niedermayer
#endif
1848
1849
    for(;;) {
1850
#if !CONFIG_AVFILTER
1851
        AVPacket pkt;
1852 387b4ac9 Stefano Sabatini
#else
1853 ff0652e5 Stefano Sabatini
        AVFilterBufferRef *picref;
1854 387b4ac9 Stefano Sabatini
        AVRational tb;
1855 917d2bb3 Michael Niedermayer
#endif
1856
        while (is->paused && !is->videoq.abort_request)
1857
            SDL_Delay(10);
1858
#if CONFIG_AVFILTER
1859 ff0652e5 Stefano Sabatini
        ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1860
        if (picref) {
1861
            pts_int = picref->pts;
1862
            pos     = picref->pos;
1863
            frame->opaque = picref;
1864
        }
1865 387b4ac9 Stefano Sabatini
1866
        if (av_cmp_q(tb, is->video_st->time_base)) {
1867 97b925ea Stefano Sabatini
            av_unused int64_t pts1 = pts_int;
1868 387b4ac9 Stefano Sabatini
            pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1869 97b925ea Stefano Sabatini
            av_dlog(NULL, "video_thread(): "
1870
                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1871
                    tb.num, tb.den, pts1,
1872
                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1873 387b4ac9 Stefano Sabatini
        }
1874 917d2bb3 Michael Niedermayer
#else
1875
        ret = get_video_frame(is, frame, &pts_int, &pkt);
1876
#endif
1877
1878
        if (ret < 0) goto the_end;
1879
1880
        if (!ret)
1881
            continue;
1882
1883 3966a574 Michael Niedermayer
        pts = pts_int*av_q2d(is->video_st->time_base);
1884 917d2bb3 Michael Niedermayer
1885
#if CONFIG_AVFILTER
1886 bb409513 Stefano Sabatini
        ret = output_picture2(is, frame, pts, pos);
1887 917d2bb3 Michael Niedermayer
#else
1888 fca62599 Michael Niedermayer
        ret = output_picture2(is, frame, pts,  pkt.pos);
1889 917d2bb3 Michael Niedermayer
        av_free_packet(&pkt);
1890
#endif
1891
        if (ret < 0)
1892
            goto the_end;
1893
1894 115329f1 Diego Biurrun
        if (step)
1895 bba04f1e Wolfgang Hesseler
            if (cur_stream)
1896
                stream_pause(cur_stream);
1897 01310af2 Fabrice Bellard
    }
1898
 the_end:
1899 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1900 ab543afe Stefano Sabatini
    avfilter_graph_free(&graph);
1901 917d2bb3 Michael Niedermayer
#endif
1902 c6b1edc9 Michael Niedermayer
    av_free(frame);
1903 01310af2 Fabrice Bellard
    return 0;
1904
}
1905
1906 72ce053b Ian Caulfield
static int subtitle_thread(void *arg)
1907
{
1908
    VideoState *is = arg;
1909
    SubPicture *sp;
1910
    AVPacket pkt1, *pkt = &pkt1;
1911
    int len1, got_subtitle;
1912
    double pts;
1913
    int i, j;
1914
    int r, g, b, y, u, v, a;
1915
1916
    for(;;) {
1917
        while (is->paused && !is->subtitleq.abort_request) {
1918
            SDL_Delay(10);
1919
        }
1920
        if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1921
            break;
1922 115329f1 Diego Biurrun
1923 39c6a118 Michael Niedermayer
        if(pkt->data == flush_pkt.data){
1924
            avcodec_flush_buffers(is->subtitle_st->codec);
1925
            continue;
1926
        }
1927 72ce053b Ian Caulfield
        SDL_LockMutex(is->subpq_mutex);
1928
        while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1929
               !is->subtitleq.abort_request) {
1930
            SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1931
        }
1932
        SDL_UnlockMutex(is->subpq_mutex);
1933 115329f1 Diego Biurrun
1934 72ce053b Ian Caulfield
        if (is->subtitleq.abort_request)
1935
            goto the_end;
1936 115329f1 Diego Biurrun
1937 72ce053b Ian Caulfield
        sp = &is->subpq[is->subpq_windex];
1938
1939
       /* NOTE: ipts is the PTS of the _first_ picture beginning in
1940
           this packet, if any */
1941
        pts = 0;
1942
        if (pkt->pts != AV_NOPTS_VALUE)
1943
            pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1944
1945 bea18375 Thilo Borgmann
        len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1946 115329f1 Diego Biurrun
                                    &sp->sub, &got_subtitle,
1947 bea18375 Thilo Borgmann
                                    pkt);
1948 72ce053b Ian Caulfield
//            if (len1 < 0)
1949
//                break;
1950
        if (got_subtitle && sp->sub.format == 0) {
1951
            sp->pts = pts;
1952 115329f1 Diego Biurrun
1953 72ce053b Ian Caulfield
            for (i = 0; i < sp->sub.num_rects; i++)
1954
            {
1955 db4fac64 Michael Niedermayer
                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1956 72ce053b Ian Caulfield
                {
1957 25b4c651 Michael Niedermayer
                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1958 72ce053b Ian Caulfield
                    y = RGB_TO_Y_CCIR(r, g, b);
1959
                    u = RGB_TO_U_CCIR(r, g, b, 0);
1960
                    v = RGB_TO_V_CCIR(r, g, b, 0);
1961 25b4c651 Michael Niedermayer
                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1962 72ce053b Ian Caulfield
                }
1963
            }
1964
1965
            /* now we can update the picture count */
1966
            if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1967
                is->subpq_windex = 0;
1968
            SDL_LockMutex(is->subpq_mutex);
1969
            is->subpq_size++;
1970
            SDL_UnlockMutex(is->subpq_mutex);
1971
        }
1972
        av_free_packet(pkt);
1973 115329f1 Diego Biurrun
//        if (step)
1974 72ce053b Ian Caulfield
//            if (cur_stream)
1975
//                stream_pause(cur_stream);
1976
    }
1977
 the_end:
1978
    return 0;
1979
}
1980
1981 01310af2 Fabrice Bellard
/* copy samples for viewing in editor window */
1982
static void update_sample_display(VideoState *is, short *samples, int samples_size)
1983
{
1984
    int size, len, channels;
1985
1986 01f4895c Michael Niedermayer
    channels = is->audio_st->codec->channels;
1987 01310af2 Fabrice Bellard
1988
    size = samples_size / sizeof(short);
1989
    while (size > 0) {
1990
        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1991
        if (len > size)
1992
            len = size;
1993
        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1994
        samples += len;
1995
        is->sample_array_index += len;
1996
        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1997
            is->sample_array_index = 0;
1998
        size -= len;
1999
    }
2000
}
2001
2002
/* return the new audio buffer size (samples can be added or deleted
2003
   to get better sync if video or external master clock) */
2004 115329f1 Diego Biurrun
static int synchronize_audio(VideoState *is, short *samples,
2005 638c9d91 Fabrice Bellard
                             int samples_size1, double pts)
2006 01310af2 Fabrice Bellard
{
2007 638c9d91 Fabrice Bellard
    int n, samples_size;
2008 01310af2 Fabrice Bellard
    double ref_clock;
2009 115329f1 Diego Biurrun
2010 01f4895c Michael Niedermayer
    n = 2 * is->audio_st->codec->channels;
2011 638c9d91 Fabrice Bellard
    samples_size = samples_size1;
2012 01310af2 Fabrice Bellard
2013
    /* if not master, then we try to remove or add samples to correct the clock */
2014
    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2015 638c9d91 Fabrice Bellard
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2016
        double diff, avg_diff;
2017 01310af2 Fabrice Bellard
        int wanted_size, min_size, max_size, nb_samples;
2018 115329f1 Diego Biurrun
2019 638c9d91 Fabrice Bellard
        ref_clock = get_master_clock(is);
2020
        diff = get_audio_clock(is) - ref_clock;
2021 115329f1 Diego Biurrun
2022 638c9d91 Fabrice Bellard
        if (diff < AV_NOSYNC_THRESHOLD) {
2023
            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2024
            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2025
                /* not enough measures to have a correct estimate */
2026
                is->audio_diff_avg_count++;
2027
            } else {
2028
                /* estimate the A-V difference */
2029
                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2030
2031
                if (fabs(avg_diff) >= is->audio_diff_threshold) {
2032 01f4895c Michael Niedermayer
                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2033 638c9d91 Fabrice Bellard
                    nb_samples = samples_size / n;
2034 115329f1 Diego Biurrun
2035 638c9d91 Fabrice Bellard
                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2036
                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2037
                    if (wanted_size < min_size)
2038
                        wanted_size = min_size;
2039
                    else if (wanted_size > max_size)
2040
                        wanted_size = max_size;
2041 115329f1 Diego Biurrun
2042 638c9d91 Fabrice Bellard
                    /* add or remove samples to correction the synchro */
2043
                    if (wanted_size < samples_size) {
2044
                        /* remove samples */
2045
                        samples_size = wanted_size;
2046
                    } else if (wanted_size > samples_size) {
2047
                        uint8_t *samples_end, *q;
2048
                        int nb;
2049 115329f1 Diego Biurrun
2050 638c9d91 Fabrice Bellard
                        /* add samples */
2051
                        nb = (samples_size - wanted_size);
2052
                        samples_end = (uint8_t *)samples + samples_size - n;
2053
                        q = samples_end + n;
2054
                        while (nb > 0) {
2055
                            memcpy(q, samples_end, n);
2056
                            q += n;
2057
                            nb -= n;
2058
                        }
2059
                        samples_size = wanted_size;
2060
                    }
2061
                }
2062
#if 0
2063 115329f1 Diego Biurrun
                printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2064
                       diff, avg_diff, samples_size - samples_size1,
2065 638c9d91 Fabrice Bellard
                       is->audio_clock, is->video_clock, is->audio_diff_threshold);
2066
#endif
2067 01310af2 Fabrice Bellard
            }
2068 638c9d91 Fabrice Bellard
        } else {
2069
            /* too big difference : may be initial PTS errors, so
2070
               reset A-V filter */
2071
            is->audio_diff_avg_count = 0;
2072
            is->audio_diff_cum = 0;
2073 01310af2 Fabrice Bellard
        }
2074
    }
2075
2076
    return samples_size;
2077
}
2078
2079
/* decode one audio frame and returns its uncompressed size */
2080 5a4476e2 Peter Ross
static int audio_decode_frame(VideoState *is, double *pts_ptr)
2081 01310af2 Fabrice Bellard
{
2082 bea18375 Thilo Borgmann
    AVPacket *pkt_temp = &is->audio_pkt_temp;
2083 01310af2 Fabrice Bellard
    AVPacket *pkt = &is->audio_pkt;
2084 abdff646 Peter Ross
    AVCodecContext *dec= is->audio_st->codec;
2085 72ea344b Fabrice Bellard
    int n, len1, data_size;
2086 01310af2 Fabrice Bellard
    double pts;
2087
2088
    for(;;) {
2089 72ea344b Fabrice Bellard
        /* NOTE: the audio packet can contain several frames */
2090 bea18375 Thilo Borgmann
        while (pkt_temp->size > 0) {
2091 5a4476e2 Peter Ross
            data_size = sizeof(is->audio_buf1);
2092 bea18375 Thilo Borgmann
            len1 = avcodec_decode_audio3(dec,
2093 5a4476e2 Peter Ross
                                        (int16_t *)is->audio_buf1, &data_size,
2094 bea18375 Thilo Borgmann
                                        pkt_temp);
2095 72ea344b Fabrice Bellard
            if (len1 < 0) {
2096
                /* if error, we skip the frame */
2097 bea18375 Thilo Borgmann
                pkt_temp->size = 0;
2098 01310af2 Fabrice Bellard
                break;
2099 72ea344b Fabrice Bellard
            }
2100 115329f1 Diego Biurrun
2101 bea18375 Thilo Borgmann
            pkt_temp->data += len1;
2102
            pkt_temp->size -= len1;
2103 72ea344b Fabrice Bellard
            if (data_size <= 0)
2104
                continue;
2105 5a4476e2 Peter Ross
2106
            if (dec->sample_fmt != is->audio_src_fmt) {
2107
                if (is->reformat_ctx)
2108
                    av_audio_convert_free(is->reformat_ctx);
2109 5d6e4c16 Stefano Sabatini
                is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2110 5a4476e2 Peter Ross
                                                         dec->sample_fmt, 1, NULL, 0);
2111
                if (!is->reformat_ctx) {
2112
                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2113 ba7d6e79 Stefano Sabatini
                        av_get_sample_fmt_name(dec->sample_fmt),
2114 5d6e4c16 Stefano Sabatini
                        av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2115 5a4476e2 Peter Ross
                        break;
2116
                }
2117
                is->audio_src_fmt= dec->sample_fmt;
2118
            }
2119
2120
            if (is->reformat_ctx) {
2121
                const void *ibuf[6]= {is->audio_buf1};
2122
                void *obuf[6]= {is->audio_buf2};
2123 ba7d6e79 Stefano Sabatini
                int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2124 5a4476e2 Peter Ross
                int ostride[6]= {2};
2125
                int len= data_size/istride[0];
2126
                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2127
                    printf("av_audio_convert() failed\n");
2128
                    break;
2129
                }
2130
                is->audio_buf= is->audio_buf2;
2131
                /* FIXME: existing code assume that data_size equals framesize*channels*2
2132
                          remove this legacy cruft */
2133
                data_size= len*2;
2134
            }else{
2135
                is->audio_buf= is->audio_buf1;
2136
            }
2137
2138 72ea344b Fabrice Bellard
            /* if no pts, then compute it */
2139
            pts = is->audio_clock;
2140
            *pts_ptr = pts;
2141 abdff646 Peter Ross
            n = 2 * dec->channels;
2142 115329f1 Diego Biurrun
            is->audio_clock += (double)data_size /
2143 abdff646 Peter Ross
                (double)(n * dec->sample_rate);
2144 638c9d91 Fabrice Bellard
#if defined(DEBUG_SYNC)
2145 72ea344b Fabrice Bellard
            {
2146
                static double last_clock;
2147
                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2148
                       is->audio_clock - last_clock,
2149
                       is->audio_clock, pts);
2150
                last_clock = is->audio_clock;
2151 01310af2 Fabrice Bellard
            }
2152 72ea344b Fabrice Bellard
#endif
2153
            return data_size;
2154 01310af2 Fabrice Bellard
        }
2155
2156 72ea344b Fabrice Bellard
        /* free the current packet */
2157
        if (pkt->data)
2158 01310af2 Fabrice Bellard
            av_free_packet(pkt);
2159 115329f1 Diego Biurrun
2160 72ea344b Fabrice Bellard
        if (is->paused || is->audioq.abort_request) {
2161
            return -1;
2162
        }
2163 115329f1 Diego Biurrun
2164 01310af2 Fabrice Bellard
        /* read next packet */
2165
        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2166
            return -1;
2167 39c6a118 Michael Niedermayer
        if(pkt->data == flush_pkt.data){
2168 abdff646 Peter Ross
            avcodec_flush_buffers(dec);
2169 39c6a118 Michael Niedermayer
            continue;
2170
        }
2171
2172 bea18375 Thilo Borgmann
        pkt_temp->data = pkt->data;
2173
        pkt_temp->size = pkt->size;
2174 115329f1 Diego Biurrun
2175 72ea344b Fabrice Bellard
        /* if update the audio clock with the pts */
2176
        if (pkt->pts != AV_NOPTS_VALUE) {
2177 c0df9d75 Michael Niedermayer
            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2178 72ea344b Fabrice Bellard
        }
2179 01310af2 Fabrice Bellard
    }
2180
}
2181
2182 638c9d91 Fabrice Bellard
/* get the current audio output buffer size, in samples. With SDL, we
2183
   cannot have a precise information */
2184
static int audio_write_get_buf_size(VideoState *is)
2185 01310af2 Fabrice Bellard
{
2186 b09b580b Ryan Martell
    return is->audio_buf_size - is->audio_buf_index;
2187 01310af2 Fabrice Bellard
}
2188
2189
2190
/* prepare a new audio buffer */
2191 358061f6 Diego Pettenò
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2192 01310af2 Fabrice Bellard
{
2193
    VideoState *is = opaque;
2194
    int audio_size, len1;
2195
    double pts;
2196
2197
    audio_callback_time = av_gettime();
2198 115329f1 Diego Biurrun
2199 01310af2 Fabrice Bellard
    while (len > 0) {
2200
        if (is->audio_buf_index >= is->audio_buf_size) {
2201 5a4476e2 Peter Ross
           audio_size = audio_decode_frame(is, &pts);
2202 01310af2 Fabrice Bellard
           if (audio_size < 0) {
2203
                /* if error, just output silence */
2204 1a1078fa Baptiste Coudurier
               is->audio_buf = is->audio_buf1;
2205 01310af2 Fabrice Bellard
               is->audio_buf_size = 1024;
2206
               memset(is->audio_buf, 0, is->audio_buf_size);
2207
           } else {
2208
               if (is->show_audio)
2209
                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2210 115329f1 Diego Biurrun
               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2211 01310af2 Fabrice Bellard
                                              pts);
2212
               is->audio_buf_size = audio_size;
2213
           }
2214
           is->audio_buf_index = 0;
2215
        }
2216
        len1 = is->audio_buf_size - is->audio_buf_index;
2217
        if (len1 > len)
2218
            len1 = len;
2219
        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2220
        len -= len1;
2221
        stream += len1;
2222
        is->audio_buf_index += len1;
2223
    }
2224
}
2225
2226
/* open a given stream. Return 0 if OK */
2227
static int stream_component_open(VideoState *is, int stream_index)
2228
{
2229
    AVFormatContext *ic = is->ic;
2230 fe74099a Stefano Sabatini
    AVCodecContext *avctx;
2231 01310af2 Fabrice Bellard
    AVCodec *codec;
2232
    SDL_AudioSpec wanted_spec, spec;
2233
2234
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2235
        return -1;
2236 fe74099a Stefano Sabatini
    avctx = ic->streams[stream_index]->codec;
2237 115329f1 Diego Biurrun
2238 01310af2 Fabrice Bellard
    /* prepare audio output */
2239 72415b2a Stefano Sabatini
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2240 fe74099a Stefano Sabatini
        if (avctx->channels > 0) {
2241
            avctx->request_channels = FFMIN(2, avctx->channels);
2242 94eadc8b Andreas Öman
        } else {
2243 fe74099a Stefano Sabatini
            avctx->request_channels = 2;
2244 638c9d91 Fabrice Bellard
        }
2245 01310af2 Fabrice Bellard
    }
2246
2247 fe74099a Stefano Sabatini
    codec = avcodec_find_decoder(avctx->codec_id);
2248
    avctx->debug_mv = debug_mv;
2249
    avctx->debug = debug;
2250
    avctx->workaround_bugs = workaround_bugs;
2251
    avctx->lowres = lowres;
2252
    if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2253
    avctx->idct_algo= idct;
2254
    if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2255
    avctx->skip_frame= skip_frame;
2256
    avctx->skip_idct= skip_idct;
2257
    avctx->skip_loop_filter= skip_loop_filter;
2258
    avctx->error_recognition= error_recognition;
2259
    avctx->error_concealment= error_concealment;
2260 043d2ff2 Alexander Strange
    avctx->thread_count= thread_count;
2261 fe74099a Stefano Sabatini
2262 0093ebc2 Michael Niedermayer
    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2263 e43d7a18 Michael Niedermayer
2264 01310af2 Fabrice Bellard
    if (!codec ||
2265 fe74099a Stefano Sabatini
        avcodec_open(avctx, codec) < 0)
2266 01310af2 Fabrice Bellard
        return -1;
2267 51b73087 Justin Ruggles
2268
    /* prepare audio output */
2269 72415b2a Stefano Sabatini
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2270 fe74099a Stefano Sabatini
        wanted_spec.freq = avctx->sample_rate;
2271 51b73087 Justin Ruggles
        wanted_spec.format = AUDIO_S16SYS;
2272 fe74099a Stefano Sabatini
        wanted_spec.channels = avctx->channels;
2273 51b73087 Justin Ruggles
        wanted_spec.silence = 0;
2274
        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2275
        wanted_spec.callback = sdl_audio_callback;
2276
        wanted_spec.userdata = is;
2277
        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2278
            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2279
            return -1;
2280
        }
2281
        is->audio_hw_buf_size = spec.size;
2282 5d6e4c16 Stefano Sabatini
        is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2283 51b73087 Justin Ruggles
    }
2284
2285 3f3fe38d Ronald S. Bultje
    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2286 fe74099a Stefano Sabatini
    switch(avctx->codec_type) {
2287 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_AUDIO:
2288 01310af2 Fabrice Bellard
        is->audio_stream = stream_index;
2289
        is->audio_st = ic->streams[stream_index];
2290
        is->audio_buf_size = 0;
2291
        is->audio_buf_index = 0;
2292 638c9d91 Fabrice Bellard
2293
        /* init averaging filter */
2294
        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2295
        is->audio_diff_avg_count = 0;
2296
        /* since we do not have a precise anough audio fifo fullness,
2297
           we correct audio sync only if larger than this threshold */
2298 fe74099a Stefano Sabatini
        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2299 638c9d91 Fabrice Bellard
2300 01310af2 Fabrice Bellard
        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2301
        packet_queue_init(&is->audioq);
2302 bb270c08 Diego Biurrun
        SDL_PauseAudio(0);
2303 01310af2 Fabrice Bellard
        break;
2304 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_VIDEO:
2305 01310af2 Fabrice Bellard
        is->video_stream = stream_index;
2306
        is->video_st = ic->streams[stream_index];
2307
2308 68aefbe8 Michael Niedermayer
//        is->video_current_pts_time = av_gettime();
2309 638c9d91 Fabrice Bellard
2310 01310af2 Fabrice Bellard
        packet_queue_init(&is->videoq);
2311
        is->video_tid = SDL_CreateThread(video_thread, is);
2312
        break;
2313 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_SUBTITLE:
2314 72ce053b Ian Caulfield
        is->subtitle_stream = stream_index;
2315
        is->subtitle_st = ic->streams[stream_index];
2316
        packet_queue_init(&is->subtitleq);
2317 115329f1 Diego Biurrun
2318 72ce053b Ian Caulfield
        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2319
        break;
2320 01310af2 Fabrice Bellard
    default:
2321
        break;
2322
    }
2323
    return 0;
2324
}
2325
2326
static void stream_component_close(VideoState *is, int stream_index)
2327
{
2328
    AVFormatContext *ic = is->ic;
2329 fe74099a Stefano Sabatini
    AVCodecContext *avctx;
2330 115329f1 Diego Biurrun
2331 72ce053b Ian Caulfield
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2332
        return;
2333 fe74099a Stefano Sabatini
    avctx = ic->streams[stream_index]->codec;
2334 01310af2 Fabrice Bellard
2335 fe74099a Stefano Sabatini
    switch(avctx->codec_type) {
2336 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_AUDIO:
2337 01310af2 Fabrice Bellard
        packet_queue_abort(&is->audioq);
2338
2339
        SDL_CloseAudio();
2340
2341
        packet_queue_end(&is->audioq);
2342 5a4476e2 Peter Ross
        if (is->reformat_ctx)
2343
            av_audio_convert_free(is->reformat_ctx);
2344 bc77fce6 Ramiro Polla
        is->reformat_ctx = NULL;
2345 01310af2 Fabrice Bellard
        break;
2346 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_VIDEO:
2347 01310af2 Fabrice Bellard
        packet_queue_abort(&is->videoq);
2348
2349
        /* note: we also signal this mutex to make sure we deblock the
2350
           video thread in all cases */
2351
        SDL_LockMutex(is->pictq_mutex);
2352
        SDL_CondSignal(is->pictq_cond);
2353
        SDL_UnlockMutex(is->pictq_mutex);
2354
2355
        SDL_WaitThread(is->video_tid, NULL);
2356
2357
        packet_queue_end(&is->videoq);
2358
        break;
2359 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_SUBTITLE:
2360 72ce053b Ian Caulfield
        packet_queue_abort(&is->subtitleq);
2361 115329f1 Diego Biurrun
2362 72ce053b Ian Caulfield
        /* note: we also signal this mutex to make sure we deblock the
2363
           video thread in all cases */
2364
        SDL_LockMutex(is->subpq_mutex);
2365
        is->subtitle_stream_changed = 1;
2366 115329f1 Diego Biurrun
2367 72ce053b Ian Caulfield
        SDL_CondSignal(is->subpq_cond);
2368
        SDL_UnlockMutex(is->subpq_mutex);
2369
2370
        SDL_WaitThread(is->subtitle_tid, NULL);
2371
2372
        packet_queue_end(&is->subtitleq);
2373
        break;
2374 01310af2 Fabrice Bellard
    default:
2375
        break;
2376
    }
2377
2378 3f3fe38d Ronald S. Bultje
    ic->streams[stream_index]->discard = AVDISCARD_ALL;
2379 fe74099a Stefano Sabatini
    avcodec_close(avctx);
2380
    switch(avctx->codec_type) {
2381 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_AUDIO:
2382 01310af2 Fabrice Bellard
        is->audio_st = NULL;
2383
        is->audio_stream = -1;
2384
        break;
2385 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_VIDEO:
2386 01310af2 Fabrice Bellard
        is->video_st = NULL;
2387
        is->video_stream = -1;
2388
        break;
2389 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_SUBTITLE:
2390 72ce053b Ian Caulfield
        is->subtitle_st = NULL;
2391
        is->subtitle_stream = -1;
2392
        break;
2393 01310af2 Fabrice Bellard
    default:
2394
        break;
2395
    }
2396
}
2397
2398 416e3508 Fabrice Bellard
/* since we have only one decoding thread, we can use a global
2399
   variable instead of a thread local variable */
2400
static VideoState *global_video_state;
2401
2402
static int decode_interrupt_cb(void)
2403
{
2404
    return (global_video_state && global_video_state->abort_request);
2405
}
2406 01310af2 Fabrice Bellard
2407
/* this thread gets the stream from the disk or the network */
2408
static int decode_thread(void *arg)
2409
{
2410
    VideoState *is = arg;
2411
    AVFormatContext *ic;
2412 6625a3de Michael Niedermayer
    int err, i, ret;
2413 72415b2a Stefano Sabatini
    int st_index[AVMEDIA_TYPE_NB];
2414 01310af2 Fabrice Bellard
    AVPacket pkt1, *pkt = &pkt1;
2415 61890b02 Fabrice Bellard
    AVFormatParameters params, *ap = &params;
2416 75bb7b0a Michael Niedermayer
    int eof=0;
2417 d834d63b Robert Krüger
    int pkt_in_play_range = 0;
2418 01310af2 Fabrice Bellard
2419 6299a229 Michael Niedermayer
    ic = avformat_alloc_context();
2420
2421 6625a3de Michael Niedermayer
    memset(st_index, -1, sizeof(st_index));
2422 01310af2 Fabrice Bellard
    is->video_stream = -1;
2423
    is->audio_stream = -1;
2424 72ce053b Ian Caulfield
    is->subtitle_stream = -1;
2425 01310af2 Fabrice Bellard
2426 416e3508 Fabrice Bellard
    global_video_state = is;
2427
    url_set_interrupt_cb(decode_interrupt_cb);
2428
2429 61890b02 Fabrice Bellard
    memset(ap, 0, sizeof(*ap));
2430 115329f1 Diego Biurrun
2431 6299a229 Michael Niedermayer
    ap->prealloced_context = 1;
2432 e4b89522 Limin Wang
    ap->width = frame_width;
2433
    ap->height= frame_height;
2434 7e042912 Michael Niedermayer
    ap->time_base= (AVRational){1, 25};
2435 e4b89522 Limin Wang
    ap->pix_fmt = frame_pix_fmt;
2436 7e042912 Michael Niedermayer
2437 0093ebc2 Michael Niedermayer
    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2438 6299a229 Michael Niedermayer
2439 61890b02 Fabrice Bellard
    err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2440 638c9d91 Fabrice Bellard
    if (err < 0) {
2441
        print_error(is->filename, err);
2442
        ret = -1;
2443
        goto fail;
2444
    }
2445 01310af2 Fabrice Bellard
    is->ic = ic;
2446 30bc6613 Michael Niedermayer
2447
    if(genpts)
2448
        ic->flags |= AVFMT_FLAG_GENPTS;
2449
2450 24c07998 Luca Abeni
    err = av_find_stream_info(ic);
2451
    if (err < 0) {
2452
        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2453
        ret = -1;
2454
        goto fail;
2455
    }
2456 899681cd Björn Axelsson
    if(ic->pb)
2457
        ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2458 72ea344b Fabrice Bellard
2459 70a4764d Michael Niedermayer
    if(seek_by_bytes<0)
2460
        seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2461
2462 72ea344b Fabrice Bellard
    /* if seeking requested, we execute it */
2463
    if (start_time != AV_NOPTS_VALUE) {
2464
        int64_t timestamp;
2465
2466
        timestamp = start_time;
2467
        /* add the stream start time */
2468
        if (ic->start_time != AV_NOPTS_VALUE)
2469
            timestamp += ic->start_time;
2470 4ed29207 Michael Niedermayer
        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2471 72ea344b Fabrice Bellard
        if (ret < 0) {
2472 115329f1 Diego Biurrun
            fprintf(stderr, "%s: could not seek to position %0.3f\n",
2473 72ea344b Fabrice Bellard
                    is->filename, (double)timestamp / AV_TIME_BASE);
2474
        }
2475
    }
2476
2477 406f0f1b Nicolas George
    for (i = 0; i < ic->nb_streams; i++)
2478 3f3fe38d Ronald S. Bultje
        ic->streams[i]->discard = AVDISCARD_ALL;
2479 be732b70 Nicolas George
    if (!video_disable)
2480 406f0f1b Nicolas George
        st_index[AVMEDIA_TYPE_VIDEO] =
2481
            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2482
                                wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2483 be732b70 Nicolas George
    if (!audio_disable)
2484 406f0f1b Nicolas George
        st_index[AVMEDIA_TYPE_AUDIO] =
2485
            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2486
                                wanted_stream[AVMEDIA_TYPE_AUDIO],
2487
                                st_index[AVMEDIA_TYPE_VIDEO],
2488
                                NULL, 0);
2489 be732b70 Nicolas George
    if (!video_disable)
2490 406f0f1b Nicolas George
        st_index[AVMEDIA_TYPE_SUBTITLE] =
2491
            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2492
                                wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2493
                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2494
                                 st_index[AVMEDIA_TYPE_AUDIO] :
2495
                                 st_index[AVMEDIA_TYPE_VIDEO]),
2496
                                NULL, 0);
2497 01310af2 Fabrice Bellard
    if (show_status) {
2498
        dump_format(ic, 0, is->filename, 0);
2499
    }
2500
2501
    /* open the streams */
2502 72415b2a Stefano Sabatini
    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2503
        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2504 01310af2 Fabrice Bellard
    }
2505
2506 077a8d61 Michael Niedermayer
    ret=-1;
2507 72415b2a Stefano Sabatini
    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2508
        ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2509 077a8d61 Michael Niedermayer
    }
2510 d38c9e7a Michael Niedermayer
    is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2511 077a8d61 Michael Niedermayer
    if(ret<0) {
2512 01310af2 Fabrice Bellard
        if (!display_disable)
2513 bf8ae197 Michael Niedermayer
            is->show_audio = 2;
2514 01310af2 Fabrice Bellard
    }
2515
2516 72415b2a Stefano Sabatini
    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2517
        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2518 16a59a7b Björn Axelsson
    }
2519
2520 01310af2 Fabrice Bellard
    if (is->video_stream < 0 && is->audio_stream < 0) {
2521 638c9d91 Fabrice Bellard
        fprintf(stderr, "%s: could not open codecs\n", is->filename);
2522
        ret = -1;
2523 01310af2 Fabrice Bellard
        goto fail;
2524
    }
2525
2526
    for(;;) {
2527
        if (is->abort_request)
2528
            break;
2529 416e3508 Fabrice Bellard
        if (is->paused != is->last_paused) {
2530
            is->last_paused = is->paused;
2531 72ea344b Fabrice Bellard
            if (is->paused)
2532 f5668147 Michael Niedermayer
                is->read_pause_return= av_read_pause(ic);
2533 72ea344b Fabrice Bellard
            else
2534
                av_read_play(ic);
2535 416e3508 Fabrice Bellard
        }
2536 2f642393 Aurelien Jacobs
#if CONFIG_RTSP_DEMUXER
2537
        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2538 416e3508 Fabrice Bellard
            /* wait 10 ms to avoid trying to get another packet */
2539
            /* XXX: horrible */
2540
            SDL_Delay(10);
2541
            continue;
2542
        }
2543 400738b1 Michael Niedermayer
#endif
2544 72ea344b Fabrice Bellard
        if (is->seek_req) {
2545 8e606cc8 Michael Niedermayer
            int64_t seek_target= is->seek_pos;
2546 4ed29207 Michael Niedermayer
            int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2547
            int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2548
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
2549
//      of the seek_pos/seek_rel variables
2550 8e606cc8 Michael Niedermayer
2551 4ed29207 Michael Niedermayer
            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2552 72ea344b Fabrice Bellard
            if (ret < 0) {
2553
                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2554 e6c0297f Michael Niedermayer
            }else{
2555
                if (is->audio_stream >= 0) {
2556
                    packet_queue_flush(&is->audioq);
2557 39c6a118 Michael Niedermayer
                    packet_queue_put(&is->audioq, &flush_pkt);
2558 e6c0297f Michael Niedermayer
                }
2559 72ce053b Ian Caulfield
                if (is->subtitle_stream >= 0) {
2560
                    packet_queue_flush(&is->subtitleq);
2561 39c6a118 Michael Niedermayer
                    packet_queue_put(&is->subtitleq, &flush_pkt);
2562 72ce053b Ian Caulfield
                }
2563 e6c0297f Michael Niedermayer
                if (is->video_stream >= 0) {
2564
                    packet_queue_flush(&is->videoq);
2565 39c6a118 Michael Niedermayer
                    packet_queue_put(&is->videoq, &flush_pkt);
2566 e6c0297f Michael Niedermayer
                }
2567 72ea344b Fabrice Bellard
            }
2568
            is->seek_req = 0;
2569 e45aeb38 Michael Niedermayer
            eof= 0;
2570 72ea344b Fabrice Bellard
        }
2571 416e3508 Fabrice Bellard
2572 01310af2 Fabrice Bellard
        /* if the queue are full, no need to read more */
2573 79ee4683 Michael Niedermayer
        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2574
            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2575
                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2576
                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2577 01310af2 Fabrice Bellard
            /* wait 10 ms */
2578
            SDL_Delay(10);
2579
            continue;
2580
        }
2581 27d97fde Michael Chinen
        if(eof) {
2582 9dc41767 Michael Niedermayer
            if(is->video_stream >= 0){
2583 26534fe8 Michael Niedermayer
                av_init_packet(pkt);
2584
                pkt->data=NULL;
2585
                pkt->size=0;
2586
                pkt->stream_index= is->video_stream;
2587
                packet_queue_put(&is->videoq, pkt);
2588 9dc41767 Michael Niedermayer
            }
2589 b4083171 Michael Niedermayer
            SDL_Delay(10);
2590 1922c0a7 Robert Krüger
            if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2591
                if(loop!=1 && (!loop || --loop)){
2592
                    stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2593
                }else if(autoexit){
2594
                    ret=AVERROR_EOF;
2595
                    goto fail;
2596
                }
2597 2d1653b0 Michael Niedermayer
            }
2598 600a331c Michael Niedermayer
            continue;
2599
        }
2600 72ea344b Fabrice Bellard
        ret = av_read_frame(ic, pkt);
2601 01310af2 Fabrice Bellard
        if (ret < 0) {
2602 27d97fde Michael Chinen
            if (ret == AVERROR_EOF || url_feof(ic->pb))
2603 75bb7b0a Michael Niedermayer
                eof=1;
2604
            if (url_ferror(ic->pb))
2605 bb270c08 Diego Biurrun
                break;
2606 75bb7b0a Michael Niedermayer
            SDL_Delay(100); /* wait for user event */
2607
            continue;
2608 01310af2 Fabrice Bellard
        }
2609 d834d63b Robert Krüger
        /* check if packet is in play range specified by user, then queue, otherwise discard */
2610
        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2611
                (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2612
                av_q2d(ic->streams[pkt->stream_index]->time_base) -
2613
                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2614
                <= ((double)duration/1000000);
2615
        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2616 01310af2 Fabrice Bellard
            packet_queue_put(&is->audioq, pkt);
2617 d834d63b Robert Krüger
        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2618 01310af2 Fabrice Bellard
            packet_queue_put(&is->videoq, pkt);
2619 d834d63b Robert Krüger
        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2620 72ce053b Ian Caulfield
            packet_queue_put(&is->subtitleq, pkt);
2621 01310af2 Fabrice Bellard
        } else {
2622
            av_free_packet(pkt);
2623
        }
2624
    }
2625
    /* wait until the end */
2626
    while (!is->abort_request) {
2627
        SDL_Delay(100);
2628
    }
2629
2630 638c9d91 Fabrice Bellard
    ret = 0;
2631 01310af2 Fabrice Bellard
 fail:
2632 416e3508 Fabrice Bellard
    /* disable interrupting */
2633
    global_video_state = NULL;
2634
2635 01310af2 Fabrice Bellard
    /* close each stream */
2636
    if (is->audio_stream >= 0)
2637
        stream_component_close(is, is->audio_stream);
2638
    if (is->video_stream >= 0)
2639
        stream_component_close(is, is->video_stream);
2640 72ce053b Ian Caulfield
    if (is->subtitle_stream >= 0)
2641
        stream_component_close(is, is->subtitle_stream);
2642 638c9d91 Fabrice Bellard
    if (is->ic) {
2643
        av_close_input_file(is->ic);
2644
        is->ic = NULL; /* safety */
2645
    }
2646 416e3508 Fabrice Bellard
    url_set_interrupt_cb(NULL);
2647
2648 638c9d91 Fabrice Bellard
    if (ret != 0) {
2649
        SDL_Event event;
2650 115329f1 Diego Biurrun
2651 638c9d91 Fabrice Bellard
        event.type = FF_QUIT_EVENT;
2652
        event.user.data1 = is;
2653
        SDL_PushEvent(&event);
2654
    }
2655 01310af2 Fabrice Bellard
    return 0;
2656
}
2657
2658 638c9d91 Fabrice Bellard
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2659 01310af2 Fabrice Bellard
{
2660
    VideoState *is;
2661
2662
    is = av_mallocz(sizeof(VideoState));
2663
    if (!is)
2664
        return NULL;
2665 f7d78f36 Måns Rullgård
    av_strlcpy(is->filename, filename, sizeof(is->filename));
2666 638c9d91 Fabrice Bellard
    is->iformat = iformat;
2667 01310af2 Fabrice Bellard
    is->ytop = 0;
2668
    is->xleft = 0;
2669
2670
    /* start video display */
2671
    is->pictq_mutex = SDL_CreateMutex();
2672
    is->pictq_cond = SDL_CreateCond();
2673 115329f1 Diego Biurrun
2674 72ce053b Ian Caulfield
    is->subpq_mutex = SDL_CreateMutex();
2675
    is->subpq_cond = SDL_CreateCond();
2676 115329f1 Diego Biurrun
2677 638c9d91 Fabrice Bellard
    is->av_sync_type = av_sync_type;
2678 01310af2 Fabrice Bellard
    is->parse_tid = SDL_CreateThread(decode_thread, is);
2679
    if (!is->parse_tid) {
2680
        av_free(is);
2681
        return NULL;
2682
    }
2683
    return is;
2684
}
2685
2686 7b49ce2e Stefan Huehner
static void stream_cycle_channel(VideoState *is, int codec_type)
2687 638c9d91 Fabrice Bellard
{
2688
    AVFormatContext *ic = is->ic;
2689
    int start_index, stream_index;
2690
    AVStream *st;
2691
2692 72415b2a Stefano Sabatini
    if (codec_type == AVMEDIA_TYPE_VIDEO)
2693 638c9d91 Fabrice Bellard
        start_index = is->video_stream;
2694 72415b2a Stefano Sabatini
    else if (codec_type == AVMEDIA_TYPE_AUDIO)
2695 638c9d91 Fabrice Bellard
        start_index = is->audio_stream;
2696 72ce053b Ian Caulfield
    else
2697
        start_index = is->subtitle_stream;
2698 72415b2a Stefano Sabatini
    if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2699 638c9d91 Fabrice Bellard
        return;
2700
    stream_index = start_index;
2701
    for(;;) {
2702
        if (++stream_index >= is->ic->nb_streams)
2703 72ce053b Ian Caulfield
        {
2704 72415b2a Stefano Sabatini
            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2705 72ce053b Ian Caulfield
            {
2706
                stream_index = -1;
2707
                goto the_end;
2708
            } else
2709
                stream_index = 0;
2710
        }
2711 638c9d91 Fabrice Bellard
        if (stream_index == start_index)
2712
            return;
2713
        st = ic->streams[stream_index];
2714 01f4895c Michael Niedermayer
        if (st->codec->codec_type == codec_type) {
2715 638c9d91 Fabrice Bellard
            /* check that parameters are OK */
2716
            switch(codec_type) {
2717 72415b2a Stefano Sabatini
            case AVMEDIA_TYPE_AUDIO:
2718 01f4895c Michael Niedermayer
                if (st->codec->sample_rate != 0 &&
2719
                    st->codec->channels != 0)
2720 638c9d91 Fabrice Bellard
                    goto the_end;
2721
                break;
2722 72415b2a Stefano Sabatini
            case AVMEDIA_TYPE_VIDEO:
2723
            case AVMEDIA_TYPE_SUBTITLE:
2724 638c9d91 Fabrice Bellard
                goto the_end;
2725
            default:
2726
                break;
2727
            }
2728
        }
2729
    }
2730
 the_end:
2731
    stream_component_close(is, start_index);
2732
    stream_component_open(is, stream_index);
2733
}
2734
2735
2736 7b49ce2e Stefan Huehner
static void toggle_full_screen(void)
2737 01310af2 Fabrice Bellard
{
2738
    is_full_screen = !is_full_screen;
2739 29f3b38a Måns Rullgård
    if (!fs_screen_width) {
2740
        /* use default SDL method */
2741 fb84155b Michael Niedermayer
//        SDL_WM_ToggleFullScreen(screen);
2742 01310af2 Fabrice Bellard
    }
2743 fb84155b Michael Niedermayer
    video_open(cur_stream);
2744 01310af2 Fabrice Bellard
}
2745
2746 7b49ce2e Stefan Huehner
static void toggle_pause(void)
2747 01310af2 Fabrice Bellard
{
2748
    if (cur_stream)
2749
        stream_pause(cur_stream);
2750 bba04f1e Wolfgang Hesseler
    step = 0;
2751
}
2752
2753 7b49ce2e Stefan Huehner
static void step_to_next_frame(void)
2754 bba04f1e Wolfgang Hesseler
{
2755
    if (cur_stream) {
2756 19cc524a Craig Nicol
        /* if the stream is paused unpause it, then step */
2757 bba04f1e Wolfgang Hesseler
        if (cur_stream->paused)
2758 19cc524a Craig Nicol
            stream_pause(cur_stream);
2759 bba04f1e Wolfgang Hesseler
    }
2760
    step = 1;
2761 01310af2 Fabrice Bellard
}
2762
2763 7b49ce2e Stefan Huehner
static void toggle_audio_display(void)
2764 01310af2 Fabrice Bellard
{
2765
    if (cur_stream) {
2766 f5968788 Michael Niedermayer
        int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2767 12eeda34 Michael Niedermayer
        cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2768 f5968788 Michael Niedermayer
        fill_rectangle(screen,
2769
                    cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2770
                    bgcolor);
2771
        SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2772 01310af2 Fabrice Bellard
    }
2773
}
2774
2775
/* handle an event sent by the GUI */
2776 7b49ce2e Stefan Huehner
static void event_loop(void)
2777 01310af2 Fabrice Bellard
{
2778
    SDL_Event event;
2779 a11d11aa Michel Bardiaux
    double incr, pos, frac;
2780 01310af2 Fabrice Bellard
2781
    for(;;) {
2782 d52ec002 Michael Niedermayer
        double x;
2783 01310af2 Fabrice Bellard
        SDL_WaitEvent(&event);
2784
        switch(event.type) {
2785
        case SDL_KEYDOWN:
2786 066ce8c9 Alexei Svitkine
            if (exit_on_keydown) {
2787
                do_exit();
2788
                break;
2789
            }
2790 01310af2 Fabrice Bellard
            switch(event.key.keysym.sym) {
2791
            case SDLK_ESCAPE:
2792
            case SDLK_q:
2793
                do_exit();
2794
                break;
2795
            case SDLK_f:
2796
                toggle_full_screen();
2797
                break;
2798
            case SDLK_p:
2799
            case SDLK_SPACE:
2800
                toggle_pause();
2801
                break;
2802 bba04f1e Wolfgang Hesseler
            case SDLK_s: //S: Step to next frame
2803
                step_to_next_frame();
2804
                break;
2805 01310af2 Fabrice Bellard
            case SDLK_a:
2806 115329f1 Diego Biurrun
                if (cur_stream)
2807 72415b2a Stefano Sabatini
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2808 638c9d91 Fabrice Bellard
                break;
2809
            case SDLK_v:
2810 115329f1 Diego Biurrun
                if (cur_stream)
2811 72415b2a Stefano Sabatini
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2812 638c9d91 Fabrice Bellard
                break;
2813 72ce053b Ian Caulfield
            case SDLK_t:
2814 115329f1 Diego Biurrun
                if (cur_stream)
2815 72415b2a Stefano Sabatini
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2816 72ce053b Ian Caulfield
                break;
2817 638c9d91 Fabrice Bellard
            case SDLK_w:
2818 01310af2 Fabrice Bellard
                toggle_audio_display();
2819
                break;
2820 72ea344b Fabrice Bellard
            case SDLK_LEFT:
2821
                incr = -10.0;
2822
                goto do_seek;
2823
            case SDLK_RIGHT:
2824
                incr = 10.0;