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ffmpeg / ffplay.c @ 5d6e4c16

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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"
36
#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"
47
48
#include <SDL.h>
49
#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 638c9d91 Fabrice Bellard
//#define DEBUG_SYNC
62
63 79ee4683 Michael Niedermayer
#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
64
#define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
65
#define MIN_FRAMES 5
66 01310af2 Fabrice Bellard
67 638c9d91 Fabrice Bellard
/* SDL audio buffer size, in samples. Should be small to have precise
68
   A/V sync as SDL does not have hardware buffer fullness info. */
69
#define SDL_AUDIO_BUFFER_SIZE 1024
70
71
/* no AV sync correction is done if below the AV sync threshold */
72 7e0140cb Michael Niedermayer
#define AV_SYNC_THRESHOLD 0.01
73 638c9d91 Fabrice Bellard
/* no AV correction is done if too big error */
74
#define AV_NOSYNC_THRESHOLD 10.0
75
76 d38c9e7a Michael Niedermayer
#define FRAME_SKIP_FACTOR 0.05
77
78 638c9d91 Fabrice Bellard
/* maximum audio speed change to get correct sync */
79
#define SAMPLE_CORRECTION_PERCENT_MAX 10
80
81
/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
82
#define AUDIO_DIFF_AVG_NB   20
83
84 01310af2 Fabrice Bellard
/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
85
#define SAMPLE_ARRAY_SIZE (2*65536)
86
87 03ae87a3 Luca Abeni
static int sws_flags = SWS_BICUBIC;
88
89 01310af2 Fabrice Bellard
typedef struct PacketQueue {
90
    AVPacketList *first_pkt, *last_pkt;
91
    int nb_packets;
92
    int size;
93
    int abort_request;
94
    SDL_mutex *mutex;
95
    SDL_cond *cond;
96
} PacketQueue;
97
98 562f382c Michael Niedermayer
#define VIDEO_PICTURE_QUEUE_SIZE 2
99 72ce053b Ian Caulfield
#define SUBPICTURE_QUEUE_SIZE 4
100 01310af2 Fabrice Bellard
101
typedef struct VideoPicture {
102 267e9dfa Michael Niedermayer
    double pts;                                  ///<presentation time stamp for this picture
103 d38c9e7a Michael Niedermayer
    double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
104 1a620dd7 Michael Niedermayer
    int64_t pos;                                 ///<byte position in file
105 01310af2 Fabrice Bellard
    SDL_Overlay *bmp;
106
    int width, height; /* source height & width */
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    int allocated;
108 917d2bb3 Michael Niedermayer
    enum PixelFormat pix_fmt;
109
110
#if CONFIG_AVFILTER
111 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef *picref;
112 917d2bb3 Michael Niedermayer
#endif
113 01310af2 Fabrice Bellard
} VideoPicture;
114
115 72ce053b Ian Caulfield
typedef struct SubPicture {
116
    double pts; /* presentation time stamp for this picture */
117
    AVSubtitle sub;
118
} SubPicture;
119
120 01310af2 Fabrice Bellard
enum {
121
    AV_SYNC_AUDIO_MASTER, /* default choice */
122
    AV_SYNC_VIDEO_MASTER,
123 638c9d91 Fabrice Bellard
    AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
124 01310af2 Fabrice Bellard
};
125
126
typedef struct VideoState {
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    SDL_Thread *parse_tid;
128
    SDL_Thread *video_tid;
129 d38c9e7a Michael Niedermayer
    SDL_Thread *refresh_tid;
130 638c9d91 Fabrice Bellard
    AVInputFormat *iformat;
131 01310af2 Fabrice Bellard
    int no_background;
132
    int abort_request;
133
    int paused;
134 416e3508 Fabrice Bellard
    int last_paused;
135 72ea344b Fabrice Bellard
    int seek_req;
136 3ba1438d Michael Niedermayer
    int seek_flags;
137 72ea344b Fabrice Bellard
    int64_t seek_pos;
138 4ed29207 Michael Niedermayer
    int64_t seek_rel;
139 f5668147 Michael Niedermayer
    int read_pause_return;
140 01310af2 Fabrice Bellard
    AVFormatContext *ic;
141
    int dtg_active_format;
142
143
    int audio_stream;
144 115329f1 Diego Biurrun
145 01310af2 Fabrice Bellard
    int av_sync_type;
146 638c9d91 Fabrice Bellard
    double external_clock; /* external clock base */
147
    int64_t external_clock_time;
148 115329f1 Diego Biurrun
149 638c9d91 Fabrice Bellard
    double audio_clock;
150
    double audio_diff_cum; /* used for AV difference average computation */
151
    double audio_diff_avg_coef;
152
    double audio_diff_threshold;
153
    int audio_diff_avg_count;
154 01310af2 Fabrice Bellard
    AVStream *audio_st;
155
    PacketQueue audioq;
156
    int audio_hw_buf_size;
157
    /* samples output by the codec. we reserve more space for avsync
158
       compensation */
159 c6727809 Måns Rullgård
    DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
160
    DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
161 5a4476e2 Peter Ross
    uint8_t *audio_buf;
162 7fea94ce Zdenek Kabelac
    unsigned int audio_buf_size; /* in bytes */
163 01310af2 Fabrice Bellard
    int audio_buf_index; /* in bytes */
164 bea18375 Thilo Borgmann
    AVPacket audio_pkt_temp;
165 01310af2 Fabrice Bellard
    AVPacket audio_pkt;
166 5d6e4c16 Stefano Sabatini
    enum AVSampleFormat audio_src_fmt;
167 5a4476e2 Peter Ross
    AVAudioConvert *reformat_ctx;
168 115329f1 Diego Biurrun
169 01310af2 Fabrice Bellard
    int show_audio; /* if true, display audio samples */
170
    int16_t sample_array[SAMPLE_ARRAY_SIZE];
171
    int sample_array_index;
172 5e0257e3 Fabrice Bellard
    int last_i_start;
173 166621ab Måns Rullgård
    RDFTContext *rdft;
174 12eeda34 Michael Niedermayer
    int rdft_bits;
175 7dbbf6a1 Måns Rullgård
    FFTSample *rdft_data;
176 12eeda34 Michael Niedermayer
    int xpos;
177 115329f1 Diego Biurrun
178 72ce053b Ian Caulfield
    SDL_Thread *subtitle_tid;
179
    int subtitle_stream;
180
    int subtitle_stream_changed;
181
    AVStream *subtitle_st;
182
    PacketQueue subtitleq;
183
    SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
184
    int subpq_size, subpq_rindex, subpq_windex;
185
    SDL_mutex *subpq_mutex;
186
    SDL_cond *subpq_cond;
187 115329f1 Diego Biurrun
188 638c9d91 Fabrice Bellard
    double frame_timer;
189
    double frame_last_pts;
190
    double frame_last_delay;
191 115329f1 Diego Biurrun
    double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
192 01310af2 Fabrice Bellard
    int video_stream;
193
    AVStream *video_st;
194
    PacketQueue videoq;
195 267e9dfa Michael Niedermayer
    double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
196 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
197 1a620dd7 Michael Niedermayer
    int64_t video_current_pos;                   ///<current displayed file pos
198 01310af2 Fabrice Bellard
    VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
199
    int pictq_size, pictq_rindex, pictq_windex;
200
    SDL_mutex *pictq_mutex;
201
    SDL_cond *pictq_cond;
202 917d2bb3 Michael Niedermayer
#if !CONFIG_AVFILTER
203 3ac56e28 Martin Storsjö
    struct SwsContext *img_convert_ctx;
204 917d2bb3 Michael Niedermayer
#endif
205 115329f1 Diego Biurrun
206 01310af2 Fabrice Bellard
    //    QETimer *video_timer;
207
    char filename[1024];
208
    int width, height, xleft, ytop;
209 41db429d Michael Niedermayer
210 7a8bfa5d Alexander Strange
    PtsCorrectionContext pts_ctx;
211 41db429d Michael Niedermayer
212 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
213
    AVFilterContext *out_video_filter;          ///<the last filter in the video chain
214
#endif
215 d38c9e7a Michael Niedermayer
216
    float skip_frames;
217
    float skip_frames_index;
218
    int refresh;
219 01310af2 Fabrice Bellard
} VideoState;
220
221 358061f6 Diego Pettenò
static void show_help(void);
222 638c9d91 Fabrice Bellard
static int audio_write_get_buf_size(VideoState *is);
223 01310af2 Fabrice Bellard
224
/* options specified by the user */
225
static AVInputFormat *file_iformat;
226
static const char *input_filename;
227 076db5ed Robert Krüger
static const char *window_title;
228 01310af2 Fabrice Bellard
static int fs_screen_width;
229
static int fs_screen_height;
230 fccb19e3 Michael Niedermayer
static int screen_width = 0;
231
static int screen_height = 0;
232 e4b89522 Limin Wang
static int frame_width = 0;
233
static int frame_height = 0;
234
static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
235 01310af2 Fabrice Bellard
static int audio_disable;
236
static int video_disable;
237 72415b2a Stefano Sabatini
static int wanted_stream[AVMEDIA_TYPE_NB]={
238
    [AVMEDIA_TYPE_AUDIO]=-1,
239
    [AVMEDIA_TYPE_VIDEO]=-1,
240
    [AVMEDIA_TYPE_SUBTITLE]=-1,
241 5b369983 Michael Niedermayer
};
242 70a4764d Michael Niedermayer
static int seek_by_bytes=-1;
243 01310af2 Fabrice Bellard
static int display_disable;
244 1e1a0b18 Baptiste Coudurier
static int show_status = 1;
245 638c9d91 Fabrice Bellard
static int av_sync_type = AV_SYNC_AUDIO_MASTER;
246 72ea344b Fabrice Bellard
static int64_t start_time = AV_NOPTS_VALUE;
247 d834d63b Robert Krüger
static int64_t duration = AV_NOPTS_VALUE;
248 e26a8335 Wolfgang Hesseler
static int debug = 0;
249 0c9bbaec Wolfgang Hesseler
static int debug_mv = 0;
250 bba04f1e Wolfgang Hesseler
static int step = 0;
251 c62c07d3 Michael Niedermayer
static int thread_count = 1;
252 6387c3e6 Michael Niedermayer
static int workaround_bugs = 1;
253 6fc5b059 Michael Niedermayer
static int fast = 0;
254 30bc6613 Michael Niedermayer
static int genpts = 0;
255 178fcca8 Michael Niedermayer
static int lowres = 0;
256
static int idct = FF_IDCT_AUTO;
257 8c3eba7c Michael Niedermayer
static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
258
static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
259
static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
260 047599a4 Michael Niedermayer
static int error_recognition = FF_ER_CAREFUL;
261 1b51e051 Michael Niedermayer
static int error_concealment = 3;
262 41db429d Michael Niedermayer
static int decoder_reorder_pts= -1;
263 2d1653b0 Michael Niedermayer
static int autoexit;
264 066ce8c9 Alexei Svitkine
static int exit_on_keydown;
265
static int exit_on_mousedown;
266 1922c0a7 Robert Krüger
static int loop=1;
267 d38c9e7a Michael Niedermayer
static int framedrop=1;
268 2b3da32f Michael Niedermayer
269
static int rdftspeed=20;
270 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
271
static char *vfilters = NULL;
272
#endif
273 01310af2 Fabrice Bellard
274
/* current context */
275
static int is_full_screen;
276
static VideoState *cur_stream;
277 5e0257e3 Fabrice Bellard
static int64_t audio_callback_time;
278 01310af2 Fabrice Bellard
279 2c676c33 Diego Pettenò
static AVPacket flush_pkt;
280 39c6a118 Michael Niedermayer
281 01310af2 Fabrice Bellard
#define FF_ALLOC_EVENT   (SDL_USEREVENT)
282
#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
283 638c9d91 Fabrice Bellard
#define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
284 01310af2 Fabrice Bellard
285 2c676c33 Diego Pettenò
static SDL_Surface *screen;
286 01310af2 Fabrice Bellard
287 515bd00e Michael Niedermayer
static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
288
289 01310af2 Fabrice Bellard
/* packet queue handling */
290
static void packet_queue_init(PacketQueue *q)
291
{
292
    memset(q, 0, sizeof(PacketQueue));
293
    q->mutex = SDL_CreateMutex();
294
    q->cond = SDL_CreateCond();
295 515bd00e Michael Niedermayer
    packet_queue_put(q, &flush_pkt);
296 01310af2 Fabrice Bellard
}
297
298 72ea344b Fabrice Bellard
static void packet_queue_flush(PacketQueue *q)
299 01310af2 Fabrice Bellard
{
300
    AVPacketList *pkt, *pkt1;
301
302 687fae2b Ivan Wong
    SDL_LockMutex(q->mutex);
303 01310af2 Fabrice Bellard
    for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
304
        pkt1 = pkt->next;
305
        av_free_packet(&pkt->pkt);
306 da6c4573 Michael Niedermayer
        av_freep(&pkt);
307 01310af2 Fabrice Bellard
    }
308 72ea344b Fabrice Bellard
    q->last_pkt = NULL;
309
    q->first_pkt = NULL;
310
    q->nb_packets = 0;
311
    q->size = 0;
312 687fae2b Ivan Wong
    SDL_UnlockMutex(q->mutex);
313 72ea344b Fabrice Bellard
}
314
315
static void packet_queue_end(PacketQueue *q)
316
{
317
    packet_queue_flush(q);
318 01310af2 Fabrice Bellard
    SDL_DestroyMutex(q->mutex);
319
    SDL_DestroyCond(q->cond);
320
}
321
322
static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
323
{
324
    AVPacketList *pkt1;
325
326 72ea344b Fabrice Bellard
    /* duplicate the packet */
327 39c6a118 Michael Niedermayer
    if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
328 72ea344b Fabrice Bellard
        return -1;
329 115329f1 Diego Biurrun
330 01310af2 Fabrice Bellard
    pkt1 = av_malloc(sizeof(AVPacketList));
331
    if (!pkt1)
332
        return -1;
333
    pkt1->pkt = *pkt;
334
    pkt1->next = NULL;
335
336 72ea344b Fabrice Bellard
337 01310af2 Fabrice Bellard
    SDL_LockMutex(q->mutex);
338
339
    if (!q->last_pkt)
340
341
        q->first_pkt = pkt1;
342
    else
343
        q->last_pkt->next = pkt1;
344
    q->last_pkt = pkt1;
345
    q->nb_packets++;
346 7b776589 Aurelien Jacobs
    q->size += pkt1->pkt.size + sizeof(*pkt1);
347 01310af2 Fabrice Bellard
    /* XXX: should duplicate packet data in DV case */
348
    SDL_CondSignal(q->cond);
349
350
    SDL_UnlockMutex(q->mutex);
351
    return 0;
352
}
353
354
static void packet_queue_abort(PacketQueue *q)
355
{
356
    SDL_LockMutex(q->mutex);
357
358
    q->abort_request = 1;
359 115329f1 Diego Biurrun
360 01310af2 Fabrice Bellard
    SDL_CondSignal(q->cond);
361
362
    SDL_UnlockMutex(q->mutex);
363
}
364
365
/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
366
static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
367
{
368
    AVPacketList *pkt1;
369
    int ret;
370
371
    SDL_LockMutex(q->mutex);
372
373
    for(;;) {
374
        if (q->abort_request) {
375
            ret = -1;
376
            break;
377
        }
378 115329f1 Diego Biurrun
379 01310af2 Fabrice Bellard
        pkt1 = q->first_pkt;
380
        if (pkt1) {
381
            q->first_pkt = pkt1->next;
382
            if (!q->first_pkt)
383
                q->last_pkt = NULL;
384
            q->nb_packets--;
385 7b776589 Aurelien Jacobs
            q->size -= pkt1->pkt.size + sizeof(*pkt1);
386 01310af2 Fabrice Bellard
            *pkt = pkt1->pkt;
387
            av_free(pkt1);
388
            ret = 1;
389
            break;
390
        } else if (!block) {
391
            ret = 0;
392
            break;
393
        } else {
394
            SDL_CondWait(q->cond, q->mutex);
395
        }
396
    }
397
    SDL_UnlockMutex(q->mutex);
398
    return ret;
399
}
400
401 115329f1 Diego Biurrun
static inline void fill_rectangle(SDL_Surface *screen,
402 01310af2 Fabrice Bellard
                                  int x, int y, int w, int h, int color)
403
{
404
    SDL_Rect rect;
405
    rect.x = x;
406
    rect.y = y;
407
    rect.w = w;
408
    rect.h = h;
409
    SDL_FillRect(screen, &rect, color);
410
}
411
412
#if 0
413
/* draw only the border of a rectangle */
414
void fill_border(VideoState *s, int x, int y, int w, int h, int color)
415
{
416
    int w1, w2, h1, h2;
417

418
    /* fill the background */
419
    w1 = x;
420
    if (w1 < 0)
421
        w1 = 0;
422
    w2 = s->width - (x + w);
423
    if (w2 < 0)
424
        w2 = 0;
425
    h1 = y;
426
    if (h1 < 0)
427
        h1 = 0;
428
    h2 = s->height - (y + h);
429
    if (h2 < 0)
430
        h2 = 0;
431 115329f1 Diego Biurrun
    fill_rectangle(screen,
432
                   s->xleft, s->ytop,
433
                   w1, s->height,
434 01310af2 Fabrice Bellard
                   color);
435 115329f1 Diego Biurrun
    fill_rectangle(screen,
436
                   s->xleft + s->width - w2, s->ytop,
437
                   w2, s->height,
438 01310af2 Fabrice Bellard
                   color);
439 115329f1 Diego Biurrun
    fill_rectangle(screen,
440
                   s->xleft + w1, s->ytop,
441
                   s->width - w1 - w2, h1,
442 01310af2 Fabrice Bellard
                   color);
443 115329f1 Diego Biurrun
    fill_rectangle(screen,
444 01310af2 Fabrice Bellard
                   s->xleft + w1, s->ytop + s->height - h2,
445
                   s->width - w1 - w2, h2,
446
                   color);
447
}
448
#endif
449
450 72ce053b Ian Caulfield
#define ALPHA_BLEND(a, oldp, newp, s)\
451
((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
452
453
#define RGBA_IN(r, g, b, a, s)\
454
{\
455
    unsigned int v = ((const uint32_t *)(s))[0];\
456
    a = (v >> 24) & 0xff;\
457
    r = (v >> 16) & 0xff;\
458
    g = (v >> 8) & 0xff;\
459
    b = v & 0xff;\
460
}
461
462
#define YUVA_IN(y, u, v, a, s, pal)\
463
{\
464 57cf99f2 Reimar Döffinger
    unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
465 72ce053b Ian Caulfield
    a = (val >> 24) & 0xff;\
466
    y = (val >> 16) & 0xff;\
467
    u = (val >> 8) & 0xff;\
468
    v = val & 0xff;\
469
}
470
471
#define YUVA_OUT(d, y, u, v, a)\
472
{\
473
    ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
474
}
475
476
477
#define BPP 1
478
479 0a8cd696 Reimar Döffinger
static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
480 72ce053b Ian Caulfield
{
481
    int wrap, wrap3, width2, skip2;
482
    int y, u, v, a, u1, v1, a1, w, h;
483
    uint8_t *lum, *cb, *cr;
484
    const uint8_t *p;
485
    const uint32_t *pal;
486 9cb5a11e Reimar Döffinger
    int dstx, dsty, dstw, dsth;
487
488 7cf9c6ae Michael Niedermayer
    dstw = av_clip(rect->w, 0, imgw);
489
    dsth = av_clip(rect->h, 0, imgh);
490
    dstx = av_clip(rect->x, 0, imgw - dstw);
491
    dsty = av_clip(rect->y, 0, imgh - dsth);
492 9cb5a11e Reimar Döffinger
    lum = dst->data[0] + dsty * dst->linesize[0];
493
    cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
494
    cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
495
496 f54b31b9 Björn Axelsson
    width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
497 9cb5a11e Reimar Döffinger
    skip2 = dstx >> 1;
498 72ce053b Ian Caulfield
    wrap = dst->linesize[0];
499 25b4c651 Michael Niedermayer
    wrap3 = rect->pict.linesize[0];
500
    p = rect->pict.data[0];
501
    pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
502 115329f1 Diego Biurrun
503 9cb5a11e Reimar Döffinger
    if (dsty & 1) {
504
        lum += dstx;
505 72ce053b Ian Caulfield
        cb += skip2;
506
        cr += skip2;
507 115329f1 Diego Biurrun
508 9cb5a11e Reimar Döffinger
        if (dstx & 1) {
509 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
510
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
511
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
512
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
513
            cb++;
514
            cr++;
515
            lum++;
516
            p += BPP;
517
        }
518 9cb5a11e Reimar Döffinger
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
519 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
520
            u1 = u;
521
            v1 = v;
522
            a1 = a;
523
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
524
525
            YUVA_IN(y, u, v, a, p + BPP, pal);
526
            u1 += u;
527
            v1 += v;
528
            a1 += a;
529
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
530
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
531
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
532
            cb++;
533
            cr++;
534
            p += 2 * BPP;
535
            lum += 2;
536
        }
537
        if (w) {
538
            YUVA_IN(y, u, v, a, p, pal);
539
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
540
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
541
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
542 676ef505 Björn Axelsson
            p++;
543
            lum++;
544 72ce053b Ian Caulfield
        }
545 4606a059 Björn Axelsson
        p += wrap3 - dstw * BPP;
546
        lum += wrap - dstw - dstx;
547 72ce053b Ian Caulfield
        cb += dst->linesize[1] - width2 - skip2;
548
        cr += dst->linesize[2] - width2 - skip2;
549
    }
550 9cb5a11e Reimar Döffinger
    for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
551
        lum += dstx;
552 72ce053b Ian Caulfield
        cb += skip2;
553
        cr += skip2;
554 115329f1 Diego Biurrun
555 9cb5a11e Reimar Döffinger
        if (dstx & 1) {
556 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
557
            u1 = u;
558
            v1 = v;
559
            a1 = a;
560
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
561
            p += wrap3;
562
            lum += wrap;
563
            YUVA_IN(y, u, v, a, p, pal);
564
            u1 += u;
565
            v1 += v;
566
            a1 += a;
567
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
568
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
569
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
570
            cb++;
571
            cr++;
572
            p += -wrap3 + BPP;
573
            lum += -wrap + 1;
574
        }
575 9cb5a11e Reimar Döffinger
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
576 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
577
            u1 = u;
578
            v1 = v;
579
            a1 = a;
580
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
581
582 f8ca63e8 Björn Axelsson
            YUVA_IN(y, u, v, a, p + BPP, pal);
583 72ce053b Ian Caulfield
            u1 += u;
584
            v1 += v;
585
            a1 += a;
586
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
587
            p += wrap3;
588
            lum += wrap;
589
590
            YUVA_IN(y, u, v, a, p, pal);
591
            u1 += u;
592
            v1 += v;
593
            a1 += a;
594
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
595
596 f8ca63e8 Björn Axelsson
            YUVA_IN(y, u, v, a, p + BPP, pal);
597 72ce053b Ian Caulfield
            u1 += u;
598
            v1 += v;
599
            a1 += a;
600
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
601
602
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
603
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
604
605
            cb++;
606
            cr++;
607
            p += -wrap3 + 2 * BPP;
608
            lum += -wrap + 2;
609
        }
610
        if (w) {
611
            YUVA_IN(y, u, v, a, p, pal);
612
            u1 = u;
613
            v1 = v;
614
            a1 = a;
615
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
616
            p += wrap3;
617
            lum += wrap;
618
            YUVA_IN(y, u, v, a, p, pal);
619
            u1 += u;
620
            v1 += v;
621
            a1 += a;
622
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
623
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
624
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
625
            cb++;
626
            cr++;
627
            p += -wrap3 + BPP;
628
            lum += -wrap + 1;
629
        }
630 9cb5a11e Reimar Döffinger
        p += wrap3 + (wrap3 - dstw * BPP);
631
        lum += wrap + (wrap - dstw - dstx);
632 72ce053b Ian Caulfield
        cb += dst->linesize[1] - width2 - skip2;
633
        cr += dst->linesize[2] - width2 - skip2;
634
    }
635
    /* handle odd height */
636
    if (h) {
637 9cb5a11e Reimar Döffinger
        lum += dstx;
638 72ce053b Ian Caulfield
        cb += skip2;
639
        cr += skip2;
640 115329f1 Diego Biurrun
641 9cb5a11e Reimar Döffinger
        if (dstx & 1) {
642 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
643
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
644
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
645
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
646
            cb++;
647
            cr++;
648
            lum++;
649
            p += BPP;
650
        }
651 9cb5a11e Reimar Döffinger
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
652 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
653
            u1 = u;
654
            v1 = v;
655
            a1 = a;
656
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
657
658
            YUVA_IN(y, u, v, a, p + BPP, pal);
659
            u1 += u;
660
            v1 += v;
661
            a1 += a;
662
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
663
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
664
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
665
            cb++;
666
            cr++;
667
            p += 2 * BPP;
668
            lum += 2;
669
        }
670
        if (w) {
671
            YUVA_IN(y, u, v, a, p, pal);
672
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
673
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
674
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
675
        }
676
    }
677
}
678
679
static void free_subpicture(SubPicture *sp)
680
{
681 e1d7c883 Reimar Döffinger
    avsubtitle_free(&sp->sub);
682 72ce053b Ian Caulfield
}
683
684 01310af2 Fabrice Bellard
static void video_image_display(VideoState *is)
685
{
686
    VideoPicture *vp;
687 72ce053b Ian Caulfield
    SubPicture *sp;
688
    AVPicture pict;
689 01310af2 Fabrice Bellard
    float aspect_ratio;
690
    int width, height, x, y;
691
    SDL_Rect rect;
692 72ce053b Ian Caulfield
    int i;
693 01310af2 Fabrice Bellard
694
    vp = &is->pictq[is->pictq_rindex];
695
    if (vp->bmp) {
696 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
697 cc80caff S.N. Hemanth Meenakshisundaram
         if (vp->picref->video->pixel_aspect.num == 0)
698 917d2bb3 Michael Niedermayer
             aspect_ratio = 0;
699
         else
700 cc80caff S.N. Hemanth Meenakshisundaram
             aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
701 917d2bb3 Michael Niedermayer
#else
702
703 01310af2 Fabrice Bellard
        /* XXX: use variable in the frame */
704 c30a4489 Aurelien Jacobs
        if (is->video_st->sample_aspect_ratio.num)
705
            aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
706
        else if (is->video_st->codec->sample_aspect_ratio.num)
707
            aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
708 72ea344b Fabrice Bellard
        else
709 c30a4489 Aurelien Jacobs
            aspect_ratio = 0;
710 917d2bb3 Michael Niedermayer
#endif
711 01310af2 Fabrice Bellard
        if (aspect_ratio <= 0.0)
712 c30a4489 Aurelien Jacobs
            aspect_ratio = 1.0;
713 917d2bb3 Michael Niedermayer
        aspect_ratio *= (float)vp->width / (float)vp->height;
714 01310af2 Fabrice Bellard
        /* if an active format is indicated, then it overrides the
715
           mpeg format */
716
#if 0
717 01f4895c Michael Niedermayer
        if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
718
            is->dtg_active_format = is->video_st->codec->dtg_active_format;
719 01310af2 Fabrice Bellard
            printf("dtg_active_format=%d\n", is->dtg_active_format);
720
        }
721
#endif
722
#if 0
723 01f4895c Michael Niedermayer
        switch(is->video_st->codec->dtg_active_format) {
724 01310af2 Fabrice Bellard
        case FF_DTG_AFD_SAME:
725
        default:
726
            /* nothing to do */
727
            break;
728
        case FF_DTG_AFD_4_3:
729
            aspect_ratio = 4.0 / 3.0;
730
            break;
731
        case FF_DTG_AFD_16_9:
732
            aspect_ratio = 16.0 / 9.0;
733
            break;
734
        case FF_DTG_AFD_14_9:
735
            aspect_ratio = 14.0 / 9.0;
736
            break;
737
        case FF_DTG_AFD_4_3_SP_14_9:
738
            aspect_ratio = 14.0 / 9.0;
739
            break;
740
        case FF_DTG_AFD_16_9_SP_14_9:
741
            aspect_ratio = 14.0 / 9.0;
742
            break;
743
        case FF_DTG_AFD_SP_4_3:
744
            aspect_ratio = 4.0 / 3.0;
745
            break;
746
        }
747
#endif
748
749 72ce053b Ian Caulfield
        if (is->subtitle_st)
750
        {
751
            if (is->subpq_size > 0)
752
            {
753
                sp = &is->subpq[is->subpq_rindex];
754
755
                if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
756
                {
757
                    SDL_LockYUVOverlay (vp->bmp);
758
759
                    pict.data[0] = vp->bmp->pixels[0];
760
                    pict.data[1] = vp->bmp->pixels[2];
761
                    pict.data[2] = vp->bmp->pixels[1];
762
763
                    pict.linesize[0] = vp->bmp->pitches[0];
764
                    pict.linesize[1] = vp->bmp->pitches[2];
765
                    pict.linesize[2] = vp->bmp->pitches[1];
766
767
                    for (i = 0; i < sp->sub.num_rects; i++)
768 db4fac64 Michael Niedermayer
                        blend_subrect(&pict, sp->sub.rects[i],
769 0a8cd696 Reimar Döffinger
                                      vp->bmp->w, vp->bmp->h);
770 72ce053b Ian Caulfield
771
                    SDL_UnlockYUVOverlay (vp->bmp);
772
                }
773
            }
774
        }
775
776
777 01310af2 Fabrice Bellard
        /* XXX: we suppose the screen has a 1.0 pixel ratio */
778
        height = is->height;
779 bb6c34e5 Michael Niedermayer
        width = ((int)rint(height * aspect_ratio)) & ~1;
780 01310af2 Fabrice Bellard
        if (width > is->width) {
781
            width = is->width;
782 bb6c34e5 Michael Niedermayer
            height = ((int)rint(width / aspect_ratio)) & ~1;
783 01310af2 Fabrice Bellard
        }
784
        x = (is->width - width) / 2;
785
        y = (is->height - height) / 2;
786
        if (!is->no_background) {
787
            /* fill the background */
788
            //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
789
        } else {
790
            is->no_background = 0;
791
        }
792
        rect.x = is->xleft + x;
793 2f6547fb Baptiste Coudurier
        rect.y = is->ytop  + y;
794 01310af2 Fabrice Bellard
        rect.w = width;
795
        rect.h = height;
796
        SDL_DisplayYUVOverlay(vp->bmp, &rect);
797
    } else {
798
#if 0
799 115329f1 Diego Biurrun
        fill_rectangle(screen,
800
                       is->xleft, is->ytop, is->width, is->height,
801 01310af2 Fabrice Bellard
                       QERGB(0x00, 0x00, 0x00));
802
#endif
803
    }
804
}
805
806
static inline int compute_mod(int a, int b)
807
{
808
    a = a % b;
809 115329f1 Diego Biurrun
    if (a >= 0)
810 01310af2 Fabrice Bellard
        return a;
811
    else
812
        return a + b;
813
}
814
815
static void video_audio_display(VideoState *s)
816
{
817
    int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
818
    int ch, channels, h, h2, bgcolor, fgcolor;
819
    int16_t time_diff;
820 4c7c7645 Michael Niedermayer
    int rdft_bits, nb_freq;
821
822
    for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
823
        ;
824
    nb_freq= 1<<(rdft_bits-1);
825 115329f1 Diego Biurrun
826 01310af2 Fabrice Bellard
    /* compute display index : center on currently output samples */
827 01f4895c Michael Niedermayer
    channels = s->audio_st->codec->channels;
828 01310af2 Fabrice Bellard
    nb_display_channels = channels;
829 5e0257e3 Fabrice Bellard
    if (!s->paused) {
830 4c7c7645 Michael Niedermayer
        int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
831 5e0257e3 Fabrice Bellard
        n = 2 * channels;
832
        delay = audio_write_get_buf_size(s);
833
        delay /= n;
834 115329f1 Diego Biurrun
835 5e0257e3 Fabrice Bellard
        /* to be more precise, we take into account the time spent since
836
           the last buffer computation */
837
        if (audio_callback_time) {
838
            time_diff = av_gettime() - audio_callback_time;
839 122dcdcb Michael Niedermayer
            delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
840 5e0257e3 Fabrice Bellard
        }
841 115329f1 Diego Biurrun
842 122dcdcb Michael Niedermayer
        delay += 2*data_used;
843 4c7c7645 Michael Niedermayer
        if (delay < data_used)
844
            delay = data_used;
845 ac50bcc8 Michael Niedermayer
846
        i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
847 12eeda34 Michael Niedermayer
        if(s->show_audio==1){
848 6c7165c7 Jai Menon
            h= INT_MIN;
849
            for(i=0; i<1000; i+=channels){
850
                int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
851
                int a= s->sample_array[idx];
852
                int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
853
                int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
854
                int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
855
                int score= a-d;
856
                if(h<score && (b^c)<0){
857
                    h= score;
858
                    i_start= idx;
859
                }
860 ac50bcc8 Michael Niedermayer
            }
861
        }
862
863 5e0257e3 Fabrice Bellard
        s->last_i_start = i_start;
864
    } else {
865
        i_start = s->last_i_start;
866 01310af2 Fabrice Bellard
    }
867
868
    bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
869 12eeda34 Michael Niedermayer
    if(s->show_audio==1){
870 6c7165c7 Jai Menon
        fill_rectangle(screen,
871
                       s->xleft, s->ytop, s->width, s->height,
872
                       bgcolor);
873
874
        fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
875
876
        /* total height for one channel */
877
        h = s->height / nb_display_channels;
878
        /* graph height / 2 */
879
        h2 = (h * 9) / 20;
880
        for(ch = 0;ch < nb_display_channels; ch++) {
881
            i = i_start + ch;
882
            y1 = s->ytop + ch * h + (h / 2); /* position of center line */
883
            for(x = 0; x < s->width; x++) {
884
                y = (s->sample_array[i] * h2) >> 15;
885
                if (y < 0) {
886
                    y = -y;
887
                    ys = y1 - y;
888
                } else {
889
                    ys = y1;
890
                }
891
                fill_rectangle(screen,
892
                               s->xleft + x, ys, 1, y,
893
                               fgcolor);
894
                i += channels;
895
                if (i >= SAMPLE_ARRAY_SIZE)
896
                    i -= SAMPLE_ARRAY_SIZE;
897 01310af2 Fabrice Bellard
            }
898
        }
899
900 6c7165c7 Jai Menon
        fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
901 01310af2 Fabrice Bellard
902 6c7165c7 Jai Menon
        for(ch = 1;ch < nb_display_channels; ch++) {
903
            y = s->ytop + ch * h;
904
            fill_rectangle(screen,
905
                           s->xleft, y, s->width, 1,
906
                           fgcolor);
907
        }
908
        SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
909 12eeda34 Michael Niedermayer
    }else{
910
        nb_display_channels= FFMIN(nb_display_channels, 2);
911
        if(rdft_bits != s->rdft_bits){
912 166621ab Måns Rullgård
            av_rdft_end(s->rdft);
913 7dbbf6a1 Måns Rullgård
            av_free(s->rdft_data);
914 166621ab Måns Rullgård
            s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
915 12eeda34 Michael Niedermayer
            s->rdft_bits= rdft_bits;
916 7dbbf6a1 Måns Rullgård
            s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
917 12eeda34 Michael Niedermayer
        }
918
        {
919 7dbbf6a1 Måns Rullgård
            FFTSample *data[2];
920 12eeda34 Michael Niedermayer
            for(ch = 0;ch < nb_display_channels; ch++) {
921 7dbbf6a1 Måns Rullgård
                data[ch] = s->rdft_data + 2*nb_freq*ch;
922 12eeda34 Michael Niedermayer
                i = i_start + ch;
923
                for(x = 0; x < 2*nb_freq; x++) {
924
                    double w= (x-nb_freq)*(1.0/nb_freq);
925
                    data[ch][x]= s->sample_array[i]*(1.0-w*w);
926
                    i += channels;
927
                    if (i >= SAMPLE_ARRAY_SIZE)
928
                        i -= SAMPLE_ARRAY_SIZE;
929
                }
930 166621ab Måns Rullgård
                av_rdft_calc(s->rdft, data[ch]);
931 12eeda34 Michael Niedermayer
            }
932
            //least efficient way to do this, we should of course directly access it but its more than fast enough
933 092421cf Michael Niedermayer
            for(y=0; y<s->height; y++){
934 12eeda34 Michael Niedermayer
                double w= 1/sqrt(nb_freq);
935
                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]));
936 00f72577 Jai Menon
                int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
937
                       + data[1][2*y+1]*data[1][2*y+1])) : a;
938 12eeda34 Michael Niedermayer
                a= FFMIN(a,255);
939
                b= FFMIN(b,255);
940
                fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
941
942
                fill_rectangle(screen,
943
                            s->xpos, s->height-y, 1, 1,
944
                            fgcolor);
945
            }
946
        }
947
        SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
948
        s->xpos++;
949
        if(s->xpos >= s->width)
950
            s->xpos= s->xleft;
951
    }
952 01310af2 Fabrice Bellard
}
953
954 990c8438 Michael Niedermayer
static int video_open(VideoState *is){
955
    int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
956
    int w,h;
957
958 fb84155b Michael Niedermayer
    if(is_full_screen) flags |= SDL_FULLSCREEN;
959
    else               flags |= SDL_RESIZABLE;
960
961 990c8438 Michael Niedermayer
    if (is_full_screen && fs_screen_width) {
962
        w = fs_screen_width;
963
        h = fs_screen_height;
964 fb84155b Michael Niedermayer
    } else if(!is_full_screen && screen_width){
965
        w = screen_width;
966
        h = screen_height;
967 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
968
    }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
969
        w = is->out_video_filter->inputs[0]->w;
970
        h = is->out_video_filter->inputs[0]->h;
971
#else
972 fb84155b Michael Niedermayer
    }else if (is->video_st && is->video_st->codec->width){
973
        w = is->video_st->codec->width;
974
        h = is->video_st->codec->height;
975 917d2bb3 Michael Niedermayer
#endif
976 990c8438 Michael Niedermayer
    } else {
977 fb84155b Michael Niedermayer
        w = 640;
978
        h = 480;
979 990c8438 Michael Niedermayer
    }
980 d3d7b12e Michael Niedermayer
    if(screen && is->width == screen->w && screen->w == w
981
       && is->height== screen->h && screen->h == h)
982
        return 0;
983
984 c97f5402 Diego Biurrun
#ifndef __APPLE__
985 990c8438 Michael Niedermayer
    screen = SDL_SetVideoMode(w, h, 0, flags);
986
#else
987
    /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
988
    screen = SDL_SetVideoMode(w, h, 24, flags);
989
#endif
990
    if (!screen) {
991
        fprintf(stderr, "SDL: could not set video mode - exiting\n");
992
        return -1;
993
    }
994 076db5ed Robert Krüger
    if (!window_title)
995
        window_title = input_filename;
996
    SDL_WM_SetCaption(window_title, window_title);
997 990c8438 Michael Niedermayer
998
    is->width = screen->w;
999
    is->height = screen->h;
1000
1001
    return 0;
1002
}
1003 8c982c5d Michael Niedermayer
1004 01310af2 Fabrice Bellard
/* display the current picture, if any */
1005
static void video_display(VideoState *is)
1006
{
1007 8c982c5d Michael Niedermayer
    if(!screen)
1008
        video_open(cur_stream);
1009 115329f1 Diego Biurrun
    if (is->audio_st && is->show_audio)
1010 01310af2 Fabrice Bellard
        video_audio_display(is);
1011
    else if (is->video_st)
1012
        video_image_display(is);
1013
}
1014
1015 d38c9e7a Michael Niedermayer
static int refresh_thread(void *opaque)
1016 01310af2 Fabrice Bellard
{
1017 d38c9e7a Michael Niedermayer
    VideoState *is= opaque;
1018
    while(!is->abort_request){
1019 01310af2 Fabrice Bellard
    SDL_Event event;
1020
    event.type = FF_REFRESH_EVENT;
1021
    event.user.data1 = opaque;
1022 d38c9e7a Michael Niedermayer
        if(!is->refresh){
1023
            is->refresh=1;
1024 01310af2 Fabrice Bellard
    SDL_PushEvent(&event);
1025 d38c9e7a Michael Niedermayer
        }
1026 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
1027 d38c9e7a Michael Niedermayer
    }
1028
    return 0;
1029 01310af2 Fabrice Bellard
}
1030
1031 638c9d91 Fabrice Bellard
/* get the current audio clock value */
1032
static double get_audio_clock(VideoState *is)
1033
{
1034
    double pts;
1035
    int hw_buf_size, bytes_per_sec;
1036
    pts = is->audio_clock;
1037
    hw_buf_size = audio_write_get_buf_size(is);
1038
    bytes_per_sec = 0;
1039
    if (is->audio_st) {
1040 115329f1 Diego Biurrun
        bytes_per_sec = is->audio_st->codec->sample_rate *
1041 01f4895c Michael Niedermayer
            2 * is->audio_st->codec->channels;
1042 638c9d91 Fabrice Bellard
    }
1043
    if (bytes_per_sec)
1044
        pts -= (double)hw_buf_size / bytes_per_sec;
1045
    return pts;
1046
}
1047
1048
/* get the current video clock value */
1049
static double get_video_clock(VideoState *is)
1050
{
1051 04108619 Michael Niedermayer
    if (is->paused) {
1052 41a4cd0c Michael Niedermayer
        return is->video_current_pts;
1053 72ea344b Fabrice Bellard
    } else {
1054 68aefbe8 Michael Niedermayer
        return is->video_current_pts_drift + av_gettime() / 1000000.0;
1055 72ea344b Fabrice Bellard
    }
1056 638c9d91 Fabrice Bellard
}
1057
1058
/* get the current external clock value */
1059
static double get_external_clock(VideoState *is)
1060
{
1061
    int64_t ti;
1062
    ti = av_gettime();
1063
    return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1064
}
1065
1066
/* get the current master clock value */
1067
static double get_master_clock(VideoState *is)
1068
{
1069
    double val;
1070
1071 72ea344b Fabrice Bellard
    if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1072
        if (is->video_st)
1073
            val = get_video_clock(is);
1074
        else
1075
            val = get_audio_clock(is);
1076
    } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1077
        if (is->audio_st)
1078
            val = get_audio_clock(is);
1079
        else
1080
            val = get_video_clock(is);
1081
    } else {
1082 638c9d91 Fabrice Bellard
        val = get_external_clock(is);
1083 72ea344b Fabrice Bellard
    }
1084 638c9d91 Fabrice Bellard
    return val;
1085
}
1086
1087 72ea344b Fabrice Bellard
/* seek in the stream */
1088 2ef46053 Michael Niedermayer
static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1089 72ea344b Fabrice Bellard
{
1090 687fae2b Ivan Wong
    if (!is->seek_req) {
1091
        is->seek_pos = pos;
1092 4ed29207 Michael Niedermayer
        is->seek_rel = rel;
1093 3890dd3a Michael Niedermayer
        is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1094 94b594c6 Steve L'Homme
        if (seek_by_bytes)
1095
            is->seek_flags |= AVSEEK_FLAG_BYTE;
1096 687fae2b Ivan Wong
        is->seek_req = 1;
1097
    }
1098 72ea344b Fabrice Bellard
}
1099
1100
/* pause or resume the video */
1101
static void stream_pause(VideoState *is)
1102
{
1103 68aefbe8 Michael Niedermayer
    if (is->paused) {
1104
        is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1105 f5668147 Michael Niedermayer
        if(is->read_pause_return != AVERROR(ENOSYS)){
1106 68aefbe8 Michael Niedermayer
            is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1107 f5668147 Michael Niedermayer
        }
1108 68aefbe8 Michael Niedermayer
        is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1109 72ea344b Fabrice Bellard
    }
1110 68aefbe8 Michael Niedermayer
    is->paused = !is->paused;
1111 72ea344b Fabrice Bellard
}
1112
1113 d38c9e7a Michael Niedermayer
static double compute_target_time(double frame_current_pts, VideoState *is)
1114 49410784 Tomer Barletz
{
1115 d38c9e7a Michael Niedermayer
    double delay, sync_threshold, diff;
1116 49410784 Tomer Barletz
1117
    /* compute nominal delay */
1118
    delay = frame_current_pts - is->frame_last_pts;
1119
    if (delay <= 0 || delay >= 10.0) {
1120
        /* if incorrect delay, use previous one */
1121
        delay = is->frame_last_delay;
1122 443658fd Tomer Barletz
    } else {
1123 712de377 Benoit Fouet
        is->frame_last_delay = delay;
1124 443658fd Tomer Barletz
    }
1125 49410784 Tomer Barletz
    is->frame_last_pts = frame_current_pts;
1126
1127
    /* update delay to follow master synchronisation source */
1128
    if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1129
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1130
        /* if video is slave, we try to correct big delays by
1131
           duplicating or deleting a frame */
1132 f04c6e35 Michael Niedermayer
        diff = get_video_clock(is) - get_master_clock(is);
1133 49410784 Tomer Barletz
1134
        /* skip or repeat frame. We take into account the
1135
           delay to compute the threshold. I still don't know
1136
           if it is the best guess */
1137
        sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1138
        if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1139
            if (diff <= -sync_threshold)
1140
                delay = 0;
1141
            else if (diff >= sync_threshold)
1142
                delay = 2 * delay;
1143
        }
1144
    }
1145
    is->frame_timer += delay;
1146 eecc17a7 Tomer Barletz
#if defined(DEBUG_SYNC)
1147
    printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1148
            delay, actual_delay, frame_current_pts, -diff);
1149
#endif
1150
1151 d38c9e7a Michael Niedermayer
    return is->frame_timer;
1152 49410784 Tomer Barletz
}
1153
1154 01310af2 Fabrice Bellard
/* called to display each frame */
1155
static void video_refresh_timer(void *opaque)
1156
{
1157
    VideoState *is = opaque;
1158
    VideoPicture *vp;
1159 638c9d91 Fabrice Bellard
1160 72ce053b Ian Caulfield
    SubPicture *sp, *sp2;
1161 01310af2 Fabrice Bellard
1162
    if (is->video_st) {
1163 d38c9e7a Michael Niedermayer
retry:
1164 01310af2 Fabrice Bellard
        if (is->pictq_size == 0) {
1165 d38c9e7a Michael Niedermayer
            //nothing to do, no picture to display in the que
1166 01310af2 Fabrice Bellard
        } else {
1167 d38c9e7a Michael Niedermayer
            double time= av_gettime()/1000000.0;
1168
            double next_target;
1169 638c9d91 Fabrice Bellard
            /* dequeue the picture */
1170 01310af2 Fabrice Bellard
            vp = &is->pictq[is->pictq_rindex];
1171 638c9d91 Fabrice Bellard
1172 d38c9e7a Michael Niedermayer
            if(time < vp->target_clock)
1173
                return;
1174 638c9d91 Fabrice Bellard
            /* update current video pts */
1175
            is->video_current_pts = vp->pts;
1176 d38c9e7a Michael Niedermayer
            is->video_current_pts_drift = is->video_current_pts - time;
1177 a3cc2160 Michael Niedermayer
            is->video_current_pos = vp->pos;
1178 d38c9e7a Michael Niedermayer
            if(is->pictq_size > 1){
1179
                VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1180
                assert(nextvp->target_clock >= vp->target_clock);
1181
                next_target= nextvp->target_clock;
1182
            }else{
1183
                next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1184
            }
1185
            if(framedrop && time > next_target){
1186
                is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1187
                if(is->pictq_size > 1 || time > next_target + 0.5){
1188
                    /* update queue size and signal for next picture */
1189
                    if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1190
                        is->pictq_rindex = 0;
1191
1192
                    SDL_LockMutex(is->pictq_mutex);
1193
                    is->pictq_size--;
1194
                    SDL_CondSignal(is->pictq_cond);
1195
                    SDL_UnlockMutex(is->pictq_mutex);
1196
                    goto retry;
1197
                }
1198
            }
1199 638c9d91 Fabrice Bellard
1200 72ce053b Ian Caulfield
            if(is->subtitle_st) {
1201
                if (is->subtitle_stream_changed) {
1202
                    SDL_LockMutex(is->subpq_mutex);
1203 115329f1 Diego Biurrun
1204 72ce053b Ian Caulfield
                    while (is->subpq_size) {
1205
                        free_subpicture(&is->subpq[is->subpq_rindex]);
1206 115329f1 Diego Biurrun
1207 72ce053b Ian Caulfield
                        /* update queue size and signal for next picture */
1208
                        if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1209
                            is->subpq_rindex = 0;
1210 115329f1 Diego Biurrun
1211 72ce053b Ian Caulfield
                        is->subpq_size--;
1212
                    }
1213
                    is->subtitle_stream_changed = 0;
1214
1215
                    SDL_CondSignal(is->subpq_cond);
1216
                    SDL_UnlockMutex(is->subpq_mutex);
1217
                } else {
1218
                    if (is->subpq_size > 0) {
1219
                        sp = &is->subpq[is->subpq_rindex];
1220
1221
                        if (is->subpq_size > 1)
1222
                            sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1223
                        else
1224
                            sp2 = NULL;
1225
1226
                        if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1227
                                || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1228
                        {
1229
                            free_subpicture(sp);
1230
1231
                            /* update queue size and signal for next picture */
1232
                            if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1233
                                is->subpq_rindex = 0;
1234
1235
                            SDL_LockMutex(is->subpq_mutex);
1236
                            is->subpq_size--;
1237
                            SDL_CondSignal(is->subpq_cond);
1238
                            SDL_UnlockMutex(is->subpq_mutex);
1239
                        }
1240
                    }
1241
                }
1242
            }
1243
1244 01310af2 Fabrice Bellard
            /* display picture */
1245
            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
        video_display(is);
1264
    }
1265
    if (show_status) {
1266
        static int64_t last_time;
1267
        int64_t cur_time;
1268 72ce053b Ian Caulfield
        int aqsize, vqsize, sqsize;
1269 638c9d91 Fabrice Bellard
        double av_diff;
1270 115329f1 Diego Biurrun
1271 01310af2 Fabrice Bellard
        cur_time = av_gettime();
1272 1e1a0b18 Baptiste Coudurier
        if (!last_time || (cur_time - last_time) >= 30000) {
1273 01310af2 Fabrice Bellard
            aqsize = 0;
1274
            vqsize = 0;
1275 72ce053b Ian Caulfield
            sqsize = 0;
1276 01310af2 Fabrice Bellard
            if (is->audio_st)
1277
                aqsize = is->audioq.size;
1278
            if (is->video_st)
1279
                vqsize = is->videoq.size;
1280 72ce053b Ian Caulfield
            if (is->subtitle_st)
1281
                sqsize = is->subtitleq.size;
1282 638c9d91 Fabrice Bellard
            av_diff = 0;
1283
            if (is->audio_st && is->video_st)
1284
                av_diff = get_audio_clock(is) - get_video_clock(is);
1285 382f3a5b Michael Niedermayer
            printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
1286 7a8bfa5d Alexander Strange
                   get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1287 01310af2 Fabrice Bellard
            fflush(stdout);
1288
            last_time = cur_time;
1289
        }
1290
    }
1291
}
1292
1293 f7b8c814 Mike Scheutzow
static void stream_close(VideoState *is)
1294
{
1295
    VideoPicture *vp;
1296
    int i;
1297
    /* XXX: use a special url_shutdown call to abort parse cleanly */
1298
    is->abort_request = 1;
1299
    SDL_WaitThread(is->parse_tid, NULL);
1300
    SDL_WaitThread(is->refresh_tid, NULL);
1301
1302
    /* free all pictures */
1303
    for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1304
        vp = &is->pictq[i];
1305
#if CONFIG_AVFILTER
1306
        if (vp->picref) {
1307
            avfilter_unref_buffer(vp->picref);
1308
            vp->picref = NULL;
1309
        }
1310
#endif
1311
        if (vp->bmp) {
1312
            SDL_FreeYUVOverlay(vp->bmp);
1313
            vp->bmp = NULL;
1314
        }
1315
    }
1316
    SDL_DestroyMutex(is->pictq_mutex);
1317
    SDL_DestroyCond(is->pictq_cond);
1318
    SDL_DestroyMutex(is->subpq_mutex);
1319
    SDL_DestroyCond(is->subpq_cond);
1320
#if !CONFIG_AVFILTER
1321
    if (is->img_convert_ctx)
1322
        sws_freeContext(is->img_convert_ctx);
1323
#endif
1324
    av_free(is);
1325
}
1326
1327
static void do_exit(void)
1328
{
1329
    if (cur_stream) {
1330
        stream_close(cur_stream);
1331
        cur_stream = NULL;
1332
    }
1333 a5c33faa Reimar Döffinger
    uninit_opts();
1334 f7b8c814 Mike Scheutzow
#if CONFIG_AVFILTER
1335
    avfilter_uninit();
1336
#endif
1337
    if (show_status)
1338
        printf("\n");
1339
    SDL_Quit();
1340 6b6bca64 Michael Niedermayer
    av_log(NULL, AV_LOG_QUIET, "");
1341 f7b8c814 Mike Scheutzow
    exit(0);
1342
}
1343
1344 01310af2 Fabrice Bellard
/* allocate a picture (needs to do that in main thread to avoid
1345
   potential locking problems */
1346
static void alloc_picture(void *opaque)
1347
{
1348
    VideoState *is = opaque;
1349
    VideoPicture *vp;
1350
1351
    vp = &is->pictq[is->pictq_windex];
1352
1353
    if (vp->bmp)
1354
        SDL_FreeYUVOverlay(vp->bmp);
1355
1356 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1357
    if (vp->picref)
1358 7fce481a S.N. Hemanth Meenakshisundaram
        avfilter_unref_buffer(vp->picref);
1359 917d2bb3 Michael Niedermayer
    vp->picref = NULL;
1360
1361
    vp->width   = is->out_video_filter->inputs[0]->w;
1362
    vp->height  = is->out_video_filter->inputs[0]->h;
1363
    vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1364
#else
1365
    vp->width   = is->video_st->codec->width;
1366
    vp->height  = is->video_st->codec->height;
1367
    vp->pix_fmt = is->video_st->codec->pix_fmt;
1368
#endif
1369
1370
    vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1371 115329f1 Diego Biurrun
                                   SDL_YV12_OVERLAY,
1372 61890b02 Fabrice Bellard
                                   screen);
1373 cb036f90 Mike Scheutzow
    if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1374
        /* SDL allocates a buffer smaller than requested if the video
1375
         * overlay hardware is unable to support the requested size. */
1376
        fprintf(stderr, "Error: the video system does not support an image\n"
1377 aa78a6d6 Carl Eugen Hoyos
                        "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1378 cb036f90 Mike Scheutzow
                        "to reduce the image size.\n", vp->width, vp->height );
1379
        do_exit();
1380
    }
1381 01310af2 Fabrice Bellard
1382
    SDL_LockMutex(is->pictq_mutex);
1383
    vp->allocated = 1;
1384
    SDL_CondSignal(is->pictq_cond);
1385
    SDL_UnlockMutex(is->pictq_mutex);
1386
}
1387
1388 267e9dfa Michael Niedermayer
/**
1389
 *
1390
 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1391
 */
1392 1a620dd7 Michael Niedermayer
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1393 01310af2 Fabrice Bellard
{
1394
    VideoPicture *vp;
1395
    int dst_pix_fmt;
1396 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1397
    AVPicture pict_src;
1398
#endif
1399 01310af2 Fabrice Bellard
    /* wait until we have space to put a new picture */
1400
    SDL_LockMutex(is->pictq_mutex);
1401 d38c9e7a Michael Niedermayer
1402
    if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1403
        is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1404
1405 01310af2 Fabrice Bellard
    while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1406
           !is->videoq.abort_request) {
1407
        SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1408
    }
1409
    SDL_UnlockMutex(is->pictq_mutex);
1410 115329f1 Diego Biurrun
1411 01310af2 Fabrice Bellard
    if (is->videoq.abort_request)
1412
        return -1;
1413
1414
    vp = &is->pictq[is->pictq_windex];
1415
1416
    /* alloc or resize hardware picture buffer */
1417 115329f1 Diego Biurrun
    if (!vp->bmp ||
1418 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1419
        vp->width  != is->out_video_filter->inputs[0]->w ||
1420
        vp->height != is->out_video_filter->inputs[0]->h) {
1421
#else
1422 01f4895c Michael Niedermayer
        vp->width != is->video_st->codec->width ||
1423
        vp->height != is->video_st->codec->height) {
1424 917d2bb3 Michael Niedermayer
#endif
1425 01310af2 Fabrice Bellard
        SDL_Event event;
1426
1427
        vp->allocated = 0;
1428
1429
        /* the allocation must be done in the main thread to avoid
1430
           locking problems */
1431
        event.type = FF_ALLOC_EVENT;
1432
        event.user.data1 = is;
1433
        SDL_PushEvent(&event);
1434 115329f1 Diego Biurrun
1435 01310af2 Fabrice Bellard
        /* wait until the picture is allocated */
1436
        SDL_LockMutex(is->pictq_mutex);
1437
        while (!vp->allocated && !is->videoq.abort_request) {
1438
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1439
        }
1440
        SDL_UnlockMutex(is->pictq_mutex);
1441
1442
        if (is->videoq.abort_request)
1443
            return -1;
1444
    }
1445
1446 638c9d91 Fabrice Bellard
    /* if the frame is not skipped, then display it */
1447 01310af2 Fabrice Bellard
    if (vp->bmp) {
1448 fbf1b885 avcoder
        AVPicture pict;
1449 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1450
        if(vp->picref)
1451 7fce481a S.N. Hemanth Meenakshisundaram
            avfilter_unref_buffer(vp->picref);
1452 917d2bb3 Michael Niedermayer
        vp->picref = src_frame->opaque;
1453
#endif
1454 fbf1b885 avcoder
1455 01310af2 Fabrice Bellard
        /* get a pointer on the bitmap */
1456
        SDL_LockYUVOverlay (vp->bmp);
1457
1458
        dst_pix_fmt = PIX_FMT_YUV420P;
1459 fbf1b885 avcoder
        memset(&pict,0,sizeof(AVPicture));
1460 01310af2 Fabrice Bellard
        pict.data[0] = vp->bmp->pixels[0];
1461
        pict.data[1] = vp->bmp->pixels[2];
1462
        pict.data[2] = vp->bmp->pixels[1];
1463
1464
        pict.linesize[0] = vp->bmp->pitches[0];
1465
        pict.linesize[1] = vp->bmp->pitches[2];
1466
        pict.linesize[2] = vp->bmp->pitches[1];
1467 917d2bb3 Michael Niedermayer
1468
#if CONFIG_AVFILTER
1469
        pict_src.data[0] = src_frame->data[0];
1470
        pict_src.data[1] = src_frame->data[1];
1471
        pict_src.data[2] = src_frame->data[2];
1472
1473
        pict_src.linesize[0] = src_frame->linesize[0];
1474
        pict_src.linesize[1] = src_frame->linesize[1];
1475
        pict_src.linesize[2] = src_frame->linesize[2];
1476
1477
        //FIXME use direct rendering
1478
        av_picture_copy(&pict, &pict_src,
1479
                        vp->pix_fmt, vp->width, vp->height);
1480
#else
1481 e43d7a18 Michael Niedermayer
        sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1482 3ac56e28 Martin Storsjö
        is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1483 917d2bb3 Michael Niedermayer
            vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1484 feb7bc67 Alex Beregszaszi
            dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1485 3ac56e28 Martin Storsjö
        if (is->img_convert_ctx == NULL) {
1486 26ba8235 Alex Beregszaszi
            fprintf(stderr, "Cannot initialize the conversion context\n");
1487
            exit(1);
1488
        }
1489 3ac56e28 Martin Storsjö
        sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1490 917d2bb3 Michael Niedermayer
                  0, vp->height, pict.data, pict.linesize);
1491
#endif
1492 01310af2 Fabrice Bellard
        /* update the bitmap content */
1493
        SDL_UnlockYUVOverlay(vp->bmp);
1494
1495 638c9d91 Fabrice Bellard
        vp->pts = pts;
1496 1a620dd7 Michael Niedermayer
        vp->pos = pos;
1497 01310af2 Fabrice Bellard
1498
        /* now we can update the picture count */
1499
        if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1500
            is->pictq_windex = 0;
1501
        SDL_LockMutex(is->pictq_mutex);
1502 d38c9e7a Michael Niedermayer
        vp->target_clock= compute_target_time(vp->pts, is);
1503
1504 01310af2 Fabrice Bellard
        is->pictq_size++;
1505
        SDL_UnlockMutex(is->pictq_mutex);
1506
    }
1507 638c9d91 Fabrice Bellard
    return 0;
1508
}
1509
1510 115329f1 Diego Biurrun
/**
1511
 * compute the exact PTS for the picture if it is omitted in the stream
1512 267e9dfa Michael Niedermayer
 * @param pts1 the dts of the pkt / pts of the frame
1513
 */
1514 1a620dd7 Michael Niedermayer
static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1515 638c9d91 Fabrice Bellard
{
1516
    double frame_delay, pts;
1517 115329f1 Diego Biurrun
1518 638c9d91 Fabrice Bellard
    pts = pts1;
1519
1520 01310af2 Fabrice Bellard
    if (pts != 0) {
1521 638c9d91 Fabrice Bellard
        /* update video clock with pts, if present */
1522 01310af2 Fabrice Bellard
        is->video_clock = pts;
1523
    } else {
1524 72ea344b Fabrice Bellard
        pts = is->video_clock;
1525
    }
1526
    /* update video clock for next frame */
1527 01f4895c Michael Niedermayer
    frame_delay = av_q2d(is->video_st->codec->time_base);
1528 72ea344b Fabrice Bellard
    /* for MPEG2, the frame can be repeated, so we update the
1529
       clock accordingly */
1530 267e9dfa Michael Niedermayer
    frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1531 72ea344b Fabrice Bellard
    is->video_clock += frame_delay;
1532 638c9d91 Fabrice Bellard
1533
#if defined(DEBUG_SYNC) && 0
1534 ff358eca Stefano Sabatini
    printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1535
           av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1536 638c9d91 Fabrice Bellard
#endif
1537 1a620dd7 Michael Niedermayer
    return queue_picture(is, src_frame, pts, pos);
1538 01310af2 Fabrice Bellard
}
1539
1540 3966a574 Michael Niedermayer
static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1541 01310af2 Fabrice Bellard
{
1542 6c7d3ead Michael Niedermayer
    int len1, got_picture, i;
1543 01310af2 Fabrice Bellard
1544
        if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1545 917d2bb3 Michael Niedermayer
            return -1;
1546 39c6a118 Michael Niedermayer
1547
        if(pkt->data == flush_pkt.data){
1548
            avcodec_flush_buffers(is->video_st->codec);
1549 6c7d3ead Michael Niedermayer
1550
            SDL_LockMutex(is->pictq_mutex);
1551
            //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1552
            for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1553 d38c9e7a Michael Niedermayer
                is->pictq[i].target_clock= 0;
1554 6c7d3ead Michael Niedermayer
            }
1555
            while (is->pictq_size && !is->videoq.abort_request) {
1556
                SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1557
            }
1558 1a620dd7 Michael Niedermayer
            is->video_current_pos= -1;
1559 6c7d3ead Michael Niedermayer
            SDL_UnlockMutex(is->pictq_mutex);
1560
1561 7a8bfa5d Alexander Strange
            init_pts_correction(&is->pts_ctx);
1562 967030eb Michael Niedermayer
            is->frame_last_pts= AV_NOPTS_VALUE;
1563 f7119e42 Michael Niedermayer
            is->frame_last_delay = 0;
1564 b25453bd Michael Niedermayer
            is->frame_timer = (double)av_gettime() / 1000000.0;
1565 d38c9e7a Michael Niedermayer
            is->skip_frames= 1;
1566
            is->skip_frames_index= 0;
1567 917d2bb3 Michael Niedermayer
            return 0;
1568 39c6a118 Michael Niedermayer
        }
1569
1570 638c9d91 Fabrice Bellard
        /* NOTE: ipts is the PTS of the _first_ picture beginning in
1571
           this packet, if any */
1572 7fb262b5 Michael Niedermayer
        is->video_st->codec->reordered_opaque= pkt->pts;
1573 bea18375 Thilo Borgmann
        len1 = avcodec_decode_video2(is->video_st->codec,
1574 620e8baf Michael Niedermayer
                                    frame, &got_picture,
1575 bea18375 Thilo Borgmann
                                    pkt);
1576 620e8baf Michael Niedermayer
1577 99e0b12b Michael Niedermayer
        if (got_picture) {
1578 7a8bfa5d Alexander Strange
            if (decoder_reorder_pts == -1) {
1579
                *pts = guess_correct_pts(&is->pts_ctx, frame->reordered_opaque, pkt->dts);
1580
            } else if (decoder_reorder_pts) {
1581
                *pts = frame->reordered_opaque;
1582
            } else {
1583
                *pts = pkt->dts;
1584 df7d6e48 Stefano Sabatini
            }
1585 7a8bfa5d Alexander Strange
1586
            if (*pts == AV_NOPTS_VALUE) {
1587
                *pts = 0;
1588 df7d6e48 Stefano Sabatini
            }
1589 99e0b12b Michael Niedermayer
        }
1590 41db429d Michael Niedermayer
1591 fb966f99 Michael Niedermayer
//            if (len1 < 0)
1592
//                break;
1593 d38c9e7a Michael Niedermayer
    if (got_picture){
1594
        is->skip_frames_index += 1;
1595
        if(is->skip_frames_index >= is->skip_frames){
1596
            is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1597
            return 1;
1598
        }
1599
1600
    }
1601 917d2bb3 Michael Niedermayer
    return 0;
1602
}
1603
1604
#if CONFIG_AVFILTER
1605
typedef struct {
1606
    VideoState *is;
1607
    AVFrame *frame;
1608 dd0c789b Bobby Bingham
    int use_dr1;
1609 917d2bb3 Michael Niedermayer
} FilterPriv;
1610
1611 dd0c789b Bobby Bingham
static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1612
{
1613
    AVFilterContext *ctx = codec->opaque;
1614 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef  *ref;
1615 dd0c789b Bobby Bingham
    int perms = AV_PERM_WRITE;
1616 65929418 François Revol
    int i, w, h, stride[4];
1617 dd0c789b Bobby Bingham
    unsigned edge;
1618
1619
    if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1620
        if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1621
        if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1622
        if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1623
    }
1624
    if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1625
1626
    w = codec->width;
1627
    h = codec->height;
1628
    avcodec_align_dimensions2(codec, &w, &h, stride);
1629
    edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1630
    w += edge << 1;
1631
    h += edge << 1;
1632
1633
    if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1634
        return -1;
1635
1636 cc80caff S.N. Hemanth Meenakshisundaram
    ref->video->w = codec->width;
1637
    ref->video->h = codec->height;
1638 cfb7e6e6 Jai Menon
    for(i = 0; i < 4; i ++) {
1639 d54e0948 S.N. Hemanth Meenakshisundaram
        unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1640
        unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1641 dd0c789b Bobby Bingham
1642 3635c07b Jai Menon
        if (ref->data[i]) {
1643 e53ca636 Jai Menon
            ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1644 3635c07b Jai Menon
        }
1645 dd0c789b Bobby Bingham
        pic->data[i]     = ref->data[i];
1646
        pic->linesize[i] = ref->linesize[i];
1647
    }
1648
    pic->opaque = ref;
1649
    pic->age    = INT_MAX;
1650
    pic->type   = FF_BUFFER_TYPE_USER;
1651 867ab7fb Michael Niedermayer
    pic->reordered_opaque = codec->reordered_opaque;
1652 dd0c789b Bobby Bingham
    return 0;
1653
}
1654
1655
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1656
{
1657
    memset(pic->data, 0, sizeof(pic->data));
1658 7fce481a S.N. Hemanth Meenakshisundaram
    avfilter_unref_buffer(pic->opaque);
1659 dd0c789b Bobby Bingham
}
1660
1661 12bd3c1f Jai Menon
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1662
{
1663 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef *ref = pic->opaque;
1664 12bd3c1f Jai Menon
1665
    if (pic->data[0] == NULL) {
1666
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1667
        return codec->get_buffer(codec, pic);
1668
    }
1669
1670 cc80caff S.N. Hemanth Meenakshisundaram
    if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1671 d54e0948 S.N. Hemanth Meenakshisundaram
        (codec->pix_fmt != ref->format)) {
1672 12bd3c1f Jai Menon
        av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1673
        return -1;
1674
    }
1675
1676
    pic->reordered_opaque = codec->reordered_opaque;
1677
    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 dd0c789b Bobby Bingham
    }
1695
1696 917d2bb3 Michael Niedermayer
    priv->frame = avcodec_alloc_frame();
1697
1698
    return 0;
1699
}
1700
1701
static void input_uninit(AVFilterContext *ctx)
1702
{
1703
    FilterPriv *priv = ctx->priv;
1704
    av_free(priv->frame);
1705
}
1706
1707
static int input_request_frame(AVFilterLink *link)
1708
{
1709
    FilterPriv *priv = link->src->priv;
1710 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef *picref;
1711 3966a574 Michael Niedermayer
    int64_t pts = 0;
1712 917d2bb3 Michael Niedermayer
    AVPacket pkt;
1713
    int ret;
1714
1715
    while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1716
        av_free_packet(&pkt);
1717
    if (ret < 0)
1718
        return -1;
1719
1720 dd0c789b Bobby Bingham
    if(priv->use_dr1) {
1721 7fce481a S.N. Hemanth Meenakshisundaram
        picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1722 dd0c789b Bobby Bingham
    } else {
1723 cf097cbc Bobby Bingham
        picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1724 34017fd9 Stefano Sabatini
        av_image_copy(picref->data, picref->linesize,
1725 4afbcf46 Stefano Sabatini
                      priv->frame->data, priv->frame->linesize,
1726
                      picref->format, link->w, link->h);
1727 dd0c789b Bobby Bingham
    }
1728 917d2bb3 Michael Niedermayer
    av_free_packet(&pkt);
1729
1730
    picref->pts = pts;
1731 bb409513 Stefano Sabatini
    picref->pos = pkt.pos;
1732 cc80caff S.N. Hemanth Meenakshisundaram
    picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1733 c41c5b02 Bobby Bingham
    avfilter_start_frame(link, picref);
1734 917d2bb3 Michael Niedermayer
    avfilter_draw_slice(link, 0, link->h, 1);
1735
    avfilter_end_frame(link);
1736
1737
    return 0;
1738
}
1739
1740
static int input_query_formats(AVFilterContext *ctx)
1741
{
1742
    FilterPriv *priv = ctx->priv;
1743
    enum PixelFormat pix_fmts[] = {
1744
        priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1745
    };
1746
1747
    avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1748
    return 0;
1749
}
1750
1751
static int input_config_props(AVFilterLink *link)
1752
{
1753
    FilterPriv *priv  = link->src->priv;
1754
    AVCodecContext *c = priv->is->video_st->codec;
1755
1756
    link->w = c->width;
1757
    link->h = c->height;
1758 387b4ac9 Stefano Sabatini
    link->time_base = priv->is->video_st->time_base;
1759 917d2bb3 Michael Niedermayer
1760
    return 0;
1761
}
1762
1763
static AVFilter input_filter =
1764
{
1765
    .name      = "ffplay_input",
1766
1767
    .priv_size = sizeof(FilterPriv),
1768
1769
    .init      = input_init,
1770
    .uninit    = input_uninit,
1771
1772
    .query_formats = input_query_formats,
1773
1774
    .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1775
    .outputs   = (AVFilterPad[]) {{ .name = "default",
1776 72415b2a Stefano Sabatini
                                    .type = AVMEDIA_TYPE_VIDEO,
1777 917d2bb3 Michael Niedermayer
                                    .request_frame = input_request_frame,
1778
                                    .config_props  = input_config_props, },
1779
                                  { .name = NULL }},
1780
};
1781
1782
#endif  /* CONFIG_AVFILTER */
1783
1784
static int video_thread(void *arg)
1785
{
1786
    VideoState *is = arg;
1787
    AVFrame *frame= avcodec_alloc_frame();
1788 4903b5ca Diego Biurrun
    int64_t pts_int;
1789 917d2bb3 Michael Niedermayer
    double pts;
1790
    int ret;
1791
1792
#if CONFIG_AVFILTER
1793 4903b5ca Diego Biurrun
    int64_t pos;
1794 3f073fa2 Stefano Sabatini
    char sws_flags_str[128];
1795 f7ead94c Stefano Sabatini
    FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1796 917d2bb3 Michael Niedermayer
    AVFilterContext *filt_src = NULL, *filt_out = NULL;
1797 e15aeea6 Stefano Sabatini
    AVFilterGraph *graph = avfilter_graph_alloc();
1798 3f073fa2 Stefano Sabatini
    snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1799
    graph->scale_sws_opts = av_strdup(sws_flags_str);
1800 917d2bb3 Michael Niedermayer
1801 84c03869 Stefano Sabatini
    if (avfilter_open(&filt_src, &input_filter,  "src") < 0) goto the_end;
1802 f7ead94c Stefano Sabatini
    if (avfilter_open(&filt_out, &ffsink      ,  "out") < 0) goto the_end;
1803 917d2bb3 Michael Niedermayer
1804
    if(avfilter_init_filter(filt_src, NULL, is))             goto the_end;
1805 f7ead94c Stefano Sabatini
    if(avfilter_init_filter(filt_out, NULL, &ffsink_ctx))    goto the_end;
1806 917d2bb3 Michael Niedermayer
1807
1808
    if(vfilters) {
1809
        AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1810
        AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1811
1812
        outputs->name    = av_strdup("in");
1813 7313132b Stefano Sabatini
        outputs->filter_ctx = filt_src;
1814 917d2bb3 Michael Niedermayer
        outputs->pad_idx = 0;
1815
        outputs->next    = NULL;
1816
1817
        inputs->name    = av_strdup("out");
1818 7313132b Stefano Sabatini
        inputs->filter_ctx = filt_out;
1819 917d2bb3 Michael Niedermayer
        inputs->pad_idx = 0;
1820
        inputs->next    = NULL;
1821
1822
        if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1823
            goto the_end;
1824
        av_freep(&vfilters);
1825
    } else {
1826
        if(avfilter_link(filt_src, 0, filt_out, 0) < 0)          goto the_end;
1827
    }
1828
    avfilter_graph_add_filter(graph, filt_src);
1829
    avfilter_graph_add_filter(graph, filt_out);
1830
1831 2a24df93 Stefano Sabatini
    if (avfilter_graph_config(graph, NULL) < 0)
1832
        goto the_end;
1833 917d2bb3 Michael Niedermayer
1834
    is->out_video_filter = filt_out;
1835
#endif
1836
1837
    for(;;) {
1838
#if !CONFIG_AVFILTER
1839
        AVPacket pkt;
1840 387b4ac9 Stefano Sabatini
#else
1841 ff0652e5 Stefano Sabatini
        AVFilterBufferRef *picref;
1842 387b4ac9 Stefano Sabatini
        AVRational tb;
1843 917d2bb3 Michael Niedermayer
#endif
1844
        while (is->paused && !is->videoq.abort_request)
1845
            SDL_Delay(10);
1846
#if CONFIG_AVFILTER
1847 ff0652e5 Stefano Sabatini
        ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1848
        if (picref) {
1849
            pts_int = picref->pts;
1850
            pos     = picref->pos;
1851
            frame->opaque = picref;
1852
        }
1853 387b4ac9 Stefano Sabatini
1854
        if (av_cmp_q(tb, is->video_st->time_base)) {
1855
            int64_t pts1 = pts_int;
1856
            pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1857
            av_log(NULL, AV_LOG_DEBUG, "video_thread(): "
1858
                   "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1859
                   tb.num, tb.den, pts1,
1860
                   is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1861
        }
1862 917d2bb3 Michael Niedermayer
#else
1863
        ret = get_video_frame(is, frame, &pts_int, &pkt);
1864
#endif
1865
1866
        if (ret < 0) goto the_end;
1867
1868
        if (!ret)
1869
            continue;
1870
1871 3966a574 Michael Niedermayer
        pts = pts_int*av_q2d(is->video_st->time_base);
1872 917d2bb3 Michael Niedermayer
1873
#if CONFIG_AVFILTER
1874 bb409513 Stefano Sabatini
        ret = output_picture2(is, frame, pts, pos);
1875 917d2bb3 Michael Niedermayer
#else
1876 fca62599 Michael Niedermayer
        ret = output_picture2(is, frame, pts,  pkt.pos);
1877 917d2bb3 Michael Niedermayer
        av_free_packet(&pkt);
1878
#endif
1879
        if (ret < 0)
1880
            goto the_end;
1881
1882 115329f1 Diego Biurrun
        if (step)
1883 bba04f1e Wolfgang Hesseler
            if (cur_stream)
1884
                stream_pause(cur_stream);
1885 01310af2 Fabrice Bellard
    }
1886
 the_end:
1887 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1888 97dd1e4a Stefano Sabatini
    avfilter_graph_free(graph);
1889 917d2bb3 Michael Niedermayer
    av_freep(&graph);
1890
#endif
1891 c6b1edc9 Michael Niedermayer
    av_free(frame);
1892 01310af2 Fabrice Bellard
    return 0;
1893
}
1894
1895 72ce053b Ian Caulfield
static int subtitle_thread(void *arg)
1896
{
1897
    VideoState *is = arg;
1898
    SubPicture *sp;
1899
    AVPacket pkt1, *pkt = &pkt1;
1900
    int len1, got_subtitle;
1901
    double pts;
1902
    int i, j;
1903
    int r, g, b, y, u, v, a;
1904
1905
    for(;;) {
1906
        while (is->paused && !is->subtitleq.abort_request) {
1907
            SDL_Delay(10);
1908
        }
1909
        if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1910
            break;
1911 115329f1 Diego Biurrun
1912 39c6a118 Michael Niedermayer
        if(pkt->data == flush_pkt.data){
1913
            avcodec_flush_buffers(is->subtitle_st->codec);
1914
            continue;
1915
        }
1916 72ce053b Ian Caulfield
        SDL_LockMutex(is->subpq_mutex);
1917
        while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1918
               !is->subtitleq.abort_request) {
1919
            SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1920
        }
1921
        SDL_UnlockMutex(is->subpq_mutex);
1922 115329f1 Diego Biurrun
1923 72ce053b Ian Caulfield
        if (is->subtitleq.abort_request)
1924
            goto the_end;
1925 115329f1 Diego Biurrun
1926 72ce053b Ian Caulfield
        sp = &is->subpq[is->subpq_windex];
1927
1928
       /* NOTE: ipts is the PTS of the _first_ picture beginning in
1929
           this packet, if any */
1930
        pts = 0;
1931
        if (pkt->pts != AV_NOPTS_VALUE)
1932
            pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1933
1934 bea18375 Thilo Borgmann
        len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1935 115329f1 Diego Biurrun
                                    &sp->sub, &got_subtitle,
1936 bea18375 Thilo Borgmann
                                    pkt);
1937 72ce053b Ian Caulfield
//            if (len1 < 0)
1938
//                break;
1939
        if (got_subtitle && sp->sub.format == 0) {
1940
            sp->pts = pts;
1941 115329f1 Diego Biurrun
1942 72ce053b Ian Caulfield
            for (i = 0; i < sp->sub.num_rects; i++)
1943
            {
1944 db4fac64 Michael Niedermayer
                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1945 72ce053b Ian Caulfield
                {
1946 25b4c651 Michael Niedermayer
                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1947 72ce053b Ian Caulfield
                    y = RGB_TO_Y_CCIR(r, g, b);
1948
                    u = RGB_TO_U_CCIR(r, g, b, 0);
1949
                    v = RGB_TO_V_CCIR(r, g, b, 0);
1950 25b4c651 Michael Niedermayer
                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1951 72ce053b Ian Caulfield
                }
1952
            }
1953
1954
            /* now we can update the picture count */
1955
            if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1956
                is->subpq_windex = 0;
1957
            SDL_LockMutex(is->subpq_mutex);
1958
            is->subpq_size++;
1959
            SDL_UnlockMutex(is->subpq_mutex);
1960
        }
1961
        av_free_packet(pkt);
1962 115329f1 Diego Biurrun
//        if (step)
1963 72ce053b Ian Caulfield
//            if (cur_stream)
1964
//                stream_pause(cur_stream);
1965
    }
1966
 the_end:
1967
    return 0;
1968
}
1969
1970 01310af2 Fabrice Bellard
/* copy samples for viewing in editor window */
1971
static void update_sample_display(VideoState *is, short *samples, int samples_size)
1972
{
1973
    int size, len, channels;
1974
1975 01f4895c Michael Niedermayer
    channels = is->audio_st->codec->channels;
1976 01310af2 Fabrice Bellard
1977
    size = samples_size / sizeof(short);
1978
    while (size > 0) {
1979
        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1980
        if (len > size)
1981
            len = size;
1982
        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1983
        samples += len;
1984
        is->sample_array_index += len;
1985
        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1986
            is->sample_array_index = 0;
1987
        size -= len;
1988
    }
1989
}
1990
1991
/* return the new audio buffer size (samples can be added or deleted
1992
   to get better sync if video or external master clock) */
1993 115329f1 Diego Biurrun
static int synchronize_audio(VideoState *is, short *samples,
1994 638c9d91 Fabrice Bellard
                             int samples_size1, double pts)
1995 01310af2 Fabrice Bellard
{
1996 638c9d91 Fabrice Bellard
    int n, samples_size;
1997 01310af2 Fabrice Bellard
    double ref_clock;
1998 115329f1 Diego Biurrun
1999 01f4895c Michael Niedermayer
    n = 2 * is->audio_st->codec->channels;
2000 638c9d91 Fabrice Bellard
    samples_size = samples_size1;
2001 01310af2 Fabrice Bellard
2002
    /* if not master, then we try to remove or add samples to correct the clock */
2003
    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2004 638c9d91 Fabrice Bellard
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2005
        double diff, avg_diff;
2006 01310af2 Fabrice Bellard
        int wanted_size, min_size, max_size, nb_samples;
2007 115329f1 Diego Biurrun
2008 638c9d91 Fabrice Bellard
        ref_clock = get_master_clock(is);
2009
        diff = get_audio_clock(is) - ref_clock;
2010 115329f1 Diego Biurrun
2011 638c9d91 Fabrice Bellard
        if (diff < AV_NOSYNC_THRESHOLD) {
2012
            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2013
            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2014
                /* not enough measures to have a correct estimate */
2015
                is->audio_diff_avg_count++;
2016
            } else {
2017
                /* estimate the A-V difference */
2018
                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2019
2020
                if (fabs(avg_diff) >= is->audio_diff_threshold) {
2021 01f4895c Michael Niedermayer
                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2022 638c9d91 Fabrice Bellard
                    nb_samples = samples_size / n;
2023 115329f1 Diego Biurrun
2024 638c9d91 Fabrice Bellard
                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2025
                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2026
                    if (wanted_size < min_size)
2027
                        wanted_size = min_size;
2028
                    else if (wanted_size > max_size)
2029
                        wanted_size = max_size;
2030 115329f1 Diego Biurrun
2031 638c9d91 Fabrice Bellard
                    /* add or remove samples to correction the synchro */
2032
                    if (wanted_size < samples_size) {
2033
                        /* remove samples */
2034
                        samples_size = wanted_size;
2035
                    } else if (wanted_size > samples_size) {
2036
                        uint8_t *samples_end, *q;
2037
                        int nb;
2038 115329f1 Diego Biurrun
2039 638c9d91 Fabrice Bellard
                        /* add samples */
2040
                        nb = (samples_size - wanted_size);
2041
                        samples_end = (uint8_t *)samples + samples_size - n;
2042
                        q = samples_end + n;
2043
                        while (nb > 0) {
2044
                            memcpy(q, samples_end, n);
2045
                            q += n;
2046
                            nb -= n;
2047
                        }
2048
                        samples_size = wanted_size;
2049
                    }
2050
                }
2051
#if 0
2052 115329f1 Diego Biurrun
                printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2053
                       diff, avg_diff, samples_size - samples_size1,
2054 638c9d91 Fabrice Bellard
                       is->audio_clock, is->video_clock, is->audio_diff_threshold);
2055
#endif
2056 01310af2 Fabrice Bellard
            }
2057 638c9d91 Fabrice Bellard
        } else {
2058
            /* too big difference : may be initial PTS errors, so
2059
               reset A-V filter */
2060
            is->audio_diff_avg_count = 0;
2061
            is->audio_diff_cum = 0;
2062 01310af2 Fabrice Bellard
        }
2063
    }
2064
2065
    return samples_size;
2066
}
2067
2068
/* decode one audio frame and returns its uncompressed size */
2069 5a4476e2 Peter Ross
static int audio_decode_frame(VideoState *is, double *pts_ptr)
2070 01310af2 Fabrice Bellard
{
2071 bea18375 Thilo Borgmann
    AVPacket *pkt_temp = &is->audio_pkt_temp;
2072 01310af2 Fabrice Bellard
    AVPacket *pkt = &is->audio_pkt;
2073 abdff646 Peter Ross
    AVCodecContext *dec= is->audio_st->codec;
2074 72ea344b Fabrice Bellard
    int n, len1, data_size;
2075 01310af2 Fabrice Bellard
    double pts;
2076
2077
    for(;;) {
2078 72ea344b Fabrice Bellard
        /* NOTE: the audio packet can contain several frames */
2079 bea18375 Thilo Borgmann
        while (pkt_temp->size > 0) {
2080 5a4476e2 Peter Ross
            data_size = sizeof(is->audio_buf1);
2081 bea18375 Thilo Borgmann
            len1 = avcodec_decode_audio3(dec,
2082 5a4476e2 Peter Ross
                                        (int16_t *)is->audio_buf1, &data_size,
2083 bea18375 Thilo Borgmann
                                        pkt_temp);
2084 72ea344b Fabrice Bellard
            if (len1 < 0) {
2085
                /* if error, we skip the frame */
2086 bea18375 Thilo Borgmann
                pkt_temp->size = 0;
2087 01310af2 Fabrice Bellard
                break;
2088 72ea344b Fabrice Bellard
            }
2089 115329f1 Diego Biurrun
2090 bea18375 Thilo Borgmann
            pkt_temp->data += len1;
2091
            pkt_temp->size -= len1;
2092 72ea344b Fabrice Bellard
            if (data_size <= 0)
2093
                continue;
2094 5a4476e2 Peter Ross
2095
            if (dec->sample_fmt != is->audio_src_fmt) {
2096
                if (is->reformat_ctx)
2097
                    av_audio_convert_free(is->reformat_ctx);
2098 5d6e4c16 Stefano Sabatini
                is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2099 5a4476e2 Peter Ross
                                                         dec->sample_fmt, 1, NULL, 0);
2100
                if (!is->reformat_ctx) {
2101
                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2102 ba7d6e79 Stefano Sabatini
                        av_get_sample_fmt_name(dec->sample_fmt),
2103 5d6e4c16 Stefano Sabatini
                        av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2104 5a4476e2 Peter Ross
                        break;
2105
                }
2106
                is->audio_src_fmt= dec->sample_fmt;
2107
            }
2108
2109
            if (is->reformat_ctx) {
2110
                const void *ibuf[6]= {is->audio_buf1};
2111
                void *obuf[6]= {is->audio_buf2};
2112 ba7d6e79 Stefano Sabatini
                int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2113 5a4476e2 Peter Ross
                int ostride[6]= {2};
2114
                int len= data_size/istride[0];
2115
                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2116
                    printf("av_audio_convert() failed\n");
2117
                    break;
2118
                }
2119
                is->audio_buf= is->audio_buf2;
2120
                /* FIXME: existing code assume that data_size equals framesize*channels*2
2121
                          remove this legacy cruft */
2122
                data_size= len*2;
2123
            }else{
2124
                is->audio_buf= is->audio_buf1;
2125
            }
2126
2127 72ea344b Fabrice Bellard
            /* if no pts, then compute it */
2128
            pts = is->audio_clock;
2129
            *pts_ptr = pts;
2130 abdff646 Peter Ross
            n = 2 * dec->channels;
2131 115329f1 Diego Biurrun
            is->audio_clock += (double)data_size /
2132 abdff646 Peter Ross
                (double)(n * dec->sample_rate);
2133 638c9d91 Fabrice Bellard
#if defined(DEBUG_SYNC)
2134 72ea344b Fabrice Bellard
            {
2135
                static double last_clock;
2136
                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2137
                       is->audio_clock - last_clock,
2138
                       is->audio_clock, pts);
2139
                last_clock = is->audio_clock;
2140 01310af2 Fabrice Bellard
            }
2141 72ea344b Fabrice Bellard
#endif
2142
            return data_size;
2143 01310af2 Fabrice Bellard
        }
2144
2145 72ea344b Fabrice Bellard
        /* free the current packet */
2146
        if (pkt->data)
2147 01310af2 Fabrice Bellard
            av_free_packet(pkt);
2148 115329f1 Diego Biurrun
2149 72ea344b Fabrice Bellard
        if (is->paused || is->audioq.abort_request) {
2150
            return -1;
2151
        }
2152 115329f1 Diego Biurrun
2153 01310af2 Fabrice Bellard
        /* read next packet */
2154
        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2155
            return -1;
2156 39c6a118 Michael Niedermayer
        if(pkt->data == flush_pkt.data){
2157 abdff646 Peter Ross
            avcodec_flush_buffers(dec);
2158 39c6a118 Michael Niedermayer
            continue;
2159
        }
2160
2161 bea18375 Thilo Borgmann
        pkt_temp->data = pkt->data;
2162
        pkt_temp->size = pkt->size;
2163 115329f1 Diego Biurrun
2164 72ea344b Fabrice Bellard
        /* if update the audio clock with the pts */
2165
        if (pkt->pts != AV_NOPTS_VALUE) {
2166 c0df9d75 Michael Niedermayer
            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2167 72ea344b Fabrice Bellard
        }
2168 01310af2 Fabrice Bellard
    }
2169
}
2170
2171 638c9d91 Fabrice Bellard
/* get the current audio output buffer size, in samples. With SDL, we
2172
   cannot have a precise information */
2173
static int audio_write_get_buf_size(VideoState *is)
2174 01310af2 Fabrice Bellard
{
2175 b09b580b Ryan Martell
    return is->audio_buf_size - is->audio_buf_index;
2176 01310af2 Fabrice Bellard
}
2177
2178
2179
/* prepare a new audio buffer */
2180 358061f6 Diego Pettenò
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2181 01310af2 Fabrice Bellard
{
2182
    VideoState *is = opaque;
2183
    int audio_size, len1;
2184
    double pts;
2185
2186
    audio_callback_time = av_gettime();
2187 115329f1 Diego Biurrun
2188 01310af2 Fabrice Bellard
    while (len > 0) {
2189
        if (is->audio_buf_index >= is->audio_buf_size) {
2190 5a4476e2 Peter Ross
           audio_size = audio_decode_frame(is, &pts);
2191 01310af2 Fabrice Bellard
           if (audio_size < 0) {
2192
                /* if error, just output silence */
2193 1a1078fa Baptiste Coudurier
               is->audio_buf = is->audio_buf1;
2194 01310af2 Fabrice Bellard
               is->audio_buf_size = 1024;
2195
               memset(is->audio_buf, 0, is->audio_buf_size);
2196
           } else {
2197
               if (is->show_audio)
2198
                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2199 115329f1 Diego Biurrun
               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2200 01310af2 Fabrice Bellard
                                              pts);
2201
               is->audio_buf_size = audio_size;
2202
           }
2203
           is->audio_buf_index = 0;
2204
        }
2205
        len1 = is->audio_buf_size - is->audio_buf_index;
2206
        if (len1 > len)
2207
            len1 = len;
2208
        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2209
        len -= len1;
2210
        stream += len1;
2211
        is->audio_buf_index += len1;
2212
    }
2213
}
2214
2215
/* open a given stream. Return 0 if OK */
2216
static int stream_component_open(VideoState *is, int stream_index)
2217
{
2218
    AVFormatContext *ic = is->ic;
2219 fe74099a Stefano Sabatini
    AVCodecContext *avctx;
2220 01310af2 Fabrice Bellard
    AVCodec *codec;
2221
    SDL_AudioSpec wanted_spec, spec;
2222
2223
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2224
        return -1;
2225 fe74099a Stefano Sabatini
    avctx = ic->streams[stream_index]->codec;
2226 115329f1 Diego Biurrun
2227 01310af2 Fabrice Bellard
    /* prepare audio output */
2228 72415b2a Stefano Sabatini
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2229 fe74099a Stefano Sabatini
        if (avctx->channels > 0) {
2230
            avctx->request_channels = FFMIN(2, avctx->channels);
2231 94eadc8b Andreas Öman
        } else {
2232 fe74099a Stefano Sabatini
            avctx->request_channels = 2;
2233 638c9d91 Fabrice Bellard
        }
2234 01310af2 Fabrice Bellard
    }
2235
2236 fe74099a Stefano Sabatini
    codec = avcodec_find_decoder(avctx->codec_id);
2237
    avctx->debug_mv = debug_mv;
2238
    avctx->debug = debug;
2239
    avctx->workaround_bugs = workaround_bugs;
2240
    avctx->lowres = lowres;
2241
    if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2242
    avctx->idct_algo= idct;
2243
    if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2244
    avctx->skip_frame= skip_frame;
2245
    avctx->skip_idct= skip_idct;
2246
    avctx->skip_loop_filter= skip_loop_filter;
2247
    avctx->error_recognition= error_recognition;
2248
    avctx->error_concealment= error_concealment;
2249
    avcodec_thread_init(avctx, thread_count);
2250
2251 0093ebc2 Michael Niedermayer
    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2252 e43d7a18 Michael Niedermayer
2253 01310af2 Fabrice Bellard
    if (!codec ||
2254 fe74099a Stefano Sabatini
        avcodec_open(avctx, codec) < 0)
2255 01310af2 Fabrice Bellard
        return -1;
2256 51b73087 Justin Ruggles
2257
    /* prepare audio output */
2258 72415b2a Stefano Sabatini
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2259 fe74099a Stefano Sabatini
        wanted_spec.freq = avctx->sample_rate;
2260 51b73087 Justin Ruggles
        wanted_spec.format = AUDIO_S16SYS;
2261 fe74099a Stefano Sabatini
        wanted_spec.channels = avctx->channels;
2262 51b73087 Justin Ruggles
        wanted_spec.silence = 0;
2263
        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2264
        wanted_spec.callback = sdl_audio_callback;
2265
        wanted_spec.userdata = is;
2266
        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2267
            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2268
            return -1;
2269
        }
2270
        is->audio_hw_buf_size = spec.size;
2271 5d6e4c16 Stefano Sabatini
        is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2272 51b73087 Justin Ruggles
    }
2273
2274 3f3fe38d Ronald S. Bultje
    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2275 fe74099a Stefano Sabatini
    switch(avctx->codec_type) {
2276 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_AUDIO:
2277 01310af2 Fabrice Bellard
        is->audio_stream = stream_index;
2278
        is->audio_st = ic->streams[stream_index];
2279
        is->audio_buf_size = 0;
2280
        is->audio_buf_index = 0;
2281 638c9d91 Fabrice Bellard
2282
        /* init averaging filter */
2283
        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2284
        is->audio_diff_avg_count = 0;
2285
        /* since we do not have a precise anough audio fifo fullness,
2286
           we correct audio sync only if larger than this threshold */
2287 fe74099a Stefano Sabatini
        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2288 638c9d91 Fabrice Bellard
2289 01310af2 Fabrice Bellard
        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2290
        packet_queue_init(&is->audioq);
2291 bb270c08 Diego Biurrun
        SDL_PauseAudio(0);
2292 01310af2 Fabrice Bellard
        break;
2293 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_VIDEO:
2294 01310af2 Fabrice Bellard
        is->video_stream = stream_index;
2295
        is->video_st = ic->streams[stream_index];
2296
2297 68aefbe8 Michael Niedermayer
//        is->video_current_pts_time = av_gettime();
2298 638c9d91 Fabrice Bellard
2299 01310af2 Fabrice Bellard
        packet_queue_init(&is->videoq);
2300
        is->video_tid = SDL_CreateThread(video_thread, is);
2301
        break;
2302 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_SUBTITLE:
2303 72ce053b Ian Caulfield
        is->subtitle_stream = stream_index;
2304
        is->subtitle_st = ic->streams[stream_index];
2305
        packet_queue_init(&is->subtitleq);
2306 115329f1 Diego Biurrun
2307 72ce053b Ian Caulfield
        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2308
        break;
2309 01310af2 Fabrice Bellard
    default:
2310
        break;
2311
    }
2312
    return 0;
2313
}
2314
2315
static void stream_component_close(VideoState *is, int stream_index)
2316
{
2317
    AVFormatContext *ic = is->ic;
2318 fe74099a Stefano Sabatini
    AVCodecContext *avctx;
2319 115329f1 Diego Biurrun
2320 72ce053b Ian Caulfield
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2321
        return;
2322 fe74099a Stefano Sabatini
    avctx = ic->streams[stream_index]->codec;
2323 01310af2 Fabrice Bellard
2324 fe74099a Stefano Sabatini
    switch(avctx->codec_type) {
2325 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_AUDIO:
2326 01310af2 Fabrice Bellard
        packet_queue_abort(&is->audioq);
2327
2328
        SDL_CloseAudio();
2329
2330
        packet_queue_end(&is->audioq);
2331 5a4476e2 Peter Ross
        if (is->reformat_ctx)
2332
            av_audio_convert_free(is->reformat_ctx);
2333 bc77fce6 Ramiro Polla
        is->reformat_ctx = NULL;
2334 01310af2 Fabrice Bellard
        break;
2335 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_VIDEO:
2336 01310af2 Fabrice Bellard
        packet_queue_abort(&is->videoq);
2337
2338
        /* note: we also signal this mutex to make sure we deblock the
2339
           video thread in all cases */
2340
        SDL_LockMutex(is->pictq_mutex);
2341
        SDL_CondSignal(is->pictq_cond);
2342
        SDL_UnlockMutex(is->pictq_mutex);
2343
2344
        SDL_WaitThread(is->video_tid, NULL);
2345
2346
        packet_queue_end(&is->videoq);
2347
        break;
2348 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_SUBTITLE:
2349 72ce053b Ian Caulfield
        packet_queue_abort(&is->subtitleq);
2350 115329f1 Diego Biurrun
2351 72ce053b Ian Caulfield
        /* note: we also signal this mutex to make sure we deblock the
2352
           video thread in all cases */
2353
        SDL_LockMutex(is->subpq_mutex);
2354
        is->subtitle_stream_changed = 1;
2355 115329f1 Diego Biurrun
2356 72ce053b Ian Caulfield
        SDL_CondSignal(is->subpq_cond);
2357
        SDL_UnlockMutex(is->subpq_mutex);
2358
2359
        SDL_WaitThread(is->subtitle_tid, NULL);
2360
2361
        packet_queue_end(&is->subtitleq);
2362
        break;
2363 01310af2 Fabrice Bellard
    default:
2364
        break;
2365
    }
2366
2367 3f3fe38d Ronald S. Bultje
    ic->streams[stream_index]->discard = AVDISCARD_ALL;
2368 fe74099a Stefano Sabatini
    avcodec_close(avctx);
2369
    switch(avctx->codec_type) {
2370 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_AUDIO:
2371 01310af2 Fabrice Bellard
        is->audio_st = NULL;
2372
        is->audio_stream = -1;
2373
        break;
2374 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_VIDEO:
2375 01310af2 Fabrice Bellard
        is->video_st = NULL;
2376
        is->video_stream = -1;
2377
        break;
2378 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_SUBTITLE:
2379 72ce053b Ian Caulfield
        is->subtitle_st = NULL;
2380
        is->subtitle_stream = -1;
2381
        break;
2382 01310af2 Fabrice Bellard
    default:
2383
        break;
2384
    }
2385
}
2386
2387 416e3508 Fabrice Bellard
/* since we have only one decoding thread, we can use a global
2388
   variable instead of a thread local variable */
2389
static VideoState *global_video_state;
2390
2391
static int decode_interrupt_cb(void)
2392
{
2393
    return (global_video_state && global_video_state->abort_request);
2394
}
2395 01310af2 Fabrice Bellard
2396
/* this thread gets the stream from the disk or the network */
2397
static int decode_thread(void *arg)
2398
{
2399
    VideoState *is = arg;
2400
    AVFormatContext *ic;
2401 6625a3de Michael Niedermayer
    int err, i, ret;
2402 72415b2a Stefano Sabatini
    int st_index[AVMEDIA_TYPE_NB];
2403
    int st_count[AVMEDIA_TYPE_NB]={0};
2404
    int st_best_packet_count[AVMEDIA_TYPE_NB];
2405 01310af2 Fabrice Bellard
    AVPacket pkt1, *pkt = &pkt1;
2406 61890b02 Fabrice Bellard
    AVFormatParameters params, *ap = &params;
2407 75bb7b0a Michael Niedermayer
    int eof=0;
2408 d834d63b Robert Krüger
    int pkt_in_play_range = 0;
2409 01310af2 Fabrice Bellard
2410 6299a229 Michael Niedermayer
    ic = avformat_alloc_context();
2411
2412 6625a3de Michael Niedermayer
    memset(st_index, -1, sizeof(st_index));
2413 9f7490a0 Michael Niedermayer
    memset(st_best_packet_count, -1, sizeof(st_best_packet_count));
2414 01310af2 Fabrice Bellard
    is->video_stream = -1;
2415
    is->audio_stream = -1;
2416 72ce053b Ian Caulfield
    is->subtitle_stream = -1;
2417 01310af2 Fabrice Bellard
2418 416e3508 Fabrice Bellard
    global_video_state = is;
2419
    url_set_interrupt_cb(decode_interrupt_cb);
2420
2421 61890b02 Fabrice Bellard
    memset(ap, 0, sizeof(*ap));
2422 115329f1 Diego Biurrun
2423 6299a229 Michael Niedermayer
    ap->prealloced_context = 1;
2424 e4b89522 Limin Wang
    ap->width = frame_width;
2425
    ap->height= frame_height;
2426 7e042912 Michael Niedermayer
    ap->time_base= (AVRational){1, 25};
2427 e4b89522 Limin Wang
    ap->pix_fmt = frame_pix_fmt;
2428 7e042912 Michael Niedermayer
2429 0093ebc2 Michael Niedermayer
    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2430 6299a229 Michael Niedermayer
2431 61890b02 Fabrice Bellard
    err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2432 638c9d91 Fabrice Bellard
    if (err < 0) {
2433
        print_error(is->filename, err);
2434
        ret = -1;
2435
        goto fail;
2436
    }
2437 01310af2 Fabrice Bellard
    is->ic = ic;
2438 30bc6613 Michael Niedermayer
2439
    if(genpts)
2440
        ic->flags |= AVFMT_FLAG_GENPTS;
2441
2442 24c07998 Luca Abeni
    err = av_find_stream_info(ic);
2443
    if (err < 0) {
2444
        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2445
        ret = -1;
2446
        goto fail;
2447
    }
2448 899681cd Björn Axelsson
    if(ic->pb)
2449
        ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2450 72ea344b Fabrice Bellard
2451 70a4764d Michael Niedermayer
    if(seek_by_bytes<0)
2452
        seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2453
2454 72ea344b Fabrice Bellard
    /* if seeking requested, we execute it */
2455
    if (start_time != AV_NOPTS_VALUE) {
2456
        int64_t timestamp;
2457
2458
        timestamp = start_time;
2459
        /* add the stream start time */
2460
        if (ic->start_time != AV_NOPTS_VALUE)
2461
            timestamp += ic->start_time;
2462 4ed29207 Michael Niedermayer
        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2463 72ea344b Fabrice Bellard
        if (ret < 0) {
2464 115329f1 Diego Biurrun
            fprintf(stderr, "%s: could not seek to position %0.3f\n",
2465 72ea344b Fabrice Bellard
                    is->filename, (double)timestamp / AV_TIME_BASE);
2466
        }
2467
    }
2468
2469 01310af2 Fabrice Bellard
    for(i = 0; i < ic->nb_streams; i++) {
2470 9f7490a0 Michael Niedermayer
        AVStream *st= ic->streams[i];
2471
        AVCodecContext *avctx = st->codec;
2472 3f3fe38d Ronald S. Bultje
        ic->streams[i]->discard = AVDISCARD_ALL;
2473 72415b2a Stefano Sabatini
        if(avctx->codec_type >= (unsigned)AVMEDIA_TYPE_NB)
2474 8ef94840 David Conrad
            continue;
2475 256ab3ed Michael Niedermayer
        if(st_count[avctx->codec_type]++ != wanted_stream[avctx->codec_type] && wanted_stream[avctx->codec_type] >= 0)
2476
            continue;
2477
2478 9f7490a0 Michael Niedermayer
        if(st_best_packet_count[avctx->codec_type] >= st->codec_info_nb_frames)
2479
            continue;
2480
        st_best_packet_count[avctx->codec_type]= st->codec_info_nb_frames;
2481
2482 fe74099a Stefano Sabatini
        switch(avctx->codec_type) {
2483 72415b2a Stefano Sabatini
        case AVMEDIA_TYPE_AUDIO:
2484 256ab3ed Michael Niedermayer
            if (!audio_disable)
2485 72415b2a Stefano Sabatini
                st_index[AVMEDIA_TYPE_AUDIO] = i;
2486 01310af2 Fabrice Bellard
            break;
2487 72415b2a Stefano Sabatini
        case AVMEDIA_TYPE_VIDEO:
2488
        case AVMEDIA_TYPE_SUBTITLE:
2489 256ab3ed Michael Niedermayer
            if (!video_disable)
2490
                st_index[avctx->codec_type] = i;
2491 16a59a7b Björn Axelsson
            break;
2492 01310af2 Fabrice Bellard
        default:
2493
            break;
2494
        }
2495
    }
2496
    if (show_status) {
2497
        dump_format(ic, 0, is->filename, 0);
2498
    }
2499
2500
    /* open the streams */
2501 72415b2a Stefano Sabatini
    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2502
        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2503 01310af2 Fabrice Bellard
    }
2504
2505 077a8d61 Michael Niedermayer
    ret=-1;
2506 72415b2a Stefano Sabatini
    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2507
        ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2508 077a8d61 Michael Niedermayer
    }
2509 d38c9e7a Michael Niedermayer
    is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2510 077a8d61 Michael Niedermayer
    if(ret<0) {
2511 01310af2 Fabrice Bellard
        if (!display_disable)
2512 bf8ae197 Michael Niedermayer
            is->show_audio = 2;
2513 01310af2 Fabrice Bellard
    }
2514
2515 72415b2a Stefano Sabatini
    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2516
        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2517 16a59a7b Björn Axelsson
    }
2518
2519 01310af2 Fabrice Bellard
    if (is->video_stream < 0 && is->audio_stream < 0) {
2520 638c9d91 Fabrice Bellard
        fprintf(stderr, "%s: could not open codecs\n", is->filename);
2521
        ret = -1;
2522 01310af2 Fabrice Bellard
        goto fail;
2523
    }
2524
2525
    for(;;) {
2526
        if (is->abort_request)
2527
            break;
2528 416e3508 Fabrice Bellard
        if (is->paused != is->last_paused) {
2529
            is->last_paused = is->paused;
2530 72ea344b Fabrice Bellard
            if (is->paused)
2531 f5668147 Michael Niedermayer
                is->read_pause_return= av_read_pause(ic);
2532 72ea344b Fabrice Bellard
            else
2533
                av_read_play(ic);
2534 416e3508 Fabrice Bellard
        }
2535 2f642393 Aurelien Jacobs
#if CONFIG_RTSP_DEMUXER
2536
        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2537 416e3508 Fabrice Bellard
            /* wait 10 ms to avoid trying to get another packet */
2538
            /* XXX: horrible */
2539
            SDL_Delay(10);
2540
            continue;
2541
        }
2542 400738b1 Michael Niedermayer
#endif
2543 72ea344b Fabrice Bellard
        if (is->seek_req) {
2544 8e606cc8 Michael Niedermayer
            int64_t seek_target= is->seek_pos;
2545 4ed29207 Michael Niedermayer
            int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2546
            int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2547
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
2548
//      of the seek_pos/seek_rel variables
2549 8e606cc8 Michael Niedermayer
2550 4ed29207 Michael Niedermayer
            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2551 72ea344b Fabrice Bellard
            if (ret < 0) {
2552
                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2553 e6c0297f Michael Niedermayer
            }else{
2554
                if (is->audio_stream >= 0) {
2555
                    packet_queue_flush(&is->audioq);
2556 39c6a118 Michael Niedermayer
                    packet_queue_put(&is->audioq, &flush_pkt);
2557 e6c0297f Michael Niedermayer
                }
2558 72ce053b Ian Caulfield
                if (is->subtitle_stream >= 0) {
2559
                    packet_queue_flush(&is->subtitleq);
2560 39c6a118 Michael Niedermayer
                    packet_queue_put(&is->subtitleq, &flush_pkt);
2561 72ce053b Ian Caulfield
                }
2562 e6c0297f Michael Niedermayer
                if (is->video_stream >= 0) {
2563
                    packet_queue_flush(&is->videoq);
2564 39c6a118 Michael Niedermayer
                    packet_queue_put(&is->videoq, &flush_pkt);
2565 e6c0297f Michael Niedermayer
                }
2566 72ea344b Fabrice Bellard
            }
2567
            is->seek_req = 0;
2568 e45aeb38 Michael Niedermayer
            eof= 0;
2569 72ea344b Fabrice Bellard
        }
2570 416e3508 Fabrice Bellard
2571 01310af2 Fabrice Bellard
        /* if the queue are full, no need to read more */
2572 79ee4683 Michael Niedermayer
        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2573
            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2574
                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2575
                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2576 01310af2 Fabrice Bellard
            /* wait 10 ms */
2577
            SDL_Delay(10);
2578
            continue;
2579
        }
2580 27d97fde Michael Chinen
        if(eof) {
2581 9dc41767 Michael Niedermayer
            if(is->video_stream >= 0){
2582 26534fe8 Michael Niedermayer
                av_init_packet(pkt);
2583
                pkt->data=NULL;
2584
                pkt->size=0;
2585
                pkt->stream_index= is->video_stream;
2586
                packet_queue_put(&is->videoq, pkt);
2587 9dc41767 Michael Niedermayer
            }
2588 b4083171 Michael Niedermayer
            SDL_Delay(10);
2589 1922c0a7 Robert Krüger
            if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2590
                if(loop!=1 && (!loop || --loop)){
2591
                    stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2592
                }else if(autoexit){
2593
                    ret=AVERROR_EOF;
2594
                    goto fail;
2595
                }
2596 2d1653b0 Michael Niedermayer
            }
2597 600a331c Michael Niedermayer
            continue;
2598
        }
2599 72ea344b Fabrice Bellard
        ret = av_read_frame(ic, pkt);
2600 01310af2 Fabrice Bellard
        if (ret < 0) {
2601 27d97fde Michael Chinen
            if (ret == AVERROR_EOF || url_feof(ic->pb))
2602 75bb7b0a Michael Niedermayer
                eof=1;
2603
            if (url_ferror(ic->pb))
2604 bb270c08 Diego Biurrun
                break;
2605 75bb7b0a Michael Niedermayer
            SDL_Delay(100); /* wait for user event */
2606
            continue;
2607 01310af2 Fabrice Bellard
        }
2608 d834d63b Robert Krüger
        /* check if packet is in play range specified by user, then queue, otherwise discard */
2609
        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2610
                (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2611
                av_q2d(ic->streams[pkt->stream_index]->time_base) -
2612
                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2613
                <= ((double)duration/1000000);
2614
        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2615 01310af2 Fabrice Bellard
            packet_queue_put(&is->audioq, pkt);
2616 d834d63b Robert Krüger
        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2617 01310af2 Fabrice Bellard
            packet_queue_put(&is->videoq, pkt);
2618 d834d63b Robert Krüger
        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2619 72ce053b Ian Caulfield
            packet_queue_put(&is->subtitleq, pkt);
2620 01310af2 Fabrice Bellard
        } else {
2621
            av_free_packet(pkt);
2622
        }
2623
    }
2624
    /* wait until the end */
2625
    while (!is->abort_request) {
2626
        SDL_Delay(100);
2627
    }
2628
2629 638c9d91 Fabrice Bellard
    ret = 0;
2630 01310af2 Fabrice Bellard
 fail:
2631 416e3508 Fabrice Bellard
    /* disable interrupting */
2632
    global_video_state = NULL;
2633
2634 01310af2 Fabrice Bellard
    /* close each stream */
2635
    if (is->audio_stream >= 0)
2636
        stream_component_close(is, is->audio_stream);
2637
    if (is->video_stream >= 0)
2638
        stream_component_close(is, is->video_stream);
2639 72ce053b Ian Caulfield
    if (is->subtitle_stream >= 0)
2640
        stream_component_close(is, is->subtitle_stream);
2641 638c9d91 Fabrice Bellard
    if (is->ic) {
2642
        av_close_input_file(is->ic);
2643
        is->ic = NULL; /* safety */
2644
    }
2645 416e3508 Fabrice Bellard
    url_set_interrupt_cb(NULL);
2646
2647 638c9d91 Fabrice Bellard
    if (ret != 0) {
2648
        SDL_Event event;
2649 115329f1 Diego Biurrun
2650 638c9d91 Fabrice Bellard
        event.type = FF_QUIT_EVENT;
2651
        event.user.data1 = is;
2652
        SDL_PushEvent(&event);
2653
    }
2654 01310af2 Fabrice Bellard
    return 0;
2655
}
2656
2657 638c9d91 Fabrice Bellard
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2658 01310af2 Fabrice Bellard
{
2659
    VideoState *is;
2660
2661
    is = av_mallocz(sizeof(VideoState));
2662
    if (!is)
2663
        return NULL;
2664 f7d78f36 Måns Rullgård
    av_strlcpy(is->filename, filename, sizeof(is->filename));
2665 638c9d91 Fabrice Bellard
    is->iformat = iformat;
2666 01310af2 Fabrice Bellard
    is->ytop = 0;
2667
    is->xleft = 0;
2668
2669
    /* start video display */
2670
    is->pictq_mutex = SDL_CreateMutex();
2671
    is->pictq_cond = SDL_CreateCond();
2672 115329f1 Diego Biurrun
2673 72ce053b Ian Caulfield
    is->subpq_mutex = SDL_CreateMutex();
2674
    is->subpq_cond = SDL_CreateCond();
2675 115329f1 Diego Biurrun
2676 638c9d91 Fabrice Bellard
    is->av_sync_type = av_sync_type;
2677 01310af2 Fabrice Bellard
    is->parse_tid = SDL_CreateThread(decode_thread, is);
2678
    if (!is->parse_tid) {
2679
        av_free(is);
2680
        return NULL;
2681
    }
2682
    return is;
2683
}
2684
2685 7b49ce2e Stefan Huehner
static void stream_cycle_channel(VideoState *is, int codec_type)
2686 638c9d91 Fabrice Bellard
{
2687
    AVFormatContext *ic = is->ic;
2688
    int start_index, stream_index;
2689
    AVStream *st;
2690
2691 72415b2a Stefano Sabatini
    if (codec_type == AVMEDIA_TYPE_VIDEO)
2692 638c9d91 Fabrice Bellard
        start_index = is->video_stream;
2693 72415b2a Stefano Sabatini
    else if (codec_type == AVMEDIA_TYPE_AUDIO)
2694 638c9d91 Fabrice Bellard
        start_index = is->audio_stream;
2695 72ce053b Ian Caulfield
    else
2696
        start_index = is->subtitle_stream;
2697 72415b2a Stefano Sabatini
    if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2698 638c9d91 Fabrice Bellard
        return;
2699
    stream_index = start_index;
2700
    for(;;) {
2701
        if (++stream_index >= is->ic->nb_streams)
2702 72ce053b Ian Caulfield
        {
2703 72415b2a Stefano Sabatini
            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2704 72ce053b Ian Caulfield
            {
2705
                stream_index = -1;
2706
                goto the_end;
2707
            } else
2708
                stream_index = 0;
2709
        }
2710 638c9d91 Fabrice Bellard
        if (stream_index == start_index)
2711
            return;
2712
        st = ic->streams[stream_index];
2713 01f4895c Michael Niedermayer
        if (st->codec->codec_type == codec_type) {
2714 638c9d91 Fabrice Bellard
            /* check that parameters are OK */
2715
            switch(codec_type) {
2716 72415b2a Stefano Sabatini
            case AVMEDIA_TYPE_AUDIO:
2717 01f4895c Michael Niedermayer
                if (st->codec->sample_rate != 0 &&
2718
                    st->codec->channels != 0)
2719 638c9d91 Fabrice Bellard
                    goto the_end;
2720
                break;
2721 72415b2a Stefano Sabatini
            case AVMEDIA_TYPE_VIDEO:
2722
            case AVMEDIA_TYPE_SUBTITLE:
2723 638c9d91 Fabrice Bellard
                goto the_end;
2724
            default:
2725
                break;
2726
            }
2727
        }
2728
    }
2729
 the_end:
2730
    stream_component_close(is, start_index);
2731
    stream_component_open(is, stream_index);
2732
}
2733
2734
2735 7b49ce2e Stefan Huehner
static void toggle_full_screen(void)
2736 01310af2 Fabrice Bellard
{
2737
    is_full_screen = !is_full_screen;
2738 29f3b38a Måns Rullgård
    if (!fs_screen_width) {
2739
        /* use default SDL method */
2740 fb84155b Michael Niedermayer
//        SDL_WM_ToggleFullScreen(screen);
2741 01310af2 Fabrice Bellard
    }
2742 fb84155b Michael Niedermayer
    video_open(cur_stream);
2743 01310af2 Fabrice Bellard
}
2744
2745 7b49ce2e Stefan Huehner
static void toggle_pause(void)
2746 01310af2 Fabrice Bellard
{
2747
    if (cur_stream)
2748
        stream_pause(cur_stream);
2749 bba04f1e Wolfgang Hesseler
    step = 0;
2750
}
2751
2752 7b49ce2e Stefan Huehner
static void step_to_next_frame(void)
2753 bba04f1e Wolfgang Hesseler
{
2754
    if (cur_stream) {
2755 19cc524a Craig Nicol
        /* if the stream is paused unpause it, then step */
2756 bba04f1e Wolfgang Hesseler
        if (cur_stream->paused)
2757 19cc524a Craig Nicol
            stream_pause(cur_stream);
2758 bba04f1e Wolfgang Hesseler
    }
2759
    step = 1;
2760 01310af2 Fabrice Bellard
}
2761
2762 7b49ce2e Stefan Huehner
static void toggle_audio_display(void)
2763 01310af2 Fabrice Bellard
{
2764
    if (cur_stream) {
2765 f5968788 Michael Niedermayer
        int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2766 12eeda34 Michael Niedermayer
        cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2767 f5968788 Michael Niedermayer
        fill_rectangle(screen,
2768
                    cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2769
                    bgcolor);
2770
        SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2771 01310af2 Fabrice Bellard
    }
2772
}
2773
2774
/* handle an event sent by the GUI */
2775 7b49ce2e Stefan Huehner
static void event_loop(void)
2776 01310af2 Fabrice Bellard
{
2777
    SDL_Event event;
2778 a11d11aa Michel Bardiaux
    double incr, pos, frac;
2779 01310af2 Fabrice Bellard
2780
    for(;;) {
2781 d52ec002 Michael Niedermayer
        double x;
2782 01310af2 Fabrice Bellard
        SDL_WaitEvent(&event);
2783
        switch(event.type) {
2784
        case SDL_KEYDOWN:
2785 066ce8c9 Alexei Svitkine
            if (exit_on_keydown) {
2786
                do_exit();
2787
                break;
2788
            }
2789 01310af2 Fabrice Bellard
            switch(event.key.keysym.sym) {
2790
            case SDLK_ESCAPE:
2791
            case SDLK_q:
2792
                do_exit();
2793
                break;
2794
            case SDLK_f:
2795
                toggle_full_screen();
2796
                break;
2797
            case SDLK_p:
2798
            case SDLK_SPACE:
2799
                toggle_pause();
2800
                break;
2801 bba04f1e Wolfgang Hesseler
            case SDLK_s: //S: Step to next frame
2802
                step_to_next_frame();
2803
                break;
2804 01310af2 Fabrice Bellard
            case SDLK_a:
2805 115329f1 Diego Biurrun
                if (cur_stream)
2806 72415b2a Stefano Sabatini
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2807 638c9d91 Fabrice Bellard
                break;
2808
            case SDLK_v:
2809 115329f1 Diego Biurrun
                if (cur_stream)
2810 72415b2a Stefano Sabatini
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2811 638c9d91 Fabrice Bellard
                break;
2812 72ce053b Ian Caulfield
            case SDLK_t:
2813 115329f1 Diego Biurrun
                if (cur_stream)
2814 72415b2a Stefano Sabatini
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2815 72ce053b Ian Caulfield
                break;
2816 638c9d91 Fabrice Bellard
            case SDLK_w:
2817 01310af2 Fabrice Bellard
                toggle_audio_display();
2818
                break;
2819 72ea344b Fabrice Bellard
            case SDLK_LEFT:
2820
                incr = -10.0;
2821
                goto do_seek;
2822
            case SDLK_RIGHT:
2823
                incr = 10.0;
2824
                goto do_seek;
2825
            case SDLK_UP:
2826
                incr = 60.0;
2827
                goto do_seek;