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1 01310af2 Fabrice Bellard
/*
2 89b503b5 Diego Biurrun
 * ffplay : Simple Media Player based on the Libav libraries
3 01310af2 Fabrice Bellard
 * Copyright (c) 2003 Fabrice Bellard
4
 *
5 2912e87a Mans Rullgard
 * This file is part of Libav.
6 b78e7197 Diego Biurrun
 *
7 2912e87a Mans Rullgard
 * Libav 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 2912e87a Mans Rullgard
 * Libav 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 2912e87a Mans Rullgard
 * License along with Libav; 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>
27
#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 737eb597 Reinhard Tartler
#include "libavutil/imgutils.h"
32
#include "libavutil/parseutils.h"
33
#include "libavutil/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 41d0eb1c Anton Khirnov
#include "libavutil/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 89b503b5 Diego Biurrun
const char program_name[] = "ffplay";
59 ea9c581f Stefano Sabatini
const int program_birth_year = 2003;
60 4cfac5bc Stefano Sabatini
61 13156f40 Stefano Sabatini
//#define DEBUG
62 638c9d91 Fabrice Bellard
//#define DEBUG_SYNC
63
64 79ee4683 Michael Niedermayer
#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
65
#define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
66
#define MIN_FRAMES 5
67 01310af2 Fabrice Bellard
68 638c9d91 Fabrice Bellard
/* SDL audio buffer size, in samples. Should be small to have precise
69
   A/V sync as SDL does not have hardware buffer fullness info. */
70
#define SDL_AUDIO_BUFFER_SIZE 1024
71
72
/* no AV sync correction is done if below the AV sync threshold */
73 7e0140cb Michael Niedermayer
#define AV_SYNC_THRESHOLD 0.01
74 638c9d91 Fabrice Bellard
/* no AV correction is done if too big error */
75
#define AV_NOSYNC_THRESHOLD 10.0
76
77 d38c9e7a Michael Niedermayer
#define FRAME_SKIP_FACTOR 0.05
78
79 638c9d91 Fabrice Bellard
/* maximum audio speed change to get correct sync */
80
#define SAMPLE_CORRECTION_PERCENT_MAX 10
81
82
/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
83
#define AUDIO_DIFF_AVG_NB   20
84
85 01310af2 Fabrice Bellard
/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
86
#define SAMPLE_ARRAY_SIZE (2*65536)
87
88 03ae87a3 Luca Abeni
static int sws_flags = SWS_BICUBIC;
89
90 01310af2 Fabrice Bellard
typedef struct PacketQueue {
91
    AVPacketList *first_pkt, *last_pkt;
92
    int nb_packets;
93
    int size;
94
    int abort_request;
95
    SDL_mutex *mutex;
96
    SDL_cond *cond;
97
} PacketQueue;
98
99 562f382c Michael Niedermayer
#define VIDEO_PICTURE_QUEUE_SIZE 2
100 72ce053b Ian Caulfield
#define SUBPICTURE_QUEUE_SIZE 4
101 01310af2 Fabrice Bellard
102
typedef struct VideoPicture {
103 267e9dfa Michael Niedermayer
    double pts;                                  ///<presentation time stamp for this picture
104 d38c9e7a Michael Niedermayer
    double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
105 1a620dd7 Michael Niedermayer
    int64_t pos;                                 ///<byte position in file
106 01310af2 Fabrice Bellard
    SDL_Overlay *bmp;
107
    int width, height; /* source height & width */
108
    int allocated;
109 917d2bb3 Michael Niedermayer
    enum PixelFormat pix_fmt;
110
111
#if CONFIG_AVFILTER
112 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef *picref;
113 917d2bb3 Michael Niedermayer
#endif
114 01310af2 Fabrice Bellard
} VideoPicture;
115
116 72ce053b Ian Caulfield
typedef struct SubPicture {
117
    double pts; /* presentation time stamp for this picture */
118
    AVSubtitle sub;
119
} SubPicture;
120
121 01310af2 Fabrice Bellard
enum {
122
    AV_SYNC_AUDIO_MASTER, /* default choice */
123
    AV_SYNC_VIDEO_MASTER,
124 638c9d91 Fabrice Bellard
    AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
125 01310af2 Fabrice Bellard
};
126
127
typedef struct VideoState {
128
    SDL_Thread *parse_tid;
129
    SDL_Thread *video_tid;
130 d38c9e7a Michael Niedermayer
    SDL_Thread *refresh_tid;
131 638c9d91 Fabrice Bellard
    AVInputFormat *iformat;
132 01310af2 Fabrice Bellard
    int no_background;
133
    int abort_request;
134
    int paused;
135 416e3508 Fabrice Bellard
    int last_paused;
136 72ea344b Fabrice Bellard
    int seek_req;
137 3ba1438d Michael Niedermayer
    int seek_flags;
138 72ea344b Fabrice Bellard
    int64_t seek_pos;
139 4ed29207 Michael Niedermayer
    int64_t seek_rel;
140 f5668147 Michael Niedermayer
    int read_pause_return;
141 01310af2 Fabrice Bellard
    AVFormatContext *ic;
142
    int dtg_active_format;
143
144
    int audio_stream;
145 115329f1 Diego Biurrun
146 01310af2 Fabrice Bellard
    int av_sync_type;
147 638c9d91 Fabrice Bellard
    double external_clock; /* external clock base */
148
    int64_t external_clock_time;
149 115329f1 Diego Biurrun
150 638c9d91 Fabrice Bellard
    double audio_clock;
151
    double audio_diff_cum; /* used for AV difference average computation */
152
    double audio_diff_avg_coef;
153
    double audio_diff_threshold;
154
    int audio_diff_avg_count;
155 01310af2 Fabrice Bellard
    AVStream *audio_st;
156
    PacketQueue audioq;
157
    int audio_hw_buf_size;
158
    /* samples output by the codec. we reserve more space for avsync
159
       compensation */
160 c6727809 Måns Rullgård
    DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
161
    DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
162 5a4476e2 Peter Ross
    uint8_t *audio_buf;
163 7fea94ce Zdenek Kabelac
    unsigned int audio_buf_size; /* in bytes */
164 01310af2 Fabrice Bellard
    int audio_buf_index; /* in bytes */
165 bea18375 Thilo Borgmann
    AVPacket audio_pkt_temp;
166 01310af2 Fabrice Bellard
    AVPacket audio_pkt;
167 5d6e4c16 Stefano Sabatini
    enum AVSampleFormat audio_src_fmt;
168 5a4476e2 Peter Ross
    AVAudioConvert *reformat_ctx;
169 115329f1 Diego Biurrun
170 01310af2 Fabrice Bellard
    int show_audio; /* if true, display audio samples */
171
    int16_t sample_array[SAMPLE_ARRAY_SIZE];
172
    int sample_array_index;
173 5e0257e3 Fabrice Bellard
    int last_i_start;
174 166621ab Måns Rullgård
    RDFTContext *rdft;
175 12eeda34 Michael Niedermayer
    int rdft_bits;
176 7dbbf6a1 Måns Rullgård
    FFTSample *rdft_data;
177 12eeda34 Michael Niedermayer
    int xpos;
178 115329f1 Diego Biurrun
179 72ce053b Ian Caulfield
    SDL_Thread *subtitle_tid;
180
    int subtitle_stream;
181
    int subtitle_stream_changed;
182
    AVStream *subtitle_st;
183
    PacketQueue subtitleq;
184
    SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
185
    int subpq_size, subpq_rindex, subpq_windex;
186
    SDL_mutex *subpq_mutex;
187
    SDL_cond *subpq_cond;
188 115329f1 Diego Biurrun
189 638c9d91 Fabrice Bellard
    double frame_timer;
190
    double frame_last_pts;
191
    double frame_last_delay;
192 115329f1 Diego Biurrun
    double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
193 01310af2 Fabrice Bellard
    int video_stream;
194
    AVStream *video_st;
195
    PacketQueue videoq;
196 267e9dfa Michael Niedermayer
    double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
197 68aefbe8 Michael Niedermayer
    double video_current_pts_drift;              ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
198 1a620dd7 Michael Niedermayer
    int64_t video_current_pos;                   ///<current displayed file pos
199 01310af2 Fabrice Bellard
    VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
200
    int pictq_size, pictq_rindex, pictq_windex;
201
    SDL_mutex *pictq_mutex;
202
    SDL_cond *pictq_cond;
203 917d2bb3 Michael Niedermayer
#if !CONFIG_AVFILTER
204 3ac56e28 Martin Storsjö
    struct SwsContext *img_convert_ctx;
205 917d2bb3 Michael Niedermayer
#endif
206 115329f1 Diego Biurrun
207 01310af2 Fabrice Bellard
    //    QETimer *video_timer;
208
    char filename[1024];
209
    int width, height, xleft, ytop;
210 41db429d Michael Niedermayer
211 7a8bfa5d Alexander Strange
    PtsCorrectionContext pts_ctx;
212 41db429d Michael Niedermayer
213 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
214
    AVFilterContext *out_video_filter;          ///<the last filter in the video chain
215
#endif
216 d38c9e7a Michael Niedermayer
217
    float skip_frames;
218
    float skip_frames_index;
219
    int refresh;
220 01310af2 Fabrice Bellard
} VideoState;
221
222 358061f6 Diego Pettenò
static void show_help(void);
223 638c9d91 Fabrice Bellard
static int audio_write_get_buf_size(VideoState *is);
224 01310af2 Fabrice Bellard
225
/* options specified by the user */
226
static AVInputFormat *file_iformat;
227
static const char *input_filename;
228 076db5ed Robert Krüger
static const char *window_title;
229 01310af2 Fabrice Bellard
static int fs_screen_width;
230
static int fs_screen_height;
231 fccb19e3 Michael Niedermayer
static int screen_width = 0;
232
static int screen_height = 0;
233 e4b89522 Limin Wang
static int frame_width = 0;
234
static int frame_height = 0;
235
static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
236 01310af2 Fabrice Bellard
static int audio_disable;
237
static int video_disable;
238 72415b2a Stefano Sabatini
static int wanted_stream[AVMEDIA_TYPE_NB]={
239
    [AVMEDIA_TYPE_AUDIO]=-1,
240
    [AVMEDIA_TYPE_VIDEO]=-1,
241
    [AVMEDIA_TYPE_SUBTITLE]=-1,
242 5b369983 Michael Niedermayer
};
243 70a4764d Michael Niedermayer
static int seek_by_bytes=-1;
244 01310af2 Fabrice Bellard
static int display_disable;
245 1e1a0b18 Baptiste Coudurier
static int show_status = 1;
246 638c9d91 Fabrice Bellard
static int av_sync_type = AV_SYNC_AUDIO_MASTER;
247 72ea344b Fabrice Bellard
static int64_t start_time = AV_NOPTS_VALUE;
248 d834d63b Robert Krüger
static int64_t duration = AV_NOPTS_VALUE;
249 e26a8335 Wolfgang Hesseler
static int debug = 0;
250 0c9bbaec Wolfgang Hesseler
static int debug_mv = 0;
251 bba04f1e Wolfgang Hesseler
static int step = 0;
252 c62c07d3 Michael Niedermayer
static int thread_count = 1;
253 6387c3e6 Michael Niedermayer
static int workaround_bugs = 1;
254 6fc5b059 Michael Niedermayer
static int fast = 0;
255 30bc6613 Michael Niedermayer
static int genpts = 0;
256 178fcca8 Michael Niedermayer
static int lowres = 0;
257
static int idct = FF_IDCT_AUTO;
258 8c3eba7c Michael Niedermayer
static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
259
static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
260
static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
261 047599a4 Michael Niedermayer
static int error_recognition = FF_ER_CAREFUL;
262 1b51e051 Michael Niedermayer
static int error_concealment = 3;
263 41db429d Michael Niedermayer
static int decoder_reorder_pts= -1;
264 2d1653b0 Michael Niedermayer
static int autoexit;
265 066ce8c9 Alexei Svitkine
static int exit_on_keydown;
266
static int exit_on_mousedown;
267 1922c0a7 Robert Krüger
static int loop=1;
268 d38c9e7a Michael Niedermayer
static int framedrop=1;
269 2b3da32f Michael Niedermayer
270
static int rdftspeed=20;
271 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
272
static char *vfilters = NULL;
273
#endif
274 01310af2 Fabrice Bellard
275
/* current context */
276
static int is_full_screen;
277
static VideoState *cur_stream;
278 5e0257e3 Fabrice Bellard
static int64_t audio_callback_time;
279 01310af2 Fabrice Bellard
280 2c676c33 Diego Pettenò
static AVPacket flush_pkt;
281 39c6a118 Michael Niedermayer
282 01310af2 Fabrice Bellard
#define FF_ALLOC_EVENT   (SDL_USEREVENT)
283
#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
284 638c9d91 Fabrice Bellard
#define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
285 01310af2 Fabrice Bellard
286 2c676c33 Diego Pettenò
static SDL_Surface *screen;
287 01310af2 Fabrice Bellard
288 515bd00e Michael Niedermayer
static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
289
290 01310af2 Fabrice Bellard
/* packet queue handling */
291
static void packet_queue_init(PacketQueue *q)
292
{
293
    memset(q, 0, sizeof(PacketQueue));
294
    q->mutex = SDL_CreateMutex();
295
    q->cond = SDL_CreateCond();
296 515bd00e Michael Niedermayer
    packet_queue_put(q, &flush_pkt);
297 01310af2 Fabrice Bellard
}
298
299 72ea344b Fabrice Bellard
static void packet_queue_flush(PacketQueue *q)
300 01310af2 Fabrice Bellard
{
301
    AVPacketList *pkt, *pkt1;
302
303 687fae2b Ivan Wong
    SDL_LockMutex(q->mutex);
304 01310af2 Fabrice Bellard
    for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
305
        pkt1 = pkt->next;
306
        av_free_packet(&pkt->pkt);
307 da6c4573 Michael Niedermayer
        av_freep(&pkt);
308 01310af2 Fabrice Bellard
    }
309 72ea344b Fabrice Bellard
    q->last_pkt = NULL;
310
    q->first_pkt = NULL;
311
    q->nb_packets = 0;
312
    q->size = 0;
313 687fae2b Ivan Wong
    SDL_UnlockMutex(q->mutex);
314 72ea344b Fabrice Bellard
}
315
316
static void packet_queue_end(PacketQueue *q)
317
{
318
    packet_queue_flush(q);
319 01310af2 Fabrice Bellard
    SDL_DestroyMutex(q->mutex);
320
    SDL_DestroyCond(q->cond);
321
}
322
323
static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
324
{
325
    AVPacketList *pkt1;
326
327 72ea344b Fabrice Bellard
    /* duplicate the packet */
328 39c6a118 Michael Niedermayer
    if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
329 72ea344b Fabrice Bellard
        return -1;
330 115329f1 Diego Biurrun
331 01310af2 Fabrice Bellard
    pkt1 = av_malloc(sizeof(AVPacketList));
332
    if (!pkt1)
333
        return -1;
334
    pkt1->pkt = *pkt;
335
    pkt1->next = NULL;
336
337 72ea344b Fabrice Bellard
338 01310af2 Fabrice Bellard
    SDL_LockMutex(q->mutex);
339
340
    if (!q->last_pkt)
341
342
        q->first_pkt = pkt1;
343
    else
344
        q->last_pkt->next = pkt1;
345
    q->last_pkt = pkt1;
346
    q->nb_packets++;
347 7b776589 Aurelien Jacobs
    q->size += pkt1->pkt.size + sizeof(*pkt1);
348 01310af2 Fabrice Bellard
    /* XXX: should duplicate packet data in DV case */
349
    SDL_CondSignal(q->cond);
350
351
    SDL_UnlockMutex(q->mutex);
352
    return 0;
353
}
354
355
static void packet_queue_abort(PacketQueue *q)
356
{
357
    SDL_LockMutex(q->mutex);
358
359
    q->abort_request = 1;
360 115329f1 Diego Biurrun
361 01310af2 Fabrice Bellard
    SDL_CondSignal(q->cond);
362
363
    SDL_UnlockMutex(q->mutex);
364
}
365
366
/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
367
static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
368
{
369
    AVPacketList *pkt1;
370
    int ret;
371
372
    SDL_LockMutex(q->mutex);
373
374
    for(;;) {
375
        if (q->abort_request) {
376
            ret = -1;
377
            break;
378
        }
379 115329f1 Diego Biurrun
380 01310af2 Fabrice Bellard
        pkt1 = q->first_pkt;
381
        if (pkt1) {
382
            q->first_pkt = pkt1->next;
383
            if (!q->first_pkt)
384
                q->last_pkt = NULL;
385
            q->nb_packets--;
386 7b776589 Aurelien Jacobs
            q->size -= pkt1->pkt.size + sizeof(*pkt1);
387 01310af2 Fabrice Bellard
            *pkt = pkt1->pkt;
388
            av_free(pkt1);
389
            ret = 1;
390
            break;
391
        } else if (!block) {
392
            ret = 0;
393
            break;
394
        } else {
395
            SDL_CondWait(q->cond, q->mutex);
396
        }
397
    }
398
    SDL_UnlockMutex(q->mutex);
399
    return ret;
400
}
401
402 115329f1 Diego Biurrun
static inline void fill_rectangle(SDL_Surface *screen,
403 01310af2 Fabrice Bellard
                                  int x, int y, int w, int h, int color)
404
{
405
    SDL_Rect rect;
406
    rect.x = x;
407
    rect.y = y;
408
    rect.w = w;
409
    rect.h = h;
410
    SDL_FillRect(screen, &rect, color);
411
}
412
413
#if 0
414
/* draw only the border of a rectangle */
415
void fill_border(VideoState *s, int x, int y, int w, int h, int color)
416
{
417
    int w1, w2, h1, h2;
418

419
    /* fill the background */
420
    w1 = x;
421
    if (w1 < 0)
422
        w1 = 0;
423
    w2 = s->width - (x + w);
424
    if (w2 < 0)
425
        w2 = 0;
426
    h1 = y;
427
    if (h1 < 0)
428
        h1 = 0;
429
    h2 = s->height - (y + h);
430
    if (h2 < 0)
431
        h2 = 0;
432 115329f1 Diego Biurrun
    fill_rectangle(screen,
433
                   s->xleft, s->ytop,
434
                   w1, s->height,
435 01310af2 Fabrice Bellard
                   color);
436 115329f1 Diego Biurrun
    fill_rectangle(screen,
437
                   s->xleft + s->width - w2, s->ytop,
438
                   w2, s->height,
439 01310af2 Fabrice Bellard
                   color);
440 115329f1 Diego Biurrun
    fill_rectangle(screen,
441
                   s->xleft + w1, s->ytop,
442
                   s->width - w1 - w2, h1,
443 01310af2 Fabrice Bellard
                   color);
444 115329f1 Diego Biurrun
    fill_rectangle(screen,
445 01310af2 Fabrice Bellard
                   s->xleft + w1, s->ytop + s->height - h2,
446
                   s->width - w1 - w2, h2,
447
                   color);
448
}
449
#endif
450
451 72ce053b Ian Caulfield
#define ALPHA_BLEND(a, oldp, newp, s)\
452
((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
453
454
#define RGBA_IN(r, g, b, a, s)\
455
{\
456
    unsigned int v = ((const uint32_t *)(s))[0];\
457
    a = (v >> 24) & 0xff;\
458
    r = (v >> 16) & 0xff;\
459
    g = (v >> 8) & 0xff;\
460
    b = v & 0xff;\
461
}
462
463
#define YUVA_IN(y, u, v, a, s, pal)\
464
{\
465 57cf99f2 Reimar Döffinger
    unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
466 72ce053b Ian Caulfield
    a = (val >> 24) & 0xff;\
467
    y = (val >> 16) & 0xff;\
468
    u = (val >> 8) & 0xff;\
469
    v = val & 0xff;\
470
}
471
472
#define YUVA_OUT(d, y, u, v, a)\
473
{\
474
    ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
475
}
476
477
478
#define BPP 1
479
480 0a8cd696 Reimar Döffinger
static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
481 72ce053b Ian Caulfield
{
482
    int wrap, wrap3, width2, skip2;
483
    int y, u, v, a, u1, v1, a1, w, h;
484
    uint8_t *lum, *cb, *cr;
485
    const uint8_t *p;
486
    const uint32_t *pal;
487 9cb5a11e Reimar Döffinger
    int dstx, dsty, dstw, dsth;
488
489 7cf9c6ae Michael Niedermayer
    dstw = av_clip(rect->w, 0, imgw);
490
    dsth = av_clip(rect->h, 0, imgh);
491
    dstx = av_clip(rect->x, 0, imgw - dstw);
492
    dsty = av_clip(rect->y, 0, imgh - dsth);
493 9cb5a11e Reimar Döffinger
    lum = dst->data[0] + dsty * dst->linesize[0];
494
    cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
495
    cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
496
497 f54b31b9 Björn Axelsson
    width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
498 9cb5a11e Reimar Döffinger
    skip2 = dstx >> 1;
499 72ce053b Ian Caulfield
    wrap = dst->linesize[0];
500 25b4c651 Michael Niedermayer
    wrap3 = rect->pict.linesize[0];
501
    p = rect->pict.data[0];
502
    pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
503 115329f1 Diego Biurrun
504 9cb5a11e Reimar Döffinger
    if (dsty & 1) {
505
        lum += dstx;
506 72ce053b Ian Caulfield
        cb += skip2;
507
        cr += skip2;
508 115329f1 Diego Biurrun
509 9cb5a11e Reimar Döffinger
        if (dstx & 1) {
510 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
511
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
512
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
513
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
514
            cb++;
515
            cr++;
516
            lum++;
517
            p += BPP;
518
        }
519 9cb5a11e Reimar Döffinger
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
520 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
521
            u1 = u;
522
            v1 = v;
523
            a1 = a;
524
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
525
526
            YUVA_IN(y, u, v, a, p + BPP, pal);
527
            u1 += u;
528
            v1 += v;
529
            a1 += a;
530
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
531
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
532
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
533
            cb++;
534
            cr++;
535
            p += 2 * BPP;
536
            lum += 2;
537
        }
538
        if (w) {
539
            YUVA_IN(y, u, v, a, p, pal);
540
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
541
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
542
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
543 676ef505 Björn Axelsson
            p++;
544
            lum++;
545 72ce053b Ian Caulfield
        }
546 4606a059 Björn Axelsson
        p += wrap3 - dstw * BPP;
547
        lum += wrap - dstw - dstx;
548 72ce053b Ian Caulfield
        cb += dst->linesize[1] - width2 - skip2;
549
        cr += dst->linesize[2] - width2 - skip2;
550
    }
551 9cb5a11e Reimar Döffinger
    for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
552
        lum += dstx;
553 72ce053b Ian Caulfield
        cb += skip2;
554
        cr += skip2;
555 115329f1 Diego Biurrun
556 9cb5a11e Reimar Döffinger
        if (dstx & 1) {
557 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
558
            u1 = u;
559
            v1 = v;
560
            a1 = a;
561
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
562
            p += wrap3;
563
            lum += wrap;
564
            YUVA_IN(y, u, v, a, p, pal);
565
            u1 += u;
566
            v1 += v;
567
            a1 += a;
568
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
569
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
570
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
571
            cb++;
572
            cr++;
573
            p += -wrap3 + BPP;
574
            lum += -wrap + 1;
575
        }
576 9cb5a11e Reimar Döffinger
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
577 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
578
            u1 = u;
579
            v1 = v;
580
            a1 = a;
581
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
582
583 f8ca63e8 Björn Axelsson
            YUVA_IN(y, u, v, a, p + BPP, pal);
584 72ce053b Ian Caulfield
            u1 += u;
585
            v1 += v;
586
            a1 += a;
587
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
588
            p += wrap3;
589
            lum += wrap;
590
591
            YUVA_IN(y, u, v, a, p, pal);
592
            u1 += u;
593
            v1 += v;
594
            a1 += a;
595
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
596
597 f8ca63e8 Björn Axelsson
            YUVA_IN(y, u, v, a, p + BPP, pal);
598 72ce053b Ian Caulfield
            u1 += u;
599
            v1 += v;
600
            a1 += a;
601
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
602
603
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
604
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
605
606
            cb++;
607
            cr++;
608
            p += -wrap3 + 2 * BPP;
609
            lum += -wrap + 2;
610
        }
611
        if (w) {
612
            YUVA_IN(y, u, v, a, p, pal);
613
            u1 = u;
614
            v1 = v;
615
            a1 = a;
616
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
617
            p += wrap3;
618
            lum += wrap;
619
            YUVA_IN(y, u, v, a, p, pal);
620
            u1 += u;
621
            v1 += v;
622
            a1 += a;
623
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
624
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
625
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
626
            cb++;
627
            cr++;
628
            p += -wrap3 + BPP;
629
            lum += -wrap + 1;
630
        }
631 9cb5a11e Reimar Döffinger
        p += wrap3 + (wrap3 - dstw * BPP);
632
        lum += wrap + (wrap - dstw - dstx);
633 72ce053b Ian Caulfield
        cb += dst->linesize[1] - width2 - skip2;
634
        cr += dst->linesize[2] - width2 - skip2;
635
    }
636
    /* handle odd height */
637
    if (h) {
638 9cb5a11e Reimar Döffinger
        lum += dstx;
639 72ce053b Ian Caulfield
        cb += skip2;
640
        cr += skip2;
641 115329f1 Diego Biurrun
642 9cb5a11e Reimar Döffinger
        if (dstx & 1) {
643 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
644
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
645
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
646
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
647
            cb++;
648
            cr++;
649
            lum++;
650
            p += BPP;
651
        }
652 9cb5a11e Reimar Döffinger
        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
653 72ce053b Ian Caulfield
            YUVA_IN(y, u, v, a, p, pal);
654
            u1 = u;
655
            v1 = v;
656
            a1 = a;
657
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
658
659
            YUVA_IN(y, u, v, a, p + BPP, pal);
660
            u1 += u;
661
            v1 += v;
662
            a1 += a;
663
            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
664
            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
665
            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
666
            cb++;
667
            cr++;
668
            p += 2 * BPP;
669
            lum += 2;
670
        }
671
        if (w) {
672
            YUVA_IN(y, u, v, a, p, pal);
673
            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
674
            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
675
            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
676
        }
677
    }
678
}
679
680
static void free_subpicture(SubPicture *sp)
681
{
682 e1d7c883 Reimar Döffinger
    avsubtitle_free(&sp->sub);
683 72ce053b Ian Caulfield
}
684
685 01310af2 Fabrice Bellard
static void video_image_display(VideoState *is)
686
{
687
    VideoPicture *vp;
688 72ce053b Ian Caulfield
    SubPicture *sp;
689
    AVPicture pict;
690 01310af2 Fabrice Bellard
    float aspect_ratio;
691
    int width, height, x, y;
692
    SDL_Rect rect;
693 72ce053b Ian Caulfield
    int i;
694 01310af2 Fabrice Bellard
695
    vp = &is->pictq[is->pictq_rindex];
696
    if (vp->bmp) {
697 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
698 cc80caff S.N. Hemanth Meenakshisundaram
         if (vp->picref->video->pixel_aspect.num == 0)
699 917d2bb3 Michael Niedermayer
             aspect_ratio = 0;
700
         else
701 cc80caff S.N. Hemanth Meenakshisundaram
             aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
702 917d2bb3 Michael Niedermayer
#else
703
704 01310af2 Fabrice Bellard
        /* XXX: use variable in the frame */
705 c30a4489 Aurelien Jacobs
        if (is->video_st->sample_aspect_ratio.num)
706
            aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
707
        else if (is->video_st->codec->sample_aspect_ratio.num)
708
            aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
709 72ea344b Fabrice Bellard
        else
710 c30a4489 Aurelien Jacobs
            aspect_ratio = 0;
711 917d2bb3 Michael Niedermayer
#endif
712 01310af2 Fabrice Bellard
        if (aspect_ratio <= 0.0)
713 c30a4489 Aurelien Jacobs
            aspect_ratio = 1.0;
714 917d2bb3 Michael Niedermayer
        aspect_ratio *= (float)vp->width / (float)vp->height;
715 01310af2 Fabrice Bellard
716 72ce053b Ian Caulfield
        if (is->subtitle_st)
717
        {
718
            if (is->subpq_size > 0)
719
            {
720
                sp = &is->subpq[is->subpq_rindex];
721
722
                if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
723
                {
724
                    SDL_LockYUVOverlay (vp->bmp);
725
726
                    pict.data[0] = vp->bmp->pixels[0];
727
                    pict.data[1] = vp->bmp->pixels[2];
728
                    pict.data[2] = vp->bmp->pixels[1];
729
730
                    pict.linesize[0] = vp->bmp->pitches[0];
731
                    pict.linesize[1] = vp->bmp->pitches[2];
732
                    pict.linesize[2] = vp->bmp->pitches[1];
733
734
                    for (i = 0; i < sp->sub.num_rects; i++)
735 db4fac64 Michael Niedermayer
                        blend_subrect(&pict, sp->sub.rects[i],
736 0a8cd696 Reimar Döffinger
                                      vp->bmp->w, vp->bmp->h);
737 72ce053b Ian Caulfield
738
                    SDL_UnlockYUVOverlay (vp->bmp);
739
                }
740
            }
741
        }
742
743
744 01310af2 Fabrice Bellard
        /* XXX: we suppose the screen has a 1.0 pixel ratio */
745
        height = is->height;
746 bb6c34e5 Michael Niedermayer
        width = ((int)rint(height * aspect_ratio)) & ~1;
747 01310af2 Fabrice Bellard
        if (width > is->width) {
748
            width = is->width;
749 bb6c34e5 Michael Niedermayer
            height = ((int)rint(width / aspect_ratio)) & ~1;
750 01310af2 Fabrice Bellard
        }
751
        x = (is->width - width) / 2;
752
        y = (is->height - height) / 2;
753
        if (!is->no_background) {
754
            /* fill the background */
755
            //            fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
756
        } else {
757
            is->no_background = 0;
758
        }
759
        rect.x = is->xleft + x;
760 2f6547fb Baptiste Coudurier
        rect.y = is->ytop  + y;
761 01310af2 Fabrice Bellard
        rect.w = width;
762
        rect.h = height;
763
        SDL_DisplayYUVOverlay(vp->bmp, &rect);
764
    } else {
765
#if 0
766 115329f1 Diego Biurrun
        fill_rectangle(screen,
767
                       is->xleft, is->ytop, is->width, is->height,
768 01310af2 Fabrice Bellard
                       QERGB(0x00, 0x00, 0x00));
769
#endif
770
    }
771
}
772
773
static inline int compute_mod(int a, int b)
774
{
775
    a = a % b;
776 115329f1 Diego Biurrun
    if (a >= 0)
777 01310af2 Fabrice Bellard
        return a;
778
    else
779
        return a + b;
780
}
781
782
static void video_audio_display(VideoState *s)
783
{
784
    int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
785
    int ch, channels, h, h2, bgcolor, fgcolor;
786
    int16_t time_diff;
787 4c7c7645 Michael Niedermayer
    int rdft_bits, nb_freq;
788
789
    for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
790
        ;
791
    nb_freq= 1<<(rdft_bits-1);
792 115329f1 Diego Biurrun
793 01310af2 Fabrice Bellard
    /* compute display index : center on currently output samples */
794 01f4895c Michael Niedermayer
    channels = s->audio_st->codec->channels;
795 01310af2 Fabrice Bellard
    nb_display_channels = channels;
796 5e0257e3 Fabrice Bellard
    if (!s->paused) {
797 4c7c7645 Michael Niedermayer
        int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
798 5e0257e3 Fabrice Bellard
        n = 2 * channels;
799
        delay = audio_write_get_buf_size(s);
800
        delay /= n;
801 115329f1 Diego Biurrun
802 5e0257e3 Fabrice Bellard
        /* to be more precise, we take into account the time spent since
803
           the last buffer computation */
804
        if (audio_callback_time) {
805
            time_diff = av_gettime() - audio_callback_time;
806 122dcdcb Michael Niedermayer
            delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
807 5e0257e3 Fabrice Bellard
        }
808 115329f1 Diego Biurrun
809 122dcdcb Michael Niedermayer
        delay += 2*data_used;
810 4c7c7645 Michael Niedermayer
        if (delay < data_used)
811
            delay = data_used;
812 ac50bcc8 Michael Niedermayer
813
        i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
814 12eeda34 Michael Niedermayer
        if(s->show_audio==1){
815 6c7165c7 Jai Menon
            h= INT_MIN;
816
            for(i=0; i<1000; i+=channels){
817
                int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
818
                int a= s->sample_array[idx];
819
                int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
820
                int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
821
                int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
822
                int score= a-d;
823
                if(h<score && (b^c)<0){
824
                    h= score;
825
                    i_start= idx;
826
                }
827 ac50bcc8 Michael Niedermayer
            }
828
        }
829
830 5e0257e3 Fabrice Bellard
        s->last_i_start = i_start;
831
    } else {
832
        i_start = s->last_i_start;
833 01310af2 Fabrice Bellard
    }
834
835
    bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
836 12eeda34 Michael Niedermayer
    if(s->show_audio==1){
837 6c7165c7 Jai Menon
        fill_rectangle(screen,
838
                       s->xleft, s->ytop, s->width, s->height,
839
                       bgcolor);
840
841
        fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
842
843
        /* total height for one channel */
844
        h = s->height / nb_display_channels;
845
        /* graph height / 2 */
846
        h2 = (h * 9) / 20;
847
        for(ch = 0;ch < nb_display_channels; ch++) {
848
            i = i_start + ch;
849
            y1 = s->ytop + ch * h + (h / 2); /* position of center line */
850
            for(x = 0; x < s->width; x++) {
851
                y = (s->sample_array[i] * h2) >> 15;
852
                if (y < 0) {
853
                    y = -y;
854
                    ys = y1 - y;
855
                } else {
856
                    ys = y1;
857
                }
858
                fill_rectangle(screen,
859
                               s->xleft + x, ys, 1, y,
860
                               fgcolor);
861
                i += channels;
862
                if (i >= SAMPLE_ARRAY_SIZE)
863
                    i -= SAMPLE_ARRAY_SIZE;
864 01310af2 Fabrice Bellard
            }
865
        }
866
867 6c7165c7 Jai Menon
        fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
868 01310af2 Fabrice Bellard
869 6c7165c7 Jai Menon
        for(ch = 1;ch < nb_display_channels; ch++) {
870
            y = s->ytop + ch * h;
871
            fill_rectangle(screen,
872
                           s->xleft, y, s->width, 1,
873
                           fgcolor);
874
        }
875
        SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
876 12eeda34 Michael Niedermayer
    }else{
877
        nb_display_channels= FFMIN(nb_display_channels, 2);
878
        if(rdft_bits != s->rdft_bits){
879 166621ab Måns Rullgård
            av_rdft_end(s->rdft);
880 7dbbf6a1 Måns Rullgård
            av_free(s->rdft_data);
881 166621ab Måns Rullgård
            s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
882 12eeda34 Michael Niedermayer
            s->rdft_bits= rdft_bits;
883 7dbbf6a1 Måns Rullgård
            s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
884 12eeda34 Michael Niedermayer
        }
885
        {
886 7dbbf6a1 Måns Rullgård
            FFTSample *data[2];
887 12eeda34 Michael Niedermayer
            for(ch = 0;ch < nb_display_channels; ch++) {
888 7dbbf6a1 Måns Rullgård
                data[ch] = s->rdft_data + 2*nb_freq*ch;
889 12eeda34 Michael Niedermayer
                i = i_start + ch;
890
                for(x = 0; x < 2*nb_freq; x++) {
891
                    double w= (x-nb_freq)*(1.0/nb_freq);
892
                    data[ch][x]= s->sample_array[i]*(1.0-w*w);
893
                    i += channels;
894
                    if (i >= SAMPLE_ARRAY_SIZE)
895
                        i -= SAMPLE_ARRAY_SIZE;
896
                }
897 166621ab Måns Rullgård
                av_rdft_calc(s->rdft, data[ch]);
898 12eeda34 Michael Niedermayer
            }
899
            //least efficient way to do this, we should of course directly access it but its more than fast enough
900 092421cf Michael Niedermayer
            for(y=0; y<s->height; y++){
901 12eeda34 Michael Niedermayer
                double w= 1/sqrt(nb_freq);
902
                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]));
903 00f72577 Jai Menon
                int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
904
                       + data[1][2*y+1]*data[1][2*y+1])) : a;
905 12eeda34 Michael Niedermayer
                a= FFMIN(a,255);
906
                b= FFMIN(b,255);
907
                fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
908
909
                fill_rectangle(screen,
910
                            s->xpos, s->height-y, 1, 1,
911
                            fgcolor);
912
            }
913
        }
914
        SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
915
        s->xpos++;
916
        if(s->xpos >= s->width)
917
            s->xpos= s->xleft;
918
    }
919 01310af2 Fabrice Bellard
}
920
921 990c8438 Michael Niedermayer
static int video_open(VideoState *is){
922
    int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
923
    int w,h;
924
925 fb84155b Michael Niedermayer
    if(is_full_screen) flags |= SDL_FULLSCREEN;
926
    else               flags |= SDL_RESIZABLE;
927
928 990c8438 Michael Niedermayer
    if (is_full_screen && fs_screen_width) {
929
        w = fs_screen_width;
930
        h = fs_screen_height;
931 fb84155b Michael Niedermayer
    } else if(!is_full_screen && screen_width){
932
        w = screen_width;
933
        h = screen_height;
934 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
935
    }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
936
        w = is->out_video_filter->inputs[0]->w;
937
        h = is->out_video_filter->inputs[0]->h;
938
#else
939 fb84155b Michael Niedermayer
    }else if (is->video_st && is->video_st->codec->width){
940
        w = is->video_st->codec->width;
941
        h = is->video_st->codec->height;
942 917d2bb3 Michael Niedermayer
#endif
943 990c8438 Michael Niedermayer
    } else {
944 fb84155b Michael Niedermayer
        w = 640;
945
        h = 480;
946 990c8438 Michael Niedermayer
    }
947 d3d7b12e Michael Niedermayer
    if(screen && is->width == screen->w && screen->w == w
948
       && is->height== screen->h && screen->h == h)
949
        return 0;
950
951 c97f5402 Diego Biurrun
#ifndef __APPLE__
952 990c8438 Michael Niedermayer
    screen = SDL_SetVideoMode(w, h, 0, flags);
953
#else
954
    /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
955
    screen = SDL_SetVideoMode(w, h, 24, flags);
956
#endif
957
    if (!screen) {
958
        fprintf(stderr, "SDL: could not set video mode - exiting\n");
959
        return -1;
960
    }
961 076db5ed Robert Krüger
    if (!window_title)
962
        window_title = input_filename;
963
    SDL_WM_SetCaption(window_title, window_title);
964 990c8438 Michael Niedermayer
965
    is->width = screen->w;
966
    is->height = screen->h;
967
968
    return 0;
969
}
970 8c982c5d Michael Niedermayer
971 01310af2 Fabrice Bellard
/* display the current picture, if any */
972
static void video_display(VideoState *is)
973
{
974 8c982c5d Michael Niedermayer
    if(!screen)
975
        video_open(cur_stream);
976 115329f1 Diego Biurrun
    if (is->audio_st && is->show_audio)
977 01310af2 Fabrice Bellard
        video_audio_display(is);
978
    else if (is->video_st)
979
        video_image_display(is);
980
}
981
982 d38c9e7a Michael Niedermayer
static int refresh_thread(void *opaque)
983 01310af2 Fabrice Bellard
{
984 d38c9e7a Michael Niedermayer
    VideoState *is= opaque;
985
    while(!is->abort_request){
986 d881a0e8 Stefano Sabatini
        SDL_Event event;
987
        event.type = FF_REFRESH_EVENT;
988
        event.user.data1 = opaque;
989 d38c9e7a Michael Niedermayer
        if(!is->refresh){
990
            is->refresh=1;
991 d881a0e8 Stefano Sabatini
            SDL_PushEvent(&event);
992 d38c9e7a Michael Niedermayer
        }
993 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
994 d38c9e7a Michael Niedermayer
    }
995
    return 0;
996 01310af2 Fabrice Bellard
}
997
998 638c9d91 Fabrice Bellard
/* get the current audio clock value */
999
static double get_audio_clock(VideoState *is)
1000
{
1001
    double pts;
1002
    int hw_buf_size, bytes_per_sec;
1003
    pts = is->audio_clock;
1004
    hw_buf_size = audio_write_get_buf_size(is);
1005
    bytes_per_sec = 0;
1006
    if (is->audio_st) {
1007 115329f1 Diego Biurrun
        bytes_per_sec = is->audio_st->codec->sample_rate *
1008 01f4895c Michael Niedermayer
            2 * is->audio_st->codec->channels;
1009 638c9d91 Fabrice Bellard
    }
1010
    if (bytes_per_sec)
1011
        pts -= (double)hw_buf_size / bytes_per_sec;
1012
    return pts;
1013
}
1014
1015
/* get the current video clock value */
1016
static double get_video_clock(VideoState *is)
1017
{
1018 04108619 Michael Niedermayer
    if (is->paused) {
1019 41a4cd0c Michael Niedermayer
        return is->video_current_pts;
1020 72ea344b Fabrice Bellard
    } else {
1021 68aefbe8 Michael Niedermayer
        return is->video_current_pts_drift + av_gettime() / 1000000.0;
1022 72ea344b Fabrice Bellard
    }
1023 638c9d91 Fabrice Bellard
}
1024
1025
/* get the current external clock value */
1026
static double get_external_clock(VideoState *is)
1027
{
1028
    int64_t ti;
1029
    ti = av_gettime();
1030
    return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1031
}
1032
1033
/* get the current master clock value */
1034
static double get_master_clock(VideoState *is)
1035
{
1036
    double val;
1037
1038 72ea344b Fabrice Bellard
    if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1039
        if (is->video_st)
1040
            val = get_video_clock(is);
1041
        else
1042
            val = get_audio_clock(is);
1043
    } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1044
        if (is->audio_st)
1045
            val = get_audio_clock(is);
1046
        else
1047
            val = get_video_clock(is);
1048
    } else {
1049 638c9d91 Fabrice Bellard
        val = get_external_clock(is);
1050 72ea344b Fabrice Bellard
    }
1051 638c9d91 Fabrice Bellard
    return val;
1052
}
1053
1054 72ea344b Fabrice Bellard
/* seek in the stream */
1055 2ef46053 Michael Niedermayer
static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1056 72ea344b Fabrice Bellard
{
1057 687fae2b Ivan Wong
    if (!is->seek_req) {
1058
        is->seek_pos = pos;
1059 4ed29207 Michael Niedermayer
        is->seek_rel = rel;
1060 3890dd3a Michael Niedermayer
        is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1061 94b594c6 Steve L'Homme
        if (seek_by_bytes)
1062
            is->seek_flags |= AVSEEK_FLAG_BYTE;
1063 687fae2b Ivan Wong
        is->seek_req = 1;
1064
    }
1065 72ea344b Fabrice Bellard
}
1066
1067
/* pause or resume the video */
1068
static void stream_pause(VideoState *is)
1069
{
1070 68aefbe8 Michael Niedermayer
    if (is->paused) {
1071
        is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1072 f5668147 Michael Niedermayer
        if(is->read_pause_return != AVERROR(ENOSYS)){
1073 68aefbe8 Michael Niedermayer
            is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1074 f5668147 Michael Niedermayer
        }
1075 68aefbe8 Michael Niedermayer
        is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1076 72ea344b Fabrice Bellard
    }
1077 68aefbe8 Michael Niedermayer
    is->paused = !is->paused;
1078 72ea344b Fabrice Bellard
}
1079
1080 d38c9e7a Michael Niedermayer
static double compute_target_time(double frame_current_pts, VideoState *is)
1081 49410784 Tomer Barletz
{
1082 d38c9e7a Michael Niedermayer
    double delay, sync_threshold, diff;
1083 49410784 Tomer Barletz
1084
    /* compute nominal delay */
1085
    delay = frame_current_pts - is->frame_last_pts;
1086
    if (delay <= 0 || delay >= 10.0) {
1087
        /* if incorrect delay, use previous one */
1088
        delay = is->frame_last_delay;
1089 443658fd Tomer Barletz
    } else {
1090 712de377 Benoit Fouet
        is->frame_last_delay = delay;
1091 443658fd Tomer Barletz
    }
1092 49410784 Tomer Barletz
    is->frame_last_pts = frame_current_pts;
1093
1094
    /* update delay to follow master synchronisation source */
1095
    if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1096
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1097
        /* if video is slave, we try to correct big delays by
1098
           duplicating or deleting a frame */
1099 f04c6e35 Michael Niedermayer
        diff = get_video_clock(is) - get_master_clock(is);
1100 49410784 Tomer Barletz
1101
        /* skip or repeat frame. We take into account the
1102
           delay to compute the threshold. I still don't know
1103
           if it is the best guess */
1104
        sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1105
        if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1106
            if (diff <= -sync_threshold)
1107
                delay = 0;
1108
            else if (diff >= sync_threshold)
1109
                delay = 2 * delay;
1110
        }
1111
    }
1112
    is->frame_timer += delay;
1113 eecc17a7 Tomer Barletz
#if defined(DEBUG_SYNC)
1114
    printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1115
            delay, actual_delay, frame_current_pts, -diff);
1116
#endif
1117
1118 d38c9e7a Michael Niedermayer
    return is->frame_timer;
1119 49410784 Tomer Barletz
}
1120
1121 01310af2 Fabrice Bellard
/* called to display each frame */
1122
static void video_refresh_timer(void *opaque)
1123
{
1124
    VideoState *is = opaque;
1125
    VideoPicture *vp;
1126 638c9d91 Fabrice Bellard
1127 72ce053b Ian Caulfield
    SubPicture *sp, *sp2;
1128 01310af2 Fabrice Bellard
1129
    if (is->video_st) {
1130 d38c9e7a Michael Niedermayer
retry:
1131 01310af2 Fabrice Bellard
        if (is->pictq_size == 0) {
1132 d38c9e7a Michael Niedermayer
            //nothing to do, no picture to display in the que
1133 01310af2 Fabrice Bellard
        } else {
1134 d38c9e7a Michael Niedermayer
            double time= av_gettime()/1000000.0;
1135
            double next_target;
1136 638c9d91 Fabrice Bellard
            /* dequeue the picture */
1137 01310af2 Fabrice Bellard
            vp = &is->pictq[is->pictq_rindex];
1138 638c9d91 Fabrice Bellard
1139 d38c9e7a Michael Niedermayer
            if(time < vp->target_clock)
1140
                return;
1141 638c9d91 Fabrice Bellard
            /* update current video pts */
1142
            is->video_current_pts = vp->pts;
1143 d38c9e7a Michael Niedermayer
            is->video_current_pts_drift = is->video_current_pts - time;
1144 a3cc2160 Michael Niedermayer
            is->video_current_pos = vp->pos;
1145 d38c9e7a Michael Niedermayer
            if(is->pictq_size > 1){
1146
                VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1147
                assert(nextvp->target_clock >= vp->target_clock);
1148
                next_target= nextvp->target_clock;
1149
            }else{
1150
                next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1151
            }
1152
            if(framedrop && time > next_target){
1153
                is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1154
                if(is->pictq_size > 1 || time > next_target + 0.5){
1155
                    /* update queue size and signal for next picture */
1156
                    if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1157
                        is->pictq_rindex = 0;
1158
1159
                    SDL_LockMutex(is->pictq_mutex);
1160
                    is->pictq_size--;
1161
                    SDL_CondSignal(is->pictq_cond);
1162
                    SDL_UnlockMutex(is->pictq_mutex);
1163
                    goto retry;
1164
                }
1165
            }
1166 638c9d91 Fabrice Bellard
1167 72ce053b Ian Caulfield
            if(is->subtitle_st) {
1168
                if (is->subtitle_stream_changed) {
1169
                    SDL_LockMutex(is->subpq_mutex);
1170 115329f1 Diego Biurrun
1171 72ce053b Ian Caulfield
                    while (is->subpq_size) {
1172
                        free_subpicture(&is->subpq[is->subpq_rindex]);
1173 115329f1 Diego Biurrun
1174 72ce053b Ian Caulfield
                        /* update queue size and signal for next picture */
1175
                        if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1176
                            is->subpq_rindex = 0;
1177 115329f1 Diego Biurrun
1178 72ce053b Ian Caulfield
                        is->subpq_size--;
1179
                    }
1180
                    is->subtitle_stream_changed = 0;
1181
1182
                    SDL_CondSignal(is->subpq_cond);
1183
                    SDL_UnlockMutex(is->subpq_mutex);
1184
                } else {
1185
                    if (is->subpq_size > 0) {
1186
                        sp = &is->subpq[is->subpq_rindex];
1187
1188
                        if (is->subpq_size > 1)
1189
                            sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1190
                        else
1191
                            sp2 = NULL;
1192
1193
                        if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1194
                                || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1195
                        {
1196
                            free_subpicture(sp);
1197
1198
                            /* update queue size and signal for next picture */
1199
                            if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1200
                                is->subpq_rindex = 0;
1201
1202
                            SDL_LockMutex(is->subpq_mutex);
1203
                            is->subpq_size--;
1204
                            SDL_CondSignal(is->subpq_cond);
1205
                            SDL_UnlockMutex(is->subpq_mutex);
1206
                        }
1207
                    }
1208
                }
1209
            }
1210
1211 01310af2 Fabrice Bellard
            /* display picture */
1212 112c4b87 Stefano Sabatini
            if (!display_disable)
1213 24d13ebc Stefano Sabatini
                video_display(is);
1214 115329f1 Diego Biurrun
1215 01310af2 Fabrice Bellard
            /* update queue size and signal for next picture */
1216
            if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1217
                is->pictq_rindex = 0;
1218 115329f1 Diego Biurrun
1219 01310af2 Fabrice Bellard
            SDL_LockMutex(is->pictq_mutex);
1220
            is->pictq_size--;
1221
            SDL_CondSignal(is->pictq_cond);
1222
            SDL_UnlockMutex(is->pictq_mutex);
1223
        }
1224
    } else if (is->audio_st) {
1225
        /* draw the next audio frame */
1226
1227
        /* if only audio stream, then display the audio bars (better
1228
           than nothing, just to test the implementation */
1229 115329f1 Diego Biurrun
1230 01310af2 Fabrice Bellard
        /* display picture */
1231 112c4b87 Stefano Sabatini
        if (!display_disable)
1232 24d13ebc Stefano Sabatini
            video_display(is);
1233 01310af2 Fabrice Bellard
    }
1234
    if (show_status) {
1235
        static int64_t last_time;
1236
        int64_t cur_time;
1237 72ce053b Ian Caulfield
        int aqsize, vqsize, sqsize;
1238 638c9d91 Fabrice Bellard
        double av_diff;
1239 115329f1 Diego Biurrun
1240 01310af2 Fabrice Bellard
        cur_time = av_gettime();
1241 1e1a0b18 Baptiste Coudurier
        if (!last_time || (cur_time - last_time) >= 30000) {
1242 01310af2 Fabrice Bellard
            aqsize = 0;
1243
            vqsize = 0;
1244 72ce053b Ian Caulfield
            sqsize = 0;
1245 01310af2 Fabrice Bellard
            if (is->audio_st)
1246
                aqsize = is->audioq.size;
1247
            if (is->video_st)
1248
                vqsize = is->videoq.size;
1249 72ce053b Ian Caulfield
            if (is->subtitle_st)
1250
                sqsize = is->subtitleq.size;
1251 638c9d91 Fabrice Bellard
            av_diff = 0;
1252
            if (is->audio_st && is->video_st)
1253
                av_diff = get_audio_clock(is) - get_video_clock(is);
1254 382f3a5b Michael Niedermayer
            printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
1255 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);
1256 01310af2 Fabrice Bellard
            fflush(stdout);
1257
            last_time = cur_time;
1258
        }
1259
    }
1260
}
1261
1262 f7b8c814 Mike Scheutzow
static void stream_close(VideoState *is)
1263
{
1264
    VideoPicture *vp;
1265
    int i;
1266
    /* XXX: use a special url_shutdown call to abort parse cleanly */
1267
    is->abort_request = 1;
1268
    SDL_WaitThread(is->parse_tid, NULL);
1269
    SDL_WaitThread(is->refresh_tid, NULL);
1270
1271
    /* free all pictures */
1272
    for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1273
        vp = &is->pictq[i];
1274
#if CONFIG_AVFILTER
1275
        if (vp->picref) {
1276
            avfilter_unref_buffer(vp->picref);
1277
            vp->picref = NULL;
1278
        }
1279
#endif
1280
        if (vp->bmp) {
1281
            SDL_FreeYUVOverlay(vp->bmp);
1282
            vp->bmp = NULL;
1283
        }
1284
    }
1285
    SDL_DestroyMutex(is->pictq_mutex);
1286
    SDL_DestroyCond(is->pictq_cond);
1287
    SDL_DestroyMutex(is->subpq_mutex);
1288
    SDL_DestroyCond(is->subpq_cond);
1289
#if !CONFIG_AVFILTER
1290
    if (is->img_convert_ctx)
1291
        sws_freeContext(is->img_convert_ctx);
1292
#endif
1293
    av_free(is);
1294
}
1295
1296
static void do_exit(void)
1297
{
1298
    if (cur_stream) {
1299
        stream_close(cur_stream);
1300
        cur_stream = NULL;
1301
    }
1302 a5c33faa Reimar Döffinger
    uninit_opts();
1303 f7b8c814 Mike Scheutzow
#if CONFIG_AVFILTER
1304
    avfilter_uninit();
1305
#endif
1306
    if (show_status)
1307
        printf("\n");
1308
    SDL_Quit();
1309 6b6bca64 Michael Niedermayer
    av_log(NULL, AV_LOG_QUIET, "");
1310 f7b8c814 Mike Scheutzow
    exit(0);
1311
}
1312
1313 01310af2 Fabrice Bellard
/* allocate a picture (needs to do that in main thread to avoid
1314
   potential locking problems */
1315
static void alloc_picture(void *opaque)
1316
{
1317
    VideoState *is = opaque;
1318
    VideoPicture *vp;
1319
1320
    vp = &is->pictq[is->pictq_windex];
1321
1322
    if (vp->bmp)
1323
        SDL_FreeYUVOverlay(vp->bmp);
1324
1325 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1326
    if (vp->picref)
1327 7fce481a S.N. Hemanth Meenakshisundaram
        avfilter_unref_buffer(vp->picref);
1328 917d2bb3 Michael Niedermayer
    vp->picref = NULL;
1329
1330
    vp->width   = is->out_video_filter->inputs[0]->w;
1331
    vp->height  = is->out_video_filter->inputs[0]->h;
1332
    vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1333
#else
1334
    vp->width   = is->video_st->codec->width;
1335
    vp->height  = is->video_st->codec->height;
1336
    vp->pix_fmt = is->video_st->codec->pix_fmt;
1337
#endif
1338
1339
    vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1340 115329f1 Diego Biurrun
                                   SDL_YV12_OVERLAY,
1341 61890b02 Fabrice Bellard
                                   screen);
1342 cb036f90 Mike Scheutzow
    if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1343
        /* SDL allocates a buffer smaller than requested if the video
1344
         * overlay hardware is unable to support the requested size. */
1345
        fprintf(stderr, "Error: the video system does not support an image\n"
1346 aa78a6d6 Carl Eugen Hoyos
                        "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1347 cb036f90 Mike Scheutzow
                        "to reduce the image size.\n", vp->width, vp->height );
1348
        do_exit();
1349
    }
1350 01310af2 Fabrice Bellard
1351
    SDL_LockMutex(is->pictq_mutex);
1352
    vp->allocated = 1;
1353
    SDL_CondSignal(is->pictq_cond);
1354
    SDL_UnlockMutex(is->pictq_mutex);
1355
}
1356
1357 267e9dfa Michael Niedermayer
/**
1358
 *
1359
 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1360
 */
1361 1a620dd7 Michael Niedermayer
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1362 01310af2 Fabrice Bellard
{
1363
    VideoPicture *vp;
1364
    int dst_pix_fmt;
1365 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1366
    AVPicture pict_src;
1367
#endif
1368 01310af2 Fabrice Bellard
    /* wait until we have space to put a new picture */
1369
    SDL_LockMutex(is->pictq_mutex);
1370 d38c9e7a Michael Niedermayer
1371
    if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1372
        is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1373
1374 01310af2 Fabrice Bellard
    while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1375
           !is->videoq.abort_request) {
1376
        SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1377
    }
1378
    SDL_UnlockMutex(is->pictq_mutex);
1379 115329f1 Diego Biurrun
1380 01310af2 Fabrice Bellard
    if (is->videoq.abort_request)
1381
        return -1;
1382
1383
    vp = &is->pictq[is->pictq_windex];
1384
1385
    /* alloc or resize hardware picture buffer */
1386 115329f1 Diego Biurrun
    if (!vp->bmp ||
1387 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1388
        vp->width  != is->out_video_filter->inputs[0]->w ||
1389
        vp->height != is->out_video_filter->inputs[0]->h) {
1390
#else
1391 01f4895c Michael Niedermayer
        vp->width != is->video_st->codec->width ||
1392
        vp->height != is->video_st->codec->height) {
1393 917d2bb3 Michael Niedermayer
#endif
1394 01310af2 Fabrice Bellard
        SDL_Event event;
1395
1396
        vp->allocated = 0;
1397
1398
        /* the allocation must be done in the main thread to avoid
1399
           locking problems */
1400
        event.type = FF_ALLOC_EVENT;
1401
        event.user.data1 = is;
1402
        SDL_PushEvent(&event);
1403 115329f1 Diego Biurrun
1404 01310af2 Fabrice Bellard
        /* wait until the picture is allocated */
1405
        SDL_LockMutex(is->pictq_mutex);
1406
        while (!vp->allocated && !is->videoq.abort_request) {
1407
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1408
        }
1409
        SDL_UnlockMutex(is->pictq_mutex);
1410
1411
        if (is->videoq.abort_request)
1412
            return -1;
1413
    }
1414
1415 638c9d91 Fabrice Bellard
    /* if the frame is not skipped, then display it */
1416 01310af2 Fabrice Bellard
    if (vp->bmp) {
1417 fbf1b885 avcoder
        AVPicture pict;
1418 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1419
        if(vp->picref)
1420 7fce481a S.N. Hemanth Meenakshisundaram
            avfilter_unref_buffer(vp->picref);
1421 917d2bb3 Michael Niedermayer
        vp->picref = src_frame->opaque;
1422
#endif
1423 fbf1b885 avcoder
1424 01310af2 Fabrice Bellard
        /* get a pointer on the bitmap */
1425
        SDL_LockYUVOverlay (vp->bmp);
1426
1427
        dst_pix_fmt = PIX_FMT_YUV420P;
1428 fbf1b885 avcoder
        memset(&pict,0,sizeof(AVPicture));
1429 01310af2 Fabrice Bellard
        pict.data[0] = vp->bmp->pixels[0];
1430
        pict.data[1] = vp->bmp->pixels[2];
1431
        pict.data[2] = vp->bmp->pixels[1];
1432
1433
        pict.linesize[0] = vp->bmp->pitches[0];
1434
        pict.linesize[1] = vp->bmp->pitches[2];
1435
        pict.linesize[2] = vp->bmp->pitches[1];
1436 917d2bb3 Michael Niedermayer
1437
#if CONFIG_AVFILTER
1438
        pict_src.data[0] = src_frame->data[0];
1439
        pict_src.data[1] = src_frame->data[1];
1440
        pict_src.data[2] = src_frame->data[2];
1441
1442
        pict_src.linesize[0] = src_frame->linesize[0];
1443
        pict_src.linesize[1] = src_frame->linesize[1];
1444
        pict_src.linesize[2] = src_frame->linesize[2];
1445
1446
        //FIXME use direct rendering
1447
        av_picture_copy(&pict, &pict_src,
1448
                        vp->pix_fmt, vp->width, vp->height);
1449
#else
1450 e43d7a18 Michael Niedermayer
        sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1451 3ac56e28 Martin Storsjö
        is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1452 917d2bb3 Michael Niedermayer
            vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1453 feb7bc67 Alex Beregszaszi
            dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1454 3ac56e28 Martin Storsjö
        if (is->img_convert_ctx == NULL) {
1455 26ba8235 Alex Beregszaszi
            fprintf(stderr, "Cannot initialize the conversion context\n");
1456
            exit(1);
1457
        }
1458 3ac56e28 Martin Storsjö
        sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1459 917d2bb3 Michael Niedermayer
                  0, vp->height, pict.data, pict.linesize);
1460
#endif
1461 01310af2 Fabrice Bellard
        /* update the bitmap content */
1462
        SDL_UnlockYUVOverlay(vp->bmp);
1463
1464 638c9d91 Fabrice Bellard
        vp->pts = pts;
1465 1a620dd7 Michael Niedermayer
        vp->pos = pos;
1466 01310af2 Fabrice Bellard
1467
        /* now we can update the picture count */
1468
        if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1469
            is->pictq_windex = 0;
1470
        SDL_LockMutex(is->pictq_mutex);
1471 d38c9e7a Michael Niedermayer
        vp->target_clock= compute_target_time(vp->pts, is);
1472
1473 01310af2 Fabrice Bellard
        is->pictq_size++;
1474
        SDL_UnlockMutex(is->pictq_mutex);
1475
    }
1476 638c9d91 Fabrice Bellard
    return 0;
1477
}
1478
1479 115329f1 Diego Biurrun
/**
1480
 * compute the exact PTS for the picture if it is omitted in the stream
1481 267e9dfa Michael Niedermayer
 * @param pts1 the dts of the pkt / pts of the frame
1482
 */
1483 1a620dd7 Michael Niedermayer
static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1484 638c9d91 Fabrice Bellard
{
1485
    double frame_delay, pts;
1486 115329f1 Diego Biurrun
1487 638c9d91 Fabrice Bellard
    pts = pts1;
1488
1489 01310af2 Fabrice Bellard
    if (pts != 0) {
1490 638c9d91 Fabrice Bellard
        /* update video clock with pts, if present */
1491 01310af2 Fabrice Bellard
        is->video_clock = pts;
1492
    } else {
1493 72ea344b Fabrice Bellard
        pts = is->video_clock;
1494
    }
1495
    /* update video clock for next frame */
1496 01f4895c Michael Niedermayer
    frame_delay = av_q2d(is->video_st->codec->time_base);
1497 72ea344b Fabrice Bellard
    /* for MPEG2, the frame can be repeated, so we update the
1498
       clock accordingly */
1499 267e9dfa Michael Niedermayer
    frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1500 72ea344b Fabrice Bellard
    is->video_clock += frame_delay;
1501 638c9d91 Fabrice Bellard
1502
#if defined(DEBUG_SYNC) && 0
1503 ff358eca Stefano Sabatini
    printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1504
           av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1505 638c9d91 Fabrice Bellard
#endif
1506 1a620dd7 Michael Niedermayer
    return queue_picture(is, src_frame, pts, pos);
1507 01310af2 Fabrice Bellard
}
1508
1509 3966a574 Michael Niedermayer
static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1510 01310af2 Fabrice Bellard
{
1511 6c7d3ead Michael Niedermayer
    int len1, got_picture, i;
1512 01310af2 Fabrice Bellard
1513 199c18a7 Stefano Sabatini
    if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1514
        return -1;
1515 6c7d3ead Michael Niedermayer
1516 199c18a7 Stefano Sabatini
    if (pkt->data == flush_pkt.data) {
1517
        avcodec_flush_buffers(is->video_st->codec);
1518 6c7d3ead Michael Niedermayer
1519 199c18a7 Stefano Sabatini
        SDL_LockMutex(is->pictq_mutex);
1520
        //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1521
        for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1522
            is->pictq[i].target_clock= 0;
1523
        }
1524
        while (is->pictq_size && !is->videoq.abort_request) {
1525
            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1526 39c6a118 Michael Niedermayer
        }
1527 199c18a7 Stefano Sabatini
        is->video_current_pos = -1;
1528
        SDL_UnlockMutex(is->pictq_mutex);
1529 39c6a118 Michael Niedermayer
1530 199c18a7 Stefano Sabatini
        init_pts_correction(&is->pts_ctx);
1531
        is->frame_last_pts = AV_NOPTS_VALUE;
1532
        is->frame_last_delay = 0;
1533
        is->frame_timer = (double)av_gettime() / 1000000.0;
1534
        is->skip_frames = 1;
1535
        is->skip_frames_index = 0;
1536
        return 0;
1537
    }
1538 7a8bfa5d Alexander Strange
1539 199c18a7 Stefano Sabatini
    len1 = avcodec_decode_video2(is->video_st->codec,
1540
                                 frame, &got_picture,
1541
                                 pkt);
1542
1543
    if (got_picture) {
1544
        if (decoder_reorder_pts == -1) {
1545 6b474953 Alexander Strange
            *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
1546 199c18a7 Stefano Sabatini
        } else if (decoder_reorder_pts) {
1547 28550804 Stefano Sabatini
            *pts = frame->pkt_pts;
1548 199c18a7 Stefano Sabatini
        } else {
1549 6b474953 Alexander Strange
            *pts = frame->pkt_dts;
1550 199c18a7 Stefano Sabatini
        }
1551
1552
        if (*pts == AV_NOPTS_VALUE) {
1553
            *pts = 0;
1554 99e0b12b Michael Niedermayer
        }
1555 41db429d Michael Niedermayer
1556 d38c9e7a Michael Niedermayer
        is->skip_frames_index += 1;
1557
        if(is->skip_frames_index >= is->skip_frames){
1558
            is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1559
            return 1;
1560
        }
1561
1562
    }
1563 917d2bb3 Michael Niedermayer
    return 0;
1564
}
1565
1566
#if CONFIG_AVFILTER
1567
typedef struct {
1568
    VideoState *is;
1569
    AVFrame *frame;
1570 dd0c789b Bobby Bingham
    int use_dr1;
1571 917d2bb3 Michael Niedermayer
} FilterPriv;
1572
1573 dd0c789b Bobby Bingham
static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1574
{
1575
    AVFilterContext *ctx = codec->opaque;
1576 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef  *ref;
1577 dd0c789b Bobby Bingham
    int perms = AV_PERM_WRITE;
1578 65929418 François Revol
    int i, w, h, stride[4];
1579 dd0c789b Bobby Bingham
    unsigned edge;
1580
1581 0ccabeea Michael Niedermayer
    if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1582
        perms |= AV_PERM_NEG_LINESIZES;
1583
1584 dd0c789b Bobby Bingham
    if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1585
        if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1586
        if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1587
        if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1588
    }
1589
    if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1590
1591
    w = codec->width;
1592
    h = codec->height;
1593
    avcodec_align_dimensions2(codec, &w, &h, stride);
1594
    edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1595
    w += edge << 1;
1596
    h += edge << 1;
1597
1598
    if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1599
        return -1;
1600
1601 cc80caff S.N. Hemanth Meenakshisundaram
    ref->video->w = codec->width;
1602
    ref->video->h = codec->height;
1603 cfb7e6e6 Jai Menon
    for(i = 0; i < 4; i ++) {
1604 d54e0948 S.N. Hemanth Meenakshisundaram
        unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1605
        unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1606 dd0c789b Bobby Bingham
1607 3635c07b Jai Menon
        if (ref->data[i]) {
1608 e53ca636 Jai Menon
            ref->data[i]    += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1609 3635c07b Jai Menon
        }
1610 dd0c789b Bobby Bingham
        pic->data[i]     = ref->data[i];
1611
        pic->linesize[i] = ref->linesize[i];
1612
    }
1613
    pic->opaque = ref;
1614
    pic->age    = INT_MAX;
1615
    pic->type   = FF_BUFFER_TYPE_USER;
1616 867ab7fb Michael Niedermayer
    pic->reordered_opaque = codec->reordered_opaque;
1617 393cbb96 Michael Niedermayer
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1618
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1619 dd0c789b Bobby Bingham
    return 0;
1620
}
1621
1622
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1623
{
1624
    memset(pic->data, 0, sizeof(pic->data));
1625 7fce481a S.N. Hemanth Meenakshisundaram
    avfilter_unref_buffer(pic->opaque);
1626 dd0c789b Bobby Bingham
}
1627
1628 12bd3c1f Jai Menon
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1629
{
1630 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef *ref = pic->opaque;
1631 12bd3c1f Jai Menon
1632
    if (pic->data[0] == NULL) {
1633
        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1634
        return codec->get_buffer(codec, pic);
1635
    }
1636
1637 cc80caff S.N. Hemanth Meenakshisundaram
    if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1638 d54e0948 S.N. Hemanth Meenakshisundaram
        (codec->pix_fmt != ref->format)) {
1639 12bd3c1f Jai Menon
        av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1640
        return -1;
1641
    }
1642
1643
    pic->reordered_opaque = codec->reordered_opaque;
1644 393cbb96 Michael Niedermayer
    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1645
    else           pic->pkt_pts = AV_NOPTS_VALUE;
1646 12bd3c1f Jai Menon
    return 0;
1647
}
1648
1649 917d2bb3 Michael Niedermayer
static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1650
{
1651
    FilterPriv *priv = ctx->priv;
1652 dd0c789b Bobby Bingham
    AVCodecContext *codec;
1653 917d2bb3 Michael Niedermayer
    if(!opaque) return -1;
1654
1655
    priv->is = opaque;
1656 dd0c789b Bobby Bingham
    codec    = priv->is->video_st->codec;
1657
    codec->opaque = ctx;
1658
    if(codec->codec->capabilities & CODEC_CAP_DR1) {
1659
        priv->use_dr1 = 1;
1660
        codec->get_buffer     = input_get_buffer;
1661
        codec->release_buffer = input_release_buffer;
1662 12bd3c1f Jai Menon
        codec->reget_buffer   = input_reget_buffer;
1663 37b00b47 Alexander Strange
        codec->thread_safe_callbacks = 1;
1664 dd0c789b Bobby Bingham
    }
1665
1666 917d2bb3 Michael Niedermayer
    priv->frame = avcodec_alloc_frame();
1667
1668
    return 0;
1669
}
1670
1671
static void input_uninit(AVFilterContext *ctx)
1672
{
1673
    FilterPriv *priv = ctx->priv;
1674
    av_free(priv->frame);
1675
}
1676
1677
static int input_request_frame(AVFilterLink *link)
1678
{
1679
    FilterPriv *priv = link->src->priv;
1680 ecc8dada S.N. Hemanth Meenakshisundaram
    AVFilterBufferRef *picref;
1681 3966a574 Michael Niedermayer
    int64_t pts = 0;
1682 917d2bb3 Michael Niedermayer
    AVPacket pkt;
1683
    int ret;
1684
1685
    while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1686
        av_free_packet(&pkt);
1687
    if (ret < 0)
1688
        return -1;
1689
1690 dd0c789b Bobby Bingham
    if(priv->use_dr1) {
1691 7fce481a S.N. Hemanth Meenakshisundaram
        picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1692 dd0c789b Bobby Bingham
    } else {
1693 cf097cbc Bobby Bingham
        picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1694 34017fd9 Stefano Sabatini
        av_image_copy(picref->data, picref->linesize,
1695 4afbcf46 Stefano Sabatini
                      priv->frame->data, priv->frame->linesize,
1696
                      picref->format, link->w, link->h);
1697 dd0c789b Bobby Bingham
    }
1698 917d2bb3 Michael Niedermayer
    av_free_packet(&pkt);
1699
1700
    picref->pts = pts;
1701 bb409513 Stefano Sabatini
    picref->pos = pkt.pos;
1702 cc80caff S.N. Hemanth Meenakshisundaram
    picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1703 c41c5b02 Bobby Bingham
    avfilter_start_frame(link, picref);
1704 917d2bb3 Michael Niedermayer
    avfilter_draw_slice(link, 0, link->h, 1);
1705
    avfilter_end_frame(link);
1706
1707
    return 0;
1708
}
1709
1710
static int input_query_formats(AVFilterContext *ctx)
1711
{
1712
    FilterPriv *priv = ctx->priv;
1713
    enum PixelFormat pix_fmts[] = {
1714
        priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1715
    };
1716
1717
    avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1718
    return 0;
1719
}
1720
1721
static int input_config_props(AVFilterLink *link)
1722
{
1723
    FilterPriv *priv  = link->src->priv;
1724
    AVCodecContext *c = priv->is->video_st->codec;
1725
1726
    link->w = c->width;
1727
    link->h = c->height;
1728 387b4ac9 Stefano Sabatini
    link->time_base = priv->is->video_st->time_base;
1729 917d2bb3 Michael Niedermayer
1730
    return 0;
1731
}
1732
1733
static AVFilter input_filter =
1734
{
1735
    .name      = "ffplay_input",
1736
1737
    .priv_size = sizeof(FilterPriv),
1738
1739
    .init      = input_init,
1740
    .uninit    = input_uninit,
1741
1742
    .query_formats = input_query_formats,
1743
1744
    .inputs    = (AVFilterPad[]) {{ .name = NULL }},
1745
    .outputs   = (AVFilterPad[]) {{ .name = "default",
1746 72415b2a Stefano Sabatini
                                    .type = AVMEDIA_TYPE_VIDEO,
1747 917d2bb3 Michael Niedermayer
                                    .request_frame = input_request_frame,
1748
                                    .config_props  = input_config_props, },
1749
                                  { .name = NULL }},
1750
};
1751
1752 75ea596d Stefano Sabatini
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1753 917d2bb3 Michael Niedermayer
{
1754 3f073fa2 Stefano Sabatini
    char sws_flags_str[128];
1755 75ea596d Stefano Sabatini
    int ret;
1756 f7ead94c Stefano Sabatini
    FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1757 917d2bb3 Michael Niedermayer
    AVFilterContext *filt_src = NULL, *filt_out = NULL;
1758 3f073fa2 Stefano Sabatini
    snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1759
    graph->scale_sws_opts = av_strdup(sws_flags_str);
1760 917d2bb3 Michael Niedermayer
1761 75ea596d Stefano Sabatini
    if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1762
                                            NULL, is, graph)) < 0)
1763 037be76e Stefano Sabatini
        goto the_end;
1764 75ea596d Stefano Sabatini
    if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1765
                                            NULL, &ffsink_ctx, graph)) < 0)
1766 037be76e Stefano Sabatini
        goto the_end;
1767 917d2bb3 Michael Niedermayer
1768
    if(vfilters) {
1769
        AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1770
        AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
1771
1772
        outputs->name    = av_strdup("in");
1773 7313132b Stefano Sabatini
        outputs->filter_ctx = filt_src;
1774 917d2bb3 Michael Niedermayer
        outputs->pad_idx = 0;
1775
        outputs->next    = NULL;
1776
1777
        inputs->name    = av_strdup("out");
1778 7313132b Stefano Sabatini
        inputs->filter_ctx = filt_out;
1779 917d2bb3 Michael Niedermayer
        inputs->pad_idx = 0;
1780
        inputs->next    = NULL;
1781
1782 75ea596d Stefano Sabatini
        if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1783 917d2bb3 Michael Niedermayer
            goto the_end;
1784
        av_freep(&vfilters);
1785
    } else {
1786 75ea596d Stefano Sabatini
        if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1787
            goto the_end;
1788 917d2bb3 Michael Niedermayer
    }
1789
1790 75ea596d Stefano Sabatini
    if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1791 2a24df93 Stefano Sabatini
        goto the_end;
1792 917d2bb3 Michael Niedermayer
1793
    is->out_video_filter = filt_out;
1794 75ea596d Stefano Sabatini
the_end:
1795
    return ret;
1796
}
1797
1798
#endif  /* CONFIG_AVFILTER */
1799
1800
static int video_thread(void *arg)
1801
{
1802
    VideoState *is = arg;
1803
    AVFrame *frame= avcodec_alloc_frame();
1804
    int64_t pts_int;
1805
    double pts;
1806
    int ret;
1807
1808
#if CONFIG_AVFILTER
1809
    AVFilterGraph *graph = avfilter_graph_alloc();
1810
    AVFilterContext *filt_out = NULL;
1811
    int64_t pos;
1812
1813
    if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1814
        goto the_end;
1815
    filt_out = is->out_video_filter;
1816 917d2bb3 Michael Niedermayer
#endif
1817
1818
    for(;;) {
1819
#if !CONFIG_AVFILTER
1820
        AVPacket pkt;
1821 387b4ac9 Stefano Sabatini
#else
1822 ff0652e5 Stefano Sabatini
        AVFilterBufferRef *picref;
1823 387b4ac9 Stefano Sabatini
        AVRational tb;
1824 917d2bb3 Michael Niedermayer
#endif
1825
        while (is->paused && !is->videoq.abort_request)
1826
            SDL_Delay(10);
1827
#if CONFIG_AVFILTER
1828 ff0652e5 Stefano Sabatini
        ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1829
        if (picref) {
1830
            pts_int = picref->pts;
1831
            pos     = picref->pos;
1832
            frame->opaque = picref;
1833
        }
1834 387b4ac9 Stefano Sabatini
1835
        if (av_cmp_q(tb, is->video_st->time_base)) {
1836 13156f40 Stefano Sabatini
            av_unused int64_t pts1 = pts_int;
1837 387b4ac9 Stefano Sabatini
            pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1838 13156f40 Stefano Sabatini
            av_dlog(NULL, "video_thread(): "
1839
                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1840
                    tb.num, tb.den, pts1,
1841
                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1842 387b4ac9 Stefano Sabatini
        }
1843 917d2bb3 Michael Niedermayer
#else
1844
        ret = get_video_frame(is, frame, &pts_int, &pkt);
1845
#endif
1846
1847
        if (ret < 0) goto the_end;
1848
1849
        if (!ret)
1850
            continue;
1851
1852 3966a574 Michael Niedermayer
        pts = pts_int*av_q2d(is->video_st->time_base);
1853 917d2bb3 Michael Niedermayer
1854
#if CONFIG_AVFILTER
1855 bb409513 Stefano Sabatini
        ret = output_picture2(is, frame, pts, pos);
1856 917d2bb3 Michael Niedermayer
#else
1857 fca62599 Michael Niedermayer
        ret = output_picture2(is, frame, pts,  pkt.pos);
1858 917d2bb3 Michael Niedermayer
        av_free_packet(&pkt);
1859
#endif
1860
        if (ret < 0)
1861
            goto the_end;
1862
1863 115329f1 Diego Biurrun
        if (step)
1864 bba04f1e Wolfgang Hesseler
            if (cur_stream)
1865
                stream_pause(cur_stream);
1866 01310af2 Fabrice Bellard
    }
1867
 the_end:
1868 917d2bb3 Michael Niedermayer
#if CONFIG_AVFILTER
1869 4359288c Stefano Sabatini
    avfilter_graph_free(&graph);
1870 917d2bb3 Michael Niedermayer
#endif
1871 c6b1edc9 Michael Niedermayer
    av_free(frame);
1872 01310af2 Fabrice Bellard
    return 0;
1873
}
1874
1875 72ce053b Ian Caulfield
static int subtitle_thread(void *arg)
1876
{
1877
    VideoState *is = arg;
1878
    SubPicture *sp;
1879
    AVPacket pkt1, *pkt = &pkt1;
1880
    int len1, got_subtitle;
1881
    double pts;
1882
    int i, j;
1883
    int r, g, b, y, u, v, a;
1884
1885
    for(;;) {
1886
        while (is->paused && !is->subtitleq.abort_request) {
1887
            SDL_Delay(10);
1888
        }
1889
        if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1890
            break;
1891 115329f1 Diego Biurrun
1892 39c6a118 Michael Niedermayer
        if(pkt->data == flush_pkt.data){
1893
            avcodec_flush_buffers(is->subtitle_st->codec);
1894
            continue;
1895
        }
1896 72ce053b Ian Caulfield
        SDL_LockMutex(is->subpq_mutex);
1897
        while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1898
               !is->subtitleq.abort_request) {
1899
            SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1900
        }
1901
        SDL_UnlockMutex(is->subpq_mutex);
1902 115329f1 Diego Biurrun
1903 72ce053b Ian Caulfield
        if (is->subtitleq.abort_request)
1904
            goto the_end;
1905 115329f1 Diego Biurrun
1906 72ce053b Ian Caulfield
        sp = &is->subpq[is->subpq_windex];
1907
1908
       /* NOTE: ipts is the PTS of the _first_ picture beginning in
1909
           this packet, if any */
1910
        pts = 0;
1911
        if (pkt->pts != AV_NOPTS_VALUE)
1912
            pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1913
1914 bea18375 Thilo Borgmann
        len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1915 115329f1 Diego Biurrun
                                    &sp->sub, &got_subtitle,
1916 bea18375 Thilo Borgmann
                                    pkt);
1917 72ce053b Ian Caulfield
//            if (len1 < 0)
1918
//                break;
1919
        if (got_subtitle && sp->sub.format == 0) {
1920
            sp->pts = pts;
1921 115329f1 Diego Biurrun
1922 72ce053b Ian Caulfield
            for (i = 0; i < sp->sub.num_rects; i++)
1923
            {
1924 db4fac64 Michael Niedermayer
                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1925 72ce053b Ian Caulfield
                {
1926 25b4c651 Michael Niedermayer
                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1927 72ce053b Ian Caulfield
                    y = RGB_TO_Y_CCIR(r, g, b);
1928
                    u = RGB_TO_U_CCIR(r, g, b, 0);
1929
                    v = RGB_TO_V_CCIR(r, g, b, 0);
1930 25b4c651 Michael Niedermayer
                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1931 72ce053b Ian Caulfield
                }
1932
            }
1933
1934
            /* now we can update the picture count */
1935
            if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1936
                is->subpq_windex = 0;
1937
            SDL_LockMutex(is->subpq_mutex);
1938
            is->subpq_size++;
1939
            SDL_UnlockMutex(is->subpq_mutex);
1940
        }
1941
        av_free_packet(pkt);
1942 115329f1 Diego Biurrun
//        if (step)
1943 72ce053b Ian Caulfield
//            if (cur_stream)
1944
//                stream_pause(cur_stream);
1945
    }
1946
 the_end:
1947
    return 0;
1948
}
1949
1950 01310af2 Fabrice Bellard
/* copy samples for viewing in editor window */
1951
static void update_sample_display(VideoState *is, short *samples, int samples_size)
1952
{
1953
    int size, len, channels;
1954
1955 01f4895c Michael Niedermayer
    channels = is->audio_st->codec->channels;
1956 01310af2 Fabrice Bellard
1957
    size = samples_size / sizeof(short);
1958
    while (size > 0) {
1959
        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1960
        if (len > size)
1961
            len = size;
1962
        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1963
        samples += len;
1964
        is->sample_array_index += len;
1965
        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1966
            is->sample_array_index = 0;
1967
        size -= len;
1968
    }
1969
}
1970
1971
/* return the new audio buffer size (samples can be added or deleted
1972
   to get better sync if video or external master clock) */
1973 115329f1 Diego Biurrun
static int synchronize_audio(VideoState *is, short *samples,
1974 638c9d91 Fabrice Bellard
                             int samples_size1, double pts)
1975 01310af2 Fabrice Bellard
{
1976 638c9d91 Fabrice Bellard
    int n, samples_size;
1977 01310af2 Fabrice Bellard
    double ref_clock;
1978 115329f1 Diego Biurrun
1979 01f4895c Michael Niedermayer
    n = 2 * is->audio_st->codec->channels;
1980 638c9d91 Fabrice Bellard
    samples_size = samples_size1;
1981 01310af2 Fabrice Bellard
1982
    /* if not master, then we try to remove or add samples to correct the clock */
1983
    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1984 638c9d91 Fabrice Bellard
         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1985
        double diff, avg_diff;
1986 01310af2 Fabrice Bellard
        int wanted_size, min_size, max_size, nb_samples;
1987 115329f1 Diego Biurrun
1988 638c9d91 Fabrice Bellard
        ref_clock = get_master_clock(is);
1989
        diff = get_audio_clock(is) - ref_clock;
1990 115329f1 Diego Biurrun
1991 638c9d91 Fabrice Bellard
        if (diff < AV_NOSYNC_THRESHOLD) {
1992
            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1993
            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1994
                /* not enough measures to have a correct estimate */
1995
                is->audio_diff_avg_count++;
1996
            } else {
1997
                /* estimate the A-V difference */
1998
                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1999
2000
                if (fabs(avg_diff) >= is->audio_diff_threshold) {
2001 01f4895c Michael Niedermayer
                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2002 638c9d91 Fabrice Bellard
                    nb_samples = samples_size / n;
2003 115329f1 Diego Biurrun
2004 638c9d91 Fabrice Bellard
                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2005
                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2006
                    if (wanted_size < min_size)
2007
                        wanted_size = min_size;
2008
                    else if (wanted_size > max_size)
2009
                        wanted_size = max_size;
2010 115329f1 Diego Biurrun
2011 638c9d91 Fabrice Bellard
                    /* add or remove samples to correction the synchro */
2012
                    if (wanted_size < samples_size) {
2013
                        /* remove samples */
2014
                        samples_size = wanted_size;
2015
                    } else if (wanted_size > samples_size) {
2016
                        uint8_t *samples_end, *q;
2017
                        int nb;
2018 115329f1 Diego Biurrun
2019 638c9d91 Fabrice Bellard
                        /* add samples */
2020
                        nb = (samples_size - wanted_size);
2021
                        samples_end = (uint8_t *)samples + samples_size - n;
2022
                        q = samples_end + n;
2023
                        while (nb > 0) {
2024
                            memcpy(q, samples_end, n);
2025
                            q += n;
2026
                            nb -= n;
2027
                        }
2028
                        samples_size = wanted_size;
2029
                    }
2030
                }
2031
#if 0
2032 115329f1 Diego Biurrun
                printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2033
                       diff, avg_diff, samples_size - samples_size1,
2034 638c9d91 Fabrice Bellard
                       is->audio_clock, is->video_clock, is->audio_diff_threshold);
2035
#endif
2036 01310af2 Fabrice Bellard
            }
2037 638c9d91 Fabrice Bellard
        } else {
2038
            /* too big difference : may be initial PTS errors, so
2039
               reset A-V filter */
2040
            is->audio_diff_avg_count = 0;
2041
            is->audio_diff_cum = 0;
2042 01310af2 Fabrice Bellard
        }
2043
    }
2044
2045
    return samples_size;
2046
}
2047
2048
/* decode one audio frame and returns its uncompressed size */
2049 5a4476e2 Peter Ross
static int audio_decode_frame(VideoState *is, double *pts_ptr)
2050 01310af2 Fabrice Bellard
{
2051 bea18375 Thilo Borgmann
    AVPacket *pkt_temp = &is->audio_pkt_temp;
2052 01310af2 Fabrice Bellard
    AVPacket *pkt = &is->audio_pkt;
2053 abdff646 Peter Ross
    AVCodecContext *dec= is->audio_st->codec;
2054 72ea344b Fabrice Bellard
    int n, len1, data_size;
2055 01310af2 Fabrice Bellard
    double pts;
2056
2057
    for(;;) {
2058 72ea344b Fabrice Bellard
        /* NOTE: the audio packet can contain several frames */
2059 bea18375 Thilo Borgmann
        while (pkt_temp->size > 0) {
2060 5a4476e2 Peter Ross
            data_size = sizeof(is->audio_buf1);
2061 bea18375 Thilo Borgmann
            len1 = avcodec_decode_audio3(dec,
2062 5a4476e2 Peter Ross
                                        (int16_t *)is->audio_buf1, &data_size,
2063 bea18375 Thilo Borgmann
                                        pkt_temp);
2064 72ea344b Fabrice Bellard
            if (len1 < 0) {
2065
                /* if error, we skip the frame */
2066 bea18375 Thilo Borgmann
                pkt_temp->size = 0;
2067 01310af2 Fabrice Bellard
                break;
2068 72ea344b Fabrice Bellard
            }
2069 115329f1 Diego Biurrun
2070 bea18375 Thilo Borgmann
            pkt_temp->data += len1;
2071
            pkt_temp->size -= len1;
2072 72ea344b Fabrice Bellard
            if (data_size <= 0)
2073
                continue;
2074 5a4476e2 Peter Ross
2075
            if (dec->sample_fmt != is->audio_src_fmt) {
2076
                if (is->reformat_ctx)
2077
                    av_audio_convert_free(is->reformat_ctx);
2078 5d6e4c16 Stefano Sabatini
                is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2079 5a4476e2 Peter Ross
                                                         dec->sample_fmt, 1, NULL, 0);
2080
                if (!is->reformat_ctx) {
2081
                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2082 ba7d6e79 Stefano Sabatini
                        av_get_sample_fmt_name(dec->sample_fmt),
2083 5d6e4c16 Stefano Sabatini
                        av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2084 5a4476e2 Peter Ross
                        break;
2085
                }
2086
                is->audio_src_fmt= dec->sample_fmt;
2087
            }
2088
2089
            if (is->reformat_ctx) {
2090
                const void *ibuf[6]= {is->audio_buf1};
2091
                void *obuf[6]= {is->audio_buf2};
2092 ba7d6e79 Stefano Sabatini
                int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2093 5a4476e2 Peter Ross
                int ostride[6]= {2};
2094
                int len= data_size/istride[0];
2095
                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2096
                    printf("av_audio_convert() failed\n");
2097
                    break;
2098
                }
2099
                is->audio_buf= is->audio_buf2;
2100
                /* FIXME: existing code assume that data_size equals framesize*channels*2
2101
                          remove this legacy cruft */
2102
                data_size= len*2;
2103
            }else{
2104
                is->audio_buf= is->audio_buf1;
2105
            }
2106
2107 72ea344b Fabrice Bellard
            /* if no pts, then compute it */
2108
            pts = is->audio_clock;
2109
            *pts_ptr = pts;
2110 abdff646 Peter Ross
            n = 2 * dec->channels;
2111 115329f1 Diego Biurrun
            is->audio_clock += (double)data_size /
2112 abdff646 Peter Ross
                (double)(n * dec->sample_rate);
2113 638c9d91 Fabrice Bellard
#if defined(DEBUG_SYNC)
2114 72ea344b Fabrice Bellard
            {
2115
                static double last_clock;
2116
                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2117
                       is->audio_clock - last_clock,
2118
                       is->audio_clock, pts);
2119
                last_clock = is->audio_clock;
2120 01310af2 Fabrice Bellard
            }
2121 72ea344b Fabrice Bellard
#endif
2122
            return data_size;
2123 01310af2 Fabrice Bellard
        }
2124
2125 72ea344b Fabrice Bellard
        /* free the current packet */
2126
        if (pkt->data)
2127 01310af2 Fabrice Bellard
            av_free_packet(pkt);
2128 115329f1 Diego Biurrun
2129 72ea344b Fabrice Bellard
        if (is->paused || is->audioq.abort_request) {
2130
            return -1;
2131
        }
2132 115329f1 Diego Biurrun
2133 01310af2 Fabrice Bellard
        /* read next packet */
2134
        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2135
            return -1;
2136 39c6a118 Michael Niedermayer
        if(pkt->data == flush_pkt.data){
2137 abdff646 Peter Ross
            avcodec_flush_buffers(dec);
2138 39c6a118 Michael Niedermayer
            continue;
2139
        }
2140
2141 bea18375 Thilo Borgmann
        pkt_temp->data = pkt->data;
2142
        pkt_temp->size = pkt->size;
2143 115329f1 Diego Biurrun
2144 72ea344b Fabrice Bellard
        /* if update the audio clock with the pts */
2145
        if (pkt->pts != AV_NOPTS_VALUE) {
2146 c0df9d75 Michael Niedermayer
            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2147 72ea344b Fabrice Bellard
        }
2148 01310af2 Fabrice Bellard
    }
2149
}
2150
2151 638c9d91 Fabrice Bellard
/* get the current audio output buffer size, in samples. With SDL, we
2152
   cannot have a precise information */
2153
static int audio_write_get_buf_size(VideoState *is)
2154 01310af2 Fabrice Bellard
{
2155 b09b580b Ryan Martell
    return is->audio_buf_size - is->audio_buf_index;
2156 01310af2 Fabrice Bellard
}
2157
2158
2159
/* prepare a new audio buffer */
2160 358061f6 Diego Pettenò
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2161 01310af2 Fabrice Bellard
{
2162
    VideoState *is = opaque;
2163
    int audio_size, len1;
2164
    double pts;
2165
2166
    audio_callback_time = av_gettime();
2167 115329f1 Diego Biurrun
2168 01310af2 Fabrice Bellard
    while (len > 0) {
2169
        if (is->audio_buf_index >= is->audio_buf_size) {
2170 5a4476e2 Peter Ross
           audio_size = audio_decode_frame(is, &pts);
2171 01310af2 Fabrice Bellard
           if (audio_size < 0) {
2172
                /* if error, just output silence */
2173 1a1078fa Baptiste Coudurier
               is->audio_buf = is->audio_buf1;
2174 01310af2 Fabrice Bellard
               is->audio_buf_size = 1024;
2175
               memset(is->audio_buf, 0, is->audio_buf_size);
2176
           } else {
2177
               if (is->show_audio)
2178
                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2179 115329f1 Diego Biurrun
               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2180 01310af2 Fabrice Bellard
                                              pts);
2181
               is->audio_buf_size = audio_size;
2182
           }
2183
           is->audio_buf_index = 0;
2184
        }
2185
        len1 = is->audio_buf_size - is->audio_buf_index;
2186
        if (len1 > len)
2187
            len1 = len;
2188
        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2189
        len -= len1;
2190
        stream += len1;
2191
        is->audio_buf_index += len1;
2192
    }
2193
}
2194
2195
/* open a given stream. Return 0 if OK */
2196
static int stream_component_open(VideoState *is, int stream_index)
2197
{
2198
    AVFormatContext *ic = is->ic;
2199 fe74099a Stefano Sabatini
    AVCodecContext *avctx;
2200 01310af2 Fabrice Bellard
    AVCodec *codec;
2201
    SDL_AudioSpec wanted_spec, spec;
2202
2203
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2204
        return -1;
2205 fe74099a Stefano Sabatini
    avctx = ic->streams[stream_index]->codec;
2206 115329f1 Diego Biurrun
2207 01310af2 Fabrice Bellard
    /* prepare audio output */
2208 72415b2a Stefano Sabatini
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2209 fe74099a Stefano Sabatini
        if (avctx->channels > 0) {
2210
            avctx->request_channels = FFMIN(2, avctx->channels);
2211 94eadc8b Andreas Öman
        } else {
2212 fe74099a Stefano Sabatini
            avctx->request_channels = 2;
2213 638c9d91 Fabrice Bellard
        }
2214 01310af2 Fabrice Bellard
    }
2215
2216 fe74099a Stefano Sabatini
    codec = avcodec_find_decoder(avctx->codec_id);
2217
    avctx->debug_mv = debug_mv;
2218
    avctx->debug = debug;
2219
    avctx->workaround_bugs = workaround_bugs;
2220
    avctx->lowres = lowres;
2221
    if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2222
    avctx->idct_algo= idct;
2223
    if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2224
    avctx->skip_frame= skip_frame;
2225
    avctx->skip_idct= skip_idct;
2226
    avctx->skip_loop_filter= skip_loop_filter;
2227
    avctx->error_recognition= error_recognition;
2228
    avctx->error_concealment= error_concealment;
2229 c0b102ca Alexander Strange
    avctx->thread_count= thread_count;
2230 fe74099a Stefano Sabatini
2231 0093ebc2 Michael Niedermayer
    set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2232 e43d7a18 Michael Niedermayer
2233 01310af2 Fabrice Bellard
    if (!codec ||
2234 fe74099a Stefano Sabatini
        avcodec_open(avctx, codec) < 0)
2235 01310af2 Fabrice Bellard
        return -1;
2236 51b73087 Justin Ruggles
2237
    /* prepare audio output */
2238 72415b2a Stefano Sabatini
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2239 fe74099a Stefano Sabatini
        wanted_spec.freq = avctx->sample_rate;
2240 51b73087 Justin Ruggles
        wanted_spec.format = AUDIO_S16SYS;
2241 fe74099a Stefano Sabatini
        wanted_spec.channels = avctx->channels;
2242 51b73087 Justin Ruggles
        wanted_spec.silence = 0;
2243
        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2244
        wanted_spec.callback = sdl_audio_callback;
2245
        wanted_spec.userdata = is;
2246
        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2247
            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2248
            return -1;
2249
        }
2250
        is->audio_hw_buf_size = spec.size;
2251 5d6e4c16 Stefano Sabatini
        is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2252 51b73087 Justin Ruggles
    }
2253
2254 3f3fe38d Ronald S. Bultje
    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2255 fe74099a Stefano Sabatini
    switch(avctx->codec_type) {
2256 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_AUDIO:
2257 01310af2 Fabrice Bellard
        is->audio_stream = stream_index;
2258
        is->audio_st = ic->streams[stream_index];
2259
        is->audio_buf_size = 0;
2260
        is->audio_buf_index = 0;
2261 638c9d91 Fabrice Bellard
2262
        /* init averaging filter */
2263
        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2264
        is->audio_diff_avg_count = 0;
2265
        /* since we do not have a precise anough audio fifo fullness,
2266
           we correct audio sync only if larger than this threshold */
2267 fe74099a Stefano Sabatini
        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2268 638c9d91 Fabrice Bellard
2269 01310af2 Fabrice Bellard
        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2270
        packet_queue_init(&is->audioq);
2271 bb270c08 Diego Biurrun
        SDL_PauseAudio(0);
2272 01310af2 Fabrice Bellard
        break;
2273 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_VIDEO:
2274 01310af2 Fabrice Bellard
        is->video_stream = stream_index;
2275
        is->video_st = ic->streams[stream_index];
2276
2277 68aefbe8 Michael Niedermayer
//        is->video_current_pts_time = av_gettime();
2278 638c9d91 Fabrice Bellard
2279 01310af2 Fabrice Bellard
        packet_queue_init(&is->videoq);
2280
        is->video_tid = SDL_CreateThread(video_thread, is);
2281
        break;
2282 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_SUBTITLE:
2283 72ce053b Ian Caulfield
        is->subtitle_stream = stream_index;
2284
        is->subtitle_st = ic->streams[stream_index];
2285
        packet_queue_init(&is->subtitleq);
2286 115329f1 Diego Biurrun
2287 72ce053b Ian Caulfield
        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2288
        break;
2289 01310af2 Fabrice Bellard
    default:
2290
        break;
2291
    }
2292
    return 0;
2293
}
2294
2295
static void stream_component_close(VideoState *is, int stream_index)
2296
{
2297
    AVFormatContext *ic = is->ic;
2298 fe74099a Stefano Sabatini
    AVCodecContext *avctx;
2299 115329f1 Diego Biurrun
2300 72ce053b Ian Caulfield
    if (stream_index < 0 || stream_index >= ic->nb_streams)
2301
        return;
2302 fe74099a Stefano Sabatini
    avctx = ic->streams[stream_index]->codec;
2303 01310af2 Fabrice Bellard
2304 fe74099a Stefano Sabatini
    switch(avctx->codec_type) {
2305 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_AUDIO:
2306 01310af2 Fabrice Bellard
        packet_queue_abort(&is->audioq);
2307
2308
        SDL_CloseAudio();
2309
2310
        packet_queue_end(&is->audioq);
2311 5a4476e2 Peter Ross
        if (is->reformat_ctx)
2312
            av_audio_convert_free(is->reformat_ctx);
2313 bc77fce6 Ramiro Polla
        is->reformat_ctx = NULL;
2314 01310af2 Fabrice Bellard
        break;
2315 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_VIDEO:
2316 01310af2 Fabrice Bellard
        packet_queue_abort(&is->videoq);
2317
2318
        /* note: we also signal this mutex to make sure we deblock the
2319
           video thread in all cases */
2320
        SDL_LockMutex(is->pictq_mutex);
2321
        SDL_CondSignal(is->pictq_cond);
2322
        SDL_UnlockMutex(is->pictq_mutex);
2323
2324
        SDL_WaitThread(is->video_tid, NULL);
2325
2326
        packet_queue_end(&is->videoq);
2327
        break;
2328 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_SUBTITLE:
2329 72ce053b Ian Caulfield
        packet_queue_abort(&is->subtitleq);
2330 115329f1 Diego Biurrun
2331 72ce053b Ian Caulfield
        /* note: we also signal this mutex to make sure we deblock the
2332
           video thread in all cases */
2333
        SDL_LockMutex(is->subpq_mutex);
2334
        is->subtitle_stream_changed = 1;
2335 115329f1 Diego Biurrun
2336 72ce053b Ian Caulfield
        SDL_CondSignal(is->subpq_cond);
2337
        SDL_UnlockMutex(is->subpq_mutex);
2338
2339
        SDL_WaitThread(is->subtitle_tid, NULL);
2340
2341
        packet_queue_end(&is->subtitleq);
2342
        break;
2343 01310af2 Fabrice Bellard
    default:
2344
        break;
2345
    }
2346
2347 3f3fe38d Ronald S. Bultje
    ic->streams[stream_index]->discard = AVDISCARD_ALL;
2348 fe74099a Stefano Sabatini
    avcodec_close(avctx);
2349
    switch(avctx->codec_type) {
2350 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_AUDIO:
2351 01310af2 Fabrice Bellard
        is->audio_st = NULL;
2352
        is->audio_stream = -1;
2353
        break;
2354 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_VIDEO:
2355 01310af2 Fabrice Bellard
        is->video_st = NULL;
2356
        is->video_stream = -1;
2357
        break;
2358 72415b2a Stefano Sabatini
    case AVMEDIA_TYPE_SUBTITLE:
2359 72ce053b Ian Caulfield
        is->subtitle_st = NULL;
2360
        is->subtitle_stream = -1;
2361
        break;
2362 01310af2 Fabrice Bellard
    default:
2363
        break;
2364
    }
2365
}
2366
2367 416e3508 Fabrice Bellard
/* since we have only one decoding thread, we can use a global
2368
   variable instead of a thread local variable */
2369
static VideoState *global_video_state;
2370
2371
static int decode_interrupt_cb(void)
2372
{
2373
    return (global_video_state && global_video_state->abort_request);
2374
}
2375 01310af2 Fabrice Bellard
2376
/* this thread gets the stream from the disk or the network */
2377
static int decode_thread(void *arg)
2378
{
2379
    VideoState *is = arg;
2380
    AVFormatContext *ic;
2381 6625a3de Michael Niedermayer
    int err, i, ret;
2382 72415b2a Stefano Sabatini
    int st_index[AVMEDIA_TYPE_NB];
2383 01310af2 Fabrice Bellard
    AVPacket pkt1, *pkt = &pkt1;
2384 61890b02 Fabrice Bellard
    AVFormatParameters params, *ap = &params;
2385 75bb7b0a Michael Niedermayer
    int eof=0;
2386 d834d63b Robert Krüger
    int pkt_in_play_range = 0;
2387 01310af2 Fabrice Bellard
2388 6299a229 Michael Niedermayer
    ic = avformat_alloc_context();
2389
2390 6625a3de Michael Niedermayer
    memset(st_index, -1, sizeof(st_index));
2391 01310af2 Fabrice Bellard
    is->video_stream = -1;
2392
    is->audio_stream = -1;
2393 72ce053b Ian Caulfield
    is->subtitle_stream = -1;
2394 01310af2 Fabrice Bellard
2395 416e3508 Fabrice Bellard
    global_video_state = is;
2396 80c6e238 Anton Khirnov
    avio_set_interrupt_cb(decode_interrupt_cb);
2397 416e3508 Fabrice Bellard
2398 61890b02 Fabrice Bellard
    memset(ap, 0, sizeof(*ap));
2399 115329f1 Diego Biurrun
2400 6299a229 Michael Niedermayer
    ap->prealloced_context = 1;
2401 e4b89522 Limin Wang
    ap->width = frame_width;
2402
    ap->height= frame_height;
2403 7e042912 Michael Niedermayer
    ap->time_base= (AVRational){1, 25};
2404 e4b89522 Limin Wang
    ap->pix_fmt = frame_pix_fmt;
2405 7e042912 Michael Niedermayer
2406 0093ebc2 Michael Niedermayer
    set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2407 6299a229 Michael Niedermayer
2408 61890b02 Fabrice Bellard
    err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2409 638c9d91 Fabrice Bellard
    if (err < 0) {
2410
        print_error(is->filename, err);
2411
        ret = -1;
2412
        goto fail;
2413
    }
2414 01310af2 Fabrice Bellard
    is->ic = ic;
2415 30bc6613 Michael Niedermayer
2416
    if(genpts)
2417
        ic->flags |= AVFMT_FLAG_GENPTS;
2418
2419 24c07998 Luca Abeni
    err = av_find_stream_info(ic);
2420
    if (err < 0) {
2421
        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2422
        ret = -1;
2423
        goto fail;
2424
    }
2425 899681cd Björn Axelsson
    if(ic->pb)
2426
        ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2427 72ea344b Fabrice Bellard
2428 70a4764d Michael Niedermayer
    if(seek_by_bytes<0)
2429
        seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2430
2431 72ea344b Fabrice Bellard
    /* if seeking requested, we execute it */
2432
    if (start_time != AV_NOPTS_VALUE) {
2433
        int64_t timestamp;
2434
2435
        timestamp = start_time;
2436
        /* add the stream start time */
2437
        if (ic->start_time != AV_NOPTS_VALUE)
2438
            timestamp += ic->start_time;
2439 4ed29207 Michael Niedermayer
        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2440 72ea344b Fabrice Bellard
        if (ret < 0) {
2441 115329f1 Diego Biurrun
            fprintf(stderr, "%s: could not seek to position %0.3f\n",
2442 72ea344b Fabrice Bellard
                    is->filename, (double)timestamp / AV_TIME_BASE);
2443
        }
2444
    }
2445
2446 406f0f1b Nicolas George
    for (i = 0; i < ic->nb_streams; i++)
2447 3f3fe38d Ronald S. Bultje
        ic->streams[i]->discard = AVDISCARD_ALL;
2448 be732b70 Nicolas George
    if (!video_disable)
2449 406f0f1b Nicolas George
        st_index[AVMEDIA_TYPE_VIDEO] =
2450
            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2451
                                wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2452 be732b70 Nicolas George
    if (!audio_disable)
2453 406f0f1b Nicolas George
        st_index[AVMEDIA_TYPE_AUDIO] =
2454
            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2455
                                wanted_stream[AVMEDIA_TYPE_AUDIO],
2456
                                st_index[AVMEDIA_TYPE_VIDEO],
2457
                                NULL, 0);
2458 be732b70 Nicolas George
    if (!video_disable)
2459 406f0f1b Nicolas George
        st_index[AVMEDIA_TYPE_SUBTITLE] =
2460
            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2461
                                wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2462
                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2463
                                 st_index[AVMEDIA_TYPE_AUDIO] :
2464
                                 st_index[AVMEDIA_TYPE_VIDEO]),
2465
                                NULL, 0);
2466 01310af2 Fabrice Bellard
    if (show_status) {
2467 610219a5 Anton Khirnov
        av_dump_format(ic, 0, is->filename, 0);
2468 01310af2 Fabrice Bellard
    }
2469
2470
    /* open the streams */
2471 72415b2a Stefano Sabatini
    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2472
        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2473 01310af2 Fabrice Bellard
    }
2474
2475 077a8d61 Michael Niedermayer
    ret=-1;
2476 72415b2a Stefano Sabatini
    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2477
        ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2478 077a8d61 Michael Niedermayer
    }
2479 d38c9e7a Michael Niedermayer
    is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2480 077a8d61 Michael Niedermayer
    if(ret<0) {
2481 01310af2 Fabrice Bellard
        if (!display_disable)
2482 bf8ae197 Michael Niedermayer
            is->show_audio = 2;
2483 01310af2 Fabrice Bellard
    }
2484
2485 72415b2a Stefano Sabatini
    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2486
        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2487 16a59a7b Björn Axelsson
    }
2488
2489 01310af2 Fabrice Bellard
    if (is->video_stream < 0 && is->audio_stream < 0) {
2490 638c9d91 Fabrice Bellard
        fprintf(stderr, "%s: could not open codecs\n", is->filename);
2491
        ret = -1;
2492 01310af2 Fabrice Bellard
        goto fail;
2493
    }
2494
2495
    for(;;) {
2496
        if (is->abort_request)
2497
            break;
2498 416e3508 Fabrice Bellard
        if (is->paused != is->last_paused) {
2499
            is->last_paused = is->paused;
2500 72ea344b Fabrice Bellard
            if (is->paused)
2501 f5668147 Michael Niedermayer
                is->read_pause_return= av_read_pause(ic);
2502 72ea344b Fabrice Bellard
            else
2503
                av_read_play(ic);
2504 416e3508 Fabrice Bellard
        }
2505 2f642393 Aurelien Jacobs
#if CONFIG_RTSP_DEMUXER
2506
        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2507 416e3508 Fabrice Bellard
            /* wait 10 ms to avoid trying to get another packet */
2508
            /* XXX: horrible */
2509
            SDL_Delay(10);
2510
            continue;
2511
        }
2512 400738b1 Michael Niedermayer
#endif
2513 72ea344b Fabrice Bellard
        if (is->seek_req) {
2514 8e606cc8 Michael Niedermayer
            int64_t seek_target= is->seek_pos;
2515 4ed29207 Michael Niedermayer
            int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2516
            int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2517
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
2518
//      of the seek_pos/seek_rel variables
2519 8e606cc8 Michael Niedermayer
2520 4ed29207 Michael Niedermayer
            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2521 72ea344b Fabrice Bellard
            if (ret < 0) {
2522
                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2523 e6c0297f Michael Niedermayer
            }else{
2524
                if (is->audio_stream >= 0) {
2525
                    packet_queue_flush(&is->audioq);
2526 39c6a118 Michael Niedermayer
                    packet_queue_put(&is->audioq, &flush_pkt);
2527 e6c0297f Michael Niedermayer
                }
2528 72ce053b Ian Caulfield
                if (is->subtitle_stream >= 0) {
2529
                    packet_queue_flush(&is->subtitleq);
2530 39c6a118 Michael Niedermayer
                    packet_queue_put(&is->subtitleq, &flush_pkt);
2531 72ce053b Ian Caulfield
                }
2532 e6c0297f Michael Niedermayer
                if (is->video_stream >= 0) {
2533
                    packet_queue_flush(&is->videoq);
2534 39c6a118 Michael Niedermayer
                    packet_queue_put(&is->videoq, &flush_pkt);
2535 e6c0297f Michael Niedermayer
                }
2536 72ea344b Fabrice Bellard
            }
2537
            is->seek_req = 0;
2538 e45aeb38 Michael Niedermayer
            eof= 0;
2539 72ea344b Fabrice Bellard
        }
2540 416e3508 Fabrice Bellard
2541 01310af2 Fabrice Bellard
        /* if the queue are full, no need to read more */
2542 79ee4683 Michael Niedermayer
        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2543
            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2544
                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
2545
                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2546 01310af2 Fabrice Bellard
            /* wait 10 ms */
2547
            SDL_Delay(10);
2548
            continue;
2549
        }
2550 27d97fde Michael Chinen
        if(eof) {
2551 9dc41767 Michael Niedermayer
            if(is->video_stream >= 0){
2552 26534fe8 Michael Niedermayer
                av_init_packet(pkt);
2553
                pkt->data=NULL;
2554
                pkt->size=0;
2555
                pkt->stream_index= is->video_stream;
2556
                packet_queue_put(&is->videoq, pkt);
2557 9dc41767 Michael Niedermayer
            }
2558 b4083171 Michael Niedermayer
            SDL_Delay(10);
2559 1922c0a7 Robert Krüger
            if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2560
                if(loop!=1 && (!loop || --loop)){
2561
                    stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2562
                }else if(autoexit){
2563
                    ret=AVERROR_EOF;
2564
                    goto fail;
2565
                }
2566 2d1653b0 Michael Niedermayer
            }
2567 600a331c Michael Niedermayer
            continue;
2568
        }
2569 72ea344b Fabrice Bellard
        ret = av_read_frame(ic, pkt);
2570 01310af2 Fabrice Bellard
        if (ret < 0) {
2571 648c7962 Martin Storsjö
            if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
2572 75bb7b0a Michael Niedermayer
                eof=1;
2573 648c7962 Martin Storsjö
            if (ic->pb && ic->pb->error)
2574 bb270c08 Diego Biurrun
                break;
2575 75bb7b0a Michael Niedermayer
            SDL_Delay(100); /* wait for user event */
2576
            continue;
2577 01310af2 Fabrice Bellard
        }
2578 d834d63b Robert Krüger
        /* check if packet is in play range specified by user, then queue, otherwise discard */
2579
        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2580
                (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2581
                av_q2d(ic->streams[pkt->stream_index]->time_base) -
2582
                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2583
                <= ((double)duration/1000000);
2584
        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2585 01310af2 Fabrice Bellard
            packet_queue_put(&is->audioq, pkt);
2586 d834d63b Robert Krüger
        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2587 01310af2 Fabrice Bellard
            packet_queue_put(&is->videoq, pkt);
2588 d834d63b Robert Krüger
        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2589 72ce053b Ian Caulfield
            packet_queue_put(&is->subtitleq, pkt);
2590 01310af2 Fabrice Bellard
        } else {
2591
            av_free_packet(pkt);
2592
        }
2593
    }
2594
    /* wait until the end */
2595
    while (!is->abort_request) {
2596
        SDL_Delay(100);
2597
    }
2598
2599 638c9d91 Fabrice Bellard
    ret = 0;
2600 01310af2 Fabrice Bellard
 fail:
2601 416e3508 Fabrice Bellard
    /* disable interrupting */
2602
    global_video_state = NULL;
2603
2604 01310af2 Fabrice Bellard
    /* close each stream */
2605
    if (is->audio_stream >= 0)
2606
        stream_component_close(is, is->audio_stream);
2607
    if (is->video_stream >= 0)
2608
        stream_component_close(is, is->video_stream);
2609 72ce053b Ian Caulfield
    if (is->subtitle_stream >= 0)
2610
        stream_component_close(is, is->subtitle_stream);
2611 638c9d91 Fabrice Bellard
    if (is->ic) {
2612
        av_close_input_file(is->ic);
2613
        is->ic = NULL; /* safety */
2614
    }
2615 80c6e238 Anton Khirnov
    avio_set_interrupt_cb(NULL);
2616 416e3508 Fabrice Bellard
2617 638c9d91 Fabrice Bellard
    if (ret != 0) {
2618
        SDL_Event event;
2619 115329f1 Diego Biurrun
2620 638c9d91 Fabrice Bellard
        event.type = FF_QUIT_EVENT;
2621
        event.user.data1 = is;
2622
        SDL_PushEvent(&event);
2623
    }
2624 01310af2 Fabrice Bellard
    return 0;
2625
}
2626
2627 638c9d91 Fabrice Bellard
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2628 01310af2 Fabrice Bellard
{
2629
    VideoState *is;
2630
2631
    is = av_mallocz(sizeof(VideoState));
2632
    if (!is)
2633
        return NULL;
2634 f7d78f36 Måns Rullgård
    av_strlcpy(is->filename, filename, sizeof(is->filename));
2635 638c9d91 Fabrice Bellard
    is->iformat = iformat;
2636 01310af2 Fabrice Bellard
    is->ytop = 0;
2637
    is->xleft = 0;
2638
2639
    /* start video display */
2640
    is->pictq_mutex = SDL_CreateMutex();
2641
    is->pictq_cond = SDL_CreateCond();
2642 115329f1 Diego Biurrun
2643 72ce053b Ian Caulfield
    is->subpq_mutex = SDL_CreateMutex();
2644
    is->subpq_cond = SDL_CreateCond();
2645 115329f1 Diego Biurrun
2646 638c9d91 Fabrice Bellard
    is->av_sync_type = av_sync_type;
2647 01310af2 Fabrice Bellard
    is->parse_tid = SDL_CreateThread(decode_thread, is);
2648
    if (!is->parse_tid) {
2649
        av_free(is);
2650
        return NULL;
2651
    }
2652
    return is;
2653
}
2654
2655 7b49ce2e Stefan Huehner
static void stream_cycle_channel(VideoState *is, int codec_type)
2656 638c9d91 Fabrice Bellard
{
2657
    AVFormatContext *ic = is->ic;
2658
    int start_index, stream_index;
2659
    AVStream *st;
2660
2661 72415b2a Stefano Sabatini
    if (codec_type == AVMEDIA_TYPE_VIDEO)
2662 638c9d91 Fabrice Bellard
        start_index = is->video_stream;
2663 72415b2a Stefano Sabatini
    else if (codec_type == AVMEDIA_TYPE_AUDIO)
2664 638c9d91 Fabrice Bellard
        start_index = is->audio_stream;
2665 72ce053b Ian Caulfield
    else
2666
        start_index = is->subtitle_stream;
2667 72415b2a Stefano Sabatini
    if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2668 638c9d91 Fabrice Bellard
        return;
2669
    stream_index = start_index;
2670
    for(;;) {
2671
        if (++stream_index >= is->ic->nb_streams)
2672 72ce053b Ian Caulfield
        {
2673 72415b2a Stefano Sabatini
            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2674 72ce053b Ian Caulfield
            {
2675
                stream_index = -1;
2676
                goto the_end;
2677
            } else
2678
                stream_index = 0;
2679
        }
2680 638c9d91 Fabrice Bellard
        if (stream_index == start_index)
2681
            return;
2682
        st = ic->streams[stream_index];
2683 01f4895c Michael Niedermayer
        if (st->codec->codec_type == codec_type) {
2684 638c9d91 Fabrice Bellard
            /* check that parameters are OK */
2685
            switch(codec_type) {
2686 72415b2a Stefano Sabatini
            case AVMEDIA_TYPE_AUDIO:
2687 01f4895c Michael Niedermayer
                if (st->codec->sample_rate != 0 &&
2688
                    st->codec->channels != 0)
2689 638c9d91 Fabrice Bellard
                    goto the_end;
2690
                break;
2691 72415b2a Stefano Sabatini
            case AVMEDIA_TYPE_VIDEO:
2692
            case AVMEDIA_TYPE_SUBTITLE:
2693 638c9d91 Fabrice Bellard
                goto the_end;
2694
            default:
2695
                break;
2696
            }
2697
        }
2698
    }
2699
 the_end:
2700
    stream_component_close(is, start_index);
2701
    stream_component_open(is, stream_index);
2702
}
2703
2704
2705 7b49ce2e Stefan Huehner
static void toggle_full_screen(void)
2706 01310af2 Fabrice Bellard
{
2707
    is_full_screen = !is_full_screen;
2708 29f3b38a Måns Rullgård
    if (!fs_screen_width) {
2709
        /* use default SDL method */
2710 fb84155b Michael Niedermayer
//        SDL_WM_ToggleFullScreen(screen);
2711 01310af2 Fabrice Bellard
    }
2712 fb84155b Michael Niedermayer
    video_open(cur_stream);
2713 01310af2 Fabrice Bellard
}
2714
2715 7b49ce2e Stefan Huehner
static void toggle_pause(void)
2716 01310af2 Fabrice Bellard
{
2717
    if (cur_stream)
2718
        stream_pause(cur_stream);
2719 bba04f1e Wolfgang Hesseler
    step = 0;
2720
}
2721
2722 7b49ce2e Stefan Huehner
static void step_to_next_frame(void)
2723 bba04f1e Wolfgang Hesseler
{
2724
    if (cur_stream) {
2725 19cc524a Craig Nicol
        /* if the stream is paused unpause it, then step */
2726 bba04f1e Wolfgang Hesseler
        if (cur_stream->paused)
2727 19cc524a Craig Nicol
            stream_pause(cur_stream);
2728 bba04f1e Wolfgang Hesseler
    }
2729
    step = 1;
2730 01310af2 Fabrice Bellard
}
2731
2732 7b49ce2e Stefan Huehner
static void toggle_audio_display(void)
2733 01310af2 Fabrice Bellard
{
2734
    if (cur_stream) {
2735 f5968788 Michael Niedermayer
        int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2736 12eeda34 Michael Niedermayer
        cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2737 f5968788 Michael Niedermayer
        fill_rectangle(screen,
2738
                    cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2739
                    bgcolor);
2740
        SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2741 01310af2 Fabrice Bellard
    }
2742
}
2743
2744
/* handle an event sent by the GUI */
2745 7b49ce2e Stefan Huehner
static void event_loop(void)
2746 01310af2 Fabrice Bellard
{
2747
    SDL_Event event;
2748 a11d11aa Michel Bardiaux
    double incr, pos, frac;
2749 01310af2 Fabrice Bellard
2750
    for(;;) {
2751 d52ec002 Michael Niedermayer
        double x;
2752 01310af2 Fabrice Bellard
        SDL_WaitEvent(&event);
2753
        switch(event.type) {
2754
        case SDL_KEYDOWN:
2755 066ce8c9 Alexei Svitkine
            if (exit_on_keydown) {
2756
                do_exit();
2757
                break;
2758
            }
2759 01310af2 Fabrice Bellard
            switch(event.key.keysym.sym) {
2760
            case SDLK_ESCAPE:
2761
            case SDLK_q:
2762
                do_exit();
2763
                break;
2764
            case SDLK_f:
2765
                toggle_full_screen();
2766
                break;
2767
            case SDLK_p:
2768
            case SDLK_SPACE:
2769
                toggle_pause();
2770
                break;
2771 bba04f1e Wolfgang Hesseler
            case SDLK_s: //S: Step to next frame
2772
                step_to_next_frame();
2773
                break;
2774 01310af2 Fabrice Bellard
            case SDLK_a:
2775 115329f1 Diego Biurrun
                if (cur_stream)
2776 72415b2a Stefano Sabatini
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2777 638c9d91 Fabrice Bellard
                break;
2778
            case SDLK_v:
2779 115329f1 Diego Biurrun
                if (cur_stream)
2780 72415b2a Stefano Sabatini
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2781 638c9d91 Fabrice Bellard
                break;
2782 72ce053b Ian Caulfield
            case SDLK_t:
2783 115329f1 Diego Biurrun
                if (cur_stream)
2784 72415b2a Stefano Sabatini
                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2785 72ce053b Ian Caulfield
                break;
2786 638c9d91 Fabrice Bellard
            case SDLK_w:
2787 01310af2 Fabrice Bellard
                toggle_audio_display();
2788
                break;
2789 72ea344b Fabrice Bellard
            case SDLK_LEFT:
2790
                incr = -10.0;
2791
                goto do_seek;
2792
            case SDLK_RIGHT:
2793
                incr = 10.0;
2794
                goto do_seek;
2795
            case SDLK_UP:
2796
                incr = 60.0;
2797
                goto do_seek;
2798
            case SDLK_DOWN:
2799
                incr = -60.0;
2800
            do_seek:
2801
                if (cur_stream) {
2802 94b594c6 Steve L'Homme
                    if (seek_by_bytes) {
2803 1a620dd7 Michael Niedermayer
                        if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2804
                            pos= cur_stream->video_current_pos;
2805
                        }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2806
                            pos= cur_stream->audio_pkt.pos;
2807
                        }else
2808 a2704c97 Anton Khirnov
                            pos = avio_tell(cur_stream->ic->pb);
2809 94b594c6 Steve L'Homme
                        if (cur_stream->ic->bit_rate)
2810 566cd2cb Michael Niedermayer
                            incr *= cur_stream->ic->bit_rate / 8.0;
2811 94b594c6 Steve L'Homme
                        else
2812
                            incr *= 180000.0;
2813
                        pos += incr;
2814 2ef46053 Michael Niedermayer
                        stream_seek(cur_stream, pos, incr, 1);
2815 94b594c6 Steve L'Homme
                    } else {