2 * FFplay : Simple Media Player based on the ffmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * 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.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "libavutil/avstring.h"
26 #include "libavutil/pixdesc.h"
27 #include "libavformat/avformat.h"
28 #include "libavdevice/avdevice.h"
29 #include "libswscale/swscale.h"
30 #include "libavcodec/audioconvert.h"
31 #include "libavcodec/colorspace.h"
32 #include "libavcodec/opt.h"
37 #include <SDL_thread.h>
40 #undef main /* We don't want SDL to override our main() */
47 const char program_name[] = "FFplay";
48 const int program_birth_year = 2003;
52 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
53 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
56 /* SDL audio buffer size, in samples. Should be small to have precise
57 A/V sync as SDL does not have hardware buffer fullness info. */
58 #define SDL_AUDIO_BUFFER_SIZE 1024
60 /* no AV sync correction is done if below the AV sync threshold */
61 #define AV_SYNC_THRESHOLD 0.01
62 /* no AV correction is done if too big error */
63 #define AV_NOSYNC_THRESHOLD 10.0
65 /* maximum audio speed change to get correct sync */
66 #define SAMPLE_CORRECTION_PERCENT_MAX 10
68 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
69 #define AUDIO_DIFF_AVG_NB 20
71 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
72 #define SAMPLE_ARRAY_SIZE (2*65536)
74 static int sws_flags = SWS_BICUBIC;
76 typedef struct PacketQueue {
77 AVPacketList *first_pkt, *last_pkt;
85 #define VIDEO_PICTURE_QUEUE_SIZE 1
86 #define SUBPICTURE_QUEUE_SIZE 4
88 typedef struct VideoPicture {
89 double pts; ///<presentation time stamp for this picture
91 int width, height; /* source height & width */
96 typedef struct SubPicture {
97 double pts; /* presentation time stamp for this picture */
102 AV_SYNC_AUDIO_MASTER, /* default choice */
103 AV_SYNC_VIDEO_MASTER,
104 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
107 typedef struct VideoState {
108 SDL_Thread *parse_tid;
109 SDL_Thread *video_tid;
110 AVInputFormat *iformat;
119 int read_pause_return;
121 int dtg_active_format;
126 double external_clock; /* external clock base */
127 int64_t external_clock_time;
130 double audio_diff_cum; /* used for AV difference average computation */
131 double audio_diff_avg_coef;
132 double audio_diff_threshold;
133 int audio_diff_avg_count;
136 int audio_hw_buf_size;
137 /* samples output by the codec. we reserve more space for avsync
139 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
140 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
142 unsigned int audio_buf_size; /* in bytes */
143 int audio_buf_index; /* in bytes */
144 AVPacket audio_pkt_temp;
146 enum SampleFormat audio_src_fmt;
147 AVAudioConvert *reformat_ctx;
149 int show_audio; /* if true, display audio samples */
150 int16_t sample_array[SAMPLE_ARRAY_SIZE];
151 int sample_array_index;
154 SDL_Thread *subtitle_tid;
156 int subtitle_stream_changed;
157 AVStream *subtitle_st;
158 PacketQueue subtitleq;
159 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
160 int subpq_size, subpq_rindex, subpq_windex;
161 SDL_mutex *subpq_mutex;
162 SDL_cond *subpq_cond;
165 double frame_last_pts;
166 double frame_last_delay;
167 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
171 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
172 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
173 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
174 int pictq_size, pictq_rindex, pictq_windex;
175 SDL_mutex *pictq_mutex;
176 SDL_cond *pictq_cond;
177 struct SwsContext *img_convert_ctx;
179 // QETimer *video_timer;
181 int width, height, xleft, ytop;
185 int64_t last_dts_for_fault_detection;
186 int64_t last_pts_for_fault_detection;
190 static void show_help(void);
191 static int audio_write_get_buf_size(VideoState *is);
193 /* options specified by the user */
194 static AVInputFormat *file_iformat;
195 static const char *input_filename;
196 static int fs_screen_width;
197 static int fs_screen_height;
198 static int screen_width = 0;
199 static int screen_height = 0;
200 static int frame_width = 0;
201 static int frame_height = 0;
202 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
203 static int audio_disable;
204 static int video_disable;
205 static int wanted_audio_stream= 0;
206 static int wanted_video_stream= 0;
207 static int wanted_subtitle_stream= -1;
208 static int seek_by_bytes;
209 static int display_disable;
210 static int show_status = 1;
211 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
212 static int64_t start_time = AV_NOPTS_VALUE;
213 static int debug = 0;
214 static int debug_mv = 0;
216 static int thread_count = 1;
217 static int workaround_bugs = 1;
219 static int genpts = 0;
220 static int lowres = 0;
221 static int idct = FF_IDCT_AUTO;
222 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
223 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
224 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
225 static int error_recognition = FF_ER_CAREFUL;
226 static int error_concealment = 3;
227 static int decoder_reorder_pts= -1;
229 /* current context */
230 static int is_full_screen;
231 static VideoState *cur_stream;
232 static int64_t audio_callback_time;
234 static AVPacket flush_pkt;
236 #define FF_ALLOC_EVENT (SDL_USEREVENT)
237 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
238 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
240 static SDL_Surface *screen;
242 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
244 /* packet queue handling */
245 static void packet_queue_init(PacketQueue *q)
247 memset(q, 0, sizeof(PacketQueue));
248 q->mutex = SDL_CreateMutex();
249 q->cond = SDL_CreateCond();
250 packet_queue_put(q, &flush_pkt);
253 static void packet_queue_flush(PacketQueue *q)
255 AVPacketList *pkt, *pkt1;
257 SDL_LockMutex(q->mutex);
258 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
260 av_free_packet(&pkt->pkt);
267 SDL_UnlockMutex(q->mutex);
270 static void packet_queue_end(PacketQueue *q)
272 packet_queue_flush(q);
273 SDL_DestroyMutex(q->mutex);
274 SDL_DestroyCond(q->cond);
277 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
281 /* duplicate the packet */
282 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
285 pkt1 = av_malloc(sizeof(AVPacketList));
292 SDL_LockMutex(q->mutex);
298 q->last_pkt->next = pkt1;
301 q->size += pkt1->pkt.size + sizeof(*pkt1);
302 /* XXX: should duplicate packet data in DV case */
303 SDL_CondSignal(q->cond);
305 SDL_UnlockMutex(q->mutex);
309 static void packet_queue_abort(PacketQueue *q)
311 SDL_LockMutex(q->mutex);
313 q->abort_request = 1;
315 SDL_CondSignal(q->cond);
317 SDL_UnlockMutex(q->mutex);
320 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
321 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
326 SDL_LockMutex(q->mutex);
329 if (q->abort_request) {
336 q->first_pkt = pkt1->next;
340 q->size -= pkt1->pkt.size + sizeof(*pkt1);
349 SDL_CondWait(q->cond, q->mutex);
352 SDL_UnlockMutex(q->mutex);
356 static inline void fill_rectangle(SDL_Surface *screen,
357 int x, int y, int w, int h, int color)
364 SDL_FillRect(screen, &rect, color);
368 /* draw only the border of a rectangle */
369 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
373 /* fill the background */
377 w2 = s->width - (x + w);
383 h2 = s->height - (y + h);
386 fill_rectangle(screen,
390 fill_rectangle(screen,
391 s->xleft + s->width - w2, s->ytop,
394 fill_rectangle(screen,
395 s->xleft + w1, s->ytop,
396 s->width - w1 - w2, h1,
398 fill_rectangle(screen,
399 s->xleft + w1, s->ytop + s->height - h2,
400 s->width - w1 - w2, h2,
405 #define ALPHA_BLEND(a, oldp, newp, s)\
406 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
408 #define RGBA_IN(r, g, b, a, s)\
410 unsigned int v = ((const uint32_t *)(s))[0];\
411 a = (v >> 24) & 0xff;\
412 r = (v >> 16) & 0xff;\
413 g = (v >> 8) & 0xff;\
417 #define YUVA_IN(y, u, v, a, s, pal)\
419 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
420 a = (val >> 24) & 0xff;\
421 y = (val >> 16) & 0xff;\
422 u = (val >> 8) & 0xff;\
426 #define YUVA_OUT(d, y, u, v, a)\
428 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
434 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
436 int wrap, wrap3, width2, skip2;
437 int y, u, v, a, u1, v1, a1, w, h;
438 uint8_t *lum, *cb, *cr;
441 int dstx, dsty, dstw, dsth;
443 dstw = av_clip(rect->w, 0, imgw);
444 dsth = av_clip(rect->h, 0, imgh);
445 dstx = av_clip(rect->x, 0, imgw - dstw);
446 dsty = av_clip(rect->y, 0, imgh - dsth);
447 lum = dst->data[0] + dsty * dst->linesize[0];
448 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
449 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
451 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
453 wrap = dst->linesize[0];
454 wrap3 = rect->pict.linesize[0];
455 p = rect->pict.data[0];
456 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
464 YUVA_IN(y, u, v, a, p, pal);
465 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
466 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
467 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
473 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
474 YUVA_IN(y, u, v, a, p, pal);
478 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
480 YUVA_IN(y, u, v, a, p + BPP, pal);
484 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
485 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
486 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
493 YUVA_IN(y, u, v, a, p, pal);
494 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
495 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
496 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
500 p += wrap3 - dstw * BPP;
501 lum += wrap - dstw - dstx;
502 cb += dst->linesize[1] - width2 - skip2;
503 cr += dst->linesize[2] - width2 - skip2;
505 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
511 YUVA_IN(y, u, v, a, p, pal);
515 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
518 YUVA_IN(y, u, v, a, p, pal);
522 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
523 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
524 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
530 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
531 YUVA_IN(y, u, v, a, p, pal);
535 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
537 YUVA_IN(y, u, v, a, p + BPP, pal);
541 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
545 YUVA_IN(y, u, v, a, p, pal);
549 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
551 YUVA_IN(y, u, v, a, p + BPP, pal);
555 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
557 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
558 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
562 p += -wrap3 + 2 * BPP;
566 YUVA_IN(y, u, v, a, p, pal);
570 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
573 YUVA_IN(y, u, v, a, p, pal);
577 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
578 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
579 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
585 p += wrap3 + (wrap3 - dstw * BPP);
586 lum += wrap + (wrap - dstw - dstx);
587 cb += dst->linesize[1] - width2 - skip2;
588 cr += dst->linesize[2] - width2 - skip2;
590 /* handle odd height */
597 YUVA_IN(y, u, v, a, p, pal);
598 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
599 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
600 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
606 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
607 YUVA_IN(y, u, v, a, p, pal);
611 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
613 YUVA_IN(y, u, v, a, p + BPP, pal);
617 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
618 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
619 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
626 YUVA_IN(y, u, v, a, p, pal);
627 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
628 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
629 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
634 static void free_subpicture(SubPicture *sp)
638 for (i = 0; i < sp->sub.num_rects; i++)
640 av_freep(&sp->sub.rects[i]->pict.data[0]);
641 av_freep(&sp->sub.rects[i]->pict.data[1]);
642 av_freep(&sp->sub.rects[i]);
645 av_free(sp->sub.rects);
647 memset(&sp->sub, 0, sizeof(AVSubtitle));
650 static void video_image_display(VideoState *is)
656 int width, height, x, y;
660 vp = &is->pictq[is->pictq_rindex];
662 /* XXX: use variable in the frame */
663 if (is->video_st->sample_aspect_ratio.num)
664 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
665 else if (is->video_st->codec->sample_aspect_ratio.num)
666 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
669 if (aspect_ratio <= 0.0)
671 aspect_ratio *= (float)is->video_st->codec->width / is->video_st->codec->height;
672 /* if an active format is indicated, then it overrides the
675 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
676 is->dtg_active_format = is->video_st->codec->dtg_active_format;
677 printf("dtg_active_format=%d\n", is->dtg_active_format);
681 switch(is->video_st->codec->dtg_active_format) {
682 case FF_DTG_AFD_SAME:
687 aspect_ratio = 4.0 / 3.0;
689 case FF_DTG_AFD_16_9:
690 aspect_ratio = 16.0 / 9.0;
692 case FF_DTG_AFD_14_9:
693 aspect_ratio = 14.0 / 9.0;
695 case FF_DTG_AFD_4_3_SP_14_9:
696 aspect_ratio = 14.0 / 9.0;
698 case FF_DTG_AFD_16_9_SP_14_9:
699 aspect_ratio = 14.0 / 9.0;
701 case FF_DTG_AFD_SP_4_3:
702 aspect_ratio = 4.0 / 3.0;
709 if (is->subpq_size > 0)
711 sp = &is->subpq[is->subpq_rindex];
713 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
715 SDL_LockYUVOverlay (vp->bmp);
717 pict.data[0] = vp->bmp->pixels[0];
718 pict.data[1] = vp->bmp->pixels[2];
719 pict.data[2] = vp->bmp->pixels[1];
721 pict.linesize[0] = vp->bmp->pitches[0];
722 pict.linesize[1] = vp->bmp->pitches[2];
723 pict.linesize[2] = vp->bmp->pitches[1];
725 for (i = 0; i < sp->sub.num_rects; i++)
726 blend_subrect(&pict, sp->sub.rects[i],
727 vp->bmp->w, vp->bmp->h);
729 SDL_UnlockYUVOverlay (vp->bmp);
735 /* XXX: we suppose the screen has a 1.0 pixel ratio */
737 width = ((int)rint(height * aspect_ratio)) & ~1;
738 if (width > is->width) {
740 height = ((int)rint(width / aspect_ratio)) & ~1;
742 x = (is->width - width) / 2;
743 y = (is->height - height) / 2;
744 if (!is->no_background) {
745 /* fill the background */
746 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
748 is->no_background = 0;
750 rect.x = is->xleft + x;
751 rect.y = is->ytop + y;
754 SDL_DisplayYUVOverlay(vp->bmp, &rect);
757 fill_rectangle(screen,
758 is->xleft, is->ytop, is->width, is->height,
759 QERGB(0x00, 0x00, 0x00));
764 static inline int compute_mod(int a, int b)
773 static void video_audio_display(VideoState *s)
775 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
776 int ch, channels, h, h2, bgcolor, fgcolor;
779 /* compute display index : center on currently output samples */
780 channels = s->audio_st->codec->channels;
781 nb_display_channels = channels;
784 delay = audio_write_get_buf_size(s);
787 /* to be more precise, we take into account the time spent since
788 the last buffer computation */
789 if (audio_callback_time) {
790 time_diff = av_gettime() - audio_callback_time;
791 delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
794 delay -= s->width / 2;
795 if (delay < s->width)
798 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
801 for(i=0; i<1000; i+=channels){
802 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
803 int a= s->sample_array[idx];
804 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
805 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
806 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
808 if(h<score && (b^c)<0){
814 s->last_i_start = i_start;
816 i_start = s->last_i_start;
819 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
820 fill_rectangle(screen,
821 s->xleft, s->ytop, s->width, s->height,
824 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
826 /* total height for one channel */
827 h = s->height / nb_display_channels;
828 /* graph height / 2 */
830 for(ch = 0;ch < nb_display_channels; ch++) {
832 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
833 for(x = 0; x < s->width; x++) {
834 y = (s->sample_array[i] * h2) >> 15;
841 fill_rectangle(screen,
842 s->xleft + x, ys, 1, y,
845 if (i >= SAMPLE_ARRAY_SIZE)
846 i -= SAMPLE_ARRAY_SIZE;
850 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
852 for(ch = 1;ch < nb_display_channels; ch++) {
853 y = s->ytop + ch * h;
854 fill_rectangle(screen,
855 s->xleft, y, s->width, 1,
858 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
861 static int video_open(VideoState *is){
862 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
865 if(is_full_screen) flags |= SDL_FULLSCREEN;
866 else flags |= SDL_RESIZABLE;
868 if (is_full_screen && fs_screen_width) {
870 h = fs_screen_height;
871 } else if(!is_full_screen && screen_width){
874 }else if (is->video_st && is->video_st->codec->width){
875 w = is->video_st->codec->width;
876 h = is->video_st->codec->height;
882 screen = SDL_SetVideoMode(w, h, 0, flags);
884 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
885 screen = SDL_SetVideoMode(w, h, 24, flags);
888 fprintf(stderr, "SDL: could not set video mode - exiting\n");
891 SDL_WM_SetCaption("FFplay", "FFplay");
893 is->width = screen->w;
894 is->height = screen->h;
899 /* display the current picture, if any */
900 static void video_display(VideoState *is)
903 video_open(cur_stream);
904 if (is->audio_st && is->show_audio)
905 video_audio_display(is);
906 else if (is->video_st)
907 video_image_display(is);
910 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
913 event.type = FF_REFRESH_EVENT;
914 event.user.data1 = opaque;
915 SDL_PushEvent(&event);
916 return 0; /* 0 means stop timer */
919 /* schedule a video refresh in 'delay' ms */
920 static SDL_TimerID schedule_refresh(VideoState *is, int delay)
922 if(!delay) delay=1; //SDL seems to be buggy when the delay is 0
923 return SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
926 /* get the current audio clock value */
927 static double get_audio_clock(VideoState *is)
930 int hw_buf_size, bytes_per_sec;
931 pts = is->audio_clock;
932 hw_buf_size = audio_write_get_buf_size(is);
935 bytes_per_sec = is->audio_st->codec->sample_rate *
936 2 * is->audio_st->codec->channels;
939 pts -= (double)hw_buf_size / bytes_per_sec;
943 /* get the current video clock value */
944 static double get_video_clock(VideoState *is)
947 return is->video_current_pts;
949 return is->video_current_pts_drift + av_gettime() / 1000000.0;
953 /* get the current external clock value */
954 static double get_external_clock(VideoState *is)
958 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
961 /* get the current master clock value */
962 static double get_master_clock(VideoState *is)
966 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
968 val = get_video_clock(is);
970 val = get_audio_clock(is);
971 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
973 val = get_audio_clock(is);
975 val = get_video_clock(is);
977 val = get_external_clock(is);
982 /* seek in the stream */
983 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
989 is->seek_flags |= AVSEEK_FLAG_BYTE;
994 /* pause or resume the video */
995 static void stream_pause(VideoState *is)
998 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
999 if(is->read_pause_return != AVERROR(ENOSYS)){
1000 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1002 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1004 is->paused = !is->paused;
1007 static double compute_frame_delay(double frame_current_pts, VideoState *is)
1009 double actual_delay, delay, sync_threshold, ref_clock, diff;
1011 /* compute nominal delay */
1012 delay = frame_current_pts - is->frame_last_pts;
1013 if (delay <= 0 || delay >= 10.0) {
1014 /* if incorrect delay, use previous one */
1015 delay = is->frame_last_delay;
1017 is->frame_last_delay = delay;
1019 is->frame_last_pts = frame_current_pts;
1021 /* update delay to follow master synchronisation source */
1022 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1023 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1024 /* if video is slave, we try to correct big delays by
1025 duplicating or deleting a frame */
1026 ref_clock = get_master_clock(is);
1027 diff = frame_current_pts - ref_clock;
1029 /* skip or repeat frame. We take into account the
1030 delay to compute the threshold. I still don't know
1031 if it is the best guess */
1032 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1033 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1034 if (diff <= -sync_threshold)
1036 else if (diff >= sync_threshold)
1041 is->frame_timer += delay;
1042 /* compute the REAL delay (we need to do that to avoid
1044 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
1045 if (actual_delay < 0.010) {
1046 /* XXX: should skip picture */
1047 actual_delay = 0.010;
1050 #if defined(DEBUG_SYNC)
1051 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1052 delay, actual_delay, frame_current_pts, -diff);
1055 return actual_delay;
1058 /* called to display each frame */
1059 static void video_refresh_timer(void *opaque)
1061 VideoState *is = opaque;
1064 SubPicture *sp, *sp2;
1067 if (is->pictq_size == 0) {
1068 // fprintf(stderr, "Internal error detected in the SDL timer\n");
1070 /* dequeue the picture */
1071 vp = &is->pictq[is->pictq_rindex];
1073 /* update current video pts */
1074 is->video_current_pts = vp->pts;
1075 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1077 if(is->subtitle_st) {
1078 if (is->subtitle_stream_changed) {
1079 SDL_LockMutex(is->subpq_mutex);
1081 while (is->subpq_size) {
1082 free_subpicture(&is->subpq[is->subpq_rindex]);
1084 /* update queue size and signal for next picture */
1085 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1086 is->subpq_rindex = 0;
1090 is->subtitle_stream_changed = 0;
1092 SDL_CondSignal(is->subpq_cond);
1093 SDL_UnlockMutex(is->subpq_mutex);
1095 if (is->subpq_size > 0) {
1096 sp = &is->subpq[is->subpq_rindex];
1098 if (is->subpq_size > 1)
1099 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1103 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1104 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1106 free_subpicture(sp);
1108 /* update queue size and signal for next picture */
1109 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1110 is->subpq_rindex = 0;
1112 SDL_LockMutex(is->subpq_mutex);
1114 SDL_CondSignal(is->subpq_cond);
1115 SDL_UnlockMutex(is->subpq_mutex);
1121 /* display picture */
1124 /* update queue size and signal for next picture */
1125 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1126 is->pictq_rindex = 0;
1128 SDL_LockMutex(is->pictq_mutex);
1131 SDL_CondSignal(is->pictq_cond);
1132 SDL_UnlockMutex(is->pictq_mutex);
1134 } else if (is->audio_st) {
1135 /* draw the next audio frame */
1137 schedule_refresh(is, 40);
1139 /* if only audio stream, then display the audio bars (better
1140 than nothing, just to test the implementation */
1142 /* display picture */
1145 schedule_refresh(is, 100);
1148 static int64_t last_time;
1150 int aqsize, vqsize, sqsize;
1153 cur_time = av_gettime();
1154 if (!last_time || (cur_time - last_time) >= 30000) {
1159 aqsize = is->audioq.size;
1161 vqsize = is->videoq.size;
1162 if (is->subtitle_st)
1163 sqsize = is->subtitleq.size;
1165 if (is->audio_st && is->video_st)
1166 av_diff = get_audio_clock(is) - get_video_clock(is);
1167 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB f=%Ld/%Ld \r",
1168 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1170 last_time = cur_time;
1175 /* allocate a picture (needs to do that in main thread to avoid
1176 potential locking problems */
1177 static void alloc_picture(void *opaque)
1179 VideoState *is = opaque;
1182 vp = &is->pictq[is->pictq_windex];
1185 SDL_FreeYUVOverlay(vp->bmp);
1187 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1188 is->video_st->codec->height,
1191 vp->width = is->video_st->codec->width;
1192 vp->height = is->video_st->codec->height;
1194 SDL_LockMutex(is->pictq_mutex);
1196 SDL_CondSignal(is->pictq_cond);
1197 SDL_UnlockMutex(is->pictq_mutex);
1202 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1204 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
1209 /* wait until we have space to put a new picture */
1210 SDL_LockMutex(is->pictq_mutex);
1211 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1212 !is->videoq.abort_request) {
1213 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1215 SDL_UnlockMutex(is->pictq_mutex);
1217 if (is->videoq.abort_request)
1220 vp = &is->pictq[is->pictq_windex];
1222 /* alloc or resize hardware picture buffer */
1224 vp->width != is->video_st->codec->width ||
1225 vp->height != is->video_st->codec->height) {
1230 /* the allocation must be done in the main thread to avoid
1232 event.type = FF_ALLOC_EVENT;
1233 event.user.data1 = is;
1234 SDL_PushEvent(&event);
1236 /* wait until the picture is allocated */
1237 SDL_LockMutex(is->pictq_mutex);
1238 while (!vp->allocated && !is->videoq.abort_request) {
1239 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1241 SDL_UnlockMutex(is->pictq_mutex);
1243 if (is->videoq.abort_request)
1247 /* if the frame is not skipped, then display it */
1251 /* get a pointer on the bitmap */
1252 SDL_LockYUVOverlay (vp->bmp);
1254 dst_pix_fmt = PIX_FMT_YUV420P;
1255 memset(&pict,0,sizeof(AVPicture));
1256 pict.data[0] = vp->bmp->pixels[0];
1257 pict.data[1] = vp->bmp->pixels[2];
1258 pict.data[2] = vp->bmp->pixels[1];
1260 pict.linesize[0] = vp->bmp->pitches[0];
1261 pict.linesize[1] = vp->bmp->pitches[2];
1262 pict.linesize[2] = vp->bmp->pitches[1];
1263 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1264 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1265 is->video_st->codec->width, is->video_st->codec->height,
1266 is->video_st->codec->pix_fmt,
1267 is->video_st->codec->width, is->video_st->codec->height,
1268 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1269 if (is->img_convert_ctx == NULL) {
1270 fprintf(stderr, "Cannot initialize the conversion context\n");
1273 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1274 0, is->video_st->codec->height, pict.data, pict.linesize);
1275 /* update the bitmap content */
1276 SDL_UnlockYUVOverlay(vp->bmp);
1280 /* now we can update the picture count */
1281 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1282 is->pictq_windex = 0;
1283 SDL_LockMutex(is->pictq_mutex);
1285 //We must schedule in a mutex as we must store the timer id before the timer dies or might end up freeing a alraedy freed id
1286 vp->timer_id= schedule_refresh(is, (int)(compute_frame_delay(vp->pts, is) * 1000 + 0.5));
1287 SDL_UnlockMutex(is->pictq_mutex);
1293 * compute the exact PTS for the picture if it is omitted in the stream
1294 * @param pts1 the dts of the pkt / pts of the frame
1296 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
1298 double frame_delay, pts;
1303 /* update video clock with pts, if present */
1304 is->video_clock = pts;
1306 pts = is->video_clock;
1308 /* update video clock for next frame */
1309 frame_delay = av_q2d(is->video_st->codec->time_base);
1310 /* for MPEG2, the frame can be repeated, so we update the
1311 clock accordingly */
1312 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1313 is->video_clock += frame_delay;
1315 #if defined(DEBUG_SYNC) && 0
1318 if (src_frame->pict_type == FF_B_TYPE)
1320 else if (src_frame->pict_type == FF_I_TYPE)
1324 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1328 return queue_picture(is, src_frame, pts);
1331 static int video_thread(void *arg)
1333 VideoState *is = arg;
1334 AVPacket pkt1, *pkt = &pkt1;
1335 int len1, got_picture, i;
1336 AVFrame *frame= avcodec_alloc_frame();
1340 while (is->paused && !is->videoq.abort_request) {
1343 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1346 if(pkt->data == flush_pkt.data){
1347 avcodec_flush_buffers(is->video_st->codec);
1349 SDL_LockMutex(is->pictq_mutex);
1350 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1351 for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1352 if(is->pictq[i].timer_id){
1353 SDL_RemoveTimer(is->pictq[i].timer_id);
1354 is->pictq[i].timer_id=0;
1355 schedule_refresh(is, 1);
1358 while (is->pictq_size && !is->videoq.abort_request) {
1359 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1361 SDL_UnlockMutex(is->pictq_mutex);
1363 is->last_dts_for_fault_detection=
1364 is->last_pts_for_fault_detection= INT64_MIN;
1365 is->frame_last_pts= AV_NOPTS_VALUE;
1370 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1371 this packet, if any */
1372 is->video_st->codec->reordered_opaque= pkt->pts;
1373 len1 = avcodec_decode_video2(is->video_st->codec,
1374 frame, &got_picture,
1377 if(pkt->dts != AV_NOPTS_VALUE){
1378 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1379 is->last_dts_for_fault_detection= pkt->dts;
1381 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1382 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1383 is->last_pts_for_fault_detection= frame->reordered_opaque;
1386 if( ( decoder_reorder_pts==1
1387 || decoder_reorder_pts && is->faulty_pts<is->faulty_dts
1388 || pkt->dts == AV_NOPTS_VALUE)
1389 && frame->reordered_opaque != AV_NOPTS_VALUE)
1390 pts= frame->reordered_opaque;
1391 else if(pkt->dts != AV_NOPTS_VALUE)
1395 pts *= av_q2d(is->video_st->time_base);
1400 if (output_picture2(is, frame, pts) < 0)
1403 av_free_packet(pkt);
1406 stream_pause(cur_stream);
1413 static int subtitle_thread(void *arg)
1415 VideoState *is = arg;
1417 AVPacket pkt1, *pkt = &pkt1;
1418 int len1, got_subtitle;
1421 int r, g, b, y, u, v, a;
1424 while (is->paused && !is->subtitleq.abort_request) {
1427 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1430 if(pkt->data == flush_pkt.data){
1431 avcodec_flush_buffers(is->subtitle_st->codec);
1434 SDL_LockMutex(is->subpq_mutex);
1435 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1436 !is->subtitleq.abort_request) {
1437 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1439 SDL_UnlockMutex(is->subpq_mutex);
1441 if (is->subtitleq.abort_request)
1444 sp = &is->subpq[is->subpq_windex];
1446 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1447 this packet, if any */
1449 if (pkt->pts != AV_NOPTS_VALUE)
1450 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1452 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1453 &sp->sub, &got_subtitle,
1457 if (got_subtitle && sp->sub.format == 0) {
1460 for (i = 0; i < sp->sub.num_rects; i++)
1462 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1464 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1465 y = RGB_TO_Y_CCIR(r, g, b);
1466 u = RGB_TO_U_CCIR(r, g, b, 0);
1467 v = RGB_TO_V_CCIR(r, g, b, 0);
1468 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1472 /* now we can update the picture count */
1473 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1474 is->subpq_windex = 0;
1475 SDL_LockMutex(is->subpq_mutex);
1477 SDL_UnlockMutex(is->subpq_mutex);
1479 av_free_packet(pkt);
1482 // stream_pause(cur_stream);
1488 /* copy samples for viewing in editor window */
1489 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1491 int size, len, channels;
1493 channels = is->audio_st->codec->channels;
1495 size = samples_size / sizeof(short);
1497 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1500 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1502 is->sample_array_index += len;
1503 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1504 is->sample_array_index = 0;
1509 /* return the new audio buffer size (samples can be added or deleted
1510 to get better sync if video or external master clock) */
1511 static int synchronize_audio(VideoState *is, short *samples,
1512 int samples_size1, double pts)
1514 int n, samples_size;
1517 n = 2 * is->audio_st->codec->channels;
1518 samples_size = samples_size1;
1520 /* if not master, then we try to remove or add samples to correct the clock */
1521 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1522 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1523 double diff, avg_diff;
1524 int wanted_size, min_size, max_size, nb_samples;
1526 ref_clock = get_master_clock(is);
1527 diff = get_audio_clock(is) - ref_clock;
1529 if (diff < AV_NOSYNC_THRESHOLD) {
1530 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1531 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1532 /* not enough measures to have a correct estimate */
1533 is->audio_diff_avg_count++;
1535 /* estimate the A-V difference */
1536 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1538 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1539 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1540 nb_samples = samples_size / n;
1542 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1543 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1544 if (wanted_size < min_size)
1545 wanted_size = min_size;
1546 else if (wanted_size > max_size)
1547 wanted_size = max_size;
1549 /* add or remove samples to correction the synchro */
1550 if (wanted_size < samples_size) {
1551 /* remove samples */
1552 samples_size = wanted_size;
1553 } else if (wanted_size > samples_size) {
1554 uint8_t *samples_end, *q;
1558 nb = (samples_size - wanted_size);
1559 samples_end = (uint8_t *)samples + samples_size - n;
1560 q = samples_end + n;
1562 memcpy(q, samples_end, n);
1566 samples_size = wanted_size;
1570 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1571 diff, avg_diff, samples_size - samples_size1,
1572 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1576 /* too big difference : may be initial PTS errors, so
1578 is->audio_diff_avg_count = 0;
1579 is->audio_diff_cum = 0;
1583 return samples_size;
1586 /* decode one audio frame and returns its uncompressed size */
1587 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1589 AVPacket *pkt_temp = &is->audio_pkt_temp;
1590 AVPacket *pkt = &is->audio_pkt;
1591 AVCodecContext *dec= is->audio_st->codec;
1592 int n, len1, data_size;
1596 /* NOTE: the audio packet can contain several frames */
1597 while (pkt_temp->size > 0) {
1598 data_size = sizeof(is->audio_buf1);
1599 len1 = avcodec_decode_audio3(dec,
1600 (int16_t *)is->audio_buf1, &data_size,
1603 /* if error, we skip the frame */
1608 pkt_temp->data += len1;
1609 pkt_temp->size -= len1;
1613 if (dec->sample_fmt != is->audio_src_fmt) {
1614 if (is->reformat_ctx)
1615 av_audio_convert_free(is->reformat_ctx);
1616 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
1617 dec->sample_fmt, 1, NULL, 0);
1618 if (!is->reformat_ctx) {
1619 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
1620 avcodec_get_sample_fmt_name(dec->sample_fmt),
1621 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
1624 is->audio_src_fmt= dec->sample_fmt;
1627 if (is->reformat_ctx) {
1628 const void *ibuf[6]= {is->audio_buf1};
1629 void *obuf[6]= {is->audio_buf2};
1630 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
1631 int ostride[6]= {2};
1632 int len= data_size/istride[0];
1633 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
1634 printf("av_audio_convert() failed\n");
1637 is->audio_buf= is->audio_buf2;
1638 /* FIXME: existing code assume that data_size equals framesize*channels*2
1639 remove this legacy cruft */
1642 is->audio_buf= is->audio_buf1;
1645 /* if no pts, then compute it */
1646 pts = is->audio_clock;
1648 n = 2 * dec->channels;
1649 is->audio_clock += (double)data_size /
1650 (double)(n * dec->sample_rate);
1651 #if defined(DEBUG_SYNC)
1653 static double last_clock;
1654 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1655 is->audio_clock - last_clock,
1656 is->audio_clock, pts);
1657 last_clock = is->audio_clock;
1663 /* free the current packet */
1665 av_free_packet(pkt);
1667 if (is->paused || is->audioq.abort_request) {
1671 /* read next packet */
1672 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1674 if(pkt->data == flush_pkt.data){
1675 avcodec_flush_buffers(dec);
1679 pkt_temp->data = pkt->data;
1680 pkt_temp->size = pkt->size;
1682 /* if update the audio clock with the pts */
1683 if (pkt->pts != AV_NOPTS_VALUE) {
1684 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1689 /* get the current audio output buffer size, in samples. With SDL, we
1690 cannot have a precise information */
1691 static int audio_write_get_buf_size(VideoState *is)
1693 return is->audio_buf_size - is->audio_buf_index;
1697 /* prepare a new audio buffer */
1698 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1700 VideoState *is = opaque;
1701 int audio_size, len1;
1704 audio_callback_time = av_gettime();
1707 if (is->audio_buf_index >= is->audio_buf_size) {
1708 audio_size = audio_decode_frame(is, &pts);
1709 if (audio_size < 0) {
1710 /* if error, just output silence */
1711 is->audio_buf = is->audio_buf1;
1712 is->audio_buf_size = 1024;
1713 memset(is->audio_buf, 0, is->audio_buf_size);
1716 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1717 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1719 is->audio_buf_size = audio_size;
1721 is->audio_buf_index = 0;
1723 len1 = is->audio_buf_size - is->audio_buf_index;
1726 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1729 is->audio_buf_index += len1;
1733 /* open a given stream. Return 0 if OK */
1734 static int stream_component_open(VideoState *is, int stream_index)
1736 AVFormatContext *ic = is->ic;
1737 AVCodecContext *enc;
1739 SDL_AudioSpec wanted_spec, spec;
1741 if (stream_index < 0 || stream_index >= ic->nb_streams)
1743 enc = ic->streams[stream_index]->codec;
1745 /* prepare audio output */
1746 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1747 if (enc->channels > 0) {
1748 enc->request_channels = FFMIN(2, enc->channels);
1750 enc->request_channels = 2;
1754 codec = avcodec_find_decoder(enc->codec_id);
1755 enc->debug_mv = debug_mv;
1757 enc->workaround_bugs = workaround_bugs;
1758 enc->lowres = lowres;
1759 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1760 enc->idct_algo= idct;
1761 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1762 enc->skip_frame= skip_frame;
1763 enc->skip_idct= skip_idct;
1764 enc->skip_loop_filter= skip_loop_filter;
1765 enc->error_recognition= error_recognition;
1766 enc->error_concealment= error_concealment;
1767 avcodec_thread_init(enc, thread_count);
1769 set_context_opts(enc, avcodec_opts[enc->codec_type], 0);
1772 avcodec_open(enc, codec) < 0)
1775 /* prepare audio output */
1776 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1777 wanted_spec.freq = enc->sample_rate;
1778 wanted_spec.format = AUDIO_S16SYS;
1779 wanted_spec.channels = enc->channels;
1780 wanted_spec.silence = 0;
1781 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1782 wanted_spec.callback = sdl_audio_callback;
1783 wanted_spec.userdata = is;
1784 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1785 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1788 is->audio_hw_buf_size = spec.size;
1789 is->audio_src_fmt= SAMPLE_FMT_S16;
1792 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
1793 switch(enc->codec_type) {
1794 case CODEC_TYPE_AUDIO:
1795 is->audio_stream = stream_index;
1796 is->audio_st = ic->streams[stream_index];
1797 is->audio_buf_size = 0;
1798 is->audio_buf_index = 0;
1800 /* init averaging filter */
1801 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1802 is->audio_diff_avg_count = 0;
1803 /* since we do not have a precise anough audio fifo fullness,
1804 we correct audio sync only if larger than this threshold */
1805 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1807 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1808 packet_queue_init(&is->audioq);
1811 case CODEC_TYPE_VIDEO:
1812 is->video_stream = stream_index;
1813 is->video_st = ic->streams[stream_index];
1815 is->frame_last_delay = 40e-3;
1816 is->frame_timer = (double)av_gettime() / 1000000.0;
1817 // is->video_current_pts_time = av_gettime();
1819 packet_queue_init(&is->videoq);
1820 is->video_tid = SDL_CreateThread(video_thread, is);
1822 case CODEC_TYPE_SUBTITLE:
1823 is->subtitle_stream = stream_index;
1824 is->subtitle_st = ic->streams[stream_index];
1825 packet_queue_init(&is->subtitleq);
1827 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1835 static void stream_component_close(VideoState *is, int stream_index)
1837 AVFormatContext *ic = is->ic;
1838 AVCodecContext *enc;
1840 if (stream_index < 0 || stream_index >= ic->nb_streams)
1842 enc = ic->streams[stream_index]->codec;
1844 switch(enc->codec_type) {
1845 case CODEC_TYPE_AUDIO:
1846 packet_queue_abort(&is->audioq);
1850 packet_queue_end(&is->audioq);
1851 if (is->reformat_ctx)
1852 av_audio_convert_free(is->reformat_ctx);
1854 case CODEC_TYPE_VIDEO:
1855 packet_queue_abort(&is->videoq);
1857 /* note: we also signal this mutex to make sure we deblock the
1858 video thread in all cases */
1859 SDL_LockMutex(is->pictq_mutex);
1860 SDL_CondSignal(is->pictq_cond);
1861 SDL_UnlockMutex(is->pictq_mutex);
1863 SDL_WaitThread(is->video_tid, NULL);
1865 packet_queue_end(&is->videoq);
1867 case CODEC_TYPE_SUBTITLE:
1868 packet_queue_abort(&is->subtitleq);
1870 /* note: we also signal this mutex to make sure we deblock the
1871 video thread in all cases */
1872 SDL_LockMutex(is->subpq_mutex);
1873 is->subtitle_stream_changed = 1;
1875 SDL_CondSignal(is->subpq_cond);
1876 SDL_UnlockMutex(is->subpq_mutex);
1878 SDL_WaitThread(is->subtitle_tid, NULL);
1880 packet_queue_end(&is->subtitleq);
1886 ic->streams[stream_index]->discard = AVDISCARD_ALL;
1888 switch(enc->codec_type) {
1889 case CODEC_TYPE_AUDIO:
1890 is->audio_st = NULL;
1891 is->audio_stream = -1;
1893 case CODEC_TYPE_VIDEO:
1894 is->video_st = NULL;
1895 is->video_stream = -1;
1897 case CODEC_TYPE_SUBTITLE:
1898 is->subtitle_st = NULL;
1899 is->subtitle_stream = -1;
1906 /* since we have only one decoding thread, we can use a global
1907 variable instead of a thread local variable */
1908 static VideoState *global_video_state;
1910 static int decode_interrupt_cb(void)
1912 return (global_video_state && global_video_state->abort_request);
1915 /* this thread gets the stream from the disk or the network */
1916 static int decode_thread(void *arg)
1918 VideoState *is = arg;
1919 AVFormatContext *ic;
1920 int err, i, ret, video_index, audio_index, subtitle_index;
1921 AVPacket pkt1, *pkt = &pkt1;
1922 AVFormatParameters params, *ap = ¶ms;
1925 ic = avformat_alloc_context();
1929 subtitle_index = -1;
1930 is->video_stream = -1;
1931 is->audio_stream = -1;
1932 is->subtitle_stream = -1;
1934 global_video_state = is;
1935 url_set_interrupt_cb(decode_interrupt_cb);
1937 memset(ap, 0, sizeof(*ap));
1939 ap->prealloced_context = 1;
1940 ap->width = frame_width;
1941 ap->height= frame_height;
1942 ap->time_base= (AVRational){1, 25};
1943 ap->pix_fmt = frame_pix_fmt;
1945 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
1947 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1949 print_error(is->filename, err);
1956 ic->flags |= AVFMT_FLAG_GENPTS;
1958 err = av_find_stream_info(ic);
1960 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1965 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
1967 /* if seeking requested, we execute it */
1968 if (start_time != AV_NOPTS_VALUE) {
1971 timestamp = start_time;
1972 /* add the stream start time */
1973 if (ic->start_time != AV_NOPTS_VALUE)
1974 timestamp += ic->start_time;
1975 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
1977 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1978 is->filename, (double)timestamp / AV_TIME_BASE);
1982 for(i = 0; i < ic->nb_streams; i++) {
1983 AVCodecContext *enc = ic->streams[i]->codec;
1984 ic->streams[i]->discard = AVDISCARD_ALL;
1985 switch(enc->codec_type) {
1986 case CODEC_TYPE_AUDIO:
1987 if (wanted_audio_stream-- >= 0 && !audio_disable)
1990 case CODEC_TYPE_VIDEO:
1991 if (wanted_video_stream-- >= 0 && !video_disable)
1994 case CODEC_TYPE_SUBTITLE:
1995 if (wanted_subtitle_stream-- >= 0 && !video_disable)
2003 dump_format(ic, 0, is->filename, 0);
2006 /* open the streams */
2007 if (audio_index >= 0) {
2008 stream_component_open(is, audio_index);
2011 if (video_index >= 0) {
2012 stream_component_open(is, video_index);
2014 if (!display_disable)
2018 if (subtitle_index >= 0) {
2019 stream_component_open(is, subtitle_index);
2022 if (is->video_stream < 0 && is->audio_stream < 0) {
2023 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2029 if (is->abort_request)
2031 if (is->paused != is->last_paused) {
2032 is->last_paused = is->paused;
2034 is->read_pause_return= av_read_pause(ic);
2038 #if CONFIG_RTSP_DEMUXER
2039 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2040 /* wait 10 ms to avoid trying to get another packet */
2047 int64_t seek_target= is->seek_pos;
2048 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2049 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2050 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2051 // of the seek_pos/seek_rel variables
2053 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2055 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2057 if (is->audio_stream >= 0) {
2058 packet_queue_flush(&is->audioq);
2059 packet_queue_put(&is->audioq, &flush_pkt);
2061 if (is->subtitle_stream >= 0) {
2062 packet_queue_flush(&is->subtitleq);
2063 packet_queue_put(&is->subtitleq, &flush_pkt);
2065 if (is->video_stream >= 0) {
2066 packet_queue_flush(&is->videoq);
2067 packet_queue_put(&is->videoq, &flush_pkt);
2074 /* if the queue are full, no need to read more */
2075 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2076 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2077 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2078 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2083 if(url_feof(ic->pb) || eof) {
2084 if(is->video_stream >= 0){
2085 av_init_packet(pkt);
2088 pkt->stream_index= is->video_stream;
2089 packet_queue_put(&is->videoq, pkt);
2094 ret = av_read_frame(ic, pkt);
2096 if (ret == AVERROR_EOF)
2098 if (url_ferror(ic->pb))
2100 SDL_Delay(100); /* wait for user event */
2103 if (pkt->stream_index == is->audio_stream) {
2104 packet_queue_put(&is->audioq, pkt);
2105 } else if (pkt->stream_index == is->video_stream) {
2106 packet_queue_put(&is->videoq, pkt);
2107 } else if (pkt->stream_index == is->subtitle_stream) {
2108 packet_queue_put(&is->subtitleq, pkt);
2110 av_free_packet(pkt);
2113 /* wait until the end */
2114 while (!is->abort_request) {
2120 /* disable interrupting */
2121 global_video_state = NULL;
2123 /* close each stream */
2124 if (is->audio_stream >= 0)
2125 stream_component_close(is, is->audio_stream);
2126 if (is->video_stream >= 0)
2127 stream_component_close(is, is->video_stream);
2128 if (is->subtitle_stream >= 0)
2129 stream_component_close(is, is->subtitle_stream);
2131 av_close_input_file(is->ic);
2132 is->ic = NULL; /* safety */
2134 url_set_interrupt_cb(NULL);
2139 event.type = FF_QUIT_EVENT;
2140 event.user.data1 = is;
2141 SDL_PushEvent(&event);
2146 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2150 is = av_mallocz(sizeof(VideoState));
2153 av_strlcpy(is->filename, filename, sizeof(is->filename));
2154 is->iformat = iformat;
2158 /* start video display */
2159 is->pictq_mutex = SDL_CreateMutex();
2160 is->pictq_cond = SDL_CreateCond();
2162 is->subpq_mutex = SDL_CreateMutex();
2163 is->subpq_cond = SDL_CreateCond();
2165 /* add the refresh timer to draw the picture */
2166 schedule_refresh(is, 40);
2168 is->av_sync_type = av_sync_type;
2169 is->parse_tid = SDL_CreateThread(decode_thread, is);
2170 if (!is->parse_tid) {
2177 static void stream_close(VideoState *is)
2181 /* XXX: use a special url_shutdown call to abort parse cleanly */
2182 is->abort_request = 1;
2183 SDL_WaitThread(is->parse_tid, NULL);
2185 /* free all pictures */
2186 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2189 SDL_FreeYUVOverlay(vp->bmp);
2193 SDL_DestroyMutex(is->pictq_mutex);
2194 SDL_DestroyCond(is->pictq_cond);
2195 SDL_DestroyMutex(is->subpq_mutex);
2196 SDL_DestroyCond(is->subpq_cond);
2197 if (is->img_convert_ctx)
2198 sws_freeContext(is->img_convert_ctx);
2202 static void stream_cycle_channel(VideoState *is, int codec_type)
2204 AVFormatContext *ic = is->ic;
2205 int start_index, stream_index;
2208 if (codec_type == CODEC_TYPE_VIDEO)
2209 start_index = is->video_stream;
2210 else if (codec_type == CODEC_TYPE_AUDIO)
2211 start_index = is->audio_stream;
2213 start_index = is->subtitle_stream;
2214 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2216 stream_index = start_index;
2218 if (++stream_index >= is->ic->nb_streams)
2220 if (codec_type == CODEC_TYPE_SUBTITLE)
2227 if (stream_index == start_index)
2229 st = ic->streams[stream_index];
2230 if (st->codec->codec_type == codec_type) {
2231 /* check that parameters are OK */
2232 switch(codec_type) {
2233 case CODEC_TYPE_AUDIO:
2234 if (st->codec->sample_rate != 0 &&
2235 st->codec->channels != 0)
2238 case CODEC_TYPE_VIDEO:
2239 case CODEC_TYPE_SUBTITLE:
2247 stream_component_close(is, start_index);
2248 stream_component_open(is, stream_index);
2252 static void toggle_full_screen(void)
2254 is_full_screen = !is_full_screen;
2255 if (!fs_screen_width) {
2256 /* use default SDL method */
2257 // SDL_WM_ToggleFullScreen(screen);
2259 video_open(cur_stream);
2262 static void toggle_pause(void)
2265 stream_pause(cur_stream);
2269 static void step_to_next_frame(void)
2272 /* if the stream is paused unpause it, then step */
2273 if (cur_stream->paused)
2274 stream_pause(cur_stream);
2279 static void do_exit(void)
2283 stream_close(cur_stream);
2286 for (i = 0; i < CODEC_TYPE_NB; i++)
2287 av_free(avcodec_opts[i]);
2288 av_free(avformat_opts);
2296 static void toggle_audio_display(void)
2299 cur_stream->show_audio = !cur_stream->show_audio;
2303 /* handle an event sent by the GUI */
2304 static void event_loop(void)
2307 double incr, pos, frac;
2310 SDL_WaitEvent(&event);
2311 switch(event.type) {
2313 switch(event.key.keysym.sym) {
2319 toggle_full_screen();
2325 case SDLK_s: //S: Step to next frame
2326 step_to_next_frame();
2330 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2334 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2338 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2341 toggle_audio_display();
2356 if (seek_by_bytes) {
2357 pos = url_ftell(cur_stream->ic->pb);
2358 if (cur_stream->ic->bit_rate)
2359 incr *= cur_stream->ic->bit_rate / 60.0;
2363 stream_seek(cur_stream, pos, incr, 1);
2365 pos = get_master_clock(cur_stream);
2367 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2375 case SDL_MOUSEBUTTONDOWN:
2377 if(seek_by_bytes || cur_stream->ic->duration<=0){
2378 uint64_t size= url_fsize(cur_stream->ic->pb);
2379 stream_seek(cur_stream, size*(double)event.button.x/(double)cur_stream->width, 0, 1);
2383 int tns, thh, tmm, tss;
2384 tns = cur_stream->ic->duration/1000000LL;
2386 tmm = (tns%3600)/60;
2388 frac = (double)event.button.x/(double)cur_stream->width;
2393 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2394 hh, mm, ss, thh, tmm, tss);
2395 ts = frac*cur_stream->ic->duration;
2396 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2397 ts += cur_stream->ic->start_time;
2398 stream_seek(cur_stream, ts, 0, 0);
2402 case SDL_VIDEORESIZE:
2404 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2405 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2406 screen_width = cur_stream->width = event.resize.w;
2407 screen_height= cur_stream->height= event.resize.h;
2414 case FF_ALLOC_EVENT:
2415 video_open(event.user.data1);
2416 alloc_picture(event.user.data1);
2418 case FF_REFRESH_EVENT:
2419 video_refresh_timer(event.user.data1);
2427 static void opt_frame_size(const char *arg)
2429 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2430 fprintf(stderr, "Incorrect frame size\n");
2433 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2434 fprintf(stderr, "Frame size must be a multiple of 2\n");
2439 static int opt_width(const char *opt, const char *arg)
2441 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2445 static int opt_height(const char *opt, const char *arg)
2447 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2451 static void opt_format(const char *arg)
2453 file_iformat = av_find_input_format(arg);
2454 if (!file_iformat) {
2455 fprintf(stderr, "Unknown input format: %s\n", arg);
2460 static void opt_frame_pix_fmt(const char *arg)
2462 frame_pix_fmt = av_get_pix_fmt(arg);
2465 static int opt_sync(const char *opt, const char *arg)
2467 if (!strcmp(arg, "audio"))
2468 av_sync_type = AV_SYNC_AUDIO_MASTER;
2469 else if (!strcmp(arg, "video"))
2470 av_sync_type = AV_SYNC_VIDEO_MASTER;
2471 else if (!strcmp(arg, "ext"))
2472 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2474 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2480 static int opt_seek(const char *opt, const char *arg)
2482 start_time = parse_time_or_die(opt, arg, 1);
2486 static int opt_debug(const char *opt, const char *arg)
2488 av_log_set_level(99);
2489 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2493 static int opt_vismv(const char *opt, const char *arg)
2495 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2499 static int opt_thread_count(const char *opt, const char *arg)
2501 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2503 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2508 static const OptionDef options[] = {
2509 #include "cmdutils_common_opts.h"
2510 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2511 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2512 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2513 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2514 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2515 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2516 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "select desired audio stream", "stream_number" },
2517 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "select desired video stream", "stream_number" },
2518 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_subtitle_stream}, "select desired subtitle stream", "stream_number" },
2519 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2520 { "bytes", OPT_BOOL, {(void*)&seek_by_bytes}, "seek by bytes" },
2521 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2522 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2523 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2524 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2525 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2526 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2527 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2528 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2529 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2530 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2531 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2532 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2533 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2534 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2535 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2536 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2537 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2538 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2539 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2540 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2544 static void show_usage(void)
2546 printf("Simple media player\n");
2547 printf("usage: ffplay [options] input_file\n");
2551 static void show_help(void)
2554 show_help_options(options, "Main options:\n",
2556 show_help_options(options, "\nAdvanced options:\n",
2557 OPT_EXPERT, OPT_EXPERT);
2558 printf("\nWhile playing:\n"
2560 "f toggle full screen\n"
2562 "a cycle audio channel\n"
2563 "v cycle video channel\n"
2564 "t cycle subtitle channel\n"
2565 "w show audio waves\n"
2566 "left/right seek backward/forward 10 seconds\n"
2567 "down/up seek backward/forward 1 minute\n"
2568 "mouse click seek to percentage in file corresponding to fraction of width\n"
2572 static void opt_input_file(const char *filename)
2574 if (!strcmp(filename, "-"))
2576 input_filename = filename;
2579 /* Called from the main */
2580 int main(int argc, char **argv)
2584 /* register all codecs, demux and protocols */
2585 avcodec_register_all();
2586 avdevice_register_all();
2589 for(i=0; i<CODEC_TYPE_NB; i++){
2590 avcodec_opts[i]= avcodec_alloc_context2(i);
2592 avformat_opts = avformat_alloc_context();
2593 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
2597 parse_options(argc, argv, options, opt_input_file);
2599 if (!input_filename) {
2601 fprintf(stderr, "An input file must be specified\n");
2602 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
2606 if (display_disable) {
2609 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2610 #if !defined(__MINGW32__) && !defined(__APPLE__)
2611 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
2613 if (SDL_Init (flags)) {
2614 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2618 if (!display_disable) {
2619 #if HAVE_SDL_VIDEO_SIZE
2620 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2621 fs_screen_width = vi->current_w;
2622 fs_screen_height = vi->current_h;
2626 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2627 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2628 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2629 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2631 av_init_packet(&flush_pkt);
2632 flush_pkt.data= "FLUSH";
2634 cur_stream = stream_open(input_filename, file_iformat);