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)
988 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
990 is->seek_flags |= AVSEEK_FLAG_BYTE;
995 /* pause or resume the video */
996 static void stream_pause(VideoState *is)
999 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1000 if(is->read_pause_return != AVERROR(ENOSYS)){
1001 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1003 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1005 is->paused = !is->paused;
1008 static double compute_frame_delay(double frame_current_pts, VideoState *is)
1010 double actual_delay, delay, sync_threshold, ref_clock, diff;
1012 /* compute nominal delay */
1013 delay = frame_current_pts - is->frame_last_pts;
1014 if (delay <= 0 || delay >= 10.0) {
1015 /* if incorrect delay, use previous one */
1016 delay = is->frame_last_delay;
1018 is->frame_last_delay = delay;
1020 is->frame_last_pts = frame_current_pts;
1022 /* update delay to follow master synchronisation source */
1023 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1024 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1025 /* if video is slave, we try to correct big delays by
1026 duplicating or deleting a frame */
1027 ref_clock = get_master_clock(is);
1028 diff = frame_current_pts - ref_clock;
1030 /* skip or repeat frame. We take into account the
1031 delay to compute the threshold. I still don't know
1032 if it is the best guess */
1033 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1034 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1035 if (diff <= -sync_threshold)
1037 else if (diff >= sync_threshold)
1042 is->frame_timer += delay;
1043 /* compute the REAL delay (we need to do that to avoid
1045 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
1046 if (actual_delay < 0.010) {
1047 /* XXX: should skip picture */
1048 actual_delay = 0.010;
1051 #if defined(DEBUG_SYNC)
1052 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1053 delay, actual_delay, frame_current_pts, -diff);
1056 return actual_delay;
1059 /* called to display each frame */
1060 static void video_refresh_timer(void *opaque)
1062 VideoState *is = opaque;
1065 SubPicture *sp, *sp2;
1068 if (is->pictq_size == 0) {
1069 // fprintf(stderr, "Internal error detected in the SDL timer\n");
1071 /* dequeue the picture */
1072 vp = &is->pictq[is->pictq_rindex];
1074 /* update current video pts */
1075 is->video_current_pts = vp->pts;
1076 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1078 if(is->subtitle_st) {
1079 if (is->subtitle_stream_changed) {
1080 SDL_LockMutex(is->subpq_mutex);
1082 while (is->subpq_size) {
1083 free_subpicture(&is->subpq[is->subpq_rindex]);
1085 /* update queue size and signal for next picture */
1086 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1087 is->subpq_rindex = 0;
1091 is->subtitle_stream_changed = 0;
1093 SDL_CondSignal(is->subpq_cond);
1094 SDL_UnlockMutex(is->subpq_mutex);
1096 if (is->subpq_size > 0) {
1097 sp = &is->subpq[is->subpq_rindex];
1099 if (is->subpq_size > 1)
1100 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1104 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1105 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1107 free_subpicture(sp);
1109 /* update queue size and signal for next picture */
1110 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1111 is->subpq_rindex = 0;
1113 SDL_LockMutex(is->subpq_mutex);
1115 SDL_CondSignal(is->subpq_cond);
1116 SDL_UnlockMutex(is->subpq_mutex);
1122 /* display picture */
1125 /* update queue size and signal for next picture */
1126 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1127 is->pictq_rindex = 0;
1129 SDL_LockMutex(is->pictq_mutex);
1132 SDL_CondSignal(is->pictq_cond);
1133 SDL_UnlockMutex(is->pictq_mutex);
1135 } else if (is->audio_st) {
1136 /* draw the next audio frame */
1138 schedule_refresh(is, 40);
1140 /* if only audio stream, then display the audio bars (better
1141 than nothing, just to test the implementation */
1143 /* display picture */
1146 schedule_refresh(is, 100);
1149 static int64_t last_time;
1151 int aqsize, vqsize, sqsize;
1154 cur_time = av_gettime();
1155 if (!last_time || (cur_time - last_time) >= 30000) {
1160 aqsize = is->audioq.size;
1162 vqsize = is->videoq.size;
1163 if (is->subtitle_st)
1164 sqsize = is->subtitleq.size;
1166 if (is->audio_st && is->video_st)
1167 av_diff = get_audio_clock(is) - get_video_clock(is);
1168 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB f=%Ld/%Ld \r",
1169 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1171 last_time = cur_time;
1176 /* allocate a picture (needs to do that in main thread to avoid
1177 potential locking problems */
1178 static void alloc_picture(void *opaque)
1180 VideoState *is = opaque;
1183 vp = &is->pictq[is->pictq_windex];
1186 SDL_FreeYUVOverlay(vp->bmp);
1188 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1189 is->video_st->codec->height,
1192 vp->width = is->video_st->codec->width;
1193 vp->height = is->video_st->codec->height;
1195 SDL_LockMutex(is->pictq_mutex);
1197 SDL_CondSignal(is->pictq_cond);
1198 SDL_UnlockMutex(is->pictq_mutex);
1203 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1205 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
1210 /* wait until we have space to put a new picture */
1211 SDL_LockMutex(is->pictq_mutex);
1212 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1213 !is->videoq.abort_request) {
1214 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1216 SDL_UnlockMutex(is->pictq_mutex);
1218 if (is->videoq.abort_request)
1221 vp = &is->pictq[is->pictq_windex];
1223 /* alloc or resize hardware picture buffer */
1225 vp->width != is->video_st->codec->width ||
1226 vp->height != is->video_st->codec->height) {
1231 /* the allocation must be done in the main thread to avoid
1233 event.type = FF_ALLOC_EVENT;
1234 event.user.data1 = is;
1235 SDL_PushEvent(&event);
1237 /* wait until the picture is allocated */
1238 SDL_LockMutex(is->pictq_mutex);
1239 while (!vp->allocated && !is->videoq.abort_request) {
1240 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1242 SDL_UnlockMutex(is->pictq_mutex);
1244 if (is->videoq.abort_request)
1248 /* if the frame is not skipped, then display it */
1252 /* get a pointer on the bitmap */
1253 SDL_LockYUVOverlay (vp->bmp);
1255 dst_pix_fmt = PIX_FMT_YUV420P;
1256 memset(&pict,0,sizeof(AVPicture));
1257 pict.data[0] = vp->bmp->pixels[0];
1258 pict.data[1] = vp->bmp->pixels[2];
1259 pict.data[2] = vp->bmp->pixels[1];
1261 pict.linesize[0] = vp->bmp->pitches[0];
1262 pict.linesize[1] = vp->bmp->pitches[2];
1263 pict.linesize[2] = vp->bmp->pitches[1];
1264 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1265 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1266 is->video_st->codec->width, is->video_st->codec->height,
1267 is->video_st->codec->pix_fmt,
1268 is->video_st->codec->width, is->video_st->codec->height,
1269 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1270 if (is->img_convert_ctx == NULL) {
1271 fprintf(stderr, "Cannot initialize the conversion context\n");
1274 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1275 0, is->video_st->codec->height, pict.data, pict.linesize);
1276 /* update the bitmap content */
1277 SDL_UnlockYUVOverlay(vp->bmp);
1281 /* now we can update the picture count */
1282 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1283 is->pictq_windex = 0;
1284 SDL_LockMutex(is->pictq_mutex);
1286 //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
1287 vp->timer_id= schedule_refresh(is, (int)(compute_frame_delay(vp->pts, is) * 1000 + 0.5));
1288 SDL_UnlockMutex(is->pictq_mutex);
1294 * compute the exact PTS for the picture if it is omitted in the stream
1295 * @param pts1 the dts of the pkt / pts of the frame
1297 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
1299 double frame_delay, pts;
1304 /* update video clock with pts, if present */
1305 is->video_clock = pts;
1307 pts = is->video_clock;
1309 /* update video clock for next frame */
1310 frame_delay = av_q2d(is->video_st->codec->time_base);
1311 /* for MPEG2, the frame can be repeated, so we update the
1312 clock accordingly */
1313 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1314 is->video_clock += frame_delay;
1316 #if defined(DEBUG_SYNC) && 0
1319 if (src_frame->pict_type == FF_B_TYPE)
1321 else if (src_frame->pict_type == FF_I_TYPE)
1325 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1329 return queue_picture(is, src_frame, pts);
1332 static int video_thread(void *arg)
1334 VideoState *is = arg;
1335 AVPacket pkt1, *pkt = &pkt1;
1336 int len1, got_picture, i;
1337 AVFrame *frame= avcodec_alloc_frame();
1341 while (is->paused && !is->videoq.abort_request) {
1344 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1347 if(pkt->data == flush_pkt.data){
1348 avcodec_flush_buffers(is->video_st->codec);
1350 SDL_LockMutex(is->pictq_mutex);
1351 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1352 for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1353 if(is->pictq[i].timer_id){
1354 SDL_RemoveTimer(is->pictq[i].timer_id);
1355 is->pictq[i].timer_id=0;
1356 schedule_refresh(is, 1);
1359 while (is->pictq_size && !is->videoq.abort_request) {
1360 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1362 SDL_UnlockMutex(is->pictq_mutex);
1364 is->last_dts_for_fault_detection=
1365 is->last_pts_for_fault_detection= INT64_MIN;
1366 is->frame_last_pts= AV_NOPTS_VALUE;
1367 is->frame_last_delay = 0;
1372 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1373 this packet, if any */
1374 is->video_st->codec->reordered_opaque= pkt->pts;
1375 len1 = avcodec_decode_video2(is->video_st->codec,
1376 frame, &got_picture,
1380 if(pkt->dts != AV_NOPTS_VALUE){
1381 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1382 is->last_dts_for_fault_detection= pkt->dts;
1384 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1385 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1386 is->last_pts_for_fault_detection= frame->reordered_opaque;
1390 if( ( decoder_reorder_pts==1
1391 || (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
1392 || pkt->dts == AV_NOPTS_VALUE)
1393 && frame->reordered_opaque != AV_NOPTS_VALUE)
1394 pts= frame->reordered_opaque;
1395 else if(pkt->dts != AV_NOPTS_VALUE)
1399 pts *= av_q2d(is->video_st->time_base);
1404 if (output_picture2(is, frame, pts) < 0)
1407 av_free_packet(pkt);
1410 stream_pause(cur_stream);
1417 static int subtitle_thread(void *arg)
1419 VideoState *is = arg;
1421 AVPacket pkt1, *pkt = &pkt1;
1422 int len1, got_subtitle;
1425 int r, g, b, y, u, v, a;
1428 while (is->paused && !is->subtitleq.abort_request) {
1431 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1434 if(pkt->data == flush_pkt.data){
1435 avcodec_flush_buffers(is->subtitle_st->codec);
1438 SDL_LockMutex(is->subpq_mutex);
1439 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1440 !is->subtitleq.abort_request) {
1441 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1443 SDL_UnlockMutex(is->subpq_mutex);
1445 if (is->subtitleq.abort_request)
1448 sp = &is->subpq[is->subpq_windex];
1450 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1451 this packet, if any */
1453 if (pkt->pts != AV_NOPTS_VALUE)
1454 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1456 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1457 &sp->sub, &got_subtitle,
1461 if (got_subtitle && sp->sub.format == 0) {
1464 for (i = 0; i < sp->sub.num_rects; i++)
1466 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1468 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1469 y = RGB_TO_Y_CCIR(r, g, b);
1470 u = RGB_TO_U_CCIR(r, g, b, 0);
1471 v = RGB_TO_V_CCIR(r, g, b, 0);
1472 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1476 /* now we can update the picture count */
1477 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1478 is->subpq_windex = 0;
1479 SDL_LockMutex(is->subpq_mutex);
1481 SDL_UnlockMutex(is->subpq_mutex);
1483 av_free_packet(pkt);
1486 // stream_pause(cur_stream);
1492 /* copy samples for viewing in editor window */
1493 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1495 int size, len, channels;
1497 channels = is->audio_st->codec->channels;
1499 size = samples_size / sizeof(short);
1501 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1504 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1506 is->sample_array_index += len;
1507 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1508 is->sample_array_index = 0;
1513 /* return the new audio buffer size (samples can be added or deleted
1514 to get better sync if video or external master clock) */
1515 static int synchronize_audio(VideoState *is, short *samples,
1516 int samples_size1, double pts)
1518 int n, samples_size;
1521 n = 2 * is->audio_st->codec->channels;
1522 samples_size = samples_size1;
1524 /* if not master, then we try to remove or add samples to correct the clock */
1525 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1526 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1527 double diff, avg_diff;
1528 int wanted_size, min_size, max_size, nb_samples;
1530 ref_clock = get_master_clock(is);
1531 diff = get_audio_clock(is) - ref_clock;
1533 if (diff < AV_NOSYNC_THRESHOLD) {
1534 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1535 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1536 /* not enough measures to have a correct estimate */
1537 is->audio_diff_avg_count++;
1539 /* estimate the A-V difference */
1540 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1542 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1543 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1544 nb_samples = samples_size / n;
1546 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1547 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1548 if (wanted_size < min_size)
1549 wanted_size = min_size;
1550 else if (wanted_size > max_size)
1551 wanted_size = max_size;
1553 /* add or remove samples to correction the synchro */
1554 if (wanted_size < samples_size) {
1555 /* remove samples */
1556 samples_size = wanted_size;
1557 } else if (wanted_size > samples_size) {
1558 uint8_t *samples_end, *q;
1562 nb = (samples_size - wanted_size);
1563 samples_end = (uint8_t *)samples + samples_size - n;
1564 q = samples_end + n;
1566 memcpy(q, samples_end, n);
1570 samples_size = wanted_size;
1574 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1575 diff, avg_diff, samples_size - samples_size1,
1576 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1580 /* too big difference : may be initial PTS errors, so
1582 is->audio_diff_avg_count = 0;
1583 is->audio_diff_cum = 0;
1587 return samples_size;
1590 /* decode one audio frame and returns its uncompressed size */
1591 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1593 AVPacket *pkt_temp = &is->audio_pkt_temp;
1594 AVPacket *pkt = &is->audio_pkt;
1595 AVCodecContext *dec= is->audio_st->codec;
1596 int n, len1, data_size;
1600 /* NOTE: the audio packet can contain several frames */
1601 while (pkt_temp->size > 0) {
1602 data_size = sizeof(is->audio_buf1);
1603 len1 = avcodec_decode_audio3(dec,
1604 (int16_t *)is->audio_buf1, &data_size,
1607 /* if error, we skip the frame */
1612 pkt_temp->data += len1;
1613 pkt_temp->size -= len1;
1617 if (dec->sample_fmt != is->audio_src_fmt) {
1618 if (is->reformat_ctx)
1619 av_audio_convert_free(is->reformat_ctx);
1620 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
1621 dec->sample_fmt, 1, NULL, 0);
1622 if (!is->reformat_ctx) {
1623 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
1624 avcodec_get_sample_fmt_name(dec->sample_fmt),
1625 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
1628 is->audio_src_fmt= dec->sample_fmt;
1631 if (is->reformat_ctx) {
1632 const void *ibuf[6]= {is->audio_buf1};
1633 void *obuf[6]= {is->audio_buf2};
1634 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
1635 int ostride[6]= {2};
1636 int len= data_size/istride[0];
1637 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
1638 printf("av_audio_convert() failed\n");
1641 is->audio_buf= is->audio_buf2;
1642 /* FIXME: existing code assume that data_size equals framesize*channels*2
1643 remove this legacy cruft */
1646 is->audio_buf= is->audio_buf1;
1649 /* if no pts, then compute it */
1650 pts = is->audio_clock;
1652 n = 2 * dec->channels;
1653 is->audio_clock += (double)data_size /
1654 (double)(n * dec->sample_rate);
1655 #if defined(DEBUG_SYNC)
1657 static double last_clock;
1658 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1659 is->audio_clock - last_clock,
1660 is->audio_clock, pts);
1661 last_clock = is->audio_clock;
1667 /* free the current packet */
1669 av_free_packet(pkt);
1671 if (is->paused || is->audioq.abort_request) {
1675 /* read next packet */
1676 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1678 if(pkt->data == flush_pkt.data){
1679 avcodec_flush_buffers(dec);
1683 pkt_temp->data = pkt->data;
1684 pkt_temp->size = pkt->size;
1686 /* if update the audio clock with the pts */
1687 if (pkt->pts != AV_NOPTS_VALUE) {
1688 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1693 /* get the current audio output buffer size, in samples. With SDL, we
1694 cannot have a precise information */
1695 static int audio_write_get_buf_size(VideoState *is)
1697 return is->audio_buf_size - is->audio_buf_index;
1701 /* prepare a new audio buffer */
1702 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1704 VideoState *is = opaque;
1705 int audio_size, len1;
1708 audio_callback_time = av_gettime();
1711 if (is->audio_buf_index >= is->audio_buf_size) {
1712 audio_size = audio_decode_frame(is, &pts);
1713 if (audio_size < 0) {
1714 /* if error, just output silence */
1715 is->audio_buf = is->audio_buf1;
1716 is->audio_buf_size = 1024;
1717 memset(is->audio_buf, 0, is->audio_buf_size);
1720 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1721 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1723 is->audio_buf_size = audio_size;
1725 is->audio_buf_index = 0;
1727 len1 = is->audio_buf_size - is->audio_buf_index;
1730 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1733 is->audio_buf_index += len1;
1737 /* open a given stream. Return 0 if OK */
1738 static int stream_component_open(VideoState *is, int stream_index)
1740 AVFormatContext *ic = is->ic;
1741 AVCodecContext *enc;
1743 SDL_AudioSpec wanted_spec, spec;
1745 if (stream_index < 0 || stream_index >= ic->nb_streams)
1747 enc = ic->streams[stream_index]->codec;
1749 /* prepare audio output */
1750 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1751 if (enc->channels > 0) {
1752 enc->request_channels = FFMIN(2, enc->channels);
1754 enc->request_channels = 2;
1758 codec = avcodec_find_decoder(enc->codec_id);
1759 enc->debug_mv = debug_mv;
1761 enc->workaround_bugs = workaround_bugs;
1762 enc->lowres = lowres;
1763 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1764 enc->idct_algo= idct;
1765 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1766 enc->skip_frame= skip_frame;
1767 enc->skip_idct= skip_idct;
1768 enc->skip_loop_filter= skip_loop_filter;
1769 enc->error_recognition= error_recognition;
1770 enc->error_concealment= error_concealment;
1771 avcodec_thread_init(enc, thread_count);
1773 set_context_opts(enc, avcodec_opts[enc->codec_type], 0);
1776 avcodec_open(enc, codec) < 0)
1779 /* prepare audio output */
1780 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1781 wanted_spec.freq = enc->sample_rate;
1782 wanted_spec.format = AUDIO_S16SYS;
1783 wanted_spec.channels = enc->channels;
1784 wanted_spec.silence = 0;
1785 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1786 wanted_spec.callback = sdl_audio_callback;
1787 wanted_spec.userdata = is;
1788 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1789 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1792 is->audio_hw_buf_size = spec.size;
1793 is->audio_src_fmt= SAMPLE_FMT_S16;
1796 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
1797 switch(enc->codec_type) {
1798 case CODEC_TYPE_AUDIO:
1799 is->audio_stream = stream_index;
1800 is->audio_st = ic->streams[stream_index];
1801 is->audio_buf_size = 0;
1802 is->audio_buf_index = 0;
1804 /* init averaging filter */
1805 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1806 is->audio_diff_avg_count = 0;
1807 /* since we do not have a precise anough audio fifo fullness,
1808 we correct audio sync only if larger than this threshold */
1809 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1811 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1812 packet_queue_init(&is->audioq);
1815 case CODEC_TYPE_VIDEO:
1816 is->video_stream = stream_index;
1817 is->video_st = ic->streams[stream_index];
1819 is->frame_timer = (double)av_gettime() / 1000000.0;
1820 // is->video_current_pts_time = av_gettime();
1822 packet_queue_init(&is->videoq);
1823 is->video_tid = SDL_CreateThread(video_thread, is);
1825 case CODEC_TYPE_SUBTITLE:
1826 is->subtitle_stream = stream_index;
1827 is->subtitle_st = ic->streams[stream_index];
1828 packet_queue_init(&is->subtitleq);
1830 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1838 static void stream_component_close(VideoState *is, int stream_index)
1840 AVFormatContext *ic = is->ic;
1841 AVCodecContext *enc;
1843 if (stream_index < 0 || stream_index >= ic->nb_streams)
1845 enc = ic->streams[stream_index]->codec;
1847 switch(enc->codec_type) {
1848 case CODEC_TYPE_AUDIO:
1849 packet_queue_abort(&is->audioq);
1853 packet_queue_end(&is->audioq);
1854 if (is->reformat_ctx)
1855 av_audio_convert_free(is->reformat_ctx);
1857 case CODEC_TYPE_VIDEO:
1858 packet_queue_abort(&is->videoq);
1860 /* note: we also signal this mutex to make sure we deblock the
1861 video thread in all cases */
1862 SDL_LockMutex(is->pictq_mutex);
1863 SDL_CondSignal(is->pictq_cond);
1864 SDL_UnlockMutex(is->pictq_mutex);
1866 SDL_WaitThread(is->video_tid, NULL);
1868 packet_queue_end(&is->videoq);
1870 case CODEC_TYPE_SUBTITLE:
1871 packet_queue_abort(&is->subtitleq);
1873 /* note: we also signal this mutex to make sure we deblock the
1874 video thread in all cases */
1875 SDL_LockMutex(is->subpq_mutex);
1876 is->subtitle_stream_changed = 1;
1878 SDL_CondSignal(is->subpq_cond);
1879 SDL_UnlockMutex(is->subpq_mutex);
1881 SDL_WaitThread(is->subtitle_tid, NULL);
1883 packet_queue_end(&is->subtitleq);
1889 ic->streams[stream_index]->discard = AVDISCARD_ALL;
1891 switch(enc->codec_type) {
1892 case CODEC_TYPE_AUDIO:
1893 is->audio_st = NULL;
1894 is->audio_stream = -1;
1896 case CODEC_TYPE_VIDEO:
1897 is->video_st = NULL;
1898 is->video_stream = -1;
1900 case CODEC_TYPE_SUBTITLE:
1901 is->subtitle_st = NULL;
1902 is->subtitle_stream = -1;
1909 /* since we have only one decoding thread, we can use a global
1910 variable instead of a thread local variable */
1911 static VideoState *global_video_state;
1913 static int decode_interrupt_cb(void)
1915 return (global_video_state && global_video_state->abort_request);
1918 /* this thread gets the stream from the disk or the network */
1919 static int decode_thread(void *arg)
1921 VideoState *is = arg;
1922 AVFormatContext *ic;
1923 int err, i, ret, video_index, audio_index, subtitle_index;
1924 AVPacket pkt1, *pkt = &pkt1;
1925 AVFormatParameters params, *ap = ¶ms;
1928 ic = avformat_alloc_context();
1932 subtitle_index = -1;
1933 is->video_stream = -1;
1934 is->audio_stream = -1;
1935 is->subtitle_stream = -1;
1937 global_video_state = is;
1938 url_set_interrupt_cb(decode_interrupt_cb);
1940 memset(ap, 0, sizeof(*ap));
1942 ap->prealloced_context = 1;
1943 ap->width = frame_width;
1944 ap->height= frame_height;
1945 ap->time_base= (AVRational){1, 25};
1946 ap->pix_fmt = frame_pix_fmt;
1948 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
1950 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1952 print_error(is->filename, err);
1959 ic->flags |= AVFMT_FLAG_GENPTS;
1961 err = av_find_stream_info(ic);
1963 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1968 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
1970 /* if seeking requested, we execute it */
1971 if (start_time != AV_NOPTS_VALUE) {
1974 timestamp = start_time;
1975 /* add the stream start time */
1976 if (ic->start_time != AV_NOPTS_VALUE)
1977 timestamp += ic->start_time;
1978 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
1980 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1981 is->filename, (double)timestamp / AV_TIME_BASE);
1985 for(i = 0; i < ic->nb_streams; i++) {
1986 AVCodecContext *enc = ic->streams[i]->codec;
1987 ic->streams[i]->discard = AVDISCARD_ALL;
1988 switch(enc->codec_type) {
1989 case CODEC_TYPE_AUDIO:
1990 if (wanted_audio_stream-- >= 0 && !audio_disable)
1993 case CODEC_TYPE_VIDEO:
1994 if (wanted_video_stream-- >= 0 && !video_disable)
1997 case CODEC_TYPE_SUBTITLE:
1998 if (wanted_subtitle_stream-- >= 0 && !video_disable)
2006 dump_format(ic, 0, is->filename, 0);
2009 /* open the streams */
2010 if (audio_index >= 0) {
2011 stream_component_open(is, audio_index);
2014 if (video_index >= 0) {
2015 stream_component_open(is, video_index);
2017 if (!display_disable)
2021 if (subtitle_index >= 0) {
2022 stream_component_open(is, subtitle_index);
2025 if (is->video_stream < 0 && is->audio_stream < 0) {
2026 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2032 if (is->abort_request)
2034 if (is->paused != is->last_paused) {
2035 is->last_paused = is->paused;
2037 is->read_pause_return= av_read_pause(ic);
2041 #if CONFIG_RTSP_DEMUXER
2042 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2043 /* wait 10 ms to avoid trying to get another packet */
2050 int64_t seek_target= is->seek_pos;
2051 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2052 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2053 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2054 // of the seek_pos/seek_rel variables
2056 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2058 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2060 if (is->audio_stream >= 0) {
2061 packet_queue_flush(&is->audioq);
2062 packet_queue_put(&is->audioq, &flush_pkt);
2064 if (is->subtitle_stream >= 0) {
2065 packet_queue_flush(&is->subtitleq);
2066 packet_queue_put(&is->subtitleq, &flush_pkt);
2068 if (is->video_stream >= 0) {
2069 packet_queue_flush(&is->videoq);
2070 packet_queue_put(&is->videoq, &flush_pkt);
2077 /* if the queue are full, no need to read more */
2078 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2079 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2080 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2081 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2086 if(url_feof(ic->pb) || eof) {
2087 if(is->video_stream >= 0){
2088 av_init_packet(pkt);
2091 pkt->stream_index= is->video_stream;
2092 packet_queue_put(&is->videoq, pkt);
2097 ret = av_read_frame(ic, pkt);
2099 if (ret == AVERROR_EOF)
2101 if (url_ferror(ic->pb))
2103 SDL_Delay(100); /* wait for user event */
2106 if (pkt->stream_index == is->audio_stream) {
2107 packet_queue_put(&is->audioq, pkt);
2108 } else if (pkt->stream_index == is->video_stream) {
2109 packet_queue_put(&is->videoq, pkt);
2110 } else if (pkt->stream_index == is->subtitle_stream) {
2111 packet_queue_put(&is->subtitleq, pkt);
2113 av_free_packet(pkt);
2116 /* wait until the end */
2117 while (!is->abort_request) {
2123 /* disable interrupting */
2124 global_video_state = NULL;
2126 /* close each stream */
2127 if (is->audio_stream >= 0)
2128 stream_component_close(is, is->audio_stream);
2129 if (is->video_stream >= 0)
2130 stream_component_close(is, is->video_stream);
2131 if (is->subtitle_stream >= 0)
2132 stream_component_close(is, is->subtitle_stream);
2134 av_close_input_file(is->ic);
2135 is->ic = NULL; /* safety */
2137 url_set_interrupt_cb(NULL);
2142 event.type = FF_QUIT_EVENT;
2143 event.user.data1 = is;
2144 SDL_PushEvent(&event);
2149 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2153 is = av_mallocz(sizeof(VideoState));
2156 av_strlcpy(is->filename, filename, sizeof(is->filename));
2157 is->iformat = iformat;
2161 /* start video display */
2162 is->pictq_mutex = SDL_CreateMutex();
2163 is->pictq_cond = SDL_CreateCond();
2165 is->subpq_mutex = SDL_CreateMutex();
2166 is->subpq_cond = SDL_CreateCond();
2168 /* add the refresh timer to draw the picture */
2169 schedule_refresh(is, 40);
2171 is->av_sync_type = av_sync_type;
2172 is->parse_tid = SDL_CreateThread(decode_thread, is);
2173 if (!is->parse_tid) {
2180 static void stream_close(VideoState *is)
2184 /* XXX: use a special url_shutdown call to abort parse cleanly */
2185 is->abort_request = 1;
2186 SDL_WaitThread(is->parse_tid, NULL);
2188 /* free all pictures */
2189 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2192 SDL_FreeYUVOverlay(vp->bmp);
2196 SDL_DestroyMutex(is->pictq_mutex);
2197 SDL_DestroyCond(is->pictq_cond);
2198 SDL_DestroyMutex(is->subpq_mutex);
2199 SDL_DestroyCond(is->subpq_cond);
2200 if (is->img_convert_ctx)
2201 sws_freeContext(is->img_convert_ctx);
2205 static void stream_cycle_channel(VideoState *is, int codec_type)
2207 AVFormatContext *ic = is->ic;
2208 int start_index, stream_index;
2211 if (codec_type == CODEC_TYPE_VIDEO)
2212 start_index = is->video_stream;
2213 else if (codec_type == CODEC_TYPE_AUDIO)
2214 start_index = is->audio_stream;
2216 start_index = is->subtitle_stream;
2217 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2219 stream_index = start_index;
2221 if (++stream_index >= is->ic->nb_streams)
2223 if (codec_type == CODEC_TYPE_SUBTITLE)
2230 if (stream_index == start_index)
2232 st = ic->streams[stream_index];
2233 if (st->codec->codec_type == codec_type) {
2234 /* check that parameters are OK */
2235 switch(codec_type) {
2236 case CODEC_TYPE_AUDIO:
2237 if (st->codec->sample_rate != 0 &&
2238 st->codec->channels != 0)
2241 case CODEC_TYPE_VIDEO:
2242 case CODEC_TYPE_SUBTITLE:
2250 stream_component_close(is, start_index);
2251 stream_component_open(is, stream_index);
2255 static void toggle_full_screen(void)
2257 is_full_screen = !is_full_screen;
2258 if (!fs_screen_width) {
2259 /* use default SDL method */
2260 // SDL_WM_ToggleFullScreen(screen);
2262 video_open(cur_stream);
2265 static void toggle_pause(void)
2268 stream_pause(cur_stream);
2272 static void step_to_next_frame(void)
2275 /* if the stream is paused unpause it, then step */
2276 if (cur_stream->paused)
2277 stream_pause(cur_stream);
2282 static void do_exit(void)
2286 stream_close(cur_stream);
2289 for (i = 0; i < CODEC_TYPE_NB; i++)
2290 av_free(avcodec_opts[i]);
2291 av_free(avformat_opts);
2299 static void toggle_audio_display(void)
2302 cur_stream->show_audio = !cur_stream->show_audio;
2306 /* handle an event sent by the GUI */
2307 static void event_loop(void)
2310 double incr, pos, frac;
2313 SDL_WaitEvent(&event);
2314 switch(event.type) {
2316 switch(event.key.keysym.sym) {
2322 toggle_full_screen();
2328 case SDLK_s: //S: Step to next frame
2329 step_to_next_frame();
2333 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2337 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2341 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2344 toggle_audio_display();
2359 if (seek_by_bytes) {
2360 pos = url_ftell(cur_stream->ic->pb);
2361 if (cur_stream->ic->bit_rate)
2362 incr *= cur_stream->ic->bit_rate / 60.0;
2366 stream_seek(cur_stream, pos, incr, 1);
2368 pos = get_master_clock(cur_stream);
2370 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2378 case SDL_MOUSEBUTTONDOWN:
2380 if(seek_by_bytes || cur_stream->ic->duration<=0){
2381 uint64_t size= url_fsize(cur_stream->ic->pb);
2382 stream_seek(cur_stream, size*(double)event.button.x/(double)cur_stream->width, 0, 1);
2386 int tns, thh, tmm, tss;
2387 tns = cur_stream->ic->duration/1000000LL;
2389 tmm = (tns%3600)/60;
2391 frac = (double)event.button.x/(double)cur_stream->width;
2396 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2397 hh, mm, ss, thh, tmm, tss);
2398 ts = frac*cur_stream->ic->duration;
2399 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2400 ts += cur_stream->ic->start_time;
2401 stream_seek(cur_stream, ts, 0, 0);
2405 case SDL_VIDEORESIZE:
2407 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2408 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2409 screen_width = cur_stream->width = event.resize.w;
2410 screen_height= cur_stream->height= event.resize.h;
2417 case FF_ALLOC_EVENT:
2418 video_open(event.user.data1);
2419 alloc_picture(event.user.data1);
2421 case FF_REFRESH_EVENT:
2422 video_refresh_timer(event.user.data1);
2430 static void opt_frame_size(const char *arg)
2432 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2433 fprintf(stderr, "Incorrect frame size\n");
2436 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2437 fprintf(stderr, "Frame size must be a multiple of 2\n");
2442 static int opt_width(const char *opt, const char *arg)
2444 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2448 static int opt_height(const char *opt, const char *arg)
2450 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2454 static void opt_format(const char *arg)
2456 file_iformat = av_find_input_format(arg);
2457 if (!file_iformat) {
2458 fprintf(stderr, "Unknown input format: %s\n", arg);
2463 static void opt_frame_pix_fmt(const char *arg)
2465 frame_pix_fmt = av_get_pix_fmt(arg);
2468 static int opt_sync(const char *opt, const char *arg)
2470 if (!strcmp(arg, "audio"))
2471 av_sync_type = AV_SYNC_AUDIO_MASTER;
2472 else if (!strcmp(arg, "video"))
2473 av_sync_type = AV_SYNC_VIDEO_MASTER;
2474 else if (!strcmp(arg, "ext"))
2475 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2477 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2483 static int opt_seek(const char *opt, const char *arg)
2485 start_time = parse_time_or_die(opt, arg, 1);
2489 static int opt_debug(const char *opt, const char *arg)
2491 av_log_set_level(99);
2492 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2496 static int opt_vismv(const char *opt, const char *arg)
2498 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2502 static int opt_thread_count(const char *opt, const char *arg)
2504 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2506 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2511 static const OptionDef options[] = {
2512 #include "cmdutils_common_opts.h"
2513 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2514 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2515 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2516 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2517 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2518 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2519 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "select desired audio stream", "stream_number" },
2520 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "select desired video stream", "stream_number" },
2521 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_subtitle_stream}, "select desired subtitle stream", "stream_number" },
2522 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2523 { "bytes", OPT_BOOL, {(void*)&seek_by_bytes}, "seek by bytes" },
2524 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2525 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2526 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2527 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2528 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2529 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2530 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2531 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2532 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2533 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2534 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2535 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2536 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2537 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2538 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2539 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2540 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2541 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2542 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2543 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2547 static void show_usage(void)
2549 printf("Simple media player\n");
2550 printf("usage: ffplay [options] input_file\n");
2554 static void show_help(void)
2557 show_help_options(options, "Main options:\n",
2559 show_help_options(options, "\nAdvanced options:\n",
2560 OPT_EXPERT, OPT_EXPERT);
2561 printf("\nWhile playing:\n"
2563 "f toggle full screen\n"
2565 "a cycle audio channel\n"
2566 "v cycle video channel\n"
2567 "t cycle subtitle channel\n"
2568 "w show audio waves\n"
2569 "left/right seek backward/forward 10 seconds\n"
2570 "down/up seek backward/forward 1 minute\n"
2571 "mouse click seek to percentage in file corresponding to fraction of width\n"
2575 static void opt_input_file(const char *filename)
2577 if (!strcmp(filename, "-"))
2579 input_filename = filename;
2582 /* Called from the main */
2583 int main(int argc, char **argv)
2587 /* register all codecs, demux and protocols */
2588 avcodec_register_all();
2589 avdevice_register_all();
2592 for(i=0; i<CODEC_TYPE_NB; i++){
2593 avcodec_opts[i]= avcodec_alloc_context2(i);
2595 avformat_opts = avformat_alloc_context();
2596 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
2600 parse_options(argc, argv, options, opt_input_file);
2602 if (!input_filename) {
2604 fprintf(stderr, "An input file must be specified\n");
2605 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
2609 if (display_disable) {
2612 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2613 #if !defined(__MINGW32__) && !defined(__APPLE__)
2614 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
2616 if (SDL_Init (flags)) {
2617 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2621 if (!display_disable) {
2622 #if HAVE_SDL_VIDEO_SIZE
2623 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2624 fs_screen_width = vi->current_w;
2625 fs_screen_height = vi->current_h;
2629 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2630 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2631 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2632 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2634 av_init_packet(&flush_pkt);
2635 flush_pkt.data= "FLUSH";
2637 cur_stream = stream_open(input_filename, file_iformat);