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 */
95 typedef struct SubPicture {
96 double pts; /* presentation time stamp for this picture */
101 AV_SYNC_AUDIO_MASTER, /* default choice */
102 AV_SYNC_VIDEO_MASTER,
103 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
106 typedef struct VideoState {
107 SDL_Thread *parse_tid;
108 SDL_Thread *video_tid;
109 AVInputFormat *iformat;
119 int dtg_active_format;
124 double external_clock; /* external clock base */
125 int64_t external_clock_time;
128 double audio_diff_cum; /* used for AV difference average computation */
129 double audio_diff_avg_coef;
130 double audio_diff_threshold;
131 int audio_diff_avg_count;
134 int audio_hw_buf_size;
135 /* samples output by the codec. we reserve more space for avsync
137 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
138 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
140 unsigned int audio_buf_size; /* in bytes */
141 int audio_buf_index; /* in bytes */
142 AVPacket audio_pkt_temp;
144 enum SampleFormat audio_src_fmt;
145 AVAudioConvert *reformat_ctx;
147 int show_audio; /* if true, display audio samples */
148 int16_t sample_array[SAMPLE_ARRAY_SIZE];
149 int sample_array_index;
152 SDL_Thread *subtitle_tid;
154 int subtitle_stream_changed;
155 AVStream *subtitle_st;
156 PacketQueue subtitleq;
157 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
158 int subpq_size, subpq_rindex, subpq_windex;
159 SDL_mutex *subpq_mutex;
160 SDL_cond *subpq_cond;
163 double frame_last_pts;
164 double frame_last_delay;
165 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
169 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
170 int64_t video_current_pts_time; ///<time (av_gettime) at which we updated video_current_pts - used to have running video pts
171 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
172 int pictq_size, pictq_rindex, pictq_windex;
173 SDL_mutex *pictq_mutex;
174 SDL_cond *pictq_cond;
175 struct SwsContext *img_convert_ctx;
177 // QETimer *video_timer;
179 int width, height, xleft, ytop;
183 int64_t last_dts_for_fault_detection;
184 int64_t last_pts_for_fault_detection;
188 static void show_help(void);
189 static int audio_write_get_buf_size(VideoState *is);
191 /* options specified by the user */
192 static AVInputFormat *file_iformat;
193 static const char *input_filename;
194 static int fs_screen_width;
195 static int fs_screen_height;
196 static int screen_width = 0;
197 static int screen_height = 0;
198 static int frame_width = 0;
199 static int frame_height = 0;
200 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
201 static int audio_disable;
202 static int video_disable;
203 static int wanted_audio_stream= 0;
204 static int wanted_video_stream= 0;
205 static int wanted_subtitle_stream= -1;
206 static int seek_by_bytes;
207 static int display_disable;
208 static int show_status = 1;
209 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
210 static int64_t start_time = AV_NOPTS_VALUE;
211 static int debug = 0;
212 static int debug_mv = 0;
214 static int thread_count = 1;
215 static int workaround_bugs = 1;
217 static int genpts = 0;
218 static int lowres = 0;
219 static int idct = FF_IDCT_AUTO;
220 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
221 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
222 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
223 static int error_recognition = FF_ER_CAREFUL;
224 static int error_concealment = 3;
225 static int decoder_reorder_pts= -1;
227 /* current context */
228 static int is_full_screen;
229 static VideoState *cur_stream;
230 static int64_t audio_callback_time;
232 static AVPacket flush_pkt;
234 #define FF_ALLOC_EVENT (SDL_USEREVENT)
235 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
236 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
238 static SDL_Surface *screen;
240 /* packet queue handling */
241 static void packet_queue_init(PacketQueue *q)
243 memset(q, 0, sizeof(PacketQueue));
244 q->mutex = SDL_CreateMutex();
245 q->cond = SDL_CreateCond();
248 static void packet_queue_flush(PacketQueue *q)
250 AVPacketList *pkt, *pkt1;
252 SDL_LockMutex(q->mutex);
253 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
255 av_free_packet(&pkt->pkt);
262 SDL_UnlockMutex(q->mutex);
265 static void packet_queue_end(PacketQueue *q)
267 packet_queue_flush(q);
268 SDL_DestroyMutex(q->mutex);
269 SDL_DestroyCond(q->cond);
272 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
276 /* duplicate the packet */
277 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
280 pkt1 = av_malloc(sizeof(AVPacketList));
287 SDL_LockMutex(q->mutex);
293 q->last_pkt->next = pkt1;
296 q->size += pkt1->pkt.size + sizeof(*pkt1);
297 /* XXX: should duplicate packet data in DV case */
298 SDL_CondSignal(q->cond);
300 SDL_UnlockMutex(q->mutex);
304 static void packet_queue_abort(PacketQueue *q)
306 SDL_LockMutex(q->mutex);
308 q->abort_request = 1;
310 SDL_CondSignal(q->cond);
312 SDL_UnlockMutex(q->mutex);
315 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
316 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
321 SDL_LockMutex(q->mutex);
324 if (q->abort_request) {
331 q->first_pkt = pkt1->next;
335 q->size -= pkt1->pkt.size + sizeof(*pkt1);
344 SDL_CondWait(q->cond, q->mutex);
347 SDL_UnlockMutex(q->mutex);
351 static inline void fill_rectangle(SDL_Surface *screen,
352 int x, int y, int w, int h, int color)
359 SDL_FillRect(screen, &rect, color);
363 /* draw only the border of a rectangle */
364 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
368 /* fill the background */
372 w2 = s->width - (x + w);
378 h2 = s->height - (y + h);
381 fill_rectangle(screen,
385 fill_rectangle(screen,
386 s->xleft + s->width - w2, s->ytop,
389 fill_rectangle(screen,
390 s->xleft + w1, s->ytop,
391 s->width - w1 - w2, h1,
393 fill_rectangle(screen,
394 s->xleft + w1, s->ytop + s->height - h2,
395 s->width - w1 - w2, h2,
400 #define ALPHA_BLEND(a, oldp, newp, s)\
401 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
403 #define RGBA_IN(r, g, b, a, s)\
405 unsigned int v = ((const uint32_t *)(s))[0];\
406 a = (v >> 24) & 0xff;\
407 r = (v >> 16) & 0xff;\
408 g = (v >> 8) & 0xff;\
412 #define YUVA_IN(y, u, v, a, s, pal)\
414 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
415 a = (val >> 24) & 0xff;\
416 y = (val >> 16) & 0xff;\
417 u = (val >> 8) & 0xff;\
421 #define YUVA_OUT(d, y, u, v, a)\
423 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
429 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
431 int wrap, wrap3, width2, skip2;
432 int y, u, v, a, u1, v1, a1, w, h;
433 uint8_t *lum, *cb, *cr;
436 int dstx, dsty, dstw, dsth;
438 dstw = av_clip(rect->w, 0, imgw);
439 dsth = av_clip(rect->h, 0, imgh);
440 dstx = av_clip(rect->x, 0, imgw - dstw);
441 dsty = av_clip(rect->y, 0, imgh - dsth);
442 lum = dst->data[0] + dsty * dst->linesize[0];
443 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
444 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
446 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
448 wrap = dst->linesize[0];
449 wrap3 = rect->pict.linesize[0];
450 p = rect->pict.data[0];
451 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
459 YUVA_IN(y, u, v, a, p, pal);
460 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
461 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
462 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
468 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
469 YUVA_IN(y, u, v, a, p, pal);
473 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
475 YUVA_IN(y, u, v, a, p + BPP, pal);
479 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
480 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
481 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
488 YUVA_IN(y, u, v, a, p, pal);
489 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
490 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
491 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
495 p += wrap3 - dstw * BPP;
496 lum += wrap - dstw - dstx;
497 cb += dst->linesize[1] - width2 - skip2;
498 cr += dst->linesize[2] - width2 - skip2;
500 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
506 YUVA_IN(y, u, v, a, p, pal);
510 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
513 YUVA_IN(y, u, v, a, p, pal);
517 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
518 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
519 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
525 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
526 YUVA_IN(y, u, v, a, p, pal);
530 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
532 YUVA_IN(y, u, v, a, p + BPP, pal);
536 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
540 YUVA_IN(y, u, v, a, p, pal);
544 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
546 YUVA_IN(y, u, v, a, p + BPP, pal);
550 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
552 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
553 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
557 p += -wrap3 + 2 * BPP;
561 YUVA_IN(y, u, v, a, p, pal);
565 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
568 YUVA_IN(y, u, v, a, p, pal);
572 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
573 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
574 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
580 p += wrap3 + (wrap3 - dstw * BPP);
581 lum += wrap + (wrap - dstw - dstx);
582 cb += dst->linesize[1] - width2 - skip2;
583 cr += dst->linesize[2] - width2 - skip2;
585 /* handle odd height */
592 YUVA_IN(y, u, v, a, p, pal);
593 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
594 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
595 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
601 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
602 YUVA_IN(y, u, v, a, p, pal);
606 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
608 YUVA_IN(y, u, v, a, p + BPP, pal);
612 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
613 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
614 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
621 YUVA_IN(y, u, v, a, p, pal);
622 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
623 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
624 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
629 static void free_subpicture(SubPicture *sp)
633 for (i = 0; i < sp->sub.num_rects; i++)
635 av_freep(&sp->sub.rects[i]->pict.data[0]);
636 av_freep(&sp->sub.rects[i]->pict.data[1]);
637 av_freep(&sp->sub.rects[i]);
640 av_free(sp->sub.rects);
642 memset(&sp->sub, 0, sizeof(AVSubtitle));
645 static void video_image_display(VideoState *is)
651 int width, height, x, y;
655 vp = &is->pictq[is->pictq_rindex];
657 /* XXX: use variable in the frame */
658 if (is->video_st->sample_aspect_ratio.num)
659 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
660 else if (is->video_st->codec->sample_aspect_ratio.num)
661 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
664 if (aspect_ratio <= 0.0)
666 aspect_ratio *= (float)is->video_st->codec->width / is->video_st->codec->height;
667 /* if an active format is indicated, then it overrides the
670 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
671 is->dtg_active_format = is->video_st->codec->dtg_active_format;
672 printf("dtg_active_format=%d\n", is->dtg_active_format);
676 switch(is->video_st->codec->dtg_active_format) {
677 case FF_DTG_AFD_SAME:
682 aspect_ratio = 4.0 / 3.0;
684 case FF_DTG_AFD_16_9:
685 aspect_ratio = 16.0 / 9.0;
687 case FF_DTG_AFD_14_9:
688 aspect_ratio = 14.0 / 9.0;
690 case FF_DTG_AFD_4_3_SP_14_9:
691 aspect_ratio = 14.0 / 9.0;
693 case FF_DTG_AFD_16_9_SP_14_9:
694 aspect_ratio = 14.0 / 9.0;
696 case FF_DTG_AFD_SP_4_3:
697 aspect_ratio = 4.0 / 3.0;
704 if (is->subpq_size > 0)
706 sp = &is->subpq[is->subpq_rindex];
708 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
710 SDL_LockYUVOverlay (vp->bmp);
712 pict.data[0] = vp->bmp->pixels[0];
713 pict.data[1] = vp->bmp->pixels[2];
714 pict.data[2] = vp->bmp->pixels[1];
716 pict.linesize[0] = vp->bmp->pitches[0];
717 pict.linesize[1] = vp->bmp->pitches[2];
718 pict.linesize[2] = vp->bmp->pitches[1];
720 for (i = 0; i < sp->sub.num_rects; i++)
721 blend_subrect(&pict, sp->sub.rects[i],
722 vp->bmp->w, vp->bmp->h);
724 SDL_UnlockYUVOverlay (vp->bmp);
730 /* XXX: we suppose the screen has a 1.0 pixel ratio */
732 width = ((int)rint(height * aspect_ratio)) & ~1;
733 if (width > is->width) {
735 height = ((int)rint(width / aspect_ratio)) & ~1;
737 x = (is->width - width) / 2;
738 y = (is->height - height) / 2;
739 if (!is->no_background) {
740 /* fill the background */
741 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
743 is->no_background = 0;
745 rect.x = is->xleft + x;
746 rect.y = is->ytop + y;
749 SDL_DisplayYUVOverlay(vp->bmp, &rect);
752 fill_rectangle(screen,
753 is->xleft, is->ytop, is->width, is->height,
754 QERGB(0x00, 0x00, 0x00));
759 static inline int compute_mod(int a, int b)
768 static void video_audio_display(VideoState *s)
770 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
771 int ch, channels, h, h2, bgcolor, fgcolor;
774 /* compute display index : center on currently output samples */
775 channels = s->audio_st->codec->channels;
776 nb_display_channels = channels;
779 delay = audio_write_get_buf_size(s);
782 /* to be more precise, we take into account the time spent since
783 the last buffer computation */
784 if (audio_callback_time) {
785 time_diff = av_gettime() - audio_callback_time;
786 delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
789 delay -= s->width / 2;
790 if (delay < s->width)
793 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
796 for(i=0; i<1000; i+=channels){
797 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
798 int a= s->sample_array[idx];
799 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
800 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
801 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
803 if(h<score && (b^c)<0){
809 s->last_i_start = i_start;
811 i_start = s->last_i_start;
814 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
815 fill_rectangle(screen,
816 s->xleft, s->ytop, s->width, s->height,
819 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
821 /* total height for one channel */
822 h = s->height / nb_display_channels;
823 /* graph height / 2 */
825 for(ch = 0;ch < nb_display_channels; ch++) {
827 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
828 for(x = 0; x < s->width; x++) {
829 y = (s->sample_array[i] * h2) >> 15;
836 fill_rectangle(screen,
837 s->xleft + x, ys, 1, y,
840 if (i >= SAMPLE_ARRAY_SIZE)
841 i -= SAMPLE_ARRAY_SIZE;
845 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
847 for(ch = 1;ch < nb_display_channels; ch++) {
848 y = s->ytop + ch * h;
849 fill_rectangle(screen,
850 s->xleft, y, s->width, 1,
853 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
856 static int video_open(VideoState *is){
857 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
860 if(is_full_screen) flags |= SDL_FULLSCREEN;
861 else flags |= SDL_RESIZABLE;
863 if (is_full_screen && fs_screen_width) {
865 h = fs_screen_height;
866 } else if(!is_full_screen && screen_width){
869 }else if (is->video_st && is->video_st->codec->width){
870 w = is->video_st->codec->width;
871 h = is->video_st->codec->height;
877 screen = SDL_SetVideoMode(w, h, 0, flags);
879 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
880 screen = SDL_SetVideoMode(w, h, 24, flags);
883 fprintf(stderr, "SDL: could not set video mode - exiting\n");
886 SDL_WM_SetCaption("FFplay", "FFplay");
888 is->width = screen->w;
889 is->height = screen->h;
894 /* display the current picture, if any */
895 static void video_display(VideoState *is)
898 video_open(cur_stream);
899 if (is->audio_st && is->show_audio)
900 video_audio_display(is);
901 else if (is->video_st)
902 video_image_display(is);
905 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
908 event.type = FF_REFRESH_EVENT;
909 event.user.data1 = opaque;
910 SDL_PushEvent(&event);
911 return 0; /* 0 means stop timer */
914 /* schedule a video refresh in 'delay' ms */
915 static void schedule_refresh(VideoState *is, int delay)
917 if(!delay) delay=1; //SDL seems to be buggy when the delay is 0
918 SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
921 /* get the current audio clock value */
922 static double get_audio_clock(VideoState *is)
925 int hw_buf_size, bytes_per_sec;
926 pts = is->audio_clock;
927 hw_buf_size = audio_write_get_buf_size(is);
930 bytes_per_sec = is->audio_st->codec->sample_rate *
931 2 * is->audio_st->codec->channels;
934 pts -= (double)hw_buf_size / bytes_per_sec;
938 /* get the current video clock value */
939 static double get_video_clock(VideoState *is)
942 return is->video_current_pts;
944 return is->video_current_pts + (av_gettime() - is->video_current_pts_time) / 1000000.0;
948 /* get the current external clock value */
949 static double get_external_clock(VideoState *is)
953 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
956 /* get the current master clock value */
957 static double get_master_clock(VideoState *is)
961 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
963 val = get_video_clock(is);
965 val = get_audio_clock(is);
966 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
968 val = get_audio_clock(is);
970 val = get_video_clock(is);
972 val = get_external_clock(is);
977 /* seek in the stream */
978 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
984 is->seek_flags |= AVSEEK_FLAG_BYTE;
989 /* pause or resume the video */
990 static void stream_pause(VideoState *is)
992 is->paused = !is->paused;
994 is->video_current_pts = get_video_clock(is);
995 is->frame_timer += (av_gettime() - is->video_current_pts_time) / 1000000.0;
999 static double compute_frame_delay(double frame_current_pts, VideoState *is)
1001 double actual_delay, delay, sync_threshold, ref_clock, diff;
1003 /* compute nominal delay */
1004 delay = frame_current_pts - is->frame_last_pts;
1005 if (delay <= 0 || delay >= 10.0) {
1006 /* if incorrect delay, use previous one */
1007 delay = is->frame_last_delay;
1009 is->frame_last_delay = delay;
1011 is->frame_last_pts = frame_current_pts;
1013 /* update delay to follow master synchronisation source */
1014 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1015 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1016 /* if video is slave, we try to correct big delays by
1017 duplicating or deleting a frame */
1018 ref_clock = get_master_clock(is);
1019 diff = frame_current_pts - ref_clock;
1021 /* skip or repeat frame. We take into account the
1022 delay to compute the threshold. I still don't know
1023 if it is the best guess */
1024 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1025 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1026 if (diff <= -sync_threshold)
1028 else if (diff >= sync_threshold)
1033 is->frame_timer += delay;
1034 /* compute the REAL delay (we need to do that to avoid
1036 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
1037 if (actual_delay < 0.010) {
1038 /* XXX: should skip picture */
1039 actual_delay = 0.010;
1042 #if defined(DEBUG_SYNC)
1043 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1044 delay, actual_delay, frame_current_pts, -diff);
1047 return actual_delay;
1050 /* called to display each frame */
1051 static void video_refresh_timer(void *opaque)
1053 VideoState *is = opaque;
1056 SubPicture *sp, *sp2;
1059 if (is->pictq_size == 0) {
1060 /* if no picture, need to wait */
1061 schedule_refresh(is, 1);
1063 /* dequeue the picture */
1064 vp = &is->pictq[is->pictq_rindex];
1066 /* update current video pts */
1067 is->video_current_pts = vp->pts;
1068 is->video_current_pts_time = av_gettime();
1070 /* launch timer for next picture */
1071 schedule_refresh(is, (int)(compute_frame_delay(vp->pts, is) * 1000 + 0.5));
1073 if(is->subtitle_st) {
1074 if (is->subtitle_stream_changed) {
1075 SDL_LockMutex(is->subpq_mutex);
1077 while (is->subpq_size) {
1078 free_subpicture(&is->subpq[is->subpq_rindex]);
1080 /* update queue size and signal for next picture */
1081 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1082 is->subpq_rindex = 0;
1086 is->subtitle_stream_changed = 0;
1088 SDL_CondSignal(is->subpq_cond);
1089 SDL_UnlockMutex(is->subpq_mutex);
1091 if (is->subpq_size > 0) {
1092 sp = &is->subpq[is->subpq_rindex];
1094 if (is->subpq_size > 1)
1095 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1099 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1100 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1102 free_subpicture(sp);
1104 /* update queue size and signal for next picture */
1105 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1106 is->subpq_rindex = 0;
1108 SDL_LockMutex(is->subpq_mutex);
1110 SDL_CondSignal(is->subpq_cond);
1111 SDL_UnlockMutex(is->subpq_mutex);
1117 /* display picture */
1120 /* update queue size and signal for next picture */
1121 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1122 is->pictq_rindex = 0;
1124 SDL_LockMutex(is->pictq_mutex);
1126 SDL_CondSignal(is->pictq_cond);
1127 SDL_UnlockMutex(is->pictq_mutex);
1129 } else if (is->audio_st) {
1130 /* draw the next audio frame */
1132 schedule_refresh(is, 40);
1134 /* if only audio stream, then display the audio bars (better
1135 than nothing, just to test the implementation */
1137 /* display picture */
1140 schedule_refresh(is, 100);
1143 static int64_t last_time;
1145 int aqsize, vqsize, sqsize;
1148 cur_time = av_gettime();
1149 if (!last_time || (cur_time - last_time) >= 30000) {
1154 aqsize = is->audioq.size;
1156 vqsize = is->videoq.size;
1157 if (is->subtitle_st)
1158 sqsize = is->subtitleq.size;
1160 if (is->audio_st && is->video_st)
1161 av_diff = get_audio_clock(is) - get_video_clock(is);
1162 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB f=%Ld/%Ld \r",
1163 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1165 last_time = cur_time;
1170 /* allocate a picture (needs to do that in main thread to avoid
1171 potential locking problems */
1172 static void alloc_picture(void *opaque)
1174 VideoState *is = opaque;
1177 vp = &is->pictq[is->pictq_windex];
1180 SDL_FreeYUVOverlay(vp->bmp);
1182 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1183 is->video_st->codec->height,
1186 vp->width = is->video_st->codec->width;
1187 vp->height = is->video_st->codec->height;
1189 SDL_LockMutex(is->pictq_mutex);
1191 SDL_CondSignal(is->pictq_cond);
1192 SDL_UnlockMutex(is->pictq_mutex);
1197 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1199 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
1204 /* wait until we have space to put a new picture */
1205 SDL_LockMutex(is->pictq_mutex);
1206 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1207 !is->videoq.abort_request) {
1208 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1210 SDL_UnlockMutex(is->pictq_mutex);
1212 if (is->videoq.abort_request)
1215 vp = &is->pictq[is->pictq_windex];
1217 /* alloc or resize hardware picture buffer */
1219 vp->width != is->video_st->codec->width ||
1220 vp->height != is->video_st->codec->height) {
1225 /* the allocation must be done in the main thread to avoid
1227 event.type = FF_ALLOC_EVENT;
1228 event.user.data1 = is;
1229 SDL_PushEvent(&event);
1231 /* wait until the picture is allocated */
1232 SDL_LockMutex(is->pictq_mutex);
1233 while (!vp->allocated && !is->videoq.abort_request) {
1234 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1236 SDL_UnlockMutex(is->pictq_mutex);
1238 if (is->videoq.abort_request)
1242 /* if the frame is not skipped, then display it */
1246 /* get a pointer on the bitmap */
1247 SDL_LockYUVOverlay (vp->bmp);
1249 dst_pix_fmt = PIX_FMT_YUV420P;
1250 memset(&pict,0,sizeof(AVPicture));
1251 pict.data[0] = vp->bmp->pixels[0];
1252 pict.data[1] = vp->bmp->pixels[2];
1253 pict.data[2] = vp->bmp->pixels[1];
1255 pict.linesize[0] = vp->bmp->pitches[0];
1256 pict.linesize[1] = vp->bmp->pitches[2];
1257 pict.linesize[2] = vp->bmp->pitches[1];
1258 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1259 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1260 is->video_st->codec->width, is->video_st->codec->height,
1261 is->video_st->codec->pix_fmt,
1262 is->video_st->codec->width, is->video_st->codec->height,
1263 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1264 if (is->img_convert_ctx == NULL) {
1265 fprintf(stderr, "Cannot initialize the conversion context\n");
1268 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1269 0, is->video_st->codec->height, pict.data, pict.linesize);
1270 /* update the bitmap content */
1271 SDL_UnlockYUVOverlay(vp->bmp);
1275 /* now we can update the picture count */
1276 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1277 is->pictq_windex = 0;
1278 SDL_LockMutex(is->pictq_mutex);
1280 SDL_UnlockMutex(is->pictq_mutex);
1286 * compute the exact PTS for the picture if it is omitted in the stream
1287 * @param pts1 the dts of the pkt / pts of the frame
1289 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
1291 double frame_delay, pts;
1296 /* update video clock with pts, if present */
1297 is->video_clock = pts;
1299 pts = is->video_clock;
1301 /* update video clock for next frame */
1302 frame_delay = av_q2d(is->video_st->codec->time_base);
1303 /* for MPEG2, the frame can be repeated, so we update the
1304 clock accordingly */
1305 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1306 is->video_clock += frame_delay;
1308 #if defined(DEBUG_SYNC) && 0
1311 if (src_frame->pict_type == FF_B_TYPE)
1313 else if (src_frame->pict_type == FF_I_TYPE)
1317 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1321 return queue_picture(is, src_frame, pts);
1324 static int video_thread(void *arg)
1326 VideoState *is = arg;
1327 AVPacket pkt1, *pkt = &pkt1;
1328 int len1, got_picture;
1329 AVFrame *frame= avcodec_alloc_frame();
1333 while (is->paused && !is->videoq.abort_request) {
1336 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1339 if(pkt->data == flush_pkt.data){
1340 avcodec_flush_buffers(is->video_st->codec);
1341 is->last_dts_for_fault_detection=
1342 is->last_pts_for_fault_detection= INT64_MIN;
1346 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1347 this packet, if any */
1348 is->video_st->codec->reordered_opaque= pkt->pts;
1349 len1 = avcodec_decode_video2(is->video_st->codec,
1350 frame, &got_picture,
1353 if(pkt->dts != AV_NOPTS_VALUE){
1354 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1355 is->last_dts_for_fault_detection= pkt->dts;
1357 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1358 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1359 is->last_pts_for_fault_detection= frame->reordered_opaque;
1362 if( ( decoder_reorder_pts==1
1363 || decoder_reorder_pts && is->faulty_pts<is->faulty_dts
1364 || pkt->dts == AV_NOPTS_VALUE)
1365 && frame->reordered_opaque != AV_NOPTS_VALUE)
1366 pts= frame->reordered_opaque;
1367 else if(pkt->dts != AV_NOPTS_VALUE)
1371 pts *= av_q2d(is->video_st->time_base);
1376 if (output_picture2(is, frame, pts) < 0)
1379 av_free_packet(pkt);
1382 stream_pause(cur_stream);
1389 static int subtitle_thread(void *arg)
1391 VideoState *is = arg;
1393 AVPacket pkt1, *pkt = &pkt1;
1394 int len1, got_subtitle;
1397 int r, g, b, y, u, v, a;
1400 while (is->paused && !is->subtitleq.abort_request) {
1403 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1406 if(pkt->data == flush_pkt.data){
1407 avcodec_flush_buffers(is->subtitle_st->codec);
1410 SDL_LockMutex(is->subpq_mutex);
1411 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1412 !is->subtitleq.abort_request) {
1413 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1415 SDL_UnlockMutex(is->subpq_mutex);
1417 if (is->subtitleq.abort_request)
1420 sp = &is->subpq[is->subpq_windex];
1422 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1423 this packet, if any */
1425 if (pkt->pts != AV_NOPTS_VALUE)
1426 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1428 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1429 &sp->sub, &got_subtitle,
1433 if (got_subtitle && sp->sub.format == 0) {
1436 for (i = 0; i < sp->sub.num_rects; i++)
1438 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1440 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1441 y = RGB_TO_Y_CCIR(r, g, b);
1442 u = RGB_TO_U_CCIR(r, g, b, 0);
1443 v = RGB_TO_V_CCIR(r, g, b, 0);
1444 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1448 /* now we can update the picture count */
1449 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1450 is->subpq_windex = 0;
1451 SDL_LockMutex(is->subpq_mutex);
1453 SDL_UnlockMutex(is->subpq_mutex);
1455 av_free_packet(pkt);
1458 // stream_pause(cur_stream);
1464 /* copy samples for viewing in editor window */
1465 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1467 int size, len, channels;
1469 channels = is->audio_st->codec->channels;
1471 size = samples_size / sizeof(short);
1473 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1476 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1478 is->sample_array_index += len;
1479 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1480 is->sample_array_index = 0;
1485 /* return the new audio buffer size (samples can be added or deleted
1486 to get better sync if video or external master clock) */
1487 static int synchronize_audio(VideoState *is, short *samples,
1488 int samples_size1, double pts)
1490 int n, samples_size;
1493 n = 2 * is->audio_st->codec->channels;
1494 samples_size = samples_size1;
1496 /* if not master, then we try to remove or add samples to correct the clock */
1497 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1498 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1499 double diff, avg_diff;
1500 int wanted_size, min_size, max_size, nb_samples;
1502 ref_clock = get_master_clock(is);
1503 diff = get_audio_clock(is) - ref_clock;
1505 if (diff < AV_NOSYNC_THRESHOLD) {
1506 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1507 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1508 /* not enough measures to have a correct estimate */
1509 is->audio_diff_avg_count++;
1511 /* estimate the A-V difference */
1512 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1514 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1515 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1516 nb_samples = samples_size / n;
1518 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1519 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1520 if (wanted_size < min_size)
1521 wanted_size = min_size;
1522 else if (wanted_size > max_size)
1523 wanted_size = max_size;
1525 /* add or remove samples to correction the synchro */
1526 if (wanted_size < samples_size) {
1527 /* remove samples */
1528 samples_size = wanted_size;
1529 } else if (wanted_size > samples_size) {
1530 uint8_t *samples_end, *q;
1534 nb = (samples_size - wanted_size);
1535 samples_end = (uint8_t *)samples + samples_size - n;
1536 q = samples_end + n;
1538 memcpy(q, samples_end, n);
1542 samples_size = wanted_size;
1546 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1547 diff, avg_diff, samples_size - samples_size1,
1548 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1552 /* too big difference : may be initial PTS errors, so
1554 is->audio_diff_avg_count = 0;
1555 is->audio_diff_cum = 0;
1559 return samples_size;
1562 /* decode one audio frame and returns its uncompressed size */
1563 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1565 AVPacket *pkt_temp = &is->audio_pkt_temp;
1566 AVPacket *pkt = &is->audio_pkt;
1567 AVCodecContext *dec= is->audio_st->codec;
1568 int n, len1, data_size;
1572 /* NOTE: the audio packet can contain several frames */
1573 while (pkt_temp->size > 0) {
1574 data_size = sizeof(is->audio_buf1);
1575 len1 = avcodec_decode_audio3(dec,
1576 (int16_t *)is->audio_buf1, &data_size,
1579 /* if error, we skip the frame */
1584 pkt_temp->data += len1;
1585 pkt_temp->size -= len1;
1589 if (dec->sample_fmt != is->audio_src_fmt) {
1590 if (is->reformat_ctx)
1591 av_audio_convert_free(is->reformat_ctx);
1592 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
1593 dec->sample_fmt, 1, NULL, 0);
1594 if (!is->reformat_ctx) {
1595 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
1596 avcodec_get_sample_fmt_name(dec->sample_fmt),
1597 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
1600 is->audio_src_fmt= dec->sample_fmt;
1603 if (is->reformat_ctx) {
1604 const void *ibuf[6]= {is->audio_buf1};
1605 void *obuf[6]= {is->audio_buf2};
1606 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
1607 int ostride[6]= {2};
1608 int len= data_size/istride[0];
1609 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
1610 printf("av_audio_convert() failed\n");
1613 is->audio_buf= is->audio_buf2;
1614 /* FIXME: existing code assume that data_size equals framesize*channels*2
1615 remove this legacy cruft */
1618 is->audio_buf= is->audio_buf1;
1621 /* if no pts, then compute it */
1622 pts = is->audio_clock;
1624 n = 2 * dec->channels;
1625 is->audio_clock += (double)data_size /
1626 (double)(n * dec->sample_rate);
1627 #if defined(DEBUG_SYNC)
1629 static double last_clock;
1630 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1631 is->audio_clock - last_clock,
1632 is->audio_clock, pts);
1633 last_clock = is->audio_clock;
1639 /* free the current packet */
1641 av_free_packet(pkt);
1643 if (is->paused || is->audioq.abort_request) {
1647 /* read next packet */
1648 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1650 if(pkt->data == flush_pkt.data){
1651 avcodec_flush_buffers(dec);
1655 pkt_temp->data = pkt->data;
1656 pkt_temp->size = pkt->size;
1658 /* if update the audio clock with the pts */
1659 if (pkt->pts != AV_NOPTS_VALUE) {
1660 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1665 /* get the current audio output buffer size, in samples. With SDL, we
1666 cannot have a precise information */
1667 static int audio_write_get_buf_size(VideoState *is)
1669 return is->audio_buf_size - is->audio_buf_index;
1673 /* prepare a new audio buffer */
1674 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1676 VideoState *is = opaque;
1677 int audio_size, len1;
1680 audio_callback_time = av_gettime();
1683 if (is->audio_buf_index >= is->audio_buf_size) {
1684 audio_size = audio_decode_frame(is, &pts);
1685 if (audio_size < 0) {
1686 /* if error, just output silence */
1687 is->audio_buf = is->audio_buf1;
1688 is->audio_buf_size = 1024;
1689 memset(is->audio_buf, 0, is->audio_buf_size);
1692 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1693 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1695 is->audio_buf_size = audio_size;
1697 is->audio_buf_index = 0;
1699 len1 = is->audio_buf_size - is->audio_buf_index;
1702 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1705 is->audio_buf_index += len1;
1709 /* open a given stream. Return 0 if OK */
1710 static int stream_component_open(VideoState *is, int stream_index)
1712 AVFormatContext *ic = is->ic;
1713 AVCodecContext *enc;
1715 SDL_AudioSpec wanted_spec, spec;
1717 if (stream_index < 0 || stream_index >= ic->nb_streams)
1719 enc = ic->streams[stream_index]->codec;
1721 /* prepare audio output */
1722 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1723 if (enc->channels > 0) {
1724 enc->request_channels = FFMIN(2, enc->channels);
1726 enc->request_channels = 2;
1730 codec = avcodec_find_decoder(enc->codec_id);
1731 enc->debug_mv = debug_mv;
1733 enc->workaround_bugs = workaround_bugs;
1734 enc->lowres = lowres;
1735 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1736 enc->idct_algo= idct;
1737 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1738 enc->skip_frame= skip_frame;
1739 enc->skip_idct= skip_idct;
1740 enc->skip_loop_filter= skip_loop_filter;
1741 enc->error_recognition= error_recognition;
1742 enc->error_concealment= error_concealment;
1743 avcodec_thread_init(enc, thread_count);
1745 set_context_opts(enc, avcodec_opts[enc->codec_type], 0);
1748 avcodec_open(enc, codec) < 0)
1751 /* prepare audio output */
1752 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1753 wanted_spec.freq = enc->sample_rate;
1754 wanted_spec.format = AUDIO_S16SYS;
1755 wanted_spec.channels = enc->channels;
1756 wanted_spec.silence = 0;
1757 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1758 wanted_spec.callback = sdl_audio_callback;
1759 wanted_spec.userdata = is;
1760 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1761 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1764 is->audio_hw_buf_size = spec.size;
1765 is->audio_src_fmt= SAMPLE_FMT_S16;
1768 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
1769 switch(enc->codec_type) {
1770 case CODEC_TYPE_AUDIO:
1771 is->audio_stream = stream_index;
1772 is->audio_st = ic->streams[stream_index];
1773 is->audio_buf_size = 0;
1774 is->audio_buf_index = 0;
1776 /* init averaging filter */
1777 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1778 is->audio_diff_avg_count = 0;
1779 /* since we do not have a precise anough audio fifo fullness,
1780 we correct audio sync only if larger than this threshold */
1781 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1783 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1784 packet_queue_init(&is->audioq);
1787 case CODEC_TYPE_VIDEO:
1788 is->video_stream = stream_index;
1789 is->video_st = ic->streams[stream_index];
1791 is->frame_last_delay = 40e-3;
1792 is->frame_timer = (double)av_gettime() / 1000000.0;
1793 is->video_current_pts_time = av_gettime();
1795 packet_queue_init(&is->videoq);
1796 is->video_tid = SDL_CreateThread(video_thread, is);
1798 case CODEC_TYPE_SUBTITLE:
1799 is->subtitle_stream = stream_index;
1800 is->subtitle_st = ic->streams[stream_index];
1801 packet_queue_init(&is->subtitleq);
1803 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1811 static void stream_component_close(VideoState *is, int stream_index)
1813 AVFormatContext *ic = is->ic;
1814 AVCodecContext *enc;
1816 if (stream_index < 0 || stream_index >= ic->nb_streams)
1818 enc = ic->streams[stream_index]->codec;
1820 switch(enc->codec_type) {
1821 case CODEC_TYPE_AUDIO:
1822 packet_queue_abort(&is->audioq);
1826 packet_queue_end(&is->audioq);
1827 if (is->reformat_ctx)
1828 av_audio_convert_free(is->reformat_ctx);
1830 case CODEC_TYPE_VIDEO:
1831 packet_queue_abort(&is->videoq);
1833 /* note: we also signal this mutex to make sure we deblock the
1834 video thread in all cases */
1835 SDL_LockMutex(is->pictq_mutex);
1836 SDL_CondSignal(is->pictq_cond);
1837 SDL_UnlockMutex(is->pictq_mutex);
1839 SDL_WaitThread(is->video_tid, NULL);
1841 packet_queue_end(&is->videoq);
1843 case CODEC_TYPE_SUBTITLE:
1844 packet_queue_abort(&is->subtitleq);
1846 /* note: we also signal this mutex to make sure we deblock the
1847 video thread in all cases */
1848 SDL_LockMutex(is->subpq_mutex);
1849 is->subtitle_stream_changed = 1;
1851 SDL_CondSignal(is->subpq_cond);
1852 SDL_UnlockMutex(is->subpq_mutex);
1854 SDL_WaitThread(is->subtitle_tid, NULL);
1856 packet_queue_end(&is->subtitleq);
1862 ic->streams[stream_index]->discard = AVDISCARD_ALL;
1864 switch(enc->codec_type) {
1865 case CODEC_TYPE_AUDIO:
1866 is->audio_st = NULL;
1867 is->audio_stream = -1;
1869 case CODEC_TYPE_VIDEO:
1870 is->video_st = NULL;
1871 is->video_stream = -1;
1873 case CODEC_TYPE_SUBTITLE:
1874 is->subtitle_st = NULL;
1875 is->subtitle_stream = -1;
1882 /* since we have only one decoding thread, we can use a global
1883 variable instead of a thread local variable */
1884 static VideoState *global_video_state;
1886 static int decode_interrupt_cb(void)
1888 return (global_video_state && global_video_state->abort_request);
1891 /* this thread gets the stream from the disk or the network */
1892 static int decode_thread(void *arg)
1894 VideoState *is = arg;
1895 AVFormatContext *ic;
1896 int err, i, ret, video_index, audio_index, subtitle_index;
1897 AVPacket pkt1, *pkt = &pkt1;
1898 AVFormatParameters params, *ap = ¶ms;
1901 ic = avformat_alloc_context();
1905 subtitle_index = -1;
1906 is->video_stream = -1;
1907 is->audio_stream = -1;
1908 is->subtitle_stream = -1;
1910 global_video_state = is;
1911 url_set_interrupt_cb(decode_interrupt_cb);
1913 memset(ap, 0, sizeof(*ap));
1915 ap->prealloced_context = 1;
1916 ap->width = frame_width;
1917 ap->height= frame_height;
1918 ap->time_base= (AVRational){1, 25};
1919 ap->pix_fmt = frame_pix_fmt;
1921 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
1923 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1925 print_error(is->filename, err);
1932 ic->flags |= AVFMT_FLAG_GENPTS;
1934 err = av_find_stream_info(ic);
1936 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1941 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
1943 /* if seeking requested, we execute it */
1944 if (start_time != AV_NOPTS_VALUE) {
1947 timestamp = start_time;
1948 /* add the stream start time */
1949 if (ic->start_time != AV_NOPTS_VALUE)
1950 timestamp += ic->start_time;
1951 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
1953 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1954 is->filename, (double)timestamp / AV_TIME_BASE);
1958 for(i = 0; i < ic->nb_streams; i++) {
1959 AVCodecContext *enc = ic->streams[i]->codec;
1960 ic->streams[i]->discard = AVDISCARD_ALL;
1961 switch(enc->codec_type) {
1962 case CODEC_TYPE_AUDIO:
1963 if (wanted_audio_stream-- >= 0 && !audio_disable)
1966 case CODEC_TYPE_VIDEO:
1967 if (wanted_video_stream-- >= 0 && !video_disable)
1970 case CODEC_TYPE_SUBTITLE:
1971 if (wanted_subtitle_stream-- >= 0 && !video_disable)
1979 dump_format(ic, 0, is->filename, 0);
1982 /* open the streams */
1983 if (audio_index >= 0) {
1984 stream_component_open(is, audio_index);
1987 if (video_index >= 0) {
1988 stream_component_open(is, video_index);
1990 if (!display_disable)
1994 if (subtitle_index >= 0) {
1995 stream_component_open(is, subtitle_index);
1998 if (is->video_stream < 0 && is->audio_stream < 0) {
1999 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2005 if (is->abort_request)
2007 if (is->paused != is->last_paused) {
2008 is->last_paused = is->paused;
2014 #if CONFIG_RTSP_DEMUXER
2015 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2016 /* wait 10 ms to avoid trying to get another packet */
2023 int64_t seek_target= is->seek_pos;
2024 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2025 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2026 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2027 // of the seek_pos/seek_rel variables
2029 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2031 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2033 if (is->audio_stream >= 0) {
2034 packet_queue_flush(&is->audioq);
2035 packet_queue_put(&is->audioq, &flush_pkt);
2037 if (is->subtitle_stream >= 0) {
2038 packet_queue_flush(&is->subtitleq);
2039 packet_queue_put(&is->subtitleq, &flush_pkt);
2041 if (is->video_stream >= 0) {
2042 packet_queue_flush(&is->videoq);
2043 packet_queue_put(&is->videoq, &flush_pkt);
2050 /* if the queue are full, no need to read more */
2051 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2052 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2053 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2054 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2059 if(url_feof(ic->pb) || eof) {
2060 if(is->video_stream >= 0){
2061 av_init_packet(pkt);
2064 pkt->stream_index= is->video_stream;
2065 packet_queue_put(&is->videoq, pkt);
2070 ret = av_read_frame(ic, pkt);
2072 if (ret == AVERROR_EOF)
2074 if (url_ferror(ic->pb))
2076 SDL_Delay(100); /* wait for user event */
2079 if (pkt->stream_index == is->audio_stream) {
2080 packet_queue_put(&is->audioq, pkt);
2081 } else if (pkt->stream_index == is->video_stream) {
2082 packet_queue_put(&is->videoq, pkt);
2083 } else if (pkt->stream_index == is->subtitle_stream) {
2084 packet_queue_put(&is->subtitleq, pkt);
2086 av_free_packet(pkt);
2089 /* wait until the end */
2090 while (!is->abort_request) {
2096 /* disable interrupting */
2097 global_video_state = NULL;
2099 /* close each stream */
2100 if (is->audio_stream >= 0)
2101 stream_component_close(is, is->audio_stream);
2102 if (is->video_stream >= 0)
2103 stream_component_close(is, is->video_stream);
2104 if (is->subtitle_stream >= 0)
2105 stream_component_close(is, is->subtitle_stream);
2107 av_close_input_file(is->ic);
2108 is->ic = NULL; /* safety */
2110 url_set_interrupt_cb(NULL);
2115 event.type = FF_QUIT_EVENT;
2116 event.user.data1 = is;
2117 SDL_PushEvent(&event);
2122 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2126 is = av_mallocz(sizeof(VideoState));
2129 av_strlcpy(is->filename, filename, sizeof(is->filename));
2130 is->iformat = iformat;
2134 /* start video display */
2135 is->pictq_mutex = SDL_CreateMutex();
2136 is->pictq_cond = SDL_CreateCond();
2138 is->subpq_mutex = SDL_CreateMutex();
2139 is->subpq_cond = SDL_CreateCond();
2141 /* add the refresh timer to draw the picture */
2142 schedule_refresh(is, 40);
2144 is->av_sync_type = av_sync_type;
2145 is->parse_tid = SDL_CreateThread(decode_thread, is);
2146 if (!is->parse_tid) {
2153 static void stream_close(VideoState *is)
2157 /* XXX: use a special url_shutdown call to abort parse cleanly */
2158 is->abort_request = 1;
2159 SDL_WaitThread(is->parse_tid, NULL);
2161 /* free all pictures */
2162 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2165 SDL_FreeYUVOverlay(vp->bmp);
2169 SDL_DestroyMutex(is->pictq_mutex);
2170 SDL_DestroyCond(is->pictq_cond);
2171 SDL_DestroyMutex(is->subpq_mutex);
2172 SDL_DestroyCond(is->subpq_cond);
2173 if (is->img_convert_ctx)
2174 sws_freeContext(is->img_convert_ctx);
2178 static void stream_cycle_channel(VideoState *is, int codec_type)
2180 AVFormatContext *ic = is->ic;
2181 int start_index, stream_index;
2184 if (codec_type == CODEC_TYPE_VIDEO)
2185 start_index = is->video_stream;
2186 else if (codec_type == CODEC_TYPE_AUDIO)
2187 start_index = is->audio_stream;
2189 start_index = is->subtitle_stream;
2190 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2192 stream_index = start_index;
2194 if (++stream_index >= is->ic->nb_streams)
2196 if (codec_type == CODEC_TYPE_SUBTITLE)
2203 if (stream_index == start_index)
2205 st = ic->streams[stream_index];
2206 if (st->codec->codec_type == codec_type) {
2207 /* check that parameters are OK */
2208 switch(codec_type) {
2209 case CODEC_TYPE_AUDIO:
2210 if (st->codec->sample_rate != 0 &&
2211 st->codec->channels != 0)
2214 case CODEC_TYPE_VIDEO:
2215 case CODEC_TYPE_SUBTITLE:
2223 stream_component_close(is, start_index);
2224 stream_component_open(is, stream_index);
2228 static void toggle_full_screen(void)
2230 is_full_screen = !is_full_screen;
2231 if (!fs_screen_width) {
2232 /* use default SDL method */
2233 // SDL_WM_ToggleFullScreen(screen);
2235 video_open(cur_stream);
2238 static void toggle_pause(void)
2241 stream_pause(cur_stream);
2245 static void step_to_next_frame(void)
2248 /* if the stream is paused unpause it, then step */
2249 if (cur_stream->paused)
2250 stream_pause(cur_stream);
2255 static void do_exit(void)
2259 stream_close(cur_stream);
2262 for (i = 0; i < CODEC_TYPE_NB; i++)
2263 av_free(avcodec_opts[i]);
2264 av_free(avformat_opts);
2272 static void toggle_audio_display(void)
2275 cur_stream->show_audio = !cur_stream->show_audio;
2279 /* handle an event sent by the GUI */
2280 static void event_loop(void)
2283 double incr, pos, frac;
2286 SDL_WaitEvent(&event);
2287 switch(event.type) {
2289 switch(event.key.keysym.sym) {
2295 toggle_full_screen();
2301 case SDLK_s: //S: Step to next frame
2302 step_to_next_frame();
2306 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2310 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2314 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2317 toggle_audio_display();
2332 if (seek_by_bytes) {
2333 pos = url_ftell(cur_stream->ic->pb);
2334 if (cur_stream->ic->bit_rate)
2335 incr *= cur_stream->ic->bit_rate / 60.0;
2339 stream_seek(cur_stream, pos, incr, 1);
2341 pos = get_master_clock(cur_stream);
2343 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2351 case SDL_MOUSEBUTTONDOWN:
2353 if(seek_by_bytes || cur_stream->ic->duration<=0){
2354 uint64_t size= url_fsize(cur_stream->ic->pb);
2355 stream_seek(cur_stream, size*(double)event.button.x/(double)cur_stream->width, 0, 1);
2359 int tns, thh, tmm, tss;
2360 tns = cur_stream->ic->duration/1000000LL;
2362 tmm = (tns%3600)/60;
2364 frac = (double)event.button.x/(double)cur_stream->width;
2369 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2370 hh, mm, ss, thh, tmm, tss);
2371 ts = frac*cur_stream->ic->duration;
2372 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2373 ts += cur_stream->ic->start_time;
2374 stream_seek(cur_stream, ts, 0, 0);
2378 case SDL_VIDEORESIZE:
2380 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2381 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2382 screen_width = cur_stream->width = event.resize.w;
2383 screen_height= cur_stream->height= event.resize.h;
2390 case FF_ALLOC_EVENT:
2391 video_open(event.user.data1);
2392 alloc_picture(event.user.data1);
2394 case FF_REFRESH_EVENT:
2395 video_refresh_timer(event.user.data1);
2403 static void opt_frame_size(const char *arg)
2405 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2406 fprintf(stderr, "Incorrect frame size\n");
2409 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2410 fprintf(stderr, "Frame size must be a multiple of 2\n");
2415 static int opt_width(const char *opt, const char *arg)
2417 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2421 static int opt_height(const char *opt, const char *arg)
2423 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2427 static void opt_format(const char *arg)
2429 file_iformat = av_find_input_format(arg);
2430 if (!file_iformat) {
2431 fprintf(stderr, "Unknown input format: %s\n", arg);
2436 static void opt_frame_pix_fmt(const char *arg)
2438 frame_pix_fmt = av_get_pix_fmt(arg);
2441 static int opt_sync(const char *opt, const char *arg)
2443 if (!strcmp(arg, "audio"))
2444 av_sync_type = AV_SYNC_AUDIO_MASTER;
2445 else if (!strcmp(arg, "video"))
2446 av_sync_type = AV_SYNC_VIDEO_MASTER;
2447 else if (!strcmp(arg, "ext"))
2448 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2450 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2456 static int opt_seek(const char *opt, const char *arg)
2458 start_time = parse_time_or_die(opt, arg, 1);
2462 static int opt_debug(const char *opt, const char *arg)
2464 av_log_set_level(99);
2465 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2469 static int opt_vismv(const char *opt, const char *arg)
2471 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2475 static int opt_thread_count(const char *opt, const char *arg)
2477 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2479 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2484 static const OptionDef options[] = {
2485 #include "cmdutils_common_opts.h"
2486 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2487 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2488 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2489 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2490 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2491 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2492 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "select desired audio stream", "stream_number" },
2493 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "select desired video stream", "stream_number" },
2494 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_subtitle_stream}, "select desired subtitle stream", "stream_number" },
2495 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2496 { "bytes", OPT_BOOL, {(void*)&seek_by_bytes}, "seek by bytes" },
2497 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2498 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2499 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2500 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2501 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2502 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2503 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2504 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2505 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2506 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2507 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2508 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2509 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2510 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2511 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2512 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2513 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2514 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2515 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2516 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2520 static void show_usage(void)
2522 printf("Simple media player\n");
2523 printf("usage: ffplay [options] input_file\n");
2527 static void show_help(void)
2530 show_help_options(options, "Main options:\n",
2532 show_help_options(options, "\nAdvanced options:\n",
2533 OPT_EXPERT, OPT_EXPERT);
2534 printf("\nWhile playing:\n"
2536 "f toggle full screen\n"
2538 "a cycle audio channel\n"
2539 "v cycle video channel\n"
2540 "t cycle subtitle channel\n"
2541 "w show audio waves\n"
2542 "left/right seek backward/forward 10 seconds\n"
2543 "down/up seek backward/forward 1 minute\n"
2544 "mouse click seek to percentage in file corresponding to fraction of width\n"
2548 static void opt_input_file(const char *filename)
2550 if (!strcmp(filename, "-"))
2552 input_filename = filename;
2555 /* Called from the main */
2556 int main(int argc, char **argv)
2560 /* register all codecs, demux and protocols */
2561 avcodec_register_all();
2562 avdevice_register_all();
2565 for(i=0; i<CODEC_TYPE_NB; i++){
2566 avcodec_opts[i]= avcodec_alloc_context2(i);
2568 avformat_opts = avformat_alloc_context();
2569 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
2573 parse_options(argc, argv, options, opt_input_file);
2575 if (!input_filename) {
2577 fprintf(stderr, "An input file must be specified\n");
2578 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
2582 if (display_disable) {
2585 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2586 #if !defined(__MINGW32__) && !defined(__APPLE__)
2587 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
2589 if (SDL_Init (flags)) {
2590 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2594 if (!display_disable) {
2595 #if HAVE_SDL_VIDEO_SIZE
2596 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2597 fs_screen_width = vi->current_w;
2598 fs_screen_height = vi->current_h;
2602 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2603 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2604 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2605 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2607 av_init_packet(&flush_pkt);
2608 flush_pkt.data= "FLUSH";
2610 cur_stream = stream_open(input_filename, file_iformat);