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
90 int64_t pos; ///<byte position in file
92 int width, height; /* source height & width */
97 typedef struct SubPicture {
98 double pts; /* presentation time stamp for this picture */
103 AV_SYNC_AUDIO_MASTER, /* default choice */
104 AV_SYNC_VIDEO_MASTER,
105 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
108 typedef struct VideoState {
109 SDL_Thread *parse_tid;
110 SDL_Thread *video_tid;
111 AVInputFormat *iformat;
120 int read_pause_return;
122 int dtg_active_format;
127 double external_clock; /* external clock base */
128 int64_t external_clock_time;
131 double audio_diff_cum; /* used for AV difference average computation */
132 double audio_diff_avg_coef;
133 double audio_diff_threshold;
134 int audio_diff_avg_count;
137 int audio_hw_buf_size;
138 /* samples output by the codec. we reserve more space for avsync
140 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
141 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
143 unsigned int audio_buf_size; /* in bytes */
144 int audio_buf_index; /* in bytes */
145 AVPacket audio_pkt_temp;
147 enum SampleFormat audio_src_fmt;
148 AVAudioConvert *reformat_ctx;
150 int show_audio; /* if true, display audio samples */
151 int16_t sample_array[SAMPLE_ARRAY_SIZE];
152 int sample_array_index;
155 SDL_Thread *subtitle_tid;
157 int subtitle_stream_changed;
158 AVStream *subtitle_st;
159 PacketQueue subtitleq;
160 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
161 int subpq_size, subpq_rindex, subpq_windex;
162 SDL_mutex *subpq_mutex;
163 SDL_cond *subpq_cond;
166 double frame_last_pts;
167 double frame_last_delay;
168 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
172 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
173 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
174 int64_t video_current_pos; ///<current displayed file pos
175 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
176 int pictq_size, pictq_rindex, pictq_windex;
177 SDL_mutex *pictq_mutex;
178 SDL_cond *pictq_cond;
179 struct SwsContext *img_convert_ctx;
181 // QETimer *video_timer;
183 int width, height, xleft, ytop;
187 int64_t last_dts_for_fault_detection;
188 int64_t last_pts_for_fault_detection;
192 static void show_help(void);
193 static int audio_write_get_buf_size(VideoState *is);
195 /* options specified by the user */
196 static AVInputFormat *file_iformat;
197 static const char *input_filename;
198 static int fs_screen_width;
199 static int fs_screen_height;
200 static int screen_width = 0;
201 static int screen_height = 0;
202 static int frame_width = 0;
203 static int frame_height = 0;
204 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
205 static int audio_disable;
206 static int video_disable;
207 static int wanted_audio_stream= 0;
208 static int wanted_video_stream= 0;
209 static int wanted_subtitle_stream= -1;
210 static int seek_by_bytes=-1;
211 static int display_disable;
212 static int show_status = 1;
213 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
214 static int64_t start_time = AV_NOPTS_VALUE;
215 static int debug = 0;
216 static int debug_mv = 0;
218 static int thread_count = 1;
219 static int workaround_bugs = 1;
221 static int genpts = 0;
222 static int lowres = 0;
223 static int idct = FF_IDCT_AUTO;
224 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
225 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
226 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
227 static int error_recognition = FF_ER_CAREFUL;
228 static int error_concealment = 3;
229 static int decoder_reorder_pts= -1;
231 /* current context */
232 static int is_full_screen;
233 static VideoState *cur_stream;
234 static int64_t audio_callback_time;
236 static AVPacket flush_pkt;
238 #define FF_ALLOC_EVENT (SDL_USEREVENT)
239 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
240 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
242 static SDL_Surface *screen;
244 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
246 /* packet queue handling */
247 static void packet_queue_init(PacketQueue *q)
249 memset(q, 0, sizeof(PacketQueue));
250 q->mutex = SDL_CreateMutex();
251 q->cond = SDL_CreateCond();
252 packet_queue_put(q, &flush_pkt);
255 static void packet_queue_flush(PacketQueue *q)
257 AVPacketList *pkt, *pkt1;
259 SDL_LockMutex(q->mutex);
260 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
262 av_free_packet(&pkt->pkt);
269 SDL_UnlockMutex(q->mutex);
272 static void packet_queue_end(PacketQueue *q)
274 packet_queue_flush(q);
275 SDL_DestroyMutex(q->mutex);
276 SDL_DestroyCond(q->cond);
279 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
283 /* duplicate the packet */
284 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
287 pkt1 = av_malloc(sizeof(AVPacketList));
294 SDL_LockMutex(q->mutex);
300 q->last_pkt->next = pkt1;
303 q->size += pkt1->pkt.size + sizeof(*pkt1);
304 /* XXX: should duplicate packet data in DV case */
305 SDL_CondSignal(q->cond);
307 SDL_UnlockMutex(q->mutex);
311 static void packet_queue_abort(PacketQueue *q)
313 SDL_LockMutex(q->mutex);
315 q->abort_request = 1;
317 SDL_CondSignal(q->cond);
319 SDL_UnlockMutex(q->mutex);
322 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
323 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
328 SDL_LockMutex(q->mutex);
331 if (q->abort_request) {
338 q->first_pkt = pkt1->next;
342 q->size -= pkt1->pkt.size + sizeof(*pkt1);
351 SDL_CondWait(q->cond, q->mutex);
354 SDL_UnlockMutex(q->mutex);
358 static inline void fill_rectangle(SDL_Surface *screen,
359 int x, int y, int w, int h, int color)
366 SDL_FillRect(screen, &rect, color);
370 /* draw only the border of a rectangle */
371 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
375 /* fill the background */
379 w2 = s->width - (x + w);
385 h2 = s->height - (y + h);
388 fill_rectangle(screen,
392 fill_rectangle(screen,
393 s->xleft + s->width - w2, s->ytop,
396 fill_rectangle(screen,
397 s->xleft + w1, s->ytop,
398 s->width - w1 - w2, h1,
400 fill_rectangle(screen,
401 s->xleft + w1, s->ytop + s->height - h2,
402 s->width - w1 - w2, h2,
407 #define ALPHA_BLEND(a, oldp, newp, s)\
408 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
410 #define RGBA_IN(r, g, b, a, s)\
412 unsigned int v = ((const uint32_t *)(s))[0];\
413 a = (v >> 24) & 0xff;\
414 r = (v >> 16) & 0xff;\
415 g = (v >> 8) & 0xff;\
419 #define YUVA_IN(y, u, v, a, s, pal)\
421 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
422 a = (val >> 24) & 0xff;\
423 y = (val >> 16) & 0xff;\
424 u = (val >> 8) & 0xff;\
428 #define YUVA_OUT(d, y, u, v, a)\
430 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
436 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
438 int wrap, wrap3, width2, skip2;
439 int y, u, v, a, u1, v1, a1, w, h;
440 uint8_t *lum, *cb, *cr;
443 int dstx, dsty, dstw, dsth;
445 dstw = av_clip(rect->w, 0, imgw);
446 dsth = av_clip(rect->h, 0, imgh);
447 dstx = av_clip(rect->x, 0, imgw - dstw);
448 dsty = av_clip(rect->y, 0, imgh - dsth);
449 lum = dst->data[0] + dsty * dst->linesize[0];
450 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
451 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
453 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
455 wrap = dst->linesize[0];
456 wrap3 = rect->pict.linesize[0];
457 p = rect->pict.data[0];
458 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
466 YUVA_IN(y, u, v, a, p, pal);
467 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
468 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
469 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
475 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
476 YUVA_IN(y, u, v, a, p, pal);
480 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
482 YUVA_IN(y, u, v, a, p + BPP, pal);
486 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
487 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
488 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
495 YUVA_IN(y, u, v, a, p, pal);
496 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
497 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
498 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
502 p += wrap3 - dstw * BPP;
503 lum += wrap - dstw - dstx;
504 cb += dst->linesize[1] - width2 - skip2;
505 cr += dst->linesize[2] - width2 - skip2;
507 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
513 YUVA_IN(y, u, v, a, p, pal);
517 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
520 YUVA_IN(y, u, v, a, p, pal);
524 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
525 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
526 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
532 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
533 YUVA_IN(y, u, v, a, p, pal);
537 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
539 YUVA_IN(y, u, v, a, p + BPP, pal);
543 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
547 YUVA_IN(y, u, v, a, p, pal);
551 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
553 YUVA_IN(y, u, v, a, p + BPP, pal);
557 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
559 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
560 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
564 p += -wrap3 + 2 * BPP;
568 YUVA_IN(y, u, v, a, p, pal);
572 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
575 YUVA_IN(y, u, v, a, p, pal);
579 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
580 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
581 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
587 p += wrap3 + (wrap3 - dstw * BPP);
588 lum += wrap + (wrap - dstw - dstx);
589 cb += dst->linesize[1] - width2 - skip2;
590 cr += dst->linesize[2] - width2 - skip2;
592 /* handle odd height */
599 YUVA_IN(y, u, v, a, p, pal);
600 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
601 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
602 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
608 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
609 YUVA_IN(y, u, v, a, p, pal);
613 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
615 YUVA_IN(y, u, v, a, p + BPP, pal);
619 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
620 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
621 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
628 YUVA_IN(y, u, v, a, p, pal);
629 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
630 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
631 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
636 static void free_subpicture(SubPicture *sp)
640 for (i = 0; i < sp->sub.num_rects; i++)
642 av_freep(&sp->sub.rects[i]->pict.data[0]);
643 av_freep(&sp->sub.rects[i]->pict.data[1]);
644 av_freep(&sp->sub.rects[i]);
647 av_free(sp->sub.rects);
649 memset(&sp->sub, 0, sizeof(AVSubtitle));
652 static void video_image_display(VideoState *is)
658 int width, height, x, y;
662 vp = &is->pictq[is->pictq_rindex];
664 /* XXX: use variable in the frame */
665 if (is->video_st->sample_aspect_ratio.num)
666 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
667 else if (is->video_st->codec->sample_aspect_ratio.num)
668 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
671 if (aspect_ratio <= 0.0)
673 aspect_ratio *= (float)is->video_st->codec->width / is->video_st->codec->height;
674 /* if an active format is indicated, then it overrides the
677 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
678 is->dtg_active_format = is->video_st->codec->dtg_active_format;
679 printf("dtg_active_format=%d\n", is->dtg_active_format);
683 switch(is->video_st->codec->dtg_active_format) {
684 case FF_DTG_AFD_SAME:
689 aspect_ratio = 4.0 / 3.0;
691 case FF_DTG_AFD_16_9:
692 aspect_ratio = 16.0 / 9.0;
694 case FF_DTG_AFD_14_9:
695 aspect_ratio = 14.0 / 9.0;
697 case FF_DTG_AFD_4_3_SP_14_9:
698 aspect_ratio = 14.0 / 9.0;
700 case FF_DTG_AFD_16_9_SP_14_9:
701 aspect_ratio = 14.0 / 9.0;
703 case FF_DTG_AFD_SP_4_3:
704 aspect_ratio = 4.0 / 3.0;
711 if (is->subpq_size > 0)
713 sp = &is->subpq[is->subpq_rindex];
715 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
717 SDL_LockYUVOverlay (vp->bmp);
719 pict.data[0] = vp->bmp->pixels[0];
720 pict.data[1] = vp->bmp->pixels[2];
721 pict.data[2] = vp->bmp->pixels[1];
723 pict.linesize[0] = vp->bmp->pitches[0];
724 pict.linesize[1] = vp->bmp->pitches[2];
725 pict.linesize[2] = vp->bmp->pitches[1];
727 for (i = 0; i < sp->sub.num_rects; i++)
728 blend_subrect(&pict, sp->sub.rects[i],
729 vp->bmp->w, vp->bmp->h);
731 SDL_UnlockYUVOverlay (vp->bmp);
737 /* XXX: we suppose the screen has a 1.0 pixel ratio */
739 width = ((int)rint(height * aspect_ratio)) & ~1;
740 if (width > is->width) {
742 height = ((int)rint(width / aspect_ratio)) & ~1;
744 x = (is->width - width) / 2;
745 y = (is->height - height) / 2;
746 if (!is->no_background) {
747 /* fill the background */
748 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
750 is->no_background = 0;
752 rect.x = is->xleft + x;
753 rect.y = is->ytop + y;
756 SDL_DisplayYUVOverlay(vp->bmp, &rect);
759 fill_rectangle(screen,
760 is->xleft, is->ytop, is->width, is->height,
761 QERGB(0x00, 0x00, 0x00));
766 static inline int compute_mod(int a, int b)
775 static void video_audio_display(VideoState *s)
777 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
778 int ch, channels, h, h2, bgcolor, fgcolor;
781 /* compute display index : center on currently output samples */
782 channels = s->audio_st->codec->channels;
783 nb_display_channels = channels;
786 delay = audio_write_get_buf_size(s);
789 /* to be more precise, we take into account the time spent since
790 the last buffer computation */
791 if (audio_callback_time) {
792 time_diff = av_gettime() - audio_callback_time;
793 delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
796 delay -= s->width / 2;
797 if (delay < s->width)
800 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
803 for(i=0; i<1000; i+=channels){
804 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
805 int a= s->sample_array[idx];
806 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
807 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
808 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
810 if(h<score && (b^c)<0){
816 s->last_i_start = i_start;
818 i_start = s->last_i_start;
821 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
822 fill_rectangle(screen,
823 s->xleft, s->ytop, s->width, s->height,
826 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
828 /* total height for one channel */
829 h = s->height / nb_display_channels;
830 /* graph height / 2 */
832 for(ch = 0;ch < nb_display_channels; ch++) {
834 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
835 for(x = 0; x < s->width; x++) {
836 y = (s->sample_array[i] * h2) >> 15;
843 fill_rectangle(screen,
844 s->xleft + x, ys, 1, y,
847 if (i >= SAMPLE_ARRAY_SIZE)
848 i -= SAMPLE_ARRAY_SIZE;
852 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
854 for(ch = 1;ch < nb_display_channels; ch++) {
855 y = s->ytop + ch * h;
856 fill_rectangle(screen,
857 s->xleft, y, s->width, 1,
860 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
863 static int video_open(VideoState *is){
864 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
867 if(is_full_screen) flags |= SDL_FULLSCREEN;
868 else flags |= SDL_RESIZABLE;
870 if (is_full_screen && fs_screen_width) {
872 h = fs_screen_height;
873 } else if(!is_full_screen && screen_width){
876 }else if (is->video_st && is->video_st->codec->width){
877 w = is->video_st->codec->width;
878 h = is->video_st->codec->height;
884 screen = SDL_SetVideoMode(w, h, 0, flags);
886 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
887 screen = SDL_SetVideoMode(w, h, 24, flags);
890 fprintf(stderr, "SDL: could not set video mode - exiting\n");
893 SDL_WM_SetCaption("FFplay", "FFplay");
895 is->width = screen->w;
896 is->height = screen->h;
901 /* display the current picture, if any */
902 static void video_display(VideoState *is)
905 video_open(cur_stream);
906 if (is->audio_st && is->show_audio)
907 video_audio_display(is);
908 else if (is->video_st)
909 video_image_display(is);
912 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
915 event.type = FF_REFRESH_EVENT;
916 event.user.data1 = opaque;
917 SDL_PushEvent(&event);
918 return 0; /* 0 means stop timer */
921 /* schedule a video refresh in 'delay' ms */
922 static SDL_TimerID schedule_refresh(VideoState *is, int delay)
924 if(!delay) delay=1; //SDL seems to be buggy when the delay is 0
925 return SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
928 /* get the current audio clock value */
929 static double get_audio_clock(VideoState *is)
932 int hw_buf_size, bytes_per_sec;
933 pts = is->audio_clock;
934 hw_buf_size = audio_write_get_buf_size(is);
937 bytes_per_sec = is->audio_st->codec->sample_rate *
938 2 * is->audio_st->codec->channels;
941 pts -= (double)hw_buf_size / bytes_per_sec;
945 /* get the current video clock value */
946 static double get_video_clock(VideoState *is)
949 return is->video_current_pts;
951 return is->video_current_pts_drift + av_gettime() / 1000000.0;
955 /* get the current external clock value */
956 static double get_external_clock(VideoState *is)
960 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
963 /* get the current master clock value */
964 static double get_master_clock(VideoState *is)
968 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
970 val = get_video_clock(is);
972 val = get_audio_clock(is);
973 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
975 val = get_audio_clock(is);
977 val = get_video_clock(is);
979 val = get_external_clock(is);
984 /* seek in the stream */
985 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
990 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
992 is->seek_flags |= AVSEEK_FLAG_BYTE;
997 /* pause or resume the video */
998 static void stream_pause(VideoState *is)
1001 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1002 if(is->read_pause_return != AVERROR(ENOSYS)){
1003 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1005 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1007 is->paused = !is->paused;
1010 static double compute_frame_delay(double frame_current_pts, VideoState *is)
1012 double actual_delay, delay, sync_threshold, ref_clock, diff;
1014 /* compute nominal delay */
1015 delay = frame_current_pts - is->frame_last_pts;
1016 if (delay <= 0 || delay >= 10.0) {
1017 /* if incorrect delay, use previous one */
1018 delay = is->frame_last_delay;
1020 is->frame_last_delay = delay;
1022 is->frame_last_pts = frame_current_pts;
1024 /* update delay to follow master synchronisation source */
1025 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1026 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1027 /* if video is slave, we try to correct big delays by
1028 duplicating or deleting a frame */
1029 ref_clock = get_master_clock(is);
1030 diff = frame_current_pts - ref_clock;
1032 /* skip or repeat frame. We take into account the
1033 delay to compute the threshold. I still don't know
1034 if it is the best guess */
1035 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1036 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1037 if (diff <= -sync_threshold)
1039 else if (diff >= sync_threshold)
1044 is->frame_timer += delay;
1045 /* compute the REAL delay (we need to do that to avoid
1047 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
1048 if (actual_delay < 0.010) {
1049 /* XXX: should skip picture */
1050 actual_delay = 0.010;
1053 #if defined(DEBUG_SYNC)
1054 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1055 delay, actual_delay, frame_current_pts, -diff);
1058 return actual_delay;
1061 /* called to display each frame */
1062 static void video_refresh_timer(void *opaque)
1064 VideoState *is = opaque;
1067 SubPicture *sp, *sp2;
1070 if (is->pictq_size == 0) {
1071 // fprintf(stderr, "Internal error detected in the SDL timer\n");
1073 /* dequeue the picture */
1074 vp = &is->pictq[is->pictq_rindex];
1076 /* update current video pts */
1077 is->video_current_pts = vp->pts;
1078 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1079 is->video_current_pos = vp->pos;
1081 if(is->subtitle_st) {
1082 if (is->subtitle_stream_changed) {
1083 SDL_LockMutex(is->subpq_mutex);
1085 while (is->subpq_size) {
1086 free_subpicture(&is->subpq[is->subpq_rindex]);
1088 /* update queue size and signal for next picture */
1089 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1090 is->subpq_rindex = 0;
1094 is->subtitle_stream_changed = 0;
1096 SDL_CondSignal(is->subpq_cond);
1097 SDL_UnlockMutex(is->subpq_mutex);
1099 if (is->subpq_size > 0) {
1100 sp = &is->subpq[is->subpq_rindex];
1102 if (is->subpq_size > 1)
1103 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1107 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1108 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1110 free_subpicture(sp);
1112 /* update queue size and signal for next picture */
1113 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1114 is->subpq_rindex = 0;
1116 SDL_LockMutex(is->subpq_mutex);
1118 SDL_CondSignal(is->subpq_cond);
1119 SDL_UnlockMutex(is->subpq_mutex);
1125 /* display picture */
1128 /* update queue size and signal for next picture */
1129 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1130 is->pictq_rindex = 0;
1132 SDL_LockMutex(is->pictq_mutex);
1135 SDL_CondSignal(is->pictq_cond);
1136 SDL_UnlockMutex(is->pictq_mutex);
1138 } else if (is->audio_st) {
1139 /* draw the next audio frame */
1141 schedule_refresh(is, 40);
1143 /* if only audio stream, then display the audio bars (better
1144 than nothing, just to test the implementation */
1146 /* display picture */
1149 schedule_refresh(is, 100);
1152 static int64_t last_time;
1154 int aqsize, vqsize, sqsize;
1157 cur_time = av_gettime();
1158 if (!last_time || (cur_time - last_time) >= 30000) {
1163 aqsize = is->audioq.size;
1165 vqsize = is->videoq.size;
1166 if (is->subtitle_st)
1167 sqsize = is->subtitleq.size;
1169 if (is->audio_st && is->video_st)
1170 av_diff = get_audio_clock(is) - get_video_clock(is);
1171 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB f=%Ld/%Ld \r",
1172 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1174 last_time = cur_time;
1179 /* allocate a picture (needs to do that in main thread to avoid
1180 potential locking problems */
1181 static void alloc_picture(void *opaque)
1183 VideoState *is = opaque;
1186 vp = &is->pictq[is->pictq_windex];
1189 SDL_FreeYUVOverlay(vp->bmp);
1191 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1192 is->video_st->codec->height,
1195 vp->width = is->video_st->codec->width;
1196 vp->height = is->video_st->codec->height;
1198 SDL_LockMutex(is->pictq_mutex);
1200 SDL_CondSignal(is->pictq_cond);
1201 SDL_UnlockMutex(is->pictq_mutex);
1206 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1208 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1213 /* wait until we have space to put a new picture */
1214 SDL_LockMutex(is->pictq_mutex);
1215 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1216 !is->videoq.abort_request) {
1217 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1219 SDL_UnlockMutex(is->pictq_mutex);
1221 if (is->videoq.abort_request)
1224 vp = &is->pictq[is->pictq_windex];
1226 /* alloc or resize hardware picture buffer */
1228 vp->width != is->video_st->codec->width ||
1229 vp->height != is->video_st->codec->height) {
1234 /* the allocation must be done in the main thread to avoid
1236 event.type = FF_ALLOC_EVENT;
1237 event.user.data1 = is;
1238 SDL_PushEvent(&event);
1240 /* wait until the picture is allocated */
1241 SDL_LockMutex(is->pictq_mutex);
1242 while (!vp->allocated && !is->videoq.abort_request) {
1243 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1245 SDL_UnlockMutex(is->pictq_mutex);
1247 if (is->videoq.abort_request)
1251 /* if the frame is not skipped, then display it */
1255 /* get a pointer on the bitmap */
1256 SDL_LockYUVOverlay (vp->bmp);
1258 dst_pix_fmt = PIX_FMT_YUV420P;
1259 memset(&pict,0,sizeof(AVPicture));
1260 pict.data[0] = vp->bmp->pixels[0];
1261 pict.data[1] = vp->bmp->pixels[2];
1262 pict.data[2] = vp->bmp->pixels[1];
1264 pict.linesize[0] = vp->bmp->pitches[0];
1265 pict.linesize[1] = vp->bmp->pitches[2];
1266 pict.linesize[2] = vp->bmp->pitches[1];
1267 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1268 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1269 is->video_st->codec->width, is->video_st->codec->height,
1270 is->video_st->codec->pix_fmt,
1271 is->video_st->codec->width, is->video_st->codec->height,
1272 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1273 if (is->img_convert_ctx == NULL) {
1274 fprintf(stderr, "Cannot initialize the conversion context\n");
1277 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1278 0, is->video_st->codec->height, pict.data, pict.linesize);
1279 /* update the bitmap content */
1280 SDL_UnlockYUVOverlay(vp->bmp);
1285 /* now we can update the picture count */
1286 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1287 is->pictq_windex = 0;
1288 SDL_LockMutex(is->pictq_mutex);
1290 //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
1291 vp->timer_id= schedule_refresh(is, (int)(compute_frame_delay(vp->pts, is) * 1000 + 0.5));
1292 SDL_UnlockMutex(is->pictq_mutex);
1298 * compute the exact PTS for the picture if it is omitted in the stream
1299 * @param pts1 the dts of the pkt / pts of the frame
1301 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1303 double frame_delay, pts;
1308 /* update video clock with pts, if present */
1309 is->video_clock = pts;
1311 pts = is->video_clock;
1313 /* update video clock for next frame */
1314 frame_delay = av_q2d(is->video_st->codec->time_base);
1315 /* for MPEG2, the frame can be repeated, so we update the
1316 clock accordingly */
1317 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1318 is->video_clock += frame_delay;
1320 #if defined(DEBUG_SYNC) && 0
1323 if (src_frame->pict_type == FF_B_TYPE)
1325 else if (src_frame->pict_type == FF_I_TYPE)
1329 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1333 return queue_picture(is, src_frame, pts, pos);
1336 static int video_thread(void *arg)
1338 VideoState *is = arg;
1339 AVPacket pkt1, *pkt = &pkt1;
1340 int len1, got_picture, i;
1341 AVFrame *frame= avcodec_alloc_frame();
1345 while (is->paused && !is->videoq.abort_request) {
1348 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1351 if(pkt->data == flush_pkt.data){
1352 avcodec_flush_buffers(is->video_st->codec);
1354 SDL_LockMutex(is->pictq_mutex);
1355 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1356 for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1357 if(is->pictq[i].timer_id){
1358 SDL_RemoveTimer(is->pictq[i].timer_id);
1359 is->pictq[i].timer_id=0;
1360 schedule_refresh(is, 1);
1363 while (is->pictq_size && !is->videoq.abort_request) {
1364 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1366 is->video_current_pos= -1;
1367 SDL_UnlockMutex(is->pictq_mutex);
1369 is->last_dts_for_fault_detection=
1370 is->last_pts_for_fault_detection= INT64_MIN;
1371 is->frame_last_pts= AV_NOPTS_VALUE;
1372 is->frame_last_delay = 0;
1377 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1378 this packet, if any */
1379 is->video_st->codec->reordered_opaque= pkt->pts;
1380 len1 = avcodec_decode_video2(is->video_st->codec,
1381 frame, &got_picture,
1385 if(pkt->dts != AV_NOPTS_VALUE){
1386 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1387 is->last_dts_for_fault_detection= pkt->dts;
1389 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1390 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1391 is->last_pts_for_fault_detection= frame->reordered_opaque;
1395 if( ( decoder_reorder_pts==1
1396 || (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
1397 || pkt->dts == AV_NOPTS_VALUE)
1398 && frame->reordered_opaque != AV_NOPTS_VALUE)
1399 pts= frame->reordered_opaque;
1400 else if(pkt->dts != AV_NOPTS_VALUE)
1404 pts *= av_q2d(is->video_st->time_base);
1409 if (output_picture2(is, frame, pts, pkt->pos) < 0)
1412 av_free_packet(pkt);
1415 stream_pause(cur_stream);
1422 static int subtitle_thread(void *arg)
1424 VideoState *is = arg;
1426 AVPacket pkt1, *pkt = &pkt1;
1427 int len1, got_subtitle;
1430 int r, g, b, y, u, v, a;
1433 while (is->paused && !is->subtitleq.abort_request) {
1436 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1439 if(pkt->data == flush_pkt.data){
1440 avcodec_flush_buffers(is->subtitle_st->codec);
1443 SDL_LockMutex(is->subpq_mutex);
1444 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1445 !is->subtitleq.abort_request) {
1446 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1448 SDL_UnlockMutex(is->subpq_mutex);
1450 if (is->subtitleq.abort_request)
1453 sp = &is->subpq[is->subpq_windex];
1455 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1456 this packet, if any */
1458 if (pkt->pts != AV_NOPTS_VALUE)
1459 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1461 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1462 &sp->sub, &got_subtitle,
1466 if (got_subtitle && sp->sub.format == 0) {
1469 for (i = 0; i < sp->sub.num_rects; i++)
1471 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1473 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1474 y = RGB_TO_Y_CCIR(r, g, b);
1475 u = RGB_TO_U_CCIR(r, g, b, 0);
1476 v = RGB_TO_V_CCIR(r, g, b, 0);
1477 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1481 /* now we can update the picture count */
1482 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1483 is->subpq_windex = 0;
1484 SDL_LockMutex(is->subpq_mutex);
1486 SDL_UnlockMutex(is->subpq_mutex);
1488 av_free_packet(pkt);
1491 // stream_pause(cur_stream);
1497 /* copy samples for viewing in editor window */
1498 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1500 int size, len, channels;
1502 channels = is->audio_st->codec->channels;
1504 size = samples_size / sizeof(short);
1506 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1509 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1511 is->sample_array_index += len;
1512 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1513 is->sample_array_index = 0;
1518 /* return the new audio buffer size (samples can be added or deleted
1519 to get better sync if video or external master clock) */
1520 static int synchronize_audio(VideoState *is, short *samples,
1521 int samples_size1, double pts)
1523 int n, samples_size;
1526 n = 2 * is->audio_st->codec->channels;
1527 samples_size = samples_size1;
1529 /* if not master, then we try to remove or add samples to correct the clock */
1530 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1531 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1532 double diff, avg_diff;
1533 int wanted_size, min_size, max_size, nb_samples;
1535 ref_clock = get_master_clock(is);
1536 diff = get_audio_clock(is) - ref_clock;
1538 if (diff < AV_NOSYNC_THRESHOLD) {
1539 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1540 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1541 /* not enough measures to have a correct estimate */
1542 is->audio_diff_avg_count++;
1544 /* estimate the A-V difference */
1545 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1547 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1548 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1549 nb_samples = samples_size / n;
1551 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1552 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1553 if (wanted_size < min_size)
1554 wanted_size = min_size;
1555 else if (wanted_size > max_size)
1556 wanted_size = max_size;
1558 /* add or remove samples to correction the synchro */
1559 if (wanted_size < samples_size) {
1560 /* remove samples */
1561 samples_size = wanted_size;
1562 } else if (wanted_size > samples_size) {
1563 uint8_t *samples_end, *q;
1567 nb = (samples_size - wanted_size);
1568 samples_end = (uint8_t *)samples + samples_size - n;
1569 q = samples_end + n;
1571 memcpy(q, samples_end, n);
1575 samples_size = wanted_size;
1579 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1580 diff, avg_diff, samples_size - samples_size1,
1581 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1585 /* too big difference : may be initial PTS errors, so
1587 is->audio_diff_avg_count = 0;
1588 is->audio_diff_cum = 0;
1592 return samples_size;
1595 /* decode one audio frame and returns its uncompressed size */
1596 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1598 AVPacket *pkt_temp = &is->audio_pkt_temp;
1599 AVPacket *pkt = &is->audio_pkt;
1600 AVCodecContext *dec= is->audio_st->codec;
1601 int n, len1, data_size;
1605 /* NOTE: the audio packet can contain several frames */
1606 while (pkt_temp->size > 0) {
1607 data_size = sizeof(is->audio_buf1);
1608 len1 = avcodec_decode_audio3(dec,
1609 (int16_t *)is->audio_buf1, &data_size,
1612 /* if error, we skip the frame */
1617 pkt_temp->data += len1;
1618 pkt_temp->size -= len1;
1622 if (dec->sample_fmt != is->audio_src_fmt) {
1623 if (is->reformat_ctx)
1624 av_audio_convert_free(is->reformat_ctx);
1625 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
1626 dec->sample_fmt, 1, NULL, 0);
1627 if (!is->reformat_ctx) {
1628 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
1629 avcodec_get_sample_fmt_name(dec->sample_fmt),
1630 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
1633 is->audio_src_fmt= dec->sample_fmt;
1636 if (is->reformat_ctx) {
1637 const void *ibuf[6]= {is->audio_buf1};
1638 void *obuf[6]= {is->audio_buf2};
1639 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
1640 int ostride[6]= {2};
1641 int len= data_size/istride[0];
1642 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
1643 printf("av_audio_convert() failed\n");
1646 is->audio_buf= is->audio_buf2;
1647 /* FIXME: existing code assume that data_size equals framesize*channels*2
1648 remove this legacy cruft */
1651 is->audio_buf= is->audio_buf1;
1654 /* if no pts, then compute it */
1655 pts = is->audio_clock;
1657 n = 2 * dec->channels;
1658 is->audio_clock += (double)data_size /
1659 (double)(n * dec->sample_rate);
1660 #if defined(DEBUG_SYNC)
1662 static double last_clock;
1663 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1664 is->audio_clock - last_clock,
1665 is->audio_clock, pts);
1666 last_clock = is->audio_clock;
1672 /* free the current packet */
1674 av_free_packet(pkt);
1676 if (is->paused || is->audioq.abort_request) {
1680 /* read next packet */
1681 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1683 if(pkt->data == flush_pkt.data){
1684 avcodec_flush_buffers(dec);
1688 pkt_temp->data = pkt->data;
1689 pkt_temp->size = pkt->size;
1691 /* if update the audio clock with the pts */
1692 if (pkt->pts != AV_NOPTS_VALUE) {
1693 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1698 /* get the current audio output buffer size, in samples. With SDL, we
1699 cannot have a precise information */
1700 static int audio_write_get_buf_size(VideoState *is)
1702 return is->audio_buf_size - is->audio_buf_index;
1706 /* prepare a new audio buffer */
1707 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1709 VideoState *is = opaque;
1710 int audio_size, len1;
1713 audio_callback_time = av_gettime();
1716 if (is->audio_buf_index >= is->audio_buf_size) {
1717 audio_size = audio_decode_frame(is, &pts);
1718 if (audio_size < 0) {
1719 /* if error, just output silence */
1720 is->audio_buf = is->audio_buf1;
1721 is->audio_buf_size = 1024;
1722 memset(is->audio_buf, 0, is->audio_buf_size);
1725 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1726 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1728 is->audio_buf_size = audio_size;
1730 is->audio_buf_index = 0;
1732 len1 = is->audio_buf_size - is->audio_buf_index;
1735 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1738 is->audio_buf_index += len1;
1742 /* open a given stream. Return 0 if OK */
1743 static int stream_component_open(VideoState *is, int stream_index)
1745 AVFormatContext *ic = is->ic;
1746 AVCodecContext *enc;
1748 SDL_AudioSpec wanted_spec, spec;
1750 if (stream_index < 0 || stream_index >= ic->nb_streams)
1752 enc = ic->streams[stream_index]->codec;
1754 /* prepare audio output */
1755 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1756 if (enc->channels > 0) {
1757 enc->request_channels = FFMIN(2, enc->channels);
1759 enc->request_channels = 2;
1763 codec = avcodec_find_decoder(enc->codec_id);
1764 enc->debug_mv = debug_mv;
1766 enc->workaround_bugs = workaround_bugs;
1767 enc->lowres = lowres;
1768 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1769 enc->idct_algo= idct;
1770 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1771 enc->skip_frame= skip_frame;
1772 enc->skip_idct= skip_idct;
1773 enc->skip_loop_filter= skip_loop_filter;
1774 enc->error_recognition= error_recognition;
1775 enc->error_concealment= error_concealment;
1776 avcodec_thread_init(enc, thread_count);
1778 set_context_opts(enc, avcodec_opts[enc->codec_type], 0);
1781 avcodec_open(enc, codec) < 0)
1784 /* prepare audio output */
1785 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1786 wanted_spec.freq = enc->sample_rate;
1787 wanted_spec.format = AUDIO_S16SYS;
1788 wanted_spec.channels = enc->channels;
1789 wanted_spec.silence = 0;
1790 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1791 wanted_spec.callback = sdl_audio_callback;
1792 wanted_spec.userdata = is;
1793 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1794 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1797 is->audio_hw_buf_size = spec.size;
1798 is->audio_src_fmt= SAMPLE_FMT_S16;
1801 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
1802 switch(enc->codec_type) {
1803 case CODEC_TYPE_AUDIO:
1804 is->audio_stream = stream_index;
1805 is->audio_st = ic->streams[stream_index];
1806 is->audio_buf_size = 0;
1807 is->audio_buf_index = 0;
1809 /* init averaging filter */
1810 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1811 is->audio_diff_avg_count = 0;
1812 /* since we do not have a precise anough audio fifo fullness,
1813 we correct audio sync only if larger than this threshold */
1814 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1816 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1817 packet_queue_init(&is->audioq);
1820 case CODEC_TYPE_VIDEO:
1821 is->video_stream = stream_index;
1822 is->video_st = ic->streams[stream_index];
1824 is->frame_timer = (double)av_gettime() / 1000000.0;
1825 // is->video_current_pts_time = av_gettime();
1827 packet_queue_init(&is->videoq);
1828 is->video_tid = SDL_CreateThread(video_thread, is);
1830 case CODEC_TYPE_SUBTITLE:
1831 is->subtitle_stream = stream_index;
1832 is->subtitle_st = ic->streams[stream_index];
1833 packet_queue_init(&is->subtitleq);
1835 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1843 static void stream_component_close(VideoState *is, int stream_index)
1845 AVFormatContext *ic = is->ic;
1846 AVCodecContext *enc;
1848 if (stream_index < 0 || stream_index >= ic->nb_streams)
1850 enc = ic->streams[stream_index]->codec;
1852 switch(enc->codec_type) {
1853 case CODEC_TYPE_AUDIO:
1854 packet_queue_abort(&is->audioq);
1858 packet_queue_end(&is->audioq);
1859 if (is->reformat_ctx)
1860 av_audio_convert_free(is->reformat_ctx);
1862 case CODEC_TYPE_VIDEO:
1863 packet_queue_abort(&is->videoq);
1865 /* note: we also signal this mutex to make sure we deblock the
1866 video thread in all cases */
1867 SDL_LockMutex(is->pictq_mutex);
1868 SDL_CondSignal(is->pictq_cond);
1869 SDL_UnlockMutex(is->pictq_mutex);
1871 SDL_WaitThread(is->video_tid, NULL);
1873 packet_queue_end(&is->videoq);
1875 case CODEC_TYPE_SUBTITLE:
1876 packet_queue_abort(&is->subtitleq);
1878 /* note: we also signal this mutex to make sure we deblock the
1879 video thread in all cases */
1880 SDL_LockMutex(is->subpq_mutex);
1881 is->subtitle_stream_changed = 1;
1883 SDL_CondSignal(is->subpq_cond);
1884 SDL_UnlockMutex(is->subpq_mutex);
1886 SDL_WaitThread(is->subtitle_tid, NULL);
1888 packet_queue_end(&is->subtitleq);
1894 ic->streams[stream_index]->discard = AVDISCARD_ALL;
1896 switch(enc->codec_type) {
1897 case CODEC_TYPE_AUDIO:
1898 is->audio_st = NULL;
1899 is->audio_stream = -1;
1901 case CODEC_TYPE_VIDEO:
1902 is->video_st = NULL;
1903 is->video_stream = -1;
1905 case CODEC_TYPE_SUBTITLE:
1906 is->subtitle_st = NULL;
1907 is->subtitle_stream = -1;
1914 /* since we have only one decoding thread, we can use a global
1915 variable instead of a thread local variable */
1916 static VideoState *global_video_state;
1918 static int decode_interrupt_cb(void)
1920 return (global_video_state && global_video_state->abort_request);
1923 /* this thread gets the stream from the disk or the network */
1924 static int decode_thread(void *arg)
1926 VideoState *is = arg;
1927 AVFormatContext *ic;
1928 int err, i, ret, video_index, audio_index, subtitle_index;
1929 AVPacket pkt1, *pkt = &pkt1;
1930 AVFormatParameters params, *ap = ¶ms;
1933 ic = avformat_alloc_context();
1937 subtitle_index = -1;
1938 is->video_stream = -1;
1939 is->audio_stream = -1;
1940 is->subtitle_stream = -1;
1942 global_video_state = is;
1943 url_set_interrupt_cb(decode_interrupt_cb);
1945 memset(ap, 0, sizeof(*ap));
1947 ap->prealloced_context = 1;
1948 ap->width = frame_width;
1949 ap->height= frame_height;
1950 ap->time_base= (AVRational){1, 25};
1951 ap->pix_fmt = frame_pix_fmt;
1953 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
1955 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1957 print_error(is->filename, err);
1964 ic->flags |= AVFMT_FLAG_GENPTS;
1966 err = av_find_stream_info(ic);
1968 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1973 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
1976 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
1978 /* if seeking requested, we execute it */
1979 if (start_time != AV_NOPTS_VALUE) {
1982 timestamp = start_time;
1983 /* add the stream start time */
1984 if (ic->start_time != AV_NOPTS_VALUE)
1985 timestamp += ic->start_time;
1986 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
1988 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1989 is->filename, (double)timestamp / AV_TIME_BASE);
1993 for(i = 0; i < ic->nb_streams; i++) {
1994 AVCodecContext *enc = ic->streams[i]->codec;
1995 ic->streams[i]->discard = AVDISCARD_ALL;
1996 switch(enc->codec_type) {
1997 case CODEC_TYPE_AUDIO:
1998 if (wanted_audio_stream-- >= 0 && !audio_disable)
2001 case CODEC_TYPE_VIDEO:
2002 if (wanted_video_stream-- >= 0 && !video_disable)
2005 case CODEC_TYPE_SUBTITLE:
2006 if (wanted_subtitle_stream-- >= 0 && !video_disable)
2014 dump_format(ic, 0, is->filename, 0);
2017 /* open the streams */
2018 if (audio_index >= 0) {
2019 stream_component_open(is, audio_index);
2022 if (video_index >= 0) {
2023 stream_component_open(is, video_index);
2025 if (!display_disable)
2029 if (subtitle_index >= 0) {
2030 stream_component_open(is, subtitle_index);
2033 if (is->video_stream < 0 && is->audio_stream < 0) {
2034 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2040 if (is->abort_request)
2042 if (is->paused != is->last_paused) {
2043 is->last_paused = is->paused;
2045 is->read_pause_return= av_read_pause(ic);
2049 #if CONFIG_RTSP_DEMUXER
2050 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2051 /* wait 10 ms to avoid trying to get another packet */
2058 int64_t seek_target= is->seek_pos;
2059 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2060 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2061 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2062 // of the seek_pos/seek_rel variables
2064 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2066 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2068 if (is->audio_stream >= 0) {
2069 packet_queue_flush(&is->audioq);
2070 packet_queue_put(&is->audioq, &flush_pkt);
2072 if (is->subtitle_stream >= 0) {
2073 packet_queue_flush(&is->subtitleq);
2074 packet_queue_put(&is->subtitleq, &flush_pkt);
2076 if (is->video_stream >= 0) {
2077 packet_queue_flush(&is->videoq);
2078 packet_queue_put(&is->videoq, &flush_pkt);
2085 /* if the queue are full, no need to read more */
2086 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2087 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2088 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2089 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2094 if(url_feof(ic->pb) || eof) {
2095 if(is->video_stream >= 0){
2096 av_init_packet(pkt);
2099 pkt->stream_index= is->video_stream;
2100 packet_queue_put(&is->videoq, pkt);
2105 ret = av_read_frame(ic, pkt);
2107 if (ret == AVERROR_EOF)
2109 if (url_ferror(ic->pb))
2111 SDL_Delay(100); /* wait for user event */
2114 if (pkt->stream_index == is->audio_stream) {
2115 packet_queue_put(&is->audioq, pkt);
2116 } else if (pkt->stream_index == is->video_stream) {
2117 packet_queue_put(&is->videoq, pkt);
2118 } else if (pkt->stream_index == is->subtitle_stream) {
2119 packet_queue_put(&is->subtitleq, pkt);
2121 av_free_packet(pkt);
2124 /* wait until the end */
2125 while (!is->abort_request) {
2131 /* disable interrupting */
2132 global_video_state = NULL;
2134 /* close each stream */
2135 if (is->audio_stream >= 0)
2136 stream_component_close(is, is->audio_stream);
2137 if (is->video_stream >= 0)
2138 stream_component_close(is, is->video_stream);
2139 if (is->subtitle_stream >= 0)
2140 stream_component_close(is, is->subtitle_stream);
2142 av_close_input_file(is->ic);
2143 is->ic = NULL; /* safety */
2145 url_set_interrupt_cb(NULL);
2150 event.type = FF_QUIT_EVENT;
2151 event.user.data1 = is;
2152 SDL_PushEvent(&event);
2157 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2161 is = av_mallocz(sizeof(VideoState));
2164 av_strlcpy(is->filename, filename, sizeof(is->filename));
2165 is->iformat = iformat;
2169 /* start video display */
2170 is->pictq_mutex = SDL_CreateMutex();
2171 is->pictq_cond = SDL_CreateCond();
2173 is->subpq_mutex = SDL_CreateMutex();
2174 is->subpq_cond = SDL_CreateCond();
2176 /* add the refresh timer to draw the picture */
2177 schedule_refresh(is, 40);
2179 is->av_sync_type = av_sync_type;
2180 is->parse_tid = SDL_CreateThread(decode_thread, is);
2181 if (!is->parse_tid) {
2188 static void stream_close(VideoState *is)
2192 /* XXX: use a special url_shutdown call to abort parse cleanly */
2193 is->abort_request = 1;
2194 SDL_WaitThread(is->parse_tid, NULL);
2196 /* free all pictures */
2197 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2200 SDL_FreeYUVOverlay(vp->bmp);
2204 SDL_DestroyMutex(is->pictq_mutex);
2205 SDL_DestroyCond(is->pictq_cond);
2206 SDL_DestroyMutex(is->subpq_mutex);
2207 SDL_DestroyCond(is->subpq_cond);
2208 if (is->img_convert_ctx)
2209 sws_freeContext(is->img_convert_ctx);
2213 static void stream_cycle_channel(VideoState *is, int codec_type)
2215 AVFormatContext *ic = is->ic;
2216 int start_index, stream_index;
2219 if (codec_type == CODEC_TYPE_VIDEO)
2220 start_index = is->video_stream;
2221 else if (codec_type == CODEC_TYPE_AUDIO)
2222 start_index = is->audio_stream;
2224 start_index = is->subtitle_stream;
2225 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2227 stream_index = start_index;
2229 if (++stream_index >= is->ic->nb_streams)
2231 if (codec_type == CODEC_TYPE_SUBTITLE)
2238 if (stream_index == start_index)
2240 st = ic->streams[stream_index];
2241 if (st->codec->codec_type == codec_type) {
2242 /* check that parameters are OK */
2243 switch(codec_type) {
2244 case CODEC_TYPE_AUDIO:
2245 if (st->codec->sample_rate != 0 &&
2246 st->codec->channels != 0)
2249 case CODEC_TYPE_VIDEO:
2250 case CODEC_TYPE_SUBTITLE:
2258 stream_component_close(is, start_index);
2259 stream_component_open(is, stream_index);
2263 static void toggle_full_screen(void)
2265 is_full_screen = !is_full_screen;
2266 if (!fs_screen_width) {
2267 /* use default SDL method */
2268 // SDL_WM_ToggleFullScreen(screen);
2270 video_open(cur_stream);
2273 static void toggle_pause(void)
2276 stream_pause(cur_stream);
2280 static void step_to_next_frame(void)
2283 /* if the stream is paused unpause it, then step */
2284 if (cur_stream->paused)
2285 stream_pause(cur_stream);
2290 static void do_exit(void)
2294 stream_close(cur_stream);
2297 for (i = 0; i < CODEC_TYPE_NB; i++)
2298 av_free(avcodec_opts[i]);
2299 av_free(avformat_opts);
2307 static void toggle_audio_display(void)
2310 cur_stream->show_audio = !cur_stream->show_audio;
2314 /* handle an event sent by the GUI */
2315 static void event_loop(void)
2318 double incr, pos, frac;
2321 SDL_WaitEvent(&event);
2322 switch(event.type) {
2324 switch(event.key.keysym.sym) {
2330 toggle_full_screen();
2336 case SDLK_s: //S: Step to next frame
2337 step_to_next_frame();
2341 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2345 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2349 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2352 toggle_audio_display();
2367 if (seek_by_bytes) {
2368 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2369 pos= cur_stream->video_current_pos;
2370 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2371 pos= cur_stream->audio_pkt.pos;
2373 pos = url_ftell(cur_stream->ic->pb);
2374 if (cur_stream->ic->bit_rate)
2375 incr *= cur_stream->ic->bit_rate / 60.0;
2379 stream_seek(cur_stream, pos, incr, 1);
2381 pos = get_master_clock(cur_stream);
2383 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2391 case SDL_MOUSEBUTTONDOWN:
2393 if(seek_by_bytes || cur_stream->ic->duration<=0){
2394 uint64_t size= url_fsize(cur_stream->ic->pb);
2395 stream_seek(cur_stream, size*(double)event.button.x/(double)cur_stream->width, 0, 1);
2399 int tns, thh, tmm, tss;
2400 tns = cur_stream->ic->duration/1000000LL;
2402 tmm = (tns%3600)/60;
2404 frac = (double)event.button.x/(double)cur_stream->width;
2409 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2410 hh, mm, ss, thh, tmm, tss);
2411 ts = frac*cur_stream->ic->duration;
2412 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2413 ts += cur_stream->ic->start_time;
2414 stream_seek(cur_stream, ts, 0, 0);
2418 case SDL_VIDEORESIZE:
2420 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2421 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2422 screen_width = cur_stream->width = event.resize.w;
2423 screen_height= cur_stream->height= event.resize.h;
2430 case FF_ALLOC_EVENT:
2431 video_open(event.user.data1);
2432 alloc_picture(event.user.data1);
2434 case FF_REFRESH_EVENT:
2435 video_refresh_timer(event.user.data1);
2443 static void opt_frame_size(const char *arg)
2445 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2446 fprintf(stderr, "Incorrect frame size\n");
2449 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2450 fprintf(stderr, "Frame size must be a multiple of 2\n");
2455 static int opt_width(const char *opt, const char *arg)
2457 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2461 static int opt_height(const char *opt, const char *arg)
2463 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2467 static void opt_format(const char *arg)
2469 file_iformat = av_find_input_format(arg);
2470 if (!file_iformat) {
2471 fprintf(stderr, "Unknown input format: %s\n", arg);
2476 static void opt_frame_pix_fmt(const char *arg)
2478 frame_pix_fmt = av_get_pix_fmt(arg);
2481 static int opt_sync(const char *opt, const char *arg)
2483 if (!strcmp(arg, "audio"))
2484 av_sync_type = AV_SYNC_AUDIO_MASTER;
2485 else if (!strcmp(arg, "video"))
2486 av_sync_type = AV_SYNC_VIDEO_MASTER;
2487 else if (!strcmp(arg, "ext"))
2488 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2490 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2496 static int opt_seek(const char *opt, const char *arg)
2498 start_time = parse_time_or_die(opt, arg, 1);
2502 static int opt_debug(const char *opt, const char *arg)
2504 av_log_set_level(99);
2505 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2509 static int opt_vismv(const char *opt, const char *arg)
2511 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2515 static int opt_thread_count(const char *opt, const char *arg)
2517 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2519 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2524 static const OptionDef options[] = {
2525 #include "cmdutils_common_opts.h"
2526 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2527 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2528 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2529 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2530 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2531 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2532 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "select desired audio stream", "stream_number" },
2533 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "select desired video stream", "stream_number" },
2534 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_subtitle_stream}, "select desired subtitle stream", "stream_number" },
2535 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2536 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto" },
2537 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2538 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2539 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2540 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2541 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2542 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2543 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2544 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2545 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2546 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2547 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2548 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2549 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2550 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2551 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2552 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2553 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2554 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2555 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2556 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2560 static void show_usage(void)
2562 printf("Simple media player\n");
2563 printf("usage: ffplay [options] input_file\n");
2567 static void show_help(void)
2570 show_help_options(options, "Main options:\n",
2572 show_help_options(options, "\nAdvanced options:\n",
2573 OPT_EXPERT, OPT_EXPERT);
2574 printf("\nWhile playing:\n"
2576 "f toggle full screen\n"
2578 "a cycle audio channel\n"
2579 "v cycle video channel\n"
2580 "t cycle subtitle channel\n"
2581 "w show audio waves\n"
2582 "left/right seek backward/forward 10 seconds\n"
2583 "down/up seek backward/forward 1 minute\n"
2584 "mouse click seek to percentage in file corresponding to fraction of width\n"
2588 static void opt_input_file(const char *filename)
2590 if (!strcmp(filename, "-"))
2592 input_filename = filename;
2595 /* Called from the main */
2596 int main(int argc, char **argv)
2600 /* register all codecs, demux and protocols */
2601 avcodec_register_all();
2602 avdevice_register_all();
2605 for(i=0; i<CODEC_TYPE_NB; i++){
2606 avcodec_opts[i]= avcodec_alloc_context2(i);
2608 avformat_opts = avformat_alloc_context();
2609 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
2613 parse_options(argc, argv, options, opt_input_file);
2615 if (!input_filename) {
2617 fprintf(stderr, "An input file must be specified\n");
2618 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
2622 if (display_disable) {
2625 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2626 #if !defined(__MINGW32__) && !defined(__APPLE__)
2627 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
2629 if (SDL_Init (flags)) {
2630 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2634 if (!display_disable) {
2635 #if HAVE_SDL_VIDEO_SIZE
2636 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2637 fs_screen_width = vi->current_w;
2638 fs_screen_height = vi->current_h;
2642 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2643 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2644 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2645 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2647 av_init_packet(&flush_pkt);
2648 flush_pkt.data= "FLUSH";
2650 cur_stream = stream_open(input_filename, file_iformat);