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
24 #include "libavutil/avstring.h"
25 #include "libavformat/avformat.h"
26 #include "libavformat/rtsp.h"
27 #include "libavdevice/avdevice.h"
28 #include "libswscale/swscale.h"
29 #include "libavcodec/audioconvert.h"
34 #include <SDL_thread.h>
37 #undef main /* We don't want SDL to override our main() */
42 const char program_name[] = "FFplay";
43 const int program_birth_year = 2003;
47 #define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
48 #define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
49 #define MAX_SUBTITLEQ_SIZE (5 * 16 * 1024)
51 /* SDL audio buffer size, in samples. Should be small to have precise
52 A/V sync as SDL does not have hardware buffer fullness info. */
53 #define SDL_AUDIO_BUFFER_SIZE 1024
55 /* no AV sync correction is done if below the AV sync threshold */
56 #define AV_SYNC_THRESHOLD 0.01
57 /* no AV correction is done if too big error */
58 #define AV_NOSYNC_THRESHOLD 10.0
60 /* maximum audio speed change to get correct sync */
61 #define SAMPLE_CORRECTION_PERCENT_MAX 10
63 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
64 #define AUDIO_DIFF_AVG_NB 20
66 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
67 #define SAMPLE_ARRAY_SIZE (2*65536)
69 static int sws_flags = SWS_BICUBIC;
71 typedef struct PacketQueue {
72 AVPacketList *first_pkt, *last_pkt;
80 #define VIDEO_PICTURE_QUEUE_SIZE 1
81 #define SUBPICTURE_QUEUE_SIZE 4
83 typedef struct VideoPicture {
84 double pts; ///<presentation time stamp for this picture
86 int width, height; /* source height & width */
90 typedef struct SubPicture {
91 double pts; /* presentation time stamp for this picture */
96 AV_SYNC_AUDIO_MASTER, /* default choice */
98 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
101 typedef struct VideoState {
102 SDL_Thread *parse_tid;
103 SDL_Thread *video_tid;
104 AVInputFormat *iformat;
113 int dtg_active_format;
118 double external_clock; /* external clock base */
119 int64_t external_clock_time;
122 double audio_diff_cum; /* used for AV difference average computation */
123 double audio_diff_avg_coef;
124 double audio_diff_threshold;
125 int audio_diff_avg_count;
128 int audio_hw_buf_size;
129 /* samples output by the codec. we reserve more space for avsync
131 DECLARE_ALIGNED(16,uint8_t,audio_buf1[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]);
132 DECLARE_ALIGNED(16,uint8_t,audio_buf2[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]);
134 unsigned int audio_buf_size; /* in bytes */
135 int audio_buf_index; /* in bytes */
137 uint8_t *audio_pkt_data;
139 enum SampleFormat audio_src_fmt;
140 AVAudioConvert *reformat_ctx;
142 int show_audio; /* if true, display audio samples */
143 int16_t sample_array[SAMPLE_ARRAY_SIZE];
144 int sample_array_index;
147 SDL_Thread *subtitle_tid;
149 int subtitle_stream_changed;
150 AVStream *subtitle_st;
151 PacketQueue subtitleq;
152 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
153 int subpq_size, subpq_rindex, subpq_windex;
154 SDL_mutex *subpq_mutex;
155 SDL_cond *subpq_cond;
158 double frame_last_pts;
159 double frame_last_delay;
160 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
164 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
165 int64_t video_current_pts_time; ///<time (av_gettime) at which we updated video_current_pts - used to have running video pts
166 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
167 int pictq_size, pictq_rindex, pictq_windex;
168 SDL_mutex *pictq_mutex;
169 SDL_cond *pictq_cond;
171 // QETimer *video_timer;
173 int width, height, xleft, ytop;
176 static void show_help(void);
177 static int audio_write_get_buf_size(VideoState *is);
179 /* options specified by the user */
180 static AVInputFormat *file_iformat;
181 static const char *input_filename;
182 static int fs_screen_width;
183 static int fs_screen_height;
184 static int screen_width = 0;
185 static int screen_height = 0;
186 static int frame_width = 0;
187 static int frame_height = 0;
188 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
189 static int audio_disable;
190 static int video_disable;
191 static int wanted_audio_stream= 0;
192 static int wanted_video_stream= 0;
193 static int seek_by_bytes;
194 static int display_disable;
195 static int show_status;
196 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
197 static int64_t start_time = AV_NOPTS_VALUE;
198 static int debug = 0;
199 static int debug_mv = 0;
201 static int thread_count = 1;
202 static int workaround_bugs = 1;
204 static int genpts = 0;
205 static int lowres = 0;
206 static int idct = FF_IDCT_AUTO;
207 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
208 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
209 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
210 static int error_resilience = FF_ER_CAREFUL;
211 static int error_concealment = 3;
212 static int decoder_reorder_pts= 0;
214 /* current context */
215 static int is_full_screen;
216 static VideoState *cur_stream;
217 static int64_t audio_callback_time;
221 #define FF_ALLOC_EVENT (SDL_USEREVENT)
222 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
223 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
227 /* packet queue handling */
228 static void packet_queue_init(PacketQueue *q)
230 memset(q, 0, sizeof(PacketQueue));
231 q->mutex = SDL_CreateMutex();
232 q->cond = SDL_CreateCond();
235 static void packet_queue_flush(PacketQueue *q)
237 AVPacketList *pkt, *pkt1;
239 SDL_LockMutex(q->mutex);
240 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
242 av_free_packet(&pkt->pkt);
249 SDL_UnlockMutex(q->mutex);
252 static void packet_queue_end(PacketQueue *q)
254 packet_queue_flush(q);
255 SDL_DestroyMutex(q->mutex);
256 SDL_DestroyCond(q->cond);
259 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
263 /* duplicate the packet */
264 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
267 pkt1 = av_malloc(sizeof(AVPacketList));
274 SDL_LockMutex(q->mutex);
280 q->last_pkt->next = pkt1;
283 q->size += pkt1->pkt.size;
284 /* XXX: should duplicate packet data in DV case */
285 SDL_CondSignal(q->cond);
287 SDL_UnlockMutex(q->mutex);
291 static void packet_queue_abort(PacketQueue *q)
293 SDL_LockMutex(q->mutex);
295 q->abort_request = 1;
297 SDL_CondSignal(q->cond);
299 SDL_UnlockMutex(q->mutex);
302 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
303 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
308 SDL_LockMutex(q->mutex);
311 if (q->abort_request) {
318 q->first_pkt = pkt1->next;
322 q->size -= pkt1->pkt.size;
331 SDL_CondWait(q->cond, q->mutex);
334 SDL_UnlockMutex(q->mutex);
338 static inline void fill_rectangle(SDL_Surface *screen,
339 int x, int y, int w, int h, int color)
346 SDL_FillRect(screen, &rect, color);
350 /* draw only the border of a rectangle */
351 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
355 /* fill the background */
359 w2 = s->width - (x + w);
365 h2 = s->height - (y + h);
368 fill_rectangle(screen,
372 fill_rectangle(screen,
373 s->xleft + s->width - w2, s->ytop,
376 fill_rectangle(screen,
377 s->xleft + w1, s->ytop,
378 s->width - w1 - w2, h1,
380 fill_rectangle(screen,
381 s->xleft + w1, s->ytop + s->height - h2,
382 s->width - w1 - w2, h2,
390 #define ONE_HALF (1 << (SCALEBITS - 1))
391 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
393 #define RGB_TO_Y_CCIR(r, g, b) \
394 ((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
395 FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
397 #define RGB_TO_U_CCIR(r1, g1, b1, shift)\
398 (((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \
399 FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
401 #define RGB_TO_V_CCIR(r1, g1, b1, shift)\
402 (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \
403 FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
405 #define ALPHA_BLEND(a, oldp, newp, s)\
406 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
408 #define RGBA_IN(r, g, b, a, s)\
410 unsigned int v = ((const uint32_t *)(s))[0];\
411 a = (v >> 24) & 0xff;\
412 r = (v >> 16) & 0xff;\
413 g = (v >> 8) & 0xff;\
417 #define YUVA_IN(y, u, v, a, s, pal)\
419 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
420 a = (val >> 24) & 0xff;\
421 y = (val >> 16) & 0xff;\
422 u = (val >> 8) & 0xff;\
426 #define YUVA_OUT(d, y, u, v, a)\
428 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
434 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
436 int wrap, wrap3, width2, skip2;
437 int y, u, v, a, u1, v1, a1, w, h;
438 uint8_t *lum, *cb, *cr;
441 int dstx, dsty, dstw, dsth;
443 dstx = FFMIN(FFMAX(rect->x, 0), imgw);
444 dstw = FFMIN(FFMAX(rect->w, 0), imgw - dstx);
445 dsty = FFMIN(FFMAX(rect->y, 0), imgh);
446 dsth = FFMIN(FFMAX(rect->h, 0), imgh - dsty);
447 lum = dst->data[0] + dsty * dst->linesize[0];
448 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
449 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
451 width2 = (dstw + 1) >> 1;
453 wrap = dst->linesize[0];
454 wrap3 = rect->linesize;
456 pal = rect->rgba_palette; /* Now in YCrCb! */
464 YUVA_IN(y, u, v, a, p, pal);
465 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
466 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
467 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
473 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
474 YUVA_IN(y, u, v, a, p, pal);
478 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
480 YUVA_IN(y, u, v, a, p + BPP, pal);
484 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
485 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
486 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
493 YUVA_IN(y, u, v, a, p, pal);
494 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
495 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
496 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
498 p += wrap3 + (wrap3 - dstw * BPP);
499 lum += wrap + (wrap - dstw - dstx);
500 cb += dst->linesize[1] - width2 - skip2;
501 cr += dst->linesize[2] - width2 - skip2;
503 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
509 YUVA_IN(y, u, v, a, p, pal);
513 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
516 YUVA_IN(y, u, v, a, p, pal);
520 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
521 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
522 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
528 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
529 YUVA_IN(y, u, v, a, p, pal);
533 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
535 YUVA_IN(y, u, v, a, p, pal);
539 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
543 YUVA_IN(y, u, v, a, p, pal);
547 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
549 YUVA_IN(y, u, v, a, p, pal);
553 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
555 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
556 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
560 p += -wrap3 + 2 * BPP;
564 YUVA_IN(y, u, v, a, p, pal);
568 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
571 YUVA_IN(y, u, v, a, p, pal);
575 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
576 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
577 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
583 p += wrap3 + (wrap3 - dstw * BPP);
584 lum += wrap + (wrap - dstw - dstx);
585 cb += dst->linesize[1] - width2 - skip2;
586 cr += dst->linesize[2] - width2 - skip2;
588 /* handle odd height */
595 YUVA_IN(y, u, v, a, p, pal);
596 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
597 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
598 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
604 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
605 YUVA_IN(y, u, v, a, p, pal);
609 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
611 YUVA_IN(y, u, v, a, p + BPP, pal);
615 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
616 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
617 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
624 YUVA_IN(y, u, v, a, p, pal);
625 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
626 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
627 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
632 static void free_subpicture(SubPicture *sp)
636 for (i = 0; i < sp->sub.num_rects; i++)
638 av_free(sp->sub.rects[i].bitmap);
639 av_free(sp->sub.rects[i].rgba_palette);
642 av_free(sp->sub.rects);
644 memset(&sp->sub, 0, sizeof(AVSubtitle));
647 static void video_image_display(VideoState *is)
653 int width, height, x, y;
657 vp = &is->pictq[is->pictq_rindex];
659 /* XXX: use variable in the frame */
660 if (is->video_st->codec->sample_aspect_ratio.num == 0)
663 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio)
664 * is->video_st->codec->width / is->video_st->codec->height;
665 if (aspect_ratio <= 0.0)
666 aspect_ratio = (float)is->video_st->codec->width /
667 (float)is->video_st->codec->height;
668 /* if an active format is indicated, then it overrides the
671 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
672 is->dtg_active_format = is->video_st->codec->dtg_active_format;
673 printf("dtg_active_format=%d\n", is->dtg_active_format);
677 switch(is->video_st->codec->dtg_active_format) {
678 case FF_DTG_AFD_SAME:
683 aspect_ratio = 4.0 / 3.0;
685 case FF_DTG_AFD_16_9:
686 aspect_ratio = 16.0 / 9.0;
688 case FF_DTG_AFD_14_9:
689 aspect_ratio = 14.0 / 9.0;
691 case FF_DTG_AFD_4_3_SP_14_9:
692 aspect_ratio = 14.0 / 9.0;
694 case FF_DTG_AFD_16_9_SP_14_9:
695 aspect_ratio = 14.0 / 9.0;
697 case FF_DTG_AFD_SP_4_3:
698 aspect_ratio = 4.0 / 3.0;
705 if (is->subpq_size > 0)
707 sp = &is->subpq[is->subpq_rindex];
709 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
711 SDL_LockYUVOverlay (vp->bmp);
713 pict.data[0] = vp->bmp->pixels[0];
714 pict.data[1] = vp->bmp->pixels[2];
715 pict.data[2] = vp->bmp->pixels[1];
717 pict.linesize[0] = vp->bmp->pitches[0];
718 pict.linesize[1] = vp->bmp->pitches[2];
719 pict.linesize[2] = vp->bmp->pitches[1];
721 for (i = 0; i < sp->sub.num_rects; i++)
722 blend_subrect(&pict, &sp->sub.rects[i],
723 vp->bmp->w, vp->bmp->h);
725 SDL_UnlockYUVOverlay (vp->bmp);
731 /* XXX: we suppose the screen has a 1.0 pixel ratio */
733 width = ((int)rint(height * aspect_ratio)) & -3;
734 if (width > is->width) {
736 height = ((int)rint(width / aspect_ratio)) & -3;
738 x = (is->width - width) / 2;
739 y = (is->height - height) / 2;
740 if (!is->no_background) {
741 /* fill the background */
742 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
744 is->no_background = 0;
746 rect.x = is->xleft + x;
747 rect.y = is->ytop + y;
750 SDL_DisplayYUVOverlay(vp->bmp, &rect);
753 fill_rectangle(screen,
754 is->xleft, is->ytop, is->width, is->height,
755 QERGB(0x00, 0x00, 0x00));
760 static inline int compute_mod(int a, int b)
769 static void video_audio_display(VideoState *s)
771 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
772 int ch, channels, h, h2, bgcolor, fgcolor;
775 /* compute display index : center on currently output samples */
776 channels = s->audio_st->codec->channels;
777 nb_display_channels = channels;
780 delay = audio_write_get_buf_size(s);
783 /* to be more precise, we take into account the time spent since
784 the last buffer computation */
785 if (audio_callback_time) {
786 time_diff = av_gettime() - audio_callback_time;
787 delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
790 delay -= s->width / 2;
791 if (delay < s->width)
794 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
797 for(i=0; i<1000; i+=channels){
798 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
799 int a= s->sample_array[idx];
800 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
801 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
802 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
804 if(h<score && (b^c)<0){
810 s->last_i_start = i_start;
812 i_start = s->last_i_start;
815 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
816 fill_rectangle(screen,
817 s->xleft, s->ytop, s->width, s->height,
820 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
822 /* total height for one channel */
823 h = s->height / nb_display_channels;
824 /* graph height / 2 */
826 for(ch = 0;ch < nb_display_channels; ch++) {
828 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
829 for(x = 0; x < s->width; x++) {
830 y = (s->sample_array[i] * h2) >> 15;
837 fill_rectangle(screen,
838 s->xleft + x, ys, 1, y,
841 if (i >= SAMPLE_ARRAY_SIZE)
842 i -= SAMPLE_ARRAY_SIZE;
846 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
848 for(ch = 1;ch < nb_display_channels; ch++) {
849 y = s->ytop + ch * h;
850 fill_rectangle(screen,
851 s->xleft, y, s->width, 1,
854 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
857 static int video_open(VideoState *is){
858 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
861 if(is_full_screen) flags |= SDL_FULLSCREEN;
862 else flags |= SDL_RESIZABLE;
864 if (is_full_screen && fs_screen_width) {
866 h = fs_screen_height;
867 } else if(!is_full_screen && screen_width){
870 }else if (is->video_st && is->video_st->codec->width){
871 w = is->video_st->codec->width;
872 h = is->video_st->codec->height;
878 screen = SDL_SetVideoMode(w, h, 0, flags);
880 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
881 screen = SDL_SetVideoMode(w, h, 24, flags);
884 fprintf(stderr, "SDL: could not set video mode - exiting\n");
887 SDL_WM_SetCaption("FFplay", "FFplay");
889 is->width = screen->w;
890 is->height = screen->h;
895 /* display the current picture, if any */
896 static void video_display(VideoState *is)
899 video_open(cur_stream);
900 if (is->audio_st && is->show_audio)
901 video_audio_display(is);
902 else if (is->video_st)
903 video_image_display(is);
906 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
909 event.type = FF_REFRESH_EVENT;
910 event.user.data1 = opaque;
911 SDL_PushEvent(&event);
912 return 0; /* 0 means stop timer */
915 /* schedule a video refresh in 'delay' ms */
916 static void schedule_refresh(VideoState *is, int delay)
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)
945 delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
947 return is->video_current_pts + delta;
950 /* get the current external clock value */
951 static double get_external_clock(VideoState *is)
955 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
958 /* get the current master clock value */
959 static double get_master_clock(VideoState *is)
963 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
965 val = get_video_clock(is);
967 val = get_audio_clock(is);
968 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
970 val = get_audio_clock(is);
972 val = get_video_clock(is);
974 val = get_external_clock(is);
979 /* seek in the stream */
980 static void stream_seek(VideoState *is, int64_t pos, int rel)
984 is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0;
986 is->seek_flags |= AVSEEK_FLAG_BYTE;
991 /* pause or resume the video */
992 static void stream_pause(VideoState *is)
994 is->paused = !is->paused;
996 is->video_current_pts = get_video_clock(is);
997 is->frame_timer += (av_gettime() - is->video_current_pts_time) / 1000000.0;
1001 /* called to display each frame */
1002 static void video_refresh_timer(void *opaque)
1004 VideoState *is = opaque;
1006 double actual_delay, delay, sync_threshold, ref_clock, diff;
1008 SubPicture *sp, *sp2;
1011 if (is->pictq_size == 0) {
1012 /* if no picture, need to wait */
1013 schedule_refresh(is, 1);
1015 /* dequeue the picture */
1016 vp = &is->pictq[is->pictq_rindex];
1018 /* update current video pts */
1019 is->video_current_pts = vp->pts;
1020 is->video_current_pts_time = av_gettime();
1022 /* compute nominal delay */
1023 delay = vp->pts - is->frame_last_pts;
1024 if (delay <= 0 || delay >= 2.0) {
1025 /* if incorrect delay, use previous one */
1026 delay = is->frame_last_delay;
1028 is->frame_last_delay = delay;
1029 is->frame_last_pts = vp->pts;
1031 /* update delay to follow master synchronisation source */
1032 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1033 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1034 /* if video is slave, we try to correct big delays by
1035 duplicating or deleting a frame */
1036 ref_clock = get_master_clock(is);
1037 diff = vp->pts - ref_clock;
1039 /* skip or repeat frame. We take into account the
1040 delay to compute the threshold. I still don't know
1041 if it is the best guess */
1042 sync_threshold = AV_SYNC_THRESHOLD;
1043 if (delay > sync_threshold)
1044 sync_threshold = delay;
1045 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1046 if (diff <= -sync_threshold)
1048 else if (diff >= sync_threshold)
1053 is->frame_timer += delay;
1054 /* compute the REAL delay (we need to do that to avoid
1056 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
1057 if (actual_delay < 0.010) {
1058 /* XXX: should skip picture */
1059 actual_delay = 0.010;
1061 /* launch timer for next picture */
1062 schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
1064 #if defined(DEBUG_SYNC)
1065 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1066 delay, actual_delay, vp->pts, -diff);
1069 if(is->subtitle_st) {
1070 if (is->subtitle_stream_changed) {
1071 SDL_LockMutex(is->subpq_mutex);
1073 while (is->subpq_size) {
1074 free_subpicture(&is->subpq[is->subpq_rindex]);
1076 /* update queue size and signal for next picture */
1077 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1078 is->subpq_rindex = 0;
1082 is->subtitle_stream_changed = 0;
1084 SDL_CondSignal(is->subpq_cond);
1085 SDL_UnlockMutex(is->subpq_mutex);
1087 if (is->subpq_size > 0) {
1088 sp = &is->subpq[is->subpq_rindex];
1090 if (is->subpq_size > 1)
1091 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1095 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1096 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1098 free_subpicture(sp);
1100 /* update queue size and signal for next picture */
1101 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1102 is->subpq_rindex = 0;
1104 SDL_LockMutex(is->subpq_mutex);
1106 SDL_CondSignal(is->subpq_cond);
1107 SDL_UnlockMutex(is->subpq_mutex);
1113 /* display picture */
1116 /* update queue size and signal for next picture */
1117 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1118 is->pictq_rindex = 0;
1120 SDL_LockMutex(is->pictq_mutex);
1122 SDL_CondSignal(is->pictq_cond);
1123 SDL_UnlockMutex(is->pictq_mutex);
1125 } else if (is->audio_st) {
1126 /* draw the next audio frame */
1128 schedule_refresh(is, 40);
1130 /* if only audio stream, then display the audio bars (better
1131 than nothing, just to test the implementation */
1133 /* display picture */
1136 schedule_refresh(is, 100);
1139 static int64_t last_time;
1141 int aqsize, vqsize, sqsize;
1144 cur_time = av_gettime();
1145 if (!last_time || (cur_time - last_time) >= 500 * 1000) {
1150 aqsize = is->audioq.size;
1152 vqsize = is->videoq.size;
1153 if (is->subtitle_st)
1154 sqsize = is->subtitleq.size;
1156 if (is->audio_st && is->video_st)
1157 av_diff = get_audio_clock(is) - get_video_clock(is);
1158 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r",
1159 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize);
1161 last_time = cur_time;
1166 /* allocate a picture (needs to do that in main thread to avoid
1167 potential locking problems */
1168 static void alloc_picture(void *opaque)
1170 VideoState *is = opaque;
1173 vp = &is->pictq[is->pictq_windex];
1176 SDL_FreeYUVOverlay(vp->bmp);
1179 /* XXX: use generic function */
1180 /* XXX: disable overlay if no hardware acceleration or if RGB format */
1181 switch(is->video_st->codec->pix_fmt) {
1182 case PIX_FMT_YUV420P:
1183 case PIX_FMT_YUV422P:
1184 case PIX_FMT_YUV444P:
1185 case PIX_FMT_YUYV422:
1186 case PIX_FMT_YUV410P:
1187 case PIX_FMT_YUV411P:
1195 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1196 is->video_st->codec->height,
1199 vp->width = is->video_st->codec->width;
1200 vp->height = is->video_st->codec->height;
1202 SDL_LockMutex(is->pictq_mutex);
1204 SDL_CondSignal(is->pictq_cond);
1205 SDL_UnlockMutex(is->pictq_mutex);
1210 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1212 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
1217 static struct SwsContext *img_convert_ctx;
1219 /* wait until we have space to put a new picture */
1220 SDL_LockMutex(is->pictq_mutex);
1221 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1222 !is->videoq.abort_request) {
1223 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1225 SDL_UnlockMutex(is->pictq_mutex);
1227 if (is->videoq.abort_request)
1230 vp = &is->pictq[is->pictq_windex];
1232 /* alloc or resize hardware picture buffer */
1234 vp->width != is->video_st->codec->width ||
1235 vp->height != is->video_st->codec->height) {
1240 /* the allocation must be done in the main thread to avoid
1242 event.type = FF_ALLOC_EVENT;
1243 event.user.data1 = is;
1244 SDL_PushEvent(&event);
1246 /* wait until the picture is allocated */
1247 SDL_LockMutex(is->pictq_mutex);
1248 while (!vp->allocated && !is->videoq.abort_request) {
1249 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1251 SDL_UnlockMutex(is->pictq_mutex);
1253 if (is->videoq.abort_request)
1257 /* if the frame is not skipped, then display it */
1259 /* get a pointer on the bitmap */
1260 SDL_LockYUVOverlay (vp->bmp);
1262 dst_pix_fmt = PIX_FMT_YUV420P;
1263 pict.data[0] = vp->bmp->pixels[0];
1264 pict.data[1] = vp->bmp->pixels[2];
1265 pict.data[2] = vp->bmp->pixels[1];
1267 pict.linesize[0] = vp->bmp->pitches[0];
1268 pict.linesize[1] = vp->bmp->pitches[2];
1269 pict.linesize[2] = vp->bmp->pitches[1];
1270 img_convert_ctx = sws_getCachedContext(img_convert_ctx,
1271 is->video_st->codec->width, is->video_st->codec->height,
1272 is->video_st->codec->pix_fmt,
1273 is->video_st->codec->width, is->video_st->codec->height,
1274 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1275 if (img_convert_ctx == NULL) {
1276 fprintf(stderr, "Cannot initialize the conversion context\n");
1279 sws_scale(img_convert_ctx, src_frame->data, src_frame->linesize,
1280 0, is->video_st->codec->height, pict.data, pict.linesize);
1281 /* update the bitmap content */
1282 SDL_UnlockYUVOverlay(vp->bmp);
1286 /* now we can update the picture count */
1287 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1288 is->pictq_windex = 0;
1289 SDL_LockMutex(is->pictq_mutex);
1291 SDL_UnlockMutex(is->pictq_mutex);
1297 * compute the exact PTS for the picture if it is omitted in the stream
1298 * @param pts1 the dts of the pkt / pts of the frame
1300 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
1302 double frame_delay, pts;
1307 /* update video clock with pts, if present */
1308 is->video_clock = pts;
1310 pts = is->video_clock;
1312 /* update video clock for next frame */
1313 frame_delay = av_q2d(is->video_st->codec->time_base);
1314 /* for MPEG2, the frame can be repeated, so we update the
1315 clock accordingly */
1316 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1317 is->video_clock += frame_delay;
1319 #if defined(DEBUG_SYNC) && 0
1322 if (src_frame->pict_type == FF_B_TYPE)
1324 else if (src_frame->pict_type == FF_I_TYPE)
1328 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1332 return queue_picture(is, src_frame, pts);
1335 static uint64_t global_video_pkt_pts= AV_NOPTS_VALUE;
1337 static int my_get_buffer(struct AVCodecContext *c, AVFrame *pic){
1338 int ret= avcodec_default_get_buffer(c, pic);
1339 uint64_t *pts= av_malloc(sizeof(uint64_t));
1340 *pts= global_video_pkt_pts;
1345 static void my_release_buffer(struct AVCodecContext *c, AVFrame *pic){
1346 if(pic) av_freep(&pic->opaque);
1347 avcodec_default_release_buffer(c, pic);
1350 static int video_thread(void *arg)
1352 VideoState *is = arg;
1353 AVPacket pkt1, *pkt = &pkt1;
1354 int len1, got_picture;
1355 AVFrame *frame= avcodec_alloc_frame();
1359 while (is->paused && !is->videoq.abort_request) {
1362 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1365 if(pkt->data == flush_pkt.data){
1366 avcodec_flush_buffers(is->video_st->codec);
1370 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1371 this packet, if any */
1372 global_video_pkt_pts= pkt->pts;
1373 len1 = avcodec_decode_video(is->video_st->codec,
1374 frame, &got_picture,
1375 pkt->data, pkt->size);
1377 if( (decoder_reorder_pts || pkt->dts == AV_NOPTS_VALUE)
1378 && frame->opaque && *(uint64_t*)frame->opaque != AV_NOPTS_VALUE)
1379 pts= *(uint64_t*)frame->opaque;
1380 else if(pkt->dts != AV_NOPTS_VALUE)
1384 pts *= av_q2d(is->video_st->time_base);
1389 if (output_picture2(is, frame, pts) < 0)
1392 av_free_packet(pkt);
1395 stream_pause(cur_stream);
1402 static int subtitle_thread(void *arg)
1404 VideoState *is = arg;
1406 AVPacket pkt1, *pkt = &pkt1;
1407 int len1, got_subtitle;
1410 int r, g, b, y, u, v, a;
1413 while (is->paused && !is->subtitleq.abort_request) {
1416 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1419 if(pkt->data == flush_pkt.data){
1420 avcodec_flush_buffers(is->subtitle_st->codec);
1423 SDL_LockMutex(is->subpq_mutex);
1424 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1425 !is->subtitleq.abort_request) {
1426 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1428 SDL_UnlockMutex(is->subpq_mutex);
1430 if (is->subtitleq.abort_request)
1433 sp = &is->subpq[is->subpq_windex];
1435 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1436 this packet, if any */
1438 if (pkt->pts != AV_NOPTS_VALUE)
1439 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1441 len1 = avcodec_decode_subtitle(is->subtitle_st->codec,
1442 &sp->sub, &got_subtitle,
1443 pkt->data, pkt->size);
1446 if (got_subtitle && sp->sub.format == 0) {
1449 for (i = 0; i < sp->sub.num_rects; i++)
1451 for (j = 0; j < sp->sub.rects[i].nb_colors; j++)
1453 RGBA_IN(r, g, b, a, sp->sub.rects[i].rgba_palette + j);
1454 y = RGB_TO_Y_CCIR(r, g, b);
1455 u = RGB_TO_U_CCIR(r, g, b, 0);
1456 v = RGB_TO_V_CCIR(r, g, b, 0);
1457 YUVA_OUT(sp->sub.rects[i].rgba_palette + j, y, u, v, a);
1461 /* now we can update the picture count */
1462 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1463 is->subpq_windex = 0;
1464 SDL_LockMutex(is->subpq_mutex);
1466 SDL_UnlockMutex(is->subpq_mutex);
1468 av_free_packet(pkt);
1471 // stream_pause(cur_stream);
1477 /* copy samples for viewing in editor window */
1478 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1480 int size, len, channels;
1482 channels = is->audio_st->codec->channels;
1484 size = samples_size / sizeof(short);
1486 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1489 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1491 is->sample_array_index += len;
1492 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1493 is->sample_array_index = 0;
1498 /* return the new audio buffer size (samples can be added or deleted
1499 to get better sync if video or external master clock) */
1500 static int synchronize_audio(VideoState *is, short *samples,
1501 int samples_size1, double pts)
1503 int n, samples_size;
1506 n = 2 * is->audio_st->codec->channels;
1507 samples_size = samples_size1;
1509 /* if not master, then we try to remove or add samples to correct the clock */
1510 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1511 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1512 double diff, avg_diff;
1513 int wanted_size, min_size, max_size, nb_samples;
1515 ref_clock = get_master_clock(is);
1516 diff = get_audio_clock(is) - ref_clock;
1518 if (diff < AV_NOSYNC_THRESHOLD) {
1519 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1520 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1521 /* not enough measures to have a correct estimate */
1522 is->audio_diff_avg_count++;
1524 /* estimate the A-V difference */
1525 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1527 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1528 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1529 nb_samples = samples_size / n;
1531 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1532 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1533 if (wanted_size < min_size)
1534 wanted_size = min_size;
1535 else if (wanted_size > max_size)
1536 wanted_size = max_size;
1538 /* add or remove samples to correction the synchro */
1539 if (wanted_size < samples_size) {
1540 /* remove samples */
1541 samples_size = wanted_size;
1542 } else if (wanted_size > samples_size) {
1543 uint8_t *samples_end, *q;
1547 nb = (samples_size - wanted_size);
1548 samples_end = (uint8_t *)samples + samples_size - n;
1549 q = samples_end + n;
1551 memcpy(q, samples_end, n);
1555 samples_size = wanted_size;
1559 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1560 diff, avg_diff, samples_size - samples_size1,
1561 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1565 /* too big difference : may be initial PTS errors, so
1567 is->audio_diff_avg_count = 0;
1568 is->audio_diff_cum = 0;
1572 return samples_size;
1575 /* decode one audio frame and returns its uncompressed size */
1576 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1578 AVPacket *pkt = &is->audio_pkt;
1579 AVCodecContext *dec= is->audio_st->codec;
1580 int n, len1, data_size;
1584 /* NOTE: the audio packet can contain several frames */
1585 while (is->audio_pkt_size > 0) {
1586 data_size = sizeof(is->audio_buf1);
1587 len1 = avcodec_decode_audio2(dec,
1588 (int16_t *)is->audio_buf1, &data_size,
1589 is->audio_pkt_data, is->audio_pkt_size);
1591 /* if error, we skip the frame */
1592 is->audio_pkt_size = 0;
1596 is->audio_pkt_data += len1;
1597 is->audio_pkt_size -= len1;
1601 if (dec->sample_fmt != is->audio_src_fmt) {
1602 if (is->reformat_ctx)
1603 av_audio_convert_free(is->reformat_ctx);
1604 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
1605 dec->sample_fmt, 1, NULL, 0);
1606 if (!is->reformat_ctx) {
1607 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
1608 avcodec_get_sample_fmt_name(dec->sample_fmt),
1609 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
1612 is->audio_src_fmt= dec->sample_fmt;
1615 if (is->reformat_ctx) {
1616 const void *ibuf[6]= {is->audio_buf1};
1617 void *obuf[6]= {is->audio_buf2};
1618 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
1619 int ostride[6]= {2};
1620 int len= data_size/istride[0];
1621 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
1622 printf("av_audio_convert() failed\n");
1625 is->audio_buf= is->audio_buf2;
1626 /* FIXME: existing code assume that data_size equals framesize*channels*2
1627 remove this legacy cruft */
1630 is->audio_buf= is->audio_buf1;
1633 /* if no pts, then compute it */
1634 pts = is->audio_clock;
1636 n = 2 * dec->channels;
1637 is->audio_clock += (double)data_size /
1638 (double)(n * dec->sample_rate);
1639 #if defined(DEBUG_SYNC)
1641 static double last_clock;
1642 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1643 is->audio_clock - last_clock,
1644 is->audio_clock, pts);
1645 last_clock = is->audio_clock;
1651 /* free the current packet */
1653 av_free_packet(pkt);
1655 if (is->paused || is->audioq.abort_request) {
1659 /* read next packet */
1660 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1662 if(pkt->data == flush_pkt.data){
1663 avcodec_flush_buffers(dec);
1667 is->audio_pkt_data = pkt->data;
1668 is->audio_pkt_size = pkt->size;
1670 /* if update the audio clock with the pts */
1671 if (pkt->pts != AV_NOPTS_VALUE) {
1672 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1677 /* get the current audio output buffer size, in samples. With SDL, we
1678 cannot have a precise information */
1679 static int audio_write_get_buf_size(VideoState *is)
1681 return is->audio_buf_size - is->audio_buf_index;
1685 /* prepare a new audio buffer */
1686 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1688 VideoState *is = opaque;
1689 int audio_size, len1;
1692 audio_callback_time = av_gettime();
1695 if (is->audio_buf_index >= is->audio_buf_size) {
1696 audio_size = audio_decode_frame(is, &pts);
1697 if (audio_size < 0) {
1698 /* if error, just output silence */
1699 is->audio_buf_size = 1024;
1700 memset(is->audio_buf, 0, is->audio_buf_size);
1703 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1704 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1706 is->audio_buf_size = audio_size;
1708 is->audio_buf_index = 0;
1710 len1 = is->audio_buf_size - is->audio_buf_index;
1713 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1716 is->audio_buf_index += len1;
1720 /* open a given stream. Return 0 if OK */
1721 static int stream_component_open(VideoState *is, int stream_index)
1723 AVFormatContext *ic = is->ic;
1724 AVCodecContext *enc;
1726 SDL_AudioSpec wanted_spec, spec;
1728 if (stream_index < 0 || stream_index >= ic->nb_streams)
1730 enc = ic->streams[stream_index]->codec;
1732 /* prepare audio output */
1733 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1734 if (enc->channels > 0) {
1735 enc->request_channels = FFMIN(2, enc->channels);
1737 enc->request_channels = 2;
1741 codec = avcodec_find_decoder(enc->codec_id);
1742 enc->debug_mv = debug_mv;
1744 enc->workaround_bugs = workaround_bugs;
1745 enc->lowres = lowres;
1746 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1747 enc->idct_algo= idct;
1748 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1749 enc->skip_frame= skip_frame;
1750 enc->skip_idct= skip_idct;
1751 enc->skip_loop_filter= skip_loop_filter;
1752 enc->error_resilience= error_resilience;
1753 enc->error_concealment= error_concealment;
1755 avcodec_open(enc, codec) < 0)
1758 /* prepare audio output */
1759 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1760 wanted_spec.freq = enc->sample_rate;
1761 wanted_spec.format = AUDIO_S16SYS;
1762 wanted_spec.channels = enc->channels;
1763 wanted_spec.silence = 0;
1764 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1765 wanted_spec.callback = sdl_audio_callback;
1766 wanted_spec.userdata = is;
1767 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1768 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1771 is->audio_hw_buf_size = spec.size;
1772 is->audio_src_fmt= SAMPLE_FMT_S16;
1776 avcodec_thread_init(enc, thread_count);
1777 enc->thread_count= thread_count;
1778 switch(enc->codec_type) {
1779 case CODEC_TYPE_AUDIO:
1780 is->audio_stream = stream_index;
1781 is->audio_st = ic->streams[stream_index];
1782 is->audio_buf_size = 0;
1783 is->audio_buf_index = 0;
1785 /* init averaging filter */
1786 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1787 is->audio_diff_avg_count = 0;
1788 /* since we do not have a precise anough audio fifo fullness,
1789 we correct audio sync only if larger than this threshold */
1790 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1792 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1793 packet_queue_init(&is->audioq);
1796 case CODEC_TYPE_VIDEO:
1797 is->video_stream = stream_index;
1798 is->video_st = ic->streams[stream_index];
1800 is->frame_last_delay = 40e-3;
1801 is->frame_timer = (double)av_gettime() / 1000000.0;
1802 is->video_current_pts_time = av_gettime();
1804 packet_queue_init(&is->videoq);
1805 is->video_tid = SDL_CreateThread(video_thread, is);
1807 enc-> get_buffer= my_get_buffer;
1808 enc->release_buffer= my_release_buffer;
1810 case CODEC_TYPE_SUBTITLE:
1811 is->subtitle_stream = stream_index;
1812 is->subtitle_st = ic->streams[stream_index];
1813 packet_queue_init(&is->subtitleq);
1815 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1823 static void stream_component_close(VideoState *is, int stream_index)
1825 AVFormatContext *ic = is->ic;
1826 AVCodecContext *enc;
1828 if (stream_index < 0 || stream_index >= ic->nb_streams)
1830 enc = ic->streams[stream_index]->codec;
1832 switch(enc->codec_type) {
1833 case CODEC_TYPE_AUDIO:
1834 packet_queue_abort(&is->audioq);
1838 packet_queue_end(&is->audioq);
1839 if (is->reformat_ctx)
1840 av_audio_convert_free(is->reformat_ctx);
1842 case CODEC_TYPE_VIDEO:
1843 packet_queue_abort(&is->videoq);
1845 /* note: we also signal this mutex to make sure we deblock the
1846 video thread in all cases */
1847 SDL_LockMutex(is->pictq_mutex);
1848 SDL_CondSignal(is->pictq_cond);
1849 SDL_UnlockMutex(is->pictq_mutex);
1851 SDL_WaitThread(is->video_tid, NULL);
1853 packet_queue_end(&is->videoq);
1855 case CODEC_TYPE_SUBTITLE:
1856 packet_queue_abort(&is->subtitleq);
1858 /* note: we also signal this mutex to make sure we deblock the
1859 video thread in all cases */
1860 SDL_LockMutex(is->subpq_mutex);
1861 is->subtitle_stream_changed = 1;
1863 SDL_CondSignal(is->subpq_cond);
1864 SDL_UnlockMutex(is->subpq_mutex);
1866 SDL_WaitThread(is->subtitle_tid, NULL);
1868 packet_queue_end(&is->subtitleq);
1875 switch(enc->codec_type) {
1876 case CODEC_TYPE_AUDIO:
1877 is->audio_st = NULL;
1878 is->audio_stream = -1;
1880 case CODEC_TYPE_VIDEO:
1881 is->video_st = NULL;
1882 is->video_stream = -1;
1884 case CODEC_TYPE_SUBTITLE:
1885 is->subtitle_st = NULL;
1886 is->subtitle_stream = -1;
1893 static void dump_stream_info(const AVFormatContext *s)
1896 fprintf(stderr, "Track: %d\n", s->track);
1897 if (s->title[0] != '\0')
1898 fprintf(stderr, "Title: %s\n", s->title);
1899 if (s->author[0] != '\0')
1900 fprintf(stderr, "Author: %s\n", s->author);
1901 if (s->copyright[0] != '\0')
1902 fprintf(stderr, "Copyright: %s\n", s->copyright);
1903 if (s->comment[0] != '\0')
1904 fprintf(stderr, "Comment: %s\n", s->comment);
1905 if (s->album[0] != '\0')
1906 fprintf(stderr, "Album: %s\n", s->album);
1908 fprintf(stderr, "Year: %d\n", s->year);
1909 if (s->genre[0] != '\0')
1910 fprintf(stderr, "Genre: %s\n", s->genre);
1913 /* since we have only one decoding thread, we can use a global
1914 variable instead of a thread local variable */
1915 static VideoState *global_video_state;
1917 static int decode_interrupt_cb(void)
1919 return (global_video_state && global_video_state->abort_request);
1922 /* this thread gets the stream from the disk or the network */
1923 static int decode_thread(void *arg)
1925 VideoState *is = arg;
1926 AVFormatContext *ic;
1927 int err, i, ret, video_index, audio_index;
1928 AVPacket pkt1, *pkt = &pkt1;
1929 AVFormatParameters params, *ap = ¶ms;
1933 is->video_stream = -1;
1934 is->audio_stream = -1;
1935 is->subtitle_stream = -1;
1937 global_video_state = is;
1938 url_set_interrupt_cb(decode_interrupt_cb);
1940 memset(ap, 0, sizeof(*ap));
1942 ap->width = frame_width;
1943 ap->height= frame_height;
1944 ap->time_base= (AVRational){1, 25};
1945 ap->pix_fmt = frame_pix_fmt;
1947 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1949 print_error(is->filename, err);
1956 ic->flags |= AVFMT_FLAG_GENPTS;
1958 err = av_find_stream_info(ic);
1960 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1965 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
1967 /* if seeking requested, we execute it */
1968 if (start_time != AV_NOPTS_VALUE) {
1971 timestamp = start_time;
1972 /* add the stream start time */
1973 if (ic->start_time != AV_NOPTS_VALUE)
1974 timestamp += ic->start_time;
1975 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
1977 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1978 is->filename, (double)timestamp / AV_TIME_BASE);
1982 for(i = 0; i < ic->nb_streams; i++) {
1983 AVCodecContext *enc = ic->streams[i]->codec;
1984 switch(enc->codec_type) {
1985 case CODEC_TYPE_AUDIO:
1986 if ((audio_index < 0 || wanted_audio_stream-- > 0) && !audio_disable)
1989 case CODEC_TYPE_VIDEO:
1990 if ((video_index < 0 || wanted_video_stream-- > 0) && !video_disable)
1998 dump_format(ic, 0, is->filename, 0);
1999 dump_stream_info(ic);
2002 /* open the streams */
2003 if (audio_index >= 0) {
2004 stream_component_open(is, audio_index);
2007 if (video_index >= 0) {
2008 stream_component_open(is, video_index);
2010 if (!display_disable)
2014 if (is->video_stream < 0 && is->audio_stream < 0) {
2015 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2021 if (is->abort_request)
2023 if (is->paused != is->last_paused) {
2024 is->last_paused = is->paused;
2030 #if defined(CONFIG_RTSP_DEMUXER) || defined(CONFIG_MMSH_PROTOCOL)
2032 (!strcmp(ic->iformat->name, "rtsp") ||
2033 (ic->pb && !strcmp(url_fileno(ic->pb)->prot->name, "mmsh")))) {
2034 /* wait 10 ms to avoid trying to get another packet */
2041 int stream_index= -1;
2042 int64_t seek_target= is->seek_pos;
2044 if (is-> video_stream >= 0) stream_index= is-> video_stream;
2045 else if(is-> audio_stream >= 0) stream_index= is-> audio_stream;
2046 else if(is->subtitle_stream >= 0) stream_index= is->subtitle_stream;
2048 if(stream_index>=0){
2049 seek_target= av_rescale_q(seek_target, AV_TIME_BASE_Q, ic->streams[stream_index]->time_base);
2052 ret = av_seek_frame(is->ic, stream_index, seek_target, is->seek_flags);
2054 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2056 if (is->audio_stream >= 0) {
2057 packet_queue_flush(&is->audioq);
2058 packet_queue_put(&is->audioq, &flush_pkt);
2060 if (is->subtitle_stream >= 0) {
2061 packet_queue_flush(&is->subtitleq);
2062 packet_queue_put(&is->subtitleq, &flush_pkt);
2064 if (is->video_stream >= 0) {
2065 packet_queue_flush(&is->videoq);
2066 packet_queue_put(&is->videoq, &flush_pkt);
2072 /* if the queue are full, no need to read more */
2073 if (is->audioq.size > MAX_AUDIOQ_SIZE ||
2074 is->videoq.size > MAX_VIDEOQ_SIZE ||
2075 is->subtitleq.size > MAX_SUBTITLEQ_SIZE ||
2081 ret = av_read_frame(ic, pkt);
2083 if (url_ferror(ic->pb) == 0) {
2084 SDL_Delay(100); /* wait for user event */
2089 if (pkt->stream_index == is->audio_stream) {
2090 packet_queue_put(&is->audioq, pkt);
2091 } else if (pkt->stream_index == is->video_stream) {
2092 packet_queue_put(&is->videoq, pkt);
2093 } else if (pkt->stream_index == is->subtitle_stream) {
2094 packet_queue_put(&is->subtitleq, pkt);
2096 av_free_packet(pkt);
2099 /* wait until the end */
2100 while (!is->abort_request) {
2106 /* disable interrupting */
2107 global_video_state = NULL;
2109 /* close each stream */
2110 if (is->audio_stream >= 0)
2111 stream_component_close(is, is->audio_stream);
2112 if (is->video_stream >= 0)
2113 stream_component_close(is, is->video_stream);
2114 if (is->subtitle_stream >= 0)
2115 stream_component_close(is, is->subtitle_stream);
2117 av_close_input_file(is->ic);
2118 is->ic = NULL; /* safety */
2120 url_set_interrupt_cb(NULL);
2125 event.type = FF_QUIT_EVENT;
2126 event.user.data1 = is;
2127 SDL_PushEvent(&event);
2132 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2136 is = av_mallocz(sizeof(VideoState));
2139 av_strlcpy(is->filename, filename, sizeof(is->filename));
2140 is->iformat = iformat;
2144 /* start video display */
2145 is->pictq_mutex = SDL_CreateMutex();
2146 is->pictq_cond = SDL_CreateCond();
2148 is->subpq_mutex = SDL_CreateMutex();
2149 is->subpq_cond = SDL_CreateCond();
2151 /* add the refresh timer to draw the picture */
2152 schedule_refresh(is, 40);
2154 is->av_sync_type = av_sync_type;
2155 is->parse_tid = SDL_CreateThread(decode_thread, is);
2156 if (!is->parse_tid) {
2163 static void stream_close(VideoState *is)
2167 /* XXX: use a special url_shutdown call to abort parse cleanly */
2168 is->abort_request = 1;
2169 SDL_WaitThread(is->parse_tid, NULL);
2171 /* free all pictures */
2172 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2175 SDL_FreeYUVOverlay(vp->bmp);
2179 SDL_DestroyMutex(is->pictq_mutex);
2180 SDL_DestroyCond(is->pictq_cond);
2181 SDL_DestroyMutex(is->subpq_mutex);
2182 SDL_DestroyCond(is->subpq_cond);
2185 static void stream_cycle_channel(VideoState *is, int codec_type)
2187 AVFormatContext *ic = is->ic;
2188 int start_index, stream_index;
2191 if (codec_type == CODEC_TYPE_VIDEO)
2192 start_index = is->video_stream;
2193 else if (codec_type == CODEC_TYPE_AUDIO)
2194 start_index = is->audio_stream;
2196 start_index = is->subtitle_stream;
2197 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2199 stream_index = start_index;
2201 if (++stream_index >= is->ic->nb_streams)
2203 if (codec_type == CODEC_TYPE_SUBTITLE)
2210 if (stream_index == start_index)
2212 st = ic->streams[stream_index];
2213 if (st->codec->codec_type == codec_type) {
2214 /* check that parameters are OK */
2215 switch(codec_type) {
2216 case CODEC_TYPE_AUDIO:
2217 if (st->codec->sample_rate != 0 &&
2218 st->codec->channels != 0)
2221 case CODEC_TYPE_VIDEO:
2222 case CODEC_TYPE_SUBTITLE:
2230 stream_component_close(is, start_index);
2231 stream_component_open(is, stream_index);
2235 static void toggle_full_screen(void)
2237 is_full_screen = !is_full_screen;
2238 if (!fs_screen_width) {
2239 /* use default SDL method */
2240 // SDL_WM_ToggleFullScreen(screen);
2242 video_open(cur_stream);
2245 static void toggle_pause(void)
2248 stream_pause(cur_stream);
2252 static void step_to_next_frame(void)
2255 /* if the stream is paused unpause it, then step */
2256 if (cur_stream->paused)
2257 stream_pause(cur_stream);
2262 static void do_exit(void)
2265 stream_close(cur_stream);
2274 static void toggle_audio_display(void)
2277 cur_stream->show_audio = !cur_stream->show_audio;
2281 /* handle an event sent by the GUI */
2282 static void event_loop(void)
2285 double incr, pos, frac;
2288 SDL_WaitEvent(&event);
2289 switch(event.type) {
2291 switch(event.key.keysym.sym) {
2297 toggle_full_screen();
2303 case SDLK_s: //S: Step to next frame
2304 step_to_next_frame();
2308 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2312 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2316 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2319 toggle_audio_display();
2334 if (seek_by_bytes) {
2335 pos = url_ftell(cur_stream->ic->pb);
2336 if (cur_stream->ic->bit_rate)
2337 incr *= cur_stream->ic->bit_rate / 60.0;
2341 stream_seek(cur_stream, pos, incr);
2343 pos = get_master_clock(cur_stream);
2345 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
2353 case SDL_MOUSEBUTTONDOWN:
2356 int tns, thh, tmm, tss;
2357 tns = cur_stream->ic->duration/1000000LL;
2359 tmm = (tns%3600)/60;
2361 frac = (double)event.button.x/(double)cur_stream->width;
2366 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2367 hh, mm, ss, thh, tmm, tss);
2368 stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
2371 case SDL_VIDEORESIZE:
2373 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2374 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2375 screen_width = cur_stream->width = event.resize.w;
2376 screen_height= cur_stream->height= event.resize.h;
2383 case FF_ALLOC_EVENT:
2384 video_open(event.user.data1);
2385 alloc_picture(event.user.data1);
2387 case FF_REFRESH_EVENT:
2388 video_refresh_timer(event.user.data1);
2396 static void opt_frame_size(const char *arg)
2398 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2399 fprintf(stderr, "Incorrect frame size\n");
2402 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2403 fprintf(stderr, "Frame size must be a multiple of 2\n");
2408 static int opt_width(const char *opt, const char *arg)
2410 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2414 static int opt_height(const char *opt, const char *arg)
2416 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2420 static void opt_format(const char *arg)
2422 file_iformat = av_find_input_format(arg);
2423 if (!file_iformat) {
2424 fprintf(stderr, "Unknown input format: %s\n", arg);
2429 static void opt_frame_pix_fmt(const char *arg)
2431 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2434 static int opt_sync(const char *opt, const char *arg)
2436 if (!strcmp(arg, "audio"))
2437 av_sync_type = AV_SYNC_AUDIO_MASTER;
2438 else if (!strcmp(arg, "video"))
2439 av_sync_type = AV_SYNC_VIDEO_MASTER;
2440 else if (!strcmp(arg, "ext"))
2441 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2443 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2449 static int opt_seek(const char *opt, const char *arg)
2451 start_time = parse_time_or_die(opt, arg, 1);
2455 static int opt_debug(const char *opt, const char *arg)
2457 av_log_set_level(99);
2458 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2462 static int opt_vismv(const char *opt, const char *arg)
2464 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2468 static int opt_thread_count(const char *opt, const char *arg)
2470 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2471 #if !defined(HAVE_THREADS)
2472 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2477 static const OptionDef options[] = {
2478 { "h", OPT_EXIT, {(void*)show_help}, "show help" },
2479 { "version", OPT_EXIT, {(void*)show_version}, "show version" },
2480 { "L", OPT_EXIT, {(void*)show_license}, "show license" },
2481 { "formats", OPT_EXIT, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
2482 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2483 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2484 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2485 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2486 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2487 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2488 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "", "" },
2489 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "", "" },
2490 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2491 { "bytes", OPT_BOOL, {(void*)&seek_by_bytes}, "seek by bytes" },
2492 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2493 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2494 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2495 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2496 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2497 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2498 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2499 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2500 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2501 { "drp", OPT_BOOL |OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts", ""},
2502 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2503 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2504 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2505 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2506 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2507 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_resilience}, "set error detection threshold (0-4)", "threshold" },
2508 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2509 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2510 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2514 static void show_help(void)
2516 printf("usage: ffplay [options] input_file\n"
2517 "Simple media player\n");
2519 show_help_options(options, "Main options:\n",
2521 show_help_options(options, "\nAdvanced options:\n",
2522 OPT_EXPERT, OPT_EXPERT);
2523 printf("\nWhile playing:\n"
2525 "f toggle full screen\n"
2527 "a cycle audio channel\n"
2528 "v cycle video channel\n"
2529 "t cycle subtitle channel\n"
2530 "w show audio waves\n"
2531 "left/right seek backward/forward 10 seconds\n"
2532 "down/up seek backward/forward 1 minute\n"
2533 "mouse click seek to percentage in file corresponding to fraction of width\n"
2537 static void opt_input_file(const char *filename)
2539 if (!strcmp(filename, "-"))
2541 input_filename = filename;
2544 /* Called from the main */
2545 int main(int argc, char **argv)
2549 /* register all codecs, demux and protocols */
2550 avcodec_register_all();
2551 avdevice_register_all();
2556 parse_options(argc, argv, options, opt_input_file);
2558 if (!input_filename) {
2563 if (display_disable) {
2566 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2567 #if !defined(__MINGW32__) && !defined(__APPLE__)
2568 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
2570 if (SDL_Init (flags)) {
2571 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2575 if (!display_disable) {
2576 #ifdef HAVE_SDL_VIDEO_SIZE
2577 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2578 fs_screen_width = vi->current_w;
2579 fs_screen_height = vi->current_h;
2583 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2584 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2585 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2586 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2588 av_init_packet(&flush_pkt);
2589 flush_pkt.data= "FLUSH";
2591 cur_stream = stream_open(input_filename, file_iformat);