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"
30 #include "libavcodec/opt.h"
35 #include <SDL_thread.h>
38 #undef main /* We don't want SDL to override our main() */
43 const char program_name[] = "FFplay";
44 const int program_birth_year = 2003;
48 #define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
49 #define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
50 #define MAX_SUBTITLEQ_SIZE (5 * 16 * 1024)
52 /* SDL audio buffer size, in samples. Should be small to have precise
53 A/V sync as SDL does not have hardware buffer fullness info. */
54 #define SDL_AUDIO_BUFFER_SIZE 1024
56 /* no AV sync correction is done if below the AV sync threshold */
57 #define AV_SYNC_THRESHOLD 0.01
58 /* no AV correction is done if too big error */
59 #define AV_NOSYNC_THRESHOLD 10.0
61 /* maximum audio speed change to get correct sync */
62 #define SAMPLE_CORRECTION_PERCENT_MAX 10
64 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
65 #define AUDIO_DIFF_AVG_NB 20
67 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
68 #define SAMPLE_ARRAY_SIZE (2*65536)
70 static int sws_flags = SWS_BICUBIC;
72 typedef struct PacketQueue {
73 AVPacketList *first_pkt, *last_pkt;
81 #define VIDEO_PICTURE_QUEUE_SIZE 1
82 #define SUBPICTURE_QUEUE_SIZE 4
84 typedef struct VideoPicture {
85 double pts; ///<presentation time stamp for this picture
87 int width, height; /* source height & width */
91 typedef struct SubPicture {
92 double pts; /* presentation time stamp for this picture */
97 AV_SYNC_AUDIO_MASTER, /* default choice */
99 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
102 typedef struct VideoState {
103 SDL_Thread *parse_tid;
104 SDL_Thread *video_tid;
105 AVInputFormat *iformat;
114 int dtg_active_format;
119 double external_clock; /* external clock base */
120 int64_t external_clock_time;
123 double audio_diff_cum; /* used for AV difference average computation */
124 double audio_diff_avg_coef;
125 double audio_diff_threshold;
126 int audio_diff_avg_count;
129 int audio_hw_buf_size;
130 /* samples output by the codec. we reserve more space for avsync
132 DECLARE_ALIGNED(16,uint8_t,audio_buf1[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]);
133 DECLARE_ALIGNED(16,uint8_t,audio_buf2[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2]);
135 unsigned int audio_buf_size; /* in bytes */
136 int audio_buf_index; /* in bytes */
138 uint8_t *audio_pkt_data;
140 enum SampleFormat audio_src_fmt;
141 AVAudioConvert *reformat_ctx;
143 int show_audio; /* if true, display audio samples */
144 int16_t sample_array[SAMPLE_ARRAY_SIZE];
145 int sample_array_index;
148 SDL_Thread *subtitle_tid;
150 int subtitle_stream_changed;
151 AVStream *subtitle_st;
152 PacketQueue subtitleq;
153 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
154 int subpq_size, subpq_rindex, subpq_windex;
155 SDL_mutex *subpq_mutex;
156 SDL_cond *subpq_cond;
159 double frame_last_pts;
160 double frame_last_delay;
161 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
165 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
166 int64_t video_current_pts_time; ///<time (av_gettime) at which we updated video_current_pts - used to have running video pts
167 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
168 int pictq_size, pictq_rindex, pictq_windex;
169 SDL_mutex *pictq_mutex;
170 SDL_cond *pictq_cond;
172 // QETimer *video_timer;
174 int width, height, xleft, ytop;
177 static void show_help(void);
178 static int audio_write_get_buf_size(VideoState *is);
180 /* options specified by the user */
181 static AVInputFormat *file_iformat;
182 static const char *input_filename;
183 static int fs_screen_width;
184 static int fs_screen_height;
185 static int screen_width = 0;
186 static int screen_height = 0;
187 static int frame_width = 0;
188 static int frame_height = 0;
189 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
190 static int audio_disable;
191 static int video_disable;
192 static int wanted_audio_stream= 0;
193 static int wanted_video_stream= 0;
194 static int seek_by_bytes;
195 static int display_disable;
196 static int show_status;
197 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
198 static int64_t start_time = AV_NOPTS_VALUE;
199 static int debug = 0;
200 static int debug_mv = 0;
202 static int thread_count = 1;
203 static int workaround_bugs = 1;
205 static int genpts = 0;
206 static int lowres = 0;
207 static int idct = FF_IDCT_AUTO;
208 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
209 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
210 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
211 static int error_recognition = FF_ER_CAREFUL;
212 static int error_concealment = 3;
213 static int decoder_reorder_pts= 0;
215 /* current context */
216 static int is_full_screen;
217 static VideoState *cur_stream;
218 static int64_t audio_callback_time;
220 static AVPacket flush_pkt;
222 #define FF_ALLOC_EVENT (SDL_USEREVENT)
223 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
224 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
226 static SDL_Surface *screen;
228 /* packet queue handling */
229 static void packet_queue_init(PacketQueue *q)
231 memset(q, 0, sizeof(PacketQueue));
232 q->mutex = SDL_CreateMutex();
233 q->cond = SDL_CreateCond();
236 static void packet_queue_flush(PacketQueue *q)
238 AVPacketList *pkt, *pkt1;
240 SDL_LockMutex(q->mutex);
241 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
243 av_free_packet(&pkt->pkt);
250 SDL_UnlockMutex(q->mutex);
253 static void packet_queue_end(PacketQueue *q)
255 packet_queue_flush(q);
256 SDL_DestroyMutex(q->mutex);
257 SDL_DestroyCond(q->cond);
260 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
264 /* duplicate the packet */
265 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
268 pkt1 = av_malloc(sizeof(AVPacketList));
275 SDL_LockMutex(q->mutex);
281 q->last_pkt->next = pkt1;
284 q->size += pkt1->pkt.size;
285 /* XXX: should duplicate packet data in DV case */
286 SDL_CondSignal(q->cond);
288 SDL_UnlockMutex(q->mutex);
292 static void packet_queue_abort(PacketQueue *q)
294 SDL_LockMutex(q->mutex);
296 q->abort_request = 1;
298 SDL_CondSignal(q->cond);
300 SDL_UnlockMutex(q->mutex);
303 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
304 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
309 SDL_LockMutex(q->mutex);
312 if (q->abort_request) {
319 q->first_pkt = pkt1->next;
323 q->size -= pkt1->pkt.size;
332 SDL_CondWait(q->cond, q->mutex);
335 SDL_UnlockMutex(q->mutex);
339 static inline void fill_rectangle(SDL_Surface *screen,
340 int x, int y, int w, int h, int color)
347 SDL_FillRect(screen, &rect, color);
351 /* draw only the border of a rectangle */
352 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
356 /* fill the background */
360 w2 = s->width - (x + w);
366 h2 = s->height - (y + h);
369 fill_rectangle(screen,
373 fill_rectangle(screen,
374 s->xleft + s->width - w2, s->ytop,
377 fill_rectangle(screen,
378 s->xleft + w1, s->ytop,
379 s->width - w1 - w2, h1,
381 fill_rectangle(screen,
382 s->xleft + w1, s->ytop + s->height - h2,
383 s->width - w1 - w2, h2,
391 #define ONE_HALF (1 << (SCALEBITS - 1))
392 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
394 #define RGB_TO_Y_CCIR(r, g, b) \
395 ((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
396 FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
398 #define RGB_TO_U_CCIR(r1, g1, b1, shift)\
399 (((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \
400 FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
402 #define RGB_TO_V_CCIR(r1, g1, b1, shift)\
403 (((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \
404 FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
406 #define ALPHA_BLEND(a, oldp, newp, s)\
407 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
409 #define RGBA_IN(r, g, b, a, s)\
411 unsigned int v = ((const uint32_t *)(s))[0];\
412 a = (v >> 24) & 0xff;\
413 r = (v >> 16) & 0xff;\
414 g = (v >> 8) & 0xff;\
418 #define YUVA_IN(y, u, v, a, s, pal)\
420 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
421 a = (val >> 24) & 0xff;\
422 y = (val >> 16) & 0xff;\
423 u = (val >> 8) & 0xff;\
427 #define YUVA_OUT(d, y, u, v, a)\
429 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
435 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
437 int wrap, wrap3, width2, skip2;
438 int y, u, v, a, u1, v1, a1, w, h;
439 uint8_t *lum, *cb, *cr;
442 int dstx, dsty, dstw, dsth;
444 dstw = av_clip(rect->w, 0, imgw);
445 dsth = av_clip(rect->h, 0, imgh);
446 dstx = av_clip(rect->x, 0, imgw - dstw);
447 dsty = av_clip(rect->y, 0, imgh - dsth);
448 lum = dst->data[0] + dsty * dst->linesize[0];
449 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
450 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
452 width2 = (dstw + 1) >> 1;
454 wrap = dst->linesize[0];
455 wrap3 = rect->pict.linesize[0];
456 p = rect->pict.data[0];
457 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
465 YUVA_IN(y, u, v, a, p, pal);
466 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
467 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
468 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
474 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
475 YUVA_IN(y, u, v, a, p, pal);
479 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
481 YUVA_IN(y, u, v, a, p + BPP, pal);
485 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
486 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
487 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
494 YUVA_IN(y, u, v, a, p, pal);
495 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
496 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
497 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
501 p += wrap3 - dstw * BPP;
502 lum += wrap - dstw - dstx;
503 cb += dst->linesize[1] - width2 - skip2;
504 cr += dst->linesize[2] - width2 - skip2;
506 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
512 YUVA_IN(y, u, v, a, p, pal);
516 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
519 YUVA_IN(y, u, v, a, p, pal);
523 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
524 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
525 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
531 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
532 YUVA_IN(y, u, v, a, p, pal);
536 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
538 YUVA_IN(y, u, v, a, p + BPP, pal);
542 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
546 YUVA_IN(y, u, v, a, p, pal);
550 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
552 YUVA_IN(y, u, v, a, p + BPP, pal);
556 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
558 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
559 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
563 p += -wrap3 + 2 * BPP;
567 YUVA_IN(y, u, v, a, p, pal);
571 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
574 YUVA_IN(y, u, v, a, p, pal);
578 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
579 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
580 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
586 p += wrap3 + (wrap3 - dstw * BPP);
587 lum += wrap + (wrap - dstw - dstx);
588 cb += dst->linesize[1] - width2 - skip2;
589 cr += dst->linesize[2] - width2 - skip2;
591 /* handle odd height */
598 YUVA_IN(y, u, v, a, p, pal);
599 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
600 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
601 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
607 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
608 YUVA_IN(y, u, v, a, p, pal);
612 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
614 YUVA_IN(y, u, v, a, p + BPP, pal);
618 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
619 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
620 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
627 YUVA_IN(y, u, v, a, p, pal);
628 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
629 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
630 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
635 static void free_subpicture(SubPicture *sp)
639 for (i = 0; i < sp->sub.num_rects; i++)
641 av_freep(&sp->sub.rects[i]->pict.data[0]);
642 av_freep(&sp->sub.rects[i]->pict.data[1]);
643 av_freep(&sp->sub.rects[i]);
646 av_free(sp->sub.rects);
648 memset(&sp->sub, 0, sizeof(AVSubtitle));
651 static void video_image_display(VideoState *is)
657 int width, height, x, y;
661 vp = &is->pictq[is->pictq_rindex];
663 /* XXX: use variable in the frame */
664 if (is->video_st->sample_aspect_ratio.num)
665 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
666 else if (is->video_st->codec->sample_aspect_ratio.num)
667 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
670 if (aspect_ratio <= 0.0)
672 aspect_ratio *= (float)is->video_st->codec->width / is->video_st->codec->height;
673 /* if an active format is indicated, then it overrides the
676 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
677 is->dtg_active_format = is->video_st->codec->dtg_active_format;
678 printf("dtg_active_format=%d\n", is->dtg_active_format);
682 switch(is->video_st->codec->dtg_active_format) {
683 case FF_DTG_AFD_SAME:
688 aspect_ratio = 4.0 / 3.0;
690 case FF_DTG_AFD_16_9:
691 aspect_ratio = 16.0 / 9.0;
693 case FF_DTG_AFD_14_9:
694 aspect_ratio = 14.0 / 9.0;
696 case FF_DTG_AFD_4_3_SP_14_9:
697 aspect_ratio = 14.0 / 9.0;
699 case FF_DTG_AFD_16_9_SP_14_9:
700 aspect_ratio = 14.0 / 9.0;
702 case FF_DTG_AFD_SP_4_3:
703 aspect_ratio = 4.0 / 3.0;
710 if (is->subpq_size > 0)
712 sp = &is->subpq[is->subpq_rindex];
714 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
716 SDL_LockYUVOverlay (vp->bmp);
718 pict.data[0] = vp->bmp->pixels[0];
719 pict.data[1] = vp->bmp->pixels[2];
720 pict.data[2] = vp->bmp->pixels[1];
722 pict.linesize[0] = vp->bmp->pitches[0];
723 pict.linesize[1] = vp->bmp->pitches[2];
724 pict.linesize[2] = vp->bmp->pitches[1];
726 for (i = 0; i < sp->sub.num_rects; i++)
727 blend_subrect(&pict, sp->sub.rects[i],
728 vp->bmp->w, vp->bmp->h);
730 SDL_UnlockYUVOverlay (vp->bmp);
736 /* XXX: we suppose the screen has a 1.0 pixel ratio */
738 width = ((int)rint(height * aspect_ratio)) & ~1;
739 if (width > is->width) {
741 height = ((int)rint(width / aspect_ratio)) & ~1;
743 x = (is->width - width) / 2;
744 y = (is->height - height) / 2;
745 if (!is->no_background) {
746 /* fill the background */
747 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
749 is->no_background = 0;
751 rect.x = is->xleft + x;
752 rect.y = is->ytop + y;
755 SDL_DisplayYUVOverlay(vp->bmp, &rect);
758 fill_rectangle(screen,
759 is->xleft, is->ytop, is->width, is->height,
760 QERGB(0x00, 0x00, 0x00));
765 static inline int compute_mod(int a, int b)
774 static void video_audio_display(VideoState *s)
776 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
777 int ch, channels, h, h2, bgcolor, fgcolor;
780 /* compute display index : center on currently output samples */
781 channels = s->audio_st->codec->channels;
782 nb_display_channels = channels;
785 delay = audio_write_get_buf_size(s);
788 /* to be more precise, we take into account the time spent since
789 the last buffer computation */
790 if (audio_callback_time) {
791 time_diff = av_gettime() - audio_callback_time;
792 delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
795 delay -= s->width / 2;
796 if (delay < s->width)
799 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
802 for(i=0; i<1000; i+=channels){
803 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
804 int a= s->sample_array[idx];
805 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
806 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
807 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
809 if(h<score && (b^c)<0){
815 s->last_i_start = i_start;
817 i_start = s->last_i_start;
820 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
821 fill_rectangle(screen,
822 s->xleft, s->ytop, s->width, s->height,
825 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
827 /* total height for one channel */
828 h = s->height / nb_display_channels;
829 /* graph height / 2 */
831 for(ch = 0;ch < nb_display_channels; ch++) {
833 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
834 for(x = 0; x < s->width; x++) {
835 y = (s->sample_array[i] * h2) >> 15;
842 fill_rectangle(screen,
843 s->xleft + x, ys, 1, y,
846 if (i >= SAMPLE_ARRAY_SIZE)
847 i -= SAMPLE_ARRAY_SIZE;
851 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
853 for(ch = 1;ch < nb_display_channels; ch++) {
854 y = s->ytop + ch * h;
855 fill_rectangle(screen,
856 s->xleft, y, s->width, 1,
859 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
862 static int video_open(VideoState *is){
863 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
866 if(is_full_screen) flags |= SDL_FULLSCREEN;
867 else flags |= SDL_RESIZABLE;
869 if (is_full_screen && fs_screen_width) {
871 h = fs_screen_height;
872 } else if(!is_full_screen && screen_width){
875 }else if (is->video_st && is->video_st->codec->width){
876 w = is->video_st->codec->width;
877 h = is->video_st->codec->height;
883 screen = SDL_SetVideoMode(w, h, 0, flags);
885 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
886 screen = SDL_SetVideoMode(w, h, 24, flags);
889 fprintf(stderr, "SDL: could not set video mode - exiting\n");
892 SDL_WM_SetCaption("FFplay", "FFplay");
894 is->width = screen->w;
895 is->height = screen->h;
900 /* display the current picture, if any */
901 static void video_display(VideoState *is)
904 video_open(cur_stream);
905 if (is->audio_st && is->show_audio)
906 video_audio_display(is);
907 else if (is->video_st)
908 video_image_display(is);
911 static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
914 event.type = FF_REFRESH_EVENT;
915 event.user.data1 = opaque;
916 SDL_PushEvent(&event);
917 return 0; /* 0 means stop timer */
920 /* schedule a video refresh in 'delay' ms */
921 static void schedule_refresh(VideoState *is, int delay)
923 if(!delay) delay=1; //SDL seems to be buggy when the delay is 0
924 SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
927 /* get the current audio clock value */
928 static double get_audio_clock(VideoState *is)
931 int hw_buf_size, bytes_per_sec;
932 pts = is->audio_clock;
933 hw_buf_size = audio_write_get_buf_size(is);
936 bytes_per_sec = is->audio_st->codec->sample_rate *
937 2 * is->audio_st->codec->channels;
940 pts -= (double)hw_buf_size / bytes_per_sec;
944 /* get the current video clock value */
945 static double get_video_clock(VideoState *is)
951 delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
953 return is->video_current_pts + delta;
956 /* get the current external clock value */
957 static double get_external_clock(VideoState *is)
961 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
964 /* get the current master clock value */
965 static double get_master_clock(VideoState *is)
969 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
971 val = get_video_clock(is);
973 val = get_audio_clock(is);
974 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
976 val = get_audio_clock(is);
978 val = get_video_clock(is);
980 val = get_external_clock(is);
985 /* seek in the stream */
986 static void stream_seek(VideoState *is, int64_t pos, int rel)
990 is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0;
992 is->seek_flags |= AVSEEK_FLAG_BYTE;
997 /* pause or resume the video */
998 static void stream_pause(VideoState *is)
1000 is->paused = !is->paused;
1002 is->video_current_pts = get_video_clock(is);
1003 is->frame_timer += (av_gettime() - is->video_current_pts_time) / 1000000.0;
1007 /* called to display each frame */
1008 static void video_refresh_timer(void *opaque)
1010 VideoState *is = opaque;
1012 double actual_delay, delay, sync_threshold, ref_clock, diff;
1014 SubPicture *sp, *sp2;
1017 if (is->pictq_size == 0) {
1018 /* if no picture, need to wait */
1019 schedule_refresh(is, 1);
1021 /* dequeue the picture */
1022 vp = &is->pictq[is->pictq_rindex];
1024 /* update current video pts */
1025 is->video_current_pts = vp->pts;
1026 is->video_current_pts_time = av_gettime();
1028 /* compute nominal delay */
1029 delay = vp->pts - is->frame_last_pts;
1030 if (delay <= 0 || delay >= 10.0) {
1031 /* if incorrect delay, use previous one */
1032 delay = is->frame_last_delay;
1034 is->frame_last_delay = delay;
1035 is->frame_last_pts = vp->pts;
1037 /* update delay to follow master synchronisation source */
1038 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1039 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1040 /* if video is slave, we try to correct big delays by
1041 duplicating or deleting a frame */
1042 ref_clock = get_master_clock(is);
1043 diff = vp->pts - ref_clock;
1045 /* skip or repeat frame. We take into account the
1046 delay to compute the threshold. I still don't know
1047 if it is the best guess */
1048 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1049 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1050 if (diff <= -sync_threshold)
1052 else if (diff >= sync_threshold)
1057 is->frame_timer += delay;
1058 /* compute the REAL delay (we need to do that to avoid
1060 actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
1061 if (actual_delay < 0.010) {
1062 /* XXX: should skip picture */
1063 actual_delay = 0.010;
1065 /* launch timer for next picture */
1066 schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
1068 #if defined(DEBUG_SYNC)
1069 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1070 delay, actual_delay, vp->pts, -diff);
1073 if(is->subtitle_st) {
1074 if (is->subtitle_stream_changed) {
1075 SDL_LockMutex(is->subpq_mutex);
1077 while (is->subpq_size) {
1078 free_subpicture(&is->subpq[is->subpq_rindex]);
1080 /* update queue size and signal for next picture */
1081 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1082 is->subpq_rindex = 0;
1086 is->subtitle_stream_changed = 0;
1088 SDL_CondSignal(is->subpq_cond);
1089 SDL_UnlockMutex(is->subpq_mutex);
1091 if (is->subpq_size > 0) {
1092 sp = &is->subpq[is->subpq_rindex];
1094 if (is->subpq_size > 1)
1095 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1099 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1100 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1102 free_subpicture(sp);
1104 /* update queue size and signal for next picture */
1105 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1106 is->subpq_rindex = 0;
1108 SDL_LockMutex(is->subpq_mutex);
1110 SDL_CondSignal(is->subpq_cond);
1111 SDL_UnlockMutex(is->subpq_mutex);
1117 /* display picture */
1120 /* update queue size and signal for next picture */
1121 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1122 is->pictq_rindex = 0;
1124 SDL_LockMutex(is->pictq_mutex);
1126 SDL_CondSignal(is->pictq_cond);
1127 SDL_UnlockMutex(is->pictq_mutex);
1129 } else if (is->audio_st) {
1130 /* draw the next audio frame */
1132 schedule_refresh(is, 40);
1134 /* if only audio stream, then display the audio bars (better
1135 than nothing, just to test the implementation */
1137 /* display picture */
1140 schedule_refresh(is, 100);
1143 static int64_t last_time;
1145 int aqsize, vqsize, sqsize;
1148 cur_time = av_gettime();
1149 if (!last_time || (cur_time - last_time) >= 500 * 1000) {
1154 aqsize = is->audioq.size;
1156 vqsize = is->videoq.size;
1157 if (is->subtitle_st)
1158 sqsize = is->subtitleq.size;
1160 if (is->audio_st && is->video_st)
1161 av_diff = get_audio_clock(is) - get_video_clock(is);
1162 printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r",
1163 get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize);
1165 last_time = cur_time;
1170 /* allocate a picture (needs to do that in main thread to avoid
1171 potential locking problems */
1172 static void alloc_picture(void *opaque)
1174 VideoState *is = opaque;
1177 vp = &is->pictq[is->pictq_windex];
1180 SDL_FreeYUVOverlay(vp->bmp);
1183 /* XXX: use generic function */
1184 /* XXX: disable overlay if no hardware acceleration or if RGB format */
1185 switch(is->video_st->codec->pix_fmt) {
1186 case PIX_FMT_YUV420P:
1187 case PIX_FMT_YUV422P:
1188 case PIX_FMT_YUV444P:
1189 case PIX_FMT_YUYV422:
1190 case PIX_FMT_YUV410P:
1191 case PIX_FMT_YUV411P:
1199 vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
1200 is->video_st->codec->height,
1203 vp->width = is->video_st->codec->width;
1204 vp->height = is->video_st->codec->height;
1206 SDL_LockMutex(is->pictq_mutex);
1208 SDL_CondSignal(is->pictq_cond);
1209 SDL_UnlockMutex(is->pictq_mutex);
1214 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1216 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
1221 static struct SwsContext *img_convert_ctx;
1223 /* wait until we have space to put a new picture */
1224 SDL_LockMutex(is->pictq_mutex);
1225 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1226 !is->videoq.abort_request) {
1227 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1229 SDL_UnlockMutex(is->pictq_mutex);
1231 if (is->videoq.abort_request)
1234 vp = &is->pictq[is->pictq_windex];
1236 /* alloc or resize hardware picture buffer */
1238 vp->width != is->video_st->codec->width ||
1239 vp->height != is->video_st->codec->height) {
1244 /* the allocation must be done in the main thread to avoid
1246 event.type = FF_ALLOC_EVENT;
1247 event.user.data1 = is;
1248 SDL_PushEvent(&event);
1250 /* wait until the picture is allocated */
1251 SDL_LockMutex(is->pictq_mutex);
1252 while (!vp->allocated && !is->videoq.abort_request) {
1253 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1255 SDL_UnlockMutex(is->pictq_mutex);
1257 if (is->videoq.abort_request)
1261 /* if the frame is not skipped, then display it */
1263 /* get a pointer on the bitmap */
1264 SDL_LockYUVOverlay (vp->bmp);
1266 dst_pix_fmt = PIX_FMT_YUV420P;
1267 pict.data[0] = vp->bmp->pixels[0];
1268 pict.data[1] = vp->bmp->pixels[2];
1269 pict.data[2] = vp->bmp->pixels[1];
1271 pict.linesize[0] = vp->bmp->pitches[0];
1272 pict.linesize[1] = vp->bmp->pitches[2];
1273 pict.linesize[2] = vp->bmp->pitches[1];
1274 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1275 img_convert_ctx = sws_getCachedContext(img_convert_ctx,
1276 is->video_st->codec->width, is->video_st->codec->height,
1277 is->video_st->codec->pix_fmt,
1278 is->video_st->codec->width, is->video_st->codec->height,
1279 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1280 if (img_convert_ctx == NULL) {
1281 fprintf(stderr, "Cannot initialize the conversion context\n");
1284 sws_scale(img_convert_ctx, src_frame->data, src_frame->linesize,
1285 0, is->video_st->codec->height, pict.data, pict.linesize);
1286 /* update the bitmap content */
1287 SDL_UnlockYUVOverlay(vp->bmp);
1291 /* now we can update the picture count */
1292 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1293 is->pictq_windex = 0;
1294 SDL_LockMutex(is->pictq_mutex);
1296 SDL_UnlockMutex(is->pictq_mutex);
1302 * compute the exact PTS for the picture if it is omitted in the stream
1303 * @param pts1 the dts of the pkt / pts of the frame
1305 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
1307 double frame_delay, pts;
1312 /* update video clock with pts, if present */
1313 is->video_clock = pts;
1315 pts = is->video_clock;
1317 /* update video clock for next frame */
1318 frame_delay = av_q2d(is->video_st->codec->time_base);
1319 /* for MPEG2, the frame can be repeated, so we update the
1320 clock accordingly */
1321 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1322 is->video_clock += frame_delay;
1324 #if defined(DEBUG_SYNC) && 0
1327 if (src_frame->pict_type == FF_B_TYPE)
1329 else if (src_frame->pict_type == FF_I_TYPE)
1333 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1337 return queue_picture(is, src_frame, pts);
1340 static int video_thread(void *arg)
1342 VideoState *is = arg;
1343 AVPacket pkt1, *pkt = &pkt1;
1344 int len1, got_picture;
1345 AVFrame *frame= avcodec_alloc_frame();
1349 while (is->paused && !is->videoq.abort_request) {
1352 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1355 if(pkt->data == flush_pkt.data){
1356 avcodec_flush_buffers(is->video_st->codec);
1360 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1361 this packet, if any */
1362 is->video_st->codec->reordered_opaque= pkt->pts;
1363 len1 = avcodec_decode_video(is->video_st->codec,
1364 frame, &got_picture,
1365 pkt->data, pkt->size);
1367 if( (decoder_reorder_pts || pkt->dts == AV_NOPTS_VALUE)
1368 && frame->reordered_opaque != AV_NOPTS_VALUE)
1369 pts= frame->reordered_opaque;
1370 else if(pkt->dts != AV_NOPTS_VALUE)
1374 pts *= av_q2d(is->video_st->time_base);
1379 if (output_picture2(is, frame, pts) < 0)
1382 av_free_packet(pkt);
1385 stream_pause(cur_stream);
1392 static int subtitle_thread(void *arg)
1394 VideoState *is = arg;
1396 AVPacket pkt1, *pkt = &pkt1;
1397 int len1, got_subtitle;
1400 int r, g, b, y, u, v, a;
1403 while (is->paused && !is->subtitleq.abort_request) {
1406 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1409 if(pkt->data == flush_pkt.data){
1410 avcodec_flush_buffers(is->subtitle_st->codec);
1413 SDL_LockMutex(is->subpq_mutex);
1414 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1415 !is->subtitleq.abort_request) {
1416 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1418 SDL_UnlockMutex(is->subpq_mutex);
1420 if (is->subtitleq.abort_request)
1423 sp = &is->subpq[is->subpq_windex];
1425 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1426 this packet, if any */
1428 if (pkt->pts != AV_NOPTS_VALUE)
1429 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1431 len1 = avcodec_decode_subtitle(is->subtitle_st->codec,
1432 &sp->sub, &got_subtitle,
1433 pkt->data, pkt->size);
1436 if (got_subtitle && sp->sub.format == 0) {
1439 for (i = 0; i < sp->sub.num_rects; i++)
1441 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1443 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1444 y = RGB_TO_Y_CCIR(r, g, b);
1445 u = RGB_TO_U_CCIR(r, g, b, 0);
1446 v = RGB_TO_V_CCIR(r, g, b, 0);
1447 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1451 /* now we can update the picture count */
1452 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1453 is->subpq_windex = 0;
1454 SDL_LockMutex(is->subpq_mutex);
1456 SDL_UnlockMutex(is->subpq_mutex);
1458 av_free_packet(pkt);
1461 // stream_pause(cur_stream);
1467 /* copy samples for viewing in editor window */
1468 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1470 int size, len, channels;
1472 channels = is->audio_st->codec->channels;
1474 size = samples_size / sizeof(short);
1476 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1479 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1481 is->sample_array_index += len;
1482 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1483 is->sample_array_index = 0;
1488 /* return the new audio buffer size (samples can be added or deleted
1489 to get better sync if video or external master clock) */
1490 static int synchronize_audio(VideoState *is, short *samples,
1491 int samples_size1, double pts)
1493 int n, samples_size;
1496 n = 2 * is->audio_st->codec->channels;
1497 samples_size = samples_size1;
1499 /* if not master, then we try to remove or add samples to correct the clock */
1500 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1501 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1502 double diff, avg_diff;
1503 int wanted_size, min_size, max_size, nb_samples;
1505 ref_clock = get_master_clock(is);
1506 diff = get_audio_clock(is) - ref_clock;
1508 if (diff < AV_NOSYNC_THRESHOLD) {
1509 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1510 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1511 /* not enough measures to have a correct estimate */
1512 is->audio_diff_avg_count++;
1514 /* estimate the A-V difference */
1515 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1517 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1518 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1519 nb_samples = samples_size / n;
1521 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1522 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1523 if (wanted_size < min_size)
1524 wanted_size = min_size;
1525 else if (wanted_size > max_size)
1526 wanted_size = max_size;
1528 /* add or remove samples to correction the synchro */
1529 if (wanted_size < samples_size) {
1530 /* remove samples */
1531 samples_size = wanted_size;
1532 } else if (wanted_size > samples_size) {
1533 uint8_t *samples_end, *q;
1537 nb = (samples_size - wanted_size);
1538 samples_end = (uint8_t *)samples + samples_size - n;
1539 q = samples_end + n;
1541 memcpy(q, samples_end, n);
1545 samples_size = wanted_size;
1549 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1550 diff, avg_diff, samples_size - samples_size1,
1551 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1555 /* too big difference : may be initial PTS errors, so
1557 is->audio_diff_avg_count = 0;
1558 is->audio_diff_cum = 0;
1562 return samples_size;
1565 /* decode one audio frame and returns its uncompressed size */
1566 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1568 AVPacket *pkt = &is->audio_pkt;
1569 AVCodecContext *dec= is->audio_st->codec;
1570 int n, len1, data_size;
1574 /* NOTE: the audio packet can contain several frames */
1575 while (is->audio_pkt_size > 0) {
1576 data_size = sizeof(is->audio_buf1);
1577 len1 = avcodec_decode_audio2(dec,
1578 (int16_t *)is->audio_buf1, &data_size,
1579 is->audio_pkt_data, is->audio_pkt_size);
1581 /* if error, we skip the frame */
1582 is->audio_pkt_size = 0;
1586 is->audio_pkt_data += len1;
1587 is->audio_pkt_size -= len1;
1591 if (dec->sample_fmt != is->audio_src_fmt) {
1592 if (is->reformat_ctx)
1593 av_audio_convert_free(is->reformat_ctx);
1594 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
1595 dec->sample_fmt, 1, NULL, 0);
1596 if (!is->reformat_ctx) {
1597 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
1598 avcodec_get_sample_fmt_name(dec->sample_fmt),
1599 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
1602 is->audio_src_fmt= dec->sample_fmt;
1605 if (is->reformat_ctx) {
1606 const void *ibuf[6]= {is->audio_buf1};
1607 void *obuf[6]= {is->audio_buf2};
1608 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
1609 int ostride[6]= {2};
1610 int len= data_size/istride[0];
1611 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
1612 printf("av_audio_convert() failed\n");
1615 is->audio_buf= is->audio_buf2;
1616 /* FIXME: existing code assume that data_size equals framesize*channels*2
1617 remove this legacy cruft */
1620 is->audio_buf= is->audio_buf1;
1623 /* if no pts, then compute it */
1624 pts = is->audio_clock;
1626 n = 2 * dec->channels;
1627 is->audio_clock += (double)data_size /
1628 (double)(n * dec->sample_rate);
1629 #if defined(DEBUG_SYNC)
1631 static double last_clock;
1632 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
1633 is->audio_clock - last_clock,
1634 is->audio_clock, pts);
1635 last_clock = is->audio_clock;
1641 /* free the current packet */
1643 av_free_packet(pkt);
1645 if (is->paused || is->audioq.abort_request) {
1649 /* read next packet */
1650 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
1652 if(pkt->data == flush_pkt.data){
1653 avcodec_flush_buffers(dec);
1657 is->audio_pkt_data = pkt->data;
1658 is->audio_pkt_size = pkt->size;
1660 /* if update the audio clock with the pts */
1661 if (pkt->pts != AV_NOPTS_VALUE) {
1662 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
1667 /* get the current audio output buffer size, in samples. With SDL, we
1668 cannot have a precise information */
1669 static int audio_write_get_buf_size(VideoState *is)
1671 return is->audio_buf_size - is->audio_buf_index;
1675 /* prepare a new audio buffer */
1676 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
1678 VideoState *is = opaque;
1679 int audio_size, len1;
1682 audio_callback_time = av_gettime();
1685 if (is->audio_buf_index >= is->audio_buf_size) {
1686 audio_size = audio_decode_frame(is, &pts);
1687 if (audio_size < 0) {
1688 /* if error, just output silence */
1689 is->audio_buf = is->audio_buf1;
1690 is->audio_buf_size = 1024;
1691 memset(is->audio_buf, 0, is->audio_buf_size);
1694 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
1695 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
1697 is->audio_buf_size = audio_size;
1699 is->audio_buf_index = 0;
1701 len1 = is->audio_buf_size - is->audio_buf_index;
1704 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
1707 is->audio_buf_index += len1;
1711 /* open a given stream. Return 0 if OK */
1712 static int stream_component_open(VideoState *is, int stream_index)
1714 AVFormatContext *ic = is->ic;
1715 AVCodecContext *enc;
1717 SDL_AudioSpec wanted_spec, spec;
1719 if (stream_index < 0 || stream_index >= ic->nb_streams)
1721 enc = ic->streams[stream_index]->codec;
1723 /* prepare audio output */
1724 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1725 if (enc->channels > 0) {
1726 enc->request_channels = FFMIN(2, enc->channels);
1728 enc->request_channels = 2;
1732 codec = avcodec_find_decoder(enc->codec_id);
1733 enc->debug_mv = debug_mv;
1735 enc->workaround_bugs = workaround_bugs;
1736 enc->lowres = lowres;
1737 if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
1738 enc->idct_algo= idct;
1739 if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
1740 enc->skip_frame= skip_frame;
1741 enc->skip_idct= skip_idct;
1742 enc->skip_loop_filter= skip_loop_filter;
1743 enc->error_recognition= error_recognition;
1744 enc->error_concealment= error_concealment;
1746 set_context_opts(enc, avctx_opts[enc->codec_type], 0);
1749 avcodec_open(enc, codec) < 0)
1752 /* prepare audio output */
1753 if (enc->codec_type == CODEC_TYPE_AUDIO) {
1754 wanted_spec.freq = enc->sample_rate;
1755 wanted_spec.format = AUDIO_S16SYS;
1756 wanted_spec.channels = enc->channels;
1757 wanted_spec.silence = 0;
1758 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
1759 wanted_spec.callback = sdl_audio_callback;
1760 wanted_spec.userdata = is;
1761 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
1762 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
1765 is->audio_hw_buf_size = spec.size;
1766 is->audio_src_fmt= SAMPLE_FMT_S16;
1770 avcodec_thread_init(enc, thread_count);
1771 enc->thread_count= thread_count;
1772 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
1773 switch(enc->codec_type) {
1774 case CODEC_TYPE_AUDIO:
1775 is->audio_stream = stream_index;
1776 is->audio_st = ic->streams[stream_index];
1777 is->audio_buf_size = 0;
1778 is->audio_buf_index = 0;
1780 /* init averaging filter */
1781 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
1782 is->audio_diff_avg_count = 0;
1783 /* since we do not have a precise anough audio fifo fullness,
1784 we correct audio sync only if larger than this threshold */
1785 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
1787 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
1788 packet_queue_init(&is->audioq);
1791 case CODEC_TYPE_VIDEO:
1792 is->video_stream = stream_index;
1793 is->video_st = ic->streams[stream_index];
1795 is->frame_last_delay = 40e-3;
1796 is->frame_timer = (double)av_gettime() / 1000000.0;
1797 is->video_current_pts_time = av_gettime();
1799 packet_queue_init(&is->videoq);
1800 is->video_tid = SDL_CreateThread(video_thread, is);
1802 case CODEC_TYPE_SUBTITLE:
1803 is->subtitle_stream = stream_index;
1804 is->subtitle_st = ic->streams[stream_index];
1805 packet_queue_init(&is->subtitleq);
1807 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
1815 static void stream_component_close(VideoState *is, int stream_index)
1817 AVFormatContext *ic = is->ic;
1818 AVCodecContext *enc;
1820 if (stream_index < 0 || stream_index >= ic->nb_streams)
1822 enc = ic->streams[stream_index]->codec;
1824 switch(enc->codec_type) {
1825 case CODEC_TYPE_AUDIO:
1826 packet_queue_abort(&is->audioq);
1830 packet_queue_end(&is->audioq);
1831 if (is->reformat_ctx)
1832 av_audio_convert_free(is->reformat_ctx);
1834 case CODEC_TYPE_VIDEO:
1835 packet_queue_abort(&is->videoq);
1837 /* note: we also signal this mutex to make sure we deblock the
1838 video thread in all cases */
1839 SDL_LockMutex(is->pictq_mutex);
1840 SDL_CondSignal(is->pictq_cond);
1841 SDL_UnlockMutex(is->pictq_mutex);
1843 SDL_WaitThread(is->video_tid, NULL);
1845 packet_queue_end(&is->videoq);
1847 case CODEC_TYPE_SUBTITLE:
1848 packet_queue_abort(&is->subtitleq);
1850 /* note: we also signal this mutex to make sure we deblock the
1851 video thread in all cases */
1852 SDL_LockMutex(is->subpq_mutex);
1853 is->subtitle_stream_changed = 1;
1855 SDL_CondSignal(is->subpq_cond);
1856 SDL_UnlockMutex(is->subpq_mutex);
1858 SDL_WaitThread(is->subtitle_tid, NULL);
1860 packet_queue_end(&is->subtitleq);
1866 ic->streams[stream_index]->discard = AVDISCARD_ALL;
1868 switch(enc->codec_type) {
1869 case CODEC_TYPE_AUDIO:
1870 is->audio_st = NULL;
1871 is->audio_stream = -1;
1873 case CODEC_TYPE_VIDEO:
1874 is->video_st = NULL;
1875 is->video_stream = -1;
1877 case CODEC_TYPE_SUBTITLE:
1878 is->subtitle_st = NULL;
1879 is->subtitle_stream = -1;
1886 static void dump_stream_info(const AVFormatContext *s)
1889 fprintf(stderr, "Track: %d\n", s->track);
1890 if (s->title[0] != '\0')
1891 fprintf(stderr, "Title: %s\n", s->title);
1892 if (s->author[0] != '\0')
1893 fprintf(stderr, "Author: %s\n", s->author);
1894 if (s->copyright[0] != '\0')
1895 fprintf(stderr, "Copyright: %s\n", s->copyright);
1896 if (s->comment[0] != '\0')
1897 fprintf(stderr, "Comment: %s\n", s->comment);
1898 if (s->album[0] != '\0')
1899 fprintf(stderr, "Album: %s\n", s->album);
1901 fprintf(stderr, "Year: %d\n", s->year);
1902 if (s->genre[0] != '\0')
1903 fprintf(stderr, "Genre: %s\n", s->genre);
1906 /* since we have only one decoding thread, we can use a global
1907 variable instead of a thread local variable */
1908 static VideoState *global_video_state;
1910 static int decode_interrupt_cb(void)
1912 return (global_video_state && global_video_state->abort_request);
1915 /* this thread gets the stream from the disk or the network */
1916 static int decode_thread(void *arg)
1918 VideoState *is = arg;
1919 AVFormatContext *ic;
1920 int err, i, ret, video_index, audio_index;
1921 AVPacket pkt1, *pkt = &pkt1;
1922 AVFormatParameters params, *ap = ¶ms;
1926 is->video_stream = -1;
1927 is->audio_stream = -1;
1928 is->subtitle_stream = -1;
1930 global_video_state = is;
1931 url_set_interrupt_cb(decode_interrupt_cb);
1933 memset(ap, 0, sizeof(*ap));
1935 ap->width = frame_width;
1936 ap->height= frame_height;
1937 ap->time_base= (AVRational){1, 25};
1938 ap->pix_fmt = frame_pix_fmt;
1940 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
1942 print_error(is->filename, err);
1949 ic->flags |= AVFMT_FLAG_GENPTS;
1951 err = av_find_stream_info(ic);
1953 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
1958 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
1960 /* if seeking requested, we execute it */
1961 if (start_time != AV_NOPTS_VALUE) {
1964 timestamp = start_time;
1965 /* add the stream start time */
1966 if (ic->start_time != AV_NOPTS_VALUE)
1967 timestamp += ic->start_time;
1968 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
1970 fprintf(stderr, "%s: could not seek to position %0.3f\n",
1971 is->filename, (double)timestamp / AV_TIME_BASE);
1975 for(i = 0; i < ic->nb_streams; i++) {
1976 AVCodecContext *enc = ic->streams[i]->codec;
1977 ic->streams[i]->discard = AVDISCARD_ALL;
1978 switch(enc->codec_type) {
1979 case CODEC_TYPE_AUDIO:
1980 if ((audio_index < 0 || wanted_audio_stream-- > 0) && !audio_disable)
1983 case CODEC_TYPE_VIDEO:
1984 if ((video_index < 0 || wanted_video_stream-- > 0) && !video_disable)
1992 dump_format(ic, 0, is->filename, 0);
1993 dump_stream_info(ic);
1996 /* open the streams */
1997 if (audio_index >= 0) {
1998 stream_component_open(is, audio_index);
2001 if (video_index >= 0) {
2002 stream_component_open(is, video_index);
2004 if (!display_disable)
2008 if (is->video_stream < 0 && is->audio_stream < 0) {
2009 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2015 if (is->abort_request)
2017 if (is->paused != is->last_paused) {
2018 is->last_paused = is->paused;
2024 #if CONFIG_RTSP_DEMUXER
2025 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2026 /* wait 10 ms to avoid trying to get another packet */
2033 int stream_index= -1;
2034 int64_t seek_target= is->seek_pos;
2036 if (is-> video_stream >= 0) stream_index= is-> video_stream;
2037 else if(is-> audio_stream >= 0) stream_index= is-> audio_stream;
2038 else if(is->subtitle_stream >= 0) stream_index= is->subtitle_stream;
2040 if(stream_index>=0){
2041 seek_target= av_rescale_q(seek_target, AV_TIME_BASE_Q, ic->streams[stream_index]->time_base);
2044 ret = av_seek_frame(is->ic, stream_index, seek_target, is->seek_flags);
2046 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2048 if (is->audio_stream >= 0) {
2049 packet_queue_flush(&is->audioq);
2050 packet_queue_put(&is->audioq, &flush_pkt);
2052 if (is->subtitle_stream >= 0) {
2053 packet_queue_flush(&is->subtitleq);
2054 packet_queue_put(&is->subtitleq, &flush_pkt);
2056 if (is->video_stream >= 0) {
2057 packet_queue_flush(&is->videoq);
2058 packet_queue_put(&is->videoq, &flush_pkt);
2064 /* if the queue are full, no need to read more */
2065 if (is->audioq.size > MAX_AUDIOQ_SIZE ||
2066 is->videoq.size > MAX_VIDEOQ_SIZE ||
2067 is->subtitleq.size > MAX_SUBTITLEQ_SIZE) {
2072 if(url_feof(ic->pb)) {
2073 av_init_packet(pkt);
2076 pkt->stream_index= is->video_stream;
2077 packet_queue_put(&is->videoq, pkt);
2080 ret = av_read_frame(ic, pkt);
2082 if (url_ferror(ic->pb) == 0) {
2083 SDL_Delay(100); /* wait for user event */
2088 if (pkt->stream_index == is->audio_stream) {
2089 packet_queue_put(&is->audioq, pkt);
2090 } else if (pkt->stream_index == is->video_stream) {
2091 packet_queue_put(&is->videoq, pkt);
2092 } else if (pkt->stream_index == is->subtitle_stream) {
2093 packet_queue_put(&is->subtitleq, pkt);
2095 av_free_packet(pkt);
2098 /* wait until the end */
2099 while (!is->abort_request) {
2105 /* disable interrupting */
2106 global_video_state = NULL;
2108 /* close each stream */
2109 if (is->audio_stream >= 0)
2110 stream_component_close(is, is->audio_stream);
2111 if (is->video_stream >= 0)
2112 stream_component_close(is, is->video_stream);
2113 if (is->subtitle_stream >= 0)
2114 stream_component_close(is, is->subtitle_stream);
2116 av_close_input_file(is->ic);
2117 is->ic = NULL; /* safety */
2119 url_set_interrupt_cb(NULL);
2124 event.type = FF_QUIT_EVENT;
2125 event.user.data1 = is;
2126 SDL_PushEvent(&event);
2131 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2135 is = av_mallocz(sizeof(VideoState));
2138 av_strlcpy(is->filename, filename, sizeof(is->filename));
2139 is->iformat = iformat;
2143 /* start video display */
2144 is->pictq_mutex = SDL_CreateMutex();
2145 is->pictq_cond = SDL_CreateCond();
2147 is->subpq_mutex = SDL_CreateMutex();
2148 is->subpq_cond = SDL_CreateCond();
2150 /* add the refresh timer to draw the picture */
2151 schedule_refresh(is, 40);
2153 is->av_sync_type = av_sync_type;
2154 is->parse_tid = SDL_CreateThread(decode_thread, is);
2155 if (!is->parse_tid) {
2162 static void stream_close(VideoState *is)
2166 /* XXX: use a special url_shutdown call to abort parse cleanly */
2167 is->abort_request = 1;
2168 SDL_WaitThread(is->parse_tid, NULL);
2170 /* free all pictures */
2171 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2174 SDL_FreeYUVOverlay(vp->bmp);
2178 SDL_DestroyMutex(is->pictq_mutex);
2179 SDL_DestroyCond(is->pictq_cond);
2180 SDL_DestroyMutex(is->subpq_mutex);
2181 SDL_DestroyCond(is->subpq_cond);
2184 static void stream_cycle_channel(VideoState *is, int codec_type)
2186 AVFormatContext *ic = is->ic;
2187 int start_index, stream_index;
2190 if (codec_type == CODEC_TYPE_VIDEO)
2191 start_index = is->video_stream;
2192 else if (codec_type == CODEC_TYPE_AUDIO)
2193 start_index = is->audio_stream;
2195 start_index = is->subtitle_stream;
2196 if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
2198 stream_index = start_index;
2200 if (++stream_index >= is->ic->nb_streams)
2202 if (codec_type == CODEC_TYPE_SUBTITLE)
2209 if (stream_index == start_index)
2211 st = ic->streams[stream_index];
2212 if (st->codec->codec_type == codec_type) {
2213 /* check that parameters are OK */
2214 switch(codec_type) {
2215 case CODEC_TYPE_AUDIO:
2216 if (st->codec->sample_rate != 0 &&
2217 st->codec->channels != 0)
2220 case CODEC_TYPE_VIDEO:
2221 case CODEC_TYPE_SUBTITLE:
2229 stream_component_close(is, start_index);
2230 stream_component_open(is, stream_index);
2234 static void toggle_full_screen(void)
2236 is_full_screen = !is_full_screen;
2237 if (!fs_screen_width) {
2238 /* use default SDL method */
2239 // SDL_WM_ToggleFullScreen(screen);
2241 video_open(cur_stream);
2244 static void toggle_pause(void)
2247 stream_pause(cur_stream);
2251 static void step_to_next_frame(void)
2254 /* if the stream is paused unpause it, then step */
2255 if (cur_stream->paused)
2256 stream_pause(cur_stream);
2261 static void do_exit(void)
2264 stream_close(cur_stream);
2273 static void toggle_audio_display(void)
2276 cur_stream->show_audio = !cur_stream->show_audio;
2280 /* handle an event sent by the GUI */
2281 static void event_loop(void)
2284 double incr, pos, frac;
2287 SDL_WaitEvent(&event);
2288 switch(event.type) {
2290 switch(event.key.keysym.sym) {
2296 toggle_full_screen();
2302 case SDLK_s: //S: Step to next frame
2303 step_to_next_frame();
2307 stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
2311 stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
2315 stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
2318 toggle_audio_display();
2333 if (seek_by_bytes) {
2334 pos = url_ftell(cur_stream->ic->pb);
2335 if (cur_stream->ic->bit_rate)
2336 incr *= cur_stream->ic->bit_rate / 60.0;
2340 stream_seek(cur_stream, pos, incr);
2342 pos = get_master_clock(cur_stream);
2344 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
2352 case SDL_MOUSEBUTTONDOWN:
2355 int tns, thh, tmm, tss;
2356 tns = cur_stream->ic->duration/1000000LL;
2358 tmm = (tns%3600)/60;
2360 frac = (double)event.button.x/(double)cur_stream->width;
2365 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2366 hh, mm, ss, thh, tmm, tss);
2367 stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
2370 case SDL_VIDEORESIZE:
2372 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2373 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2374 screen_width = cur_stream->width = event.resize.w;
2375 screen_height= cur_stream->height= event.resize.h;
2382 case FF_ALLOC_EVENT:
2383 video_open(event.user.data1);
2384 alloc_picture(event.user.data1);
2386 case FF_REFRESH_EVENT:
2387 video_refresh_timer(event.user.data1);
2395 static void opt_frame_size(const char *arg)
2397 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2398 fprintf(stderr, "Incorrect frame size\n");
2401 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2402 fprintf(stderr, "Frame size must be a multiple of 2\n");
2407 static int opt_width(const char *opt, const char *arg)
2409 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2413 static int opt_height(const char *opt, const char *arg)
2415 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2419 static void opt_format(const char *arg)
2421 file_iformat = av_find_input_format(arg);
2422 if (!file_iformat) {
2423 fprintf(stderr, "Unknown input format: %s\n", arg);
2428 static void opt_frame_pix_fmt(const char *arg)
2430 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2433 static int opt_sync(const char *opt, const char *arg)
2435 if (!strcmp(arg, "audio"))
2436 av_sync_type = AV_SYNC_AUDIO_MASTER;
2437 else if (!strcmp(arg, "video"))
2438 av_sync_type = AV_SYNC_VIDEO_MASTER;
2439 else if (!strcmp(arg, "ext"))
2440 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2442 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2448 static int opt_seek(const char *opt, const char *arg)
2450 start_time = parse_time_or_die(opt, arg, 1);
2454 static int opt_debug(const char *opt, const char *arg)
2456 av_log_set_level(99);
2457 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2461 static int opt_vismv(const char *opt, const char *arg)
2463 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2467 static int opt_thread_count(const char *opt, const char *arg)
2469 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2471 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2476 static const OptionDef options[] = {
2477 { "h", OPT_EXIT, {(void*)show_help}, "show help" },
2478 { "version", OPT_EXIT, {(void*)show_version}, "show version" },
2479 { "L", OPT_EXIT, {(void*)show_license}, "show license" },
2480 { "formats", OPT_EXIT, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
2481 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
2482 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
2483 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2484 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2485 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2486 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2487 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_audio_stream}, "", "" },
2488 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_video_stream}, "", "" },
2489 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2490 { "bytes", OPT_BOOL, {(void*)&seek_by_bytes}, "seek by bytes" },
2491 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2492 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2493 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2494 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2495 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2496 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2497 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2498 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2499 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2500 { "drp", OPT_BOOL |OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts", ""},
2501 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2502 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2503 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2504 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2505 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2506 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2507 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2508 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2509 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2510 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
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();
2554 for(i=0; i<CODEC_TYPE_NB; i++){
2555 avctx_opts[i]= avcodec_alloc_context2(i);
2557 avformat_opts = av_alloc_format_context();
2558 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
2562 parse_options(argc, argv, options, opt_input_file);
2564 if (!input_filename) {
2565 fprintf(stderr, "An input file must be specified\n");
2569 if (display_disable) {
2572 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
2573 #if !defined(__MINGW32__) && !defined(__APPLE__)
2574 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
2576 if (SDL_Init (flags)) {
2577 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
2581 if (!display_disable) {
2582 #if HAVE_SDL_VIDEO_SIZE
2583 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2584 fs_screen_width = vi->current_w;
2585 fs_screen_height = vi->current_h;
2589 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
2590 SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
2591 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
2592 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
2594 av_init_packet(&flush_pkt);
2595 flush_pkt.data= "FLUSH";
2597 cur_stream = stream_open(input_filename, file_iformat);