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
26 #include "libavutil/avstring.h"
27 #include "libavutil/colorspace.h"
28 #include "libavutil/pixdesc.h"
29 #include "libavformat/avformat.h"
30 #include "libavdevice/avdevice.h"
31 #include "libswscale/swscale.h"
32 #include "libavcodec/audioconvert.h"
33 #include "libavcodec/opt.h"
34 #include "libavcodec/avfft.h"
37 # include "libavfilter/avfilter.h"
38 # include "libavfilter/avfiltergraph.h"
39 # include "libavfilter/graphparser.h"
45 #include <SDL_thread.h>
48 #undef main /* We don't want SDL to override our main() */
54 const char program_name[] = "FFplay";
55 const int program_birth_year = 2003;
59 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
60 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
63 /* SDL audio buffer size, in samples. Should be small to have precise
64 A/V sync as SDL does not have hardware buffer fullness info. */
65 #define SDL_AUDIO_BUFFER_SIZE 1024
67 /* no AV sync correction is done if below the AV sync threshold */
68 #define AV_SYNC_THRESHOLD 0.01
69 /* no AV correction is done if too big error */
70 #define AV_NOSYNC_THRESHOLD 10.0
72 #define FRAME_SKIP_FACTOR 0.05
74 /* maximum audio speed change to get correct sync */
75 #define SAMPLE_CORRECTION_PERCENT_MAX 10
77 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
78 #define AUDIO_DIFF_AVG_NB 20
80 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
81 #define SAMPLE_ARRAY_SIZE (2*65536)
83 static int sws_flags = SWS_BICUBIC;
85 typedef struct PacketQueue {
86 AVPacketList *first_pkt, *last_pkt;
94 #define VIDEO_PICTURE_QUEUE_SIZE 2
95 #define SUBPICTURE_QUEUE_SIZE 4
97 typedef struct VideoPicture {
98 double pts; ///<presentation time stamp for this picture
99 double target_clock; ///<av_gettime() time at which this should be displayed ideally
100 int64_t pos; ///<byte position in file
102 int width, height; /* source height & width */
104 enum PixelFormat pix_fmt;
107 AVFilterPicRef *picref;
111 typedef struct SubPicture {
112 double pts; /* presentation time stamp for this picture */
117 AV_SYNC_AUDIO_MASTER, /* default choice */
118 AV_SYNC_VIDEO_MASTER,
119 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
122 typedef struct VideoState {
123 SDL_Thread *parse_tid;
124 SDL_Thread *video_tid;
125 SDL_Thread *refresh_tid;
126 AVInputFormat *iformat;
135 int read_pause_return;
137 int dtg_active_format;
142 double external_clock; /* external clock base */
143 int64_t external_clock_time;
146 double audio_diff_cum; /* used for AV difference average computation */
147 double audio_diff_avg_coef;
148 double audio_diff_threshold;
149 int audio_diff_avg_count;
152 int audio_hw_buf_size;
153 /* samples output by the codec. we reserve more space for avsync
155 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
156 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
158 unsigned int audio_buf_size; /* in bytes */
159 int audio_buf_index; /* in bytes */
160 AVPacket audio_pkt_temp;
162 enum SampleFormat audio_src_fmt;
163 AVAudioConvert *reformat_ctx;
165 int show_audio; /* if true, display audio samples */
166 int16_t sample_array[SAMPLE_ARRAY_SIZE];
167 int sample_array_index;
171 FFTSample *rdft_data;
174 SDL_Thread *subtitle_tid;
176 int subtitle_stream_changed;
177 AVStream *subtitle_st;
178 PacketQueue subtitleq;
179 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
180 int subpq_size, subpq_rindex, subpq_windex;
181 SDL_mutex *subpq_mutex;
182 SDL_cond *subpq_cond;
185 double frame_last_pts;
186 double frame_last_delay;
187 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
191 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
192 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
193 int64_t video_current_pos; ///<current displayed file pos
194 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
195 int pictq_size, pictq_rindex, pictq_windex;
196 SDL_mutex *pictq_mutex;
197 SDL_cond *pictq_cond;
199 struct SwsContext *img_convert_ctx;
202 // QETimer *video_timer;
204 int width, height, xleft, ytop;
208 int64_t last_dts_for_fault_detection;
209 int64_t last_pts_for_fault_detection;
212 AVFilterContext *out_video_filter; ///<the last filter in the video chain
216 float skip_frames_index;
220 static void show_help(void);
221 static int audio_write_get_buf_size(VideoState *is);
223 /* options specified by the user */
224 static AVInputFormat *file_iformat;
225 static const char *input_filename;
226 static const char *window_title;
227 static int fs_screen_width;
228 static int fs_screen_height;
229 static int screen_width = 0;
230 static int screen_height = 0;
231 static int frame_width = 0;
232 static int frame_height = 0;
233 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
234 static int audio_disable;
235 static int video_disable;
236 static int wanted_stream[AVMEDIA_TYPE_NB]={
237 [AVMEDIA_TYPE_AUDIO]=-1,
238 [AVMEDIA_TYPE_VIDEO]=-1,
239 [AVMEDIA_TYPE_SUBTITLE]=-1,
241 static int seek_by_bytes=-1;
242 static int display_disable;
243 static int show_status = 1;
244 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
245 static int64_t start_time = AV_NOPTS_VALUE;
246 static int64_t duration = AV_NOPTS_VALUE;
247 static int debug = 0;
248 static int debug_mv = 0;
250 static int thread_count = 1;
251 static int workaround_bugs = 1;
253 static int genpts = 0;
254 static int lowres = 0;
255 static int idct = FF_IDCT_AUTO;
256 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
257 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
258 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
259 static int error_recognition = FF_ER_CAREFUL;
260 static int error_concealment = 3;
261 static int decoder_reorder_pts= -1;
263 static int exit_on_keydown;
264 static int exit_on_mousedown;
266 static int framedrop=1;
268 static int rdftspeed=20;
270 static char *vfilters = NULL;
273 /* current context */
274 static int is_full_screen;
275 static VideoState *cur_stream;
276 static int64_t audio_callback_time;
278 static AVPacket flush_pkt;
280 #define FF_ALLOC_EVENT (SDL_USEREVENT)
281 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
282 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
284 static SDL_Surface *screen;
286 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
288 /* packet queue handling */
289 static void packet_queue_init(PacketQueue *q)
291 memset(q, 0, sizeof(PacketQueue));
292 q->mutex = SDL_CreateMutex();
293 q->cond = SDL_CreateCond();
294 packet_queue_put(q, &flush_pkt);
297 static void packet_queue_flush(PacketQueue *q)
299 AVPacketList *pkt, *pkt1;
301 SDL_LockMutex(q->mutex);
302 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
304 av_free_packet(&pkt->pkt);
311 SDL_UnlockMutex(q->mutex);
314 static void packet_queue_end(PacketQueue *q)
316 packet_queue_flush(q);
317 SDL_DestroyMutex(q->mutex);
318 SDL_DestroyCond(q->cond);
321 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
325 /* duplicate the packet */
326 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
329 pkt1 = av_malloc(sizeof(AVPacketList));
336 SDL_LockMutex(q->mutex);
342 q->last_pkt->next = pkt1;
345 q->size += pkt1->pkt.size + sizeof(*pkt1);
346 /* XXX: should duplicate packet data in DV case */
347 SDL_CondSignal(q->cond);
349 SDL_UnlockMutex(q->mutex);
353 static void packet_queue_abort(PacketQueue *q)
355 SDL_LockMutex(q->mutex);
357 q->abort_request = 1;
359 SDL_CondSignal(q->cond);
361 SDL_UnlockMutex(q->mutex);
364 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
365 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
370 SDL_LockMutex(q->mutex);
373 if (q->abort_request) {
380 q->first_pkt = pkt1->next;
384 q->size -= pkt1->pkt.size + sizeof(*pkt1);
393 SDL_CondWait(q->cond, q->mutex);
396 SDL_UnlockMutex(q->mutex);
400 static inline void fill_rectangle(SDL_Surface *screen,
401 int x, int y, int w, int h, int color)
408 SDL_FillRect(screen, &rect, color);
412 /* draw only the border of a rectangle */
413 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
417 /* fill the background */
421 w2 = s->width - (x + w);
427 h2 = s->height - (y + h);
430 fill_rectangle(screen,
434 fill_rectangle(screen,
435 s->xleft + s->width - w2, s->ytop,
438 fill_rectangle(screen,
439 s->xleft + w1, s->ytop,
440 s->width - w1 - w2, h1,
442 fill_rectangle(screen,
443 s->xleft + w1, s->ytop + s->height - h2,
444 s->width - w1 - w2, h2,
449 #define ALPHA_BLEND(a, oldp, newp, s)\
450 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
452 #define RGBA_IN(r, g, b, a, s)\
454 unsigned int v = ((const uint32_t *)(s))[0];\
455 a = (v >> 24) & 0xff;\
456 r = (v >> 16) & 0xff;\
457 g = (v >> 8) & 0xff;\
461 #define YUVA_IN(y, u, v, a, s, pal)\
463 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
464 a = (val >> 24) & 0xff;\
465 y = (val >> 16) & 0xff;\
466 u = (val >> 8) & 0xff;\
470 #define YUVA_OUT(d, y, u, v, a)\
472 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
478 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
480 int wrap, wrap3, width2, skip2;
481 int y, u, v, a, u1, v1, a1, w, h;
482 uint8_t *lum, *cb, *cr;
485 int dstx, dsty, dstw, dsth;
487 dstw = av_clip(rect->w, 0, imgw);
488 dsth = av_clip(rect->h, 0, imgh);
489 dstx = av_clip(rect->x, 0, imgw - dstw);
490 dsty = av_clip(rect->y, 0, imgh - dsth);
491 lum = dst->data[0] + dsty * dst->linesize[0];
492 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
493 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
495 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
497 wrap = dst->linesize[0];
498 wrap3 = rect->pict.linesize[0];
499 p = rect->pict.data[0];
500 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
508 YUVA_IN(y, u, v, a, p, pal);
509 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
510 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
511 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
517 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
518 YUVA_IN(y, u, v, a, p, pal);
522 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
524 YUVA_IN(y, u, v, a, p + BPP, pal);
528 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
529 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
530 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
537 YUVA_IN(y, u, v, a, p, pal);
538 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
539 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
540 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
544 p += wrap3 - dstw * BPP;
545 lum += wrap - dstw - dstx;
546 cb += dst->linesize[1] - width2 - skip2;
547 cr += dst->linesize[2] - width2 - skip2;
549 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
555 YUVA_IN(y, u, v, a, p, pal);
559 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
562 YUVA_IN(y, u, v, a, p, pal);
566 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
567 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
568 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
574 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
575 YUVA_IN(y, u, v, a, p, pal);
579 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
581 YUVA_IN(y, u, v, a, p + BPP, pal);
585 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
589 YUVA_IN(y, u, v, a, p, pal);
593 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
595 YUVA_IN(y, u, v, a, p + BPP, pal);
599 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
601 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
602 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
606 p += -wrap3 + 2 * BPP;
610 YUVA_IN(y, u, v, a, p, pal);
614 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
617 YUVA_IN(y, u, v, a, p, pal);
621 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
622 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
623 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
629 p += wrap3 + (wrap3 - dstw * BPP);
630 lum += wrap + (wrap - dstw - dstx);
631 cb += dst->linesize[1] - width2 - skip2;
632 cr += dst->linesize[2] - width2 - skip2;
634 /* handle odd height */
641 YUVA_IN(y, u, v, a, p, pal);
642 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
643 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
644 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
650 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
651 YUVA_IN(y, u, v, a, p, pal);
655 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
657 YUVA_IN(y, u, v, a, p + BPP, pal);
661 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
662 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
663 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
670 YUVA_IN(y, u, v, a, p, pal);
671 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
672 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
673 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
678 static void free_subpicture(SubPicture *sp)
682 for (i = 0; i < sp->sub.num_rects; i++)
684 av_freep(&sp->sub.rects[i]->pict.data[0]);
685 av_freep(&sp->sub.rects[i]->pict.data[1]);
686 av_freep(&sp->sub.rects[i]);
689 av_free(sp->sub.rects);
691 memset(&sp->sub, 0, sizeof(AVSubtitle));
694 static void video_image_display(VideoState *is)
700 int width, height, x, y;
704 vp = &is->pictq[is->pictq_rindex];
707 if (vp->picref->pixel_aspect.num == 0)
710 aspect_ratio = av_q2d(vp->picref->pixel_aspect);
713 /* XXX: use variable in the frame */
714 if (is->video_st->sample_aspect_ratio.num)
715 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
716 else if (is->video_st->codec->sample_aspect_ratio.num)
717 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
721 if (aspect_ratio <= 0.0)
723 aspect_ratio *= (float)vp->width / (float)vp->height;
724 /* if an active format is indicated, then it overrides the
727 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
728 is->dtg_active_format = is->video_st->codec->dtg_active_format;
729 printf("dtg_active_format=%d\n", is->dtg_active_format);
733 switch(is->video_st->codec->dtg_active_format) {
734 case FF_DTG_AFD_SAME:
739 aspect_ratio = 4.0 / 3.0;
741 case FF_DTG_AFD_16_9:
742 aspect_ratio = 16.0 / 9.0;
744 case FF_DTG_AFD_14_9:
745 aspect_ratio = 14.0 / 9.0;
747 case FF_DTG_AFD_4_3_SP_14_9:
748 aspect_ratio = 14.0 / 9.0;
750 case FF_DTG_AFD_16_9_SP_14_9:
751 aspect_ratio = 14.0 / 9.0;
753 case FF_DTG_AFD_SP_4_3:
754 aspect_ratio = 4.0 / 3.0;
761 if (is->subpq_size > 0)
763 sp = &is->subpq[is->subpq_rindex];
765 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
767 SDL_LockYUVOverlay (vp->bmp);
769 pict.data[0] = vp->bmp->pixels[0];
770 pict.data[1] = vp->bmp->pixels[2];
771 pict.data[2] = vp->bmp->pixels[1];
773 pict.linesize[0] = vp->bmp->pitches[0];
774 pict.linesize[1] = vp->bmp->pitches[2];
775 pict.linesize[2] = vp->bmp->pitches[1];
777 for (i = 0; i < sp->sub.num_rects; i++)
778 blend_subrect(&pict, sp->sub.rects[i],
779 vp->bmp->w, vp->bmp->h);
781 SDL_UnlockYUVOverlay (vp->bmp);
787 /* XXX: we suppose the screen has a 1.0 pixel ratio */
789 width = ((int)rint(height * aspect_ratio)) & ~1;
790 if (width > is->width) {
792 height = ((int)rint(width / aspect_ratio)) & ~1;
794 x = (is->width - width) / 2;
795 y = (is->height - height) / 2;
796 if (!is->no_background) {
797 /* fill the background */
798 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
800 is->no_background = 0;
802 rect.x = is->xleft + x;
803 rect.y = is->ytop + y;
806 SDL_DisplayYUVOverlay(vp->bmp, &rect);
809 fill_rectangle(screen,
810 is->xleft, is->ytop, is->width, is->height,
811 QERGB(0x00, 0x00, 0x00));
816 static inline int compute_mod(int a, int b)
825 static void video_audio_display(VideoState *s)
827 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
828 int ch, channels, h, h2, bgcolor, fgcolor;
830 int rdft_bits, nb_freq;
832 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
834 nb_freq= 1<<(rdft_bits-1);
836 /* compute display index : center on currently output samples */
837 channels = s->audio_st->codec->channels;
838 nb_display_channels = channels;
840 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
842 delay = audio_write_get_buf_size(s);
845 /* to be more precise, we take into account the time spent since
846 the last buffer computation */
847 if (audio_callback_time) {
848 time_diff = av_gettime() - audio_callback_time;
849 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
852 delay += 2*data_used;
853 if (delay < data_used)
856 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
857 if(s->show_audio==1){
859 for(i=0; i<1000; i+=channels){
860 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
861 int a= s->sample_array[idx];
862 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
863 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
864 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
866 if(h<score && (b^c)<0){
873 s->last_i_start = i_start;
875 i_start = s->last_i_start;
878 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
879 if(s->show_audio==1){
880 fill_rectangle(screen,
881 s->xleft, s->ytop, s->width, s->height,
884 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
886 /* total height for one channel */
887 h = s->height / nb_display_channels;
888 /* graph height / 2 */
890 for(ch = 0;ch < nb_display_channels; ch++) {
892 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
893 for(x = 0; x < s->width; x++) {
894 y = (s->sample_array[i] * h2) >> 15;
901 fill_rectangle(screen,
902 s->xleft + x, ys, 1, y,
905 if (i >= SAMPLE_ARRAY_SIZE)
906 i -= SAMPLE_ARRAY_SIZE;
910 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
912 for(ch = 1;ch < nb_display_channels; ch++) {
913 y = s->ytop + ch * h;
914 fill_rectangle(screen,
915 s->xleft, y, s->width, 1,
918 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
920 nb_display_channels= FFMIN(nb_display_channels, 2);
921 if(rdft_bits != s->rdft_bits){
922 av_rdft_end(s->rdft);
923 av_free(s->rdft_data);
924 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
925 s->rdft_bits= rdft_bits;
926 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
930 for(ch = 0;ch < nb_display_channels; ch++) {
931 data[ch] = s->rdft_data + 2*nb_freq*ch;
933 for(x = 0; x < 2*nb_freq; x++) {
934 double w= (x-nb_freq)*(1.0/nb_freq);
935 data[ch][x]= s->sample_array[i]*(1.0-w*w);
937 if (i >= SAMPLE_ARRAY_SIZE)
938 i -= SAMPLE_ARRAY_SIZE;
940 av_rdft_calc(s->rdft, data[ch]);
942 //least efficient way to do this, we should of course directly access it but its more than fast enough
943 for(y=0; y<s->height; y++){
944 double w= 1/sqrt(nb_freq);
945 int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1]));
946 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
947 + data[1][2*y+1]*data[1][2*y+1])) : a;
950 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
952 fill_rectangle(screen,
953 s->xpos, s->height-y, 1, 1,
957 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
959 if(s->xpos >= s->width)
964 static int video_open(VideoState *is){
965 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
968 if(is_full_screen) flags |= SDL_FULLSCREEN;
969 else flags |= SDL_RESIZABLE;
971 if (is_full_screen && fs_screen_width) {
973 h = fs_screen_height;
974 } else if(!is_full_screen && screen_width){
978 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
979 w = is->out_video_filter->inputs[0]->w;
980 h = is->out_video_filter->inputs[0]->h;
982 }else if (is->video_st && is->video_st->codec->width){
983 w = is->video_st->codec->width;
984 h = is->video_st->codec->height;
990 if(screen && is->width == screen->w && screen->w == w
991 && is->height== screen->h && screen->h == h)
995 screen = SDL_SetVideoMode(w, h, 0, flags);
997 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
998 screen = SDL_SetVideoMode(w, h, 24, flags);
1001 fprintf(stderr, "SDL: could not set video mode - exiting\n");
1005 window_title = input_filename;
1006 SDL_WM_SetCaption(window_title, window_title);
1008 is->width = screen->w;
1009 is->height = screen->h;
1014 /* display the current picture, if any */
1015 static void video_display(VideoState *is)
1018 video_open(cur_stream);
1019 if (is->audio_st && is->show_audio)
1020 video_audio_display(is);
1021 else if (is->video_st)
1022 video_image_display(is);
1025 static int refresh_thread(void *opaque)
1027 VideoState *is= opaque;
1028 while(!is->abort_request){
1030 event.type = FF_REFRESH_EVENT;
1031 event.user.data1 = opaque;
1034 SDL_PushEvent(&event);
1036 usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1041 /* get the current audio clock value */
1042 static double get_audio_clock(VideoState *is)
1045 int hw_buf_size, bytes_per_sec;
1046 pts = is->audio_clock;
1047 hw_buf_size = audio_write_get_buf_size(is);
1050 bytes_per_sec = is->audio_st->codec->sample_rate *
1051 2 * is->audio_st->codec->channels;
1054 pts -= (double)hw_buf_size / bytes_per_sec;
1058 /* get the current video clock value */
1059 static double get_video_clock(VideoState *is)
1062 return is->video_current_pts;
1064 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1068 /* get the current external clock value */
1069 static double get_external_clock(VideoState *is)
1073 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1076 /* get the current master clock value */
1077 static double get_master_clock(VideoState *is)
1081 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1083 val = get_video_clock(is);
1085 val = get_audio_clock(is);
1086 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1088 val = get_audio_clock(is);
1090 val = get_video_clock(is);
1092 val = get_external_clock(is);
1097 /* seek in the stream */
1098 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1100 if (!is->seek_req) {
1103 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1105 is->seek_flags |= AVSEEK_FLAG_BYTE;
1110 /* pause or resume the video */
1111 static void stream_pause(VideoState *is)
1114 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1115 if(is->read_pause_return != AVERROR(ENOSYS)){
1116 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1118 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1120 is->paused = !is->paused;
1123 static double compute_target_time(double frame_current_pts, VideoState *is)
1125 double delay, sync_threshold, diff;
1127 /* compute nominal delay */
1128 delay = frame_current_pts - is->frame_last_pts;
1129 if (delay <= 0 || delay >= 10.0) {
1130 /* if incorrect delay, use previous one */
1131 delay = is->frame_last_delay;
1133 is->frame_last_delay = delay;
1135 is->frame_last_pts = frame_current_pts;
1137 /* update delay to follow master synchronisation source */
1138 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1139 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1140 /* if video is slave, we try to correct big delays by
1141 duplicating or deleting a frame */
1142 diff = get_video_clock(is) - get_master_clock(is);
1144 /* skip or repeat frame. We take into account the
1145 delay to compute the threshold. I still don't know
1146 if it is the best guess */
1147 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1148 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1149 if (diff <= -sync_threshold)
1151 else if (diff >= sync_threshold)
1155 is->frame_timer += delay;
1156 #if defined(DEBUG_SYNC)
1157 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1158 delay, actual_delay, frame_current_pts, -diff);
1161 return is->frame_timer;
1164 /* called to display each frame */
1165 static void video_refresh_timer(void *opaque)
1167 VideoState *is = opaque;
1170 SubPicture *sp, *sp2;
1174 if (is->pictq_size == 0) {
1175 //nothing to do, no picture to display in the que
1177 double time= av_gettime()/1000000.0;
1179 /* dequeue the picture */
1180 vp = &is->pictq[is->pictq_rindex];
1182 if(time < vp->target_clock)
1184 /* update current video pts */
1185 is->video_current_pts = vp->pts;
1186 is->video_current_pts_drift = is->video_current_pts - time;
1187 is->video_current_pos = vp->pos;
1188 if(is->pictq_size > 1){
1189 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1190 assert(nextvp->target_clock >= vp->target_clock);
1191 next_target= nextvp->target_clock;
1193 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1195 if(framedrop && time > next_target){
1196 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1197 if(is->pictq_size > 1 || time > next_target + 0.5){
1198 /* update queue size and signal for next picture */
1199 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1200 is->pictq_rindex = 0;
1202 SDL_LockMutex(is->pictq_mutex);
1204 SDL_CondSignal(is->pictq_cond);
1205 SDL_UnlockMutex(is->pictq_mutex);
1210 if(is->subtitle_st) {
1211 if (is->subtitle_stream_changed) {
1212 SDL_LockMutex(is->subpq_mutex);
1214 while (is->subpq_size) {
1215 free_subpicture(&is->subpq[is->subpq_rindex]);
1217 /* update queue size and signal for next picture */
1218 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1219 is->subpq_rindex = 0;
1223 is->subtitle_stream_changed = 0;
1225 SDL_CondSignal(is->subpq_cond);
1226 SDL_UnlockMutex(is->subpq_mutex);
1228 if (is->subpq_size > 0) {
1229 sp = &is->subpq[is->subpq_rindex];
1231 if (is->subpq_size > 1)
1232 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1236 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1237 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1239 free_subpicture(sp);
1241 /* update queue size and signal for next picture */
1242 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1243 is->subpq_rindex = 0;
1245 SDL_LockMutex(is->subpq_mutex);
1247 SDL_CondSignal(is->subpq_cond);
1248 SDL_UnlockMutex(is->subpq_mutex);
1254 /* display picture */
1257 /* update queue size and signal for next picture */
1258 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1259 is->pictq_rindex = 0;
1261 SDL_LockMutex(is->pictq_mutex);
1263 SDL_CondSignal(is->pictq_cond);
1264 SDL_UnlockMutex(is->pictq_mutex);
1266 } else if (is->audio_st) {
1267 /* draw the next audio frame */
1269 /* if only audio stream, then display the audio bars (better
1270 than nothing, just to test the implementation */
1272 /* display picture */
1276 static int64_t last_time;
1278 int aqsize, vqsize, sqsize;
1281 cur_time = av_gettime();
1282 if (!last_time || (cur_time - last_time) >= 30000) {
1287 aqsize = is->audioq.size;
1289 vqsize = is->videoq.size;
1290 if (is->subtitle_st)
1291 sqsize = is->subtitleq.size;
1293 if (is->audio_st && is->video_st)
1294 av_diff = get_audio_clock(is) - get_video_clock(is);
1295 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1296 get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1298 last_time = cur_time;
1303 /* allocate a picture (needs to do that in main thread to avoid
1304 potential locking problems */
1305 static void alloc_picture(void *opaque)
1307 VideoState *is = opaque;
1310 vp = &is->pictq[is->pictq_windex];
1313 SDL_FreeYUVOverlay(vp->bmp);
1317 avfilter_unref_pic(vp->picref);
1320 vp->width = is->out_video_filter->inputs[0]->w;
1321 vp->height = is->out_video_filter->inputs[0]->h;
1322 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1324 vp->width = is->video_st->codec->width;
1325 vp->height = is->video_st->codec->height;
1326 vp->pix_fmt = is->video_st->codec->pix_fmt;
1329 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1333 SDL_LockMutex(is->pictq_mutex);
1335 SDL_CondSignal(is->pictq_cond);
1336 SDL_UnlockMutex(is->pictq_mutex);
1341 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1343 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1350 /* wait until we have space to put a new picture */
1351 SDL_LockMutex(is->pictq_mutex);
1353 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1354 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1356 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1357 !is->videoq.abort_request) {
1358 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1360 SDL_UnlockMutex(is->pictq_mutex);
1362 if (is->videoq.abort_request)
1365 vp = &is->pictq[is->pictq_windex];
1367 /* alloc or resize hardware picture buffer */
1370 vp->width != is->out_video_filter->inputs[0]->w ||
1371 vp->height != is->out_video_filter->inputs[0]->h) {
1373 vp->width != is->video_st->codec->width ||
1374 vp->height != is->video_st->codec->height) {
1380 /* the allocation must be done in the main thread to avoid
1382 event.type = FF_ALLOC_EVENT;
1383 event.user.data1 = is;
1384 SDL_PushEvent(&event);
1386 /* wait until the picture is allocated */
1387 SDL_LockMutex(is->pictq_mutex);
1388 while (!vp->allocated && !is->videoq.abort_request) {
1389 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1391 SDL_UnlockMutex(is->pictq_mutex);
1393 if (is->videoq.abort_request)
1397 /* if the frame is not skipped, then display it */
1402 avfilter_unref_pic(vp->picref);
1403 vp->picref = src_frame->opaque;
1406 /* get a pointer on the bitmap */
1407 SDL_LockYUVOverlay (vp->bmp);
1409 dst_pix_fmt = PIX_FMT_YUV420P;
1410 memset(&pict,0,sizeof(AVPicture));
1411 pict.data[0] = vp->bmp->pixels[0];
1412 pict.data[1] = vp->bmp->pixels[2];
1413 pict.data[2] = vp->bmp->pixels[1];
1415 pict.linesize[0] = vp->bmp->pitches[0];
1416 pict.linesize[1] = vp->bmp->pitches[2];
1417 pict.linesize[2] = vp->bmp->pitches[1];
1420 pict_src.data[0] = src_frame->data[0];
1421 pict_src.data[1] = src_frame->data[1];
1422 pict_src.data[2] = src_frame->data[2];
1424 pict_src.linesize[0] = src_frame->linesize[0];
1425 pict_src.linesize[1] = src_frame->linesize[1];
1426 pict_src.linesize[2] = src_frame->linesize[2];
1428 //FIXME use direct rendering
1429 av_picture_copy(&pict, &pict_src,
1430 vp->pix_fmt, vp->width, vp->height);
1432 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1433 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1434 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1435 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1436 if (is->img_convert_ctx == NULL) {
1437 fprintf(stderr, "Cannot initialize the conversion context\n");
1440 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1441 0, vp->height, pict.data, pict.linesize);
1443 /* update the bitmap content */
1444 SDL_UnlockYUVOverlay(vp->bmp);
1449 /* now we can update the picture count */
1450 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1451 is->pictq_windex = 0;
1452 SDL_LockMutex(is->pictq_mutex);
1453 vp->target_clock= compute_target_time(vp->pts, is);
1456 SDL_UnlockMutex(is->pictq_mutex);
1462 * compute the exact PTS for the picture if it is omitted in the stream
1463 * @param pts1 the dts of the pkt / pts of the frame
1465 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1467 double frame_delay, pts;
1472 /* update video clock with pts, if present */
1473 is->video_clock = pts;
1475 pts = is->video_clock;
1477 /* update video clock for next frame */
1478 frame_delay = av_q2d(is->video_st->codec->time_base);
1479 /* for MPEG2, the frame can be repeated, so we update the
1480 clock accordingly */
1481 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1482 is->video_clock += frame_delay;
1484 #if defined(DEBUG_SYNC) && 0
1485 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1486 av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1488 return queue_picture(is, src_frame, pts, pos);
1491 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1493 int len1, got_picture, i;
1495 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1498 if(pkt->data == flush_pkt.data){
1499 avcodec_flush_buffers(is->video_st->codec);
1501 SDL_LockMutex(is->pictq_mutex);
1502 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1503 for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1504 is->pictq[i].target_clock= 0;
1506 while (is->pictq_size && !is->videoq.abort_request) {
1507 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1509 is->video_current_pos= -1;
1510 SDL_UnlockMutex(is->pictq_mutex);
1512 is->last_dts_for_fault_detection=
1513 is->last_pts_for_fault_detection= INT64_MIN;
1514 is->frame_last_pts= AV_NOPTS_VALUE;
1515 is->frame_last_delay = 0;
1516 is->frame_timer = (double)av_gettime() / 1000000.0;
1518 is->skip_frames_index= 0;
1522 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1523 this packet, if any */
1524 is->video_st->codec->reordered_opaque= pkt->pts;
1525 len1 = avcodec_decode_video2(is->video_st->codec,
1526 frame, &got_picture,
1530 if(pkt->dts != AV_NOPTS_VALUE){
1531 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1532 is->last_dts_for_fault_detection= pkt->dts;
1534 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1535 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1536 is->last_pts_for_fault_detection= frame->reordered_opaque;
1540 if( ( decoder_reorder_pts==1
1541 || (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
1542 || pkt->dts == AV_NOPTS_VALUE)
1543 && frame->reordered_opaque != AV_NOPTS_VALUE)
1544 *pts= frame->reordered_opaque;
1545 else if(pkt->dts != AV_NOPTS_VALUE)
1553 is->skip_frames_index += 1;
1554 if(is->skip_frames_index >= is->skip_frames){
1555 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1570 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1572 AVFilterContext *ctx = codec->opaque;
1573 AVFilterPicRef *ref;
1574 int perms = AV_PERM_WRITE;
1575 int i, w, h, stride[4];
1578 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1579 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1580 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1581 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1583 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1587 avcodec_align_dimensions2(codec, &w, &h, stride);
1588 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1592 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1595 ref->w = codec->width;
1596 ref->h = codec->height;
1597 for(i = 0; i < 4; i ++) {
1598 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->pic->format].log2_chroma_w : 0;
1599 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->pic->format].log2_chroma_h : 0;
1602 ref->data[i] += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1604 pic->data[i] = ref->data[i];
1605 pic->linesize[i] = ref->linesize[i];
1609 pic->type = FF_BUFFER_TYPE_USER;
1610 pic->reordered_opaque = codec->reordered_opaque;
1614 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1616 memset(pic->data, 0, sizeof(pic->data));
1617 avfilter_unref_pic(pic->opaque);
1620 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1622 AVFilterPicRef *ref = pic->opaque;
1624 if (pic->data[0] == NULL) {
1625 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1626 return codec->get_buffer(codec, pic);
1629 if ((codec->width != ref->w) || (codec->height != ref->h) ||
1630 (codec->pix_fmt != ref->pic->format)) {
1631 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1635 pic->reordered_opaque = codec->reordered_opaque;
1639 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1641 FilterPriv *priv = ctx->priv;
1642 AVCodecContext *codec;
1643 if(!opaque) return -1;
1646 codec = priv->is->video_st->codec;
1647 codec->opaque = ctx;
1648 if(codec->codec->capabilities & CODEC_CAP_DR1) {
1650 codec->get_buffer = input_get_buffer;
1651 codec->release_buffer = input_release_buffer;
1652 codec->reget_buffer = input_reget_buffer;
1655 priv->frame = avcodec_alloc_frame();
1660 static void input_uninit(AVFilterContext *ctx)
1662 FilterPriv *priv = ctx->priv;
1663 av_free(priv->frame);
1666 static int input_request_frame(AVFilterLink *link)
1668 FilterPriv *priv = link->src->priv;
1669 AVFilterPicRef *picref;
1674 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1675 av_free_packet(&pkt);
1680 picref = avfilter_ref_pic(priv->frame->opaque, ~0);
1682 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1683 av_picture_copy((AVPicture *)&picref->data, (AVPicture *)priv->frame,
1684 picref->pic->format, link->w, link->h);
1686 av_free_packet(&pkt);
1689 picref->pos = pkt.pos;
1690 picref->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1691 avfilter_start_frame(link, picref);
1692 avfilter_draw_slice(link, 0, link->h, 1);
1693 avfilter_end_frame(link);
1698 static int input_query_formats(AVFilterContext *ctx)
1700 FilterPriv *priv = ctx->priv;
1701 enum PixelFormat pix_fmts[] = {
1702 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1705 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1709 static int input_config_props(AVFilterLink *link)
1711 FilterPriv *priv = link->src->priv;
1712 AVCodecContext *c = priv->is->video_st->codec;
1715 link->h = c->height;
1720 static AVFilter input_filter =
1722 .name = "ffplay_input",
1724 .priv_size = sizeof(FilterPriv),
1727 .uninit = input_uninit,
1729 .query_formats = input_query_formats,
1731 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1732 .outputs = (AVFilterPad[]) {{ .name = "default",
1733 .type = AVMEDIA_TYPE_VIDEO,
1734 .request_frame = input_request_frame,
1735 .config_props = input_config_props, },
1739 static void output_end_frame(AVFilterLink *link)
1743 static int output_query_formats(AVFilterContext *ctx)
1745 enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1747 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1751 static int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
1752 int64_t *pts, int64_t *pos)
1754 AVFilterPicRef *pic;
1756 if(avfilter_request_frame(ctx->inputs[0]))
1758 if(!(pic = ctx->inputs[0]->cur_pic))
1760 ctx->inputs[0]->cur_pic = NULL;
1762 frame->opaque = pic;
1766 memcpy(frame->data, pic->data, sizeof(frame->data));
1767 memcpy(frame->linesize, pic->linesize, sizeof(frame->linesize));
1772 static AVFilter output_filter =
1774 .name = "ffplay_output",
1776 .query_formats = output_query_formats,
1778 .inputs = (AVFilterPad[]) {{ .name = "default",
1779 .type = AVMEDIA_TYPE_VIDEO,
1780 .end_frame = output_end_frame,
1781 .min_perms = AV_PERM_READ, },
1783 .outputs = (AVFilterPad[]) {{ .name = NULL }},
1785 #endif /* CONFIG_AVFILTER */
1787 static int video_thread(void *arg)
1789 VideoState *is = arg;
1790 AVFrame *frame= avcodec_alloc_frame();
1797 char sws_flags_str[128];
1798 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1799 AVFilterGraph *graph = av_mallocz(sizeof(AVFilterGraph));
1800 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1801 graph->scale_sws_opts = av_strdup(sws_flags_str);
1803 if(!(filt_src = avfilter_open(&input_filter, "src"))) goto the_end;
1804 if(!(filt_out = avfilter_open(&output_filter, "out"))) goto the_end;
1806 if(avfilter_init_filter(filt_src, NULL, is)) goto the_end;
1807 if(avfilter_init_filter(filt_out, NULL, frame)) goto the_end;
1811 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1812 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1814 outputs->name = av_strdup("in");
1815 outputs->filter = filt_src;
1816 outputs->pad_idx = 0;
1817 outputs->next = NULL;
1819 inputs->name = av_strdup("out");
1820 inputs->filter = filt_out;
1821 inputs->pad_idx = 0;
1822 inputs->next = NULL;
1824 if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1826 av_freep(&vfilters);
1828 if(avfilter_link(filt_src, 0, filt_out, 0) < 0) goto the_end;
1830 avfilter_graph_add_filter(graph, filt_src);
1831 avfilter_graph_add_filter(graph, filt_out);
1833 if(avfilter_graph_check_validity(graph, NULL)) goto the_end;
1834 if(avfilter_graph_config_formats(graph, NULL)) goto the_end;
1835 if(avfilter_graph_config_links(graph, NULL)) goto the_end;
1837 is->out_video_filter = filt_out;
1841 #if !CONFIG_AVFILTER
1844 while (is->paused && !is->videoq.abort_request)
1847 ret = get_filtered_video_frame(filt_out, frame, &pts_int, &pos);
1849 ret = get_video_frame(is, frame, &pts_int, &pkt);
1852 if (ret < 0) goto the_end;
1857 pts = pts_int*av_q2d(is->video_st->time_base);
1860 ret = output_picture2(is, frame, pts, pos);
1862 ret = output_picture2(is, frame, pts, pkt.pos);
1863 av_free_packet(&pkt);
1870 stream_pause(cur_stream);
1874 avfilter_graph_destroy(graph);
1881 static int subtitle_thread(void *arg)
1883 VideoState *is = arg;
1885 AVPacket pkt1, *pkt = &pkt1;
1886 int len1, got_subtitle;
1889 int r, g, b, y, u, v, a;
1892 while (is->paused && !is->subtitleq.abort_request) {
1895 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1898 if(pkt->data == flush_pkt.data){
1899 avcodec_flush_buffers(is->subtitle_st->codec);
1902 SDL_LockMutex(is->subpq_mutex);
1903 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1904 !is->subtitleq.abort_request) {
1905 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1907 SDL_UnlockMutex(is->subpq_mutex);
1909 if (is->subtitleq.abort_request)
1912 sp = &is->subpq[is->subpq_windex];
1914 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1915 this packet, if any */
1917 if (pkt->pts != AV_NOPTS_VALUE)
1918 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1920 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1921 &sp->sub, &got_subtitle,
1925 if (got_subtitle && sp->sub.format == 0) {
1928 for (i = 0; i < sp->sub.num_rects; i++)
1930 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1932 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1933 y = RGB_TO_Y_CCIR(r, g, b);
1934 u = RGB_TO_U_CCIR(r, g, b, 0);
1935 v = RGB_TO_V_CCIR(r, g, b, 0);
1936 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1940 /* now we can update the picture count */
1941 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1942 is->subpq_windex = 0;
1943 SDL_LockMutex(is->subpq_mutex);
1945 SDL_UnlockMutex(is->subpq_mutex);
1947 av_free_packet(pkt);
1950 // stream_pause(cur_stream);
1956 /* copy samples for viewing in editor window */
1957 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1959 int size, len, channels;
1961 channels = is->audio_st->codec->channels;
1963 size = samples_size / sizeof(short);
1965 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1968 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1970 is->sample_array_index += len;
1971 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1972 is->sample_array_index = 0;
1977 /* return the new audio buffer size (samples can be added or deleted
1978 to get better sync if video or external master clock) */
1979 static int synchronize_audio(VideoState *is, short *samples,
1980 int samples_size1, double pts)
1982 int n, samples_size;
1985 n = 2 * is->audio_st->codec->channels;
1986 samples_size = samples_size1;
1988 /* if not master, then we try to remove or add samples to correct the clock */
1989 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1990 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1991 double diff, avg_diff;
1992 int wanted_size, min_size, max_size, nb_samples;
1994 ref_clock = get_master_clock(is);
1995 diff = get_audio_clock(is) - ref_clock;
1997 if (diff < AV_NOSYNC_THRESHOLD) {
1998 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1999 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2000 /* not enough measures to have a correct estimate */
2001 is->audio_diff_avg_count++;
2003 /* estimate the A-V difference */
2004 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2006 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2007 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2008 nb_samples = samples_size / n;
2010 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2011 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2012 if (wanted_size < min_size)
2013 wanted_size = min_size;
2014 else if (wanted_size > max_size)
2015 wanted_size = max_size;
2017 /* add or remove samples to correction the synchro */
2018 if (wanted_size < samples_size) {
2019 /* remove samples */
2020 samples_size = wanted_size;
2021 } else if (wanted_size > samples_size) {
2022 uint8_t *samples_end, *q;
2026 nb = (samples_size - wanted_size);
2027 samples_end = (uint8_t *)samples + samples_size - n;
2028 q = samples_end + n;
2030 memcpy(q, samples_end, n);
2034 samples_size = wanted_size;
2038 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2039 diff, avg_diff, samples_size - samples_size1,
2040 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2044 /* too big difference : may be initial PTS errors, so
2046 is->audio_diff_avg_count = 0;
2047 is->audio_diff_cum = 0;
2051 return samples_size;
2054 /* decode one audio frame and returns its uncompressed size */
2055 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2057 AVPacket *pkt_temp = &is->audio_pkt_temp;
2058 AVPacket *pkt = &is->audio_pkt;
2059 AVCodecContext *dec= is->audio_st->codec;
2060 int n, len1, data_size;
2064 /* NOTE: the audio packet can contain several frames */
2065 while (pkt_temp->size > 0) {
2066 data_size = sizeof(is->audio_buf1);
2067 len1 = avcodec_decode_audio3(dec,
2068 (int16_t *)is->audio_buf1, &data_size,
2071 /* if error, we skip the frame */
2076 pkt_temp->data += len1;
2077 pkt_temp->size -= len1;
2081 if (dec->sample_fmt != is->audio_src_fmt) {
2082 if (is->reformat_ctx)
2083 av_audio_convert_free(is->reformat_ctx);
2084 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
2085 dec->sample_fmt, 1, NULL, 0);
2086 if (!is->reformat_ctx) {
2087 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2088 avcodec_get_sample_fmt_name(dec->sample_fmt),
2089 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
2092 is->audio_src_fmt= dec->sample_fmt;
2095 if (is->reformat_ctx) {
2096 const void *ibuf[6]= {is->audio_buf1};
2097 void *obuf[6]= {is->audio_buf2};
2098 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
2099 int ostride[6]= {2};
2100 int len= data_size/istride[0];
2101 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2102 printf("av_audio_convert() failed\n");
2105 is->audio_buf= is->audio_buf2;
2106 /* FIXME: existing code assume that data_size equals framesize*channels*2
2107 remove this legacy cruft */
2110 is->audio_buf= is->audio_buf1;
2113 /* if no pts, then compute it */
2114 pts = is->audio_clock;
2116 n = 2 * dec->channels;
2117 is->audio_clock += (double)data_size /
2118 (double)(n * dec->sample_rate);
2119 #if defined(DEBUG_SYNC)
2121 static double last_clock;
2122 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2123 is->audio_clock - last_clock,
2124 is->audio_clock, pts);
2125 last_clock = is->audio_clock;
2131 /* free the current packet */
2133 av_free_packet(pkt);
2135 if (is->paused || is->audioq.abort_request) {
2139 /* read next packet */
2140 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2142 if(pkt->data == flush_pkt.data){
2143 avcodec_flush_buffers(dec);
2147 pkt_temp->data = pkt->data;
2148 pkt_temp->size = pkt->size;
2150 /* if update the audio clock with the pts */
2151 if (pkt->pts != AV_NOPTS_VALUE) {
2152 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2157 /* get the current audio output buffer size, in samples. With SDL, we
2158 cannot have a precise information */
2159 static int audio_write_get_buf_size(VideoState *is)
2161 return is->audio_buf_size - is->audio_buf_index;
2165 /* prepare a new audio buffer */
2166 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2168 VideoState *is = opaque;
2169 int audio_size, len1;
2172 audio_callback_time = av_gettime();
2175 if (is->audio_buf_index >= is->audio_buf_size) {
2176 audio_size = audio_decode_frame(is, &pts);
2177 if (audio_size < 0) {
2178 /* if error, just output silence */
2179 is->audio_buf = is->audio_buf1;
2180 is->audio_buf_size = 1024;
2181 memset(is->audio_buf, 0, is->audio_buf_size);
2184 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2185 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2187 is->audio_buf_size = audio_size;
2189 is->audio_buf_index = 0;
2191 len1 = is->audio_buf_size - is->audio_buf_index;
2194 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2197 is->audio_buf_index += len1;
2201 /* open a given stream. Return 0 if OK */
2202 static int stream_component_open(VideoState *is, int stream_index)
2204 AVFormatContext *ic = is->ic;
2205 AVCodecContext *avctx;
2207 SDL_AudioSpec wanted_spec, spec;
2209 if (stream_index < 0 || stream_index >= ic->nb_streams)
2211 avctx = ic->streams[stream_index]->codec;
2213 /* prepare audio output */
2214 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2215 if (avctx->channels > 0) {
2216 avctx->request_channels = FFMIN(2, avctx->channels);
2218 avctx->request_channels = 2;
2222 codec = avcodec_find_decoder(avctx->codec_id);
2223 avctx->debug_mv = debug_mv;
2224 avctx->debug = debug;
2225 avctx->workaround_bugs = workaround_bugs;
2226 avctx->lowres = lowres;
2227 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2228 avctx->idct_algo= idct;
2229 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2230 avctx->skip_frame= skip_frame;
2231 avctx->skip_idct= skip_idct;
2232 avctx->skip_loop_filter= skip_loop_filter;
2233 avctx->error_recognition= error_recognition;
2234 avctx->error_concealment= error_concealment;
2235 avcodec_thread_init(avctx, thread_count);
2237 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0);
2240 avcodec_open(avctx, codec) < 0)
2243 /* prepare audio output */
2244 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2245 wanted_spec.freq = avctx->sample_rate;
2246 wanted_spec.format = AUDIO_S16SYS;
2247 wanted_spec.channels = avctx->channels;
2248 wanted_spec.silence = 0;
2249 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2250 wanted_spec.callback = sdl_audio_callback;
2251 wanted_spec.userdata = is;
2252 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2253 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2256 is->audio_hw_buf_size = spec.size;
2257 is->audio_src_fmt= SAMPLE_FMT_S16;
2260 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2261 switch(avctx->codec_type) {
2262 case AVMEDIA_TYPE_AUDIO:
2263 is->audio_stream = stream_index;
2264 is->audio_st = ic->streams[stream_index];
2265 is->audio_buf_size = 0;
2266 is->audio_buf_index = 0;
2268 /* init averaging filter */
2269 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2270 is->audio_diff_avg_count = 0;
2271 /* since we do not have a precise anough audio fifo fullness,
2272 we correct audio sync only if larger than this threshold */
2273 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2275 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2276 packet_queue_init(&is->audioq);
2279 case AVMEDIA_TYPE_VIDEO:
2280 is->video_stream = stream_index;
2281 is->video_st = ic->streams[stream_index];
2283 // is->video_current_pts_time = av_gettime();
2285 packet_queue_init(&is->videoq);
2286 is->video_tid = SDL_CreateThread(video_thread, is);
2288 case AVMEDIA_TYPE_SUBTITLE:
2289 is->subtitle_stream = stream_index;
2290 is->subtitle_st = ic->streams[stream_index];
2291 packet_queue_init(&is->subtitleq);
2293 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2301 static void stream_component_close(VideoState *is, int stream_index)
2303 AVFormatContext *ic = is->ic;
2304 AVCodecContext *avctx;
2306 if (stream_index < 0 || stream_index >= ic->nb_streams)
2308 avctx = ic->streams[stream_index]->codec;
2310 switch(avctx->codec_type) {
2311 case AVMEDIA_TYPE_AUDIO:
2312 packet_queue_abort(&is->audioq);
2316 packet_queue_end(&is->audioq);
2317 if (is->reformat_ctx)
2318 av_audio_convert_free(is->reformat_ctx);
2319 is->reformat_ctx = NULL;
2321 case AVMEDIA_TYPE_VIDEO:
2322 packet_queue_abort(&is->videoq);
2324 /* note: we also signal this mutex to make sure we deblock the
2325 video thread in all cases */
2326 SDL_LockMutex(is->pictq_mutex);
2327 SDL_CondSignal(is->pictq_cond);
2328 SDL_UnlockMutex(is->pictq_mutex);
2330 SDL_WaitThread(is->video_tid, NULL);
2332 packet_queue_end(&is->videoq);
2334 case AVMEDIA_TYPE_SUBTITLE:
2335 packet_queue_abort(&is->subtitleq);
2337 /* note: we also signal this mutex to make sure we deblock the
2338 video thread in all cases */
2339 SDL_LockMutex(is->subpq_mutex);
2340 is->subtitle_stream_changed = 1;
2342 SDL_CondSignal(is->subpq_cond);
2343 SDL_UnlockMutex(is->subpq_mutex);
2345 SDL_WaitThread(is->subtitle_tid, NULL);
2347 packet_queue_end(&is->subtitleq);
2353 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2354 avcodec_close(avctx);
2355 switch(avctx->codec_type) {
2356 case AVMEDIA_TYPE_AUDIO:
2357 is->audio_st = NULL;
2358 is->audio_stream = -1;
2360 case AVMEDIA_TYPE_VIDEO:
2361 is->video_st = NULL;
2362 is->video_stream = -1;
2364 case AVMEDIA_TYPE_SUBTITLE:
2365 is->subtitle_st = NULL;
2366 is->subtitle_stream = -1;
2373 /* since we have only one decoding thread, we can use a global
2374 variable instead of a thread local variable */
2375 static VideoState *global_video_state;
2377 static int decode_interrupt_cb(void)
2379 return (global_video_state && global_video_state->abort_request);
2382 /* this thread gets the stream from the disk or the network */
2383 static int decode_thread(void *arg)
2385 VideoState *is = arg;
2386 AVFormatContext *ic;
2388 int st_index[AVMEDIA_TYPE_NB];
2389 int st_count[AVMEDIA_TYPE_NB]={0};
2390 int st_best_packet_count[AVMEDIA_TYPE_NB];
2391 AVPacket pkt1, *pkt = &pkt1;
2392 AVFormatParameters params, *ap = ¶ms;
2394 int pkt_in_play_range = 0;
2396 ic = avformat_alloc_context();
2398 memset(st_index, -1, sizeof(st_index));
2399 memset(st_best_packet_count, -1, sizeof(st_best_packet_count));
2400 is->video_stream = -1;
2401 is->audio_stream = -1;
2402 is->subtitle_stream = -1;
2404 global_video_state = is;
2405 url_set_interrupt_cb(decode_interrupt_cb);
2407 memset(ap, 0, sizeof(*ap));
2409 ap->prealloced_context = 1;
2410 ap->width = frame_width;
2411 ap->height= frame_height;
2412 ap->time_base= (AVRational){1, 25};
2413 ap->pix_fmt = frame_pix_fmt;
2415 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2417 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2419 print_error(is->filename, err);
2426 ic->flags |= AVFMT_FLAG_GENPTS;
2428 err = av_find_stream_info(ic);
2430 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2435 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2438 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2440 /* if seeking requested, we execute it */
2441 if (start_time != AV_NOPTS_VALUE) {
2444 timestamp = start_time;
2445 /* add the stream start time */
2446 if (ic->start_time != AV_NOPTS_VALUE)
2447 timestamp += ic->start_time;
2448 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2450 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2451 is->filename, (double)timestamp / AV_TIME_BASE);
2455 for(i = 0; i < ic->nb_streams; i++) {
2456 AVStream *st= ic->streams[i];
2457 AVCodecContext *avctx = st->codec;
2458 ic->streams[i]->discard = AVDISCARD_ALL;
2459 if(avctx->codec_type >= (unsigned)AVMEDIA_TYPE_NB)
2461 if(st_count[avctx->codec_type]++ != wanted_stream[avctx->codec_type] && wanted_stream[avctx->codec_type] >= 0)
2464 if(st_best_packet_count[avctx->codec_type] >= st->codec_info_nb_frames)
2466 st_best_packet_count[avctx->codec_type]= st->codec_info_nb_frames;
2468 switch(avctx->codec_type) {
2469 case AVMEDIA_TYPE_AUDIO:
2471 st_index[AVMEDIA_TYPE_AUDIO] = i;
2473 case AVMEDIA_TYPE_VIDEO:
2474 case AVMEDIA_TYPE_SUBTITLE:
2476 st_index[avctx->codec_type] = i;
2483 dump_format(ic, 0, is->filename, 0);
2486 /* open the streams */
2487 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2488 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2492 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2493 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2495 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2497 if (!display_disable)
2501 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2502 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2505 if (is->video_stream < 0 && is->audio_stream < 0) {
2506 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2512 if (is->abort_request)
2514 if (is->paused != is->last_paused) {
2515 is->last_paused = is->paused;
2517 is->read_pause_return= av_read_pause(ic);
2521 #if CONFIG_RTSP_DEMUXER
2522 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2523 /* wait 10 ms to avoid trying to get another packet */
2530 int64_t seek_target= is->seek_pos;
2531 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2532 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2533 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2534 // of the seek_pos/seek_rel variables
2536 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2538 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2540 if (is->audio_stream >= 0) {
2541 packet_queue_flush(&is->audioq);
2542 packet_queue_put(&is->audioq, &flush_pkt);
2544 if (is->subtitle_stream >= 0) {
2545 packet_queue_flush(&is->subtitleq);
2546 packet_queue_put(&is->subtitleq, &flush_pkt);
2548 if (is->video_stream >= 0) {
2549 packet_queue_flush(&is->videoq);
2550 packet_queue_put(&is->videoq, &flush_pkt);
2557 /* if the queue are full, no need to read more */
2558 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2559 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2560 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2561 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2566 if(url_feof(ic->pb) || eof) {
2567 if(is->video_stream >= 0){
2568 av_init_packet(pkt);
2571 pkt->stream_index= is->video_stream;
2572 packet_queue_put(&is->videoq, pkt);
2575 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2576 if(loop!=1 && (!loop || --loop)){
2577 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2585 ret = av_read_frame(ic, pkt);
2587 if (ret == AVERROR_EOF)
2589 if (url_ferror(ic->pb))
2591 SDL_Delay(100); /* wait for user event */
2594 /* check if packet is in play range specified by user, then queue, otherwise discard */
2595 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2596 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2597 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2598 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2599 <= ((double)duration/1000000);
2600 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2601 packet_queue_put(&is->audioq, pkt);
2602 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2603 packet_queue_put(&is->videoq, pkt);
2604 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2605 packet_queue_put(&is->subtitleq, pkt);
2607 av_free_packet(pkt);
2610 /* wait until the end */
2611 while (!is->abort_request) {
2617 /* disable interrupting */
2618 global_video_state = NULL;
2620 /* close each stream */
2621 if (is->audio_stream >= 0)
2622 stream_component_close(is, is->audio_stream);
2623 if (is->video_stream >= 0)
2624 stream_component_close(is, is->video_stream);
2625 if (is->subtitle_stream >= 0)
2626 stream_component_close(is, is->subtitle_stream);
2628 av_close_input_file(is->ic);
2629 is->ic = NULL; /* safety */
2631 url_set_interrupt_cb(NULL);
2636 event.type = FF_QUIT_EVENT;
2637 event.user.data1 = is;
2638 SDL_PushEvent(&event);
2643 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2647 is = av_mallocz(sizeof(VideoState));
2650 av_strlcpy(is->filename, filename, sizeof(is->filename));
2651 is->iformat = iformat;
2655 /* start video display */
2656 is->pictq_mutex = SDL_CreateMutex();
2657 is->pictq_cond = SDL_CreateCond();
2659 is->subpq_mutex = SDL_CreateMutex();
2660 is->subpq_cond = SDL_CreateCond();
2662 is->av_sync_type = av_sync_type;
2663 is->parse_tid = SDL_CreateThread(decode_thread, is);
2664 if (!is->parse_tid) {
2671 static void stream_close(VideoState *is)
2675 /* XXX: use a special url_shutdown call to abort parse cleanly */
2676 is->abort_request = 1;
2677 SDL_WaitThread(is->parse_tid, NULL);
2678 SDL_WaitThread(is->refresh_tid, NULL);
2680 /* free all pictures */
2681 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2685 avfilter_unref_pic(vp->picref);
2690 SDL_FreeYUVOverlay(vp->bmp);
2694 SDL_DestroyMutex(is->pictq_mutex);
2695 SDL_DestroyCond(is->pictq_cond);
2696 SDL_DestroyMutex(is->subpq_mutex);
2697 SDL_DestroyCond(is->subpq_cond);
2698 #if !CONFIG_AVFILTER
2699 if (is->img_convert_ctx)
2700 sws_freeContext(is->img_convert_ctx);
2705 static void stream_cycle_channel(VideoState *is, int codec_type)
2707 AVFormatContext *ic = is->ic;
2708 int start_index, stream_index;
2711 if (codec_type == AVMEDIA_TYPE_VIDEO)
2712 start_index = is->video_stream;
2713 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2714 start_index = is->audio_stream;
2716 start_index = is->subtitle_stream;
2717 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2719 stream_index = start_index;
2721 if (++stream_index >= is->ic->nb_streams)
2723 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2730 if (stream_index == start_index)
2732 st = ic->streams[stream_index];
2733 if (st->codec->codec_type == codec_type) {
2734 /* check that parameters are OK */
2735 switch(codec_type) {
2736 case AVMEDIA_TYPE_AUDIO:
2737 if (st->codec->sample_rate != 0 &&
2738 st->codec->channels != 0)
2741 case AVMEDIA_TYPE_VIDEO:
2742 case AVMEDIA_TYPE_SUBTITLE:
2750 stream_component_close(is, start_index);
2751 stream_component_open(is, stream_index);
2755 static void toggle_full_screen(void)
2757 is_full_screen = !is_full_screen;
2758 if (!fs_screen_width) {
2759 /* use default SDL method */
2760 // SDL_WM_ToggleFullScreen(screen);
2762 video_open(cur_stream);
2765 static void toggle_pause(void)
2768 stream_pause(cur_stream);
2772 static void step_to_next_frame(void)
2775 /* if the stream is paused unpause it, then step */
2776 if (cur_stream->paused)
2777 stream_pause(cur_stream);
2782 static void do_exit(void)
2786 stream_close(cur_stream);
2789 for (i = 0; i < AVMEDIA_TYPE_NB; i++)
2790 av_free(avcodec_opts[i]);
2791 av_free(avformat_opts);
2802 static void toggle_audio_display(void)
2805 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2806 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2807 fill_rectangle(screen,
2808 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2810 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2814 /* handle an event sent by the GUI */
2815 static void event_loop(void)
2818 double incr, pos, frac;
2822 SDL_WaitEvent(&event);
2823 switch(event.type) {
2825 if (exit_on_keydown) {
2829 switch(event.key.keysym.sym) {
2835 toggle_full_screen();
2841 case SDLK_s: //S: Step to next frame
2842 step_to_next_frame();
2846 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2850 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2854 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2857 toggle_audio_display();
2872 if (seek_by_bytes) {
2873 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2874 pos= cur_stream->video_current_pos;
2875 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2876 pos= cur_stream->audio_pkt.pos;
2878 pos = url_ftell(cur_stream->ic->pb);
2879 if (cur_stream->ic->bit_rate)
2880 incr *= cur_stream->ic->bit_rate / 8.0;
2884 stream_seek(cur_stream, pos, incr, 1);
2886 pos = get_master_clock(cur_stream);
2888 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2896 case SDL_MOUSEBUTTONDOWN:
2897 if (exit_on_mousedown) {
2901 case SDL_MOUSEMOTION:
2902 if(event.type ==SDL_MOUSEBUTTONDOWN){
2905 if(event.motion.state != SDL_PRESSED)
2910 if(seek_by_bytes || cur_stream->ic->duration<=0){
2911 uint64_t size= url_fsize(cur_stream->ic->pb);
2912 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2916 int tns, thh, tmm, tss;
2917 tns = cur_stream->ic->duration/1000000LL;
2919 tmm = (tns%3600)/60;
2921 frac = x/cur_stream->width;
2926 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2927 hh, mm, ss, thh, tmm, tss);
2928 ts = frac*cur_stream->ic->duration;
2929 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2930 ts += cur_stream->ic->start_time;
2931 stream_seek(cur_stream, ts, 0, 0);
2935 case SDL_VIDEORESIZE:
2937 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2938 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2939 screen_width = cur_stream->width = event.resize.w;
2940 screen_height= cur_stream->height= event.resize.h;
2947 case FF_ALLOC_EVENT:
2948 video_open(event.user.data1);
2949 alloc_picture(event.user.data1);
2951 case FF_REFRESH_EVENT:
2952 video_refresh_timer(event.user.data1);
2953 cur_stream->refresh=0;
2961 static void opt_frame_size(const char *arg)
2963 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2964 fprintf(stderr, "Incorrect frame size\n");
2967 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2968 fprintf(stderr, "Frame size must be a multiple of 2\n");
2973 static int opt_width(const char *opt, const char *arg)
2975 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2979 static int opt_height(const char *opt, const char *arg)
2981 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2985 static void opt_format(const char *arg)
2987 file_iformat = av_find_input_format(arg);
2988 if (!file_iformat) {
2989 fprintf(stderr, "Unknown input format: %s\n", arg);
2994 static void opt_frame_pix_fmt(const char *arg)
2996 frame_pix_fmt = av_get_pix_fmt(arg);
2999 static int opt_sync(const char *opt, const char *arg)
3001 if (!strcmp(arg, "audio"))
3002 av_sync_type = AV_SYNC_AUDIO_MASTER;
3003 else if (!strcmp(arg, "video"))
3004 av_sync_type = AV_SYNC_VIDEO_MASTER;
3005 else if (!strcmp(arg, "ext"))
3006 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
3008 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
3014 static int opt_seek(const char *opt, const char *arg)
3016 start_time = parse_time_or_die(opt, arg, 1);
3020 static int opt_duration(const char *opt, const char *arg)
3022 duration = parse_time_or_die(opt, arg, 1);
3026 static int opt_debug(const char *opt, const char *arg)
3028 av_log_set_level(99);
3029 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3033 static int opt_vismv(const char *opt, const char *arg)
3035 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
3039 static int opt_thread_count(const char *opt, const char *arg)
3041 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3043 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3048 static const OptionDef options[] = {
3049 #include "cmdutils_common_opts.h"
3050 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3051 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3052 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3053 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3054 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3055 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3056 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3057 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3058 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3059 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3060 { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
3061 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3062 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3063 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3064 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3065 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3066 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3067 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3068 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3069 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3070 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3071 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3072 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3073 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3074 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3075 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3076 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
3077 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
3078 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
3079 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3080 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3081 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3082 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3083 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3084 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3085 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3086 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3088 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3090 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3091 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3095 static void show_usage(void)
3097 printf("Simple media player\n");
3098 printf("usage: ffplay [options] input_file\n");
3102 static void show_help(void)
3105 show_help_options(options, "Main options:\n",
3107 show_help_options(options, "\nAdvanced options:\n",
3108 OPT_EXPERT, OPT_EXPERT);
3109 printf("\nWhile playing:\n"
3111 "f toggle full screen\n"
3113 "a cycle audio channel\n"
3114 "v cycle video channel\n"
3115 "t cycle subtitle channel\n"
3116 "w show audio waves\n"
3117 "s activate frame-step mode\n"
3118 "left/right seek backward/forward 10 seconds\n"
3119 "down/up seek backward/forward 1 minute\n"
3120 "mouse click seek to percentage in file corresponding to fraction of width\n"
3124 static void opt_input_file(const char *filename)
3126 if (input_filename) {
3127 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3128 filename, input_filename);
3131 if (!strcmp(filename, "-"))
3133 input_filename = filename;
3136 /* Called from the main */
3137 int main(int argc, char **argv)
3141 /* register all codecs, demux and protocols */
3142 avcodec_register_all();
3144 avdevice_register_all();
3147 avfilter_register_all();
3151 for(i=0; i<AVMEDIA_TYPE_NB; i++){
3152 avcodec_opts[i]= avcodec_alloc_context2(i);
3154 avformat_opts = avformat_alloc_context();
3155 #if !CONFIG_AVFILTER
3156 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
3161 parse_options(argc, argv, options, opt_input_file);
3163 if (!input_filename) {
3165 fprintf(stderr, "An input file must be specified\n");
3166 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3170 if (display_disable) {
3173 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3174 #if !defined(__MINGW32__) && !defined(__APPLE__)
3175 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3177 if (SDL_Init (flags)) {
3178 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3182 if (!display_disable) {
3183 #if HAVE_SDL_VIDEO_SIZE
3184 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3185 fs_screen_width = vi->current_w;
3186 fs_screen_height = vi->current_h;
3190 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3191 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3192 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3194 av_init_packet(&flush_pkt);
3195 flush_pkt.data= "FLUSH";
3197 cur_stream = stream_open(input_filename, file_iformat);