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/mathematics.h"
29 #include "libavutil/pixdesc.h"
30 #include "libavutil/imgutils.h"
31 #include "libavutil/dict.h"
32 #include "libavutil/parseutils.h"
33 #include "libavutil/samplefmt.h"
34 #include "libavutil/avassert.h"
35 #include "libavformat/avformat.h"
36 #include "libavdevice/avdevice.h"
37 #include "libswscale/swscale.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavutil/opt.h"
40 #include "libavcodec/avfft.h"
43 # include "libavfilter/avcodec.h"
44 # include "libavfilter/avfilter.h"
45 # include "libavfilter/avfiltergraph.h"
46 # include "libavfilter/vsink_buffer.h"
50 #include <SDL_thread.h>
57 const char program_name[] = "ffplay";
58 const int program_birth_year = 2003;
60 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
61 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
64 /* SDL audio buffer size, in samples. Should be small to have precise
65 A/V sync as SDL does not have hardware buffer fullness info. */
66 #define SDL_AUDIO_BUFFER_SIZE 1024
68 /* no AV sync correction is done if below the AV sync threshold */
69 #define AV_SYNC_THRESHOLD 0.01
70 /* no AV correction is done if too big error */
71 #define AV_NOSYNC_THRESHOLD 10.0
73 #define FRAME_SKIP_FACTOR 0.05
75 /* maximum audio speed change to get correct sync */
76 #define SAMPLE_CORRECTION_PERCENT_MAX 10
78 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
79 #define AUDIO_DIFF_AVG_NB 20
81 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
82 #define SAMPLE_ARRAY_SIZE (2*65536)
84 static int sws_flags = SWS_BICUBIC;
86 typedef struct PacketQueue {
87 AVPacketList *first_pkt, *last_pkt;
95 #define VIDEO_PICTURE_QUEUE_SIZE 2
96 #define SUBPICTURE_QUEUE_SIZE 4
98 typedef struct VideoPicture {
99 double pts; ///<presentation time stamp for this picture
100 double target_clock; ///<av_gettime() time at which this should be displayed ideally
101 double duration; ///<expected duration of the frame
102 int64_t pos; ///<byte position in file
104 int width, height; /* source height & width */
106 enum PixelFormat pix_fmt;
109 AVFilterBufferRef *picref;
113 typedef struct SubPicture {
114 double pts; /* presentation time stamp for this picture */
119 AV_SYNC_AUDIO_MASTER, /* default choice */
120 AV_SYNC_VIDEO_MASTER,
121 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
124 typedef struct VideoState {
125 SDL_Thread *read_tid;
126 SDL_Thread *video_tid;
127 SDL_Thread *refresh_tid;
128 AVInputFormat *iformat;
137 int read_pause_return;
143 double external_clock; /* external clock base */
144 int64_t external_clock_time;
147 double audio_diff_cum; /* used for AV difference average computation */
148 double audio_diff_avg_coef;
149 double audio_diff_threshold;
150 int audio_diff_avg_count;
153 int audio_hw_buf_size;
154 /* samples output by the codec. we reserve more space for avsync
156 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
157 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
159 unsigned int audio_buf_size; /* in bytes */
160 int audio_buf_index; /* in bytes */
161 int audio_write_buf_size;
162 AVPacket audio_pkt_temp;
164 enum AVSampleFormat audio_src_fmt;
165 AVAudioConvert *reformat_ctx;
166 double audio_current_pts;
167 double audio_current_pts_drift;
170 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
172 int16_t sample_array[SAMPLE_ARRAY_SIZE];
173 int sample_array_index;
177 FFTSample *rdft_data;
180 SDL_Thread *subtitle_tid;
182 int subtitle_stream_changed;
183 AVStream *subtitle_st;
184 PacketQueue subtitleq;
185 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
186 int subpq_size, subpq_rindex, subpq_windex;
187 SDL_mutex *subpq_mutex;
188 SDL_cond *subpq_cond;
191 double frame_last_pts;
192 double frame_last_delay;
193 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
197 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
198 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
199 int64_t video_current_pos; ///<current displayed file pos
200 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
201 int pictq_size, pictq_rindex, pictq_windex;
202 SDL_mutex *pictq_mutex;
203 SDL_cond *pictq_cond;
205 struct SwsContext *img_convert_ctx;
209 int width, height, xleft, ytop;
213 AVFilterContext *out_video_filter; ///<the last filter in the video chain
217 float skip_frames_index;
221 static int opt_help(const char *opt, const char *arg);
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 audio_disable;
232 static int video_disable;
233 static int wanted_stream[AVMEDIA_TYPE_NB]={
234 [AVMEDIA_TYPE_AUDIO]=-1,
235 [AVMEDIA_TYPE_VIDEO]=-1,
236 [AVMEDIA_TYPE_SUBTITLE]=-1,
238 static int seek_by_bytes=-1;
239 static int display_disable;
240 static int show_status = 1;
241 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
242 static int64_t start_time = AV_NOPTS_VALUE;
243 static int64_t duration = AV_NOPTS_VALUE;
244 static int thread_count = 1;
245 static int workaround_bugs = 1;
247 static int genpts = 0;
248 static int lowres = 0;
249 static int idct = FF_IDCT_AUTO;
250 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
251 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
252 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
253 static int error_recognition = FF_ER_CAREFUL;
254 static int error_concealment = 3;
255 static int decoder_reorder_pts= -1;
257 static int exit_on_keydown;
258 static int exit_on_mousedown;
260 static int framedrop=-1;
261 static enum ShowMode show_mode = SHOW_MODE_NONE;
263 static int rdftspeed=20;
265 static char *vfilters = NULL;
268 /* current context */
269 static int is_full_screen;
270 static int64_t audio_callback_time;
272 static AVPacket flush_pkt;
274 #define FF_ALLOC_EVENT (SDL_USEREVENT)
275 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
276 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
278 static SDL_Surface *screen;
280 void exit_program(int ret)
285 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
289 /* duplicate the packet */
290 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
293 pkt1 = av_malloc(sizeof(AVPacketList));
300 SDL_LockMutex(q->mutex);
306 q->last_pkt->next = pkt1;
309 q->size += pkt1->pkt.size + sizeof(*pkt1);
310 /* XXX: should duplicate packet data in DV case */
311 SDL_CondSignal(q->cond);
313 SDL_UnlockMutex(q->mutex);
317 /* packet queue handling */
318 static void packet_queue_init(PacketQueue *q)
320 memset(q, 0, sizeof(PacketQueue));
321 q->mutex = SDL_CreateMutex();
322 q->cond = SDL_CreateCond();
323 packet_queue_put(q, &flush_pkt);
326 static void packet_queue_flush(PacketQueue *q)
328 AVPacketList *pkt, *pkt1;
330 SDL_LockMutex(q->mutex);
331 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
333 av_free_packet(&pkt->pkt);
340 SDL_UnlockMutex(q->mutex);
343 static void packet_queue_end(PacketQueue *q)
345 packet_queue_flush(q);
346 SDL_DestroyMutex(q->mutex);
347 SDL_DestroyCond(q->cond);
350 static void packet_queue_abort(PacketQueue *q)
352 SDL_LockMutex(q->mutex);
354 q->abort_request = 1;
356 SDL_CondSignal(q->cond);
358 SDL_UnlockMutex(q->mutex);
361 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
362 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
367 SDL_LockMutex(q->mutex);
370 if (q->abort_request) {
377 q->first_pkt = pkt1->next;
381 q->size -= pkt1->pkt.size + sizeof(*pkt1);
390 SDL_CondWait(q->cond, q->mutex);
393 SDL_UnlockMutex(q->mutex);
397 static inline void fill_rectangle(SDL_Surface *screen,
398 int x, int y, int w, int h, int color)
405 SDL_FillRect(screen, &rect, color);
408 #define ALPHA_BLEND(a, oldp, newp, s)\
409 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
411 #define RGBA_IN(r, g, b, a, s)\
413 unsigned int v = ((const uint32_t *)(s))[0];\
414 a = (v >> 24) & 0xff;\
415 r = (v >> 16) & 0xff;\
416 g = (v >> 8) & 0xff;\
420 #define YUVA_IN(y, u, v, a, s, pal)\
422 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
423 a = (val >> 24) & 0xff;\
424 y = (val >> 16) & 0xff;\
425 u = (val >> 8) & 0xff;\
429 #define YUVA_OUT(d, y, u, v, a)\
431 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
437 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
439 int wrap, wrap3, width2, skip2;
440 int y, u, v, a, u1, v1, a1, w, h;
441 uint8_t *lum, *cb, *cr;
444 int dstx, dsty, dstw, dsth;
446 dstw = av_clip(rect->w, 0, imgw);
447 dsth = av_clip(rect->h, 0, imgh);
448 dstx = av_clip(rect->x, 0, imgw - dstw);
449 dsty = av_clip(rect->y, 0, imgh - dsth);
450 lum = dst->data[0] + dsty * dst->linesize[0];
451 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
452 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
454 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
456 wrap = dst->linesize[0];
457 wrap3 = rect->pict.linesize[0];
458 p = rect->pict.data[0];
459 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
467 YUVA_IN(y, u, v, a, p, pal);
468 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
469 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
470 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
476 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
477 YUVA_IN(y, u, v, a, p, pal);
481 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
483 YUVA_IN(y, u, v, a, p + BPP, pal);
487 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
488 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
489 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
496 YUVA_IN(y, u, v, a, p, pal);
497 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
498 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
499 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
503 p += wrap3 - dstw * BPP;
504 lum += wrap - dstw - dstx;
505 cb += dst->linesize[1] - width2 - skip2;
506 cr += dst->linesize[2] - width2 - skip2;
508 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
514 YUVA_IN(y, u, v, a, p, pal);
518 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
521 YUVA_IN(y, u, v, a, p, pal);
525 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
526 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
527 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
533 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
534 YUVA_IN(y, u, v, a, p, pal);
538 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
540 YUVA_IN(y, u, v, a, p + BPP, pal);
544 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
548 YUVA_IN(y, u, v, a, p, pal);
552 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
554 YUVA_IN(y, u, v, a, p + BPP, pal);
558 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
560 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
561 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
565 p += -wrap3 + 2 * BPP;
569 YUVA_IN(y, u, v, a, p, pal);
573 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
576 YUVA_IN(y, u, v, a, p, pal);
580 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
581 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
582 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
588 p += wrap3 + (wrap3 - dstw * BPP);
589 lum += wrap + (wrap - dstw - dstx);
590 cb += dst->linesize[1] - width2 - skip2;
591 cr += dst->linesize[2] - width2 - skip2;
593 /* handle odd height */
600 YUVA_IN(y, u, v, a, p, pal);
601 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
602 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
603 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
609 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
610 YUVA_IN(y, u, v, a, p, pal);
614 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
616 YUVA_IN(y, u, v, a, p + BPP, pal);
620 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
621 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
622 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
629 YUVA_IN(y, u, v, a, p, pal);
630 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
631 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
632 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
637 static void free_subpicture(SubPicture *sp)
639 avsubtitle_free(&sp->sub);
642 static void video_image_display(VideoState *is)
648 int width, height, x, y;
652 vp = &is->pictq[is->pictq_rindex];
655 if (vp->picref->video->sample_aspect_ratio.num == 0)
658 aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio);
661 /* XXX: use variable in the frame */
662 if (is->video_st->sample_aspect_ratio.num)
663 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
664 else if (is->video_st->codec->sample_aspect_ratio.num)
665 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
669 if (aspect_ratio <= 0.0)
671 aspect_ratio *= (float)vp->width / (float)vp->height;
673 if (is->subtitle_st) {
674 if (is->subpq_size > 0) {
675 sp = &is->subpq[is->subpq_rindex];
677 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
678 SDL_LockYUVOverlay (vp->bmp);
680 pict.data[0] = vp->bmp->pixels[0];
681 pict.data[1] = vp->bmp->pixels[2];
682 pict.data[2] = vp->bmp->pixels[1];
684 pict.linesize[0] = vp->bmp->pitches[0];
685 pict.linesize[1] = vp->bmp->pitches[2];
686 pict.linesize[2] = vp->bmp->pitches[1];
688 for (i = 0; i < sp->sub.num_rects; i++)
689 blend_subrect(&pict, sp->sub.rects[i],
690 vp->bmp->w, vp->bmp->h);
692 SDL_UnlockYUVOverlay (vp->bmp);
698 /* XXX: we suppose the screen has a 1.0 pixel ratio */
700 width = ((int)rint(height * aspect_ratio)) & ~1;
701 if (width > is->width) {
703 height = ((int)rint(width / aspect_ratio)) & ~1;
705 x = (is->width - width) / 2;
706 y = (is->height - height) / 2;
707 is->no_background = 0;
708 rect.x = is->xleft + x;
709 rect.y = is->ytop + y;
710 rect.w = FFMAX(width, 1);
711 rect.h = FFMAX(height, 1);
712 SDL_DisplayYUVOverlay(vp->bmp, &rect);
716 static inline int compute_mod(int a, int b)
718 return a < 0 ? a%b + b : a%b;
721 static void video_audio_display(VideoState *s)
723 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
724 int ch, channels, h, h2, bgcolor, fgcolor;
726 int rdft_bits, nb_freq;
728 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
730 nb_freq= 1<<(rdft_bits-1);
732 /* compute display index : center on currently output samples */
733 channels = s->audio_st->codec->channels;
734 nb_display_channels = channels;
736 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
738 delay = s->audio_write_buf_size;
741 /* to be more precise, we take into account the time spent since
742 the last buffer computation */
743 if (audio_callback_time) {
744 time_diff = av_gettime() - audio_callback_time;
745 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
748 delay += 2*data_used;
749 if (delay < data_used)
752 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
753 if (s->show_mode == SHOW_MODE_WAVES) {
755 for(i=0; i<1000; i+=channels){
756 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
757 int a= s->sample_array[idx];
758 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
759 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
760 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
762 if(h<score && (b^c)<0){
769 s->last_i_start = i_start;
771 i_start = s->last_i_start;
774 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
775 if (s->show_mode == SHOW_MODE_WAVES) {
776 fill_rectangle(screen,
777 s->xleft, s->ytop, s->width, s->height,
780 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
782 /* total height for one channel */
783 h = s->height / nb_display_channels;
784 /* graph height / 2 */
786 for(ch = 0;ch < nb_display_channels; ch++) {
788 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
789 for(x = 0; x < s->width; x++) {
790 y = (s->sample_array[i] * h2) >> 15;
797 fill_rectangle(screen,
798 s->xleft + x, ys, 1, y,
801 if (i >= SAMPLE_ARRAY_SIZE)
802 i -= SAMPLE_ARRAY_SIZE;
806 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
808 for(ch = 1;ch < nb_display_channels; ch++) {
809 y = s->ytop + ch * h;
810 fill_rectangle(screen,
811 s->xleft, y, s->width, 1,
814 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
816 nb_display_channels= FFMIN(nb_display_channels, 2);
817 if(rdft_bits != s->rdft_bits){
818 av_rdft_end(s->rdft);
819 av_free(s->rdft_data);
820 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
821 s->rdft_bits= rdft_bits;
822 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
826 for(ch = 0;ch < nb_display_channels; ch++) {
827 data[ch] = s->rdft_data + 2*nb_freq*ch;
829 for(x = 0; x < 2*nb_freq; x++) {
830 double w= (x-nb_freq)*(1.0/nb_freq);
831 data[ch][x]= s->sample_array[i]*(1.0-w*w);
833 if (i >= SAMPLE_ARRAY_SIZE)
834 i -= SAMPLE_ARRAY_SIZE;
836 av_rdft_calc(s->rdft, data[ch]);
838 //least efficient way to do this, we should of course directly access it but its more than fast enough
839 for(y=0; y<s->height; y++){
840 double w= 1/sqrt(nb_freq);
841 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]));
842 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
843 + data[1][2*y+1]*data[1][2*y+1])) : a;
846 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
848 fill_rectangle(screen,
849 s->xpos, s->height-y, 1, 1,
853 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
855 if(s->xpos >= s->width)
860 static void stream_close(VideoState *is)
864 /* XXX: use a special url_shutdown call to abort parse cleanly */
865 is->abort_request = 1;
866 SDL_WaitThread(is->read_tid, NULL);
867 SDL_WaitThread(is->refresh_tid, NULL);
869 /* free all pictures */
870 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
874 avfilter_unref_buffer(vp->picref);
879 SDL_FreeYUVOverlay(vp->bmp);
883 SDL_DestroyMutex(is->pictq_mutex);
884 SDL_DestroyCond(is->pictq_cond);
885 SDL_DestroyMutex(is->subpq_mutex);
886 SDL_DestroyCond(is->subpq_cond);
888 if (is->img_convert_ctx)
889 sws_freeContext(is->img_convert_ctx);
894 static void do_exit(VideoState *is)
899 av_lockmgr_register(NULL);
907 av_log(NULL, AV_LOG_QUIET, "%s", "");
911 static int video_open(VideoState *is){
912 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
915 if(is_full_screen) flags |= SDL_FULLSCREEN;
916 else flags |= SDL_RESIZABLE;
918 if (is_full_screen && fs_screen_width) {
920 h = fs_screen_height;
921 } else if(!is_full_screen && screen_width){
925 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
926 w = is->out_video_filter->inputs[0]->w;
927 h = is->out_video_filter->inputs[0]->h;
929 }else if (is->video_st && is->video_st->codec->width){
930 w = is->video_st->codec->width;
931 h = is->video_st->codec->height;
937 if(screen && is->width == screen->w && screen->w == w
938 && is->height== screen->h && screen->h == h)
942 screen = SDL_SetVideoMode(w, h, 0, flags);
944 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
945 screen = SDL_SetVideoMode(w, h, 24, flags);
948 fprintf(stderr, "SDL: could not set video mode - exiting\n");
952 window_title = input_filename;
953 SDL_WM_SetCaption(window_title, window_title);
955 is->width = screen->w;
956 is->height = screen->h;
961 /* display the current picture, if any */
962 static void video_display(VideoState *is)
966 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
967 video_audio_display(is);
968 else if (is->video_st)
969 video_image_display(is);
972 static int refresh_thread(void *opaque)
974 VideoState *is= opaque;
975 while(!is->abort_request){
977 event.type = FF_REFRESH_EVENT;
978 event.user.data1 = opaque;
981 SDL_PushEvent(&event);
983 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
984 usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
989 /* get the current audio clock value */
990 static double get_audio_clock(VideoState *is)
993 return is->audio_current_pts;
995 return is->audio_current_pts_drift + av_gettime() / 1000000.0;
999 /* get the current video clock value */
1000 static double get_video_clock(VideoState *is)
1003 return is->video_current_pts;
1005 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1009 /* get the current external clock value */
1010 static double get_external_clock(VideoState *is)
1014 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1017 /* get the current master clock value */
1018 static double get_master_clock(VideoState *is)
1022 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1024 val = get_video_clock(is);
1026 val = get_audio_clock(is);
1027 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1029 val = get_audio_clock(is);
1031 val = get_video_clock(is);
1033 val = get_external_clock(is);
1038 /* seek in the stream */
1039 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1041 if (!is->seek_req) {
1044 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1046 is->seek_flags |= AVSEEK_FLAG_BYTE;
1051 /* pause or resume the video */
1052 static void stream_toggle_pause(VideoState *is)
1055 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1056 if(is->read_pause_return != AVERROR(ENOSYS)){
1057 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1059 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1061 is->paused = !is->paused;
1064 static double compute_target_time(double frame_current_pts, VideoState *is)
1066 double delay, sync_threshold, diff;
1068 /* compute nominal delay */
1069 delay = frame_current_pts - is->frame_last_pts;
1070 if (delay <= 0 || delay >= 10.0) {
1071 /* if incorrect delay, use previous one */
1072 delay = is->frame_last_delay;
1074 is->frame_last_delay = delay;
1076 is->frame_last_pts = frame_current_pts;
1078 /* update delay to follow master synchronisation source */
1079 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1080 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1081 /* if video is slave, we try to correct big delays by
1082 duplicating or deleting a frame */
1083 diff = get_video_clock(is) - get_master_clock(is);
1085 /* skip or repeat frame. We take into account the
1086 delay to compute the threshold. I still don't know
1087 if it is the best guess */
1088 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1089 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1090 if (diff <= -sync_threshold)
1092 else if (diff >= sync_threshold)
1096 is->frame_timer += delay;
1098 av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1099 delay, frame_current_pts, -diff);
1101 return is->frame_timer;
1104 /* called to display each frame */
1105 static void video_refresh(void *opaque)
1107 VideoState *is = opaque;
1110 SubPicture *sp, *sp2;
1114 if (is->pictq_size == 0) {
1115 //nothing to do, no picture to display in the que
1117 double time= av_gettime()/1000000.0;
1119 /* dequeue the picture */
1120 vp = &is->pictq[is->pictq_rindex];
1122 if(time < vp->target_clock)
1124 /* update current video pts */
1125 is->video_current_pts = vp->pts;
1126 is->video_current_pts_drift = is->video_current_pts - time;
1127 is->video_current_pos = vp->pos;
1128 if(is->pictq_size > 1){
1129 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1130 assert(nextvp->target_clock >= vp->target_clock);
1131 next_target= nextvp->target_clock;
1133 next_target= vp->target_clock + vp->duration;
1135 if((framedrop>0 || (framedrop && is->audio_st)) && time > next_target){
1136 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1137 if(is->pictq_size > 1 || time > next_target + 0.5){
1138 /* update queue size and signal for next picture */
1139 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1140 is->pictq_rindex = 0;
1142 SDL_LockMutex(is->pictq_mutex);
1144 SDL_CondSignal(is->pictq_cond);
1145 SDL_UnlockMutex(is->pictq_mutex);
1150 if(is->subtitle_st) {
1151 if (is->subtitle_stream_changed) {
1152 SDL_LockMutex(is->subpq_mutex);
1154 while (is->subpq_size) {
1155 free_subpicture(&is->subpq[is->subpq_rindex]);
1157 /* update queue size and signal for next picture */
1158 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1159 is->subpq_rindex = 0;
1163 is->subtitle_stream_changed = 0;
1165 SDL_CondSignal(is->subpq_cond);
1166 SDL_UnlockMutex(is->subpq_mutex);
1168 if (is->subpq_size > 0) {
1169 sp = &is->subpq[is->subpq_rindex];
1171 if (is->subpq_size > 1)
1172 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1176 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1177 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1179 free_subpicture(sp);
1181 /* update queue size and signal for next picture */
1182 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1183 is->subpq_rindex = 0;
1185 SDL_LockMutex(is->subpq_mutex);
1187 SDL_CondSignal(is->subpq_cond);
1188 SDL_UnlockMutex(is->subpq_mutex);
1194 /* display picture */
1195 if (!display_disable)
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);
1207 } else if (is->audio_st) {
1208 /* draw the next audio frame */
1210 /* if only audio stream, then display the audio bars (better
1211 than nothing, just to test the implementation */
1213 /* display picture */
1214 if (!display_disable)
1218 static int64_t last_time;
1220 int aqsize, vqsize, sqsize;
1223 cur_time = av_gettime();
1224 if (!last_time || (cur_time - last_time) >= 30000) {
1229 aqsize = is->audioq.size;
1231 vqsize = is->videoq.size;
1232 if (is->subtitle_st)
1233 sqsize = is->subtitleq.size;
1235 if (is->audio_st && is->video_st)
1236 av_diff = get_audio_clock(is) - get_video_clock(is);
1237 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1238 get_master_clock(is),
1240 FFMAX(is->skip_frames-1, 0),
1244 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1245 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1247 last_time = cur_time;
1252 /* allocate a picture (needs to do that in main thread to avoid
1253 potential locking problems */
1254 static void alloc_picture(void *opaque)
1256 VideoState *is = opaque;
1259 vp = &is->pictq[is->pictq_windex];
1262 SDL_FreeYUVOverlay(vp->bmp);
1266 avfilter_unref_buffer(vp->picref);
1269 vp->width = is->out_video_filter->inputs[0]->w;
1270 vp->height = is->out_video_filter->inputs[0]->h;
1271 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1273 vp->width = is->video_st->codec->width;
1274 vp->height = is->video_st->codec->height;
1275 vp->pix_fmt = is->video_st->codec->pix_fmt;
1278 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1281 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1282 /* SDL allocates a buffer smaller than requested if the video
1283 * overlay hardware is unable to support the requested size. */
1284 fprintf(stderr, "Error: the video system does not support an image\n"
1285 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1286 "to reduce the image size.\n", vp->width, vp->height );
1290 SDL_LockMutex(is->pictq_mutex);
1292 SDL_CondSignal(is->pictq_cond);
1293 SDL_UnlockMutex(is->pictq_mutex);
1296 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1299 double frame_delay, pts = pts1;
1301 /* compute the exact PTS for the picture if it is omitted in the stream
1302 * pts1 is the dts of the pkt / pts of the frame */
1304 /* update video clock with pts, if present */
1305 is->video_clock = pts;
1307 pts = is->video_clock;
1309 /* update video clock for next frame */
1310 frame_delay = av_q2d(is->video_st->codec->time_base);
1311 /* for MPEG2, the frame can be repeated, so we update the
1312 clock accordingly */
1313 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1314 is->video_clock += frame_delay;
1316 #if defined(DEBUG_SYNC) && 0
1317 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1318 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1321 /* wait until we have space to put a new picture */
1322 SDL_LockMutex(is->pictq_mutex);
1324 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1325 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1327 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1328 !is->videoq.abort_request) {
1329 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1331 SDL_UnlockMutex(is->pictq_mutex);
1333 if (is->videoq.abort_request)
1336 vp = &is->pictq[is->pictq_windex];
1338 vp->duration = frame_delay;
1340 /* alloc or resize hardware picture buffer */
1343 vp->width != is->out_video_filter->inputs[0]->w ||
1344 vp->height != is->out_video_filter->inputs[0]->h) {
1346 vp->width != is->video_st->codec->width ||
1347 vp->height != is->video_st->codec->height) {
1353 /* the allocation must be done in the main thread to avoid
1355 event.type = FF_ALLOC_EVENT;
1356 event.user.data1 = is;
1357 SDL_PushEvent(&event);
1359 /* wait until the picture is allocated */
1360 SDL_LockMutex(is->pictq_mutex);
1361 while (!vp->allocated && !is->videoq.abort_request) {
1362 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1364 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1365 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1366 while (!vp->allocated) {
1367 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1370 SDL_UnlockMutex(is->pictq_mutex);
1372 if (is->videoq.abort_request)
1376 /* if the frame is not skipped, then display it */
1381 avfilter_unref_buffer(vp->picref);
1382 vp->picref = src_frame->opaque;
1385 /* get a pointer on the bitmap */
1386 SDL_LockYUVOverlay (vp->bmp);
1388 memset(&pict,0,sizeof(AVPicture));
1389 pict.data[0] = vp->bmp->pixels[0];
1390 pict.data[1] = vp->bmp->pixels[2];
1391 pict.data[2] = vp->bmp->pixels[1];
1393 pict.linesize[0] = vp->bmp->pitches[0];
1394 pict.linesize[1] = vp->bmp->pitches[2];
1395 pict.linesize[2] = vp->bmp->pitches[1];
1398 //FIXME use direct rendering
1399 av_picture_copy(&pict, (AVPicture *)src_frame,
1400 vp->pix_fmt, vp->width, vp->height);
1402 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1403 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1404 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1405 PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1406 if (is->img_convert_ctx == NULL) {
1407 fprintf(stderr, "Cannot initialize the conversion context\n");
1410 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1411 0, vp->height, pict.data, pict.linesize);
1413 /* update the bitmap content */
1414 SDL_UnlockYUVOverlay(vp->bmp);
1419 /* now we can update the picture count */
1420 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1421 is->pictq_windex = 0;
1422 SDL_LockMutex(is->pictq_mutex);
1423 vp->target_clock= compute_target_time(vp->pts, is);
1426 SDL_UnlockMutex(is->pictq_mutex);
1431 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1435 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1438 if (pkt->data == flush_pkt.data) {
1439 avcodec_flush_buffers(is->video_st->codec);
1441 SDL_LockMutex(is->pictq_mutex);
1442 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1443 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1444 is->pictq[i].target_clock= 0;
1446 while (is->pictq_size && !is->videoq.abort_request) {
1447 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1449 is->video_current_pos = -1;
1450 SDL_UnlockMutex(is->pictq_mutex);
1452 is->frame_last_pts = AV_NOPTS_VALUE;
1453 is->frame_last_delay = 0;
1454 is->frame_timer = (double)av_gettime() / 1000000.0;
1455 is->skip_frames = 1;
1456 is->skip_frames_index = 0;
1460 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1463 if (decoder_reorder_pts == -1) {
1464 *pts = frame->best_effort_timestamp;
1465 } else if (decoder_reorder_pts) {
1466 *pts = frame->pkt_pts;
1468 *pts = frame->pkt_dts;
1471 if (*pts == AV_NOPTS_VALUE) {
1475 is->skip_frames_index += 1;
1476 if(is->skip_frames_index >= is->skip_frames){
1477 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1492 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1494 AVFilterContext *ctx = codec->opaque;
1495 AVFilterBufferRef *ref;
1496 int perms = AV_PERM_WRITE;
1497 int i, w, h, stride[4];
1501 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1503 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1504 perms |= AV_PERM_NEG_LINESIZES;
1506 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1507 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1508 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1509 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1511 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1516 if(av_image_check_size(w, h, 0, codec))
1519 avcodec_align_dimensions2(codec, &w, &h, stride);
1520 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1524 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1527 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
1528 ref->video->w = codec->width;
1529 ref->video->h = codec->height;
1530 for(i = 0; i < 4; i ++) {
1531 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1532 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1535 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1537 pic->data[i] = ref->data[i];
1538 pic->linesize[i] = ref->linesize[i];
1542 pic->type = FF_BUFFER_TYPE_USER;
1543 pic->reordered_opaque = codec->reordered_opaque;
1544 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1545 else pic->pkt_pts = AV_NOPTS_VALUE;
1549 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1551 memset(pic->data, 0, sizeof(pic->data));
1552 avfilter_unref_buffer(pic->opaque);
1555 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1557 AVFilterBufferRef *ref = pic->opaque;
1559 if (pic->data[0] == NULL) {
1560 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1561 return codec->get_buffer(codec, pic);
1564 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1565 (codec->pix_fmt != ref->format)) {
1566 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1570 pic->reordered_opaque = codec->reordered_opaque;
1571 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1572 else pic->pkt_pts = AV_NOPTS_VALUE;
1576 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1578 FilterPriv *priv = ctx->priv;
1579 AVCodecContext *codec;
1580 if(!opaque) return -1;
1583 codec = priv->is->video_st->codec;
1584 codec->opaque = ctx;
1585 if((codec->codec->capabilities & CODEC_CAP_DR1)
1587 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1589 codec->get_buffer = input_get_buffer;
1590 codec->release_buffer = input_release_buffer;
1591 codec->reget_buffer = input_reget_buffer;
1592 codec->thread_safe_callbacks = 1;
1595 priv->frame = avcodec_alloc_frame();
1600 static void input_uninit(AVFilterContext *ctx)
1602 FilterPriv *priv = ctx->priv;
1603 av_free(priv->frame);
1606 static int input_request_frame(AVFilterLink *link)
1608 FilterPriv *priv = link->src->priv;
1609 AVFilterBufferRef *picref;
1614 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1615 av_free_packet(&pkt);
1619 if(priv->use_dr1 && priv->frame->opaque) {
1620 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1622 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1623 av_image_copy(picref->data, picref->linesize,
1624 priv->frame->data, priv->frame->linesize,
1625 picref->format, link->w, link->h);
1627 av_free_packet(&pkt);
1629 avfilter_copy_frame_props(picref, priv->frame);
1632 avfilter_start_frame(link, picref);
1633 avfilter_draw_slice(link, 0, link->h, 1);
1634 avfilter_end_frame(link);
1639 static int input_query_formats(AVFilterContext *ctx)
1641 FilterPriv *priv = ctx->priv;
1642 enum PixelFormat pix_fmts[] = {
1643 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1646 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
1650 static int input_config_props(AVFilterLink *link)
1652 FilterPriv *priv = link->src->priv;
1653 AVStream *s = priv->is->video_st;
1655 link->w = s->codec->width;
1656 link->h = s->codec->height;
1657 link->sample_aspect_ratio = s->sample_aspect_ratio.num ?
1658 s->sample_aspect_ratio : s->codec->sample_aspect_ratio;
1659 link->time_base = s->time_base;
1664 static AVFilter input_filter =
1666 .name = "ffplay_input",
1668 .priv_size = sizeof(FilterPriv),
1671 .uninit = input_uninit,
1673 .query_formats = input_query_formats,
1675 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1676 .outputs = (AVFilterPad[]) {{ .name = "default",
1677 .type = AVMEDIA_TYPE_VIDEO,
1678 .request_frame = input_request_frame,
1679 .config_props = input_config_props, },
1683 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1685 char sws_flags_str[128];
1687 enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1688 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1689 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1690 graph->scale_sws_opts = av_strdup(sws_flags_str);
1692 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1693 NULL, is, graph)) < 0)
1695 if ((ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
1696 NULL, pix_fmts, graph)) < 0)
1700 AVFilterInOut *outputs = avfilter_inout_alloc();
1701 AVFilterInOut *inputs = avfilter_inout_alloc();
1703 outputs->name = av_strdup("in");
1704 outputs->filter_ctx = filt_src;
1705 outputs->pad_idx = 0;
1706 outputs->next = NULL;
1708 inputs->name = av_strdup("out");
1709 inputs->filter_ctx = filt_out;
1710 inputs->pad_idx = 0;
1711 inputs->next = NULL;
1713 if ((ret = avfilter_graph_parse(graph, vfilters, &inputs, &outputs, NULL)) < 0)
1716 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1720 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1723 is->out_video_filter = filt_out;
1728 #endif /* CONFIG_AVFILTER */
1730 static int video_thread(void *arg)
1732 VideoState *is = arg;
1733 AVFrame *frame= avcodec_alloc_frame();
1734 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1739 AVFilterGraph *graph = avfilter_graph_alloc();
1740 AVFilterContext *filt_out = NULL;
1741 int last_w = is->video_st->codec->width;
1742 int last_h = is->video_st->codec->height;
1744 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1746 filt_out = is->out_video_filter;
1750 #if !CONFIG_AVFILTER
1753 AVFilterBufferRef *picref;
1754 AVRational tb = filt_out->inputs[0]->time_base;
1756 while (is->paused && !is->videoq.abort_request)
1759 if ( last_w != is->video_st->codec->width
1760 || last_h != is->video_st->codec->height) {
1761 av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
1762 last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
1763 avfilter_graph_free(&graph);
1764 graph = avfilter_graph_alloc();
1765 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1767 filt_out = is->out_video_filter;
1768 last_w = is->video_st->codec->width;
1769 last_h = is->video_st->codec->height;
1771 ret = av_vsink_buffer_get_video_buffer_ref(filt_out, &picref, 0);
1773 avfilter_fill_frame_from_video_buffer_ref(frame, picref);
1774 pts_int = picref->pts;
1776 frame->opaque = picref;
1779 if (av_cmp_q(tb, is->video_st->time_base)) {
1780 av_unused int64_t pts1 = pts_int;
1781 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1782 av_dlog(NULL, "video_thread(): "
1783 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1784 tb.num, tb.den, pts1,
1785 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1788 ret = get_video_frame(is, frame, &pts_int, &pkt);
1790 av_free_packet(&pkt);
1793 if (ret < 0) goto the_end;
1800 pts = pts_int*av_q2d(is->video_st->time_base);
1802 ret = queue_picture(is, frame, pts, pos);
1808 stream_toggle_pause(is);
1812 avfilter_graph_free(&graph);
1818 static int subtitle_thread(void *arg)
1820 VideoState *is = arg;
1822 AVPacket pkt1, *pkt = &pkt1;
1826 int r, g, b, y, u, v, a;
1829 while (is->paused && !is->subtitleq.abort_request) {
1832 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1835 if(pkt->data == flush_pkt.data){
1836 avcodec_flush_buffers(is->subtitle_st->codec);
1839 SDL_LockMutex(is->subpq_mutex);
1840 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1841 !is->subtitleq.abort_request) {
1842 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1844 SDL_UnlockMutex(is->subpq_mutex);
1846 if (is->subtitleq.abort_request)
1849 sp = &is->subpq[is->subpq_windex];
1851 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1852 this packet, if any */
1854 if (pkt->pts != AV_NOPTS_VALUE)
1855 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1857 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1858 &got_subtitle, pkt);
1860 if (got_subtitle && sp->sub.format == 0) {
1863 for (i = 0; i < sp->sub.num_rects; i++)
1865 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1867 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1868 y = RGB_TO_Y_CCIR(r, g, b);
1869 u = RGB_TO_U_CCIR(r, g, b, 0);
1870 v = RGB_TO_V_CCIR(r, g, b, 0);
1871 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1875 /* now we can update the picture count */
1876 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1877 is->subpq_windex = 0;
1878 SDL_LockMutex(is->subpq_mutex);
1880 SDL_UnlockMutex(is->subpq_mutex);
1882 av_free_packet(pkt);
1887 /* copy samples for viewing in editor window */
1888 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1892 size = samples_size / sizeof(short);
1894 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1897 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1899 is->sample_array_index += len;
1900 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1901 is->sample_array_index = 0;
1906 /* return the new audio buffer size (samples can be added or deleted
1907 to get better sync if video or external master clock) */
1908 static int synchronize_audio(VideoState *is, short *samples,
1909 int samples_size1, double pts)
1911 int n, samples_size;
1914 n = 2 * is->audio_st->codec->channels;
1915 samples_size = samples_size1;
1917 /* if not master, then we try to remove or add samples to correct the clock */
1918 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1919 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1920 double diff, avg_diff;
1921 int wanted_size, min_size, max_size, nb_samples;
1923 ref_clock = get_master_clock(is);
1924 diff = get_audio_clock(is) - ref_clock;
1926 if (diff < AV_NOSYNC_THRESHOLD) {
1927 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1928 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1929 /* not enough measures to have a correct estimate */
1930 is->audio_diff_avg_count++;
1932 /* estimate the A-V difference */
1933 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1935 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1936 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1937 nb_samples = samples_size / n;
1939 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1940 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1941 if (wanted_size < min_size)
1942 wanted_size = min_size;
1943 else if (wanted_size > max_size)
1944 wanted_size = max_size;
1946 /* add or remove samples to correction the synchro */
1947 if (wanted_size < samples_size) {
1948 /* remove samples */
1949 samples_size = wanted_size;
1950 } else if (wanted_size > samples_size) {
1951 uint8_t *samples_end, *q;
1955 nb = (samples_size - wanted_size);
1956 samples_end = (uint8_t *)samples + samples_size - n;
1957 q = samples_end + n;
1959 memcpy(q, samples_end, n);
1963 samples_size = wanted_size;
1966 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1967 diff, avg_diff, samples_size - samples_size1,
1968 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1971 /* too big difference : may be initial PTS errors, so
1973 is->audio_diff_avg_count = 0;
1974 is->audio_diff_cum = 0;
1978 return samples_size;
1981 /* decode one audio frame and returns its uncompressed size */
1982 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1984 AVPacket *pkt_temp = &is->audio_pkt_temp;
1985 AVPacket *pkt = &is->audio_pkt;
1986 AVCodecContext *dec= is->audio_st->codec;
1987 int n, len1, data_size;
1991 /* NOTE: the audio packet can contain several frames */
1992 while (pkt_temp->size > 0) {
1993 data_size = sizeof(is->audio_buf1);
1994 len1 = avcodec_decode_audio3(dec,
1995 (int16_t *)is->audio_buf1, &data_size,
1998 /* if error, we skip the frame */
2003 pkt_temp->data += len1;
2004 pkt_temp->size -= len1;
2008 if (dec->sample_fmt != is->audio_src_fmt) {
2009 if (is->reformat_ctx)
2010 av_audio_convert_free(is->reformat_ctx);
2011 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2012 dec->sample_fmt, 1, NULL, 0);
2013 if (!is->reformat_ctx) {
2014 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2015 av_get_sample_fmt_name(dec->sample_fmt),
2016 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2019 is->audio_src_fmt= dec->sample_fmt;
2022 if (is->reformat_ctx) {
2023 const void *ibuf[6]= {is->audio_buf1};
2024 void *obuf[6]= {is->audio_buf2};
2025 int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)};
2026 int ostride[6]= {2};
2027 int len= data_size/istride[0];
2028 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2029 printf("av_audio_convert() failed\n");
2032 is->audio_buf= is->audio_buf2;
2033 /* FIXME: existing code assume that data_size equals framesize*channels*2
2034 remove this legacy cruft */
2037 is->audio_buf= is->audio_buf1;
2040 /* if no pts, then compute it */
2041 pts = is->audio_clock;
2043 n = 2 * dec->channels;
2044 is->audio_clock += (double)data_size /
2045 (double)(n * dec->sample_rate);
2048 static double last_clock;
2049 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2050 is->audio_clock - last_clock,
2051 is->audio_clock, pts);
2052 last_clock = is->audio_clock;
2058 /* free the current packet */
2060 av_free_packet(pkt);
2062 if (is->paused || is->audioq.abort_request) {
2066 /* read next packet */
2067 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2069 if(pkt->data == flush_pkt.data){
2070 avcodec_flush_buffers(dec);
2074 pkt_temp->data = pkt->data;
2075 pkt_temp->size = pkt->size;
2077 /* if update the audio clock with the pts */
2078 if (pkt->pts != AV_NOPTS_VALUE) {
2079 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2084 /* prepare a new audio buffer */
2085 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2087 VideoState *is = opaque;
2088 int audio_size, len1;
2092 audio_callback_time = av_gettime();
2095 if (is->audio_buf_index >= is->audio_buf_size) {
2096 audio_size = audio_decode_frame(is, &pts);
2097 if (audio_size < 0) {
2098 /* if error, just output silence */
2099 is->audio_buf = is->audio_buf1;
2100 is->audio_buf_size = 1024;
2101 memset(is->audio_buf, 0, is->audio_buf_size);
2103 if (is->show_mode != SHOW_MODE_VIDEO)
2104 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2105 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2107 is->audio_buf_size = audio_size;
2109 is->audio_buf_index = 0;
2111 len1 = is->audio_buf_size - is->audio_buf_index;
2114 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2117 is->audio_buf_index += len1;
2119 bytes_per_sec = is->audio_st->codec->sample_rate *
2120 2 * is->audio_st->codec->channels;
2121 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2122 /* Let's assume the audio driver that is used by SDL has two periods. */
2123 is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
2124 is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
2127 /* open a given stream. Return 0 if OK */
2128 static int stream_component_open(VideoState *is, int stream_index)
2130 AVFormatContext *ic = is->ic;
2131 AVCodecContext *avctx;
2133 SDL_AudioSpec wanted_spec, spec;
2135 AVDictionaryEntry *t = NULL;
2137 if (stream_index < 0 || stream_index >= ic->nb_streams)
2139 avctx = ic->streams[stream_index]->codec;
2141 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index]);
2143 /* prepare audio output */
2144 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2145 if (avctx->channels > 0) {
2146 avctx->request_channels = FFMIN(2, avctx->channels);
2148 avctx->request_channels = 2;
2152 codec = avcodec_find_decoder(avctx->codec_id);
2156 avctx->workaround_bugs = workaround_bugs;
2157 avctx->lowres = lowres;
2158 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2159 avctx->idct_algo= idct;
2160 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2161 avctx->skip_frame= skip_frame;
2162 avctx->skip_idct= skip_idct;
2163 avctx->skip_loop_filter= skip_loop_filter;
2164 avctx->error_recognition= error_recognition;
2165 avctx->error_concealment= error_concealment;
2166 avctx->thread_count= thread_count;
2168 if(codec->capabilities & CODEC_CAP_DR1)
2169 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2172 avcodec_open2(avctx, codec, &opts) < 0)
2174 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2175 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2176 return AVERROR_OPTION_NOT_FOUND;
2179 /* prepare audio output */
2180 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2181 if(avctx->sample_rate <= 0 || avctx->channels <= 0){
2182 fprintf(stderr, "Invalid sample rate or channel count\n");
2185 wanted_spec.freq = avctx->sample_rate;
2186 wanted_spec.format = AUDIO_S16SYS;
2187 wanted_spec.channels = avctx->channels;
2188 wanted_spec.silence = 0;
2189 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2190 wanted_spec.callback = sdl_audio_callback;
2191 wanted_spec.userdata = is;
2192 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2193 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2196 is->audio_hw_buf_size = spec.size;
2197 is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2200 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2201 switch(avctx->codec_type) {
2202 case AVMEDIA_TYPE_AUDIO:
2203 is->audio_stream = stream_index;
2204 is->audio_st = ic->streams[stream_index];
2205 is->audio_buf_size = 0;
2206 is->audio_buf_index = 0;
2208 /* init averaging filter */
2209 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2210 is->audio_diff_avg_count = 0;
2211 /* since we do not have a precise anough audio fifo fullness,
2212 we correct audio sync only if larger than this threshold */
2213 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2215 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2216 packet_queue_init(&is->audioq);
2219 case AVMEDIA_TYPE_VIDEO:
2220 is->video_stream = stream_index;
2221 is->video_st = ic->streams[stream_index];
2223 packet_queue_init(&is->videoq);
2224 is->video_tid = SDL_CreateThread(video_thread, is);
2226 case AVMEDIA_TYPE_SUBTITLE:
2227 is->subtitle_stream = stream_index;
2228 is->subtitle_st = ic->streams[stream_index];
2229 packet_queue_init(&is->subtitleq);
2231 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2239 static void stream_component_close(VideoState *is, int stream_index)
2241 AVFormatContext *ic = is->ic;
2242 AVCodecContext *avctx;
2244 if (stream_index < 0 || stream_index >= ic->nb_streams)
2246 avctx = ic->streams[stream_index]->codec;
2248 switch(avctx->codec_type) {
2249 case AVMEDIA_TYPE_AUDIO:
2250 packet_queue_abort(&is->audioq);
2254 packet_queue_end(&is->audioq);
2255 if (is->reformat_ctx)
2256 av_audio_convert_free(is->reformat_ctx);
2257 is->reformat_ctx = NULL;
2259 case AVMEDIA_TYPE_VIDEO:
2260 packet_queue_abort(&is->videoq);
2262 /* note: we also signal this mutex to make sure we deblock the
2263 video thread in all cases */
2264 SDL_LockMutex(is->pictq_mutex);
2265 SDL_CondSignal(is->pictq_cond);
2266 SDL_UnlockMutex(is->pictq_mutex);
2268 SDL_WaitThread(is->video_tid, NULL);
2270 packet_queue_end(&is->videoq);
2272 case AVMEDIA_TYPE_SUBTITLE:
2273 packet_queue_abort(&is->subtitleq);
2275 /* note: we also signal this mutex to make sure we deblock the
2276 video thread in all cases */
2277 SDL_LockMutex(is->subpq_mutex);
2278 is->subtitle_stream_changed = 1;
2280 SDL_CondSignal(is->subpq_cond);
2281 SDL_UnlockMutex(is->subpq_mutex);
2283 SDL_WaitThread(is->subtitle_tid, NULL);
2285 packet_queue_end(&is->subtitleq);
2291 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2292 avcodec_close(avctx);
2293 switch(avctx->codec_type) {
2294 case AVMEDIA_TYPE_AUDIO:
2295 is->audio_st = NULL;
2296 is->audio_stream = -1;
2298 case AVMEDIA_TYPE_VIDEO:
2299 is->video_st = NULL;
2300 is->video_stream = -1;
2302 case AVMEDIA_TYPE_SUBTITLE:
2303 is->subtitle_st = NULL;
2304 is->subtitle_stream = -1;
2311 /* since we have only one decoding thread, we can use a global
2312 variable instead of a thread local variable */
2313 static VideoState *global_video_state;
2315 static int decode_interrupt_cb(void)
2317 return (global_video_state && global_video_state->abort_request);
2320 /* this thread gets the stream from the disk or the network */
2321 static int read_thread(void *arg)
2323 VideoState *is = arg;
2324 AVFormatContext *ic = NULL;
2326 int st_index[AVMEDIA_TYPE_NB];
2327 AVPacket pkt1, *pkt = &pkt1;
2329 int pkt_in_play_range = 0;
2330 AVDictionaryEntry *t;
2331 AVDictionary **opts;
2332 int orig_nb_streams;
2334 memset(st_index, -1, sizeof(st_index));
2335 is->video_stream = -1;
2336 is->audio_stream = -1;
2337 is->subtitle_stream = -1;
2339 global_video_state = is;
2340 avio_set_interrupt_cb(decode_interrupt_cb);
2342 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2344 print_error(is->filename, err);
2348 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2349 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2350 ret = AVERROR_OPTION_NOT_FOUND;
2356 ic->flags |= AVFMT_FLAG_GENPTS;
2358 opts = setup_find_stream_info_opts(ic, codec_opts);
2359 orig_nb_streams = ic->nb_streams;
2361 err = avformat_find_stream_info(ic, opts);
2363 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2367 for (i = 0; i < orig_nb_streams; i++)
2368 av_dict_free(&opts[i]);
2372 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2375 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2377 /* if seeking requested, we execute it */
2378 if (start_time != AV_NOPTS_VALUE) {
2381 timestamp = start_time;
2382 /* add the stream start time */
2383 if (ic->start_time != AV_NOPTS_VALUE)
2384 timestamp += ic->start_time;
2385 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2387 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2388 is->filename, (double)timestamp / AV_TIME_BASE);
2392 for (i = 0; i < ic->nb_streams; i++)
2393 ic->streams[i]->discard = AVDISCARD_ALL;
2395 st_index[AVMEDIA_TYPE_VIDEO] =
2396 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2397 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2399 st_index[AVMEDIA_TYPE_AUDIO] =
2400 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2401 wanted_stream[AVMEDIA_TYPE_AUDIO],
2402 st_index[AVMEDIA_TYPE_VIDEO],
2405 st_index[AVMEDIA_TYPE_SUBTITLE] =
2406 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2407 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2408 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2409 st_index[AVMEDIA_TYPE_AUDIO] :
2410 st_index[AVMEDIA_TYPE_VIDEO]),
2413 av_dump_format(ic, 0, is->filename, 0);
2416 is->show_mode = show_mode;
2418 /* open the streams */
2419 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2420 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2424 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2425 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2427 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2428 if (is->show_mode == SHOW_MODE_NONE)
2429 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2431 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2432 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2435 if (is->video_stream < 0 && is->audio_stream < 0) {
2436 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2442 if (is->abort_request)
2444 if (is->paused != is->last_paused) {
2445 is->last_paused = is->paused;
2447 is->read_pause_return= av_read_pause(ic);
2451 #if CONFIG_RTSP_DEMUXER
2452 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2453 /* wait 10 ms to avoid trying to get another packet */
2460 int64_t seek_target= is->seek_pos;
2461 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2462 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2463 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2464 // of the seek_pos/seek_rel variables
2466 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2468 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2470 if (is->audio_stream >= 0) {
2471 packet_queue_flush(&is->audioq);
2472 packet_queue_put(&is->audioq, &flush_pkt);
2474 if (is->subtitle_stream >= 0) {
2475 packet_queue_flush(&is->subtitleq);
2476 packet_queue_put(&is->subtitleq, &flush_pkt);
2478 if (is->video_stream >= 0) {
2479 packet_queue_flush(&is->videoq);
2480 packet_queue_put(&is->videoq, &flush_pkt);
2487 /* if the queue are full, no need to read more */
2488 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2489 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2490 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2491 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2497 if(is->video_stream >= 0){
2498 av_init_packet(pkt);
2501 pkt->stream_index= is->video_stream;
2502 packet_queue_put(&is->videoq, pkt);
2505 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2506 if(loop!=1 && (!loop || --loop)){
2507 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2516 ret = av_read_frame(ic, pkt);
2518 if (ret == AVERROR_EOF || url_feof(ic->pb))
2520 if (ic->pb && ic->pb->error)
2522 SDL_Delay(100); /* wait for user event */
2525 /* check if packet is in play range specified by user, then queue, otherwise discard */
2526 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2527 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2528 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2529 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2530 <= ((double)duration/1000000);
2531 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2532 packet_queue_put(&is->audioq, pkt);
2533 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2534 packet_queue_put(&is->videoq, pkt);
2535 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2536 packet_queue_put(&is->subtitleq, pkt);
2538 av_free_packet(pkt);
2541 /* wait until the end */
2542 while (!is->abort_request) {
2548 /* disable interrupting */
2549 global_video_state = NULL;
2551 /* close each stream */
2552 if (is->audio_stream >= 0)
2553 stream_component_close(is, is->audio_stream);
2554 if (is->video_stream >= 0)
2555 stream_component_close(is, is->video_stream);
2556 if (is->subtitle_stream >= 0)
2557 stream_component_close(is, is->subtitle_stream);
2559 av_close_input_file(is->ic);
2560 is->ic = NULL; /* safety */
2562 avio_set_interrupt_cb(NULL);
2567 event.type = FF_QUIT_EVENT;
2568 event.user.data1 = is;
2569 SDL_PushEvent(&event);
2574 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2578 is = av_mallocz(sizeof(VideoState));
2581 av_strlcpy(is->filename, filename, sizeof(is->filename));
2582 is->iformat = iformat;
2586 /* start video display */
2587 is->pictq_mutex = SDL_CreateMutex();
2588 is->pictq_cond = SDL_CreateCond();
2590 is->subpq_mutex = SDL_CreateMutex();
2591 is->subpq_cond = SDL_CreateCond();
2593 is->av_sync_type = av_sync_type;
2594 is->read_tid = SDL_CreateThread(read_thread, is);
2595 if (!is->read_tid) {
2602 static void stream_cycle_channel(VideoState *is, int codec_type)
2604 AVFormatContext *ic = is->ic;
2605 int start_index, stream_index;
2608 if (codec_type == AVMEDIA_TYPE_VIDEO)
2609 start_index = is->video_stream;
2610 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2611 start_index = is->audio_stream;
2613 start_index = is->subtitle_stream;
2614 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2616 stream_index = start_index;
2618 if (++stream_index >= is->ic->nb_streams)
2620 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2627 if (stream_index == start_index)
2629 st = ic->streams[stream_index];
2630 if (st->codec->codec_type == codec_type) {
2631 /* check that parameters are OK */
2632 switch(codec_type) {
2633 case AVMEDIA_TYPE_AUDIO:
2634 if (st->codec->sample_rate != 0 &&
2635 st->codec->channels != 0)
2638 case AVMEDIA_TYPE_VIDEO:
2639 case AVMEDIA_TYPE_SUBTITLE:
2647 stream_component_close(is, start_index);
2648 stream_component_open(is, stream_index);
2652 static void toggle_full_screen(VideoState *is)
2654 is_full_screen = !is_full_screen;
2658 static void toggle_pause(VideoState *is)
2660 stream_toggle_pause(is);
2664 static void step_to_next_frame(VideoState *is)
2666 /* if the stream is paused unpause it, then step */
2668 stream_toggle_pause(is);
2672 static void toggle_audio_display(VideoState *is)
2674 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2675 is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
2676 fill_rectangle(screen,
2677 is->xleft, is->ytop, is->width, is->height,
2679 SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
2682 /* handle an event sent by the GUI */
2683 static void event_loop(VideoState *cur_stream)
2686 double incr, pos, frac;
2690 SDL_WaitEvent(&event);
2691 switch(event.type) {
2693 if (exit_on_keydown) {
2694 do_exit(cur_stream);
2697 switch(event.key.keysym.sym) {
2700 do_exit(cur_stream);
2703 toggle_full_screen(cur_stream);
2707 toggle_pause(cur_stream);
2709 case SDLK_s: //S: Step to next frame
2710 step_to_next_frame(cur_stream);
2713 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2716 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2719 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2722 toggle_audio_display(cur_stream);
2736 if (seek_by_bytes) {
2737 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2738 pos= cur_stream->video_current_pos;
2739 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2740 pos= cur_stream->audio_pkt.pos;
2742 pos = avio_tell(cur_stream->ic->pb);
2743 if (cur_stream->ic->bit_rate)
2744 incr *= cur_stream->ic->bit_rate / 8.0;
2748 stream_seek(cur_stream, pos, incr, 1);
2750 pos = get_master_clock(cur_stream);
2752 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2759 case SDL_MOUSEBUTTONDOWN:
2760 if (exit_on_mousedown) {
2761 do_exit(cur_stream);
2764 case SDL_MOUSEMOTION:
2765 if(event.type ==SDL_MOUSEBUTTONDOWN){
2768 if(event.motion.state != SDL_PRESSED)
2772 if(seek_by_bytes || cur_stream->ic->duration<=0){
2773 uint64_t size= avio_size(cur_stream->ic->pb);
2774 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2778 int tns, thh, tmm, tss;
2779 tns = cur_stream->ic->duration/1000000LL;
2781 tmm = (tns%3600)/60;
2783 frac = x/cur_stream->width;
2788 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2789 hh, mm, ss, thh, tmm, tss);
2790 ts = frac*cur_stream->ic->duration;
2791 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2792 ts += cur_stream->ic->start_time;
2793 stream_seek(cur_stream, ts, 0, 0);
2796 case SDL_VIDEORESIZE:
2797 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2798 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2799 screen_width = cur_stream->width = event.resize.w;
2800 screen_height= cur_stream->height= event.resize.h;
2804 do_exit(cur_stream);
2806 case FF_ALLOC_EVENT:
2807 video_open(event.user.data1);
2808 alloc_picture(event.user.data1);
2810 case FF_REFRESH_EVENT:
2811 video_refresh(event.user.data1);
2812 cur_stream->refresh=0;
2820 static int opt_frame_size(const char *opt, const char *arg)
2822 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
2823 return opt_default("video_size", arg);
2826 static int opt_width(const char *opt, const char *arg)
2828 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2832 static int opt_height(const char *opt, const char *arg)
2834 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2838 static int opt_format(const char *opt, const char *arg)
2840 file_iformat = av_find_input_format(arg);
2841 if (!file_iformat) {
2842 fprintf(stderr, "Unknown input format: %s\n", arg);
2843 return AVERROR(EINVAL);
2848 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2850 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
2851 return opt_default("pixel_format", arg);
2854 static int opt_sync(const char *opt, const char *arg)
2856 if (!strcmp(arg, "audio"))
2857 av_sync_type = AV_SYNC_AUDIO_MASTER;
2858 else if (!strcmp(arg, "video"))
2859 av_sync_type = AV_SYNC_VIDEO_MASTER;
2860 else if (!strcmp(arg, "ext"))
2861 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2863 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2869 static int opt_seek(const char *opt, const char *arg)
2871 start_time = parse_time_or_die(opt, arg, 1);
2875 static int opt_duration(const char *opt, const char *arg)
2877 duration = parse_time_or_die(opt, arg, 1);
2881 static int opt_thread_count(const char *opt, const char *arg)
2883 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2885 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2890 static int opt_show_mode(const char *opt, const char *arg)
2892 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
2893 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
2894 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
2895 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
2899 static void opt_input_file(void *optctx, const char *filename)
2901 if (input_filename) {
2902 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
2903 filename, input_filename);
2906 if (!strcmp(filename, "-"))
2908 input_filename = filename;
2913 static const OptionDef options[] = {
2914 #include "cmdutils_common_opts.h"
2915 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2916 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2917 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2918 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2919 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2920 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2921 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2922 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2923 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2924 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2925 { "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
2926 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2927 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2928 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2929 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2930 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2931 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2932 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2933 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2934 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2935 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2936 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2937 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2938 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2939 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2940 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2941 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2942 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2943 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2944 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
2945 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
2946 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
2947 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
2948 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
2949 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
2951 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
2953 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
2954 { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
2955 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2956 { "i", OPT_BOOL, {(void *)&dummy}, "read specified file", "input_file"},
2960 static void show_usage(void)
2962 printf("Simple media player\n");
2963 printf("usage: %s [options] input_file\n", program_name);
2967 static int opt_help(const char *opt, const char *arg)
2969 const AVClass *class;
2970 av_log_set_callback(log_callback_help);
2972 show_help_options(options, "Main options:\n",
2974 show_help_options(options, "\nAdvanced options:\n",
2975 OPT_EXPERT, OPT_EXPERT);
2977 class = avcodec_get_class();
2978 av_opt_show2(&class, NULL,
2979 AV_OPT_FLAG_DECODING_PARAM, 0);
2981 class = avformat_get_class();
2982 av_opt_show2(&class, NULL,
2983 AV_OPT_FLAG_DECODING_PARAM, 0);
2984 #if !CONFIG_AVFILTER
2986 class = sws_get_class();
2987 av_opt_show2(&class, NULL,
2988 AV_OPT_FLAG_ENCODING_PARAM, 0);
2990 printf("\nWhile playing:\n"
2992 "f toggle full screen\n"
2994 "a cycle audio channel\n"
2995 "v cycle video channel\n"
2996 "t cycle subtitle channel\n"
2997 "w show audio waves\n"
2998 "s activate frame-step mode\n"
2999 "left/right seek backward/forward 10 seconds\n"
3000 "down/up seek backward/forward 1 minute\n"
3001 "mouse click seek to percentage in file corresponding to fraction of width\n"
3006 static int lockmgr(void **mtx, enum AVLockOp op)
3009 case AV_LOCK_CREATE:
3010 *mtx = SDL_CreateMutex();
3014 case AV_LOCK_OBTAIN:
3015 return !!SDL_LockMutex(*mtx);
3016 case AV_LOCK_RELEASE:
3017 return !!SDL_UnlockMutex(*mtx);
3018 case AV_LOCK_DESTROY:
3019 SDL_DestroyMutex(*mtx);
3025 /* Called from the main */
3026 int main(int argc, char **argv)
3031 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3033 /* register all codecs, demux and protocols */
3034 avcodec_register_all();
3036 avdevice_register_all();
3039 avfilter_register_all();
3047 parse_options(NULL, argc, argv, options, opt_input_file);
3049 if (!input_filename) {
3051 fprintf(stderr, "An input file must be specified\n");
3052 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3056 if (display_disable) {
3059 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3061 flags &= ~SDL_INIT_AUDIO;
3062 #if !defined(__MINGW32__) && !defined(__APPLE__)
3063 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3065 if (SDL_Init (flags)) {
3066 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3067 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3071 if (!display_disable) {
3072 #if HAVE_SDL_VIDEO_SIZE
3073 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3074 fs_screen_width = vi->current_w;
3075 fs_screen_height = vi->current_h;
3079 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3080 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3081 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3083 if (av_lockmgr_register(lockmgr)) {
3084 fprintf(stderr, "Could not initialize lock manager!\n");
3088 av_init_packet(&flush_pkt);
3089 flush_pkt.data= "FLUSH";
3091 is = stream_open(input_filename, file_iformat);
3093 fprintf(stderr, "Failed to initialize VideoState!\n");