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 AVPacket audio_pkt_temp;
163 enum AVSampleFormat audio_src_fmt;
164 AVAudioConvert *reformat_ctx;
167 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
169 int16_t sample_array[SAMPLE_ARRAY_SIZE];
170 int sample_array_index;
174 FFTSample *rdft_data;
177 SDL_Thread *subtitle_tid;
179 int subtitle_stream_changed;
180 AVStream *subtitle_st;
181 PacketQueue subtitleq;
182 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
183 int subpq_size, subpq_rindex, subpq_windex;
184 SDL_mutex *subpq_mutex;
185 SDL_cond *subpq_cond;
188 double frame_last_pts;
189 double frame_last_delay;
190 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
194 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
195 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
196 int64_t video_current_pos; ///<current displayed file pos
197 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
198 int pictq_size, pictq_rindex, pictq_windex;
199 SDL_mutex *pictq_mutex;
200 SDL_cond *pictq_cond;
202 struct SwsContext *img_convert_ctx;
206 int width, height, xleft, ytop;
209 AVFilterContext *out_video_filter; ///<the last filter in the video chain
213 float skip_frames_index;
217 static int opt_help(const char *opt, const char *arg);
219 /* options specified by the user */
220 static AVInputFormat *file_iformat;
221 static const char *input_filename;
222 static const char *window_title;
223 static int fs_screen_width;
224 static int fs_screen_height;
225 static int screen_width = 0;
226 static int screen_height = 0;
227 static int audio_disable;
228 static int video_disable;
229 static int wanted_stream[AVMEDIA_TYPE_NB]={
230 [AVMEDIA_TYPE_AUDIO]=-1,
231 [AVMEDIA_TYPE_VIDEO]=-1,
232 [AVMEDIA_TYPE_SUBTITLE]=-1,
234 static int seek_by_bytes=-1;
235 static int display_disable;
236 static int show_status = 1;
237 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
238 static int64_t start_time = AV_NOPTS_VALUE;
239 static int64_t duration = AV_NOPTS_VALUE;
241 static int thread_count = 1;
242 static int workaround_bugs = 1;
244 static int genpts = 0;
245 static int lowres = 0;
246 static int idct = FF_IDCT_AUTO;
247 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
248 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
249 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
250 static int error_recognition = FF_ER_CAREFUL;
251 static int error_concealment = 3;
252 static int decoder_reorder_pts= -1;
254 static int exit_on_keydown;
255 static int exit_on_mousedown;
257 static int framedrop=-1;
258 static enum ShowMode show_mode = SHOW_MODE_NONE;
260 static int rdftspeed=20;
262 static char *vfilters = NULL;
265 /* current context */
266 static int is_full_screen;
267 static VideoState *cur_stream;
268 static int64_t audio_callback_time;
270 static AVPacket flush_pkt;
272 #define FF_ALLOC_EVENT (SDL_USEREVENT)
273 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
274 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
276 static SDL_Surface *screen;
278 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
282 /* duplicate the packet */
283 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
286 pkt1 = av_malloc(sizeof(AVPacketList));
293 SDL_LockMutex(q->mutex);
299 q->last_pkt->next = pkt1;
302 q->size += pkt1->pkt.size + sizeof(*pkt1);
303 /* XXX: should duplicate packet data in DV case */
304 SDL_CondSignal(q->cond);
306 SDL_UnlockMutex(q->mutex);
310 /* packet queue handling */
311 static void packet_queue_init(PacketQueue *q)
313 memset(q, 0, sizeof(PacketQueue));
314 q->mutex = SDL_CreateMutex();
315 q->cond = SDL_CreateCond();
316 packet_queue_put(q, &flush_pkt);
319 static void packet_queue_flush(PacketQueue *q)
321 AVPacketList *pkt, *pkt1;
323 SDL_LockMutex(q->mutex);
324 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
326 av_free_packet(&pkt->pkt);
333 SDL_UnlockMutex(q->mutex);
336 static void packet_queue_end(PacketQueue *q)
338 packet_queue_flush(q);
339 SDL_DestroyMutex(q->mutex);
340 SDL_DestroyCond(q->cond);
343 static void packet_queue_abort(PacketQueue *q)
345 SDL_LockMutex(q->mutex);
347 q->abort_request = 1;
349 SDL_CondSignal(q->cond);
351 SDL_UnlockMutex(q->mutex);
354 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
355 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
360 SDL_LockMutex(q->mutex);
363 if (q->abort_request) {
370 q->first_pkt = pkt1->next;
374 q->size -= pkt1->pkt.size + sizeof(*pkt1);
383 SDL_CondWait(q->cond, q->mutex);
386 SDL_UnlockMutex(q->mutex);
390 static inline void fill_rectangle(SDL_Surface *screen,
391 int x, int y, int w, int h, int color)
398 SDL_FillRect(screen, &rect, color);
401 #define ALPHA_BLEND(a, oldp, newp, s)\
402 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
404 #define RGBA_IN(r, g, b, a, s)\
406 unsigned int v = ((const uint32_t *)(s))[0];\
407 a = (v >> 24) & 0xff;\
408 r = (v >> 16) & 0xff;\
409 g = (v >> 8) & 0xff;\
413 #define YUVA_IN(y, u, v, a, s, pal)\
415 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
416 a = (val >> 24) & 0xff;\
417 y = (val >> 16) & 0xff;\
418 u = (val >> 8) & 0xff;\
422 #define YUVA_OUT(d, y, u, v, a)\
424 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
430 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
432 int wrap, wrap3, width2, skip2;
433 int y, u, v, a, u1, v1, a1, w, h;
434 uint8_t *lum, *cb, *cr;
437 int dstx, dsty, dstw, dsth;
439 dstw = av_clip(rect->w, 0, imgw);
440 dsth = av_clip(rect->h, 0, imgh);
441 dstx = av_clip(rect->x, 0, imgw - dstw);
442 dsty = av_clip(rect->y, 0, imgh - dsth);
443 lum = dst->data[0] + dsty * dst->linesize[0];
444 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
445 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
447 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
449 wrap = dst->linesize[0];
450 wrap3 = rect->pict.linesize[0];
451 p = rect->pict.data[0];
452 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
460 YUVA_IN(y, u, v, a, p, pal);
461 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
462 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
463 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
469 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
470 YUVA_IN(y, u, v, a, p, pal);
474 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
476 YUVA_IN(y, u, v, a, p + BPP, pal);
480 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
481 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
482 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
489 YUVA_IN(y, u, v, a, p, pal);
490 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
491 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
492 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
496 p += wrap3 - dstw * BPP;
497 lum += wrap - dstw - dstx;
498 cb += dst->linesize[1] - width2 - skip2;
499 cr += dst->linesize[2] - width2 - skip2;
501 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
507 YUVA_IN(y, u, v, a, p, pal);
511 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
514 YUVA_IN(y, u, v, a, p, pal);
518 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
519 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
520 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
526 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
527 YUVA_IN(y, u, v, a, p, pal);
531 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
533 YUVA_IN(y, u, v, a, p + BPP, pal);
537 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
541 YUVA_IN(y, u, v, a, p, pal);
545 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
547 YUVA_IN(y, u, v, a, p + BPP, pal);
551 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
553 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
554 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
558 p += -wrap3 + 2 * BPP;
562 YUVA_IN(y, u, v, a, p, pal);
566 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
569 YUVA_IN(y, u, v, a, p, pal);
573 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
574 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
575 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
581 p += wrap3 + (wrap3 - dstw * BPP);
582 lum += wrap + (wrap - dstw - dstx);
583 cb += dst->linesize[1] - width2 - skip2;
584 cr += dst->linesize[2] - width2 - skip2;
586 /* handle odd height */
593 YUVA_IN(y, u, v, a, p, pal);
594 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
595 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
596 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
602 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
603 YUVA_IN(y, u, v, a, p, pal);
607 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
609 YUVA_IN(y, u, v, a, p + BPP, pal);
613 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
614 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
615 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
622 YUVA_IN(y, u, v, a, p, pal);
623 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
624 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
625 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
630 static void free_subpicture(SubPicture *sp)
632 avsubtitle_free(&sp->sub);
635 static void video_image_display(VideoState *is)
641 int width, height, x, y;
645 vp = &is->pictq[is->pictq_rindex];
648 if (vp->picref->video->sample_aspect_ratio.num == 0)
651 aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio);
654 /* XXX: use variable in the frame */
655 if (is->video_st->sample_aspect_ratio.num)
656 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
657 else if (is->video_st->codec->sample_aspect_ratio.num)
658 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
662 if (aspect_ratio <= 0.0)
664 aspect_ratio *= (float)vp->width / (float)vp->height;
666 if (is->subtitle_st) {
667 if (is->subpq_size > 0) {
668 sp = &is->subpq[is->subpq_rindex];
670 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
671 SDL_LockYUVOverlay (vp->bmp);
673 pict.data[0] = vp->bmp->pixels[0];
674 pict.data[1] = vp->bmp->pixels[2];
675 pict.data[2] = vp->bmp->pixels[1];
677 pict.linesize[0] = vp->bmp->pitches[0];
678 pict.linesize[1] = vp->bmp->pitches[2];
679 pict.linesize[2] = vp->bmp->pitches[1];
681 for (i = 0; i < sp->sub.num_rects; i++)
682 blend_subrect(&pict, sp->sub.rects[i],
683 vp->bmp->w, vp->bmp->h);
685 SDL_UnlockYUVOverlay (vp->bmp);
691 /* XXX: we suppose the screen has a 1.0 pixel ratio */
693 width = ((int)rint(height * aspect_ratio)) & ~1;
694 if (width > is->width) {
696 height = ((int)rint(width / aspect_ratio)) & ~1;
698 x = (is->width - width) / 2;
699 y = (is->height - height) / 2;
700 is->no_background = 0;
701 rect.x = is->xleft + x;
702 rect.y = is->ytop + y;
703 rect.w = FFMAX(width, 1);
704 rect.h = FFMAX(height, 1);
705 SDL_DisplayYUVOverlay(vp->bmp, &rect);
709 /* get the current audio output buffer size, in samples. With SDL, we
710 cannot have a precise information */
711 static int audio_write_get_buf_size(VideoState *is)
713 return is->audio_buf_size - is->audio_buf_index;
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 = audio_write_get_buf_size(s);
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(void)
897 stream_close(cur_stream);
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)
965 video_open(cur_stream);
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 int hw_buf_size, bytes_per_sec;
994 pts = is->audio_clock;
995 hw_buf_size = audio_write_get_buf_size(is);
998 bytes_per_sec = is->audio_st->codec->sample_rate *
999 2 * is->audio_st->codec->channels;
1002 pts -= (double)hw_buf_size / bytes_per_sec;
1006 /* get the current video clock value */
1007 static double get_video_clock(VideoState *is)
1010 return is->video_current_pts;
1012 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1016 /* get the current external clock value */
1017 static double get_external_clock(VideoState *is)
1021 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1024 /* get the current master clock value */
1025 static double get_master_clock(VideoState *is)
1029 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1031 val = get_video_clock(is);
1033 val = get_audio_clock(is);
1034 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1036 val = get_audio_clock(is);
1038 val = get_video_clock(is);
1040 val = get_external_clock(is);
1045 /* seek in the stream */
1046 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1048 if (!is->seek_req) {
1051 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1053 is->seek_flags |= AVSEEK_FLAG_BYTE;
1058 /* pause or resume the video */
1059 static void stream_toggle_pause(VideoState *is)
1062 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1063 if(is->read_pause_return != AVERROR(ENOSYS)){
1064 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1066 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1068 is->paused = !is->paused;
1071 static double compute_target_time(double frame_current_pts, VideoState *is)
1073 double delay, sync_threshold, diff;
1075 /* compute nominal delay */
1076 delay = frame_current_pts - is->frame_last_pts;
1077 if (delay <= 0 || delay >= 10.0) {
1078 /* if incorrect delay, use previous one */
1079 delay = is->frame_last_delay;
1081 is->frame_last_delay = delay;
1083 is->frame_last_pts = frame_current_pts;
1085 /* update delay to follow master synchronisation source */
1086 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1087 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1088 /* if video is slave, we try to correct big delays by
1089 duplicating or deleting a frame */
1090 diff = get_video_clock(is) - get_master_clock(is);
1092 /* skip or repeat frame. We take into account the
1093 delay to compute the threshold. I still don't know
1094 if it is the best guess */
1095 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1096 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1097 if (diff <= -sync_threshold)
1099 else if (diff >= sync_threshold)
1103 is->frame_timer += delay;
1105 av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1106 delay, frame_current_pts, -diff);
1108 return is->frame_timer;
1111 /* called to display each frame */
1112 static void video_refresh(void *opaque)
1114 VideoState *is = opaque;
1117 SubPicture *sp, *sp2;
1121 if (is->pictq_size == 0) {
1122 //nothing to do, no picture to display in the que
1124 double time= av_gettime()/1000000.0;
1126 /* dequeue the picture */
1127 vp = &is->pictq[is->pictq_rindex];
1129 if(time < vp->target_clock)
1131 /* update current video pts */
1132 is->video_current_pts = vp->pts;
1133 is->video_current_pts_drift = is->video_current_pts - time;
1134 is->video_current_pos = vp->pos;
1135 if(is->pictq_size > 1){
1136 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1137 assert(nextvp->target_clock >= vp->target_clock);
1138 next_target= nextvp->target_clock;
1140 next_target= vp->target_clock + vp->duration;
1142 if((framedrop>0 || (framedrop && is->audio_st)) && time > next_target){
1143 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1144 if(is->pictq_size > 1 || time > next_target + 0.5){
1145 /* update queue size and signal for next picture */
1146 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1147 is->pictq_rindex = 0;
1149 SDL_LockMutex(is->pictq_mutex);
1151 SDL_CondSignal(is->pictq_cond);
1152 SDL_UnlockMutex(is->pictq_mutex);
1157 if(is->subtitle_st) {
1158 if (is->subtitle_stream_changed) {
1159 SDL_LockMutex(is->subpq_mutex);
1161 while (is->subpq_size) {
1162 free_subpicture(&is->subpq[is->subpq_rindex]);
1164 /* update queue size and signal for next picture */
1165 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1166 is->subpq_rindex = 0;
1170 is->subtitle_stream_changed = 0;
1172 SDL_CondSignal(is->subpq_cond);
1173 SDL_UnlockMutex(is->subpq_mutex);
1175 if (is->subpq_size > 0) {
1176 sp = &is->subpq[is->subpq_rindex];
1178 if (is->subpq_size > 1)
1179 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1183 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1184 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1186 free_subpicture(sp);
1188 /* update queue size and signal for next picture */
1189 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1190 is->subpq_rindex = 0;
1192 SDL_LockMutex(is->subpq_mutex);
1194 SDL_CondSignal(is->subpq_cond);
1195 SDL_UnlockMutex(is->subpq_mutex);
1201 /* display picture */
1202 if (!display_disable)
1205 /* update queue size and signal for next picture */
1206 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1207 is->pictq_rindex = 0;
1209 SDL_LockMutex(is->pictq_mutex);
1211 SDL_CondSignal(is->pictq_cond);
1212 SDL_UnlockMutex(is->pictq_mutex);
1214 } else if (is->audio_st) {
1215 /* draw the next audio frame */
1217 /* if only audio stream, then display the audio bars (better
1218 than nothing, just to test the implementation */
1220 /* display picture */
1221 if (!display_disable)
1225 static int64_t last_time;
1227 int aqsize, vqsize, sqsize;
1230 cur_time = av_gettime();
1231 if (!last_time || (cur_time - last_time) >= 30000) {
1236 aqsize = is->audioq.size;
1238 vqsize = is->videoq.size;
1239 if (is->subtitle_st)
1240 sqsize = is->subtitleq.size;
1242 if (is->audio_st && is->video_st)
1243 av_diff = get_audio_clock(is) - get_video_clock(is);
1244 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1245 get_master_clock(is),
1247 FFMAX(is->skip_frames-1, 0),
1251 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1252 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1254 last_time = cur_time;
1259 /* allocate a picture (needs to do that in main thread to avoid
1260 potential locking problems */
1261 static void alloc_picture(void *opaque)
1263 VideoState *is = opaque;
1266 vp = &is->pictq[is->pictq_windex];
1269 SDL_FreeYUVOverlay(vp->bmp);
1273 avfilter_unref_buffer(vp->picref);
1276 vp->width = is->out_video_filter->inputs[0]->w;
1277 vp->height = is->out_video_filter->inputs[0]->h;
1278 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1280 vp->width = is->video_st->codec->width;
1281 vp->height = is->video_st->codec->height;
1282 vp->pix_fmt = is->video_st->codec->pix_fmt;
1285 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1288 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1289 /* SDL allocates a buffer smaller than requested if the video
1290 * overlay hardware is unable to support the requested size. */
1291 fprintf(stderr, "Error: the video system does not support an image\n"
1292 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1293 "to reduce the image size.\n", vp->width, vp->height );
1297 SDL_LockMutex(is->pictq_mutex);
1299 SDL_CondSignal(is->pictq_cond);
1300 SDL_UnlockMutex(is->pictq_mutex);
1303 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1306 double frame_delay, pts = pts1;
1308 /* compute the exact PTS for the picture if it is omitted in the stream
1309 * pts1 is the dts of the pkt / pts of the frame */
1311 /* update video clock with pts, if present */
1312 is->video_clock = pts;
1314 pts = is->video_clock;
1316 /* update video clock for next frame */
1317 frame_delay = av_q2d(is->video_st->codec->time_base);
1318 /* for MPEG2, the frame can be repeated, so we update the
1319 clock accordingly */
1320 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1321 is->video_clock += frame_delay;
1323 #if defined(DEBUG_SYNC) && 0
1324 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1325 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1328 /* wait until we have space to put a new picture */
1329 SDL_LockMutex(is->pictq_mutex);
1331 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1332 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1334 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1335 !is->videoq.abort_request) {
1336 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1338 SDL_UnlockMutex(is->pictq_mutex);
1340 if (is->videoq.abort_request)
1343 vp = &is->pictq[is->pictq_windex];
1345 vp->duration = frame_delay;
1347 /* alloc or resize hardware picture buffer */
1350 vp->width != is->out_video_filter->inputs[0]->w ||
1351 vp->height != is->out_video_filter->inputs[0]->h) {
1353 vp->width != is->video_st->codec->width ||
1354 vp->height != is->video_st->codec->height) {
1360 /* the allocation must be done in the main thread to avoid
1362 event.type = FF_ALLOC_EVENT;
1363 event.user.data1 = is;
1364 SDL_PushEvent(&event);
1366 /* wait until the picture is allocated */
1367 SDL_LockMutex(is->pictq_mutex);
1368 while (!vp->allocated && !is->videoq.abort_request) {
1369 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1371 SDL_UnlockMutex(is->pictq_mutex);
1373 if (is->videoq.abort_request)
1377 /* if the frame is not skipped, then display it */
1382 avfilter_unref_buffer(vp->picref);
1383 vp->picref = src_frame->opaque;
1386 /* get a pointer on the bitmap */
1387 SDL_LockYUVOverlay (vp->bmp);
1389 memset(&pict,0,sizeof(AVPicture));
1390 pict.data[0] = vp->bmp->pixels[0];
1391 pict.data[1] = vp->bmp->pixels[2];
1392 pict.data[2] = vp->bmp->pixels[1];
1394 pict.linesize[0] = vp->bmp->pitches[0];
1395 pict.linesize[1] = vp->bmp->pitches[2];
1396 pict.linesize[2] = vp->bmp->pitches[1];
1399 //FIXME use direct rendering
1400 av_picture_copy(&pict, (AVPicture *)src_frame,
1401 vp->pix_fmt, vp->width, vp->height);
1403 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1404 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1405 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1406 PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1407 if (is->img_convert_ctx == NULL) {
1408 fprintf(stderr, "Cannot initialize the conversion context\n");
1411 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1412 0, vp->height, pict.data, pict.linesize);
1414 /* update the bitmap content */
1415 SDL_UnlockYUVOverlay(vp->bmp);
1420 /* now we can update the picture count */
1421 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1422 is->pictq_windex = 0;
1423 SDL_LockMutex(is->pictq_mutex);
1424 vp->target_clock= compute_target_time(vp->pts, is);
1427 SDL_UnlockMutex(is->pictq_mutex);
1432 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1436 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1439 if (pkt->data == flush_pkt.data) {
1440 avcodec_flush_buffers(is->video_st->codec);
1442 SDL_LockMutex(is->pictq_mutex);
1443 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1444 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1445 is->pictq[i].target_clock= 0;
1447 while (is->pictq_size && !is->videoq.abort_request) {
1448 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1450 is->video_current_pos = -1;
1451 SDL_UnlockMutex(is->pictq_mutex);
1453 is->frame_last_pts = AV_NOPTS_VALUE;
1454 is->frame_last_delay = 0;
1455 is->frame_timer = (double)av_gettime() / 1000000.0;
1456 is->skip_frames = 1;
1457 is->skip_frames_index = 0;
1461 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1464 if (decoder_reorder_pts == -1) {
1465 *pts = frame->best_effort_timestamp;
1466 } else if (decoder_reorder_pts) {
1467 *pts = frame->pkt_pts;
1469 *pts = frame->pkt_dts;
1472 if (*pts == AV_NOPTS_VALUE) {
1476 is->skip_frames_index += 1;
1477 if(is->skip_frames_index >= is->skip_frames){
1478 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1493 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1495 AVFilterContext *ctx = codec->opaque;
1496 AVFilterBufferRef *ref;
1497 int perms = AV_PERM_WRITE;
1498 int i, w, h, stride[4];
1502 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1504 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1505 perms |= AV_PERM_NEG_LINESIZES;
1507 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1508 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1509 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1510 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1512 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1517 if(av_image_check_size(w, h, 0, codec))
1520 avcodec_align_dimensions2(codec, &w, &h, stride);
1521 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1525 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1528 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
1529 ref->video->w = codec->width;
1530 ref->video->h = codec->height;
1531 for(i = 0; i < 4; i ++) {
1532 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1533 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1536 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1538 pic->data[i] = ref->data[i];
1539 pic->linesize[i] = ref->linesize[i];
1543 pic->type = FF_BUFFER_TYPE_USER;
1544 pic->reordered_opaque = codec->reordered_opaque;
1545 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1546 else pic->pkt_pts = AV_NOPTS_VALUE;
1550 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1552 memset(pic->data, 0, sizeof(pic->data));
1553 avfilter_unref_buffer(pic->opaque);
1556 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1558 AVFilterBufferRef *ref = pic->opaque;
1560 if (pic->data[0] == NULL) {
1561 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1562 return codec->get_buffer(codec, pic);
1565 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1566 (codec->pix_fmt != ref->format)) {
1567 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1571 pic->reordered_opaque = codec->reordered_opaque;
1572 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1573 else pic->pkt_pts = AV_NOPTS_VALUE;
1577 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1579 FilterPriv *priv = ctx->priv;
1580 AVCodecContext *codec;
1581 if(!opaque) return -1;
1584 codec = priv->is->video_st->codec;
1585 codec->opaque = ctx;
1586 if((codec->codec->capabilities & CODEC_CAP_DR1)
1588 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1590 codec->get_buffer = input_get_buffer;
1591 codec->release_buffer = input_release_buffer;
1592 codec->reget_buffer = input_reget_buffer;
1593 codec->thread_safe_callbacks = 1;
1596 priv->frame = avcodec_alloc_frame();
1601 static void input_uninit(AVFilterContext *ctx)
1603 FilterPriv *priv = ctx->priv;
1604 av_free(priv->frame);
1607 static int input_request_frame(AVFilterLink *link)
1609 FilterPriv *priv = link->src->priv;
1610 AVFilterBufferRef *picref;
1615 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1616 av_free_packet(&pkt);
1620 if(priv->use_dr1 && priv->frame->opaque) {
1621 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1623 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1624 av_image_copy(picref->data, picref->linesize,
1625 priv->frame->data, priv->frame->linesize,
1626 picref->format, link->w, link->h);
1628 av_free_packet(&pkt);
1630 avfilter_copy_frame_props(picref, priv->frame);
1633 avfilter_start_frame(link, picref);
1634 avfilter_draw_slice(link, 0, link->h, 1);
1635 avfilter_end_frame(link);
1640 static int input_query_formats(AVFilterContext *ctx)
1642 FilterPriv *priv = ctx->priv;
1643 enum PixelFormat pix_fmts[] = {
1644 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1647 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
1651 static int input_config_props(AVFilterLink *link)
1653 FilterPriv *priv = link->src->priv;
1654 AVCodecContext *c = priv->is->video_st->codec;
1657 link->h = c->height;
1658 link->sample_aspect_ratio = priv->is->video_st->sample_aspect_ratio;
1659 link->time_base = priv->is->video_st->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)
1715 av_freep(&vfilters);
1717 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1721 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1724 is->out_video_filter = filt_out;
1729 #endif /* CONFIG_AVFILTER */
1731 static int video_thread(void *arg)
1733 VideoState *is = arg;
1734 AVFrame *frame= avcodec_alloc_frame();
1735 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1740 AVFilterGraph *graph = avfilter_graph_alloc();
1741 AVFilterContext *filt_out = NULL;
1743 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1745 filt_out = is->out_video_filter;
1749 #if !CONFIG_AVFILTER
1752 AVFilterBufferRef *picref;
1753 AVRational tb = filt_out->inputs[0]->time_base;
1755 while (is->paused && !is->videoq.abort_request)
1758 ret = av_vsink_buffer_get_video_buffer_ref(filt_out, &picref, 0);
1760 avfilter_fill_frame_from_video_buffer_ref(frame, picref);
1761 pts_int = picref->pts;
1763 frame->opaque = picref;
1766 if (av_cmp_q(tb, is->video_st->time_base)) {
1767 av_unused int64_t pts1 = pts_int;
1768 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1769 av_dlog(NULL, "video_thread(): "
1770 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1771 tb.num, tb.den, pts1,
1772 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1775 ret = get_video_frame(is, frame, &pts_int, &pkt);
1777 av_free_packet(&pkt);
1780 if (ret < 0) goto the_end;
1785 pts = pts_int*av_q2d(is->video_st->time_base);
1787 ret = queue_picture(is, frame, pts, pos);
1794 stream_toggle_pause(cur_stream);
1798 avfilter_graph_free(&graph);
1804 static int subtitle_thread(void *arg)
1806 VideoState *is = arg;
1808 AVPacket pkt1, *pkt = &pkt1;
1812 int r, g, b, y, u, v, a;
1815 while (is->paused && !is->subtitleq.abort_request) {
1818 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1821 if(pkt->data == flush_pkt.data){
1822 avcodec_flush_buffers(is->subtitle_st->codec);
1825 SDL_LockMutex(is->subpq_mutex);
1826 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1827 !is->subtitleq.abort_request) {
1828 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1830 SDL_UnlockMutex(is->subpq_mutex);
1832 if (is->subtitleq.abort_request)
1835 sp = &is->subpq[is->subpq_windex];
1837 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1838 this packet, if any */
1840 if (pkt->pts != AV_NOPTS_VALUE)
1841 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1843 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1844 &got_subtitle, pkt);
1846 if (got_subtitle && sp->sub.format == 0) {
1849 for (i = 0; i < sp->sub.num_rects; i++)
1851 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1853 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1854 y = RGB_TO_Y_CCIR(r, g, b);
1855 u = RGB_TO_U_CCIR(r, g, b, 0);
1856 v = RGB_TO_V_CCIR(r, g, b, 0);
1857 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1861 /* now we can update the picture count */
1862 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1863 is->subpq_windex = 0;
1864 SDL_LockMutex(is->subpq_mutex);
1866 SDL_UnlockMutex(is->subpq_mutex);
1868 av_free_packet(pkt);
1873 /* copy samples for viewing in editor window */
1874 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1878 size = samples_size / sizeof(short);
1880 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1883 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1885 is->sample_array_index += len;
1886 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1887 is->sample_array_index = 0;
1892 /* return the new audio buffer size (samples can be added or deleted
1893 to get better sync if video or external master clock) */
1894 static int synchronize_audio(VideoState *is, short *samples,
1895 int samples_size1, double pts)
1897 int n, samples_size;
1900 n = 2 * is->audio_st->codec->channels;
1901 samples_size = samples_size1;
1903 /* if not master, then we try to remove or add samples to correct the clock */
1904 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1905 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1906 double diff, avg_diff;
1907 int wanted_size, min_size, max_size, nb_samples;
1909 ref_clock = get_master_clock(is);
1910 diff = get_audio_clock(is) - ref_clock;
1912 if (diff < AV_NOSYNC_THRESHOLD) {
1913 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1914 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1915 /* not enough measures to have a correct estimate */
1916 is->audio_diff_avg_count++;
1918 /* estimate the A-V difference */
1919 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1921 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1922 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1923 nb_samples = samples_size / n;
1925 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1926 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1927 if (wanted_size < min_size)
1928 wanted_size = min_size;
1929 else if (wanted_size > max_size)
1930 wanted_size = max_size;
1932 /* add or remove samples to correction the synchro */
1933 if (wanted_size < samples_size) {
1934 /* remove samples */
1935 samples_size = wanted_size;
1936 } else if (wanted_size > samples_size) {
1937 uint8_t *samples_end, *q;
1941 nb = (samples_size - wanted_size);
1942 samples_end = (uint8_t *)samples + samples_size - n;
1943 q = samples_end + n;
1945 memcpy(q, samples_end, n);
1949 samples_size = wanted_size;
1953 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1954 diff, avg_diff, samples_size - samples_size1,
1955 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1959 /* too big difference : may be initial PTS errors, so
1961 is->audio_diff_avg_count = 0;
1962 is->audio_diff_cum = 0;
1966 return samples_size;
1969 /* decode one audio frame and returns its uncompressed size */
1970 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1972 AVPacket *pkt_temp = &is->audio_pkt_temp;
1973 AVPacket *pkt = &is->audio_pkt;
1974 AVCodecContext *dec= is->audio_st->codec;
1975 int n, len1, data_size;
1979 /* NOTE: the audio packet can contain several frames */
1980 while (pkt_temp->size > 0) {
1981 data_size = sizeof(is->audio_buf1);
1982 len1 = avcodec_decode_audio3(dec,
1983 (int16_t *)is->audio_buf1, &data_size,
1986 /* if error, we skip the frame */
1991 pkt_temp->data += len1;
1992 pkt_temp->size -= len1;
1996 if (dec->sample_fmt != is->audio_src_fmt) {
1997 if (is->reformat_ctx)
1998 av_audio_convert_free(is->reformat_ctx);
1999 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2000 dec->sample_fmt, 1, NULL, 0);
2001 if (!is->reformat_ctx) {
2002 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2003 av_get_sample_fmt_name(dec->sample_fmt),
2004 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2007 is->audio_src_fmt= dec->sample_fmt;
2010 if (is->reformat_ctx) {
2011 const void *ibuf[6]= {is->audio_buf1};
2012 void *obuf[6]= {is->audio_buf2};
2013 int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)};
2014 int ostride[6]= {2};
2015 int len= data_size/istride[0];
2016 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2017 printf("av_audio_convert() failed\n");
2020 is->audio_buf= is->audio_buf2;
2021 /* FIXME: existing code assume that data_size equals framesize*channels*2
2022 remove this legacy cruft */
2025 is->audio_buf= is->audio_buf1;
2028 /* if no pts, then compute it */
2029 pts = is->audio_clock;
2031 n = 2 * dec->channels;
2032 is->audio_clock += (double)data_size /
2033 (double)(n * dec->sample_rate);
2036 static double last_clock;
2037 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2038 is->audio_clock - last_clock,
2039 is->audio_clock, pts);
2040 last_clock = is->audio_clock;
2046 /* free the current packet */
2048 av_free_packet(pkt);
2050 if (is->paused || is->audioq.abort_request) {
2054 /* read next packet */
2055 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2057 if(pkt->data == flush_pkt.data){
2058 avcodec_flush_buffers(dec);
2062 pkt_temp->data = pkt->data;
2063 pkt_temp->size = pkt->size;
2065 /* if update the audio clock with the pts */
2066 if (pkt->pts != AV_NOPTS_VALUE) {
2067 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2072 /* prepare a new audio buffer */
2073 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2075 VideoState *is = opaque;
2076 int audio_size, len1;
2079 audio_callback_time = av_gettime();
2082 if (is->audio_buf_index >= is->audio_buf_size) {
2083 audio_size = audio_decode_frame(is, &pts);
2084 if (audio_size < 0) {
2085 /* if error, just output silence */
2086 is->audio_buf = is->audio_buf1;
2087 is->audio_buf_size = 1024;
2088 memset(is->audio_buf, 0, is->audio_buf_size);
2090 if (is->show_mode != SHOW_MODE_VIDEO)
2091 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2092 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2094 is->audio_buf_size = audio_size;
2096 is->audio_buf_index = 0;
2098 len1 = is->audio_buf_size - is->audio_buf_index;
2101 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2104 is->audio_buf_index += len1;
2108 /* open a given stream. Return 0 if OK */
2109 static int stream_component_open(VideoState *is, int stream_index)
2111 AVFormatContext *ic = is->ic;
2112 AVCodecContext *avctx;
2114 SDL_AudioSpec wanted_spec, spec;
2116 AVDictionaryEntry *t = NULL;
2118 if (stream_index < 0 || stream_index >= ic->nb_streams)
2120 avctx = ic->streams[stream_index]->codec;
2122 opts = filter_codec_opts(codec_opts, avctx->codec_id, 0);
2124 /* prepare audio output */
2125 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2126 if (avctx->channels > 0) {
2127 avctx->request_channels = FFMIN(2, avctx->channels);
2129 avctx->request_channels = 2;
2133 codec = avcodec_find_decoder(avctx->codec_id);
2137 avctx->workaround_bugs = workaround_bugs;
2138 avctx->lowres = lowres;
2139 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2140 avctx->idct_algo= idct;
2141 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2142 avctx->skip_frame= skip_frame;
2143 avctx->skip_idct= skip_idct;
2144 avctx->skip_loop_filter= skip_loop_filter;
2145 avctx->error_recognition= error_recognition;
2146 avctx->error_concealment= error_concealment;
2147 avctx->thread_count= thread_count;
2149 if(codec->capabilities & CODEC_CAP_DR1)
2150 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2153 avcodec_open2(avctx, codec, &opts) < 0)
2155 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2156 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2157 return AVERROR_OPTION_NOT_FOUND;
2160 /* prepare audio output */
2161 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2162 if(avctx->sample_rate <= 0 || avctx->channels <= 0){
2163 fprintf(stderr, "Invalid sample rate or channel count\n");
2166 wanted_spec.freq = avctx->sample_rate;
2167 wanted_spec.format = AUDIO_S16SYS;
2168 wanted_spec.channels = avctx->channels;
2169 wanted_spec.silence = 0;
2170 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2171 wanted_spec.callback = sdl_audio_callback;
2172 wanted_spec.userdata = is;
2173 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2174 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2177 is->audio_hw_buf_size = spec.size;
2178 is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2181 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2182 switch(avctx->codec_type) {
2183 case AVMEDIA_TYPE_AUDIO:
2184 is->audio_stream = stream_index;
2185 is->audio_st = ic->streams[stream_index];
2186 is->audio_buf_size = 0;
2187 is->audio_buf_index = 0;
2189 /* init averaging filter */
2190 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2191 is->audio_diff_avg_count = 0;
2192 /* since we do not have a precise anough audio fifo fullness,
2193 we correct audio sync only if larger than this threshold */
2194 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2196 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2197 packet_queue_init(&is->audioq);
2200 case AVMEDIA_TYPE_VIDEO:
2201 is->video_stream = stream_index;
2202 is->video_st = ic->streams[stream_index];
2204 packet_queue_init(&is->videoq);
2205 is->video_tid = SDL_CreateThread(video_thread, is);
2207 case AVMEDIA_TYPE_SUBTITLE:
2208 is->subtitle_stream = stream_index;
2209 is->subtitle_st = ic->streams[stream_index];
2210 packet_queue_init(&is->subtitleq);
2212 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2220 static void stream_component_close(VideoState *is, int stream_index)
2222 AVFormatContext *ic = is->ic;
2223 AVCodecContext *avctx;
2225 if (stream_index < 0 || stream_index >= ic->nb_streams)
2227 avctx = ic->streams[stream_index]->codec;
2229 switch(avctx->codec_type) {
2230 case AVMEDIA_TYPE_AUDIO:
2231 packet_queue_abort(&is->audioq);
2235 packet_queue_end(&is->audioq);
2236 if (is->reformat_ctx)
2237 av_audio_convert_free(is->reformat_ctx);
2238 is->reformat_ctx = NULL;
2240 case AVMEDIA_TYPE_VIDEO:
2241 packet_queue_abort(&is->videoq);
2243 /* note: we also signal this mutex to make sure we deblock the
2244 video thread in all cases */
2245 SDL_LockMutex(is->pictq_mutex);
2246 SDL_CondSignal(is->pictq_cond);
2247 SDL_UnlockMutex(is->pictq_mutex);
2249 SDL_WaitThread(is->video_tid, NULL);
2251 packet_queue_end(&is->videoq);
2253 case AVMEDIA_TYPE_SUBTITLE:
2254 packet_queue_abort(&is->subtitleq);
2256 /* note: we also signal this mutex to make sure we deblock the
2257 video thread in all cases */
2258 SDL_LockMutex(is->subpq_mutex);
2259 is->subtitle_stream_changed = 1;
2261 SDL_CondSignal(is->subpq_cond);
2262 SDL_UnlockMutex(is->subpq_mutex);
2264 SDL_WaitThread(is->subtitle_tid, NULL);
2266 packet_queue_end(&is->subtitleq);
2272 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2273 avcodec_close(avctx);
2274 switch(avctx->codec_type) {
2275 case AVMEDIA_TYPE_AUDIO:
2276 is->audio_st = NULL;
2277 is->audio_stream = -1;
2279 case AVMEDIA_TYPE_VIDEO:
2280 is->video_st = NULL;
2281 is->video_stream = -1;
2283 case AVMEDIA_TYPE_SUBTITLE:
2284 is->subtitle_st = NULL;
2285 is->subtitle_stream = -1;
2292 /* since we have only one decoding thread, we can use a global
2293 variable instead of a thread local variable */
2294 static VideoState *global_video_state;
2296 static int decode_interrupt_cb(void)
2298 return (global_video_state && global_video_state->abort_request);
2301 /* this thread gets the stream from the disk or the network */
2302 static int read_thread(void *arg)
2304 VideoState *is = arg;
2305 AVFormatContext *ic = NULL;
2307 int st_index[AVMEDIA_TYPE_NB];
2308 AVPacket pkt1, *pkt = &pkt1;
2310 int pkt_in_play_range = 0;
2311 AVDictionaryEntry *t;
2312 AVDictionary **opts;
2313 int orig_nb_streams;
2315 memset(st_index, -1, sizeof(st_index));
2316 is->video_stream = -1;
2317 is->audio_stream = -1;
2318 is->subtitle_stream = -1;
2320 global_video_state = is;
2321 avio_set_interrupt_cb(decode_interrupt_cb);
2323 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2325 print_error(is->filename, err);
2329 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2330 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2331 ret = AVERROR_OPTION_NOT_FOUND;
2337 ic->flags |= AVFMT_FLAG_GENPTS;
2339 opts = setup_find_stream_info_opts(ic, codec_opts);
2340 orig_nb_streams = ic->nb_streams;
2342 err = avformat_find_stream_info(ic, opts);
2344 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2348 for (i = 0; i < orig_nb_streams; i++)
2349 av_dict_free(&opts[i]);
2353 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2356 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2358 /* if seeking requested, we execute it */
2359 if (start_time != AV_NOPTS_VALUE) {
2362 timestamp = start_time;
2363 /* add the stream start time */
2364 if (ic->start_time != AV_NOPTS_VALUE)
2365 timestamp += ic->start_time;
2366 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2368 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2369 is->filename, (double)timestamp / AV_TIME_BASE);
2373 for (i = 0; i < ic->nb_streams; i++)
2374 ic->streams[i]->discard = AVDISCARD_ALL;
2376 st_index[AVMEDIA_TYPE_VIDEO] =
2377 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2378 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2380 st_index[AVMEDIA_TYPE_AUDIO] =
2381 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2382 wanted_stream[AVMEDIA_TYPE_AUDIO],
2383 st_index[AVMEDIA_TYPE_VIDEO],
2386 st_index[AVMEDIA_TYPE_SUBTITLE] =
2387 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2388 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2389 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2390 st_index[AVMEDIA_TYPE_AUDIO] :
2391 st_index[AVMEDIA_TYPE_VIDEO]),
2394 av_dump_format(ic, 0, is->filename, 0);
2397 is->show_mode = show_mode;
2399 /* open the streams */
2400 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2401 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2405 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2406 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2408 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2409 if (is->show_mode == SHOW_MODE_NONE)
2410 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2412 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2413 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2416 if (is->video_stream < 0 && is->audio_stream < 0) {
2417 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2423 if (is->abort_request)
2425 if (is->paused != is->last_paused) {
2426 is->last_paused = is->paused;
2428 is->read_pause_return= av_read_pause(ic);
2432 #if CONFIG_RTSP_DEMUXER
2433 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2434 /* wait 10 ms to avoid trying to get another packet */
2441 int64_t seek_target= is->seek_pos;
2442 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2443 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2444 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2445 // of the seek_pos/seek_rel variables
2447 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2449 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2451 if (is->audio_stream >= 0) {
2452 packet_queue_flush(&is->audioq);
2453 packet_queue_put(&is->audioq, &flush_pkt);
2455 if (is->subtitle_stream >= 0) {
2456 packet_queue_flush(&is->subtitleq);
2457 packet_queue_put(&is->subtitleq, &flush_pkt);
2459 if (is->video_stream >= 0) {
2460 packet_queue_flush(&is->videoq);
2461 packet_queue_put(&is->videoq, &flush_pkt);
2468 /* if the queue are full, no need to read more */
2469 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2470 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2471 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2472 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2478 if(is->video_stream >= 0){
2479 av_init_packet(pkt);
2482 pkt->stream_index= is->video_stream;
2483 packet_queue_put(&is->videoq, pkt);
2486 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2487 if(loop!=1 && (!loop || --loop)){
2488 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2497 ret = av_read_frame(ic, pkt);
2499 if (ret == AVERROR_EOF || url_feof(ic->pb))
2501 if (ic->pb && ic->pb->error)
2503 SDL_Delay(100); /* wait for user event */
2506 /* check if packet is in play range specified by user, then queue, otherwise discard */
2507 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2508 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2509 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2510 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2511 <= ((double)duration/1000000);
2512 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2513 packet_queue_put(&is->audioq, pkt);
2514 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2515 packet_queue_put(&is->videoq, pkt);
2516 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2517 packet_queue_put(&is->subtitleq, pkt);
2519 av_free_packet(pkt);
2522 /* wait until the end */
2523 while (!is->abort_request) {
2529 /* disable interrupting */
2530 global_video_state = NULL;
2532 /* close each stream */
2533 if (is->audio_stream >= 0)
2534 stream_component_close(is, is->audio_stream);
2535 if (is->video_stream >= 0)
2536 stream_component_close(is, is->video_stream);
2537 if (is->subtitle_stream >= 0)
2538 stream_component_close(is, is->subtitle_stream);
2540 av_close_input_file(is->ic);
2541 is->ic = NULL; /* safety */
2543 avio_set_interrupt_cb(NULL);
2548 event.type = FF_QUIT_EVENT;
2549 event.user.data1 = is;
2550 SDL_PushEvent(&event);
2555 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2559 is = av_mallocz(sizeof(VideoState));
2562 av_strlcpy(is->filename, filename, sizeof(is->filename));
2563 is->iformat = iformat;
2567 /* start video display */
2568 is->pictq_mutex = SDL_CreateMutex();
2569 is->pictq_cond = SDL_CreateCond();
2571 is->subpq_mutex = SDL_CreateMutex();
2572 is->subpq_cond = SDL_CreateCond();
2574 is->av_sync_type = av_sync_type;
2575 is->read_tid = SDL_CreateThread(read_thread, is);
2576 if (!is->read_tid) {
2583 static void stream_cycle_channel(VideoState *is, int codec_type)
2585 AVFormatContext *ic = is->ic;
2586 int start_index, stream_index;
2589 if (codec_type == AVMEDIA_TYPE_VIDEO)
2590 start_index = is->video_stream;
2591 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2592 start_index = is->audio_stream;
2594 start_index = is->subtitle_stream;
2595 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2597 stream_index = start_index;
2599 if (++stream_index >= is->ic->nb_streams)
2601 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2608 if (stream_index == start_index)
2610 st = ic->streams[stream_index];
2611 if (st->codec->codec_type == codec_type) {
2612 /* check that parameters are OK */
2613 switch(codec_type) {
2614 case AVMEDIA_TYPE_AUDIO:
2615 if (st->codec->sample_rate != 0 &&
2616 st->codec->channels != 0)
2619 case AVMEDIA_TYPE_VIDEO:
2620 case AVMEDIA_TYPE_SUBTITLE:
2628 stream_component_close(is, start_index);
2629 stream_component_open(is, stream_index);
2633 static void toggle_full_screen(void)
2635 is_full_screen = !is_full_screen;
2636 video_open(cur_stream);
2639 static void toggle_pause(void)
2642 stream_toggle_pause(cur_stream);
2646 static void step_to_next_frame(void)
2649 /* if the stream is paused unpause it, then step */
2650 if (cur_stream->paused)
2651 stream_toggle_pause(cur_stream);
2656 static void toggle_audio_display(void)
2659 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2660 cur_stream->show_mode = (cur_stream->show_mode + 1) % SHOW_MODE_NB;
2661 fill_rectangle(screen,
2662 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2664 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2668 /* handle an event sent by the GUI */
2669 static void event_loop(void)
2672 double incr, pos, frac;
2676 SDL_WaitEvent(&event);
2677 switch(event.type) {
2679 if (exit_on_keydown) {
2683 switch(event.key.keysym.sym) {
2689 toggle_full_screen();
2695 case SDLK_s: //S: Step to next frame
2696 step_to_next_frame();
2700 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2704 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2708 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2711 toggle_audio_display();
2726 if (seek_by_bytes) {
2727 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2728 pos= cur_stream->video_current_pos;
2729 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2730 pos= cur_stream->audio_pkt.pos;
2732 pos = avio_tell(cur_stream->ic->pb);
2733 if (cur_stream->ic->bit_rate)
2734 incr *= cur_stream->ic->bit_rate / 8.0;
2738 stream_seek(cur_stream, pos, incr, 1);
2740 pos = get_master_clock(cur_stream);
2742 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2750 case SDL_MOUSEBUTTONDOWN:
2751 if (exit_on_mousedown) {
2755 case SDL_MOUSEMOTION:
2756 if(event.type ==SDL_MOUSEBUTTONDOWN){
2759 if(event.motion.state != SDL_PRESSED)
2764 if(seek_by_bytes || cur_stream->ic->duration<=0){
2765 uint64_t size= avio_size(cur_stream->ic->pb);
2766 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2770 int tns, thh, tmm, tss;
2771 tns = cur_stream->ic->duration/1000000LL;
2773 tmm = (tns%3600)/60;
2775 frac = x/cur_stream->width;
2780 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2781 hh, mm, ss, thh, tmm, tss);
2782 ts = frac*cur_stream->ic->duration;
2783 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2784 ts += cur_stream->ic->start_time;
2785 stream_seek(cur_stream, ts, 0, 0);
2789 case SDL_VIDEORESIZE:
2791 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2792 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2793 screen_width = cur_stream->width = event.resize.w;
2794 screen_height= cur_stream->height= event.resize.h;
2801 case FF_ALLOC_EVENT:
2802 video_open(event.user.data1);
2803 alloc_picture(event.user.data1);
2805 case FF_REFRESH_EVENT:
2806 video_refresh(event.user.data1);
2807 cur_stream->refresh=0;
2815 static int opt_frame_size(const char *opt, const char *arg)
2817 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
2818 return opt_default("video_size", arg);
2821 static int opt_width(const char *opt, const char *arg)
2823 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2827 static int opt_height(const char *opt, const char *arg)
2829 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2833 static int opt_format(const char *opt, const char *arg)
2835 file_iformat = av_find_input_format(arg);
2836 if (!file_iformat) {
2837 fprintf(stderr, "Unknown input format: %s\n", arg);
2838 return AVERROR(EINVAL);
2843 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2845 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
2846 return opt_default("pixel_format", arg);
2849 static int opt_sync(const char *opt, const char *arg)
2851 if (!strcmp(arg, "audio"))
2852 av_sync_type = AV_SYNC_AUDIO_MASTER;
2853 else if (!strcmp(arg, "video"))
2854 av_sync_type = AV_SYNC_VIDEO_MASTER;
2855 else if (!strcmp(arg, "ext"))
2856 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2858 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2864 static int opt_seek(const char *opt, const char *arg)
2866 start_time = parse_time_or_die(opt, arg, 1);
2870 static int opt_duration(const char *opt, const char *arg)
2872 duration = parse_time_or_die(opt, arg, 1);
2876 static int opt_thread_count(const char *opt, const char *arg)
2878 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2880 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2885 static int opt_show_mode(const char *opt, const char *arg)
2887 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
2888 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
2889 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
2890 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
2894 static int opt_input_file(const char *opt, const char *filename)
2896 if (input_filename) {
2897 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
2898 filename, input_filename);
2901 if (!strcmp(filename, "-"))
2903 input_filename = filename;
2907 static const OptionDef options[] = {
2908 #include "cmdutils_common_opts.h"
2909 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2910 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2911 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2912 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2913 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2914 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2915 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2916 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2917 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2918 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2919 { "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
2920 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2921 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2922 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2923 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2924 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2925 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2926 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2927 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2928 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2929 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2930 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2931 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2932 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2933 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2934 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2935 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2936 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2937 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2938 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
2939 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
2940 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
2941 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
2942 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
2943 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
2945 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
2947 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
2948 { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
2949 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2950 { "i", HAS_ARG, {(void *)opt_input_file}, "read specified file", "input_file"},
2954 static void show_usage(void)
2956 printf("Simple media player\n");
2957 printf("usage: %s [options] input_file\n", program_name);
2961 static int opt_help(const char *opt, const char *arg)
2963 av_log_set_callback(log_callback_help);
2965 show_help_options(options, "Main options:\n",
2967 show_help_options(options, "\nAdvanced options:\n",
2968 OPT_EXPERT, OPT_EXPERT);
2970 av_opt_show2(avcodec_opts[0], NULL,
2971 AV_OPT_FLAG_DECODING_PARAM, 0);
2973 av_opt_show2(avformat_opts, NULL,
2974 AV_OPT_FLAG_DECODING_PARAM, 0);
2975 #if !CONFIG_AVFILTER
2977 av_opt_show2(sws_opts, NULL,
2978 AV_OPT_FLAG_ENCODING_PARAM, 0);
2980 printf("\nWhile playing:\n"
2982 "f toggle full screen\n"
2984 "a cycle audio channel\n"
2985 "v cycle video channel\n"
2986 "t cycle subtitle channel\n"
2987 "w show audio waves\n"
2988 "s activate frame-step mode\n"
2989 "left/right seek backward/forward 10 seconds\n"
2990 "down/up seek backward/forward 1 minute\n"
2991 "mouse click seek to percentage in file corresponding to fraction of width\n"
2996 /* Called from the main */
2997 int main(int argc, char **argv)
3001 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3003 /* register all codecs, demux and protocols */
3004 avcodec_register_all();
3006 avdevice_register_all();
3009 avfilter_register_all();
3017 parse_options(argc, argv, options, opt_input_file);
3019 if (!input_filename) {
3021 fprintf(stderr, "An input file must be specified\n");
3022 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3026 if (display_disable) {
3029 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3031 flags &= ~SDL_INIT_AUDIO;
3032 #if !defined(__MINGW32__) && !defined(__APPLE__)
3033 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3035 if (SDL_Init (flags)) {
3036 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3037 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3041 if (!display_disable) {
3042 #if HAVE_SDL_VIDEO_SIZE
3043 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3044 fs_screen_width = vi->current_w;
3045 fs_screen_height = vi->current_h;
3049 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3050 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3051 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3053 av_init_packet(&flush_pkt);
3054 flush_pkt.data= "FLUSH";
3056 cur_stream = stream_open(input_filename, file_iformat);