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/pixdesc.h"
28 #include "libavformat/avformat.h"
29 #include "libavdevice/avdevice.h"
30 #include "libswscale/swscale.h"
31 #include "libavcodec/audioconvert.h"
32 #include "libavcodec/colorspace.h"
33 #include "libavcodec/opt.h"
34 #include "libavcodec/avfft.h"
37 # include "libavfilter/avfilter.h"
38 # include "libavfilter/avfiltergraph.h"
39 # include "libavfilter/graphparser.h"
45 #include <SDL_thread.h>
48 #undef main /* We don't want SDL to override our main() */
54 const char program_name[] = "FFplay";
55 const int program_birth_year = 2003;
59 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
60 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
63 /* SDL audio buffer size, in samples. Should be small to have precise
64 A/V sync as SDL does not have hardware buffer fullness info. */
65 #define SDL_AUDIO_BUFFER_SIZE 1024
67 /* no AV sync correction is done if below the AV sync threshold */
68 #define AV_SYNC_THRESHOLD 0.01
69 /* no AV correction is done if too big error */
70 #define AV_NOSYNC_THRESHOLD 10.0
72 #define FRAME_SKIP_FACTOR 0.05
74 /* maximum audio speed change to get correct sync */
75 #define SAMPLE_CORRECTION_PERCENT_MAX 10
77 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
78 #define AUDIO_DIFF_AVG_NB 20
80 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
81 #define SAMPLE_ARRAY_SIZE (2*65536)
84 static int sws_flags = SWS_BICUBIC;
87 typedef struct PacketQueue {
88 AVPacketList *first_pkt, *last_pkt;
96 #define VIDEO_PICTURE_QUEUE_SIZE 2
97 #define SUBPICTURE_QUEUE_SIZE 4
99 typedef struct VideoPicture {
100 double pts; ///<presentation time stamp for this picture
101 double target_clock; ///<av_gettime() time at which this should be displayed ideally
102 int64_t pos; ///<byte position in file
104 int width, height; /* source height & width */
106 enum PixelFormat pix_fmt;
109 AVFilterPicRef *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 *parse_tid;
126 SDL_Thread *video_tid;
127 SDL_Thread *refresh_tid;
128 AVInputFormat *iformat;
137 int read_pause_return;
139 int dtg_active_format;
144 double external_clock; /* external clock base */
145 int64_t external_clock_time;
148 double audio_diff_cum; /* used for AV difference average computation */
149 double audio_diff_avg_coef;
150 double audio_diff_threshold;
151 int audio_diff_avg_count;
154 int audio_hw_buf_size;
155 /* samples output by the codec. we reserve more space for avsync
157 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
158 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
160 unsigned int audio_buf_size; /* in bytes */
161 int audio_buf_index; /* in bytes */
162 AVPacket audio_pkt_temp;
164 enum SampleFormat audio_src_fmt;
165 AVAudioConvert *reformat_ctx;
167 int show_audio; /* if true, display audio samples */
168 int16_t sample_array[SAMPLE_ARRAY_SIZE];
169 int sample_array_index;
175 SDL_Thread *subtitle_tid;
177 int subtitle_stream_changed;
178 AVStream *subtitle_st;
179 PacketQueue subtitleq;
180 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
181 int subpq_size, subpq_rindex, subpq_windex;
182 SDL_mutex *subpq_mutex;
183 SDL_cond *subpq_cond;
186 double frame_last_pts;
187 double frame_last_delay;
188 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
192 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
193 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
194 int64_t video_current_pos; ///<current displayed file pos
195 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
196 int pictq_size, pictq_rindex, pictq_windex;
197 SDL_mutex *pictq_mutex;
198 SDL_cond *pictq_cond;
200 struct SwsContext *img_convert_ctx;
203 // QETimer *video_timer;
205 int width, height, xleft, ytop;
209 int64_t last_dts_for_fault_detection;
210 int64_t last_pts_for_fault_detection;
213 AVFilterContext *out_video_filter; ///<the last filter in the video chain
217 float skip_frames_index;
221 static void show_help(void);
222 static int audio_write_get_buf_size(VideoState *is);
224 /* options specified by the user */
225 static AVInputFormat *file_iformat;
226 static const char *input_filename;
227 static const char *window_title;
228 static int fs_screen_width;
229 static int fs_screen_height;
230 static int screen_width = 0;
231 static int screen_height = 0;
232 static int frame_width = 0;
233 static int frame_height = 0;
234 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
235 static int audio_disable;
236 static int video_disable;
237 static int wanted_stream[AVMEDIA_TYPE_NB]={
238 [AVMEDIA_TYPE_AUDIO]=-1,
239 [AVMEDIA_TYPE_VIDEO]=-1,
240 [AVMEDIA_TYPE_SUBTITLE]=-1,
242 static int seek_by_bytes=-1;
243 static int display_disable;
244 static int show_status = 1;
245 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
246 static int64_t start_time = AV_NOPTS_VALUE;
247 static int64_t duration = AV_NOPTS_VALUE;
248 static int debug = 0;
249 static int debug_mv = 0;
251 static int thread_count = 1;
252 static int workaround_bugs = 1;
254 static int genpts = 0;
255 static int lowres = 0;
256 static int idct = FF_IDCT_AUTO;
257 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
258 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
259 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
260 static int error_recognition = FF_ER_CAREFUL;
261 static int error_concealment = 3;
262 static int decoder_reorder_pts= -1;
265 static int framedrop=1;
267 static int rdftspeed=20;
269 static char *vfilters = NULL;
272 /* current context */
273 static int is_full_screen;
274 static VideoState *cur_stream;
275 static int64_t audio_callback_time;
277 static AVPacket flush_pkt;
279 #define FF_ALLOC_EVENT (SDL_USEREVENT)
280 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
281 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
283 static SDL_Surface *screen;
285 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
287 /* packet queue handling */
288 static void packet_queue_init(PacketQueue *q)
290 memset(q, 0, sizeof(PacketQueue));
291 q->mutex = SDL_CreateMutex();
292 q->cond = SDL_CreateCond();
293 packet_queue_put(q, &flush_pkt);
296 static void packet_queue_flush(PacketQueue *q)
298 AVPacketList *pkt, *pkt1;
300 SDL_LockMutex(q->mutex);
301 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
303 av_free_packet(&pkt->pkt);
310 SDL_UnlockMutex(q->mutex);
313 static void packet_queue_end(PacketQueue *q)
315 packet_queue_flush(q);
316 SDL_DestroyMutex(q->mutex);
317 SDL_DestroyCond(q->cond);
320 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
324 /* duplicate the packet */
325 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
328 pkt1 = av_malloc(sizeof(AVPacketList));
335 SDL_LockMutex(q->mutex);
341 q->last_pkt->next = pkt1;
344 q->size += pkt1->pkt.size + sizeof(*pkt1);
345 /* XXX: should duplicate packet data in DV case */
346 SDL_CondSignal(q->cond);
348 SDL_UnlockMutex(q->mutex);
352 static void packet_queue_abort(PacketQueue *q)
354 SDL_LockMutex(q->mutex);
356 q->abort_request = 1;
358 SDL_CondSignal(q->cond);
360 SDL_UnlockMutex(q->mutex);
363 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
364 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
369 SDL_LockMutex(q->mutex);
372 if (q->abort_request) {
379 q->first_pkt = pkt1->next;
383 q->size -= pkt1->pkt.size + sizeof(*pkt1);
392 SDL_CondWait(q->cond, q->mutex);
395 SDL_UnlockMutex(q->mutex);
399 static inline void fill_rectangle(SDL_Surface *screen,
400 int x, int y, int w, int h, int color)
407 SDL_FillRect(screen, &rect, color);
411 /* draw only the border of a rectangle */
412 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
416 /* fill the background */
420 w2 = s->width - (x + w);
426 h2 = s->height - (y + h);
429 fill_rectangle(screen,
433 fill_rectangle(screen,
434 s->xleft + s->width - w2, s->ytop,
437 fill_rectangle(screen,
438 s->xleft + w1, s->ytop,
439 s->width - w1 - w2, h1,
441 fill_rectangle(screen,
442 s->xleft + w1, s->ytop + s->height - h2,
443 s->width - w1 - w2, h2,
448 #define ALPHA_BLEND(a, oldp, newp, s)\
449 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
451 #define RGBA_IN(r, g, b, a, s)\
453 unsigned int v = ((const uint32_t *)(s))[0];\
454 a = (v >> 24) & 0xff;\
455 r = (v >> 16) & 0xff;\
456 g = (v >> 8) & 0xff;\
460 #define YUVA_IN(y, u, v, a, s, pal)\
462 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
463 a = (val >> 24) & 0xff;\
464 y = (val >> 16) & 0xff;\
465 u = (val >> 8) & 0xff;\
469 #define YUVA_OUT(d, y, u, v, a)\
471 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
477 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
479 int wrap, wrap3, width2, skip2;
480 int y, u, v, a, u1, v1, a1, w, h;
481 uint8_t *lum, *cb, *cr;
484 int dstx, dsty, dstw, dsth;
486 dstw = av_clip(rect->w, 0, imgw);
487 dsth = av_clip(rect->h, 0, imgh);
488 dstx = av_clip(rect->x, 0, imgw - dstw);
489 dsty = av_clip(rect->y, 0, imgh - dsth);
490 lum = dst->data[0] + dsty * dst->linesize[0];
491 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
492 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
494 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
496 wrap = dst->linesize[0];
497 wrap3 = rect->pict.linesize[0];
498 p = rect->pict.data[0];
499 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
507 YUVA_IN(y, u, v, a, p, pal);
508 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
509 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
510 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
516 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
517 YUVA_IN(y, u, v, a, p, pal);
521 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
523 YUVA_IN(y, u, v, a, p + BPP, pal);
527 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
528 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
529 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
536 YUVA_IN(y, u, v, a, p, pal);
537 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
538 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
539 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
543 p += wrap3 - dstw * BPP;
544 lum += wrap - dstw - dstx;
545 cb += dst->linesize[1] - width2 - skip2;
546 cr += dst->linesize[2] - width2 - skip2;
548 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
554 YUVA_IN(y, u, v, a, p, pal);
558 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
561 YUVA_IN(y, u, v, a, p, pal);
565 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
566 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
567 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
573 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
574 YUVA_IN(y, u, v, a, p, pal);
578 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
580 YUVA_IN(y, u, v, a, p + BPP, pal);
584 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
588 YUVA_IN(y, u, v, a, p, pal);
592 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
594 YUVA_IN(y, u, v, a, p + BPP, pal);
598 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
600 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
601 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
605 p += -wrap3 + 2 * BPP;
609 YUVA_IN(y, u, v, a, p, pal);
613 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
616 YUVA_IN(y, u, v, a, p, pal);
620 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
621 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
622 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
628 p += wrap3 + (wrap3 - dstw * BPP);
629 lum += wrap + (wrap - dstw - dstx);
630 cb += dst->linesize[1] - width2 - skip2;
631 cr += dst->linesize[2] - width2 - skip2;
633 /* handle odd height */
640 YUVA_IN(y, u, v, a, p, pal);
641 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
642 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
643 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
649 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
650 YUVA_IN(y, u, v, a, p, pal);
654 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
656 YUVA_IN(y, u, v, a, p + BPP, pal);
660 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
661 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
662 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
669 YUVA_IN(y, u, v, a, p, pal);
670 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
671 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
672 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
677 static void free_subpicture(SubPicture *sp)
681 for (i = 0; i < sp->sub.num_rects; i++)
683 av_freep(&sp->sub.rects[i]->pict.data[0]);
684 av_freep(&sp->sub.rects[i]->pict.data[1]);
685 av_freep(&sp->sub.rects[i]);
688 av_free(sp->sub.rects);
690 memset(&sp->sub, 0, sizeof(AVSubtitle));
693 static void video_image_display(VideoState *is)
699 int width, height, x, y;
703 vp = &is->pictq[is->pictq_rindex];
706 if (vp->picref->pixel_aspect.num == 0)
709 aspect_ratio = av_q2d(vp->picref->pixel_aspect);
712 /* XXX: use variable in the frame */
713 if (is->video_st->sample_aspect_ratio.num)
714 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
715 else if (is->video_st->codec->sample_aspect_ratio.num)
716 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
720 if (aspect_ratio <= 0.0)
722 aspect_ratio *= (float)vp->width / (float)vp->height;
723 /* if an active format is indicated, then it overrides the
726 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
727 is->dtg_active_format = is->video_st->codec->dtg_active_format;
728 printf("dtg_active_format=%d\n", is->dtg_active_format);
732 switch(is->video_st->codec->dtg_active_format) {
733 case FF_DTG_AFD_SAME:
738 aspect_ratio = 4.0 / 3.0;
740 case FF_DTG_AFD_16_9:
741 aspect_ratio = 16.0 / 9.0;
743 case FF_DTG_AFD_14_9:
744 aspect_ratio = 14.0 / 9.0;
746 case FF_DTG_AFD_4_3_SP_14_9:
747 aspect_ratio = 14.0 / 9.0;
749 case FF_DTG_AFD_16_9_SP_14_9:
750 aspect_ratio = 14.0 / 9.0;
752 case FF_DTG_AFD_SP_4_3:
753 aspect_ratio = 4.0 / 3.0;
760 if (is->subpq_size > 0)
762 sp = &is->subpq[is->subpq_rindex];
764 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
766 SDL_LockYUVOverlay (vp->bmp);
768 pict.data[0] = vp->bmp->pixels[0];
769 pict.data[1] = vp->bmp->pixels[2];
770 pict.data[2] = vp->bmp->pixels[1];
772 pict.linesize[0] = vp->bmp->pitches[0];
773 pict.linesize[1] = vp->bmp->pitches[2];
774 pict.linesize[2] = vp->bmp->pitches[1];
776 for (i = 0; i < sp->sub.num_rects; i++)
777 blend_subrect(&pict, sp->sub.rects[i],
778 vp->bmp->w, vp->bmp->h);
780 SDL_UnlockYUVOverlay (vp->bmp);
786 /* XXX: we suppose the screen has a 1.0 pixel ratio */
788 width = ((int)rint(height * aspect_ratio)) & ~1;
789 if (width > is->width) {
791 height = ((int)rint(width / aspect_ratio)) & ~1;
793 x = (is->width - width) / 2;
794 y = (is->height - height) / 2;
795 if (!is->no_background) {
796 /* fill the background */
797 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
799 is->no_background = 0;
801 rect.x = is->xleft + x;
802 rect.y = is->ytop + y;
805 SDL_DisplayYUVOverlay(vp->bmp, &rect);
808 fill_rectangle(screen,
809 is->xleft, is->ytop, is->width, is->height,
810 QERGB(0x00, 0x00, 0x00));
815 static inline int compute_mod(int a, int b)
824 static void video_audio_display(VideoState *s)
826 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
827 int ch, channels, h, h2, bgcolor, fgcolor;
829 int rdft_bits, nb_freq;
831 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
833 nb_freq= 1<<(rdft_bits-1);
835 /* compute display index : center on currently output samples */
836 channels = s->audio_st->codec->channels;
837 nb_display_channels = channels;
839 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
841 delay = audio_write_get_buf_size(s);
844 /* to be more precise, we take into account the time spent since
845 the last buffer computation */
846 if (audio_callback_time) {
847 time_diff = av_gettime() - audio_callback_time;
848 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
851 delay += 2*data_used;
852 if (delay < data_used)
855 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
856 if(s->show_audio==1){
858 for(i=0; i<1000; i+=channels){
859 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
860 int a= s->sample_array[idx];
861 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
862 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
863 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
865 if(h<score && (b^c)<0){
872 s->last_i_start = i_start;
874 i_start = s->last_i_start;
877 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
878 if(s->show_audio==1){
879 fill_rectangle(screen,
880 s->xleft, s->ytop, s->width, s->height,
883 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
885 /* total height for one channel */
886 h = s->height / nb_display_channels;
887 /* graph height / 2 */
889 for(ch = 0;ch < nb_display_channels; ch++) {
891 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
892 for(x = 0; x < s->width; x++) {
893 y = (s->sample_array[i] * h2) >> 15;
900 fill_rectangle(screen,
901 s->xleft + x, ys, 1, y,
904 if (i >= SAMPLE_ARRAY_SIZE)
905 i -= SAMPLE_ARRAY_SIZE;
909 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
911 for(ch = 1;ch < nb_display_channels; ch++) {
912 y = s->ytop + ch * h;
913 fill_rectangle(screen,
914 s->xleft, y, s->width, 1,
917 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
919 nb_display_channels= FFMIN(nb_display_channels, 2);
920 if(rdft_bits != s->rdft_bits){
921 av_rdft_end(s->rdft);
922 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
923 s->rdft_bits= rdft_bits;
926 FFTSample data[2][2*nb_freq];
927 for(ch = 0;ch < nb_display_channels; ch++) {
929 for(x = 0; x < 2*nb_freq; x++) {
930 double w= (x-nb_freq)*(1.0/nb_freq);
931 data[ch][x]= s->sample_array[i]*(1.0-w*w);
933 if (i >= SAMPLE_ARRAY_SIZE)
934 i -= SAMPLE_ARRAY_SIZE;
936 av_rdft_calc(s->rdft, data[ch]);
938 //least efficient way to do this, we should of course directly access it but its more than fast enough
939 for(y=0; y<s->height; y++){
940 double w= 1/sqrt(nb_freq);
941 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]));
942 int b= sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0] + data[1][2*y+1]*data[1][2*y+1]));
945 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
947 fill_rectangle(screen,
948 s->xpos, s->height-y, 1, 1,
952 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
954 if(s->xpos >= s->width)
959 static int video_open(VideoState *is){
960 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
963 if(is_full_screen) flags |= SDL_FULLSCREEN;
964 else flags |= SDL_RESIZABLE;
966 if (is_full_screen && fs_screen_width) {
968 h = fs_screen_height;
969 } else if(!is_full_screen && screen_width){
973 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
974 w = is->out_video_filter->inputs[0]->w;
975 h = is->out_video_filter->inputs[0]->h;
977 }else if (is->video_st && is->video_st->codec->width){
978 w = is->video_st->codec->width;
979 h = is->video_st->codec->height;
985 if(screen && is->width == screen->w && screen->w == w
986 && is->height== screen->h && screen->h == h)
990 screen = SDL_SetVideoMode(w, h, 0, flags);
992 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
993 screen = SDL_SetVideoMode(w, h, 24, flags);
996 fprintf(stderr, "SDL: could not set video mode - exiting\n");
1000 window_title = input_filename;
1001 SDL_WM_SetCaption(window_title, window_title);
1003 is->width = screen->w;
1004 is->height = screen->h;
1009 /* display the current picture, if any */
1010 static void video_display(VideoState *is)
1013 video_open(cur_stream);
1014 if (is->audio_st && is->show_audio)
1015 video_audio_display(is);
1016 else if (is->video_st)
1017 video_image_display(is);
1020 static int refresh_thread(void *opaque)
1022 VideoState *is= opaque;
1023 while(!is->abort_request){
1025 event.type = FF_REFRESH_EVENT;
1026 event.user.data1 = opaque;
1029 SDL_PushEvent(&event);
1031 usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1036 /* get the current audio clock value */
1037 static double get_audio_clock(VideoState *is)
1040 int hw_buf_size, bytes_per_sec;
1041 pts = is->audio_clock;
1042 hw_buf_size = audio_write_get_buf_size(is);
1045 bytes_per_sec = is->audio_st->codec->sample_rate *
1046 2 * is->audio_st->codec->channels;
1049 pts -= (double)hw_buf_size / bytes_per_sec;
1053 /* get the current video clock value */
1054 static double get_video_clock(VideoState *is)
1057 return is->video_current_pts;
1059 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1063 /* get the current external clock value */
1064 static double get_external_clock(VideoState *is)
1068 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1071 /* get the current master clock value */
1072 static double get_master_clock(VideoState *is)
1076 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1078 val = get_video_clock(is);
1080 val = get_audio_clock(is);
1081 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1083 val = get_audio_clock(is);
1085 val = get_video_clock(is);
1087 val = get_external_clock(is);
1092 /* seek in the stream */
1093 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1095 if (!is->seek_req) {
1098 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1100 is->seek_flags |= AVSEEK_FLAG_BYTE;
1105 /* pause or resume the video */
1106 static void stream_pause(VideoState *is)
1109 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1110 if(is->read_pause_return != AVERROR(ENOSYS)){
1111 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1113 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1115 is->paused = !is->paused;
1118 static double compute_target_time(double frame_current_pts, VideoState *is)
1120 double delay, sync_threshold, diff;
1122 /* compute nominal delay */
1123 delay = frame_current_pts - is->frame_last_pts;
1124 if (delay <= 0 || delay >= 10.0) {
1125 /* if incorrect delay, use previous one */
1126 delay = is->frame_last_delay;
1128 is->frame_last_delay = delay;
1130 is->frame_last_pts = frame_current_pts;
1132 /* update delay to follow master synchronisation source */
1133 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1134 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1135 /* if video is slave, we try to correct big delays by
1136 duplicating or deleting a frame */
1137 diff = get_video_clock(is) - get_master_clock(is);
1139 /* skip or repeat frame. We take into account the
1140 delay to compute the threshold. I still don't know
1141 if it is the best guess */
1142 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1143 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1144 if (diff <= -sync_threshold)
1146 else if (diff >= sync_threshold)
1150 is->frame_timer += delay;
1151 #if defined(DEBUG_SYNC)
1152 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1153 delay, actual_delay, frame_current_pts, -diff);
1156 return is->frame_timer;
1159 /* called to display each frame */
1160 static void video_refresh_timer(void *opaque)
1162 VideoState *is = opaque;
1165 SubPicture *sp, *sp2;
1169 if (is->pictq_size == 0) {
1170 //nothing to do, no picture to display in the que
1172 double time= av_gettime()/1000000.0;
1174 /* dequeue the picture */
1175 vp = &is->pictq[is->pictq_rindex];
1177 if(time < vp->target_clock)
1179 /* update current video pts */
1180 is->video_current_pts = vp->pts;
1181 is->video_current_pts_drift = is->video_current_pts - time;
1182 is->video_current_pos = vp->pos;
1183 if(is->pictq_size > 1){
1184 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1185 assert(nextvp->target_clock >= vp->target_clock);
1186 next_target= nextvp->target_clock;
1188 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1190 if(framedrop && time > next_target){
1191 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1192 if(is->pictq_size > 1 || time > next_target + 0.5){
1193 /* update queue size and signal for next picture */
1194 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1195 is->pictq_rindex = 0;
1197 SDL_LockMutex(is->pictq_mutex);
1199 SDL_CondSignal(is->pictq_cond);
1200 SDL_UnlockMutex(is->pictq_mutex);
1205 if(is->subtitle_st) {
1206 if (is->subtitle_stream_changed) {
1207 SDL_LockMutex(is->subpq_mutex);
1209 while (is->subpq_size) {
1210 free_subpicture(&is->subpq[is->subpq_rindex]);
1212 /* update queue size and signal for next picture */
1213 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1214 is->subpq_rindex = 0;
1218 is->subtitle_stream_changed = 0;
1220 SDL_CondSignal(is->subpq_cond);
1221 SDL_UnlockMutex(is->subpq_mutex);
1223 if (is->subpq_size > 0) {
1224 sp = &is->subpq[is->subpq_rindex];
1226 if (is->subpq_size > 1)
1227 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1231 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1232 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1234 free_subpicture(sp);
1236 /* update queue size and signal for next picture */
1237 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1238 is->subpq_rindex = 0;
1240 SDL_LockMutex(is->subpq_mutex);
1242 SDL_CondSignal(is->subpq_cond);
1243 SDL_UnlockMutex(is->subpq_mutex);
1249 /* display picture */
1252 /* update queue size and signal for next picture */
1253 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1254 is->pictq_rindex = 0;
1256 SDL_LockMutex(is->pictq_mutex);
1258 SDL_CondSignal(is->pictq_cond);
1259 SDL_UnlockMutex(is->pictq_mutex);
1261 } else if (is->audio_st) {
1262 /* draw the next audio frame */
1264 /* if only audio stream, then display the audio bars (better
1265 than nothing, just to test the implementation */
1267 /* display picture */
1271 static int64_t last_time;
1273 int aqsize, vqsize, sqsize;
1276 cur_time = av_gettime();
1277 if (!last_time || (cur_time - last_time) >= 30000) {
1282 aqsize = is->audioq.size;
1284 vqsize = is->videoq.size;
1285 if (is->subtitle_st)
1286 sqsize = is->subtitleq.size;
1288 if (is->audio_st && is->video_st)
1289 av_diff = get_audio_clock(is) - get_video_clock(is);
1290 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1291 get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1293 last_time = cur_time;
1298 /* allocate a picture (needs to do that in main thread to avoid
1299 potential locking problems */
1300 static void alloc_picture(void *opaque)
1302 VideoState *is = opaque;
1305 vp = &is->pictq[is->pictq_windex];
1308 SDL_FreeYUVOverlay(vp->bmp);
1312 avfilter_unref_pic(vp->picref);
1315 vp->width = is->out_video_filter->inputs[0]->w;
1316 vp->height = is->out_video_filter->inputs[0]->h;
1317 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1319 vp->width = is->video_st->codec->width;
1320 vp->height = is->video_st->codec->height;
1321 vp->pix_fmt = is->video_st->codec->pix_fmt;
1324 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1328 SDL_LockMutex(is->pictq_mutex);
1330 SDL_CondSignal(is->pictq_cond);
1331 SDL_UnlockMutex(is->pictq_mutex);
1336 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1338 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1345 /* wait until we have space to put a new picture */
1346 SDL_LockMutex(is->pictq_mutex);
1348 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1349 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1351 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1352 !is->videoq.abort_request) {
1353 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1355 SDL_UnlockMutex(is->pictq_mutex);
1357 if (is->videoq.abort_request)
1360 vp = &is->pictq[is->pictq_windex];
1362 /* alloc or resize hardware picture buffer */
1365 vp->width != is->out_video_filter->inputs[0]->w ||
1366 vp->height != is->out_video_filter->inputs[0]->h) {
1368 vp->width != is->video_st->codec->width ||
1369 vp->height != is->video_st->codec->height) {
1375 /* the allocation must be done in the main thread to avoid
1377 event.type = FF_ALLOC_EVENT;
1378 event.user.data1 = is;
1379 SDL_PushEvent(&event);
1381 /* wait until the picture is allocated */
1382 SDL_LockMutex(is->pictq_mutex);
1383 while (!vp->allocated && !is->videoq.abort_request) {
1384 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1386 SDL_UnlockMutex(is->pictq_mutex);
1388 if (is->videoq.abort_request)
1392 /* if the frame is not skipped, then display it */
1397 avfilter_unref_pic(vp->picref);
1398 vp->picref = src_frame->opaque;
1401 /* get a pointer on the bitmap */
1402 SDL_LockYUVOverlay (vp->bmp);
1404 dst_pix_fmt = PIX_FMT_YUV420P;
1405 memset(&pict,0,sizeof(AVPicture));
1406 pict.data[0] = vp->bmp->pixels[0];
1407 pict.data[1] = vp->bmp->pixels[2];
1408 pict.data[2] = vp->bmp->pixels[1];
1410 pict.linesize[0] = vp->bmp->pitches[0];
1411 pict.linesize[1] = vp->bmp->pitches[2];
1412 pict.linesize[2] = vp->bmp->pitches[1];
1415 pict_src.data[0] = src_frame->data[0];
1416 pict_src.data[1] = src_frame->data[1];
1417 pict_src.data[2] = src_frame->data[2];
1419 pict_src.linesize[0] = src_frame->linesize[0];
1420 pict_src.linesize[1] = src_frame->linesize[1];
1421 pict_src.linesize[2] = src_frame->linesize[2];
1423 //FIXME use direct rendering
1424 av_picture_copy(&pict, &pict_src,
1425 vp->pix_fmt, vp->width, vp->height);
1427 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1428 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1429 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1430 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1431 if (is->img_convert_ctx == NULL) {
1432 fprintf(stderr, "Cannot initialize the conversion context\n");
1435 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1436 0, vp->height, pict.data, pict.linesize);
1438 /* update the bitmap content */
1439 SDL_UnlockYUVOverlay(vp->bmp);
1444 /* now we can update the picture count */
1445 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1446 is->pictq_windex = 0;
1447 SDL_LockMutex(is->pictq_mutex);
1448 vp->target_clock= compute_target_time(vp->pts, is);
1451 SDL_UnlockMutex(is->pictq_mutex);
1457 * compute the exact PTS for the picture if it is omitted in the stream
1458 * @param pts1 the dts of the pkt / pts of the frame
1460 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1462 double frame_delay, pts;
1467 /* update video clock with pts, if present */
1468 is->video_clock = pts;
1470 pts = is->video_clock;
1472 /* update video clock for next frame */
1473 frame_delay = av_q2d(is->video_st->codec->time_base);
1474 /* for MPEG2, the frame can be repeated, so we update the
1475 clock accordingly */
1476 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1477 is->video_clock += frame_delay;
1479 #if defined(DEBUG_SYNC) && 0
1480 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1481 av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1483 return queue_picture(is, src_frame, pts, pos);
1486 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1488 int len1, got_picture, i;
1490 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1493 if(pkt->data == flush_pkt.data){
1494 avcodec_flush_buffers(is->video_st->codec);
1496 SDL_LockMutex(is->pictq_mutex);
1497 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1498 for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1499 is->pictq[i].target_clock= 0;
1501 while (is->pictq_size && !is->videoq.abort_request) {
1502 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1504 is->video_current_pos= -1;
1505 SDL_UnlockMutex(is->pictq_mutex);
1507 is->last_dts_for_fault_detection=
1508 is->last_pts_for_fault_detection= INT64_MIN;
1509 is->frame_last_pts= AV_NOPTS_VALUE;
1510 is->frame_last_delay = 0;
1511 is->frame_timer = (double)av_gettime() / 1000000.0;
1513 is->skip_frames_index= 0;
1517 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1518 this packet, if any */
1519 is->video_st->codec->reordered_opaque= pkt->pts;
1520 len1 = avcodec_decode_video2(is->video_st->codec,
1521 frame, &got_picture,
1525 if(pkt->dts != AV_NOPTS_VALUE){
1526 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1527 is->last_dts_for_fault_detection= pkt->dts;
1529 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1530 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1531 is->last_pts_for_fault_detection= frame->reordered_opaque;
1535 if( ( decoder_reorder_pts==1
1536 || (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
1537 || pkt->dts == AV_NOPTS_VALUE)
1538 && frame->reordered_opaque != AV_NOPTS_VALUE)
1539 *pts= frame->reordered_opaque;
1540 else if(pkt->dts != AV_NOPTS_VALUE)
1548 is->skip_frames_index += 1;
1549 if(is->skip_frames_index >= is->skip_frames){
1550 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1565 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1567 AVFilterContext *ctx = codec->opaque;
1568 AVFilterPicRef *ref;
1569 int perms = AV_PERM_WRITE;
1570 int w, h, stride[4];
1573 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1574 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1575 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1576 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1578 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1582 avcodec_align_dimensions2(codec, &w, &h, stride);
1583 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1587 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1590 ref->w = codec->width;
1591 ref->h = codec->height;
1592 for(int i = 0; i < 3; i ++) {
1593 unsigned hshift = i == 0 ? 0 : av_pix_fmt_descriptors[ref->pic->format].log2_chroma_w;
1594 unsigned vshift = i == 0 ? 0 : av_pix_fmt_descriptors[ref->pic->format].log2_chroma_h;
1596 ref->data[i] += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1597 pic->data[i] = ref->data[i];
1598 pic->linesize[i] = ref->linesize[i];
1602 pic->type = FF_BUFFER_TYPE_USER;
1606 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1608 memset(pic->data, 0, sizeof(pic->data));
1609 avfilter_unref_pic(pic->opaque);
1612 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1614 FilterPriv *priv = ctx->priv;
1615 AVCodecContext *codec;
1616 if(!opaque) return -1;
1619 codec = priv->is->video_st->codec;
1620 codec->opaque = ctx;
1621 if(codec->codec->capabilities & CODEC_CAP_DR1) {
1623 codec->get_buffer = input_get_buffer;
1624 codec->release_buffer = input_release_buffer;
1627 priv->frame = avcodec_alloc_frame();
1632 static void input_uninit(AVFilterContext *ctx)
1634 FilterPriv *priv = ctx->priv;
1635 av_free(priv->frame);
1638 static int input_request_frame(AVFilterLink *link)
1640 FilterPriv *priv = link->src->priv;
1641 AVFilterPicRef *picref;
1646 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1647 av_free_packet(&pkt);
1652 picref = avfilter_ref_pic(priv->frame->opaque, ~0);
1654 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1655 av_picture_copy((AVPicture *)&picref->data, (AVPicture *)priv->frame,
1656 picref->pic->format, link->w, link->h);
1658 av_free_packet(&pkt);
1661 picref->pos = pkt.pos;
1662 picref->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1663 avfilter_start_frame(link, picref);
1664 avfilter_draw_slice(link, 0, link->h, 1);
1665 avfilter_end_frame(link);
1670 static int input_query_formats(AVFilterContext *ctx)
1672 FilterPriv *priv = ctx->priv;
1673 enum PixelFormat pix_fmts[] = {
1674 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1677 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1681 static int input_config_props(AVFilterLink *link)
1683 FilterPriv *priv = link->src->priv;
1684 AVCodecContext *c = priv->is->video_st->codec;
1687 link->h = c->height;
1692 static AVFilter input_filter =
1694 .name = "ffplay_input",
1696 .priv_size = sizeof(FilterPriv),
1699 .uninit = input_uninit,
1701 .query_formats = input_query_formats,
1703 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1704 .outputs = (AVFilterPad[]) {{ .name = "default",
1705 .type = AVMEDIA_TYPE_VIDEO,
1706 .request_frame = input_request_frame,
1707 .config_props = input_config_props, },
1711 static void output_end_frame(AVFilterLink *link)
1715 static int output_query_formats(AVFilterContext *ctx)
1717 enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1719 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1723 static int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
1724 int64_t *pts, int64_t *pos)
1726 AVFilterPicRef *pic;
1728 if(avfilter_request_frame(ctx->inputs[0]))
1730 if(!(pic = ctx->inputs[0]->cur_pic))
1732 ctx->inputs[0]->cur_pic = NULL;
1734 frame->opaque = pic;
1738 memcpy(frame->data, pic->data, sizeof(frame->data));
1739 memcpy(frame->linesize, pic->linesize, sizeof(frame->linesize));
1744 static AVFilter output_filter =
1746 .name = "ffplay_output",
1748 .query_formats = output_query_formats,
1750 .inputs = (AVFilterPad[]) {{ .name = "default",
1751 .type = AVMEDIA_TYPE_VIDEO,
1752 .end_frame = output_end_frame,
1753 .min_perms = AV_PERM_READ, },
1755 .outputs = (AVFilterPad[]) {{ .name = NULL }},
1757 #endif /* CONFIG_AVFILTER */
1759 static int video_thread(void *arg)
1761 VideoState *is = arg;
1762 AVFrame *frame= avcodec_alloc_frame();
1769 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1770 AVFilterGraph *graph = av_mallocz(sizeof(AVFilterGraph));
1771 graph->scale_sws_opts = av_strdup("sws_flags=bilinear");
1773 if(!(filt_src = avfilter_open(&input_filter, "src"))) goto the_end;
1774 if(!(filt_out = avfilter_open(&output_filter, "out"))) goto the_end;
1776 if(avfilter_init_filter(filt_src, NULL, is)) goto the_end;
1777 if(avfilter_init_filter(filt_out, NULL, frame)) goto the_end;
1781 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1782 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1784 outputs->name = av_strdup("in");
1785 outputs->filter = filt_src;
1786 outputs->pad_idx = 0;
1787 outputs->next = NULL;
1789 inputs->name = av_strdup("out");
1790 inputs->filter = filt_out;
1791 inputs->pad_idx = 0;
1792 inputs->next = NULL;
1794 if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1796 av_freep(&vfilters);
1798 if(avfilter_link(filt_src, 0, filt_out, 0) < 0) goto the_end;
1800 avfilter_graph_add_filter(graph, filt_src);
1801 avfilter_graph_add_filter(graph, filt_out);
1803 if(avfilter_graph_check_validity(graph, NULL)) goto the_end;
1804 if(avfilter_graph_config_formats(graph, NULL)) goto the_end;
1805 if(avfilter_graph_config_links(graph, NULL)) goto the_end;
1807 is->out_video_filter = filt_out;
1811 #if !CONFIG_AVFILTER
1814 while (is->paused && !is->videoq.abort_request)
1817 ret = get_filtered_video_frame(filt_out, frame, &pts_int, &pos);
1819 ret = get_video_frame(is, frame, &pts_int, &pkt);
1822 if (ret < 0) goto the_end;
1827 pts = pts_int*av_q2d(is->video_st->time_base);
1830 ret = output_picture2(is, frame, pts, pos);
1832 ret = output_picture2(is, frame, pts, pkt.pos);
1833 av_free_packet(&pkt);
1840 stream_pause(cur_stream);
1844 avfilter_graph_destroy(graph);
1851 static int subtitle_thread(void *arg)
1853 VideoState *is = arg;
1855 AVPacket pkt1, *pkt = &pkt1;
1856 int len1, got_subtitle;
1859 int r, g, b, y, u, v, a;
1862 while (is->paused && !is->subtitleq.abort_request) {
1865 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1868 if(pkt->data == flush_pkt.data){
1869 avcodec_flush_buffers(is->subtitle_st->codec);
1872 SDL_LockMutex(is->subpq_mutex);
1873 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1874 !is->subtitleq.abort_request) {
1875 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1877 SDL_UnlockMutex(is->subpq_mutex);
1879 if (is->subtitleq.abort_request)
1882 sp = &is->subpq[is->subpq_windex];
1884 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1885 this packet, if any */
1887 if (pkt->pts != AV_NOPTS_VALUE)
1888 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1890 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1891 &sp->sub, &got_subtitle,
1895 if (got_subtitle && sp->sub.format == 0) {
1898 for (i = 0; i < sp->sub.num_rects; i++)
1900 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1902 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1903 y = RGB_TO_Y_CCIR(r, g, b);
1904 u = RGB_TO_U_CCIR(r, g, b, 0);
1905 v = RGB_TO_V_CCIR(r, g, b, 0);
1906 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1910 /* now we can update the picture count */
1911 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1912 is->subpq_windex = 0;
1913 SDL_LockMutex(is->subpq_mutex);
1915 SDL_UnlockMutex(is->subpq_mutex);
1917 av_free_packet(pkt);
1920 // stream_pause(cur_stream);
1926 /* copy samples for viewing in editor window */
1927 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1929 int size, len, channels;
1931 channels = is->audio_st->codec->channels;
1933 size = samples_size / sizeof(short);
1935 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1938 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1940 is->sample_array_index += len;
1941 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1942 is->sample_array_index = 0;
1947 /* return the new audio buffer size (samples can be added or deleted
1948 to get better sync if video or external master clock) */
1949 static int synchronize_audio(VideoState *is, short *samples,
1950 int samples_size1, double pts)
1952 int n, samples_size;
1955 n = 2 * is->audio_st->codec->channels;
1956 samples_size = samples_size1;
1958 /* if not master, then we try to remove or add samples to correct the clock */
1959 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1960 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1961 double diff, avg_diff;
1962 int wanted_size, min_size, max_size, nb_samples;
1964 ref_clock = get_master_clock(is);
1965 diff = get_audio_clock(is) - ref_clock;
1967 if (diff < AV_NOSYNC_THRESHOLD) {
1968 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1969 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1970 /* not enough measures to have a correct estimate */
1971 is->audio_diff_avg_count++;
1973 /* estimate the A-V difference */
1974 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1976 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1977 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1978 nb_samples = samples_size / n;
1980 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1981 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1982 if (wanted_size < min_size)
1983 wanted_size = min_size;
1984 else if (wanted_size > max_size)
1985 wanted_size = max_size;
1987 /* add or remove samples to correction the synchro */
1988 if (wanted_size < samples_size) {
1989 /* remove samples */
1990 samples_size = wanted_size;
1991 } else if (wanted_size > samples_size) {
1992 uint8_t *samples_end, *q;
1996 nb = (samples_size - wanted_size);
1997 samples_end = (uint8_t *)samples + samples_size - n;
1998 q = samples_end + n;
2000 memcpy(q, samples_end, n);
2004 samples_size = wanted_size;
2008 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2009 diff, avg_diff, samples_size - samples_size1,
2010 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2014 /* too big difference : may be initial PTS errors, so
2016 is->audio_diff_avg_count = 0;
2017 is->audio_diff_cum = 0;
2021 return samples_size;
2024 /* decode one audio frame and returns its uncompressed size */
2025 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2027 AVPacket *pkt_temp = &is->audio_pkt_temp;
2028 AVPacket *pkt = &is->audio_pkt;
2029 AVCodecContext *dec= is->audio_st->codec;
2030 int n, len1, data_size;
2034 /* NOTE: the audio packet can contain several frames */
2035 while (pkt_temp->size > 0) {
2036 data_size = sizeof(is->audio_buf1);
2037 len1 = avcodec_decode_audio3(dec,
2038 (int16_t *)is->audio_buf1, &data_size,
2041 /* if error, we skip the frame */
2046 pkt_temp->data += len1;
2047 pkt_temp->size -= len1;
2051 if (dec->sample_fmt != is->audio_src_fmt) {
2052 if (is->reformat_ctx)
2053 av_audio_convert_free(is->reformat_ctx);
2054 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
2055 dec->sample_fmt, 1, NULL, 0);
2056 if (!is->reformat_ctx) {
2057 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2058 avcodec_get_sample_fmt_name(dec->sample_fmt),
2059 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
2062 is->audio_src_fmt= dec->sample_fmt;
2065 if (is->reformat_ctx) {
2066 const void *ibuf[6]= {is->audio_buf1};
2067 void *obuf[6]= {is->audio_buf2};
2068 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
2069 int ostride[6]= {2};
2070 int len= data_size/istride[0];
2071 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2072 printf("av_audio_convert() failed\n");
2075 is->audio_buf= is->audio_buf2;
2076 /* FIXME: existing code assume that data_size equals framesize*channels*2
2077 remove this legacy cruft */
2080 is->audio_buf= is->audio_buf1;
2083 /* if no pts, then compute it */
2084 pts = is->audio_clock;
2086 n = 2 * dec->channels;
2087 is->audio_clock += (double)data_size /
2088 (double)(n * dec->sample_rate);
2089 #if defined(DEBUG_SYNC)
2091 static double last_clock;
2092 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2093 is->audio_clock - last_clock,
2094 is->audio_clock, pts);
2095 last_clock = is->audio_clock;
2101 /* free the current packet */
2103 av_free_packet(pkt);
2105 if (is->paused || is->audioq.abort_request) {
2109 /* read next packet */
2110 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2112 if(pkt->data == flush_pkt.data){
2113 avcodec_flush_buffers(dec);
2117 pkt_temp->data = pkt->data;
2118 pkt_temp->size = pkt->size;
2120 /* if update the audio clock with the pts */
2121 if (pkt->pts != AV_NOPTS_VALUE) {
2122 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2127 /* get the current audio output buffer size, in samples. With SDL, we
2128 cannot have a precise information */
2129 static int audio_write_get_buf_size(VideoState *is)
2131 return is->audio_buf_size - is->audio_buf_index;
2135 /* prepare a new audio buffer */
2136 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2138 VideoState *is = opaque;
2139 int audio_size, len1;
2142 audio_callback_time = av_gettime();
2145 if (is->audio_buf_index >= is->audio_buf_size) {
2146 audio_size = audio_decode_frame(is, &pts);
2147 if (audio_size < 0) {
2148 /* if error, just output silence */
2149 is->audio_buf = is->audio_buf1;
2150 is->audio_buf_size = 1024;
2151 memset(is->audio_buf, 0, is->audio_buf_size);
2154 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2155 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2157 is->audio_buf_size = audio_size;
2159 is->audio_buf_index = 0;
2161 len1 = is->audio_buf_size - is->audio_buf_index;
2164 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2167 is->audio_buf_index += len1;
2171 /* open a given stream. Return 0 if OK */
2172 static int stream_component_open(VideoState *is, int stream_index)
2174 AVFormatContext *ic = is->ic;
2175 AVCodecContext *avctx;
2177 SDL_AudioSpec wanted_spec, spec;
2179 if (stream_index < 0 || stream_index >= ic->nb_streams)
2181 avctx = ic->streams[stream_index]->codec;
2183 /* prepare audio output */
2184 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2185 if (avctx->channels > 0) {
2186 avctx->request_channels = FFMIN(2, avctx->channels);
2188 avctx->request_channels = 2;
2192 codec = avcodec_find_decoder(avctx->codec_id);
2193 avctx->debug_mv = debug_mv;
2194 avctx->debug = debug;
2195 avctx->workaround_bugs = workaround_bugs;
2196 avctx->lowres = lowres;
2197 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2198 avctx->idct_algo= idct;
2199 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2200 avctx->skip_frame= skip_frame;
2201 avctx->skip_idct= skip_idct;
2202 avctx->skip_loop_filter= skip_loop_filter;
2203 avctx->error_recognition= error_recognition;
2204 avctx->error_concealment= error_concealment;
2205 avcodec_thread_init(avctx, thread_count);
2207 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0);
2210 avcodec_open(avctx, codec) < 0)
2213 /* prepare audio output */
2214 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2215 wanted_spec.freq = avctx->sample_rate;
2216 wanted_spec.format = AUDIO_S16SYS;
2217 wanted_spec.channels = avctx->channels;
2218 wanted_spec.silence = 0;
2219 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2220 wanted_spec.callback = sdl_audio_callback;
2221 wanted_spec.userdata = is;
2222 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2223 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2226 is->audio_hw_buf_size = spec.size;
2227 is->audio_src_fmt= SAMPLE_FMT_S16;
2230 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2231 switch(avctx->codec_type) {
2232 case AVMEDIA_TYPE_AUDIO:
2233 is->audio_stream = stream_index;
2234 is->audio_st = ic->streams[stream_index];
2235 is->audio_buf_size = 0;
2236 is->audio_buf_index = 0;
2238 /* init averaging filter */
2239 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2240 is->audio_diff_avg_count = 0;
2241 /* since we do not have a precise anough audio fifo fullness,
2242 we correct audio sync only if larger than this threshold */
2243 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2245 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2246 packet_queue_init(&is->audioq);
2249 case AVMEDIA_TYPE_VIDEO:
2250 is->video_stream = stream_index;
2251 is->video_st = ic->streams[stream_index];
2253 // is->video_current_pts_time = av_gettime();
2255 packet_queue_init(&is->videoq);
2256 is->video_tid = SDL_CreateThread(video_thread, is);
2258 case AVMEDIA_TYPE_SUBTITLE:
2259 is->subtitle_stream = stream_index;
2260 is->subtitle_st = ic->streams[stream_index];
2261 packet_queue_init(&is->subtitleq);
2263 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2271 static void stream_component_close(VideoState *is, int stream_index)
2273 AVFormatContext *ic = is->ic;
2274 AVCodecContext *avctx;
2276 if (stream_index < 0 || stream_index >= ic->nb_streams)
2278 avctx = ic->streams[stream_index]->codec;
2280 switch(avctx->codec_type) {
2281 case AVMEDIA_TYPE_AUDIO:
2282 packet_queue_abort(&is->audioq);
2286 packet_queue_end(&is->audioq);
2287 if (is->reformat_ctx)
2288 av_audio_convert_free(is->reformat_ctx);
2289 is->reformat_ctx = NULL;
2291 case AVMEDIA_TYPE_VIDEO:
2292 packet_queue_abort(&is->videoq);
2294 /* note: we also signal this mutex to make sure we deblock the
2295 video thread in all cases */
2296 SDL_LockMutex(is->pictq_mutex);
2297 SDL_CondSignal(is->pictq_cond);
2298 SDL_UnlockMutex(is->pictq_mutex);
2300 SDL_WaitThread(is->video_tid, NULL);
2302 packet_queue_end(&is->videoq);
2304 case AVMEDIA_TYPE_SUBTITLE:
2305 packet_queue_abort(&is->subtitleq);
2307 /* note: we also signal this mutex to make sure we deblock the
2308 video thread in all cases */
2309 SDL_LockMutex(is->subpq_mutex);
2310 is->subtitle_stream_changed = 1;
2312 SDL_CondSignal(is->subpq_cond);
2313 SDL_UnlockMutex(is->subpq_mutex);
2315 SDL_WaitThread(is->subtitle_tid, NULL);
2317 packet_queue_end(&is->subtitleq);
2323 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2324 avcodec_close(avctx);
2325 switch(avctx->codec_type) {
2326 case AVMEDIA_TYPE_AUDIO:
2327 is->audio_st = NULL;
2328 is->audio_stream = -1;
2330 case AVMEDIA_TYPE_VIDEO:
2331 is->video_st = NULL;
2332 is->video_stream = -1;
2334 case AVMEDIA_TYPE_SUBTITLE:
2335 is->subtitle_st = NULL;
2336 is->subtitle_stream = -1;
2343 /* since we have only one decoding thread, we can use a global
2344 variable instead of a thread local variable */
2345 static VideoState *global_video_state;
2347 static int decode_interrupt_cb(void)
2349 return (global_video_state && global_video_state->abort_request);
2352 /* this thread gets the stream from the disk or the network */
2353 static int decode_thread(void *arg)
2355 VideoState *is = arg;
2356 AVFormatContext *ic;
2358 int st_index[AVMEDIA_TYPE_NB];
2359 int st_count[AVMEDIA_TYPE_NB]={0};
2360 int st_best_packet_count[AVMEDIA_TYPE_NB];
2361 AVPacket pkt1, *pkt = &pkt1;
2362 AVFormatParameters params, *ap = ¶ms;
2364 int pkt_in_play_range = 0;
2366 ic = avformat_alloc_context();
2368 memset(st_index, -1, sizeof(st_index));
2369 memset(st_best_packet_count, -1, sizeof(st_best_packet_count));
2370 is->video_stream = -1;
2371 is->audio_stream = -1;
2372 is->subtitle_stream = -1;
2374 global_video_state = is;
2375 url_set_interrupt_cb(decode_interrupt_cb);
2377 memset(ap, 0, sizeof(*ap));
2379 ap->prealloced_context = 1;
2380 ap->width = frame_width;
2381 ap->height= frame_height;
2382 ap->time_base= (AVRational){1, 25};
2383 ap->pix_fmt = frame_pix_fmt;
2385 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2387 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2389 print_error(is->filename, err);
2396 ic->flags |= AVFMT_FLAG_GENPTS;
2398 err = av_find_stream_info(ic);
2400 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2405 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2408 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2410 /* if seeking requested, we execute it */
2411 if (start_time != AV_NOPTS_VALUE) {
2414 timestamp = start_time;
2415 /* add the stream start time */
2416 if (ic->start_time != AV_NOPTS_VALUE)
2417 timestamp += ic->start_time;
2418 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2420 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2421 is->filename, (double)timestamp / AV_TIME_BASE);
2425 for(i = 0; i < ic->nb_streams; i++) {
2426 AVStream *st= ic->streams[i];
2427 AVCodecContext *avctx = st->codec;
2428 ic->streams[i]->discard = AVDISCARD_ALL;
2429 if(avctx->codec_type >= (unsigned)AVMEDIA_TYPE_NB)
2431 if(st_count[avctx->codec_type]++ != wanted_stream[avctx->codec_type] && wanted_stream[avctx->codec_type] >= 0)
2434 if(st_best_packet_count[avctx->codec_type] >= st->codec_info_nb_frames)
2436 st_best_packet_count[avctx->codec_type]= st->codec_info_nb_frames;
2438 switch(avctx->codec_type) {
2439 case AVMEDIA_TYPE_AUDIO:
2441 st_index[AVMEDIA_TYPE_AUDIO] = i;
2443 case AVMEDIA_TYPE_VIDEO:
2444 case AVMEDIA_TYPE_SUBTITLE:
2446 st_index[avctx->codec_type] = i;
2453 dump_format(ic, 0, is->filename, 0);
2456 /* open the streams */
2457 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2458 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2462 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2463 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2465 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2467 if (!display_disable)
2471 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2472 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2475 if (is->video_stream < 0 && is->audio_stream < 0) {
2476 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2482 if (is->abort_request)
2484 if (is->paused != is->last_paused) {
2485 is->last_paused = is->paused;
2487 is->read_pause_return= av_read_pause(ic);
2491 #if CONFIG_RTSP_DEMUXER
2492 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2493 /* wait 10 ms to avoid trying to get another packet */
2500 int64_t seek_target= is->seek_pos;
2501 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2502 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2503 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2504 // of the seek_pos/seek_rel variables
2506 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2508 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2510 if (is->audio_stream >= 0) {
2511 packet_queue_flush(&is->audioq);
2512 packet_queue_put(&is->audioq, &flush_pkt);
2514 if (is->subtitle_stream >= 0) {
2515 packet_queue_flush(&is->subtitleq);
2516 packet_queue_put(&is->subtitleq, &flush_pkt);
2518 if (is->video_stream >= 0) {
2519 packet_queue_flush(&is->videoq);
2520 packet_queue_put(&is->videoq, &flush_pkt);
2527 /* if the queue are full, no need to read more */
2528 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2529 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2530 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2531 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2536 if(url_feof(ic->pb) || eof) {
2537 if(is->video_stream >= 0){
2538 av_init_packet(pkt);
2541 pkt->stream_index= is->video_stream;
2542 packet_queue_put(&is->videoq, pkt);
2545 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2546 if(loop!=1 && (!loop || --loop)){
2547 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2555 ret = av_read_frame(ic, pkt);
2557 if (ret == AVERROR_EOF)
2559 if (url_ferror(ic->pb))
2561 SDL_Delay(100); /* wait for user event */
2564 /* check if packet is in play range specified by user, then queue, otherwise discard */
2565 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2566 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2567 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2568 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2569 <= ((double)duration/1000000);
2570 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2571 packet_queue_put(&is->audioq, pkt);
2572 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2573 packet_queue_put(&is->videoq, pkt);
2574 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2575 packet_queue_put(&is->subtitleq, pkt);
2577 av_free_packet(pkt);
2580 /* wait until the end */
2581 while (!is->abort_request) {
2587 /* disable interrupting */
2588 global_video_state = NULL;
2590 /* close each stream */
2591 if (is->audio_stream >= 0)
2592 stream_component_close(is, is->audio_stream);
2593 if (is->video_stream >= 0)
2594 stream_component_close(is, is->video_stream);
2595 if (is->subtitle_stream >= 0)
2596 stream_component_close(is, is->subtitle_stream);
2598 av_close_input_file(is->ic);
2599 is->ic = NULL; /* safety */
2601 url_set_interrupt_cb(NULL);
2606 event.type = FF_QUIT_EVENT;
2607 event.user.data1 = is;
2608 SDL_PushEvent(&event);
2613 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2617 is = av_mallocz(sizeof(VideoState));
2620 av_strlcpy(is->filename, filename, sizeof(is->filename));
2621 is->iformat = iformat;
2625 /* start video display */
2626 is->pictq_mutex = SDL_CreateMutex();
2627 is->pictq_cond = SDL_CreateCond();
2629 is->subpq_mutex = SDL_CreateMutex();
2630 is->subpq_cond = SDL_CreateCond();
2632 is->av_sync_type = av_sync_type;
2633 is->parse_tid = SDL_CreateThread(decode_thread, is);
2634 if (!is->parse_tid) {
2641 static void stream_close(VideoState *is)
2645 /* XXX: use a special url_shutdown call to abort parse cleanly */
2646 is->abort_request = 1;
2647 SDL_WaitThread(is->parse_tid, NULL);
2648 SDL_WaitThread(is->refresh_tid, NULL);
2650 /* free all pictures */
2651 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2655 avfilter_unref_pic(vp->picref);
2660 SDL_FreeYUVOverlay(vp->bmp);
2664 SDL_DestroyMutex(is->pictq_mutex);
2665 SDL_DestroyCond(is->pictq_cond);
2666 SDL_DestroyMutex(is->subpq_mutex);
2667 SDL_DestroyCond(is->subpq_cond);
2668 #if !CONFIG_AVFILTER
2669 if (is->img_convert_ctx)
2670 sws_freeContext(is->img_convert_ctx);
2675 static void stream_cycle_channel(VideoState *is, int codec_type)
2677 AVFormatContext *ic = is->ic;
2678 int start_index, stream_index;
2681 if (codec_type == AVMEDIA_TYPE_VIDEO)
2682 start_index = is->video_stream;
2683 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2684 start_index = is->audio_stream;
2686 start_index = is->subtitle_stream;
2687 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2689 stream_index = start_index;
2691 if (++stream_index >= is->ic->nb_streams)
2693 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2700 if (stream_index == start_index)
2702 st = ic->streams[stream_index];
2703 if (st->codec->codec_type == codec_type) {
2704 /* check that parameters are OK */
2705 switch(codec_type) {
2706 case AVMEDIA_TYPE_AUDIO:
2707 if (st->codec->sample_rate != 0 &&
2708 st->codec->channels != 0)
2711 case AVMEDIA_TYPE_VIDEO:
2712 case AVMEDIA_TYPE_SUBTITLE:
2720 stream_component_close(is, start_index);
2721 stream_component_open(is, stream_index);
2725 static void toggle_full_screen(void)
2727 is_full_screen = !is_full_screen;
2728 if (!fs_screen_width) {
2729 /* use default SDL method */
2730 // SDL_WM_ToggleFullScreen(screen);
2732 video_open(cur_stream);
2735 static void toggle_pause(void)
2738 stream_pause(cur_stream);
2742 static void step_to_next_frame(void)
2745 /* if the stream is paused unpause it, then step */
2746 if (cur_stream->paused)
2747 stream_pause(cur_stream);
2752 static void do_exit(void)
2756 stream_close(cur_stream);
2759 for (i = 0; i < AVMEDIA_TYPE_NB; i++)
2760 av_free(avcodec_opts[i]);
2761 av_free(avformat_opts);
2772 static void toggle_audio_display(void)
2775 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2776 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2777 fill_rectangle(screen,
2778 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2780 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2784 /* handle an event sent by the GUI */
2785 static void event_loop(void)
2788 double incr, pos, frac;
2792 SDL_WaitEvent(&event);
2793 switch(event.type) {
2795 switch(event.key.keysym.sym) {
2801 toggle_full_screen();
2807 case SDLK_s: //S: Step to next frame
2808 step_to_next_frame();
2812 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2816 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2820 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2823 toggle_audio_display();
2838 if (seek_by_bytes) {
2839 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2840 pos= cur_stream->video_current_pos;
2841 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2842 pos= cur_stream->audio_pkt.pos;
2844 pos = url_ftell(cur_stream->ic->pb);
2845 if (cur_stream->ic->bit_rate)
2846 incr *= cur_stream->ic->bit_rate / 8.0;
2850 stream_seek(cur_stream, pos, incr, 1);
2852 pos = get_master_clock(cur_stream);
2854 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2862 case SDL_MOUSEBUTTONDOWN:
2863 case SDL_MOUSEMOTION:
2864 if(event.type ==SDL_MOUSEBUTTONDOWN){
2867 if(event.motion.state != SDL_PRESSED)
2872 if(seek_by_bytes || cur_stream->ic->duration<=0){
2873 uint64_t size= url_fsize(cur_stream->ic->pb);
2874 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2878 int tns, thh, tmm, tss;
2879 tns = cur_stream->ic->duration/1000000LL;
2881 tmm = (tns%3600)/60;
2883 frac = x/cur_stream->width;
2888 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2889 hh, mm, ss, thh, tmm, tss);
2890 ts = frac*cur_stream->ic->duration;
2891 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2892 ts += cur_stream->ic->start_time;
2893 stream_seek(cur_stream, ts, 0, 0);
2897 case SDL_VIDEORESIZE:
2899 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2900 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2901 screen_width = cur_stream->width = event.resize.w;
2902 screen_height= cur_stream->height= event.resize.h;
2909 case FF_ALLOC_EVENT:
2910 video_open(event.user.data1);
2911 alloc_picture(event.user.data1);
2913 case FF_REFRESH_EVENT:
2914 video_refresh_timer(event.user.data1);
2915 cur_stream->refresh=0;
2923 static void opt_frame_size(const char *arg)
2925 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2926 fprintf(stderr, "Incorrect frame size\n");
2929 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2930 fprintf(stderr, "Frame size must be a multiple of 2\n");
2935 static int opt_width(const char *opt, const char *arg)
2937 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2941 static int opt_height(const char *opt, const char *arg)
2943 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2947 static void opt_format(const char *arg)
2949 file_iformat = av_find_input_format(arg);
2950 if (!file_iformat) {
2951 fprintf(stderr, "Unknown input format: %s\n", arg);
2956 static void opt_frame_pix_fmt(const char *arg)
2958 frame_pix_fmt = av_get_pix_fmt(arg);
2961 static int opt_sync(const char *opt, const char *arg)
2963 if (!strcmp(arg, "audio"))
2964 av_sync_type = AV_SYNC_AUDIO_MASTER;
2965 else if (!strcmp(arg, "video"))
2966 av_sync_type = AV_SYNC_VIDEO_MASTER;
2967 else if (!strcmp(arg, "ext"))
2968 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2970 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2976 static int opt_seek(const char *opt, const char *arg)
2978 start_time = parse_time_or_die(opt, arg, 1);
2982 static int opt_duration(const char *opt, const char *arg)
2984 duration = parse_time_or_die(opt, arg, 1);
2988 static int opt_debug(const char *opt, const char *arg)
2990 av_log_set_level(99);
2991 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2995 static int opt_vismv(const char *opt, const char *arg)
2997 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
3001 static int opt_thread_count(const char *opt, const char *arg)
3003 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3005 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3010 static const OptionDef options[] = {
3011 #include "cmdutils_common_opts.h"
3012 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3013 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3014 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3015 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3016 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3017 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3018 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3019 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3020 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3021 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3022 { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
3023 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3024 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3025 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3026 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3027 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3028 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3029 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3030 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3031 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3032 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3033 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3034 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3035 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3036 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3037 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3038 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
3039 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
3040 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
3041 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3042 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3043 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3044 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3045 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3046 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3048 { "vfilters", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3050 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3051 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3055 static void show_usage(void)
3057 printf("Simple media player\n");
3058 printf("usage: ffplay [options] input_file\n");
3062 static void show_help(void)
3065 show_help_options(options, "Main options:\n",
3067 show_help_options(options, "\nAdvanced options:\n",
3068 OPT_EXPERT, OPT_EXPERT);
3069 printf("\nWhile playing:\n"
3071 "f toggle full screen\n"
3073 "a cycle audio channel\n"
3074 "v cycle video channel\n"
3075 "t cycle subtitle channel\n"
3076 "w show audio waves\n"
3077 "s activate frame-step mode\n"
3078 "left/right seek backward/forward 10 seconds\n"
3079 "down/up seek backward/forward 1 minute\n"
3080 "mouse click seek to percentage in file corresponding to fraction of width\n"
3084 static void opt_input_file(const char *filename)
3086 if (input_filename) {
3087 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3088 filename, input_filename);
3091 if (!strcmp(filename, "-"))
3093 input_filename = filename;
3096 /* Called from the main */
3097 int main(int argc, char **argv)
3101 /* register all codecs, demux and protocols */
3102 avcodec_register_all();
3103 avdevice_register_all();
3105 avfilter_register_all();
3109 for(i=0; i<AVMEDIA_TYPE_NB; i++){
3110 avcodec_opts[i]= avcodec_alloc_context2(i);
3112 avformat_opts = avformat_alloc_context();
3113 #if !CONFIG_AVFILTER
3114 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
3119 parse_options(argc, argv, options, opt_input_file);
3121 if (!input_filename) {
3123 fprintf(stderr, "An input file must be specified\n");
3124 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3128 if (display_disable) {
3131 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3132 #if !defined(__MINGW32__) && !defined(__APPLE__)
3133 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3135 if (SDL_Init (flags)) {
3136 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3140 if (!display_disable) {
3141 #if HAVE_SDL_VIDEO_SIZE
3142 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3143 fs_screen_width = vi->current_w;
3144 fs_screen_height = vi->current_h;
3148 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3149 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3150 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3152 av_init_packet(&flush_pkt);
3153 flush_pkt.data= "FLUSH";
3155 cur_stream = stream_open(input_filename, file_iformat);