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
22 #define _XOPEN_SOURCE 600
28 #include "libavutil/avstring.h"
29 #include "libavutil/colorspace.h"
30 #include "libavutil/pixdesc.h"
31 #include "libavcore/imgutils.h"
32 #include "libavcore/parseutils.h"
33 #include "libavcore/samplefmt.h"
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/audioconvert.h"
38 #include "libavcodec/opt.h"
39 #include "libavcodec/avfft.h"
42 # include "libavfilter/avfilter.h"
43 # include "libavfilter/avfiltergraph.h"
49 #include <SDL_thread.h>
52 #undef main /* We don't want SDL to override our main() */
58 const char program_name[] = "FFplay";
59 const int program_birth_year = 2003;
63 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
64 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
67 /* SDL audio buffer size, in samples. Should be small to have precise
68 A/V sync as SDL does not have hardware buffer fullness info. */
69 #define SDL_AUDIO_BUFFER_SIZE 1024
71 /* no AV sync correction is done if below the AV sync threshold */
72 #define AV_SYNC_THRESHOLD 0.01
73 /* no AV correction is done if too big error */
74 #define AV_NOSYNC_THRESHOLD 10.0
76 #define FRAME_SKIP_FACTOR 0.05
78 /* maximum audio speed change to get correct sync */
79 #define SAMPLE_CORRECTION_PERCENT_MAX 10
81 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
82 #define AUDIO_DIFF_AVG_NB 20
84 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
85 #define SAMPLE_ARRAY_SIZE (2*65536)
87 static int sws_flags = SWS_BICUBIC;
89 typedef struct PacketQueue {
90 AVPacketList *first_pkt, *last_pkt;
98 #define VIDEO_PICTURE_QUEUE_SIZE 2
99 #define SUBPICTURE_QUEUE_SIZE 4
101 typedef struct VideoPicture {
102 double pts; ///<presentation time stamp for this picture
103 double target_clock; ///<av_gettime() time at which this should be displayed ideally
104 int64_t pos; ///<byte position in file
106 int width, height; /* source height & width */
108 enum PixelFormat pix_fmt;
111 AVFilterBufferRef *picref;
115 typedef struct SubPicture {
116 double pts; /* presentation time stamp for this picture */
121 AV_SYNC_AUDIO_MASTER, /* default choice */
122 AV_SYNC_VIDEO_MASTER,
123 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
126 typedef struct VideoState {
127 SDL_Thread *parse_tid;
128 SDL_Thread *video_tid;
129 SDL_Thread *refresh_tid;
130 AVInputFormat *iformat;
139 int read_pause_return;
141 int dtg_active_format;
146 double external_clock; /* external clock base */
147 int64_t external_clock_time;
150 double audio_diff_cum; /* used for AV difference average computation */
151 double audio_diff_avg_coef;
152 double audio_diff_threshold;
153 int audio_diff_avg_count;
156 int audio_hw_buf_size;
157 /* samples output by the codec. we reserve more space for avsync
159 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
160 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
162 unsigned int audio_buf_size; /* in bytes */
163 int audio_buf_index; /* in bytes */
164 AVPacket audio_pkt_temp;
166 enum AVSampleFormat audio_src_fmt;
167 AVAudioConvert *reformat_ctx;
169 int show_audio; /* if true, display audio samples */
170 int16_t sample_array[SAMPLE_ARRAY_SIZE];
171 int sample_array_index;
175 FFTSample *rdft_data;
178 SDL_Thread *subtitle_tid;
180 int subtitle_stream_changed;
181 AVStream *subtitle_st;
182 PacketQueue subtitleq;
183 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
184 int subpq_size, subpq_rindex, subpq_windex;
185 SDL_mutex *subpq_mutex;
186 SDL_cond *subpq_cond;
189 double frame_last_pts;
190 double frame_last_delay;
191 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
195 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
196 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
197 int64_t video_current_pos; ///<current displayed file pos
198 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
199 int pictq_size, pictq_rindex, pictq_windex;
200 SDL_mutex *pictq_mutex;
201 SDL_cond *pictq_cond;
203 struct SwsContext *img_convert_ctx;
206 // QETimer *video_timer;
208 int width, height, xleft, ytop;
210 PtsCorrectionContext pts_ctx;
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;
264 static int exit_on_keydown;
265 static int exit_on_mousedown;
267 static int framedrop=1;
269 static int rdftspeed=20;
271 static char *vfilters = NULL;
274 /* current context */
275 static int is_full_screen;
276 static VideoState *cur_stream;
277 static int64_t audio_callback_time;
279 static AVPacket flush_pkt;
281 #define FF_ALLOC_EVENT (SDL_USEREVENT)
282 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
283 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
285 static SDL_Surface *screen;
287 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
289 /* packet queue handling */
290 static void packet_queue_init(PacketQueue *q)
292 memset(q, 0, sizeof(PacketQueue));
293 q->mutex = SDL_CreateMutex();
294 q->cond = SDL_CreateCond();
295 packet_queue_put(q, &flush_pkt);
298 static void packet_queue_flush(PacketQueue *q)
300 AVPacketList *pkt, *pkt1;
302 SDL_LockMutex(q->mutex);
303 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
305 av_free_packet(&pkt->pkt);
312 SDL_UnlockMutex(q->mutex);
315 static void packet_queue_end(PacketQueue *q)
317 packet_queue_flush(q);
318 SDL_DestroyMutex(q->mutex);
319 SDL_DestroyCond(q->cond);
322 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
326 /* duplicate the packet */
327 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
330 pkt1 = av_malloc(sizeof(AVPacketList));
337 SDL_LockMutex(q->mutex);
343 q->last_pkt->next = pkt1;
346 q->size += pkt1->pkt.size + sizeof(*pkt1);
347 /* XXX: should duplicate packet data in DV case */
348 SDL_CondSignal(q->cond);
350 SDL_UnlockMutex(q->mutex);
354 static void packet_queue_abort(PacketQueue *q)
356 SDL_LockMutex(q->mutex);
358 q->abort_request = 1;
360 SDL_CondSignal(q->cond);
362 SDL_UnlockMutex(q->mutex);
365 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
366 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
371 SDL_LockMutex(q->mutex);
374 if (q->abort_request) {
381 q->first_pkt = pkt1->next;
385 q->size -= pkt1->pkt.size + sizeof(*pkt1);
394 SDL_CondWait(q->cond, q->mutex);
397 SDL_UnlockMutex(q->mutex);
401 static inline void fill_rectangle(SDL_Surface *screen,
402 int x, int y, int w, int h, int color)
409 SDL_FillRect(screen, &rect, color);
413 /* draw only the border of a rectangle */
414 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
418 /* fill the background */
422 w2 = s->width - (x + w);
428 h2 = s->height - (y + h);
431 fill_rectangle(screen,
435 fill_rectangle(screen,
436 s->xleft + s->width - w2, s->ytop,
439 fill_rectangle(screen,
440 s->xleft + w1, s->ytop,
441 s->width - w1 - w2, h1,
443 fill_rectangle(screen,
444 s->xleft + w1, s->ytop + s->height - h2,
445 s->width - w1 - w2, h2,
450 #define ALPHA_BLEND(a, oldp, newp, s)\
451 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
453 #define RGBA_IN(r, g, b, a, s)\
455 unsigned int v = ((const uint32_t *)(s))[0];\
456 a = (v >> 24) & 0xff;\
457 r = (v >> 16) & 0xff;\
458 g = (v >> 8) & 0xff;\
462 #define YUVA_IN(y, u, v, a, s, pal)\
464 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
465 a = (val >> 24) & 0xff;\
466 y = (val >> 16) & 0xff;\
467 u = (val >> 8) & 0xff;\
471 #define YUVA_OUT(d, y, u, v, a)\
473 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
479 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
481 int wrap, wrap3, width2, skip2;
482 int y, u, v, a, u1, v1, a1, w, h;
483 uint8_t *lum, *cb, *cr;
486 int dstx, dsty, dstw, dsth;
488 dstw = av_clip(rect->w, 0, imgw);
489 dsth = av_clip(rect->h, 0, imgh);
490 dstx = av_clip(rect->x, 0, imgw - dstw);
491 dsty = av_clip(rect->y, 0, imgh - dsth);
492 lum = dst->data[0] + dsty * dst->linesize[0];
493 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
494 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
496 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
498 wrap = dst->linesize[0];
499 wrap3 = rect->pict.linesize[0];
500 p = rect->pict.data[0];
501 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
509 YUVA_IN(y, u, v, a, p, pal);
510 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
511 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
512 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
518 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
519 YUVA_IN(y, u, v, a, p, pal);
523 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
525 YUVA_IN(y, u, v, a, p + BPP, pal);
529 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
530 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
531 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
538 YUVA_IN(y, u, v, a, p, pal);
539 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
540 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
541 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
545 p += wrap3 - dstw * BPP;
546 lum += wrap - dstw - dstx;
547 cb += dst->linesize[1] - width2 - skip2;
548 cr += dst->linesize[2] - width2 - skip2;
550 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
556 YUVA_IN(y, u, v, a, p, pal);
560 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
563 YUVA_IN(y, u, v, a, p, pal);
567 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
568 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
569 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
575 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
576 YUVA_IN(y, u, v, a, p, pal);
580 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
582 YUVA_IN(y, u, v, a, p + BPP, pal);
586 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
590 YUVA_IN(y, u, v, a, p, pal);
594 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
596 YUVA_IN(y, u, v, a, p + BPP, pal);
600 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
602 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
603 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
607 p += -wrap3 + 2 * BPP;
611 YUVA_IN(y, u, v, a, p, pal);
615 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
618 YUVA_IN(y, u, v, a, p, pal);
622 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
623 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
624 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
630 p += wrap3 + (wrap3 - dstw * BPP);
631 lum += wrap + (wrap - dstw - dstx);
632 cb += dst->linesize[1] - width2 - skip2;
633 cr += dst->linesize[2] - width2 - skip2;
635 /* handle odd height */
642 YUVA_IN(y, u, v, a, p, pal);
643 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
644 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
645 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
651 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
652 YUVA_IN(y, u, v, a, p, pal);
656 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
658 YUVA_IN(y, u, v, a, p + BPP, pal);
662 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
663 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
664 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
671 YUVA_IN(y, u, v, a, p, pal);
672 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
673 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
674 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
679 static void free_subpicture(SubPicture *sp)
681 avsubtitle_free(&sp->sub);
684 static void video_image_display(VideoState *is)
690 int width, height, x, y;
694 vp = &is->pictq[is->pictq_rindex];
697 if (vp->picref->video->pixel_aspect.num == 0)
700 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
703 /* XXX: use variable in the frame */
704 if (is->video_st->sample_aspect_ratio.num)
705 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
706 else if (is->video_st->codec->sample_aspect_ratio.num)
707 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
711 if (aspect_ratio <= 0.0)
713 aspect_ratio *= (float)vp->width / (float)vp->height;
714 /* if an active format is indicated, then it overrides the
717 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
718 is->dtg_active_format = is->video_st->codec->dtg_active_format;
719 printf("dtg_active_format=%d\n", is->dtg_active_format);
723 switch(is->video_st->codec->dtg_active_format) {
724 case FF_DTG_AFD_SAME:
729 aspect_ratio = 4.0 / 3.0;
731 case FF_DTG_AFD_16_9:
732 aspect_ratio = 16.0 / 9.0;
734 case FF_DTG_AFD_14_9:
735 aspect_ratio = 14.0 / 9.0;
737 case FF_DTG_AFD_4_3_SP_14_9:
738 aspect_ratio = 14.0 / 9.0;
740 case FF_DTG_AFD_16_9_SP_14_9:
741 aspect_ratio = 14.0 / 9.0;
743 case FF_DTG_AFD_SP_4_3:
744 aspect_ratio = 4.0 / 3.0;
751 if (is->subpq_size > 0)
753 sp = &is->subpq[is->subpq_rindex];
755 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
757 SDL_LockYUVOverlay (vp->bmp);
759 pict.data[0] = vp->bmp->pixels[0];
760 pict.data[1] = vp->bmp->pixels[2];
761 pict.data[2] = vp->bmp->pixels[1];
763 pict.linesize[0] = vp->bmp->pitches[0];
764 pict.linesize[1] = vp->bmp->pitches[2];
765 pict.linesize[2] = vp->bmp->pitches[1];
767 for (i = 0; i < sp->sub.num_rects; i++)
768 blend_subrect(&pict, sp->sub.rects[i],
769 vp->bmp->w, vp->bmp->h);
771 SDL_UnlockYUVOverlay (vp->bmp);
777 /* XXX: we suppose the screen has a 1.0 pixel ratio */
779 width = ((int)rint(height * aspect_ratio)) & ~1;
780 if (width > is->width) {
782 height = ((int)rint(width / aspect_ratio)) & ~1;
784 x = (is->width - width) / 2;
785 y = (is->height - height) / 2;
786 if (!is->no_background) {
787 /* fill the background */
788 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
790 is->no_background = 0;
792 rect.x = is->xleft + x;
793 rect.y = is->ytop + y;
796 SDL_DisplayYUVOverlay(vp->bmp, &rect);
799 fill_rectangle(screen,
800 is->xleft, is->ytop, is->width, is->height,
801 QERGB(0x00, 0x00, 0x00));
806 static inline int compute_mod(int a, int b)
815 static void video_audio_display(VideoState *s)
817 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
818 int ch, channels, h, h2, bgcolor, fgcolor;
820 int rdft_bits, nb_freq;
822 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
824 nb_freq= 1<<(rdft_bits-1);
826 /* compute display index : center on currently output samples */
827 channels = s->audio_st->codec->channels;
828 nb_display_channels = channels;
830 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
832 delay = audio_write_get_buf_size(s);
835 /* to be more precise, we take into account the time spent since
836 the last buffer computation */
837 if (audio_callback_time) {
838 time_diff = av_gettime() - audio_callback_time;
839 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
842 delay += 2*data_used;
843 if (delay < data_used)
846 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
847 if(s->show_audio==1){
849 for(i=0; i<1000; i+=channels){
850 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
851 int a= s->sample_array[idx];
852 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
853 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
854 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
856 if(h<score && (b^c)<0){
863 s->last_i_start = i_start;
865 i_start = s->last_i_start;
868 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
869 if(s->show_audio==1){
870 fill_rectangle(screen,
871 s->xleft, s->ytop, s->width, s->height,
874 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
876 /* total height for one channel */
877 h = s->height / nb_display_channels;
878 /* graph height / 2 */
880 for(ch = 0;ch < nb_display_channels; ch++) {
882 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
883 for(x = 0; x < s->width; x++) {
884 y = (s->sample_array[i] * h2) >> 15;
891 fill_rectangle(screen,
892 s->xleft + x, ys, 1, y,
895 if (i >= SAMPLE_ARRAY_SIZE)
896 i -= SAMPLE_ARRAY_SIZE;
900 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
902 for(ch = 1;ch < nb_display_channels; ch++) {
903 y = s->ytop + ch * h;
904 fill_rectangle(screen,
905 s->xleft, y, s->width, 1,
908 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
910 nb_display_channels= FFMIN(nb_display_channels, 2);
911 if(rdft_bits != s->rdft_bits){
912 av_rdft_end(s->rdft);
913 av_free(s->rdft_data);
914 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
915 s->rdft_bits= rdft_bits;
916 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
920 for(ch = 0;ch < nb_display_channels; ch++) {
921 data[ch] = s->rdft_data + 2*nb_freq*ch;
923 for(x = 0; x < 2*nb_freq; x++) {
924 double w= (x-nb_freq)*(1.0/nb_freq);
925 data[ch][x]= s->sample_array[i]*(1.0-w*w);
927 if (i >= SAMPLE_ARRAY_SIZE)
928 i -= SAMPLE_ARRAY_SIZE;
930 av_rdft_calc(s->rdft, data[ch]);
932 //least efficient way to do this, we should of course directly access it but its more than fast enough
933 for(y=0; y<s->height; y++){
934 double w= 1/sqrt(nb_freq);
935 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]));
936 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
937 + data[1][2*y+1]*data[1][2*y+1])) : a;
940 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
942 fill_rectangle(screen,
943 s->xpos, s->height-y, 1, 1,
947 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
949 if(s->xpos >= s->width)
954 static int video_open(VideoState *is){
955 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
958 if(is_full_screen) flags |= SDL_FULLSCREEN;
959 else flags |= SDL_RESIZABLE;
961 if (is_full_screen && fs_screen_width) {
963 h = fs_screen_height;
964 } else if(!is_full_screen && screen_width){
968 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
969 w = is->out_video_filter->inputs[0]->w;
970 h = is->out_video_filter->inputs[0]->h;
972 }else if (is->video_st && is->video_st->codec->width){
973 w = is->video_st->codec->width;
974 h = is->video_st->codec->height;
980 if(screen && is->width == screen->w && screen->w == w
981 && is->height== screen->h && screen->h == h)
985 screen = SDL_SetVideoMode(w, h, 0, flags);
987 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
988 screen = SDL_SetVideoMode(w, h, 24, flags);
991 fprintf(stderr, "SDL: could not set video mode - exiting\n");
995 window_title = input_filename;
996 SDL_WM_SetCaption(window_title, window_title);
998 is->width = screen->w;
999 is->height = screen->h;
1004 /* display the current picture, if any */
1005 static void video_display(VideoState *is)
1008 video_open(cur_stream);
1009 if (is->audio_st && is->show_audio)
1010 video_audio_display(is);
1011 else if (is->video_st)
1012 video_image_display(is);
1015 static int refresh_thread(void *opaque)
1017 VideoState *is= opaque;
1018 while(!is->abort_request){
1020 event.type = FF_REFRESH_EVENT;
1021 event.user.data1 = opaque;
1024 SDL_PushEvent(&event);
1026 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
1031 /* get the current audio clock value */
1032 static double get_audio_clock(VideoState *is)
1035 int hw_buf_size, bytes_per_sec;
1036 pts = is->audio_clock;
1037 hw_buf_size = audio_write_get_buf_size(is);
1040 bytes_per_sec = is->audio_st->codec->sample_rate *
1041 2 * is->audio_st->codec->channels;
1044 pts -= (double)hw_buf_size / bytes_per_sec;
1048 /* get the current video clock value */
1049 static double get_video_clock(VideoState *is)
1052 return is->video_current_pts;
1054 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1058 /* get the current external clock value */
1059 static double get_external_clock(VideoState *is)
1063 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1066 /* get the current master clock value */
1067 static double get_master_clock(VideoState *is)
1071 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1073 val = get_video_clock(is);
1075 val = get_audio_clock(is);
1076 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1078 val = get_audio_clock(is);
1080 val = get_video_clock(is);
1082 val = get_external_clock(is);
1087 /* seek in the stream */
1088 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1090 if (!is->seek_req) {
1093 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1095 is->seek_flags |= AVSEEK_FLAG_BYTE;
1100 /* pause or resume the video */
1101 static void stream_pause(VideoState *is)
1104 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1105 if(is->read_pause_return != AVERROR(ENOSYS)){
1106 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1108 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1110 is->paused = !is->paused;
1113 static double compute_target_time(double frame_current_pts, VideoState *is)
1115 double delay, sync_threshold, diff;
1117 /* compute nominal delay */
1118 delay = frame_current_pts - is->frame_last_pts;
1119 if (delay <= 0 || delay >= 10.0) {
1120 /* if incorrect delay, use previous one */
1121 delay = is->frame_last_delay;
1123 is->frame_last_delay = delay;
1125 is->frame_last_pts = frame_current_pts;
1127 /* update delay to follow master synchronisation source */
1128 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1129 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1130 /* if video is slave, we try to correct big delays by
1131 duplicating or deleting a frame */
1132 diff = get_video_clock(is) - get_master_clock(is);
1134 /* skip or repeat frame. We take into account the
1135 delay to compute the threshold. I still don't know
1136 if it is the best guess */
1137 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1138 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1139 if (diff <= -sync_threshold)
1141 else if (diff >= sync_threshold)
1145 is->frame_timer += delay;
1146 #if defined(DEBUG_SYNC)
1147 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1148 delay, actual_delay, frame_current_pts, -diff);
1151 return is->frame_timer;
1154 /* called to display each frame */
1155 static void video_refresh_timer(void *opaque)
1157 VideoState *is = opaque;
1160 SubPicture *sp, *sp2;
1164 if (is->pictq_size == 0) {
1165 //nothing to do, no picture to display in the que
1167 double time= av_gettime()/1000000.0;
1169 /* dequeue the picture */
1170 vp = &is->pictq[is->pictq_rindex];
1172 if(time < vp->target_clock)
1174 /* update current video pts */
1175 is->video_current_pts = vp->pts;
1176 is->video_current_pts_drift = is->video_current_pts - time;
1177 is->video_current_pos = vp->pos;
1178 if(is->pictq_size > 1){
1179 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1180 assert(nextvp->target_clock >= vp->target_clock);
1181 next_target= nextvp->target_clock;
1183 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1185 if(framedrop && time > next_target){
1186 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1187 if(is->pictq_size > 1 || time > next_target + 0.5){
1188 /* update queue size and signal for next picture */
1189 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1190 is->pictq_rindex = 0;
1192 SDL_LockMutex(is->pictq_mutex);
1194 SDL_CondSignal(is->pictq_cond);
1195 SDL_UnlockMutex(is->pictq_mutex);
1200 if(is->subtitle_st) {
1201 if (is->subtitle_stream_changed) {
1202 SDL_LockMutex(is->subpq_mutex);
1204 while (is->subpq_size) {
1205 free_subpicture(&is->subpq[is->subpq_rindex]);
1207 /* update queue size and signal for next picture */
1208 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1209 is->subpq_rindex = 0;
1213 is->subtitle_stream_changed = 0;
1215 SDL_CondSignal(is->subpq_cond);
1216 SDL_UnlockMutex(is->subpq_mutex);
1218 if (is->subpq_size > 0) {
1219 sp = &is->subpq[is->subpq_rindex];
1221 if (is->subpq_size > 1)
1222 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1226 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1227 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1229 free_subpicture(sp);
1231 /* update queue size and signal for next picture */
1232 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1233 is->subpq_rindex = 0;
1235 SDL_LockMutex(is->subpq_mutex);
1237 SDL_CondSignal(is->subpq_cond);
1238 SDL_UnlockMutex(is->subpq_mutex);
1244 /* display picture */
1245 if (!display_disable)
1248 /* update queue size and signal for next picture */
1249 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1250 is->pictq_rindex = 0;
1252 SDL_LockMutex(is->pictq_mutex);
1254 SDL_CondSignal(is->pictq_cond);
1255 SDL_UnlockMutex(is->pictq_mutex);
1257 } else if (is->audio_st) {
1258 /* draw the next audio frame */
1260 /* if only audio stream, then display the audio bars (better
1261 than nothing, just to test the implementation */
1263 /* display picture */
1264 if (!display_disable)
1268 static int64_t last_time;
1270 int aqsize, vqsize, sqsize;
1273 cur_time = av_gettime();
1274 if (!last_time || (cur_time - last_time) >= 30000) {
1279 aqsize = is->audioq.size;
1281 vqsize = is->videoq.size;
1282 if (is->subtitle_st)
1283 sqsize = is->subtitleq.size;
1285 if (is->audio_st && is->video_st)
1286 av_diff = get_audio_clock(is) - get_video_clock(is);
1287 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1288 get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1290 last_time = cur_time;
1295 static void stream_close(VideoState *is)
1299 /* XXX: use a special url_shutdown call to abort parse cleanly */
1300 is->abort_request = 1;
1301 SDL_WaitThread(is->parse_tid, NULL);
1302 SDL_WaitThread(is->refresh_tid, NULL);
1304 /* free all pictures */
1305 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1309 avfilter_unref_buffer(vp->picref);
1314 SDL_FreeYUVOverlay(vp->bmp);
1318 SDL_DestroyMutex(is->pictq_mutex);
1319 SDL_DestroyCond(is->pictq_cond);
1320 SDL_DestroyMutex(is->subpq_mutex);
1321 SDL_DestroyCond(is->subpq_cond);
1322 #if !CONFIG_AVFILTER
1323 if (is->img_convert_ctx)
1324 sws_freeContext(is->img_convert_ctx);
1329 static void do_exit(void)
1332 stream_close(cur_stream);
1342 av_log(NULL, AV_LOG_QUIET, "");
1346 /* allocate a picture (needs to do that in main thread to avoid
1347 potential locking problems */
1348 static void alloc_picture(void *opaque)
1350 VideoState *is = opaque;
1353 vp = &is->pictq[is->pictq_windex];
1356 SDL_FreeYUVOverlay(vp->bmp);
1360 avfilter_unref_buffer(vp->picref);
1363 vp->width = is->out_video_filter->inputs[0]->w;
1364 vp->height = is->out_video_filter->inputs[0]->h;
1365 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1367 vp->width = is->video_st->codec->width;
1368 vp->height = is->video_st->codec->height;
1369 vp->pix_fmt = is->video_st->codec->pix_fmt;
1372 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1375 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1376 /* SDL allocates a buffer smaller than requested if the video
1377 * overlay hardware is unable to support the requested size. */
1378 fprintf(stderr, "Error: the video system does not support an image\n"
1379 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1380 "to reduce the image size.\n", vp->width, vp->height );
1384 SDL_LockMutex(is->pictq_mutex);
1386 SDL_CondSignal(is->pictq_cond);
1387 SDL_UnlockMutex(is->pictq_mutex);
1392 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1394 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1401 /* wait until we have space to put a new picture */
1402 SDL_LockMutex(is->pictq_mutex);
1404 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1405 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1407 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1408 !is->videoq.abort_request) {
1409 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1411 SDL_UnlockMutex(is->pictq_mutex);
1413 if (is->videoq.abort_request)
1416 vp = &is->pictq[is->pictq_windex];
1418 /* alloc or resize hardware picture buffer */
1421 vp->width != is->out_video_filter->inputs[0]->w ||
1422 vp->height != is->out_video_filter->inputs[0]->h) {
1424 vp->width != is->video_st->codec->width ||
1425 vp->height != is->video_st->codec->height) {
1431 /* the allocation must be done in the main thread to avoid
1433 event.type = FF_ALLOC_EVENT;
1434 event.user.data1 = is;
1435 SDL_PushEvent(&event);
1437 /* wait until the picture is allocated */
1438 SDL_LockMutex(is->pictq_mutex);
1439 while (!vp->allocated && !is->videoq.abort_request) {
1440 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1442 SDL_UnlockMutex(is->pictq_mutex);
1444 if (is->videoq.abort_request)
1448 /* if the frame is not skipped, then display it */
1453 avfilter_unref_buffer(vp->picref);
1454 vp->picref = src_frame->opaque;
1457 /* get a pointer on the bitmap */
1458 SDL_LockYUVOverlay (vp->bmp);
1460 dst_pix_fmt = PIX_FMT_YUV420P;
1461 memset(&pict,0,sizeof(AVPicture));
1462 pict.data[0] = vp->bmp->pixels[0];
1463 pict.data[1] = vp->bmp->pixels[2];
1464 pict.data[2] = vp->bmp->pixels[1];
1466 pict.linesize[0] = vp->bmp->pitches[0];
1467 pict.linesize[1] = vp->bmp->pitches[2];
1468 pict.linesize[2] = vp->bmp->pitches[1];
1471 pict_src.data[0] = src_frame->data[0];
1472 pict_src.data[1] = src_frame->data[1];
1473 pict_src.data[2] = src_frame->data[2];
1475 pict_src.linesize[0] = src_frame->linesize[0];
1476 pict_src.linesize[1] = src_frame->linesize[1];
1477 pict_src.linesize[2] = src_frame->linesize[2];
1479 //FIXME use direct rendering
1480 av_picture_copy(&pict, &pict_src,
1481 vp->pix_fmt, vp->width, vp->height);
1483 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1484 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1485 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1486 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1487 if (is->img_convert_ctx == NULL) {
1488 fprintf(stderr, "Cannot initialize the conversion context\n");
1491 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1492 0, vp->height, pict.data, pict.linesize);
1494 /* update the bitmap content */
1495 SDL_UnlockYUVOverlay(vp->bmp);
1500 /* now we can update the picture count */
1501 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1502 is->pictq_windex = 0;
1503 SDL_LockMutex(is->pictq_mutex);
1504 vp->target_clock= compute_target_time(vp->pts, is);
1507 SDL_UnlockMutex(is->pictq_mutex);
1513 * compute the exact PTS for the picture if it is omitted in the stream
1514 * @param pts1 the dts of the pkt / pts of the frame
1516 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1518 double frame_delay, pts;
1523 /* update video clock with pts, if present */
1524 is->video_clock = pts;
1526 pts = is->video_clock;
1528 /* update video clock for next frame */
1529 frame_delay = av_q2d(is->video_st->codec->time_base);
1530 /* for MPEG2, the frame can be repeated, so we update the
1531 clock accordingly */
1532 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1533 is->video_clock += frame_delay;
1535 #if defined(DEBUG_SYNC) && 0
1536 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1537 av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1539 return queue_picture(is, src_frame, pts, pos);
1542 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1544 int len1, got_picture, i;
1546 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1549 if (pkt->data == flush_pkt.data) {
1550 avcodec_flush_buffers(is->video_st->codec);
1552 SDL_LockMutex(is->pictq_mutex);
1553 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1554 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1555 is->pictq[i].target_clock= 0;
1557 while (is->pictq_size && !is->videoq.abort_request) {
1558 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1560 is->video_current_pos = -1;
1561 SDL_UnlockMutex(is->pictq_mutex);
1563 init_pts_correction(&is->pts_ctx);
1564 is->frame_last_pts = AV_NOPTS_VALUE;
1565 is->frame_last_delay = 0;
1566 is->frame_timer = (double)av_gettime() / 1000000.0;
1567 is->skip_frames = 1;
1568 is->skip_frames_index = 0;
1572 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1573 this packet, if any */
1574 is->video_st->codec->reordered_opaque = pkt->pts;
1575 len1 = avcodec_decode_video2(is->video_st->codec,
1576 frame, &got_picture,
1580 if (decoder_reorder_pts == -1) {
1581 *pts = guess_correct_pts(&is->pts_ctx, frame->reordered_opaque, pkt->dts);
1582 } else if (decoder_reorder_pts) {
1583 *pts = frame->reordered_opaque;
1588 if (*pts == AV_NOPTS_VALUE) {
1592 is->skip_frames_index += 1;
1593 if(is->skip_frames_index >= is->skip_frames){
1594 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1609 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1611 AVFilterContext *ctx = codec->opaque;
1612 AVFilterBufferRef *ref;
1613 int perms = AV_PERM_WRITE;
1614 int i, w, h, stride[4];
1617 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1618 perms |= AV_PERM_NEG_LINESIZES;
1620 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1621 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1622 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1623 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1625 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1629 avcodec_align_dimensions2(codec, &w, &h, stride);
1630 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1634 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1637 ref->video->w = codec->width;
1638 ref->video->h = codec->height;
1639 for(i = 0; i < 4; i ++) {
1640 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1641 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1644 ref->data[i] += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1646 pic->data[i] = ref->data[i];
1647 pic->linesize[i] = ref->linesize[i];
1651 pic->type = FF_BUFFER_TYPE_USER;
1652 pic->reordered_opaque = codec->reordered_opaque;
1653 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1654 else pic->pkt_pts = AV_NOPTS_VALUE;
1658 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1660 memset(pic->data, 0, sizeof(pic->data));
1661 avfilter_unref_buffer(pic->opaque);
1664 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1666 AVFilterBufferRef *ref = pic->opaque;
1668 if (pic->data[0] == NULL) {
1669 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1670 return codec->get_buffer(codec, pic);
1673 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1674 (codec->pix_fmt != ref->format)) {
1675 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1679 pic->reordered_opaque = codec->reordered_opaque;
1680 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1681 else pic->pkt_pts = AV_NOPTS_VALUE;
1685 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1687 FilterPriv *priv = ctx->priv;
1688 AVCodecContext *codec;
1689 if(!opaque) return -1;
1692 codec = priv->is->video_st->codec;
1693 codec->opaque = ctx;
1694 if(codec->codec->capabilities & CODEC_CAP_DR1) {
1696 codec->get_buffer = input_get_buffer;
1697 codec->release_buffer = input_release_buffer;
1698 codec->reget_buffer = input_reget_buffer;
1701 priv->frame = avcodec_alloc_frame();
1706 static void input_uninit(AVFilterContext *ctx)
1708 FilterPriv *priv = ctx->priv;
1709 av_free(priv->frame);
1712 static int input_request_frame(AVFilterLink *link)
1714 FilterPriv *priv = link->src->priv;
1715 AVFilterBufferRef *picref;
1720 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1721 av_free_packet(&pkt);
1726 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1728 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1729 av_image_copy(picref->data, picref->linesize,
1730 priv->frame->data, priv->frame->linesize,
1731 picref->format, link->w, link->h);
1733 av_free_packet(&pkt);
1736 picref->pos = pkt.pos;
1737 picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1738 avfilter_start_frame(link, picref);
1739 avfilter_draw_slice(link, 0, link->h, 1);
1740 avfilter_end_frame(link);
1745 static int input_query_formats(AVFilterContext *ctx)
1747 FilterPriv *priv = ctx->priv;
1748 enum PixelFormat pix_fmts[] = {
1749 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1752 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1756 static int input_config_props(AVFilterLink *link)
1758 FilterPriv *priv = link->src->priv;
1759 AVCodecContext *c = priv->is->video_st->codec;
1762 link->h = c->height;
1763 link->time_base = priv->is->video_st->time_base;
1768 static AVFilter input_filter =
1770 .name = "ffplay_input",
1772 .priv_size = sizeof(FilterPriv),
1775 .uninit = input_uninit,
1777 .query_formats = input_query_formats,
1779 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1780 .outputs = (AVFilterPad[]) {{ .name = "default",
1781 .type = AVMEDIA_TYPE_VIDEO,
1782 .request_frame = input_request_frame,
1783 .config_props = input_config_props, },
1787 #endif /* CONFIG_AVFILTER */
1789 static int video_thread(void *arg)
1791 VideoState *is = arg;
1792 AVFrame *frame= avcodec_alloc_frame();
1799 char sws_flags_str[128];
1800 FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1801 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1802 AVFilterGraph *graph = avfilter_graph_alloc();
1803 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1804 graph->scale_sws_opts = av_strdup(sws_flags_str);
1806 if (avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1807 NULL, is, graph) < 0)
1809 if (avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1810 NULL, &ffsink_ctx, graph) < 0)
1814 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1815 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1817 outputs->name = av_strdup("in");
1818 outputs->filter_ctx = filt_src;
1819 outputs->pad_idx = 0;
1820 outputs->next = NULL;
1822 inputs->name = av_strdup("out");
1823 inputs->filter_ctx = filt_out;
1824 inputs->pad_idx = 0;
1825 inputs->next = NULL;
1827 if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1829 av_freep(&vfilters);
1831 if(avfilter_link(filt_src, 0, filt_out, 0) < 0) goto the_end;
1834 if (avfilter_graph_config(graph, NULL) < 0)
1837 is->out_video_filter = filt_out;
1841 #if !CONFIG_AVFILTER
1844 AVFilterBufferRef *picref;
1847 while (is->paused && !is->videoq.abort_request)
1850 ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1852 pts_int = picref->pts;
1854 frame->opaque = picref;
1857 if (av_cmp_q(tb, is->video_st->time_base)) {
1858 int64_t pts1 = pts_int;
1859 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1860 av_log(NULL, AV_LOG_DEBUG, "video_thread(): "
1861 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1862 tb.num, tb.den, pts1,
1863 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1866 ret = get_video_frame(is, frame, &pts_int, &pkt);
1869 if (ret < 0) goto the_end;
1874 pts = pts_int*av_q2d(is->video_st->time_base);
1877 ret = output_picture2(is, frame, pts, pos);
1879 ret = output_picture2(is, frame, pts, pkt.pos);
1880 av_free_packet(&pkt);
1887 stream_pause(cur_stream);
1891 avfilter_graph_free(graph);
1898 static int subtitle_thread(void *arg)
1900 VideoState *is = arg;
1902 AVPacket pkt1, *pkt = &pkt1;
1903 int len1, got_subtitle;
1906 int r, g, b, y, u, v, a;
1909 while (is->paused && !is->subtitleq.abort_request) {
1912 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1915 if(pkt->data == flush_pkt.data){
1916 avcodec_flush_buffers(is->subtitle_st->codec);
1919 SDL_LockMutex(is->subpq_mutex);
1920 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1921 !is->subtitleq.abort_request) {
1922 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1924 SDL_UnlockMutex(is->subpq_mutex);
1926 if (is->subtitleq.abort_request)
1929 sp = &is->subpq[is->subpq_windex];
1931 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1932 this packet, if any */
1934 if (pkt->pts != AV_NOPTS_VALUE)
1935 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1937 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1938 &sp->sub, &got_subtitle,
1942 if (got_subtitle && sp->sub.format == 0) {
1945 for (i = 0; i < sp->sub.num_rects; i++)
1947 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1949 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1950 y = RGB_TO_Y_CCIR(r, g, b);
1951 u = RGB_TO_U_CCIR(r, g, b, 0);
1952 v = RGB_TO_V_CCIR(r, g, b, 0);
1953 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1957 /* now we can update the picture count */
1958 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1959 is->subpq_windex = 0;
1960 SDL_LockMutex(is->subpq_mutex);
1962 SDL_UnlockMutex(is->subpq_mutex);
1964 av_free_packet(pkt);
1967 // stream_pause(cur_stream);
1973 /* copy samples for viewing in editor window */
1974 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1976 int size, len, channels;
1978 channels = is->audio_st->codec->channels;
1980 size = samples_size / sizeof(short);
1982 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1985 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1987 is->sample_array_index += len;
1988 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1989 is->sample_array_index = 0;
1994 /* return the new audio buffer size (samples can be added or deleted
1995 to get better sync if video or external master clock) */
1996 static int synchronize_audio(VideoState *is, short *samples,
1997 int samples_size1, double pts)
1999 int n, samples_size;
2002 n = 2 * is->audio_st->codec->channels;
2003 samples_size = samples_size1;
2005 /* if not master, then we try to remove or add samples to correct the clock */
2006 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2007 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2008 double diff, avg_diff;
2009 int wanted_size, min_size, max_size, nb_samples;
2011 ref_clock = get_master_clock(is);
2012 diff = get_audio_clock(is) - ref_clock;
2014 if (diff < AV_NOSYNC_THRESHOLD) {
2015 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2016 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2017 /* not enough measures to have a correct estimate */
2018 is->audio_diff_avg_count++;
2020 /* estimate the A-V difference */
2021 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2023 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2024 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2025 nb_samples = samples_size / n;
2027 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2028 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2029 if (wanted_size < min_size)
2030 wanted_size = min_size;
2031 else if (wanted_size > max_size)
2032 wanted_size = max_size;
2034 /* add or remove samples to correction the synchro */
2035 if (wanted_size < samples_size) {
2036 /* remove samples */
2037 samples_size = wanted_size;
2038 } else if (wanted_size > samples_size) {
2039 uint8_t *samples_end, *q;
2043 nb = (samples_size - wanted_size);
2044 samples_end = (uint8_t *)samples + samples_size - n;
2045 q = samples_end + n;
2047 memcpy(q, samples_end, n);
2051 samples_size = wanted_size;
2055 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2056 diff, avg_diff, samples_size - samples_size1,
2057 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2061 /* too big difference : may be initial PTS errors, so
2063 is->audio_diff_avg_count = 0;
2064 is->audio_diff_cum = 0;
2068 return samples_size;
2071 /* decode one audio frame and returns its uncompressed size */
2072 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2074 AVPacket *pkt_temp = &is->audio_pkt_temp;
2075 AVPacket *pkt = &is->audio_pkt;
2076 AVCodecContext *dec= is->audio_st->codec;
2077 int n, len1, data_size;
2081 /* NOTE: the audio packet can contain several frames */
2082 while (pkt_temp->size > 0) {
2083 data_size = sizeof(is->audio_buf1);
2084 len1 = avcodec_decode_audio3(dec,
2085 (int16_t *)is->audio_buf1, &data_size,
2088 /* if error, we skip the frame */
2093 pkt_temp->data += len1;
2094 pkt_temp->size -= len1;
2098 if (dec->sample_fmt != is->audio_src_fmt) {
2099 if (is->reformat_ctx)
2100 av_audio_convert_free(is->reformat_ctx);
2101 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2102 dec->sample_fmt, 1, NULL, 0);
2103 if (!is->reformat_ctx) {
2104 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2105 av_get_sample_fmt_name(dec->sample_fmt),
2106 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2109 is->audio_src_fmt= dec->sample_fmt;
2112 if (is->reformat_ctx) {
2113 const void *ibuf[6]= {is->audio_buf1};
2114 void *obuf[6]= {is->audio_buf2};
2115 int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2116 int ostride[6]= {2};
2117 int len= data_size/istride[0];
2118 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2119 printf("av_audio_convert() failed\n");
2122 is->audio_buf= is->audio_buf2;
2123 /* FIXME: existing code assume that data_size equals framesize*channels*2
2124 remove this legacy cruft */
2127 is->audio_buf= is->audio_buf1;
2130 /* if no pts, then compute it */
2131 pts = is->audio_clock;
2133 n = 2 * dec->channels;
2134 is->audio_clock += (double)data_size /
2135 (double)(n * dec->sample_rate);
2136 #if defined(DEBUG_SYNC)
2138 static double last_clock;
2139 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2140 is->audio_clock - last_clock,
2141 is->audio_clock, pts);
2142 last_clock = is->audio_clock;
2148 /* free the current packet */
2150 av_free_packet(pkt);
2152 if (is->paused || is->audioq.abort_request) {
2156 /* read next packet */
2157 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2159 if(pkt->data == flush_pkt.data){
2160 avcodec_flush_buffers(dec);
2164 pkt_temp->data = pkt->data;
2165 pkt_temp->size = pkt->size;
2167 /* if update the audio clock with the pts */
2168 if (pkt->pts != AV_NOPTS_VALUE) {
2169 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2174 /* get the current audio output buffer size, in samples. With SDL, we
2175 cannot have a precise information */
2176 static int audio_write_get_buf_size(VideoState *is)
2178 return is->audio_buf_size - is->audio_buf_index;
2182 /* prepare a new audio buffer */
2183 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2185 VideoState *is = opaque;
2186 int audio_size, len1;
2189 audio_callback_time = av_gettime();
2192 if (is->audio_buf_index >= is->audio_buf_size) {
2193 audio_size = audio_decode_frame(is, &pts);
2194 if (audio_size < 0) {
2195 /* if error, just output silence */
2196 is->audio_buf = is->audio_buf1;
2197 is->audio_buf_size = 1024;
2198 memset(is->audio_buf, 0, is->audio_buf_size);
2201 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2202 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2204 is->audio_buf_size = audio_size;
2206 is->audio_buf_index = 0;
2208 len1 = is->audio_buf_size - is->audio_buf_index;
2211 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2214 is->audio_buf_index += len1;
2218 /* open a given stream. Return 0 if OK */
2219 static int stream_component_open(VideoState *is, int stream_index)
2221 AVFormatContext *ic = is->ic;
2222 AVCodecContext *avctx;
2224 SDL_AudioSpec wanted_spec, spec;
2226 if (stream_index < 0 || stream_index >= ic->nb_streams)
2228 avctx = ic->streams[stream_index]->codec;
2230 /* prepare audio output */
2231 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2232 if (avctx->channels > 0) {
2233 avctx->request_channels = FFMIN(2, avctx->channels);
2235 avctx->request_channels = 2;
2239 codec = avcodec_find_decoder(avctx->codec_id);
2240 avctx->debug_mv = debug_mv;
2241 avctx->debug = debug;
2242 avctx->workaround_bugs = workaround_bugs;
2243 avctx->lowres = lowres;
2244 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2245 avctx->idct_algo= idct;
2246 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2247 avctx->skip_frame= skip_frame;
2248 avctx->skip_idct= skip_idct;
2249 avctx->skip_loop_filter= skip_loop_filter;
2250 avctx->error_recognition= error_recognition;
2251 avctx->error_concealment= error_concealment;
2252 avcodec_thread_init(avctx, thread_count);
2254 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2257 avcodec_open(avctx, codec) < 0)
2260 /* prepare audio output */
2261 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2262 wanted_spec.freq = avctx->sample_rate;
2263 wanted_spec.format = AUDIO_S16SYS;
2264 wanted_spec.channels = avctx->channels;
2265 wanted_spec.silence = 0;
2266 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2267 wanted_spec.callback = sdl_audio_callback;
2268 wanted_spec.userdata = is;
2269 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2270 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2273 is->audio_hw_buf_size = spec.size;
2274 is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2277 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2278 switch(avctx->codec_type) {
2279 case AVMEDIA_TYPE_AUDIO:
2280 is->audio_stream = stream_index;
2281 is->audio_st = ic->streams[stream_index];
2282 is->audio_buf_size = 0;
2283 is->audio_buf_index = 0;
2285 /* init averaging filter */
2286 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2287 is->audio_diff_avg_count = 0;
2288 /* since we do not have a precise anough audio fifo fullness,
2289 we correct audio sync only if larger than this threshold */
2290 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2292 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2293 packet_queue_init(&is->audioq);
2296 case AVMEDIA_TYPE_VIDEO:
2297 is->video_stream = stream_index;
2298 is->video_st = ic->streams[stream_index];
2300 // is->video_current_pts_time = av_gettime();
2302 packet_queue_init(&is->videoq);
2303 is->video_tid = SDL_CreateThread(video_thread, is);
2305 case AVMEDIA_TYPE_SUBTITLE:
2306 is->subtitle_stream = stream_index;
2307 is->subtitle_st = ic->streams[stream_index];
2308 packet_queue_init(&is->subtitleq);
2310 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2318 static void stream_component_close(VideoState *is, int stream_index)
2320 AVFormatContext *ic = is->ic;
2321 AVCodecContext *avctx;
2323 if (stream_index < 0 || stream_index >= ic->nb_streams)
2325 avctx = ic->streams[stream_index]->codec;
2327 switch(avctx->codec_type) {
2328 case AVMEDIA_TYPE_AUDIO:
2329 packet_queue_abort(&is->audioq);
2333 packet_queue_end(&is->audioq);
2334 if (is->reformat_ctx)
2335 av_audio_convert_free(is->reformat_ctx);
2336 is->reformat_ctx = NULL;
2338 case AVMEDIA_TYPE_VIDEO:
2339 packet_queue_abort(&is->videoq);
2341 /* note: we also signal this mutex to make sure we deblock the
2342 video thread in all cases */
2343 SDL_LockMutex(is->pictq_mutex);
2344 SDL_CondSignal(is->pictq_cond);
2345 SDL_UnlockMutex(is->pictq_mutex);
2347 SDL_WaitThread(is->video_tid, NULL);
2349 packet_queue_end(&is->videoq);
2351 case AVMEDIA_TYPE_SUBTITLE:
2352 packet_queue_abort(&is->subtitleq);
2354 /* note: we also signal this mutex to make sure we deblock the
2355 video thread in all cases */
2356 SDL_LockMutex(is->subpq_mutex);
2357 is->subtitle_stream_changed = 1;
2359 SDL_CondSignal(is->subpq_cond);
2360 SDL_UnlockMutex(is->subpq_mutex);
2362 SDL_WaitThread(is->subtitle_tid, NULL);
2364 packet_queue_end(&is->subtitleq);
2370 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2371 avcodec_close(avctx);
2372 switch(avctx->codec_type) {
2373 case AVMEDIA_TYPE_AUDIO:
2374 is->audio_st = NULL;
2375 is->audio_stream = -1;
2377 case AVMEDIA_TYPE_VIDEO:
2378 is->video_st = NULL;
2379 is->video_stream = -1;
2381 case AVMEDIA_TYPE_SUBTITLE:
2382 is->subtitle_st = NULL;
2383 is->subtitle_stream = -1;
2390 /* since we have only one decoding thread, we can use a global
2391 variable instead of a thread local variable */
2392 static VideoState *global_video_state;
2394 static int decode_interrupt_cb(void)
2396 return (global_video_state && global_video_state->abort_request);
2399 /* this thread gets the stream from the disk or the network */
2400 static int decode_thread(void *arg)
2402 VideoState *is = arg;
2403 AVFormatContext *ic;
2405 int st_index[AVMEDIA_TYPE_NB];
2406 AVPacket pkt1, *pkt = &pkt1;
2407 AVFormatParameters params, *ap = ¶ms;
2409 int pkt_in_play_range = 0;
2411 ic = avformat_alloc_context();
2413 memset(st_index, -1, sizeof(st_index));
2414 is->video_stream = -1;
2415 is->audio_stream = -1;
2416 is->subtitle_stream = -1;
2418 global_video_state = is;
2419 url_set_interrupt_cb(decode_interrupt_cb);
2421 memset(ap, 0, sizeof(*ap));
2423 ap->prealloced_context = 1;
2424 ap->width = frame_width;
2425 ap->height= frame_height;
2426 ap->time_base= (AVRational){1, 25};
2427 ap->pix_fmt = frame_pix_fmt;
2429 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2431 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2433 print_error(is->filename, err);
2440 ic->flags |= AVFMT_FLAG_GENPTS;
2442 err = av_find_stream_info(ic);
2444 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2449 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2452 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2454 /* if seeking requested, we execute it */
2455 if (start_time != AV_NOPTS_VALUE) {
2458 timestamp = start_time;
2459 /* add the stream start time */
2460 if (ic->start_time != AV_NOPTS_VALUE)
2461 timestamp += ic->start_time;
2462 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2464 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2465 is->filename, (double)timestamp / AV_TIME_BASE);
2469 for (i = 0; i < ic->nb_streams; i++)
2470 ic->streams[i]->discard = AVDISCARD_ALL;
2472 st_index[AVMEDIA_TYPE_VIDEO] =
2473 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2474 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2476 st_index[AVMEDIA_TYPE_AUDIO] =
2477 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2478 wanted_stream[AVMEDIA_TYPE_AUDIO],
2479 st_index[AVMEDIA_TYPE_VIDEO],
2482 st_index[AVMEDIA_TYPE_SUBTITLE] =
2483 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2484 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2485 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2486 st_index[AVMEDIA_TYPE_AUDIO] :
2487 st_index[AVMEDIA_TYPE_VIDEO]),
2490 dump_format(ic, 0, is->filename, 0);
2493 /* open the streams */
2494 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2495 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2499 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2500 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2502 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2504 if (!display_disable)
2508 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2509 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2512 if (is->video_stream < 0 && is->audio_stream < 0) {
2513 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2519 if (is->abort_request)
2521 if (is->paused != is->last_paused) {
2522 is->last_paused = is->paused;
2524 is->read_pause_return= av_read_pause(ic);
2528 #if CONFIG_RTSP_DEMUXER
2529 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2530 /* wait 10 ms to avoid trying to get another packet */
2537 int64_t seek_target= is->seek_pos;
2538 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2539 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2540 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2541 // of the seek_pos/seek_rel variables
2543 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2545 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2547 if (is->audio_stream >= 0) {
2548 packet_queue_flush(&is->audioq);
2549 packet_queue_put(&is->audioq, &flush_pkt);
2551 if (is->subtitle_stream >= 0) {
2552 packet_queue_flush(&is->subtitleq);
2553 packet_queue_put(&is->subtitleq, &flush_pkt);
2555 if (is->video_stream >= 0) {
2556 packet_queue_flush(&is->videoq);
2557 packet_queue_put(&is->videoq, &flush_pkt);
2564 /* if the queue are full, no need to read more */
2565 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2566 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2567 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2568 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2574 if(is->video_stream >= 0){
2575 av_init_packet(pkt);
2578 pkt->stream_index= is->video_stream;
2579 packet_queue_put(&is->videoq, pkt);
2582 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2583 if(loop!=1 && (!loop || --loop)){
2584 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2592 ret = av_read_frame(ic, pkt);
2594 if (ret == AVERROR_EOF || url_feof(ic->pb))
2596 if (url_ferror(ic->pb))
2598 SDL_Delay(100); /* wait for user event */
2601 /* check if packet is in play range specified by user, then queue, otherwise discard */
2602 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2603 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2604 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2605 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2606 <= ((double)duration/1000000);
2607 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2608 packet_queue_put(&is->audioq, pkt);
2609 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2610 packet_queue_put(&is->videoq, pkt);
2611 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2612 packet_queue_put(&is->subtitleq, pkt);
2614 av_free_packet(pkt);
2617 /* wait until the end */
2618 while (!is->abort_request) {
2624 /* disable interrupting */
2625 global_video_state = NULL;
2627 /* close each stream */
2628 if (is->audio_stream >= 0)
2629 stream_component_close(is, is->audio_stream);
2630 if (is->video_stream >= 0)
2631 stream_component_close(is, is->video_stream);
2632 if (is->subtitle_stream >= 0)
2633 stream_component_close(is, is->subtitle_stream);
2635 av_close_input_file(is->ic);
2636 is->ic = NULL; /* safety */
2638 url_set_interrupt_cb(NULL);
2643 event.type = FF_QUIT_EVENT;
2644 event.user.data1 = is;
2645 SDL_PushEvent(&event);
2650 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2654 is = av_mallocz(sizeof(VideoState));
2657 av_strlcpy(is->filename, filename, sizeof(is->filename));
2658 is->iformat = iformat;
2662 /* start video display */
2663 is->pictq_mutex = SDL_CreateMutex();
2664 is->pictq_cond = SDL_CreateCond();
2666 is->subpq_mutex = SDL_CreateMutex();
2667 is->subpq_cond = SDL_CreateCond();
2669 is->av_sync_type = av_sync_type;
2670 is->parse_tid = SDL_CreateThread(decode_thread, is);
2671 if (!is->parse_tid) {
2678 static void stream_cycle_channel(VideoState *is, int codec_type)
2680 AVFormatContext *ic = is->ic;
2681 int start_index, stream_index;
2684 if (codec_type == AVMEDIA_TYPE_VIDEO)
2685 start_index = is->video_stream;
2686 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2687 start_index = is->audio_stream;
2689 start_index = is->subtitle_stream;
2690 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2692 stream_index = start_index;
2694 if (++stream_index >= is->ic->nb_streams)
2696 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2703 if (stream_index == start_index)
2705 st = ic->streams[stream_index];
2706 if (st->codec->codec_type == codec_type) {
2707 /* check that parameters are OK */
2708 switch(codec_type) {
2709 case AVMEDIA_TYPE_AUDIO:
2710 if (st->codec->sample_rate != 0 &&
2711 st->codec->channels != 0)
2714 case AVMEDIA_TYPE_VIDEO:
2715 case AVMEDIA_TYPE_SUBTITLE:
2723 stream_component_close(is, start_index);
2724 stream_component_open(is, stream_index);
2728 static void toggle_full_screen(void)
2730 is_full_screen = !is_full_screen;
2731 if (!fs_screen_width) {
2732 /* use default SDL method */
2733 // SDL_WM_ToggleFullScreen(screen);
2735 video_open(cur_stream);
2738 static void toggle_pause(void)
2741 stream_pause(cur_stream);
2745 static void step_to_next_frame(void)
2748 /* if the stream is paused unpause it, then step */
2749 if (cur_stream->paused)
2750 stream_pause(cur_stream);
2755 static void toggle_audio_display(void)
2758 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2759 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2760 fill_rectangle(screen,
2761 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2763 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2767 /* handle an event sent by the GUI */
2768 static void event_loop(void)
2771 double incr, pos, frac;
2775 SDL_WaitEvent(&event);
2776 switch(event.type) {
2778 if (exit_on_keydown) {
2782 switch(event.key.keysym.sym) {
2788 toggle_full_screen();
2794 case SDLK_s: //S: Step to next frame
2795 step_to_next_frame();
2799 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2803 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2807 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2810 toggle_audio_display();
2825 if (seek_by_bytes) {
2826 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2827 pos= cur_stream->video_current_pos;
2828 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2829 pos= cur_stream->audio_pkt.pos;
2831 pos = url_ftell(cur_stream->ic->pb);
2832 if (cur_stream->ic->bit_rate)
2833 incr *= cur_stream->ic->bit_rate / 8.0;
2837 stream_seek(cur_stream, pos, incr, 1);
2839 pos = get_master_clock(cur_stream);
2841 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2849 case SDL_MOUSEBUTTONDOWN:
2850 if (exit_on_mousedown) {
2854 case SDL_MOUSEMOTION:
2855 if(event.type ==SDL_MOUSEBUTTONDOWN){
2858 if(event.motion.state != SDL_PRESSED)
2863 if(seek_by_bytes || cur_stream->ic->duration<=0){
2864 uint64_t size= url_fsize(cur_stream->ic->pb);
2865 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2869 int tns, thh, tmm, tss;
2870 tns = cur_stream->ic->duration/1000000LL;
2872 tmm = (tns%3600)/60;
2874 frac = x/cur_stream->width;
2879 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2880 hh, mm, ss, thh, tmm, tss);
2881 ts = frac*cur_stream->ic->duration;
2882 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2883 ts += cur_stream->ic->start_time;
2884 stream_seek(cur_stream, ts, 0, 0);
2888 case SDL_VIDEORESIZE:
2890 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2891 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2892 screen_width = cur_stream->width = event.resize.w;
2893 screen_height= cur_stream->height= event.resize.h;
2900 case FF_ALLOC_EVENT:
2901 video_open(event.user.data1);
2902 alloc_picture(event.user.data1);
2904 case FF_REFRESH_EVENT:
2905 video_refresh_timer(event.user.data1);
2906 cur_stream->refresh=0;
2914 static void opt_frame_size(const char *arg)
2916 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2917 fprintf(stderr, "Incorrect frame size\n");
2920 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2921 fprintf(stderr, "Frame size must be a multiple of 2\n");
2926 static int opt_width(const char *opt, const char *arg)
2928 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2932 static int opt_height(const char *opt, const char *arg)
2934 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2938 static void opt_format(const char *arg)
2940 file_iformat = av_find_input_format(arg);
2941 if (!file_iformat) {
2942 fprintf(stderr, "Unknown input format: %s\n", arg);
2947 static void opt_frame_pix_fmt(const char *arg)
2949 frame_pix_fmt = av_get_pix_fmt(arg);
2952 static int opt_sync(const char *opt, const char *arg)
2954 if (!strcmp(arg, "audio"))
2955 av_sync_type = AV_SYNC_AUDIO_MASTER;
2956 else if (!strcmp(arg, "video"))
2957 av_sync_type = AV_SYNC_VIDEO_MASTER;
2958 else if (!strcmp(arg, "ext"))
2959 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2961 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2967 static int opt_seek(const char *opt, const char *arg)
2969 start_time = parse_time_or_die(opt, arg, 1);
2973 static int opt_duration(const char *opt, const char *arg)
2975 duration = parse_time_or_die(opt, arg, 1);
2979 static int opt_debug(const char *opt, const char *arg)
2981 av_log_set_level(99);
2982 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2986 static int opt_vismv(const char *opt, const char *arg)
2988 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2992 static int opt_thread_count(const char *opt, const char *arg)
2994 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2996 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3001 static const OptionDef options[] = {
3002 #include "cmdutils_common_opts.h"
3003 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3004 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3005 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3006 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3007 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3008 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3009 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3010 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3011 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3012 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3013 { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
3014 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3015 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3016 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3017 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3018 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3019 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3020 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3021 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3022 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3023 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3024 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3025 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3026 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3027 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3028 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3029 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
3030 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
3031 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
3032 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3033 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3034 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3035 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3036 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3037 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3038 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3039 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3041 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3043 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3044 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3048 static void show_usage(void)
3050 printf("Simple media player\n");
3051 printf("usage: ffplay [options] input_file\n");
3055 static void show_help(void)
3057 av_log_set_callback(log_callback_help);
3059 show_help_options(options, "Main options:\n",
3061 show_help_options(options, "\nAdvanced options:\n",
3062 OPT_EXPERT, OPT_EXPERT);
3064 av_opt_show2(avcodec_opts[0], NULL,
3065 AV_OPT_FLAG_DECODING_PARAM, 0);
3067 av_opt_show2(avformat_opts, NULL,
3068 AV_OPT_FLAG_DECODING_PARAM, 0);
3069 #if !CONFIG_AVFILTER
3071 av_opt_show2(sws_opts, NULL,
3072 AV_OPT_FLAG_ENCODING_PARAM, 0);
3074 printf("\nWhile playing:\n"
3076 "f toggle full screen\n"
3078 "a cycle audio channel\n"
3079 "v cycle video channel\n"
3080 "t cycle subtitle channel\n"
3081 "w show audio waves\n"
3082 "s activate frame-step mode\n"
3083 "left/right seek backward/forward 10 seconds\n"
3084 "down/up seek backward/forward 1 minute\n"
3085 "mouse click seek to percentage in file corresponding to fraction of width\n"
3089 static void opt_input_file(const char *filename)
3091 if (input_filename) {
3092 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3093 filename, input_filename);
3096 if (!strcmp(filename, "-"))
3098 input_filename = filename;
3101 /* Called from the main */
3102 int main(int argc, char **argv)
3106 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3108 /* register all codecs, demux and protocols */
3109 avcodec_register_all();
3111 avdevice_register_all();
3114 avfilter_register_all();
3122 parse_options(argc, argv, options, opt_input_file);
3124 if (!input_filename) {
3126 fprintf(stderr, "An input file must be specified\n");
3127 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3131 if (display_disable) {
3134 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3135 #if !defined(__MINGW32__) && !defined(__APPLE__)
3136 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3138 if (SDL_Init (flags)) {
3139 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3143 if (!display_disable) {
3144 #if HAVE_SDL_VIDEO_SIZE
3145 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3146 fs_screen_width = vi->current_w;
3147 fs_screen_height = vi->current_h;
3151 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3152 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3153 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3155 av_init_packet(&flush_pkt);
3156 flush_pkt.data= "FLUSH";
3158 cur_stream = stream_open(input_filename, file_iformat);