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;
64 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
65 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
68 /* SDL audio buffer size, in samples. Should be small to have precise
69 A/V sync as SDL does not have hardware buffer fullness info. */
70 #define SDL_AUDIO_BUFFER_SIZE 1024
72 /* no AV sync correction is done if below the AV sync threshold */
73 #define AV_SYNC_THRESHOLD 0.01
74 /* no AV correction is done if too big error */
75 #define AV_NOSYNC_THRESHOLD 10.0
77 #define FRAME_SKIP_FACTOR 0.05
79 /* maximum audio speed change to get correct sync */
80 #define SAMPLE_CORRECTION_PERCENT_MAX 10
82 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
83 #define AUDIO_DIFF_AVG_NB 20
85 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
86 #define SAMPLE_ARRAY_SIZE (2*65536)
88 static int sws_flags = SWS_BICUBIC;
90 typedef struct PacketQueue {
91 AVPacketList *first_pkt, *last_pkt;
99 #define VIDEO_PICTURE_QUEUE_SIZE 2
100 #define SUBPICTURE_QUEUE_SIZE 4
102 typedef struct VideoPicture {
103 double pts; ///<presentation time stamp for this picture
104 double target_clock; ///<av_gettime() time at which this should be displayed ideally
105 int64_t pos; ///<byte position in file
107 int width, height; /* source height & width */
109 enum PixelFormat pix_fmt;
112 AVFilterBufferRef *picref;
116 typedef struct SubPicture {
117 double pts; /* presentation time stamp for this picture */
122 AV_SYNC_AUDIO_MASTER, /* default choice */
123 AV_SYNC_VIDEO_MASTER,
124 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
127 typedef struct VideoState {
128 SDL_Thread *parse_tid;
129 SDL_Thread *video_tid;
130 SDL_Thread *refresh_tid;
131 AVInputFormat *iformat;
140 int read_pause_return;
142 int dtg_active_format;
147 double external_clock; /* external clock base */
148 int64_t external_clock_time;
151 double audio_diff_cum; /* used for AV difference average computation */
152 double audio_diff_avg_coef;
153 double audio_diff_threshold;
154 int audio_diff_avg_count;
157 int audio_hw_buf_size;
158 /* samples output by the codec. we reserve more space for avsync
160 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
161 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
163 unsigned int audio_buf_size; /* in bytes */
164 int audio_buf_index; /* in bytes */
165 AVPacket audio_pkt_temp;
167 enum AVSampleFormat audio_src_fmt;
168 AVAudioConvert *reformat_ctx;
170 int show_audio; /* if true, display audio samples */
171 int16_t sample_array[SAMPLE_ARRAY_SIZE];
172 int sample_array_index;
176 FFTSample *rdft_data;
179 SDL_Thread *subtitle_tid;
181 int subtitle_stream_changed;
182 AVStream *subtitle_st;
183 PacketQueue subtitleq;
184 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
185 int subpq_size, subpq_rindex, subpq_windex;
186 SDL_mutex *subpq_mutex;
187 SDL_cond *subpq_cond;
190 double frame_last_pts;
191 double frame_last_delay;
192 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
196 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
197 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
198 int64_t video_current_pos; ///<current displayed file pos
199 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
200 int pictq_size, pictq_rindex, pictq_windex;
201 SDL_mutex *pictq_mutex;
202 SDL_cond *pictq_cond;
204 struct SwsContext *img_convert_ctx;
207 // QETimer *video_timer;
209 int width, height, xleft, ytop;
211 PtsCorrectionContext pts_ctx;
214 AVFilterContext *out_video_filter; ///<the last filter in the video chain
218 float skip_frames_index;
222 static void show_help(void);
223 static int audio_write_get_buf_size(VideoState *is);
225 /* options specified by the user */
226 static AVInputFormat *file_iformat;
227 static const char *input_filename;
228 static const char *window_title;
229 static int fs_screen_width;
230 static int fs_screen_height;
231 static int screen_width = 0;
232 static int screen_height = 0;
233 static int frame_width = 0;
234 static int frame_height = 0;
235 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
236 static int audio_disable;
237 static int video_disable;
238 static int wanted_stream[AVMEDIA_TYPE_NB]={
239 [AVMEDIA_TYPE_AUDIO]=-1,
240 [AVMEDIA_TYPE_VIDEO]=-1,
241 [AVMEDIA_TYPE_SUBTITLE]=-1,
243 static int seek_by_bytes=-1;
244 static int display_disable;
245 static int show_status = 1;
246 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
247 static int64_t start_time = AV_NOPTS_VALUE;
248 static int64_t duration = AV_NOPTS_VALUE;
249 static int debug = 0;
250 static int debug_mv = 0;
252 static int thread_count = 1;
253 static int workaround_bugs = 1;
255 static int genpts = 0;
256 static int lowres = 0;
257 static int idct = FF_IDCT_AUTO;
258 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
259 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
260 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
261 static int error_recognition = FF_ER_CAREFUL;
262 static int error_concealment = 3;
263 static int decoder_reorder_pts= -1;
265 static int exit_on_keydown;
266 static int exit_on_mousedown;
268 static int framedrop=1;
270 static int rdftspeed=20;
272 static char *vfilters = NULL;
275 /* current context */
276 static int is_full_screen;
277 static VideoState *cur_stream;
278 static int64_t audio_callback_time;
280 static AVPacket flush_pkt;
282 #define FF_ALLOC_EVENT (SDL_USEREVENT)
283 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
284 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
286 static SDL_Surface *screen;
288 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
290 /* packet queue handling */
291 static void packet_queue_init(PacketQueue *q)
293 memset(q, 0, sizeof(PacketQueue));
294 q->mutex = SDL_CreateMutex();
295 q->cond = SDL_CreateCond();
296 packet_queue_put(q, &flush_pkt);
299 static void packet_queue_flush(PacketQueue *q)
301 AVPacketList *pkt, *pkt1;
303 SDL_LockMutex(q->mutex);
304 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
306 av_free_packet(&pkt->pkt);
313 SDL_UnlockMutex(q->mutex);
316 static void packet_queue_end(PacketQueue *q)
318 packet_queue_flush(q);
319 SDL_DestroyMutex(q->mutex);
320 SDL_DestroyCond(q->cond);
323 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
327 /* duplicate the packet */
328 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
331 pkt1 = av_malloc(sizeof(AVPacketList));
338 SDL_LockMutex(q->mutex);
344 q->last_pkt->next = pkt1;
347 q->size += pkt1->pkt.size + sizeof(*pkt1);
348 /* XXX: should duplicate packet data in DV case */
349 SDL_CondSignal(q->cond);
351 SDL_UnlockMutex(q->mutex);
355 static void packet_queue_abort(PacketQueue *q)
357 SDL_LockMutex(q->mutex);
359 q->abort_request = 1;
361 SDL_CondSignal(q->cond);
363 SDL_UnlockMutex(q->mutex);
366 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
367 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
372 SDL_LockMutex(q->mutex);
375 if (q->abort_request) {
382 q->first_pkt = pkt1->next;
386 q->size -= pkt1->pkt.size + sizeof(*pkt1);
395 SDL_CondWait(q->cond, q->mutex);
398 SDL_UnlockMutex(q->mutex);
402 static inline void fill_rectangle(SDL_Surface *screen,
403 int x, int y, int w, int h, int color)
410 SDL_FillRect(screen, &rect, color);
414 /* draw only the border of a rectangle */
415 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
419 /* fill the background */
423 w2 = s->width - (x + w);
429 h2 = s->height - (y + h);
432 fill_rectangle(screen,
436 fill_rectangle(screen,
437 s->xleft + s->width - w2, s->ytop,
440 fill_rectangle(screen,
441 s->xleft + w1, s->ytop,
442 s->width - w1 - w2, h1,
444 fill_rectangle(screen,
445 s->xleft + w1, s->ytop + s->height - h2,
446 s->width - w1 - w2, h2,
451 #define ALPHA_BLEND(a, oldp, newp, s)\
452 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
454 #define RGBA_IN(r, g, b, a, s)\
456 unsigned int v = ((const uint32_t *)(s))[0];\
457 a = (v >> 24) & 0xff;\
458 r = (v >> 16) & 0xff;\
459 g = (v >> 8) & 0xff;\
463 #define YUVA_IN(y, u, v, a, s, pal)\
465 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
466 a = (val >> 24) & 0xff;\
467 y = (val >> 16) & 0xff;\
468 u = (val >> 8) & 0xff;\
472 #define YUVA_OUT(d, y, u, v, a)\
474 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
480 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
482 int wrap, wrap3, width2, skip2;
483 int y, u, v, a, u1, v1, a1, w, h;
484 uint8_t *lum, *cb, *cr;
487 int dstx, dsty, dstw, dsth;
489 dstw = av_clip(rect->w, 0, imgw);
490 dsth = av_clip(rect->h, 0, imgh);
491 dstx = av_clip(rect->x, 0, imgw - dstw);
492 dsty = av_clip(rect->y, 0, imgh - dsth);
493 lum = dst->data[0] + dsty * dst->linesize[0];
494 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
495 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
497 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
499 wrap = dst->linesize[0];
500 wrap3 = rect->pict.linesize[0];
501 p = rect->pict.data[0];
502 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
510 YUVA_IN(y, u, v, a, p, pal);
511 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
512 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
513 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
519 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
520 YUVA_IN(y, u, v, a, p, pal);
524 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
526 YUVA_IN(y, u, v, a, p + BPP, pal);
530 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
531 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
532 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
539 YUVA_IN(y, u, v, a, p, pal);
540 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
541 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
542 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
546 p += wrap3 - dstw * BPP;
547 lum += wrap - dstw - dstx;
548 cb += dst->linesize[1] - width2 - skip2;
549 cr += dst->linesize[2] - width2 - skip2;
551 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
557 YUVA_IN(y, u, v, a, p, pal);
561 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
564 YUVA_IN(y, u, v, a, p, pal);
568 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
569 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
570 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
576 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
577 YUVA_IN(y, u, v, a, p, pal);
581 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
583 YUVA_IN(y, u, v, a, p + BPP, pal);
587 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
591 YUVA_IN(y, u, v, a, p, pal);
595 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
597 YUVA_IN(y, u, v, a, p + BPP, pal);
601 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
603 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
604 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
608 p += -wrap3 + 2 * BPP;
612 YUVA_IN(y, u, v, a, p, pal);
616 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
619 YUVA_IN(y, u, v, a, p, pal);
623 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
624 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
625 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
631 p += wrap3 + (wrap3 - dstw * BPP);
632 lum += wrap + (wrap - dstw - dstx);
633 cb += dst->linesize[1] - width2 - skip2;
634 cr += dst->linesize[2] - width2 - skip2;
636 /* handle odd height */
643 YUVA_IN(y, u, v, a, p, pal);
644 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
645 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
646 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
652 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
653 YUVA_IN(y, u, v, a, p, pal);
657 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
659 YUVA_IN(y, u, v, a, p + BPP, pal);
663 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
664 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
665 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
672 YUVA_IN(y, u, v, a, p, pal);
673 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
674 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
675 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
680 static void free_subpicture(SubPicture *sp)
682 avsubtitle_free(&sp->sub);
685 static void video_image_display(VideoState *is)
691 int width, height, x, y;
695 vp = &is->pictq[is->pictq_rindex];
698 if (vp->picref->video->pixel_aspect.num == 0)
701 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
704 /* XXX: use variable in the frame */
705 if (is->video_st->sample_aspect_ratio.num)
706 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
707 else if (is->video_st->codec->sample_aspect_ratio.num)
708 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
712 if (aspect_ratio <= 0.0)
714 aspect_ratio *= (float)vp->width / (float)vp->height;
715 /* if an active format is indicated, then it overrides the
718 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
719 is->dtg_active_format = is->video_st->codec->dtg_active_format;
720 printf("dtg_active_format=%d\n", is->dtg_active_format);
724 switch(is->video_st->codec->dtg_active_format) {
725 case FF_DTG_AFD_SAME:
730 aspect_ratio = 4.0 / 3.0;
732 case FF_DTG_AFD_16_9:
733 aspect_ratio = 16.0 / 9.0;
735 case FF_DTG_AFD_14_9:
736 aspect_ratio = 14.0 / 9.0;
738 case FF_DTG_AFD_4_3_SP_14_9:
739 aspect_ratio = 14.0 / 9.0;
741 case FF_DTG_AFD_16_9_SP_14_9:
742 aspect_ratio = 14.0 / 9.0;
744 case FF_DTG_AFD_SP_4_3:
745 aspect_ratio = 4.0 / 3.0;
752 if (is->subpq_size > 0)
754 sp = &is->subpq[is->subpq_rindex];
756 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
758 SDL_LockYUVOverlay (vp->bmp);
760 pict.data[0] = vp->bmp->pixels[0];
761 pict.data[1] = vp->bmp->pixels[2];
762 pict.data[2] = vp->bmp->pixels[1];
764 pict.linesize[0] = vp->bmp->pitches[0];
765 pict.linesize[1] = vp->bmp->pitches[2];
766 pict.linesize[2] = vp->bmp->pitches[1];
768 for (i = 0; i < sp->sub.num_rects; i++)
769 blend_subrect(&pict, sp->sub.rects[i],
770 vp->bmp->w, vp->bmp->h);
772 SDL_UnlockYUVOverlay (vp->bmp);
778 /* XXX: we suppose the screen has a 1.0 pixel ratio */
780 width = ((int)rint(height * aspect_ratio)) & ~1;
781 if (width > is->width) {
783 height = ((int)rint(width / aspect_ratio)) & ~1;
785 x = (is->width - width) / 2;
786 y = (is->height - height) / 2;
787 if (!is->no_background) {
788 /* fill the background */
789 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
791 is->no_background = 0;
793 rect.x = is->xleft + x;
794 rect.y = is->ytop + y;
797 SDL_DisplayYUVOverlay(vp->bmp, &rect);
800 fill_rectangle(screen,
801 is->xleft, is->ytop, is->width, is->height,
802 QERGB(0x00, 0x00, 0x00));
807 static inline int compute_mod(int a, int b)
816 static void video_audio_display(VideoState *s)
818 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
819 int ch, channels, h, h2, bgcolor, fgcolor;
821 int rdft_bits, nb_freq;
823 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
825 nb_freq= 1<<(rdft_bits-1);
827 /* compute display index : center on currently output samples */
828 channels = s->audio_st->codec->channels;
829 nb_display_channels = channels;
831 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
833 delay = audio_write_get_buf_size(s);
836 /* to be more precise, we take into account the time spent since
837 the last buffer computation */
838 if (audio_callback_time) {
839 time_diff = av_gettime() - audio_callback_time;
840 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
843 delay += 2*data_used;
844 if (delay < data_used)
847 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
848 if(s->show_audio==1){
850 for(i=0; i<1000; i+=channels){
851 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
852 int a= s->sample_array[idx];
853 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
854 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
855 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
857 if(h<score && (b^c)<0){
864 s->last_i_start = i_start;
866 i_start = s->last_i_start;
869 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
870 if(s->show_audio==1){
871 fill_rectangle(screen,
872 s->xleft, s->ytop, s->width, s->height,
875 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
877 /* total height for one channel */
878 h = s->height / nb_display_channels;
879 /* graph height / 2 */
881 for(ch = 0;ch < nb_display_channels; ch++) {
883 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
884 for(x = 0; x < s->width; x++) {
885 y = (s->sample_array[i] * h2) >> 15;
892 fill_rectangle(screen,
893 s->xleft + x, ys, 1, y,
896 if (i >= SAMPLE_ARRAY_SIZE)
897 i -= SAMPLE_ARRAY_SIZE;
901 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
903 for(ch = 1;ch < nb_display_channels; ch++) {
904 y = s->ytop + ch * h;
905 fill_rectangle(screen,
906 s->xleft, y, s->width, 1,
909 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
911 nb_display_channels= FFMIN(nb_display_channels, 2);
912 if(rdft_bits != s->rdft_bits){
913 av_rdft_end(s->rdft);
914 av_free(s->rdft_data);
915 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
916 s->rdft_bits= rdft_bits;
917 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
921 for(ch = 0;ch < nb_display_channels; ch++) {
922 data[ch] = s->rdft_data + 2*nb_freq*ch;
924 for(x = 0; x < 2*nb_freq; x++) {
925 double w= (x-nb_freq)*(1.0/nb_freq);
926 data[ch][x]= s->sample_array[i]*(1.0-w*w);
928 if (i >= SAMPLE_ARRAY_SIZE)
929 i -= SAMPLE_ARRAY_SIZE;
931 av_rdft_calc(s->rdft, data[ch]);
933 //least efficient way to do this, we should of course directly access it but its more than fast enough
934 for(y=0; y<s->height; y++){
935 double w= 1/sqrt(nb_freq);
936 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]));
937 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
938 + data[1][2*y+1]*data[1][2*y+1])) : a;
941 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
943 fill_rectangle(screen,
944 s->xpos, s->height-y, 1, 1,
948 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
950 if(s->xpos >= s->width)
955 static int video_open(VideoState *is){
956 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
959 if(is_full_screen) flags |= SDL_FULLSCREEN;
960 else flags |= SDL_RESIZABLE;
962 if (is_full_screen && fs_screen_width) {
964 h = fs_screen_height;
965 } else if(!is_full_screen && screen_width){
969 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
970 w = is->out_video_filter->inputs[0]->w;
971 h = is->out_video_filter->inputs[0]->h;
973 }else if (is->video_st && is->video_st->codec->width){
974 w = is->video_st->codec->width;
975 h = is->video_st->codec->height;
981 if(screen && is->width == screen->w && screen->w == w
982 && is->height== screen->h && screen->h == h)
986 screen = SDL_SetVideoMode(w, h, 0, flags);
988 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
989 screen = SDL_SetVideoMode(w, h, 24, flags);
992 fprintf(stderr, "SDL: could not set video mode - exiting\n");
996 window_title = input_filename;
997 SDL_WM_SetCaption(window_title, window_title);
999 is->width = screen->w;
1000 is->height = screen->h;
1005 /* display the current picture, if any */
1006 static void video_display(VideoState *is)
1009 video_open(cur_stream);
1010 if (is->audio_st && is->show_audio)
1011 video_audio_display(is);
1012 else if (is->video_st)
1013 video_image_display(is);
1016 static int refresh_thread(void *opaque)
1018 VideoState *is= opaque;
1019 while(!is->abort_request){
1021 event.type = FF_REFRESH_EVENT;
1022 event.user.data1 = opaque;
1025 SDL_PushEvent(&event);
1027 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
1032 /* get the current audio clock value */
1033 static double get_audio_clock(VideoState *is)
1036 int hw_buf_size, bytes_per_sec;
1037 pts = is->audio_clock;
1038 hw_buf_size = audio_write_get_buf_size(is);
1041 bytes_per_sec = is->audio_st->codec->sample_rate *
1042 2 * is->audio_st->codec->channels;
1045 pts -= (double)hw_buf_size / bytes_per_sec;
1049 /* get the current video clock value */
1050 static double get_video_clock(VideoState *is)
1053 return is->video_current_pts;
1055 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1059 /* get the current external clock value */
1060 static double get_external_clock(VideoState *is)
1064 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1067 /* get the current master clock value */
1068 static double get_master_clock(VideoState *is)
1072 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1074 val = get_video_clock(is);
1076 val = get_audio_clock(is);
1077 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1079 val = get_audio_clock(is);
1081 val = get_video_clock(is);
1083 val = get_external_clock(is);
1088 /* seek in the stream */
1089 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1091 if (!is->seek_req) {
1094 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1096 is->seek_flags |= AVSEEK_FLAG_BYTE;
1101 /* pause or resume the video */
1102 static void stream_pause(VideoState *is)
1105 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1106 if(is->read_pause_return != AVERROR(ENOSYS)){
1107 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1109 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1111 is->paused = !is->paused;
1114 static double compute_target_time(double frame_current_pts, VideoState *is)
1116 double delay, sync_threshold, diff;
1118 /* compute nominal delay */
1119 delay = frame_current_pts - is->frame_last_pts;
1120 if (delay <= 0 || delay >= 10.0) {
1121 /* if incorrect delay, use previous one */
1122 delay = is->frame_last_delay;
1124 is->frame_last_delay = delay;
1126 is->frame_last_pts = frame_current_pts;
1128 /* update delay to follow master synchronisation source */
1129 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1130 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1131 /* if video is slave, we try to correct big delays by
1132 duplicating or deleting a frame */
1133 diff = get_video_clock(is) - get_master_clock(is);
1135 /* skip or repeat frame. We take into account the
1136 delay to compute the threshold. I still don't know
1137 if it is the best guess */
1138 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1139 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1140 if (diff <= -sync_threshold)
1142 else if (diff >= sync_threshold)
1146 is->frame_timer += delay;
1147 #if defined(DEBUG_SYNC)
1148 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1149 delay, actual_delay, frame_current_pts, -diff);
1152 return is->frame_timer;
1155 /* called to display each frame */
1156 static void video_refresh_timer(void *opaque)
1158 VideoState *is = opaque;
1161 SubPicture *sp, *sp2;
1165 if (is->pictq_size == 0) {
1166 //nothing to do, no picture to display in the que
1168 double time= av_gettime()/1000000.0;
1170 /* dequeue the picture */
1171 vp = &is->pictq[is->pictq_rindex];
1173 if(time < vp->target_clock)
1175 /* update current video pts */
1176 is->video_current_pts = vp->pts;
1177 is->video_current_pts_drift = is->video_current_pts - time;
1178 is->video_current_pos = vp->pos;
1179 if(is->pictq_size > 1){
1180 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1181 assert(nextvp->target_clock >= vp->target_clock);
1182 next_target= nextvp->target_clock;
1184 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1186 if(framedrop && time > next_target){
1187 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1188 if(is->pictq_size > 1 || time > next_target + 0.5){
1189 /* update queue size and signal for next picture */
1190 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1191 is->pictq_rindex = 0;
1193 SDL_LockMutex(is->pictq_mutex);
1195 SDL_CondSignal(is->pictq_cond);
1196 SDL_UnlockMutex(is->pictq_mutex);
1201 if(is->subtitle_st) {
1202 if (is->subtitle_stream_changed) {
1203 SDL_LockMutex(is->subpq_mutex);
1205 while (is->subpq_size) {
1206 free_subpicture(&is->subpq[is->subpq_rindex]);
1208 /* update queue size and signal for next picture */
1209 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1210 is->subpq_rindex = 0;
1214 is->subtitle_stream_changed = 0;
1216 SDL_CondSignal(is->subpq_cond);
1217 SDL_UnlockMutex(is->subpq_mutex);
1219 if (is->subpq_size > 0) {
1220 sp = &is->subpq[is->subpq_rindex];
1222 if (is->subpq_size > 1)
1223 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1227 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1228 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1230 free_subpicture(sp);
1232 /* update queue size and signal for next picture */
1233 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1234 is->subpq_rindex = 0;
1236 SDL_LockMutex(is->subpq_mutex);
1238 SDL_CondSignal(is->subpq_cond);
1239 SDL_UnlockMutex(is->subpq_mutex);
1245 /* display picture */
1246 if (!display_disable)
1249 /* update queue size and signal for next picture */
1250 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1251 is->pictq_rindex = 0;
1253 SDL_LockMutex(is->pictq_mutex);
1255 SDL_CondSignal(is->pictq_cond);
1256 SDL_UnlockMutex(is->pictq_mutex);
1258 } else if (is->audio_st) {
1259 /* draw the next audio frame */
1261 /* if only audio stream, then display the audio bars (better
1262 than nothing, just to test the implementation */
1264 /* display picture */
1265 if (!display_disable)
1269 static int64_t last_time;
1271 int aqsize, vqsize, sqsize;
1274 cur_time = av_gettime();
1275 if (!last_time || (cur_time - last_time) >= 30000) {
1280 aqsize = is->audioq.size;
1282 vqsize = is->videoq.size;
1283 if (is->subtitle_st)
1284 sqsize = is->subtitleq.size;
1286 if (is->audio_st && is->video_st)
1287 av_diff = get_audio_clock(is) - get_video_clock(is);
1288 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1289 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);
1291 last_time = cur_time;
1296 static void stream_close(VideoState *is)
1300 /* XXX: use a special url_shutdown call to abort parse cleanly */
1301 is->abort_request = 1;
1302 SDL_WaitThread(is->parse_tid, NULL);
1303 SDL_WaitThread(is->refresh_tid, NULL);
1305 /* free all pictures */
1306 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1310 avfilter_unref_buffer(vp->picref);
1315 SDL_FreeYUVOverlay(vp->bmp);
1319 SDL_DestroyMutex(is->pictq_mutex);
1320 SDL_DestroyCond(is->pictq_cond);
1321 SDL_DestroyMutex(is->subpq_mutex);
1322 SDL_DestroyCond(is->subpq_cond);
1323 #if !CONFIG_AVFILTER
1324 if (is->img_convert_ctx)
1325 sws_freeContext(is->img_convert_ctx);
1330 static void do_exit(void)
1333 stream_close(cur_stream);
1343 av_log(NULL, AV_LOG_QUIET, "");
1347 /* allocate a picture (needs to do that in main thread to avoid
1348 potential locking problems */
1349 static void alloc_picture(void *opaque)
1351 VideoState *is = opaque;
1354 vp = &is->pictq[is->pictq_windex];
1357 SDL_FreeYUVOverlay(vp->bmp);
1361 avfilter_unref_buffer(vp->picref);
1364 vp->width = is->out_video_filter->inputs[0]->w;
1365 vp->height = is->out_video_filter->inputs[0]->h;
1366 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1368 vp->width = is->video_st->codec->width;
1369 vp->height = is->video_st->codec->height;
1370 vp->pix_fmt = is->video_st->codec->pix_fmt;
1373 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1376 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1377 /* SDL allocates a buffer smaller than requested if the video
1378 * overlay hardware is unable to support the requested size. */
1379 fprintf(stderr, "Error: the video system does not support an image\n"
1380 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1381 "to reduce the image size.\n", vp->width, vp->height );
1385 SDL_LockMutex(is->pictq_mutex);
1387 SDL_CondSignal(is->pictq_cond);
1388 SDL_UnlockMutex(is->pictq_mutex);
1393 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1395 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1402 /* wait until we have space to put a new picture */
1403 SDL_LockMutex(is->pictq_mutex);
1405 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1406 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1408 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1409 !is->videoq.abort_request) {
1410 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1412 SDL_UnlockMutex(is->pictq_mutex);
1414 if (is->videoq.abort_request)
1417 vp = &is->pictq[is->pictq_windex];
1419 /* alloc or resize hardware picture buffer */
1422 vp->width != is->out_video_filter->inputs[0]->w ||
1423 vp->height != is->out_video_filter->inputs[0]->h) {
1425 vp->width != is->video_st->codec->width ||
1426 vp->height != is->video_st->codec->height) {
1432 /* the allocation must be done in the main thread to avoid
1434 event.type = FF_ALLOC_EVENT;
1435 event.user.data1 = is;
1436 SDL_PushEvent(&event);
1438 /* wait until the picture is allocated */
1439 SDL_LockMutex(is->pictq_mutex);
1440 while (!vp->allocated && !is->videoq.abort_request) {
1441 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1443 SDL_UnlockMutex(is->pictq_mutex);
1445 if (is->videoq.abort_request)
1449 /* if the frame is not skipped, then display it */
1454 avfilter_unref_buffer(vp->picref);
1455 vp->picref = src_frame->opaque;
1458 /* get a pointer on the bitmap */
1459 SDL_LockYUVOverlay (vp->bmp);
1461 dst_pix_fmt = PIX_FMT_YUV420P;
1462 memset(&pict,0,sizeof(AVPicture));
1463 pict.data[0] = vp->bmp->pixels[0];
1464 pict.data[1] = vp->bmp->pixels[2];
1465 pict.data[2] = vp->bmp->pixels[1];
1467 pict.linesize[0] = vp->bmp->pitches[0];
1468 pict.linesize[1] = vp->bmp->pitches[2];
1469 pict.linesize[2] = vp->bmp->pitches[1];
1472 pict_src.data[0] = src_frame->data[0];
1473 pict_src.data[1] = src_frame->data[1];
1474 pict_src.data[2] = src_frame->data[2];
1476 pict_src.linesize[0] = src_frame->linesize[0];
1477 pict_src.linesize[1] = src_frame->linesize[1];
1478 pict_src.linesize[2] = src_frame->linesize[2];
1480 //FIXME use direct rendering
1481 av_picture_copy(&pict, &pict_src,
1482 vp->pix_fmt, vp->width, vp->height);
1484 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1485 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1486 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1487 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1488 if (is->img_convert_ctx == NULL) {
1489 fprintf(stderr, "Cannot initialize the conversion context\n");
1492 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1493 0, vp->height, pict.data, pict.linesize);
1495 /* update the bitmap content */
1496 SDL_UnlockYUVOverlay(vp->bmp);
1501 /* now we can update the picture count */
1502 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1503 is->pictq_windex = 0;
1504 SDL_LockMutex(is->pictq_mutex);
1505 vp->target_clock= compute_target_time(vp->pts, is);
1508 SDL_UnlockMutex(is->pictq_mutex);
1514 * compute the exact PTS for the picture if it is omitted in the stream
1515 * @param pts1 the dts of the pkt / pts of the frame
1517 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1519 double frame_delay, pts;
1524 /* update video clock with pts, if present */
1525 is->video_clock = pts;
1527 pts = is->video_clock;
1529 /* update video clock for next frame */
1530 frame_delay = av_q2d(is->video_st->codec->time_base);
1531 /* for MPEG2, the frame can be repeated, so we update the
1532 clock accordingly */
1533 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1534 is->video_clock += frame_delay;
1536 #if defined(DEBUG_SYNC) && 0
1537 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1538 av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1540 return queue_picture(is, src_frame, pts, pos);
1543 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1545 int len1, got_picture, i;
1547 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1550 if (pkt->data == flush_pkt.data) {
1551 avcodec_flush_buffers(is->video_st->codec);
1553 SDL_LockMutex(is->pictq_mutex);
1554 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1555 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1556 is->pictq[i].target_clock= 0;
1558 while (is->pictq_size && !is->videoq.abort_request) {
1559 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1561 is->video_current_pos = -1;
1562 SDL_UnlockMutex(is->pictq_mutex);
1564 init_pts_correction(&is->pts_ctx);
1565 is->frame_last_pts = AV_NOPTS_VALUE;
1566 is->frame_last_delay = 0;
1567 is->frame_timer = (double)av_gettime() / 1000000.0;
1568 is->skip_frames = 1;
1569 is->skip_frames_index = 0;
1573 len1 = avcodec_decode_video2(is->video_st->codec,
1574 frame, &got_picture,
1578 if (decoder_reorder_pts == -1) {
1579 *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, pkt->dts);
1580 } else if (decoder_reorder_pts) {
1581 *pts = frame->pkt_pts;
1586 if (*pts == AV_NOPTS_VALUE) {
1590 is->skip_frames_index += 1;
1591 if(is->skip_frames_index >= is->skip_frames){
1592 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1607 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1609 AVFilterContext *ctx = codec->opaque;
1610 AVFilterBufferRef *ref;
1611 int perms = AV_PERM_WRITE;
1612 int i, w, h, stride[4];
1615 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1616 perms |= AV_PERM_NEG_LINESIZES;
1618 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1619 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1620 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1621 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1623 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1627 avcodec_align_dimensions2(codec, &w, &h, stride);
1628 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1632 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1635 ref->video->w = codec->width;
1636 ref->video->h = codec->height;
1637 for(i = 0; i < 4; i ++) {
1638 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1639 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1642 ref->data[i] += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1644 pic->data[i] = ref->data[i];
1645 pic->linesize[i] = ref->linesize[i];
1649 pic->type = FF_BUFFER_TYPE_USER;
1650 pic->reordered_opaque = codec->reordered_opaque;
1651 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1652 else pic->pkt_pts = AV_NOPTS_VALUE;
1656 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1658 memset(pic->data, 0, sizeof(pic->data));
1659 avfilter_unref_buffer(pic->opaque);
1662 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1664 AVFilterBufferRef *ref = pic->opaque;
1666 if (pic->data[0] == NULL) {
1667 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1668 return codec->get_buffer(codec, pic);
1671 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1672 (codec->pix_fmt != ref->format)) {
1673 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1677 pic->reordered_opaque = codec->reordered_opaque;
1678 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1679 else pic->pkt_pts = AV_NOPTS_VALUE;
1683 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1685 FilterPriv *priv = ctx->priv;
1686 AVCodecContext *codec;
1687 if(!opaque) return -1;
1690 codec = priv->is->video_st->codec;
1691 codec->opaque = ctx;
1692 if(codec->codec->capabilities & CODEC_CAP_DR1) {
1694 codec->get_buffer = input_get_buffer;
1695 codec->release_buffer = input_release_buffer;
1696 codec->reget_buffer = input_reget_buffer;
1699 priv->frame = avcodec_alloc_frame();
1704 static void input_uninit(AVFilterContext *ctx)
1706 FilterPriv *priv = ctx->priv;
1707 av_free(priv->frame);
1710 static int input_request_frame(AVFilterLink *link)
1712 FilterPriv *priv = link->src->priv;
1713 AVFilterBufferRef *picref;
1718 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1719 av_free_packet(&pkt);
1724 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1726 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1727 av_image_copy(picref->data, picref->linesize,
1728 priv->frame->data, priv->frame->linesize,
1729 picref->format, link->w, link->h);
1731 av_free_packet(&pkt);
1734 picref->pos = pkt.pos;
1735 picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1736 avfilter_start_frame(link, picref);
1737 avfilter_draw_slice(link, 0, link->h, 1);
1738 avfilter_end_frame(link);
1743 static int input_query_formats(AVFilterContext *ctx)
1745 FilterPriv *priv = ctx->priv;
1746 enum PixelFormat pix_fmts[] = {
1747 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1750 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1754 static int input_config_props(AVFilterLink *link)
1756 FilterPriv *priv = link->src->priv;
1757 AVCodecContext *c = priv->is->video_st->codec;
1760 link->h = c->height;
1761 link->time_base = priv->is->video_st->time_base;
1766 static AVFilter input_filter =
1768 .name = "ffplay_input",
1770 .priv_size = sizeof(FilterPriv),
1773 .uninit = input_uninit,
1775 .query_formats = input_query_formats,
1777 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1778 .outputs = (AVFilterPad[]) {{ .name = "default",
1779 .type = AVMEDIA_TYPE_VIDEO,
1780 .request_frame = input_request_frame,
1781 .config_props = input_config_props, },
1785 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1787 char sws_flags_str[128];
1789 FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1790 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1791 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1792 graph->scale_sws_opts = av_strdup(sws_flags_str);
1794 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1795 NULL, is, graph)) < 0)
1797 if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1798 NULL, &ffsink_ctx, graph)) < 0)
1802 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1803 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1805 outputs->name = av_strdup("in");
1806 outputs->filter_ctx = filt_src;
1807 outputs->pad_idx = 0;
1808 outputs->next = NULL;
1810 inputs->name = av_strdup("out");
1811 inputs->filter_ctx = filt_out;
1812 inputs->pad_idx = 0;
1813 inputs->next = NULL;
1815 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1817 av_freep(&vfilters);
1819 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1823 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1826 is->out_video_filter = filt_out;
1831 #endif /* CONFIG_AVFILTER */
1833 static int video_thread(void *arg)
1835 VideoState *is = arg;
1836 AVFrame *frame= avcodec_alloc_frame();
1842 AVFilterGraph *graph = avfilter_graph_alloc();
1843 AVFilterContext *filt_out = NULL;
1846 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1848 filt_out = is->out_video_filter;
1852 #if !CONFIG_AVFILTER
1855 AVFilterBufferRef *picref;
1858 while (is->paused && !is->videoq.abort_request)
1861 ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1863 pts_int = picref->pts;
1865 frame->opaque = picref;
1868 if (av_cmp_q(tb, is->video_st->time_base)) {
1869 av_unused int64_t pts1 = pts_int;
1870 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1871 av_dlog(NULL, "video_thread(): "
1872 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1873 tb.num, tb.den, pts1,
1874 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1877 ret = get_video_frame(is, frame, &pts_int, &pkt);
1880 if (ret < 0) goto the_end;
1885 pts = pts_int*av_q2d(is->video_st->time_base);
1888 ret = output_picture2(is, frame, pts, pos);
1890 ret = output_picture2(is, frame, pts, pkt.pos);
1891 av_free_packet(&pkt);
1898 stream_pause(cur_stream);
1902 avfilter_graph_free(graph);
1909 static int subtitle_thread(void *arg)
1911 VideoState *is = arg;
1913 AVPacket pkt1, *pkt = &pkt1;
1914 int len1, got_subtitle;
1917 int r, g, b, y, u, v, a;
1920 while (is->paused && !is->subtitleq.abort_request) {
1923 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1926 if(pkt->data == flush_pkt.data){
1927 avcodec_flush_buffers(is->subtitle_st->codec);
1930 SDL_LockMutex(is->subpq_mutex);
1931 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1932 !is->subtitleq.abort_request) {
1933 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1935 SDL_UnlockMutex(is->subpq_mutex);
1937 if (is->subtitleq.abort_request)
1940 sp = &is->subpq[is->subpq_windex];
1942 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1943 this packet, if any */
1945 if (pkt->pts != AV_NOPTS_VALUE)
1946 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1948 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1949 &sp->sub, &got_subtitle,
1953 if (got_subtitle && sp->sub.format == 0) {
1956 for (i = 0; i < sp->sub.num_rects; i++)
1958 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1960 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1961 y = RGB_TO_Y_CCIR(r, g, b);
1962 u = RGB_TO_U_CCIR(r, g, b, 0);
1963 v = RGB_TO_V_CCIR(r, g, b, 0);
1964 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1968 /* now we can update the picture count */
1969 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1970 is->subpq_windex = 0;
1971 SDL_LockMutex(is->subpq_mutex);
1973 SDL_UnlockMutex(is->subpq_mutex);
1975 av_free_packet(pkt);
1978 // stream_pause(cur_stream);
1984 /* copy samples for viewing in editor window */
1985 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1987 int size, len, channels;
1989 channels = is->audio_st->codec->channels;
1991 size = samples_size / sizeof(short);
1993 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1996 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1998 is->sample_array_index += len;
1999 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
2000 is->sample_array_index = 0;
2005 /* return the new audio buffer size (samples can be added or deleted
2006 to get better sync if video or external master clock) */
2007 static int synchronize_audio(VideoState *is, short *samples,
2008 int samples_size1, double pts)
2010 int n, samples_size;
2013 n = 2 * is->audio_st->codec->channels;
2014 samples_size = samples_size1;
2016 /* if not master, then we try to remove or add samples to correct the clock */
2017 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2018 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2019 double diff, avg_diff;
2020 int wanted_size, min_size, max_size, nb_samples;
2022 ref_clock = get_master_clock(is);
2023 diff = get_audio_clock(is) - ref_clock;
2025 if (diff < AV_NOSYNC_THRESHOLD) {
2026 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2027 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2028 /* not enough measures to have a correct estimate */
2029 is->audio_diff_avg_count++;
2031 /* estimate the A-V difference */
2032 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2034 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2035 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2036 nb_samples = samples_size / n;
2038 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2039 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2040 if (wanted_size < min_size)
2041 wanted_size = min_size;
2042 else if (wanted_size > max_size)
2043 wanted_size = max_size;
2045 /* add or remove samples to correction the synchro */
2046 if (wanted_size < samples_size) {
2047 /* remove samples */
2048 samples_size = wanted_size;
2049 } else if (wanted_size > samples_size) {
2050 uint8_t *samples_end, *q;
2054 nb = (samples_size - wanted_size);
2055 samples_end = (uint8_t *)samples + samples_size - n;
2056 q = samples_end + n;
2058 memcpy(q, samples_end, n);
2062 samples_size = wanted_size;
2066 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2067 diff, avg_diff, samples_size - samples_size1,
2068 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2072 /* too big difference : may be initial PTS errors, so
2074 is->audio_diff_avg_count = 0;
2075 is->audio_diff_cum = 0;
2079 return samples_size;
2082 /* decode one audio frame and returns its uncompressed size */
2083 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2085 AVPacket *pkt_temp = &is->audio_pkt_temp;
2086 AVPacket *pkt = &is->audio_pkt;
2087 AVCodecContext *dec= is->audio_st->codec;
2088 int n, len1, data_size;
2092 /* NOTE: the audio packet can contain several frames */
2093 while (pkt_temp->size > 0) {
2094 data_size = sizeof(is->audio_buf1);
2095 len1 = avcodec_decode_audio3(dec,
2096 (int16_t *)is->audio_buf1, &data_size,
2099 /* if error, we skip the frame */
2104 pkt_temp->data += len1;
2105 pkt_temp->size -= len1;
2109 if (dec->sample_fmt != is->audio_src_fmt) {
2110 if (is->reformat_ctx)
2111 av_audio_convert_free(is->reformat_ctx);
2112 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2113 dec->sample_fmt, 1, NULL, 0);
2114 if (!is->reformat_ctx) {
2115 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2116 av_get_sample_fmt_name(dec->sample_fmt),
2117 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2120 is->audio_src_fmt= dec->sample_fmt;
2123 if (is->reformat_ctx) {
2124 const void *ibuf[6]= {is->audio_buf1};
2125 void *obuf[6]= {is->audio_buf2};
2126 int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2127 int ostride[6]= {2};
2128 int len= data_size/istride[0];
2129 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2130 printf("av_audio_convert() failed\n");
2133 is->audio_buf= is->audio_buf2;
2134 /* FIXME: existing code assume that data_size equals framesize*channels*2
2135 remove this legacy cruft */
2138 is->audio_buf= is->audio_buf1;
2141 /* if no pts, then compute it */
2142 pts = is->audio_clock;
2144 n = 2 * dec->channels;
2145 is->audio_clock += (double)data_size /
2146 (double)(n * dec->sample_rate);
2147 #if defined(DEBUG_SYNC)
2149 static double last_clock;
2150 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2151 is->audio_clock - last_clock,
2152 is->audio_clock, pts);
2153 last_clock = is->audio_clock;
2159 /* free the current packet */
2161 av_free_packet(pkt);
2163 if (is->paused || is->audioq.abort_request) {
2167 /* read next packet */
2168 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2170 if(pkt->data == flush_pkt.data){
2171 avcodec_flush_buffers(dec);
2175 pkt_temp->data = pkt->data;
2176 pkt_temp->size = pkt->size;
2178 /* if update the audio clock with the pts */
2179 if (pkt->pts != AV_NOPTS_VALUE) {
2180 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2185 /* get the current audio output buffer size, in samples. With SDL, we
2186 cannot have a precise information */
2187 static int audio_write_get_buf_size(VideoState *is)
2189 return is->audio_buf_size - is->audio_buf_index;
2193 /* prepare a new audio buffer */
2194 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2196 VideoState *is = opaque;
2197 int audio_size, len1;
2200 audio_callback_time = av_gettime();
2203 if (is->audio_buf_index >= is->audio_buf_size) {
2204 audio_size = audio_decode_frame(is, &pts);
2205 if (audio_size < 0) {
2206 /* if error, just output silence */
2207 is->audio_buf = is->audio_buf1;
2208 is->audio_buf_size = 1024;
2209 memset(is->audio_buf, 0, is->audio_buf_size);
2212 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2213 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2215 is->audio_buf_size = audio_size;
2217 is->audio_buf_index = 0;
2219 len1 = is->audio_buf_size - is->audio_buf_index;
2222 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2225 is->audio_buf_index += len1;
2229 /* open a given stream. Return 0 if OK */
2230 static int stream_component_open(VideoState *is, int stream_index)
2232 AVFormatContext *ic = is->ic;
2233 AVCodecContext *avctx;
2235 SDL_AudioSpec wanted_spec, spec;
2237 if (stream_index < 0 || stream_index >= ic->nb_streams)
2239 avctx = ic->streams[stream_index]->codec;
2241 /* prepare audio output */
2242 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2243 if (avctx->channels > 0) {
2244 avctx->request_channels = FFMIN(2, avctx->channels);
2246 avctx->request_channels = 2;
2250 codec = avcodec_find_decoder(avctx->codec_id);
2251 avctx->debug_mv = debug_mv;
2252 avctx->debug = debug;
2253 avctx->workaround_bugs = workaround_bugs;
2254 avctx->lowres = lowres;
2255 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2256 avctx->idct_algo= idct;
2257 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2258 avctx->skip_frame= skip_frame;
2259 avctx->skip_idct= skip_idct;
2260 avctx->skip_loop_filter= skip_loop_filter;
2261 avctx->error_recognition= error_recognition;
2262 avctx->error_concealment= error_concealment;
2263 avcodec_thread_init(avctx, thread_count);
2265 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2268 avcodec_open(avctx, codec) < 0)
2271 /* prepare audio output */
2272 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2273 wanted_spec.freq = avctx->sample_rate;
2274 wanted_spec.format = AUDIO_S16SYS;
2275 wanted_spec.channels = avctx->channels;
2276 wanted_spec.silence = 0;
2277 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2278 wanted_spec.callback = sdl_audio_callback;
2279 wanted_spec.userdata = is;
2280 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2281 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2284 is->audio_hw_buf_size = spec.size;
2285 is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2288 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2289 switch(avctx->codec_type) {
2290 case AVMEDIA_TYPE_AUDIO:
2291 is->audio_stream = stream_index;
2292 is->audio_st = ic->streams[stream_index];
2293 is->audio_buf_size = 0;
2294 is->audio_buf_index = 0;
2296 /* init averaging filter */
2297 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2298 is->audio_diff_avg_count = 0;
2299 /* since we do not have a precise anough audio fifo fullness,
2300 we correct audio sync only if larger than this threshold */
2301 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2303 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2304 packet_queue_init(&is->audioq);
2307 case AVMEDIA_TYPE_VIDEO:
2308 is->video_stream = stream_index;
2309 is->video_st = ic->streams[stream_index];
2311 // is->video_current_pts_time = av_gettime();
2313 packet_queue_init(&is->videoq);
2314 is->video_tid = SDL_CreateThread(video_thread, is);
2316 case AVMEDIA_TYPE_SUBTITLE:
2317 is->subtitle_stream = stream_index;
2318 is->subtitle_st = ic->streams[stream_index];
2319 packet_queue_init(&is->subtitleq);
2321 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2329 static void stream_component_close(VideoState *is, int stream_index)
2331 AVFormatContext *ic = is->ic;
2332 AVCodecContext *avctx;
2334 if (stream_index < 0 || stream_index >= ic->nb_streams)
2336 avctx = ic->streams[stream_index]->codec;
2338 switch(avctx->codec_type) {
2339 case AVMEDIA_TYPE_AUDIO:
2340 packet_queue_abort(&is->audioq);
2344 packet_queue_end(&is->audioq);
2345 if (is->reformat_ctx)
2346 av_audio_convert_free(is->reformat_ctx);
2347 is->reformat_ctx = NULL;
2349 case AVMEDIA_TYPE_VIDEO:
2350 packet_queue_abort(&is->videoq);
2352 /* note: we also signal this mutex to make sure we deblock the
2353 video thread in all cases */
2354 SDL_LockMutex(is->pictq_mutex);
2355 SDL_CondSignal(is->pictq_cond);
2356 SDL_UnlockMutex(is->pictq_mutex);
2358 SDL_WaitThread(is->video_tid, NULL);
2360 packet_queue_end(&is->videoq);
2362 case AVMEDIA_TYPE_SUBTITLE:
2363 packet_queue_abort(&is->subtitleq);
2365 /* note: we also signal this mutex to make sure we deblock the
2366 video thread in all cases */
2367 SDL_LockMutex(is->subpq_mutex);
2368 is->subtitle_stream_changed = 1;
2370 SDL_CondSignal(is->subpq_cond);
2371 SDL_UnlockMutex(is->subpq_mutex);
2373 SDL_WaitThread(is->subtitle_tid, NULL);
2375 packet_queue_end(&is->subtitleq);
2381 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2382 avcodec_close(avctx);
2383 switch(avctx->codec_type) {
2384 case AVMEDIA_TYPE_AUDIO:
2385 is->audio_st = NULL;
2386 is->audio_stream = -1;
2388 case AVMEDIA_TYPE_VIDEO:
2389 is->video_st = NULL;
2390 is->video_stream = -1;
2392 case AVMEDIA_TYPE_SUBTITLE:
2393 is->subtitle_st = NULL;
2394 is->subtitle_stream = -1;
2401 /* since we have only one decoding thread, we can use a global
2402 variable instead of a thread local variable */
2403 static VideoState *global_video_state;
2405 static int decode_interrupt_cb(void)
2407 return (global_video_state && global_video_state->abort_request);
2410 /* this thread gets the stream from the disk or the network */
2411 static int decode_thread(void *arg)
2413 VideoState *is = arg;
2414 AVFormatContext *ic;
2416 int st_index[AVMEDIA_TYPE_NB];
2417 AVPacket pkt1, *pkt = &pkt1;
2418 AVFormatParameters params, *ap = ¶ms;
2420 int pkt_in_play_range = 0;
2422 ic = avformat_alloc_context();
2424 memset(st_index, -1, sizeof(st_index));
2425 is->video_stream = -1;
2426 is->audio_stream = -1;
2427 is->subtitle_stream = -1;
2429 global_video_state = is;
2430 url_set_interrupt_cb(decode_interrupt_cb);
2432 memset(ap, 0, sizeof(*ap));
2434 ap->prealloced_context = 1;
2435 ap->width = frame_width;
2436 ap->height= frame_height;
2437 ap->time_base= (AVRational){1, 25};
2438 ap->pix_fmt = frame_pix_fmt;
2440 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2442 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2444 print_error(is->filename, err);
2451 ic->flags |= AVFMT_FLAG_GENPTS;
2453 err = av_find_stream_info(ic);
2455 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2460 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2463 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2465 /* if seeking requested, we execute it */
2466 if (start_time != AV_NOPTS_VALUE) {
2469 timestamp = start_time;
2470 /* add the stream start time */
2471 if (ic->start_time != AV_NOPTS_VALUE)
2472 timestamp += ic->start_time;
2473 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2475 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2476 is->filename, (double)timestamp / AV_TIME_BASE);
2480 for (i = 0; i < ic->nb_streams; i++)
2481 ic->streams[i]->discard = AVDISCARD_ALL;
2483 st_index[AVMEDIA_TYPE_VIDEO] =
2484 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2485 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2487 st_index[AVMEDIA_TYPE_AUDIO] =
2488 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2489 wanted_stream[AVMEDIA_TYPE_AUDIO],
2490 st_index[AVMEDIA_TYPE_VIDEO],
2493 st_index[AVMEDIA_TYPE_SUBTITLE] =
2494 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2495 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2496 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2497 st_index[AVMEDIA_TYPE_AUDIO] :
2498 st_index[AVMEDIA_TYPE_VIDEO]),
2501 dump_format(ic, 0, is->filename, 0);
2504 /* open the streams */
2505 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2506 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2510 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2511 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2513 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2515 if (!display_disable)
2519 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2520 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2523 if (is->video_stream < 0 && is->audio_stream < 0) {
2524 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2530 if (is->abort_request)
2532 if (is->paused != is->last_paused) {
2533 is->last_paused = is->paused;
2535 is->read_pause_return= av_read_pause(ic);
2539 #if CONFIG_RTSP_DEMUXER
2540 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2541 /* wait 10 ms to avoid trying to get another packet */
2548 int64_t seek_target= is->seek_pos;
2549 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2550 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2551 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2552 // of the seek_pos/seek_rel variables
2554 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2556 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2558 if (is->audio_stream >= 0) {
2559 packet_queue_flush(&is->audioq);
2560 packet_queue_put(&is->audioq, &flush_pkt);
2562 if (is->subtitle_stream >= 0) {
2563 packet_queue_flush(&is->subtitleq);
2564 packet_queue_put(&is->subtitleq, &flush_pkt);
2566 if (is->video_stream >= 0) {
2567 packet_queue_flush(&is->videoq);
2568 packet_queue_put(&is->videoq, &flush_pkt);
2575 /* if the queue are full, no need to read more */
2576 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2577 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2578 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2579 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2585 if(is->video_stream >= 0){
2586 av_init_packet(pkt);
2589 pkt->stream_index= is->video_stream;
2590 packet_queue_put(&is->videoq, pkt);
2593 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2594 if(loop!=1 && (!loop || --loop)){
2595 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2603 ret = av_read_frame(ic, pkt);
2605 if (ret == AVERROR_EOF || url_feof(ic->pb))
2607 if (url_ferror(ic->pb))
2609 SDL_Delay(100); /* wait for user event */
2612 /* check if packet is in play range specified by user, then queue, otherwise discard */
2613 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2614 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2615 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2616 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2617 <= ((double)duration/1000000);
2618 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2619 packet_queue_put(&is->audioq, pkt);
2620 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2621 packet_queue_put(&is->videoq, pkt);
2622 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2623 packet_queue_put(&is->subtitleq, pkt);
2625 av_free_packet(pkt);
2628 /* wait until the end */
2629 while (!is->abort_request) {
2635 /* disable interrupting */
2636 global_video_state = NULL;
2638 /* close each stream */
2639 if (is->audio_stream >= 0)
2640 stream_component_close(is, is->audio_stream);
2641 if (is->video_stream >= 0)
2642 stream_component_close(is, is->video_stream);
2643 if (is->subtitle_stream >= 0)
2644 stream_component_close(is, is->subtitle_stream);
2646 av_close_input_file(is->ic);
2647 is->ic = NULL; /* safety */
2649 url_set_interrupt_cb(NULL);
2654 event.type = FF_QUIT_EVENT;
2655 event.user.data1 = is;
2656 SDL_PushEvent(&event);
2661 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2665 is = av_mallocz(sizeof(VideoState));
2668 av_strlcpy(is->filename, filename, sizeof(is->filename));
2669 is->iformat = iformat;
2673 /* start video display */
2674 is->pictq_mutex = SDL_CreateMutex();
2675 is->pictq_cond = SDL_CreateCond();
2677 is->subpq_mutex = SDL_CreateMutex();
2678 is->subpq_cond = SDL_CreateCond();
2680 is->av_sync_type = av_sync_type;
2681 is->parse_tid = SDL_CreateThread(decode_thread, is);
2682 if (!is->parse_tid) {
2689 static void stream_cycle_channel(VideoState *is, int codec_type)
2691 AVFormatContext *ic = is->ic;
2692 int start_index, stream_index;
2695 if (codec_type == AVMEDIA_TYPE_VIDEO)
2696 start_index = is->video_stream;
2697 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2698 start_index = is->audio_stream;
2700 start_index = is->subtitle_stream;
2701 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2703 stream_index = start_index;
2705 if (++stream_index >= is->ic->nb_streams)
2707 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2714 if (stream_index == start_index)
2716 st = ic->streams[stream_index];
2717 if (st->codec->codec_type == codec_type) {
2718 /* check that parameters are OK */
2719 switch(codec_type) {
2720 case AVMEDIA_TYPE_AUDIO:
2721 if (st->codec->sample_rate != 0 &&
2722 st->codec->channels != 0)
2725 case AVMEDIA_TYPE_VIDEO:
2726 case AVMEDIA_TYPE_SUBTITLE:
2734 stream_component_close(is, start_index);
2735 stream_component_open(is, stream_index);
2739 static void toggle_full_screen(void)
2741 is_full_screen = !is_full_screen;
2742 if (!fs_screen_width) {
2743 /* use default SDL method */
2744 // SDL_WM_ToggleFullScreen(screen);
2746 video_open(cur_stream);
2749 static void toggle_pause(void)
2752 stream_pause(cur_stream);
2756 static void step_to_next_frame(void)
2759 /* if the stream is paused unpause it, then step */
2760 if (cur_stream->paused)
2761 stream_pause(cur_stream);
2766 static void toggle_audio_display(void)
2769 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2770 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2771 fill_rectangle(screen,
2772 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2774 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2778 /* handle an event sent by the GUI */
2779 static void event_loop(void)
2782 double incr, pos, frac;
2786 SDL_WaitEvent(&event);
2787 switch(event.type) {
2789 if (exit_on_keydown) {
2793 switch(event.key.keysym.sym) {
2799 toggle_full_screen();
2805 case SDLK_s: //S: Step to next frame
2806 step_to_next_frame();
2810 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2814 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2818 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2821 toggle_audio_display();
2836 if (seek_by_bytes) {
2837 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2838 pos= cur_stream->video_current_pos;
2839 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2840 pos= cur_stream->audio_pkt.pos;
2842 pos = url_ftell(cur_stream->ic->pb);
2843 if (cur_stream->ic->bit_rate)
2844 incr *= cur_stream->ic->bit_rate / 8.0;
2848 stream_seek(cur_stream, pos, incr, 1);
2850 pos = get_master_clock(cur_stream);
2852 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2860 case SDL_MOUSEBUTTONDOWN:
2861 if (exit_on_mousedown) {
2865 case SDL_MOUSEMOTION:
2866 if(event.type ==SDL_MOUSEBUTTONDOWN){
2869 if(event.motion.state != SDL_PRESSED)
2874 if(seek_by_bytes || cur_stream->ic->duration<=0){
2875 uint64_t size= url_fsize(cur_stream->ic->pb);
2876 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2880 int tns, thh, tmm, tss;
2881 tns = cur_stream->ic->duration/1000000LL;
2883 tmm = (tns%3600)/60;
2885 frac = x/cur_stream->width;
2890 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2891 hh, mm, ss, thh, tmm, tss);
2892 ts = frac*cur_stream->ic->duration;
2893 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2894 ts += cur_stream->ic->start_time;
2895 stream_seek(cur_stream, ts, 0, 0);
2899 case SDL_VIDEORESIZE:
2901 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2902 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2903 screen_width = cur_stream->width = event.resize.w;
2904 screen_height= cur_stream->height= event.resize.h;
2911 case FF_ALLOC_EVENT:
2912 video_open(event.user.data1);
2913 alloc_picture(event.user.data1);
2915 case FF_REFRESH_EVENT:
2916 video_refresh_timer(event.user.data1);
2917 cur_stream->refresh=0;
2925 static void opt_frame_size(const char *arg)
2927 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2928 fprintf(stderr, "Incorrect frame size\n");
2931 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2932 fprintf(stderr, "Frame size must be a multiple of 2\n");
2937 static int opt_width(const char *opt, const char *arg)
2939 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2943 static int opt_height(const char *opt, const char *arg)
2945 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2949 static void opt_format(const char *arg)
2951 file_iformat = av_find_input_format(arg);
2952 if (!file_iformat) {
2953 fprintf(stderr, "Unknown input format: %s\n", arg);
2958 static void opt_frame_pix_fmt(const char *arg)
2960 frame_pix_fmt = av_get_pix_fmt(arg);
2963 static int opt_sync(const char *opt, const char *arg)
2965 if (!strcmp(arg, "audio"))
2966 av_sync_type = AV_SYNC_AUDIO_MASTER;
2967 else if (!strcmp(arg, "video"))
2968 av_sync_type = AV_SYNC_VIDEO_MASTER;
2969 else if (!strcmp(arg, "ext"))
2970 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2972 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2978 static int opt_seek(const char *opt, const char *arg)
2980 start_time = parse_time_or_die(opt, arg, 1);
2984 static int opt_duration(const char *opt, const char *arg)
2986 duration = parse_time_or_die(opt, arg, 1);
2990 static int opt_debug(const char *opt, const char *arg)
2992 av_log_set_level(99);
2993 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2997 static int opt_vismv(const char *opt, const char *arg)
2999 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
3003 static int opt_thread_count(const char *opt, const char *arg)
3005 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3007 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3012 static const OptionDef options[] = {
3013 #include "cmdutils_common_opts.h"
3014 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3015 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3016 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3017 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3018 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3019 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3020 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3021 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3022 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3023 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3024 { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
3025 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3026 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3027 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3028 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3029 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3030 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3031 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3032 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3033 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3034 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3035 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3036 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3037 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3038 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3039 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3040 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
3041 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
3042 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
3043 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3044 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3045 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3046 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3047 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3048 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3049 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3050 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3052 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3054 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3055 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3059 static void show_usage(void)
3061 printf("Simple media player\n");
3062 printf("usage: ffplay [options] input_file\n");
3066 static void show_help(void)
3068 av_log_set_callback(log_callback_help);
3070 show_help_options(options, "Main options:\n",
3072 show_help_options(options, "\nAdvanced options:\n",
3073 OPT_EXPERT, OPT_EXPERT);
3075 av_opt_show2(avcodec_opts[0], NULL,
3076 AV_OPT_FLAG_DECODING_PARAM, 0);
3078 av_opt_show2(avformat_opts, NULL,
3079 AV_OPT_FLAG_DECODING_PARAM, 0);
3080 #if !CONFIG_AVFILTER
3082 av_opt_show2(sws_opts, NULL,
3083 AV_OPT_FLAG_ENCODING_PARAM, 0);
3085 printf("\nWhile playing:\n"
3087 "f toggle full screen\n"
3089 "a cycle audio channel\n"
3090 "v cycle video channel\n"
3091 "t cycle subtitle channel\n"
3092 "w show audio waves\n"
3093 "s activate frame-step mode\n"
3094 "left/right seek backward/forward 10 seconds\n"
3095 "down/up seek backward/forward 1 minute\n"
3096 "mouse click seek to percentage in file corresponding to fraction of width\n"
3100 static void opt_input_file(const char *filename)
3102 if (input_filename) {
3103 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3104 filename, input_filename);
3107 if (!strcmp(filename, "-"))
3109 input_filename = filename;
3112 /* Called from the main */
3113 int main(int argc, char **argv)
3117 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3119 /* register all codecs, demux and protocols */
3120 avcodec_register_all();
3122 avdevice_register_all();
3125 avfilter_register_all();
3133 parse_options(argc, argv, options, opt_input_file);
3135 if (!input_filename) {
3137 fprintf(stderr, "An input file must be specified\n");
3138 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3142 if (display_disable) {
3145 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3146 #if !defined(__MINGW32__) && !defined(__APPLE__)
3147 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3149 if (SDL_Init (flags)) {
3150 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3154 if (!display_disable) {
3155 #if HAVE_SDL_VIDEO_SIZE
3156 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3157 fs_screen_width = vi->current_w;
3158 fs_screen_height = vi->current_h;
3162 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3163 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3164 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3166 av_init_packet(&flush_pkt);
3167 flush_pkt.data= "FLUSH";
3169 cur_stream = stream_open(input_filename, file_iformat);