2 * FFplay : Simple Media Player based on the FFmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/avstring.h"
27 #include "libavutil/pixdesc.h"
28 #include "libavformat/avformat.h"
29 #include "libavdevice/avdevice.h"
30 #include "libswscale/swscale.h"
31 #include "libavcodec/audioconvert.h"
32 #include "libavcodec/colorspace.h"
33 #include "libavcodec/opt.h"
34 #include "libavcodec/avfft.h"
37 # include "libavfilter/avfilter.h"
38 # include "libavfilter/avfiltergraph.h"
39 # include "libavfilter/graphparser.h"
45 #include <SDL_thread.h>
48 #undef main /* We don't want SDL to override our main() */
54 const char program_name[] = "FFplay";
55 const int program_birth_year = 2003;
59 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
60 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
63 /* SDL audio buffer size, in samples. Should be small to have precise
64 A/V sync as SDL does not have hardware buffer fullness info. */
65 #define SDL_AUDIO_BUFFER_SIZE 1024
67 /* no AV sync correction is done if below the AV sync threshold */
68 #define AV_SYNC_THRESHOLD 0.01
69 /* no AV correction is done if too big error */
70 #define AV_NOSYNC_THRESHOLD 10.0
72 #define FRAME_SKIP_FACTOR 0.05
74 /* maximum audio speed change to get correct sync */
75 #define SAMPLE_CORRECTION_PERCENT_MAX 10
77 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
78 #define AUDIO_DIFF_AVG_NB 20
80 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
81 #define SAMPLE_ARRAY_SIZE (2*65536)
83 static int sws_flags = SWS_BICUBIC;
85 typedef struct PacketQueue {
86 AVPacketList *first_pkt, *last_pkt;
94 #define VIDEO_PICTURE_QUEUE_SIZE 2
95 #define SUBPICTURE_QUEUE_SIZE 4
97 typedef struct VideoPicture {
98 double pts; ///<presentation time stamp for this picture
99 double target_clock; ///<av_gettime() time at which this should be displayed ideally
100 int64_t pos; ///<byte position in file
102 int width, height; /* source height & width */
104 enum PixelFormat pix_fmt;
107 AVFilterPicRef *picref;
111 typedef struct SubPicture {
112 double pts; /* presentation time stamp for this picture */
117 AV_SYNC_AUDIO_MASTER, /* default choice */
118 AV_SYNC_VIDEO_MASTER,
119 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
122 typedef struct VideoState {
123 SDL_Thread *parse_tid;
124 SDL_Thread *video_tid;
125 SDL_Thread *refresh_tid;
126 AVInputFormat *iformat;
135 int read_pause_return;
137 int dtg_active_format;
142 double external_clock; /* external clock base */
143 int64_t external_clock_time;
146 double audio_diff_cum; /* used for AV difference average computation */
147 double audio_diff_avg_coef;
148 double audio_diff_threshold;
149 int audio_diff_avg_count;
152 int audio_hw_buf_size;
153 /* samples output by the codec. we reserve more space for avsync
155 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
156 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
158 unsigned int audio_buf_size; /* in bytes */
159 int audio_buf_index; /* in bytes */
160 AVPacket audio_pkt_temp;
162 enum SampleFormat audio_src_fmt;
163 AVAudioConvert *reformat_ctx;
165 int show_audio; /* if true, display audio samples */
166 int16_t sample_array[SAMPLE_ARRAY_SIZE];
167 int sample_array_index;
173 SDL_Thread *subtitle_tid;
175 int subtitle_stream_changed;
176 AVStream *subtitle_st;
177 PacketQueue subtitleq;
178 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
179 int subpq_size, subpq_rindex, subpq_windex;
180 SDL_mutex *subpq_mutex;
181 SDL_cond *subpq_cond;
184 double frame_last_pts;
185 double frame_last_delay;
186 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
190 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
191 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
192 int64_t video_current_pos; ///<current displayed file pos
193 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
194 int pictq_size, pictq_rindex, pictq_windex;
195 SDL_mutex *pictq_mutex;
196 SDL_cond *pictq_cond;
198 struct SwsContext *img_convert_ctx;
201 // QETimer *video_timer;
203 int width, height, xleft, ytop;
207 int64_t last_dts_for_fault_detection;
208 int64_t last_pts_for_fault_detection;
211 AVFilterContext *out_video_filter; ///<the last filter in the video chain
215 float skip_frames_index;
219 static void show_help(void);
220 static int audio_write_get_buf_size(VideoState *is);
222 /* options specified by the user */
223 static AVInputFormat *file_iformat;
224 static const char *input_filename;
225 static const char *window_title;
226 static int fs_screen_width;
227 static int fs_screen_height;
228 static int screen_width = 0;
229 static int screen_height = 0;
230 static int frame_width = 0;
231 static int frame_height = 0;
232 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
233 static int audio_disable;
234 static int video_disable;
235 static int wanted_stream[AVMEDIA_TYPE_NB]={
236 [AVMEDIA_TYPE_AUDIO]=-1,
237 [AVMEDIA_TYPE_VIDEO]=-1,
238 [AVMEDIA_TYPE_SUBTITLE]=-1,
240 static int seek_by_bytes=-1;
241 static int display_disable;
242 static int show_status = 1;
243 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
244 static int64_t start_time = AV_NOPTS_VALUE;
245 static int64_t duration = AV_NOPTS_VALUE;
246 static int debug = 0;
247 static int debug_mv = 0;
249 static int thread_count = 1;
250 static int workaround_bugs = 1;
252 static int genpts = 0;
253 static int lowres = 0;
254 static int idct = FF_IDCT_AUTO;
255 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
256 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
257 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
258 static int error_recognition = FF_ER_CAREFUL;
259 static int error_concealment = 3;
260 static int decoder_reorder_pts= -1;
263 static int framedrop=1;
265 static int rdftspeed=20;
267 static char *vfilters = NULL;
270 /* current context */
271 static int is_full_screen;
272 static VideoState *cur_stream;
273 static int64_t audio_callback_time;
275 static AVPacket flush_pkt;
277 #define FF_ALLOC_EVENT (SDL_USEREVENT)
278 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
279 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
281 static SDL_Surface *screen;
283 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
285 /* packet queue handling */
286 static void packet_queue_init(PacketQueue *q)
288 memset(q, 0, sizeof(PacketQueue));
289 q->mutex = SDL_CreateMutex();
290 q->cond = SDL_CreateCond();
291 packet_queue_put(q, &flush_pkt);
294 static void packet_queue_flush(PacketQueue *q)
296 AVPacketList *pkt, *pkt1;
298 SDL_LockMutex(q->mutex);
299 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
301 av_free_packet(&pkt->pkt);
308 SDL_UnlockMutex(q->mutex);
311 static void packet_queue_end(PacketQueue *q)
313 packet_queue_flush(q);
314 SDL_DestroyMutex(q->mutex);
315 SDL_DestroyCond(q->cond);
318 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
322 /* duplicate the packet */
323 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
326 pkt1 = av_malloc(sizeof(AVPacketList));
333 SDL_LockMutex(q->mutex);
339 q->last_pkt->next = pkt1;
342 q->size += pkt1->pkt.size + sizeof(*pkt1);
343 /* XXX: should duplicate packet data in DV case */
344 SDL_CondSignal(q->cond);
346 SDL_UnlockMutex(q->mutex);
350 static void packet_queue_abort(PacketQueue *q)
352 SDL_LockMutex(q->mutex);
354 q->abort_request = 1;
356 SDL_CondSignal(q->cond);
358 SDL_UnlockMutex(q->mutex);
361 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
362 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
367 SDL_LockMutex(q->mutex);
370 if (q->abort_request) {
377 q->first_pkt = pkt1->next;
381 q->size -= pkt1->pkt.size + sizeof(*pkt1);
390 SDL_CondWait(q->cond, q->mutex);
393 SDL_UnlockMutex(q->mutex);
397 static inline void fill_rectangle(SDL_Surface *screen,
398 int x, int y, int w, int h, int color)
405 SDL_FillRect(screen, &rect, color);
409 /* draw only the border of a rectangle */
410 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
414 /* fill the background */
418 w2 = s->width - (x + w);
424 h2 = s->height - (y + h);
427 fill_rectangle(screen,
431 fill_rectangle(screen,
432 s->xleft + s->width - w2, s->ytop,
435 fill_rectangle(screen,
436 s->xleft + w1, s->ytop,
437 s->width - w1 - w2, h1,
439 fill_rectangle(screen,
440 s->xleft + w1, s->ytop + s->height - h2,
441 s->width - w1 - w2, h2,
446 #define ALPHA_BLEND(a, oldp, newp, s)\
447 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
449 #define RGBA_IN(r, g, b, a, s)\
451 unsigned int v = ((const uint32_t *)(s))[0];\
452 a = (v >> 24) & 0xff;\
453 r = (v >> 16) & 0xff;\
454 g = (v >> 8) & 0xff;\
458 #define YUVA_IN(y, u, v, a, s, pal)\
460 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
461 a = (val >> 24) & 0xff;\
462 y = (val >> 16) & 0xff;\
463 u = (val >> 8) & 0xff;\
467 #define YUVA_OUT(d, y, u, v, a)\
469 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
475 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
477 int wrap, wrap3, width2, skip2;
478 int y, u, v, a, u1, v1, a1, w, h;
479 uint8_t *lum, *cb, *cr;
482 int dstx, dsty, dstw, dsth;
484 dstw = av_clip(rect->w, 0, imgw);
485 dsth = av_clip(rect->h, 0, imgh);
486 dstx = av_clip(rect->x, 0, imgw - dstw);
487 dsty = av_clip(rect->y, 0, imgh - dsth);
488 lum = dst->data[0] + dsty * dst->linesize[0];
489 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
490 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
492 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
494 wrap = dst->linesize[0];
495 wrap3 = rect->pict.linesize[0];
496 p = rect->pict.data[0];
497 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
505 YUVA_IN(y, u, v, a, p, pal);
506 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
507 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
508 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
514 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
515 YUVA_IN(y, u, v, a, p, pal);
519 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
521 YUVA_IN(y, u, v, a, p + BPP, pal);
525 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
526 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
527 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
534 YUVA_IN(y, u, v, a, p, pal);
535 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
536 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
537 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
541 p += wrap3 - dstw * BPP;
542 lum += wrap - dstw - dstx;
543 cb += dst->linesize[1] - width2 - skip2;
544 cr += dst->linesize[2] - width2 - skip2;
546 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
552 YUVA_IN(y, u, v, a, p, pal);
556 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
559 YUVA_IN(y, u, v, a, p, pal);
563 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
564 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
565 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
571 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
572 YUVA_IN(y, u, v, a, p, pal);
576 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
578 YUVA_IN(y, u, v, a, p + BPP, pal);
582 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
586 YUVA_IN(y, u, v, a, p, pal);
590 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
592 YUVA_IN(y, u, v, a, p + BPP, pal);
596 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
598 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
599 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
603 p += -wrap3 + 2 * BPP;
607 YUVA_IN(y, u, v, a, p, pal);
611 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
614 YUVA_IN(y, u, v, a, p, pal);
618 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
619 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
620 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
626 p += wrap3 + (wrap3 - dstw * BPP);
627 lum += wrap + (wrap - dstw - dstx);
628 cb += dst->linesize[1] - width2 - skip2;
629 cr += dst->linesize[2] - width2 - skip2;
631 /* handle odd height */
638 YUVA_IN(y, u, v, a, p, pal);
639 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
640 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
641 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
647 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
648 YUVA_IN(y, u, v, a, p, pal);
652 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
654 YUVA_IN(y, u, v, a, p + BPP, pal);
658 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
659 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
660 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
667 YUVA_IN(y, u, v, a, p, pal);
668 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
669 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
670 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
675 static void free_subpicture(SubPicture *sp)
679 for (i = 0; i < sp->sub.num_rects; i++)
681 av_freep(&sp->sub.rects[i]->pict.data[0]);
682 av_freep(&sp->sub.rects[i]->pict.data[1]);
683 av_freep(&sp->sub.rects[i]);
686 av_free(sp->sub.rects);
688 memset(&sp->sub, 0, sizeof(AVSubtitle));
691 static void video_image_display(VideoState *is)
697 int width, height, x, y;
701 vp = &is->pictq[is->pictq_rindex];
704 if (vp->picref->pixel_aspect.num == 0)
707 aspect_ratio = av_q2d(vp->picref->pixel_aspect);
710 /* XXX: use variable in the frame */
711 if (is->video_st->sample_aspect_ratio.num)
712 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
713 else if (is->video_st->codec->sample_aspect_ratio.num)
714 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
718 if (aspect_ratio <= 0.0)
720 aspect_ratio *= (float)vp->width / (float)vp->height;
721 /* if an active format is indicated, then it overrides the
724 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
725 is->dtg_active_format = is->video_st->codec->dtg_active_format;
726 printf("dtg_active_format=%d\n", is->dtg_active_format);
730 switch(is->video_st->codec->dtg_active_format) {
731 case FF_DTG_AFD_SAME:
736 aspect_ratio = 4.0 / 3.0;
738 case FF_DTG_AFD_16_9:
739 aspect_ratio = 16.0 / 9.0;
741 case FF_DTG_AFD_14_9:
742 aspect_ratio = 14.0 / 9.0;
744 case FF_DTG_AFD_4_3_SP_14_9:
745 aspect_ratio = 14.0 / 9.0;
747 case FF_DTG_AFD_16_9_SP_14_9:
748 aspect_ratio = 14.0 / 9.0;
750 case FF_DTG_AFD_SP_4_3:
751 aspect_ratio = 4.0 / 3.0;
758 if (is->subpq_size > 0)
760 sp = &is->subpq[is->subpq_rindex];
762 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
764 SDL_LockYUVOverlay (vp->bmp);
766 pict.data[0] = vp->bmp->pixels[0];
767 pict.data[1] = vp->bmp->pixels[2];
768 pict.data[2] = vp->bmp->pixels[1];
770 pict.linesize[0] = vp->bmp->pitches[0];
771 pict.linesize[1] = vp->bmp->pitches[2];
772 pict.linesize[2] = vp->bmp->pitches[1];
774 for (i = 0; i < sp->sub.num_rects; i++)
775 blend_subrect(&pict, sp->sub.rects[i],
776 vp->bmp->w, vp->bmp->h);
778 SDL_UnlockYUVOverlay (vp->bmp);
784 /* XXX: we suppose the screen has a 1.0 pixel ratio */
786 width = ((int)rint(height * aspect_ratio)) & ~1;
787 if (width > is->width) {
789 height = ((int)rint(width / aspect_ratio)) & ~1;
791 x = (is->width - width) / 2;
792 y = (is->height - height) / 2;
793 if (!is->no_background) {
794 /* fill the background */
795 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
797 is->no_background = 0;
799 rect.x = is->xleft + x;
800 rect.y = is->ytop + y;
803 SDL_DisplayYUVOverlay(vp->bmp, &rect);
806 fill_rectangle(screen,
807 is->xleft, is->ytop, is->width, is->height,
808 QERGB(0x00, 0x00, 0x00));
813 static inline int compute_mod(int a, int b)
822 static void video_audio_display(VideoState *s)
824 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
825 int ch, channels, h, h2, bgcolor, fgcolor;
827 int rdft_bits, nb_freq;
829 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
831 nb_freq= 1<<(rdft_bits-1);
833 /* compute display index : center on currently output samples */
834 channels = s->audio_st->codec->channels;
835 nb_display_channels = channels;
837 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
839 delay = audio_write_get_buf_size(s);
842 /* to be more precise, we take into account the time spent since
843 the last buffer computation */
844 if (audio_callback_time) {
845 time_diff = av_gettime() - audio_callback_time;
846 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
849 delay += 2*data_used;
850 if (delay < data_used)
853 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
854 if(s->show_audio==1){
856 for(i=0; i<1000; i+=channels){
857 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
858 int a= s->sample_array[idx];
859 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
860 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
861 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
863 if(h<score && (b^c)<0){
870 s->last_i_start = i_start;
872 i_start = s->last_i_start;
875 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
876 if(s->show_audio==1){
877 fill_rectangle(screen,
878 s->xleft, s->ytop, s->width, s->height,
881 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
883 /* total height for one channel */
884 h = s->height / nb_display_channels;
885 /* graph height / 2 */
887 for(ch = 0;ch < nb_display_channels; ch++) {
889 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
890 for(x = 0; x < s->width; x++) {
891 y = (s->sample_array[i] * h2) >> 15;
898 fill_rectangle(screen,
899 s->xleft + x, ys, 1, y,
902 if (i >= SAMPLE_ARRAY_SIZE)
903 i -= SAMPLE_ARRAY_SIZE;
907 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
909 for(ch = 1;ch < nb_display_channels; ch++) {
910 y = s->ytop + ch * h;
911 fill_rectangle(screen,
912 s->xleft, y, s->width, 1,
915 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
917 nb_display_channels= FFMIN(nb_display_channels, 2);
918 if(rdft_bits != s->rdft_bits){
919 av_rdft_end(s->rdft);
920 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
921 s->rdft_bits= rdft_bits;
924 FFTSample data[2][2*nb_freq];
925 for(ch = 0;ch < nb_display_channels; ch++) {
927 for(x = 0; x < 2*nb_freq; x++) {
928 double w= (x-nb_freq)*(1.0/nb_freq);
929 data[ch][x]= s->sample_array[i]*(1.0-w*w);
931 if (i >= SAMPLE_ARRAY_SIZE)
932 i -= SAMPLE_ARRAY_SIZE;
934 av_rdft_calc(s->rdft, data[ch]);
936 //least efficient way to do this, we should of course directly access it but its more than fast enough
937 for(y=0; y<s->height; y++){
938 double w= 1/sqrt(nb_freq);
939 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]));
940 int b= sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0] + data[1][2*y+1]*data[1][2*y+1]));
943 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
945 fill_rectangle(screen,
946 s->xpos, s->height-y, 1, 1,
950 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
952 if(s->xpos >= s->width)
957 static int video_open(VideoState *is){
958 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
961 if(is_full_screen) flags |= SDL_FULLSCREEN;
962 else flags |= SDL_RESIZABLE;
964 if (is_full_screen && fs_screen_width) {
966 h = fs_screen_height;
967 } else if(!is_full_screen && screen_width){
971 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
972 w = is->out_video_filter->inputs[0]->w;
973 h = is->out_video_filter->inputs[0]->h;
975 }else if (is->video_st && is->video_st->codec->width){
976 w = is->video_st->codec->width;
977 h = is->video_st->codec->height;
983 if(screen && is->width == screen->w && screen->w == w
984 && is->height== screen->h && screen->h == h)
988 screen = SDL_SetVideoMode(w, h, 0, flags);
990 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
991 screen = SDL_SetVideoMode(w, h, 24, flags);
994 fprintf(stderr, "SDL: could not set video mode - exiting\n");
998 window_title = input_filename;
999 SDL_WM_SetCaption(window_title, window_title);
1001 is->width = screen->w;
1002 is->height = screen->h;
1007 /* display the current picture, if any */
1008 static void video_display(VideoState *is)
1011 video_open(cur_stream);
1012 if (is->audio_st && is->show_audio)
1013 video_audio_display(is);
1014 else if (is->video_st)
1015 video_image_display(is);
1018 static int refresh_thread(void *opaque)
1020 VideoState *is= opaque;
1021 while(!is->abort_request){
1023 event.type = FF_REFRESH_EVENT;
1024 event.user.data1 = opaque;
1027 SDL_PushEvent(&event);
1029 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
1034 /* get the current audio clock value */
1035 static double get_audio_clock(VideoState *is)
1038 int hw_buf_size, bytes_per_sec;
1039 pts = is->audio_clock;
1040 hw_buf_size = audio_write_get_buf_size(is);
1043 bytes_per_sec = is->audio_st->codec->sample_rate *
1044 2 * is->audio_st->codec->channels;
1047 pts -= (double)hw_buf_size / bytes_per_sec;
1051 /* get the current video clock value */
1052 static double get_video_clock(VideoState *is)
1055 return is->video_current_pts;
1057 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1061 /* get the current external clock value */
1062 static double get_external_clock(VideoState *is)
1066 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1069 /* get the current master clock value */
1070 static double get_master_clock(VideoState *is)
1074 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1076 val = get_video_clock(is);
1078 val = get_audio_clock(is);
1079 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1081 val = get_audio_clock(is);
1083 val = get_video_clock(is);
1085 val = get_external_clock(is);
1090 /* seek in the stream */
1091 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1093 if (!is->seek_req) {
1096 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1098 is->seek_flags |= AVSEEK_FLAG_BYTE;
1103 /* pause or resume the video */
1104 static void stream_pause(VideoState *is)
1107 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1108 if(is->read_pause_return != AVERROR(ENOSYS)){
1109 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1111 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1113 is->paused = !is->paused;
1116 static double compute_target_time(double frame_current_pts, VideoState *is)
1118 double delay, sync_threshold, diff;
1120 /* compute nominal delay */
1121 delay = frame_current_pts - is->frame_last_pts;
1122 if (delay <= 0 || delay >= 10.0) {
1123 /* if incorrect delay, use previous one */
1124 delay = is->frame_last_delay;
1126 is->frame_last_delay = delay;
1128 is->frame_last_pts = frame_current_pts;
1130 /* update delay to follow master synchronisation source */
1131 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1132 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1133 /* if video is slave, we try to correct big delays by
1134 duplicating or deleting a frame */
1135 diff = get_video_clock(is) - get_master_clock(is);
1137 /* skip or repeat frame. We take into account the
1138 delay to compute the threshold. I still don't know
1139 if it is the best guess */
1140 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1141 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1142 if (diff <= -sync_threshold)
1144 else if (diff >= sync_threshold)
1148 is->frame_timer += delay;
1149 #if defined(DEBUG_SYNC)
1150 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1151 delay, actual_delay, frame_current_pts, -diff);
1154 return is->frame_timer;
1157 /* called to display each frame */
1158 static void video_refresh_timer(void *opaque)
1160 VideoState *is = opaque;
1163 SubPicture *sp, *sp2;
1167 if (is->pictq_size == 0) {
1168 //nothing to do, no picture to display in the que
1170 double time= av_gettime()/1000000.0;
1172 /* dequeue the picture */
1173 vp = &is->pictq[is->pictq_rindex];
1175 if(time < vp->target_clock)
1177 /* update current video pts */
1178 is->video_current_pts = vp->pts;
1179 is->video_current_pts_drift = is->video_current_pts - time;
1180 is->video_current_pos = vp->pos;
1181 if(is->pictq_size > 1){
1182 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1183 assert(nextvp->target_clock >= vp->target_clock);
1184 next_target= nextvp->target_clock;
1186 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1188 if(framedrop && time > next_target){
1189 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1190 if(is->pictq_size > 1 || time > next_target + 0.5){
1191 /* update queue size and signal for next picture */
1192 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1193 is->pictq_rindex = 0;
1195 SDL_LockMutex(is->pictq_mutex);
1197 SDL_CondSignal(is->pictq_cond);
1198 SDL_UnlockMutex(is->pictq_mutex);
1203 if(is->subtitle_st) {
1204 if (is->subtitle_stream_changed) {
1205 SDL_LockMutex(is->subpq_mutex);
1207 while (is->subpq_size) {
1208 free_subpicture(&is->subpq[is->subpq_rindex]);
1210 /* update queue size and signal for next picture */
1211 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1212 is->subpq_rindex = 0;
1216 is->subtitle_stream_changed = 0;
1218 SDL_CondSignal(is->subpq_cond);
1219 SDL_UnlockMutex(is->subpq_mutex);
1221 if (is->subpq_size > 0) {
1222 sp = &is->subpq[is->subpq_rindex];
1224 if (is->subpq_size > 1)
1225 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1229 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1230 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1232 free_subpicture(sp);
1234 /* update queue size and signal for next picture */
1235 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1236 is->subpq_rindex = 0;
1238 SDL_LockMutex(is->subpq_mutex);
1240 SDL_CondSignal(is->subpq_cond);
1241 SDL_UnlockMutex(is->subpq_mutex);
1247 /* display picture */
1250 /* update queue size and signal for next picture */
1251 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1252 is->pictq_rindex = 0;
1254 SDL_LockMutex(is->pictq_mutex);
1256 SDL_CondSignal(is->pictq_cond);
1257 SDL_UnlockMutex(is->pictq_mutex);
1259 } else if (is->audio_st) {
1260 /* draw the next audio frame */
1262 /* if only audio stream, then display the audio bars (better
1263 than nothing, just to test the implementation */
1265 /* display picture */
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->faulty_dts, is->faulty_pts);
1291 last_time = cur_time;
1296 /* allocate a picture (needs to do that in main thread to avoid
1297 potential locking problems */
1298 static void alloc_picture(void *opaque)
1300 VideoState *is = opaque;
1303 vp = &is->pictq[is->pictq_windex];
1306 SDL_FreeYUVOverlay(vp->bmp);
1310 avfilter_unref_pic(vp->picref);
1313 vp->width = is->out_video_filter->inputs[0]->w;
1314 vp->height = is->out_video_filter->inputs[0]->h;
1315 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1317 vp->width = is->video_st->codec->width;
1318 vp->height = is->video_st->codec->height;
1319 vp->pix_fmt = is->video_st->codec->pix_fmt;
1322 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1326 SDL_LockMutex(is->pictq_mutex);
1328 SDL_CondSignal(is->pictq_cond);
1329 SDL_UnlockMutex(is->pictq_mutex);
1334 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1336 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1343 /* wait until we have space to put a new picture */
1344 SDL_LockMutex(is->pictq_mutex);
1346 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1347 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1349 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1350 !is->videoq.abort_request) {
1351 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1353 SDL_UnlockMutex(is->pictq_mutex);
1355 if (is->videoq.abort_request)
1358 vp = &is->pictq[is->pictq_windex];
1360 /* alloc or resize hardware picture buffer */
1363 vp->width != is->out_video_filter->inputs[0]->w ||
1364 vp->height != is->out_video_filter->inputs[0]->h) {
1366 vp->width != is->video_st->codec->width ||
1367 vp->height != is->video_st->codec->height) {
1373 /* the allocation must be done in the main thread to avoid
1375 event.type = FF_ALLOC_EVENT;
1376 event.user.data1 = is;
1377 SDL_PushEvent(&event);
1379 /* wait until the picture is allocated */
1380 SDL_LockMutex(is->pictq_mutex);
1381 while (!vp->allocated && !is->videoq.abort_request) {
1382 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1384 SDL_UnlockMutex(is->pictq_mutex);
1386 if (is->videoq.abort_request)
1390 /* if the frame is not skipped, then display it */
1395 avfilter_unref_pic(vp->picref);
1396 vp->picref = src_frame->opaque;
1399 /* get a pointer on the bitmap */
1400 SDL_LockYUVOverlay (vp->bmp);
1402 dst_pix_fmt = PIX_FMT_YUV420P;
1403 memset(&pict,0,sizeof(AVPicture));
1404 pict.data[0] = vp->bmp->pixels[0];
1405 pict.data[1] = vp->bmp->pixels[2];
1406 pict.data[2] = vp->bmp->pixels[1];
1408 pict.linesize[0] = vp->bmp->pitches[0];
1409 pict.linesize[1] = vp->bmp->pitches[2];
1410 pict.linesize[2] = vp->bmp->pitches[1];
1413 pict_src.data[0] = src_frame->data[0];
1414 pict_src.data[1] = src_frame->data[1];
1415 pict_src.data[2] = src_frame->data[2];
1417 pict_src.linesize[0] = src_frame->linesize[0];
1418 pict_src.linesize[1] = src_frame->linesize[1];
1419 pict_src.linesize[2] = src_frame->linesize[2];
1421 //FIXME use direct rendering
1422 av_picture_copy(&pict, &pict_src,
1423 vp->pix_fmt, vp->width, vp->height);
1425 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1426 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1427 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1428 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1429 if (is->img_convert_ctx == NULL) {
1430 fprintf(stderr, "Cannot initialize the conversion context\n");
1433 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1434 0, vp->height, pict.data, pict.linesize);
1436 /* update the bitmap content */
1437 SDL_UnlockYUVOverlay(vp->bmp);
1442 /* now we can update the picture count */
1443 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1444 is->pictq_windex = 0;
1445 SDL_LockMutex(is->pictq_mutex);
1446 vp->target_clock= compute_target_time(vp->pts, is);
1449 SDL_UnlockMutex(is->pictq_mutex);
1455 * compute the exact PTS for the picture if it is omitted in the stream
1456 * @param pts1 the dts of the pkt / pts of the frame
1458 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1460 double frame_delay, pts;
1465 /* update video clock with pts, if present */
1466 is->video_clock = pts;
1468 pts = is->video_clock;
1470 /* update video clock for next frame */
1471 frame_delay = av_q2d(is->video_st->codec->time_base);
1472 /* for MPEG2, the frame can be repeated, so we update the
1473 clock accordingly */
1474 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1475 is->video_clock += frame_delay;
1477 #if defined(DEBUG_SYNC) && 0
1478 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1479 av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1481 return queue_picture(is, src_frame, pts, pos);
1484 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1486 int len1, got_picture, i;
1488 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1491 if(pkt->data == flush_pkt.data){
1492 avcodec_flush_buffers(is->video_st->codec);
1494 SDL_LockMutex(is->pictq_mutex);
1495 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1496 for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1497 is->pictq[i].target_clock= 0;
1499 while (is->pictq_size && !is->videoq.abort_request) {
1500 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1502 is->video_current_pos= -1;
1503 SDL_UnlockMutex(is->pictq_mutex);
1505 is->last_dts_for_fault_detection=
1506 is->last_pts_for_fault_detection= INT64_MIN;
1507 is->frame_last_pts= AV_NOPTS_VALUE;
1508 is->frame_last_delay = 0;
1509 is->frame_timer = (double)av_gettime() / 1000000.0;
1511 is->skip_frames_index= 0;
1515 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1516 this packet, if any */
1517 is->video_st->codec->reordered_opaque= pkt->pts;
1518 len1 = avcodec_decode_video2(is->video_st->codec,
1519 frame, &got_picture,
1523 if(pkt->dts != AV_NOPTS_VALUE){
1524 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1525 is->last_dts_for_fault_detection= pkt->dts;
1527 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1528 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1529 is->last_pts_for_fault_detection= frame->reordered_opaque;
1533 if( ( decoder_reorder_pts==1
1534 || (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
1535 || pkt->dts == AV_NOPTS_VALUE)
1536 && frame->reordered_opaque != AV_NOPTS_VALUE)
1537 *pts= frame->reordered_opaque;
1538 else if(pkt->dts != AV_NOPTS_VALUE)
1546 is->skip_frames_index += 1;
1547 if(is->skip_frames_index >= is->skip_frames){
1548 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1563 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1565 AVFilterContext *ctx = codec->opaque;
1566 AVFilterPicRef *ref;
1567 int perms = AV_PERM_WRITE;
1568 int i, w, h, stride[4];
1571 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1572 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1573 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1574 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1576 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1580 avcodec_align_dimensions2(codec, &w, &h, stride);
1581 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1585 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1588 ref->w = codec->width;
1589 ref->h = codec->height;
1590 for(i = 0; i < 3; i ++) {
1591 unsigned hshift = i == 0 ? 0 : av_pix_fmt_descriptors[ref->pic->format].log2_chroma_w;
1592 unsigned vshift = i == 0 ? 0 : av_pix_fmt_descriptors[ref->pic->format].log2_chroma_h;
1595 ref->data[i] += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1597 pic->data[i] = ref->data[i];
1598 pic->linesize[i] = ref->linesize[i];
1602 pic->type = FF_BUFFER_TYPE_USER;
1603 pic->reordered_opaque = codec->reordered_opaque;
1607 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1609 memset(pic->data, 0, sizeof(pic->data));
1610 avfilter_unref_pic(pic->opaque);
1613 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1615 AVFilterPicRef *ref = pic->opaque;
1617 if (pic->data[0] == NULL) {
1618 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1619 return codec->get_buffer(codec, pic);
1622 if ((codec->width != ref->w) || (codec->height != ref->h) ||
1623 (codec->pix_fmt != ref->pic->format)) {
1624 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1628 pic->reordered_opaque = codec->reordered_opaque;
1632 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1634 FilterPriv *priv = ctx->priv;
1635 AVCodecContext *codec;
1636 if(!opaque) return -1;
1639 codec = priv->is->video_st->codec;
1640 codec->opaque = ctx;
1641 if(codec->codec->capabilities & CODEC_CAP_DR1) {
1643 codec->get_buffer = input_get_buffer;
1644 codec->release_buffer = input_release_buffer;
1645 codec->reget_buffer = input_reget_buffer;
1648 priv->frame = avcodec_alloc_frame();
1653 static void input_uninit(AVFilterContext *ctx)
1655 FilterPriv *priv = ctx->priv;
1656 av_free(priv->frame);
1659 static int input_request_frame(AVFilterLink *link)
1661 FilterPriv *priv = link->src->priv;
1662 AVFilterPicRef *picref;
1667 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1668 av_free_packet(&pkt);
1673 picref = avfilter_ref_pic(priv->frame->opaque, ~0);
1675 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1676 av_picture_copy((AVPicture *)&picref->data, (AVPicture *)priv->frame,
1677 picref->pic->format, link->w, link->h);
1679 av_free_packet(&pkt);
1682 picref->pos = pkt.pos;
1683 picref->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1684 avfilter_start_frame(link, picref);
1685 avfilter_draw_slice(link, 0, link->h, 1);
1686 avfilter_end_frame(link);
1691 static int input_query_formats(AVFilterContext *ctx)
1693 FilterPriv *priv = ctx->priv;
1694 enum PixelFormat pix_fmts[] = {
1695 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1698 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1702 static int input_config_props(AVFilterLink *link)
1704 FilterPriv *priv = link->src->priv;
1705 AVCodecContext *c = priv->is->video_st->codec;
1708 link->h = c->height;
1713 static AVFilter input_filter =
1715 .name = "ffplay_input",
1717 .priv_size = sizeof(FilterPriv),
1720 .uninit = input_uninit,
1722 .query_formats = input_query_formats,
1724 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1725 .outputs = (AVFilterPad[]) {{ .name = "default",
1726 .type = AVMEDIA_TYPE_VIDEO,
1727 .request_frame = input_request_frame,
1728 .config_props = input_config_props, },
1732 static void output_end_frame(AVFilterLink *link)
1736 static int output_query_formats(AVFilterContext *ctx)
1738 enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1740 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1744 static int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
1745 int64_t *pts, int64_t *pos)
1747 AVFilterPicRef *pic;
1749 if(avfilter_request_frame(ctx->inputs[0]))
1751 if(!(pic = ctx->inputs[0]->cur_pic))
1753 ctx->inputs[0]->cur_pic = NULL;
1755 frame->opaque = pic;
1759 memcpy(frame->data, pic->data, sizeof(frame->data));
1760 memcpy(frame->linesize, pic->linesize, sizeof(frame->linesize));
1765 static AVFilter output_filter =
1767 .name = "ffplay_output",
1769 .query_formats = output_query_formats,
1771 .inputs = (AVFilterPad[]) {{ .name = "default",
1772 .type = AVMEDIA_TYPE_VIDEO,
1773 .end_frame = output_end_frame,
1774 .min_perms = AV_PERM_READ, },
1776 .outputs = (AVFilterPad[]) {{ .name = NULL }},
1778 #endif /* CONFIG_AVFILTER */
1780 static int video_thread(void *arg)
1782 VideoState *is = arg;
1783 AVFrame *frame= avcodec_alloc_frame();
1790 char sws_flags_str[128];
1791 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1792 AVFilterGraph *graph = av_mallocz(sizeof(AVFilterGraph));
1793 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1794 graph->scale_sws_opts = av_strdup(sws_flags_str);
1796 if(!(filt_src = avfilter_open(&input_filter, "src"))) goto the_end;
1797 if(!(filt_out = avfilter_open(&output_filter, "out"))) goto the_end;
1799 if(avfilter_init_filter(filt_src, NULL, is)) goto the_end;
1800 if(avfilter_init_filter(filt_out, NULL, frame)) goto the_end;
1804 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1805 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1807 outputs->name = av_strdup("in");
1808 outputs->filter = filt_src;
1809 outputs->pad_idx = 0;
1810 outputs->next = NULL;
1812 inputs->name = av_strdup("out");
1813 inputs->filter = filt_out;
1814 inputs->pad_idx = 0;
1815 inputs->next = NULL;
1817 if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1819 av_freep(&vfilters);
1821 if(avfilter_link(filt_src, 0, filt_out, 0) < 0) goto the_end;
1823 avfilter_graph_add_filter(graph, filt_src);
1824 avfilter_graph_add_filter(graph, filt_out);
1826 if(avfilter_graph_check_validity(graph, NULL)) goto the_end;
1827 if(avfilter_graph_config_formats(graph, NULL)) goto the_end;
1828 if(avfilter_graph_config_links(graph, NULL)) goto the_end;
1830 is->out_video_filter = filt_out;
1834 #if !CONFIG_AVFILTER
1837 while (is->paused && !is->videoq.abort_request)
1840 ret = get_filtered_video_frame(filt_out, frame, &pts_int, &pos);
1842 ret = get_video_frame(is, frame, &pts_int, &pkt);
1845 if (ret < 0) goto the_end;
1850 pts = pts_int*av_q2d(is->video_st->time_base);
1853 ret = output_picture2(is, frame, pts, pos);
1855 ret = output_picture2(is, frame, pts, pkt.pos);
1856 av_free_packet(&pkt);
1863 stream_pause(cur_stream);
1867 avfilter_graph_destroy(graph);
1874 static int subtitle_thread(void *arg)
1876 VideoState *is = arg;
1878 AVPacket pkt1, *pkt = &pkt1;
1879 int len1, got_subtitle;
1882 int r, g, b, y, u, v, a;
1885 while (is->paused && !is->subtitleq.abort_request) {
1888 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1891 if(pkt->data == flush_pkt.data){
1892 avcodec_flush_buffers(is->subtitle_st->codec);
1895 SDL_LockMutex(is->subpq_mutex);
1896 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1897 !is->subtitleq.abort_request) {
1898 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1900 SDL_UnlockMutex(is->subpq_mutex);
1902 if (is->subtitleq.abort_request)
1905 sp = &is->subpq[is->subpq_windex];
1907 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1908 this packet, if any */
1910 if (pkt->pts != AV_NOPTS_VALUE)
1911 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1913 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1914 &sp->sub, &got_subtitle,
1918 if (got_subtitle && sp->sub.format == 0) {
1921 for (i = 0; i < sp->sub.num_rects; i++)
1923 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1925 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1926 y = RGB_TO_Y_CCIR(r, g, b);
1927 u = RGB_TO_U_CCIR(r, g, b, 0);
1928 v = RGB_TO_V_CCIR(r, g, b, 0);
1929 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1933 /* now we can update the picture count */
1934 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1935 is->subpq_windex = 0;
1936 SDL_LockMutex(is->subpq_mutex);
1938 SDL_UnlockMutex(is->subpq_mutex);
1940 av_free_packet(pkt);
1943 // stream_pause(cur_stream);
1949 /* copy samples for viewing in editor window */
1950 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1952 int size, len, channels;
1954 channels = is->audio_st->codec->channels;
1956 size = samples_size / sizeof(short);
1958 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1961 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1963 is->sample_array_index += len;
1964 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1965 is->sample_array_index = 0;
1970 /* return the new audio buffer size (samples can be added or deleted
1971 to get better sync if video or external master clock) */
1972 static int synchronize_audio(VideoState *is, short *samples,
1973 int samples_size1, double pts)
1975 int n, samples_size;
1978 n = 2 * is->audio_st->codec->channels;
1979 samples_size = samples_size1;
1981 /* if not master, then we try to remove or add samples to correct the clock */
1982 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1983 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1984 double diff, avg_diff;
1985 int wanted_size, min_size, max_size, nb_samples;
1987 ref_clock = get_master_clock(is);
1988 diff = get_audio_clock(is) - ref_clock;
1990 if (diff < AV_NOSYNC_THRESHOLD) {
1991 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1992 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1993 /* not enough measures to have a correct estimate */
1994 is->audio_diff_avg_count++;
1996 /* estimate the A-V difference */
1997 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1999 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2000 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2001 nb_samples = samples_size / n;
2003 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2004 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2005 if (wanted_size < min_size)
2006 wanted_size = min_size;
2007 else if (wanted_size > max_size)
2008 wanted_size = max_size;
2010 /* add or remove samples to correction the synchro */
2011 if (wanted_size < samples_size) {
2012 /* remove samples */
2013 samples_size = wanted_size;
2014 } else if (wanted_size > samples_size) {
2015 uint8_t *samples_end, *q;
2019 nb = (samples_size - wanted_size);
2020 samples_end = (uint8_t *)samples + samples_size - n;
2021 q = samples_end + n;
2023 memcpy(q, samples_end, n);
2027 samples_size = wanted_size;
2031 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2032 diff, avg_diff, samples_size - samples_size1,
2033 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2037 /* too big difference : may be initial PTS errors, so
2039 is->audio_diff_avg_count = 0;
2040 is->audio_diff_cum = 0;
2044 return samples_size;
2047 /* decode one audio frame and returns its uncompressed size */
2048 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2050 AVPacket *pkt_temp = &is->audio_pkt_temp;
2051 AVPacket *pkt = &is->audio_pkt;
2052 AVCodecContext *dec= is->audio_st->codec;
2053 int n, len1, data_size;
2057 /* NOTE: the audio packet can contain several frames */
2058 while (pkt_temp->size > 0) {
2059 data_size = sizeof(is->audio_buf1);
2060 len1 = avcodec_decode_audio3(dec,
2061 (int16_t *)is->audio_buf1, &data_size,
2064 /* if error, we skip the frame */
2069 pkt_temp->data += len1;
2070 pkt_temp->size -= len1;
2074 if (dec->sample_fmt != is->audio_src_fmt) {
2075 if (is->reformat_ctx)
2076 av_audio_convert_free(is->reformat_ctx);
2077 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
2078 dec->sample_fmt, 1, NULL, 0);
2079 if (!is->reformat_ctx) {
2080 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2081 avcodec_get_sample_fmt_name(dec->sample_fmt),
2082 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
2085 is->audio_src_fmt= dec->sample_fmt;
2088 if (is->reformat_ctx) {
2089 const void *ibuf[6]= {is->audio_buf1};
2090 void *obuf[6]= {is->audio_buf2};
2091 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
2092 int ostride[6]= {2};
2093 int len= data_size/istride[0];
2094 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2095 printf("av_audio_convert() failed\n");
2098 is->audio_buf= is->audio_buf2;
2099 /* FIXME: existing code assume that data_size equals framesize*channels*2
2100 remove this legacy cruft */
2103 is->audio_buf= is->audio_buf1;
2106 /* if no pts, then compute it */
2107 pts = is->audio_clock;
2109 n = 2 * dec->channels;
2110 is->audio_clock += (double)data_size /
2111 (double)(n * dec->sample_rate);
2112 #if defined(DEBUG_SYNC)
2114 static double last_clock;
2115 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2116 is->audio_clock - last_clock,
2117 is->audio_clock, pts);
2118 last_clock = is->audio_clock;
2124 /* free the current packet */
2126 av_free_packet(pkt);
2128 if (is->paused || is->audioq.abort_request) {
2132 /* read next packet */
2133 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2135 if(pkt->data == flush_pkt.data){
2136 avcodec_flush_buffers(dec);
2140 pkt_temp->data = pkt->data;
2141 pkt_temp->size = pkt->size;
2143 /* if update the audio clock with the pts */
2144 if (pkt->pts != AV_NOPTS_VALUE) {
2145 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2150 /* get the current audio output buffer size, in samples. With SDL, we
2151 cannot have a precise information */
2152 static int audio_write_get_buf_size(VideoState *is)
2154 return is->audio_buf_size - is->audio_buf_index;
2158 /* prepare a new audio buffer */
2159 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2161 VideoState *is = opaque;
2162 int audio_size, len1;
2165 audio_callback_time = av_gettime();
2168 if (is->audio_buf_index >= is->audio_buf_size) {
2169 audio_size = audio_decode_frame(is, &pts);
2170 if (audio_size < 0) {
2171 /* if error, just output silence */
2172 is->audio_buf = is->audio_buf1;
2173 is->audio_buf_size = 1024;
2174 memset(is->audio_buf, 0, is->audio_buf_size);
2177 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2178 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2180 is->audio_buf_size = audio_size;
2182 is->audio_buf_index = 0;
2184 len1 = is->audio_buf_size - is->audio_buf_index;
2187 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2190 is->audio_buf_index += len1;
2194 /* open a given stream. Return 0 if OK */
2195 static int stream_component_open(VideoState *is, int stream_index)
2197 AVFormatContext *ic = is->ic;
2198 AVCodecContext *avctx;
2200 SDL_AudioSpec wanted_spec, spec;
2202 if (stream_index < 0 || stream_index >= ic->nb_streams)
2204 avctx = ic->streams[stream_index]->codec;
2206 /* prepare audio output */
2207 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2208 if (avctx->channels > 0) {
2209 avctx->request_channels = FFMIN(2, avctx->channels);
2211 avctx->request_channels = 2;
2215 codec = avcodec_find_decoder(avctx->codec_id);
2216 avctx->debug_mv = debug_mv;
2217 avctx->debug = debug;
2218 avctx->workaround_bugs = workaround_bugs;
2219 avctx->lowres = lowres;
2220 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2221 avctx->idct_algo= idct;
2222 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2223 avctx->skip_frame= skip_frame;
2224 avctx->skip_idct= skip_idct;
2225 avctx->skip_loop_filter= skip_loop_filter;
2226 avctx->error_recognition= error_recognition;
2227 avctx->error_concealment= error_concealment;
2228 avcodec_thread_init(avctx, thread_count);
2230 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0);
2233 avcodec_open(avctx, codec) < 0)
2236 /* prepare audio output */
2237 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2238 wanted_spec.freq = avctx->sample_rate;
2239 wanted_spec.format = AUDIO_S16SYS;
2240 wanted_spec.channels = avctx->channels;
2241 wanted_spec.silence = 0;
2242 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2243 wanted_spec.callback = sdl_audio_callback;
2244 wanted_spec.userdata = is;
2245 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2246 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2249 is->audio_hw_buf_size = spec.size;
2250 is->audio_src_fmt= SAMPLE_FMT_S16;
2253 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2254 switch(avctx->codec_type) {
2255 case AVMEDIA_TYPE_AUDIO:
2256 is->audio_stream = stream_index;
2257 is->audio_st = ic->streams[stream_index];
2258 is->audio_buf_size = 0;
2259 is->audio_buf_index = 0;
2261 /* init averaging filter */
2262 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2263 is->audio_diff_avg_count = 0;
2264 /* since we do not have a precise anough audio fifo fullness,
2265 we correct audio sync only if larger than this threshold */
2266 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2268 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2269 packet_queue_init(&is->audioq);
2272 case AVMEDIA_TYPE_VIDEO:
2273 is->video_stream = stream_index;
2274 is->video_st = ic->streams[stream_index];
2276 // is->video_current_pts_time = av_gettime();
2278 packet_queue_init(&is->videoq);
2279 is->video_tid = SDL_CreateThread(video_thread, is);
2281 case AVMEDIA_TYPE_SUBTITLE:
2282 is->subtitle_stream = stream_index;
2283 is->subtitle_st = ic->streams[stream_index];
2284 packet_queue_init(&is->subtitleq);
2286 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2294 static void stream_component_close(VideoState *is, int stream_index)
2296 AVFormatContext *ic = is->ic;
2297 AVCodecContext *avctx;
2299 if (stream_index < 0 || stream_index >= ic->nb_streams)
2301 avctx = ic->streams[stream_index]->codec;
2303 switch(avctx->codec_type) {
2304 case AVMEDIA_TYPE_AUDIO:
2305 packet_queue_abort(&is->audioq);
2309 packet_queue_end(&is->audioq);
2310 if (is->reformat_ctx)
2311 av_audio_convert_free(is->reformat_ctx);
2312 is->reformat_ctx = NULL;
2314 case AVMEDIA_TYPE_VIDEO:
2315 packet_queue_abort(&is->videoq);
2317 /* note: we also signal this mutex to make sure we deblock the
2318 video thread in all cases */
2319 SDL_LockMutex(is->pictq_mutex);
2320 SDL_CondSignal(is->pictq_cond);
2321 SDL_UnlockMutex(is->pictq_mutex);
2323 SDL_WaitThread(is->video_tid, NULL);
2325 packet_queue_end(&is->videoq);
2327 case AVMEDIA_TYPE_SUBTITLE:
2328 packet_queue_abort(&is->subtitleq);
2330 /* note: we also signal this mutex to make sure we deblock the
2331 video thread in all cases */
2332 SDL_LockMutex(is->subpq_mutex);
2333 is->subtitle_stream_changed = 1;
2335 SDL_CondSignal(is->subpq_cond);
2336 SDL_UnlockMutex(is->subpq_mutex);
2338 SDL_WaitThread(is->subtitle_tid, NULL);
2340 packet_queue_end(&is->subtitleq);
2346 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2347 avcodec_close(avctx);
2348 switch(avctx->codec_type) {
2349 case AVMEDIA_TYPE_AUDIO:
2350 is->audio_st = NULL;
2351 is->audio_stream = -1;
2353 case AVMEDIA_TYPE_VIDEO:
2354 is->video_st = NULL;
2355 is->video_stream = -1;
2357 case AVMEDIA_TYPE_SUBTITLE:
2358 is->subtitle_st = NULL;
2359 is->subtitle_stream = -1;
2366 /* since we have only one decoding thread, we can use a global
2367 variable instead of a thread local variable */
2368 static VideoState *global_video_state;
2370 static int decode_interrupt_cb(void)
2372 return (global_video_state && global_video_state->abort_request);
2375 /* this thread gets the stream from the disk or the network */
2376 static int decode_thread(void *arg)
2378 VideoState *is = arg;
2379 AVFormatContext *ic;
2381 int st_index[AVMEDIA_TYPE_NB];
2382 int st_count[AVMEDIA_TYPE_NB]={0};
2383 int st_best_packet_count[AVMEDIA_TYPE_NB];
2384 AVPacket pkt1, *pkt = &pkt1;
2385 AVFormatParameters params, *ap = ¶ms;
2387 int pkt_in_play_range = 0;
2389 ic = avformat_alloc_context();
2391 memset(st_index, -1, sizeof(st_index));
2392 memset(st_best_packet_count, -1, sizeof(st_best_packet_count));
2393 is->video_stream = -1;
2394 is->audio_stream = -1;
2395 is->subtitle_stream = -1;
2397 global_video_state = is;
2398 url_set_interrupt_cb(decode_interrupt_cb);
2400 memset(ap, 0, sizeof(*ap));
2402 ap->prealloced_context = 1;
2403 ap->width = frame_width;
2404 ap->height= frame_height;
2405 ap->time_base= (AVRational){1, 25};
2406 ap->pix_fmt = frame_pix_fmt;
2408 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2410 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2412 print_error(is->filename, err);
2419 ic->flags |= AVFMT_FLAG_GENPTS;
2421 err = av_find_stream_info(ic);
2423 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2428 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2431 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2433 /* if seeking requested, we execute it */
2434 if (start_time != AV_NOPTS_VALUE) {
2437 timestamp = start_time;
2438 /* add the stream start time */
2439 if (ic->start_time != AV_NOPTS_VALUE)
2440 timestamp += ic->start_time;
2441 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2443 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2444 is->filename, (double)timestamp / AV_TIME_BASE);
2448 for(i = 0; i < ic->nb_streams; i++) {
2449 AVStream *st= ic->streams[i];
2450 AVCodecContext *avctx = st->codec;
2451 ic->streams[i]->discard = AVDISCARD_ALL;
2452 if(avctx->codec_type >= (unsigned)AVMEDIA_TYPE_NB)
2454 if(st_count[avctx->codec_type]++ != wanted_stream[avctx->codec_type] && wanted_stream[avctx->codec_type] >= 0)
2457 if(st_best_packet_count[avctx->codec_type] >= st->codec_info_nb_frames)
2459 st_best_packet_count[avctx->codec_type]= st->codec_info_nb_frames;
2461 switch(avctx->codec_type) {
2462 case AVMEDIA_TYPE_AUDIO:
2464 st_index[AVMEDIA_TYPE_AUDIO] = i;
2466 case AVMEDIA_TYPE_VIDEO:
2467 case AVMEDIA_TYPE_SUBTITLE:
2469 st_index[avctx->codec_type] = i;
2476 dump_format(ic, 0, is->filename, 0);
2479 /* open the streams */
2480 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2481 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2485 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2486 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2488 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2490 if (!display_disable)
2494 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2495 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2498 if (is->video_stream < 0 && is->audio_stream < 0) {
2499 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2505 if (is->abort_request)
2507 if (is->paused != is->last_paused) {
2508 is->last_paused = is->paused;
2510 is->read_pause_return= av_read_pause(ic);
2514 #if CONFIG_RTSP_DEMUXER
2515 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2516 /* wait 10 ms to avoid trying to get another packet */
2523 int64_t seek_target= is->seek_pos;
2524 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2525 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2526 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2527 // of the seek_pos/seek_rel variables
2529 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2531 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2533 if (is->audio_stream >= 0) {
2534 packet_queue_flush(&is->audioq);
2535 packet_queue_put(&is->audioq, &flush_pkt);
2537 if (is->subtitle_stream >= 0) {
2538 packet_queue_flush(&is->subtitleq);
2539 packet_queue_put(&is->subtitleq, &flush_pkt);
2541 if (is->video_stream >= 0) {
2542 packet_queue_flush(&is->videoq);
2543 packet_queue_put(&is->videoq, &flush_pkt);
2550 /* if the queue are full, no need to read more */
2551 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2552 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2553 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2554 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2559 if(url_feof(ic->pb) || eof) {
2560 if(is->video_stream >= 0){
2561 av_init_packet(pkt);
2564 pkt->stream_index= is->video_stream;
2565 packet_queue_put(&is->videoq, pkt);
2568 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2569 if(loop!=1 && (!loop || --loop)){
2570 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2578 ret = av_read_frame(ic, pkt);
2580 if (ret == AVERROR_EOF)
2582 if (url_ferror(ic->pb))
2584 SDL_Delay(100); /* wait for user event */
2587 /* check if packet is in play range specified by user, then queue, otherwise discard */
2588 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2589 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2590 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2591 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2592 <= ((double)duration/1000000);
2593 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2594 packet_queue_put(&is->audioq, pkt);
2595 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2596 packet_queue_put(&is->videoq, pkt);
2597 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2598 packet_queue_put(&is->subtitleq, pkt);
2600 av_free_packet(pkt);
2603 /* wait until the end */
2604 while (!is->abort_request) {
2610 /* disable interrupting */
2611 global_video_state = NULL;
2613 /* close each stream */
2614 if (is->audio_stream >= 0)
2615 stream_component_close(is, is->audio_stream);
2616 if (is->video_stream >= 0)
2617 stream_component_close(is, is->video_stream);
2618 if (is->subtitle_stream >= 0)
2619 stream_component_close(is, is->subtitle_stream);
2621 av_close_input_file(is->ic);
2622 is->ic = NULL; /* safety */
2624 url_set_interrupt_cb(NULL);
2629 event.type = FF_QUIT_EVENT;
2630 event.user.data1 = is;
2631 SDL_PushEvent(&event);
2636 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2640 is = av_mallocz(sizeof(VideoState));
2643 av_strlcpy(is->filename, filename, sizeof(is->filename));
2644 is->iformat = iformat;
2648 /* start video display */
2649 is->pictq_mutex = SDL_CreateMutex();
2650 is->pictq_cond = SDL_CreateCond();
2652 is->subpq_mutex = SDL_CreateMutex();
2653 is->subpq_cond = SDL_CreateCond();
2655 is->av_sync_type = av_sync_type;
2656 is->parse_tid = SDL_CreateThread(decode_thread, is);
2657 if (!is->parse_tid) {
2664 static void stream_close(VideoState *is)
2668 /* XXX: use a special url_shutdown call to abort parse cleanly */
2669 is->abort_request = 1;
2670 SDL_WaitThread(is->parse_tid, NULL);
2671 SDL_WaitThread(is->refresh_tid, NULL);
2673 /* free all pictures */
2674 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2678 avfilter_unref_pic(vp->picref);
2683 SDL_FreeYUVOverlay(vp->bmp);
2687 SDL_DestroyMutex(is->pictq_mutex);
2688 SDL_DestroyCond(is->pictq_cond);
2689 SDL_DestroyMutex(is->subpq_mutex);
2690 SDL_DestroyCond(is->subpq_cond);
2691 #if !CONFIG_AVFILTER
2692 if (is->img_convert_ctx)
2693 sws_freeContext(is->img_convert_ctx);
2698 static void stream_cycle_channel(VideoState *is, int codec_type)
2700 AVFormatContext *ic = is->ic;
2701 int start_index, stream_index;
2704 if (codec_type == AVMEDIA_TYPE_VIDEO)
2705 start_index = is->video_stream;
2706 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2707 start_index = is->audio_stream;
2709 start_index = is->subtitle_stream;
2710 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2712 stream_index = start_index;
2714 if (++stream_index >= is->ic->nb_streams)
2716 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2723 if (stream_index == start_index)
2725 st = ic->streams[stream_index];
2726 if (st->codec->codec_type == codec_type) {
2727 /* check that parameters are OK */
2728 switch(codec_type) {
2729 case AVMEDIA_TYPE_AUDIO:
2730 if (st->codec->sample_rate != 0 &&
2731 st->codec->channels != 0)
2734 case AVMEDIA_TYPE_VIDEO:
2735 case AVMEDIA_TYPE_SUBTITLE:
2743 stream_component_close(is, start_index);
2744 stream_component_open(is, stream_index);
2748 static void toggle_full_screen(void)
2750 is_full_screen = !is_full_screen;
2751 if (!fs_screen_width) {
2752 /* use default SDL method */
2753 // SDL_WM_ToggleFullScreen(screen);
2755 video_open(cur_stream);
2758 static void toggle_pause(void)
2761 stream_pause(cur_stream);
2765 static void step_to_next_frame(void)
2768 /* if the stream is paused unpause it, then step */
2769 if (cur_stream->paused)
2770 stream_pause(cur_stream);
2775 static void do_exit(void)
2779 stream_close(cur_stream);
2782 for (i = 0; i < AVMEDIA_TYPE_NB; i++)
2783 av_free(avcodec_opts[i]);
2784 av_free(avformat_opts);
2795 static void toggle_audio_display(void)
2798 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2799 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2800 fill_rectangle(screen,
2801 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2803 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2807 /* handle an event sent by the GUI */
2808 static void event_loop(void)
2811 double incr, pos, frac;
2815 SDL_WaitEvent(&event);
2816 switch(event.type) {
2818 switch(event.key.keysym.sym) {
2824 toggle_full_screen();
2830 case SDLK_s: //S: Step to next frame
2831 step_to_next_frame();
2835 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2839 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2843 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2846 toggle_audio_display();
2861 if (seek_by_bytes) {
2862 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2863 pos= cur_stream->video_current_pos;
2864 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2865 pos= cur_stream->audio_pkt.pos;
2867 pos = url_ftell(cur_stream->ic->pb);
2868 if (cur_stream->ic->bit_rate)
2869 incr *= cur_stream->ic->bit_rate / 8.0;
2873 stream_seek(cur_stream, pos, incr, 1);
2875 pos = get_master_clock(cur_stream);
2877 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2885 case SDL_MOUSEBUTTONDOWN:
2886 case SDL_MOUSEMOTION:
2887 if(event.type ==SDL_MOUSEBUTTONDOWN){
2890 if(event.motion.state != SDL_PRESSED)
2895 if(seek_by_bytes || cur_stream->ic->duration<=0){
2896 uint64_t size= url_fsize(cur_stream->ic->pb);
2897 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2901 int tns, thh, tmm, tss;
2902 tns = cur_stream->ic->duration/1000000LL;
2904 tmm = (tns%3600)/60;
2906 frac = x/cur_stream->width;
2911 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2912 hh, mm, ss, thh, tmm, tss);
2913 ts = frac*cur_stream->ic->duration;
2914 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2915 ts += cur_stream->ic->start_time;
2916 stream_seek(cur_stream, ts, 0, 0);
2920 case SDL_VIDEORESIZE:
2922 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2923 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2924 screen_width = cur_stream->width = event.resize.w;
2925 screen_height= cur_stream->height= event.resize.h;
2932 case FF_ALLOC_EVENT:
2933 video_open(event.user.data1);
2934 alloc_picture(event.user.data1);
2936 case FF_REFRESH_EVENT:
2937 video_refresh_timer(event.user.data1);
2938 cur_stream->refresh=0;
2946 static void opt_frame_size(const char *arg)
2948 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2949 fprintf(stderr, "Incorrect frame size\n");
2952 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2953 fprintf(stderr, "Frame size must be a multiple of 2\n");
2958 static int opt_width(const char *opt, const char *arg)
2960 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2964 static int opt_height(const char *opt, const char *arg)
2966 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2970 static void opt_format(const char *arg)
2972 file_iformat = av_find_input_format(arg);
2973 if (!file_iformat) {
2974 fprintf(stderr, "Unknown input format: %s\n", arg);
2979 static void opt_frame_pix_fmt(const char *arg)
2981 frame_pix_fmt = av_get_pix_fmt(arg);
2984 static int opt_sync(const char *opt, const char *arg)
2986 if (!strcmp(arg, "audio"))
2987 av_sync_type = AV_SYNC_AUDIO_MASTER;
2988 else if (!strcmp(arg, "video"))
2989 av_sync_type = AV_SYNC_VIDEO_MASTER;
2990 else if (!strcmp(arg, "ext"))
2991 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2993 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2999 static int opt_seek(const char *opt, const char *arg)
3001 start_time = parse_time_or_die(opt, arg, 1);
3005 static int opt_duration(const char *opt, const char *arg)
3007 duration = parse_time_or_die(opt, arg, 1);
3011 static int opt_debug(const char *opt, const char *arg)
3013 av_log_set_level(99);
3014 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3018 static int opt_vismv(const char *opt, const char *arg)
3020 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
3024 static int opt_thread_count(const char *opt, const char *arg)
3026 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3028 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3033 static const OptionDef options[] = {
3034 #include "cmdutils_common_opts.h"
3035 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3036 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3037 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3038 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3039 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3040 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3041 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3042 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3043 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3044 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3045 { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
3046 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3047 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3048 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3049 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3050 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3051 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3052 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3053 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3054 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3055 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3056 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3057 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3058 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3059 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3060 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3061 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
3062 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
3063 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
3064 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3065 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3066 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3067 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3068 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3069 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3071 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3073 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3074 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3078 static void show_usage(void)
3080 printf("Simple media player\n");
3081 printf("usage: ffplay [options] input_file\n");
3085 static void show_help(void)
3088 show_help_options(options, "Main options:\n",
3090 show_help_options(options, "\nAdvanced options:\n",
3091 OPT_EXPERT, OPT_EXPERT);
3092 printf("\nWhile playing:\n"
3094 "f toggle full screen\n"
3096 "a cycle audio channel\n"
3097 "v cycle video channel\n"
3098 "t cycle subtitle channel\n"
3099 "w show audio waves\n"
3100 "s activate frame-step mode\n"
3101 "left/right seek backward/forward 10 seconds\n"
3102 "down/up seek backward/forward 1 minute\n"
3103 "mouse click seek to percentage in file corresponding to fraction of width\n"
3107 static void opt_input_file(const char *filename)
3109 if (input_filename) {
3110 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3111 filename, input_filename);
3114 if (!strcmp(filename, "-"))
3116 input_filename = filename;
3119 /* Called from the main */
3120 int main(int argc, char **argv)
3124 /* register all codecs, demux and protocols */
3125 avcodec_register_all();
3127 avdevice_register_all();
3130 avfilter_register_all();
3134 for(i=0; i<AVMEDIA_TYPE_NB; i++){
3135 avcodec_opts[i]= avcodec_alloc_context2(i);
3137 avformat_opts = avformat_alloc_context();
3138 #if !CONFIG_AVFILTER
3139 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
3144 parse_options(argc, argv, options, opt_input_file);
3146 if (!input_filename) {
3148 fprintf(stderr, "An input file must be specified\n");
3149 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3153 if (display_disable) {
3156 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3157 #if !defined(__MINGW32__) && !defined(__APPLE__)
3158 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3160 if (SDL_Init (flags)) {
3161 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3165 if (!display_disable) {
3166 #if HAVE_SDL_VIDEO_SIZE
3167 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3168 fs_screen_width = vi->current_w;
3169 fs_screen_height = vi->current_h;
3173 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3174 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3175 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3177 av_init_packet(&flush_pkt);
3178 flush_pkt.data= "FLUSH";
3180 cur_stream = stream_open(input_filename, file_iformat);