2 * FFplay : Simple Media Player based on the FFmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/avstring.h"
27 #include "libavutil/colorspace.h"
28 #include "libavutil/pixdesc.h"
29 #include "libavcore/parseutils.h"
30 #include "libavformat/avformat.h"
31 #include "libavdevice/avdevice.h"
32 #include "libswscale/swscale.h"
33 #include "libavcodec/audioconvert.h"
34 #include "libavcodec/opt.h"
35 #include "libavcodec/avfft.h"
38 # include "libavfilter/avfilter.h"
39 # include "libavfilter/avfiltergraph.h"
40 # include "libavfilter/graphparser.h"
46 #include <SDL_thread.h>
49 #undef main /* We don't want SDL to override our main() */
55 const char program_name[] = "FFplay";
56 const int program_birth_year = 2003;
60 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
61 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
64 /* SDL audio buffer size, in samples. Should be small to have precise
65 A/V sync as SDL does not have hardware buffer fullness info. */
66 #define SDL_AUDIO_BUFFER_SIZE 1024
68 /* no AV sync correction is done if below the AV sync threshold */
69 #define AV_SYNC_THRESHOLD 0.01
70 /* no AV correction is done if too big error */
71 #define AV_NOSYNC_THRESHOLD 10.0
73 #define FRAME_SKIP_FACTOR 0.05
75 /* maximum audio speed change to get correct sync */
76 #define SAMPLE_CORRECTION_PERCENT_MAX 10
78 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
79 #define AUDIO_DIFF_AVG_NB 20
81 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
82 #define SAMPLE_ARRAY_SIZE (2*65536)
84 static int sws_flags = SWS_BICUBIC;
86 typedef struct PacketQueue {
87 AVPacketList *first_pkt, *last_pkt;
95 #define VIDEO_PICTURE_QUEUE_SIZE 2
96 #define SUBPICTURE_QUEUE_SIZE 4
98 typedef struct VideoPicture {
99 double pts; ///<presentation time stamp for this picture
100 double target_clock; ///<av_gettime() time at which this should be displayed ideally
101 int64_t pos; ///<byte position in file
103 int width, height; /* source height & width */
105 enum PixelFormat pix_fmt;
108 AVFilterBufferRef *picref;
112 typedef struct SubPicture {
113 double pts; /* presentation time stamp for this picture */
118 AV_SYNC_AUDIO_MASTER, /* default choice */
119 AV_SYNC_VIDEO_MASTER,
120 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
123 typedef struct VideoState {
124 SDL_Thread *parse_tid;
125 SDL_Thread *video_tid;
126 SDL_Thread *refresh_tid;
127 AVInputFormat *iformat;
136 int read_pause_return;
138 int dtg_active_format;
143 double external_clock; /* external clock base */
144 int64_t external_clock_time;
147 double audio_diff_cum; /* used for AV difference average computation */
148 double audio_diff_avg_coef;
149 double audio_diff_threshold;
150 int audio_diff_avg_count;
153 int audio_hw_buf_size;
154 /* samples output by the codec. we reserve more space for avsync
156 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
157 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
159 unsigned int audio_buf_size; /* in bytes */
160 int audio_buf_index; /* in bytes */
161 AVPacket audio_pkt_temp;
163 enum SampleFormat audio_src_fmt;
164 AVAudioConvert *reformat_ctx;
166 int show_audio; /* if true, display audio samples */
167 int16_t sample_array[SAMPLE_ARRAY_SIZE];
168 int sample_array_index;
172 FFTSample *rdft_data;
175 SDL_Thread *subtitle_tid;
177 int subtitle_stream_changed;
178 AVStream *subtitle_st;
179 PacketQueue subtitleq;
180 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
181 int subpq_size, subpq_rindex, subpq_windex;
182 SDL_mutex *subpq_mutex;
183 SDL_cond *subpq_cond;
186 double frame_last_pts;
187 double frame_last_delay;
188 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
192 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
193 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
194 int64_t video_current_pos; ///<current displayed file pos
195 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
196 int pictq_size, pictq_rindex, pictq_windex;
197 SDL_mutex *pictq_mutex;
198 SDL_cond *pictq_cond;
200 struct SwsContext *img_convert_ctx;
203 // QETimer *video_timer;
205 int width, height, xleft, ytop;
209 int64_t last_dts_for_fault_detection;
210 int64_t last_pts_for_fault_detection;
213 AVFilterContext *out_video_filter; ///<the last filter in the video chain
217 float skip_frames_index;
221 static void show_help(void);
222 static int audio_write_get_buf_size(VideoState *is);
224 /* options specified by the user */
225 static AVInputFormat *file_iformat;
226 static const char *input_filename;
227 static const char *window_title;
228 static int fs_screen_width;
229 static int fs_screen_height;
230 static int screen_width = 0;
231 static int screen_height = 0;
232 static int frame_width = 0;
233 static int frame_height = 0;
234 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
235 static int audio_disable;
236 static int video_disable;
237 static int wanted_stream[AVMEDIA_TYPE_NB]={
238 [AVMEDIA_TYPE_AUDIO]=-1,
239 [AVMEDIA_TYPE_VIDEO]=-1,
240 [AVMEDIA_TYPE_SUBTITLE]=-1,
242 static int seek_by_bytes=-1;
243 static int display_disable;
244 static int show_status = 1;
245 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
246 static int64_t start_time = AV_NOPTS_VALUE;
247 static int64_t duration = AV_NOPTS_VALUE;
248 static int debug = 0;
249 static int debug_mv = 0;
251 static int thread_count = 1;
252 static int workaround_bugs = 1;
254 static int genpts = 0;
255 static int lowres = 0;
256 static int idct = FF_IDCT_AUTO;
257 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
258 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
259 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
260 static int error_recognition = FF_ER_CAREFUL;
261 static int error_concealment = 3;
262 static int decoder_reorder_pts= -1;
264 static int exit_on_keydown;
265 static int exit_on_mousedown;
267 static int framedrop=1;
269 static int rdftspeed=20;
271 static char *vfilters = NULL;
274 /* current context */
275 static int is_full_screen;
276 static VideoState *cur_stream;
277 static int64_t audio_callback_time;
279 static AVPacket flush_pkt;
281 #define FF_ALLOC_EVENT (SDL_USEREVENT)
282 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
283 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
285 static SDL_Surface *screen;
287 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
289 /* packet queue handling */
290 static void packet_queue_init(PacketQueue *q)
292 memset(q, 0, sizeof(PacketQueue));
293 q->mutex = SDL_CreateMutex();
294 q->cond = SDL_CreateCond();
295 packet_queue_put(q, &flush_pkt);
298 static void packet_queue_flush(PacketQueue *q)
300 AVPacketList *pkt, *pkt1;
302 SDL_LockMutex(q->mutex);
303 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
305 av_free_packet(&pkt->pkt);
312 SDL_UnlockMutex(q->mutex);
315 static void packet_queue_end(PacketQueue *q)
317 packet_queue_flush(q);
318 SDL_DestroyMutex(q->mutex);
319 SDL_DestroyCond(q->cond);
322 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
326 /* duplicate the packet */
327 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
330 pkt1 = av_malloc(sizeof(AVPacketList));
337 SDL_LockMutex(q->mutex);
343 q->last_pkt->next = pkt1;
346 q->size += pkt1->pkt.size + sizeof(*pkt1);
347 /* XXX: should duplicate packet data in DV case */
348 SDL_CondSignal(q->cond);
350 SDL_UnlockMutex(q->mutex);
354 static void packet_queue_abort(PacketQueue *q)
356 SDL_LockMutex(q->mutex);
358 q->abort_request = 1;
360 SDL_CondSignal(q->cond);
362 SDL_UnlockMutex(q->mutex);
365 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
366 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
371 SDL_LockMutex(q->mutex);
374 if (q->abort_request) {
381 q->first_pkt = pkt1->next;
385 q->size -= pkt1->pkt.size + sizeof(*pkt1);
394 SDL_CondWait(q->cond, q->mutex);
397 SDL_UnlockMutex(q->mutex);
401 static inline void fill_rectangle(SDL_Surface *screen,
402 int x, int y, int w, int h, int color)
409 SDL_FillRect(screen, &rect, color);
413 /* draw only the border of a rectangle */
414 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
418 /* fill the background */
422 w2 = s->width - (x + w);
428 h2 = s->height - (y + h);
431 fill_rectangle(screen,
435 fill_rectangle(screen,
436 s->xleft + s->width - w2, s->ytop,
439 fill_rectangle(screen,
440 s->xleft + w1, s->ytop,
441 s->width - w1 - w2, h1,
443 fill_rectangle(screen,
444 s->xleft + w1, s->ytop + s->height - h2,
445 s->width - w1 - w2, h2,
450 #define ALPHA_BLEND(a, oldp, newp, s)\
451 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
453 #define RGBA_IN(r, g, b, a, s)\
455 unsigned int v = ((const uint32_t *)(s))[0];\
456 a = (v >> 24) & 0xff;\
457 r = (v >> 16) & 0xff;\
458 g = (v >> 8) & 0xff;\
462 #define YUVA_IN(y, u, v, a, s, pal)\
464 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
465 a = (val >> 24) & 0xff;\
466 y = (val >> 16) & 0xff;\
467 u = (val >> 8) & 0xff;\
471 #define YUVA_OUT(d, y, u, v, a)\
473 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
479 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
481 int wrap, wrap3, width2, skip2;
482 int y, u, v, a, u1, v1, a1, w, h;
483 uint8_t *lum, *cb, *cr;
486 int dstx, dsty, dstw, dsth;
488 dstw = av_clip(rect->w, 0, imgw);
489 dsth = av_clip(rect->h, 0, imgh);
490 dstx = av_clip(rect->x, 0, imgw - dstw);
491 dsty = av_clip(rect->y, 0, imgh - dsth);
492 lum = dst->data[0] + dsty * dst->linesize[0];
493 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
494 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
496 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
498 wrap = dst->linesize[0];
499 wrap3 = rect->pict.linesize[0];
500 p = rect->pict.data[0];
501 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
509 YUVA_IN(y, u, v, a, p, pal);
510 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
511 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
512 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
518 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
519 YUVA_IN(y, u, v, a, p, pal);
523 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
525 YUVA_IN(y, u, v, a, p + BPP, pal);
529 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
530 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
531 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
538 YUVA_IN(y, u, v, a, p, pal);
539 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
540 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
541 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
545 p += wrap3 - dstw * BPP;
546 lum += wrap - dstw - dstx;
547 cb += dst->linesize[1] - width2 - skip2;
548 cr += dst->linesize[2] - width2 - skip2;
550 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
556 YUVA_IN(y, u, v, a, p, pal);
560 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
563 YUVA_IN(y, u, v, a, p, pal);
567 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
568 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
569 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
575 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
576 YUVA_IN(y, u, v, a, p, pal);
580 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
582 YUVA_IN(y, u, v, a, p + BPP, pal);
586 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
590 YUVA_IN(y, u, v, a, p, pal);
594 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
596 YUVA_IN(y, u, v, a, p + BPP, pal);
600 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
602 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
603 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
607 p += -wrap3 + 2 * BPP;
611 YUVA_IN(y, u, v, a, p, pal);
615 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
618 YUVA_IN(y, u, v, a, p, pal);
622 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
623 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
624 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
630 p += wrap3 + (wrap3 - dstw * BPP);
631 lum += wrap + (wrap - dstw - dstx);
632 cb += dst->linesize[1] - width2 - skip2;
633 cr += dst->linesize[2] - width2 - skip2;
635 /* handle odd height */
642 YUVA_IN(y, u, v, a, p, pal);
643 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
644 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
645 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
651 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
652 YUVA_IN(y, u, v, a, p, pal);
656 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
658 YUVA_IN(y, u, v, a, p + BPP, pal);
662 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
663 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
664 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
671 YUVA_IN(y, u, v, a, p, pal);
672 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
673 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
674 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
679 static void free_subpicture(SubPicture *sp)
681 avsubtitle_free(&sp->sub);
684 static void video_image_display(VideoState *is)
690 int width, height, x, y;
694 vp = &is->pictq[is->pictq_rindex];
697 if (vp->picref->video->pixel_aspect.num == 0)
700 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
703 /* XXX: use variable in the frame */
704 if (is->video_st->sample_aspect_ratio.num)
705 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
706 else if (is->video_st->codec->sample_aspect_ratio.num)
707 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
711 if (aspect_ratio <= 0.0)
713 aspect_ratio *= (float)vp->width / (float)vp->height;
714 /* if an active format is indicated, then it overrides the
717 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
718 is->dtg_active_format = is->video_st->codec->dtg_active_format;
719 printf("dtg_active_format=%d\n", is->dtg_active_format);
723 switch(is->video_st->codec->dtg_active_format) {
724 case FF_DTG_AFD_SAME:
729 aspect_ratio = 4.0 / 3.0;
731 case FF_DTG_AFD_16_9:
732 aspect_ratio = 16.0 / 9.0;
734 case FF_DTG_AFD_14_9:
735 aspect_ratio = 14.0 / 9.0;
737 case FF_DTG_AFD_4_3_SP_14_9:
738 aspect_ratio = 14.0 / 9.0;
740 case FF_DTG_AFD_16_9_SP_14_9:
741 aspect_ratio = 14.0 / 9.0;
743 case FF_DTG_AFD_SP_4_3:
744 aspect_ratio = 4.0 / 3.0;
751 if (is->subpq_size > 0)
753 sp = &is->subpq[is->subpq_rindex];
755 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
757 SDL_LockYUVOverlay (vp->bmp);
759 pict.data[0] = vp->bmp->pixels[0];
760 pict.data[1] = vp->bmp->pixels[2];
761 pict.data[2] = vp->bmp->pixels[1];
763 pict.linesize[0] = vp->bmp->pitches[0];
764 pict.linesize[1] = vp->bmp->pitches[2];
765 pict.linesize[2] = vp->bmp->pitches[1];
767 for (i = 0; i < sp->sub.num_rects; i++)
768 blend_subrect(&pict, sp->sub.rects[i],
769 vp->bmp->w, vp->bmp->h);
771 SDL_UnlockYUVOverlay (vp->bmp);
777 /* XXX: we suppose the screen has a 1.0 pixel ratio */
779 width = ((int)rint(height * aspect_ratio)) & ~1;
780 if (width > is->width) {
782 height = ((int)rint(width / aspect_ratio)) & ~1;
784 x = (is->width - width) / 2;
785 y = (is->height - height) / 2;
786 if (!is->no_background) {
787 /* fill the background */
788 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
790 is->no_background = 0;
792 rect.x = is->xleft + x;
793 rect.y = is->ytop + y;
796 SDL_DisplayYUVOverlay(vp->bmp, &rect);
799 fill_rectangle(screen,
800 is->xleft, is->ytop, is->width, is->height,
801 QERGB(0x00, 0x00, 0x00));
806 static inline int compute_mod(int a, int b)
815 static void video_audio_display(VideoState *s)
817 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
818 int ch, channels, h, h2, bgcolor, fgcolor;
820 int rdft_bits, nb_freq;
822 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
824 nb_freq= 1<<(rdft_bits-1);
826 /* compute display index : center on currently output samples */
827 channels = s->audio_st->codec->channels;
828 nb_display_channels = channels;
830 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
832 delay = audio_write_get_buf_size(s);
835 /* to be more precise, we take into account the time spent since
836 the last buffer computation */
837 if (audio_callback_time) {
838 time_diff = av_gettime() - audio_callback_time;
839 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
842 delay += 2*data_used;
843 if (delay < data_used)
846 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
847 if(s->show_audio==1){
849 for(i=0; i<1000; i+=channels){
850 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
851 int a= s->sample_array[idx];
852 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
853 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
854 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
856 if(h<score && (b^c)<0){
863 s->last_i_start = i_start;
865 i_start = s->last_i_start;
868 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
869 if(s->show_audio==1){
870 fill_rectangle(screen,
871 s->xleft, s->ytop, s->width, s->height,
874 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
876 /* total height for one channel */
877 h = s->height / nb_display_channels;
878 /* graph height / 2 */
880 for(ch = 0;ch < nb_display_channels; ch++) {
882 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
883 for(x = 0; x < s->width; x++) {
884 y = (s->sample_array[i] * h2) >> 15;
891 fill_rectangle(screen,
892 s->xleft + x, ys, 1, y,
895 if (i >= SAMPLE_ARRAY_SIZE)
896 i -= SAMPLE_ARRAY_SIZE;
900 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
902 for(ch = 1;ch < nb_display_channels; ch++) {
903 y = s->ytop + ch * h;
904 fill_rectangle(screen,
905 s->xleft, y, s->width, 1,
908 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
910 nb_display_channels= FFMIN(nb_display_channels, 2);
911 if(rdft_bits != s->rdft_bits){
912 av_rdft_end(s->rdft);
913 av_free(s->rdft_data);
914 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
915 s->rdft_bits= rdft_bits;
916 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
920 for(ch = 0;ch < nb_display_channels; ch++) {
921 data[ch] = s->rdft_data + 2*nb_freq*ch;
923 for(x = 0; x < 2*nb_freq; x++) {
924 double w= (x-nb_freq)*(1.0/nb_freq);
925 data[ch][x]= s->sample_array[i]*(1.0-w*w);
927 if (i >= SAMPLE_ARRAY_SIZE)
928 i -= SAMPLE_ARRAY_SIZE;
930 av_rdft_calc(s->rdft, data[ch]);
932 //least efficient way to do this, we should of course directly access it but its more than fast enough
933 for(y=0; y<s->height; y++){
934 double w= 1/sqrt(nb_freq);
935 int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1]));
936 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
937 + data[1][2*y+1]*data[1][2*y+1])) : a;
940 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
942 fill_rectangle(screen,
943 s->xpos, s->height-y, 1, 1,
947 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
949 if(s->xpos >= s->width)
954 static int video_open(VideoState *is){
955 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
958 if(is_full_screen) flags |= SDL_FULLSCREEN;
959 else flags |= SDL_RESIZABLE;
961 if (is_full_screen && fs_screen_width) {
963 h = fs_screen_height;
964 } else if(!is_full_screen && screen_width){
968 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
969 w = is->out_video_filter->inputs[0]->w;
970 h = is->out_video_filter->inputs[0]->h;
972 }else if (is->video_st && is->video_st->codec->width){
973 w = is->video_st->codec->width;
974 h = is->video_st->codec->height;
980 if(screen && is->width == screen->w && screen->w == w
981 && is->height== screen->h && screen->h == h)
985 screen = SDL_SetVideoMode(w, h, 0, flags);
987 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
988 screen = SDL_SetVideoMode(w, h, 24, flags);
991 fprintf(stderr, "SDL: could not set video mode - exiting\n");
995 window_title = input_filename;
996 SDL_WM_SetCaption(window_title, window_title);
998 is->width = screen->w;
999 is->height = screen->h;
1004 /* display the current picture, if any */
1005 static void video_display(VideoState *is)
1008 video_open(cur_stream);
1009 if (is->audio_st && is->show_audio)
1010 video_audio_display(is);
1011 else if (is->video_st)
1012 video_image_display(is);
1015 static int refresh_thread(void *opaque)
1017 VideoState *is= opaque;
1018 while(!is->abort_request){
1020 event.type = FF_REFRESH_EVENT;
1021 event.user.data1 = opaque;
1024 SDL_PushEvent(&event);
1026 usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1031 /* get the current audio clock value */
1032 static double get_audio_clock(VideoState *is)
1035 int hw_buf_size, bytes_per_sec;
1036 pts = is->audio_clock;
1037 hw_buf_size = audio_write_get_buf_size(is);
1040 bytes_per_sec = is->audio_st->codec->sample_rate *
1041 2 * is->audio_st->codec->channels;
1044 pts -= (double)hw_buf_size / bytes_per_sec;
1048 /* get the current video clock value */
1049 static double get_video_clock(VideoState *is)
1052 return is->video_current_pts;
1054 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1058 /* get the current external clock value */
1059 static double get_external_clock(VideoState *is)
1063 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1066 /* get the current master clock value */
1067 static double get_master_clock(VideoState *is)
1071 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1073 val = get_video_clock(is);
1075 val = get_audio_clock(is);
1076 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1078 val = get_audio_clock(is);
1080 val = get_video_clock(is);
1082 val = get_external_clock(is);
1087 /* seek in the stream */
1088 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1090 if (!is->seek_req) {
1093 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1095 is->seek_flags |= AVSEEK_FLAG_BYTE;
1100 /* pause or resume the video */
1101 static void stream_pause(VideoState *is)
1104 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1105 if(is->read_pause_return != AVERROR(ENOSYS)){
1106 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1108 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1110 is->paused = !is->paused;
1113 static double compute_target_time(double frame_current_pts, VideoState *is)
1115 double delay, sync_threshold, diff;
1117 /* compute nominal delay */
1118 delay = frame_current_pts - is->frame_last_pts;
1119 if (delay <= 0 || delay >= 10.0) {
1120 /* if incorrect delay, use previous one */
1121 delay = is->frame_last_delay;
1123 is->frame_last_delay = delay;
1125 is->frame_last_pts = frame_current_pts;
1127 /* update delay to follow master synchronisation source */
1128 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1129 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1130 /* if video is slave, we try to correct big delays by
1131 duplicating or deleting a frame */
1132 diff = get_video_clock(is) - get_master_clock(is);
1134 /* skip or repeat frame. We take into account the
1135 delay to compute the threshold. I still don't know
1136 if it is the best guess */
1137 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1138 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1139 if (diff <= -sync_threshold)
1141 else if (diff >= sync_threshold)
1145 is->frame_timer += delay;
1146 #if defined(DEBUG_SYNC)
1147 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1148 delay, actual_delay, frame_current_pts, -diff);
1151 return is->frame_timer;
1154 /* called to display each frame */
1155 static void video_refresh_timer(void *opaque)
1157 VideoState *is = opaque;
1160 SubPicture *sp, *sp2;
1164 if (is->pictq_size == 0) {
1165 //nothing to do, no picture to display in the que
1167 double time= av_gettime()/1000000.0;
1169 /* dequeue the picture */
1170 vp = &is->pictq[is->pictq_rindex];
1172 if(time < vp->target_clock)
1174 /* update current video pts */
1175 is->video_current_pts = vp->pts;
1176 is->video_current_pts_drift = is->video_current_pts - time;
1177 is->video_current_pos = vp->pos;
1178 if(is->pictq_size > 1){
1179 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1180 assert(nextvp->target_clock >= vp->target_clock);
1181 next_target= nextvp->target_clock;
1183 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1185 if(framedrop && time > next_target){
1186 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1187 if(is->pictq_size > 1 || time > next_target + 0.5){
1188 /* update queue size and signal for next picture */
1189 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1190 is->pictq_rindex = 0;
1192 SDL_LockMutex(is->pictq_mutex);
1194 SDL_CondSignal(is->pictq_cond);
1195 SDL_UnlockMutex(is->pictq_mutex);
1200 if(is->subtitle_st) {
1201 if (is->subtitle_stream_changed) {
1202 SDL_LockMutex(is->subpq_mutex);
1204 while (is->subpq_size) {
1205 free_subpicture(&is->subpq[is->subpq_rindex]);
1207 /* update queue size and signal for next picture */
1208 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1209 is->subpq_rindex = 0;
1213 is->subtitle_stream_changed = 0;
1215 SDL_CondSignal(is->subpq_cond);
1216 SDL_UnlockMutex(is->subpq_mutex);
1218 if (is->subpq_size > 0) {
1219 sp = &is->subpq[is->subpq_rindex];
1221 if (is->subpq_size > 1)
1222 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1226 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1227 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1229 free_subpicture(sp);
1231 /* update queue size and signal for next picture */
1232 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1233 is->subpq_rindex = 0;
1235 SDL_LockMutex(is->subpq_mutex);
1237 SDL_CondSignal(is->subpq_cond);
1238 SDL_UnlockMutex(is->subpq_mutex);
1244 /* display picture */
1247 /* update queue size and signal for next picture */
1248 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1249 is->pictq_rindex = 0;
1251 SDL_LockMutex(is->pictq_mutex);
1253 SDL_CondSignal(is->pictq_cond);
1254 SDL_UnlockMutex(is->pictq_mutex);
1256 } else if (is->audio_st) {
1257 /* draw the next audio frame */
1259 /* if only audio stream, then display the audio bars (better
1260 than nothing, just to test the implementation */
1262 /* display picture */
1266 static int64_t last_time;
1268 int aqsize, vqsize, sqsize;
1271 cur_time = av_gettime();
1272 if (!last_time || (cur_time - last_time) >= 30000) {
1277 aqsize = is->audioq.size;
1279 vqsize = is->videoq.size;
1280 if (is->subtitle_st)
1281 sqsize = is->subtitleq.size;
1283 if (is->audio_st && is->video_st)
1284 av_diff = get_audio_clock(is) - get_video_clock(is);
1285 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1286 get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1288 last_time = cur_time;
1293 /* allocate a picture (needs to do that in main thread to avoid
1294 potential locking problems */
1295 static void alloc_picture(void *opaque)
1297 VideoState *is = opaque;
1300 vp = &is->pictq[is->pictq_windex];
1303 SDL_FreeYUVOverlay(vp->bmp);
1307 avfilter_unref_buffer(vp->picref);
1310 vp->width = is->out_video_filter->inputs[0]->w;
1311 vp->height = is->out_video_filter->inputs[0]->h;
1312 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1314 vp->width = is->video_st->codec->width;
1315 vp->height = is->video_st->codec->height;
1316 vp->pix_fmt = is->video_st->codec->pix_fmt;
1319 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1323 SDL_LockMutex(is->pictq_mutex);
1325 SDL_CondSignal(is->pictq_cond);
1326 SDL_UnlockMutex(is->pictq_mutex);
1331 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1333 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1340 /* wait until we have space to put a new picture */
1341 SDL_LockMutex(is->pictq_mutex);
1343 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1344 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1346 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1347 !is->videoq.abort_request) {
1348 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1350 SDL_UnlockMutex(is->pictq_mutex);
1352 if (is->videoq.abort_request)
1355 vp = &is->pictq[is->pictq_windex];
1357 /* alloc or resize hardware picture buffer */
1360 vp->width != is->out_video_filter->inputs[0]->w ||
1361 vp->height != is->out_video_filter->inputs[0]->h) {
1363 vp->width != is->video_st->codec->width ||
1364 vp->height != is->video_st->codec->height) {
1370 /* the allocation must be done in the main thread to avoid
1372 event.type = FF_ALLOC_EVENT;
1373 event.user.data1 = is;
1374 SDL_PushEvent(&event);
1376 /* wait until the picture is allocated */
1377 SDL_LockMutex(is->pictq_mutex);
1378 while (!vp->allocated && !is->videoq.abort_request) {
1379 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1381 SDL_UnlockMutex(is->pictq_mutex);
1383 if (is->videoq.abort_request)
1387 /* if the frame is not skipped, then display it */
1392 avfilter_unref_buffer(vp->picref);
1393 vp->picref = src_frame->opaque;
1396 /* get a pointer on the bitmap */
1397 SDL_LockYUVOverlay (vp->bmp);
1399 dst_pix_fmt = PIX_FMT_YUV420P;
1400 memset(&pict,0,sizeof(AVPicture));
1401 pict.data[0] = vp->bmp->pixels[0];
1402 pict.data[1] = vp->bmp->pixels[2];
1403 pict.data[2] = vp->bmp->pixels[1];
1405 pict.linesize[0] = vp->bmp->pitches[0];
1406 pict.linesize[1] = vp->bmp->pitches[2];
1407 pict.linesize[2] = vp->bmp->pitches[1];
1410 pict_src.data[0] = src_frame->data[0];
1411 pict_src.data[1] = src_frame->data[1];
1412 pict_src.data[2] = src_frame->data[2];
1414 pict_src.linesize[0] = src_frame->linesize[0];
1415 pict_src.linesize[1] = src_frame->linesize[1];
1416 pict_src.linesize[2] = src_frame->linesize[2];
1418 //FIXME use direct rendering
1419 av_picture_copy(&pict, &pict_src,
1420 vp->pix_fmt, vp->width, vp->height);
1422 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1423 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1424 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1425 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1426 if (is->img_convert_ctx == NULL) {
1427 fprintf(stderr, "Cannot initialize the conversion context\n");
1430 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1431 0, vp->height, pict.data, pict.linesize);
1433 /* update the bitmap content */
1434 SDL_UnlockYUVOverlay(vp->bmp);
1439 /* now we can update the picture count */
1440 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1441 is->pictq_windex = 0;
1442 SDL_LockMutex(is->pictq_mutex);
1443 vp->target_clock= compute_target_time(vp->pts, is);
1446 SDL_UnlockMutex(is->pictq_mutex);
1452 * compute the exact PTS for the picture if it is omitted in the stream
1453 * @param pts1 the dts of the pkt / pts of the frame
1455 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1457 double frame_delay, pts;
1462 /* update video clock with pts, if present */
1463 is->video_clock = pts;
1465 pts = is->video_clock;
1467 /* update video clock for next frame */
1468 frame_delay = av_q2d(is->video_st->codec->time_base);
1469 /* for MPEG2, the frame can be repeated, so we update the
1470 clock accordingly */
1471 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1472 is->video_clock += frame_delay;
1474 #if defined(DEBUG_SYNC) && 0
1475 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1476 av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1478 return queue_picture(is, src_frame, pts, pos);
1481 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1483 int len1, got_picture, i;
1485 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1488 if(pkt->data == flush_pkt.data){
1489 avcodec_flush_buffers(is->video_st->codec);
1491 SDL_LockMutex(is->pictq_mutex);
1492 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1493 for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1494 is->pictq[i].target_clock= 0;
1496 while (is->pictq_size && !is->videoq.abort_request) {
1497 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1499 is->video_current_pos= -1;
1500 SDL_UnlockMutex(is->pictq_mutex);
1502 is->last_dts_for_fault_detection=
1503 is->last_pts_for_fault_detection= INT64_MIN;
1504 is->frame_last_pts= AV_NOPTS_VALUE;
1505 is->frame_last_delay = 0;
1506 is->frame_timer = (double)av_gettime() / 1000000.0;
1508 is->skip_frames_index= 0;
1512 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1513 this packet, if any */
1514 is->video_st->codec->reordered_opaque= pkt->pts;
1515 len1 = avcodec_decode_video2(is->video_st->codec,
1516 frame, &got_picture,
1520 if(pkt->dts != AV_NOPTS_VALUE){
1521 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1522 is->last_dts_for_fault_detection= pkt->dts;
1524 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1525 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1526 is->last_pts_for_fault_detection= frame->reordered_opaque;
1530 if( ( decoder_reorder_pts==1
1531 || (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
1532 || pkt->dts == AV_NOPTS_VALUE)
1533 && frame->reordered_opaque != AV_NOPTS_VALUE)
1534 *pts= frame->reordered_opaque;
1535 else if(pkt->dts != AV_NOPTS_VALUE)
1543 is->skip_frames_index += 1;
1544 if(is->skip_frames_index >= is->skip_frames){
1545 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1560 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1562 AVFilterContext *ctx = codec->opaque;
1563 AVFilterBufferRef *ref;
1564 int perms = AV_PERM_WRITE;
1565 int i, w, h, stride[4];
1568 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1569 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1570 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1571 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1573 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1577 avcodec_align_dimensions2(codec, &w, &h, stride);
1578 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1582 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1585 ref->video->w = codec->width;
1586 ref->video->h = codec->height;
1587 for(i = 0; i < 4; i ++) {
1588 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1589 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1592 ref->data[i] += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1594 pic->data[i] = ref->data[i];
1595 pic->linesize[i] = ref->linesize[i];
1599 pic->type = FF_BUFFER_TYPE_USER;
1600 pic->reordered_opaque = codec->reordered_opaque;
1604 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1606 memset(pic->data, 0, sizeof(pic->data));
1607 avfilter_unref_buffer(pic->opaque);
1610 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1612 AVFilterBufferRef *ref = pic->opaque;
1614 if (pic->data[0] == NULL) {
1615 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1616 return codec->get_buffer(codec, pic);
1619 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1620 (codec->pix_fmt != ref->format)) {
1621 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1625 pic->reordered_opaque = codec->reordered_opaque;
1629 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1631 FilterPriv *priv = ctx->priv;
1632 AVCodecContext *codec;
1633 if(!opaque) return -1;
1636 codec = priv->is->video_st->codec;
1637 codec->opaque = ctx;
1638 if(codec->codec->capabilities & CODEC_CAP_DR1) {
1640 codec->get_buffer = input_get_buffer;
1641 codec->release_buffer = input_release_buffer;
1642 codec->reget_buffer = input_reget_buffer;
1645 priv->frame = avcodec_alloc_frame();
1650 static void input_uninit(AVFilterContext *ctx)
1652 FilterPriv *priv = ctx->priv;
1653 av_free(priv->frame);
1656 static int input_request_frame(AVFilterLink *link)
1658 FilterPriv *priv = link->src->priv;
1659 AVFilterBufferRef *picref;
1664 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1665 av_free_packet(&pkt);
1670 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1672 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1673 av_picture_data_copy(picref->data, picref->linesize,
1674 priv->frame->data, priv->frame->linesize,
1675 picref->format, link->w, link->h);
1677 av_free_packet(&pkt);
1680 picref->pos = pkt.pos;
1681 picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1682 avfilter_start_frame(link, picref);
1683 avfilter_draw_slice(link, 0, link->h, 1);
1684 avfilter_end_frame(link);
1689 static int input_query_formats(AVFilterContext *ctx)
1691 FilterPriv *priv = ctx->priv;
1692 enum PixelFormat pix_fmts[] = {
1693 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1696 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1700 static int input_config_props(AVFilterLink *link)
1702 FilterPriv *priv = link->src->priv;
1703 AVCodecContext *c = priv->is->video_st->codec;
1706 link->h = c->height;
1711 static AVFilter input_filter =
1713 .name = "ffplay_input",
1715 .priv_size = sizeof(FilterPriv),
1718 .uninit = input_uninit,
1720 .query_formats = input_query_formats,
1722 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1723 .outputs = (AVFilterPad[]) {{ .name = "default",
1724 .type = AVMEDIA_TYPE_VIDEO,
1725 .request_frame = input_request_frame,
1726 .config_props = input_config_props, },
1730 static void output_end_frame(AVFilterLink *link)
1734 static int output_query_formats(AVFilterContext *ctx)
1736 enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1738 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1742 static int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
1743 int64_t *pts, int64_t *pos)
1745 AVFilterBufferRef *pic;
1747 if(avfilter_request_frame(ctx->inputs[0]))
1749 if(!(pic = ctx->inputs[0]->cur_buf))
1751 ctx->inputs[0]->cur_buf = NULL;
1753 frame->opaque = pic;
1757 memcpy(frame->data, pic->data, sizeof(frame->data));
1758 memcpy(frame->linesize, pic->linesize, sizeof(frame->linesize));
1763 static AVFilter output_filter =
1765 .name = "ffplay_output",
1767 .query_formats = output_query_formats,
1769 .inputs = (AVFilterPad[]) {{ .name = "default",
1770 .type = AVMEDIA_TYPE_VIDEO,
1771 .end_frame = output_end_frame,
1772 .min_perms = AV_PERM_READ, },
1774 .outputs = (AVFilterPad[]) {{ .name = NULL }},
1776 #endif /* CONFIG_AVFILTER */
1778 static int video_thread(void *arg)
1780 VideoState *is = arg;
1781 AVFrame *frame= avcodec_alloc_frame();
1788 char sws_flags_str[128];
1789 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1790 AVFilterGraph *graph = av_mallocz(sizeof(AVFilterGraph));
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 (avfilter_open(&filt_src, &input_filter, "src") < 0) goto the_end;
1795 if (avfilter_open(&filt_out, &output_filter, "out") < 0) goto the_end;
1797 if(avfilter_init_filter(filt_src, NULL, is)) goto the_end;
1798 if(avfilter_init_filter(filt_out, NULL, frame)) goto the_end;
1802 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1803 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1805 outputs->name = av_strdup("in");
1806 outputs->filter = filt_src;
1807 outputs->pad_idx = 0;
1808 outputs->next = NULL;
1810 inputs->name = av_strdup("out");
1811 inputs->filter = filt_out;
1812 inputs->pad_idx = 0;
1813 inputs->next = NULL;
1815 if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1817 av_freep(&vfilters);
1819 if(avfilter_link(filt_src, 0, filt_out, 0) < 0) goto the_end;
1821 avfilter_graph_add_filter(graph, filt_src);
1822 avfilter_graph_add_filter(graph, filt_out);
1824 if(avfilter_graph_check_validity(graph, NULL)) goto the_end;
1825 if(avfilter_graph_config_formats(graph, NULL)) goto the_end;
1826 if(avfilter_graph_config_links(graph, NULL)) goto the_end;
1828 is->out_video_filter = filt_out;
1832 #if !CONFIG_AVFILTER
1835 while (is->paused && !is->videoq.abort_request)
1838 ret = get_filtered_video_frame(filt_out, frame, &pts_int, &pos);
1840 ret = get_video_frame(is, frame, &pts_int, &pkt);
1843 if (ret < 0) goto the_end;
1848 pts = pts_int*av_q2d(is->video_st->time_base);
1851 ret = output_picture2(is, frame, pts, pos);
1853 ret = output_picture2(is, frame, pts, pkt.pos);
1854 av_free_packet(&pkt);
1861 stream_pause(cur_stream);
1865 avfilter_graph_destroy(graph);
1872 static int subtitle_thread(void *arg)
1874 VideoState *is = arg;
1876 AVPacket pkt1, *pkt = &pkt1;
1877 int len1, got_subtitle;
1880 int r, g, b, y, u, v, a;
1883 while (is->paused && !is->subtitleq.abort_request) {
1886 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1889 if(pkt->data == flush_pkt.data){
1890 avcodec_flush_buffers(is->subtitle_st->codec);
1893 SDL_LockMutex(is->subpq_mutex);
1894 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1895 !is->subtitleq.abort_request) {
1896 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1898 SDL_UnlockMutex(is->subpq_mutex);
1900 if (is->subtitleq.abort_request)
1903 sp = &is->subpq[is->subpq_windex];
1905 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1906 this packet, if any */
1908 if (pkt->pts != AV_NOPTS_VALUE)
1909 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1911 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1912 &sp->sub, &got_subtitle,
1916 if (got_subtitle && sp->sub.format == 0) {
1919 for (i = 0; i < sp->sub.num_rects; i++)
1921 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1923 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1924 y = RGB_TO_Y_CCIR(r, g, b);
1925 u = RGB_TO_U_CCIR(r, g, b, 0);
1926 v = RGB_TO_V_CCIR(r, g, b, 0);
1927 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1931 /* now we can update the picture count */
1932 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1933 is->subpq_windex = 0;
1934 SDL_LockMutex(is->subpq_mutex);
1936 SDL_UnlockMutex(is->subpq_mutex);
1938 av_free_packet(pkt);
1941 // stream_pause(cur_stream);
1947 /* copy samples for viewing in editor window */
1948 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1950 int size, len, channels;
1952 channels = is->audio_st->codec->channels;
1954 size = samples_size / sizeof(short);
1956 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1959 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1961 is->sample_array_index += len;
1962 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1963 is->sample_array_index = 0;
1968 /* return the new audio buffer size (samples can be added or deleted
1969 to get better sync if video or external master clock) */
1970 static int synchronize_audio(VideoState *is, short *samples,
1971 int samples_size1, double pts)
1973 int n, samples_size;
1976 n = 2 * is->audio_st->codec->channels;
1977 samples_size = samples_size1;
1979 /* if not master, then we try to remove or add samples to correct the clock */
1980 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1981 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1982 double diff, avg_diff;
1983 int wanted_size, min_size, max_size, nb_samples;
1985 ref_clock = get_master_clock(is);
1986 diff = get_audio_clock(is) - ref_clock;
1988 if (diff < AV_NOSYNC_THRESHOLD) {
1989 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1990 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1991 /* not enough measures to have a correct estimate */
1992 is->audio_diff_avg_count++;
1994 /* estimate the A-V difference */
1995 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1997 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1998 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1999 nb_samples = samples_size / n;
2001 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2002 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2003 if (wanted_size < min_size)
2004 wanted_size = min_size;
2005 else if (wanted_size > max_size)
2006 wanted_size = max_size;
2008 /* add or remove samples to correction the synchro */
2009 if (wanted_size < samples_size) {
2010 /* remove samples */
2011 samples_size = wanted_size;
2012 } else if (wanted_size > samples_size) {
2013 uint8_t *samples_end, *q;
2017 nb = (samples_size - wanted_size);
2018 samples_end = (uint8_t *)samples + samples_size - n;
2019 q = samples_end + n;
2021 memcpy(q, samples_end, n);
2025 samples_size = wanted_size;
2029 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2030 diff, avg_diff, samples_size - samples_size1,
2031 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2035 /* too big difference : may be initial PTS errors, so
2037 is->audio_diff_avg_count = 0;
2038 is->audio_diff_cum = 0;
2042 return samples_size;
2045 /* decode one audio frame and returns its uncompressed size */
2046 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2048 AVPacket *pkt_temp = &is->audio_pkt_temp;
2049 AVPacket *pkt = &is->audio_pkt;
2050 AVCodecContext *dec= is->audio_st->codec;
2051 int n, len1, data_size;
2055 /* NOTE: the audio packet can contain several frames */
2056 while (pkt_temp->size > 0) {
2057 data_size = sizeof(is->audio_buf1);
2058 len1 = avcodec_decode_audio3(dec,
2059 (int16_t *)is->audio_buf1, &data_size,
2062 /* if error, we skip the frame */
2067 pkt_temp->data += len1;
2068 pkt_temp->size -= len1;
2072 if (dec->sample_fmt != is->audio_src_fmt) {
2073 if (is->reformat_ctx)
2074 av_audio_convert_free(is->reformat_ctx);
2075 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
2076 dec->sample_fmt, 1, NULL, 0);
2077 if (!is->reformat_ctx) {
2078 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2079 avcodec_get_sample_fmt_name(dec->sample_fmt),
2080 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
2083 is->audio_src_fmt= dec->sample_fmt;
2086 if (is->reformat_ctx) {
2087 const void *ibuf[6]= {is->audio_buf1};
2088 void *obuf[6]= {is->audio_buf2};
2089 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
2090 int ostride[6]= {2};
2091 int len= data_size/istride[0];
2092 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2093 printf("av_audio_convert() failed\n");
2096 is->audio_buf= is->audio_buf2;
2097 /* FIXME: existing code assume that data_size equals framesize*channels*2
2098 remove this legacy cruft */
2101 is->audio_buf= is->audio_buf1;
2104 /* if no pts, then compute it */
2105 pts = is->audio_clock;
2107 n = 2 * dec->channels;
2108 is->audio_clock += (double)data_size /
2109 (double)(n * dec->sample_rate);
2110 #if defined(DEBUG_SYNC)
2112 static double last_clock;
2113 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2114 is->audio_clock - last_clock,
2115 is->audio_clock, pts);
2116 last_clock = is->audio_clock;
2122 /* free the current packet */
2124 av_free_packet(pkt);
2126 if (is->paused || is->audioq.abort_request) {
2130 /* read next packet */
2131 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2133 if(pkt->data == flush_pkt.data){
2134 avcodec_flush_buffers(dec);
2138 pkt_temp->data = pkt->data;
2139 pkt_temp->size = pkt->size;
2141 /* if update the audio clock with the pts */
2142 if (pkt->pts != AV_NOPTS_VALUE) {
2143 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2148 /* get the current audio output buffer size, in samples. With SDL, we
2149 cannot have a precise information */
2150 static int audio_write_get_buf_size(VideoState *is)
2152 return is->audio_buf_size - is->audio_buf_index;
2156 /* prepare a new audio buffer */
2157 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2159 VideoState *is = opaque;
2160 int audio_size, len1;
2163 audio_callback_time = av_gettime();
2166 if (is->audio_buf_index >= is->audio_buf_size) {
2167 audio_size = audio_decode_frame(is, &pts);
2168 if (audio_size < 0) {
2169 /* if error, just output silence */
2170 is->audio_buf = is->audio_buf1;
2171 is->audio_buf_size = 1024;
2172 memset(is->audio_buf, 0, is->audio_buf_size);
2175 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2176 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2178 is->audio_buf_size = audio_size;
2180 is->audio_buf_index = 0;
2182 len1 = is->audio_buf_size - is->audio_buf_index;
2185 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2188 is->audio_buf_index += len1;
2192 /* open a given stream. Return 0 if OK */
2193 static int stream_component_open(VideoState *is, int stream_index)
2195 AVFormatContext *ic = is->ic;
2196 AVCodecContext *avctx;
2198 SDL_AudioSpec wanted_spec, spec;
2200 if (stream_index < 0 || stream_index >= ic->nb_streams)
2202 avctx = ic->streams[stream_index]->codec;
2204 /* prepare audio output */
2205 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2206 if (avctx->channels > 0) {
2207 avctx->request_channels = FFMIN(2, avctx->channels);
2209 avctx->request_channels = 2;
2213 codec = avcodec_find_decoder(avctx->codec_id);
2214 avctx->debug_mv = debug_mv;
2215 avctx->debug = debug;
2216 avctx->workaround_bugs = workaround_bugs;
2217 avctx->lowres = lowres;
2218 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2219 avctx->idct_algo= idct;
2220 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2221 avctx->skip_frame= skip_frame;
2222 avctx->skip_idct= skip_idct;
2223 avctx->skip_loop_filter= skip_loop_filter;
2224 avctx->error_recognition= error_recognition;
2225 avctx->error_concealment= error_concealment;
2226 avcodec_thread_init(avctx, thread_count);
2228 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0);
2231 avcodec_open(avctx, codec) < 0)
2234 /* prepare audio output */
2235 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2236 wanted_spec.freq = avctx->sample_rate;
2237 wanted_spec.format = AUDIO_S16SYS;
2238 wanted_spec.channels = avctx->channels;
2239 wanted_spec.silence = 0;
2240 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2241 wanted_spec.callback = sdl_audio_callback;
2242 wanted_spec.userdata = is;
2243 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2244 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2247 is->audio_hw_buf_size = spec.size;
2248 is->audio_src_fmt= SAMPLE_FMT_S16;
2251 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2252 switch(avctx->codec_type) {
2253 case AVMEDIA_TYPE_AUDIO:
2254 is->audio_stream = stream_index;
2255 is->audio_st = ic->streams[stream_index];
2256 is->audio_buf_size = 0;
2257 is->audio_buf_index = 0;
2259 /* init averaging filter */
2260 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2261 is->audio_diff_avg_count = 0;
2262 /* since we do not have a precise anough audio fifo fullness,
2263 we correct audio sync only if larger than this threshold */
2264 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2266 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2267 packet_queue_init(&is->audioq);
2270 case AVMEDIA_TYPE_VIDEO:
2271 is->video_stream = stream_index;
2272 is->video_st = ic->streams[stream_index];
2274 // is->video_current_pts_time = av_gettime();
2276 packet_queue_init(&is->videoq);
2277 is->video_tid = SDL_CreateThread(video_thread, is);
2279 case AVMEDIA_TYPE_SUBTITLE:
2280 is->subtitle_stream = stream_index;
2281 is->subtitle_st = ic->streams[stream_index];
2282 packet_queue_init(&is->subtitleq);
2284 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2292 static void stream_component_close(VideoState *is, int stream_index)
2294 AVFormatContext *ic = is->ic;
2295 AVCodecContext *avctx;
2297 if (stream_index < 0 || stream_index >= ic->nb_streams)
2299 avctx = ic->streams[stream_index]->codec;
2301 switch(avctx->codec_type) {
2302 case AVMEDIA_TYPE_AUDIO:
2303 packet_queue_abort(&is->audioq);
2307 packet_queue_end(&is->audioq);
2308 if (is->reformat_ctx)
2309 av_audio_convert_free(is->reformat_ctx);
2310 is->reformat_ctx = NULL;
2312 case AVMEDIA_TYPE_VIDEO:
2313 packet_queue_abort(&is->videoq);
2315 /* note: we also signal this mutex to make sure we deblock the
2316 video thread in all cases */
2317 SDL_LockMutex(is->pictq_mutex);
2318 SDL_CondSignal(is->pictq_cond);
2319 SDL_UnlockMutex(is->pictq_mutex);
2321 SDL_WaitThread(is->video_tid, NULL);
2323 packet_queue_end(&is->videoq);
2325 case AVMEDIA_TYPE_SUBTITLE:
2326 packet_queue_abort(&is->subtitleq);
2328 /* note: we also signal this mutex to make sure we deblock the
2329 video thread in all cases */
2330 SDL_LockMutex(is->subpq_mutex);
2331 is->subtitle_stream_changed = 1;
2333 SDL_CondSignal(is->subpq_cond);
2334 SDL_UnlockMutex(is->subpq_mutex);
2336 SDL_WaitThread(is->subtitle_tid, NULL);
2338 packet_queue_end(&is->subtitleq);
2344 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2345 avcodec_close(avctx);
2346 switch(avctx->codec_type) {
2347 case AVMEDIA_TYPE_AUDIO:
2348 is->audio_st = NULL;
2349 is->audio_stream = -1;
2351 case AVMEDIA_TYPE_VIDEO:
2352 is->video_st = NULL;
2353 is->video_stream = -1;
2355 case AVMEDIA_TYPE_SUBTITLE:
2356 is->subtitle_st = NULL;
2357 is->subtitle_stream = -1;
2364 /* since we have only one decoding thread, we can use a global
2365 variable instead of a thread local variable */
2366 static VideoState *global_video_state;
2368 static int decode_interrupt_cb(void)
2370 return (global_video_state && global_video_state->abort_request);
2373 /* this thread gets the stream from the disk or the network */
2374 static int decode_thread(void *arg)
2376 VideoState *is = arg;
2377 AVFormatContext *ic;
2379 int st_index[AVMEDIA_TYPE_NB];
2380 int st_count[AVMEDIA_TYPE_NB]={0};
2381 int st_best_packet_count[AVMEDIA_TYPE_NB];
2382 AVPacket pkt1, *pkt = &pkt1;
2383 AVFormatParameters params, *ap = ¶ms;
2385 int pkt_in_play_range = 0;
2387 ic = avformat_alloc_context();
2389 memset(st_index, -1, sizeof(st_index));
2390 memset(st_best_packet_count, -1, sizeof(st_best_packet_count));
2391 is->video_stream = -1;
2392 is->audio_stream = -1;
2393 is->subtitle_stream = -1;
2395 global_video_state = is;
2396 url_set_interrupt_cb(decode_interrupt_cb);
2398 memset(ap, 0, sizeof(*ap));
2400 ap->prealloced_context = 1;
2401 ap->width = frame_width;
2402 ap->height= frame_height;
2403 ap->time_base= (AVRational){1, 25};
2404 ap->pix_fmt = frame_pix_fmt;
2406 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2408 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2410 print_error(is->filename, err);
2417 ic->flags |= AVFMT_FLAG_GENPTS;
2419 err = av_find_stream_info(ic);
2421 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2426 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2429 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2431 /* if seeking requested, we execute it */
2432 if (start_time != AV_NOPTS_VALUE) {
2435 timestamp = start_time;
2436 /* add the stream start time */
2437 if (ic->start_time != AV_NOPTS_VALUE)
2438 timestamp += ic->start_time;
2439 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2441 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2442 is->filename, (double)timestamp / AV_TIME_BASE);
2446 for(i = 0; i < ic->nb_streams; i++) {
2447 AVStream *st= ic->streams[i];
2448 AVCodecContext *avctx = st->codec;
2449 ic->streams[i]->discard = AVDISCARD_ALL;
2450 if(avctx->codec_type >= (unsigned)AVMEDIA_TYPE_NB)
2452 if(st_count[avctx->codec_type]++ != wanted_stream[avctx->codec_type] && wanted_stream[avctx->codec_type] >= 0)
2455 if(st_best_packet_count[avctx->codec_type] >= st->codec_info_nb_frames)
2457 st_best_packet_count[avctx->codec_type]= st->codec_info_nb_frames;
2459 switch(avctx->codec_type) {
2460 case AVMEDIA_TYPE_AUDIO:
2462 st_index[AVMEDIA_TYPE_AUDIO] = i;
2464 case AVMEDIA_TYPE_VIDEO:
2465 case AVMEDIA_TYPE_SUBTITLE:
2467 st_index[avctx->codec_type] = i;
2474 dump_format(ic, 0, is->filename, 0);
2477 /* open the streams */
2478 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2479 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2483 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2484 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2486 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2488 if (!display_disable)
2492 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2493 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2496 if (is->video_stream < 0 && is->audio_stream < 0) {
2497 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2503 if (is->abort_request)
2505 if (is->paused != is->last_paused) {
2506 is->last_paused = is->paused;
2508 is->read_pause_return= av_read_pause(ic);
2512 #if CONFIG_RTSP_DEMUXER
2513 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2514 /* wait 10 ms to avoid trying to get another packet */
2521 int64_t seek_target= is->seek_pos;
2522 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2523 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2524 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2525 // of the seek_pos/seek_rel variables
2527 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2529 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2531 if (is->audio_stream >= 0) {
2532 packet_queue_flush(&is->audioq);
2533 packet_queue_put(&is->audioq, &flush_pkt);
2535 if (is->subtitle_stream >= 0) {
2536 packet_queue_flush(&is->subtitleq);
2537 packet_queue_put(&is->subtitleq, &flush_pkt);
2539 if (is->video_stream >= 0) {
2540 packet_queue_flush(&is->videoq);
2541 packet_queue_put(&is->videoq, &flush_pkt);
2548 /* if the queue are full, no need to read more */
2549 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2550 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2551 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2552 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2557 if(url_feof(ic->pb) || eof) {
2558 if(is->video_stream >= 0){
2559 av_init_packet(pkt);
2562 pkt->stream_index= is->video_stream;
2563 packet_queue_put(&is->videoq, pkt);
2566 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2567 if(loop!=1 && (!loop || --loop)){
2568 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2576 ret = av_read_frame(ic, pkt);
2578 if (ret == AVERROR_EOF)
2580 if (url_ferror(ic->pb))
2582 SDL_Delay(100); /* wait for user event */
2585 /* check if packet is in play range specified by user, then queue, otherwise discard */
2586 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2587 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2588 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2589 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2590 <= ((double)duration/1000000);
2591 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2592 packet_queue_put(&is->audioq, pkt);
2593 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2594 packet_queue_put(&is->videoq, pkt);
2595 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2596 packet_queue_put(&is->subtitleq, pkt);
2598 av_free_packet(pkt);
2601 /* wait until the end */
2602 while (!is->abort_request) {
2608 /* disable interrupting */
2609 global_video_state = NULL;
2611 /* close each stream */
2612 if (is->audio_stream >= 0)
2613 stream_component_close(is, is->audio_stream);
2614 if (is->video_stream >= 0)
2615 stream_component_close(is, is->video_stream);
2616 if (is->subtitle_stream >= 0)
2617 stream_component_close(is, is->subtitle_stream);
2619 av_close_input_file(is->ic);
2620 is->ic = NULL; /* safety */
2622 url_set_interrupt_cb(NULL);
2627 event.type = FF_QUIT_EVENT;
2628 event.user.data1 = is;
2629 SDL_PushEvent(&event);
2634 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2638 is = av_mallocz(sizeof(VideoState));
2641 av_strlcpy(is->filename, filename, sizeof(is->filename));
2642 is->iformat = iformat;
2646 /* start video display */
2647 is->pictq_mutex = SDL_CreateMutex();
2648 is->pictq_cond = SDL_CreateCond();
2650 is->subpq_mutex = SDL_CreateMutex();
2651 is->subpq_cond = SDL_CreateCond();
2653 is->av_sync_type = av_sync_type;
2654 is->parse_tid = SDL_CreateThread(decode_thread, is);
2655 if (!is->parse_tid) {
2662 static void stream_close(VideoState *is)
2666 /* XXX: use a special url_shutdown call to abort parse cleanly */
2667 is->abort_request = 1;
2668 SDL_WaitThread(is->parse_tid, NULL);
2669 SDL_WaitThread(is->refresh_tid, NULL);
2671 /* free all pictures */
2672 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
2676 avfilter_unref_buffer(vp->picref);
2681 SDL_FreeYUVOverlay(vp->bmp);
2685 SDL_DestroyMutex(is->pictq_mutex);
2686 SDL_DestroyCond(is->pictq_cond);
2687 SDL_DestroyMutex(is->subpq_mutex);
2688 SDL_DestroyCond(is->subpq_cond);
2689 #if !CONFIG_AVFILTER
2690 if (is->img_convert_ctx)
2691 sws_freeContext(is->img_convert_ctx);
2696 static void stream_cycle_channel(VideoState *is, int codec_type)
2698 AVFormatContext *ic = is->ic;
2699 int start_index, stream_index;
2702 if (codec_type == AVMEDIA_TYPE_VIDEO)
2703 start_index = is->video_stream;
2704 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2705 start_index = is->audio_stream;
2707 start_index = is->subtitle_stream;
2708 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2710 stream_index = start_index;
2712 if (++stream_index >= is->ic->nb_streams)
2714 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2721 if (stream_index == start_index)
2723 st = ic->streams[stream_index];
2724 if (st->codec->codec_type == codec_type) {
2725 /* check that parameters are OK */
2726 switch(codec_type) {
2727 case AVMEDIA_TYPE_AUDIO:
2728 if (st->codec->sample_rate != 0 &&
2729 st->codec->channels != 0)
2732 case AVMEDIA_TYPE_VIDEO:
2733 case AVMEDIA_TYPE_SUBTITLE:
2741 stream_component_close(is, start_index);
2742 stream_component_open(is, stream_index);
2746 static void toggle_full_screen(void)
2748 is_full_screen = !is_full_screen;
2749 if (!fs_screen_width) {
2750 /* use default SDL method */
2751 // SDL_WM_ToggleFullScreen(screen);
2753 video_open(cur_stream);
2756 static void toggle_pause(void)
2759 stream_pause(cur_stream);
2763 static void step_to_next_frame(void)
2766 /* if the stream is paused unpause it, then step */
2767 if (cur_stream->paused)
2768 stream_pause(cur_stream);
2773 static void do_exit(void)
2777 stream_close(cur_stream);
2780 for (i = 0; i < AVMEDIA_TYPE_NB; i++)
2781 av_free(avcodec_opts[i]);
2782 av_free(avformat_opts);
2793 static void toggle_audio_display(void)
2796 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2797 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2798 fill_rectangle(screen,
2799 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2801 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2805 /* handle an event sent by the GUI */
2806 static void event_loop(void)
2809 double incr, pos, frac;
2813 SDL_WaitEvent(&event);
2814 switch(event.type) {
2816 if (exit_on_keydown) {
2820 switch(event.key.keysym.sym) {
2826 toggle_full_screen();
2832 case SDLK_s: //S: Step to next frame
2833 step_to_next_frame();
2837 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2841 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2845 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2848 toggle_audio_display();
2863 if (seek_by_bytes) {
2864 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2865 pos= cur_stream->video_current_pos;
2866 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2867 pos= cur_stream->audio_pkt.pos;
2869 pos = url_ftell(cur_stream->ic->pb);
2870 if (cur_stream->ic->bit_rate)
2871 incr *= cur_stream->ic->bit_rate / 8.0;
2875 stream_seek(cur_stream, pos, incr, 1);
2877 pos = get_master_clock(cur_stream);
2879 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2887 case SDL_MOUSEBUTTONDOWN:
2888 if (exit_on_mousedown) {
2892 case SDL_MOUSEMOTION:
2893 if(event.type ==SDL_MOUSEBUTTONDOWN){
2896 if(event.motion.state != SDL_PRESSED)
2901 if(seek_by_bytes || cur_stream->ic->duration<=0){
2902 uint64_t size= url_fsize(cur_stream->ic->pb);
2903 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2907 int tns, thh, tmm, tss;
2908 tns = cur_stream->ic->duration/1000000LL;
2910 tmm = (tns%3600)/60;
2912 frac = x/cur_stream->width;
2917 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2918 hh, mm, ss, thh, tmm, tss);
2919 ts = frac*cur_stream->ic->duration;
2920 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2921 ts += cur_stream->ic->start_time;
2922 stream_seek(cur_stream, ts, 0, 0);
2926 case SDL_VIDEORESIZE:
2928 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2929 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2930 screen_width = cur_stream->width = event.resize.w;
2931 screen_height= cur_stream->height= event.resize.h;
2938 case FF_ALLOC_EVENT:
2939 video_open(event.user.data1);
2940 alloc_picture(event.user.data1);
2942 case FF_REFRESH_EVENT:
2943 video_refresh_timer(event.user.data1);
2944 cur_stream->refresh=0;
2952 static void opt_frame_size(const char *arg)
2954 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2955 fprintf(stderr, "Incorrect frame size\n");
2958 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2959 fprintf(stderr, "Frame size must be a multiple of 2\n");
2964 static int opt_width(const char *opt, const char *arg)
2966 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2970 static int opt_height(const char *opt, const char *arg)
2972 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2976 static void opt_format(const char *arg)
2978 file_iformat = av_find_input_format(arg);
2979 if (!file_iformat) {
2980 fprintf(stderr, "Unknown input format: %s\n", arg);
2985 static void opt_frame_pix_fmt(const char *arg)
2987 frame_pix_fmt = av_get_pix_fmt(arg);
2990 static int opt_sync(const char *opt, const char *arg)
2992 if (!strcmp(arg, "audio"))
2993 av_sync_type = AV_SYNC_AUDIO_MASTER;
2994 else if (!strcmp(arg, "video"))
2995 av_sync_type = AV_SYNC_VIDEO_MASTER;
2996 else if (!strcmp(arg, "ext"))
2997 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2999 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
3005 static int opt_seek(const char *opt, const char *arg)
3007 start_time = parse_time_or_die(opt, arg, 1);
3011 static int opt_duration(const char *opt, const char *arg)
3013 duration = parse_time_or_die(opt, arg, 1);
3017 static int opt_debug(const char *opt, const char *arg)
3019 av_log_set_level(99);
3020 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3024 static int opt_vismv(const char *opt, const char *arg)
3026 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
3030 static int opt_thread_count(const char *opt, const char *arg)
3032 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3034 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3039 static const OptionDef options[] = {
3040 #include "cmdutils_common_opts.h"
3041 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3042 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3043 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3044 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3045 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3046 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3047 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3048 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3049 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3050 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3051 { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
3052 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3053 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3054 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3055 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3056 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3057 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3058 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3059 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3060 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3061 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3062 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3063 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3064 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3065 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3066 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3067 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
3068 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
3069 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
3070 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3071 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3072 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3073 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3074 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3075 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3076 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3077 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3079 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3081 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3082 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3086 static void show_usage(void)
3088 printf("Simple media player\n");
3089 printf("usage: ffplay [options] input_file\n");
3093 static void show_help(void)
3096 show_help_options(options, "Main options:\n",
3098 show_help_options(options, "\nAdvanced options:\n",
3099 OPT_EXPERT, OPT_EXPERT);
3100 printf("\nWhile playing:\n"
3102 "f toggle full screen\n"
3104 "a cycle audio channel\n"
3105 "v cycle video channel\n"
3106 "t cycle subtitle channel\n"
3107 "w show audio waves\n"
3108 "s activate frame-step mode\n"
3109 "left/right seek backward/forward 10 seconds\n"
3110 "down/up seek backward/forward 1 minute\n"
3111 "mouse click seek to percentage in file corresponding to fraction of width\n"
3115 static void opt_input_file(const char *filename)
3117 if (input_filename) {
3118 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3119 filename, input_filename);
3122 if (!strcmp(filename, "-"))
3124 input_filename = filename;
3127 /* Called from the main */
3128 int main(int argc, char **argv)
3132 /* register all codecs, demux and protocols */
3133 avcodec_register_all();
3135 avdevice_register_all();
3138 avfilter_register_all();
3142 for(i=0; i<AVMEDIA_TYPE_NB; i++){
3143 avcodec_opts[i]= avcodec_alloc_context2(i);
3145 avformat_opts = avformat_alloc_context();
3146 #if !CONFIG_AVFILTER
3147 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
3152 parse_options(argc, argv, options, opt_input_file);
3154 if (!input_filename) {
3156 fprintf(stderr, "An input file must be specified\n");
3157 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3161 if (display_disable) {
3164 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3165 #if !defined(__MINGW32__) && !defined(__APPLE__)
3166 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3168 if (SDL_Init (flags)) {
3169 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3173 if (!display_disable) {
3174 #if HAVE_SDL_VIDEO_SIZE
3175 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3176 fs_screen_width = vi->current_w;
3177 fs_screen_height = vi->current_h;
3181 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3182 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3183 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3185 av_init_packet(&flush_pkt);
3186 flush_pkt.data= "FLUSH";
3188 cur_stream = stream_open(input_filename, file_iformat);