2 * FFplay : Simple Media Player based on the FFmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #define _XOPEN_SOURCE 600
28 #include "libavutil/avstring.h"
29 #include "libavutil/colorspace.h"
30 #include "libavutil/pixdesc.h"
31 #include "libavcore/parseutils.h"
32 #include "libavformat/avformat.h"
33 #include "libavdevice/avdevice.h"
34 #include "libswscale/swscale.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavcodec/opt.h"
37 #include "libavcodec/avfft.h"
40 # include "libavfilter/avfilter.h"
41 # include "libavfilter/avfiltergraph.h"
42 # include "libavfilter/graphparser.h"
48 #include <SDL_thread.h>
51 #undef main /* We don't want SDL to override our main() */
57 const char program_name[] = "FFplay";
58 const int program_birth_year = 2003;
62 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
63 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
66 /* SDL audio buffer size, in samples. Should be small to have precise
67 A/V sync as SDL does not have hardware buffer fullness info. */
68 #define SDL_AUDIO_BUFFER_SIZE 1024
70 /* no AV sync correction is done if below the AV sync threshold */
71 #define AV_SYNC_THRESHOLD 0.01
72 /* no AV correction is done if too big error */
73 #define AV_NOSYNC_THRESHOLD 10.0
75 #define FRAME_SKIP_FACTOR 0.05
77 /* maximum audio speed change to get correct sync */
78 #define SAMPLE_CORRECTION_PERCENT_MAX 10
80 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
81 #define AUDIO_DIFF_AVG_NB 20
83 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
84 #define SAMPLE_ARRAY_SIZE (2*65536)
86 static int sws_flags = SWS_BICUBIC;
88 typedef struct PacketQueue {
89 AVPacketList *first_pkt, *last_pkt;
97 #define VIDEO_PICTURE_QUEUE_SIZE 2
98 #define SUBPICTURE_QUEUE_SIZE 4
100 typedef struct VideoPicture {
101 double pts; ///<presentation time stamp for this picture
102 double target_clock; ///<av_gettime() time at which this should be displayed ideally
103 int64_t pos; ///<byte position in file
105 int width, height; /* source height & width */
107 enum PixelFormat pix_fmt;
110 AVFilterBufferRef *picref;
114 typedef struct SubPicture {
115 double pts; /* presentation time stamp for this picture */
120 AV_SYNC_AUDIO_MASTER, /* default choice */
121 AV_SYNC_VIDEO_MASTER,
122 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
125 typedef struct VideoState {
126 SDL_Thread *parse_tid;
127 SDL_Thread *video_tid;
128 SDL_Thread *refresh_tid;
129 AVInputFormat *iformat;
138 int read_pause_return;
140 int dtg_active_format;
145 double external_clock; /* external clock base */
146 int64_t external_clock_time;
149 double audio_diff_cum; /* used for AV difference average computation */
150 double audio_diff_avg_coef;
151 double audio_diff_threshold;
152 int audio_diff_avg_count;
155 int audio_hw_buf_size;
156 /* samples output by the codec. we reserve more space for avsync
158 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
159 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
161 unsigned int audio_buf_size; /* in bytes */
162 int audio_buf_index; /* in bytes */
163 AVPacket audio_pkt_temp;
165 enum SampleFormat audio_src_fmt;
166 AVAudioConvert *reformat_ctx;
168 int show_audio; /* if true, display audio samples */
169 int16_t sample_array[SAMPLE_ARRAY_SIZE];
170 int sample_array_index;
174 FFTSample *rdft_data;
177 SDL_Thread *subtitle_tid;
179 int subtitle_stream_changed;
180 AVStream *subtitle_st;
181 PacketQueue subtitleq;
182 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
183 int subpq_size, subpq_rindex, subpq_windex;
184 SDL_mutex *subpq_mutex;
185 SDL_cond *subpq_cond;
188 double frame_last_pts;
189 double frame_last_delay;
190 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
194 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
195 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
196 int64_t video_current_pos; ///<current displayed file pos
197 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
198 int pictq_size, pictq_rindex, pictq_windex;
199 SDL_mutex *pictq_mutex;
200 SDL_cond *pictq_cond;
202 struct SwsContext *img_convert_ctx;
205 // QETimer *video_timer;
207 int width, height, xleft, ytop;
211 int64_t last_dts_for_fault_detection;
212 int64_t last_pts_for_fault_detection;
215 AVFilterContext *out_video_filter; ///<the last filter in the video chain
219 float skip_frames_index;
223 static void show_help(void);
224 static int audio_write_get_buf_size(VideoState *is);
226 /* options specified by the user */
227 static AVInputFormat *file_iformat;
228 static const char *input_filename;
229 static const char *window_title;
230 static int fs_screen_width;
231 static int fs_screen_height;
232 static int screen_width = 0;
233 static int screen_height = 0;
234 static int frame_width = 0;
235 static int frame_height = 0;
236 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
237 static int audio_disable;
238 static int video_disable;
239 static int wanted_stream[AVMEDIA_TYPE_NB]={
240 [AVMEDIA_TYPE_AUDIO]=-1,
241 [AVMEDIA_TYPE_VIDEO]=-1,
242 [AVMEDIA_TYPE_SUBTITLE]=-1,
244 static int seek_by_bytes=-1;
245 static int display_disable;
246 static int show_status = 1;
247 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
248 static int64_t start_time = AV_NOPTS_VALUE;
249 static int64_t duration = AV_NOPTS_VALUE;
250 static int debug = 0;
251 static int debug_mv = 0;
253 static int thread_count = 1;
254 static int workaround_bugs = 1;
256 static int genpts = 0;
257 static int lowres = 0;
258 static int idct = FF_IDCT_AUTO;
259 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
260 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
261 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
262 static int error_recognition = FF_ER_CAREFUL;
263 static int error_concealment = 3;
264 static int decoder_reorder_pts= -1;
266 static int exit_on_keydown;
267 static int exit_on_mousedown;
269 static int framedrop=1;
271 static int rdftspeed=20;
273 static char *vfilters = NULL;
276 /* current context */
277 static int is_full_screen;
278 static VideoState *cur_stream;
279 static int64_t audio_callback_time;
281 static AVPacket flush_pkt;
283 #define FF_ALLOC_EVENT (SDL_USEREVENT)
284 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
285 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
287 static SDL_Surface *screen;
289 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
291 /* packet queue handling */
292 static void packet_queue_init(PacketQueue *q)
294 memset(q, 0, sizeof(PacketQueue));
295 q->mutex = SDL_CreateMutex();
296 q->cond = SDL_CreateCond();
297 packet_queue_put(q, &flush_pkt);
300 static void packet_queue_flush(PacketQueue *q)
302 AVPacketList *pkt, *pkt1;
304 SDL_LockMutex(q->mutex);
305 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
307 av_free_packet(&pkt->pkt);
314 SDL_UnlockMutex(q->mutex);
317 static void packet_queue_end(PacketQueue *q)
319 packet_queue_flush(q);
320 SDL_DestroyMutex(q->mutex);
321 SDL_DestroyCond(q->cond);
324 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
328 /* duplicate the packet */
329 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
332 pkt1 = av_malloc(sizeof(AVPacketList));
339 SDL_LockMutex(q->mutex);
345 q->last_pkt->next = pkt1;
348 q->size += pkt1->pkt.size + sizeof(*pkt1);
349 /* XXX: should duplicate packet data in DV case */
350 SDL_CondSignal(q->cond);
352 SDL_UnlockMutex(q->mutex);
356 static void packet_queue_abort(PacketQueue *q)
358 SDL_LockMutex(q->mutex);
360 q->abort_request = 1;
362 SDL_CondSignal(q->cond);
364 SDL_UnlockMutex(q->mutex);
367 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
368 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
373 SDL_LockMutex(q->mutex);
376 if (q->abort_request) {
383 q->first_pkt = pkt1->next;
387 q->size -= pkt1->pkt.size + sizeof(*pkt1);
396 SDL_CondWait(q->cond, q->mutex);
399 SDL_UnlockMutex(q->mutex);
403 static inline void fill_rectangle(SDL_Surface *screen,
404 int x, int y, int w, int h, int color)
411 SDL_FillRect(screen, &rect, color);
415 /* draw only the border of a rectangle */
416 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
420 /* fill the background */
424 w2 = s->width - (x + w);
430 h2 = s->height - (y + h);
433 fill_rectangle(screen,
437 fill_rectangle(screen,
438 s->xleft + s->width - w2, s->ytop,
441 fill_rectangle(screen,
442 s->xleft + w1, s->ytop,
443 s->width - w1 - w2, h1,
445 fill_rectangle(screen,
446 s->xleft + w1, s->ytop + s->height - h2,
447 s->width - w1 - w2, h2,
452 #define ALPHA_BLEND(a, oldp, newp, s)\
453 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
455 #define RGBA_IN(r, g, b, a, s)\
457 unsigned int v = ((const uint32_t *)(s))[0];\
458 a = (v >> 24) & 0xff;\
459 r = (v >> 16) & 0xff;\
460 g = (v >> 8) & 0xff;\
464 #define YUVA_IN(y, u, v, a, s, pal)\
466 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
467 a = (val >> 24) & 0xff;\
468 y = (val >> 16) & 0xff;\
469 u = (val >> 8) & 0xff;\
473 #define YUVA_OUT(d, y, u, v, a)\
475 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
481 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
483 int wrap, wrap3, width2, skip2;
484 int y, u, v, a, u1, v1, a1, w, h;
485 uint8_t *lum, *cb, *cr;
488 int dstx, dsty, dstw, dsth;
490 dstw = av_clip(rect->w, 0, imgw);
491 dsth = av_clip(rect->h, 0, imgh);
492 dstx = av_clip(rect->x, 0, imgw - dstw);
493 dsty = av_clip(rect->y, 0, imgh - dsth);
494 lum = dst->data[0] + dsty * dst->linesize[0];
495 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
496 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
498 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
500 wrap = dst->linesize[0];
501 wrap3 = rect->pict.linesize[0];
502 p = rect->pict.data[0];
503 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
511 YUVA_IN(y, u, v, a, p, pal);
512 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
513 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
514 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
520 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
521 YUVA_IN(y, u, v, a, p, pal);
525 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
527 YUVA_IN(y, u, v, a, p + BPP, pal);
531 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
532 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
533 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
540 YUVA_IN(y, u, v, a, p, pal);
541 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
542 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
543 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
547 p += wrap3 - dstw * BPP;
548 lum += wrap - dstw - dstx;
549 cb += dst->linesize[1] - width2 - skip2;
550 cr += dst->linesize[2] - width2 - skip2;
552 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
558 YUVA_IN(y, u, v, a, p, pal);
562 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
565 YUVA_IN(y, u, v, a, p, pal);
569 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
570 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
571 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
577 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
578 YUVA_IN(y, u, v, a, p, pal);
582 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
584 YUVA_IN(y, u, v, a, p + BPP, pal);
588 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
592 YUVA_IN(y, u, v, a, p, pal);
596 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
598 YUVA_IN(y, u, v, a, p + BPP, pal);
602 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
604 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
605 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
609 p += -wrap3 + 2 * BPP;
613 YUVA_IN(y, u, v, a, p, pal);
617 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
620 YUVA_IN(y, u, v, a, p, pal);
624 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
625 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
626 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
632 p += wrap3 + (wrap3 - dstw * BPP);
633 lum += wrap + (wrap - dstw - dstx);
634 cb += dst->linesize[1] - width2 - skip2;
635 cr += dst->linesize[2] - width2 - skip2;
637 /* handle odd height */
644 YUVA_IN(y, u, v, a, p, pal);
645 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
646 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
647 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
653 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
654 YUVA_IN(y, u, v, a, p, pal);
658 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
660 YUVA_IN(y, u, v, a, p + BPP, pal);
664 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
665 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
666 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
673 YUVA_IN(y, u, v, a, p, pal);
674 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
675 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
676 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
681 static void free_subpicture(SubPicture *sp)
683 avsubtitle_free(&sp->sub);
686 static void video_image_display(VideoState *is)
692 int width, height, x, y;
696 vp = &is->pictq[is->pictq_rindex];
699 if (vp->picref->video->pixel_aspect.num == 0)
702 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
705 /* XXX: use variable in the frame */
706 if (is->video_st->sample_aspect_ratio.num)
707 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
708 else if (is->video_st->codec->sample_aspect_ratio.num)
709 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
713 if (aspect_ratio <= 0.0)
715 aspect_ratio *= (float)vp->width / (float)vp->height;
716 /* if an active format is indicated, then it overrides the
719 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
720 is->dtg_active_format = is->video_st->codec->dtg_active_format;
721 printf("dtg_active_format=%d\n", is->dtg_active_format);
725 switch(is->video_st->codec->dtg_active_format) {
726 case FF_DTG_AFD_SAME:
731 aspect_ratio = 4.0 / 3.0;
733 case FF_DTG_AFD_16_9:
734 aspect_ratio = 16.0 / 9.0;
736 case FF_DTG_AFD_14_9:
737 aspect_ratio = 14.0 / 9.0;
739 case FF_DTG_AFD_4_3_SP_14_9:
740 aspect_ratio = 14.0 / 9.0;
742 case FF_DTG_AFD_16_9_SP_14_9:
743 aspect_ratio = 14.0 / 9.0;
745 case FF_DTG_AFD_SP_4_3:
746 aspect_ratio = 4.0 / 3.0;
753 if (is->subpq_size > 0)
755 sp = &is->subpq[is->subpq_rindex];
757 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
759 SDL_LockYUVOverlay (vp->bmp);
761 pict.data[0] = vp->bmp->pixels[0];
762 pict.data[1] = vp->bmp->pixels[2];
763 pict.data[2] = vp->bmp->pixels[1];
765 pict.linesize[0] = vp->bmp->pitches[0];
766 pict.linesize[1] = vp->bmp->pitches[2];
767 pict.linesize[2] = vp->bmp->pitches[1];
769 for (i = 0; i < sp->sub.num_rects; i++)
770 blend_subrect(&pict, sp->sub.rects[i],
771 vp->bmp->w, vp->bmp->h);
773 SDL_UnlockYUVOverlay (vp->bmp);
779 /* XXX: we suppose the screen has a 1.0 pixel ratio */
781 width = ((int)rint(height * aspect_ratio)) & ~1;
782 if (width > is->width) {
784 height = ((int)rint(width / aspect_ratio)) & ~1;
786 x = (is->width - width) / 2;
787 y = (is->height - height) / 2;
788 if (!is->no_background) {
789 /* fill the background */
790 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
792 is->no_background = 0;
794 rect.x = is->xleft + x;
795 rect.y = is->ytop + y;
798 SDL_DisplayYUVOverlay(vp->bmp, &rect);
801 fill_rectangle(screen,
802 is->xleft, is->ytop, is->width, is->height,
803 QERGB(0x00, 0x00, 0x00));
808 static inline int compute_mod(int a, int b)
817 static void video_audio_display(VideoState *s)
819 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
820 int ch, channels, h, h2, bgcolor, fgcolor;
822 int rdft_bits, nb_freq;
824 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
826 nb_freq= 1<<(rdft_bits-1);
828 /* compute display index : center on currently output samples */
829 channels = s->audio_st->codec->channels;
830 nb_display_channels = channels;
832 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
834 delay = audio_write_get_buf_size(s);
837 /* to be more precise, we take into account the time spent since
838 the last buffer computation */
839 if (audio_callback_time) {
840 time_diff = av_gettime() - audio_callback_time;
841 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
844 delay += 2*data_used;
845 if (delay < data_used)
848 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
849 if(s->show_audio==1){
851 for(i=0; i<1000; i+=channels){
852 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
853 int a= s->sample_array[idx];
854 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
855 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
856 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
858 if(h<score && (b^c)<0){
865 s->last_i_start = i_start;
867 i_start = s->last_i_start;
870 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
871 if(s->show_audio==1){
872 fill_rectangle(screen,
873 s->xleft, s->ytop, s->width, s->height,
876 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
878 /* total height for one channel */
879 h = s->height / nb_display_channels;
880 /* graph height / 2 */
882 for(ch = 0;ch < nb_display_channels; ch++) {
884 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
885 for(x = 0; x < s->width; x++) {
886 y = (s->sample_array[i] * h2) >> 15;
893 fill_rectangle(screen,
894 s->xleft + x, ys, 1, y,
897 if (i >= SAMPLE_ARRAY_SIZE)
898 i -= SAMPLE_ARRAY_SIZE;
902 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
904 for(ch = 1;ch < nb_display_channels; ch++) {
905 y = s->ytop + ch * h;
906 fill_rectangle(screen,
907 s->xleft, y, s->width, 1,
910 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
912 nb_display_channels= FFMIN(nb_display_channels, 2);
913 if(rdft_bits != s->rdft_bits){
914 av_rdft_end(s->rdft);
915 av_free(s->rdft_data);
916 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
917 s->rdft_bits= rdft_bits;
918 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
922 for(ch = 0;ch < nb_display_channels; ch++) {
923 data[ch] = s->rdft_data + 2*nb_freq*ch;
925 for(x = 0; x < 2*nb_freq; x++) {
926 double w= (x-nb_freq)*(1.0/nb_freq);
927 data[ch][x]= s->sample_array[i]*(1.0-w*w);
929 if (i >= SAMPLE_ARRAY_SIZE)
930 i -= SAMPLE_ARRAY_SIZE;
932 av_rdft_calc(s->rdft, data[ch]);
934 //least efficient way to do this, we should of course directly access it but its more than fast enough
935 for(y=0; y<s->height; y++){
936 double w= 1/sqrt(nb_freq);
937 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]));
938 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
939 + data[1][2*y+1]*data[1][2*y+1])) : a;
942 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
944 fill_rectangle(screen,
945 s->xpos, s->height-y, 1, 1,
949 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
951 if(s->xpos >= s->width)
956 static int video_open(VideoState *is){
957 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
960 if(is_full_screen) flags |= SDL_FULLSCREEN;
961 else flags |= SDL_RESIZABLE;
963 if (is_full_screen && fs_screen_width) {
965 h = fs_screen_height;
966 } else if(!is_full_screen && screen_width){
970 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
971 w = is->out_video_filter->inputs[0]->w;
972 h = is->out_video_filter->inputs[0]->h;
974 }else if (is->video_st && is->video_st->codec->width){
975 w = is->video_st->codec->width;
976 h = is->video_st->codec->height;
982 if(screen && is->width == screen->w && screen->w == w
983 && is->height== screen->h && screen->h == h)
987 screen = SDL_SetVideoMode(w, h, 0, flags);
989 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
990 screen = SDL_SetVideoMode(w, h, 24, flags);
993 fprintf(stderr, "SDL: could not set video mode - exiting\n");
997 window_title = input_filename;
998 SDL_WM_SetCaption(window_title, window_title);
1000 is->width = screen->w;
1001 is->height = screen->h;
1006 /* display the current picture, if any */
1007 static void video_display(VideoState *is)
1010 video_open(cur_stream);
1011 if (is->audio_st && is->show_audio)
1012 video_audio_display(is);
1013 else if (is->video_st)
1014 video_image_display(is);
1017 static int refresh_thread(void *opaque)
1019 VideoState *is= opaque;
1020 while(!is->abort_request){
1022 event.type = FF_REFRESH_EVENT;
1023 event.user.data1 = opaque;
1026 SDL_PushEvent(&event);
1028 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
1033 /* get the current audio clock value */
1034 static double get_audio_clock(VideoState *is)
1037 int hw_buf_size, bytes_per_sec;
1038 pts = is->audio_clock;
1039 hw_buf_size = audio_write_get_buf_size(is);
1042 bytes_per_sec = is->audio_st->codec->sample_rate *
1043 2 * is->audio_st->codec->channels;
1046 pts -= (double)hw_buf_size / bytes_per_sec;
1050 /* get the current video clock value */
1051 static double get_video_clock(VideoState *is)
1054 return is->video_current_pts;
1056 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1060 /* get the current external clock value */
1061 static double get_external_clock(VideoState *is)
1065 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1068 /* get the current master clock value */
1069 static double get_master_clock(VideoState *is)
1073 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1075 val = get_video_clock(is);
1077 val = get_audio_clock(is);
1078 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1080 val = get_audio_clock(is);
1082 val = get_video_clock(is);
1084 val = get_external_clock(is);
1089 /* seek in the stream */
1090 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1092 if (!is->seek_req) {
1095 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1097 is->seek_flags |= AVSEEK_FLAG_BYTE;
1102 /* pause or resume the video */
1103 static void stream_pause(VideoState *is)
1106 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1107 if(is->read_pause_return != AVERROR(ENOSYS)){
1108 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1110 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1112 is->paused = !is->paused;
1115 static double compute_target_time(double frame_current_pts, VideoState *is)
1117 double delay, sync_threshold, diff;
1119 /* compute nominal delay */
1120 delay = frame_current_pts - is->frame_last_pts;
1121 if (delay <= 0 || delay >= 10.0) {
1122 /* if incorrect delay, use previous one */
1123 delay = is->frame_last_delay;
1125 is->frame_last_delay = delay;
1127 is->frame_last_pts = frame_current_pts;
1129 /* update delay to follow master synchronisation source */
1130 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1131 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1132 /* if video is slave, we try to correct big delays by
1133 duplicating or deleting a frame */
1134 diff = get_video_clock(is) - get_master_clock(is);
1136 /* skip or repeat frame. We take into account the
1137 delay to compute the threshold. I still don't know
1138 if it is the best guess */
1139 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1140 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1141 if (diff <= -sync_threshold)
1143 else if (diff >= sync_threshold)
1147 is->frame_timer += delay;
1148 #if defined(DEBUG_SYNC)
1149 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1150 delay, actual_delay, frame_current_pts, -diff);
1153 return is->frame_timer;
1156 /* called to display each frame */
1157 static void video_refresh_timer(void *opaque)
1159 VideoState *is = opaque;
1162 SubPicture *sp, *sp2;
1166 if (is->pictq_size == 0) {
1167 //nothing to do, no picture to display in the que
1169 double time= av_gettime()/1000000.0;
1171 /* dequeue the picture */
1172 vp = &is->pictq[is->pictq_rindex];
1174 if(time < vp->target_clock)
1176 /* update current video pts */
1177 is->video_current_pts = vp->pts;
1178 is->video_current_pts_drift = is->video_current_pts - time;
1179 is->video_current_pos = vp->pos;
1180 if(is->pictq_size > 1){
1181 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1182 assert(nextvp->target_clock >= vp->target_clock);
1183 next_target= nextvp->target_clock;
1185 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1187 if(framedrop && time > next_target){
1188 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1189 if(is->pictq_size > 1 || time > next_target + 0.5){
1190 /* update queue size and signal for next picture */
1191 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1192 is->pictq_rindex = 0;
1194 SDL_LockMutex(is->pictq_mutex);
1196 SDL_CondSignal(is->pictq_cond);
1197 SDL_UnlockMutex(is->pictq_mutex);
1202 if(is->subtitle_st) {
1203 if (is->subtitle_stream_changed) {
1204 SDL_LockMutex(is->subpq_mutex);
1206 while (is->subpq_size) {
1207 free_subpicture(&is->subpq[is->subpq_rindex]);
1209 /* update queue size and signal for next picture */
1210 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1211 is->subpq_rindex = 0;
1215 is->subtitle_stream_changed = 0;
1217 SDL_CondSignal(is->subpq_cond);
1218 SDL_UnlockMutex(is->subpq_mutex);
1220 if (is->subpq_size > 0) {
1221 sp = &is->subpq[is->subpq_rindex];
1223 if (is->subpq_size > 1)
1224 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1228 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1229 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1231 free_subpicture(sp);
1233 /* update queue size and signal for next picture */
1234 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1235 is->subpq_rindex = 0;
1237 SDL_LockMutex(is->subpq_mutex);
1239 SDL_CondSignal(is->subpq_cond);
1240 SDL_UnlockMutex(is->subpq_mutex);
1246 /* display picture */
1249 /* update queue size and signal for next picture */
1250 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1251 is->pictq_rindex = 0;
1253 SDL_LockMutex(is->pictq_mutex);
1255 SDL_CondSignal(is->pictq_cond);
1256 SDL_UnlockMutex(is->pictq_mutex);
1258 } else if (is->audio_st) {
1259 /* draw the next audio frame */
1261 /* if only audio stream, then display the audio bars (better
1262 than nothing, just to test the implementation */
1264 /* display picture */
1268 static int64_t last_time;
1270 int aqsize, vqsize, sqsize;
1273 cur_time = av_gettime();
1274 if (!last_time || (cur_time - last_time) >= 30000) {
1279 aqsize = is->audioq.size;
1281 vqsize = is->videoq.size;
1282 if (is->subtitle_st)
1283 sqsize = is->subtitleq.size;
1285 if (is->audio_st && is->video_st)
1286 av_diff = get_audio_clock(is) - get_video_clock(is);
1287 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1288 get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
1290 last_time = cur_time;
1295 static void stream_close(VideoState *is)
1299 /* XXX: use a special url_shutdown call to abort parse cleanly */
1300 is->abort_request = 1;
1301 SDL_WaitThread(is->parse_tid, NULL);
1302 SDL_WaitThread(is->refresh_tid, NULL);
1304 /* free all pictures */
1305 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1309 avfilter_unref_buffer(vp->picref);
1314 SDL_FreeYUVOverlay(vp->bmp);
1318 SDL_DestroyMutex(is->pictq_mutex);
1319 SDL_DestroyCond(is->pictq_cond);
1320 SDL_DestroyMutex(is->subpq_mutex);
1321 SDL_DestroyCond(is->subpq_cond);
1322 #if !CONFIG_AVFILTER
1323 if (is->img_convert_ctx)
1324 sws_freeContext(is->img_convert_ctx);
1329 static void do_exit(void)
1333 stream_close(cur_stream);
1336 for (i = 0; i < AVMEDIA_TYPE_NB; i++)
1337 av_free(avcodec_opts[i]);
1338 av_free(avformat_opts);
1349 /* allocate a picture (needs to do that in main thread to avoid
1350 potential locking problems */
1351 static void alloc_picture(void *opaque)
1353 VideoState *is = opaque;
1356 vp = &is->pictq[is->pictq_windex];
1359 SDL_FreeYUVOverlay(vp->bmp);
1363 avfilter_unref_buffer(vp->picref);
1366 vp->width = is->out_video_filter->inputs[0]->w;
1367 vp->height = is->out_video_filter->inputs[0]->h;
1368 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1370 vp->width = is->video_st->codec->width;
1371 vp->height = is->video_st->codec->height;
1372 vp->pix_fmt = is->video_st->codec->pix_fmt;
1375 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1378 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1379 /* SDL allocates a buffer smaller than requested if the video
1380 * overlay hardware is unable to support the requested size. */
1381 fprintf(stderr, "Error: the video system does not support an image\n"
1382 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1383 "to reduce the image size.\n", vp->width, vp->height );
1387 SDL_LockMutex(is->pictq_mutex);
1389 SDL_CondSignal(is->pictq_cond);
1390 SDL_UnlockMutex(is->pictq_mutex);
1395 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1397 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1404 /* wait until we have space to put a new picture */
1405 SDL_LockMutex(is->pictq_mutex);
1407 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1408 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1410 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1411 !is->videoq.abort_request) {
1412 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1414 SDL_UnlockMutex(is->pictq_mutex);
1416 if (is->videoq.abort_request)
1419 vp = &is->pictq[is->pictq_windex];
1421 /* alloc or resize hardware picture buffer */
1424 vp->width != is->out_video_filter->inputs[0]->w ||
1425 vp->height != is->out_video_filter->inputs[0]->h) {
1427 vp->width != is->video_st->codec->width ||
1428 vp->height != is->video_st->codec->height) {
1434 /* the allocation must be done in the main thread to avoid
1436 event.type = FF_ALLOC_EVENT;
1437 event.user.data1 = is;
1438 SDL_PushEvent(&event);
1440 /* wait until the picture is allocated */
1441 SDL_LockMutex(is->pictq_mutex);
1442 while (!vp->allocated && !is->videoq.abort_request) {
1443 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1445 SDL_UnlockMutex(is->pictq_mutex);
1447 if (is->videoq.abort_request)
1451 /* if the frame is not skipped, then display it */
1456 avfilter_unref_buffer(vp->picref);
1457 vp->picref = src_frame->opaque;
1460 /* get a pointer on the bitmap */
1461 SDL_LockYUVOverlay (vp->bmp);
1463 dst_pix_fmt = PIX_FMT_YUV420P;
1464 memset(&pict,0,sizeof(AVPicture));
1465 pict.data[0] = vp->bmp->pixels[0];
1466 pict.data[1] = vp->bmp->pixels[2];
1467 pict.data[2] = vp->bmp->pixels[1];
1469 pict.linesize[0] = vp->bmp->pitches[0];
1470 pict.linesize[1] = vp->bmp->pitches[2];
1471 pict.linesize[2] = vp->bmp->pitches[1];
1474 pict_src.data[0] = src_frame->data[0];
1475 pict_src.data[1] = src_frame->data[1];
1476 pict_src.data[2] = src_frame->data[2];
1478 pict_src.linesize[0] = src_frame->linesize[0];
1479 pict_src.linesize[1] = src_frame->linesize[1];
1480 pict_src.linesize[2] = src_frame->linesize[2];
1482 //FIXME use direct rendering
1483 av_picture_copy(&pict, &pict_src,
1484 vp->pix_fmt, vp->width, vp->height);
1486 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1487 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1488 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1489 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1490 if (is->img_convert_ctx == NULL) {
1491 fprintf(stderr, "Cannot initialize the conversion context\n");
1494 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1495 0, vp->height, pict.data, pict.linesize);
1497 /* update the bitmap content */
1498 SDL_UnlockYUVOverlay(vp->bmp);
1503 /* now we can update the picture count */
1504 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1505 is->pictq_windex = 0;
1506 SDL_LockMutex(is->pictq_mutex);
1507 vp->target_clock= compute_target_time(vp->pts, is);
1510 SDL_UnlockMutex(is->pictq_mutex);
1516 * compute the exact PTS for the picture if it is omitted in the stream
1517 * @param pts1 the dts of the pkt / pts of the frame
1519 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1521 double frame_delay, pts;
1526 /* update video clock with pts, if present */
1527 is->video_clock = pts;
1529 pts = is->video_clock;
1531 /* update video clock for next frame */
1532 frame_delay = av_q2d(is->video_st->codec->time_base);
1533 /* for MPEG2, the frame can be repeated, so we update the
1534 clock accordingly */
1535 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1536 is->video_clock += frame_delay;
1538 #if defined(DEBUG_SYNC) && 0
1539 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1540 av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1542 return queue_picture(is, src_frame, pts, pos);
1545 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1547 int len1, got_picture, i;
1549 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1552 if(pkt->data == flush_pkt.data){
1553 avcodec_flush_buffers(is->video_st->codec);
1555 SDL_LockMutex(is->pictq_mutex);
1556 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1557 for(i=0; i<VIDEO_PICTURE_QUEUE_SIZE; i++){
1558 is->pictq[i].target_clock= 0;
1560 while (is->pictq_size && !is->videoq.abort_request) {
1561 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1563 is->video_current_pos= -1;
1564 SDL_UnlockMutex(is->pictq_mutex);
1566 is->last_dts_for_fault_detection=
1567 is->last_pts_for_fault_detection= INT64_MIN;
1568 is->frame_last_pts= AV_NOPTS_VALUE;
1569 is->frame_last_delay = 0;
1570 is->frame_timer = (double)av_gettime() / 1000000.0;
1572 is->skip_frames_index= 0;
1576 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1577 this packet, if any */
1578 is->video_st->codec->reordered_opaque= pkt->pts;
1579 len1 = avcodec_decode_video2(is->video_st->codec,
1580 frame, &got_picture,
1584 if(pkt->dts != AV_NOPTS_VALUE){
1585 is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
1586 is->last_dts_for_fault_detection= pkt->dts;
1588 if(frame->reordered_opaque != AV_NOPTS_VALUE){
1589 is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
1590 is->last_pts_for_fault_detection= frame->reordered_opaque;
1594 if( ( decoder_reorder_pts==1
1595 || (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
1596 || pkt->dts == AV_NOPTS_VALUE)
1597 && frame->reordered_opaque != AV_NOPTS_VALUE)
1598 *pts= frame->reordered_opaque;
1599 else if(pkt->dts != AV_NOPTS_VALUE)
1607 is->skip_frames_index += 1;
1608 if(is->skip_frames_index >= is->skip_frames){
1609 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1624 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1626 AVFilterContext *ctx = codec->opaque;
1627 AVFilterBufferRef *ref;
1628 int perms = AV_PERM_WRITE;
1629 int i, w, h, stride[4];
1632 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1633 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1634 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1635 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1637 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1641 avcodec_align_dimensions2(codec, &w, &h, stride);
1642 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1646 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1649 ref->video->w = codec->width;
1650 ref->video->h = codec->height;
1651 for(i = 0; i < 4; i ++) {
1652 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1653 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1656 ref->data[i] += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1658 pic->data[i] = ref->data[i];
1659 pic->linesize[i] = ref->linesize[i];
1663 pic->type = FF_BUFFER_TYPE_USER;
1664 pic->reordered_opaque = codec->reordered_opaque;
1668 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1670 memset(pic->data, 0, sizeof(pic->data));
1671 avfilter_unref_buffer(pic->opaque);
1674 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1676 AVFilterBufferRef *ref = pic->opaque;
1678 if (pic->data[0] == NULL) {
1679 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1680 return codec->get_buffer(codec, pic);
1683 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1684 (codec->pix_fmt != ref->format)) {
1685 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1689 pic->reordered_opaque = codec->reordered_opaque;
1693 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1695 FilterPriv *priv = ctx->priv;
1696 AVCodecContext *codec;
1697 if(!opaque) return -1;
1700 codec = priv->is->video_st->codec;
1701 codec->opaque = ctx;
1702 if(codec->codec->capabilities & CODEC_CAP_DR1) {
1704 codec->get_buffer = input_get_buffer;
1705 codec->release_buffer = input_release_buffer;
1706 codec->reget_buffer = input_reget_buffer;
1709 priv->frame = avcodec_alloc_frame();
1714 static void input_uninit(AVFilterContext *ctx)
1716 FilterPriv *priv = ctx->priv;
1717 av_free(priv->frame);
1720 static int input_request_frame(AVFilterLink *link)
1722 FilterPriv *priv = link->src->priv;
1723 AVFilterBufferRef *picref;
1728 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1729 av_free_packet(&pkt);
1734 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1736 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1737 av_picture_data_copy(picref->data, picref->linesize,
1738 priv->frame->data, priv->frame->linesize,
1739 picref->format, link->w, link->h);
1741 av_free_packet(&pkt);
1744 picref->pos = pkt.pos;
1745 picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1746 avfilter_start_frame(link, picref);
1747 avfilter_draw_slice(link, 0, link->h, 1);
1748 avfilter_end_frame(link);
1753 static int input_query_formats(AVFilterContext *ctx)
1755 FilterPriv *priv = ctx->priv;
1756 enum PixelFormat pix_fmts[] = {
1757 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1760 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1764 static int input_config_props(AVFilterLink *link)
1766 FilterPriv *priv = link->src->priv;
1767 AVCodecContext *c = priv->is->video_st->codec;
1770 link->h = c->height;
1775 static AVFilter input_filter =
1777 .name = "ffplay_input",
1779 .priv_size = sizeof(FilterPriv),
1782 .uninit = input_uninit,
1784 .query_formats = input_query_formats,
1786 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1787 .outputs = (AVFilterPad[]) {{ .name = "default",
1788 .type = AVMEDIA_TYPE_VIDEO,
1789 .request_frame = input_request_frame,
1790 .config_props = input_config_props, },
1794 static void output_end_frame(AVFilterLink *link)
1798 static int output_query_formats(AVFilterContext *ctx)
1800 enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1802 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1806 static int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
1807 int64_t *pts, int64_t *pos)
1809 AVFilterBufferRef *pic;
1811 if(avfilter_request_frame(ctx->inputs[0]))
1813 if(!(pic = ctx->inputs[0]->cur_buf))
1815 ctx->inputs[0]->cur_buf = NULL;
1817 frame->opaque = pic;
1821 memcpy(frame->data, pic->data, sizeof(frame->data));
1822 memcpy(frame->linesize, pic->linesize, sizeof(frame->linesize));
1827 static AVFilter output_filter =
1829 .name = "ffplay_output",
1831 .query_formats = output_query_formats,
1833 .inputs = (AVFilterPad[]) {{ .name = "default",
1834 .type = AVMEDIA_TYPE_VIDEO,
1835 .end_frame = output_end_frame,
1836 .min_perms = AV_PERM_READ, },
1838 .outputs = (AVFilterPad[]) {{ .name = NULL }},
1840 #endif /* CONFIG_AVFILTER */
1842 static int video_thread(void *arg)
1844 VideoState *is = arg;
1845 AVFrame *frame= avcodec_alloc_frame();
1852 char sws_flags_str[128];
1853 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1854 AVFilterGraph *graph = av_mallocz(sizeof(AVFilterGraph));
1855 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1856 graph->scale_sws_opts = av_strdup(sws_flags_str);
1858 if (avfilter_open(&filt_src, &input_filter, "src") < 0) goto the_end;
1859 if (avfilter_open(&filt_out, &output_filter, "out") < 0) goto the_end;
1861 if(avfilter_init_filter(filt_src, NULL, is)) goto the_end;
1862 if(avfilter_init_filter(filt_out, NULL, frame)) goto the_end;
1866 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1867 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1869 outputs->name = av_strdup("in");
1870 outputs->filter = filt_src;
1871 outputs->pad_idx = 0;
1872 outputs->next = NULL;
1874 inputs->name = av_strdup("out");
1875 inputs->filter = filt_out;
1876 inputs->pad_idx = 0;
1877 inputs->next = NULL;
1879 if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
1881 av_freep(&vfilters);
1883 if(avfilter_link(filt_src, 0, filt_out, 0) < 0) goto the_end;
1885 avfilter_graph_add_filter(graph, filt_src);
1886 avfilter_graph_add_filter(graph, filt_out);
1888 if(avfilter_graph_check_validity(graph, NULL)) goto the_end;
1889 if(avfilter_graph_config_formats(graph, NULL)) goto the_end;
1890 if(avfilter_graph_config_links(graph, NULL)) goto the_end;
1892 is->out_video_filter = filt_out;
1896 #if !CONFIG_AVFILTER
1899 while (is->paused && !is->videoq.abort_request)
1902 ret = get_filtered_video_frame(filt_out, frame, &pts_int, &pos);
1904 ret = get_video_frame(is, frame, &pts_int, &pkt);
1907 if (ret < 0) goto the_end;
1912 pts = pts_int*av_q2d(is->video_st->time_base);
1915 ret = output_picture2(is, frame, pts, pos);
1917 ret = output_picture2(is, frame, pts, pkt.pos);
1918 av_free_packet(&pkt);
1925 stream_pause(cur_stream);
1929 avfilter_graph_destroy(graph);
1936 static int subtitle_thread(void *arg)
1938 VideoState *is = arg;
1940 AVPacket pkt1, *pkt = &pkt1;
1941 int len1, got_subtitle;
1944 int r, g, b, y, u, v, a;
1947 while (is->paused && !is->subtitleq.abort_request) {
1950 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1953 if(pkt->data == flush_pkt.data){
1954 avcodec_flush_buffers(is->subtitle_st->codec);
1957 SDL_LockMutex(is->subpq_mutex);
1958 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1959 !is->subtitleq.abort_request) {
1960 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1962 SDL_UnlockMutex(is->subpq_mutex);
1964 if (is->subtitleq.abort_request)
1967 sp = &is->subpq[is->subpq_windex];
1969 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1970 this packet, if any */
1972 if (pkt->pts != AV_NOPTS_VALUE)
1973 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1975 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1976 &sp->sub, &got_subtitle,
1980 if (got_subtitle && sp->sub.format == 0) {
1983 for (i = 0; i < sp->sub.num_rects; i++)
1985 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1987 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1988 y = RGB_TO_Y_CCIR(r, g, b);
1989 u = RGB_TO_U_CCIR(r, g, b, 0);
1990 v = RGB_TO_V_CCIR(r, g, b, 0);
1991 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1995 /* now we can update the picture count */
1996 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1997 is->subpq_windex = 0;
1998 SDL_LockMutex(is->subpq_mutex);
2000 SDL_UnlockMutex(is->subpq_mutex);
2002 av_free_packet(pkt);
2005 // stream_pause(cur_stream);
2011 /* copy samples for viewing in editor window */
2012 static void update_sample_display(VideoState *is, short *samples, int samples_size)
2014 int size, len, channels;
2016 channels = is->audio_st->codec->channels;
2018 size = samples_size / sizeof(short);
2020 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
2023 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
2025 is->sample_array_index += len;
2026 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
2027 is->sample_array_index = 0;
2032 /* return the new audio buffer size (samples can be added or deleted
2033 to get better sync if video or external master clock) */
2034 static int synchronize_audio(VideoState *is, short *samples,
2035 int samples_size1, double pts)
2037 int n, samples_size;
2040 n = 2 * is->audio_st->codec->channels;
2041 samples_size = samples_size1;
2043 /* if not master, then we try to remove or add samples to correct the clock */
2044 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2045 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2046 double diff, avg_diff;
2047 int wanted_size, min_size, max_size, nb_samples;
2049 ref_clock = get_master_clock(is);
2050 diff = get_audio_clock(is) - ref_clock;
2052 if (diff < AV_NOSYNC_THRESHOLD) {
2053 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2054 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2055 /* not enough measures to have a correct estimate */
2056 is->audio_diff_avg_count++;
2058 /* estimate the A-V difference */
2059 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2061 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2062 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2063 nb_samples = samples_size / n;
2065 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2066 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2067 if (wanted_size < min_size)
2068 wanted_size = min_size;
2069 else if (wanted_size > max_size)
2070 wanted_size = max_size;
2072 /* add or remove samples to correction the synchro */
2073 if (wanted_size < samples_size) {
2074 /* remove samples */
2075 samples_size = wanted_size;
2076 } else if (wanted_size > samples_size) {
2077 uint8_t *samples_end, *q;
2081 nb = (samples_size - wanted_size);
2082 samples_end = (uint8_t *)samples + samples_size - n;
2083 q = samples_end + n;
2085 memcpy(q, samples_end, n);
2089 samples_size = wanted_size;
2093 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2094 diff, avg_diff, samples_size - samples_size1,
2095 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2099 /* too big difference : may be initial PTS errors, so
2101 is->audio_diff_avg_count = 0;
2102 is->audio_diff_cum = 0;
2106 return samples_size;
2109 /* decode one audio frame and returns its uncompressed size */
2110 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2112 AVPacket *pkt_temp = &is->audio_pkt_temp;
2113 AVPacket *pkt = &is->audio_pkt;
2114 AVCodecContext *dec= is->audio_st->codec;
2115 int n, len1, data_size;
2119 /* NOTE: the audio packet can contain several frames */
2120 while (pkt_temp->size > 0) {
2121 data_size = sizeof(is->audio_buf1);
2122 len1 = avcodec_decode_audio3(dec,
2123 (int16_t *)is->audio_buf1, &data_size,
2126 /* if error, we skip the frame */
2131 pkt_temp->data += len1;
2132 pkt_temp->size -= len1;
2136 if (dec->sample_fmt != is->audio_src_fmt) {
2137 if (is->reformat_ctx)
2138 av_audio_convert_free(is->reformat_ctx);
2139 is->reformat_ctx= av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
2140 dec->sample_fmt, 1, NULL, 0);
2141 if (!is->reformat_ctx) {
2142 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2143 avcodec_get_sample_fmt_name(dec->sample_fmt),
2144 avcodec_get_sample_fmt_name(SAMPLE_FMT_S16));
2147 is->audio_src_fmt= dec->sample_fmt;
2150 if (is->reformat_ctx) {
2151 const void *ibuf[6]= {is->audio_buf1};
2152 void *obuf[6]= {is->audio_buf2};
2153 int istride[6]= {av_get_bits_per_sample_format(dec->sample_fmt)/8};
2154 int ostride[6]= {2};
2155 int len= data_size/istride[0];
2156 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2157 printf("av_audio_convert() failed\n");
2160 is->audio_buf= is->audio_buf2;
2161 /* FIXME: existing code assume that data_size equals framesize*channels*2
2162 remove this legacy cruft */
2165 is->audio_buf= is->audio_buf1;
2168 /* if no pts, then compute it */
2169 pts = is->audio_clock;
2171 n = 2 * dec->channels;
2172 is->audio_clock += (double)data_size /
2173 (double)(n * dec->sample_rate);
2174 #if defined(DEBUG_SYNC)
2176 static double last_clock;
2177 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2178 is->audio_clock - last_clock,
2179 is->audio_clock, pts);
2180 last_clock = is->audio_clock;
2186 /* free the current packet */
2188 av_free_packet(pkt);
2190 if (is->paused || is->audioq.abort_request) {
2194 /* read next packet */
2195 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2197 if(pkt->data == flush_pkt.data){
2198 avcodec_flush_buffers(dec);
2202 pkt_temp->data = pkt->data;
2203 pkt_temp->size = pkt->size;
2205 /* if update the audio clock with the pts */
2206 if (pkt->pts != AV_NOPTS_VALUE) {
2207 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2212 /* get the current audio output buffer size, in samples. With SDL, we
2213 cannot have a precise information */
2214 static int audio_write_get_buf_size(VideoState *is)
2216 return is->audio_buf_size - is->audio_buf_index;
2220 /* prepare a new audio buffer */
2221 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2223 VideoState *is = opaque;
2224 int audio_size, len1;
2227 audio_callback_time = av_gettime();
2230 if (is->audio_buf_index >= is->audio_buf_size) {
2231 audio_size = audio_decode_frame(is, &pts);
2232 if (audio_size < 0) {
2233 /* if error, just output silence */
2234 is->audio_buf = is->audio_buf1;
2235 is->audio_buf_size = 1024;
2236 memset(is->audio_buf, 0, is->audio_buf_size);
2239 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2240 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2242 is->audio_buf_size = audio_size;
2244 is->audio_buf_index = 0;
2246 len1 = is->audio_buf_size - is->audio_buf_index;
2249 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2252 is->audio_buf_index += len1;
2256 /* open a given stream. Return 0 if OK */
2257 static int stream_component_open(VideoState *is, int stream_index)
2259 AVFormatContext *ic = is->ic;
2260 AVCodecContext *avctx;
2262 SDL_AudioSpec wanted_spec, spec;
2264 if (stream_index < 0 || stream_index >= ic->nb_streams)
2266 avctx = ic->streams[stream_index]->codec;
2268 /* prepare audio output */
2269 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2270 if (avctx->channels > 0) {
2271 avctx->request_channels = FFMIN(2, avctx->channels);
2273 avctx->request_channels = 2;
2277 codec = avcodec_find_decoder(avctx->codec_id);
2278 avctx->debug_mv = debug_mv;
2279 avctx->debug = debug;
2280 avctx->workaround_bugs = workaround_bugs;
2281 avctx->lowres = lowres;
2282 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2283 avctx->idct_algo= idct;
2284 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2285 avctx->skip_frame= skip_frame;
2286 avctx->skip_idct= skip_idct;
2287 avctx->skip_loop_filter= skip_loop_filter;
2288 avctx->error_recognition= error_recognition;
2289 avctx->error_concealment= error_concealment;
2290 avcodec_thread_init(avctx, thread_count);
2292 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0);
2295 avcodec_open(avctx, codec) < 0)
2298 /* prepare audio output */
2299 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2300 wanted_spec.freq = avctx->sample_rate;
2301 wanted_spec.format = AUDIO_S16SYS;
2302 wanted_spec.channels = avctx->channels;
2303 wanted_spec.silence = 0;
2304 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2305 wanted_spec.callback = sdl_audio_callback;
2306 wanted_spec.userdata = is;
2307 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2308 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2311 is->audio_hw_buf_size = spec.size;
2312 is->audio_src_fmt= SAMPLE_FMT_S16;
2315 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2316 switch(avctx->codec_type) {
2317 case AVMEDIA_TYPE_AUDIO:
2318 is->audio_stream = stream_index;
2319 is->audio_st = ic->streams[stream_index];
2320 is->audio_buf_size = 0;
2321 is->audio_buf_index = 0;
2323 /* init averaging filter */
2324 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2325 is->audio_diff_avg_count = 0;
2326 /* since we do not have a precise anough audio fifo fullness,
2327 we correct audio sync only if larger than this threshold */
2328 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2330 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2331 packet_queue_init(&is->audioq);
2334 case AVMEDIA_TYPE_VIDEO:
2335 is->video_stream = stream_index;
2336 is->video_st = ic->streams[stream_index];
2338 // is->video_current_pts_time = av_gettime();
2340 packet_queue_init(&is->videoq);
2341 is->video_tid = SDL_CreateThread(video_thread, is);
2343 case AVMEDIA_TYPE_SUBTITLE:
2344 is->subtitle_stream = stream_index;
2345 is->subtitle_st = ic->streams[stream_index];
2346 packet_queue_init(&is->subtitleq);
2348 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2356 static void stream_component_close(VideoState *is, int stream_index)
2358 AVFormatContext *ic = is->ic;
2359 AVCodecContext *avctx;
2361 if (stream_index < 0 || stream_index >= ic->nb_streams)
2363 avctx = ic->streams[stream_index]->codec;
2365 switch(avctx->codec_type) {
2366 case AVMEDIA_TYPE_AUDIO:
2367 packet_queue_abort(&is->audioq);
2371 packet_queue_end(&is->audioq);
2372 if (is->reformat_ctx)
2373 av_audio_convert_free(is->reformat_ctx);
2374 is->reformat_ctx = NULL;
2376 case AVMEDIA_TYPE_VIDEO:
2377 packet_queue_abort(&is->videoq);
2379 /* note: we also signal this mutex to make sure we deblock the
2380 video thread in all cases */
2381 SDL_LockMutex(is->pictq_mutex);
2382 SDL_CondSignal(is->pictq_cond);
2383 SDL_UnlockMutex(is->pictq_mutex);
2385 SDL_WaitThread(is->video_tid, NULL);
2387 packet_queue_end(&is->videoq);
2389 case AVMEDIA_TYPE_SUBTITLE:
2390 packet_queue_abort(&is->subtitleq);
2392 /* note: we also signal this mutex to make sure we deblock the
2393 video thread in all cases */
2394 SDL_LockMutex(is->subpq_mutex);
2395 is->subtitle_stream_changed = 1;
2397 SDL_CondSignal(is->subpq_cond);
2398 SDL_UnlockMutex(is->subpq_mutex);
2400 SDL_WaitThread(is->subtitle_tid, NULL);
2402 packet_queue_end(&is->subtitleq);
2408 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2409 avcodec_close(avctx);
2410 switch(avctx->codec_type) {
2411 case AVMEDIA_TYPE_AUDIO:
2412 is->audio_st = NULL;
2413 is->audio_stream = -1;
2415 case AVMEDIA_TYPE_VIDEO:
2416 is->video_st = NULL;
2417 is->video_stream = -1;
2419 case AVMEDIA_TYPE_SUBTITLE:
2420 is->subtitle_st = NULL;
2421 is->subtitle_stream = -1;
2428 /* since we have only one decoding thread, we can use a global
2429 variable instead of a thread local variable */
2430 static VideoState *global_video_state;
2432 static int decode_interrupt_cb(void)
2434 return (global_video_state && global_video_state->abort_request);
2437 /* this thread gets the stream from the disk or the network */
2438 static int decode_thread(void *arg)
2440 VideoState *is = arg;
2441 AVFormatContext *ic;
2443 int st_index[AVMEDIA_TYPE_NB];
2444 int st_count[AVMEDIA_TYPE_NB]={0};
2445 int st_best_packet_count[AVMEDIA_TYPE_NB];
2446 AVPacket pkt1, *pkt = &pkt1;
2447 AVFormatParameters params, *ap = ¶ms;
2449 int pkt_in_play_range = 0;
2451 ic = avformat_alloc_context();
2453 memset(st_index, -1, sizeof(st_index));
2454 memset(st_best_packet_count, -1, sizeof(st_best_packet_count));
2455 is->video_stream = -1;
2456 is->audio_stream = -1;
2457 is->subtitle_stream = -1;
2459 global_video_state = is;
2460 url_set_interrupt_cb(decode_interrupt_cb);
2462 memset(ap, 0, sizeof(*ap));
2464 ap->prealloced_context = 1;
2465 ap->width = frame_width;
2466 ap->height= frame_height;
2467 ap->time_base= (AVRational){1, 25};
2468 ap->pix_fmt = frame_pix_fmt;
2470 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2472 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2474 print_error(is->filename, err);
2481 ic->flags |= AVFMT_FLAG_GENPTS;
2483 err = av_find_stream_info(ic);
2485 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2490 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2493 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2495 /* if seeking requested, we execute it */
2496 if (start_time != AV_NOPTS_VALUE) {
2499 timestamp = start_time;
2500 /* add the stream start time */
2501 if (ic->start_time != AV_NOPTS_VALUE)
2502 timestamp += ic->start_time;
2503 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2505 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2506 is->filename, (double)timestamp / AV_TIME_BASE);
2510 for(i = 0; i < ic->nb_streams; i++) {
2511 AVStream *st= ic->streams[i];
2512 AVCodecContext *avctx = st->codec;
2513 ic->streams[i]->discard = AVDISCARD_ALL;
2514 if(avctx->codec_type >= (unsigned)AVMEDIA_TYPE_NB)
2516 if(st_count[avctx->codec_type]++ != wanted_stream[avctx->codec_type] && wanted_stream[avctx->codec_type] >= 0)
2519 if(st_best_packet_count[avctx->codec_type] >= st->codec_info_nb_frames)
2521 st_best_packet_count[avctx->codec_type]= st->codec_info_nb_frames;
2523 switch(avctx->codec_type) {
2524 case AVMEDIA_TYPE_AUDIO:
2526 st_index[AVMEDIA_TYPE_AUDIO] = i;
2528 case AVMEDIA_TYPE_VIDEO:
2529 case AVMEDIA_TYPE_SUBTITLE:
2531 st_index[avctx->codec_type] = i;
2538 dump_format(ic, 0, is->filename, 0);
2541 /* open the streams */
2542 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2543 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2547 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2548 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2550 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2552 if (!display_disable)
2556 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2557 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2560 if (is->video_stream < 0 && is->audio_stream < 0) {
2561 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2567 if (is->abort_request)
2569 if (is->paused != is->last_paused) {
2570 is->last_paused = is->paused;
2572 is->read_pause_return= av_read_pause(ic);
2576 #if CONFIG_RTSP_DEMUXER
2577 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2578 /* wait 10 ms to avoid trying to get another packet */
2585 int64_t seek_target= is->seek_pos;
2586 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2587 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2588 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2589 // of the seek_pos/seek_rel variables
2591 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2593 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2595 if (is->audio_stream >= 0) {
2596 packet_queue_flush(&is->audioq);
2597 packet_queue_put(&is->audioq, &flush_pkt);
2599 if (is->subtitle_stream >= 0) {
2600 packet_queue_flush(&is->subtitleq);
2601 packet_queue_put(&is->subtitleq, &flush_pkt);
2603 if (is->video_stream >= 0) {
2604 packet_queue_flush(&is->videoq);
2605 packet_queue_put(&is->videoq, &flush_pkt);
2612 /* if the queue are full, no need to read more */
2613 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2614 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2615 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2616 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2621 if(url_feof(ic->pb) || eof) {
2622 if(is->video_stream >= 0){
2623 av_init_packet(pkt);
2626 pkt->stream_index= is->video_stream;
2627 packet_queue_put(&is->videoq, pkt);
2630 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2631 if(loop!=1 && (!loop || --loop)){
2632 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2640 ret = av_read_frame(ic, pkt);
2642 if (ret == AVERROR_EOF)
2644 if (url_ferror(ic->pb))
2646 SDL_Delay(100); /* wait for user event */
2649 /* check if packet is in play range specified by user, then queue, otherwise discard */
2650 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2651 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2652 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2653 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2654 <= ((double)duration/1000000);
2655 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2656 packet_queue_put(&is->audioq, pkt);
2657 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2658 packet_queue_put(&is->videoq, pkt);
2659 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2660 packet_queue_put(&is->subtitleq, pkt);
2662 av_free_packet(pkt);
2665 /* wait until the end */
2666 while (!is->abort_request) {
2672 /* disable interrupting */
2673 global_video_state = NULL;
2675 /* close each stream */
2676 if (is->audio_stream >= 0)
2677 stream_component_close(is, is->audio_stream);
2678 if (is->video_stream >= 0)
2679 stream_component_close(is, is->video_stream);
2680 if (is->subtitle_stream >= 0)
2681 stream_component_close(is, is->subtitle_stream);
2683 av_close_input_file(is->ic);
2684 is->ic = NULL; /* safety */
2686 url_set_interrupt_cb(NULL);
2691 event.type = FF_QUIT_EVENT;
2692 event.user.data1 = is;
2693 SDL_PushEvent(&event);
2698 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2702 is = av_mallocz(sizeof(VideoState));
2705 av_strlcpy(is->filename, filename, sizeof(is->filename));
2706 is->iformat = iformat;
2710 /* start video display */
2711 is->pictq_mutex = SDL_CreateMutex();
2712 is->pictq_cond = SDL_CreateCond();
2714 is->subpq_mutex = SDL_CreateMutex();
2715 is->subpq_cond = SDL_CreateCond();
2717 is->av_sync_type = av_sync_type;
2718 is->parse_tid = SDL_CreateThread(decode_thread, is);
2719 if (!is->parse_tid) {
2726 static void stream_cycle_channel(VideoState *is, int codec_type)
2728 AVFormatContext *ic = is->ic;
2729 int start_index, stream_index;
2732 if (codec_type == AVMEDIA_TYPE_VIDEO)
2733 start_index = is->video_stream;
2734 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2735 start_index = is->audio_stream;
2737 start_index = is->subtitle_stream;
2738 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2740 stream_index = start_index;
2742 if (++stream_index >= is->ic->nb_streams)
2744 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2751 if (stream_index == start_index)
2753 st = ic->streams[stream_index];
2754 if (st->codec->codec_type == codec_type) {
2755 /* check that parameters are OK */
2756 switch(codec_type) {
2757 case AVMEDIA_TYPE_AUDIO:
2758 if (st->codec->sample_rate != 0 &&
2759 st->codec->channels != 0)
2762 case AVMEDIA_TYPE_VIDEO:
2763 case AVMEDIA_TYPE_SUBTITLE:
2771 stream_component_close(is, start_index);
2772 stream_component_open(is, stream_index);
2776 static void toggle_full_screen(void)
2778 is_full_screen = !is_full_screen;
2779 if (!fs_screen_width) {
2780 /* use default SDL method */
2781 // SDL_WM_ToggleFullScreen(screen);
2783 video_open(cur_stream);
2786 static void toggle_pause(void)
2789 stream_pause(cur_stream);
2793 static void step_to_next_frame(void)
2796 /* if the stream is paused unpause it, then step */
2797 if (cur_stream->paused)
2798 stream_pause(cur_stream);
2803 static void toggle_audio_display(void)
2806 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2807 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2808 fill_rectangle(screen,
2809 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2811 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2815 /* handle an event sent by the GUI */
2816 static void event_loop(void)
2819 double incr, pos, frac;
2823 SDL_WaitEvent(&event);
2824 switch(event.type) {
2826 if (exit_on_keydown) {
2830 switch(event.key.keysym.sym) {
2836 toggle_full_screen();
2842 case SDLK_s: //S: Step to next frame
2843 step_to_next_frame();
2847 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2851 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2855 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2858 toggle_audio_display();
2873 if (seek_by_bytes) {
2874 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2875 pos= cur_stream->video_current_pos;
2876 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2877 pos= cur_stream->audio_pkt.pos;
2879 pos = url_ftell(cur_stream->ic->pb);
2880 if (cur_stream->ic->bit_rate)
2881 incr *= cur_stream->ic->bit_rate / 8.0;
2885 stream_seek(cur_stream, pos, incr, 1);
2887 pos = get_master_clock(cur_stream);
2889 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2897 case SDL_MOUSEBUTTONDOWN:
2898 if (exit_on_mousedown) {
2902 case SDL_MOUSEMOTION:
2903 if(event.type ==SDL_MOUSEBUTTONDOWN){
2906 if(event.motion.state != SDL_PRESSED)
2911 if(seek_by_bytes || cur_stream->ic->duration<=0){
2912 uint64_t size= url_fsize(cur_stream->ic->pb);
2913 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2917 int tns, thh, tmm, tss;
2918 tns = cur_stream->ic->duration/1000000LL;
2920 tmm = (tns%3600)/60;
2922 frac = x/cur_stream->width;
2927 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2928 hh, mm, ss, thh, tmm, tss);
2929 ts = frac*cur_stream->ic->duration;
2930 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2931 ts += cur_stream->ic->start_time;
2932 stream_seek(cur_stream, ts, 0, 0);
2936 case SDL_VIDEORESIZE:
2938 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2939 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2940 screen_width = cur_stream->width = event.resize.w;
2941 screen_height= cur_stream->height= event.resize.h;
2948 case FF_ALLOC_EVENT:
2949 video_open(event.user.data1);
2950 alloc_picture(event.user.data1);
2952 case FF_REFRESH_EVENT:
2953 video_refresh_timer(event.user.data1);
2954 cur_stream->refresh=0;
2962 static void opt_frame_size(const char *arg)
2964 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2965 fprintf(stderr, "Incorrect frame size\n");
2968 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2969 fprintf(stderr, "Frame size must be a multiple of 2\n");
2974 static int opt_width(const char *opt, const char *arg)
2976 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2980 static int opt_height(const char *opt, const char *arg)
2982 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2986 static void opt_format(const char *arg)
2988 file_iformat = av_find_input_format(arg);
2989 if (!file_iformat) {
2990 fprintf(stderr, "Unknown input format: %s\n", arg);
2995 static void opt_frame_pix_fmt(const char *arg)
2997 frame_pix_fmt = av_get_pix_fmt(arg);
3000 static int opt_sync(const char *opt, const char *arg)
3002 if (!strcmp(arg, "audio"))
3003 av_sync_type = AV_SYNC_AUDIO_MASTER;
3004 else if (!strcmp(arg, "video"))
3005 av_sync_type = AV_SYNC_VIDEO_MASTER;
3006 else if (!strcmp(arg, "ext"))
3007 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
3009 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
3015 static int opt_seek(const char *opt, const char *arg)
3017 start_time = parse_time_or_die(opt, arg, 1);
3021 static int opt_duration(const char *opt, const char *arg)
3023 duration = parse_time_or_die(opt, arg, 1);
3027 static int opt_debug(const char *opt, const char *arg)
3029 av_log_set_level(99);
3030 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3034 static int opt_vismv(const char *opt, const char *arg)
3036 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
3040 static int opt_thread_count(const char *opt, const char *arg)
3042 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3044 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3049 static const OptionDef options[] = {
3050 #include "cmdutils_common_opts.h"
3051 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3052 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3053 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3054 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3055 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3056 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3057 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3058 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3059 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3060 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3061 { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
3062 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3063 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3064 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3065 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3066 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3067 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3068 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3069 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3070 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3071 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3072 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3073 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3074 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3075 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3076 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3077 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
3078 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
3079 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
3080 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3081 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3082 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3083 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3084 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3085 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3086 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3087 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3089 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3091 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3092 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3096 static void show_usage(void)
3098 printf("Simple media player\n");
3099 printf("usage: ffplay [options] input_file\n");
3103 static void show_help(void)
3106 show_help_options(options, "Main options:\n",
3108 show_help_options(options, "\nAdvanced options:\n",
3109 OPT_EXPERT, OPT_EXPERT);
3110 printf("\nWhile playing:\n"
3112 "f toggle full screen\n"
3114 "a cycle audio channel\n"
3115 "v cycle video channel\n"
3116 "t cycle subtitle channel\n"
3117 "w show audio waves\n"
3118 "s activate frame-step mode\n"
3119 "left/right seek backward/forward 10 seconds\n"
3120 "down/up seek backward/forward 1 minute\n"
3121 "mouse click seek to percentage in file corresponding to fraction of width\n"
3125 static void opt_input_file(const char *filename)
3127 if (input_filename) {
3128 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3129 filename, input_filename);
3132 if (!strcmp(filename, "-"))
3134 input_filename = filename;
3137 /* Called from the main */
3138 int main(int argc, char **argv)
3142 /* register all codecs, demux and protocols */
3143 avcodec_register_all();
3145 avdevice_register_all();
3148 avfilter_register_all();
3152 for(i=0; i<AVMEDIA_TYPE_NB; i++){
3153 avcodec_opts[i]= avcodec_alloc_context2(i);
3155 avformat_opts = avformat_alloc_context();
3156 #if !CONFIG_AVFILTER
3157 sws_opts = sws_getContext(16,16,0, 16,16,0, sws_flags, NULL,NULL,NULL);
3162 parse_options(argc, argv, options, opt_input_file);
3164 if (!input_filename) {
3166 fprintf(stderr, "An input file must be specified\n");
3167 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3171 if (display_disable) {
3174 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3175 #if !defined(__MINGW32__) && !defined(__APPLE__)
3176 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3178 if (SDL_Init (flags)) {
3179 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3183 if (!display_disable) {
3184 #if HAVE_SDL_VIDEO_SIZE
3185 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3186 fs_screen_width = vi->current_w;
3187 fs_screen_height = vi->current_h;
3191 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3192 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3193 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3195 av_init_packet(&flush_pkt);
3196 flush_pkt.data= "FLUSH";
3198 cur_stream = stream_open(input_filename, file_iformat);