2 * ffplay : Simple Media Player based on the Libav libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav 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 * Libav 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 Libav; 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 "libavutil/imgutils.h"
30 #include "libavutil/dict.h"
31 #include "libavutil/parseutils.h"
32 #include "libavutil/samplefmt.h"
33 #include "libavformat/avformat.h"
34 #include "libavdevice/avdevice.h"
35 #include "libswscale/swscale.h"
36 #include "libavcodec/audioconvert.h"
37 #include "libavutil/opt.h"
38 #include "libavcodec/avfft.h"
41 # include "libavfilter/avfilter.h"
42 # include "libavfilter/avfiltergraph.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;
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 AVSampleFormat 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;
207 PtsCorrectionContext pts_ctx;
210 AVFilterContext *out_video_filter; ///<the last filter in the video chain
214 float skip_frames_index;
218 static void show_help(void);
220 /* options specified by the user */
221 static AVInputFormat *file_iformat;
222 static const char *input_filename;
223 static const char *window_title;
224 static int fs_screen_width;
225 static int fs_screen_height;
226 static int screen_width = 0;
227 static int screen_height = 0;
228 static int frame_width = 0;
229 static int frame_height = 0;
230 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
231 static int audio_disable;
232 static int video_disable;
233 static int wanted_stream[AVMEDIA_TYPE_NB]={
234 [AVMEDIA_TYPE_AUDIO]=-1,
235 [AVMEDIA_TYPE_VIDEO]=-1,
236 [AVMEDIA_TYPE_SUBTITLE]=-1,
238 static int seek_by_bytes=-1;
239 static int display_disable;
240 static int show_status = 1;
241 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
242 static int64_t start_time = AV_NOPTS_VALUE;
243 static int64_t duration = AV_NOPTS_VALUE;
244 static int debug = 0;
245 static int debug_mv = 0;
247 static int thread_count = 1;
248 static int workaround_bugs = 1;
250 static int genpts = 0;
251 static int lowres = 0;
252 static int idct = FF_IDCT_AUTO;
253 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
254 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
255 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
256 static int error_recognition = FF_ER_CAREFUL;
257 static int error_concealment = 3;
258 static int decoder_reorder_pts= -1;
260 static int exit_on_keydown;
261 static int exit_on_mousedown;
263 static int framedrop=1;
265 static int rdftspeed=20;
267 static char *vfilters = NULL;
270 /* current context */
271 static int is_full_screen;
272 static VideoState *cur_stream;
273 static int64_t audio_callback_time;
275 static AVPacket flush_pkt;
277 #define FF_ALLOC_EVENT (SDL_USEREVENT)
278 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
279 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
281 static SDL_Surface *screen;
283 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
285 /* packet queue handling */
286 static void packet_queue_init(PacketQueue *q)
288 memset(q, 0, sizeof(PacketQueue));
289 q->mutex = SDL_CreateMutex();
290 q->cond = SDL_CreateCond();
291 packet_queue_put(q, &flush_pkt);
294 static void packet_queue_flush(PacketQueue *q)
296 AVPacketList *pkt, *pkt1;
298 SDL_LockMutex(q->mutex);
299 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
301 av_free_packet(&pkt->pkt);
308 SDL_UnlockMutex(q->mutex);
311 static void packet_queue_end(PacketQueue *q)
313 packet_queue_flush(q);
314 SDL_DestroyMutex(q->mutex);
315 SDL_DestroyCond(q->cond);
318 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
322 /* duplicate the packet */
323 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
326 pkt1 = av_malloc(sizeof(AVPacketList));
333 SDL_LockMutex(q->mutex);
339 q->last_pkt->next = pkt1;
342 q->size += pkt1->pkt.size + sizeof(*pkt1);
343 /* XXX: should duplicate packet data in DV case */
344 SDL_CondSignal(q->cond);
346 SDL_UnlockMutex(q->mutex);
350 static void packet_queue_abort(PacketQueue *q)
352 SDL_LockMutex(q->mutex);
354 q->abort_request = 1;
356 SDL_CondSignal(q->cond);
358 SDL_UnlockMutex(q->mutex);
361 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
362 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
367 SDL_LockMutex(q->mutex);
370 if (q->abort_request) {
377 q->first_pkt = pkt1->next;
381 q->size -= pkt1->pkt.size + sizeof(*pkt1);
390 SDL_CondWait(q->cond, q->mutex);
393 SDL_UnlockMutex(q->mutex);
397 static inline void fill_rectangle(SDL_Surface *screen,
398 int x, int y, int w, int h, int color)
405 SDL_FillRect(screen, &rect, color);
408 #define ALPHA_BLEND(a, oldp, newp, s)\
409 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
411 #define RGBA_IN(r, g, b, a, s)\
413 unsigned int v = ((const uint32_t *)(s))[0];\
414 a = (v >> 24) & 0xff;\
415 r = (v >> 16) & 0xff;\
416 g = (v >> 8) & 0xff;\
420 #define YUVA_IN(y, u, v, a, s, pal)\
422 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
423 a = (val >> 24) & 0xff;\
424 y = (val >> 16) & 0xff;\
425 u = (val >> 8) & 0xff;\
429 #define YUVA_OUT(d, y, u, v, a)\
431 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
437 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
439 int wrap, wrap3, width2, skip2;
440 int y, u, v, a, u1, v1, a1, w, h;
441 uint8_t *lum, *cb, *cr;
444 int dstx, dsty, dstw, dsth;
446 dstw = av_clip(rect->w, 0, imgw);
447 dsth = av_clip(rect->h, 0, imgh);
448 dstx = av_clip(rect->x, 0, imgw - dstw);
449 dsty = av_clip(rect->y, 0, imgh - dsth);
450 lum = dst->data[0] + dsty * dst->linesize[0];
451 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
452 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
454 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
456 wrap = dst->linesize[0];
457 wrap3 = rect->pict.linesize[0];
458 p = rect->pict.data[0];
459 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
467 YUVA_IN(y, u, v, a, p, pal);
468 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
469 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
470 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
476 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
477 YUVA_IN(y, u, v, a, p, pal);
481 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
483 YUVA_IN(y, u, v, a, p + BPP, pal);
487 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
488 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
489 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
496 YUVA_IN(y, u, v, a, p, pal);
497 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
498 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
499 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
503 p += wrap3 - dstw * BPP;
504 lum += wrap - dstw - dstx;
505 cb += dst->linesize[1] - width2 - skip2;
506 cr += dst->linesize[2] - width2 - skip2;
508 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
514 YUVA_IN(y, u, v, a, p, pal);
518 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
521 YUVA_IN(y, u, v, a, p, pal);
525 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
526 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
527 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
533 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
534 YUVA_IN(y, u, v, a, p, pal);
538 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
540 YUVA_IN(y, u, v, a, p + BPP, pal);
544 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
548 YUVA_IN(y, u, v, a, p, pal);
552 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
554 YUVA_IN(y, u, v, a, p + BPP, pal);
558 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
560 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
561 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
565 p += -wrap3 + 2 * BPP;
569 YUVA_IN(y, u, v, a, p, pal);
573 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
576 YUVA_IN(y, u, v, a, p, pal);
580 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
581 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
582 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
588 p += wrap3 + (wrap3 - dstw * BPP);
589 lum += wrap + (wrap - dstw - dstx);
590 cb += dst->linesize[1] - width2 - skip2;
591 cr += dst->linesize[2] - width2 - skip2;
593 /* handle odd height */
600 YUVA_IN(y, u, v, a, p, pal);
601 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
602 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
603 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
609 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
610 YUVA_IN(y, u, v, a, p, pal);
614 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
616 YUVA_IN(y, u, v, a, p + BPP, pal);
620 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
621 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
622 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
629 YUVA_IN(y, u, v, a, p, pal);
630 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
631 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
632 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
637 static void free_subpicture(SubPicture *sp)
639 avsubtitle_free(&sp->sub);
642 static void video_image_display(VideoState *is)
648 int width, height, x, y;
652 vp = &is->pictq[is->pictq_rindex];
655 if (vp->picref->video->pixel_aspect.num == 0)
658 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
661 /* XXX: use variable in the frame */
662 if (is->video_st->sample_aspect_ratio.num)
663 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
664 else if (is->video_st->codec->sample_aspect_ratio.num)
665 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
669 if (aspect_ratio <= 0.0)
671 aspect_ratio *= (float)vp->width / (float)vp->height;
675 if (is->subpq_size > 0)
677 sp = &is->subpq[is->subpq_rindex];
679 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
681 SDL_LockYUVOverlay (vp->bmp);
683 pict.data[0] = vp->bmp->pixels[0];
684 pict.data[1] = vp->bmp->pixels[2];
685 pict.data[2] = vp->bmp->pixels[1];
687 pict.linesize[0] = vp->bmp->pitches[0];
688 pict.linesize[1] = vp->bmp->pitches[2];
689 pict.linesize[2] = vp->bmp->pitches[1];
691 for (i = 0; i < sp->sub.num_rects; i++)
692 blend_subrect(&pict, sp->sub.rects[i],
693 vp->bmp->w, vp->bmp->h);
695 SDL_UnlockYUVOverlay (vp->bmp);
701 /* XXX: we suppose the screen has a 1.0 pixel ratio */
703 width = ((int)rint(height * aspect_ratio)) & ~1;
704 if (width > is->width) {
706 height = ((int)rint(width / aspect_ratio)) & ~1;
708 x = (is->width - width) / 2;
709 y = (is->height - height) / 2;
710 is->no_background = 0;
711 rect.x = is->xleft + x;
712 rect.y = is->ytop + y;
715 SDL_DisplayYUVOverlay(vp->bmp, &rect);
719 /* get the current audio output buffer size, in samples. With SDL, we
720 cannot have a precise information */
721 static int audio_write_get_buf_size(VideoState *is)
723 return is->audio_buf_size - is->audio_buf_index;
726 static inline int compute_mod(int a, int b)
735 static void video_audio_display(VideoState *s)
737 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
738 int ch, channels, h, h2, bgcolor, fgcolor;
740 int rdft_bits, nb_freq;
742 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
744 nb_freq= 1<<(rdft_bits-1);
746 /* compute display index : center on currently output samples */
747 channels = s->audio_st->codec->channels;
748 nb_display_channels = channels;
750 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
752 delay = audio_write_get_buf_size(s);
755 /* to be more precise, we take into account the time spent since
756 the last buffer computation */
757 if (audio_callback_time) {
758 time_diff = av_gettime() - audio_callback_time;
759 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
762 delay += 2*data_used;
763 if (delay < data_used)
766 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
767 if(s->show_audio==1){
769 for(i=0; i<1000; i+=channels){
770 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
771 int a= s->sample_array[idx];
772 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
773 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
774 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
776 if(h<score && (b^c)<0){
783 s->last_i_start = i_start;
785 i_start = s->last_i_start;
788 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
789 if(s->show_audio==1){
790 fill_rectangle(screen,
791 s->xleft, s->ytop, s->width, s->height,
794 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
796 /* total height for one channel */
797 h = s->height / nb_display_channels;
798 /* graph height / 2 */
800 for(ch = 0;ch < nb_display_channels; ch++) {
802 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
803 for(x = 0; x < s->width; x++) {
804 y = (s->sample_array[i] * h2) >> 15;
811 fill_rectangle(screen,
812 s->xleft + x, ys, 1, y,
815 if (i >= SAMPLE_ARRAY_SIZE)
816 i -= SAMPLE_ARRAY_SIZE;
820 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
822 for(ch = 1;ch < nb_display_channels; ch++) {
823 y = s->ytop + ch * h;
824 fill_rectangle(screen,
825 s->xleft, y, s->width, 1,
828 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
830 nb_display_channels= FFMIN(nb_display_channels, 2);
831 if(rdft_bits != s->rdft_bits){
832 av_rdft_end(s->rdft);
833 av_free(s->rdft_data);
834 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
835 s->rdft_bits= rdft_bits;
836 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
840 for(ch = 0;ch < nb_display_channels; ch++) {
841 data[ch] = s->rdft_data + 2*nb_freq*ch;
843 for(x = 0; x < 2*nb_freq; x++) {
844 double w= (x-nb_freq)*(1.0/nb_freq);
845 data[ch][x]= s->sample_array[i]*(1.0-w*w);
847 if (i >= SAMPLE_ARRAY_SIZE)
848 i -= SAMPLE_ARRAY_SIZE;
850 av_rdft_calc(s->rdft, data[ch]);
852 //least efficient way to do this, we should of course directly access it but its more than fast enough
853 for(y=0; y<s->height; y++){
854 double w= 1/sqrt(nb_freq);
855 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]));
856 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
857 + data[1][2*y+1]*data[1][2*y+1])) : a;
860 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
862 fill_rectangle(screen,
863 s->xpos, s->height-y, 1, 1,
867 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
869 if(s->xpos >= s->width)
874 static int video_open(VideoState *is){
875 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
878 if(is_full_screen) flags |= SDL_FULLSCREEN;
879 else flags |= SDL_RESIZABLE;
881 if (is_full_screen && fs_screen_width) {
883 h = fs_screen_height;
884 } else if(!is_full_screen && screen_width){
888 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
889 w = is->out_video_filter->inputs[0]->w;
890 h = is->out_video_filter->inputs[0]->h;
892 }else if (is->video_st && is->video_st->codec->width){
893 w = is->video_st->codec->width;
894 h = is->video_st->codec->height;
900 if(screen && is->width == screen->w && screen->w == w
901 && is->height== screen->h && screen->h == h)
905 screen = SDL_SetVideoMode(w, h, 0, flags);
907 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
908 screen = SDL_SetVideoMode(w, h, 24, flags);
911 fprintf(stderr, "SDL: could not set video mode - exiting\n");
915 window_title = input_filename;
916 SDL_WM_SetCaption(window_title, window_title);
918 is->width = screen->w;
919 is->height = screen->h;
924 /* display the current picture, if any */
925 static void video_display(VideoState *is)
928 video_open(cur_stream);
929 if (is->audio_st && is->show_audio)
930 video_audio_display(is);
931 else if (is->video_st)
932 video_image_display(is);
935 static int refresh_thread(void *opaque)
937 VideoState *is= opaque;
938 while(!is->abort_request){
940 event.type = FF_REFRESH_EVENT;
941 event.user.data1 = opaque;
944 SDL_PushEvent(&event);
946 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
951 /* get the current audio clock value */
952 static double get_audio_clock(VideoState *is)
955 int hw_buf_size, bytes_per_sec;
956 pts = is->audio_clock;
957 hw_buf_size = audio_write_get_buf_size(is);
960 bytes_per_sec = is->audio_st->codec->sample_rate *
961 2 * is->audio_st->codec->channels;
964 pts -= (double)hw_buf_size / bytes_per_sec;
968 /* get the current video clock value */
969 static double get_video_clock(VideoState *is)
972 return is->video_current_pts;
974 return is->video_current_pts_drift + av_gettime() / 1000000.0;
978 /* get the current external clock value */
979 static double get_external_clock(VideoState *is)
983 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
986 /* get the current master clock value */
987 static double get_master_clock(VideoState *is)
991 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
993 val = get_video_clock(is);
995 val = get_audio_clock(is);
996 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
998 val = get_audio_clock(is);
1000 val = get_video_clock(is);
1002 val = get_external_clock(is);
1007 /* seek in the stream */
1008 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1010 if (!is->seek_req) {
1013 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1015 is->seek_flags |= AVSEEK_FLAG_BYTE;
1020 /* pause or resume the video */
1021 static void stream_pause(VideoState *is)
1024 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1025 if(is->read_pause_return != AVERROR(ENOSYS)){
1026 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1028 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1030 is->paused = !is->paused;
1033 static double compute_target_time(double frame_current_pts, VideoState *is)
1035 double delay, sync_threshold, diff;
1037 /* compute nominal delay */
1038 delay = frame_current_pts - is->frame_last_pts;
1039 if (delay <= 0 || delay >= 10.0) {
1040 /* if incorrect delay, use previous one */
1041 delay = is->frame_last_delay;
1043 is->frame_last_delay = delay;
1045 is->frame_last_pts = frame_current_pts;
1047 /* update delay to follow master synchronisation source */
1048 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1049 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1050 /* if video is slave, we try to correct big delays by
1051 duplicating or deleting a frame */
1052 diff = get_video_clock(is) - get_master_clock(is);
1054 /* skip or repeat frame. We take into account the
1055 delay to compute the threshold. I still don't know
1056 if it is the best guess */
1057 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1058 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1059 if (diff <= -sync_threshold)
1061 else if (diff >= sync_threshold)
1065 is->frame_timer += delay;
1067 av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1068 delay, frame_current_pts, -diff);
1070 return is->frame_timer;
1073 /* called to display each frame */
1074 static void video_refresh_timer(void *opaque)
1076 VideoState *is = opaque;
1079 SubPicture *sp, *sp2;
1083 if (is->pictq_size == 0) {
1084 //nothing to do, no picture to display in the que
1086 double time= av_gettime()/1000000.0;
1088 /* dequeue the picture */
1089 vp = &is->pictq[is->pictq_rindex];
1091 if(time < vp->target_clock)
1093 /* update current video pts */
1094 is->video_current_pts = vp->pts;
1095 is->video_current_pts_drift = is->video_current_pts - time;
1096 is->video_current_pos = vp->pos;
1097 if(is->pictq_size > 1){
1098 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1099 assert(nextvp->target_clock >= vp->target_clock);
1100 next_target= nextvp->target_clock;
1102 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1104 if(framedrop && time > next_target){
1105 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1106 if(is->pictq_size > 1 || time > next_target + 0.5){
1107 /* update queue size and signal for next picture */
1108 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1109 is->pictq_rindex = 0;
1111 SDL_LockMutex(is->pictq_mutex);
1113 SDL_CondSignal(is->pictq_cond);
1114 SDL_UnlockMutex(is->pictq_mutex);
1119 if(is->subtitle_st) {
1120 if (is->subtitle_stream_changed) {
1121 SDL_LockMutex(is->subpq_mutex);
1123 while (is->subpq_size) {
1124 free_subpicture(&is->subpq[is->subpq_rindex]);
1126 /* update queue size and signal for next picture */
1127 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1128 is->subpq_rindex = 0;
1132 is->subtitle_stream_changed = 0;
1134 SDL_CondSignal(is->subpq_cond);
1135 SDL_UnlockMutex(is->subpq_mutex);
1137 if (is->subpq_size > 0) {
1138 sp = &is->subpq[is->subpq_rindex];
1140 if (is->subpq_size > 1)
1141 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1145 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1146 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1148 free_subpicture(sp);
1150 /* update queue size and signal for next picture */
1151 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1152 is->subpq_rindex = 0;
1154 SDL_LockMutex(is->subpq_mutex);
1156 SDL_CondSignal(is->subpq_cond);
1157 SDL_UnlockMutex(is->subpq_mutex);
1163 /* display picture */
1164 if (!display_disable)
1167 /* update queue size and signal for next picture */
1168 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1169 is->pictq_rindex = 0;
1171 SDL_LockMutex(is->pictq_mutex);
1173 SDL_CondSignal(is->pictq_cond);
1174 SDL_UnlockMutex(is->pictq_mutex);
1176 } else if (is->audio_st) {
1177 /* draw the next audio frame */
1179 /* if only audio stream, then display the audio bars (better
1180 than nothing, just to test the implementation */
1182 /* display picture */
1183 if (!display_disable)
1187 static int64_t last_time;
1189 int aqsize, vqsize, sqsize;
1192 cur_time = av_gettime();
1193 if (!last_time || (cur_time - last_time) >= 30000) {
1198 aqsize = is->audioq.size;
1200 vqsize = is->videoq.size;
1201 if (is->subtitle_st)
1202 sqsize = is->subtitleq.size;
1204 if (is->audio_st && is->video_st)
1205 av_diff = get_audio_clock(is) - get_video_clock(is);
1206 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1207 get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1209 last_time = cur_time;
1214 static void stream_close(VideoState *is)
1218 /* XXX: use a special url_shutdown call to abort parse cleanly */
1219 is->abort_request = 1;
1220 SDL_WaitThread(is->parse_tid, NULL);
1221 SDL_WaitThread(is->refresh_tid, NULL);
1223 /* free all pictures */
1224 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1228 avfilter_unref_buffer(vp->picref);
1233 SDL_FreeYUVOverlay(vp->bmp);
1237 SDL_DestroyMutex(is->pictq_mutex);
1238 SDL_DestroyCond(is->pictq_cond);
1239 SDL_DestroyMutex(is->subpq_mutex);
1240 SDL_DestroyCond(is->subpq_cond);
1241 #if !CONFIG_AVFILTER
1242 if (is->img_convert_ctx)
1243 sws_freeContext(is->img_convert_ctx);
1248 static void do_exit(void)
1251 stream_close(cur_stream);
1261 av_log(NULL, AV_LOG_QUIET, "");
1265 /* allocate a picture (needs to do that in main thread to avoid
1266 potential locking problems */
1267 static void alloc_picture(void *opaque)
1269 VideoState *is = opaque;
1272 vp = &is->pictq[is->pictq_windex];
1275 SDL_FreeYUVOverlay(vp->bmp);
1279 avfilter_unref_buffer(vp->picref);
1282 vp->width = is->out_video_filter->inputs[0]->w;
1283 vp->height = is->out_video_filter->inputs[0]->h;
1284 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1286 vp->width = is->video_st->codec->width;
1287 vp->height = is->video_st->codec->height;
1288 vp->pix_fmt = is->video_st->codec->pix_fmt;
1291 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1294 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1295 /* SDL allocates a buffer smaller than requested if the video
1296 * overlay hardware is unable to support the requested size. */
1297 fprintf(stderr, "Error: the video system does not support an image\n"
1298 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1299 "to reduce the image size.\n", vp->width, vp->height );
1303 SDL_LockMutex(is->pictq_mutex);
1305 SDL_CondSignal(is->pictq_cond);
1306 SDL_UnlockMutex(is->pictq_mutex);
1311 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1313 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1319 int dst_pix_fmt = PIX_FMT_YUV420P;
1321 /* wait until we have space to put a new picture */
1322 SDL_LockMutex(is->pictq_mutex);
1324 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1325 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1327 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1328 !is->videoq.abort_request) {
1329 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1331 SDL_UnlockMutex(is->pictq_mutex);
1333 if (is->videoq.abort_request)
1336 vp = &is->pictq[is->pictq_windex];
1338 /* alloc or resize hardware picture buffer */
1341 vp->width != is->out_video_filter->inputs[0]->w ||
1342 vp->height != is->out_video_filter->inputs[0]->h) {
1344 vp->width != is->video_st->codec->width ||
1345 vp->height != is->video_st->codec->height) {
1351 /* the allocation must be done in the main thread to avoid
1353 event.type = FF_ALLOC_EVENT;
1354 event.user.data1 = is;
1355 SDL_PushEvent(&event);
1357 /* wait until the picture is allocated */
1358 SDL_LockMutex(is->pictq_mutex);
1359 while (!vp->allocated && !is->videoq.abort_request) {
1360 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1362 SDL_UnlockMutex(is->pictq_mutex);
1364 if (is->videoq.abort_request)
1368 /* if the frame is not skipped, then display it */
1373 avfilter_unref_buffer(vp->picref);
1374 vp->picref = src_frame->opaque;
1377 /* get a pointer on the bitmap */
1378 SDL_LockYUVOverlay (vp->bmp);
1380 memset(&pict,0,sizeof(AVPicture));
1381 pict.data[0] = vp->bmp->pixels[0];
1382 pict.data[1] = vp->bmp->pixels[2];
1383 pict.data[2] = vp->bmp->pixels[1];
1385 pict.linesize[0] = vp->bmp->pitches[0];
1386 pict.linesize[1] = vp->bmp->pitches[2];
1387 pict.linesize[2] = vp->bmp->pitches[1];
1390 pict_src.data[0] = src_frame->data[0];
1391 pict_src.data[1] = src_frame->data[1];
1392 pict_src.data[2] = src_frame->data[2];
1394 pict_src.linesize[0] = src_frame->linesize[0];
1395 pict_src.linesize[1] = src_frame->linesize[1];
1396 pict_src.linesize[2] = src_frame->linesize[2];
1398 //FIXME use direct rendering
1399 av_picture_copy(&pict, &pict_src,
1400 vp->pix_fmt, vp->width, vp->height);
1402 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1403 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1404 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1405 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1406 if (is->img_convert_ctx == NULL) {
1407 fprintf(stderr, "Cannot initialize the conversion context\n");
1410 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1411 0, vp->height, pict.data, pict.linesize);
1413 /* update the bitmap content */
1414 SDL_UnlockYUVOverlay(vp->bmp);
1419 /* now we can update the picture count */
1420 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1421 is->pictq_windex = 0;
1422 SDL_LockMutex(is->pictq_mutex);
1423 vp->target_clock= compute_target_time(vp->pts, is);
1426 SDL_UnlockMutex(is->pictq_mutex);
1432 * compute the exact PTS for the picture if it is omitted in the stream
1433 * @param pts1 the dts of the pkt / pts of the frame
1435 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1437 double frame_delay, pts;
1442 /* update video clock with pts, if present */
1443 is->video_clock = pts;
1445 pts = is->video_clock;
1447 /* update video clock for next frame */
1448 frame_delay = av_q2d(is->video_st->codec->time_base);
1449 /* for MPEG2, the frame can be repeated, so we update the
1450 clock accordingly */
1451 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1452 is->video_clock += frame_delay;
1454 return queue_picture(is, src_frame, pts, pos);
1457 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1459 int len1, got_picture, i;
1461 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1464 if (pkt->data == flush_pkt.data) {
1465 avcodec_flush_buffers(is->video_st->codec);
1467 SDL_LockMutex(is->pictq_mutex);
1468 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1469 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1470 is->pictq[i].target_clock= 0;
1472 while (is->pictq_size && !is->videoq.abort_request) {
1473 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1475 is->video_current_pos = -1;
1476 SDL_UnlockMutex(is->pictq_mutex);
1478 init_pts_correction(&is->pts_ctx);
1479 is->frame_last_pts = AV_NOPTS_VALUE;
1480 is->frame_last_delay = 0;
1481 is->frame_timer = (double)av_gettime() / 1000000.0;
1482 is->skip_frames = 1;
1483 is->skip_frames_index = 0;
1487 len1 = avcodec_decode_video2(is->video_st->codec,
1488 frame, &got_picture,
1492 if (decoder_reorder_pts == -1) {
1493 *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
1494 } else if (decoder_reorder_pts) {
1495 *pts = frame->pkt_pts;
1497 *pts = frame->pkt_dts;
1500 if (*pts == AV_NOPTS_VALUE) {
1504 is->skip_frames_index += 1;
1505 if(is->skip_frames_index >= is->skip_frames){
1506 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1521 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1523 AVFilterContext *ctx = codec->opaque;
1524 AVFilterBufferRef *ref;
1525 int perms = AV_PERM_WRITE;
1526 int i, w, h, stride[4];
1530 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1531 perms |= AV_PERM_NEG_LINESIZES;
1533 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1534 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1535 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1536 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1538 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1542 avcodec_align_dimensions2(codec, &w, &h, stride);
1543 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1547 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1550 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
1551 ref->video->w = codec->width;
1552 ref->video->h = codec->height;
1553 for(i = 0; i < 4; i ++) {
1554 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1555 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1558 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1560 pic->data[i] = ref->data[i];
1561 pic->linesize[i] = ref->linesize[i];
1565 pic->type = FF_BUFFER_TYPE_USER;
1566 pic->reordered_opaque = codec->reordered_opaque;
1567 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1568 else pic->pkt_pts = AV_NOPTS_VALUE;
1572 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1574 memset(pic->data, 0, sizeof(pic->data));
1575 avfilter_unref_buffer(pic->opaque);
1578 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1580 AVFilterBufferRef *ref = pic->opaque;
1582 if (pic->data[0] == NULL) {
1583 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1584 return codec->get_buffer(codec, pic);
1587 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1588 (codec->pix_fmt != ref->format)) {
1589 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1593 pic->reordered_opaque = codec->reordered_opaque;
1594 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1595 else pic->pkt_pts = AV_NOPTS_VALUE;
1599 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1601 FilterPriv *priv = ctx->priv;
1602 AVCodecContext *codec;
1603 if(!opaque) return -1;
1606 codec = priv->is->video_st->codec;
1607 codec->opaque = ctx;
1608 if(codec->codec->capabilities & CODEC_CAP_DR1) {
1610 codec->get_buffer = input_get_buffer;
1611 codec->release_buffer = input_release_buffer;
1612 codec->reget_buffer = input_reget_buffer;
1613 codec->thread_safe_callbacks = 1;
1616 priv->frame = avcodec_alloc_frame();
1621 static void input_uninit(AVFilterContext *ctx)
1623 FilterPriv *priv = ctx->priv;
1624 av_free(priv->frame);
1627 static int input_request_frame(AVFilterLink *link)
1629 FilterPriv *priv = link->src->priv;
1630 AVFilterBufferRef *picref;
1635 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1636 av_free_packet(&pkt);
1641 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1643 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1644 av_image_copy(picref->data, picref->linesize,
1645 priv->frame->data, priv->frame->linesize,
1646 picref->format, link->w, link->h);
1648 av_free_packet(&pkt);
1651 picref->pos = pkt.pos;
1652 picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1653 avfilter_start_frame(link, picref);
1654 avfilter_draw_slice(link, 0, link->h, 1);
1655 avfilter_end_frame(link);
1660 static int input_query_formats(AVFilterContext *ctx)
1662 FilterPriv *priv = ctx->priv;
1663 enum PixelFormat pix_fmts[] = {
1664 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1667 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1671 static int input_config_props(AVFilterLink *link)
1673 FilterPriv *priv = link->src->priv;
1674 AVCodecContext *c = priv->is->video_st->codec;
1677 link->h = c->height;
1678 link->time_base = priv->is->video_st->time_base;
1683 static AVFilter input_filter =
1685 .name = "ffplay_input",
1687 .priv_size = sizeof(FilterPriv),
1690 .uninit = input_uninit,
1692 .query_formats = input_query_formats,
1694 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1695 .outputs = (AVFilterPad[]) {{ .name = "default",
1696 .type = AVMEDIA_TYPE_VIDEO,
1697 .request_frame = input_request_frame,
1698 .config_props = input_config_props, },
1702 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1704 char sws_flags_str[128];
1706 FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1707 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1708 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1709 graph->scale_sws_opts = av_strdup(sws_flags_str);
1711 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1712 NULL, is, graph)) < 0)
1714 if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1715 NULL, &ffsink_ctx, graph)) < 0)
1719 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1720 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1722 outputs->name = av_strdup("in");
1723 outputs->filter_ctx = filt_src;
1724 outputs->pad_idx = 0;
1725 outputs->next = NULL;
1727 inputs->name = av_strdup("out");
1728 inputs->filter_ctx = filt_out;
1729 inputs->pad_idx = 0;
1730 inputs->next = NULL;
1732 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1734 av_freep(&vfilters);
1736 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1740 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1743 is->out_video_filter = filt_out;
1748 #endif /* CONFIG_AVFILTER */
1750 static int video_thread(void *arg)
1752 VideoState *is = arg;
1753 AVFrame *frame= avcodec_alloc_frame();
1759 AVFilterGraph *graph = avfilter_graph_alloc();
1760 AVFilterContext *filt_out = NULL;
1763 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1765 filt_out = is->out_video_filter;
1769 #if !CONFIG_AVFILTER
1772 AVFilterBufferRef *picref;
1775 while (is->paused && !is->videoq.abort_request)
1778 ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1780 pts_int = picref->pts;
1782 frame->opaque = picref;
1785 if (av_cmp_q(tb, is->video_st->time_base)) {
1786 av_unused int64_t pts1 = pts_int;
1787 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1788 av_dlog(NULL, "video_thread(): "
1789 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1790 tb.num, tb.den, pts1,
1791 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1794 ret = get_video_frame(is, frame, &pts_int, &pkt);
1797 if (ret < 0) goto the_end;
1802 pts = pts_int*av_q2d(is->video_st->time_base);
1805 ret = output_picture2(is, frame, pts, pos);
1807 ret = output_picture2(is, frame, pts, pkt.pos);
1808 av_free_packet(&pkt);
1815 stream_pause(cur_stream);
1819 avfilter_graph_free(&graph);
1825 static int subtitle_thread(void *arg)
1827 VideoState *is = arg;
1829 AVPacket pkt1, *pkt = &pkt1;
1830 int len1, got_subtitle;
1833 int r, g, b, y, u, v, a;
1836 while (is->paused && !is->subtitleq.abort_request) {
1839 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1842 if(pkt->data == flush_pkt.data){
1843 avcodec_flush_buffers(is->subtitle_st->codec);
1846 SDL_LockMutex(is->subpq_mutex);
1847 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1848 !is->subtitleq.abort_request) {
1849 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1851 SDL_UnlockMutex(is->subpq_mutex);
1853 if (is->subtitleq.abort_request)
1856 sp = &is->subpq[is->subpq_windex];
1858 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1859 this packet, if any */
1861 if (pkt->pts != AV_NOPTS_VALUE)
1862 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1864 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1865 &sp->sub, &got_subtitle,
1867 if (got_subtitle && sp->sub.format == 0) {
1870 for (i = 0; i < sp->sub.num_rects; i++)
1872 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1874 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1875 y = RGB_TO_Y_CCIR(r, g, b);
1876 u = RGB_TO_U_CCIR(r, g, b, 0);
1877 v = RGB_TO_V_CCIR(r, g, b, 0);
1878 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1882 /* now we can update the picture count */
1883 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1884 is->subpq_windex = 0;
1885 SDL_LockMutex(is->subpq_mutex);
1887 SDL_UnlockMutex(is->subpq_mutex);
1889 av_free_packet(pkt);
1895 /* copy samples for viewing in editor window */
1896 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1900 size = samples_size / sizeof(short);
1902 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1905 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1907 is->sample_array_index += len;
1908 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1909 is->sample_array_index = 0;
1914 /* return the new audio buffer size (samples can be added or deleted
1915 to get better sync if video or external master clock) */
1916 static int synchronize_audio(VideoState *is, short *samples,
1917 int samples_size1, double pts)
1919 int n, samples_size;
1922 n = 2 * is->audio_st->codec->channels;
1923 samples_size = samples_size1;
1925 /* if not master, then we try to remove or add samples to correct the clock */
1926 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1927 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1928 double diff, avg_diff;
1929 int wanted_size, min_size, max_size, nb_samples;
1931 ref_clock = get_master_clock(is);
1932 diff = get_audio_clock(is) - ref_clock;
1934 if (diff < AV_NOSYNC_THRESHOLD) {
1935 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1936 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1937 /* not enough measures to have a correct estimate */
1938 is->audio_diff_avg_count++;
1940 /* estimate the A-V difference */
1941 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1943 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1944 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1945 nb_samples = samples_size / n;
1947 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1948 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1949 if (wanted_size < min_size)
1950 wanted_size = min_size;
1951 else if (wanted_size > max_size)
1952 wanted_size = max_size;
1954 /* add or remove samples to correction the synchro */
1955 if (wanted_size < samples_size) {
1956 /* remove samples */
1957 samples_size = wanted_size;
1958 } else if (wanted_size > samples_size) {
1959 uint8_t *samples_end, *q;
1963 nb = (samples_size - wanted_size);
1964 samples_end = (uint8_t *)samples + samples_size - n;
1965 q = samples_end + n;
1967 memcpy(q, samples_end, n);
1971 samples_size = wanted_size;
1974 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1975 diff, avg_diff, samples_size - samples_size1,
1976 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1979 /* too big difference : may be initial PTS errors, so
1981 is->audio_diff_avg_count = 0;
1982 is->audio_diff_cum = 0;
1986 return samples_size;
1989 /* decode one audio frame and returns its uncompressed size */
1990 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1992 AVPacket *pkt_temp = &is->audio_pkt_temp;
1993 AVPacket *pkt = &is->audio_pkt;
1994 AVCodecContext *dec= is->audio_st->codec;
1995 int n, len1, data_size;
1999 /* NOTE: the audio packet can contain several frames */
2000 while (pkt_temp->size > 0) {
2001 data_size = sizeof(is->audio_buf1);
2002 len1 = avcodec_decode_audio3(dec,
2003 (int16_t *)is->audio_buf1, &data_size,
2006 /* if error, we skip the frame */
2011 pkt_temp->data += len1;
2012 pkt_temp->size -= len1;
2016 if (dec->sample_fmt != is->audio_src_fmt) {
2017 if (is->reformat_ctx)
2018 av_audio_convert_free(is->reformat_ctx);
2019 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2020 dec->sample_fmt, 1, NULL, 0);
2021 if (!is->reformat_ctx) {
2022 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2023 av_get_sample_fmt_name(dec->sample_fmt),
2024 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2027 is->audio_src_fmt= dec->sample_fmt;
2030 if (is->reformat_ctx) {
2031 const void *ibuf[6]= {is->audio_buf1};
2032 void *obuf[6]= {is->audio_buf2};
2033 int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)};
2034 int ostride[6]= {2};
2035 int len= data_size/istride[0];
2036 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2037 printf("av_audio_convert() failed\n");
2040 is->audio_buf= is->audio_buf2;
2041 /* FIXME: existing code assume that data_size equals framesize*channels*2
2042 remove this legacy cruft */
2045 is->audio_buf= is->audio_buf1;
2048 /* if no pts, then compute it */
2049 pts = is->audio_clock;
2051 n = 2 * dec->channels;
2052 is->audio_clock += (double)data_size /
2053 (double)(n * dec->sample_rate);
2056 static double last_clock;
2057 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2058 is->audio_clock - last_clock,
2059 is->audio_clock, pts);
2060 last_clock = is->audio_clock;
2066 /* free the current packet */
2068 av_free_packet(pkt);
2070 if (is->paused || is->audioq.abort_request) {
2074 /* read next packet */
2075 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2077 if(pkt->data == flush_pkt.data){
2078 avcodec_flush_buffers(dec);
2082 pkt_temp->data = pkt->data;
2083 pkt_temp->size = pkt->size;
2085 /* if update the audio clock with the pts */
2086 if (pkt->pts != AV_NOPTS_VALUE) {
2087 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2092 /* prepare a new audio buffer */
2093 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2095 VideoState *is = opaque;
2096 int audio_size, len1;
2099 audio_callback_time = av_gettime();
2102 if (is->audio_buf_index >= is->audio_buf_size) {
2103 audio_size = audio_decode_frame(is, &pts);
2104 if (audio_size < 0) {
2105 /* if error, just output silence */
2106 is->audio_buf = is->audio_buf1;
2107 is->audio_buf_size = 1024;
2108 memset(is->audio_buf, 0, is->audio_buf_size);
2111 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2112 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2114 is->audio_buf_size = audio_size;
2116 is->audio_buf_index = 0;
2118 len1 = is->audio_buf_size - is->audio_buf_index;
2121 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2124 is->audio_buf_index += len1;
2128 /* open a given stream. Return 0 if OK */
2129 static int stream_component_open(VideoState *is, int stream_index)
2131 AVFormatContext *ic = is->ic;
2132 AVCodecContext *avctx;
2134 SDL_AudioSpec wanted_spec, spec;
2136 if (stream_index < 0 || stream_index >= ic->nb_streams)
2138 avctx = ic->streams[stream_index]->codec;
2140 /* prepare audio output */
2141 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2142 if (avctx->channels > 0) {
2143 avctx->request_channels = FFMIN(2, avctx->channels);
2145 avctx->request_channels = 2;
2149 codec = avcodec_find_decoder(avctx->codec_id);
2150 avctx->debug_mv = debug_mv;
2151 avctx->debug = debug;
2152 avctx->workaround_bugs = workaround_bugs;
2153 avctx->lowres = lowres;
2154 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2155 avctx->idct_algo= idct;
2156 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2157 avctx->skip_frame= skip_frame;
2158 avctx->skip_idct= skip_idct;
2159 avctx->skip_loop_filter= skip_loop_filter;
2160 avctx->error_recognition= error_recognition;
2161 avctx->error_concealment= error_concealment;
2162 avctx->thread_count= thread_count;
2164 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2167 avcodec_open(avctx, codec) < 0)
2170 /* prepare audio output */
2171 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2172 wanted_spec.freq = avctx->sample_rate;
2173 wanted_spec.format = AUDIO_S16SYS;
2174 wanted_spec.channels = avctx->channels;
2175 wanted_spec.silence = 0;
2176 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2177 wanted_spec.callback = sdl_audio_callback;
2178 wanted_spec.userdata = is;
2179 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2180 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2183 is->audio_hw_buf_size = spec.size;
2184 is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2187 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2188 switch(avctx->codec_type) {
2189 case AVMEDIA_TYPE_AUDIO:
2190 is->audio_stream = stream_index;
2191 is->audio_st = ic->streams[stream_index];
2192 is->audio_buf_size = 0;
2193 is->audio_buf_index = 0;
2195 /* init averaging filter */
2196 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2197 is->audio_diff_avg_count = 0;
2198 /* since we do not have a precise anough audio fifo fullness,
2199 we correct audio sync only if larger than this threshold */
2200 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2202 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2203 packet_queue_init(&is->audioq);
2206 case AVMEDIA_TYPE_VIDEO:
2207 is->video_stream = stream_index;
2208 is->video_st = ic->streams[stream_index];
2210 packet_queue_init(&is->videoq);
2211 is->video_tid = SDL_CreateThread(video_thread, is);
2213 case AVMEDIA_TYPE_SUBTITLE:
2214 is->subtitle_stream = stream_index;
2215 is->subtitle_st = ic->streams[stream_index];
2216 packet_queue_init(&is->subtitleq);
2218 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2226 static void stream_component_close(VideoState *is, int stream_index)
2228 AVFormatContext *ic = is->ic;
2229 AVCodecContext *avctx;
2231 if (stream_index < 0 || stream_index >= ic->nb_streams)
2233 avctx = ic->streams[stream_index]->codec;
2235 switch(avctx->codec_type) {
2236 case AVMEDIA_TYPE_AUDIO:
2237 packet_queue_abort(&is->audioq);
2241 packet_queue_end(&is->audioq);
2242 if (is->reformat_ctx)
2243 av_audio_convert_free(is->reformat_ctx);
2244 is->reformat_ctx = NULL;
2246 case AVMEDIA_TYPE_VIDEO:
2247 packet_queue_abort(&is->videoq);
2249 /* note: we also signal this mutex to make sure we deblock the
2250 video thread in all cases */
2251 SDL_LockMutex(is->pictq_mutex);
2252 SDL_CondSignal(is->pictq_cond);
2253 SDL_UnlockMutex(is->pictq_mutex);
2255 SDL_WaitThread(is->video_tid, NULL);
2257 packet_queue_end(&is->videoq);
2259 case AVMEDIA_TYPE_SUBTITLE:
2260 packet_queue_abort(&is->subtitleq);
2262 /* note: we also signal this mutex to make sure we deblock the
2263 video thread in all cases */
2264 SDL_LockMutex(is->subpq_mutex);
2265 is->subtitle_stream_changed = 1;
2267 SDL_CondSignal(is->subpq_cond);
2268 SDL_UnlockMutex(is->subpq_mutex);
2270 SDL_WaitThread(is->subtitle_tid, NULL);
2272 packet_queue_end(&is->subtitleq);
2278 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2279 avcodec_close(avctx);
2280 switch(avctx->codec_type) {
2281 case AVMEDIA_TYPE_AUDIO:
2282 is->audio_st = NULL;
2283 is->audio_stream = -1;
2285 case AVMEDIA_TYPE_VIDEO:
2286 is->video_st = NULL;
2287 is->video_stream = -1;
2289 case AVMEDIA_TYPE_SUBTITLE:
2290 is->subtitle_st = NULL;
2291 is->subtitle_stream = -1;
2298 /* since we have only one decoding thread, we can use a global
2299 variable instead of a thread local variable */
2300 static VideoState *global_video_state;
2302 static int decode_interrupt_cb(void)
2304 return (global_video_state && global_video_state->abort_request);
2307 /* this thread gets the stream from the disk or the network */
2308 static int decode_thread(void *arg)
2310 VideoState *is = arg;
2311 AVFormatContext *ic = NULL;
2313 int st_index[AVMEDIA_TYPE_NB];
2314 AVPacket pkt1, *pkt = &pkt1;
2316 int pkt_in_play_range = 0;
2317 AVDictionaryEntry *t;
2319 memset(st_index, -1, sizeof(st_index));
2320 is->video_stream = -1;
2321 is->audio_stream = -1;
2322 is->subtitle_stream = -1;
2324 global_video_state = is;
2325 avio_set_interrupt_cb(decode_interrupt_cb);
2327 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2329 print_error(is->filename, err);
2333 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2334 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2335 ret = AVERROR_OPTION_NOT_FOUND;
2341 ic->flags |= AVFMT_FLAG_GENPTS;
2343 /* Set AVCodecContext options so they will be seen by av_find_stream_info() */
2344 for (i = 0; i < ic->nb_streams; i++) {
2345 AVCodecContext *dec = ic->streams[i]->codec;
2346 switch (dec->codec_type) {
2347 case AVMEDIA_TYPE_AUDIO:
2348 set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO],
2349 AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
2352 case AVMEDIA_TYPE_VIDEO:
2353 set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO],
2354 AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
2360 err = av_find_stream_info(ic);
2362 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2367 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2370 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2372 /* if seeking requested, we execute it */
2373 if (start_time != AV_NOPTS_VALUE) {
2376 timestamp = start_time;
2377 /* add the stream start time */
2378 if (ic->start_time != AV_NOPTS_VALUE)
2379 timestamp += ic->start_time;
2380 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2382 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2383 is->filename, (double)timestamp / AV_TIME_BASE);
2387 for (i = 0; i < ic->nb_streams; i++)
2388 ic->streams[i]->discard = AVDISCARD_ALL;
2390 st_index[AVMEDIA_TYPE_VIDEO] =
2391 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2392 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2394 st_index[AVMEDIA_TYPE_AUDIO] =
2395 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2396 wanted_stream[AVMEDIA_TYPE_AUDIO],
2397 st_index[AVMEDIA_TYPE_VIDEO],
2400 st_index[AVMEDIA_TYPE_SUBTITLE] =
2401 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2402 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2403 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2404 st_index[AVMEDIA_TYPE_AUDIO] :
2405 st_index[AVMEDIA_TYPE_VIDEO]),
2408 av_dump_format(ic, 0, is->filename, 0);
2411 /* open the streams */
2412 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2413 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2417 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2418 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2420 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2422 if (!display_disable)
2426 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2427 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2430 if (is->video_stream < 0 && is->audio_stream < 0) {
2431 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2437 if (is->abort_request)
2439 if (is->paused != is->last_paused) {
2440 is->last_paused = is->paused;
2442 is->read_pause_return= av_read_pause(ic);
2446 #if CONFIG_RTSP_DEMUXER
2447 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2448 /* wait 10 ms to avoid trying to get another packet */
2455 int64_t seek_target= is->seek_pos;
2456 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2457 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2458 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2459 // of the seek_pos/seek_rel variables
2461 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2463 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2465 if (is->audio_stream >= 0) {
2466 packet_queue_flush(&is->audioq);
2467 packet_queue_put(&is->audioq, &flush_pkt);
2469 if (is->subtitle_stream >= 0) {
2470 packet_queue_flush(&is->subtitleq);
2471 packet_queue_put(&is->subtitleq, &flush_pkt);
2473 if (is->video_stream >= 0) {
2474 packet_queue_flush(&is->videoq);
2475 packet_queue_put(&is->videoq, &flush_pkt);
2482 /* if the queue are full, no need to read more */
2483 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2484 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2485 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2486 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2492 if(is->video_stream >= 0){
2493 av_init_packet(pkt);
2496 pkt->stream_index= is->video_stream;
2497 packet_queue_put(&is->videoq, pkt);
2500 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2501 if(loop!=1 && (!loop || --loop)){
2502 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2510 ret = av_read_frame(ic, pkt);
2512 if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
2514 if (ic->pb && ic->pb->error)
2516 SDL_Delay(100); /* wait for user event */
2519 /* check if packet is in play range specified by user, then queue, otherwise discard */
2520 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2521 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2522 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2523 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2524 <= ((double)duration/1000000);
2525 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2526 packet_queue_put(&is->audioq, pkt);
2527 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2528 packet_queue_put(&is->videoq, pkt);
2529 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2530 packet_queue_put(&is->subtitleq, pkt);
2532 av_free_packet(pkt);
2535 /* wait until the end */
2536 while (!is->abort_request) {
2542 /* disable interrupting */
2543 global_video_state = NULL;
2545 /* close each stream */
2546 if (is->audio_stream >= 0)
2547 stream_component_close(is, is->audio_stream);
2548 if (is->video_stream >= 0)
2549 stream_component_close(is, is->video_stream);
2550 if (is->subtitle_stream >= 0)
2551 stream_component_close(is, is->subtitle_stream);
2553 av_close_input_file(is->ic);
2554 is->ic = NULL; /* safety */
2556 avio_set_interrupt_cb(NULL);
2561 event.type = FF_QUIT_EVENT;
2562 event.user.data1 = is;
2563 SDL_PushEvent(&event);
2568 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2572 is = av_mallocz(sizeof(VideoState));
2575 av_strlcpy(is->filename, filename, sizeof(is->filename));
2576 is->iformat = iformat;
2580 /* start video display */
2581 is->pictq_mutex = SDL_CreateMutex();
2582 is->pictq_cond = SDL_CreateCond();
2584 is->subpq_mutex = SDL_CreateMutex();
2585 is->subpq_cond = SDL_CreateCond();
2587 is->av_sync_type = av_sync_type;
2588 is->parse_tid = SDL_CreateThread(decode_thread, is);
2589 if (!is->parse_tid) {
2596 static void stream_cycle_channel(VideoState *is, int codec_type)
2598 AVFormatContext *ic = is->ic;
2599 int start_index, stream_index;
2602 if (codec_type == AVMEDIA_TYPE_VIDEO)
2603 start_index = is->video_stream;
2604 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2605 start_index = is->audio_stream;
2607 start_index = is->subtitle_stream;
2608 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2610 stream_index = start_index;
2612 if (++stream_index >= is->ic->nb_streams)
2614 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2621 if (stream_index == start_index)
2623 st = ic->streams[stream_index];
2624 if (st->codec->codec_type == codec_type) {
2625 /* check that parameters are OK */
2626 switch(codec_type) {
2627 case AVMEDIA_TYPE_AUDIO:
2628 if (st->codec->sample_rate != 0 &&
2629 st->codec->channels != 0)
2632 case AVMEDIA_TYPE_VIDEO:
2633 case AVMEDIA_TYPE_SUBTITLE:
2641 stream_component_close(is, start_index);
2642 stream_component_open(is, stream_index);
2646 static void toggle_full_screen(void)
2648 is_full_screen = !is_full_screen;
2649 video_open(cur_stream);
2652 static void toggle_pause(void)
2655 stream_pause(cur_stream);
2659 static void step_to_next_frame(void)
2662 /* if the stream is paused unpause it, then step */
2663 if (cur_stream->paused)
2664 stream_pause(cur_stream);
2669 static void toggle_audio_display(void)
2672 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2673 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2674 fill_rectangle(screen,
2675 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2677 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2681 /* handle an event sent by the GUI */
2682 static void event_loop(void)
2685 double incr, pos, frac;
2689 SDL_WaitEvent(&event);
2690 switch(event.type) {
2692 if (exit_on_keydown) {
2696 switch(event.key.keysym.sym) {
2702 toggle_full_screen();
2708 case SDLK_s: //S: Step to next frame
2709 step_to_next_frame();
2713 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2717 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2721 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2724 toggle_audio_display();
2739 if (seek_by_bytes) {
2740 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2741 pos= cur_stream->video_current_pos;
2742 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2743 pos= cur_stream->audio_pkt.pos;
2745 pos = avio_tell(cur_stream->ic->pb);
2746 if (cur_stream->ic->bit_rate)
2747 incr *= cur_stream->ic->bit_rate / 8.0;
2751 stream_seek(cur_stream, pos, incr, 1);
2753 pos = get_master_clock(cur_stream);
2755 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2763 case SDL_MOUSEBUTTONDOWN:
2764 if (exit_on_mousedown) {
2768 case SDL_MOUSEMOTION:
2769 if(event.type ==SDL_MOUSEBUTTONDOWN){
2772 if(event.motion.state != SDL_PRESSED)
2777 if(seek_by_bytes || cur_stream->ic->duration<=0){
2778 uint64_t size= avio_size(cur_stream->ic->pb);
2779 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2783 int tns, thh, tmm, tss;
2784 tns = cur_stream->ic->duration/1000000LL;
2786 tmm = (tns%3600)/60;
2788 frac = x/cur_stream->width;
2793 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2794 hh, mm, ss, thh, tmm, tss);
2795 ts = frac*cur_stream->ic->duration;
2796 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2797 ts += cur_stream->ic->start_time;
2798 stream_seek(cur_stream, ts, 0, 0);
2802 case SDL_VIDEORESIZE:
2804 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2805 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2806 screen_width = cur_stream->width = event.resize.w;
2807 screen_height= cur_stream->height= event.resize.h;
2814 case FF_ALLOC_EVENT:
2815 video_open(event.user.data1);
2816 alloc_picture(event.user.data1);
2818 case FF_REFRESH_EVENT:
2819 video_refresh_timer(event.user.data1);
2820 cur_stream->refresh=0;
2828 static int opt_frame_size(const char *opt, const char *arg)
2830 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2831 fprintf(stderr, "Incorrect frame size\n");
2832 return AVERROR(EINVAL);
2834 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2835 fprintf(stderr, "Frame size must be a multiple of 2\n");
2836 return AVERROR(EINVAL);
2841 static int opt_width(const char *opt, const char *arg)
2843 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2847 static int opt_height(const char *opt, const char *arg)
2849 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2853 static int opt_format(const char *opt, const char *arg)
2855 file_iformat = av_find_input_format(arg);
2856 if (!file_iformat) {
2857 fprintf(stderr, "Unknown input format: %s\n", arg);
2858 return AVERROR(EINVAL);
2863 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2865 frame_pix_fmt = av_get_pix_fmt(arg);
2869 static int opt_sync(const char *opt, const char *arg)
2871 if (!strcmp(arg, "audio"))
2872 av_sync_type = AV_SYNC_AUDIO_MASTER;
2873 else if (!strcmp(arg, "video"))
2874 av_sync_type = AV_SYNC_VIDEO_MASTER;
2875 else if (!strcmp(arg, "ext"))
2876 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2878 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2884 static int opt_seek(const char *opt, const char *arg)
2886 start_time = parse_time_or_die(opt, arg, 1);
2890 static int opt_duration(const char *opt, const char *arg)
2892 duration = parse_time_or_die(opt, arg, 1);
2896 static int opt_debug(const char *opt, const char *arg)
2898 av_log_set_level(99);
2899 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2903 static int opt_vismv(const char *opt, const char *arg)
2905 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2909 static int opt_thread_count(const char *opt, const char *arg)
2911 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2913 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2918 static const OptionDef options[] = {
2919 #include "cmdutils_common_opts.h"
2920 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2921 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2922 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2923 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2924 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2925 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2926 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2927 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2928 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2929 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2930 { "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
2931 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2932 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2933 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2934 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2935 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2936 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2937 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2938 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2939 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2940 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2941 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2942 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2943 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2944 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2945 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2946 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2947 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2948 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2949 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2950 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2951 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
2952 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
2953 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
2954 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
2955 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
2956 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
2958 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
2960 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
2961 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2962 { "i", 0, {NULL}, "ffmpeg compatibility dummy option", ""},
2966 static void show_usage(void)
2968 printf("Simple media player\n");
2969 printf("usage: ffplay [options] input_file\n");
2973 static void show_help(void)
2975 av_log_set_callback(log_callback_help);
2977 show_help_options(options, "Main options:\n",
2979 show_help_options(options, "\nAdvanced options:\n",
2980 OPT_EXPERT, OPT_EXPERT);
2982 av_opt_show2(avcodec_opts[0], NULL,
2983 AV_OPT_FLAG_DECODING_PARAM, 0);
2985 av_opt_show2(avformat_opts, NULL,
2986 AV_OPT_FLAG_DECODING_PARAM, 0);
2987 #if !CONFIG_AVFILTER
2989 av_opt_show2(sws_opts, NULL,
2990 AV_OPT_FLAG_ENCODING_PARAM, 0);
2992 printf("\nWhile playing:\n"
2994 "f toggle full screen\n"
2996 "a cycle audio channel\n"
2997 "v cycle video channel\n"
2998 "t cycle subtitle channel\n"
2999 "w show audio waves\n"
3000 "s activate frame-step mode\n"
3001 "left/right seek backward/forward 10 seconds\n"
3002 "down/up seek backward/forward 1 minute\n"
3003 "mouse click seek to percentage in file corresponding to fraction of width\n"
3007 static void opt_input_file(const char *filename)
3009 if (input_filename) {
3010 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3011 filename, input_filename);
3014 if (!strcmp(filename, "-"))
3016 input_filename = filename;
3019 /* Called from the main */
3020 int main(int argc, char **argv)
3024 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3026 /* register all codecs, demux and protocols */
3027 avcodec_register_all();
3029 avdevice_register_all();
3032 avfilter_register_all();
3040 parse_options(argc, argv, options, opt_input_file);
3042 if (!input_filename) {
3044 fprintf(stderr, "An input file must be specified\n");
3045 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3049 if (display_disable) {
3052 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3053 #if !defined(__MINGW32__) && !defined(__APPLE__)
3054 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3056 if (SDL_Init (flags)) {
3057 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3061 if (!display_disable) {
3062 #if HAVE_SDL_VIDEO_SIZE
3063 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3064 fs_screen_width = vi->current_w;
3065 fs_screen_height = vi->current_h;
3069 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3070 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3071 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3073 av_init_packet(&flush_pkt);
3074 flush_pkt.data= "FLUSH";
3076 cur_stream = stream_open(input_filename, file_iformat);