2 * ffplay : Simple Media Player based on the FFmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/avstring.h"
27 #include "libavutil/colorspace.h"
28 #include "libavutil/pixdesc.h"
29 #include "libavutil/imgutils.h"
30 #include "libavutil/dict.h"
31 #include "libavutil/parseutils.h"
32 #include "libavutil/samplefmt.h"
33 #include "libavutil/avassert.h"
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/audioconvert.h"
38 #include "libavutil/opt.h"
39 #include "libavcodec/avfft.h"
42 # include "libavfilter/avcodec.h"
43 # include "libavfilter/avfilter.h"
44 # include "libavfilter/avfiltergraph.h"
45 # include "libavfilter/vsink_buffer.h"
49 #include <SDL_thread.h>
56 const char program_name[] = "ffplay";
57 const int program_birth_year = 2003;
59 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
60 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
63 /* SDL audio buffer size, in samples. Should be small to have precise
64 A/V sync as SDL does not have hardware buffer fullness info. */
65 #define SDL_AUDIO_BUFFER_SIZE 1024
67 /* no AV sync correction is done if below the AV sync threshold */
68 #define AV_SYNC_THRESHOLD 0.01
69 /* no AV correction is done if too big error */
70 #define AV_NOSYNC_THRESHOLD 10.0
72 #define FRAME_SKIP_FACTOR 0.05
74 /* maximum audio speed change to get correct sync */
75 #define SAMPLE_CORRECTION_PERCENT_MAX 10
77 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
78 #define AUDIO_DIFF_AVG_NB 20
80 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
81 #define SAMPLE_ARRAY_SIZE (2*65536)
83 static int sws_flags = SWS_BICUBIC;
85 typedef struct PacketQueue {
86 AVPacketList *first_pkt, *last_pkt;
94 #define VIDEO_PICTURE_QUEUE_SIZE 2
95 #define SUBPICTURE_QUEUE_SIZE 4
97 typedef struct VideoPicture {
98 double pts; ///<presentation time stamp for this picture
99 double target_clock; ///<av_gettime() time at which this should be displayed ideally
100 int64_t pos; ///<byte position in file
102 int width, height; /* source height & width */
104 enum PixelFormat pix_fmt;
107 AVFilterBufferRef *picref;
111 typedef struct SubPicture {
112 double pts; /* presentation time stamp for this picture */
117 AV_SYNC_AUDIO_MASTER, /* default choice */
118 AV_SYNC_VIDEO_MASTER,
119 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
122 typedef struct VideoState {
123 SDL_Thread *read_tid;
124 SDL_Thread *video_tid;
125 SDL_Thread *refresh_tid;
126 AVInputFormat *iformat;
135 int read_pause_return;
141 double external_clock; /* external clock base */
142 int64_t external_clock_time;
145 double audio_diff_cum; /* used for AV difference average computation */
146 double audio_diff_avg_coef;
147 double audio_diff_threshold;
148 int audio_diff_avg_count;
151 int audio_hw_buf_size;
152 /* samples output by the codec. we reserve more space for avsync
154 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
155 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
157 unsigned int audio_buf_size; /* in bytes */
158 int audio_buf_index; /* in bytes */
159 AVPacket audio_pkt_temp;
161 enum AVSampleFormat audio_src_fmt;
162 AVAudioConvert *reformat_ctx;
165 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
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;
204 int width, height, xleft, ytop;
207 AVFilterContext *out_video_filter; ///<the last filter in the video chain
211 float skip_frames_index;
215 static void show_help(void);
217 /* options specified by the user */
218 static AVInputFormat *file_iformat;
219 static const char *input_filename;
220 static const char *window_title;
221 static int fs_screen_width;
222 static int fs_screen_height;
223 static int screen_width = 0;
224 static int screen_height = 0;
225 static int frame_width = 0;
226 static int frame_height = 0;
227 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
228 static int audio_disable;
229 static int video_disable;
230 static int wanted_stream[AVMEDIA_TYPE_NB]={
231 [AVMEDIA_TYPE_AUDIO]=-1,
232 [AVMEDIA_TYPE_VIDEO]=-1,
233 [AVMEDIA_TYPE_SUBTITLE]=-1,
235 static int seek_by_bytes=-1;
236 static int display_disable;
237 static int show_status = 1;
238 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
239 static int64_t start_time = AV_NOPTS_VALUE;
240 static int64_t duration = AV_NOPTS_VALUE;
242 static int thread_count = 1;
243 static int workaround_bugs = 1;
245 static int genpts = 0;
246 static int lowres = 0;
247 static int idct = FF_IDCT_AUTO;
248 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
249 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
250 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
251 static int error_recognition = FF_ER_CAREFUL;
252 static int error_concealment = 3;
253 static int decoder_reorder_pts= -1;
255 static int exit_on_keydown;
256 static int exit_on_mousedown;
258 static int framedrop=-1;
259 static enum ShowMode show_mode = SHOW_MODE_NONE;
261 static int rdftspeed=20;
263 static char *vfilters = NULL;
266 /* current context */
267 static int is_full_screen;
268 static VideoState *cur_stream;
269 static int64_t audio_callback_time;
271 static AVPacket flush_pkt;
273 #define FF_ALLOC_EVENT (SDL_USEREVENT)
274 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
275 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
277 static SDL_Surface *screen;
279 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
283 /* duplicate the packet */
284 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
287 pkt1 = av_malloc(sizeof(AVPacketList));
294 SDL_LockMutex(q->mutex);
300 q->last_pkt->next = pkt1;
303 q->size += pkt1->pkt.size + sizeof(*pkt1);
304 /* XXX: should duplicate packet data in DV case */
305 SDL_CondSignal(q->cond);
307 SDL_UnlockMutex(q->mutex);
311 /* packet queue handling */
312 static void packet_queue_init(PacketQueue *q)
314 memset(q, 0, sizeof(PacketQueue));
315 q->mutex = SDL_CreateMutex();
316 q->cond = SDL_CreateCond();
317 packet_queue_put(q, &flush_pkt);
320 static void packet_queue_flush(PacketQueue *q)
322 AVPacketList *pkt, *pkt1;
324 SDL_LockMutex(q->mutex);
325 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
327 av_free_packet(&pkt->pkt);
334 SDL_UnlockMutex(q->mutex);
337 static void packet_queue_end(PacketQueue *q)
339 packet_queue_flush(q);
340 SDL_DestroyMutex(q->mutex);
341 SDL_DestroyCond(q->cond);
344 static void packet_queue_abort(PacketQueue *q)
346 SDL_LockMutex(q->mutex);
348 q->abort_request = 1;
350 SDL_CondSignal(q->cond);
352 SDL_UnlockMutex(q->mutex);
355 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
356 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
361 SDL_LockMutex(q->mutex);
364 if (q->abort_request) {
371 q->first_pkt = pkt1->next;
375 q->size -= pkt1->pkt.size + sizeof(*pkt1);
384 SDL_CondWait(q->cond, q->mutex);
387 SDL_UnlockMutex(q->mutex);
391 static inline void fill_rectangle(SDL_Surface *screen,
392 int x, int y, int w, int h, int color)
399 SDL_FillRect(screen, &rect, color);
402 #define ALPHA_BLEND(a, oldp, newp, s)\
403 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
405 #define RGBA_IN(r, g, b, a, s)\
407 unsigned int v = ((const uint32_t *)(s))[0];\
408 a = (v >> 24) & 0xff;\
409 r = (v >> 16) & 0xff;\
410 g = (v >> 8) & 0xff;\
414 #define YUVA_IN(y, u, v, a, s, pal)\
416 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
417 a = (val >> 24) & 0xff;\
418 y = (val >> 16) & 0xff;\
419 u = (val >> 8) & 0xff;\
423 #define YUVA_OUT(d, y, u, v, a)\
425 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
431 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
433 int wrap, wrap3, width2, skip2;
434 int y, u, v, a, u1, v1, a1, w, h;
435 uint8_t *lum, *cb, *cr;
438 int dstx, dsty, dstw, dsth;
440 dstw = av_clip(rect->w, 0, imgw);
441 dsth = av_clip(rect->h, 0, imgh);
442 dstx = av_clip(rect->x, 0, imgw - dstw);
443 dsty = av_clip(rect->y, 0, imgh - dsth);
444 lum = dst->data[0] + dsty * dst->linesize[0];
445 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
446 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
448 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
450 wrap = dst->linesize[0];
451 wrap3 = rect->pict.linesize[0];
452 p = rect->pict.data[0];
453 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
461 YUVA_IN(y, u, v, a, p, pal);
462 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
463 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
464 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
470 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
471 YUVA_IN(y, u, v, a, p, pal);
475 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
477 YUVA_IN(y, u, v, a, p + BPP, pal);
481 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
482 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
483 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
490 YUVA_IN(y, u, v, a, p, pal);
491 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
492 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
493 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
497 p += wrap3 - dstw * BPP;
498 lum += wrap - dstw - dstx;
499 cb += dst->linesize[1] - width2 - skip2;
500 cr += dst->linesize[2] - width2 - skip2;
502 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
508 YUVA_IN(y, u, v, a, p, pal);
512 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
515 YUVA_IN(y, u, v, a, p, pal);
519 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
520 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
521 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
527 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
528 YUVA_IN(y, u, v, a, p, pal);
532 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
534 YUVA_IN(y, u, v, a, p + BPP, pal);
538 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
542 YUVA_IN(y, u, v, a, p, pal);
546 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
548 YUVA_IN(y, u, v, a, p + BPP, pal);
552 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
554 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
555 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
559 p += -wrap3 + 2 * BPP;
563 YUVA_IN(y, u, v, a, p, pal);
567 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
570 YUVA_IN(y, u, v, a, p, pal);
574 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
575 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
576 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
582 p += wrap3 + (wrap3 - dstw * BPP);
583 lum += wrap + (wrap - dstw - dstx);
584 cb += dst->linesize[1] - width2 - skip2;
585 cr += dst->linesize[2] - width2 - skip2;
587 /* handle odd height */
594 YUVA_IN(y, u, v, a, p, pal);
595 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
596 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
597 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
603 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
604 YUVA_IN(y, u, v, a, p, pal);
608 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
610 YUVA_IN(y, u, v, a, p + BPP, pal);
614 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
615 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
616 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
623 YUVA_IN(y, u, v, a, p, pal);
624 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
625 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
626 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
631 static void free_subpicture(SubPicture *sp)
633 avsubtitle_free(&sp->sub);
636 static void video_image_display(VideoState *is)
642 int width, height, x, y;
646 vp = &is->pictq[is->pictq_rindex];
649 if (vp->picref->video->sample_aspect_ratio.num == 0)
652 aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio);
655 /* XXX: use variable in the frame */
656 if (is->video_st->sample_aspect_ratio.num)
657 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
658 else if (is->video_st->codec->sample_aspect_ratio.num)
659 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
663 if (aspect_ratio <= 0.0)
665 aspect_ratio *= (float)vp->width / (float)vp->height;
667 if (is->subtitle_st) {
668 if (is->subpq_size > 0) {
669 sp = &is->subpq[is->subpq_rindex];
671 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
672 SDL_LockYUVOverlay (vp->bmp);
674 pict.data[0] = vp->bmp->pixels[0];
675 pict.data[1] = vp->bmp->pixels[2];
676 pict.data[2] = vp->bmp->pixels[1];
678 pict.linesize[0] = vp->bmp->pitches[0];
679 pict.linesize[1] = vp->bmp->pitches[2];
680 pict.linesize[2] = vp->bmp->pitches[1];
682 for (i = 0; i < sp->sub.num_rects; i++)
683 blend_subrect(&pict, sp->sub.rects[i],
684 vp->bmp->w, vp->bmp->h);
686 SDL_UnlockYUVOverlay (vp->bmp);
692 /* XXX: we suppose the screen has a 1.0 pixel ratio */
694 width = ((int)rint(height * aspect_ratio)) & ~1;
695 if (width > is->width) {
697 height = ((int)rint(width / aspect_ratio)) & ~1;
699 x = (is->width - width) / 2;
700 y = (is->height - height) / 2;
701 is->no_background = 0;
702 rect.x = is->xleft + x;
703 rect.y = is->ytop + y;
704 rect.w = FFMAX(width, 1);
705 rect.h = FFMAX(height, 1);
706 SDL_DisplayYUVOverlay(vp->bmp, &rect);
710 /* get the current audio output buffer size, in samples. With SDL, we
711 cannot have a precise information */
712 static int audio_write_get_buf_size(VideoState *is)
714 return is->audio_buf_size - is->audio_buf_index;
717 static inline int compute_mod(int a, int b)
719 return a < 0 ? a%b + b : a%b;
722 static void video_audio_display(VideoState *s)
724 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
725 int ch, channels, h, h2, bgcolor, fgcolor;
727 int rdft_bits, nb_freq;
729 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
731 nb_freq= 1<<(rdft_bits-1);
733 /* compute display index : center on currently output samples */
734 channels = s->audio_st->codec->channels;
735 nb_display_channels = channels;
737 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
739 delay = audio_write_get_buf_size(s);
742 /* to be more precise, we take into account the time spent since
743 the last buffer computation */
744 if (audio_callback_time) {
745 time_diff = av_gettime() - audio_callback_time;
746 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
749 delay += 2*data_used;
750 if (delay < data_used)
753 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
754 if (s->show_mode == SHOW_MODE_WAVES) {
756 for(i=0; i<1000; i+=channels){
757 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
758 int a= s->sample_array[idx];
759 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
760 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
761 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
763 if(h<score && (b^c)<0){
770 s->last_i_start = i_start;
772 i_start = s->last_i_start;
775 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
776 if (s->show_mode == SHOW_MODE_WAVES) {
777 fill_rectangle(screen,
778 s->xleft, s->ytop, s->width, s->height,
781 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
783 /* total height for one channel */
784 h = s->height / nb_display_channels;
785 /* graph height / 2 */
787 for(ch = 0;ch < nb_display_channels; ch++) {
789 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
790 for(x = 0; x < s->width; x++) {
791 y = (s->sample_array[i] * h2) >> 15;
798 fill_rectangle(screen,
799 s->xleft + x, ys, 1, y,
802 if (i >= SAMPLE_ARRAY_SIZE)
803 i -= SAMPLE_ARRAY_SIZE;
807 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
809 for(ch = 1;ch < nb_display_channels; ch++) {
810 y = s->ytop + ch * h;
811 fill_rectangle(screen,
812 s->xleft, y, s->width, 1,
815 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
817 nb_display_channels= FFMIN(nb_display_channels, 2);
818 if(rdft_bits != s->rdft_bits){
819 av_rdft_end(s->rdft);
820 av_free(s->rdft_data);
821 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
822 s->rdft_bits= rdft_bits;
823 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
827 for(ch = 0;ch < nb_display_channels; ch++) {
828 data[ch] = s->rdft_data + 2*nb_freq*ch;
830 for(x = 0; x < 2*nb_freq; x++) {
831 double w= (x-nb_freq)*(1.0/nb_freq);
832 data[ch][x]= s->sample_array[i]*(1.0-w*w);
834 if (i >= SAMPLE_ARRAY_SIZE)
835 i -= SAMPLE_ARRAY_SIZE;
837 av_rdft_calc(s->rdft, data[ch]);
839 //least efficient way to do this, we should of course directly access it but its more than fast enough
840 for(y=0; y<s->height; y++){
841 double w= 1/sqrt(nb_freq);
842 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]));
843 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
844 + data[1][2*y+1]*data[1][2*y+1])) : a;
847 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
849 fill_rectangle(screen,
850 s->xpos, s->height-y, 1, 1,
854 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
856 if(s->xpos >= s->width)
861 static void stream_close(VideoState *is)
865 /* XXX: use a special url_shutdown call to abort parse cleanly */
866 is->abort_request = 1;
867 SDL_WaitThread(is->read_tid, NULL);
868 SDL_WaitThread(is->refresh_tid, NULL);
870 /* free all pictures */
871 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
875 avfilter_unref_buffer(vp->picref);
880 SDL_FreeYUVOverlay(vp->bmp);
884 SDL_DestroyMutex(is->pictq_mutex);
885 SDL_DestroyCond(is->pictq_cond);
886 SDL_DestroyMutex(is->subpq_mutex);
887 SDL_DestroyCond(is->subpq_cond);
889 if (is->img_convert_ctx)
890 sws_freeContext(is->img_convert_ctx);
895 static void do_exit(void)
898 stream_close(cur_stream);
908 av_log(NULL, AV_LOG_QUIET, "%s", "");
912 static int video_open(VideoState *is){
913 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
916 if(is_full_screen) flags |= SDL_FULLSCREEN;
917 else flags |= SDL_RESIZABLE;
919 if (is_full_screen && fs_screen_width) {
921 h = fs_screen_height;
922 } else if(!is_full_screen && screen_width){
926 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
927 w = is->out_video_filter->inputs[0]->w;
928 h = is->out_video_filter->inputs[0]->h;
930 }else if (is->video_st && is->video_st->codec->width){
931 w = is->video_st->codec->width;
932 h = is->video_st->codec->height;
938 if(screen && is->width == screen->w && screen->w == w
939 && is->height== screen->h && screen->h == h)
943 screen = SDL_SetVideoMode(w, h, 0, flags);
945 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
946 screen = SDL_SetVideoMode(w, h, 24, flags);
949 fprintf(stderr, "SDL: could not set video mode - exiting\n");
953 window_title = input_filename;
954 SDL_WM_SetCaption(window_title, window_title);
956 is->width = screen->w;
957 is->height = screen->h;
962 /* display the current picture, if any */
963 static void video_display(VideoState *is)
966 video_open(cur_stream);
967 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
968 video_audio_display(is);
969 else if (is->video_st)
970 video_image_display(is);
973 static int refresh_thread(void *opaque)
975 VideoState *is= opaque;
976 while(!is->abort_request){
978 event.type = FF_REFRESH_EVENT;
979 event.user.data1 = opaque;
982 SDL_PushEvent(&event);
984 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
985 usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
990 /* get the current audio clock value */
991 static double get_audio_clock(VideoState *is)
994 int hw_buf_size, bytes_per_sec;
995 pts = is->audio_clock;
996 hw_buf_size = audio_write_get_buf_size(is);
999 bytes_per_sec = is->audio_st->codec->sample_rate *
1000 2 * is->audio_st->codec->channels;
1003 pts -= (double)hw_buf_size / bytes_per_sec;
1007 /* get the current video clock value */
1008 static double get_video_clock(VideoState *is)
1011 return is->video_current_pts;
1013 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1017 /* get the current external clock value */
1018 static double get_external_clock(VideoState *is)
1022 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1025 /* get the current master clock value */
1026 static double get_master_clock(VideoState *is)
1030 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1032 val = get_video_clock(is);
1034 val = get_audio_clock(is);
1035 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1037 val = get_audio_clock(is);
1039 val = get_video_clock(is);
1041 val = get_external_clock(is);
1046 /* seek in the stream */
1047 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1049 if (!is->seek_req) {
1052 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1054 is->seek_flags |= AVSEEK_FLAG_BYTE;
1059 /* pause or resume the video */
1060 static void stream_toggle_pause(VideoState *is)
1063 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1064 if(is->read_pause_return != AVERROR(ENOSYS)){
1065 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1067 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1069 is->paused = !is->paused;
1072 static double compute_target_time(double frame_current_pts, VideoState *is)
1074 double delay, sync_threshold, diff;
1076 /* compute nominal delay */
1077 delay = frame_current_pts - is->frame_last_pts;
1078 if (delay <= 0 || delay >= 10.0) {
1079 /* if incorrect delay, use previous one */
1080 delay = is->frame_last_delay;
1082 is->frame_last_delay = delay;
1084 is->frame_last_pts = frame_current_pts;
1086 /* update delay to follow master synchronisation source */
1087 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1088 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1089 /* if video is slave, we try to correct big delays by
1090 duplicating or deleting a frame */
1091 diff = get_video_clock(is) - get_master_clock(is);
1093 /* skip or repeat frame. We take into account the
1094 delay to compute the threshold. I still don't know
1095 if it is the best guess */
1096 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1097 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1098 if (diff <= -sync_threshold)
1100 else if (diff >= sync_threshold)
1104 is->frame_timer += delay;
1106 av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1107 delay, frame_current_pts, -diff);
1109 return is->frame_timer;
1112 /* called to display each frame */
1113 static void video_refresh(void *opaque)
1115 VideoState *is = opaque;
1118 SubPicture *sp, *sp2;
1122 if (is->pictq_size == 0) {
1123 //nothing to do, no picture to display in the que
1125 double time= av_gettime()/1000000.0;
1127 /* dequeue the picture */
1128 vp = &is->pictq[is->pictq_rindex];
1130 if(time < vp->target_clock)
1132 /* update current video pts */
1133 is->video_current_pts = vp->pts;
1134 is->video_current_pts_drift = is->video_current_pts - time;
1135 is->video_current_pos = vp->pos;
1136 if(is->pictq_size > 1){
1137 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1138 assert(nextvp->target_clock >= vp->target_clock);
1139 next_target= nextvp->target_clock;
1141 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1143 if((framedrop>0 || (framedrop && is->audio_st)) && time > next_target){
1144 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1145 if(is->pictq_size > 1 || time > next_target + 0.5){
1146 /* update queue size and signal for next picture */
1147 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1148 is->pictq_rindex = 0;
1150 SDL_LockMutex(is->pictq_mutex);
1152 SDL_CondSignal(is->pictq_cond);
1153 SDL_UnlockMutex(is->pictq_mutex);
1158 if(is->subtitle_st) {
1159 if (is->subtitle_stream_changed) {
1160 SDL_LockMutex(is->subpq_mutex);
1162 while (is->subpq_size) {
1163 free_subpicture(&is->subpq[is->subpq_rindex]);
1165 /* update queue size and signal for next picture */
1166 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1167 is->subpq_rindex = 0;
1171 is->subtitle_stream_changed = 0;
1173 SDL_CondSignal(is->subpq_cond);
1174 SDL_UnlockMutex(is->subpq_mutex);
1176 if (is->subpq_size > 0) {
1177 sp = &is->subpq[is->subpq_rindex];
1179 if (is->subpq_size > 1)
1180 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1184 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1185 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1187 free_subpicture(sp);
1189 /* update queue size and signal for next picture */
1190 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1191 is->subpq_rindex = 0;
1193 SDL_LockMutex(is->subpq_mutex);
1195 SDL_CondSignal(is->subpq_cond);
1196 SDL_UnlockMutex(is->subpq_mutex);
1202 /* display picture */
1203 if (!display_disable)
1206 /* update queue size and signal for next picture */
1207 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1208 is->pictq_rindex = 0;
1210 SDL_LockMutex(is->pictq_mutex);
1212 SDL_CondSignal(is->pictq_cond);
1213 SDL_UnlockMutex(is->pictq_mutex);
1215 } else if (is->audio_st) {
1216 /* draw the next audio frame */
1218 /* if only audio stream, then display the audio bars (better
1219 than nothing, just to test the implementation */
1221 /* display picture */
1222 if (!display_disable)
1226 static int64_t last_time;
1228 int aqsize, vqsize, sqsize;
1231 cur_time = av_gettime();
1232 if (!last_time || (cur_time - last_time) >= 30000) {
1237 aqsize = is->audioq.size;
1239 vqsize = is->videoq.size;
1240 if (is->subtitle_st)
1241 sqsize = is->subtitleq.size;
1243 if (is->audio_st && is->video_st)
1244 av_diff = get_audio_clock(is) - get_video_clock(is);
1245 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1246 get_master_clock(is),
1248 FFMAX(is->skip_frames-1, 0),
1252 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1253 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1255 last_time = cur_time;
1260 /* allocate a picture (needs to do that in main thread to avoid
1261 potential locking problems */
1262 static void alloc_picture(void *opaque)
1264 VideoState *is = opaque;
1267 vp = &is->pictq[is->pictq_windex];
1270 SDL_FreeYUVOverlay(vp->bmp);
1274 avfilter_unref_buffer(vp->picref);
1277 vp->width = is->out_video_filter->inputs[0]->w;
1278 vp->height = is->out_video_filter->inputs[0]->h;
1279 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1281 vp->width = is->video_st->codec->width;
1282 vp->height = is->video_st->codec->height;
1283 vp->pix_fmt = is->video_st->codec->pix_fmt;
1286 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1289 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1290 /* SDL allocates a buffer smaller than requested if the video
1291 * overlay hardware is unable to support the requested size. */
1292 fprintf(stderr, "Error: the video system does not support an image\n"
1293 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1294 "to reduce the image size.\n", vp->width, vp->height );
1298 SDL_LockMutex(is->pictq_mutex);
1300 SDL_CondSignal(is->pictq_cond);
1301 SDL_UnlockMutex(is->pictq_mutex);
1304 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1307 double frame_delay, pts = pts1;
1309 /* compute the exact PTS for the picture if it is omitted in the stream
1310 * pts1 is the dts of the pkt / pts of the frame */
1312 /* update video clock with pts, if present */
1313 is->video_clock = pts;
1315 pts = is->video_clock;
1317 /* update video clock for next frame */
1318 frame_delay = av_q2d(is->video_st->codec->time_base);
1319 /* for MPEG2, the frame can be repeated, so we update the
1320 clock accordingly */
1321 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1322 is->video_clock += frame_delay;
1324 #if defined(DEBUG_SYNC) && 0
1325 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1326 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1329 /* wait until we have space to put a new picture */
1330 SDL_LockMutex(is->pictq_mutex);
1332 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1333 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1335 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1336 !is->videoq.abort_request) {
1337 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1339 SDL_UnlockMutex(is->pictq_mutex);
1341 if (is->videoq.abort_request)
1344 vp = &is->pictq[is->pictq_windex];
1346 /* alloc or resize hardware picture buffer */
1349 vp->width != is->out_video_filter->inputs[0]->w ||
1350 vp->height != is->out_video_filter->inputs[0]->h) {
1352 vp->width != is->video_st->codec->width ||
1353 vp->height != is->video_st->codec->height) {
1359 /* the allocation must be done in the main thread to avoid
1361 event.type = FF_ALLOC_EVENT;
1362 event.user.data1 = is;
1363 SDL_PushEvent(&event);
1365 /* wait until the picture is allocated */
1366 SDL_LockMutex(is->pictq_mutex);
1367 while (!vp->allocated && !is->videoq.abort_request) {
1368 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1370 SDL_UnlockMutex(is->pictq_mutex);
1372 if (is->videoq.abort_request)
1376 /* if the frame is not skipped, then display it */
1381 avfilter_unref_buffer(vp->picref);
1382 vp->picref = src_frame->opaque;
1385 /* get a pointer on the bitmap */
1386 SDL_LockYUVOverlay (vp->bmp);
1388 memset(&pict,0,sizeof(AVPicture));
1389 pict.data[0] = vp->bmp->pixels[0];
1390 pict.data[1] = vp->bmp->pixels[2];
1391 pict.data[2] = vp->bmp->pixels[1];
1393 pict.linesize[0] = vp->bmp->pitches[0];
1394 pict.linesize[1] = vp->bmp->pitches[2];
1395 pict.linesize[2] = vp->bmp->pitches[1];
1398 //FIXME use direct rendering
1399 av_picture_copy(&pict, (AVPicture *)src_frame,
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 PIX_FMT_YUV420P, 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);
1431 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1433 int len1 av_unused, got_picture, i;
1435 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1438 if (pkt->data == flush_pkt.data) {
1439 avcodec_flush_buffers(is->video_st->codec);
1441 SDL_LockMutex(is->pictq_mutex);
1442 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1443 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1444 is->pictq[i].target_clock= 0;
1446 while (is->pictq_size && !is->videoq.abort_request) {
1447 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1449 is->video_current_pos = -1;
1450 SDL_UnlockMutex(is->pictq_mutex);
1452 is->frame_last_pts = AV_NOPTS_VALUE;
1453 is->frame_last_delay = 0;
1454 is->frame_timer = (double)av_gettime() / 1000000.0;
1455 is->skip_frames = 1;
1456 is->skip_frames_index = 0;
1460 len1 = avcodec_decode_video2(is->video_st->codec,
1461 frame, &got_picture,
1465 if (decoder_reorder_pts == -1) {
1466 *pts = frame->best_effort_timestamp;
1467 } else if (decoder_reorder_pts) {
1468 *pts = frame->pkt_pts;
1470 *pts = frame->pkt_dts;
1473 if (*pts == AV_NOPTS_VALUE) {
1477 is->skip_frames_index += 1;
1478 if(is->skip_frames_index >= is->skip_frames){
1479 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1494 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1496 AVFilterContext *ctx = codec->opaque;
1497 AVFilterBufferRef *ref;
1498 int perms = AV_PERM_WRITE;
1499 int i, w, h, stride[4];
1503 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1505 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1506 perms |= AV_PERM_NEG_LINESIZES;
1508 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1509 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1510 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1511 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1513 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1518 if(av_image_check_size(w, h, 0, codec))
1521 avcodec_align_dimensions2(codec, &w, &h, stride);
1522 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1526 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1529 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
1530 ref->video->w = codec->width;
1531 ref->video->h = codec->height;
1532 for(i = 0; i < 4; i ++) {
1533 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1534 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1537 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1539 pic->data[i] = ref->data[i];
1540 pic->linesize[i] = ref->linesize[i];
1544 pic->type = FF_BUFFER_TYPE_USER;
1545 pic->reordered_opaque = codec->reordered_opaque;
1546 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1547 else pic->pkt_pts = AV_NOPTS_VALUE;
1551 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1553 memset(pic->data, 0, sizeof(pic->data));
1554 avfilter_unref_buffer(pic->opaque);
1557 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1559 AVFilterBufferRef *ref = pic->opaque;
1561 if (pic->data[0] == NULL) {
1562 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1563 return codec->get_buffer(codec, pic);
1566 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1567 (codec->pix_fmt != ref->format)) {
1568 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1572 pic->reordered_opaque = codec->reordered_opaque;
1573 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1574 else pic->pkt_pts = AV_NOPTS_VALUE;
1578 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1580 FilterPriv *priv = ctx->priv;
1581 AVCodecContext *codec;
1582 if(!opaque) return -1;
1585 codec = priv->is->video_st->codec;
1586 codec->opaque = ctx;
1587 if((codec->codec->capabilities & CODEC_CAP_DR1)
1589 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1591 codec->get_buffer = input_get_buffer;
1592 codec->release_buffer = input_release_buffer;
1593 codec->reget_buffer = input_reget_buffer;
1594 codec->thread_safe_callbacks = 1;
1597 priv->frame = avcodec_alloc_frame();
1602 static void input_uninit(AVFilterContext *ctx)
1604 FilterPriv *priv = ctx->priv;
1605 av_free(priv->frame);
1608 static int input_request_frame(AVFilterLink *link)
1610 FilterPriv *priv = link->src->priv;
1611 AVFilterBufferRef *picref;
1616 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1617 av_free_packet(&pkt);
1621 if(priv->use_dr1 && priv->frame->opaque) {
1622 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1624 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1625 av_image_copy(picref->data, picref->linesize,
1626 priv->frame->data, priv->frame->linesize,
1627 picref->format, link->w, link->h);
1629 av_free_packet(&pkt);
1631 avfilter_copy_frame_props(picref, priv->frame);
1634 avfilter_start_frame(link, picref);
1635 avfilter_draw_slice(link, 0, link->h, 1);
1636 avfilter_end_frame(link);
1641 static int input_query_formats(AVFilterContext *ctx)
1643 FilterPriv *priv = ctx->priv;
1644 enum PixelFormat pix_fmts[] = {
1645 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1648 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
1652 static int input_config_props(AVFilterLink *link)
1654 FilterPriv *priv = link->src->priv;
1655 AVCodecContext *c = priv->is->video_st->codec;
1658 link->h = c->height;
1659 link->time_base = priv->is->video_st->time_base;
1664 static AVFilter input_filter =
1666 .name = "ffplay_input",
1668 .priv_size = sizeof(FilterPriv),
1671 .uninit = input_uninit,
1673 .query_formats = input_query_formats,
1675 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1676 .outputs = (AVFilterPad[]) {{ .name = "default",
1677 .type = AVMEDIA_TYPE_VIDEO,
1678 .request_frame = input_request_frame,
1679 .config_props = input_config_props, },
1683 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1685 char sws_flags_str[128];
1687 enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1688 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1689 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1690 graph->scale_sws_opts = av_strdup(sws_flags_str);
1692 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1693 NULL, is, graph)) < 0)
1695 if ((ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
1696 NULL, pix_fmts, graph)) < 0)
1700 AVFilterInOut *outputs = avfilter_inout_alloc();
1701 AVFilterInOut *inputs = avfilter_inout_alloc();
1703 outputs->name = av_strdup("in");
1704 outputs->filter_ctx = filt_src;
1705 outputs->pad_idx = 0;
1706 outputs->next = NULL;
1708 inputs->name = av_strdup("out");
1709 inputs->filter_ctx = filt_out;
1710 inputs->pad_idx = 0;
1711 inputs->next = NULL;
1713 if ((ret = avfilter_graph_parse(graph, vfilters, &inputs, &outputs, NULL)) < 0)
1715 av_freep(&vfilters);
1717 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1721 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1724 is->out_video_filter = filt_out;
1729 #endif /* CONFIG_AVFILTER */
1731 static int video_thread(void *arg)
1733 VideoState *is = arg;
1734 AVFrame *frame= avcodec_alloc_frame();
1735 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1740 AVFilterGraph *graph = avfilter_graph_alloc();
1741 AVFilterContext *filt_out = NULL;
1743 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1745 filt_out = is->out_video_filter;
1749 #if !CONFIG_AVFILTER
1752 AVFilterBufferRef *picref;
1753 AVRational tb = filt_out->inputs[0]->time_base;
1755 while (is->paused && !is->videoq.abort_request)
1758 ret = av_vsink_buffer_get_video_buffer_ref(filt_out, &picref, 0);
1760 avfilter_fill_frame_from_video_buffer_ref(frame, picref);
1761 pts_int = picref->pts;
1763 frame->opaque = picref;
1766 if (av_cmp_q(tb, is->video_st->time_base)) {
1767 av_unused int64_t pts1 = pts_int;
1768 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1769 av_dlog(NULL, "video_thread(): "
1770 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1771 tb.num, tb.den, pts1,
1772 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1775 ret = get_video_frame(is, frame, &pts_int, &pkt);
1777 av_free_packet(&pkt);
1780 if (ret < 0) goto the_end;
1785 pts = pts_int*av_q2d(is->video_st->time_base);
1787 ret = queue_picture(is, frame, pts, pos);
1794 stream_toggle_pause(cur_stream);
1798 avfilter_graph_free(&graph);
1804 static int subtitle_thread(void *arg)
1806 VideoState *is = arg;
1808 AVPacket pkt1, *pkt = &pkt1;
1809 int len1 av_unused, got_subtitle;
1812 int r, g, b, y, u, v, a;
1815 while (is->paused && !is->subtitleq.abort_request) {
1818 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1821 if(pkt->data == flush_pkt.data){
1822 avcodec_flush_buffers(is->subtitle_st->codec);
1825 SDL_LockMutex(is->subpq_mutex);
1826 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1827 !is->subtitleq.abort_request) {
1828 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1830 SDL_UnlockMutex(is->subpq_mutex);
1832 if (is->subtitleq.abort_request)
1835 sp = &is->subpq[is->subpq_windex];
1837 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1838 this packet, if any */
1840 if (pkt->pts != AV_NOPTS_VALUE)
1841 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1843 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1844 &sp->sub, &got_subtitle,
1846 if (got_subtitle && sp->sub.format == 0) {
1849 for (i = 0; i < sp->sub.num_rects; i++)
1851 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1853 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1854 y = RGB_TO_Y_CCIR(r, g, b);
1855 u = RGB_TO_U_CCIR(r, g, b, 0);
1856 v = RGB_TO_V_CCIR(r, g, b, 0);
1857 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1861 /* now we can update the picture count */
1862 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1863 is->subpq_windex = 0;
1864 SDL_LockMutex(is->subpq_mutex);
1866 SDL_UnlockMutex(is->subpq_mutex);
1868 av_free_packet(pkt);
1874 /* copy samples for viewing in editor window */
1875 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1879 size = samples_size / sizeof(short);
1881 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1884 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1886 is->sample_array_index += len;
1887 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1888 is->sample_array_index = 0;
1893 /* return the new audio buffer size (samples can be added or deleted
1894 to get better sync if video or external master clock) */
1895 static int synchronize_audio(VideoState *is, short *samples,
1896 int samples_size1, double pts)
1898 int n, samples_size;
1901 n = 2 * is->audio_st->codec->channels;
1902 samples_size = samples_size1;
1904 /* if not master, then we try to remove or add samples to correct the clock */
1905 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1906 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1907 double diff, avg_diff;
1908 int wanted_size, min_size, max_size, nb_samples;
1910 ref_clock = get_master_clock(is);
1911 diff = get_audio_clock(is) - ref_clock;
1913 if (diff < AV_NOSYNC_THRESHOLD) {
1914 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1915 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1916 /* not enough measures to have a correct estimate */
1917 is->audio_diff_avg_count++;
1919 /* estimate the A-V difference */
1920 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1922 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1923 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1924 nb_samples = samples_size / n;
1926 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1927 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1928 if (wanted_size < min_size)
1929 wanted_size = min_size;
1930 else if (wanted_size > max_size)
1931 wanted_size = max_size;
1933 /* add or remove samples to correction the synchro */
1934 if (wanted_size < samples_size) {
1935 /* remove samples */
1936 samples_size = wanted_size;
1937 } else if (wanted_size > samples_size) {
1938 uint8_t *samples_end, *q;
1942 nb = (samples_size - wanted_size);
1943 samples_end = (uint8_t *)samples + samples_size - n;
1944 q = samples_end + n;
1946 memcpy(q, samples_end, n);
1950 samples_size = wanted_size;
1954 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1955 diff, avg_diff, samples_size - samples_size1,
1956 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1960 /* too big difference : may be initial PTS errors, so
1962 is->audio_diff_avg_count = 0;
1963 is->audio_diff_cum = 0;
1967 return samples_size;
1970 /* decode one audio frame and returns its uncompressed size */
1971 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1973 AVPacket *pkt_temp = &is->audio_pkt_temp;
1974 AVPacket *pkt = &is->audio_pkt;
1975 AVCodecContext *dec= is->audio_st->codec;
1976 int n, len1, data_size;
1980 /* NOTE: the audio packet can contain several frames */
1981 while (pkt_temp->size > 0) {
1982 data_size = sizeof(is->audio_buf1);
1983 len1 = avcodec_decode_audio3(dec,
1984 (int16_t *)is->audio_buf1, &data_size,
1987 /* if error, we skip the frame */
1992 pkt_temp->data += len1;
1993 pkt_temp->size -= len1;
1997 if (dec->sample_fmt != is->audio_src_fmt) {
1998 if (is->reformat_ctx)
1999 av_audio_convert_free(is->reformat_ctx);
2000 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2001 dec->sample_fmt, 1, NULL, 0);
2002 if (!is->reformat_ctx) {
2003 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2004 av_get_sample_fmt_name(dec->sample_fmt),
2005 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2008 is->audio_src_fmt= dec->sample_fmt;
2011 if (is->reformat_ctx) {
2012 const void *ibuf[6]= {is->audio_buf1};
2013 void *obuf[6]= {is->audio_buf2};
2014 int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)};
2015 int ostride[6]= {2};
2016 int len= data_size/istride[0];
2017 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2018 printf("av_audio_convert() failed\n");
2021 is->audio_buf= is->audio_buf2;
2022 /* FIXME: existing code assume that data_size equals framesize*channels*2
2023 remove this legacy cruft */
2026 is->audio_buf= is->audio_buf1;
2029 /* if no pts, then compute it */
2030 pts = is->audio_clock;
2032 n = 2 * dec->channels;
2033 is->audio_clock += (double)data_size /
2034 (double)(n * dec->sample_rate);
2037 static double last_clock;
2038 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2039 is->audio_clock - last_clock,
2040 is->audio_clock, pts);
2041 last_clock = is->audio_clock;
2047 /* free the current packet */
2049 av_free_packet(pkt);
2051 if (is->paused || is->audioq.abort_request) {
2055 /* read next packet */
2056 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2058 if(pkt->data == flush_pkt.data){
2059 avcodec_flush_buffers(dec);
2063 pkt_temp->data = pkt->data;
2064 pkt_temp->size = pkt->size;
2066 /* if update the audio clock with the pts */
2067 if (pkt->pts != AV_NOPTS_VALUE) {
2068 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2073 /* prepare a new audio buffer */
2074 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2076 VideoState *is = opaque;
2077 int audio_size, len1;
2080 audio_callback_time = av_gettime();
2083 if (is->audio_buf_index >= is->audio_buf_size) {
2084 audio_size = audio_decode_frame(is, &pts);
2085 if (audio_size < 0) {
2086 /* if error, just output silence */
2087 is->audio_buf = is->audio_buf1;
2088 is->audio_buf_size = 1024;
2089 memset(is->audio_buf, 0, is->audio_buf_size);
2091 if (is->show_mode != SHOW_MODE_VIDEO)
2092 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2093 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2095 is->audio_buf_size = audio_size;
2097 is->audio_buf_index = 0;
2099 len1 = is->audio_buf_size - is->audio_buf_index;
2102 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2105 is->audio_buf_index += len1;
2109 /* open a given stream. Return 0 if OK */
2110 static int stream_component_open(VideoState *is, int stream_index)
2112 AVFormatContext *ic = is->ic;
2113 AVCodecContext *avctx;
2115 SDL_AudioSpec wanted_spec, spec;
2117 if (stream_index < 0 || stream_index >= ic->nb_streams)
2119 avctx = ic->streams[stream_index]->codec;
2121 /* prepare audio output */
2122 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2123 if (avctx->channels > 0) {
2124 avctx->request_channels = FFMIN(2, avctx->channels);
2126 avctx->request_channels = 2;
2130 codec = avcodec_find_decoder(avctx->codec_id);
2134 avctx->workaround_bugs = workaround_bugs;
2135 avctx->lowres = lowres;
2136 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2137 avctx->idct_algo= idct;
2138 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2139 avctx->skip_frame= skip_frame;
2140 avctx->skip_idct= skip_idct;
2141 avctx->skip_loop_filter= skip_loop_filter;
2142 avctx->error_recognition= error_recognition;
2143 avctx->error_concealment= error_concealment;
2144 avctx->thread_count= thread_count;
2146 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2148 if(codec->capabilities & CODEC_CAP_DR1)
2149 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2151 if (avcodec_open(avctx, codec) < 0)
2154 /* prepare audio output */
2155 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2156 if(avctx->sample_rate <= 0 || avctx->channels <= 0){
2157 fprintf(stderr, "Invalid sample rate or channel count\n");
2160 wanted_spec.freq = avctx->sample_rate;
2161 wanted_spec.format = AUDIO_S16SYS;
2162 wanted_spec.channels = avctx->channels;
2163 wanted_spec.silence = 0;
2164 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2165 wanted_spec.callback = sdl_audio_callback;
2166 wanted_spec.userdata = is;
2167 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2168 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2171 is->audio_hw_buf_size = spec.size;
2172 is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2175 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2176 switch(avctx->codec_type) {
2177 case AVMEDIA_TYPE_AUDIO:
2178 is->audio_stream = stream_index;
2179 is->audio_st = ic->streams[stream_index];
2180 is->audio_buf_size = 0;
2181 is->audio_buf_index = 0;
2183 /* init averaging filter */
2184 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2185 is->audio_diff_avg_count = 0;
2186 /* since we do not have a precise anough audio fifo fullness,
2187 we correct audio sync only if larger than this threshold */
2188 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2190 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2191 packet_queue_init(&is->audioq);
2194 case AVMEDIA_TYPE_VIDEO:
2195 is->video_stream = stream_index;
2196 is->video_st = ic->streams[stream_index];
2198 packet_queue_init(&is->videoq);
2199 is->video_tid = SDL_CreateThread(video_thread, is);
2201 case AVMEDIA_TYPE_SUBTITLE:
2202 is->subtitle_stream = stream_index;
2203 is->subtitle_st = ic->streams[stream_index];
2204 packet_queue_init(&is->subtitleq);
2206 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2214 static void stream_component_close(VideoState *is, int stream_index)
2216 AVFormatContext *ic = is->ic;
2217 AVCodecContext *avctx;
2219 if (stream_index < 0 || stream_index >= ic->nb_streams)
2221 avctx = ic->streams[stream_index]->codec;
2223 switch(avctx->codec_type) {
2224 case AVMEDIA_TYPE_AUDIO:
2225 packet_queue_abort(&is->audioq);
2229 packet_queue_end(&is->audioq);
2230 if (is->reformat_ctx)
2231 av_audio_convert_free(is->reformat_ctx);
2232 is->reformat_ctx = NULL;
2234 case AVMEDIA_TYPE_VIDEO:
2235 packet_queue_abort(&is->videoq);
2237 /* note: we also signal this mutex to make sure we deblock the
2238 video thread in all cases */
2239 SDL_LockMutex(is->pictq_mutex);
2240 SDL_CondSignal(is->pictq_cond);
2241 SDL_UnlockMutex(is->pictq_mutex);
2243 SDL_WaitThread(is->video_tid, NULL);
2245 packet_queue_end(&is->videoq);
2247 case AVMEDIA_TYPE_SUBTITLE:
2248 packet_queue_abort(&is->subtitleq);
2250 /* note: we also signal this mutex to make sure we deblock the
2251 video thread in all cases */
2252 SDL_LockMutex(is->subpq_mutex);
2253 is->subtitle_stream_changed = 1;
2255 SDL_CondSignal(is->subpq_cond);
2256 SDL_UnlockMutex(is->subpq_mutex);
2258 SDL_WaitThread(is->subtitle_tid, NULL);
2260 packet_queue_end(&is->subtitleq);
2266 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2267 avcodec_close(avctx);
2268 switch(avctx->codec_type) {
2269 case AVMEDIA_TYPE_AUDIO:
2270 is->audio_st = NULL;
2271 is->audio_stream = -1;
2273 case AVMEDIA_TYPE_VIDEO:
2274 is->video_st = NULL;
2275 is->video_stream = -1;
2277 case AVMEDIA_TYPE_SUBTITLE:
2278 is->subtitle_st = NULL;
2279 is->subtitle_stream = -1;
2286 /* since we have only one decoding thread, we can use a global
2287 variable instead of a thread local variable */
2288 static VideoState *global_video_state;
2290 static int decode_interrupt_cb(void)
2292 return (global_video_state && global_video_state->abort_request);
2295 /* this thread gets the stream from the disk or the network */
2296 static int read_thread(void *arg)
2298 VideoState *is = arg;
2299 AVFormatContext *ic = NULL;
2301 int st_index[AVMEDIA_TYPE_NB];
2302 AVPacket pkt1, *pkt = &pkt1;
2304 int pkt_in_play_range = 0;
2305 AVDictionaryEntry *t;
2307 memset(st_index, -1, sizeof(st_index));
2308 is->video_stream = -1;
2309 is->audio_stream = -1;
2310 is->subtitle_stream = -1;
2312 global_video_state = is;
2313 avio_set_interrupt_cb(decode_interrupt_cb);
2315 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2317 print_error(is->filename, err);
2321 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2322 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2323 ret = AVERROR_OPTION_NOT_FOUND;
2329 ic->flags |= AVFMT_FLAG_GENPTS;
2331 err = av_find_stream_info(ic);
2333 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2338 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2341 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2343 /* if seeking requested, we execute it */
2344 if (start_time != AV_NOPTS_VALUE) {
2347 timestamp = start_time;
2348 /* add the stream start time */
2349 if (ic->start_time != AV_NOPTS_VALUE)
2350 timestamp += ic->start_time;
2351 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2353 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2354 is->filename, (double)timestamp / AV_TIME_BASE);
2358 for (i = 0; i < ic->nb_streams; i++)
2359 ic->streams[i]->discard = AVDISCARD_ALL;
2361 st_index[AVMEDIA_TYPE_VIDEO] =
2362 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2363 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2365 st_index[AVMEDIA_TYPE_AUDIO] =
2366 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2367 wanted_stream[AVMEDIA_TYPE_AUDIO],
2368 st_index[AVMEDIA_TYPE_VIDEO],
2371 st_index[AVMEDIA_TYPE_SUBTITLE] =
2372 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2373 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2374 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2375 st_index[AVMEDIA_TYPE_AUDIO] :
2376 st_index[AVMEDIA_TYPE_VIDEO]),
2379 av_dump_format(ic, 0, is->filename, 0);
2382 is->show_mode = show_mode;
2384 /* open the streams */
2385 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2386 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2390 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2391 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2393 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2394 if (is->show_mode == SHOW_MODE_NONE)
2395 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2397 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2398 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2401 if (is->video_stream < 0 && is->audio_stream < 0) {
2402 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2408 if (is->abort_request)
2410 if (is->paused != is->last_paused) {
2411 is->last_paused = is->paused;
2413 is->read_pause_return= av_read_pause(ic);
2417 #if CONFIG_RTSP_DEMUXER
2418 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2419 /* wait 10 ms to avoid trying to get another packet */
2426 int64_t seek_target= is->seek_pos;
2427 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2428 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2429 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2430 // of the seek_pos/seek_rel variables
2432 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2434 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2436 if (is->audio_stream >= 0) {
2437 packet_queue_flush(&is->audioq);
2438 packet_queue_put(&is->audioq, &flush_pkt);
2440 if (is->subtitle_stream >= 0) {
2441 packet_queue_flush(&is->subtitleq);
2442 packet_queue_put(&is->subtitleq, &flush_pkt);
2444 if (is->video_stream >= 0) {
2445 packet_queue_flush(&is->videoq);
2446 packet_queue_put(&is->videoq, &flush_pkt);
2453 /* if the queue are full, no need to read more */
2454 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2455 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2456 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2457 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2463 if(is->video_stream >= 0){
2464 av_init_packet(pkt);
2467 pkt->stream_index= is->video_stream;
2468 packet_queue_put(&is->videoq, pkt);
2471 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2472 if(loop!=1 && (!loop || --loop)){
2473 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2482 ret = av_read_frame(ic, pkt);
2484 if (ret == AVERROR_EOF || url_feof(ic->pb))
2486 if (ic->pb && ic->pb->error)
2488 SDL_Delay(100); /* wait for user event */
2491 /* check if packet is in play range specified by user, then queue, otherwise discard */
2492 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2493 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2494 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2495 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2496 <= ((double)duration/1000000);
2497 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2498 packet_queue_put(&is->audioq, pkt);
2499 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2500 packet_queue_put(&is->videoq, pkt);
2501 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2502 packet_queue_put(&is->subtitleq, pkt);
2504 av_free_packet(pkt);
2507 /* wait until the end */
2508 while (!is->abort_request) {
2514 /* disable interrupting */
2515 global_video_state = NULL;
2517 /* close each stream */
2518 if (is->audio_stream >= 0)
2519 stream_component_close(is, is->audio_stream);
2520 if (is->video_stream >= 0)
2521 stream_component_close(is, is->video_stream);
2522 if (is->subtitle_stream >= 0)
2523 stream_component_close(is, is->subtitle_stream);
2525 av_close_input_file(is->ic);
2526 is->ic = NULL; /* safety */
2528 avio_set_interrupt_cb(NULL);
2533 event.type = FF_QUIT_EVENT;
2534 event.user.data1 = is;
2535 SDL_PushEvent(&event);
2540 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2544 is = av_mallocz(sizeof(VideoState));
2547 av_strlcpy(is->filename, filename, sizeof(is->filename));
2548 is->iformat = iformat;
2552 /* start video display */
2553 is->pictq_mutex = SDL_CreateMutex();
2554 is->pictq_cond = SDL_CreateCond();
2556 is->subpq_mutex = SDL_CreateMutex();
2557 is->subpq_cond = SDL_CreateCond();
2559 is->av_sync_type = av_sync_type;
2560 is->read_tid = SDL_CreateThread(read_thread, is);
2561 if (!is->read_tid) {
2568 static void stream_cycle_channel(VideoState *is, int codec_type)
2570 AVFormatContext *ic = is->ic;
2571 int start_index, stream_index;
2574 if (codec_type == AVMEDIA_TYPE_VIDEO)
2575 start_index = is->video_stream;
2576 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2577 start_index = is->audio_stream;
2579 start_index = is->subtitle_stream;
2580 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2582 stream_index = start_index;
2584 if (++stream_index >= is->ic->nb_streams)
2586 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2593 if (stream_index == start_index)
2595 st = ic->streams[stream_index];
2596 if (st->codec->codec_type == codec_type) {
2597 /* check that parameters are OK */
2598 switch(codec_type) {
2599 case AVMEDIA_TYPE_AUDIO:
2600 if (st->codec->sample_rate != 0 &&
2601 st->codec->channels != 0)
2604 case AVMEDIA_TYPE_VIDEO:
2605 case AVMEDIA_TYPE_SUBTITLE:
2613 stream_component_close(is, start_index);
2614 stream_component_open(is, stream_index);
2618 static void toggle_full_screen(void)
2620 is_full_screen = !is_full_screen;
2621 video_open(cur_stream);
2624 static void toggle_pause(void)
2627 stream_toggle_pause(cur_stream);
2631 static void step_to_next_frame(void)
2634 /* if the stream is paused unpause it, then step */
2635 if (cur_stream->paused)
2636 stream_toggle_pause(cur_stream);
2641 static void toggle_audio_display(void)
2644 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2645 cur_stream->show_mode = (cur_stream->show_mode + 1) % SHOW_MODE_NB;
2646 fill_rectangle(screen,
2647 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2649 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2653 /* handle an event sent by the GUI */
2654 static void event_loop(void)
2657 double incr, pos, frac;
2661 SDL_WaitEvent(&event);
2662 switch(event.type) {
2664 if (exit_on_keydown) {
2668 switch(event.key.keysym.sym) {
2674 toggle_full_screen();
2680 case SDLK_s: //S: Step to next frame
2681 step_to_next_frame();
2685 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2689 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2693 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2696 toggle_audio_display();
2711 if (seek_by_bytes) {
2712 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2713 pos= cur_stream->video_current_pos;
2714 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2715 pos= cur_stream->audio_pkt.pos;
2717 pos = avio_tell(cur_stream->ic->pb);
2718 if (cur_stream->ic->bit_rate)
2719 incr *= cur_stream->ic->bit_rate / 8.0;
2723 stream_seek(cur_stream, pos, incr, 1);
2725 pos = get_master_clock(cur_stream);
2727 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2735 case SDL_MOUSEBUTTONDOWN:
2736 if (exit_on_mousedown) {
2740 case SDL_MOUSEMOTION:
2741 if(event.type ==SDL_MOUSEBUTTONDOWN){
2744 if(event.motion.state != SDL_PRESSED)
2749 if(seek_by_bytes || cur_stream->ic->duration<=0){
2750 uint64_t size= avio_size(cur_stream->ic->pb);
2751 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2755 int tns, thh, tmm, tss;
2756 tns = cur_stream->ic->duration/1000000LL;
2758 tmm = (tns%3600)/60;
2760 frac = x/cur_stream->width;
2765 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2766 hh, mm, ss, thh, tmm, tss);
2767 ts = frac*cur_stream->ic->duration;
2768 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2769 ts += cur_stream->ic->start_time;
2770 stream_seek(cur_stream, ts, 0, 0);
2774 case SDL_VIDEORESIZE:
2776 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2777 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2778 screen_width = cur_stream->width = event.resize.w;
2779 screen_height= cur_stream->height= event.resize.h;
2786 case FF_ALLOC_EVENT:
2787 video_open(event.user.data1);
2788 alloc_picture(event.user.data1);
2790 case FF_REFRESH_EVENT:
2791 video_refresh(event.user.data1);
2792 cur_stream->refresh=0;
2800 static int opt_frame_size(const char *opt, const char *arg)
2802 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2803 fprintf(stderr, "Incorrect frame size\n");
2804 return AVERROR(EINVAL);
2806 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2807 fprintf(stderr, "Frame size must be a multiple of 2\n");
2808 return AVERROR(EINVAL);
2813 static int opt_width(const char *opt, const char *arg)
2815 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2819 static int opt_height(const char *opt, const char *arg)
2821 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2825 static int opt_format(const char *opt, const char *arg)
2827 file_iformat = av_find_input_format(arg);
2828 if (!file_iformat) {
2829 fprintf(stderr, "Unknown input format: %s\n", arg);
2830 return AVERROR(EINVAL);
2835 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2837 frame_pix_fmt = av_get_pix_fmt(arg);
2841 static int opt_sync(const char *opt, const char *arg)
2843 if (!strcmp(arg, "audio"))
2844 av_sync_type = AV_SYNC_AUDIO_MASTER;
2845 else if (!strcmp(arg, "video"))
2846 av_sync_type = AV_SYNC_VIDEO_MASTER;
2847 else if (!strcmp(arg, "ext"))
2848 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2850 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2856 static int opt_seek(const char *opt, const char *arg)
2858 start_time = parse_time_or_die(opt, arg, 1);
2862 static int opt_duration(const char *opt, const char *arg)
2864 duration = parse_time_or_die(opt, arg, 1);
2868 static int opt_thread_count(const char *opt, const char *arg)
2870 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2872 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2877 static int opt_show_mode(const char *opt, const char *arg)
2879 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
2880 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
2881 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
2882 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
2886 static int opt_input_file(const char *opt, const char *filename)
2888 if (input_filename) {
2889 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
2890 filename, input_filename);
2893 if (!strcmp(filename, "-"))
2895 input_filename = filename;
2899 static const OptionDef options[] = {
2900 #include "cmdutils_common_opts.h"
2901 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2902 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2903 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2904 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2905 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2906 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2907 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2908 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2909 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2910 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2911 { "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
2912 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2913 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2914 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2915 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2916 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2917 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2918 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2919 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2920 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2921 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2922 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2923 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2924 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2925 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2926 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2927 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2928 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2929 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2930 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
2931 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
2932 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
2933 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
2934 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
2935 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
2937 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
2939 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
2940 { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
2941 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2942 { "i", HAS_ARG, {(void *)opt_input_file}, "read specified file", "input_file"},
2946 static void show_usage(void)
2948 printf("Simple media player\n");
2949 printf("usage: ffplay [options] input_file\n");
2953 static void show_help(void)
2955 av_log_set_callback(log_callback_help);
2957 show_help_options(options, "Main options:\n",
2959 show_help_options(options, "\nAdvanced options:\n",
2960 OPT_EXPERT, OPT_EXPERT);
2962 av_opt_show2(avcodec_opts[0], NULL,
2963 AV_OPT_FLAG_DECODING_PARAM, 0);
2965 av_opt_show2(avformat_opts, NULL,
2966 AV_OPT_FLAG_DECODING_PARAM, 0);
2967 #if !CONFIG_AVFILTER
2969 av_opt_show2(sws_opts, NULL,
2970 AV_OPT_FLAG_ENCODING_PARAM, 0);
2972 printf("\nWhile playing:\n"
2974 "f toggle full screen\n"
2976 "a cycle audio channel\n"
2977 "v cycle video channel\n"
2978 "t cycle subtitle channel\n"
2979 "w show audio waves\n"
2980 "s activate frame-step mode\n"
2981 "left/right seek backward/forward 10 seconds\n"
2982 "down/up seek backward/forward 1 minute\n"
2983 "mouse click seek to percentage in file corresponding to fraction of width\n"
2987 /* Called from the main */
2988 int main(int argc, char **argv)
2992 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2994 /* register all codecs, demux and protocols */
2995 avcodec_register_all();
2997 avdevice_register_all();
3000 avfilter_register_all();
3008 parse_options(argc, argv, options, opt_input_file);
3010 if (!input_filename) {
3012 fprintf(stderr, "An input file must be specified\n");
3013 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3017 if (display_disable) {
3020 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3022 flags &= ~SDL_INIT_AUDIO;
3023 #if !defined(__MINGW32__) && !defined(__APPLE__)
3024 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3026 if (SDL_Init (flags)) {
3027 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3031 if (!display_disable) {
3032 #if HAVE_SDL_VIDEO_SIZE
3033 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3034 fs_screen_width = vi->current_w;
3035 fs_screen_height = vi->current_h;
3039 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3040 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3041 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3043 av_init_packet(&flush_pkt);
3044 flush_pkt.data= "FLUSH";
3046 cur_stream = stream_open(input_filename, file_iformat);