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/parseutils.h"
31 #include "libavutil/samplefmt.h"
32 #include "libavutil/avassert.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/avcodec.h"
42 # include "libavfilter/avfilter.h"
43 # include "libavfilter/avfiltergraph.h"
49 #include <SDL_thread.h>
52 #undef main /* We don't want SDL to override our main() */
58 const char program_name[] = "ffplay";
59 const int program_birth_year = 2003;
64 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
65 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
68 /* SDL audio buffer size, in samples. Should be small to have precise
69 A/V sync as SDL does not have hardware buffer fullness info. */
70 #define SDL_AUDIO_BUFFER_SIZE 1024
72 /* no AV sync correction is done if below the AV sync threshold */
73 #define AV_SYNC_THRESHOLD 0.01
74 /* no AV correction is done if too big error */
75 #define AV_NOSYNC_THRESHOLD 10.0
77 #define FRAME_SKIP_FACTOR 0.05
79 /* maximum audio speed change to get correct sync */
80 #define SAMPLE_CORRECTION_PERCENT_MAX 10
82 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
83 #define AUDIO_DIFF_AVG_NB 20
85 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
86 #define SAMPLE_ARRAY_SIZE (2*65536)
88 static int sws_flags = SWS_BICUBIC;
90 typedef struct PacketQueue {
91 AVPacketList *first_pkt, *last_pkt;
99 #define VIDEO_PICTURE_QUEUE_SIZE 2
100 #define SUBPICTURE_QUEUE_SIZE 4
102 typedef struct VideoPicture {
103 double pts; ///<presentation time stamp for this picture
104 double target_clock; ///<av_gettime() time at which this should be displayed ideally
105 int64_t pos; ///<byte position in file
107 int width, height; /* source height & width */
109 enum PixelFormat pix_fmt;
112 AVFilterBufferRef *picref;
116 typedef struct SubPicture {
117 double pts; /* presentation time stamp for this picture */
122 AV_SYNC_AUDIO_MASTER, /* default choice */
123 AV_SYNC_VIDEO_MASTER,
124 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
127 typedef struct VideoState {
128 SDL_Thread *read_tid;
129 SDL_Thread *video_tid;
130 SDL_Thread *refresh_tid;
131 AVInputFormat *iformat;
140 int read_pause_return;
146 double external_clock; /* external clock base */
147 int64_t external_clock_time;
150 double audio_diff_cum; /* used for AV difference average computation */
151 double audio_diff_avg_coef;
152 double audio_diff_threshold;
153 int audio_diff_avg_count;
156 int audio_hw_buf_size;
157 /* samples output by the codec. we reserve more space for avsync
159 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
160 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
162 unsigned int audio_buf_size; /* in bytes */
163 int audio_buf_index; /* in bytes */
164 AVPacket audio_pkt_temp;
166 enum AVSampleFormat audio_src_fmt;
167 AVAudioConvert *reformat_ctx;
170 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
172 int16_t sample_array[SAMPLE_ARRAY_SIZE];
173 int sample_array_index;
177 FFTSample *rdft_data;
180 SDL_Thread *subtitle_tid;
182 int subtitle_stream_changed;
183 AVStream *subtitle_st;
184 PacketQueue subtitleq;
185 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
186 int subpq_size, subpq_rindex, subpq_windex;
187 SDL_mutex *subpq_mutex;
188 SDL_cond *subpq_cond;
191 double frame_last_pts;
192 double frame_last_delay;
193 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
197 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
198 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
199 int64_t video_current_pos; ///<current displayed file pos
200 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
201 int pictq_size, pictq_rindex, pictq_windex;
202 SDL_mutex *pictq_mutex;
203 SDL_cond *pictq_cond;
205 struct SwsContext *img_convert_ctx;
209 int width, height, xleft, ytop;
212 AVFilterContext *out_video_filter; ///<the last filter in the video chain
216 float skip_frames_index;
220 static void show_help(void);
222 /* options specified by the user */
223 static AVInputFormat *file_iformat;
224 static const char *input_filename;
225 static const char *window_title;
226 static int fs_screen_width;
227 static int fs_screen_height;
228 static int screen_width = 0;
229 static int screen_height = 0;
230 static int frame_width = 0;
231 static int frame_height = 0;
232 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
233 static int audio_disable;
234 static int video_disable;
235 static int wanted_stream[AVMEDIA_TYPE_NB]={
236 [AVMEDIA_TYPE_AUDIO]=-1,
237 [AVMEDIA_TYPE_VIDEO]=-1,
238 [AVMEDIA_TYPE_SUBTITLE]=-1,
240 static int seek_by_bytes=-1;
241 static int display_disable;
242 static int show_status = 1;
243 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
244 static int64_t start_time = AV_NOPTS_VALUE;
245 static int64_t duration = AV_NOPTS_VALUE;
246 static int debug = 0;
247 static int debug_mv = 0;
249 static int thread_count = 1;
250 static int workaround_bugs = 1;
252 static int genpts = 0;
253 static int lowres = 0;
254 static int idct = FF_IDCT_AUTO;
255 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
256 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
257 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
258 static int error_recognition = FF_ER_CAREFUL;
259 static int error_concealment = 3;
260 static int decoder_reorder_pts= -1;
262 static int exit_on_keydown;
263 static int exit_on_mousedown;
265 static int framedrop=1;
266 static enum ShowMode show_mode = SHOW_MODE_NONE;
268 static int rdftspeed=20;
270 static char *vfilters = NULL;
273 /* current context */
274 static int is_full_screen;
275 static VideoState *cur_stream;
276 static int64_t audio_callback_time;
278 static AVPacket flush_pkt;
280 #define FF_ALLOC_EVENT (SDL_USEREVENT)
281 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
282 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
284 static SDL_Surface *screen;
286 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
290 /* duplicate the packet */
291 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
294 pkt1 = av_malloc(sizeof(AVPacketList));
301 SDL_LockMutex(q->mutex);
307 q->last_pkt->next = pkt1;
310 q->size += pkt1->pkt.size + sizeof(*pkt1);
311 /* XXX: should duplicate packet data in DV case */
312 SDL_CondSignal(q->cond);
314 SDL_UnlockMutex(q->mutex);
318 /* packet queue handling */
319 static void packet_queue_init(PacketQueue *q)
321 memset(q, 0, sizeof(PacketQueue));
322 q->mutex = SDL_CreateMutex();
323 q->cond = SDL_CreateCond();
324 packet_queue_put(q, &flush_pkt);
327 static void packet_queue_flush(PacketQueue *q)
329 AVPacketList *pkt, *pkt1;
331 SDL_LockMutex(q->mutex);
332 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
334 av_free_packet(&pkt->pkt);
341 SDL_UnlockMutex(q->mutex);
344 static void packet_queue_end(PacketQueue *q)
346 packet_queue_flush(q);
347 SDL_DestroyMutex(q->mutex);
348 SDL_DestroyCond(q->cond);
351 static void packet_queue_abort(PacketQueue *q)
353 SDL_LockMutex(q->mutex);
355 q->abort_request = 1;
357 SDL_CondSignal(q->cond);
359 SDL_UnlockMutex(q->mutex);
362 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
363 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
368 SDL_LockMutex(q->mutex);
371 if (q->abort_request) {
378 q->first_pkt = pkt1->next;
382 q->size -= pkt1->pkt.size + sizeof(*pkt1);
391 SDL_CondWait(q->cond, q->mutex);
394 SDL_UnlockMutex(q->mutex);
398 static inline void fill_rectangle(SDL_Surface *screen,
399 int x, int y, int w, int h, int color)
406 SDL_FillRect(screen, &rect, color);
409 #define ALPHA_BLEND(a, oldp, newp, s)\
410 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
412 #define RGBA_IN(r, g, b, a, s)\
414 unsigned int v = ((const uint32_t *)(s))[0];\
415 a = (v >> 24) & 0xff;\
416 r = (v >> 16) & 0xff;\
417 g = (v >> 8) & 0xff;\
421 #define YUVA_IN(y, u, v, a, s, pal)\
423 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
424 a = (val >> 24) & 0xff;\
425 y = (val >> 16) & 0xff;\
426 u = (val >> 8) & 0xff;\
430 #define YUVA_OUT(d, y, u, v, a)\
432 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
438 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
440 int wrap, wrap3, width2, skip2;
441 int y, u, v, a, u1, v1, a1, w, h;
442 uint8_t *lum, *cb, *cr;
445 int dstx, dsty, dstw, dsth;
447 dstw = av_clip(rect->w, 0, imgw);
448 dsth = av_clip(rect->h, 0, imgh);
449 dstx = av_clip(rect->x, 0, imgw - dstw);
450 dsty = av_clip(rect->y, 0, imgh - dsth);
451 lum = dst->data[0] + dsty * dst->linesize[0];
452 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
453 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
455 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
457 wrap = dst->linesize[0];
458 wrap3 = rect->pict.linesize[0];
459 p = rect->pict.data[0];
460 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
468 YUVA_IN(y, u, v, a, p, pal);
469 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
470 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
471 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
477 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
478 YUVA_IN(y, u, v, a, p, pal);
482 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
484 YUVA_IN(y, u, v, a, p + BPP, pal);
488 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
489 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
490 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
497 YUVA_IN(y, u, v, a, p, pal);
498 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
499 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
500 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
504 p += wrap3 - dstw * BPP;
505 lum += wrap - dstw - dstx;
506 cb += dst->linesize[1] - width2 - skip2;
507 cr += dst->linesize[2] - width2 - skip2;
509 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
515 YUVA_IN(y, u, v, a, p, pal);
519 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
522 YUVA_IN(y, u, v, a, p, pal);
526 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
527 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
528 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
534 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
535 YUVA_IN(y, u, v, a, p, pal);
539 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
541 YUVA_IN(y, u, v, a, p + BPP, pal);
545 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
549 YUVA_IN(y, u, v, a, p, pal);
553 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
555 YUVA_IN(y, u, v, a, p + BPP, pal);
559 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
561 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
562 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
566 p += -wrap3 + 2 * BPP;
570 YUVA_IN(y, u, v, a, p, pal);
574 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
577 YUVA_IN(y, u, v, a, p, pal);
581 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
582 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
583 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
589 p += wrap3 + (wrap3 - dstw * BPP);
590 lum += wrap + (wrap - dstw - dstx);
591 cb += dst->linesize[1] - width2 - skip2;
592 cr += dst->linesize[2] - width2 - skip2;
594 /* handle odd height */
601 YUVA_IN(y, u, v, a, p, pal);
602 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
603 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
604 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
610 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
611 YUVA_IN(y, u, v, a, p, pal);
615 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
617 YUVA_IN(y, u, v, a, p + BPP, pal);
621 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
622 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
623 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
630 YUVA_IN(y, u, v, a, p, pal);
631 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
632 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
633 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
638 static void free_subpicture(SubPicture *sp)
640 avsubtitle_free(&sp->sub);
643 static void video_image_display(VideoState *is)
649 int width, height, x, y;
653 vp = &is->pictq[is->pictq_rindex];
656 if (vp->picref->video->sample_aspect_ratio.num == 0)
659 aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio);
662 /* XXX: use variable in the frame */
663 if (is->video_st->sample_aspect_ratio.num)
664 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
665 else if (is->video_st->codec->sample_aspect_ratio.num)
666 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
670 if (aspect_ratio <= 0.0)
672 aspect_ratio *= (float)vp->width / (float)vp->height;
674 if (is->subtitle_st) {
675 if (is->subpq_size > 0) {
676 sp = &is->subpq[is->subpq_rindex];
678 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
679 SDL_LockYUVOverlay (vp->bmp);
681 pict.data[0] = vp->bmp->pixels[0];
682 pict.data[1] = vp->bmp->pixels[2];
683 pict.data[2] = vp->bmp->pixels[1];
685 pict.linesize[0] = vp->bmp->pitches[0];
686 pict.linesize[1] = vp->bmp->pitches[2];
687 pict.linesize[2] = vp->bmp->pitches[1];
689 for (i = 0; i < sp->sub.num_rects; i++)
690 blend_subrect(&pict, sp->sub.rects[i],
691 vp->bmp->w, vp->bmp->h);
693 SDL_UnlockYUVOverlay (vp->bmp);
699 /* XXX: we suppose the screen has a 1.0 pixel ratio */
701 width = ((int)rint(height * aspect_ratio)) & ~1;
702 if (width > is->width) {
704 height = ((int)rint(width / aspect_ratio)) & ~1;
706 x = (is->width - width) / 2;
707 y = (is->height - height) / 2;
708 is->no_background = 0;
709 rect.x = is->xleft + x;
710 rect.y = is->ytop + y;
711 rect.w = FFMAX(width, 1);
712 rect.h = FFMAX(height, 1);
713 SDL_DisplayYUVOverlay(vp->bmp, &rect);
717 /* get the current audio output buffer size, in samples. With SDL, we
718 cannot have a precise information */
719 static int audio_write_get_buf_size(VideoState *is)
721 return is->audio_buf_size - is->audio_buf_index;
724 static inline int compute_mod(int a, int b)
726 return a < 0 ? a%b + b : a%b;
729 static void video_audio_display(VideoState *s)
731 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
732 int ch, channels, h, h2, bgcolor, fgcolor;
734 int rdft_bits, nb_freq;
736 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
738 nb_freq= 1<<(rdft_bits-1);
740 /* compute display index : center on currently output samples */
741 channels = s->audio_st->codec->channels;
742 nb_display_channels = channels;
744 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
746 delay = audio_write_get_buf_size(s);
749 /* to be more precise, we take into account the time spent since
750 the last buffer computation */
751 if (audio_callback_time) {
752 time_diff = av_gettime() - audio_callback_time;
753 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
756 delay += 2*data_used;
757 if (delay < data_used)
760 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
761 if (s->show_mode == SHOW_MODE_WAVES) {
763 for(i=0; i<1000; i+=channels){
764 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
765 int a= s->sample_array[idx];
766 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
767 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
768 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
770 if(h<score && (b^c)<0){
777 s->last_i_start = i_start;
779 i_start = s->last_i_start;
782 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
783 if (s->show_mode == SHOW_MODE_WAVES) {
784 fill_rectangle(screen,
785 s->xleft, s->ytop, s->width, s->height,
788 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
790 /* total height for one channel */
791 h = s->height / nb_display_channels;
792 /* graph height / 2 */
794 for(ch = 0;ch < nb_display_channels; ch++) {
796 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
797 for(x = 0; x < s->width; x++) {
798 y = (s->sample_array[i] * h2) >> 15;
805 fill_rectangle(screen,
806 s->xleft + x, ys, 1, y,
809 if (i >= SAMPLE_ARRAY_SIZE)
810 i -= SAMPLE_ARRAY_SIZE;
814 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
816 for(ch = 1;ch < nb_display_channels; ch++) {
817 y = s->ytop + ch * h;
818 fill_rectangle(screen,
819 s->xleft, y, s->width, 1,
822 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
824 nb_display_channels= FFMIN(nb_display_channels, 2);
825 if(rdft_bits != s->rdft_bits){
826 av_rdft_end(s->rdft);
827 av_free(s->rdft_data);
828 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
829 s->rdft_bits= rdft_bits;
830 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
834 for(ch = 0;ch < nb_display_channels; ch++) {
835 data[ch] = s->rdft_data + 2*nb_freq*ch;
837 for(x = 0; x < 2*nb_freq; x++) {
838 double w= (x-nb_freq)*(1.0/nb_freq);
839 data[ch][x]= s->sample_array[i]*(1.0-w*w);
841 if (i >= SAMPLE_ARRAY_SIZE)
842 i -= SAMPLE_ARRAY_SIZE;
844 av_rdft_calc(s->rdft, data[ch]);
846 //least efficient way to do this, we should of course directly access it but its more than fast enough
847 for(y=0; y<s->height; y++){
848 double w= 1/sqrt(nb_freq);
849 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]));
850 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
851 + data[1][2*y+1]*data[1][2*y+1])) : a;
854 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
856 fill_rectangle(screen,
857 s->xpos, s->height-y, 1, 1,
861 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
863 if(s->xpos >= s->width)
868 static int video_open(VideoState *is){
869 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
872 if(is_full_screen) flags |= SDL_FULLSCREEN;
873 else flags |= SDL_RESIZABLE;
875 if (is_full_screen && fs_screen_width) {
877 h = fs_screen_height;
878 } else if(!is_full_screen && screen_width){
882 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
883 w = is->out_video_filter->inputs[0]->w;
884 h = is->out_video_filter->inputs[0]->h;
886 }else if (is->video_st && is->video_st->codec->width){
887 w = is->video_st->codec->width;
888 h = is->video_st->codec->height;
894 if(screen && is->width == screen->w && screen->w == w
895 && is->height== screen->h && screen->h == h)
899 screen = SDL_SetVideoMode(w, h, 0, flags);
901 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
902 screen = SDL_SetVideoMode(w, h, 24, flags);
905 fprintf(stderr, "SDL: could not set video mode - exiting\n");
909 window_title = input_filename;
910 SDL_WM_SetCaption(window_title, window_title);
912 is->width = screen->w;
913 is->height = screen->h;
918 /* display the current picture, if any */
919 static void video_display(VideoState *is)
922 video_open(cur_stream);
923 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
924 video_audio_display(is);
925 else if (is->video_st)
926 video_image_display(is);
929 static int refresh_thread(void *opaque)
931 VideoState *is= opaque;
932 while(!is->abort_request){
934 event.type = FF_REFRESH_EVENT;
935 event.user.data1 = opaque;
938 SDL_PushEvent(&event);
940 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
941 usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
946 /* get the current audio clock value */
947 static double get_audio_clock(VideoState *is)
950 int hw_buf_size, bytes_per_sec;
951 pts = is->audio_clock;
952 hw_buf_size = audio_write_get_buf_size(is);
955 bytes_per_sec = is->audio_st->codec->sample_rate *
956 2 * is->audio_st->codec->channels;
959 pts -= (double)hw_buf_size / bytes_per_sec;
963 /* get the current video clock value */
964 static double get_video_clock(VideoState *is)
967 return is->video_current_pts;
969 return is->video_current_pts_drift + av_gettime() / 1000000.0;
973 /* get the current external clock value */
974 static double get_external_clock(VideoState *is)
978 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
981 /* get the current master clock value */
982 static double get_master_clock(VideoState *is)
986 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
988 val = get_video_clock(is);
990 val = get_audio_clock(is);
991 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
993 val = get_audio_clock(is);
995 val = get_video_clock(is);
997 val = get_external_clock(is);
1002 /* seek in the stream */
1003 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1005 if (!is->seek_req) {
1008 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1010 is->seek_flags |= AVSEEK_FLAG_BYTE;
1015 /* pause or resume the video */
1016 static void stream_toggle_pause(VideoState *is)
1019 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1020 if(is->read_pause_return != AVERROR(ENOSYS)){
1021 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1023 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1025 is->paused = !is->paused;
1028 static double compute_target_time(double frame_current_pts, VideoState *is)
1030 double delay, sync_threshold, diff;
1032 /* compute nominal delay */
1033 delay = frame_current_pts - is->frame_last_pts;
1034 if (delay <= 0 || delay >= 10.0) {
1035 /* if incorrect delay, use previous one */
1036 delay = is->frame_last_delay;
1038 is->frame_last_delay = delay;
1040 is->frame_last_pts = frame_current_pts;
1042 /* update delay to follow master synchronisation source */
1043 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1044 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1045 /* if video is slave, we try to correct big delays by
1046 duplicating or deleting a frame */
1047 diff = get_video_clock(is) - get_master_clock(is);
1049 /* skip or repeat frame. We take into account the
1050 delay to compute the threshold. I still don't know
1051 if it is the best guess */
1052 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1053 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1054 if (diff <= -sync_threshold)
1056 else if (diff >= sync_threshold)
1060 is->frame_timer += delay;
1061 #if defined(DEBUG_SYNC)
1062 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1063 delay, actual_delay, frame_current_pts, -diff);
1066 return is->frame_timer;
1069 /* called to display each frame */
1070 static void video_refresh(void *opaque)
1072 VideoState *is = opaque;
1075 SubPicture *sp, *sp2;
1079 if (is->pictq_size == 0) {
1080 //nothing to do, no picture to display in the que
1082 double time= av_gettime()/1000000.0;
1084 /* dequeue the picture */
1085 vp = &is->pictq[is->pictq_rindex];
1087 if(time < vp->target_clock)
1089 /* update current video pts */
1090 is->video_current_pts = vp->pts;
1091 is->video_current_pts_drift = is->video_current_pts - time;
1092 is->video_current_pos = vp->pos;
1093 if(is->pictq_size > 1){
1094 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1095 assert(nextvp->target_clock >= vp->target_clock);
1096 next_target= nextvp->target_clock;
1098 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1100 if(framedrop && time > next_target){
1101 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1102 if(is->pictq_size > 1 || time > next_target + 0.5){
1103 /* update queue size and signal for next picture */
1104 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1105 is->pictq_rindex = 0;
1107 SDL_LockMutex(is->pictq_mutex);
1109 SDL_CondSignal(is->pictq_cond);
1110 SDL_UnlockMutex(is->pictq_mutex);
1115 if(is->subtitle_st) {
1116 if (is->subtitle_stream_changed) {
1117 SDL_LockMutex(is->subpq_mutex);
1119 while (is->subpq_size) {
1120 free_subpicture(&is->subpq[is->subpq_rindex]);
1122 /* update queue size and signal for next picture */
1123 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1124 is->subpq_rindex = 0;
1128 is->subtitle_stream_changed = 0;
1130 SDL_CondSignal(is->subpq_cond);
1131 SDL_UnlockMutex(is->subpq_mutex);
1133 if (is->subpq_size > 0) {
1134 sp = &is->subpq[is->subpq_rindex];
1136 if (is->subpq_size > 1)
1137 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1141 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1142 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1144 free_subpicture(sp);
1146 /* update queue size and signal for next picture */
1147 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1148 is->subpq_rindex = 0;
1150 SDL_LockMutex(is->subpq_mutex);
1152 SDL_CondSignal(is->subpq_cond);
1153 SDL_UnlockMutex(is->subpq_mutex);
1159 /* display picture */
1160 if (!display_disable)
1163 /* update queue size and signal for next picture */
1164 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1165 is->pictq_rindex = 0;
1167 SDL_LockMutex(is->pictq_mutex);
1169 SDL_CondSignal(is->pictq_cond);
1170 SDL_UnlockMutex(is->pictq_mutex);
1172 } else if (is->audio_st) {
1173 /* draw the next audio frame */
1175 /* if only audio stream, then display the audio bars (better
1176 than nothing, just to test the implementation */
1178 /* display picture */
1179 if (!display_disable)
1183 static int64_t last_time;
1185 int aqsize, vqsize, sqsize;
1188 cur_time = av_gettime();
1189 if (!last_time || (cur_time - last_time) >= 30000) {
1194 aqsize = is->audioq.size;
1196 vqsize = is->videoq.size;
1197 if (is->subtitle_st)
1198 sqsize = is->subtitleq.size;
1200 if (is->audio_st && is->video_st)
1201 av_diff = get_audio_clock(is) - get_video_clock(is);
1202 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1203 get_master_clock(is),
1205 FFMAX(is->skip_frames-1, 0),
1209 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1210 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1212 last_time = cur_time;
1217 static void stream_close(VideoState *is)
1221 /* XXX: use a special url_shutdown call to abort parse cleanly */
1222 is->abort_request = 1;
1223 SDL_WaitThread(is->read_tid, NULL);
1224 SDL_WaitThread(is->refresh_tid, NULL);
1226 /* free all pictures */
1227 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1231 avfilter_unref_buffer(vp->picref);
1236 SDL_FreeYUVOverlay(vp->bmp);
1240 SDL_DestroyMutex(is->pictq_mutex);
1241 SDL_DestroyCond(is->pictq_cond);
1242 SDL_DestroyMutex(is->subpq_mutex);
1243 SDL_DestroyCond(is->subpq_cond);
1244 #if !CONFIG_AVFILTER
1245 if (is->img_convert_ctx)
1246 sws_freeContext(is->img_convert_ctx);
1251 static void do_exit(void)
1254 stream_close(cur_stream);
1264 av_log(NULL, AV_LOG_QUIET, "");
1268 /* allocate a picture (needs to do that in main thread to avoid
1269 potential locking problems */
1270 static void alloc_picture(void *opaque)
1272 VideoState *is = opaque;
1275 vp = &is->pictq[is->pictq_windex];
1278 SDL_FreeYUVOverlay(vp->bmp);
1282 avfilter_unref_buffer(vp->picref);
1285 vp->width = is->out_video_filter->inputs[0]->w;
1286 vp->height = is->out_video_filter->inputs[0]->h;
1287 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1289 vp->width = is->video_st->codec->width;
1290 vp->height = is->video_st->codec->height;
1291 vp->pix_fmt = is->video_st->codec->pix_fmt;
1294 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1297 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1298 /* SDL allocates a buffer smaller than requested if the video
1299 * overlay hardware is unable to support the requested size. */
1300 fprintf(stderr, "Error: the video system does not support an image\n"
1301 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1302 "to reduce the image size.\n", vp->width, vp->height );
1306 SDL_LockMutex(is->pictq_mutex);
1308 SDL_CondSignal(is->pictq_cond);
1309 SDL_UnlockMutex(is->pictq_mutex);
1312 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1315 double frame_delay, pts = pts1;
1317 /* compute the exact PTS for the picture if it is omitted in the stream
1318 * pts1 is the dts of the pkt / pts of the frame */
1320 /* update video clock with pts, if present */
1321 is->video_clock = pts;
1323 pts = is->video_clock;
1325 /* update video clock for next frame */
1326 frame_delay = av_q2d(is->video_st->codec->time_base);
1327 /* for MPEG2, the frame can be repeated, so we update the
1328 clock accordingly */
1329 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1330 is->video_clock += frame_delay;
1332 #if defined(DEBUG_SYNC) && 0
1333 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1334 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1337 /* wait until we have space to put a new picture */
1338 SDL_LockMutex(is->pictq_mutex);
1340 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1341 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1343 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1344 !is->videoq.abort_request) {
1345 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1347 SDL_UnlockMutex(is->pictq_mutex);
1349 if (is->videoq.abort_request)
1352 vp = &is->pictq[is->pictq_windex];
1354 /* alloc or resize hardware picture buffer */
1357 vp->width != is->out_video_filter->inputs[0]->w ||
1358 vp->height != is->out_video_filter->inputs[0]->h) {
1360 vp->width != is->video_st->codec->width ||
1361 vp->height != is->video_st->codec->height) {
1367 /* the allocation must be done in the main thread to avoid
1369 event.type = FF_ALLOC_EVENT;
1370 event.user.data1 = is;
1371 SDL_PushEvent(&event);
1373 /* wait until the picture is allocated */
1374 SDL_LockMutex(is->pictq_mutex);
1375 while (!vp->allocated && !is->videoq.abort_request) {
1376 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1378 SDL_UnlockMutex(is->pictq_mutex);
1380 if (is->videoq.abort_request)
1384 /* if the frame is not skipped, then display it */
1389 avfilter_unref_buffer(vp->picref);
1390 vp->picref = src_frame->opaque;
1393 /* get a pointer on the bitmap */
1394 SDL_LockYUVOverlay (vp->bmp);
1396 memset(&pict,0,sizeof(AVPicture));
1397 pict.data[0] = vp->bmp->pixels[0];
1398 pict.data[1] = vp->bmp->pixels[2];
1399 pict.data[2] = vp->bmp->pixels[1];
1401 pict.linesize[0] = vp->bmp->pitches[0];
1402 pict.linesize[1] = vp->bmp->pitches[2];
1403 pict.linesize[2] = vp->bmp->pitches[1];
1406 //FIXME use direct rendering
1407 av_picture_copy(&pict, (AVPicture *)src_frame,
1408 vp->pix_fmt, vp->width, vp->height);
1410 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1411 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1412 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1413 PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1414 if (is->img_convert_ctx == NULL) {
1415 fprintf(stderr, "Cannot initialize the conversion context\n");
1418 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1419 0, vp->height, pict.data, pict.linesize);
1421 /* update the bitmap content */
1422 SDL_UnlockYUVOverlay(vp->bmp);
1427 /* now we can update the picture count */
1428 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1429 is->pictq_windex = 0;
1430 SDL_LockMutex(is->pictq_mutex);
1431 vp->target_clock= compute_target_time(vp->pts, is);
1434 SDL_UnlockMutex(is->pictq_mutex);
1439 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1441 int len1 av_unused, got_picture, i;
1443 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1446 if (pkt->data == flush_pkt.data) {
1447 avcodec_flush_buffers(is->video_st->codec);
1449 SDL_LockMutex(is->pictq_mutex);
1450 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1451 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1452 is->pictq[i].target_clock= 0;
1454 while (is->pictq_size && !is->videoq.abort_request) {
1455 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1457 is->video_current_pos = -1;
1458 SDL_UnlockMutex(is->pictq_mutex);
1460 is->frame_last_pts = AV_NOPTS_VALUE;
1461 is->frame_last_delay = 0;
1462 is->frame_timer = (double)av_gettime() / 1000000.0;
1463 is->skip_frames = 1;
1464 is->skip_frames_index = 0;
1468 len1 = avcodec_decode_video2(is->video_st->codec,
1469 frame, &got_picture,
1473 if (decoder_reorder_pts == -1) {
1474 *pts = frame->best_effort_timestamp;
1475 } else if (decoder_reorder_pts) {
1476 *pts = frame->pkt_pts;
1478 *pts = frame->pkt_dts;
1481 if (*pts == AV_NOPTS_VALUE) {
1485 is->skip_frames_index += 1;
1486 if(is->skip_frames_index >= is->skip_frames){
1487 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1502 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1504 AVFilterContext *ctx = codec->opaque;
1505 AVFilterBufferRef *ref;
1506 int perms = AV_PERM_WRITE;
1507 int i, w, h, stride[4];
1511 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1513 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1514 perms |= AV_PERM_NEG_LINESIZES;
1516 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1517 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1518 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1519 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1521 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1526 if(av_image_check_size(w, h, 0, codec))
1529 avcodec_align_dimensions2(codec, &w, &h, stride);
1530 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1534 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1537 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
1538 ref->video->w = codec->width;
1539 ref->video->h = codec->height;
1540 for(i = 0; i < 4; i ++) {
1541 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1542 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1545 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1547 pic->data[i] = ref->data[i];
1548 pic->linesize[i] = ref->linesize[i];
1552 pic->type = FF_BUFFER_TYPE_USER;
1553 pic->reordered_opaque = codec->reordered_opaque;
1554 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1555 else pic->pkt_pts = AV_NOPTS_VALUE;
1559 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1561 memset(pic->data, 0, sizeof(pic->data));
1562 avfilter_unref_buffer(pic->opaque);
1565 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1567 AVFilterBufferRef *ref = pic->opaque;
1569 if (pic->data[0] == NULL) {
1570 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1571 return codec->get_buffer(codec, pic);
1574 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1575 (codec->pix_fmt != ref->format)) {
1576 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1580 pic->reordered_opaque = codec->reordered_opaque;
1581 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1582 else pic->pkt_pts = AV_NOPTS_VALUE;
1586 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1588 FilterPriv *priv = ctx->priv;
1589 AVCodecContext *codec;
1590 if(!opaque) return -1;
1593 codec = priv->is->video_st->codec;
1594 codec->opaque = ctx;
1595 if((codec->codec->capabilities & CODEC_CAP_DR1)
1597 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1599 codec->get_buffer = input_get_buffer;
1600 codec->release_buffer = input_release_buffer;
1601 codec->reget_buffer = input_reget_buffer;
1602 codec->thread_safe_callbacks = 1;
1605 priv->frame = avcodec_alloc_frame();
1610 static void input_uninit(AVFilterContext *ctx)
1612 FilterPriv *priv = ctx->priv;
1613 av_free(priv->frame);
1616 static int input_request_frame(AVFilterLink *link)
1618 FilterPriv *priv = link->src->priv;
1619 AVFilterBufferRef *picref;
1624 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1625 av_free_packet(&pkt);
1630 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1632 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1633 av_image_copy(picref->data, picref->linesize,
1634 priv->frame->data, priv->frame->linesize,
1635 picref->format, link->w, link->h);
1637 av_free_packet(&pkt);
1639 avfilter_copy_frame_props(picref, priv->frame);
1642 avfilter_start_frame(link, picref);
1643 avfilter_draw_slice(link, 0, link->h, 1);
1644 avfilter_end_frame(link);
1649 static int input_query_formats(AVFilterContext *ctx)
1651 FilterPriv *priv = ctx->priv;
1652 enum PixelFormat pix_fmts[] = {
1653 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1656 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1660 static int input_config_props(AVFilterLink *link)
1662 FilterPriv *priv = link->src->priv;
1663 AVCodecContext *c = priv->is->video_st->codec;
1666 link->h = c->height;
1667 link->time_base = priv->is->video_st->time_base;
1672 static AVFilter input_filter =
1674 .name = "ffplay_input",
1676 .priv_size = sizeof(FilterPriv),
1679 .uninit = input_uninit,
1681 .query_formats = input_query_formats,
1683 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1684 .outputs = (AVFilterPad[]) {{ .name = "default",
1685 .type = AVMEDIA_TYPE_VIDEO,
1686 .request_frame = input_request_frame,
1687 .config_props = input_config_props, },
1691 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1693 char sws_flags_str[128];
1695 FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1696 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1697 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1698 graph->scale_sws_opts = av_strdup(sws_flags_str);
1700 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1701 NULL, is, graph)) < 0)
1703 if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1704 NULL, &ffsink_ctx, graph)) < 0)
1708 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1709 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1711 outputs->name = av_strdup("in");
1712 outputs->filter_ctx = filt_src;
1713 outputs->pad_idx = 0;
1714 outputs->next = NULL;
1716 inputs->name = av_strdup("out");
1717 inputs->filter_ctx = filt_out;
1718 inputs->pad_idx = 0;
1719 inputs->next = NULL;
1721 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1723 av_freep(&vfilters);
1725 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1729 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1732 is->out_video_filter = filt_out;
1737 #endif /* CONFIG_AVFILTER */
1739 static int video_thread(void *arg)
1741 VideoState *is = arg;
1742 AVFrame *frame= avcodec_alloc_frame();
1743 int64_t pts_int, pos;
1748 AVFilterGraph *graph = avfilter_graph_alloc();
1749 AVFilterContext *filt_out = NULL;
1751 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1753 filt_out = is->out_video_filter;
1757 #if !CONFIG_AVFILTER
1760 AVFilterBufferRef *picref;
1763 while (is->paused && !is->videoq.abort_request)
1766 ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1768 pts_int = picref->pts;
1770 frame->opaque = picref;
1773 if (av_cmp_q(tb, is->video_st->time_base)) {
1774 av_unused int64_t pts1 = pts_int;
1775 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1776 av_dlog(NULL, "video_thread(): "
1777 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1778 tb.num, tb.den, pts1,
1779 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1782 ret = get_video_frame(is, frame, &pts_int, &pkt);
1784 av_free_packet(&pkt);
1787 if (ret < 0) goto the_end;
1792 pts = pts_int*av_q2d(is->video_st->time_base);
1794 ret = queue_picture(is, frame, pts, pos);
1801 stream_toggle_pause(cur_stream);
1805 avfilter_graph_free(&graph);
1811 static int subtitle_thread(void *arg)
1813 VideoState *is = arg;
1815 AVPacket pkt1, *pkt = &pkt1;
1816 int len1 av_unused, got_subtitle;
1819 int r, g, b, y, u, v, a;
1822 while (is->paused && !is->subtitleq.abort_request) {
1825 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1828 if(pkt->data == flush_pkt.data){
1829 avcodec_flush_buffers(is->subtitle_st->codec);
1832 SDL_LockMutex(is->subpq_mutex);
1833 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1834 !is->subtitleq.abort_request) {
1835 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1837 SDL_UnlockMutex(is->subpq_mutex);
1839 if (is->subtitleq.abort_request)
1842 sp = &is->subpq[is->subpq_windex];
1844 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1845 this packet, if any */
1847 if (pkt->pts != AV_NOPTS_VALUE)
1848 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1850 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1851 &sp->sub, &got_subtitle,
1853 if (got_subtitle && sp->sub.format == 0) {
1856 for (i = 0; i < sp->sub.num_rects; i++)
1858 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1860 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1861 y = RGB_TO_Y_CCIR(r, g, b);
1862 u = RGB_TO_U_CCIR(r, g, b, 0);
1863 v = RGB_TO_V_CCIR(r, g, b, 0);
1864 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1868 /* now we can update the picture count */
1869 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1870 is->subpq_windex = 0;
1871 SDL_LockMutex(is->subpq_mutex);
1873 SDL_UnlockMutex(is->subpq_mutex);
1875 av_free_packet(pkt);
1881 /* copy samples for viewing in editor window */
1882 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1886 size = samples_size / sizeof(short);
1888 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1891 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1893 is->sample_array_index += len;
1894 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1895 is->sample_array_index = 0;
1900 /* return the new audio buffer size (samples can be added or deleted
1901 to get better sync if video or external master clock) */
1902 static int synchronize_audio(VideoState *is, short *samples,
1903 int samples_size1, double pts)
1905 int n, samples_size;
1908 n = 2 * is->audio_st->codec->channels;
1909 samples_size = samples_size1;
1911 /* if not master, then we try to remove or add samples to correct the clock */
1912 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1913 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1914 double diff, avg_diff;
1915 int wanted_size, min_size, max_size, nb_samples;
1917 ref_clock = get_master_clock(is);
1918 diff = get_audio_clock(is) - ref_clock;
1920 if (diff < AV_NOSYNC_THRESHOLD) {
1921 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1922 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1923 /* not enough measures to have a correct estimate */
1924 is->audio_diff_avg_count++;
1926 /* estimate the A-V difference */
1927 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1929 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1930 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1931 nb_samples = samples_size / n;
1933 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1934 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1935 if (wanted_size < min_size)
1936 wanted_size = min_size;
1937 else if (wanted_size > max_size)
1938 wanted_size = max_size;
1940 /* add or remove samples to correction the synchro */
1941 if (wanted_size < samples_size) {
1942 /* remove samples */
1943 samples_size = wanted_size;
1944 } else if (wanted_size > samples_size) {
1945 uint8_t *samples_end, *q;
1949 nb = (samples_size - wanted_size);
1950 samples_end = (uint8_t *)samples + samples_size - n;
1951 q = samples_end + n;
1953 memcpy(q, samples_end, n);
1957 samples_size = wanted_size;
1961 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1962 diff, avg_diff, samples_size - samples_size1,
1963 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1967 /* too big difference : may be initial PTS errors, so
1969 is->audio_diff_avg_count = 0;
1970 is->audio_diff_cum = 0;
1974 return samples_size;
1977 /* decode one audio frame and returns its uncompressed size */
1978 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1980 AVPacket *pkt_temp = &is->audio_pkt_temp;
1981 AVPacket *pkt = &is->audio_pkt;
1982 AVCodecContext *dec= is->audio_st->codec;
1983 int n, len1, data_size;
1987 /* NOTE: the audio packet can contain several frames */
1988 while (pkt_temp->size > 0) {
1989 data_size = sizeof(is->audio_buf1);
1990 len1 = avcodec_decode_audio3(dec,
1991 (int16_t *)is->audio_buf1, &data_size,
1994 /* if error, we skip the frame */
1999 pkt_temp->data += len1;
2000 pkt_temp->size -= len1;
2004 if (dec->sample_fmt != is->audio_src_fmt) {
2005 if (is->reformat_ctx)
2006 av_audio_convert_free(is->reformat_ctx);
2007 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2008 dec->sample_fmt, 1, NULL, 0);
2009 if (!is->reformat_ctx) {
2010 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2011 av_get_sample_fmt_name(dec->sample_fmt),
2012 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2015 is->audio_src_fmt= dec->sample_fmt;
2018 if (is->reformat_ctx) {
2019 const void *ibuf[6]= {is->audio_buf1};
2020 void *obuf[6]= {is->audio_buf2};
2021 int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2022 int ostride[6]= {2};
2023 int len= data_size/istride[0];
2024 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2025 printf("av_audio_convert() failed\n");
2028 is->audio_buf= is->audio_buf2;
2029 /* FIXME: existing code assume that data_size equals framesize*channels*2
2030 remove this legacy cruft */
2033 is->audio_buf= is->audio_buf1;
2036 /* if no pts, then compute it */
2037 pts = is->audio_clock;
2039 n = 2 * dec->channels;
2040 is->audio_clock += (double)data_size /
2041 (double)(n * dec->sample_rate);
2042 #if defined(DEBUG_SYNC)
2044 static double last_clock;
2045 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2046 is->audio_clock - last_clock,
2047 is->audio_clock, pts);
2048 last_clock = is->audio_clock;
2054 /* free the current packet */
2056 av_free_packet(pkt);
2058 if (is->paused || is->audioq.abort_request) {
2062 /* read next packet */
2063 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2065 if(pkt->data == flush_pkt.data){
2066 avcodec_flush_buffers(dec);
2070 pkt_temp->data = pkt->data;
2071 pkt_temp->size = pkt->size;
2073 /* if update the audio clock with the pts */
2074 if (pkt->pts != AV_NOPTS_VALUE) {
2075 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2080 /* prepare a new audio buffer */
2081 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2083 VideoState *is = opaque;
2084 int audio_size, len1;
2087 audio_callback_time = av_gettime();
2090 if (is->audio_buf_index >= is->audio_buf_size) {
2091 audio_size = audio_decode_frame(is, &pts);
2092 if (audio_size < 0) {
2093 /* if error, just output silence */
2094 is->audio_buf = is->audio_buf1;
2095 is->audio_buf_size = 1024;
2096 memset(is->audio_buf, 0, is->audio_buf_size);
2098 if (is->show_mode != SHOW_MODE_VIDEO)
2099 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2100 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2102 is->audio_buf_size = audio_size;
2104 is->audio_buf_index = 0;
2106 len1 = is->audio_buf_size - is->audio_buf_index;
2109 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2112 is->audio_buf_index += len1;
2116 /* open a given stream. Return 0 if OK */
2117 static int stream_component_open(VideoState *is, int stream_index)
2119 AVFormatContext *ic = is->ic;
2120 AVCodecContext *avctx;
2122 SDL_AudioSpec wanted_spec, spec;
2124 if (stream_index < 0 || stream_index >= ic->nb_streams)
2126 avctx = ic->streams[stream_index]->codec;
2128 /* prepare audio output */
2129 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2130 if (avctx->channels > 0) {
2131 avctx->request_channels = FFMIN(2, avctx->channels);
2133 avctx->request_channels = 2;
2137 codec = avcodec_find_decoder(avctx->codec_id);
2141 avctx->debug_mv = debug_mv;
2142 avctx->debug = debug;
2143 avctx->workaround_bugs = workaround_bugs;
2144 avctx->lowres = lowres;
2145 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2146 avctx->idct_algo= idct;
2147 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2148 avctx->skip_frame= skip_frame;
2149 avctx->skip_idct= skip_idct;
2150 avctx->skip_loop_filter= skip_loop_filter;
2151 avctx->error_recognition= error_recognition;
2152 avctx->error_concealment= error_concealment;
2153 avctx->thread_count= thread_count;
2155 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2157 if(codec->capabilities & CODEC_CAP_DR1)
2158 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2160 if (avcodec_open(avctx, codec) < 0)
2163 /* prepare audio output */
2164 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2165 wanted_spec.freq = avctx->sample_rate;
2166 wanted_spec.format = AUDIO_S16SYS;
2167 wanted_spec.channels = avctx->channels;
2168 wanted_spec.silence = 0;
2169 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2170 wanted_spec.callback = sdl_audio_callback;
2171 wanted_spec.userdata = is;
2172 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2173 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2176 is->audio_hw_buf_size = spec.size;
2177 is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2180 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2181 switch(avctx->codec_type) {
2182 case AVMEDIA_TYPE_AUDIO:
2183 is->audio_stream = stream_index;
2184 is->audio_st = ic->streams[stream_index];
2185 is->audio_buf_size = 0;
2186 is->audio_buf_index = 0;
2188 /* init averaging filter */
2189 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2190 is->audio_diff_avg_count = 0;
2191 /* since we do not have a precise anough audio fifo fullness,
2192 we correct audio sync only if larger than this threshold */
2193 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2195 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2196 packet_queue_init(&is->audioq);
2199 case AVMEDIA_TYPE_VIDEO:
2200 is->video_stream = stream_index;
2201 is->video_st = ic->streams[stream_index];
2203 packet_queue_init(&is->videoq);
2204 is->video_tid = SDL_CreateThread(video_thread, is);
2206 case AVMEDIA_TYPE_SUBTITLE:
2207 is->subtitle_stream = stream_index;
2208 is->subtitle_st = ic->streams[stream_index];
2209 packet_queue_init(&is->subtitleq);
2211 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2219 static void stream_component_close(VideoState *is, int stream_index)
2221 AVFormatContext *ic = is->ic;
2222 AVCodecContext *avctx;
2224 if (stream_index < 0 || stream_index >= ic->nb_streams)
2226 avctx = ic->streams[stream_index]->codec;
2228 switch(avctx->codec_type) {
2229 case AVMEDIA_TYPE_AUDIO:
2230 packet_queue_abort(&is->audioq);
2234 packet_queue_end(&is->audioq);
2235 if (is->reformat_ctx)
2236 av_audio_convert_free(is->reformat_ctx);
2237 is->reformat_ctx = NULL;
2239 case AVMEDIA_TYPE_VIDEO:
2240 packet_queue_abort(&is->videoq);
2242 /* note: we also signal this mutex to make sure we deblock the
2243 video thread in all cases */
2244 SDL_LockMutex(is->pictq_mutex);
2245 SDL_CondSignal(is->pictq_cond);
2246 SDL_UnlockMutex(is->pictq_mutex);
2248 SDL_WaitThread(is->video_tid, NULL);
2250 packet_queue_end(&is->videoq);
2252 case AVMEDIA_TYPE_SUBTITLE:
2253 packet_queue_abort(&is->subtitleq);
2255 /* note: we also signal this mutex to make sure we deblock the
2256 video thread in all cases */
2257 SDL_LockMutex(is->subpq_mutex);
2258 is->subtitle_stream_changed = 1;
2260 SDL_CondSignal(is->subpq_cond);
2261 SDL_UnlockMutex(is->subpq_mutex);
2263 SDL_WaitThread(is->subtitle_tid, NULL);
2265 packet_queue_end(&is->subtitleq);
2271 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2272 avcodec_close(avctx);
2273 switch(avctx->codec_type) {
2274 case AVMEDIA_TYPE_AUDIO:
2275 is->audio_st = NULL;
2276 is->audio_stream = -1;
2278 case AVMEDIA_TYPE_VIDEO:
2279 is->video_st = NULL;
2280 is->video_stream = -1;
2282 case AVMEDIA_TYPE_SUBTITLE:
2283 is->subtitle_st = NULL;
2284 is->subtitle_stream = -1;
2291 /* since we have only one decoding thread, we can use a global
2292 variable instead of a thread local variable */
2293 static VideoState *global_video_state;
2295 static int decode_interrupt_cb(void)
2297 return (global_video_state && global_video_state->abort_request);
2300 /* this thread gets the stream from the disk or the network */
2301 static int read_thread(void *arg)
2303 VideoState *is = arg;
2304 AVFormatContext *ic;
2306 int st_index[AVMEDIA_TYPE_NB];
2307 AVPacket pkt1, *pkt = &pkt1;
2308 AVFormatParameters params, *ap = ¶ms;
2310 int pkt_in_play_range = 0;
2312 ic = avformat_alloc_context();
2314 memset(st_index, -1, sizeof(st_index));
2315 is->video_stream = -1;
2316 is->audio_stream = -1;
2317 is->subtitle_stream = -1;
2319 global_video_state = is;
2320 avio_set_interrupt_cb(decode_interrupt_cb);
2322 memset(ap, 0, sizeof(*ap));
2324 ap->prealloced_context = 1;
2325 ap->width = frame_width;
2326 ap->height= frame_height;
2327 ap->time_base= (AVRational){1, 25};
2328 ap->pix_fmt = frame_pix_fmt;
2329 ic->flags |= AVFMT_FLAG_PRIV_OPT;
2332 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2334 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2335 err = av_demuxer_open(ic, ap);
2337 avformat_free_context(ic);
2342 print_error(is->filename, err);
2349 ic->flags |= AVFMT_FLAG_GENPTS;
2351 err = av_find_stream_info(ic);
2353 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2358 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2361 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2363 /* if seeking requested, we execute it */
2364 if (start_time != AV_NOPTS_VALUE) {
2367 timestamp = start_time;
2368 /* add the stream start time */
2369 if (ic->start_time != AV_NOPTS_VALUE)
2370 timestamp += ic->start_time;
2371 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2373 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2374 is->filename, (double)timestamp / AV_TIME_BASE);
2378 for (i = 0; i < ic->nb_streams; i++)
2379 ic->streams[i]->discard = AVDISCARD_ALL;
2381 st_index[AVMEDIA_TYPE_VIDEO] =
2382 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2383 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2385 st_index[AVMEDIA_TYPE_AUDIO] =
2386 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2387 wanted_stream[AVMEDIA_TYPE_AUDIO],
2388 st_index[AVMEDIA_TYPE_VIDEO],
2391 st_index[AVMEDIA_TYPE_SUBTITLE] =
2392 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2393 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2394 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2395 st_index[AVMEDIA_TYPE_AUDIO] :
2396 st_index[AVMEDIA_TYPE_VIDEO]),
2399 av_dump_format(ic, 0, is->filename, 0);
2402 is->show_mode = show_mode;
2404 /* open the streams */
2405 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2406 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2410 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2411 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2413 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2414 if (is->show_mode == SHOW_MODE_NONE)
2415 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2417 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2418 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2421 if (is->video_stream < 0 && is->audio_stream < 0) {
2422 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2428 if (is->abort_request)
2430 if (is->paused != is->last_paused) {
2431 is->last_paused = is->paused;
2433 is->read_pause_return= av_read_pause(ic);
2437 #if CONFIG_RTSP_DEMUXER
2438 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2439 /* wait 10 ms to avoid trying to get another packet */
2446 int64_t seek_target= is->seek_pos;
2447 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2448 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2449 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2450 // of the seek_pos/seek_rel variables
2452 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2454 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2456 if (is->audio_stream >= 0) {
2457 packet_queue_flush(&is->audioq);
2458 packet_queue_put(&is->audioq, &flush_pkt);
2460 if (is->subtitle_stream >= 0) {
2461 packet_queue_flush(&is->subtitleq);
2462 packet_queue_put(&is->subtitleq, &flush_pkt);
2464 if (is->video_stream >= 0) {
2465 packet_queue_flush(&is->videoq);
2466 packet_queue_put(&is->videoq, &flush_pkt);
2473 /* if the queue are full, no need to read more */
2474 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2475 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2476 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2477 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2483 if(is->video_stream >= 0){
2484 av_init_packet(pkt);
2487 pkt->stream_index= is->video_stream;
2488 packet_queue_put(&is->videoq, pkt);
2491 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2492 if(loop!=1 && (!loop || --loop)){
2493 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2502 ret = av_read_frame(ic, pkt);
2504 if (ret == AVERROR_EOF || url_feof(ic->pb))
2506 if (ic->pb && ic->pb->error)
2508 SDL_Delay(100); /* wait for user event */
2511 /* check if packet is in play range specified by user, then queue, otherwise discard */
2512 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2513 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2514 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2515 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2516 <= ((double)duration/1000000);
2517 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2518 packet_queue_put(&is->audioq, pkt);
2519 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2520 packet_queue_put(&is->videoq, pkt);
2521 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2522 packet_queue_put(&is->subtitleq, pkt);
2524 av_free_packet(pkt);
2527 /* wait until the end */
2528 while (!is->abort_request) {
2534 /* disable interrupting */
2535 global_video_state = NULL;
2537 /* close each stream */
2538 if (is->audio_stream >= 0)
2539 stream_component_close(is, is->audio_stream);
2540 if (is->video_stream >= 0)
2541 stream_component_close(is, is->video_stream);
2542 if (is->subtitle_stream >= 0)
2543 stream_component_close(is, is->subtitle_stream);
2545 av_close_input_file(is->ic);
2546 is->ic = NULL; /* safety */
2548 avio_set_interrupt_cb(NULL);
2553 event.type = FF_QUIT_EVENT;
2554 event.user.data1 = is;
2555 SDL_PushEvent(&event);
2560 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2564 is = av_mallocz(sizeof(VideoState));
2567 av_strlcpy(is->filename, filename, sizeof(is->filename));
2568 is->iformat = iformat;
2572 /* start video display */
2573 is->pictq_mutex = SDL_CreateMutex();
2574 is->pictq_cond = SDL_CreateCond();
2576 is->subpq_mutex = SDL_CreateMutex();
2577 is->subpq_cond = SDL_CreateCond();
2579 is->av_sync_type = av_sync_type;
2580 is->read_tid = SDL_CreateThread(read_thread, is);
2581 if (!is->read_tid) {
2588 static void stream_cycle_channel(VideoState *is, int codec_type)
2590 AVFormatContext *ic = is->ic;
2591 int start_index, stream_index;
2594 if (codec_type == AVMEDIA_TYPE_VIDEO)
2595 start_index = is->video_stream;
2596 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2597 start_index = is->audio_stream;
2599 start_index = is->subtitle_stream;
2600 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2602 stream_index = start_index;
2604 if (++stream_index >= is->ic->nb_streams)
2606 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2613 if (stream_index == start_index)
2615 st = ic->streams[stream_index];
2616 if (st->codec->codec_type == codec_type) {
2617 /* check that parameters are OK */
2618 switch(codec_type) {
2619 case AVMEDIA_TYPE_AUDIO:
2620 if (st->codec->sample_rate != 0 &&
2621 st->codec->channels != 0)
2624 case AVMEDIA_TYPE_VIDEO:
2625 case AVMEDIA_TYPE_SUBTITLE:
2633 stream_component_close(is, start_index);
2634 stream_component_open(is, stream_index);
2638 static void toggle_full_screen(void)
2640 is_full_screen = !is_full_screen;
2641 video_open(cur_stream);
2644 static void toggle_pause(void)
2647 stream_toggle_pause(cur_stream);
2651 static void step_to_next_frame(void)
2654 /* if the stream is paused unpause it, then step */
2655 if (cur_stream->paused)
2656 stream_toggle_pause(cur_stream);
2661 static void toggle_audio_display(void)
2664 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2665 cur_stream->show_mode = (cur_stream->show_mode + 1) % SHOW_MODE_NB;
2666 fill_rectangle(screen,
2667 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2669 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2673 /* handle an event sent by the GUI */
2674 static void event_loop(void)
2677 double incr, pos, frac;
2681 SDL_WaitEvent(&event);
2682 switch(event.type) {
2684 if (exit_on_keydown) {
2688 switch(event.key.keysym.sym) {
2694 toggle_full_screen();
2700 case SDLK_s: //S: Step to next frame
2701 step_to_next_frame();
2705 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2709 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2713 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2716 toggle_audio_display();
2731 if (seek_by_bytes) {
2732 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2733 pos= cur_stream->video_current_pos;
2734 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2735 pos= cur_stream->audio_pkt.pos;
2737 pos = avio_tell(cur_stream->ic->pb);
2738 if (cur_stream->ic->bit_rate)
2739 incr *= cur_stream->ic->bit_rate / 8.0;
2743 stream_seek(cur_stream, pos, incr, 1);
2745 pos = get_master_clock(cur_stream);
2747 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2755 case SDL_MOUSEBUTTONDOWN:
2756 if (exit_on_mousedown) {
2760 case SDL_MOUSEMOTION:
2761 if(event.type ==SDL_MOUSEBUTTONDOWN){
2764 if(event.motion.state != SDL_PRESSED)
2769 if(seek_by_bytes || cur_stream->ic->duration<=0){
2770 uint64_t size= avio_size(cur_stream->ic->pb);
2771 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2775 int tns, thh, tmm, tss;
2776 tns = cur_stream->ic->duration/1000000LL;
2778 tmm = (tns%3600)/60;
2780 frac = x/cur_stream->width;
2785 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2786 hh, mm, ss, thh, tmm, tss);
2787 ts = frac*cur_stream->ic->duration;
2788 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2789 ts += cur_stream->ic->start_time;
2790 stream_seek(cur_stream, ts, 0, 0);
2794 case SDL_VIDEORESIZE:
2796 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2797 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2798 screen_width = cur_stream->width = event.resize.w;
2799 screen_height= cur_stream->height= event.resize.h;
2806 case FF_ALLOC_EVENT:
2807 video_open(event.user.data1);
2808 alloc_picture(event.user.data1);
2810 case FF_REFRESH_EVENT:
2811 video_refresh(event.user.data1);
2812 cur_stream->refresh=0;
2820 static int opt_frame_size(const char *opt, const char *arg)
2822 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2823 fprintf(stderr, "Incorrect frame size\n");
2824 return AVERROR(EINVAL);
2826 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2827 fprintf(stderr, "Frame size must be a multiple of 2\n");
2828 return AVERROR(EINVAL);
2833 static int opt_width(const char *opt, const char *arg)
2835 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2839 static int opt_height(const char *opt, const char *arg)
2841 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2845 static int opt_format(const char *opt, const char *arg)
2847 file_iformat = av_find_input_format(arg);
2848 if (!file_iformat) {
2849 fprintf(stderr, "Unknown input format: %s\n", arg);
2850 return AVERROR(EINVAL);
2855 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2857 frame_pix_fmt = av_get_pix_fmt(arg);
2861 static int opt_sync(const char *opt, const char *arg)
2863 if (!strcmp(arg, "audio"))
2864 av_sync_type = AV_SYNC_AUDIO_MASTER;
2865 else if (!strcmp(arg, "video"))
2866 av_sync_type = AV_SYNC_VIDEO_MASTER;
2867 else if (!strcmp(arg, "ext"))
2868 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2870 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2876 static int opt_seek(const char *opt, const char *arg)
2878 start_time = parse_time_or_die(opt, arg, 1);
2882 static int opt_duration(const char *opt, const char *arg)
2884 duration = parse_time_or_die(opt, arg, 1);
2888 static int opt_debug(const char *opt, const char *arg)
2890 av_log_set_level(99);
2891 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2895 static int opt_vismv(const char *opt, const char *arg)
2897 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2901 static int opt_thread_count(const char *opt, const char *arg)
2903 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2905 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2910 static int opt_show_mode(const char *opt, const char *arg)
2912 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
2913 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
2914 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
2915 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
2919 static const OptionDef options[] = {
2920 #include "cmdutils_common_opts.h"
2921 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2922 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2923 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2924 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2925 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2926 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2927 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2928 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2929 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2930 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2931 { "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
2932 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2933 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2934 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2935 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2936 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2937 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2938 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2939 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2940 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2941 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2942 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2943 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2944 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2945 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2946 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2947 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2948 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2949 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2950 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2951 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2952 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
2953 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
2954 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
2955 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
2956 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
2957 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
2959 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
2961 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
2962 { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
2963 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2964 { "i", OPT_DUMMY, {NULL}, "ffmpeg compatibility dummy option", ""},
2968 static void show_usage(void)
2970 printf("Simple media player\n");
2971 printf("usage: ffplay [options] input_file\n");
2975 static void show_help(void)
2977 av_log_set_callback(log_callback_help);
2979 show_help_options(options, "Main options:\n",
2981 show_help_options(options, "\nAdvanced options:\n",
2982 OPT_EXPERT, OPT_EXPERT);
2984 av_opt_show2(avcodec_opts[0], NULL,
2985 AV_OPT_FLAG_DECODING_PARAM, 0);
2987 av_opt_show2(avformat_opts, NULL,
2988 AV_OPT_FLAG_DECODING_PARAM, 0);
2989 #if !CONFIG_AVFILTER
2991 av_opt_show2(sws_opts, NULL,
2992 AV_OPT_FLAG_ENCODING_PARAM, 0);
2994 printf("\nWhile playing:\n"
2996 "f toggle full screen\n"
2998 "a cycle audio channel\n"
2999 "v cycle video channel\n"
3000 "t cycle subtitle channel\n"
3001 "w show audio waves\n"
3002 "s activate frame-step mode\n"
3003 "left/right seek backward/forward 10 seconds\n"
3004 "down/up seek backward/forward 1 minute\n"
3005 "mouse click seek to percentage in file corresponding to fraction of width\n"
3009 static void opt_input_file(const char *filename)
3011 if (input_filename) {
3012 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3013 filename, input_filename);
3016 if (!strcmp(filename, "-"))
3018 input_filename = filename;
3021 /* Called from the main */
3022 int main(int argc, char **argv)
3026 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3028 /* register all codecs, demux and protocols */
3029 avcodec_register_all();
3031 avdevice_register_all();
3034 avfilter_register_all();
3042 parse_options(argc, argv, options, opt_input_file);
3044 if (!input_filename) {
3046 fprintf(stderr, "An input file must be specified\n");
3047 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3051 if (display_disable) {
3054 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3055 #if !defined(__MINGW32__) && !defined(__APPLE__)
3056 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3058 if (SDL_Init (flags)) {
3059 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3063 if (!display_disable) {
3064 #if HAVE_SDL_VIDEO_SIZE
3065 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3066 fs_screen_width = vi->current_w;
3067 fs_screen_height = vi->current_h;
3071 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3072 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3073 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3075 av_init_packet(&flush_pkt);
3076 flush_pkt.data= "FLUSH";
3078 cur_stream = stream_open(input_filename, file_iformat);