2 * avplay : Simple Media Player based on the Libav libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/avstring.h"
27 #include "libavutil/colorspace.h"
28 #include "libavutil/mathematics.h"
29 #include "libavutil/pixdesc.h"
30 #include "libavutil/imgutils.h"
31 #include "libavutil/dict.h"
32 #include "libavutil/parseutils.h"
33 #include "libavutil/samplefmt.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/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[] = "avplay";
59 const int program_birth_year = 2003;
61 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
62 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
65 /* SDL audio buffer size, in samples. Should be small to have precise
66 A/V sync as SDL does not have hardware buffer fullness info. */
67 #define SDL_AUDIO_BUFFER_SIZE 1024
69 /* no AV sync correction is done if below the AV sync threshold */
70 #define AV_SYNC_THRESHOLD 0.01
71 /* no AV correction is done if too big error */
72 #define AV_NOSYNC_THRESHOLD 10.0
74 #define FRAME_SKIP_FACTOR 0.05
76 /* maximum audio speed change to get correct sync */
77 #define SAMPLE_CORRECTION_PERCENT_MAX 10
79 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
80 #define AUDIO_DIFF_AVG_NB 20
82 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
83 #define SAMPLE_ARRAY_SIZE (2*65536)
85 static int sws_flags = SWS_BICUBIC;
87 typedef struct PacketQueue {
88 AVPacketList *first_pkt, *last_pkt;
96 #define VIDEO_PICTURE_QUEUE_SIZE 2
97 #define SUBPICTURE_QUEUE_SIZE 4
99 typedef struct VideoPicture {
100 double pts; ///<presentation time stamp for this picture
101 double target_clock; ///<av_gettime() time at which this should be displayed ideally
102 int64_t pos; ///<byte position in file
104 int width, height; /* source height & width */
107 enum PixelFormat pix_fmt;
110 AVFilterBufferRef *picref;
114 typedef struct SubPicture {
115 double pts; /* presentation time stamp for this picture */
120 AV_SYNC_AUDIO_MASTER, /* default choice */
121 AV_SYNC_VIDEO_MASTER,
122 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
125 typedef struct VideoState {
126 SDL_Thread *parse_tid;
127 SDL_Thread *video_tid;
128 SDL_Thread *refresh_tid;
129 AVInputFormat *iformat;
138 int read_pause_return;
140 int dtg_active_format;
145 double external_clock; /* external clock base */
146 int64_t external_clock_time;
149 double audio_diff_cum; /* used for AV difference average computation */
150 double audio_diff_avg_coef;
151 double audio_diff_threshold;
152 int audio_diff_avg_count;
155 int audio_hw_buf_size;
156 /* samples output by the codec. we reserve more space for avsync
158 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
159 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
161 unsigned int audio_buf_size; /* in bytes */
162 int audio_buf_index; /* in bytes */
163 AVPacket audio_pkt_temp;
165 enum AVSampleFormat audio_src_fmt;
166 AVAudioConvert *reformat_ctx;
168 int show_audio; /* if true, display audio samples */
169 int16_t sample_array[SAMPLE_ARRAY_SIZE];
170 int sample_array_index;
174 FFTSample *rdft_data;
177 SDL_Thread *subtitle_tid;
179 int subtitle_stream_changed;
180 AVStream *subtitle_st;
181 PacketQueue subtitleq;
182 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
183 int subpq_size, subpq_rindex, subpq_windex;
184 SDL_mutex *subpq_mutex;
185 SDL_cond *subpq_cond;
188 double frame_last_pts;
189 double frame_last_delay;
190 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
194 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
195 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
196 int64_t video_current_pos; ///<current displayed file pos
197 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
198 int pictq_size, pictq_rindex, pictq_windex;
199 SDL_mutex *pictq_mutex;
200 SDL_cond *pictq_cond;
202 struct SwsContext *img_convert_ctx;
205 // QETimer *video_timer;
207 int width, height, xleft, ytop;
209 PtsCorrectionContext pts_ctx;
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 audio_disable;
231 static int video_disable;
232 static int wanted_stream[AVMEDIA_TYPE_NB]={
233 [AVMEDIA_TYPE_AUDIO]=-1,
234 [AVMEDIA_TYPE_VIDEO]=-1,
235 [AVMEDIA_TYPE_SUBTITLE]=-1,
237 static int seek_by_bytes=-1;
238 static int display_disable;
239 static int show_status = 1;
240 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
241 static int64_t start_time = AV_NOPTS_VALUE;
242 static int64_t duration = AV_NOPTS_VALUE;
243 static int debug = 0;
244 static int debug_mv = 0;
246 static int thread_count = 1;
247 static int workaround_bugs = 1;
249 static int genpts = 0;
250 static int lowres = 0;
251 static int idct = FF_IDCT_AUTO;
252 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
253 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
254 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
255 static int error_recognition = FF_ER_CAREFUL;
256 static int error_concealment = 3;
257 static int decoder_reorder_pts= -1;
259 static int exit_on_keydown;
260 static int exit_on_mousedown;
262 static int framedrop=1;
264 static int rdftspeed=20;
266 static char *vfilters = NULL;
269 /* current context */
270 static int is_full_screen;
271 static VideoState *cur_stream;
272 static int64_t audio_callback_time;
274 static AVPacket flush_pkt;
276 #define FF_ALLOC_EVENT (SDL_USEREVENT)
277 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
278 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
280 static SDL_Surface *screen;
282 void exit_program(int ret)
287 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
289 /* packet queue handling */
290 static void packet_queue_init(PacketQueue *q)
292 memset(q, 0, sizeof(PacketQueue));
293 q->mutex = SDL_CreateMutex();
294 q->cond = SDL_CreateCond();
295 packet_queue_put(q, &flush_pkt);
298 static void packet_queue_flush(PacketQueue *q)
300 AVPacketList *pkt, *pkt1;
302 SDL_LockMutex(q->mutex);
303 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
305 av_free_packet(&pkt->pkt);
312 SDL_UnlockMutex(q->mutex);
315 static void packet_queue_end(PacketQueue *q)
317 packet_queue_flush(q);
318 SDL_DestroyMutex(q->mutex);
319 SDL_DestroyCond(q->cond);
322 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
326 /* duplicate the packet */
327 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
330 pkt1 = av_malloc(sizeof(AVPacketList));
337 SDL_LockMutex(q->mutex);
343 q->last_pkt->next = pkt1;
346 q->size += pkt1->pkt.size + sizeof(*pkt1);
347 /* XXX: should duplicate packet data in DV case */
348 SDL_CondSignal(q->cond);
350 SDL_UnlockMutex(q->mutex);
354 static void packet_queue_abort(PacketQueue *q)
356 SDL_LockMutex(q->mutex);
358 q->abort_request = 1;
360 SDL_CondSignal(q->cond);
362 SDL_UnlockMutex(q->mutex);
365 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
366 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
371 SDL_LockMutex(q->mutex);
374 if (q->abort_request) {
381 q->first_pkt = pkt1->next;
385 q->size -= pkt1->pkt.size + sizeof(*pkt1);
394 SDL_CondWait(q->cond, q->mutex);
397 SDL_UnlockMutex(q->mutex);
401 static inline void fill_rectangle(SDL_Surface *screen,
402 int x, int y, int w, int h, int color)
409 SDL_FillRect(screen, &rect, color);
412 #define ALPHA_BLEND(a, oldp, newp, s)\
413 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
415 #define RGBA_IN(r, g, b, a, s)\
417 unsigned int v = ((const uint32_t *)(s))[0];\
418 a = (v >> 24) & 0xff;\
419 r = (v >> 16) & 0xff;\
420 g = (v >> 8) & 0xff;\
424 #define YUVA_IN(y, u, v, a, s, pal)\
426 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
427 a = (val >> 24) & 0xff;\
428 y = (val >> 16) & 0xff;\
429 u = (val >> 8) & 0xff;\
433 #define YUVA_OUT(d, y, u, v, a)\
435 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
441 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
443 int wrap, wrap3, width2, skip2;
444 int y, u, v, a, u1, v1, a1, w, h;
445 uint8_t *lum, *cb, *cr;
448 int dstx, dsty, dstw, dsth;
450 dstw = av_clip(rect->w, 0, imgw);
451 dsth = av_clip(rect->h, 0, imgh);
452 dstx = av_clip(rect->x, 0, imgw - dstw);
453 dsty = av_clip(rect->y, 0, imgh - dsth);
454 lum = dst->data[0] + dsty * dst->linesize[0];
455 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
456 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
458 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
460 wrap = dst->linesize[0];
461 wrap3 = rect->pict.linesize[0];
462 p = rect->pict.data[0];
463 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
471 YUVA_IN(y, u, v, a, p, pal);
472 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
473 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
474 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
480 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
481 YUVA_IN(y, u, v, a, p, pal);
485 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
487 YUVA_IN(y, u, v, a, p + BPP, pal);
491 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
492 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
493 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
500 YUVA_IN(y, u, v, a, p, pal);
501 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
502 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
503 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
507 p += wrap3 - dstw * BPP;
508 lum += wrap - dstw - dstx;
509 cb += dst->linesize[1] - width2 - skip2;
510 cr += dst->linesize[2] - width2 - skip2;
512 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
518 YUVA_IN(y, u, v, a, p, pal);
522 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
525 YUVA_IN(y, u, v, a, p, pal);
529 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
530 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
531 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
537 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
538 YUVA_IN(y, u, v, a, p, pal);
542 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
544 YUVA_IN(y, u, v, a, p + BPP, pal);
548 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
552 YUVA_IN(y, u, v, a, p, pal);
556 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
558 YUVA_IN(y, u, v, a, p + BPP, pal);
562 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
564 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
565 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
569 p += -wrap3 + 2 * BPP;
573 YUVA_IN(y, u, v, a, p, pal);
577 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
580 YUVA_IN(y, u, v, a, p, pal);
584 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
585 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
586 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
592 p += wrap3 + (wrap3 - dstw * BPP);
593 lum += wrap + (wrap - dstw - dstx);
594 cb += dst->linesize[1] - width2 - skip2;
595 cr += dst->linesize[2] - width2 - skip2;
597 /* handle odd height */
604 YUVA_IN(y, u, v, a, p, pal);
605 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
606 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
607 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
613 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
614 YUVA_IN(y, u, v, a, p, pal);
618 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
620 YUVA_IN(y, u, v, a, p + BPP, pal);
624 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
625 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
626 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
633 YUVA_IN(y, u, v, a, p, pal);
634 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
635 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
636 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
641 static void free_subpicture(SubPicture *sp)
643 avsubtitle_free(&sp->sub);
646 static void video_image_display(VideoState *is)
652 int width, height, x, y;
656 vp = &is->pictq[is->pictq_rindex];
659 if (vp->picref->video->pixel_aspect.num == 0)
662 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
665 /* XXX: use variable in the frame */
666 if (is->video_st->sample_aspect_ratio.num)
667 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
668 else if (is->video_st->codec->sample_aspect_ratio.num)
669 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
673 if (aspect_ratio <= 0.0)
675 aspect_ratio *= (float)vp->width / (float)vp->height;
679 if (is->subpq_size > 0)
681 sp = &is->subpq[is->subpq_rindex];
683 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
685 SDL_LockYUVOverlay (vp->bmp);
687 pict.data[0] = vp->bmp->pixels[0];
688 pict.data[1] = vp->bmp->pixels[2];
689 pict.data[2] = vp->bmp->pixels[1];
691 pict.linesize[0] = vp->bmp->pitches[0];
692 pict.linesize[1] = vp->bmp->pitches[2];
693 pict.linesize[2] = vp->bmp->pitches[1];
695 for (i = 0; i < sp->sub.num_rects; i++)
696 blend_subrect(&pict, sp->sub.rects[i],
697 vp->bmp->w, vp->bmp->h);
699 SDL_UnlockYUVOverlay (vp->bmp);
705 /* XXX: we suppose the screen has a 1.0 pixel ratio */
707 width = ((int)rint(height * aspect_ratio)) & ~1;
708 if (width > is->width) {
710 height = ((int)rint(width / aspect_ratio)) & ~1;
712 x = (is->width - width) / 2;
713 y = (is->height - height) / 2;
714 is->no_background = 0;
715 rect.x = is->xleft + x;
716 rect.y = is->ytop + y;
719 SDL_DisplayYUVOverlay(vp->bmp, &rect);
723 /* get the current audio output buffer size, in samples. With SDL, we
724 cannot have a precise information */
725 static int audio_write_get_buf_size(VideoState *is)
727 return is->audio_buf_size - is->audio_buf_index;
730 static inline int compute_mod(int a, int b)
739 static void video_audio_display(VideoState *s)
741 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
742 int ch, channels, h, h2, bgcolor, fgcolor;
744 int rdft_bits, nb_freq;
746 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
748 nb_freq= 1<<(rdft_bits-1);
750 /* compute display index : center on currently output samples */
751 channels = s->audio_st->codec->channels;
752 nb_display_channels = channels;
754 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
756 delay = audio_write_get_buf_size(s);
759 /* to be more precise, we take into account the time spent since
760 the last buffer computation */
761 if (audio_callback_time) {
762 time_diff = av_gettime() - audio_callback_time;
763 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
766 delay += 2*data_used;
767 if (delay < data_used)
770 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
771 if(s->show_audio==1){
773 for(i=0; i<1000; i+=channels){
774 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
775 int a= s->sample_array[idx];
776 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
777 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
778 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
780 if(h<score && (b^c)<0){
787 s->last_i_start = i_start;
789 i_start = s->last_i_start;
792 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
793 if(s->show_audio==1){
794 fill_rectangle(screen,
795 s->xleft, s->ytop, s->width, s->height,
798 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
800 /* total height for one channel */
801 h = s->height / nb_display_channels;
802 /* graph height / 2 */
804 for(ch = 0;ch < nb_display_channels; ch++) {
806 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
807 for(x = 0; x < s->width; x++) {
808 y = (s->sample_array[i] * h2) >> 15;
815 fill_rectangle(screen,
816 s->xleft + x, ys, 1, y,
819 if (i >= SAMPLE_ARRAY_SIZE)
820 i -= SAMPLE_ARRAY_SIZE;
824 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
826 for(ch = 1;ch < nb_display_channels; ch++) {
827 y = s->ytop + ch * h;
828 fill_rectangle(screen,
829 s->xleft, y, s->width, 1,
832 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
834 nb_display_channels= FFMIN(nb_display_channels, 2);
835 if(rdft_bits != s->rdft_bits){
836 av_rdft_end(s->rdft);
837 av_free(s->rdft_data);
838 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
839 s->rdft_bits= rdft_bits;
840 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
844 for(ch = 0;ch < nb_display_channels; ch++) {
845 data[ch] = s->rdft_data + 2*nb_freq*ch;
847 for(x = 0; x < 2*nb_freq; x++) {
848 double w= (x-nb_freq)*(1.0/nb_freq);
849 data[ch][x]= s->sample_array[i]*(1.0-w*w);
851 if (i >= SAMPLE_ARRAY_SIZE)
852 i -= SAMPLE_ARRAY_SIZE;
854 av_rdft_calc(s->rdft, data[ch]);
856 //least efficient way to do this, we should of course directly access it but its more than fast enough
857 for(y=0; y<s->height; y++){
858 double w= 1/sqrt(nb_freq);
859 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]));
860 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
861 + data[1][2*y+1]*data[1][2*y+1])) : a;
864 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
866 fill_rectangle(screen,
867 s->xpos, s->height-y, 1, 1,
871 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
873 if(s->xpos >= s->width)
878 static int video_open(VideoState *is){
879 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
882 if(is_full_screen) flags |= SDL_FULLSCREEN;
883 else flags |= SDL_RESIZABLE;
885 if (is_full_screen && fs_screen_width) {
887 h = fs_screen_height;
888 } else if(!is_full_screen && screen_width){
892 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
893 w = is->out_video_filter->inputs[0]->w;
894 h = is->out_video_filter->inputs[0]->h;
896 }else if (is->video_st && is->video_st->codec->width){
897 w = is->video_st->codec->width;
898 h = is->video_st->codec->height;
904 if(screen && is->width == screen->w && screen->w == w
905 && is->height== screen->h && screen->h == h)
908 #if defined(__APPLE__) && !SDL_VERSION_ATLEAST(1, 2, 14)
909 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X and older SDL */
910 screen = SDL_SetVideoMode(w, h, 24, flags);
912 screen = SDL_SetVideoMode(w, h, 0, flags);
915 fprintf(stderr, "SDL: could not set video mode - exiting\n");
919 window_title = input_filename;
920 SDL_WM_SetCaption(window_title, window_title);
922 is->width = screen->w;
923 is->height = screen->h;
928 /* display the current picture, if any */
929 static void video_display(VideoState *is)
932 video_open(cur_stream);
933 if (is->audio_st && is->show_audio)
934 video_audio_display(is);
935 else if (is->video_st)
936 video_image_display(is);
939 static int refresh_thread(void *opaque)
941 VideoState *is= opaque;
942 while(!is->abort_request){
944 event.type = FF_REFRESH_EVENT;
945 event.user.data1 = opaque;
948 SDL_PushEvent(&event);
950 usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
955 /* get the current audio clock value */
956 static double get_audio_clock(VideoState *is)
959 int hw_buf_size, bytes_per_sec;
960 pts = is->audio_clock;
961 hw_buf_size = audio_write_get_buf_size(is);
964 bytes_per_sec = is->audio_st->codec->sample_rate *
965 2 * is->audio_st->codec->channels;
968 pts -= (double)hw_buf_size / bytes_per_sec;
972 /* get the current video clock value */
973 static double get_video_clock(VideoState *is)
976 return is->video_current_pts;
978 return is->video_current_pts_drift + av_gettime() / 1000000.0;
982 /* get the current external clock value */
983 static double get_external_clock(VideoState *is)
987 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
990 /* get the current master clock value */
991 static double get_master_clock(VideoState *is)
995 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
997 val = get_video_clock(is);
999 val = get_audio_clock(is);
1000 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1002 val = get_audio_clock(is);
1004 val = get_video_clock(is);
1006 val = get_external_clock(is);
1011 /* seek in the stream */
1012 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1014 if (!is->seek_req) {
1017 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1019 is->seek_flags |= AVSEEK_FLAG_BYTE;
1024 /* pause or resume the video */
1025 static void stream_pause(VideoState *is)
1028 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1029 if(is->read_pause_return != AVERROR(ENOSYS)){
1030 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1032 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1034 is->paused = !is->paused;
1037 static double compute_target_time(double frame_current_pts, VideoState *is)
1039 double delay, sync_threshold, diff;
1041 /* compute nominal delay */
1042 delay = frame_current_pts - is->frame_last_pts;
1043 if (delay <= 0 || delay >= 10.0) {
1044 /* if incorrect delay, use previous one */
1045 delay = is->frame_last_delay;
1047 is->frame_last_delay = delay;
1049 is->frame_last_pts = frame_current_pts;
1051 /* update delay to follow master synchronisation source */
1052 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1053 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1054 /* if video is slave, we try to correct big delays by
1055 duplicating or deleting a frame */
1056 diff = get_video_clock(is) - get_master_clock(is);
1058 /* skip or repeat frame. We take into account the
1059 delay to compute the threshold. I still don't know
1060 if it is the best guess */
1061 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1062 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1063 if (diff <= -sync_threshold)
1065 else if (diff >= sync_threshold)
1069 is->frame_timer += delay;
1071 av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1072 delay, frame_current_pts, -diff);
1074 return is->frame_timer;
1077 /* called to display each frame */
1078 static void video_refresh_timer(void *opaque)
1080 VideoState *is = opaque;
1083 SubPicture *sp, *sp2;
1087 if (is->pictq_size == 0) {
1088 //nothing to do, no picture to display in the que
1090 double time= av_gettime()/1000000.0;
1092 /* dequeue the picture */
1093 vp = &is->pictq[is->pictq_rindex];
1095 if(time < vp->target_clock)
1097 /* update current video pts */
1098 is->video_current_pts = vp->pts;
1099 is->video_current_pts_drift = is->video_current_pts - time;
1100 is->video_current_pos = vp->pos;
1101 if(is->pictq_size > 1){
1102 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1103 assert(nextvp->target_clock >= vp->target_clock);
1104 next_target= nextvp->target_clock;
1106 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1108 if(framedrop && time > next_target){
1109 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1110 if(is->pictq_size > 1 || time > next_target + 0.5){
1111 /* update queue size and signal for next picture */
1112 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1113 is->pictq_rindex = 0;
1115 SDL_LockMutex(is->pictq_mutex);
1117 SDL_CondSignal(is->pictq_cond);
1118 SDL_UnlockMutex(is->pictq_mutex);
1123 if(is->subtitle_st) {
1124 if (is->subtitle_stream_changed) {
1125 SDL_LockMutex(is->subpq_mutex);
1127 while (is->subpq_size) {
1128 free_subpicture(&is->subpq[is->subpq_rindex]);
1130 /* update queue size and signal for next picture */
1131 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1132 is->subpq_rindex = 0;
1136 is->subtitle_stream_changed = 0;
1138 SDL_CondSignal(is->subpq_cond);
1139 SDL_UnlockMutex(is->subpq_mutex);
1141 if (is->subpq_size > 0) {
1142 sp = &is->subpq[is->subpq_rindex];
1144 if (is->subpq_size > 1)
1145 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1149 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1150 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1152 free_subpicture(sp);
1154 /* update queue size and signal for next picture */
1155 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1156 is->subpq_rindex = 0;
1158 SDL_LockMutex(is->subpq_mutex);
1160 SDL_CondSignal(is->subpq_cond);
1161 SDL_UnlockMutex(is->subpq_mutex);
1167 /* display picture */
1168 if (!display_disable)
1171 /* update queue size and signal for next picture */
1172 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1173 is->pictq_rindex = 0;
1175 SDL_LockMutex(is->pictq_mutex);
1177 SDL_CondSignal(is->pictq_cond);
1178 SDL_UnlockMutex(is->pictq_mutex);
1180 } else if (is->audio_st) {
1181 /* draw the next audio frame */
1183 /* if only audio stream, then display the audio bars (better
1184 than nothing, just to test the implementation */
1186 /* display picture */
1187 if (!display_disable)
1191 static int64_t last_time;
1193 int aqsize, vqsize, sqsize;
1196 cur_time = av_gettime();
1197 if (!last_time || (cur_time - last_time) >= 30000) {
1202 aqsize = is->audioq.size;
1204 vqsize = is->videoq.size;
1205 if (is->subtitle_st)
1206 sqsize = is->subtitleq.size;
1208 if (is->audio_st && is->video_st)
1209 av_diff = get_audio_clock(is) - get_video_clock(is);
1210 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1211 get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
1213 last_time = cur_time;
1218 static void stream_close(VideoState *is)
1222 /* XXX: use a special url_shutdown call to abort parse cleanly */
1223 is->abort_request = 1;
1224 SDL_WaitThread(is->parse_tid, NULL);
1225 SDL_WaitThread(is->refresh_tid, NULL);
1227 /* free all pictures */
1228 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1232 avfilter_unref_buffer(vp->picref);
1237 SDL_FreeYUVOverlay(vp->bmp);
1241 SDL_DestroyMutex(is->pictq_mutex);
1242 SDL_DestroyCond(is->pictq_cond);
1243 SDL_DestroyMutex(is->subpq_mutex);
1244 SDL_DestroyCond(is->subpq_cond);
1245 #if !CONFIG_AVFILTER
1246 if (is->img_convert_ctx)
1247 sws_freeContext(is->img_convert_ctx);
1252 static void do_exit(void)
1255 stream_close(cur_stream);
1262 avformat_network_deinit();
1266 av_log(NULL, AV_LOG_QUIET, "");
1270 /* allocate a picture (needs to do that in main thread to avoid
1271 potential locking problems */
1272 static void alloc_picture(void *opaque)
1274 VideoState *is = opaque;
1277 vp = &is->pictq[is->pictq_windex];
1280 SDL_FreeYUVOverlay(vp->bmp);
1284 avfilter_unref_buffer(vp->picref);
1287 vp->width = is->out_video_filter->inputs[0]->w;
1288 vp->height = is->out_video_filter->inputs[0]->h;
1289 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1291 vp->width = is->video_st->codec->width;
1292 vp->height = is->video_st->codec->height;
1293 vp->pix_fmt = is->video_st->codec->pix_fmt;
1296 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1299 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1300 /* SDL allocates a buffer smaller than requested if the video
1301 * overlay hardware is unable to support the requested size. */
1302 fprintf(stderr, "Error: the video system does not support an image\n"
1303 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1304 "to reduce the image size.\n", vp->width, vp->height );
1308 SDL_LockMutex(is->pictq_mutex);
1310 SDL_CondSignal(is->pictq_cond);
1311 SDL_UnlockMutex(is->pictq_mutex);
1316 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1318 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1324 int dst_pix_fmt = PIX_FMT_YUV420P;
1326 /* wait until we have space to put a new picture */
1327 SDL_LockMutex(is->pictq_mutex);
1329 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1330 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1332 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1333 !is->videoq.abort_request) {
1334 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1336 SDL_UnlockMutex(is->pictq_mutex);
1338 if (is->videoq.abort_request)
1341 vp = &is->pictq[is->pictq_windex];
1343 /* alloc or resize hardware picture buffer */
1344 if (!vp->bmp || vp->reallocate ||
1346 vp->width != is->out_video_filter->inputs[0]->w ||
1347 vp->height != is->out_video_filter->inputs[0]->h) {
1349 vp->width != is->video_st->codec->width ||
1350 vp->height != is->video_st->codec->height) {
1357 /* the allocation must be done in the main thread to avoid
1359 event.type = FF_ALLOC_EVENT;
1360 event.user.data1 = is;
1361 SDL_PushEvent(&event);
1363 /* wait until the picture is allocated */
1364 SDL_LockMutex(is->pictq_mutex);
1365 while (!vp->allocated && !is->videoq.abort_request) {
1366 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1368 SDL_UnlockMutex(is->pictq_mutex);
1370 if (is->videoq.abort_request)
1374 /* if the frame is not skipped, then display it */
1379 avfilter_unref_buffer(vp->picref);
1380 vp->picref = src_frame->opaque;
1383 /* get a pointer on the bitmap */
1384 SDL_LockYUVOverlay (vp->bmp);
1386 memset(&pict,0,sizeof(AVPicture));
1387 pict.data[0] = vp->bmp->pixels[0];
1388 pict.data[1] = vp->bmp->pixels[2];
1389 pict.data[2] = vp->bmp->pixels[1];
1391 pict.linesize[0] = vp->bmp->pitches[0];
1392 pict.linesize[1] = vp->bmp->pitches[2];
1393 pict.linesize[2] = vp->bmp->pitches[1];
1396 pict_src.data[0] = src_frame->data[0];
1397 pict_src.data[1] = src_frame->data[1];
1398 pict_src.data[2] = src_frame->data[2];
1400 pict_src.linesize[0] = src_frame->linesize[0];
1401 pict_src.linesize[1] = src_frame->linesize[1];
1402 pict_src.linesize[2] = src_frame->linesize[2];
1404 //FIXME use direct rendering
1405 av_picture_copy(&pict, &pict_src,
1406 vp->pix_fmt, vp->width, vp->height);
1408 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1409 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1410 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1411 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1412 if (is->img_convert_ctx == NULL) {
1413 fprintf(stderr, "Cannot initialize the conversion context\n");
1416 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1417 0, vp->height, pict.data, pict.linesize);
1419 /* update the bitmap content */
1420 SDL_UnlockYUVOverlay(vp->bmp);
1425 /* now we can update the picture count */
1426 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1427 is->pictq_windex = 0;
1428 SDL_LockMutex(is->pictq_mutex);
1429 vp->target_clock= compute_target_time(vp->pts, is);
1432 SDL_UnlockMutex(is->pictq_mutex);
1438 * compute the exact PTS for the picture if it is omitted in the stream
1439 * @param pts1 the dts of the pkt / pts of the frame
1441 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1443 double frame_delay, pts;
1448 /* update video clock with pts, if present */
1449 is->video_clock = pts;
1451 pts = is->video_clock;
1453 /* update video clock for next frame */
1454 frame_delay = av_q2d(is->video_st->codec->time_base);
1455 /* for MPEG2, the frame can be repeated, so we update the
1456 clock accordingly */
1457 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1458 is->video_clock += frame_delay;
1460 return queue_picture(is, src_frame, pts, pos);
1463 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1467 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1470 if (pkt->data == flush_pkt.data) {
1471 avcodec_flush_buffers(is->video_st->codec);
1473 SDL_LockMutex(is->pictq_mutex);
1474 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1475 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1476 is->pictq[i].target_clock= 0;
1478 while (is->pictq_size && !is->videoq.abort_request) {
1479 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1481 is->video_current_pos = -1;
1482 SDL_UnlockMutex(is->pictq_mutex);
1484 init_pts_correction(&is->pts_ctx);
1485 is->frame_last_pts = AV_NOPTS_VALUE;
1486 is->frame_last_delay = 0;
1487 is->frame_timer = (double)av_gettime() / 1000000.0;
1488 is->skip_frames = 1;
1489 is->skip_frames_index = 0;
1493 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1496 if (decoder_reorder_pts == -1) {
1497 *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
1498 } else if (decoder_reorder_pts) {
1499 *pts = frame->pkt_pts;
1501 *pts = frame->pkt_dts;
1504 if (*pts == AV_NOPTS_VALUE) {
1508 is->skip_frames_index += 1;
1509 if(is->skip_frames_index >= is->skip_frames){
1510 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1525 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1527 AVFilterContext *ctx = codec->opaque;
1528 AVFilterBufferRef *ref;
1529 int perms = AV_PERM_WRITE;
1530 int i, w, h, stride[4];
1534 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1535 perms |= AV_PERM_NEG_LINESIZES;
1537 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1538 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1539 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1540 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1542 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1546 avcodec_align_dimensions2(codec, &w, &h, stride);
1547 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1551 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1554 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
1555 ref->video->w = codec->width;
1556 ref->video->h = codec->height;
1557 for(i = 0; i < 4; i ++) {
1558 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1559 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1562 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1564 pic->data[i] = ref->data[i];
1565 pic->linesize[i] = ref->linesize[i];
1569 pic->type = FF_BUFFER_TYPE_USER;
1570 pic->reordered_opaque = codec->reordered_opaque;
1571 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1572 else pic->pkt_pts = AV_NOPTS_VALUE;
1576 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1578 memset(pic->data, 0, sizeof(pic->data));
1579 avfilter_unref_buffer(pic->opaque);
1582 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1584 AVFilterBufferRef *ref = pic->opaque;
1586 if (pic->data[0] == NULL) {
1587 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1588 return codec->get_buffer(codec, pic);
1591 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1592 (codec->pix_fmt != ref->format)) {
1593 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1597 pic->reordered_opaque = codec->reordered_opaque;
1598 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1599 else pic->pkt_pts = AV_NOPTS_VALUE;
1603 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1605 FilterPriv *priv = ctx->priv;
1606 AVCodecContext *codec;
1607 if(!opaque) return -1;
1610 codec = priv->is->video_st->codec;
1611 codec->opaque = ctx;
1612 if(codec->codec->capabilities & CODEC_CAP_DR1) {
1614 codec->get_buffer = input_get_buffer;
1615 codec->release_buffer = input_release_buffer;
1616 codec->reget_buffer = input_reget_buffer;
1617 codec->thread_safe_callbacks = 1;
1620 priv->frame = avcodec_alloc_frame();
1625 static void input_uninit(AVFilterContext *ctx)
1627 FilterPriv *priv = ctx->priv;
1628 av_free(priv->frame);
1631 static int input_request_frame(AVFilterLink *link)
1633 FilterPriv *priv = link->src->priv;
1634 AVFilterBufferRef *picref;
1639 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1640 av_free_packet(&pkt);
1645 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1647 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1648 av_image_copy(picref->data, picref->linesize,
1649 priv->frame->data, priv->frame->linesize,
1650 picref->format, link->w, link->h);
1652 av_free_packet(&pkt);
1655 picref->pos = pkt.pos;
1656 picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1657 avfilter_start_frame(link, picref);
1658 avfilter_draw_slice(link, 0, link->h, 1);
1659 avfilter_end_frame(link);
1664 static int input_query_formats(AVFilterContext *ctx)
1666 FilterPriv *priv = ctx->priv;
1667 enum PixelFormat pix_fmts[] = {
1668 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1671 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1675 static int input_config_props(AVFilterLink *link)
1677 FilterPriv *priv = link->src->priv;
1678 AVCodecContext *c = priv->is->video_st->codec;
1681 link->h = c->height;
1682 link->time_base = priv->is->video_st->time_base;
1687 static AVFilter input_filter =
1689 .name = "avplay_input",
1691 .priv_size = sizeof(FilterPriv),
1694 .uninit = input_uninit,
1696 .query_formats = input_query_formats,
1698 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1699 .outputs = (AVFilterPad[]) {{ .name = "default",
1700 .type = AVMEDIA_TYPE_VIDEO,
1701 .request_frame = input_request_frame,
1702 .config_props = input_config_props, },
1706 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1708 char sws_flags_str[128];
1710 FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1711 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1712 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1713 graph->scale_sws_opts = av_strdup(sws_flags_str);
1715 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1716 NULL, is, graph)) < 0)
1718 if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1719 NULL, &ffsink_ctx, graph)) < 0)
1723 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1724 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1726 outputs->name = av_strdup("in");
1727 outputs->filter_ctx = filt_src;
1728 outputs->pad_idx = 0;
1729 outputs->next = NULL;
1731 inputs->name = av_strdup("out");
1732 inputs->filter_ctx = filt_out;
1733 inputs->pad_idx = 0;
1734 inputs->next = NULL;
1736 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1738 av_freep(&vfilters);
1740 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1744 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1747 is->out_video_filter = filt_out;
1752 #endif /* CONFIG_AVFILTER */
1754 static int video_thread(void *arg)
1756 VideoState *is = arg;
1757 AVFrame *frame= avcodec_alloc_frame();
1763 AVFilterGraph *graph = avfilter_graph_alloc();
1764 AVFilterContext *filt_out = NULL;
1766 int last_w = is->video_st->codec->width;
1767 int last_h = is->video_st->codec->height;
1769 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1771 filt_out = is->out_video_filter;
1775 #if !CONFIG_AVFILTER
1778 AVFilterBufferRef *picref;
1781 while (is->paused && !is->videoq.abort_request)
1784 if ( last_w != is->video_st->codec->width
1785 || last_h != is->video_st->codec->height) {
1786 av_dlog(NULL, "Changing size %dx%d -> %dx%d\n", last_w, last_h,
1787 is->video_st->codec->width, is->video_st->codec->height);
1788 avfilter_graph_free(&graph);
1789 graph = avfilter_graph_alloc();
1790 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1792 filt_out = is->out_video_filter;
1793 last_w = is->video_st->codec->width;
1794 last_h = is->video_st->codec->height;
1796 ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1798 pts_int = picref->pts;
1800 frame->opaque = picref;
1803 if (av_cmp_q(tb, is->video_st->time_base)) {
1804 av_unused int64_t pts1 = pts_int;
1805 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1806 av_dlog(NULL, "video_thread(): "
1807 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1808 tb.num, tb.den, pts1,
1809 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1812 ret = get_video_frame(is, frame, &pts_int, &pkt);
1815 if (ret < 0) goto the_end;
1820 pts = pts_int*av_q2d(is->video_st->time_base);
1823 ret = output_picture2(is, frame, pts, pos);
1825 ret = output_picture2(is, frame, pts, pkt.pos);
1826 av_free_packet(&pkt);
1833 stream_pause(cur_stream);
1837 avfilter_graph_free(&graph);
1843 static int subtitle_thread(void *arg)
1845 VideoState *is = arg;
1847 AVPacket pkt1, *pkt = &pkt1;
1851 int r, g, b, y, u, v, a;
1854 while (is->paused && !is->subtitleq.abort_request) {
1857 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1860 if(pkt->data == flush_pkt.data){
1861 avcodec_flush_buffers(is->subtitle_st->codec);
1864 SDL_LockMutex(is->subpq_mutex);
1865 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1866 !is->subtitleq.abort_request) {
1867 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1869 SDL_UnlockMutex(is->subpq_mutex);
1871 if (is->subtitleq.abort_request)
1874 sp = &is->subpq[is->subpq_windex];
1876 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1877 this packet, if any */
1879 if (pkt->pts != AV_NOPTS_VALUE)
1880 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1882 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1883 &got_subtitle, pkt);
1885 if (got_subtitle && sp->sub.format == 0) {
1888 for (i = 0; i < sp->sub.num_rects; i++)
1890 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1892 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1893 y = RGB_TO_Y_CCIR(r, g, b);
1894 u = RGB_TO_U_CCIR(r, g, b, 0);
1895 v = RGB_TO_V_CCIR(r, g, b, 0);
1896 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1900 /* now we can update the picture count */
1901 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1902 is->subpq_windex = 0;
1903 SDL_LockMutex(is->subpq_mutex);
1905 SDL_UnlockMutex(is->subpq_mutex);
1907 av_free_packet(pkt);
1912 /* copy samples for viewing in editor window */
1913 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1917 size = samples_size / sizeof(short);
1919 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1922 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1924 is->sample_array_index += len;
1925 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1926 is->sample_array_index = 0;
1931 /* return the new audio buffer size (samples can be added or deleted
1932 to get better sync if video or external master clock) */
1933 static int synchronize_audio(VideoState *is, short *samples,
1934 int samples_size1, double pts)
1936 int n, samples_size;
1939 n = 2 * is->audio_st->codec->channels;
1940 samples_size = samples_size1;
1942 /* if not master, then we try to remove or add samples to correct the clock */
1943 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1944 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1945 double diff, avg_diff;
1946 int wanted_size, min_size, max_size, nb_samples;
1948 ref_clock = get_master_clock(is);
1949 diff = get_audio_clock(is) - ref_clock;
1951 if (diff < AV_NOSYNC_THRESHOLD) {
1952 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1953 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1954 /* not enough measures to have a correct estimate */
1955 is->audio_diff_avg_count++;
1957 /* estimate the A-V difference */
1958 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1960 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1961 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1962 nb_samples = samples_size / n;
1964 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1965 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1966 if (wanted_size < min_size)
1967 wanted_size = min_size;
1968 else if (wanted_size > max_size)
1969 wanted_size = max_size;
1971 /* add or remove samples to correction the synchro */
1972 if (wanted_size < samples_size) {
1973 /* remove samples */
1974 samples_size = wanted_size;
1975 } else if (wanted_size > samples_size) {
1976 uint8_t *samples_end, *q;
1980 nb = (samples_size - wanted_size);
1981 samples_end = (uint8_t *)samples + samples_size - n;
1982 q = samples_end + n;
1984 memcpy(q, samples_end, n);
1988 samples_size = wanted_size;
1991 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1992 diff, avg_diff, samples_size - samples_size1,
1993 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1996 /* too big difference : may be initial PTS errors, so
1998 is->audio_diff_avg_count = 0;
1999 is->audio_diff_cum = 0;
2003 return samples_size;
2006 /* decode one audio frame and returns its uncompressed size */
2007 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2009 AVPacket *pkt_temp = &is->audio_pkt_temp;
2010 AVPacket *pkt = &is->audio_pkt;
2011 AVCodecContext *dec= is->audio_st->codec;
2012 int n, len1, data_size;
2015 int flush_complete = 0;
2018 /* NOTE: the audio packet can contain several frames */
2019 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
2023 data_size = sizeof(is->audio_buf1);
2024 len1 = avcodec_decode_audio3(dec,
2025 (int16_t *)is->audio_buf1, &data_size,
2028 /* if error, we skip the frame */
2033 pkt_temp->data += len1;
2034 pkt_temp->size -= len1;
2036 if (data_size <= 0) {
2037 /* stop sending empty packets if the decoder is finished */
2038 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2043 if (dec->sample_fmt != is->audio_src_fmt) {
2044 if (is->reformat_ctx)
2045 av_audio_convert_free(is->reformat_ctx);
2046 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2047 dec->sample_fmt, 1, NULL, 0);
2048 if (!is->reformat_ctx) {
2049 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2050 av_get_sample_fmt_name(dec->sample_fmt),
2051 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2054 is->audio_src_fmt= dec->sample_fmt;
2057 if (is->reformat_ctx) {
2058 const void *ibuf[6]= {is->audio_buf1};
2059 void *obuf[6]= {is->audio_buf2};
2060 int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)};
2061 int ostride[6]= {2};
2062 int len= data_size/istride[0];
2063 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2064 printf("av_audio_convert() failed\n");
2067 is->audio_buf= is->audio_buf2;
2068 /* FIXME: existing code assume that data_size equals framesize*channels*2
2069 remove this legacy cruft */
2072 is->audio_buf= is->audio_buf1;
2075 /* if no pts, then compute it */
2076 pts = is->audio_clock;
2078 n = 2 * dec->channels;
2079 is->audio_clock += (double)data_size /
2080 (double)(n * dec->sample_rate);
2083 static double last_clock;
2084 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2085 is->audio_clock - last_clock,
2086 is->audio_clock, pts);
2087 last_clock = is->audio_clock;
2093 /* free the current packet */
2095 av_free_packet(pkt);
2097 if (is->paused || is->audioq.abort_request) {
2101 /* read next packet */
2102 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2105 if (pkt->data == flush_pkt.data)
2106 avcodec_flush_buffers(dec);
2108 pkt_temp->data = pkt->data;
2109 pkt_temp->size = pkt->size;
2111 /* if update the audio clock with the pts */
2112 if (pkt->pts != AV_NOPTS_VALUE) {
2113 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2118 /* prepare a new audio buffer */
2119 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2121 VideoState *is = opaque;
2122 int audio_size, len1;
2125 audio_callback_time = av_gettime();
2128 if (is->audio_buf_index >= is->audio_buf_size) {
2129 audio_size = audio_decode_frame(is, &pts);
2130 if (audio_size < 0) {
2131 /* if error, just output silence */
2132 is->audio_buf = is->audio_buf1;
2133 is->audio_buf_size = 1024;
2134 memset(is->audio_buf, 0, is->audio_buf_size);
2137 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2138 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2140 is->audio_buf_size = audio_size;
2142 is->audio_buf_index = 0;
2144 len1 = is->audio_buf_size - is->audio_buf_index;
2147 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2150 is->audio_buf_index += len1;
2154 /* open a given stream. Return 0 if OK */
2155 static int stream_component_open(VideoState *is, int stream_index)
2157 AVFormatContext *ic = is->ic;
2158 AVCodecContext *avctx;
2160 SDL_AudioSpec wanted_spec, spec;
2162 AVDictionaryEntry *t = NULL;
2164 if (stream_index < 0 || stream_index >= ic->nb_streams)
2166 avctx = ic->streams[stream_index]->codec;
2168 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index]);
2170 /* prepare audio output */
2171 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2172 if (avctx->channels > 0) {
2173 avctx->request_channels = FFMIN(2, avctx->channels);
2175 avctx->request_channels = 2;
2179 codec = avcodec_find_decoder(avctx->codec_id);
2180 avctx->debug_mv = debug_mv;
2181 avctx->debug = debug;
2182 avctx->workaround_bugs = workaround_bugs;
2183 avctx->lowres = lowres;
2184 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2185 avctx->idct_algo= idct;
2186 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2187 avctx->skip_frame= skip_frame;
2188 avctx->skip_idct= skip_idct;
2189 avctx->skip_loop_filter= skip_loop_filter;
2190 avctx->error_recognition= error_recognition;
2191 avctx->error_concealment= error_concealment;
2192 avctx->thread_count= thread_count;
2195 avcodec_open2(avctx, codec, &opts) < 0)
2197 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2198 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2199 return AVERROR_OPTION_NOT_FOUND;
2202 /* prepare audio output */
2203 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2204 wanted_spec.freq = avctx->sample_rate;
2205 wanted_spec.format = AUDIO_S16SYS;
2206 wanted_spec.channels = avctx->channels;
2207 wanted_spec.silence = 0;
2208 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2209 wanted_spec.callback = sdl_audio_callback;
2210 wanted_spec.userdata = is;
2211 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2212 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2215 is->audio_hw_buf_size = spec.size;
2216 is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2219 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2220 switch(avctx->codec_type) {
2221 case AVMEDIA_TYPE_AUDIO:
2222 is->audio_stream = stream_index;
2223 is->audio_st = ic->streams[stream_index];
2224 is->audio_buf_size = 0;
2225 is->audio_buf_index = 0;
2227 /* init averaging filter */
2228 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2229 is->audio_diff_avg_count = 0;
2230 /* since we do not have a precise anough audio fifo fullness,
2231 we correct audio sync only if larger than this threshold */
2232 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2234 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2235 packet_queue_init(&is->audioq);
2238 case AVMEDIA_TYPE_VIDEO:
2239 is->video_stream = stream_index;
2240 is->video_st = ic->streams[stream_index];
2242 packet_queue_init(&is->videoq);
2243 is->video_tid = SDL_CreateThread(video_thread, is);
2245 case AVMEDIA_TYPE_SUBTITLE:
2246 is->subtitle_stream = stream_index;
2247 is->subtitle_st = ic->streams[stream_index];
2248 packet_queue_init(&is->subtitleq);
2250 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2258 static void stream_component_close(VideoState *is, int stream_index)
2260 AVFormatContext *ic = is->ic;
2261 AVCodecContext *avctx;
2263 if (stream_index < 0 || stream_index >= ic->nb_streams)
2265 avctx = ic->streams[stream_index]->codec;
2267 switch(avctx->codec_type) {
2268 case AVMEDIA_TYPE_AUDIO:
2269 packet_queue_abort(&is->audioq);
2273 packet_queue_end(&is->audioq);
2274 av_free_packet(&is->audio_pkt);
2275 if (is->reformat_ctx)
2276 av_audio_convert_free(is->reformat_ctx);
2277 is->reformat_ctx = NULL;
2280 av_rdft_end(is->rdft);
2281 av_freep(&is->rdft_data);
2286 case AVMEDIA_TYPE_VIDEO:
2287 packet_queue_abort(&is->videoq);
2289 /* note: we also signal this mutex to make sure we deblock the
2290 video thread in all cases */
2291 SDL_LockMutex(is->pictq_mutex);
2292 SDL_CondSignal(is->pictq_cond);
2293 SDL_UnlockMutex(is->pictq_mutex);
2295 SDL_WaitThread(is->video_tid, NULL);
2297 packet_queue_end(&is->videoq);
2299 case AVMEDIA_TYPE_SUBTITLE:
2300 packet_queue_abort(&is->subtitleq);
2302 /* note: we also signal this mutex to make sure we deblock the
2303 video thread in all cases */
2304 SDL_LockMutex(is->subpq_mutex);
2305 is->subtitle_stream_changed = 1;
2307 SDL_CondSignal(is->subpq_cond);
2308 SDL_UnlockMutex(is->subpq_mutex);
2310 SDL_WaitThread(is->subtitle_tid, NULL);
2312 packet_queue_end(&is->subtitleq);
2318 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2319 avcodec_close(avctx);
2320 switch(avctx->codec_type) {
2321 case AVMEDIA_TYPE_AUDIO:
2322 is->audio_st = NULL;
2323 is->audio_stream = -1;
2325 case AVMEDIA_TYPE_VIDEO:
2326 is->video_st = NULL;
2327 is->video_stream = -1;
2329 case AVMEDIA_TYPE_SUBTITLE:
2330 is->subtitle_st = NULL;
2331 is->subtitle_stream = -1;
2338 /* since we have only one decoding thread, we can use a global
2339 variable instead of a thread local variable */
2340 static VideoState *global_video_state;
2342 static int decode_interrupt_cb(void *ctx)
2344 return (global_video_state && global_video_state->abort_request);
2347 /* this thread gets the stream from the disk or the network */
2348 static int decode_thread(void *arg)
2350 VideoState *is = arg;
2351 AVFormatContext *ic = NULL;
2353 int st_index[AVMEDIA_TYPE_NB];
2354 AVPacket pkt1, *pkt = &pkt1;
2356 int pkt_in_play_range = 0;
2357 AVDictionaryEntry *t;
2358 AVDictionary **opts;
2359 int orig_nb_streams;
2361 memset(st_index, -1, sizeof(st_index));
2362 is->video_stream = -1;
2363 is->audio_stream = -1;
2364 is->subtitle_stream = -1;
2366 global_video_state = is;
2368 ic = avformat_alloc_context();
2369 ic->interrupt_callback.callback = decode_interrupt_cb;
2370 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2372 print_error(is->filename, err);
2376 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2377 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2378 ret = AVERROR_OPTION_NOT_FOUND;
2384 ic->flags |= AVFMT_FLAG_GENPTS;
2386 opts = setup_find_stream_info_opts(ic, codec_opts);
2387 orig_nb_streams = ic->nb_streams;
2389 err = avformat_find_stream_info(ic, opts);
2391 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2395 for (i = 0; i < orig_nb_streams; i++)
2396 av_dict_free(&opts[i]);
2400 ic->pb->eof_reached= 0; //FIXME hack, avplay maybe should not use url_feof() to test for the end
2403 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2405 /* if seeking requested, we execute it */
2406 if (start_time != AV_NOPTS_VALUE) {
2409 timestamp = start_time;
2410 /* add the stream start time */
2411 if (ic->start_time != AV_NOPTS_VALUE)
2412 timestamp += ic->start_time;
2413 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2415 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2416 is->filename, (double)timestamp / AV_TIME_BASE);
2420 for (i = 0; i < ic->nb_streams; i++)
2421 ic->streams[i]->discard = AVDISCARD_ALL;
2423 st_index[AVMEDIA_TYPE_VIDEO] =
2424 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2425 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2427 st_index[AVMEDIA_TYPE_AUDIO] =
2428 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2429 wanted_stream[AVMEDIA_TYPE_AUDIO],
2430 st_index[AVMEDIA_TYPE_VIDEO],
2433 st_index[AVMEDIA_TYPE_SUBTITLE] =
2434 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2435 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2436 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2437 st_index[AVMEDIA_TYPE_AUDIO] :
2438 st_index[AVMEDIA_TYPE_VIDEO]),
2441 av_dump_format(ic, 0, is->filename, 0);
2444 /* open the streams */
2445 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2446 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2450 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2451 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2453 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2455 if (!display_disable)
2459 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2460 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2463 if (is->video_stream < 0 && is->audio_stream < 0) {
2464 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2470 if (is->abort_request)
2472 if (is->paused != is->last_paused) {
2473 is->last_paused = is->paused;
2475 is->read_pause_return= av_read_pause(ic);
2479 #if CONFIG_RTSP_DEMUXER
2480 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2481 /* wait 10 ms to avoid trying to get another packet */
2488 int64_t seek_target= is->seek_pos;
2489 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2490 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2491 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2492 // of the seek_pos/seek_rel variables
2494 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2496 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2498 if (is->audio_stream >= 0) {
2499 packet_queue_flush(&is->audioq);
2500 packet_queue_put(&is->audioq, &flush_pkt);
2502 if (is->subtitle_stream >= 0) {
2503 packet_queue_flush(&is->subtitleq);
2504 packet_queue_put(&is->subtitleq, &flush_pkt);
2506 if (is->video_stream >= 0) {
2507 packet_queue_flush(&is->videoq);
2508 packet_queue_put(&is->videoq, &flush_pkt);
2515 /* if the queue are full, no need to read more */
2516 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2517 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2518 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2519 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2525 if(is->video_stream >= 0){
2526 av_init_packet(pkt);
2529 pkt->stream_index= is->video_stream;
2530 packet_queue_put(&is->videoq, pkt);
2532 if (is->audio_stream >= 0 &&
2533 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2534 av_init_packet(pkt);
2537 pkt->stream_index = is->audio_stream;
2538 packet_queue_put(&is->audioq, pkt);
2541 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2542 if(loop!=1 && (!loop || --loop)){
2543 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2551 ret = av_read_frame(ic, pkt);
2553 if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
2555 if (ic->pb && ic->pb->error)
2557 SDL_Delay(100); /* wait for user event */
2560 /* check if packet is in play range specified by user, then queue, otherwise discard */
2561 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2562 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2563 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2564 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2565 <= ((double)duration/1000000);
2566 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2567 packet_queue_put(&is->audioq, pkt);
2568 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2569 packet_queue_put(&is->videoq, pkt);
2570 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2571 packet_queue_put(&is->subtitleq, pkt);
2573 av_free_packet(pkt);
2576 /* wait until the end */
2577 while (!is->abort_request) {
2583 /* disable interrupting */
2584 global_video_state = NULL;
2586 /* close each stream */
2587 if (is->audio_stream >= 0)
2588 stream_component_close(is, is->audio_stream);
2589 if (is->video_stream >= 0)
2590 stream_component_close(is, is->video_stream);
2591 if (is->subtitle_stream >= 0)
2592 stream_component_close(is, is->subtitle_stream);
2594 av_close_input_file(is->ic);
2595 is->ic = NULL; /* safety */
2597 avio_set_interrupt_cb(NULL);
2602 event.type = FF_QUIT_EVENT;
2603 event.user.data1 = is;
2604 SDL_PushEvent(&event);
2609 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2613 is = av_mallocz(sizeof(VideoState));
2616 av_strlcpy(is->filename, filename, sizeof(is->filename));
2617 is->iformat = iformat;
2621 /* start video display */
2622 is->pictq_mutex = SDL_CreateMutex();
2623 is->pictq_cond = SDL_CreateCond();
2625 is->subpq_mutex = SDL_CreateMutex();
2626 is->subpq_cond = SDL_CreateCond();
2628 is->av_sync_type = av_sync_type;
2629 is->parse_tid = SDL_CreateThread(decode_thread, is);
2630 if (!is->parse_tid) {
2637 static void stream_cycle_channel(VideoState *is, int codec_type)
2639 AVFormatContext *ic = is->ic;
2640 int start_index, stream_index;
2643 if (codec_type == AVMEDIA_TYPE_VIDEO)
2644 start_index = is->video_stream;
2645 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2646 start_index = is->audio_stream;
2648 start_index = is->subtitle_stream;
2649 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2651 stream_index = start_index;
2653 if (++stream_index >= is->ic->nb_streams)
2655 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2662 if (stream_index == start_index)
2664 st = ic->streams[stream_index];
2665 if (st->codec->codec_type == codec_type) {
2666 /* check that parameters are OK */
2667 switch(codec_type) {
2668 case AVMEDIA_TYPE_AUDIO:
2669 if (st->codec->sample_rate != 0 &&
2670 st->codec->channels != 0)
2673 case AVMEDIA_TYPE_VIDEO:
2674 case AVMEDIA_TYPE_SUBTITLE:
2682 stream_component_close(is, start_index);
2683 stream_component_open(is, stream_index);
2687 static void toggle_full_screen(void)
2689 is_full_screen = !is_full_screen;
2690 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2691 /* OSX needs to empty the picture_queue */
2692 for (int i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
2693 cur_stream->pictq[i].reallocate = 1;
2696 video_open(cur_stream);
2699 static void toggle_pause(void)
2702 stream_pause(cur_stream);
2706 static void step_to_next_frame(void)
2709 /* if the stream is paused unpause it, then step */
2710 if (cur_stream->paused)
2711 stream_pause(cur_stream);
2716 static void toggle_audio_display(void)
2719 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2720 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2721 fill_rectangle(screen,
2722 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2724 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2728 /* handle an event sent by the GUI */
2729 static void event_loop(void)
2732 double incr, pos, frac;
2736 SDL_WaitEvent(&event);
2737 switch(event.type) {
2739 if (exit_on_keydown) {
2743 switch(event.key.keysym.sym) {
2749 toggle_full_screen();
2755 case SDLK_s: //S: Step to next frame
2756 step_to_next_frame();
2760 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2764 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2768 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2771 toggle_audio_display();
2786 if (seek_by_bytes) {
2787 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2788 pos= cur_stream->video_current_pos;
2789 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2790 pos= cur_stream->audio_pkt.pos;
2792 pos = avio_tell(cur_stream->ic->pb);
2793 if (cur_stream->ic->bit_rate)
2794 incr *= cur_stream->ic->bit_rate / 8.0;
2798 stream_seek(cur_stream, pos, incr, 1);
2800 pos = get_master_clock(cur_stream);
2802 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2810 case SDL_MOUSEBUTTONDOWN:
2811 if (exit_on_mousedown) {
2815 case SDL_MOUSEMOTION:
2816 if(event.type ==SDL_MOUSEBUTTONDOWN){
2819 if(event.motion.state != SDL_PRESSED)
2824 if(seek_by_bytes || cur_stream->ic->duration<=0){
2825 uint64_t size= avio_size(cur_stream->ic->pb);
2826 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2830 int tns, thh, tmm, tss;
2831 tns = cur_stream->ic->duration/1000000LL;
2833 tmm = (tns%3600)/60;
2835 frac = x/cur_stream->width;
2840 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2841 hh, mm, ss, thh, tmm, tss);
2842 ts = frac*cur_stream->ic->duration;
2843 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2844 ts += cur_stream->ic->start_time;
2845 stream_seek(cur_stream, ts, 0, 0);
2849 case SDL_VIDEORESIZE:
2851 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2852 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2853 screen_width = cur_stream->width = event.resize.w;
2854 screen_height= cur_stream->height= event.resize.h;
2861 case FF_ALLOC_EVENT:
2862 video_open(event.user.data1);
2863 alloc_picture(event.user.data1);
2865 case FF_REFRESH_EVENT:
2866 video_refresh_timer(event.user.data1);
2867 cur_stream->refresh=0;
2875 static int opt_frame_size(const char *opt, const char *arg)
2877 av_log(NULL, AV_LOG_ERROR,
2878 "Option '%s' has been removed, use private format options instead\n", opt);
2879 return AVERROR(EINVAL);
2882 static int opt_width(const char *opt, const char *arg)
2884 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2888 static int opt_height(const char *opt, const char *arg)
2890 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2894 static int opt_format(const char *opt, const char *arg)
2896 file_iformat = av_find_input_format(arg);
2897 if (!file_iformat) {
2898 fprintf(stderr, "Unknown input format: %s\n", arg);
2899 return AVERROR(EINVAL);
2904 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2906 av_log(NULL, AV_LOG_ERROR,
2907 "Option '%s' has been removed, use private format options instead\n", opt);
2908 return AVERROR(EINVAL);
2911 static int opt_sync(const char *opt, const char *arg)
2913 if (!strcmp(arg, "audio"))
2914 av_sync_type = AV_SYNC_AUDIO_MASTER;
2915 else if (!strcmp(arg, "video"))
2916 av_sync_type = AV_SYNC_VIDEO_MASTER;
2917 else if (!strcmp(arg, "ext"))
2918 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2920 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2926 static int opt_seek(const char *opt, const char *arg)
2928 start_time = parse_time_or_die(opt, arg, 1);
2932 static int opt_duration(const char *opt, const char *arg)
2934 duration = parse_time_or_die(opt, arg, 1);
2938 static int opt_debug(const char *opt, const char *arg)
2940 av_log_set_level(99);
2941 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2945 static int opt_vismv(const char *opt, const char *arg)
2947 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2951 static int opt_thread_count(const char *opt, const char *arg)
2953 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2955 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2960 static const OptionDef options[] = {
2961 #include "cmdutils_common_opts.h"
2962 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2963 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2964 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2965 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2966 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2967 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2968 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2969 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2970 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2971 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2972 { "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
2973 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2974 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2975 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2976 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2977 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2978 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2979 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2980 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
2981 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2982 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2983 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2984 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2985 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2986 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2987 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2988 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2989 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2990 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2991 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2992 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
2993 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
2994 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
2995 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
2996 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
2997 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
2998 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3000 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3002 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3003 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3004 { "i", 0, {NULL}, "avconv compatibility dummy option", ""},
3008 static void show_usage(void)
3010 printf("Simple media player\n");
3011 printf("usage: %s [options] input_file\n", program_name);
3015 static void show_help(void)
3017 av_log_set_callback(log_callback_help);
3019 show_help_options(options, "Main options:\n",
3021 show_help_options(options, "\nAdvanced options:\n",
3022 OPT_EXPERT, OPT_EXPERT);
3024 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3025 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3026 #if !CONFIG_AVFILTER
3027 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3029 printf("\nWhile playing:\n"
3031 "f toggle full screen\n"
3033 "a cycle audio channel\n"
3034 "v cycle video channel\n"
3035 "t cycle subtitle channel\n"
3036 "w show audio waves\n"
3037 "s activate frame-step mode\n"
3038 "left/right seek backward/forward 10 seconds\n"
3039 "down/up seek backward/forward 1 minute\n"
3040 "mouse click seek to percentage in file corresponding to fraction of width\n"
3044 static void opt_input_file(void *optctx, const char *filename)
3046 if (input_filename) {
3047 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3048 filename, input_filename);
3051 if (!strcmp(filename, "-"))
3053 input_filename = filename;
3056 /* Called from the main */
3057 int main(int argc, char **argv)
3061 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3062 parse_loglevel(argc, argv, options);
3064 /* register all codecs, demux and protocols */
3065 avcodec_register_all();
3067 avdevice_register_all();
3070 avfilter_register_all();
3073 avformat_network_init();
3079 parse_options(NULL, argc, argv, options, opt_input_file);
3081 if (!input_filename) {
3083 fprintf(stderr, "An input file must be specified\n");
3084 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3088 if (display_disable) {
3091 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3092 #if !defined(__MINGW32__) && !defined(__APPLE__)
3093 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3095 if (SDL_Init (flags)) {
3096 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3100 if (!display_disable) {
3101 #if HAVE_SDL_VIDEO_SIZE
3102 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3103 fs_screen_width = vi->current_w;
3104 fs_screen_height = vi->current_h;
3108 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3109 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3110 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3112 av_init_packet(&flush_pkt);
3113 flush_pkt.data= "FLUSH";
3115 cur_stream = stream_open(input_filename, file_iformat);