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/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 "libavutil/avassert.h"
35 #include "libavformat/avformat.h"
36 #include "libavdevice/avdevice.h"
37 #include "libswscale/swscale.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavutil/opt.h"
40 #include "libavcodec/avfft.h"
43 # include "libavfilter/avcodec.h"
44 # include "libavfilter/avfilter.h"
45 # include "libavfilter/avfiltergraph.h"
46 # include "libavfilter/buffersink.h"
50 #include <SDL_thread.h>
57 const char program_name[] = "ffplay";
58 const int program_birth_year = 2003;
60 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
61 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
64 /* SDL audio buffer size, in samples. Should be small to have precise
65 A/V sync as SDL does not have hardware buffer fullness info. */
66 #define SDL_AUDIO_BUFFER_SIZE 1024
68 /* no AV sync correction is done if below the AV sync threshold */
69 #define AV_SYNC_THRESHOLD 0.01
70 /* no AV correction is done if too big error */
71 #define AV_NOSYNC_THRESHOLD 10.0
73 #define FRAME_SKIP_FACTOR 0.05
75 /* maximum audio speed change to get correct sync */
76 #define SAMPLE_CORRECTION_PERCENT_MAX 10
78 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
79 #define AUDIO_DIFF_AVG_NB 20
81 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
82 #define SAMPLE_ARRAY_SIZE (2*65536)
84 static int sws_flags = SWS_BICUBIC;
86 typedef struct PacketQueue {
87 AVPacketList *first_pkt, *last_pkt;
95 #define VIDEO_PICTURE_QUEUE_SIZE 2
96 #define SUBPICTURE_QUEUE_SIZE 4
98 typedef struct VideoPicture {
99 double pts; ///<presentation time stamp for this picture
100 double target_clock; ///<av_gettime() time at which this should be displayed ideally
101 double duration; ///<expected duration of the frame
102 int64_t pos; ///<byte position in file
104 int width, height; /* source height & width */
106 enum PixelFormat pix_fmt;
109 AVFilterBufferRef *picref;
113 typedef struct SubPicture {
114 double pts; /* presentation time stamp for this picture */
119 AV_SYNC_AUDIO_MASTER, /* default choice */
120 AV_SYNC_VIDEO_MASTER,
121 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
124 typedef struct VideoState {
125 SDL_Thread *read_tid;
126 SDL_Thread *video_tid;
127 SDL_Thread *refresh_tid;
128 AVInputFormat *iformat;
137 int read_pause_return;
143 double external_clock; /* external clock base */
144 int64_t external_clock_time;
147 double audio_diff_cum; /* used for AV difference average computation */
148 double audio_diff_avg_coef;
149 double audio_diff_threshold;
150 int audio_diff_avg_count;
153 int audio_hw_buf_size;
154 /* samples output by the codec. we reserve more space for avsync
156 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
157 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
159 unsigned int audio_buf_size; /* in bytes */
160 int audio_buf_index; /* in bytes */
161 int audio_write_buf_size;
162 AVPacket audio_pkt_temp;
164 enum AVSampleFormat audio_src_fmt;
165 AVAudioConvert *reformat_ctx;
166 double audio_current_pts;
167 double audio_current_pts_drift;
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;
213 AVFilterContext *out_video_filter; ///<the last filter in the video chain
217 float skip_frames_index;
221 static int opt_help(const char *opt, const char *arg);
223 /* options specified by the user */
224 static AVInputFormat *file_iformat;
225 static const char *input_filename;
226 static const char *window_title;
227 static int fs_screen_width;
228 static int fs_screen_height;
229 static int screen_width = 0;
230 static int screen_height = 0;
231 static int audio_disable;
232 static int video_disable;
233 static int wanted_stream[AVMEDIA_TYPE_NB]={
234 [AVMEDIA_TYPE_AUDIO]=-1,
235 [AVMEDIA_TYPE_VIDEO]=-1,
236 [AVMEDIA_TYPE_SUBTITLE]=-1,
238 static int seek_by_bytes=-1;
239 static int display_disable;
240 static int show_status = 1;
241 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
242 static int64_t start_time = AV_NOPTS_VALUE;
243 static int64_t duration = AV_NOPTS_VALUE;
244 static int workaround_bugs = 1;
246 static int genpts = 0;
247 static int lowres = 0;
248 static int idct = FF_IDCT_AUTO;
249 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
250 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
251 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
252 static int error_recognition = FF_ER_CAREFUL;
253 static int error_concealment = 3;
254 static int decoder_reorder_pts= -1;
256 static int exit_on_keydown;
257 static int exit_on_mousedown;
259 static int framedrop=-1;
260 static enum ShowMode show_mode = SHOW_MODE_NONE;
261 static const char *audio_codec_name;
262 static const char *subtitle_codec_name;
263 static const char *video_codec_name;
265 static int rdftspeed=20;
267 static char *vfilters = NULL;
270 /* current context */
271 static int is_full_screen;
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)
291 /* duplicate the packet */
292 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
295 pkt1 = av_malloc(sizeof(AVPacketList));
302 SDL_LockMutex(q->mutex);
308 q->last_pkt->next = pkt1;
311 q->size += pkt1->pkt.size + sizeof(*pkt1);
312 /* XXX: should duplicate packet data in DV case */
313 SDL_CondSignal(q->cond);
315 SDL_UnlockMutex(q->mutex);
319 /* packet queue handling */
320 static void packet_queue_init(PacketQueue *q)
322 memset(q, 0, sizeof(PacketQueue));
323 q->mutex = SDL_CreateMutex();
324 q->cond = SDL_CreateCond();
325 packet_queue_put(q, &flush_pkt);
328 static void packet_queue_flush(PacketQueue *q)
330 AVPacketList *pkt, *pkt1;
332 SDL_LockMutex(q->mutex);
333 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
335 av_free_packet(&pkt->pkt);
342 SDL_UnlockMutex(q->mutex);
345 static void packet_queue_end(PacketQueue *q)
347 packet_queue_flush(q);
348 SDL_DestroyMutex(q->mutex);
349 SDL_DestroyCond(q->cond);
352 static void packet_queue_abort(PacketQueue *q)
354 SDL_LockMutex(q->mutex);
356 q->abort_request = 1;
358 SDL_CondSignal(q->cond);
360 SDL_UnlockMutex(q->mutex);
363 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
364 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
369 SDL_LockMutex(q->mutex);
372 if (q->abort_request) {
379 q->first_pkt = pkt1->next;
383 q->size -= pkt1->pkt.size + sizeof(*pkt1);
392 SDL_CondWait(q->cond, q->mutex);
395 SDL_UnlockMutex(q->mutex);
399 static inline void fill_rectangle(SDL_Surface *screen,
400 int x, int y, int w, int h, int color)
407 SDL_FillRect(screen, &rect, color);
410 #define ALPHA_BLEND(a, oldp, newp, s)\
411 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
413 #define RGBA_IN(r, g, b, a, s)\
415 unsigned int v = ((const uint32_t *)(s))[0];\
416 a = (v >> 24) & 0xff;\
417 r = (v >> 16) & 0xff;\
418 g = (v >> 8) & 0xff;\
422 #define YUVA_IN(y, u, v, a, s, pal)\
424 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
425 a = (val >> 24) & 0xff;\
426 y = (val >> 16) & 0xff;\
427 u = (val >> 8) & 0xff;\
431 #define YUVA_OUT(d, y, u, v, a)\
433 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
439 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
441 int wrap, wrap3, width2, skip2;
442 int y, u, v, a, u1, v1, a1, w, h;
443 uint8_t *lum, *cb, *cr;
446 int dstx, dsty, dstw, dsth;
448 dstw = av_clip(rect->w, 0, imgw);
449 dsth = av_clip(rect->h, 0, imgh);
450 dstx = av_clip(rect->x, 0, imgw - dstw);
451 dsty = av_clip(rect->y, 0, imgh - dsth);
452 lum = dst->data[0] + dsty * dst->linesize[0];
453 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
454 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
456 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
458 wrap = dst->linesize[0];
459 wrap3 = rect->pict.linesize[0];
460 p = rect->pict.data[0];
461 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
469 YUVA_IN(y, u, v, a, p, pal);
470 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
471 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
472 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
478 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
479 YUVA_IN(y, u, v, a, p, pal);
483 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
485 YUVA_IN(y, u, v, a, p + BPP, pal);
489 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
490 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
491 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
498 YUVA_IN(y, u, v, a, p, pal);
499 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
500 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
501 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
505 p += wrap3 - dstw * BPP;
506 lum += wrap - dstw - dstx;
507 cb += dst->linesize[1] - width2 - skip2;
508 cr += dst->linesize[2] - width2 - skip2;
510 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
516 YUVA_IN(y, u, v, a, p, pal);
520 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
523 YUVA_IN(y, u, v, a, p, pal);
527 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
528 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
529 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
535 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
536 YUVA_IN(y, u, v, a, p, pal);
540 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
542 YUVA_IN(y, u, v, a, p + BPP, pal);
546 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
550 YUVA_IN(y, u, v, a, p, pal);
554 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
556 YUVA_IN(y, u, v, a, p + BPP, pal);
560 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
562 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
563 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
567 p += -wrap3 + 2 * BPP;
571 YUVA_IN(y, u, v, a, p, pal);
575 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
578 YUVA_IN(y, u, v, a, p, pal);
582 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
583 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
584 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
590 p += wrap3 + (wrap3 - dstw * BPP);
591 lum += wrap + (wrap - dstw - dstx);
592 cb += dst->linesize[1] - width2 - skip2;
593 cr += dst->linesize[2] - width2 - skip2;
595 /* handle odd height */
602 YUVA_IN(y, u, v, a, p, pal);
603 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
604 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
605 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
611 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
612 YUVA_IN(y, u, v, a, p, pal);
616 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
618 YUVA_IN(y, u, v, a, p + BPP, pal);
622 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
623 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
624 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
631 YUVA_IN(y, u, v, a, p, pal);
632 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
633 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
634 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
639 static void free_subpicture(SubPicture *sp)
641 avsubtitle_free(&sp->sub);
644 static void video_image_display(VideoState *is)
650 int width, height, x, y;
654 vp = &is->pictq[is->pictq_rindex];
657 if (vp->picref->video->sample_aspect_ratio.num == 0)
660 aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio);
663 /* XXX: use variable in the frame */
664 if (is->video_st->sample_aspect_ratio.num)
665 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
666 else if (is->video_st->codec->sample_aspect_ratio.num)
667 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
671 if (aspect_ratio <= 0.0)
673 aspect_ratio *= (float)vp->width / (float)vp->height;
675 if (is->subtitle_st) {
676 if (is->subpq_size > 0) {
677 sp = &is->subpq[is->subpq_rindex];
679 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
680 SDL_LockYUVOverlay (vp->bmp);
682 pict.data[0] = vp->bmp->pixels[0];
683 pict.data[1] = vp->bmp->pixels[2];
684 pict.data[2] = vp->bmp->pixels[1];
686 pict.linesize[0] = vp->bmp->pitches[0];
687 pict.linesize[1] = vp->bmp->pitches[2];
688 pict.linesize[2] = vp->bmp->pitches[1];
690 for (i = 0; i < sp->sub.num_rects; i++)
691 blend_subrect(&pict, sp->sub.rects[i],
692 vp->bmp->w, vp->bmp->h);
694 SDL_UnlockYUVOverlay (vp->bmp);
700 /* XXX: we suppose the screen has a 1.0 pixel ratio */
702 width = ((int)rint(height * aspect_ratio)) & ~1;
703 if (width > is->width) {
705 height = ((int)rint(width / aspect_ratio)) & ~1;
707 x = (is->width - width) / 2;
708 y = (is->height - height) / 2;
709 is->no_background = 0;
710 rect.x = is->xleft + x;
711 rect.y = is->ytop + y;
712 rect.w = FFMAX(width, 1);
713 rect.h = FFMAX(height, 1);
714 SDL_DisplayYUVOverlay(vp->bmp, &rect);
718 static inline int compute_mod(int a, int b)
720 return a < 0 ? a%b + b : a%b;
723 static void video_audio_display(VideoState *s)
725 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
726 int ch, channels, h, h2, bgcolor, fgcolor;
728 int rdft_bits, nb_freq;
730 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
732 nb_freq= 1<<(rdft_bits-1);
734 /* compute display index : center on currently output samples */
735 channels = s->audio_st->codec->channels;
736 nb_display_channels = channels;
738 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
740 delay = s->audio_write_buf_size;
743 /* to be more precise, we take into account the time spent since
744 the last buffer computation */
745 if (audio_callback_time) {
746 time_diff = av_gettime() - audio_callback_time;
747 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
750 delay += 2*data_used;
751 if (delay < data_used)
754 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
755 if (s->show_mode == SHOW_MODE_WAVES) {
757 for(i=0; i<1000; i+=channels){
758 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
759 int a= s->sample_array[idx];
760 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
761 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
762 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
764 if(h<score && (b^c)<0){
771 s->last_i_start = i_start;
773 i_start = s->last_i_start;
776 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
777 if (s->show_mode == SHOW_MODE_WAVES) {
778 fill_rectangle(screen,
779 s->xleft, s->ytop, s->width, s->height,
782 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
784 /* total height for one channel */
785 h = s->height / nb_display_channels;
786 /* graph height / 2 */
788 for(ch = 0;ch < nb_display_channels; ch++) {
790 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
791 for(x = 0; x < s->width; x++) {
792 y = (s->sample_array[i] * h2) >> 15;
799 fill_rectangle(screen,
800 s->xleft + x, ys, 1, y,
803 if (i >= SAMPLE_ARRAY_SIZE)
804 i -= SAMPLE_ARRAY_SIZE;
808 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
810 for(ch = 1;ch < nb_display_channels; ch++) {
811 y = s->ytop + ch * h;
812 fill_rectangle(screen,
813 s->xleft, y, s->width, 1,
816 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
818 nb_display_channels= FFMIN(nb_display_channels, 2);
819 if(rdft_bits != s->rdft_bits){
820 av_rdft_end(s->rdft);
821 av_free(s->rdft_data);
822 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
823 s->rdft_bits= rdft_bits;
824 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
828 for(ch = 0;ch < nb_display_channels; ch++) {
829 data[ch] = s->rdft_data + 2*nb_freq*ch;
831 for(x = 0; x < 2*nb_freq; x++) {
832 double w= (x-nb_freq)*(1.0/nb_freq);
833 data[ch][x]= s->sample_array[i]*(1.0-w*w);
835 if (i >= SAMPLE_ARRAY_SIZE)
836 i -= SAMPLE_ARRAY_SIZE;
838 av_rdft_calc(s->rdft, data[ch]);
840 //least efficient way to do this, we should of course directly access it but its more than fast enough
841 for(y=0; y<s->height; y++){
842 double w= 1/sqrt(nb_freq);
843 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]));
844 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
845 + data[1][2*y+1]*data[1][2*y+1])) : a;
848 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
850 fill_rectangle(screen,
851 s->xpos, s->height-y, 1, 1,
855 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
857 if(s->xpos >= s->width)
862 static void stream_close(VideoState *is)
866 /* XXX: use a special url_shutdown call to abort parse cleanly */
867 is->abort_request = 1;
868 SDL_WaitThread(is->read_tid, NULL);
869 SDL_WaitThread(is->refresh_tid, NULL);
871 /* free all pictures */
872 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
876 avfilter_unref_buffer(vp->picref);
881 SDL_FreeYUVOverlay(vp->bmp);
885 SDL_DestroyMutex(is->pictq_mutex);
886 SDL_DestroyCond(is->pictq_cond);
887 SDL_DestroyMutex(is->subpq_mutex);
888 SDL_DestroyCond(is->subpq_cond);
890 if (is->img_convert_ctx)
891 sws_freeContext(is->img_convert_ctx);
896 static void do_exit(VideoState *is)
901 av_lockmgr_register(NULL);
909 av_log(NULL, AV_LOG_QUIET, "%s", "");
913 static int video_open(VideoState *is){
914 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
917 if(is_full_screen) flags |= SDL_FULLSCREEN;
918 else flags |= SDL_RESIZABLE;
920 if (is_full_screen && fs_screen_width) {
922 h = fs_screen_height;
923 } else if(!is_full_screen && screen_width){
927 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
928 w = is->out_video_filter->inputs[0]->w;
929 h = is->out_video_filter->inputs[0]->h;
931 }else if (is->video_st && is->video_st->codec->width){
932 w = is->video_st->codec->width;
933 h = is->video_st->codec->height;
939 if(screen && is->width == screen->w && screen->w == w
940 && is->height== screen->h && screen->h == h)
944 screen = SDL_SetVideoMode(w, h, 0, flags);
946 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
947 screen = SDL_SetVideoMode(w, h, 24, flags);
950 fprintf(stderr, "SDL: could not set video mode - exiting\n");
954 window_title = input_filename;
955 SDL_WM_SetCaption(window_title, window_title);
957 is->width = screen->w;
958 is->height = screen->h;
963 /* display the current picture, if any */
964 static void video_display(VideoState *is)
968 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
969 video_audio_display(is);
970 else if (is->video_st)
971 video_image_display(is);
974 static int refresh_thread(void *opaque)
976 VideoState *is= opaque;
977 while(!is->abort_request){
979 event.type = FF_REFRESH_EVENT;
980 event.user.data1 = opaque;
983 SDL_PushEvent(&event);
985 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
986 usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
991 /* get the current audio clock value */
992 static double get_audio_clock(VideoState *is)
995 return is->audio_current_pts;
997 return is->audio_current_pts_drift + av_gettime() / 1000000.0;
1001 /* get the current video clock value */
1002 static double get_video_clock(VideoState *is)
1005 return is->video_current_pts;
1007 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1011 /* get the current external clock value */
1012 static double get_external_clock(VideoState *is)
1016 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1019 /* get the current master clock value */
1020 static double get_master_clock(VideoState *is)
1024 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1026 val = get_video_clock(is);
1028 val = get_audio_clock(is);
1029 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1031 val = get_audio_clock(is);
1033 val = get_video_clock(is);
1035 val = get_external_clock(is);
1040 /* seek in the stream */
1041 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1043 if (!is->seek_req) {
1046 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1048 is->seek_flags |= AVSEEK_FLAG_BYTE;
1053 /* pause or resume the video */
1054 static void stream_toggle_pause(VideoState *is)
1057 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1058 if(is->read_pause_return != AVERROR(ENOSYS)){
1059 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1061 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1063 is->paused = !is->paused;
1066 static double compute_target_time(double frame_current_pts, VideoState *is)
1068 double delay, sync_threshold, diff;
1070 /* compute nominal delay */
1071 delay = frame_current_pts - is->frame_last_pts;
1072 if (delay <= 0 || delay >= 10.0) {
1073 /* if incorrect delay, use previous one */
1074 delay = is->frame_last_delay;
1076 is->frame_last_delay = delay;
1078 is->frame_last_pts = frame_current_pts;
1080 /* update delay to follow master synchronisation source */
1081 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1082 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1083 /* if video is slave, we try to correct big delays by
1084 duplicating or deleting a frame */
1085 diff = get_video_clock(is) - get_master_clock(is);
1087 /* skip or repeat frame. We take into account the
1088 delay to compute the threshold. I still don't know
1089 if it is the best guess */
1090 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1091 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1092 if (diff <= -sync_threshold)
1094 else if (diff >= sync_threshold)
1098 is->frame_timer += delay;
1100 av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
1101 delay, frame_current_pts, -diff);
1103 return is->frame_timer;
1106 /* called to display each frame */
1107 static void video_refresh(void *opaque)
1109 VideoState *is = opaque;
1112 SubPicture *sp, *sp2;
1116 if (is->pictq_size == 0) {
1117 //nothing to do, no picture to display in the que
1119 double time= av_gettime()/1000000.0;
1121 /* dequeue the picture */
1122 vp = &is->pictq[is->pictq_rindex];
1124 if(time < vp->target_clock)
1126 /* update current video pts */
1127 is->video_current_pts = vp->pts;
1128 is->video_current_pts_drift = is->video_current_pts - time;
1129 is->video_current_pos = vp->pos;
1130 if(is->pictq_size > 1){
1131 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1132 assert(nextvp->target_clock >= vp->target_clock);
1133 next_target= nextvp->target_clock;
1135 next_target= vp->target_clock + vp->duration;
1137 if((framedrop>0 || (framedrop && is->audio_st)) && time > next_target){
1138 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1139 if(is->pictq_size > 1){
1140 /* update queue size and signal for next picture */
1141 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1142 is->pictq_rindex = 0;
1144 SDL_LockMutex(is->pictq_mutex);
1146 SDL_CondSignal(is->pictq_cond);
1147 SDL_UnlockMutex(is->pictq_mutex);
1152 if(is->subtitle_st) {
1153 if (is->subtitle_stream_changed) {
1154 SDL_LockMutex(is->subpq_mutex);
1156 while (is->subpq_size) {
1157 free_subpicture(&is->subpq[is->subpq_rindex]);
1159 /* update queue size and signal for next picture */
1160 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1161 is->subpq_rindex = 0;
1165 is->subtitle_stream_changed = 0;
1167 SDL_CondSignal(is->subpq_cond);
1168 SDL_UnlockMutex(is->subpq_mutex);
1170 if (is->subpq_size > 0) {
1171 sp = &is->subpq[is->subpq_rindex];
1173 if (is->subpq_size > 1)
1174 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1178 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1179 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1181 free_subpicture(sp);
1183 /* update queue size and signal for next picture */
1184 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1185 is->subpq_rindex = 0;
1187 SDL_LockMutex(is->subpq_mutex);
1189 SDL_CondSignal(is->subpq_cond);
1190 SDL_UnlockMutex(is->subpq_mutex);
1196 /* display picture */
1197 if (!display_disable)
1200 /* update queue size and signal for next picture */
1201 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1202 is->pictq_rindex = 0;
1204 SDL_LockMutex(is->pictq_mutex);
1206 SDL_CondSignal(is->pictq_cond);
1207 SDL_UnlockMutex(is->pictq_mutex);
1209 } else if (is->audio_st) {
1210 /* draw the next audio frame */
1212 /* if only audio stream, then display the audio bars (better
1213 than nothing, just to test the implementation */
1215 /* display picture */
1216 if (!display_disable)
1220 static int64_t last_time;
1222 int aqsize, vqsize, sqsize;
1225 cur_time = av_gettime();
1226 if (!last_time || (cur_time - last_time) >= 30000) {
1231 aqsize = is->audioq.size;
1233 vqsize = is->videoq.size;
1234 if (is->subtitle_st)
1235 sqsize = is->subtitleq.size;
1237 if (is->audio_st && is->video_st)
1238 av_diff = get_audio_clock(is) - get_video_clock(is);
1239 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1240 get_master_clock(is),
1242 FFMAX(is->skip_frames-1, 0),
1246 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1247 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1249 last_time = cur_time;
1254 /* allocate a picture (needs to do that in main thread to avoid
1255 potential locking problems */
1256 static void alloc_picture(void *opaque)
1258 VideoState *is = opaque;
1261 vp = &is->pictq[is->pictq_windex];
1264 SDL_FreeYUVOverlay(vp->bmp);
1268 avfilter_unref_buffer(vp->picref);
1271 vp->width = is->out_video_filter->inputs[0]->w;
1272 vp->height = is->out_video_filter->inputs[0]->h;
1273 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1275 vp->width = is->video_st->codec->width;
1276 vp->height = is->video_st->codec->height;
1277 vp->pix_fmt = is->video_st->codec->pix_fmt;
1280 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1283 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1284 /* SDL allocates a buffer smaller than requested if the video
1285 * overlay hardware is unable to support the requested size. */
1286 fprintf(stderr, "Error: the video system does not support an image\n"
1287 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1288 "to reduce the image size.\n", vp->width, vp->height );
1292 SDL_LockMutex(is->pictq_mutex);
1294 SDL_CondSignal(is->pictq_cond);
1295 SDL_UnlockMutex(is->pictq_mutex);
1298 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1301 double frame_delay, pts = pts1;
1303 /* compute the exact PTS for the picture if it is omitted in the stream
1304 * pts1 is the dts of the pkt / pts of the frame */
1306 /* update video clock with pts, if present */
1307 is->video_clock = pts;
1309 pts = is->video_clock;
1311 /* update video clock for next frame */
1312 frame_delay = av_q2d(is->video_st->codec->time_base);
1313 /* for MPEG2, the frame can be repeated, so we update the
1314 clock accordingly */
1315 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1316 is->video_clock += frame_delay;
1318 #if defined(DEBUG_SYNC) && 0
1319 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1320 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1323 /* wait until we have space to put a new picture */
1324 SDL_LockMutex(is->pictq_mutex);
1326 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1327 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1329 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1330 !is->videoq.abort_request) {
1331 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1333 SDL_UnlockMutex(is->pictq_mutex);
1335 if (is->videoq.abort_request)
1338 vp = &is->pictq[is->pictq_windex];
1340 vp->duration = frame_delay;
1342 /* alloc or resize hardware picture buffer */
1345 vp->width != is->out_video_filter->inputs[0]->w ||
1346 vp->height != is->out_video_filter->inputs[0]->h) {
1348 vp->width != is->video_st->codec->width ||
1349 vp->height != is->video_st->codec->height) {
1355 /* the allocation must be done in the main thread to avoid
1357 event.type = FF_ALLOC_EVENT;
1358 event.user.data1 = is;
1359 SDL_PushEvent(&event);
1361 /* wait until the picture is allocated */
1362 SDL_LockMutex(is->pictq_mutex);
1363 while (!vp->allocated && !is->videoq.abort_request) {
1364 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1366 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1367 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1368 while (!vp->allocated) {
1369 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1372 SDL_UnlockMutex(is->pictq_mutex);
1374 if (is->videoq.abort_request)
1378 /* if the frame is not skipped, then display it */
1383 avfilter_unref_buffer(vp->picref);
1384 vp->picref = src_frame->opaque;
1387 /* get a pointer on the bitmap */
1388 SDL_LockYUVOverlay (vp->bmp);
1390 memset(&pict,0,sizeof(AVPicture));
1391 pict.data[0] = vp->bmp->pixels[0];
1392 pict.data[1] = vp->bmp->pixels[2];
1393 pict.data[2] = vp->bmp->pixels[1];
1395 pict.linesize[0] = vp->bmp->pitches[0];
1396 pict.linesize[1] = vp->bmp->pitches[2];
1397 pict.linesize[2] = vp->bmp->pitches[1];
1400 //FIXME use direct rendering
1401 av_picture_copy(&pict, (AVPicture *)src_frame,
1402 vp->pix_fmt, vp->width, vp->height);
1404 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1405 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1406 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1407 PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1408 if (is->img_convert_ctx == NULL) {
1409 fprintf(stderr, "Cannot initialize the conversion context\n");
1412 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1413 0, vp->height, pict.data, pict.linesize);
1415 /* update the bitmap content */
1416 SDL_UnlockYUVOverlay(vp->bmp);
1421 /* now we can update the picture count */
1422 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1423 is->pictq_windex = 0;
1424 SDL_LockMutex(is->pictq_mutex);
1425 vp->target_clock= compute_target_time(vp->pts, is);
1428 SDL_UnlockMutex(is->pictq_mutex);
1433 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1437 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1440 if (pkt->data == flush_pkt.data) {
1441 avcodec_flush_buffers(is->video_st->codec);
1443 SDL_LockMutex(is->pictq_mutex);
1444 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1445 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1446 is->pictq[i].target_clock= 0;
1448 while (is->pictq_size && !is->videoq.abort_request) {
1449 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1451 is->video_current_pos = -1;
1452 SDL_UnlockMutex(is->pictq_mutex);
1454 is->frame_last_pts = AV_NOPTS_VALUE;
1455 is->frame_last_delay = 0;
1456 is->frame_timer = (double)av_gettime() / 1000000.0;
1457 is->skip_frames = 1;
1458 is->skip_frames_index = 0;
1462 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1465 if (decoder_reorder_pts == -1) {
1466 *pts = frame->best_effort_timestamp;
1467 } else if (decoder_reorder_pts) {
1468 *pts = frame->pkt_pts;
1470 *pts = frame->pkt_dts;
1473 if (*pts == AV_NOPTS_VALUE) {
1477 is->skip_frames_index += 1;
1478 if(is->skip_frames_index >= is->skip_frames){
1479 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1494 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1496 AVFilterContext *ctx = codec->opaque;
1497 AVFilterBufferRef *ref;
1498 int perms = AV_PERM_WRITE;
1499 int i, w, h, stride[4];
1503 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1505 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1506 perms |= AV_PERM_NEG_LINESIZES;
1508 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1509 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1510 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1511 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1513 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1518 if(av_image_check_size(w, h, 0, codec))
1521 avcodec_align_dimensions2(codec, &w, &h, stride);
1522 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1526 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1529 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
1530 ref->video->w = codec->width;
1531 ref->video->h = codec->height;
1532 for(i = 0; i < 4; i ++) {
1533 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1534 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1537 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1539 pic->data[i] = ref->data[i];
1540 pic->linesize[i] = ref->linesize[i];
1544 pic->type = FF_BUFFER_TYPE_USER;
1545 pic->reordered_opaque = codec->reordered_opaque;
1546 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1547 else pic->pkt_pts = AV_NOPTS_VALUE;
1551 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1553 memset(pic->data, 0, sizeof(pic->data));
1554 avfilter_unref_buffer(pic->opaque);
1557 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1559 AVFilterBufferRef *ref = pic->opaque;
1561 if (pic->data[0] == NULL) {
1562 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1563 return codec->get_buffer(codec, pic);
1566 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1567 (codec->pix_fmt != ref->format)) {
1568 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1572 pic->reordered_opaque = codec->reordered_opaque;
1573 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1574 else pic->pkt_pts = AV_NOPTS_VALUE;
1578 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1580 FilterPriv *priv = ctx->priv;
1581 AVCodecContext *codec;
1582 if(!opaque) return -1;
1585 codec = priv->is->video_st->codec;
1586 codec->opaque = ctx;
1587 if((codec->codec->capabilities & CODEC_CAP_DR1)
1589 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1591 codec->get_buffer = input_get_buffer;
1592 codec->release_buffer = input_release_buffer;
1593 codec->reget_buffer = input_reget_buffer;
1594 codec->thread_safe_callbacks = 1;
1597 priv->frame = avcodec_alloc_frame();
1602 static void input_uninit(AVFilterContext *ctx)
1604 FilterPriv *priv = ctx->priv;
1605 av_free(priv->frame);
1608 static int input_request_frame(AVFilterLink *link)
1610 FilterPriv *priv = link->src->priv;
1611 AVFilterBufferRef *picref;
1616 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1617 av_free_packet(&pkt);
1621 if(priv->use_dr1 && priv->frame->opaque) {
1622 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1624 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1625 av_image_copy(picref->data, picref->linesize,
1626 priv->frame->data, priv->frame->linesize,
1627 picref->format, link->w, link->h);
1629 av_free_packet(&pkt);
1631 avfilter_copy_frame_props(picref, priv->frame);
1634 avfilter_start_frame(link, picref);
1635 avfilter_draw_slice(link, 0, link->h, 1);
1636 avfilter_end_frame(link);
1641 static int input_query_formats(AVFilterContext *ctx)
1643 FilterPriv *priv = ctx->priv;
1644 enum PixelFormat pix_fmts[] = {
1645 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1648 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
1652 static int input_config_props(AVFilterLink *link)
1654 FilterPriv *priv = link->src->priv;
1655 AVStream *s = priv->is->video_st;
1657 link->w = s->codec->width;
1658 link->h = s->codec->height;
1659 link->sample_aspect_ratio = s->sample_aspect_ratio.num ?
1660 s->sample_aspect_ratio : s->codec->sample_aspect_ratio;
1661 link->time_base = s->time_base;
1666 static AVFilter input_filter =
1668 .name = "ffplay_input",
1670 .priv_size = sizeof(FilterPriv),
1673 .uninit = input_uninit,
1675 .query_formats = input_query_formats,
1677 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1678 .outputs = (AVFilterPad[]) {{ .name = "default",
1679 .type = AVMEDIA_TYPE_VIDEO,
1680 .request_frame = input_request_frame,
1681 .config_props = input_config_props, },
1685 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1687 char sws_flags_str[128];
1689 enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1690 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
1691 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1692 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1693 graph->scale_sws_opts = av_strdup(sws_flags_str);
1695 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1696 NULL, is, graph)) < 0)
1698 #if FF_API_OLD_VSINK_API
1699 ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
1700 NULL, pix_fmts, graph);
1702 buffersink_params->pixel_fmts = pix_fmts;
1703 ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
1704 NULL, buffersink_params, graph);
1706 av_freep(&buffersink_params);
1711 AVFilterInOut *outputs = avfilter_inout_alloc();
1712 AVFilterInOut *inputs = avfilter_inout_alloc();
1714 outputs->name = av_strdup("in");
1715 outputs->filter_ctx = filt_src;
1716 outputs->pad_idx = 0;
1717 outputs->next = NULL;
1719 inputs->name = av_strdup("out");
1720 inputs->filter_ctx = filt_out;
1721 inputs->pad_idx = 0;
1722 inputs->next = NULL;
1724 if ((ret = avfilter_graph_parse(graph, vfilters, &inputs, &outputs, NULL)) < 0)
1727 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1731 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1734 is->out_video_filter = filt_out;
1739 #endif /* CONFIG_AVFILTER */
1741 static int video_thread(void *arg)
1743 VideoState *is = arg;
1744 AVFrame *frame= avcodec_alloc_frame();
1745 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1750 AVFilterGraph *graph = avfilter_graph_alloc();
1751 AVFilterContext *filt_out = NULL;
1752 int last_w = is->video_st->codec->width;
1753 int last_h = is->video_st->codec->height;
1755 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1757 filt_out = is->out_video_filter;
1761 #if !CONFIG_AVFILTER
1764 AVFilterBufferRef *picref;
1765 AVRational tb = filt_out->inputs[0]->time_base;
1767 while (is->paused && !is->videoq.abort_request)
1770 if ( last_w != is->video_st->codec->width
1771 || last_h != is->video_st->codec->height) {
1772 av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
1773 last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
1774 avfilter_graph_free(&graph);
1775 graph = avfilter_graph_alloc();
1776 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1778 filt_out = is->out_video_filter;
1779 last_w = is->video_st->codec->width;
1780 last_h = is->video_st->codec->height;
1782 ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
1784 avfilter_fill_frame_from_video_buffer_ref(frame, picref);
1785 pts_int = picref->pts;
1787 frame->opaque = picref;
1790 if (av_cmp_q(tb, is->video_st->time_base)) {
1791 av_unused int64_t pts1 = pts_int;
1792 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1793 av_dlog(NULL, "video_thread(): "
1794 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1795 tb.num, tb.den, pts1,
1796 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1799 ret = get_video_frame(is, frame, &pts_int, &pkt);
1801 av_free_packet(&pkt);
1804 if (ret < 0) goto the_end;
1811 pts = pts_int*av_q2d(is->video_st->time_base);
1813 ret = queue_picture(is, frame, pts, pos);
1819 stream_toggle_pause(is);
1823 avfilter_graph_free(&graph);
1829 static int subtitle_thread(void *arg)
1831 VideoState *is = arg;
1833 AVPacket pkt1, *pkt = &pkt1;
1837 int r, g, b, y, u, v, a;
1840 while (is->paused && !is->subtitleq.abort_request) {
1843 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1846 if(pkt->data == flush_pkt.data){
1847 avcodec_flush_buffers(is->subtitle_st->codec);
1850 SDL_LockMutex(is->subpq_mutex);
1851 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1852 !is->subtitleq.abort_request) {
1853 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1855 SDL_UnlockMutex(is->subpq_mutex);
1857 if (is->subtitleq.abort_request)
1860 sp = &is->subpq[is->subpq_windex];
1862 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1863 this packet, if any */
1865 if (pkt->pts != AV_NOPTS_VALUE)
1866 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1868 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1869 &got_subtitle, pkt);
1871 if (got_subtitle && sp->sub.format == 0) {
1874 for (i = 0; i < sp->sub.num_rects; i++)
1876 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1878 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1879 y = RGB_TO_Y_CCIR(r, g, b);
1880 u = RGB_TO_U_CCIR(r, g, b, 0);
1881 v = RGB_TO_V_CCIR(r, g, b, 0);
1882 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1886 /* now we can update the picture count */
1887 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1888 is->subpq_windex = 0;
1889 SDL_LockMutex(is->subpq_mutex);
1891 SDL_UnlockMutex(is->subpq_mutex);
1893 av_free_packet(pkt);
1898 /* copy samples for viewing in editor window */
1899 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1903 size = samples_size / sizeof(short);
1905 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1908 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1910 is->sample_array_index += len;
1911 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1912 is->sample_array_index = 0;
1917 /* return the new audio buffer size (samples can be added or deleted
1918 to get better sync if video or external master clock) */
1919 static int synchronize_audio(VideoState *is, short *samples,
1920 int samples_size1, double pts)
1922 int n, samples_size;
1925 n = 2 * is->audio_st->codec->channels;
1926 samples_size = samples_size1;
1928 /* if not master, then we try to remove or add samples to correct the clock */
1929 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1930 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1931 double diff, avg_diff;
1932 int wanted_size, min_size, max_size, nb_samples;
1934 ref_clock = get_master_clock(is);
1935 diff = get_audio_clock(is) - ref_clock;
1937 if (diff < AV_NOSYNC_THRESHOLD) {
1938 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
1939 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
1940 /* not enough measures to have a correct estimate */
1941 is->audio_diff_avg_count++;
1943 /* estimate the A-V difference */
1944 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
1946 if (fabs(avg_diff) >= is->audio_diff_threshold) {
1947 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
1948 nb_samples = samples_size / n;
1950 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1951 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
1952 if (wanted_size < min_size)
1953 wanted_size = min_size;
1954 else if (wanted_size > max_size)
1955 wanted_size = max_size;
1957 /* add or remove samples to correction the synchro */
1958 if (wanted_size < samples_size) {
1959 /* remove samples */
1960 samples_size = wanted_size;
1961 } else if (wanted_size > samples_size) {
1962 uint8_t *samples_end, *q;
1966 nb = (samples_size - wanted_size);
1967 samples_end = (uint8_t *)samples + samples_size - n;
1968 q = samples_end + n;
1970 memcpy(q, samples_end, n);
1974 samples_size = wanted_size;
1977 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
1978 diff, avg_diff, samples_size - samples_size1,
1979 is->audio_clock, is->video_clock, is->audio_diff_threshold);
1982 /* too big difference : may be initial PTS errors, so
1984 is->audio_diff_avg_count = 0;
1985 is->audio_diff_cum = 0;
1989 return samples_size;
1992 /* decode one audio frame and returns its uncompressed size */
1993 static int audio_decode_frame(VideoState *is, double *pts_ptr)
1995 AVPacket *pkt_temp = &is->audio_pkt_temp;
1996 AVPacket *pkt = &is->audio_pkt;
1997 AVCodecContext *dec= is->audio_st->codec;
1998 int n, len1, data_size;
2001 int flush_complete = 0;
2004 /* NOTE: the audio packet can contain several frames */
2005 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
2009 data_size = sizeof(is->audio_buf1);
2010 len1 = avcodec_decode_audio3(dec,
2011 (int16_t *)is->audio_buf1, &data_size,
2014 /* if error, we skip the frame */
2019 pkt_temp->data += len1;
2020 pkt_temp->size -= len1;
2022 if (data_size <= 0) {
2023 /* stop sending empty packets if the decoder is finished */
2024 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2029 if (dec->sample_fmt != is->audio_src_fmt) {
2030 if (is->reformat_ctx)
2031 av_audio_convert_free(is->reformat_ctx);
2032 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2033 dec->sample_fmt, 1, NULL, 0);
2034 if (!is->reformat_ctx) {
2035 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2036 av_get_sample_fmt_name(dec->sample_fmt),
2037 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2040 is->audio_src_fmt= dec->sample_fmt;
2043 if (is->reformat_ctx) {
2044 const void *ibuf[6]= {is->audio_buf1};
2045 void *obuf[6]= {is->audio_buf2};
2046 int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)};
2047 int ostride[6]= {2};
2048 int len= data_size/istride[0];
2049 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2050 printf("av_audio_convert() failed\n");
2053 is->audio_buf= is->audio_buf2;
2054 /* FIXME: existing code assume that data_size equals framesize*channels*2
2055 remove this legacy cruft */
2058 is->audio_buf= is->audio_buf1;
2061 /* if no pts, then compute it */
2062 pts = is->audio_clock;
2064 n = 2 * dec->channels;
2065 is->audio_clock += (double)data_size /
2066 (double)(n * dec->sample_rate);
2069 static double last_clock;
2070 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2071 is->audio_clock - last_clock,
2072 is->audio_clock, pts);
2073 last_clock = is->audio_clock;
2079 /* free the current packet */
2081 av_free_packet(pkt);
2083 if (is->paused || is->audioq.abort_request) {
2087 /* read next packet */
2088 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2091 if (pkt->data == flush_pkt.data)
2092 avcodec_flush_buffers(dec);
2094 pkt_temp->data = pkt->data;
2095 pkt_temp->size = pkt->size;
2097 /* if update the audio clock with the pts */
2098 if (pkt->pts != AV_NOPTS_VALUE) {
2099 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2104 /* prepare a new audio buffer */
2105 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2107 VideoState *is = opaque;
2108 int audio_size, len1;
2112 audio_callback_time = av_gettime();
2115 if (is->audio_buf_index >= is->audio_buf_size) {
2116 audio_size = audio_decode_frame(is, &pts);
2117 if (audio_size < 0) {
2118 /* if error, just output silence */
2119 is->audio_buf = is->audio_buf1;
2120 is->audio_buf_size = 1024;
2121 memset(is->audio_buf, 0, is->audio_buf_size);
2123 if (is->show_mode != SHOW_MODE_VIDEO)
2124 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2125 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2127 is->audio_buf_size = audio_size;
2129 is->audio_buf_index = 0;
2131 len1 = is->audio_buf_size - is->audio_buf_index;
2134 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2137 is->audio_buf_index += len1;
2139 bytes_per_sec = is->audio_st->codec->sample_rate *
2140 2 * is->audio_st->codec->channels;
2141 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2142 /* Let's assume the audio driver that is used by SDL has two periods. */
2143 is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
2144 is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
2147 /* open a given stream. Return 0 if OK */
2148 static int stream_component_open(VideoState *is, int stream_index)
2150 AVFormatContext *ic = is->ic;
2151 AVCodecContext *avctx;
2153 SDL_AudioSpec wanted_spec, spec;
2155 AVDictionaryEntry *t = NULL;
2157 if (stream_index < 0 || stream_index >= ic->nb_streams)
2159 avctx = ic->streams[stream_index]->codec;
2161 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index]);
2163 /* prepare audio output */
2164 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2165 if (avctx->channels > 0) {
2166 avctx->request_channels = FFMIN(2, avctx->channels);
2168 avctx->request_channels = 2;
2172 codec = avcodec_find_decoder(avctx->codec_id);
2173 switch(avctx->codec_type){
2174 case AVMEDIA_TYPE_AUDIO : if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
2175 case AVMEDIA_TYPE_SUBTITLE: if(subtitle_codec_name) codec= avcodec_find_decoder_by_name(subtitle_codec_name); break;
2176 case AVMEDIA_TYPE_VIDEO : if(video_codec_name ) codec= avcodec_find_decoder_by_name( video_codec_name); break;
2181 avctx->workaround_bugs = workaround_bugs;
2182 avctx->lowres = lowres;
2183 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2184 avctx->idct_algo= idct;
2185 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2186 avctx->skip_frame= skip_frame;
2187 avctx->skip_idct= skip_idct;
2188 avctx->skip_loop_filter= skip_loop_filter;
2189 avctx->error_recognition= error_recognition;
2190 avctx->error_concealment= error_concealment;
2192 if(codec->capabilities & CODEC_CAP_DR1)
2193 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2195 wanted_spec.freq = avctx->sample_rate;
2196 wanted_spec.channels = avctx->channels;
2198 avcodec_open2(avctx, codec, &opts) < 0)
2200 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2201 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2202 return AVERROR_OPTION_NOT_FOUND;
2205 /* prepare audio output */
2206 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2207 if(avctx->sample_rate <= 0 || avctx->channels <= 0){
2208 fprintf(stderr, "Invalid sample rate or channel count\n");
2211 wanted_spec.format = AUDIO_S16SYS;
2212 wanted_spec.silence = 0;
2213 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2214 wanted_spec.callback = sdl_audio_callback;
2215 wanted_spec.userdata = is;
2216 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2217 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2220 is->audio_hw_buf_size = spec.size;
2221 is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2224 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2225 switch(avctx->codec_type) {
2226 case AVMEDIA_TYPE_AUDIO:
2227 is->audio_stream = stream_index;
2228 is->audio_st = ic->streams[stream_index];
2229 is->audio_buf_size = 0;
2230 is->audio_buf_index = 0;
2232 /* init averaging filter */
2233 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2234 is->audio_diff_avg_count = 0;
2235 /* since we do not have a precise anough audio fifo fullness,
2236 we correct audio sync only if larger than this threshold */
2237 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2239 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2240 packet_queue_init(&is->audioq);
2243 case AVMEDIA_TYPE_VIDEO:
2244 is->video_stream = stream_index;
2245 is->video_st = ic->streams[stream_index];
2247 packet_queue_init(&is->videoq);
2248 is->video_tid = SDL_CreateThread(video_thread, is);
2250 case AVMEDIA_TYPE_SUBTITLE:
2251 is->subtitle_stream = stream_index;
2252 is->subtitle_st = ic->streams[stream_index];
2253 packet_queue_init(&is->subtitleq);
2255 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2263 static void stream_component_close(VideoState *is, int stream_index)
2265 AVFormatContext *ic = is->ic;
2266 AVCodecContext *avctx;
2268 if (stream_index < 0 || stream_index >= ic->nb_streams)
2270 avctx = ic->streams[stream_index]->codec;
2272 switch(avctx->codec_type) {
2273 case AVMEDIA_TYPE_AUDIO:
2274 packet_queue_abort(&is->audioq);
2278 packet_queue_end(&is->audioq);
2279 if (is->reformat_ctx)
2280 av_audio_convert_free(is->reformat_ctx);
2281 is->reformat_ctx = NULL;
2283 case AVMEDIA_TYPE_VIDEO:
2284 packet_queue_abort(&is->videoq);
2286 /* note: we also signal this mutex to make sure we deblock the
2287 video thread in all cases */
2288 SDL_LockMutex(is->pictq_mutex);
2289 SDL_CondSignal(is->pictq_cond);
2290 SDL_UnlockMutex(is->pictq_mutex);
2292 SDL_WaitThread(is->video_tid, NULL);
2294 packet_queue_end(&is->videoq);
2296 case AVMEDIA_TYPE_SUBTITLE:
2297 packet_queue_abort(&is->subtitleq);
2299 /* note: we also signal this mutex to make sure we deblock the
2300 video thread in all cases */
2301 SDL_LockMutex(is->subpq_mutex);
2302 is->subtitle_stream_changed = 1;
2304 SDL_CondSignal(is->subpq_cond);
2305 SDL_UnlockMutex(is->subpq_mutex);
2307 SDL_WaitThread(is->subtitle_tid, NULL);
2309 packet_queue_end(&is->subtitleq);
2315 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2316 avcodec_close(avctx);
2317 switch(avctx->codec_type) {
2318 case AVMEDIA_TYPE_AUDIO:
2319 is->audio_st = NULL;
2320 is->audio_stream = -1;
2322 case AVMEDIA_TYPE_VIDEO:
2323 is->video_st = NULL;
2324 is->video_stream = -1;
2326 case AVMEDIA_TYPE_SUBTITLE:
2327 is->subtitle_st = NULL;
2328 is->subtitle_stream = -1;
2335 /* since we have only one decoding thread, we can use a global
2336 variable instead of a thread local variable */
2337 static VideoState *global_video_state;
2339 static int decode_interrupt_cb(void)
2341 return (global_video_state && global_video_state->abort_request);
2344 /* this thread gets the stream from the disk or the network */
2345 static int read_thread(void *arg)
2347 VideoState *is = arg;
2348 AVFormatContext *ic = NULL;
2350 int st_index[AVMEDIA_TYPE_NB];
2351 AVPacket pkt1, *pkt = &pkt1;
2353 int pkt_in_play_range = 0;
2354 AVDictionaryEntry *t;
2355 AVDictionary **opts;
2356 int orig_nb_streams;
2358 memset(st_index, -1, sizeof(st_index));
2359 is->video_stream = -1;
2360 is->audio_stream = -1;
2361 is->subtitle_stream = -1;
2363 global_video_state = is;
2364 avio_set_interrupt_cb(decode_interrupt_cb);
2366 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2368 print_error(is->filename, err);
2372 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2373 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2374 ret = AVERROR_OPTION_NOT_FOUND;
2380 ic->flags |= AVFMT_FLAG_GENPTS;
2382 opts = setup_find_stream_info_opts(ic, codec_opts);
2383 orig_nb_streams = ic->nb_streams;
2385 err = avformat_find_stream_info(ic, opts);
2387 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2391 for (i = 0; i < orig_nb_streams; i++)
2392 av_dict_free(&opts[i]);
2396 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2399 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2401 /* if seeking requested, we execute it */
2402 if (start_time != AV_NOPTS_VALUE) {
2405 timestamp = start_time;
2406 /* add the stream start time */
2407 if (ic->start_time != AV_NOPTS_VALUE)
2408 timestamp += ic->start_time;
2409 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2411 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2412 is->filename, (double)timestamp / AV_TIME_BASE);
2416 for (i = 0; i < ic->nb_streams; i++)
2417 ic->streams[i]->discard = AVDISCARD_ALL;
2419 st_index[AVMEDIA_TYPE_VIDEO] =
2420 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2421 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2423 st_index[AVMEDIA_TYPE_AUDIO] =
2424 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2425 wanted_stream[AVMEDIA_TYPE_AUDIO],
2426 st_index[AVMEDIA_TYPE_VIDEO],
2429 st_index[AVMEDIA_TYPE_SUBTITLE] =
2430 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2431 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2432 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2433 st_index[AVMEDIA_TYPE_AUDIO] :
2434 st_index[AVMEDIA_TYPE_VIDEO]),
2437 av_dump_format(ic, 0, is->filename, 0);
2440 is->show_mode = show_mode;
2442 /* open the streams */
2443 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2444 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2448 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2449 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2451 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2452 if (is->show_mode == SHOW_MODE_NONE)
2453 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2455 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2456 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2459 if (is->video_stream < 0 && is->audio_stream < 0) {
2460 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2466 if (is->abort_request)
2468 if (is->paused != is->last_paused) {
2469 is->last_paused = is->paused;
2471 is->read_pause_return= av_read_pause(ic);
2475 #if CONFIG_RTSP_DEMUXER
2476 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2477 /* wait 10 ms to avoid trying to get another packet */
2484 int64_t seek_target= is->seek_pos;
2485 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2486 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2487 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2488 // of the seek_pos/seek_rel variables
2490 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2492 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2494 if (is->audio_stream >= 0) {
2495 packet_queue_flush(&is->audioq);
2496 packet_queue_put(&is->audioq, &flush_pkt);
2498 if (is->subtitle_stream >= 0) {
2499 packet_queue_flush(&is->subtitleq);
2500 packet_queue_put(&is->subtitleq, &flush_pkt);
2502 if (is->video_stream >= 0) {
2503 packet_queue_flush(&is->videoq);
2504 packet_queue_put(&is->videoq, &flush_pkt);
2511 /* if the queue are full, no need to read more */
2512 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2513 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2514 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2515 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2521 if(is->video_stream >= 0){
2522 av_init_packet(pkt);
2525 pkt->stream_index= is->video_stream;
2526 packet_queue_put(&is->videoq, pkt);
2528 if (is->audio_stream >= 0 &&
2529 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2530 av_init_packet(pkt);
2533 pkt->stream_index = is->audio_stream;
2534 packet_queue_put(&is->audioq, pkt);
2537 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2538 if(loop!=1 && (!loop || --loop)){
2539 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2548 ret = av_read_frame(ic, pkt);
2550 if (ret == AVERROR_EOF || url_feof(ic->pb))
2552 if (ic->pb && ic->pb->error)
2554 SDL_Delay(100); /* wait for user event */
2557 /* check if packet is in play range specified by user, then queue, otherwise discard */
2558 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2559 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2560 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2561 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2562 <= ((double)duration/1000000);
2563 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2564 packet_queue_put(&is->audioq, pkt);
2565 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2566 packet_queue_put(&is->videoq, pkt);
2567 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2568 packet_queue_put(&is->subtitleq, pkt);
2570 av_free_packet(pkt);
2573 /* wait until the end */
2574 while (!is->abort_request) {
2580 /* disable interrupting */
2581 global_video_state = NULL;
2583 /* close each stream */
2584 if (is->audio_stream >= 0)
2585 stream_component_close(is, is->audio_stream);
2586 if (is->video_stream >= 0)
2587 stream_component_close(is, is->video_stream);
2588 if (is->subtitle_stream >= 0)
2589 stream_component_close(is, is->subtitle_stream);
2591 av_close_input_file(is->ic);
2592 is->ic = NULL; /* safety */
2594 avio_set_interrupt_cb(NULL);
2599 event.type = FF_QUIT_EVENT;
2600 event.user.data1 = is;
2601 SDL_PushEvent(&event);
2606 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2610 is = av_mallocz(sizeof(VideoState));
2613 av_strlcpy(is->filename, filename, sizeof(is->filename));
2614 is->iformat = iformat;
2618 /* start video display */
2619 is->pictq_mutex = SDL_CreateMutex();
2620 is->pictq_cond = SDL_CreateCond();
2622 is->subpq_mutex = SDL_CreateMutex();
2623 is->subpq_cond = SDL_CreateCond();
2625 is->av_sync_type = av_sync_type;
2626 is->read_tid = SDL_CreateThread(read_thread, is);
2627 if (!is->read_tid) {
2634 static void stream_cycle_channel(VideoState *is, int codec_type)
2636 AVFormatContext *ic = is->ic;
2637 int start_index, stream_index;
2640 if (codec_type == AVMEDIA_TYPE_VIDEO)
2641 start_index = is->video_stream;
2642 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2643 start_index = is->audio_stream;
2645 start_index = is->subtitle_stream;
2646 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2648 stream_index = start_index;
2650 if (++stream_index >= is->ic->nb_streams)
2652 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2659 if (stream_index == start_index)
2661 st = ic->streams[stream_index];
2662 if (st->codec->codec_type == codec_type) {
2663 /* check that parameters are OK */
2664 switch(codec_type) {
2665 case AVMEDIA_TYPE_AUDIO:
2666 if (st->codec->sample_rate != 0 &&
2667 st->codec->channels != 0)
2670 case AVMEDIA_TYPE_VIDEO:
2671 case AVMEDIA_TYPE_SUBTITLE:
2679 stream_component_close(is, start_index);
2680 stream_component_open(is, stream_index);
2684 static void toggle_full_screen(VideoState *is)
2686 is_full_screen = !is_full_screen;
2690 static void toggle_pause(VideoState *is)
2692 stream_toggle_pause(is);
2696 static void step_to_next_frame(VideoState *is)
2698 /* if the stream is paused unpause it, then step */
2700 stream_toggle_pause(is);
2704 static void toggle_audio_display(VideoState *is)
2706 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2707 is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
2708 fill_rectangle(screen,
2709 is->xleft, is->ytop, is->width, is->height,
2711 SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
2714 /* handle an event sent by the GUI */
2715 static void event_loop(VideoState *cur_stream)
2718 double incr, pos, frac;
2722 SDL_WaitEvent(&event);
2723 switch(event.type) {
2725 if (exit_on_keydown) {
2726 do_exit(cur_stream);
2729 switch(event.key.keysym.sym) {
2732 do_exit(cur_stream);
2735 toggle_full_screen(cur_stream);
2739 toggle_pause(cur_stream);
2741 case SDLK_s: //S: Step to next frame
2742 step_to_next_frame(cur_stream);
2745 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2748 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2751 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2754 toggle_audio_display(cur_stream);
2768 if (seek_by_bytes) {
2769 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2770 pos= cur_stream->video_current_pos;
2771 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2772 pos= cur_stream->audio_pkt.pos;
2774 pos = avio_tell(cur_stream->ic->pb);
2775 if (cur_stream->ic->bit_rate)
2776 incr *= cur_stream->ic->bit_rate / 8.0;
2780 stream_seek(cur_stream, pos, incr, 1);
2782 pos = get_master_clock(cur_stream);
2784 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2791 case SDL_MOUSEBUTTONDOWN:
2792 if (exit_on_mousedown) {
2793 do_exit(cur_stream);
2796 case SDL_MOUSEMOTION:
2797 if(event.type ==SDL_MOUSEBUTTONDOWN){
2800 if(event.motion.state != SDL_PRESSED)
2804 if(seek_by_bytes || cur_stream->ic->duration<=0){
2805 uint64_t size= avio_size(cur_stream->ic->pb);
2806 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2810 int tns, thh, tmm, tss;
2811 tns = cur_stream->ic->duration/1000000LL;
2813 tmm = (tns%3600)/60;
2815 frac = x/cur_stream->width;
2820 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2821 hh, mm, ss, thh, tmm, tss);
2822 ts = frac*cur_stream->ic->duration;
2823 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2824 ts += cur_stream->ic->start_time;
2825 stream_seek(cur_stream, ts, 0, 0);
2828 case SDL_VIDEORESIZE:
2829 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2830 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2831 screen_width = cur_stream->width = event.resize.w;
2832 screen_height= cur_stream->height= event.resize.h;
2836 do_exit(cur_stream);
2838 case FF_ALLOC_EVENT:
2839 video_open(event.user.data1);
2840 alloc_picture(event.user.data1);
2842 case FF_REFRESH_EVENT:
2843 video_refresh(event.user.data1);
2844 cur_stream->refresh=0;
2852 static int opt_frame_size(const char *opt, const char *arg)
2854 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
2855 return opt_default("video_size", arg);
2858 static int opt_width(const char *opt, const char *arg)
2860 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2864 static int opt_height(const char *opt, const char *arg)
2866 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2870 static int opt_format(const char *opt, const char *arg)
2872 file_iformat = av_find_input_format(arg);
2873 if (!file_iformat) {
2874 fprintf(stderr, "Unknown input format: %s\n", arg);
2875 return AVERROR(EINVAL);
2880 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2882 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
2883 return opt_default("pixel_format", arg);
2886 static int opt_sync(const char *opt, const char *arg)
2888 if (!strcmp(arg, "audio"))
2889 av_sync_type = AV_SYNC_AUDIO_MASTER;
2890 else if (!strcmp(arg, "video"))
2891 av_sync_type = AV_SYNC_VIDEO_MASTER;
2892 else if (!strcmp(arg, "ext"))
2893 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2895 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2901 static int opt_seek(const char *opt, const char *arg)
2903 start_time = parse_time_or_die(opt, arg, 1);
2907 static int opt_duration(const char *opt, const char *arg)
2909 duration = parse_time_or_die(opt, arg, 1);
2913 static int opt_show_mode(const char *opt, const char *arg)
2915 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
2916 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
2917 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
2918 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
2922 static void opt_input_file(void *optctx, const char *filename)
2924 if (input_filename) {
2925 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
2926 filename, input_filename);
2929 if (!strcmp(filename, "-"))
2931 input_filename = filename;
2934 static int opt_codec(void *o, const char *opt, const char *arg)
2936 switch(opt[strlen(opt)-1]){
2937 case 'a' : audio_codec_name = arg; break;
2938 case 's' : subtitle_codec_name = arg; break;
2939 case 'v' : video_codec_name = arg; break;
2946 static const OptionDef options[] = {
2947 #include "cmdutils_common_opts.h"
2948 { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
2949 { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
2950 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2951 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
2952 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2953 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2954 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
2955 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
2956 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
2957 { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
2958 { "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
2959 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
2960 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
2961 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2962 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
2963 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
2964 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
2965 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
2966 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
2967 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
2968 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
2969 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
2970 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
2971 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
2972 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
2973 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
2974 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
2975 { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
2976 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
2977 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
2978 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
2979 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
2980 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
2981 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
2983 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
2985 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
2986 { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
2987 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
2988 { "i", OPT_BOOL, {(void *)&dummy}, "read specified file", "input_file"},
2989 { "codec", HAS_ARG | OPT_FUNC2, {(void*)opt_codec}, "force decoder", "decoder" },
2993 static void show_usage(void)
2995 printf("Simple media player\n");
2996 printf("usage: %s [options] input_file\n", program_name);
3000 static int opt_help(const char *opt, const char *arg)
3002 const AVClass *class;
3003 av_log_set_callback(log_callback_help);
3005 show_help_options(options, "Main options:\n",
3007 show_help_options(options, "\nAdvanced options:\n",
3008 OPT_EXPERT, OPT_EXPERT);
3010 class = avcodec_get_class();
3011 av_opt_show2(&class, NULL,
3012 AV_OPT_FLAG_DECODING_PARAM, 0);
3014 class = avformat_get_class();
3015 av_opt_show2(&class, NULL,
3016 AV_OPT_FLAG_DECODING_PARAM, 0);
3017 #if !CONFIG_AVFILTER
3019 class = sws_get_class();
3020 av_opt_show2(&class, NULL,
3021 AV_OPT_FLAG_ENCODING_PARAM, 0);
3023 printf("\nWhile playing:\n"
3025 "f toggle full screen\n"
3027 "a cycle audio channel\n"
3028 "v cycle video channel\n"
3029 "t cycle subtitle channel\n"
3030 "w show audio waves\n"
3031 "s activate frame-step mode\n"
3032 "left/right seek backward/forward 10 seconds\n"
3033 "down/up seek backward/forward 1 minute\n"
3034 "mouse click seek to percentage in file corresponding to fraction of width\n"
3039 static int lockmgr(void **mtx, enum AVLockOp op)
3042 case AV_LOCK_CREATE:
3043 *mtx = SDL_CreateMutex();
3047 case AV_LOCK_OBTAIN:
3048 return !!SDL_LockMutex(*mtx);
3049 case AV_LOCK_RELEASE:
3050 return !!SDL_UnlockMutex(*mtx);
3051 case AV_LOCK_DESTROY:
3052 SDL_DestroyMutex(*mtx);
3058 /* Called from the main */
3059 int main(int argc, char **argv)
3064 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3065 parse_loglevel(argc, argv, options);
3067 /* register all codecs, demux and protocols */
3068 avcodec_register_all();
3070 avdevice_register_all();
3073 avfilter_register_all();
3081 parse_options(NULL, argc, argv, options, opt_input_file);
3083 if (!input_filename) {
3085 fprintf(stderr, "An input file must be specified\n");
3086 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3090 if (display_disable) {
3093 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3095 flags &= ~SDL_INIT_AUDIO;
3096 #if !defined(__MINGW32__) && !defined(__APPLE__)
3097 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3099 if (SDL_Init (flags)) {
3100 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3101 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3105 if (!display_disable) {
3106 #if HAVE_SDL_VIDEO_SIZE
3107 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3108 fs_screen_width = vi->current_w;
3109 fs_screen_height = vi->current_h;
3113 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3114 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3115 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3117 if (av_lockmgr_register(lockmgr)) {
3118 fprintf(stderr, "Could not initialize lock manager!\n");
3122 av_init_packet(&flush_pkt);
3123 flush_pkt.data= "FLUSH";
3125 is = stream_open(input_filename, file_iformat);
3127 fprintf(stderr, "Failed to initialize VideoState!\n");