2 * Copyright (c) 2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * simple media player based on the FFmpeg libraries
31 #include "libavutil/avstring.h"
32 #include "libavutil/colorspace.h"
33 #include "libavutil/mathematics.h"
34 #include "libavutil/pixdesc.h"
35 #include "libavutil/imgutils.h"
36 #include "libavutil/dict.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/avassert.h"
40 #include "libavformat/avformat.h"
41 #include "libavdevice/avdevice.h"
42 #include "libswscale/swscale.h"
43 #include "libavutil/opt.h"
44 #include "libavcodec/avfft.h"
45 #include "libswresample/swresample.h"
48 # include "libavfilter/avcodec.h"
49 # include "libavfilter/avfilter.h"
50 # include "libavfilter/avfiltergraph.h"
51 # include "libavfilter/buffersink.h"
55 #include <SDL_thread.h>
62 const char program_name[] = "ffplay";
63 const int program_birth_year = 2003;
65 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
68 /* SDL audio buffer size, in samples. Should be small to have precise
69 A/V sync as SDL does not have hardware buffer fullness info. */
70 #define SDL_AUDIO_BUFFER_SIZE 1024
72 /* no AV sync correction is done if below the AV sync threshold */
73 #define AV_SYNC_THRESHOLD 0.01
74 /* no AV correction is done if too big error */
75 #define AV_NOSYNC_THRESHOLD 10.0
77 /* maximum audio speed change to get correct sync */
78 #define SAMPLE_CORRECTION_PERCENT_MAX 10
80 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
81 #define AUDIO_DIFF_AVG_NB 20
83 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
84 #define SAMPLE_ARRAY_SIZE (2 * 65536)
86 static int sws_flags = SWS_BICUBIC;
88 typedef struct PacketQueue {
89 AVPacketList *first_pkt, *last_pkt;
97 #define VIDEO_PICTURE_QUEUE_SIZE 2
98 #define SUBPICTURE_QUEUE_SIZE 4
100 typedef struct VideoPicture {
101 double pts; ///< presentation time stamp for this picture
102 double duration; ///< expected duration of the frame
103 int64_t pos; ///< byte position in file
106 int width, height; /* source height & width */
107 AVRational sample_aspect_ratio;
110 enum PixelFormat pix_fmt;
113 AVFilterBufferRef *picref;
117 typedef struct SubPicture {
118 double pts; /* presentation time stamp for this picture */
123 AV_SYNC_AUDIO_MASTER, /* default choice */
124 AV_SYNC_VIDEO_MASTER,
125 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
128 typedef struct VideoState {
129 SDL_Thread *read_tid;
130 SDL_Thread *video_tid;
131 SDL_Thread *refresh_tid;
132 AVInputFormat *iformat;
142 int read_pause_return;
148 double external_clock; /* external clock base */
149 int64_t external_clock_time;
152 double audio_diff_cum; /* used for AV difference average computation */
153 double audio_diff_avg_coef;
154 double audio_diff_threshold;
155 int audio_diff_avg_count;
158 int audio_hw_buf_size;
159 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
160 uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
163 unsigned int audio_buf_size; /* in bytes */
164 int audio_buf_index; /* in bytes */
165 int audio_write_buf_size;
166 AVPacket audio_pkt_temp;
168 enum AVSampleFormat audio_src_fmt;
169 enum AVSampleFormat audio_tgt_fmt;
170 int audio_src_channels;
171 int audio_tgt_channels;
172 int64_t audio_src_channel_layout;
173 int64_t audio_tgt_channel_layout;
176 struct SwrContext *swr_ctx;
177 double audio_current_pts;
178 double audio_current_pts_drift;
179 int frame_drops_early;
180 int frame_drops_late;
184 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
186 int16_t sample_array[SAMPLE_ARRAY_SIZE];
187 int sample_array_index;
191 FFTSample *rdft_data;
194 SDL_Thread *subtitle_tid;
196 int subtitle_stream_changed;
197 AVStream *subtitle_st;
198 PacketQueue subtitleq;
199 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
200 int subpq_size, subpq_rindex, subpq_windex;
201 SDL_mutex *subpq_mutex;
202 SDL_cond *subpq_cond;
205 double frame_last_pts;
206 double frame_last_duration;
207 double frame_last_dropped_pts;
208 double frame_last_returned_time;
209 double frame_last_filter_delay;
210 int64_t frame_last_dropped_pos;
211 double video_clock; ///< pts of last decoded frame / predicted pts of next decoded frame
215 double video_current_pts; ///< current displayed pts (different from video_clock if frame fifos are used)
216 double video_current_pts_drift; ///< video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
217 int64_t video_current_pos; ///< current displayed file pos
218 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
219 int pictq_size, pictq_rindex, pictq_windex;
220 SDL_mutex *pictq_mutex;
221 SDL_cond *pictq_cond;
223 struct SwsContext *img_convert_ctx;
227 int width, height, xleft, ytop;
231 AVFilterContext *out_video_filter; ///< the last filter in the video chain
237 typedef struct AllocEventProps {
242 static int opt_help(const char *opt, const char *arg);
244 /* options specified by the user */
245 static AVInputFormat *file_iformat;
246 static const char *input_filename;
247 static const char *window_title;
248 static int fs_screen_width;
249 static int fs_screen_height;
250 static int screen_width = 0;
251 static int screen_height = 0;
252 static int audio_disable;
253 static int video_disable;
254 static int wanted_stream[AVMEDIA_TYPE_NB] = {
255 [AVMEDIA_TYPE_AUDIO] = -1,
256 [AVMEDIA_TYPE_VIDEO] = -1,
257 [AVMEDIA_TYPE_SUBTITLE] = -1,
259 static int seek_by_bytes = -1;
260 static int display_disable;
261 static int show_status = 1;
262 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
263 static int64_t start_time = AV_NOPTS_VALUE;
264 static int64_t duration = AV_NOPTS_VALUE;
265 static int workaround_bugs = 1;
267 static int genpts = 0;
268 static int lowres = 0;
269 static int idct = FF_IDCT_AUTO;
270 static enum AVDiscard skip_frame = AVDISCARD_DEFAULT;
271 static enum AVDiscard skip_idct = AVDISCARD_DEFAULT;
272 static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
273 static int error_concealment = 3;
274 static int decoder_reorder_pts = -1;
276 static int exit_on_keydown;
277 static int exit_on_mousedown;
279 static int framedrop = -1;
280 static enum ShowMode show_mode = SHOW_MODE_NONE;
281 static const char *audio_codec_name;
282 static const char *subtitle_codec_name;
283 static const char *video_codec_name;
284 static int rdftspeed = 20;
286 static char *vfilters = NULL;
289 /* current context */
290 static int is_full_screen;
291 static int64_t audio_callback_time;
293 static AVPacket flush_pkt;
295 #define FF_ALLOC_EVENT (SDL_USEREVENT)
296 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
297 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
299 static SDL_Surface *screen;
301 void av_noreturn exit_program(int ret)
306 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
310 /* duplicate the packet */
311 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
314 pkt1 = av_malloc(sizeof(AVPacketList));
321 SDL_LockMutex(q->mutex);
327 q->last_pkt->next = pkt1;
330 q->size += pkt1->pkt.size + sizeof(*pkt1);
331 /* XXX: should duplicate packet data in DV case */
332 SDL_CondSignal(q->cond);
334 SDL_UnlockMutex(q->mutex);
338 /* packet queue handling */
339 static void packet_queue_init(PacketQueue *q)
341 memset(q, 0, sizeof(PacketQueue));
342 q->mutex = SDL_CreateMutex();
343 q->cond = SDL_CreateCond();
344 packet_queue_put(q, &flush_pkt);
347 static void packet_queue_flush(PacketQueue *q)
349 AVPacketList *pkt, *pkt1;
351 SDL_LockMutex(q->mutex);
352 for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
354 av_free_packet(&pkt->pkt);
361 SDL_UnlockMutex(q->mutex);
364 static void packet_queue_end(PacketQueue *q)
366 packet_queue_flush(q);
367 SDL_DestroyMutex(q->mutex);
368 SDL_DestroyCond(q->cond);
371 static void packet_queue_abort(PacketQueue *q)
373 SDL_LockMutex(q->mutex);
375 q->abort_request = 1;
377 SDL_CondSignal(q->cond);
379 SDL_UnlockMutex(q->mutex);
382 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
383 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
388 SDL_LockMutex(q->mutex);
391 if (q->abort_request) {
398 q->first_pkt = pkt1->next;
402 q->size -= pkt1->pkt.size + sizeof(*pkt1);
411 SDL_CondWait(q->cond, q->mutex);
414 SDL_UnlockMutex(q->mutex);
418 static inline void fill_rectangle(SDL_Surface *screen,
419 int x, int y, int w, int h, int color)
426 SDL_FillRect(screen, &rect, color);
429 #define ALPHA_BLEND(a, oldp, newp, s)\
430 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
432 #define RGBA_IN(r, g, b, a, s)\
434 unsigned int v = ((const uint32_t *)(s))[0];\
435 a = (v >> 24) & 0xff;\
436 r = (v >> 16) & 0xff;\
437 g = (v >> 8) & 0xff;\
441 #define YUVA_IN(y, u, v, a, s, pal)\
443 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
444 a = (val >> 24) & 0xff;\
445 y = (val >> 16) & 0xff;\
446 u = (val >> 8) & 0xff;\
450 #define YUVA_OUT(d, y, u, v, a)\
452 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
458 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
460 int wrap, wrap3, width2, skip2;
461 int y, u, v, a, u1, v1, a1, w, h;
462 uint8_t *lum, *cb, *cr;
465 int dstx, dsty, dstw, dsth;
467 dstw = av_clip(rect->w, 0, imgw);
468 dsth = av_clip(rect->h, 0, imgh);
469 dstx = av_clip(rect->x, 0, imgw - dstw);
470 dsty = av_clip(rect->y, 0, imgh - dsth);
471 lum = dst->data[0] + dsty * dst->linesize[0];
472 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
473 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
475 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
477 wrap = dst->linesize[0];
478 wrap3 = rect->pict.linesize[0];
479 p = rect->pict.data[0];
480 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
488 YUVA_IN(y, u, v, a, p, pal);
489 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
490 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
491 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
497 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
498 YUVA_IN(y, u, v, a, p, pal);
502 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
504 YUVA_IN(y, u, v, a, p + BPP, pal);
508 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
509 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
510 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
517 YUVA_IN(y, u, v, a, p, pal);
518 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
519 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
520 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
524 p += wrap3 - dstw * BPP;
525 lum += wrap - dstw - dstx;
526 cb += dst->linesize[1] - width2 - skip2;
527 cr += dst->linesize[2] - width2 - skip2;
529 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
535 YUVA_IN(y, u, v, a, p, pal);
539 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
542 YUVA_IN(y, u, v, a, p, pal);
546 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
547 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
548 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
554 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
555 YUVA_IN(y, u, v, a, p, pal);
559 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
561 YUVA_IN(y, u, v, a, p + BPP, pal);
565 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
569 YUVA_IN(y, u, v, a, p, pal);
573 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
575 YUVA_IN(y, u, v, a, p + BPP, pal);
579 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
581 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
582 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
586 p += -wrap3 + 2 * BPP;
590 YUVA_IN(y, u, v, a, p, pal);
594 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
597 YUVA_IN(y, u, v, a, p, pal);
601 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
602 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
603 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
609 p += wrap3 + (wrap3 - dstw * BPP);
610 lum += wrap + (wrap - dstw - dstx);
611 cb += dst->linesize[1] - width2 - skip2;
612 cr += dst->linesize[2] - width2 - skip2;
614 /* handle odd height */
621 YUVA_IN(y, u, v, a, p, pal);
622 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
623 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
624 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
630 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
631 YUVA_IN(y, u, v, a, p, pal);
635 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
637 YUVA_IN(y, u, v, a, p + BPP, pal);
641 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
642 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
643 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
650 YUVA_IN(y, u, v, a, p, pal);
651 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
652 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
653 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
658 static void free_subpicture(SubPicture *sp)
660 avsubtitle_free(&sp->sub);
663 static void video_image_display(VideoState *is)
669 int width, height, x, y;
673 vp = &is->pictq[is->pictq_rindex];
675 if (vp->sample_aspect_ratio.num == 0)
678 aspect_ratio = av_q2d(vp->sample_aspect_ratio);
680 if (aspect_ratio <= 0.0)
682 aspect_ratio *= (float)vp->width / (float)vp->height;
684 if (is->subtitle_st) {
685 if (is->subpq_size > 0) {
686 sp = &is->subpq[is->subpq_rindex];
688 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
689 SDL_LockYUVOverlay (vp->bmp);
691 pict.data[0] = vp->bmp->pixels[0];
692 pict.data[1] = vp->bmp->pixels[2];
693 pict.data[2] = vp->bmp->pixels[1];
695 pict.linesize[0] = vp->bmp->pitches[0];
696 pict.linesize[1] = vp->bmp->pitches[2];
697 pict.linesize[2] = vp->bmp->pitches[1];
699 for (i = 0; i < sp->sub.num_rects; i++)
700 blend_subrect(&pict, sp->sub.rects[i],
701 vp->bmp->w, vp->bmp->h);
703 SDL_UnlockYUVOverlay (vp->bmp);
709 /* XXX: we suppose the screen has a 1.0 pixel ratio */
711 width = ((int)rint(height * aspect_ratio)) & ~1;
712 if (width > is->width) {
714 height = ((int)rint(width / aspect_ratio)) & ~1;
716 x = (is->width - width) / 2;
717 y = (is->height - height) / 2;
718 is->no_background = 0;
719 rect.x = is->xleft + x;
720 rect.y = is->ytop + y;
721 rect.w = FFMAX(width, 1);
722 rect.h = FFMAX(height, 1);
723 SDL_DisplayYUVOverlay(vp->bmp, &rect);
727 static inline int compute_mod(int a, int b)
729 return a < 0 ? a%b + b : a%b;
732 static void video_audio_display(VideoState *s)
734 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
735 int ch, channels, h, h2, bgcolor, fgcolor;
737 int rdft_bits, nb_freq;
739 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
741 nb_freq = 1 << (rdft_bits - 1);
743 /* compute display index : center on currently output samples */
744 channels = s->audio_tgt_channels;
745 nb_display_channels = channels;
747 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
749 delay = s->audio_write_buf_size;
752 /* to be more precise, we take into account the time spent since
753 the last buffer computation */
754 if (audio_callback_time) {
755 time_diff = av_gettime() - audio_callback_time;
756 delay -= (time_diff * s->audio_tgt_freq) / 1000000;
759 delay += 2 * data_used;
760 if (delay < data_used)
763 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
764 if (s->show_mode == SHOW_MODE_WAVES) {
766 for (i = 0; i < 1000; i += channels) {
767 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
768 int a = s->sample_array[idx];
769 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
770 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
771 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
773 if (h < score && (b ^ c) < 0) {
780 s->last_i_start = i_start;
782 i_start = s->last_i_start;
785 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
786 if (s->show_mode == SHOW_MODE_WAVES) {
787 fill_rectangle(screen,
788 s->xleft, s->ytop, s->width, s->height,
791 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
793 /* total height for one channel */
794 h = s->height / nb_display_channels;
795 /* graph height / 2 */
797 for (ch = 0; ch < nb_display_channels; ch++) {
799 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
800 for (x = 0; x < s->width; x++) {
801 y = (s->sample_array[i] * h2) >> 15;
808 fill_rectangle(screen,
809 s->xleft + x, ys, 1, y,
812 if (i >= SAMPLE_ARRAY_SIZE)
813 i -= SAMPLE_ARRAY_SIZE;
817 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
819 for (ch = 1; ch < nb_display_channels; ch++) {
820 y = s->ytop + ch * h;
821 fill_rectangle(screen,
822 s->xleft, y, s->width, 1,
825 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
827 nb_display_channels= FFMIN(nb_display_channels, 2);
828 if (rdft_bits != s->rdft_bits) {
829 av_rdft_end(s->rdft);
830 av_free(s->rdft_data);
831 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
832 s->rdft_bits = rdft_bits;
833 s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
837 for (ch = 0; ch < nb_display_channels; ch++) {
838 data[ch] = s->rdft_data + 2 * nb_freq * ch;
840 for (x = 0; x < 2 * nb_freq; x++) {
841 double w = (x-nb_freq) * (1.0 / nb_freq);
842 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
844 if (i >= SAMPLE_ARRAY_SIZE)
845 i -= SAMPLE_ARRAY_SIZE;
847 av_rdft_calc(s->rdft, data[ch]);
849 // least efficient way to do this, we should of course directly access it but its more than fast enough
850 for (y = 0; y < s->height; y++) {
851 double w = 1 / sqrt(nb_freq);
852 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]));
853 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
854 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
857 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
859 fill_rectangle(screen,
860 s->xpos, s->height-y, 1, 1,
864 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
867 if (s->xpos >= s->width)
872 static void stream_close(VideoState *is)
876 /* XXX: use a special url_shutdown call to abort parse cleanly */
877 is->abort_request = 1;
878 SDL_WaitThread(is->read_tid, NULL);
879 SDL_WaitThread(is->refresh_tid, NULL);
881 /* free all pictures */
882 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
886 avfilter_unref_buffer(vp->picref);
891 SDL_FreeYUVOverlay(vp->bmp);
895 SDL_DestroyMutex(is->pictq_mutex);
896 SDL_DestroyCond(is->pictq_cond);
897 SDL_DestroyMutex(is->subpq_mutex);
898 SDL_DestroyCond(is->subpq_cond);
900 if (is->img_convert_ctx)
901 sws_freeContext(is->img_convert_ctx);
906 static void do_exit(VideoState *is)
911 av_lockmgr_register(NULL);
916 avformat_network_deinit();
920 av_log(NULL, AV_LOG_QUIET, "%s", "");
924 static void sigterm_handler(int sig)
929 static int video_open(VideoState *is, int force_set_video_mode)
931 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
933 VideoPicture *vp = &is->pictq[is->pictq_rindex];
935 if (is_full_screen) flags |= SDL_FULLSCREEN;
936 else flags |= SDL_RESIZABLE;
938 if (is_full_screen && fs_screen_width) {
940 h = fs_screen_height;
941 } else if (!is_full_screen && screen_width) {
944 } else if (vp->width) {
951 if (screen && is->width == screen->w && screen->w == w
952 && is->height== screen->h && screen->h == h && !force_set_video_mode)
954 screen = SDL_SetVideoMode(w, h, 0, flags);
956 fprintf(stderr, "SDL: could not set video mode - exiting\n");
960 window_title = input_filename;
961 SDL_WM_SetCaption(window_title, window_title);
963 is->width = screen->w;
964 is->height = screen->h;
969 /* display the current picture, if any */
970 static void video_display(VideoState *is)
974 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
975 video_audio_display(is);
976 else if (is->video_st)
977 video_image_display(is);
980 static int refresh_thread(void *opaque)
982 VideoState *is= opaque;
983 while (!is->abort_request) {
985 event.type = FF_REFRESH_EVENT;
986 event.user.data1 = opaque;
987 if (!is->refresh && (!is->paused || is->force_refresh)) {
989 SDL_PushEvent(&event);
991 //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
992 usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
997 /* get the current audio clock value */
998 static double get_audio_clock(VideoState *is)
1001 return is->audio_current_pts;
1003 return is->audio_current_pts_drift + av_gettime() / 1000000.0;
1007 /* get the current video clock value */
1008 static double get_video_clock(VideoState *is)
1011 return is->video_current_pts;
1013 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1017 /* get the current external clock value */
1018 static double get_external_clock(VideoState *is)
1022 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1025 /* get the current master clock value */
1026 static double get_master_clock(VideoState *is)
1030 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1032 val = get_video_clock(is);
1034 val = get_audio_clock(is);
1035 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1037 val = get_audio_clock(is);
1039 val = get_video_clock(is);
1041 val = get_external_clock(is);
1046 /* seek in the stream */
1047 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1049 if (!is->seek_req) {
1052 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1054 is->seek_flags |= AVSEEK_FLAG_BYTE;
1059 /* pause or resume the video */
1060 static void stream_toggle_pause(VideoState *is)
1063 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1064 if (is->read_pause_return != AVERROR(ENOSYS)) {
1065 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1067 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1069 is->paused = !is->paused;
1072 static double compute_target_delay(double delay, VideoState *is)
1074 double sync_threshold, diff;
1076 /* update delay to follow master synchronisation source */
1077 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1078 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1079 /* if video is slave, we try to correct big delays by
1080 duplicating or deleting a frame */
1081 diff = get_video_clock(is) - get_master_clock(is);
1083 /* skip or repeat frame. We take into account the
1084 delay to compute the threshold. I still don't know
1085 if it is the best guess */
1086 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1087 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1088 if (diff <= -sync_threshold)
1090 else if (diff >= sync_threshold)
1095 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1101 static void pictq_next_picture(VideoState *is) {
1102 /* update queue size and signal for next picture */
1103 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1104 is->pictq_rindex = 0;
1106 SDL_LockMutex(is->pictq_mutex);
1108 SDL_CondSignal(is->pictq_cond);
1109 SDL_UnlockMutex(is->pictq_mutex);
1112 static void update_video_pts(VideoState *is, double pts, int64_t pos) {
1113 double time = av_gettime() / 1000000.0;
1114 /* update current video pts */
1115 is->video_current_pts = pts;
1116 is->video_current_pts_drift = is->video_current_pts - time;
1117 is->video_current_pos = pos;
1118 is->frame_last_pts = pts;
1121 /* called to display each frame */
1122 static void video_refresh(void *opaque)
1124 VideoState *is = opaque;
1128 SubPicture *sp, *sp2;
1132 if (is->pictq_size == 0) {
1133 SDL_LockMutex(is->pictq_mutex);
1134 if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
1135 update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos);
1136 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1138 SDL_UnlockMutex(is->pictq_mutex);
1139 // nothing to do, no picture to display in the que
1141 double last_duration, duration, delay;
1142 /* dequeue the picture */
1143 vp = &is->pictq[is->pictq_rindex];
1146 pictq_next_picture(is);
1153 /* compute nominal last_duration */
1154 last_duration = vp->pts - is->frame_last_pts;
1155 if (last_duration > 0 && last_duration < 10.0) {
1156 /* if duration of the last frame was sane, update last_duration in video state */
1157 is->frame_last_duration = last_duration;
1159 delay = compute_target_delay(is->frame_last_duration, is);
1161 time= av_gettime()/1000000.0;
1162 if (time < is->frame_timer + delay)
1166 is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
1168 SDL_LockMutex(is->pictq_mutex);
1169 update_video_pts(is, vp->pts, vp->pos);
1170 SDL_UnlockMutex(is->pictq_mutex);
1172 if (is->pictq_size > 1) {
1173 VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
1174 duration = nextvp->pts - vp->pts; // More accurate this way, 1/time_base is often not reflecting FPS
1176 duration = vp->duration;
1179 if((framedrop>0 || (framedrop && is->audio_st)) && time > is->frame_timer + duration){
1180 if(is->pictq_size > 1){
1181 is->frame_drops_late++;
1182 pictq_next_picture(is);
1187 if (is->subtitle_st) {
1188 if (is->subtitle_stream_changed) {
1189 SDL_LockMutex(is->subpq_mutex);
1191 while (is->subpq_size) {
1192 free_subpicture(&is->subpq[is->subpq_rindex]);
1194 /* update queue size and signal for next picture */
1195 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1196 is->subpq_rindex = 0;
1200 is->subtitle_stream_changed = 0;
1202 SDL_CondSignal(is->subpq_cond);
1203 SDL_UnlockMutex(is->subpq_mutex);
1205 if (is->subpq_size > 0) {
1206 sp = &is->subpq[is->subpq_rindex];
1208 if (is->subpq_size > 1)
1209 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1213 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1214 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1216 free_subpicture(sp);
1218 /* update queue size and signal for next picture */
1219 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1220 is->subpq_rindex = 0;
1222 SDL_LockMutex(is->subpq_mutex);
1224 SDL_CondSignal(is->subpq_cond);
1225 SDL_UnlockMutex(is->subpq_mutex);
1232 /* display picture */
1233 if (!display_disable)
1237 pictq_next_picture(is);
1239 } else if (is->audio_st) {
1240 /* draw the next audio frame */
1242 /* if only audio stream, then display the audio bars (better
1243 than nothing, just to test the implementation */
1245 /* display picture */
1246 if (!display_disable)
1249 is->force_refresh = 0;
1251 static int64_t last_time;
1253 int aqsize, vqsize, sqsize;
1256 cur_time = av_gettime();
1257 if (!last_time || (cur_time - last_time) >= 30000) {
1262 aqsize = is->audioq.size;
1264 vqsize = is->videoq.size;
1265 if (is->subtitle_st)
1266 sqsize = is->subtitleq.size;
1268 if (is->audio_st && is->video_st)
1269 av_diff = get_audio_clock(is) - get_video_clock(is);
1270 printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1271 get_master_clock(is),
1273 is->frame_drops_early + is->frame_drops_late,
1277 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1278 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1280 last_time = cur_time;
1285 /* allocate a picture (needs to do that in main thread to avoid
1286 potential locking problems */
1287 static void alloc_picture(AllocEventProps *event_props)
1289 VideoState *is = event_props->is;
1290 AVFrame *frame = event_props->frame;
1293 vp = &is->pictq[is->pictq_windex];
1296 SDL_FreeYUVOverlay(vp->bmp);
1300 avfilter_unref_buffer(vp->picref);
1304 vp->width = frame->width;
1305 vp->height = frame->height;
1306 vp->pix_fmt = frame->format;
1308 video_open(event_props->is, 0);
1310 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1313 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1314 /* SDL allocates a buffer smaller than requested if the video
1315 * overlay hardware is unable to support the requested size. */
1316 fprintf(stderr, "Error: the video system does not support an image\n"
1317 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1318 "to reduce the image size.\n", vp->width, vp->height );
1322 SDL_LockMutex(is->pictq_mutex);
1324 SDL_CondSignal(is->pictq_cond);
1325 SDL_UnlockMutex(is->pictq_mutex);
1328 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1331 double frame_delay, pts = pts1;
1333 /* compute the exact PTS for the picture if it is omitted in the stream
1334 * pts1 is the dts of the pkt / pts of the frame */
1336 /* update video clock with pts, if present */
1337 is->video_clock = pts;
1339 pts = is->video_clock;
1341 /* update video clock for next frame */
1342 frame_delay = av_q2d(is->video_st->codec->time_base);
1343 /* for MPEG2, the frame can be repeated, so we update the
1344 clock accordingly */
1345 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1346 is->video_clock += frame_delay;
1348 #if defined(DEBUG_SYNC) && 0
1349 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1350 av_get_picture_type_char(src_frame->pict_type), pts, pts1);
1353 /* wait until we have space to put a new picture */
1354 SDL_LockMutex(is->pictq_mutex);
1356 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1357 !is->videoq.abort_request) {
1358 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1360 SDL_UnlockMutex(is->pictq_mutex);
1362 if (is->videoq.abort_request)
1365 vp = &is->pictq[is->pictq_windex];
1367 vp->duration = frame_delay;
1369 /* alloc or resize hardware picture buffer */
1370 if (!vp->bmp || vp->reallocate ||
1371 vp->width != src_frame->width ||
1372 vp->height != src_frame->height) {
1374 AllocEventProps event_props;
1376 event_props.frame = src_frame;
1377 event_props.is = is;
1382 /* the allocation must be done in the main thread to avoid
1383 locking problems. We wait in this block for the event to complete,
1384 so we can pass a pointer to event_props to it. */
1385 event.type = FF_ALLOC_EVENT;
1386 event.user.data1 = &event_props;
1387 SDL_PushEvent(&event);
1389 /* wait until the picture is allocated */
1390 SDL_LockMutex(is->pictq_mutex);
1391 while (!vp->allocated && !is->videoq.abort_request) {
1392 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1394 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1395 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1396 while (!vp->allocated) {
1397 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1400 SDL_UnlockMutex(is->pictq_mutex);
1402 if (is->videoq.abort_request)
1406 /* if the frame is not skipped, then display it */
1408 AVPicture pict = { { 0 } };
1411 avfilter_unref_buffer(vp->picref);
1412 vp->picref = src_frame->opaque;
1415 /* get a pointer on the bitmap */
1416 SDL_LockYUVOverlay (vp->bmp);
1418 pict.data[0] = vp->bmp->pixels[0];
1419 pict.data[1] = vp->bmp->pixels[2];
1420 pict.data[2] = vp->bmp->pixels[1];
1422 pict.linesize[0] = vp->bmp->pitches[0];
1423 pict.linesize[1] = vp->bmp->pitches[2];
1424 pict.linesize[2] = vp->bmp->pitches[1];
1427 // FIXME use direct rendering
1428 av_picture_copy(&pict, (AVPicture *)src_frame,
1429 vp->pix_fmt, vp->width, vp->height);
1430 vp->sample_aspect_ratio = vp->picref->video->sample_aspect_ratio;
1432 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1433 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1434 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1435 PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1436 if (is->img_convert_ctx == NULL) {
1437 fprintf(stderr, "Cannot initialize the conversion context\n");
1440 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1441 0, vp->height, pict.data, pict.linesize);
1442 vp->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, src_frame);
1444 /* update the bitmap content */
1445 SDL_UnlockYUVOverlay(vp->bmp);
1451 /* now we can update the picture count */
1452 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1453 is->pictq_windex = 0;
1454 SDL_LockMutex(is->pictq_mutex);
1456 SDL_UnlockMutex(is->pictq_mutex);
1461 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1465 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1468 if (pkt->data == flush_pkt.data) {
1469 avcodec_flush_buffers(is->video_st->codec);
1471 SDL_LockMutex(is->pictq_mutex);
1472 // Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1473 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1474 is->pictq[i].skip = 1;
1476 while (is->pictq_size && !is->videoq.abort_request) {
1477 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1479 is->video_current_pos = -1;
1480 is->frame_last_pts = AV_NOPTS_VALUE;
1481 is->frame_last_duration = 0;
1482 is->frame_timer = (double)av_gettime() / 1000000.0;
1483 is->frame_last_dropped_pts = AV_NOPTS_VALUE;
1484 SDL_UnlockMutex(is->pictq_mutex);
1489 avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
1494 if (decoder_reorder_pts == -1) {
1495 *pts = av_frame_get_best_effort_timestamp(frame);
1496 } else if (decoder_reorder_pts) {
1497 *pts = frame->pkt_pts;
1499 *pts = frame->pkt_dts;
1502 if (*pts == AV_NOPTS_VALUE) {
1506 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) || is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK) &&
1507 (framedrop>0 || (framedrop && is->audio_st))) {
1508 SDL_LockMutex(is->pictq_mutex);
1509 if (is->frame_last_pts != AV_NOPTS_VALUE && *pts) {
1510 double clockdiff = get_video_clock(is) - get_master_clock(is);
1511 double dpts = av_q2d(is->video_st->time_base) * *pts;
1512 double ptsdiff = dpts - is->frame_last_pts;
1513 if (fabs(clockdiff) < AV_NOSYNC_THRESHOLD &&
1514 ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD &&
1515 clockdiff + ptsdiff - is->frame_last_filter_delay < 0) {
1516 is->frame_last_dropped_pos = pkt->pos;
1517 is->frame_last_dropped_pts = dpts;
1518 is->frame_drops_early++;
1522 SDL_UnlockMutex(is->pictq_mutex);
1526 is->frame_last_returned_time = av_gettime() / 1000000.0;
1540 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1542 AVFilterContext *ctx = codec->opaque;
1543 AVFilterBufferRef *ref;
1544 int perms = AV_PERM_WRITE;
1545 int i, w, h, stride[AV_NUM_DATA_POINTERS];
1549 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1551 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1552 perms |= AV_PERM_NEG_LINESIZES;
1554 if (pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1555 if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1556 if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1557 if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1559 if (pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1564 if(av_image_check_size(w, h, 0, codec) || codec->pix_fmt<0)
1567 avcodec_align_dimensions2(codec, &w, &h, stride);
1568 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1571 if (codec->pix_fmt != ctx->outputs[0]->format) {
1572 av_log(codec, AV_LOG_ERROR, "Pixel format mismatches %d %d\n", codec->pix_fmt, ctx->outputs[0]->format);
1575 if (!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1578 pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1 + 1;
1579 ref->video->w = codec->width;
1580 ref->video->h = codec->height;
1581 for (i = 0; i < 4; i ++) {
1582 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1583 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1586 ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1588 pic->data[i] = ref->data[i];
1589 pic->linesize[i] = ref->linesize[i];
1592 pic->type = FF_BUFFER_TYPE_USER;
1593 pic->reordered_opaque = codec->reordered_opaque;
1594 pic->width = codec->width;
1595 pic->height = codec->height;
1596 pic->format = codec->pix_fmt;
1597 pic->sample_aspect_ratio = codec->sample_aspect_ratio;
1598 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1599 else pic->pkt_pts = AV_NOPTS_VALUE;
1603 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1605 memset(pic->data, 0, sizeof(pic->data));
1606 avfilter_unref_buffer(pic->opaque);
1609 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1611 AVFilterBufferRef *ref = pic->opaque;
1613 if (pic->data[0] == NULL) {
1614 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1615 return codec->get_buffer(codec, pic);
1618 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1619 (codec->pix_fmt != ref->format)) {
1620 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1624 pic->reordered_opaque = codec->reordered_opaque;
1625 if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
1626 else pic->pkt_pts = AV_NOPTS_VALUE;
1630 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1632 FilterPriv *priv = ctx->priv;
1633 AVCodecContext *codec;
1634 if (!opaque) return -1;
1637 codec = priv->is->video_st->codec;
1638 codec->opaque = ctx;
1639 if (codec->codec->capabilities & CODEC_CAP_DR1) {
1640 av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
1642 codec->get_buffer = input_get_buffer;
1643 codec->release_buffer = input_release_buffer;
1644 codec->reget_buffer = input_reget_buffer;
1645 codec->thread_safe_callbacks = 1;
1648 priv->frame = avcodec_alloc_frame();
1653 static void input_uninit(AVFilterContext *ctx)
1655 FilterPriv *priv = ctx->priv;
1656 av_free(priv->frame);
1659 static int input_request_frame(AVFilterLink *link)
1661 FilterPriv *priv = link->src->priv;
1662 AVFilterBufferRef *picref;
1667 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1668 av_free_packet(&pkt);
1672 if (priv->use_dr1 && priv->frame->opaque) {
1673 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1675 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, priv->frame->width, priv->frame->height);
1676 av_image_copy(picref->data, picref->linesize,
1677 (const uint8_t **)(void **)priv->frame->data, priv->frame->linesize,
1678 picref->format, priv->frame->width, priv->frame->height);
1680 av_free_packet(&pkt);
1682 avfilter_copy_frame_props(picref, priv->frame);
1683 picref->video->sample_aspect_ratio = av_guess_sample_aspect_ratio(priv->is->ic, priv->is->video_st, priv->frame);
1686 avfilter_start_frame(link, picref);
1687 avfilter_draw_slice(link, 0, picref->video->h, 1);
1688 avfilter_end_frame(link);
1693 static int input_query_formats(AVFilterContext *ctx)
1695 FilterPriv *priv = ctx->priv;
1696 enum PixelFormat pix_fmts[] = {
1697 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1700 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
1704 static int input_config_props(AVFilterLink *link)
1706 FilterPriv *priv = link->src->priv;
1707 AVStream *s = priv->is->video_st;
1709 link->w = s->codec->width;
1710 link->h = s->codec->height;
1711 link->sample_aspect_ratio = s->sample_aspect_ratio.num ?
1712 s->sample_aspect_ratio : s->codec->sample_aspect_ratio;
1713 link->time_base = s->time_base;
1718 static AVFilter input_filter =
1720 .name = "ffplay_input",
1722 .priv_size = sizeof(FilterPriv),
1725 .uninit = input_uninit,
1727 .query_formats = input_query_formats,
1729 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1730 .outputs = (AVFilterPad[]) {{ .name = "default",
1731 .type = AVMEDIA_TYPE_VIDEO,
1732 .request_frame = input_request_frame,
1733 .config_props = input_config_props, },
1737 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1739 static const enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
1740 char sws_flags_str[128];
1742 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
1743 AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_format;;
1744 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1745 graph->scale_sws_opts = av_strdup(sws_flags_str);
1747 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1748 NULL, is, graph)) < 0)
1751 #if FF_API_OLD_VSINK_API
1752 ret = avfilter_graph_create_filter(&filt_out,
1753 avfilter_get_by_name("buffersink"),
1754 "out", NULL, pix_fmts, graph);
1756 buffersink_params->pixel_fmts = pix_fmts;
1757 ret = avfilter_graph_create_filter(&filt_out,
1758 avfilter_get_by_name("buffersink"),
1759 "out", NULL, buffersink_params, graph);
1761 av_freep(&buffersink_params);
1765 if ((ret = avfilter_graph_create_filter(&filt_format,
1766 avfilter_get_by_name("format"),
1767 "format", "yuv420p", NULL, graph)) < 0)
1769 if ((ret = avfilter_link(filt_format, 0, filt_out, 0)) < 0)
1774 AVFilterInOut *outputs = avfilter_inout_alloc();
1775 AVFilterInOut *inputs = avfilter_inout_alloc();
1777 outputs->name = av_strdup("in");
1778 outputs->filter_ctx = filt_src;
1779 outputs->pad_idx = 0;
1780 outputs->next = NULL;
1782 inputs->name = av_strdup("out");
1783 inputs->filter_ctx = filt_format;
1784 inputs->pad_idx = 0;
1785 inputs->next = NULL;
1787 if ((ret = avfilter_graph_parse(graph, vfilters, &inputs, &outputs, NULL)) < 0)
1790 if ((ret = avfilter_link(filt_src, 0, filt_format, 0)) < 0)
1794 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1797 is->out_video_filter = filt_out;
1802 #endif /* CONFIG_AVFILTER */
1804 static int video_thread(void *arg)
1806 VideoState *is = arg;
1807 AVFrame *frame = avcodec_alloc_frame();
1808 int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
1813 AVFilterGraph *graph = avfilter_graph_alloc();
1814 AVFilterContext *filt_out = NULL;
1815 int last_w = is->video_st->codec->width;
1816 int last_h = is->video_st->codec->height;
1818 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1820 filt_out = is->out_video_filter;
1824 #if !CONFIG_AVFILTER
1827 AVFilterBufferRef *picref;
1828 AVRational tb = filt_out->inputs[0]->time_base;
1830 while (is->paused && !is->videoq.abort_request)
1833 if ( last_w != is->video_st->codec->width
1834 || last_h != is->video_st->codec->height) {
1835 av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
1836 last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
1837 avfilter_graph_free(&graph);
1838 graph = avfilter_graph_alloc();
1839 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1841 filt_out = is->out_video_filter;
1842 last_w = is->video_st->codec->width;
1843 last_h = is->video_st->codec->height;
1845 ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
1847 avfilter_fill_frame_from_video_buffer_ref(frame, picref);
1848 pts_int = picref->pts;
1849 tb = filt_out->inputs[0]->time_base;
1851 frame->opaque = picref;
1856 if (ret >= 0 && av_cmp_q(tb, is->video_st->time_base)) {
1857 av_unused int64_t pts1 = pts_int;
1858 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1859 av_dlog(NULL, "video_thread(): "
1860 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1861 tb.num, tb.den, pts1,
1862 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1865 ret = get_video_frame(is, frame, &pts_int, &pkt);
1867 av_free_packet(&pkt);
1875 is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
1876 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
1877 is->frame_last_filter_delay = 0;
1884 pts = pts_int * av_q2d(is->video_st->time_base);
1886 ret = queue_picture(is, frame, pts, pos);
1892 stream_toggle_pause(is);
1896 av_freep(&vfilters);
1897 avfilter_graph_free(&graph);
1903 static int subtitle_thread(void *arg)
1905 VideoState *is = arg;
1907 AVPacket pkt1, *pkt = &pkt1;
1911 int r, g, b, y, u, v, a;
1914 while (is->paused && !is->subtitleq.abort_request) {
1917 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1920 if (pkt->data == flush_pkt.data) {
1921 avcodec_flush_buffers(is->subtitle_st->codec);
1924 SDL_LockMutex(is->subpq_mutex);
1925 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1926 !is->subtitleq.abort_request) {
1927 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1929 SDL_UnlockMutex(is->subpq_mutex);
1931 if (is->subtitleq.abort_request)
1934 sp = &is->subpq[is->subpq_windex];
1936 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1937 this packet, if any */
1939 if (pkt->pts != AV_NOPTS_VALUE)
1940 pts = av_q2d(is->subtitle_st->time_base) * pkt->pts;
1942 avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
1943 &got_subtitle, pkt);
1945 if (got_subtitle && sp->sub.format == 0) {
1948 for (i = 0; i < sp->sub.num_rects; i++)
1950 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1952 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1953 y = RGB_TO_Y_CCIR(r, g, b);
1954 u = RGB_TO_U_CCIR(r, g, b, 0);
1955 v = RGB_TO_V_CCIR(r, g, b, 0);
1956 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1960 /* now we can update the picture count */
1961 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1962 is->subpq_windex = 0;
1963 SDL_LockMutex(is->subpq_mutex);
1965 SDL_UnlockMutex(is->subpq_mutex);
1967 av_free_packet(pkt);
1972 /* copy samples for viewing in editor window */
1973 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1977 size = samples_size / sizeof(short);
1979 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1982 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1984 is->sample_array_index += len;
1985 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1986 is->sample_array_index = 0;
1991 /* return the wanted number of samples to get better sync if sync_type is video
1992 * or external master clock */
1993 static int synchronize_audio(VideoState *is, int nb_samples)
1995 int wanted_nb_samples = nb_samples;
1997 /* if not master, then we try to remove or add samples to correct the clock */
1998 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
1999 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2000 double diff, avg_diff;
2001 int min_nb_samples, max_nb_samples;
2003 diff = get_audio_clock(is) - get_master_clock(is);
2005 if (diff < AV_NOSYNC_THRESHOLD) {
2006 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2007 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2008 /* not enough measures to have a correct estimate */
2009 is->audio_diff_avg_count++;
2011 /* estimate the A-V difference */
2012 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2014 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2015 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src_freq);
2016 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2017 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2018 wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
2020 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2021 diff, avg_diff, wanted_nb_samples - nb_samples,
2022 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2025 /* too big difference : may be initial PTS errors, so
2027 is->audio_diff_avg_count = 0;
2028 is->audio_diff_cum = 0;
2032 return wanted_nb_samples;
2035 /* decode one audio frame and returns its uncompressed size */
2036 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2038 AVPacket *pkt_temp = &is->audio_pkt_temp;
2039 AVPacket *pkt = &is->audio_pkt;
2040 AVCodecContext *dec = is->audio_st->codec;
2041 int len1, len2, data_size, resampled_data_size;
2042 int64_t dec_channel_layout;
2046 int flush_complete = 0;
2047 int wanted_nb_samples;
2050 /* NOTE: the audio packet can contain several frames */
2051 while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
2053 if (!(is->frame = avcodec_alloc_frame()))
2054 return AVERROR(ENOMEM);
2056 avcodec_get_frame_defaults(is->frame);
2061 len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp);
2063 /* if error, we skip the frame */
2068 pkt_temp->data += len1;
2069 pkt_temp->size -= len1;
2072 /* stop sending empty packets if the decoder is finished */
2073 if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
2077 data_size = av_samples_get_buffer_size(NULL, dec->channels,
2078 is->frame->nb_samples,
2079 dec->sample_fmt, 1);
2081 dec_channel_layout = (dec->channel_layout && dec->channels == av_get_channel_layout_nb_channels(dec->channel_layout)) ? dec->channel_layout : av_get_default_channel_layout(dec->channels);
2082 wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples);
2084 if (dec->sample_fmt != is->audio_src_fmt ||
2085 dec_channel_layout != is->audio_src_channel_layout ||
2086 dec->sample_rate != is->audio_src_freq ||
2087 (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) {
2089 swr_free(&is->swr_ctx);
2090 is->swr_ctx = swr_alloc_set_opts(NULL,
2091 is->audio_tgt_channel_layout, is->audio_tgt_fmt, is->audio_tgt_freq,
2092 dec_channel_layout, dec->sample_fmt, dec->sample_rate,
2094 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
2095 fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
2097 av_get_sample_fmt_name(dec->sample_fmt),
2100 av_get_sample_fmt_name(is->audio_tgt_fmt),
2101 is->audio_tgt_channels);
2104 is->audio_src_channel_layout = dec_channel_layout;
2105 is->audio_src_channels = dec->channels;
2106 is->audio_src_freq = dec->sample_rate;
2107 is->audio_src_fmt = dec->sample_fmt;
2110 resampled_data_size = data_size;
2112 const uint8_t *in[] = { is->frame->data[0] };
2113 uint8_t *out[] = {is->audio_buf2};
2114 if (wanted_nb_samples != is->frame->nb_samples) {
2115 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt_freq / dec->sample_rate,
2116 wanted_nb_samples * is->audio_tgt_freq / dec->sample_rate) < 0) {
2117 fprintf(stderr, "swr_set_compensation() failed\n");
2121 len2 = swr_convert(is->swr_ctx, out, sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt),
2122 in, is->frame->nb_samples);
2124 fprintf(stderr, "audio_resample() failed\n");
2127 if (len2 == sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt)) {
2128 fprintf(stderr, "warning: audio buffer is probably too small\n");
2129 swr_init(is->swr_ctx);
2131 is->audio_buf = is->audio_buf2;
2132 resampled_data_size = len2 * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
2134 is->audio_buf = is->frame->data[0];
2137 /* if no pts, then compute it */
2138 pts = is->audio_clock;
2140 is->audio_clock += (double)data_size /
2141 (dec->channels * dec->sample_rate * av_get_bytes_per_sample(dec->sample_fmt));
2144 static double last_clock;
2145 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2146 is->audio_clock - last_clock,
2147 is->audio_clock, pts);
2148 last_clock = is->audio_clock;
2151 return resampled_data_size;
2154 /* free the current packet */
2156 av_free_packet(pkt);
2157 memset(pkt_temp, 0, sizeof(*pkt_temp));
2159 if (is->paused || is->audioq.abort_request) {
2163 /* read next packet */
2164 if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
2167 if (pkt->data == flush_pkt.data) {
2168 avcodec_flush_buffers(dec);
2174 /* if update the audio clock with the pts */
2175 if (pkt->pts != AV_NOPTS_VALUE) {
2176 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2181 /* prepare a new audio buffer */
2182 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2184 VideoState *is = opaque;
2185 int audio_size, len1;
2187 int frame_size = av_samples_get_buffer_size(NULL, is->audio_tgt_channels, 1, is->audio_tgt_fmt, 1);
2190 audio_callback_time = av_gettime();
2193 if (is->audio_buf_index >= is->audio_buf_size) {
2194 audio_size = audio_decode_frame(is, &pts);
2195 if (audio_size < 0) {
2196 /* if error, just output silence */
2197 is->audio_buf = is->silence_buf;
2198 is->audio_buf_size = sizeof(is->silence_buf) / frame_size * frame_size;
2200 if (is->show_mode != SHOW_MODE_VIDEO)
2201 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2202 is->audio_buf_size = audio_size;
2204 is->audio_buf_index = 0;
2206 len1 = is->audio_buf_size - is->audio_buf_index;
2209 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2212 is->audio_buf_index += len1;
2214 bytes_per_sec = is->audio_tgt_freq * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
2215 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2216 /* Let's assume the audio driver that is used by SDL has two periods. */
2217 is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
2218 is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
2221 /* open a given stream. Return 0 if OK */
2222 static int stream_component_open(VideoState *is, int stream_index)
2224 AVFormatContext *ic = is->ic;
2225 AVCodecContext *avctx;
2227 SDL_AudioSpec wanted_spec, spec;
2229 AVDictionaryEntry *t = NULL;
2230 int64_t wanted_channel_layout = 0;
2231 int wanted_nb_channels;
2234 if (stream_index < 0 || stream_index >= ic->nb_streams)
2236 avctx = ic->streams[stream_index]->codec;
2238 codec = avcodec_find_decoder(avctx->codec_id);
2239 opts = filter_codec_opts(codec_opts, codec, ic, ic->streams[stream_index]);
2241 switch(avctx->codec_type){
2242 case AVMEDIA_TYPE_AUDIO : if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
2243 case AVMEDIA_TYPE_SUBTITLE: if(subtitle_codec_name) codec= avcodec_find_decoder_by_name(subtitle_codec_name); break;
2244 case AVMEDIA_TYPE_VIDEO : if(video_codec_name ) codec= avcodec_find_decoder_by_name( video_codec_name); break;
2249 avctx->workaround_bugs = workaround_bugs;
2250 avctx->lowres = lowres;
2251 if(avctx->lowres > codec->max_lowres){
2252 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2254 avctx->lowres= codec->max_lowres;
2256 avctx->idct_algo = idct;
2257 avctx->skip_frame = skip_frame;
2258 avctx->skip_idct = skip_idct;
2259 avctx->skip_loop_filter = skip_loop_filter;
2260 avctx->error_concealment = error_concealment;
2262 if(avctx->lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2263 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2264 if(codec->capabilities & CODEC_CAP_DR1)
2265 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2267 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2268 memset(&is->audio_pkt_temp, 0, sizeof(is->audio_pkt_temp));
2269 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2271 wanted_channel_layout = av_get_default_channel_layout(SDL_atoi(env));
2272 if (!wanted_channel_layout) {
2273 wanted_channel_layout = (avctx->channel_layout && avctx->channels == av_get_channel_layout_nb_channels(avctx->channel_layout)) ? avctx->channel_layout : av_get_default_channel_layout(avctx->channels);
2274 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2275 wanted_nb_channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2276 /* SDL only supports 1, 2, 4 or 6 channels at the moment, so we have to make sure not to request anything else. */
2277 while (wanted_nb_channels > 0 && (wanted_nb_channels == 3 || wanted_nb_channels == 5 || wanted_nb_channels > 6)) {
2278 wanted_nb_channels--;
2279 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2282 wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2283 wanted_spec.freq = avctx->sample_rate;
2284 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2285 fprintf(stderr, "Invalid sample rate or channel count!\n");
2290 if (!av_dict_get(opts, "threads", NULL, 0))
2291 av_dict_set(&opts, "threads", "auto", 0);
2293 avcodec_open2(avctx, codec, &opts) < 0)
2295 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2296 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2297 return AVERROR_OPTION_NOT_FOUND;
2300 /* prepare audio output */
2301 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2302 wanted_spec.format = AUDIO_S16SYS;
2303 wanted_spec.silence = 0;
2304 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2305 wanted_spec.callback = sdl_audio_callback;
2306 wanted_spec.userdata = is;
2307 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2308 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2311 is->audio_hw_buf_size = spec.size;
2312 if (spec.format != AUDIO_S16SYS) {
2313 fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format);
2316 if (spec.channels != wanted_spec.channels) {
2317 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2318 if (!wanted_channel_layout) {
2319 fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels);
2323 is->audio_src_fmt = is->audio_tgt_fmt = AV_SAMPLE_FMT_S16;
2324 is->audio_src_freq = is->audio_tgt_freq = spec.freq;
2325 is->audio_src_channel_layout = is->audio_tgt_channel_layout = wanted_channel_layout;
2326 is->audio_src_channels = is->audio_tgt_channels = spec.channels;
2329 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2330 switch (avctx->codec_type) {
2331 case AVMEDIA_TYPE_AUDIO:
2332 is->audio_stream = stream_index;
2333 is->audio_st = ic->streams[stream_index];
2334 is->audio_buf_size = 0;
2335 is->audio_buf_index = 0;
2337 /* init averaging filter */
2338 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2339 is->audio_diff_avg_count = 0;
2340 /* since we do not have a precise anough audio fifo fullness,
2341 we correct audio sync only if larger than this threshold */
2342 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / wanted_spec.freq;
2344 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2345 packet_queue_init(&is->audioq);
2348 case AVMEDIA_TYPE_VIDEO:
2349 is->video_stream = stream_index;
2350 is->video_st = ic->streams[stream_index];
2352 packet_queue_init(&is->videoq);
2353 is->video_tid = SDL_CreateThread(video_thread, is);
2355 case AVMEDIA_TYPE_SUBTITLE:
2356 is->subtitle_stream = stream_index;
2357 is->subtitle_st = ic->streams[stream_index];
2358 packet_queue_init(&is->subtitleq);
2360 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2368 static void stream_component_close(VideoState *is, int stream_index)
2370 AVFormatContext *ic = is->ic;
2371 AVCodecContext *avctx;
2373 if (stream_index < 0 || stream_index >= ic->nb_streams)
2375 avctx = ic->streams[stream_index]->codec;
2377 switch (avctx->codec_type) {
2378 case AVMEDIA_TYPE_AUDIO:
2379 packet_queue_abort(&is->audioq);
2383 packet_queue_end(&is->audioq);
2384 av_free_packet(&is->audio_pkt);
2386 swr_free(&is->swr_ctx);
2387 av_freep(&is->audio_buf1);
2388 is->audio_buf = NULL;
2389 av_freep(&is->frame);
2392 av_rdft_end(is->rdft);
2393 av_freep(&is->rdft_data);
2398 case AVMEDIA_TYPE_VIDEO:
2399 packet_queue_abort(&is->videoq);
2401 /* note: we also signal this mutex to make sure we deblock the
2402 video thread in all cases */
2403 SDL_LockMutex(is->pictq_mutex);
2404 SDL_CondSignal(is->pictq_cond);
2405 SDL_UnlockMutex(is->pictq_mutex);
2407 SDL_WaitThread(is->video_tid, NULL);
2409 packet_queue_end(&is->videoq);
2411 case AVMEDIA_TYPE_SUBTITLE:
2412 packet_queue_abort(&is->subtitleq);
2414 /* note: we also signal this mutex to make sure we deblock the
2415 video thread in all cases */
2416 SDL_LockMutex(is->subpq_mutex);
2417 is->subtitle_stream_changed = 1;
2419 SDL_CondSignal(is->subpq_cond);
2420 SDL_UnlockMutex(is->subpq_mutex);
2422 SDL_WaitThread(is->subtitle_tid, NULL);
2424 packet_queue_end(&is->subtitleq);
2430 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2431 avcodec_close(avctx);
2432 switch (avctx->codec_type) {
2433 case AVMEDIA_TYPE_AUDIO:
2434 is->audio_st = NULL;
2435 is->audio_stream = -1;
2437 case AVMEDIA_TYPE_VIDEO:
2438 is->video_st = NULL;
2439 is->video_stream = -1;
2441 case AVMEDIA_TYPE_SUBTITLE:
2442 is->subtitle_st = NULL;
2443 is->subtitle_stream = -1;
2450 static int decode_interrupt_cb(void *ctx)
2452 VideoState *is = ctx;
2453 return is->abort_request;
2456 /* this thread gets the stream from the disk or the network */
2457 static int read_thread(void *arg)
2459 VideoState *is = arg;
2460 AVFormatContext *ic = NULL;
2462 int st_index[AVMEDIA_TYPE_NB];
2463 AVPacket pkt1, *pkt = &pkt1;
2465 int pkt_in_play_range = 0;
2466 AVDictionaryEntry *t;
2467 AVDictionary **opts;
2468 int orig_nb_streams;
2470 memset(st_index, -1, sizeof(st_index));
2471 is->video_stream = -1;
2472 is->audio_stream = -1;
2473 is->subtitle_stream = -1;
2475 ic = avformat_alloc_context();
2476 ic->interrupt_callback.callback = decode_interrupt_cb;
2477 ic->interrupt_callback.opaque = is;
2478 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2480 print_error(is->filename, err);
2484 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2485 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2486 ret = AVERROR_OPTION_NOT_FOUND;
2492 ic->flags |= AVFMT_FLAG_GENPTS;
2494 opts = setup_find_stream_info_opts(ic, codec_opts);
2495 orig_nb_streams = ic->nb_streams;
2497 err = avformat_find_stream_info(ic, opts);
2499 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2503 for (i = 0; i < orig_nb_streams; i++)
2504 av_dict_free(&opts[i]);
2508 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end
2510 if (seek_by_bytes < 0)
2511 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2513 /* if seeking requested, we execute it */
2514 if (start_time != AV_NOPTS_VALUE) {
2517 timestamp = start_time;
2518 /* add the stream start time */
2519 if (ic->start_time != AV_NOPTS_VALUE)
2520 timestamp += ic->start_time;
2521 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2523 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2524 is->filename, (double)timestamp / AV_TIME_BASE);
2528 for (i = 0; i < ic->nb_streams; i++)
2529 ic->streams[i]->discard = AVDISCARD_ALL;
2531 st_index[AVMEDIA_TYPE_VIDEO] =
2532 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2533 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2535 st_index[AVMEDIA_TYPE_AUDIO] =
2536 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2537 wanted_stream[AVMEDIA_TYPE_AUDIO],
2538 st_index[AVMEDIA_TYPE_VIDEO],
2541 st_index[AVMEDIA_TYPE_SUBTITLE] =
2542 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2543 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2544 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2545 st_index[AVMEDIA_TYPE_AUDIO] :
2546 st_index[AVMEDIA_TYPE_VIDEO]),
2549 av_dump_format(ic, 0, is->filename, 0);
2552 is->show_mode = show_mode;
2554 /* open the streams */
2555 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2556 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2560 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2561 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2563 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2564 if (is->show_mode == SHOW_MODE_NONE)
2565 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2567 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2568 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2571 if (is->video_stream < 0 && is->audio_stream < 0) {
2572 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2578 if (is->abort_request)
2580 if (is->paused != is->last_paused) {
2581 is->last_paused = is->paused;
2583 is->read_pause_return = av_read_pause(ic);
2587 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2589 (!strcmp(ic->iformat->name, "rtsp") ||
2590 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2591 /* wait 10 ms to avoid trying to get another packet */
2598 int64_t seek_target = is->seek_pos;
2599 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2600 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2601 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2602 // of the seek_pos/seek_rel variables
2604 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2606 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2608 if (is->audio_stream >= 0) {
2609 packet_queue_flush(&is->audioq);
2610 packet_queue_put(&is->audioq, &flush_pkt);
2612 if (is->subtitle_stream >= 0) {
2613 packet_queue_flush(&is->subtitleq);
2614 packet_queue_put(&is->subtitleq, &flush_pkt);
2616 if (is->video_stream >= 0) {
2617 packet_queue_flush(&is->videoq);
2618 packet_queue_put(&is->videoq, &flush_pkt);
2625 /* if the queue are full, no need to read more */
2626 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2627 || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0)
2628 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0)
2629 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0))) {
2635 if (is->video_stream >= 0) {
2636 av_init_packet(pkt);
2639 pkt->stream_index = is->video_stream;
2640 packet_queue_put(&is->videoq, pkt);
2642 if (is->audio_stream >= 0 &&
2643 is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
2644 av_init_packet(pkt);
2647 pkt->stream_index = is->audio_stream;
2648 packet_queue_put(&is->audioq, pkt);
2651 if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) {
2652 if (loop != 1 && (!loop || --loop)) {
2653 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2654 } else if (autoexit) {
2662 ret = av_read_frame(ic, pkt);
2664 if (ret == AVERROR_EOF || url_feof(ic->pb))
2666 if (ic->pb && ic->pb->error)
2668 SDL_Delay(100); /* wait for user event */
2671 /* check if packet is in play range specified by user, then queue, otherwise discard */
2672 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2673 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2674 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2675 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
2676 <= ((double)duration / 1000000);
2677 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2678 packet_queue_put(&is->audioq, pkt);
2679 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2680 packet_queue_put(&is->videoq, pkt);
2681 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2682 packet_queue_put(&is->subtitleq, pkt);
2684 av_free_packet(pkt);
2687 /* wait until the end */
2688 while (!is->abort_request) {
2694 /* close each stream */
2695 if (is->audio_stream >= 0)
2696 stream_component_close(is, is->audio_stream);
2697 if (is->video_stream >= 0)
2698 stream_component_close(is, is->video_stream);
2699 if (is->subtitle_stream >= 0)
2700 stream_component_close(is, is->subtitle_stream);
2702 avformat_close_input(&is->ic);
2708 event.type = FF_QUIT_EVENT;
2709 event.user.data1 = is;
2710 SDL_PushEvent(&event);
2715 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2719 is = av_mallocz(sizeof(VideoState));
2722 av_strlcpy(is->filename, filename, sizeof(is->filename));
2723 is->iformat = iformat;
2727 /* start video display */
2728 is->pictq_mutex = SDL_CreateMutex();
2729 is->pictq_cond = SDL_CreateCond();
2731 is->subpq_mutex = SDL_CreateMutex();
2732 is->subpq_cond = SDL_CreateCond();
2734 is->av_sync_type = av_sync_type;
2735 is->read_tid = SDL_CreateThread(read_thread, is);
2736 if (!is->read_tid) {
2743 static void stream_cycle_channel(VideoState *is, int codec_type)
2745 AVFormatContext *ic = is->ic;
2746 int start_index, stream_index;
2749 if (codec_type == AVMEDIA_TYPE_VIDEO)
2750 start_index = is->video_stream;
2751 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2752 start_index = is->audio_stream;
2754 start_index = is->subtitle_stream;
2755 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2757 stream_index = start_index;
2759 if (++stream_index >= is->ic->nb_streams)
2761 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2768 if (stream_index == start_index)
2770 st = ic->streams[stream_index];
2771 if (st->codec->codec_type == codec_type) {
2772 /* check that parameters are OK */
2773 switch (codec_type) {
2774 case AVMEDIA_TYPE_AUDIO:
2775 if (st->codec->sample_rate != 0 &&
2776 st->codec->channels != 0)
2779 case AVMEDIA_TYPE_VIDEO:
2780 case AVMEDIA_TYPE_SUBTITLE:
2788 stream_component_close(is, start_index);
2789 stream_component_open(is, stream_index);
2793 static void toggle_full_screen(VideoState *is)
2796 is_full_screen = !is_full_screen;
2797 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
2798 /* OS X needs to reallocate the SDL overlays */
2799 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
2800 is->pictq[i].reallocate = 1;
2806 static void toggle_pause(VideoState *is)
2808 stream_toggle_pause(is);
2812 static void step_to_next_frame(VideoState *is)
2814 /* if the stream is paused unpause it, then step */
2816 stream_toggle_pause(is);
2820 static void toggle_audio_display(VideoState *is)
2822 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2823 is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
2824 fill_rectangle(screen,
2825 is->xleft, is->ytop, is->width, is->height,
2827 SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
2830 /* handle an event sent by the GUI */
2831 static void event_loop(VideoState *cur_stream)
2834 double incr, pos, frac;
2838 SDL_WaitEvent(&event);
2839 switch (event.type) {
2841 if (exit_on_keydown) {
2842 do_exit(cur_stream);
2845 switch (event.key.keysym.sym) {
2848 do_exit(cur_stream);
2851 toggle_full_screen(cur_stream);
2852 cur_stream->force_refresh = 1;
2856 toggle_pause(cur_stream);
2858 case SDLK_s: // S: Step to next frame
2859 step_to_next_frame(cur_stream);
2862 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2865 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2868 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2871 toggle_audio_display(cur_stream);
2872 cur_stream->force_refresh = 1;
2892 if (seek_by_bytes) {
2893 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) {
2894 pos = cur_stream->video_current_pos;
2895 } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) {
2896 pos = cur_stream->audio_pkt.pos;
2898 pos = avio_tell(cur_stream->ic->pb);
2899 if (cur_stream->ic->bit_rate)
2900 incr *= cur_stream->ic->bit_rate / 8.0;
2904 stream_seek(cur_stream, pos, incr, 1);
2906 pos = get_master_clock(cur_stream);
2908 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2915 case SDL_VIDEOEXPOSE:
2916 cur_stream->force_refresh = 1;
2918 case SDL_MOUSEBUTTONDOWN:
2919 if (exit_on_mousedown) {
2920 do_exit(cur_stream);
2923 case SDL_MOUSEMOTION:
2924 if (event.type == SDL_MOUSEBUTTONDOWN) {
2927 if (event.motion.state != SDL_PRESSED)
2931 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
2932 uint64_t size = avio_size(cur_stream->ic->pb);
2933 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2937 int tns, thh, tmm, tss;
2938 tns = cur_stream->ic->duration / 1000000LL;
2940 tmm = (tns % 3600) / 60;
2942 frac = x / cur_stream->width;
2945 mm = (ns % 3600) / 60;
2947 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2948 hh, mm, ss, thh, tmm, tss);
2949 ts = frac * cur_stream->ic->duration;
2950 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2951 ts += cur_stream->ic->start_time;
2952 stream_seek(cur_stream, ts, 0, 0);
2955 case SDL_VIDEORESIZE:
2956 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2957 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2958 screen_width = cur_stream->width = event.resize.w;
2959 screen_height = cur_stream->height = event.resize.h;
2960 cur_stream->force_refresh = 1;
2964 do_exit(cur_stream);
2966 case FF_ALLOC_EVENT:
2967 alloc_picture(event.user.data1);
2969 case FF_REFRESH_EVENT:
2970 video_refresh(event.user.data1);
2971 cur_stream->refresh = 0;
2979 static int opt_frame_size(const char *opt, const char *arg)
2981 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
2982 return opt_default("video_size", arg);
2985 static int opt_width(const char *opt, const char *arg)
2987 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2991 static int opt_height(const char *opt, const char *arg)
2993 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2997 static int opt_format(const char *opt, const char *arg)
2999 file_iformat = av_find_input_format(arg);
3000 if (!file_iformat) {
3001 fprintf(stderr, "Unknown input format: %s\n", arg);
3002 return AVERROR(EINVAL);
3007 static int opt_frame_pix_fmt(const char *opt, const char *arg)
3009 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
3010 return opt_default("pixel_format", arg);
3013 static int opt_sync(const char *opt, const char *arg)
3015 if (!strcmp(arg, "audio"))
3016 av_sync_type = AV_SYNC_AUDIO_MASTER;
3017 else if (!strcmp(arg, "video"))
3018 av_sync_type = AV_SYNC_VIDEO_MASTER;
3019 else if (!strcmp(arg, "ext"))
3020 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
3022 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
3028 static int opt_seek(const char *opt, const char *arg)
3030 start_time = parse_time_or_die(opt, arg, 1);
3034 static int opt_duration(const char *opt, const char *arg)
3036 duration = parse_time_or_die(opt, arg, 1);
3040 static int opt_show_mode(const char *opt, const char *arg)
3042 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
3043 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
3044 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
3045 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3049 static void opt_input_file(void *optctx, const char *filename)
3051 if (input_filename) {
3052 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3053 filename, input_filename);
3056 if (!strcmp(filename, "-"))
3058 input_filename = filename;
3061 static int opt_codec(void *o, const char *opt, const char *arg)
3063 switch(opt[strlen(opt)-1]){
3064 case 'a' : audio_codec_name = arg; break;
3065 case 's' : subtitle_codec_name = arg; break;
3066 case 'v' : video_codec_name = arg; break;
3073 static const OptionDef options[] = {
3074 #include "cmdutils_common_opts.h"
3075 { "x", HAS_ARG, { (void*)opt_width }, "force displayed width", "width" },
3076 { "y", HAS_ARG, { (void*)opt_height }, "force displayed height", "height" },
3077 { "s", HAS_ARG | OPT_VIDEO, { (void*)opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3078 { "fs", OPT_BOOL, { (void*)&is_full_screen }, "force full screen" },
3079 { "an", OPT_BOOL, { (void*)&audio_disable }, "disable audio" },
3080 { "vn", OPT_BOOL, { (void*)&video_disable }, "disable video" },
3081 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3082 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3083 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3084 { "ss", HAS_ARG, { (void*)&opt_seek }, "seek to a given position in seconds", "pos" },
3085 { "t", HAS_ARG, { (void*)&opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3086 { "bytes", OPT_INT | HAS_ARG, { (void*)&seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3087 { "nodisp", OPT_BOOL, { (void*)&display_disable }, "disable graphical display" },
3088 { "f", HAS_ARG, { (void*)opt_format }, "force format", "fmt" },
3089 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { (void*)opt_frame_pix_fmt }, "set pixel format", "format" },
3090 { "stats", OPT_BOOL | OPT_EXPERT, { (void*)&show_status }, "show status", "" },
3091 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&workaround_bugs }, "workaround bugs", "" },
3092 { "fast", OPT_BOOL | OPT_EXPERT, { (void*)&fast }, "non spec compliant optimizations", "" },
3093 { "genpts", OPT_BOOL | OPT_EXPERT, { (void*)&genpts }, "generate pts", "" },
3094 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3095 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&lowres }, "", "" },
3096 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_loop_filter }, "", "" },
3097 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_frame }, "", "" },
3098 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&skip_idct }, "", "" },
3099 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&idct }, "set idct algo", "algo" },
3100 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&error_concealment }, "set error concealment options", "bit_mask" },
3101 { "sync", HAS_ARG | OPT_EXPERT, { (void*)opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3102 { "autoexit", OPT_BOOL | OPT_EXPERT, { (void*)&autoexit }, "exit at the end", "" },
3103 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_keydown }, "exit on key down", "" },
3104 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { (void*)&exit_on_mousedown }, "exit on mouse down", "" },
3105 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { (void*)&loop }, "set number of times the playback shall be looped", "loop count" },
3106 { "framedrop", OPT_BOOL | OPT_EXPERT, { (void*)&framedrop }, "drop frames when cpu is too slow", "" },
3107 { "window_title", OPT_STRING | HAS_ARG, { (void*)&window_title }, "set window title", "window title" },
3109 { "vf", OPT_STRING | HAS_ARG, { (void*)&vfilters }, "video filters", "filter list" },
3111 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { (void*)&rdftspeed }, "rdft speed", "msecs" },
3112 { "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3113 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { (void*)opt_default }, "generic catch all option", "" },
3114 { "i", OPT_BOOL, {(void *)&dummy}, "read specified file", "input_file"},
3115 { "codec", HAS_ARG | OPT_FUNC2, {(void*)opt_codec}, "force decoder", "decoder" },
3119 static void show_usage(void)
3121 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3122 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3123 av_log(NULL, AV_LOG_INFO, "\n");
3126 static int opt_help(const char *opt, const char *arg)
3128 av_log_set_callback(log_callback_help);
3130 show_help_options(options, "Main options:\n",
3132 show_help_options(options, "\nAdvanced options:\n",
3133 OPT_EXPERT, OPT_EXPERT);
3135 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3136 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3137 #if !CONFIG_AVFILTER
3138 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3140 printf("\nWhile playing:\n"
3142 "f toggle full screen\n"
3144 "a cycle audio channel\n"
3145 "v cycle video channel\n"
3146 "t cycle subtitle channel\n"
3147 "w show audio waves\n"
3148 "s activate frame-step mode\n"
3149 "left/right seek backward/forward 10 seconds\n"
3150 "down/up seek backward/forward 1 minute\n"
3151 "page down/page up seek backward/forward 10 minutes\n"
3152 "mouse click seek to percentage in file corresponding to fraction of width\n"
3157 static int lockmgr(void **mtx, enum AVLockOp op)
3160 case AV_LOCK_CREATE:
3161 *mtx = SDL_CreateMutex();
3165 case AV_LOCK_OBTAIN:
3166 return !!SDL_LockMutex(*mtx);
3167 case AV_LOCK_RELEASE:
3168 return !!SDL_UnlockMutex(*mtx);
3169 case AV_LOCK_DESTROY:
3170 SDL_DestroyMutex(*mtx);
3176 /* Called from the main */
3177 int main(int argc, char **argv)
3182 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3183 parse_loglevel(argc, argv, options);
3185 /* register all codecs, demux and protocols */
3186 avcodec_register_all();
3188 avdevice_register_all();
3191 avfilter_register_all();
3194 avformat_network_init();
3198 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
3199 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
3201 show_banner(argc, argv, options);
3203 parse_options(NULL, argc, argv, options, opt_input_file);
3205 if (!input_filename) {
3207 fprintf(stderr, "An input file must be specified\n");
3208 fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3212 if (display_disable) {
3215 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3217 flags &= ~SDL_INIT_AUDIO;
3218 #if !defined(__MINGW32__) && !defined(__APPLE__)
3219 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3221 if (SDL_Init (flags)) {
3222 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3223 fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
3227 if (!display_disable) {
3228 #if HAVE_SDL_VIDEO_SIZE
3229 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3230 fs_screen_width = vi->current_w;
3231 fs_screen_height = vi->current_h;
3235 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3236 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3237 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3239 if (av_lockmgr_register(lockmgr)) {
3240 fprintf(stderr, "Could not initialize lock manager!\n");
3244 av_init_packet(&flush_pkt);
3245 flush_pkt.data = (char *)(intptr_t)"FLUSH";
3247 is = stream_open(input_filename, file_iformat);
3249 fprintf(stderr, "Failed to initialize VideoState!\n");