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
33 #include "libavutil/avstring.h"
34 #include "libavutil/colorspace.h"
35 #include "libavutil/mathematics.h"
36 #include "libavutil/pixdesc.h"
37 #include "libavutil/imgutils.h"
38 #include "libavutil/dict.h"
39 #include "libavutil/parseutils.h"
40 #include "libavutil/samplefmt.h"
41 #include "libavutil/avassert.h"
42 #include "libavutil/time.h"
43 #include "libavformat/avformat.h"
44 #include "libavdevice/avdevice.h"
45 #include "libswscale/swscale.h"
46 #include "libavutil/opt.h"
47 #include "libavcodec/avfft.h"
48 #include "libswresample/swresample.h"
51 # include "libavfilter/avcodec.h"
52 # include "libavfilter/avfilter.h"
53 # include "libavfilter/buffersink.h"
54 # include "libavfilter/buffersrc.h"
58 #include <SDL_thread.h>
64 const char program_name[] = "ffplay";
65 const int program_birth_year = 2003;
67 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
70 /* Minimum SDL audio buffer size, in samples. */
71 #define SDL_AUDIO_MIN_BUFFER_SIZE 512
72 /* Calculate actual buffer size keeping in mind not cause too frequent audio callbacks */
73 #define SDL_AUDIO_MAX_CALLBACKS_PER_SEC 30
75 /* no AV sync correction is done if below the minimum AV sync threshold */
76 #define AV_SYNC_THRESHOLD_MIN 0.04
77 /* AV sync correction is done if above the maximum AV sync threshold */
78 #define AV_SYNC_THRESHOLD_MAX 0.1
79 /* If a frame duration is longer than this, it will not be duplicated to compensate AV sync */
80 #define AV_SYNC_FRAMEDUP_THRESHOLD 0.1
81 /* no AV correction is done if too big error */
82 #define AV_NOSYNC_THRESHOLD 10.0
84 /* maximum audio speed change to get correct sync */
85 #define SAMPLE_CORRECTION_PERCENT_MAX 10
87 /* external clock speed adjustment constants for realtime sources based on buffer fullness */
88 #define EXTERNAL_CLOCK_SPEED_MIN 0.900
89 #define EXTERNAL_CLOCK_SPEED_MAX 1.010
90 #define EXTERNAL_CLOCK_SPEED_STEP 0.001
92 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
93 #define AUDIO_DIFF_AVG_NB 20
95 /* polls for possible required screen refresh at least this often, should be less than 1/fps */
96 #define REFRESH_RATE 0.01
98 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
99 /* TODO: We assume that a decoded and resampled frame fits into this buffer */
100 #define SAMPLE_ARRAY_SIZE (8 * 65536)
102 #define CURSOR_HIDE_DELAY 1000000
104 static int64_t sws_flags = SWS_BICUBIC;
106 typedef struct MyAVPacketList {
108 struct MyAVPacketList *next;
112 typedef struct PacketQueue {
113 MyAVPacketList *first_pkt, *last_pkt;
122 #define VIDEO_PICTURE_QUEUE_SIZE 3
123 #define SUBPICTURE_QUEUE_SIZE 16
124 #define SAMPLE_QUEUE_SIZE 9
125 #define FRAME_QUEUE_SIZE FFMAX(SAMPLE_QUEUE_SIZE, FFMAX(VIDEO_PICTURE_QUEUE_SIZE, SUBPICTURE_QUEUE_SIZE))
127 typedef struct AudioParams {
130 int64_t channel_layout;
131 enum AVSampleFormat fmt;
136 typedef struct Clock {
137 double pts; /* clock base */
138 double pts_drift; /* clock base minus time at which we updated the clock */
141 int serial; /* clock is based on a packet with this serial */
143 int *queue_serial; /* pointer to the current packet queue serial, used for obsolete clock detection */
146 /* Common struct for handling all types of decoded data and allocated render buffers. */
147 typedef struct Frame {
151 double pts; /* presentation timestamp for the frame */
152 double duration; /* estimated duration of the frame */
153 int64_t pos; /* byte position of the frame in the input file */
162 typedef struct FrameQueue {
163 Frame queue[FRAME_QUEUE_SIZE];
176 AV_SYNC_AUDIO_MASTER, /* default choice */
177 AV_SYNC_VIDEO_MASTER,
178 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
181 typedef struct Decoder {
185 AVCodecContext *avctx;
190 SDL_cond *empty_queue_cond;
192 AVRational start_pts_tb;
194 AVRational next_pts_tb;
197 typedef struct VideoState {
198 SDL_Thread *read_tid;
199 SDL_Thread *video_tid;
200 SDL_Thread *audio_tid;
201 AVInputFormat *iformat;
207 int queue_attachments_req;
212 int read_pause_return;
233 int audio_clock_serial;
234 double audio_diff_cum; /* used for AV difference average computation */
235 double audio_diff_avg_coef;
236 double audio_diff_threshold;
237 int audio_diff_avg_count;
240 int audio_hw_buf_size;
241 uint8_t silence_buf[SDL_AUDIO_MIN_BUFFER_SIZE];
244 unsigned int audio_buf_size; /* in bytes */
245 unsigned int audio_buf1_size;
246 int audio_buf_index; /* in bytes */
247 int audio_write_buf_size;
248 struct AudioParams audio_src;
250 struct AudioParams audio_filter_src;
252 struct AudioParams audio_tgt;
253 struct SwrContext *swr_ctx;
254 int frame_drops_early;
255 int frame_drops_late;
258 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
260 int16_t sample_array[SAMPLE_ARRAY_SIZE];
261 int sample_array_index;
265 FFTSample *rdft_data;
267 double last_vis_time;
269 SDL_Thread *subtitle_tid;
271 AVStream *subtitle_st;
272 PacketQueue subtitleq;
275 double frame_last_returned_time;
276 double frame_last_filter_delay;
280 double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity
282 struct SwsContext *img_convert_ctx;
284 SDL_Rect last_display_rect;
287 int width, height, xleft, ytop;
292 AVFilterContext *in_video_filter; // the first filter in the video chain
293 AVFilterContext *out_video_filter; // the last filter in the video chain
294 AVFilterContext *in_audio_filter; // the first filter in the audio chain
295 AVFilterContext *out_audio_filter; // the last filter in the audio chain
296 AVFilterGraph *agraph; // audio filter graph
299 int last_video_stream, last_audio_stream, last_subtitle_stream;
301 SDL_cond *continue_read_thread;
304 /* options specified by the user */
305 static AVInputFormat *file_iformat;
306 static const char *input_filename;
307 static const char *window_title;
308 static int fs_screen_width;
309 static int fs_screen_height;
310 static int default_width = 640;
311 static int default_height = 480;
312 static int screen_width = 0;
313 static int screen_height = 0;
314 static int audio_disable;
315 static int video_disable;
316 static int subtitle_disable;
317 static int wanted_stream[AVMEDIA_TYPE_NB] = {
318 [AVMEDIA_TYPE_AUDIO] = -1,
319 [AVMEDIA_TYPE_VIDEO] = -1,
320 [AVMEDIA_TYPE_SUBTITLE] = -1,
322 static int seek_by_bytes = -1;
323 static int display_disable;
324 static int show_status = 1;
325 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
326 static int64_t start_time = AV_NOPTS_VALUE;
327 static int64_t duration = AV_NOPTS_VALUE;
329 static int genpts = 0;
330 static int lowres = 0;
331 static int decoder_reorder_pts = -1;
333 static int exit_on_keydown;
334 static int exit_on_mousedown;
336 static int framedrop = -1;
337 static int infinite_buffer = -1;
338 static enum ShowMode show_mode = SHOW_MODE_NONE;
339 static const char *audio_codec_name;
340 static const char *subtitle_codec_name;
341 static const char *video_codec_name;
342 double rdftspeed = 0.02;
343 static int64_t cursor_last_shown;
344 static int cursor_hidden = 0;
346 static const char **vfilters_list = NULL;
347 static int nb_vfilters = 0;
348 static char *afilters = NULL;
350 static int autorotate = 1;
352 /* current context */
353 static int is_full_screen;
354 static int64_t audio_callback_time;
356 static AVPacket flush_pkt;
358 #define FF_ALLOC_EVENT (SDL_USEREVENT)
359 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
361 static SDL_Surface *screen;
364 static int opt_add_vfilter(void *optctx, const char *opt, const char *arg)
366 GROW_ARRAY(vfilters_list, nb_vfilters);
367 vfilters_list[nb_vfilters - 1] = arg;
373 int cmp_audio_fmts(enum AVSampleFormat fmt1, int64_t channel_count1,
374 enum AVSampleFormat fmt2, int64_t channel_count2)
376 /* If channel count == 1, planar and non-planar formats are the same */
377 if (channel_count1 == 1 && channel_count2 == 1)
378 return av_get_packed_sample_fmt(fmt1) != av_get_packed_sample_fmt(fmt2);
380 return channel_count1 != channel_count2 || fmt1 != fmt2;
384 int64_t get_valid_channel_layout(int64_t channel_layout, int channels)
386 if (channel_layout && av_get_channel_layout_nb_channels(channel_layout) == channels)
387 return channel_layout;
392 static void free_picture(Frame *vp);
394 static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
396 MyAVPacketList *pkt1;
398 if (q->abort_request)
401 pkt1 = av_malloc(sizeof(MyAVPacketList));
406 if (pkt == &flush_pkt)
408 pkt1->serial = q->serial;
413 q->last_pkt->next = pkt1;
416 q->size += pkt1->pkt.size + sizeof(*pkt1);
417 /* XXX: should duplicate packet data in DV case */
418 SDL_CondSignal(q->cond);
422 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
426 /* duplicate the packet */
427 if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
430 SDL_LockMutex(q->mutex);
431 ret = packet_queue_put_private(q, pkt);
432 SDL_UnlockMutex(q->mutex);
434 if (pkt != &flush_pkt && ret < 0)
440 static int packet_queue_put_nullpacket(PacketQueue *q, int stream_index)
442 AVPacket pkt1, *pkt = &pkt1;
446 pkt->stream_index = stream_index;
447 return packet_queue_put(q, pkt);
450 /* packet queue handling */
451 static void packet_queue_init(PacketQueue *q)
453 memset(q, 0, sizeof(PacketQueue));
454 q->mutex = SDL_CreateMutex();
455 q->cond = SDL_CreateCond();
456 q->abort_request = 1;
459 static void packet_queue_flush(PacketQueue *q)
461 MyAVPacketList *pkt, *pkt1;
463 SDL_LockMutex(q->mutex);
464 for (pkt = q->first_pkt; pkt; pkt = pkt1) {
466 av_free_packet(&pkt->pkt);
473 SDL_UnlockMutex(q->mutex);
476 static void packet_queue_destroy(PacketQueue *q)
478 packet_queue_flush(q);
479 SDL_DestroyMutex(q->mutex);
480 SDL_DestroyCond(q->cond);
483 static void packet_queue_abort(PacketQueue *q)
485 SDL_LockMutex(q->mutex);
487 q->abort_request = 1;
489 SDL_CondSignal(q->cond);
491 SDL_UnlockMutex(q->mutex);
494 static void packet_queue_start(PacketQueue *q)
496 SDL_LockMutex(q->mutex);
497 q->abort_request = 0;
498 packet_queue_put_private(q, &flush_pkt);
499 SDL_UnlockMutex(q->mutex);
502 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
503 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial)
505 MyAVPacketList *pkt1;
508 SDL_LockMutex(q->mutex);
511 if (q->abort_request) {
518 q->first_pkt = pkt1->next;
522 q->size -= pkt1->pkt.size + sizeof(*pkt1);
525 *serial = pkt1->serial;
533 SDL_CondWait(q->cond, q->mutex);
536 SDL_UnlockMutex(q->mutex);
540 static void decoder_init(Decoder *d, AVCodecContext *avctx, PacketQueue *queue, SDL_cond *empty_queue_cond) {
541 memset(d, 0, sizeof(Decoder));
544 d->empty_queue_cond = empty_queue_cond;
545 d->start_pts = AV_NOPTS_VALUE;
548 static int decoder_decode_frame(Decoder *d, AVFrame *frame, AVSubtitle *sub) {
556 if (d->queue->abort_request)
559 if (!d->packet_pending || d->queue->serial != d->pkt_serial) {
562 if (d->queue->nb_packets == 0)
563 SDL_CondSignal(d->empty_queue_cond);
564 if (packet_queue_get(d->queue, &pkt, 1, &d->pkt_serial) < 0)
566 if (pkt.data == flush_pkt.data) {
567 avcodec_flush_buffers(d->avctx);
570 d->next_pts = d->start_pts;
571 d->next_pts_tb = d->start_pts_tb;
573 } while (pkt.data == flush_pkt.data || d->queue->serial != d->pkt_serial);
574 av_free_packet(&d->pkt);
575 d->pkt_temp = d->pkt = pkt;
576 d->packet_pending = 1;
579 switch (d->avctx->codec_type) {
580 case AVMEDIA_TYPE_VIDEO:
581 ret = avcodec_decode_video2(d->avctx, frame, &got_frame, &d->pkt_temp);
583 if (decoder_reorder_pts == -1) {
584 frame->pts = av_frame_get_best_effort_timestamp(frame);
585 } else if (decoder_reorder_pts) {
586 frame->pts = frame->pkt_pts;
588 frame->pts = frame->pkt_dts;
592 case AVMEDIA_TYPE_AUDIO:
593 ret = avcodec_decode_audio4(d->avctx, frame, &got_frame, &d->pkt_temp);
595 AVRational tb = (AVRational){1, frame->sample_rate};
596 if (frame->pts != AV_NOPTS_VALUE)
597 frame->pts = av_rescale_q(frame->pts, d->avctx->time_base, tb);
598 else if (frame->pkt_pts != AV_NOPTS_VALUE)
599 frame->pts = av_rescale_q(frame->pkt_pts, av_codec_get_pkt_timebase(d->avctx), tb);
600 else if (d->next_pts != AV_NOPTS_VALUE)
601 frame->pts = av_rescale_q(d->next_pts, d->next_pts_tb, tb);
602 if (frame->pts != AV_NOPTS_VALUE) {
603 d->next_pts = frame->pts + frame->nb_samples;
608 case AVMEDIA_TYPE_SUBTITLE:
609 ret = avcodec_decode_subtitle2(d->avctx, sub, &got_frame, &d->pkt_temp);
614 d->packet_pending = 0;
617 d->pkt_temp.pts = AV_NOPTS_VALUE;
618 if (d->pkt_temp.data) {
619 if (d->avctx->codec_type != AVMEDIA_TYPE_AUDIO)
620 ret = d->pkt_temp.size;
621 d->pkt_temp.data += ret;
622 d->pkt_temp.size -= ret;
623 if (d->pkt_temp.size <= 0)
624 d->packet_pending = 0;
627 d->packet_pending = 0;
628 d->finished = d->pkt_serial;
632 } while (!got_frame && !d->finished);
637 static void decoder_destroy(Decoder *d) {
638 av_free_packet(&d->pkt);
641 static void frame_queue_unref_item(Frame *vp)
643 av_frame_unref(vp->frame);
644 avsubtitle_free(&vp->sub);
647 static int frame_queue_init(FrameQueue *f, PacketQueue *pktq, int max_size, int keep_last)
650 memset(f, 0, sizeof(FrameQueue));
651 if (!(f->mutex = SDL_CreateMutex()))
652 return AVERROR(ENOMEM);
653 if (!(f->cond = SDL_CreateCond()))
654 return AVERROR(ENOMEM);
656 f->max_size = FFMIN(max_size, FRAME_QUEUE_SIZE);
657 f->keep_last = !!keep_last;
658 for (i = 0; i < f->max_size; i++)
659 if (!(f->queue[i].frame = av_frame_alloc()))
660 return AVERROR(ENOMEM);
664 static void frame_queue_destory(FrameQueue *f)
667 for (i = 0; i < f->max_size; i++) {
668 Frame *vp = &f->queue[i];
669 frame_queue_unref_item(vp);
670 av_frame_free(&vp->frame);
673 SDL_DestroyMutex(f->mutex);
674 SDL_DestroyCond(f->cond);
677 static void frame_queue_signal(FrameQueue *f)
679 SDL_LockMutex(f->mutex);
680 SDL_CondSignal(f->cond);
681 SDL_UnlockMutex(f->mutex);
684 static Frame *frame_queue_peek(FrameQueue *f)
686 return &f->queue[(f->rindex + f->rindex_shown) % f->max_size];
689 static Frame *frame_queue_peek_next(FrameQueue *f)
691 return &f->queue[(f->rindex + f->rindex_shown + 1) % f->max_size];
694 static Frame *frame_queue_peek_last(FrameQueue *f)
696 return &f->queue[f->rindex];
699 static Frame *frame_queue_peek_writable(FrameQueue *f)
701 /* wait until we have space to put a new frame */
702 SDL_LockMutex(f->mutex);
703 while (f->size >= f->max_size &&
704 !f->pktq->abort_request) {
705 SDL_CondWait(f->cond, f->mutex);
707 SDL_UnlockMutex(f->mutex);
709 if (f->pktq->abort_request)
712 return &f->queue[f->windex];
715 static Frame *frame_queue_peek_readable(FrameQueue *f)
717 /* wait until we have a readable a new frame */
718 SDL_LockMutex(f->mutex);
719 while (f->size - f->rindex_shown <= 0 &&
720 !f->pktq->abort_request) {
721 SDL_CondWait(f->cond, f->mutex);
723 SDL_UnlockMutex(f->mutex);
725 if (f->pktq->abort_request)
728 return &f->queue[(f->rindex + f->rindex_shown) % f->max_size];
731 static void frame_queue_push(FrameQueue *f)
733 if (++f->windex == f->max_size)
735 SDL_LockMutex(f->mutex);
737 SDL_CondSignal(f->cond);
738 SDL_UnlockMutex(f->mutex);
741 static void frame_queue_next(FrameQueue *f)
743 if (f->keep_last && !f->rindex_shown) {
747 frame_queue_unref_item(&f->queue[f->rindex]);
748 if (++f->rindex == f->max_size)
750 SDL_LockMutex(f->mutex);
752 SDL_CondSignal(f->cond);
753 SDL_UnlockMutex(f->mutex);
756 /* jump back to the previous frame if available by resetting rindex_shown */
757 static int frame_queue_prev(FrameQueue *f)
759 int ret = f->rindex_shown;
764 /* return the number of undisplayed frames in the queue */
765 static int frame_queue_nb_remaining(FrameQueue *f)
767 return f->size - f->rindex_shown;
770 /* return last shown position */
771 static int64_t frame_queue_last_pos(FrameQueue *f)
773 Frame *fp = &f->queue[f->rindex];
774 if (f->rindex_shown && fp->serial == f->pktq->serial)
780 static inline void fill_rectangle(SDL_Surface *screen,
781 int x, int y, int w, int h, int color, int update)
788 SDL_FillRect(screen, &rect, color);
789 if (update && w > 0 && h > 0)
790 SDL_UpdateRect(screen, x, y, w, h);
793 /* draw only the border of a rectangle */
794 static void fill_border(int xleft, int ytop, int width, int height, int x, int y, int w, int h, int color, int update)
798 /* fill the background */
802 w2 = width - (x + w);
808 h2 = height - (y + h);
811 fill_rectangle(screen,
815 fill_rectangle(screen,
816 xleft + width - w2, ytop,
819 fill_rectangle(screen,
823 fill_rectangle(screen,
824 xleft + w1, ytop + height - h2,
829 #define ALPHA_BLEND(a, oldp, newp, s)\
830 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
832 #define RGBA_IN(r, g, b, a, s)\
834 unsigned int v = ((const uint32_t *)(s))[0];\
835 a = (v >> 24) & 0xff;\
836 r = (v >> 16) & 0xff;\
837 g = (v >> 8) & 0xff;\
841 #define YUVA_IN(y, u, v, a, s, pal)\
843 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
844 a = (val >> 24) & 0xff;\
845 y = (val >> 16) & 0xff;\
846 u = (val >> 8) & 0xff;\
850 #define YUVA_OUT(d, y, u, v, a)\
852 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
858 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
860 int wrap, wrap3, width2, skip2;
861 int y, u, v, a, u1, v1, a1, w, h;
862 uint8_t *lum, *cb, *cr;
865 int dstx, dsty, dstw, dsth;
867 dstw = av_clip(rect->w, 0, imgw);
868 dsth = av_clip(rect->h, 0, imgh);
869 dstx = av_clip(rect->x, 0, imgw - dstw);
870 dsty = av_clip(rect->y, 0, imgh - dsth);
871 lum = dst->data[0] + dsty * dst->linesize[0];
872 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
873 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
875 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
877 wrap = dst->linesize[0];
878 wrap3 = rect->pict.linesize[0];
879 p = rect->pict.data[0];
880 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
888 YUVA_IN(y, u, v, a, p, pal);
889 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
890 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
891 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
897 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
898 YUVA_IN(y, u, v, a, p, pal);
902 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
904 YUVA_IN(y, u, v, a, p + BPP, pal);
908 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
909 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
910 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
917 YUVA_IN(y, u, v, a, p, pal);
918 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
919 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
920 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
924 p += wrap3 - dstw * BPP;
925 lum += wrap - dstw - dstx;
926 cb += dst->linesize[1] - width2 - skip2;
927 cr += dst->linesize[2] - width2 - skip2;
929 for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
935 YUVA_IN(y, u, v, a, p, pal);
939 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
942 YUVA_IN(y, u, v, a, p, pal);
946 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
947 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
948 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
954 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
955 YUVA_IN(y, u, v, a, p, pal);
959 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
961 YUVA_IN(y, u, v, a, p + BPP, pal);
965 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
969 YUVA_IN(y, u, v, a, p, pal);
973 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
975 YUVA_IN(y, u, v, a, p + BPP, pal);
979 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
981 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
982 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
986 p += -wrap3 + 2 * BPP;
990 YUVA_IN(y, u, v, a, p, pal);
994 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
997 YUVA_IN(y, u, v, a, p, pal);
1001 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
1002 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
1003 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
1009 p += wrap3 + (wrap3 - dstw * BPP);
1010 lum += wrap + (wrap - dstw - dstx);
1011 cb += dst->linesize[1] - width2 - skip2;
1012 cr += dst->linesize[2] - width2 - skip2;
1014 /* handle odd height */
1021 YUVA_IN(y, u, v, a, p, pal);
1022 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
1023 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
1024 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
1030 for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
1031 YUVA_IN(y, u, v, a, p, pal);
1035 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
1037 YUVA_IN(y, u, v, a, p + BPP, pal);
1041 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
1042 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
1043 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
1050 YUVA_IN(y, u, v, a, p, pal);
1051 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
1052 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
1053 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
1058 static void free_picture(Frame *vp)
1061 SDL_FreeYUVOverlay(vp->bmp);
1066 static void calculate_display_rect(SDL_Rect *rect,
1067 int scr_xleft, int scr_ytop, int scr_width, int scr_height,
1068 int pic_width, int pic_height, AVRational pic_sar)
1071 int width, height, x, y;
1073 if (pic_sar.num == 0)
1076 aspect_ratio = av_q2d(pic_sar);
1078 if (aspect_ratio <= 0.0)
1080 aspect_ratio *= (float)pic_width / (float)pic_height;
1082 /* XXX: we suppose the screen has a 1.0 pixel ratio */
1083 height = scr_height;
1084 width = ((int)rint(height * aspect_ratio)) & ~1;
1085 if (width > scr_width) {
1087 height = ((int)rint(width / aspect_ratio)) & ~1;
1089 x = (scr_width - width) / 2;
1090 y = (scr_height - height) / 2;
1091 rect->x = scr_xleft + x;
1092 rect->y = scr_ytop + y;
1093 rect->w = FFMAX(width, 1);
1094 rect->h = FFMAX(height, 1);
1097 static void video_image_display(VideoState *is)
1105 vp = frame_queue_peek(&is->pictq);
1107 if (is->subtitle_st) {
1108 if (frame_queue_nb_remaining(&is->subpq) > 0) {
1109 sp = frame_queue_peek(&is->subpq);
1111 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
1112 SDL_LockYUVOverlay (vp->bmp);
1114 pict.data[0] = vp->bmp->pixels[0];
1115 pict.data[1] = vp->bmp->pixels[2];
1116 pict.data[2] = vp->bmp->pixels[1];
1118 pict.linesize[0] = vp->bmp->pitches[0];
1119 pict.linesize[1] = vp->bmp->pitches[2];
1120 pict.linesize[2] = vp->bmp->pitches[1];
1122 for (i = 0; i < sp->sub.num_rects; i++)
1123 blend_subrect(&pict, sp->sub.rects[i],
1124 vp->bmp->w, vp->bmp->h);
1126 SDL_UnlockYUVOverlay (vp->bmp);
1131 calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp->width, vp->height, vp->sar);
1133 SDL_DisplayYUVOverlay(vp->bmp, &rect);
1135 if (rect.x != is->last_display_rect.x || rect.y != is->last_display_rect.y || rect.w != is->last_display_rect.w || rect.h != is->last_display_rect.h || is->force_refresh) {
1136 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
1137 fill_border(is->xleft, is->ytop, is->width, is->height, rect.x, rect.y, rect.w, rect.h, bgcolor, 1);
1138 is->last_display_rect = rect;
1143 static inline int compute_mod(int a, int b)
1145 return a < 0 ? a%b + b : a%b;
1148 static void video_audio_display(VideoState *s)
1150 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
1151 int ch, channels, h, h2, bgcolor, fgcolor;
1153 int rdft_bits, nb_freq;
1155 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
1157 nb_freq = 1 << (rdft_bits - 1);
1159 /* compute display index : center on currently output samples */
1160 channels = s->audio_tgt.channels;
1161 nb_display_channels = channels;
1163 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
1165 delay = s->audio_write_buf_size;
1168 /* to be more precise, we take into account the time spent since
1169 the last buffer computation */
1170 if (audio_callback_time) {
1171 time_diff = av_gettime_relative() - audio_callback_time;
1172 delay -= (time_diff * s->audio_tgt.freq) / 1000000;
1175 delay += 2 * data_used;
1176 if (delay < data_used)
1179 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
1180 if (s->show_mode == SHOW_MODE_WAVES) {
1182 for (i = 0; i < 1000; i += channels) {
1183 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
1184 int a = s->sample_array[idx];
1185 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
1186 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
1187 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
1189 if (h < score && (b ^ c) < 0) {
1196 s->last_i_start = i_start;
1198 i_start = s->last_i_start;
1201 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
1202 if (s->show_mode == SHOW_MODE_WAVES) {
1203 fill_rectangle(screen,
1204 s->xleft, s->ytop, s->width, s->height,
1207 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
1209 /* total height for one channel */
1210 h = s->height / nb_display_channels;
1211 /* graph height / 2 */
1213 for (ch = 0; ch < nb_display_channels; ch++) {
1215 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
1216 for (x = 0; x < s->width; x++) {
1217 y = (s->sample_array[i] * h2) >> 15;
1224 fill_rectangle(screen,
1225 s->xleft + x, ys, 1, y,
1228 if (i >= SAMPLE_ARRAY_SIZE)
1229 i -= SAMPLE_ARRAY_SIZE;
1233 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
1235 for (ch = 1; ch < nb_display_channels; ch++) {
1236 y = s->ytop + ch * h;
1237 fill_rectangle(screen,
1238 s->xleft, y, s->width, 1,
1241 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
1243 nb_display_channels= FFMIN(nb_display_channels, 2);
1244 if (rdft_bits != s->rdft_bits) {
1245 av_rdft_end(s->rdft);
1246 av_free(s->rdft_data);
1247 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
1248 s->rdft_bits = rdft_bits;
1249 s->rdft_data = av_malloc_array(nb_freq, 4 *sizeof(*s->rdft_data));
1253 for (ch = 0; ch < nb_display_channels; ch++) {
1254 data[ch] = s->rdft_data + 2 * nb_freq * ch;
1256 for (x = 0; x < 2 * nb_freq; x++) {
1257 double w = (x-nb_freq) * (1.0 / nb_freq);
1258 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
1260 if (i >= SAMPLE_ARRAY_SIZE)
1261 i -= SAMPLE_ARRAY_SIZE;
1263 av_rdft_calc(s->rdft, data[ch]);
1265 /* Least efficient way to do this, we should of course
1266 * directly access it but it is more than fast enough. */
1267 for (y = 0; y < s->height; y++) {
1268 double w = 1 / sqrt(nb_freq);
1269 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]));
1270 int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
1271 + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
1274 fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
1276 fill_rectangle(screen,
1277 s->xpos, s->height-y, 1, 1,
1281 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
1284 if (s->xpos >= s->width)
1289 static void stream_close(VideoState *is)
1291 /* XXX: use a special url_shutdown call to abort parse cleanly */
1292 is->abort_request = 1;
1293 SDL_WaitThread(is->read_tid, NULL);
1294 packet_queue_destroy(&is->videoq);
1295 packet_queue_destroy(&is->audioq);
1296 packet_queue_destroy(&is->subtitleq);
1298 /* free all pictures */
1299 frame_queue_destory(&is->pictq);
1300 frame_queue_destory(&is->sampq);
1301 frame_queue_destory(&is->subpq);
1302 SDL_DestroyCond(is->continue_read_thread);
1303 #if !CONFIG_AVFILTER
1304 sws_freeContext(is->img_convert_ctx);
1309 static void do_exit(VideoState *is)
1314 av_lockmgr_register(NULL);
1317 av_freep(&vfilters_list);
1319 avformat_network_deinit();
1323 av_log(NULL, AV_LOG_QUIET, "%s", "");
1327 static void sigterm_handler(int sig)
1332 static void set_default_window_size(int width, int height, AVRational sar)
1335 calculate_display_rect(&rect, 0, 0, INT_MAX, height, width, height, sar);
1336 default_width = rect.w;
1337 default_height = rect.h;
1340 static int video_open(VideoState *is, int force_set_video_mode, Frame *vp)
1342 int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
1345 if (is_full_screen) flags |= SDL_FULLSCREEN;
1346 else flags |= SDL_RESIZABLE;
1348 if (vp && vp->width)
1349 set_default_window_size(vp->width, vp->height, vp->sar);
1351 if (is_full_screen && fs_screen_width) {
1352 w = fs_screen_width;
1353 h = fs_screen_height;
1354 } else if (!is_full_screen && screen_width) {
1361 w = FFMIN(16383, w);
1362 if (screen && is->width == screen->w && screen->w == w
1363 && is->height== screen->h && screen->h == h && !force_set_video_mode)
1365 screen = SDL_SetVideoMode(w, h, 0, flags);
1367 av_log(NULL, AV_LOG_FATAL, "SDL: could not set video mode - exiting\n");
1371 window_title = input_filename;
1372 SDL_WM_SetCaption(window_title, window_title);
1374 is->width = screen->w;
1375 is->height = screen->h;
1380 /* display the current picture, if any */
1381 static void video_display(VideoState *is)
1384 video_open(is, 0, NULL);
1385 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
1386 video_audio_display(is);
1387 else if (is->video_st)
1388 video_image_display(is);
1391 static double get_clock(Clock *c)
1393 if (*c->queue_serial != c->serial)
1398 double time = av_gettime_relative() / 1000000.0;
1399 return c->pts_drift + time - (time - c->last_updated) * (1.0 - c->speed);
1403 static void set_clock_at(Clock *c, double pts, int serial, double time)
1406 c->last_updated = time;
1407 c->pts_drift = c->pts - time;
1411 static void set_clock(Clock *c, double pts, int serial)
1413 double time = av_gettime_relative() / 1000000.0;
1414 set_clock_at(c, pts, serial, time);
1417 static void set_clock_speed(Clock *c, double speed)
1419 set_clock(c, get_clock(c), c->serial);
1423 static void init_clock(Clock *c, int *queue_serial)
1427 c->queue_serial = queue_serial;
1428 set_clock(c, NAN, -1);
1431 static void sync_clock_to_slave(Clock *c, Clock *slave)
1433 double clock = get_clock(c);
1434 double slave_clock = get_clock(slave);
1435 if (!isnan(slave_clock) && (isnan(clock) || fabs(clock - slave_clock) > AV_NOSYNC_THRESHOLD))
1436 set_clock(c, slave_clock, slave->serial);
1439 static int get_master_sync_type(VideoState *is) {
1440 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1442 return AV_SYNC_VIDEO_MASTER;
1444 return AV_SYNC_AUDIO_MASTER;
1445 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1447 return AV_SYNC_AUDIO_MASTER;
1449 return AV_SYNC_EXTERNAL_CLOCK;
1451 return AV_SYNC_EXTERNAL_CLOCK;
1455 /* get the current master clock value */
1456 static double get_master_clock(VideoState *is)
1460 switch (get_master_sync_type(is)) {
1461 case AV_SYNC_VIDEO_MASTER:
1462 val = get_clock(&is->vidclk);
1464 case AV_SYNC_AUDIO_MASTER:
1465 val = get_clock(&is->audclk);
1468 val = get_clock(&is->extclk);
1474 static void check_external_clock_speed(VideoState *is) {
1475 if (is->video_stream >= 0 && is->videoq.nb_packets <= MIN_FRAMES / 2 ||
1476 is->audio_stream >= 0 && is->audioq.nb_packets <= MIN_FRAMES / 2) {
1477 set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP));
1478 } else if ((is->video_stream < 0 || is->videoq.nb_packets > MIN_FRAMES * 2) &&
1479 (is->audio_stream < 0 || is->audioq.nb_packets > MIN_FRAMES * 2)) {
1480 set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP));
1482 double speed = is->extclk.speed;
1484 set_clock_speed(&is->extclk, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed));
1488 /* seek in the stream */
1489 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1491 if (!is->seek_req) {
1494 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1496 is->seek_flags |= AVSEEK_FLAG_BYTE;
1498 SDL_CondSignal(is->continue_read_thread);
1502 /* pause or resume the video */
1503 static void stream_toggle_pause(VideoState *is)
1506 is->frame_timer += av_gettime_relative() / 1000000.0 + is->vidclk.pts_drift - is->vidclk.pts;
1507 if (is->read_pause_return != AVERROR(ENOSYS)) {
1508 is->vidclk.paused = 0;
1510 set_clock(&is->vidclk, get_clock(&is->vidclk), is->vidclk.serial);
1512 set_clock(&is->extclk, get_clock(&is->extclk), is->extclk.serial);
1513 is->paused = is->audclk.paused = is->vidclk.paused = is->extclk.paused = !is->paused;
1516 static void toggle_pause(VideoState *is)
1518 stream_toggle_pause(is);
1522 static void step_to_next_frame(VideoState *is)
1524 /* if the stream is paused unpause it, then step */
1526 stream_toggle_pause(is);
1530 static double compute_target_delay(double delay, VideoState *is)
1532 double sync_threshold, diff;
1534 /* update delay to follow master synchronisation source */
1535 if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) {
1536 /* if video is slave, we try to correct big delays by
1537 duplicating or deleting a frame */
1538 diff = get_clock(&is->vidclk) - get_master_clock(is);
1540 /* skip or repeat frame. We take into account the
1541 delay to compute the threshold. I still don't know
1542 if it is the best guess */
1543 sync_threshold = FFMAX(AV_SYNC_THRESHOLD_MIN, FFMIN(AV_SYNC_THRESHOLD_MAX, delay));
1544 if (!isnan(diff) && fabs(diff) < is->max_frame_duration) {
1545 if (diff <= -sync_threshold)
1546 delay = FFMAX(0, delay + diff);
1547 else if (diff >= sync_threshold && delay > AV_SYNC_FRAMEDUP_THRESHOLD)
1548 delay = delay + diff;
1549 else if (diff >= sync_threshold)
1554 av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
1560 static double vp_duration(VideoState *is, Frame *vp, Frame *nextvp) {
1561 if (vp->serial == nextvp->serial) {
1562 double duration = nextvp->pts - vp->pts;
1563 if (isnan(duration) || duration <= 0 || duration > is->max_frame_duration)
1564 return vp->duration;
1572 static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) {
1573 /* update current video pts */
1574 set_clock(&is->vidclk, pts, serial);
1575 sync_clock_to_slave(&is->extclk, &is->vidclk);
1578 /* called to display each frame */
1579 static void video_refresh(void *opaque, double *remaining_time)
1581 VideoState *is = opaque;
1586 if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime)
1587 check_external_clock_speed(is);
1589 if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) {
1590 time = av_gettime_relative() / 1000000.0;
1591 if (is->force_refresh || is->last_vis_time + rdftspeed < time) {
1593 is->last_vis_time = time;
1595 *remaining_time = FFMIN(*remaining_time, is->last_vis_time + rdftspeed - time);
1600 if (is->force_refresh)
1601 redisplay = frame_queue_prev(&is->pictq);
1603 if (frame_queue_nb_remaining(&is->pictq) == 0) {
1604 // nothing to do, no picture to display in the queue
1606 double last_duration, duration, delay;
1609 /* dequeue the picture */
1610 lastvp = frame_queue_peek_last(&is->pictq);
1611 vp = frame_queue_peek(&is->pictq);
1613 if (vp->serial != is->videoq.serial) {
1614 frame_queue_next(&is->pictq);
1619 if (lastvp->serial != vp->serial && !redisplay)
1620 is->frame_timer = av_gettime_relative() / 1000000.0;
1625 /* compute nominal last_duration */
1626 last_duration = vp_duration(is, lastvp, vp);
1630 delay = compute_target_delay(last_duration, is);
1632 time= av_gettime_relative()/1000000.0;
1633 if (time < is->frame_timer + delay && !redisplay) {
1634 *remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time);
1638 is->frame_timer += delay;
1639 if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX)
1640 is->frame_timer = time;
1642 SDL_LockMutex(is->pictq.mutex);
1643 if (!redisplay && !isnan(vp->pts))
1644 update_video_pts(is, vp->pts, vp->pos, vp->serial);
1645 SDL_UnlockMutex(is->pictq.mutex);
1647 if (frame_queue_nb_remaining(&is->pictq) > 1) {
1648 Frame *nextvp = frame_queue_peek_next(&is->pictq);
1649 duration = vp_duration(is, vp, nextvp);
1650 if(!is->step && (redisplay || framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){
1652 is->frame_drops_late++;
1653 frame_queue_next(&is->pictq);
1659 if (is->subtitle_st) {
1660 while (frame_queue_nb_remaining(&is->subpq) > 0) {
1661 sp = frame_queue_peek(&is->subpq);
1663 if (frame_queue_nb_remaining(&is->subpq) > 1)
1664 sp2 = frame_queue_peek_next(&is->subpq);
1668 if (sp->serial != is->subtitleq.serial
1669 || (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1670 || (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1672 frame_queue_next(&is->subpq);
1680 /* display picture */
1681 if (!display_disable && is->show_mode == SHOW_MODE_VIDEO)
1684 frame_queue_next(&is->pictq);
1686 if (is->step && !is->paused)
1687 stream_toggle_pause(is);
1690 is->force_refresh = 0;
1692 static int64_t last_time;
1694 int aqsize, vqsize, sqsize;
1697 cur_time = av_gettime_relative();
1698 if (!last_time || (cur_time - last_time) >= 30000) {
1703 aqsize = is->audioq.size;
1705 vqsize = is->videoq.size;
1706 if (is->subtitle_st)
1707 sqsize = is->subtitleq.size;
1709 if (is->audio_st && is->video_st)
1710 av_diff = get_clock(&is->audclk) - get_clock(&is->vidclk);
1711 else if (is->video_st)
1712 av_diff = get_master_clock(is) - get_clock(&is->vidclk);
1713 else if (is->audio_st)
1714 av_diff = get_master_clock(is) - get_clock(&is->audclk);
1715 av_log(NULL, AV_LOG_INFO,
1716 "%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1717 get_master_clock(is),
1718 (is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : " ")),
1720 is->frame_drops_early + is->frame_drops_late,
1724 is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
1725 is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
1727 last_time = cur_time;
1732 /* allocate a picture (needs to do that in main thread to avoid
1733 potential locking problems */
1734 static void alloc_picture(VideoState *is)
1739 vp = &is->pictq.queue[is->pictq.windex];
1743 video_open(is, 0, vp);
1745 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1748 bufferdiff = vp->bmp ? FFMAX(vp->bmp->pixels[0], vp->bmp->pixels[1]) - FFMIN(vp->bmp->pixels[0], vp->bmp->pixels[1]) : 0;
1749 if (!vp->bmp || vp->bmp->pitches[0] < vp->width || bufferdiff < (int64_t)vp->height * vp->bmp->pitches[0]) {
1750 /* SDL allocates a buffer smaller than requested if the video
1751 * overlay hardware is unable to support the requested size. */
1752 av_log(NULL, AV_LOG_FATAL,
1753 "Error: the video system does not support an image\n"
1754 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1755 "to reduce the image size.\n", vp->width, vp->height );
1759 SDL_LockMutex(is->pictq.mutex);
1761 SDL_CondSignal(is->pictq.cond);
1762 SDL_UnlockMutex(is->pictq.mutex);
1765 static void duplicate_right_border_pixels(SDL_Overlay *bmp) {
1766 int i, width, height;
1768 for (i = 0; i < 3; i++) {
1775 if (bmp->pitches[i] > width) {
1776 maxp = bmp->pixels[i] + bmp->pitches[i] * height - 1;
1777 for (p = bmp->pixels[i] + width - 1; p < maxp; p += bmp->pitches[i])
1783 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial)
1787 #if defined(DEBUG_SYNC) && 0
1788 printf("frame_type=%c pts=%0.3f\n",
1789 av_get_picture_type_char(src_frame->pict_type), pts);
1792 if (!(vp = frame_queue_peek_writable(&is->pictq)))
1795 vp->sar = src_frame->sample_aspect_ratio;
1797 /* alloc or resize hardware picture buffer */
1798 if (!vp->bmp || vp->reallocate || !vp->allocated ||
1799 vp->width != src_frame->width ||
1800 vp->height != src_frame->height) {
1805 vp->width = src_frame->width;
1806 vp->height = src_frame->height;
1808 /* the allocation must be done in the main thread to avoid
1809 locking problems. */
1810 event.type = FF_ALLOC_EVENT;
1811 event.user.data1 = is;
1812 SDL_PushEvent(&event);
1814 /* wait until the picture is allocated */
1815 SDL_LockMutex(is->pictq.mutex);
1816 while (!vp->allocated && !is->videoq.abort_request) {
1817 SDL_CondWait(is->pictq.cond, is->pictq.mutex);
1819 /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
1820 if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
1821 while (!vp->allocated && !is->abort_request) {
1822 SDL_CondWait(is->pictq.cond, is->pictq.mutex);
1825 SDL_UnlockMutex(is->pictq.mutex);
1827 if (is->videoq.abort_request)
1831 /* if the frame is not skipped, then display it */
1833 AVPicture pict = { { 0 } };
1835 /* get a pointer on the bitmap */
1836 SDL_LockYUVOverlay (vp->bmp);
1838 pict.data[0] = vp->bmp->pixels[0];
1839 pict.data[1] = vp->bmp->pixels[2];
1840 pict.data[2] = vp->bmp->pixels[1];
1842 pict.linesize[0] = vp->bmp->pitches[0];
1843 pict.linesize[1] = vp->bmp->pitches[2];
1844 pict.linesize[2] = vp->bmp->pitches[1];
1847 // FIXME use direct rendering
1848 av_picture_copy(&pict, (AVPicture *)src_frame,
1849 src_frame->format, vp->width, vp->height);
1851 av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags);
1852 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1853 vp->width, vp->height, src_frame->format, vp->width, vp->height,
1854 AV_PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
1855 if (!is->img_convert_ctx) {
1856 av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n");
1859 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1860 0, vp->height, pict.data, pict.linesize);
1862 /* workaround SDL PITCH_WORKAROUND */
1863 duplicate_right_border_pixels(vp->bmp);
1864 /* update the bitmap content */
1865 SDL_UnlockYUVOverlay(vp->bmp);
1868 vp->duration = duration;
1870 vp->serial = serial;
1872 /* now we can update the picture count */
1873 frame_queue_push(&is->pictq);
1878 static int get_video_frame(VideoState *is, AVFrame *frame)
1882 if ((got_picture = decoder_decode_frame(&is->viddec, frame, NULL)) < 0)
1888 if (frame->pts != AV_NOPTS_VALUE)
1889 dpts = av_q2d(is->video_st->time_base) * frame->pts;
1891 frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);
1893 if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) {
1894 if (frame->pts != AV_NOPTS_VALUE) {
1895 double diff = dpts - get_master_clock(is);
1896 if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD &&
1897 diff - is->frame_last_filter_delay < 0 &&
1898 is->viddec.pkt_serial == is->vidclk.serial &&
1899 is->videoq.nb_packets) {
1900 is->frame_drops_early++;
1901 av_frame_unref(frame);
1912 static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,
1913 AVFilterContext *source_ctx, AVFilterContext *sink_ctx)
1916 int nb_filters = graph->nb_filters;
1917 AVFilterInOut *outputs = NULL, *inputs = NULL;
1920 outputs = avfilter_inout_alloc();
1921 inputs = avfilter_inout_alloc();
1922 if (!outputs || !inputs) {
1923 ret = AVERROR(ENOMEM);
1927 outputs->name = av_strdup("in");
1928 outputs->filter_ctx = source_ctx;
1929 outputs->pad_idx = 0;
1930 outputs->next = NULL;
1932 inputs->name = av_strdup("out");
1933 inputs->filter_ctx = sink_ctx;
1934 inputs->pad_idx = 0;
1935 inputs->next = NULL;
1937 if ((ret = avfilter_graph_parse_ptr(graph, filtergraph, &inputs, &outputs, NULL)) < 0)
1940 if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)
1944 /* Reorder the filters to ensure that inputs of the custom filters are merged first */
1945 for (i = 0; i < graph->nb_filters - nb_filters; i++)
1946 FFSWAP(AVFilterContext*, graph->filters[i], graph->filters[i + nb_filters]);
1948 ret = avfilter_graph_config(graph, NULL);
1950 avfilter_inout_free(&outputs);
1951 avfilter_inout_free(&inputs);
1955 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame)
1957 static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE };
1958 char sws_flags_str[128];
1959 char buffersrc_args[256];
1961 AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter = NULL;
1962 AVCodecContext *codec = is->video_st->codec;
1963 AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL);
1965 av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags);
1966 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%"PRId64, sws_flags);
1967 graph->scale_sws_opts = av_strdup(sws_flags_str);
1969 snprintf(buffersrc_args, sizeof(buffersrc_args),
1970 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
1971 frame->width, frame->height, frame->format,
1972 is->video_st->time_base.num, is->video_st->time_base.den,
1973 codec->sample_aspect_ratio.num, FFMAX(codec->sample_aspect_ratio.den, 1));
1974 if (fr.num && fr.den)
1975 av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den);
1977 if ((ret = avfilter_graph_create_filter(&filt_src,
1978 avfilter_get_by_name("buffer"),
1979 "ffplay_buffer", buffersrc_args, NULL,
1983 ret = avfilter_graph_create_filter(&filt_out,
1984 avfilter_get_by_name("buffersink"),
1985 "ffplay_buffersink", NULL, NULL, graph);
1989 if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
1992 last_filter = filt_out;
1994 /* Note: this macro adds a filter before the lastly added filter, so the
1995 * processing order of the filters is in reverse */
1996 #define INSERT_FILT(name, arg) do { \
1997 AVFilterContext *filt_ctx; \
1999 ret = avfilter_graph_create_filter(&filt_ctx, \
2000 avfilter_get_by_name(name), \
2001 "ffplay_" name, arg, NULL, graph); \
2005 ret = avfilter_link(filt_ctx, 0, last_filter, 0); \
2009 last_filter = filt_ctx; \
2012 /* SDL YUV code is not handling odd width/height for some driver
2013 * combinations, therefore we crop the picture to an even width/height. */
2014 INSERT_FILT("crop", "floor(in_w/2)*2:floor(in_h/2)*2");
2017 AVDictionaryEntry *rotate_tag = av_dict_get(is->video_st->metadata, "rotate", NULL, 0);
2018 if (rotate_tag && *rotate_tag->value && strcmp(rotate_tag->value, "0")) {
2019 if (!strcmp(rotate_tag->value, "90")) {
2020 INSERT_FILT("transpose", "clock");
2021 } else if (!strcmp(rotate_tag->value, "180")) {
2022 INSERT_FILT("hflip", NULL);
2023 INSERT_FILT("vflip", NULL);
2024 } else if (!strcmp(rotate_tag->value, "270")) {
2025 INSERT_FILT("transpose", "cclock");
2027 char rotate_buf[64];
2028 snprintf(rotate_buf, sizeof(rotate_buf), "%s*PI/180", rotate_tag->value);
2029 INSERT_FILT("rotate", rotate_buf);
2034 if ((ret = configure_filtergraph(graph, vfilters, filt_src, last_filter)) < 0)
2037 is->in_video_filter = filt_src;
2038 is->out_video_filter = filt_out;
2044 static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format)
2046 static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE };
2047 int sample_rates[2] = { 0, -1 };
2048 int64_t channel_layouts[2] = { 0, -1 };
2049 int channels[2] = { 0, -1 };
2050 AVFilterContext *filt_asrc = NULL, *filt_asink = NULL;
2051 char aresample_swr_opts[512] = "";
2052 AVDictionaryEntry *e = NULL;
2053 char asrc_args[256];
2056 avfilter_graph_free(&is->agraph);
2057 if (!(is->agraph = avfilter_graph_alloc()))
2058 return AVERROR(ENOMEM);
2060 while ((e = av_dict_get(swr_opts, "", e, AV_DICT_IGNORE_SUFFIX)))
2061 av_strlcatf(aresample_swr_opts, sizeof(aresample_swr_opts), "%s=%s:", e->key, e->value);
2062 if (strlen(aresample_swr_opts))
2063 aresample_swr_opts[strlen(aresample_swr_opts)-1] = '\0';
2064 av_opt_set(is->agraph, "aresample_swr_opts", aresample_swr_opts, 0);
2066 ret = snprintf(asrc_args, sizeof(asrc_args),
2067 "sample_rate=%d:sample_fmt=%s:channels=%d:time_base=%d/%d",
2068 is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt),
2069 is->audio_filter_src.channels,
2070 1, is->audio_filter_src.freq);
2071 if (is->audio_filter_src.channel_layout)
2072 snprintf(asrc_args + ret, sizeof(asrc_args) - ret,
2073 ":channel_layout=0x%"PRIx64, is->audio_filter_src.channel_layout);
2075 ret = avfilter_graph_create_filter(&filt_asrc,
2076 avfilter_get_by_name("abuffer"), "ffplay_abuffer",
2077 asrc_args, NULL, is->agraph);
2082 ret = avfilter_graph_create_filter(&filt_asink,
2083 avfilter_get_by_name("abuffersink"), "ffplay_abuffersink",
2084 NULL, NULL, is->agraph);
2088 if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts, AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
2090 if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0)
2093 if (force_output_format) {
2094 channel_layouts[0] = is->audio_tgt.channel_layout;
2095 channels [0] = is->audio_tgt.channels;
2096 sample_rates [0] = is->audio_tgt.freq;
2097 if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0)
2099 if ((ret = av_opt_set_int_list(filt_asink, "channel_layouts", channel_layouts, -1, AV_OPT_SEARCH_CHILDREN)) < 0)
2101 if ((ret = av_opt_set_int_list(filt_asink, "channel_counts" , channels , -1, AV_OPT_SEARCH_CHILDREN)) < 0)
2103 if ((ret = av_opt_set_int_list(filt_asink, "sample_rates" , sample_rates , -1, AV_OPT_SEARCH_CHILDREN)) < 0)
2108 if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0)
2111 is->in_audio_filter = filt_asrc;
2112 is->out_audio_filter = filt_asink;
2116 avfilter_graph_free(&is->agraph);
2119 #endif /* CONFIG_AVFILTER */
2121 static int audio_thread(void *arg)
2123 VideoState *is = arg;
2124 AVFrame *frame = av_frame_alloc();
2127 int last_serial = -1;
2128 int64_t dec_channel_layout;
2136 return AVERROR(ENOMEM);
2139 if ((got_frame = decoder_decode_frame(&is->auddec, frame, NULL)) < 0)
2143 tb = (AVRational){1, frame->sample_rate};
2146 dec_channel_layout = get_valid_channel_layout(frame->channel_layout, av_frame_get_channels(frame));
2149 cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels,
2150 frame->format, av_frame_get_channels(frame)) ||
2151 is->audio_filter_src.channel_layout != dec_channel_layout ||
2152 is->audio_filter_src.freq != frame->sample_rate ||
2153 is->auddec.pkt_serial != last_serial;
2156 char buf1[1024], buf2[1024];
2157 av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout);
2158 av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout);
2159 av_log(NULL, AV_LOG_DEBUG,
2160 "Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n",
2161 is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, last_serial,
2162 frame->sample_rate, av_frame_get_channels(frame), av_get_sample_fmt_name(frame->format), buf2, is->auddec.pkt_serial);
2164 is->audio_filter_src.fmt = frame->format;
2165 is->audio_filter_src.channels = av_frame_get_channels(frame);
2166 is->audio_filter_src.channel_layout = dec_channel_layout;
2167 is->audio_filter_src.freq = frame->sample_rate;
2168 last_serial = is->auddec.pkt_serial;
2170 if ((ret = configure_audio_filters(is, afilters, 1)) < 0)
2174 if ((ret = av_buffersrc_add_frame(is->in_audio_filter, frame)) < 0)
2177 while ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, frame, 0)) >= 0) {
2178 tb = is->out_audio_filter->inputs[0]->time_base;
2180 if (!(af = frame_queue_peek_writable(&is->sampq)))
2183 af->pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb);
2184 af->pos = av_frame_get_pkt_pos(frame);
2185 af->serial = is->auddec.pkt_serial;
2186 af->duration = av_q2d((AVRational){frame->nb_samples, frame->sample_rate});
2188 av_frame_move_ref(af->frame, frame);
2189 frame_queue_push(&is->sampq);
2192 if (is->audioq.serial != is->auddec.pkt_serial)
2195 if (ret == AVERROR_EOF)
2196 is->auddec.finished = is->auddec.pkt_serial;
2199 } while (ret >= 0 || ret == AVERROR(EAGAIN) || ret == AVERROR_EOF);
2202 avfilter_graph_free(&is->agraph);
2204 av_frame_free(&frame);
2208 static int video_thread(void *arg)
2210 VideoState *is = arg;
2211 AVFrame *frame = av_frame_alloc();
2215 AVRational tb = is->video_st->time_base;
2216 AVRational frame_rate = av_guess_frame_rate(is->ic, is->video_st, NULL);
2219 AVFilterGraph *graph = avfilter_graph_alloc();
2220 AVFilterContext *filt_out = NULL, *filt_in = NULL;
2223 enum AVPixelFormat last_format = -2;
2224 int last_serial = -1;
2225 int last_vfilter_idx = 0;
2229 ret = get_video_frame(is, frame);
2236 if ( last_w != frame->width
2237 || last_h != frame->height
2238 || last_format != frame->format
2239 || last_serial != is->viddec.pkt_serial
2240 || last_vfilter_idx != is->vfilter_idx) {
2241 av_log(NULL, AV_LOG_DEBUG,
2242 "Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n",
2244 (const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial,
2245 frame->width, frame->height,
2246 (const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), is->viddec.pkt_serial);
2247 avfilter_graph_free(&graph);
2248 graph = avfilter_graph_alloc();
2249 if ((ret = configure_video_filters(graph, is, vfilters_list ? vfilters_list[is->vfilter_idx] : NULL, frame)) < 0) {
2251 event.type = FF_QUIT_EVENT;
2252 event.user.data1 = is;
2253 SDL_PushEvent(&event);
2256 filt_in = is->in_video_filter;
2257 filt_out = is->out_video_filter;
2258 last_w = frame->width;
2259 last_h = frame->height;
2260 last_format = frame->format;
2261 last_serial = is->viddec.pkt_serial;
2262 last_vfilter_idx = is->vfilter_idx;
2263 frame_rate = filt_out->inputs[0]->frame_rate;
2266 ret = av_buffersrc_add_frame(filt_in, frame);
2271 is->frame_last_returned_time = av_gettime_relative() / 1000000.0;
2273 ret = av_buffersink_get_frame_flags(filt_out, frame, 0);
2275 if (ret == AVERROR_EOF)
2276 is->viddec.finished = is->viddec.pkt_serial;
2281 is->frame_last_filter_delay = av_gettime_relative() / 1000000.0 - is->frame_last_returned_time;
2282 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
2283 is->frame_last_filter_delay = 0;
2284 tb = filt_out->inputs[0]->time_base;
2286 duration = (frame_rate.num && frame_rate.den ? av_q2d((AVRational){frame_rate.den, frame_rate.num}) : 0);
2287 pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb);
2288 ret = queue_picture(is, frame, pts, duration, av_frame_get_pkt_pos(frame), is->viddec.pkt_serial);
2289 av_frame_unref(frame);
2299 avfilter_graph_free(&graph);
2301 av_frame_free(&frame);
2305 static int subtitle_thread(void *arg)
2307 VideoState *is = arg;
2312 int r, g, b, y, u, v, a;
2315 if (!(sp = frame_queue_peek_writable(&is->subpq)))
2318 if ((got_subtitle = decoder_decode_frame(&is->subdec, NULL, &sp->sub)) < 0)
2323 if (got_subtitle && sp->sub.format == 0) {
2324 if (sp->sub.pts != AV_NOPTS_VALUE)
2325 pts = sp->sub.pts / (double)AV_TIME_BASE;
2327 sp->serial = is->subdec.pkt_serial;
2329 for (i = 0; i < sp->sub.num_rects; i++)
2331 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
2333 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
2334 y = RGB_TO_Y_CCIR(r, g, b);
2335 u = RGB_TO_U_CCIR(r, g, b, 0);
2336 v = RGB_TO_V_CCIR(r, g, b, 0);
2337 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
2341 /* now we can update the picture count */
2342 frame_queue_push(&is->subpq);
2343 } else if (got_subtitle) {
2344 avsubtitle_free(&sp->sub);
2350 /* copy samples for viewing in editor window */
2351 static void update_sample_display(VideoState *is, short *samples, int samples_size)
2355 size = samples_size / sizeof(short);
2357 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
2360 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
2362 is->sample_array_index += len;
2363 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
2364 is->sample_array_index = 0;
2369 /* return the wanted number of samples to get better sync if sync_type is video
2370 * or external master clock */
2371 static int synchronize_audio(VideoState *is, int nb_samples)
2373 int wanted_nb_samples = nb_samples;
2375 /* if not master, then we try to remove or add samples to correct the clock */
2376 if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) {
2377 double diff, avg_diff;
2378 int min_nb_samples, max_nb_samples;
2380 diff = get_clock(&is->audclk) - get_master_clock(is);
2382 if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) {
2383 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2384 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2385 /* not enough measures to have a correct estimate */
2386 is->audio_diff_avg_count++;
2388 /* estimate the A-V difference */
2389 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2391 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2392 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq);
2393 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2394 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2395 wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
2397 av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n",
2398 diff, avg_diff, wanted_nb_samples - nb_samples,
2399 is->audio_clock, is->audio_diff_threshold);
2402 /* too big difference : may be initial PTS errors, so
2404 is->audio_diff_avg_count = 0;
2405 is->audio_diff_cum = 0;
2409 return wanted_nb_samples;
2413 * Decode one audio frame and return its uncompressed size.
2415 * The processed audio frame is decoded, converted if required, and
2416 * stored in is->audio_buf, with size in bytes given by the return
2419 static int audio_decode_frame(VideoState *is)
2421 int data_size, resampled_data_size;
2422 int64_t dec_channel_layout;
2423 av_unused double audio_clock0;
2424 int wanted_nb_samples;
2431 if (!(af = frame_queue_peek_readable(&is->sampq)))
2433 frame_queue_next(&is->sampq);
2434 } while (af->serial != is->audioq.serial);
2436 data_size = av_samples_get_buffer_size(NULL, av_frame_get_channels(af->frame),
2437 af->frame->nb_samples,
2438 af->frame->format, 1);
2440 dec_channel_layout =
2441 (af->frame->channel_layout && av_frame_get_channels(af->frame) == av_get_channel_layout_nb_channels(af->frame->channel_layout)) ?
2442 af->frame->channel_layout : av_get_default_channel_layout(av_frame_get_channels(af->frame));
2443 wanted_nb_samples = synchronize_audio(is, af->frame->nb_samples);
2445 if (af->frame->format != is->audio_src.fmt ||
2446 dec_channel_layout != is->audio_src.channel_layout ||
2447 af->frame->sample_rate != is->audio_src.freq ||
2448 (wanted_nb_samples != af->frame->nb_samples && !is->swr_ctx)) {
2449 swr_free(&is->swr_ctx);
2450 is->swr_ctx = swr_alloc_set_opts(NULL,
2451 is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
2452 dec_channel_layout, af->frame->format, af->frame->sample_rate,
2454 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
2455 av_log(NULL, AV_LOG_ERROR,
2456 "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
2457 af->frame->sample_rate, av_get_sample_fmt_name(af->frame->format), av_frame_get_channels(af->frame),
2458 is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);
2459 swr_free(&is->swr_ctx);
2462 is->audio_src.channel_layout = dec_channel_layout;
2463 is->audio_src.channels = av_frame_get_channels(af->frame);
2464 is->audio_src.freq = af->frame->sample_rate;
2465 is->audio_src.fmt = af->frame->format;
2469 const uint8_t **in = (const uint8_t **)af->frame->extended_data;
2470 uint8_t **out = &is->audio_buf1;
2471 int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate + 256;
2472 int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0);
2475 av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n");
2478 if (wanted_nb_samples != af->frame->nb_samples) {
2479 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - af->frame->nb_samples) * is->audio_tgt.freq / af->frame->sample_rate,
2480 wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate) < 0) {
2481 av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n");
2485 av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size);
2486 if (!is->audio_buf1)
2487 return AVERROR(ENOMEM);
2488 len2 = swr_convert(is->swr_ctx, out, out_count, in, af->frame->nb_samples);
2490 av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n");
2493 if (len2 == out_count) {
2494 av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n");
2495 if (swr_init(is->swr_ctx) < 0)
2496 swr_free(&is->swr_ctx);
2498 is->audio_buf = is->audio_buf1;
2499 resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2501 is->audio_buf = af->frame->data[0];
2502 resampled_data_size = data_size;
2505 audio_clock0 = is->audio_clock;
2506 /* update the audio clock with the pts */
2507 if (!isnan(af->pts))
2508 is->audio_clock = af->pts + (double) af->frame->nb_samples / af->frame->sample_rate;
2510 is->audio_clock = NAN;
2511 is->audio_clock_serial = af->serial;
2514 static double last_clock;
2515 printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n",
2516 is->audio_clock - last_clock,
2517 is->audio_clock, audio_clock0);
2518 last_clock = is->audio_clock;
2521 return resampled_data_size;
2524 /* prepare a new audio buffer */
2525 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2527 VideoState *is = opaque;
2528 int audio_size, len1;
2530 audio_callback_time = av_gettime_relative();
2533 if (is->audio_buf_index >= is->audio_buf_size) {
2534 audio_size = audio_decode_frame(is);
2535 if (audio_size < 0) {
2536 /* if error, just output silence */
2537 is->audio_buf = is->silence_buf;
2538 is->audio_buf_size = sizeof(is->silence_buf) / is->audio_tgt.frame_size * is->audio_tgt.frame_size;
2540 if (is->show_mode != SHOW_MODE_VIDEO)
2541 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2542 is->audio_buf_size = audio_size;
2544 is->audio_buf_index = 0;
2546 len1 = is->audio_buf_size - is->audio_buf_index;
2549 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2552 is->audio_buf_index += len1;
2554 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2555 /* Let's assume the audio driver that is used by SDL has two periods. */
2556 if (!isnan(is->audio_clock)) {
2557 set_clock_at(&is->audclk, is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / is->audio_tgt.bytes_per_sec, is->audio_clock_serial, audio_callback_time / 1000000.0);
2558 sync_clock_to_slave(&is->extclk, &is->audclk);
2562 static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params)
2564 SDL_AudioSpec wanted_spec, spec;
2566 static const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6};
2567 static const int next_sample_rates[] = {0, 44100, 48000, 96000, 192000};
2568 int next_sample_rate_idx = FF_ARRAY_ELEMS(next_sample_rates) - 1;
2570 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2572 wanted_nb_channels = atoi(env);
2573 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2575 if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) {
2576 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2577 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2579 wanted_nb_channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2580 wanted_spec.channels = wanted_nb_channels;
2581 wanted_spec.freq = wanted_sample_rate;
2582 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2583 av_log(NULL, AV_LOG_ERROR, "Invalid sample rate or channel count!\n");
2586 while (next_sample_rate_idx && next_sample_rates[next_sample_rate_idx] >= wanted_spec.freq)
2587 next_sample_rate_idx--;
2588 wanted_spec.format = AUDIO_S16SYS;
2589 wanted_spec.silence = 0;
2590 wanted_spec.samples = FFMAX(SDL_AUDIO_MIN_BUFFER_SIZE, 2 << av_log2(wanted_spec.freq / SDL_AUDIO_MAX_CALLBACKS_PER_SEC));
2591 wanted_spec.callback = sdl_audio_callback;
2592 wanted_spec.userdata = opaque;
2593 while (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2594 av_log(NULL, AV_LOG_WARNING, "SDL_OpenAudio (%d channels, %d Hz): %s\n",
2595 wanted_spec.channels, wanted_spec.freq, SDL_GetError());
2596 wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)];
2597 if (!wanted_spec.channels) {
2598 wanted_spec.freq = next_sample_rates[next_sample_rate_idx--];
2599 wanted_spec.channels = wanted_nb_channels;
2600 if (!wanted_spec.freq) {
2601 av_log(NULL, AV_LOG_ERROR,
2602 "No more combinations to try, audio open failed\n");
2606 wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels);
2608 if (spec.format != AUDIO_S16SYS) {
2609 av_log(NULL, AV_LOG_ERROR,
2610 "SDL advised audio format %d is not supported!\n", spec.format);
2613 if (spec.channels != wanted_spec.channels) {
2614 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2615 if (!wanted_channel_layout) {
2616 av_log(NULL, AV_LOG_ERROR,
2617 "SDL advised channel count %d is not supported!\n", spec.channels);
2622 audio_hw_params->fmt = AV_SAMPLE_FMT_S16;
2623 audio_hw_params->freq = spec.freq;
2624 audio_hw_params->channel_layout = wanted_channel_layout;
2625 audio_hw_params->channels = spec.channels;
2626 audio_hw_params->frame_size = av_samples_get_buffer_size(NULL, audio_hw_params->channels, 1, audio_hw_params->fmt, 1);
2627 audio_hw_params->bytes_per_sec = av_samples_get_buffer_size(NULL, audio_hw_params->channels, audio_hw_params->freq, audio_hw_params->fmt, 1);
2628 if (audio_hw_params->bytes_per_sec <= 0 || audio_hw_params->frame_size <= 0) {
2629 av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size failed\n");
2635 /* open a given stream. Return 0 if OK */
2636 static int stream_component_open(VideoState *is, int stream_index)
2638 AVFormatContext *ic = is->ic;
2639 AVCodecContext *avctx;
2641 const char *forced_codec_name = NULL;
2643 AVDictionaryEntry *t = NULL;
2644 int sample_rate, nb_channels;
2645 int64_t channel_layout;
2647 int stream_lowres = lowres;
2649 if (stream_index < 0 || stream_index >= ic->nb_streams)
2651 avctx = ic->streams[stream_index]->codec;
2653 codec = avcodec_find_decoder(avctx->codec_id);
2655 switch(avctx->codec_type){
2656 case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; forced_codec_name = audio_codec_name; break;
2657 case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break;
2658 case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; forced_codec_name = video_codec_name; break;
2660 if (forced_codec_name)
2661 codec = avcodec_find_decoder_by_name(forced_codec_name);
2663 if (forced_codec_name) av_log(NULL, AV_LOG_WARNING,
2664 "No codec could be found with name '%s'\n", forced_codec_name);
2665 else av_log(NULL, AV_LOG_WARNING,
2666 "No codec could be found with id %d\n", avctx->codec_id);
2670 avctx->codec_id = codec->id;
2671 if(stream_lowres > av_codec_get_max_lowres(codec)){
2672 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2673 av_codec_get_max_lowres(codec));
2674 stream_lowres = av_codec_get_max_lowres(codec);
2676 av_codec_set_lowres(avctx, stream_lowres);
2678 if(stream_lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2679 if (fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2680 if(codec->capabilities & CODEC_CAP_DR1)
2681 avctx->flags |= CODEC_FLAG_EMU_EDGE;
2683 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
2684 if (!av_dict_get(opts, "threads", NULL, 0))
2685 av_dict_set(&opts, "threads", "auto", 0);
2687 av_dict_set_int(&opts, "lowres", stream_lowres, 0);
2688 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
2689 av_dict_set(&opts, "refcounted_frames", "1", 0);
2690 if ((ret = avcodec_open2(avctx, codec, &opts)) < 0) {
2693 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2694 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2695 ret = AVERROR_OPTION_NOT_FOUND;
2699 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2700 switch (avctx->codec_type) {
2701 case AVMEDIA_TYPE_AUDIO:
2706 is->audio_filter_src.freq = avctx->sample_rate;
2707 is->audio_filter_src.channels = avctx->channels;
2708 is->audio_filter_src.channel_layout = get_valid_channel_layout(avctx->channel_layout, avctx->channels);
2709 is->audio_filter_src.fmt = avctx->sample_fmt;
2710 if ((ret = configure_audio_filters(is, afilters, 0)) < 0)
2712 link = is->out_audio_filter->inputs[0];
2713 sample_rate = link->sample_rate;
2714 nb_channels = link->channels;
2715 channel_layout = link->channel_layout;
2718 sample_rate = avctx->sample_rate;
2719 nb_channels = avctx->channels;
2720 channel_layout = avctx->channel_layout;
2723 /* prepare audio output */
2724 if ((ret = audio_open(is, channel_layout, nb_channels, sample_rate, &is->audio_tgt)) < 0)
2726 is->audio_hw_buf_size = ret;
2727 is->audio_src = is->audio_tgt;
2728 is->audio_buf_size = 0;
2729 is->audio_buf_index = 0;
2731 /* init averaging filter */
2732 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2733 is->audio_diff_avg_count = 0;
2734 /* since we do not have a precise anough audio fifo fullness,
2735 we correct audio sync only if larger than this threshold */
2736 is->audio_diff_threshold = (double)(is->audio_hw_buf_size) / is->audio_tgt.bytes_per_sec;
2738 is->audio_stream = stream_index;
2739 is->audio_st = ic->streams[stream_index];
2741 packet_queue_start(&is->audioq);
2742 decoder_init(&is->auddec, avctx, &is->audioq, is->continue_read_thread);
2743 if ((is->ic->iformat->flags & (AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK)) && !is->ic->iformat->read_seek) {
2744 is->auddec.start_pts = is->audio_st->start_time;
2745 is->auddec.start_pts_tb = is->audio_st->time_base;
2747 is->audio_tid = SDL_CreateThread(audio_thread, is);
2750 case AVMEDIA_TYPE_VIDEO:
2751 is->video_stream = stream_index;
2752 is->video_st = ic->streams[stream_index];
2754 packet_queue_start(&is->videoq);
2755 decoder_init(&is->viddec, avctx, &is->videoq, is->continue_read_thread);
2756 is->video_tid = SDL_CreateThread(video_thread, is);
2757 is->queue_attachments_req = 1;
2759 case AVMEDIA_TYPE_SUBTITLE:
2760 is->subtitle_stream = stream_index;
2761 is->subtitle_st = ic->streams[stream_index];
2763 packet_queue_start(&is->subtitleq);
2764 decoder_init(&is->subdec, avctx, &is->subtitleq, is->continue_read_thread);
2765 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2772 av_dict_free(&opts);
2777 static void stream_component_close(VideoState *is, int stream_index)
2779 AVFormatContext *ic = is->ic;
2780 AVCodecContext *avctx;
2782 if (stream_index < 0 || stream_index >= ic->nb_streams)
2784 avctx = ic->streams[stream_index]->codec;
2786 switch (avctx->codec_type) {
2787 case AVMEDIA_TYPE_AUDIO:
2788 packet_queue_abort(&is->audioq);
2789 frame_queue_signal(&is->sampq);
2791 SDL_WaitThread(is->audio_tid, NULL);
2793 decoder_destroy(&is->auddec);
2794 packet_queue_flush(&is->audioq);
2795 swr_free(&is->swr_ctx);
2796 av_freep(&is->audio_buf1);
2797 is->audio_buf1_size = 0;
2798 is->audio_buf = NULL;
2801 av_rdft_end(is->rdft);
2802 av_freep(&is->rdft_data);
2807 case AVMEDIA_TYPE_VIDEO:
2808 packet_queue_abort(&is->videoq);
2810 /* note: we also signal this mutex to make sure we deblock the
2811 video thread in all cases */
2812 frame_queue_signal(&is->pictq);
2814 SDL_WaitThread(is->video_tid, NULL);
2816 decoder_destroy(&is->viddec);
2817 packet_queue_flush(&is->videoq);
2819 case AVMEDIA_TYPE_SUBTITLE:
2820 packet_queue_abort(&is->subtitleq);
2822 /* note: we also signal this mutex to make sure we deblock the
2823 video thread in all cases */
2824 frame_queue_signal(&is->subpq);
2826 SDL_WaitThread(is->subtitle_tid, NULL);
2828 decoder_destroy(&is->subdec);
2829 packet_queue_flush(&is->subtitleq);
2835 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2836 avcodec_close(avctx);
2837 switch (avctx->codec_type) {
2838 case AVMEDIA_TYPE_AUDIO:
2839 is->audio_st = NULL;
2840 is->audio_stream = -1;
2842 case AVMEDIA_TYPE_VIDEO:
2843 is->video_st = NULL;
2844 is->video_stream = -1;
2846 case AVMEDIA_TYPE_SUBTITLE:
2847 is->subtitle_st = NULL;
2848 is->subtitle_stream = -1;
2855 static int decode_interrupt_cb(void *ctx)
2857 VideoState *is = ctx;
2858 return is->abort_request;
2861 static int is_realtime(AVFormatContext *s)
2863 if( !strcmp(s->iformat->name, "rtp")
2864 || !strcmp(s->iformat->name, "rtsp")
2865 || !strcmp(s->iformat->name, "sdp")
2869 if(s->pb && ( !strncmp(s->filename, "rtp:", 4)
2870 || !strncmp(s->filename, "udp:", 4)
2877 /* this thread gets the stream from the disk or the network */
2878 static int read_thread(void *arg)
2880 VideoState *is = arg;
2881 AVFormatContext *ic = NULL;
2883 int st_index[AVMEDIA_TYPE_NB];
2884 AVPacket pkt1, *pkt = &pkt1;
2886 int64_t stream_start_time;
2887 int pkt_in_play_range = 0;
2888 AVDictionaryEntry *t;
2889 AVDictionary **opts;
2890 int orig_nb_streams;
2891 SDL_mutex *wait_mutex = SDL_CreateMutex();
2892 int scan_all_pmts_set = 0;
2894 memset(st_index, -1, sizeof(st_index));
2895 is->last_video_stream = is->video_stream = -1;
2896 is->last_audio_stream = is->audio_stream = -1;
2897 is->last_subtitle_stream = is->subtitle_stream = -1;
2899 ic = avformat_alloc_context();
2900 ic->interrupt_callback.callback = decode_interrupt_cb;
2901 ic->interrupt_callback.opaque = is;
2902 if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
2903 av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
2904 scan_all_pmts_set = 1;
2906 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2908 print_error(is->filename, err);
2912 if (scan_all_pmts_set)
2913 av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
2915 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2916 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2917 ret = AVERROR_OPTION_NOT_FOUND;
2923 ic->flags |= AVFMT_FLAG_GENPTS;
2925 av_format_inject_global_side_data(ic);
2927 opts = setup_find_stream_info_opts(ic, codec_opts);
2928 orig_nb_streams = ic->nb_streams;
2930 err = avformat_find_stream_info(ic, opts);
2932 for (i = 0; i < orig_nb_streams; i++)
2933 av_dict_free(&opts[i]);
2937 av_log(NULL, AV_LOG_WARNING,
2938 "%s: could not find codec parameters\n", is->filename);
2944 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use avio_feof() to test for the end
2946 if (seek_by_bytes < 0)
2947 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp("ogg", ic->iformat->name);
2949 is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0;
2951 if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0)))
2952 window_title = av_asprintf("%s - %s", t->value, input_filename);
2954 /* if seeking requested, we execute it */
2955 if (start_time != AV_NOPTS_VALUE) {
2958 timestamp = start_time;
2959 /* add the stream start time */
2960 if (ic->start_time != AV_NOPTS_VALUE)
2961 timestamp += ic->start_time;
2962 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2964 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
2965 is->filename, (double)timestamp / AV_TIME_BASE);
2969 is->realtime = is_realtime(ic);
2971 for (i = 0; i < ic->nb_streams; i++)
2972 ic->streams[i]->discard = AVDISCARD_ALL;
2974 st_index[AVMEDIA_TYPE_VIDEO] =
2975 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2976 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2978 st_index[AVMEDIA_TYPE_AUDIO] =
2979 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2980 wanted_stream[AVMEDIA_TYPE_AUDIO],
2981 st_index[AVMEDIA_TYPE_VIDEO],
2983 if (!video_disable && !subtitle_disable)
2984 st_index[AVMEDIA_TYPE_SUBTITLE] =
2985 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2986 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2987 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2988 st_index[AVMEDIA_TYPE_AUDIO] :
2989 st_index[AVMEDIA_TYPE_VIDEO]),
2992 av_dump_format(ic, 0, is->filename, 0);
2995 is->show_mode = show_mode;
2996 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2997 AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]];
2998 AVCodecContext *avctx = st->codec;
2999 AVRational sar = av_guess_sample_aspect_ratio(ic, st, NULL);
3001 set_default_window_size(avctx->width, avctx->height, sar);
3004 /* open the streams */
3005 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
3006 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
3010 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
3011 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
3013 if (is->show_mode == SHOW_MODE_NONE)
3014 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
3016 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
3017 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
3020 if (is->video_stream < 0 && is->audio_stream < 0) {
3021 av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n",
3027 if (infinite_buffer < 0 && is->realtime)
3028 infinite_buffer = 1;
3031 if (is->abort_request)
3033 if (is->paused != is->last_paused) {
3034 is->last_paused = is->paused;
3036 is->read_pause_return = av_read_pause(ic);
3040 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
3042 (!strcmp(ic->iformat->name, "rtsp") ||
3043 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
3044 /* wait 10 ms to avoid trying to get another packet */
3051 int64_t seek_target = is->seek_pos;
3052 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
3053 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
3054 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
3055 // of the seek_pos/seek_rel variables
3057 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
3059 av_log(NULL, AV_LOG_ERROR,
3060 "%s: error while seeking\n", is->ic->filename);
3062 if (is->audio_stream >= 0) {
3063 packet_queue_flush(&is->audioq);
3064 packet_queue_put(&is->audioq, &flush_pkt);
3066 if (is->subtitle_stream >= 0) {
3067 packet_queue_flush(&is->subtitleq);
3068 packet_queue_put(&is->subtitleq, &flush_pkt);
3070 if (is->video_stream >= 0) {
3071 packet_queue_flush(&is->videoq);
3072 packet_queue_put(&is->videoq, &flush_pkt);
3074 if (is->seek_flags & AVSEEK_FLAG_BYTE) {
3075 set_clock(&is->extclk, NAN, 0);
3077 set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0);
3081 is->queue_attachments_req = 1;
3084 step_to_next_frame(is);
3086 if (is->queue_attachments_req) {
3087 if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) {
3089 if ((ret = av_copy_packet(©, &is->video_st->attached_pic)) < 0)
3091 packet_queue_put(&is->videoq, ©);
3092 packet_queue_put_nullpacket(&is->videoq, is->video_stream);
3094 is->queue_attachments_req = 0;
3097 /* if the queue are full, no need to read more */
3098 if (infinite_buffer<1 &&
3099 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
3100 || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request)
3101 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request
3102 || (is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC))
3103 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) {
3105 SDL_LockMutex(wait_mutex);
3106 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
3107 SDL_UnlockMutex(wait_mutex);
3111 (!is->audio_st || (is->auddec.finished == is->audioq.serial && frame_queue_nb_remaining(&is->sampq) == 0)) &&
3112 (!is->video_st || (is->viddec.finished == is->videoq.serial && frame_queue_nb_remaining(&is->pictq) == 0))) {
3113 if (loop != 1 && (!loop || --loop)) {
3114 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
3115 } else if (autoexit) {
3120 ret = av_read_frame(ic, pkt);
3122 if ((ret == AVERROR_EOF || avio_feof(ic->pb)) && !eof) {
3123 if (is->video_stream >= 0)
3124 packet_queue_put_nullpacket(&is->videoq, is->video_stream);
3125 if (is->audio_stream >= 0)
3126 packet_queue_put_nullpacket(&is->audioq, is->audio_stream);
3127 if (is->subtitle_stream >= 0)
3128 packet_queue_put_nullpacket(&is->subtitleq, is->subtitle_stream);
3131 if (ic->pb && ic->pb->error)
3133 SDL_LockMutex(wait_mutex);
3134 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
3135 SDL_UnlockMutex(wait_mutex);
3140 /* check if packet is in play range specified by user, then queue, otherwise discard */
3141 stream_start_time = ic->streams[pkt->stream_index]->start_time;
3142 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
3143 (pkt->pts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) *
3144 av_q2d(ic->streams[pkt->stream_index]->time_base) -
3145 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
3146 <= ((double)duration / 1000000);
3147 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
3148 packet_queue_put(&is->audioq, pkt);
3149 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range
3150 && !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {
3151 packet_queue_put(&is->videoq, pkt);
3152 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
3153 packet_queue_put(&is->subtitleq, pkt);
3155 av_free_packet(pkt);
3158 /* wait until the end */
3159 while (!is->abort_request) {
3165 /* close each stream */
3166 if (is->audio_stream >= 0)
3167 stream_component_close(is, is->audio_stream);
3168 if (is->video_stream >= 0)
3169 stream_component_close(is, is->video_stream);
3170 if (is->subtitle_stream >= 0)
3171 stream_component_close(is, is->subtitle_stream);
3173 avformat_close_input(&ic);
3180 event.type = FF_QUIT_EVENT;
3181 event.user.data1 = is;
3182 SDL_PushEvent(&event);
3184 SDL_DestroyMutex(wait_mutex);
3188 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
3192 is = av_mallocz(sizeof(VideoState));
3195 av_strlcpy(is->filename, filename, sizeof(is->filename));
3196 is->iformat = iformat;
3200 /* start video display */
3201 if (frame_queue_init(&is->pictq, &is->videoq, VIDEO_PICTURE_QUEUE_SIZE, 1) < 0)
3203 if (frame_queue_init(&is->subpq, &is->subtitleq, SUBPICTURE_QUEUE_SIZE, 0) < 0)
3205 if (frame_queue_init(&is->sampq, &is->audioq, SAMPLE_QUEUE_SIZE, 1) < 0)
3208 packet_queue_init(&is->videoq);
3209 packet_queue_init(&is->audioq);
3210 packet_queue_init(&is->subtitleq);
3212 is->continue_read_thread = SDL_CreateCond();
3214 init_clock(&is->vidclk, &is->videoq.serial);
3215 init_clock(&is->audclk, &is->audioq.serial);
3216 init_clock(&is->extclk, &is->extclk.serial);
3217 is->audio_clock_serial = -1;
3218 is->av_sync_type = av_sync_type;
3219 is->read_tid = SDL_CreateThread(read_thread, is);
3220 if (!is->read_tid) {
3228 static void stream_cycle_channel(VideoState *is, int codec_type)
3230 AVFormatContext *ic = is->ic;
3231 int start_index, stream_index;
3234 AVProgram *p = NULL;
3235 int nb_streams = is->ic->nb_streams;
3237 if (codec_type == AVMEDIA_TYPE_VIDEO) {
3238 start_index = is->last_video_stream;
3239 old_index = is->video_stream;
3240 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
3241 start_index = is->last_audio_stream;
3242 old_index = is->audio_stream;
3244 start_index = is->last_subtitle_stream;
3245 old_index = is->subtitle_stream;
3247 stream_index = start_index;
3249 if (codec_type != AVMEDIA_TYPE_VIDEO && is->video_stream != -1) {
3250 p = av_find_program_from_stream(ic, NULL, is->video_stream);
3252 nb_streams = p->nb_stream_indexes;
3253 for (start_index = 0; start_index < nb_streams; start_index++)
3254 if (p->stream_index[start_index] == stream_index)
3256 if (start_index == nb_streams)
3258 stream_index = start_index;
3263 if (++stream_index >= nb_streams)
3265 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
3268 is->last_subtitle_stream = -1;
3271 if (start_index == -1)
3275 if (stream_index == start_index)
3277 st = is->ic->streams[p ? p->stream_index[stream_index] : stream_index];
3278 if (st->codec->codec_type == codec_type) {
3279 /* check that parameters are OK */
3280 switch (codec_type) {
3281 case AVMEDIA_TYPE_AUDIO:
3282 if (st->codec->sample_rate != 0 &&
3283 st->codec->channels != 0)
3286 case AVMEDIA_TYPE_VIDEO:
3287 case AVMEDIA_TYPE_SUBTITLE:
3295 if (p && stream_index != -1)
3296 stream_index = p->stream_index[stream_index];
3297 av_log(NULL, AV_LOG_INFO, "Switch %s stream from #%d to #%d\n",
3298 av_get_media_type_string(codec_type),
3302 stream_component_close(is, old_index);
3303 stream_component_open(is, stream_index);
3307 static void toggle_full_screen(VideoState *is)
3309 #if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14)
3310 /* OS X needs to reallocate the SDL overlays */
3312 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++)
3313 is->pictq.queue[i].reallocate = 1;
3315 is_full_screen = !is_full_screen;
3316 video_open(is, 1, NULL);
3319 static void toggle_audio_display(VideoState *is)
3321 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
3322 int next = is->show_mode;
3324 next = (next + 1) % SHOW_MODE_NB;
3325 } while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st));
3326 if (is->show_mode != next) {
3327 fill_rectangle(screen,
3328 is->xleft, is->ytop, is->width, is->height,
3330 is->force_refresh = 1;
3331 is->show_mode = next;
3335 static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) {
3336 double remaining_time = 0.0;
3338 while (!SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) {
3339 if (!cursor_hidden && av_gettime_relative() - cursor_last_shown > CURSOR_HIDE_DELAY) {
3343 if (remaining_time > 0.0)
3344 av_usleep((int64_t)(remaining_time * 1000000.0));
3345 remaining_time = REFRESH_RATE;
3346 if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh))
3347 video_refresh(is, &remaining_time);
3352 static void seek_chapter(VideoState *is, int incr)
3354 int64_t pos = get_master_clock(is) * AV_TIME_BASE;
3357 if (!is->ic->nb_chapters)
3360 /* find the current chapter */
3361 for (i = 0; i < is->ic->nb_chapters; i++) {
3362 AVChapter *ch = is->ic->chapters[i];
3363 if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) {
3371 if (i >= is->ic->nb_chapters)
3374 av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i);
3375 stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base,
3376 AV_TIME_BASE_Q), 0, 0);
3379 /* handle an event sent by the GUI */
3380 static void event_loop(VideoState *cur_stream)
3383 double incr, pos, frac;
3387 refresh_loop_wait_event(cur_stream, &event);
3388 switch (event.type) {
3390 if (exit_on_keydown) {
3391 do_exit(cur_stream);
3394 switch (event.key.keysym.sym) {
3397 do_exit(cur_stream);
3400 toggle_full_screen(cur_stream);
3401 cur_stream->force_refresh = 1;
3405 toggle_pause(cur_stream);
3407 case SDLK_s: // S: Step to next frame
3408 step_to_next_frame(cur_stream);
3411 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
3414 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
3417 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
3418 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
3419 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
3422 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
3426 if (cur_stream->show_mode == SHOW_MODE_VIDEO && cur_stream->vfilter_idx < nb_vfilters - 1) {
3427 if (++cur_stream->vfilter_idx >= nb_vfilters)
3428 cur_stream->vfilter_idx = 0;
3430 cur_stream->vfilter_idx = 0;
3431 toggle_audio_display(cur_stream);
3434 toggle_audio_display(cur_stream);
3438 if (cur_stream->ic->nb_chapters <= 1) {
3442 seek_chapter(cur_stream, 1);
3445 if (cur_stream->ic->nb_chapters <= 1) {
3449 seek_chapter(cur_stream, -1);
3463 if (seek_by_bytes) {
3465 if (pos < 0 && cur_stream->video_stream >= 0)
3466 pos = frame_queue_last_pos(&cur_stream->pictq);
3467 if (pos < 0 && cur_stream->audio_stream >= 0)
3468 pos = frame_queue_last_pos(&cur_stream->sampq);
3470 pos = avio_tell(cur_stream->ic->pb);
3471 if (cur_stream->ic->bit_rate)
3472 incr *= cur_stream->ic->bit_rate / 8.0;
3476 stream_seek(cur_stream, pos, incr, 1);
3478 pos = get_master_clock(cur_stream);
3480 pos = (double)cur_stream->seek_pos / AV_TIME_BASE;
3482 if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE)
3483 pos = cur_stream->ic->start_time / (double)AV_TIME_BASE;
3484 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
3491 case SDL_VIDEOEXPOSE:
3492 cur_stream->force_refresh = 1;
3494 case SDL_MOUSEBUTTONDOWN:
3495 if (exit_on_mousedown) {
3496 do_exit(cur_stream);
3499 case SDL_MOUSEMOTION:
3500 if (cursor_hidden) {
3504 cursor_last_shown = av_gettime_relative();
3505 if (event.type == SDL_MOUSEBUTTONDOWN) {
3508 if (event.motion.state != SDL_PRESSED)
3512 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
3513 uint64_t size = avio_size(cur_stream->ic->pb);
3514 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
3518 int tns, thh, tmm, tss;
3519 tns = cur_stream->ic->duration / 1000000LL;
3521 tmm = (tns % 3600) / 60;
3523 frac = x / cur_stream->width;
3526 mm = (ns % 3600) / 60;
3528 av_log(NULL, AV_LOG_INFO,
3529 "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
3530 hh, mm, ss, thh, tmm, tss);
3531 ts = frac * cur_stream->ic->duration;
3532 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
3533 ts += cur_stream->ic->start_time;
3534 stream_seek(cur_stream, ts, 0, 0);
3537 case SDL_VIDEORESIZE:
3538 screen = SDL_SetVideoMode(FFMIN(16383, event.resize.w), event.resize.h, 0,
3539 SDL_HWSURFACE|(is_full_screen?SDL_FULLSCREEN:SDL_RESIZABLE)|SDL_ASYNCBLIT|SDL_HWACCEL);
3541 av_log(NULL, AV_LOG_FATAL, "Failed to set video mode\n");
3542 do_exit(cur_stream);
3544 screen_width = cur_stream->width = screen->w;
3545 screen_height = cur_stream->height = screen->h;
3546 cur_stream->force_refresh = 1;
3550 do_exit(cur_stream);
3552 case FF_ALLOC_EVENT:
3553 alloc_picture(event.user.data1);
3561 static int opt_frame_size(void *optctx, const char *opt, const char *arg)
3563 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
3564 return opt_default(NULL, "video_size", arg);
3567 static int opt_width(void *optctx, const char *opt, const char *arg)
3569 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3573 static int opt_height(void *optctx, const char *opt, const char *arg)
3575 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3579 static int opt_format(void *optctx, const char *opt, const char *arg)
3581 file_iformat = av_find_input_format(arg);
3582 if (!file_iformat) {
3583 av_log(NULL, AV_LOG_FATAL, "Unknown input format: %s\n", arg);
3584 return AVERROR(EINVAL);
3589 static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
3591 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
3592 return opt_default(NULL, "pixel_format", arg);
3595 static int opt_sync(void *optctx, const char *opt, const char *arg)
3597 if (!strcmp(arg, "audio"))
3598 av_sync_type = AV_SYNC_AUDIO_MASTER;
3599 else if (!strcmp(arg, "video"))
3600 av_sync_type = AV_SYNC_VIDEO_MASTER;
3601 else if (!strcmp(arg, "ext"))
3602 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
3604 av_log(NULL, AV_LOG_ERROR, "Unknown value for %s: %s\n", opt, arg);
3610 static int opt_seek(void *optctx, const char *opt, const char *arg)
3612 start_time = parse_time_or_die(opt, arg, 1);
3616 static int opt_duration(void *optctx, const char *opt, const char *arg)
3618 duration = parse_time_or_die(opt, arg, 1);
3622 static int opt_show_mode(void *optctx, const char *opt, const char *arg)
3624 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
3625 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
3626 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
3627 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3631 static void opt_input_file(void *optctx, const char *filename)
3633 if (input_filename) {
3634 av_log(NULL, AV_LOG_FATAL,
3635 "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3636 filename, input_filename);
3639 if (!strcmp(filename, "-"))
3641 input_filename = filename;
3644 static int opt_codec(void *optctx, const char *opt, const char *arg)
3646 const char *spec = strchr(opt, ':');
3648 av_log(NULL, AV_LOG_ERROR,
3649 "No media specifier was specified in '%s' in option '%s'\n",
3651 return AVERROR(EINVAL);
3655 case 'a' : audio_codec_name = arg; break;
3656 case 's' : subtitle_codec_name = arg; break;
3657 case 'v' : video_codec_name = arg; break;
3659 av_log(NULL, AV_LOG_ERROR,
3660 "Invalid media specifier '%s' in option '%s'\n", spec, opt);
3661 return AVERROR(EINVAL);
3668 static const OptionDef options[] = {
3669 #include "cmdutils_common_opts.h"
3670 { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
3671 { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
3672 { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3673 { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
3674 { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
3675 { "vn", OPT_BOOL, { &video_disable }, "disable video" },
3676 { "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" },
3677 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" },
3678 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" },
3679 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" },
3680 { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
3681 { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3682 { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3683 { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
3684 { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
3685 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
3686 { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
3687 { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
3688 { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
3689 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3690 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" },
3691 { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3692 { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" },
3693 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
3694 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
3695 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
3696 { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
3697 { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
3698 { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
3700 { "vf", OPT_EXPERT | HAS_ARG, { .func_arg = opt_add_vfilter }, "set video filters", "filter_graph" },
3701 { "af", OPT_STRING | HAS_ARG, { &afilters }, "set audio filters", "filter_graph" },
3703 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
3704 { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3705 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" },
3706 { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"},
3707 { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" },
3708 { "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &audio_codec_name }, "force audio decoder", "decoder_name" },
3709 { "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" },
3710 { "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &video_codec_name }, "force video decoder", "decoder_name" },
3711 { "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" },
3715 static void show_usage(void)
3717 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3718 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3719 av_log(NULL, AV_LOG_INFO, "\n");
3722 void show_help_default(const char *opt, const char *arg)
3724 av_log_set_callback(log_callback_help);
3726 show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
3727 show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
3729 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3730 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3731 #if !CONFIG_AVFILTER
3732 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3734 show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
3736 printf("\nWhile playing:\n"