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/eval.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 "libavutil/bprint.h"
44 #include "libavformat/avformat.h"
45 #include "libavdevice/avdevice.h"
46 #include "libswscale/swscale.h"
47 #include "libavutil/opt.h"
48 #include "libavcodec/avfft.h"
49 #include "libswresample/swresample.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)
69 #define EXTERNAL_CLOCK_MIN_FRAMES 2
70 #define EXTERNAL_CLOCK_MAX_FRAMES 10
72 /* Minimum SDL audio buffer size, in samples. */
73 #define SDL_AUDIO_MIN_BUFFER_SIZE 512
74 /* Calculate actual buffer size keeping in mind not cause too frequent audio callbacks */
75 #define SDL_AUDIO_MAX_CALLBACKS_PER_SEC 30
77 /* Step size for volume control in dB */
78 #define SDL_VOLUME_STEP (0.75)
80 /* no AV sync correction is done if below the minimum AV sync threshold */
81 #define AV_SYNC_THRESHOLD_MIN 0.04
82 /* AV sync correction is done if above the maximum AV sync threshold */
83 #define AV_SYNC_THRESHOLD_MAX 0.1
84 /* If a frame duration is longer than this, it will not be duplicated to compensate AV sync */
85 #define AV_SYNC_FRAMEDUP_THRESHOLD 0.1
86 /* no AV correction is done if too big error */
87 #define AV_NOSYNC_THRESHOLD 10.0
89 /* maximum audio speed change to get correct sync */
90 #define SAMPLE_CORRECTION_PERCENT_MAX 10
92 /* external clock speed adjustment constants for realtime sources based on buffer fullness */
93 #define EXTERNAL_CLOCK_SPEED_MIN 0.900
94 #define EXTERNAL_CLOCK_SPEED_MAX 1.010
95 #define EXTERNAL_CLOCK_SPEED_STEP 0.001
97 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
98 #define AUDIO_DIFF_AVG_NB 20
100 /* polls for possible required screen refresh at least this often, should be less than 1/fps */
101 #define REFRESH_RATE 0.01
103 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
104 /* TODO: We assume that a decoded and resampled frame fits into this buffer */
105 #define SAMPLE_ARRAY_SIZE (8 * 65536)
107 #define CURSOR_HIDE_DELAY 1000000
109 #define USE_ONEPASS_SUBTITLE_RENDER 1
111 static unsigned sws_flags = SWS_BICUBIC;
113 typedef struct MyAVPacketList {
115 struct MyAVPacketList *next;
119 typedef struct PacketQueue {
120 MyAVPacketList *first_pkt, *last_pkt;
130 #define VIDEO_PICTURE_QUEUE_SIZE 3
131 #define SUBPICTURE_QUEUE_SIZE 16
132 #define SAMPLE_QUEUE_SIZE 9
133 #define FRAME_QUEUE_SIZE FFMAX(SAMPLE_QUEUE_SIZE, FFMAX(VIDEO_PICTURE_QUEUE_SIZE, SUBPICTURE_QUEUE_SIZE))
135 typedef struct AudioParams {
138 int64_t channel_layout;
139 enum AVSampleFormat fmt;
144 typedef struct Clock {
145 double pts; /* clock base */
146 double pts_drift; /* clock base minus time at which we updated the clock */
149 int serial; /* clock is based on a packet with this serial */
151 int *queue_serial; /* pointer to the current packet queue serial, used for obsolete clock detection */
154 /* Common struct for handling all types of decoded data and allocated render buffers. */
155 typedef struct Frame {
159 double pts; /* presentation timestamp for the frame */
160 double duration; /* estimated duration of the frame */
161 int64_t pos; /* byte position of the frame in the input file */
170 typedef struct FrameQueue {
171 Frame queue[FRAME_QUEUE_SIZE];
184 AV_SYNC_AUDIO_MASTER, /* default choice */
185 AV_SYNC_VIDEO_MASTER,
186 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
189 typedef struct Decoder {
192 AVCodecContext *avctx;
196 SDL_cond *empty_queue_cond;
198 AVRational start_pts_tb;
200 AVRational next_pts_tb;
201 SDL_Thread *decoder_tid;
204 typedef struct VideoState {
205 SDL_Thread *read_tid;
206 AVInputFormat *iformat;
211 int queue_attachments_req;
216 int read_pause_return;
237 int audio_clock_serial;
238 double audio_diff_cum; /* used for AV difference average computation */
239 double audio_diff_avg_coef;
240 double audio_diff_threshold;
241 int audio_diff_avg_count;
244 int audio_hw_buf_size;
247 unsigned int audio_buf_size; /* in bytes */
248 unsigned int audio_buf1_size;
249 int audio_buf_index; /* in bytes */
250 int audio_write_buf_size;
253 struct AudioParams audio_src;
255 struct AudioParams audio_filter_src;
257 struct AudioParams audio_tgt;
258 struct SwrContext *swr_ctx;
259 int frame_drops_early;
260 int frame_drops_late;
263 SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
265 int16_t sample_array[SAMPLE_ARRAY_SIZE];
266 int sample_array_index;
270 FFTSample *rdft_data;
272 double last_vis_time;
273 SDL_Texture *vis_texture;
274 SDL_Texture *sub_texture;
275 SDL_Texture *vid_texture;
278 AVStream *subtitle_st;
279 PacketQueue subtitleq;
282 double frame_last_returned_time;
283 double frame_last_filter_delay;
287 double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity
288 struct SwsContext *img_convert_ctx;
289 struct SwsContext *sub_convert_ctx;
293 int width, height, xleft, ytop;
298 AVFilterContext *in_video_filter; // the first filter in the video chain
299 AVFilterContext *out_video_filter; // the last filter in the video chain
300 AVFilterContext *in_audio_filter; // the first filter in the audio chain
301 AVFilterContext *out_audio_filter; // the last filter in the audio chain
302 AVFilterGraph *agraph; // audio filter graph
305 int last_video_stream, last_audio_stream, last_subtitle_stream;
307 SDL_cond *continue_read_thread;
310 /* options specified by the user */
311 static AVInputFormat *file_iformat;
312 static const char *input_filename;
313 static const char *window_title;
314 static int default_width = 640;
315 static int default_height = 480;
316 static int screen_width = 0;
317 static int screen_height = 0;
318 static int screen_left = SDL_WINDOWPOS_CENTERED;
319 static int screen_top = SDL_WINDOWPOS_CENTERED;
320 static int audio_disable;
321 static int video_disable;
322 static int subtitle_disable;
323 static const char* wanted_stream_spec[AVMEDIA_TYPE_NB] = {0};
324 static int seek_by_bytes = -1;
325 static float seek_interval = 10;
326 static int display_disable;
327 static int borderless;
328 static int alwaysontop;
329 static int startup_volume = 100;
330 static int show_status = -1;
331 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
332 static int64_t start_time = AV_NOPTS_VALUE;
333 static int64_t duration = AV_NOPTS_VALUE;
335 static int genpts = 0;
336 static int lowres = 0;
337 static int decoder_reorder_pts = -1;
339 static int exit_on_keydown;
340 static int exit_on_mousedown;
342 static int framedrop = -1;
343 static int infinite_buffer = -1;
344 static enum ShowMode show_mode = SHOW_MODE_NONE;
345 static const char *audio_codec_name;
346 static const char *subtitle_codec_name;
347 static const char *video_codec_name;
348 double rdftspeed = 0.02;
349 static int64_t cursor_last_shown;
350 static int cursor_hidden = 0;
352 static const char **vfilters_list = NULL;
353 static int nb_vfilters = 0;
354 static char *afilters = NULL;
356 static int autorotate = 1;
357 static int find_stream_info = 1;
358 static int filter_nbthreads = 0;
360 /* current context */
361 static int is_full_screen;
362 static int64_t audio_callback_time;
364 static AVPacket flush_pkt;
366 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
368 static SDL_Window *window;
369 static SDL_Renderer *renderer;
370 static SDL_RendererInfo renderer_info = {0};
371 static SDL_AudioDeviceID audio_dev;
373 static const struct TextureFormatEntry {
374 enum AVPixelFormat format;
376 } sdl_texture_format_map[] = {
377 { AV_PIX_FMT_RGB8, SDL_PIXELFORMAT_RGB332 },
378 { AV_PIX_FMT_RGB444, SDL_PIXELFORMAT_RGB444 },
379 { AV_PIX_FMT_RGB555, SDL_PIXELFORMAT_RGB555 },
380 { AV_PIX_FMT_BGR555, SDL_PIXELFORMAT_BGR555 },
381 { AV_PIX_FMT_RGB565, SDL_PIXELFORMAT_RGB565 },
382 { AV_PIX_FMT_BGR565, SDL_PIXELFORMAT_BGR565 },
383 { AV_PIX_FMT_RGB24, SDL_PIXELFORMAT_RGB24 },
384 { AV_PIX_FMT_BGR24, SDL_PIXELFORMAT_BGR24 },
385 { AV_PIX_FMT_0RGB32, SDL_PIXELFORMAT_RGB888 },
386 { AV_PIX_FMT_0BGR32, SDL_PIXELFORMAT_BGR888 },
387 { AV_PIX_FMT_NE(RGB0, 0BGR), SDL_PIXELFORMAT_RGBX8888 },
388 { AV_PIX_FMT_NE(BGR0, 0RGB), SDL_PIXELFORMAT_BGRX8888 },
389 { AV_PIX_FMT_RGB32, SDL_PIXELFORMAT_ARGB8888 },
390 { AV_PIX_FMT_RGB32_1, SDL_PIXELFORMAT_RGBA8888 },
391 { AV_PIX_FMT_BGR32, SDL_PIXELFORMAT_ABGR8888 },
392 { AV_PIX_FMT_BGR32_1, SDL_PIXELFORMAT_BGRA8888 },
393 { AV_PIX_FMT_YUV420P, SDL_PIXELFORMAT_IYUV },
394 { AV_PIX_FMT_YUYV422, SDL_PIXELFORMAT_YUY2 },
395 { AV_PIX_FMT_UYVY422, SDL_PIXELFORMAT_UYVY },
396 { AV_PIX_FMT_NONE, SDL_PIXELFORMAT_UNKNOWN },
400 static int opt_add_vfilter(void *optctx, const char *opt, const char *arg)
402 GROW_ARRAY(vfilters_list, nb_vfilters);
403 vfilters_list[nb_vfilters - 1] = arg;
409 int cmp_audio_fmts(enum AVSampleFormat fmt1, int64_t channel_count1,
410 enum AVSampleFormat fmt2, int64_t channel_count2)
412 /* If channel count == 1, planar and non-planar formats are the same */
413 if (channel_count1 == 1 && channel_count2 == 1)
414 return av_get_packed_sample_fmt(fmt1) != av_get_packed_sample_fmt(fmt2);
416 return channel_count1 != channel_count2 || fmt1 != fmt2;
420 int64_t get_valid_channel_layout(int64_t channel_layout, int channels)
422 if (channel_layout && av_get_channel_layout_nb_channels(channel_layout) == channels)
423 return channel_layout;
428 static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
430 MyAVPacketList *pkt1;
432 if (q->abort_request)
435 pkt1 = av_malloc(sizeof(MyAVPacketList));
440 if (pkt == &flush_pkt)
442 pkt1->serial = q->serial;
447 q->last_pkt->next = pkt1;
450 q->size += pkt1->pkt.size + sizeof(*pkt1);
451 q->duration += pkt1->pkt.duration;
452 /* XXX: should duplicate packet data in DV case */
453 SDL_CondSignal(q->cond);
457 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
461 SDL_LockMutex(q->mutex);
462 ret = packet_queue_put_private(q, pkt);
463 SDL_UnlockMutex(q->mutex);
465 if (pkt != &flush_pkt && ret < 0)
466 av_packet_unref(pkt);
471 static int packet_queue_put_nullpacket(PacketQueue *q, int stream_index)
473 AVPacket pkt1, *pkt = &pkt1;
477 pkt->stream_index = stream_index;
478 return packet_queue_put(q, pkt);
481 /* packet queue handling */
482 static int packet_queue_init(PacketQueue *q)
484 memset(q, 0, sizeof(PacketQueue));
485 q->mutex = SDL_CreateMutex();
487 av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());
488 return AVERROR(ENOMEM);
490 q->cond = SDL_CreateCond();
492 av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());
493 return AVERROR(ENOMEM);
495 q->abort_request = 1;
499 static void packet_queue_flush(PacketQueue *q)
501 MyAVPacketList *pkt, *pkt1;
503 SDL_LockMutex(q->mutex);
504 for (pkt = q->first_pkt; pkt; pkt = pkt1) {
506 av_packet_unref(&pkt->pkt);
514 SDL_UnlockMutex(q->mutex);
517 static void packet_queue_destroy(PacketQueue *q)
519 packet_queue_flush(q);
520 SDL_DestroyMutex(q->mutex);
521 SDL_DestroyCond(q->cond);
524 static void packet_queue_abort(PacketQueue *q)
526 SDL_LockMutex(q->mutex);
528 q->abort_request = 1;
530 SDL_CondSignal(q->cond);
532 SDL_UnlockMutex(q->mutex);
535 static void packet_queue_start(PacketQueue *q)
537 SDL_LockMutex(q->mutex);
538 q->abort_request = 0;
539 packet_queue_put_private(q, &flush_pkt);
540 SDL_UnlockMutex(q->mutex);
543 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
544 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial)
546 MyAVPacketList *pkt1;
549 SDL_LockMutex(q->mutex);
552 if (q->abort_request) {
559 q->first_pkt = pkt1->next;
563 q->size -= pkt1->pkt.size + sizeof(*pkt1);
564 q->duration -= pkt1->pkt.duration;
567 *serial = pkt1->serial;
575 SDL_CondWait(q->cond, q->mutex);
578 SDL_UnlockMutex(q->mutex);
582 static void decoder_init(Decoder *d, AVCodecContext *avctx, PacketQueue *queue, SDL_cond *empty_queue_cond) {
583 memset(d, 0, sizeof(Decoder));
586 d->empty_queue_cond = empty_queue_cond;
587 d->start_pts = AV_NOPTS_VALUE;
591 static int decoder_decode_frame(Decoder *d, AVFrame *frame, AVSubtitle *sub) {
592 int ret = AVERROR(EAGAIN);
597 if (d->queue->serial == d->pkt_serial) {
599 if (d->queue->abort_request)
602 switch (d->avctx->codec_type) {
603 case AVMEDIA_TYPE_VIDEO:
604 ret = avcodec_receive_frame(d->avctx, frame);
606 if (decoder_reorder_pts == -1) {
607 frame->pts = frame->best_effort_timestamp;
608 } else if (!decoder_reorder_pts) {
609 frame->pts = frame->pkt_dts;
613 case AVMEDIA_TYPE_AUDIO:
614 ret = avcodec_receive_frame(d->avctx, frame);
616 AVRational tb = (AVRational){1, frame->sample_rate};
617 if (frame->pts != AV_NOPTS_VALUE)
618 frame->pts = av_rescale_q(frame->pts, d->avctx->pkt_timebase, tb);
619 else if (d->next_pts != AV_NOPTS_VALUE)
620 frame->pts = av_rescale_q(d->next_pts, d->next_pts_tb, tb);
621 if (frame->pts != AV_NOPTS_VALUE) {
622 d->next_pts = frame->pts + frame->nb_samples;
628 if (ret == AVERROR_EOF) {
629 d->finished = d->pkt_serial;
630 avcodec_flush_buffers(d->avctx);
635 } while (ret != AVERROR(EAGAIN));
639 if (d->queue->nb_packets == 0)
640 SDL_CondSignal(d->empty_queue_cond);
641 if (d->packet_pending) {
642 av_packet_move_ref(&pkt, &d->pkt);
643 d->packet_pending = 0;
645 if (packet_queue_get(d->queue, &pkt, 1, &d->pkt_serial) < 0)
648 if (d->queue->serial == d->pkt_serial)
650 av_packet_unref(&pkt);
653 if (pkt.data == flush_pkt.data) {
654 avcodec_flush_buffers(d->avctx);
656 d->next_pts = d->start_pts;
657 d->next_pts_tb = d->start_pts_tb;
659 if (d->avctx->codec_type == AVMEDIA_TYPE_SUBTITLE) {
661 ret = avcodec_decode_subtitle2(d->avctx, sub, &got_frame, &pkt);
663 ret = AVERROR(EAGAIN);
665 if (got_frame && !pkt.data) {
666 d->packet_pending = 1;
667 av_packet_move_ref(&d->pkt, &pkt);
669 ret = got_frame ? 0 : (pkt.data ? AVERROR(EAGAIN) : AVERROR_EOF);
672 if (avcodec_send_packet(d->avctx, &pkt) == AVERROR(EAGAIN)) {
673 av_log(d->avctx, AV_LOG_ERROR, "Receive_frame and send_packet both returned EAGAIN, which is an API violation.\n");
674 d->packet_pending = 1;
675 av_packet_move_ref(&d->pkt, &pkt);
678 av_packet_unref(&pkt);
683 static void decoder_destroy(Decoder *d) {
684 av_packet_unref(&d->pkt);
685 avcodec_free_context(&d->avctx);
688 static void frame_queue_unref_item(Frame *vp)
690 av_frame_unref(vp->frame);
691 avsubtitle_free(&vp->sub);
694 static int frame_queue_init(FrameQueue *f, PacketQueue *pktq, int max_size, int keep_last)
697 memset(f, 0, sizeof(FrameQueue));
698 if (!(f->mutex = SDL_CreateMutex())) {
699 av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());
700 return AVERROR(ENOMEM);
702 if (!(f->cond = SDL_CreateCond())) {
703 av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());
704 return AVERROR(ENOMEM);
707 f->max_size = FFMIN(max_size, FRAME_QUEUE_SIZE);
708 f->keep_last = !!keep_last;
709 for (i = 0; i < f->max_size; i++)
710 if (!(f->queue[i].frame = av_frame_alloc()))
711 return AVERROR(ENOMEM);
715 static void frame_queue_destory(FrameQueue *f)
718 for (i = 0; i < f->max_size; i++) {
719 Frame *vp = &f->queue[i];
720 frame_queue_unref_item(vp);
721 av_frame_free(&vp->frame);
723 SDL_DestroyMutex(f->mutex);
724 SDL_DestroyCond(f->cond);
727 static void frame_queue_signal(FrameQueue *f)
729 SDL_LockMutex(f->mutex);
730 SDL_CondSignal(f->cond);
731 SDL_UnlockMutex(f->mutex);
734 static Frame *frame_queue_peek(FrameQueue *f)
736 return &f->queue[(f->rindex + f->rindex_shown) % f->max_size];
739 static Frame *frame_queue_peek_next(FrameQueue *f)
741 return &f->queue[(f->rindex + f->rindex_shown + 1) % f->max_size];
744 static Frame *frame_queue_peek_last(FrameQueue *f)
746 return &f->queue[f->rindex];
749 static Frame *frame_queue_peek_writable(FrameQueue *f)
751 /* wait until we have space to put a new frame */
752 SDL_LockMutex(f->mutex);
753 while (f->size >= f->max_size &&
754 !f->pktq->abort_request) {
755 SDL_CondWait(f->cond, f->mutex);
757 SDL_UnlockMutex(f->mutex);
759 if (f->pktq->abort_request)
762 return &f->queue[f->windex];
765 static Frame *frame_queue_peek_readable(FrameQueue *f)
767 /* wait until we have a readable a new frame */
768 SDL_LockMutex(f->mutex);
769 while (f->size - f->rindex_shown <= 0 &&
770 !f->pktq->abort_request) {
771 SDL_CondWait(f->cond, f->mutex);
773 SDL_UnlockMutex(f->mutex);
775 if (f->pktq->abort_request)
778 return &f->queue[(f->rindex + f->rindex_shown) % f->max_size];
781 static void frame_queue_push(FrameQueue *f)
783 if (++f->windex == f->max_size)
785 SDL_LockMutex(f->mutex);
787 SDL_CondSignal(f->cond);
788 SDL_UnlockMutex(f->mutex);
791 static void frame_queue_next(FrameQueue *f)
793 if (f->keep_last && !f->rindex_shown) {
797 frame_queue_unref_item(&f->queue[f->rindex]);
798 if (++f->rindex == f->max_size)
800 SDL_LockMutex(f->mutex);
802 SDL_CondSignal(f->cond);
803 SDL_UnlockMutex(f->mutex);
806 /* return the number of undisplayed frames in the queue */
807 static int frame_queue_nb_remaining(FrameQueue *f)
809 return f->size - f->rindex_shown;
812 /* return last shown position */
813 static int64_t frame_queue_last_pos(FrameQueue *f)
815 Frame *fp = &f->queue[f->rindex];
816 if (f->rindex_shown && fp->serial == f->pktq->serial)
822 static void decoder_abort(Decoder *d, FrameQueue *fq)
824 packet_queue_abort(d->queue);
825 frame_queue_signal(fq);
826 SDL_WaitThread(d->decoder_tid, NULL);
827 d->decoder_tid = NULL;
828 packet_queue_flush(d->queue);
831 static inline void fill_rectangle(int x, int y, int w, int h)
839 SDL_RenderFillRect(renderer, &rect);
842 static int realloc_texture(SDL_Texture **texture, Uint32 new_format, int new_width, int new_height, SDL_BlendMode blendmode, int init_texture)
846 if (!*texture || SDL_QueryTexture(*texture, &format, &access, &w, &h) < 0 || new_width != w || new_height != h || new_format != format) {
850 SDL_DestroyTexture(*texture);
851 if (!(*texture = SDL_CreateTexture(renderer, new_format, SDL_TEXTUREACCESS_STREAMING, new_width, new_height)))
853 if (SDL_SetTextureBlendMode(*texture, blendmode) < 0)
856 if (SDL_LockTexture(*texture, NULL, &pixels, &pitch) < 0)
858 memset(pixels, 0, pitch * new_height);
859 SDL_UnlockTexture(*texture);
861 av_log(NULL, AV_LOG_VERBOSE, "Created %dx%d texture with %s.\n", new_width, new_height, SDL_GetPixelFormatName(new_format));
866 static void calculate_display_rect(SDL_Rect *rect,
867 int scr_xleft, int scr_ytop, int scr_width, int scr_height,
868 int pic_width, int pic_height, AVRational pic_sar)
870 AVRational aspect_ratio = pic_sar;
871 int64_t width, height, x, y;
873 if (av_cmp_q(aspect_ratio, av_make_q(0, 1)) <= 0)
874 aspect_ratio = av_make_q(1, 1);
876 aspect_ratio = av_mul_q(aspect_ratio, av_make_q(pic_width, pic_height));
878 /* XXX: we suppose the screen has a 1.0 pixel ratio */
880 width = av_rescale(height, aspect_ratio.num, aspect_ratio.den) & ~1;
881 if (width > scr_width) {
883 height = av_rescale(width, aspect_ratio.den, aspect_ratio.num) & ~1;
885 x = (scr_width - width) / 2;
886 y = (scr_height - height) / 2;
887 rect->x = scr_xleft + x;
888 rect->y = scr_ytop + y;
889 rect->w = FFMAX((int)width, 1);
890 rect->h = FFMAX((int)height, 1);
893 static void get_sdl_pix_fmt_and_blendmode(int format, Uint32 *sdl_pix_fmt, SDL_BlendMode *sdl_blendmode)
896 *sdl_blendmode = SDL_BLENDMODE_NONE;
897 *sdl_pix_fmt = SDL_PIXELFORMAT_UNKNOWN;
898 if (format == AV_PIX_FMT_RGB32 ||
899 format == AV_PIX_FMT_RGB32_1 ||
900 format == AV_PIX_FMT_BGR32 ||
901 format == AV_PIX_FMT_BGR32_1)
902 *sdl_blendmode = SDL_BLENDMODE_BLEND;
903 for (i = 0; i < FF_ARRAY_ELEMS(sdl_texture_format_map) - 1; i++) {
904 if (format == sdl_texture_format_map[i].format) {
905 *sdl_pix_fmt = sdl_texture_format_map[i].texture_fmt;
911 static int upload_texture(SDL_Texture **tex, AVFrame *frame, struct SwsContext **img_convert_ctx) {
914 SDL_BlendMode sdl_blendmode;
915 get_sdl_pix_fmt_and_blendmode(frame->format, &sdl_pix_fmt, &sdl_blendmode);
916 if (realloc_texture(tex, sdl_pix_fmt == SDL_PIXELFORMAT_UNKNOWN ? SDL_PIXELFORMAT_ARGB8888 : sdl_pix_fmt, frame->width, frame->height, sdl_blendmode, 0) < 0)
918 switch (sdl_pix_fmt) {
919 case SDL_PIXELFORMAT_UNKNOWN:
920 /* This should only happen if we are not using avfilter... */
921 *img_convert_ctx = sws_getCachedContext(*img_convert_ctx,
922 frame->width, frame->height, frame->format, frame->width, frame->height,
923 AV_PIX_FMT_BGRA, sws_flags, NULL, NULL, NULL);
924 if (*img_convert_ctx != NULL) {
927 if (!SDL_LockTexture(*tex, NULL, (void **)pixels, pitch)) {
928 sws_scale(*img_convert_ctx, (const uint8_t * const *)frame->data, frame->linesize,
929 0, frame->height, pixels, pitch);
930 SDL_UnlockTexture(*tex);
933 av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n");
937 case SDL_PIXELFORMAT_IYUV:
938 if (frame->linesize[0] > 0 && frame->linesize[1] > 0 && frame->linesize[2] > 0) {
939 ret = SDL_UpdateYUVTexture(*tex, NULL, frame->data[0], frame->linesize[0],
940 frame->data[1], frame->linesize[1],
941 frame->data[2], frame->linesize[2]);
942 } else if (frame->linesize[0] < 0 && frame->linesize[1] < 0 && frame->linesize[2] < 0) {
943 ret = SDL_UpdateYUVTexture(*tex, NULL, frame->data[0] + frame->linesize[0] * (frame->height - 1), -frame->linesize[0],
944 frame->data[1] + frame->linesize[1] * (AV_CEIL_RSHIFT(frame->height, 1) - 1), -frame->linesize[1],
945 frame->data[2] + frame->linesize[2] * (AV_CEIL_RSHIFT(frame->height, 1) - 1), -frame->linesize[2]);
947 av_log(NULL, AV_LOG_ERROR, "Mixed negative and positive linesizes are not supported.\n");
952 if (frame->linesize[0] < 0) {
953 ret = SDL_UpdateTexture(*tex, NULL, frame->data[0] + frame->linesize[0] * (frame->height - 1), -frame->linesize[0]);
955 ret = SDL_UpdateTexture(*tex, NULL, frame->data[0], frame->linesize[0]);
962 static void set_sdl_yuv_conversion_mode(AVFrame *frame)
964 #if SDL_VERSION_ATLEAST(2,0,8)
965 SDL_YUV_CONVERSION_MODE mode = SDL_YUV_CONVERSION_AUTOMATIC;
966 if (frame && (frame->format == AV_PIX_FMT_YUV420P || frame->format == AV_PIX_FMT_YUYV422 || frame->format == AV_PIX_FMT_UYVY422)) {
967 if (frame->color_range == AVCOL_RANGE_JPEG)
968 mode = SDL_YUV_CONVERSION_JPEG;
969 else if (frame->colorspace == AVCOL_SPC_BT709)
970 mode = SDL_YUV_CONVERSION_BT709;
971 else if (frame->colorspace == AVCOL_SPC_BT470BG || frame->colorspace == AVCOL_SPC_SMPTE170M || frame->colorspace == AVCOL_SPC_SMPTE240M)
972 mode = SDL_YUV_CONVERSION_BT601;
974 SDL_SetYUVConversionMode(mode);
978 static void video_image_display(VideoState *is)
984 vp = frame_queue_peek_last(&is->pictq);
985 if (is->subtitle_st) {
986 if (frame_queue_nb_remaining(&is->subpq) > 0) {
987 sp = frame_queue_peek(&is->subpq);
989 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
994 if (!sp->width || !sp->height) {
995 sp->width = vp->width;
996 sp->height = vp->height;
998 if (realloc_texture(&is->sub_texture, SDL_PIXELFORMAT_ARGB8888, sp->width, sp->height, SDL_BLENDMODE_BLEND, 1) < 0)
1001 for (i = 0; i < sp->sub.num_rects; i++) {
1002 AVSubtitleRect *sub_rect = sp->sub.rects[i];
1004 sub_rect->x = av_clip(sub_rect->x, 0, sp->width );
1005 sub_rect->y = av_clip(sub_rect->y, 0, sp->height);
1006 sub_rect->w = av_clip(sub_rect->w, 0, sp->width - sub_rect->x);
1007 sub_rect->h = av_clip(sub_rect->h, 0, sp->height - sub_rect->y);
1009 is->sub_convert_ctx = sws_getCachedContext(is->sub_convert_ctx,
1010 sub_rect->w, sub_rect->h, AV_PIX_FMT_PAL8,
1011 sub_rect->w, sub_rect->h, AV_PIX_FMT_BGRA,
1012 0, NULL, NULL, NULL);
1013 if (!is->sub_convert_ctx) {
1014 av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n");
1017 if (!SDL_LockTexture(is->sub_texture, (SDL_Rect *)sub_rect, (void **)pixels, pitch)) {
1018 sws_scale(is->sub_convert_ctx, (const uint8_t * const *)sub_rect->data, sub_rect->linesize,
1019 0, sub_rect->h, pixels, pitch);
1020 SDL_UnlockTexture(is->sub_texture);
1030 calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp->width, vp->height, vp->sar);
1032 if (!vp->uploaded) {
1033 if (upload_texture(&is->vid_texture, vp->frame, &is->img_convert_ctx) < 0)
1036 vp->flip_v = vp->frame->linesize[0] < 0;
1039 set_sdl_yuv_conversion_mode(vp->frame);
1040 SDL_RenderCopyEx(renderer, is->vid_texture, NULL, &rect, 0, NULL, vp->flip_v ? SDL_FLIP_VERTICAL : 0);
1041 set_sdl_yuv_conversion_mode(NULL);
1043 #if USE_ONEPASS_SUBTITLE_RENDER
1044 SDL_RenderCopy(renderer, is->sub_texture, NULL, &rect);
1047 double xratio = (double)rect.w / (double)sp->width;
1048 double yratio = (double)rect.h / (double)sp->height;
1049 for (i = 0; i < sp->sub.num_rects; i++) {
1050 SDL_Rect *sub_rect = (SDL_Rect*)sp->sub.rects[i];
1051 SDL_Rect target = {.x = rect.x + sub_rect->x * xratio,
1052 .y = rect.y + sub_rect->y * yratio,
1053 .w = sub_rect->w * xratio,
1054 .h = sub_rect->h * yratio};
1055 SDL_RenderCopy(renderer, is->sub_texture, sub_rect, &target);
1061 static inline int compute_mod(int a, int b)
1063 return a < 0 ? a%b + b : a%b;
1066 static void video_audio_display(VideoState *s)
1068 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
1069 int ch, channels, h, h2;
1071 int rdft_bits, nb_freq;
1073 for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
1075 nb_freq = 1 << (rdft_bits - 1);
1077 /* compute display index : center on currently output samples */
1078 channels = s->audio_tgt.channels;
1079 nb_display_channels = channels;
1081 int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
1083 delay = s->audio_write_buf_size;
1086 /* to be more precise, we take into account the time spent since
1087 the last buffer computation */
1088 if (audio_callback_time) {
1089 time_diff = av_gettime_relative() - audio_callback_time;
1090 delay -= (time_diff * s->audio_tgt.freq) / 1000000;
1093 delay += 2 * data_used;
1094 if (delay < data_used)
1097 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
1098 if (s->show_mode == SHOW_MODE_WAVES) {
1100 for (i = 0; i < 1000; i += channels) {
1101 int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
1102 int a = s->sample_array[idx];
1103 int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
1104 int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
1105 int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
1107 if (h < score && (b ^ c) < 0) {
1114 s->last_i_start = i_start;
1116 i_start = s->last_i_start;
1119 if (s->show_mode == SHOW_MODE_WAVES) {
1120 SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
1122 /* total height for one channel */
1123 h = s->height / nb_display_channels;
1124 /* graph height / 2 */
1126 for (ch = 0; ch < nb_display_channels; ch++) {
1128 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
1129 for (x = 0; x < s->width; x++) {
1130 y = (s->sample_array[i] * h2) >> 15;
1137 fill_rectangle(s->xleft + x, ys, 1, y);
1139 if (i >= SAMPLE_ARRAY_SIZE)
1140 i -= SAMPLE_ARRAY_SIZE;
1144 SDL_SetRenderDrawColor(renderer, 0, 0, 255, 255);
1146 for (ch = 1; ch < nb_display_channels; ch++) {
1147 y = s->ytop + ch * h;
1148 fill_rectangle(s->xleft, y, s->width, 1);
1151 if (realloc_texture(&s->vis_texture, SDL_PIXELFORMAT_ARGB8888, s->width, s->height, SDL_BLENDMODE_NONE, 1) < 0)
1154 nb_display_channels= FFMIN(nb_display_channels, 2);
1155 if (rdft_bits != s->rdft_bits) {
1156 av_rdft_end(s->rdft);
1157 av_free(s->rdft_data);
1158 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
1159 s->rdft_bits = rdft_bits;
1160 s->rdft_data = av_malloc_array(nb_freq, 4 *sizeof(*s->rdft_data));
1162 if (!s->rdft || !s->rdft_data){
1163 av_log(NULL, AV_LOG_ERROR, "Failed to allocate buffers for RDFT, switching to waves display\n");
1164 s->show_mode = SHOW_MODE_WAVES;
1167 SDL_Rect rect = {.x = s->xpos, .y = 0, .w = 1, .h = s->height};
1170 for (ch = 0; ch < nb_display_channels; ch++) {
1171 data[ch] = s->rdft_data + 2 * nb_freq * ch;
1173 for (x = 0; x < 2 * nb_freq; x++) {
1174 double w = (x-nb_freq) * (1.0 / nb_freq);
1175 data[ch][x] = s->sample_array[i] * (1.0 - w * w);
1177 if (i >= SAMPLE_ARRAY_SIZE)
1178 i -= SAMPLE_ARRAY_SIZE;
1180 av_rdft_calc(s->rdft, data[ch]);
1182 /* Least efficient way to do this, we should of course
1183 * directly access it but it is more than fast enough. */
1184 if (!SDL_LockTexture(s->vis_texture, &rect, (void **)&pixels, &pitch)) {
1186 pixels += pitch * s->height;
1187 for (y = 0; y < s->height; y++) {
1188 double w = 1 / sqrt(nb_freq);
1189 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]));
1190 int b = (nb_display_channels == 2 ) ? sqrt(w * hypot(data[1][2 * y + 0], data[1][2 * y + 1]))
1195 *pixels = (a << 16) + (b << 8) + ((a+b) >> 1);
1197 SDL_UnlockTexture(s->vis_texture);
1199 SDL_RenderCopy(renderer, s->vis_texture, NULL, NULL);
1203 if (s->xpos >= s->width)
1208 static void stream_component_close(VideoState *is, int stream_index)
1210 AVFormatContext *ic = is->ic;
1211 AVCodecParameters *codecpar;
1213 if (stream_index < 0 || stream_index >= ic->nb_streams)
1215 codecpar = ic->streams[stream_index]->codecpar;
1217 switch (codecpar->codec_type) {
1218 case AVMEDIA_TYPE_AUDIO:
1219 decoder_abort(&is->auddec, &is->sampq);
1220 SDL_CloseAudioDevice(audio_dev);
1221 decoder_destroy(&is->auddec);
1222 swr_free(&is->swr_ctx);
1223 av_freep(&is->audio_buf1);
1224 is->audio_buf1_size = 0;
1225 is->audio_buf = NULL;
1228 av_rdft_end(is->rdft);
1229 av_freep(&is->rdft_data);
1234 case AVMEDIA_TYPE_VIDEO:
1235 decoder_abort(&is->viddec, &is->pictq);
1236 decoder_destroy(&is->viddec);
1238 case AVMEDIA_TYPE_SUBTITLE:
1239 decoder_abort(&is->subdec, &is->subpq);
1240 decoder_destroy(&is->subdec);
1246 ic->streams[stream_index]->discard = AVDISCARD_ALL;
1247 switch (codecpar->codec_type) {
1248 case AVMEDIA_TYPE_AUDIO:
1249 is->audio_st = NULL;
1250 is->audio_stream = -1;
1252 case AVMEDIA_TYPE_VIDEO:
1253 is->video_st = NULL;
1254 is->video_stream = -1;
1256 case AVMEDIA_TYPE_SUBTITLE:
1257 is->subtitle_st = NULL;
1258 is->subtitle_stream = -1;
1265 static void stream_close(VideoState *is)
1267 /* XXX: use a special url_shutdown call to abort parse cleanly */
1268 is->abort_request = 1;
1269 SDL_WaitThread(is->read_tid, NULL);
1271 /* close each stream */
1272 if (is->audio_stream >= 0)
1273 stream_component_close(is, is->audio_stream);
1274 if (is->video_stream >= 0)
1275 stream_component_close(is, is->video_stream);
1276 if (is->subtitle_stream >= 0)
1277 stream_component_close(is, is->subtitle_stream);
1279 avformat_close_input(&is->ic);
1281 packet_queue_destroy(&is->videoq);
1282 packet_queue_destroy(&is->audioq);
1283 packet_queue_destroy(&is->subtitleq);
1285 /* free all pictures */
1286 frame_queue_destory(&is->pictq);
1287 frame_queue_destory(&is->sampq);
1288 frame_queue_destory(&is->subpq);
1289 SDL_DestroyCond(is->continue_read_thread);
1290 sws_freeContext(is->img_convert_ctx);
1291 sws_freeContext(is->sub_convert_ctx);
1292 av_free(is->filename);
1293 if (is->vis_texture)
1294 SDL_DestroyTexture(is->vis_texture);
1295 if (is->vid_texture)
1296 SDL_DestroyTexture(is->vid_texture);
1297 if (is->sub_texture)
1298 SDL_DestroyTexture(is->sub_texture);
1302 static void do_exit(VideoState *is)
1308 SDL_DestroyRenderer(renderer);
1310 SDL_DestroyWindow(window);
1313 av_freep(&vfilters_list);
1315 avformat_network_deinit();
1319 av_log(NULL, AV_LOG_QUIET, "%s", "");
1323 static void sigterm_handler(int sig)
1328 static void set_default_window_size(int width, int height, AVRational sar)
1331 int max_width = screen_width ? screen_width : INT_MAX;
1332 int max_height = screen_height ? screen_height : INT_MAX;
1333 if (max_width == INT_MAX && max_height == INT_MAX)
1334 max_height = height;
1335 calculate_display_rect(&rect, 0, 0, max_width, max_height, width, height, sar);
1336 default_width = rect.w;
1337 default_height = rect.h;
1340 static int video_open(VideoState *is)
1344 w = screen_width ? screen_width : default_width;
1345 h = screen_height ? screen_height : default_height;
1348 window_title = input_filename;
1349 SDL_SetWindowTitle(window, window_title);
1351 SDL_SetWindowSize(window, w, h);
1352 SDL_SetWindowPosition(window, screen_left, screen_top);
1354 SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN_DESKTOP);
1355 SDL_ShowWindow(window);
1363 /* display the current picture, if any */
1364 static void video_display(VideoState *is)
1369 SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
1370 SDL_RenderClear(renderer);
1371 if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
1372 video_audio_display(is);
1373 else if (is->video_st)
1374 video_image_display(is);
1375 SDL_RenderPresent(renderer);
1378 static double get_clock(Clock *c)
1380 if (*c->queue_serial != c->serial)
1385 double time = av_gettime_relative() / 1000000.0;
1386 return c->pts_drift + time - (time - c->last_updated) * (1.0 - c->speed);
1390 static void set_clock_at(Clock *c, double pts, int serial, double time)
1393 c->last_updated = time;
1394 c->pts_drift = c->pts - time;
1398 static void set_clock(Clock *c, double pts, int serial)
1400 double time = av_gettime_relative() / 1000000.0;
1401 set_clock_at(c, pts, serial, time);
1404 static void set_clock_speed(Clock *c, double speed)
1406 set_clock(c, get_clock(c), c->serial);
1410 static void init_clock(Clock *c, int *queue_serial)
1414 c->queue_serial = queue_serial;
1415 set_clock(c, NAN, -1);
1418 static void sync_clock_to_slave(Clock *c, Clock *slave)
1420 double clock = get_clock(c);
1421 double slave_clock = get_clock(slave);
1422 if (!isnan(slave_clock) && (isnan(clock) || fabs(clock - slave_clock) > AV_NOSYNC_THRESHOLD))
1423 set_clock(c, slave_clock, slave->serial);
1426 static int get_master_sync_type(VideoState *is) {
1427 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1429 return AV_SYNC_VIDEO_MASTER;
1431 return AV_SYNC_AUDIO_MASTER;
1432 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1434 return AV_SYNC_AUDIO_MASTER;
1436 return AV_SYNC_EXTERNAL_CLOCK;
1438 return AV_SYNC_EXTERNAL_CLOCK;
1442 /* get the current master clock value */
1443 static double get_master_clock(VideoState *is)
1447 switch (get_master_sync_type(is)) {
1448 case AV_SYNC_VIDEO_MASTER:
1449 val = get_clock(&is->vidclk);
1451 case AV_SYNC_AUDIO_MASTER:
1452 val = get_clock(&is->audclk);
1455 val = get_clock(&is->extclk);
1461 static void check_external_clock_speed(VideoState *is) {
1462 if (is->video_stream >= 0 && is->videoq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES ||
1463 is->audio_stream >= 0 && is->audioq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES) {
1464 set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP));
1465 } else if ((is->video_stream < 0 || is->videoq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES) &&
1466 (is->audio_stream < 0 || is->audioq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES)) {
1467 set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP));
1469 double speed = is->extclk.speed;
1471 set_clock_speed(&is->extclk, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed));
1475 /* seek in the stream */
1476 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1478 if (!is->seek_req) {
1481 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1483 is->seek_flags |= AVSEEK_FLAG_BYTE;
1485 SDL_CondSignal(is->continue_read_thread);
1489 /* pause or resume the video */
1490 static void stream_toggle_pause(VideoState *is)
1493 is->frame_timer += av_gettime_relative() / 1000000.0 - is->vidclk.last_updated;
1494 if (is->read_pause_return != AVERROR(ENOSYS)) {
1495 is->vidclk.paused = 0;
1497 set_clock(&is->vidclk, get_clock(&is->vidclk), is->vidclk.serial);
1499 set_clock(&is->extclk, get_clock(&is->extclk), is->extclk.serial);
1500 is->paused = is->audclk.paused = is->vidclk.paused = is->extclk.paused = !is->paused;
1503 static void toggle_pause(VideoState *is)
1505 stream_toggle_pause(is);
1509 static void toggle_mute(VideoState *is)
1511 is->muted = !is->muted;
1514 static void update_volume(VideoState *is, int sign, double step)
1516 double volume_level = is->audio_volume ? (20 * log(is->audio_volume / (double)SDL_MIX_MAXVOLUME) / log(10)) : -1000.0;
1517 int new_volume = lrint(SDL_MIX_MAXVOLUME * pow(10.0, (volume_level + sign * step) / 20.0));
1518 is->audio_volume = av_clip(is->audio_volume == new_volume ? (is->audio_volume + sign) : new_volume, 0, SDL_MIX_MAXVOLUME);
1521 static void step_to_next_frame(VideoState *is)
1523 /* if the stream is paused unpause it, then step */
1525 stream_toggle_pause(is);
1529 static double compute_target_delay(double delay, VideoState *is)
1531 double sync_threshold, diff = 0;
1533 /* update delay to follow master synchronisation source */
1534 if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) {
1535 /* if video is slave, we try to correct big delays by
1536 duplicating or deleting a frame */
1537 diff = get_clock(&is->vidclk) - get_master_clock(is);
1539 /* skip or repeat frame. We take into account the
1540 delay to compute the threshold. I still don't know
1541 if it is the best guess */
1542 sync_threshold = FFMAX(AV_SYNC_THRESHOLD_MIN, FFMIN(AV_SYNC_THRESHOLD_MAX, delay));
1543 if (!isnan(diff) && fabs(diff) < is->max_frame_duration) {
1544 if (diff <= -sync_threshold)
1545 delay = FFMAX(0, delay + diff);
1546 else if (diff >= sync_threshold && delay > AV_SYNC_FRAMEDUP_THRESHOLD)
1547 delay = delay + diff;
1548 else if (diff >= sync_threshold)
1553 av_log(NULL, AV_LOG_TRACE, "video: delay=%0.3f A-V=%f\n",
1559 static double vp_duration(VideoState *is, Frame *vp, Frame *nextvp) {
1560 if (vp->serial == nextvp->serial) {
1561 double duration = nextvp->pts - vp->pts;
1562 if (isnan(duration) || duration <= 0 || duration > is->max_frame_duration)
1563 return vp->duration;
1571 static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) {
1572 /* update current video pts */
1573 set_clock(&is->vidclk, pts, serial);
1574 sync_clock_to_slave(&is->extclk, &is->vidclk);
1577 /* called to display each frame */
1578 static void video_refresh(void *opaque, double *remaining_time)
1580 VideoState *is = opaque;
1585 if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime)
1586 check_external_clock_speed(is);
1588 if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) {
1589 time = av_gettime_relative() / 1000000.0;
1590 if (is->force_refresh || is->last_vis_time + rdftspeed < time) {
1592 is->last_vis_time = time;
1594 *remaining_time = FFMIN(*remaining_time, is->last_vis_time + rdftspeed - time);
1599 if (frame_queue_nb_remaining(&is->pictq) == 0) {
1600 // nothing to do, no picture to display in the queue
1602 double last_duration, duration, delay;
1605 /* dequeue the picture */
1606 lastvp = frame_queue_peek_last(&is->pictq);
1607 vp = frame_queue_peek(&is->pictq);
1609 if (vp->serial != is->videoq.serial) {
1610 frame_queue_next(&is->pictq);
1614 if (lastvp->serial != vp->serial)
1615 is->frame_timer = av_gettime_relative() / 1000000.0;
1620 /* compute nominal last_duration */
1621 last_duration = vp_duration(is, lastvp, vp);
1622 delay = compute_target_delay(last_duration, is);
1624 time= av_gettime_relative()/1000000.0;
1625 if (time < is->frame_timer + delay) {
1626 *remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time);
1630 is->frame_timer += delay;
1631 if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX)
1632 is->frame_timer = time;
1634 SDL_LockMutex(is->pictq.mutex);
1635 if (!isnan(vp->pts))
1636 update_video_pts(is, vp->pts, vp->pos, vp->serial);
1637 SDL_UnlockMutex(is->pictq.mutex);
1639 if (frame_queue_nb_remaining(&is->pictq) > 1) {
1640 Frame *nextvp = frame_queue_peek_next(&is->pictq);
1641 duration = vp_duration(is, vp, nextvp);
1642 if(!is->step && (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){
1643 is->frame_drops_late++;
1644 frame_queue_next(&is->pictq);
1649 if (is->subtitle_st) {
1650 while (frame_queue_nb_remaining(&is->subpq) > 0) {
1651 sp = frame_queue_peek(&is->subpq);
1653 if (frame_queue_nb_remaining(&is->subpq) > 1)
1654 sp2 = frame_queue_peek_next(&is->subpq);
1658 if (sp->serial != is->subtitleq.serial
1659 || (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1660 || (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1664 for (i = 0; i < sp->sub.num_rects; i++) {
1665 AVSubtitleRect *sub_rect = sp->sub.rects[i];
1669 if (!SDL_LockTexture(is->sub_texture, (SDL_Rect *)sub_rect, (void **)&pixels, &pitch)) {
1670 for (j = 0; j < sub_rect->h; j++, pixels += pitch)
1671 memset(pixels, 0, sub_rect->w << 2);
1672 SDL_UnlockTexture(is->sub_texture);
1676 frame_queue_next(&is->subpq);
1683 frame_queue_next(&is->pictq);
1684 is->force_refresh = 1;
1686 if (is->step && !is->paused)
1687 stream_toggle_pause(is);
1690 /* display picture */
1691 if (!display_disable && is->force_refresh && is->show_mode == SHOW_MODE_VIDEO && is->pictq.rindex_shown)
1694 is->force_refresh = 0;
1697 static int64_t last_time;
1699 int aqsize, vqsize, sqsize;
1702 cur_time = av_gettime_relative();
1703 if (!last_time || (cur_time - last_time) >= 30000) {
1708 aqsize = is->audioq.size;
1710 vqsize = is->videoq.size;
1711 if (is->subtitle_st)
1712 sqsize = is->subtitleq.size;
1714 if (is->audio_st && is->video_st)
1715 av_diff = get_clock(&is->audclk) - get_clock(&is->vidclk);
1716 else if (is->video_st)
1717 av_diff = get_master_clock(is) - get_clock(&is->vidclk);
1718 else if (is->audio_st)
1719 av_diff = get_master_clock(is) - get_clock(&is->audclk);
1721 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
1723 "%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1724 get_master_clock(is),
1725 (is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : " ")),
1727 is->frame_drops_early + is->frame_drops_late,
1731 is->video_st ? is->viddec.avctx->pts_correction_num_faulty_dts : 0,
1732 is->video_st ? is->viddec.avctx->pts_correction_num_faulty_pts : 0);
1734 if (show_status == 1 && AV_LOG_INFO > av_log_get_level())
1735 fprintf(stderr, "%s", buf.str);
1737 av_log(NULL, AV_LOG_INFO, "%s", buf.str);
1740 av_bprint_finalize(&buf, NULL);
1742 last_time = cur_time;
1747 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial)
1751 #if defined(DEBUG_SYNC)
1752 printf("frame_type=%c pts=%0.3f\n",
1753 av_get_picture_type_char(src_frame->pict_type), pts);
1756 if (!(vp = frame_queue_peek_writable(&is->pictq)))
1759 vp->sar = src_frame->sample_aspect_ratio;
1762 vp->width = src_frame->width;
1763 vp->height = src_frame->height;
1764 vp->format = src_frame->format;
1767 vp->duration = duration;
1769 vp->serial = serial;
1771 set_default_window_size(vp->width, vp->height, vp->sar);
1773 av_frame_move_ref(vp->frame, src_frame);
1774 frame_queue_push(&is->pictq);
1778 static int get_video_frame(VideoState *is, AVFrame *frame)
1782 if ((got_picture = decoder_decode_frame(&is->viddec, frame, NULL)) < 0)
1788 if (frame->pts != AV_NOPTS_VALUE)
1789 dpts = av_q2d(is->video_st->time_base) * frame->pts;
1791 frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);
1793 if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) {
1794 if (frame->pts != AV_NOPTS_VALUE) {
1795 double diff = dpts - get_master_clock(is);
1796 if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD &&
1797 diff - is->frame_last_filter_delay < 0 &&
1798 is->viddec.pkt_serial == is->vidclk.serial &&
1799 is->videoq.nb_packets) {
1800 is->frame_drops_early++;
1801 av_frame_unref(frame);
1812 static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,
1813 AVFilterContext *source_ctx, AVFilterContext *sink_ctx)
1816 int nb_filters = graph->nb_filters;
1817 AVFilterInOut *outputs = NULL, *inputs = NULL;
1820 outputs = avfilter_inout_alloc();
1821 inputs = avfilter_inout_alloc();
1822 if (!outputs || !inputs) {
1823 ret = AVERROR(ENOMEM);
1827 outputs->name = av_strdup("in");
1828 outputs->filter_ctx = source_ctx;
1829 outputs->pad_idx = 0;
1830 outputs->next = NULL;
1832 inputs->name = av_strdup("out");
1833 inputs->filter_ctx = sink_ctx;
1834 inputs->pad_idx = 0;
1835 inputs->next = NULL;
1837 if ((ret = avfilter_graph_parse_ptr(graph, filtergraph, &inputs, &outputs, NULL)) < 0)
1840 if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)
1844 /* Reorder the filters to ensure that inputs of the custom filters are merged first */
1845 for (i = 0; i < graph->nb_filters - nb_filters; i++)
1846 FFSWAP(AVFilterContext*, graph->filters[i], graph->filters[i + nb_filters]);
1848 ret = avfilter_graph_config(graph, NULL);
1850 avfilter_inout_free(&outputs);
1851 avfilter_inout_free(&inputs);
1855 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame)
1857 enum AVPixelFormat pix_fmts[FF_ARRAY_ELEMS(sdl_texture_format_map)];
1858 char sws_flags_str[512] = "";
1859 char buffersrc_args[256];
1861 AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter = NULL;
1862 AVCodecParameters *codecpar = is->video_st->codecpar;
1863 AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL);
1864 AVDictionaryEntry *e = NULL;
1865 int nb_pix_fmts = 0;
1868 for (i = 0; i < renderer_info.num_texture_formats; i++) {
1869 for (j = 0; j < FF_ARRAY_ELEMS(sdl_texture_format_map) - 1; j++) {
1870 if (renderer_info.texture_formats[i] == sdl_texture_format_map[j].texture_fmt) {
1871 pix_fmts[nb_pix_fmts++] = sdl_texture_format_map[j].format;
1876 pix_fmts[nb_pix_fmts] = AV_PIX_FMT_NONE;
1878 while ((e = av_dict_get(sws_dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
1879 if (!strcmp(e->key, "sws_flags")) {
1880 av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", "flags", e->value);
1882 av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", e->key, e->value);
1884 if (strlen(sws_flags_str))
1885 sws_flags_str[strlen(sws_flags_str)-1] = '\0';
1887 graph->scale_sws_opts = av_strdup(sws_flags_str);
1889 snprintf(buffersrc_args, sizeof(buffersrc_args),
1890 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
1891 frame->width, frame->height, frame->format,
1892 is->video_st->time_base.num, is->video_st->time_base.den,
1893 codecpar->sample_aspect_ratio.num, FFMAX(codecpar->sample_aspect_ratio.den, 1));
1894 if (fr.num && fr.den)
1895 av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den);
1897 if ((ret = avfilter_graph_create_filter(&filt_src,
1898 avfilter_get_by_name("buffer"),
1899 "ffplay_buffer", buffersrc_args, NULL,
1903 ret = avfilter_graph_create_filter(&filt_out,
1904 avfilter_get_by_name("buffersink"),
1905 "ffplay_buffersink", NULL, NULL, graph);
1909 if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
1912 last_filter = filt_out;
1914 /* Note: this macro adds a filter before the lastly added filter, so the
1915 * processing order of the filters is in reverse */
1916 #define INSERT_FILT(name, arg) do { \
1917 AVFilterContext *filt_ctx; \
1919 ret = avfilter_graph_create_filter(&filt_ctx, \
1920 avfilter_get_by_name(name), \
1921 "ffplay_" name, arg, NULL, graph); \
1925 ret = avfilter_link(filt_ctx, 0, last_filter, 0); \
1929 last_filter = filt_ctx; \
1933 double theta = get_rotation(is->video_st);
1935 if (fabs(theta - 90) < 1.0) {
1936 INSERT_FILT("transpose", "clock");
1937 } else if (fabs(theta - 180) < 1.0) {
1938 INSERT_FILT("hflip", NULL);
1939 INSERT_FILT("vflip", NULL);
1940 } else if (fabs(theta - 270) < 1.0) {
1941 INSERT_FILT("transpose", "cclock");
1942 } else if (fabs(theta) > 1.0) {
1943 char rotate_buf[64];
1944 snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta);
1945 INSERT_FILT("rotate", rotate_buf);
1949 if ((ret = configure_filtergraph(graph, vfilters, filt_src, last_filter)) < 0)
1952 is->in_video_filter = filt_src;
1953 is->out_video_filter = filt_out;
1959 static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format)
1961 static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE };
1962 int sample_rates[2] = { 0, -1 };
1963 int64_t channel_layouts[2] = { 0, -1 };
1964 int channels[2] = { 0, -1 };
1965 AVFilterContext *filt_asrc = NULL, *filt_asink = NULL;
1966 char aresample_swr_opts[512] = "";
1967 AVDictionaryEntry *e = NULL;
1968 char asrc_args[256];
1971 avfilter_graph_free(&is->agraph);
1972 if (!(is->agraph = avfilter_graph_alloc()))
1973 return AVERROR(ENOMEM);
1974 is->agraph->nb_threads = filter_nbthreads;
1976 while ((e = av_dict_get(swr_opts, "", e, AV_DICT_IGNORE_SUFFIX)))
1977 av_strlcatf(aresample_swr_opts, sizeof(aresample_swr_opts), "%s=%s:", e->key, e->value);
1978 if (strlen(aresample_swr_opts))
1979 aresample_swr_opts[strlen(aresample_swr_opts)-1] = '\0';
1980 av_opt_set(is->agraph, "aresample_swr_opts", aresample_swr_opts, 0);
1982 ret = snprintf(asrc_args, sizeof(asrc_args),
1983 "sample_rate=%d:sample_fmt=%s:channels=%d:time_base=%d/%d",
1984 is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt),
1985 is->audio_filter_src.channels,
1986 1, is->audio_filter_src.freq);
1987 if (is->audio_filter_src.channel_layout)
1988 snprintf(asrc_args + ret, sizeof(asrc_args) - ret,
1989 ":channel_layout=0x%"PRIx64, is->audio_filter_src.channel_layout);
1991 ret = avfilter_graph_create_filter(&filt_asrc,
1992 avfilter_get_by_name("abuffer"), "ffplay_abuffer",
1993 asrc_args, NULL, is->agraph);
1998 ret = avfilter_graph_create_filter(&filt_asink,
1999 avfilter_get_by_name("abuffersink"), "ffplay_abuffersink",
2000 NULL, NULL, is->agraph);
2004 if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts, AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
2006 if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0)
2009 if (force_output_format) {
2010 channel_layouts[0] = is->audio_tgt.channel_layout;
2011 channels [0] = is->audio_tgt.channel_layout ? -1 : is->audio_tgt.channels;
2012 sample_rates [0] = is->audio_tgt.freq;
2013 if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0)
2015 if ((ret = av_opt_set_int_list(filt_asink, "channel_layouts", channel_layouts, -1, AV_OPT_SEARCH_CHILDREN)) < 0)
2017 if ((ret = av_opt_set_int_list(filt_asink, "channel_counts" , channels , -1, AV_OPT_SEARCH_CHILDREN)) < 0)
2019 if ((ret = av_opt_set_int_list(filt_asink, "sample_rates" , sample_rates , -1, AV_OPT_SEARCH_CHILDREN)) < 0)
2024 if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0)
2027 is->in_audio_filter = filt_asrc;
2028 is->out_audio_filter = filt_asink;
2032 avfilter_graph_free(&is->agraph);
2035 #endif /* CONFIG_AVFILTER */
2037 static int audio_thread(void *arg)
2039 VideoState *is = arg;
2040 AVFrame *frame = av_frame_alloc();
2043 int last_serial = -1;
2044 int64_t dec_channel_layout;
2052 return AVERROR(ENOMEM);
2055 if ((got_frame = decoder_decode_frame(&is->auddec, frame, NULL)) < 0)
2059 tb = (AVRational){1, frame->sample_rate};
2062 dec_channel_layout = get_valid_channel_layout(frame->channel_layout, frame->channels);
2065 cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels,
2066 frame->format, frame->channels) ||
2067 is->audio_filter_src.channel_layout != dec_channel_layout ||
2068 is->audio_filter_src.freq != frame->sample_rate ||
2069 is->auddec.pkt_serial != last_serial;
2072 char buf1[1024], buf2[1024];
2073 av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout);
2074 av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout);
2075 av_log(NULL, AV_LOG_DEBUG,
2076 "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",
2077 is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, last_serial,
2078 frame->sample_rate, frame->channels, av_get_sample_fmt_name(frame->format), buf2, is->auddec.pkt_serial);
2080 is->audio_filter_src.fmt = frame->format;
2081 is->audio_filter_src.channels = frame->channels;
2082 is->audio_filter_src.channel_layout = dec_channel_layout;
2083 is->audio_filter_src.freq = frame->sample_rate;
2084 last_serial = is->auddec.pkt_serial;
2086 if ((ret = configure_audio_filters(is, afilters, 1)) < 0)
2090 if ((ret = av_buffersrc_add_frame(is->in_audio_filter, frame)) < 0)
2093 while ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, frame, 0)) >= 0) {
2094 tb = av_buffersink_get_time_base(is->out_audio_filter);
2096 if (!(af = frame_queue_peek_writable(&is->sampq)))
2099 af->pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb);
2100 af->pos = frame->pkt_pos;
2101 af->serial = is->auddec.pkt_serial;
2102 af->duration = av_q2d((AVRational){frame->nb_samples, frame->sample_rate});
2104 av_frame_move_ref(af->frame, frame);
2105 frame_queue_push(&is->sampq);
2108 if (is->audioq.serial != is->auddec.pkt_serial)
2111 if (ret == AVERROR_EOF)
2112 is->auddec.finished = is->auddec.pkt_serial;
2115 } while (ret >= 0 || ret == AVERROR(EAGAIN) || ret == AVERROR_EOF);
2118 avfilter_graph_free(&is->agraph);
2120 av_frame_free(&frame);
2124 static int decoder_start(Decoder *d, int (*fn)(void *), const char *thread_name, void* arg)
2126 packet_queue_start(d->queue);
2127 d->decoder_tid = SDL_CreateThread(fn, thread_name, arg);
2128 if (!d->decoder_tid) {
2129 av_log(NULL, AV_LOG_ERROR, "SDL_CreateThread(): %s\n", SDL_GetError());
2130 return AVERROR(ENOMEM);
2135 static int video_thread(void *arg)
2137 VideoState *is = arg;
2138 AVFrame *frame = av_frame_alloc();
2142 AVRational tb = is->video_st->time_base;
2143 AVRational frame_rate = av_guess_frame_rate(is->ic, is->video_st, NULL);
2146 AVFilterGraph *graph = NULL;
2147 AVFilterContext *filt_out = NULL, *filt_in = NULL;
2150 enum AVPixelFormat last_format = -2;
2151 int last_serial = -1;
2152 int last_vfilter_idx = 0;
2156 return AVERROR(ENOMEM);
2159 ret = get_video_frame(is, frame);
2166 if ( last_w != frame->width
2167 || last_h != frame->height
2168 || last_format != frame->format
2169 || last_serial != is->viddec.pkt_serial
2170 || last_vfilter_idx != is->vfilter_idx) {
2171 av_log(NULL, AV_LOG_DEBUG,
2172 "Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n",
2174 (const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial,
2175 frame->width, frame->height,
2176 (const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), is->viddec.pkt_serial);
2177 avfilter_graph_free(&graph);
2178 graph = avfilter_graph_alloc();
2180 ret = AVERROR(ENOMEM);
2183 graph->nb_threads = filter_nbthreads;
2184 if ((ret = configure_video_filters(graph, is, vfilters_list ? vfilters_list[is->vfilter_idx] : NULL, frame)) < 0) {
2186 event.type = FF_QUIT_EVENT;
2187 event.user.data1 = is;
2188 SDL_PushEvent(&event);
2191 filt_in = is->in_video_filter;
2192 filt_out = is->out_video_filter;
2193 last_w = frame->width;
2194 last_h = frame->height;
2195 last_format = frame->format;
2196 last_serial = is->viddec.pkt_serial;
2197 last_vfilter_idx = is->vfilter_idx;
2198 frame_rate = av_buffersink_get_frame_rate(filt_out);
2201 ret = av_buffersrc_add_frame(filt_in, frame);
2206 is->frame_last_returned_time = av_gettime_relative() / 1000000.0;
2208 ret = av_buffersink_get_frame_flags(filt_out, frame, 0);
2210 if (ret == AVERROR_EOF)
2211 is->viddec.finished = is->viddec.pkt_serial;
2216 is->frame_last_filter_delay = av_gettime_relative() / 1000000.0 - is->frame_last_returned_time;
2217 if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
2218 is->frame_last_filter_delay = 0;
2219 tb = av_buffersink_get_time_base(filt_out);
2221 duration = (frame_rate.num && frame_rate.den ? av_q2d((AVRational){frame_rate.den, frame_rate.num}) : 0);
2222 pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb);
2223 ret = queue_picture(is, frame, pts, duration, frame->pkt_pos, is->viddec.pkt_serial);
2224 av_frame_unref(frame);
2226 if (is->videoq.serial != is->viddec.pkt_serial)
2236 avfilter_graph_free(&graph);
2238 av_frame_free(&frame);
2242 static int subtitle_thread(void *arg)
2244 VideoState *is = arg;
2250 if (!(sp = frame_queue_peek_writable(&is->subpq)))
2253 if ((got_subtitle = decoder_decode_frame(&is->subdec, NULL, &sp->sub)) < 0)
2258 if (got_subtitle && sp->sub.format == 0) {
2259 if (sp->sub.pts != AV_NOPTS_VALUE)
2260 pts = sp->sub.pts / (double)AV_TIME_BASE;
2262 sp->serial = is->subdec.pkt_serial;
2263 sp->width = is->subdec.avctx->width;
2264 sp->height = is->subdec.avctx->height;
2267 /* now we can update the picture count */
2268 frame_queue_push(&is->subpq);
2269 } else if (got_subtitle) {
2270 avsubtitle_free(&sp->sub);
2276 /* copy samples for viewing in editor window */
2277 static void update_sample_display(VideoState *is, short *samples, int samples_size)
2281 size = samples_size / sizeof(short);
2283 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
2286 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
2288 is->sample_array_index += len;
2289 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
2290 is->sample_array_index = 0;
2295 /* return the wanted number of samples to get better sync if sync_type is video
2296 * or external master clock */
2297 static int synchronize_audio(VideoState *is, int nb_samples)
2299 int wanted_nb_samples = nb_samples;
2301 /* if not master, then we try to remove or add samples to correct the clock */
2302 if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) {
2303 double diff, avg_diff;
2304 int min_nb_samples, max_nb_samples;
2306 diff = get_clock(&is->audclk) - get_master_clock(is);
2308 if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) {
2309 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2310 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2311 /* not enough measures to have a correct estimate */
2312 is->audio_diff_avg_count++;
2314 /* estimate the A-V difference */
2315 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2317 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2318 wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq);
2319 min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2320 max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
2321 wanted_nb_samples = av_clip(wanted_nb_samples, min_nb_samples, max_nb_samples);
2323 av_log(NULL, AV_LOG_TRACE, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n",
2324 diff, avg_diff, wanted_nb_samples - nb_samples,
2325 is->audio_clock, is->audio_diff_threshold);
2328 /* too big difference : may be initial PTS errors, so
2330 is->audio_diff_avg_count = 0;
2331 is->audio_diff_cum = 0;
2335 return wanted_nb_samples;
2339 * Decode one audio frame and return its uncompressed size.
2341 * The processed audio frame is decoded, converted if required, and
2342 * stored in is->audio_buf, with size in bytes given by the return
2345 static int audio_decode_frame(VideoState *is)
2347 int data_size, resampled_data_size;
2348 int64_t dec_channel_layout;
2349 av_unused double audio_clock0;
2350 int wanted_nb_samples;
2358 while (frame_queue_nb_remaining(&is->sampq) == 0) {
2359 if ((av_gettime_relative() - audio_callback_time) > 1000000LL * is->audio_hw_buf_size / is->audio_tgt.bytes_per_sec / 2)
2364 if (!(af = frame_queue_peek_readable(&is->sampq)))
2366 frame_queue_next(&is->sampq);
2367 } while (af->serial != is->audioq.serial);
2369 data_size = av_samples_get_buffer_size(NULL, af->frame->channels,
2370 af->frame->nb_samples,
2371 af->frame->format, 1);
2373 dec_channel_layout =
2374 (af->frame->channel_layout && af->frame->channels == av_get_channel_layout_nb_channels(af->frame->channel_layout)) ?
2375 af->frame->channel_layout : av_get_default_channel_layout(af->frame->channels);
2376 wanted_nb_samples = synchronize_audio(is, af->frame->nb_samples);
2378 if (af->frame->format != is->audio_src.fmt ||
2379 dec_channel_layout != is->audio_src.channel_layout ||
2380 af->frame->sample_rate != is->audio_src.freq ||
2381 (wanted_nb_samples != af->frame->nb_samples && !is->swr_ctx)) {
2382 swr_free(&is->swr_ctx);
2383 is->swr_ctx = swr_alloc_set_opts(NULL,
2384 is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
2385 dec_channel_layout, af->frame->format, af->frame->sample_rate,
2387 if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
2388 av_log(NULL, AV_LOG_ERROR,
2389 "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
2390 af->frame->sample_rate, av_get_sample_fmt_name(af->frame->format), af->frame->channels,
2391 is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);
2392 swr_free(&is->swr_ctx);
2395 is->audio_src.channel_layout = dec_channel_layout;
2396 is->audio_src.channels = af->frame->channels;
2397 is->audio_src.freq = af->frame->sample_rate;
2398 is->audio_src.fmt = af->frame->format;
2402 const uint8_t **in = (const uint8_t **)af->frame->extended_data;
2403 uint8_t **out = &is->audio_buf1;
2404 int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate + 256;
2405 int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0);
2408 av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n");
2411 if (wanted_nb_samples != af->frame->nb_samples) {
2412 if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - af->frame->nb_samples) * is->audio_tgt.freq / af->frame->sample_rate,
2413 wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate) < 0) {
2414 av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n");
2418 av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size);
2419 if (!is->audio_buf1)
2420 return AVERROR(ENOMEM);
2421 len2 = swr_convert(is->swr_ctx, out, out_count, in, af->frame->nb_samples);
2423 av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n");
2426 if (len2 == out_count) {
2427 av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n");
2428 if (swr_init(is->swr_ctx) < 0)
2429 swr_free(&is->swr_ctx);
2431 is->audio_buf = is->audio_buf1;
2432 resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
2434 is->audio_buf = af->frame->data[0];
2435 resampled_data_size = data_size;
2438 audio_clock0 = is->audio_clock;
2439 /* update the audio clock with the pts */
2440 if (!isnan(af->pts))
2441 is->audio_clock = af->pts + (double) af->frame->nb_samples / af->frame->sample_rate;
2443 is->audio_clock = NAN;
2444 is->audio_clock_serial = af->serial;
2447 static double last_clock;
2448 printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n",
2449 is->audio_clock - last_clock,
2450 is->audio_clock, audio_clock0);
2451 last_clock = is->audio_clock;
2454 return resampled_data_size;
2457 /* prepare a new audio buffer */
2458 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2460 VideoState *is = opaque;
2461 int audio_size, len1;
2463 audio_callback_time = av_gettime_relative();
2466 if (is->audio_buf_index >= is->audio_buf_size) {
2467 audio_size = audio_decode_frame(is);
2468 if (audio_size < 0) {
2469 /* if error, just output silence */
2470 is->audio_buf = NULL;
2471 is->audio_buf_size = SDL_AUDIO_MIN_BUFFER_SIZE / is->audio_tgt.frame_size * is->audio_tgt.frame_size;
2473 if (is->show_mode != SHOW_MODE_VIDEO)
2474 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2475 is->audio_buf_size = audio_size;
2477 is->audio_buf_index = 0;
2479 len1 = is->audio_buf_size - is->audio_buf_index;
2482 if (!is->muted && is->audio_buf && is->audio_volume == SDL_MIX_MAXVOLUME)
2483 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2485 memset(stream, 0, len1);
2486 if (!is->muted && is->audio_buf)
2487 SDL_MixAudioFormat(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, AUDIO_S16SYS, len1, is->audio_volume);
2491 is->audio_buf_index += len1;
2493 is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
2494 /* Let's assume the audio driver that is used by SDL has two periods. */
2495 if (!isnan(is->audio_clock)) {
2496 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);
2497 sync_clock_to_slave(&is->extclk, &is->audclk);
2501 static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params)
2503 SDL_AudioSpec wanted_spec, spec;
2505 static const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6};
2506 static const int next_sample_rates[] = {0, 44100, 48000, 96000, 192000};
2507 int next_sample_rate_idx = FF_ARRAY_ELEMS(next_sample_rates) - 1;
2509 env = SDL_getenv("SDL_AUDIO_CHANNELS");
2511 wanted_nb_channels = atoi(env);
2512 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2514 if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) {
2515 wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
2516 wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
2518 wanted_nb_channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
2519 wanted_spec.channels = wanted_nb_channels;
2520 wanted_spec.freq = wanted_sample_rate;
2521 if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
2522 av_log(NULL, AV_LOG_ERROR, "Invalid sample rate or channel count!\n");
2525 while (next_sample_rate_idx && next_sample_rates[next_sample_rate_idx] >= wanted_spec.freq)
2526 next_sample_rate_idx--;
2527 wanted_spec.format = AUDIO_S16SYS;
2528 wanted_spec.silence = 0;
2529 wanted_spec.samples = FFMAX(SDL_AUDIO_MIN_BUFFER_SIZE, 2 << av_log2(wanted_spec.freq / SDL_AUDIO_MAX_CALLBACKS_PER_SEC));
2530 wanted_spec.callback = sdl_audio_callback;
2531 wanted_spec.userdata = opaque;
2532 while (!(audio_dev = SDL_OpenAudioDevice(NULL, 0, &wanted_spec, &spec, SDL_AUDIO_ALLOW_FREQUENCY_CHANGE | SDL_AUDIO_ALLOW_CHANNELS_CHANGE))) {
2533 av_log(NULL, AV_LOG_WARNING, "SDL_OpenAudio (%d channels, %d Hz): %s\n",
2534 wanted_spec.channels, wanted_spec.freq, SDL_GetError());
2535 wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)];
2536 if (!wanted_spec.channels) {
2537 wanted_spec.freq = next_sample_rates[next_sample_rate_idx--];
2538 wanted_spec.channels = wanted_nb_channels;
2539 if (!wanted_spec.freq) {
2540 av_log(NULL, AV_LOG_ERROR,
2541 "No more combinations to try, audio open failed\n");
2545 wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels);
2547 if (spec.format != AUDIO_S16SYS) {
2548 av_log(NULL, AV_LOG_ERROR,
2549 "SDL advised audio format %d is not supported!\n", spec.format);
2552 if (spec.channels != wanted_spec.channels) {
2553 wanted_channel_layout = av_get_default_channel_layout(spec.channels);
2554 if (!wanted_channel_layout) {
2555 av_log(NULL, AV_LOG_ERROR,
2556 "SDL advised channel count %d is not supported!\n", spec.channels);
2561 audio_hw_params->fmt = AV_SAMPLE_FMT_S16;
2562 audio_hw_params->freq = spec.freq;
2563 audio_hw_params->channel_layout = wanted_channel_layout;
2564 audio_hw_params->channels = spec.channels;
2565 audio_hw_params->frame_size = av_samples_get_buffer_size(NULL, audio_hw_params->channels, 1, audio_hw_params->fmt, 1);
2566 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);
2567 if (audio_hw_params->bytes_per_sec <= 0 || audio_hw_params->frame_size <= 0) {
2568 av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size failed\n");
2574 /* open a given stream. Return 0 if OK */
2575 static int stream_component_open(VideoState *is, int stream_index)
2577 AVFormatContext *ic = is->ic;
2578 AVCodecContext *avctx;
2580 const char *forced_codec_name = NULL;
2581 AVDictionary *opts = NULL;
2582 AVDictionaryEntry *t = NULL;
2583 int sample_rate, nb_channels;
2584 int64_t channel_layout;
2586 int stream_lowres = lowres;
2588 if (stream_index < 0 || stream_index >= ic->nb_streams)
2591 avctx = avcodec_alloc_context3(NULL);
2593 return AVERROR(ENOMEM);
2595 ret = avcodec_parameters_to_context(avctx, ic->streams[stream_index]->codecpar);
2598 avctx->pkt_timebase = ic->streams[stream_index]->time_base;
2600 codec = avcodec_find_decoder(avctx->codec_id);
2602 switch(avctx->codec_type){
2603 case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; forced_codec_name = audio_codec_name; break;
2604 case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break;
2605 case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; forced_codec_name = video_codec_name; break;
2607 if (forced_codec_name)
2608 codec = avcodec_find_decoder_by_name(forced_codec_name);
2610 if (forced_codec_name) av_log(NULL, AV_LOG_WARNING,
2611 "No codec could be found with name '%s'\n", forced_codec_name);
2612 else av_log(NULL, AV_LOG_WARNING,
2613 "No decoder could be found for codec %s\n", avcodec_get_name(avctx->codec_id));
2614 ret = AVERROR(EINVAL);
2618 avctx->codec_id = codec->id;
2619 if (stream_lowres > codec->max_lowres) {
2620 av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
2622 stream_lowres = codec->max_lowres;
2624 avctx->lowres = stream_lowres;
2627 avctx->flags2 |= AV_CODEC_FLAG2_FAST;
2629 opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
2630 if (!av_dict_get(opts, "threads", NULL, 0))
2631 av_dict_set(&opts, "threads", "auto", 0);
2633 av_dict_set_int(&opts, "lowres", stream_lowres, 0);
2634 if (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
2635 av_dict_set(&opts, "refcounted_frames", "1", 0);
2636 if ((ret = avcodec_open2(avctx, codec, &opts)) < 0) {
2639 if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2640 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2641 ret = AVERROR_OPTION_NOT_FOUND;
2646 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2647 switch (avctx->codec_type) {
2648 case AVMEDIA_TYPE_AUDIO:
2651 AVFilterContext *sink;
2653 is->audio_filter_src.freq = avctx->sample_rate;
2654 is->audio_filter_src.channels = avctx->channels;
2655 is->audio_filter_src.channel_layout = get_valid_channel_layout(avctx->channel_layout, avctx->channels);
2656 is->audio_filter_src.fmt = avctx->sample_fmt;
2657 if ((ret = configure_audio_filters(is, afilters, 0)) < 0)
2659 sink = is->out_audio_filter;
2660 sample_rate = av_buffersink_get_sample_rate(sink);
2661 nb_channels = av_buffersink_get_channels(sink);
2662 channel_layout = av_buffersink_get_channel_layout(sink);
2665 sample_rate = avctx->sample_rate;
2666 nb_channels = avctx->channels;
2667 channel_layout = avctx->channel_layout;
2670 /* prepare audio output */
2671 if ((ret = audio_open(is, channel_layout, nb_channels, sample_rate, &is->audio_tgt)) < 0)
2673 is->audio_hw_buf_size = ret;
2674 is->audio_src = is->audio_tgt;
2675 is->audio_buf_size = 0;
2676 is->audio_buf_index = 0;
2678 /* init averaging filter */
2679 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2680 is->audio_diff_avg_count = 0;
2681 /* since we do not have a precise anough audio FIFO fullness,
2682 we correct audio sync only if larger than this threshold */
2683 is->audio_diff_threshold = (double)(is->audio_hw_buf_size) / is->audio_tgt.bytes_per_sec;
2685 is->audio_stream = stream_index;
2686 is->audio_st = ic->streams[stream_index];
2688 decoder_init(&is->auddec, avctx, &is->audioq, is->continue_read_thread);
2689 if ((is->ic->iformat->flags & (AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK)) && !is->ic->iformat->read_seek) {
2690 is->auddec.start_pts = is->audio_st->start_time;
2691 is->auddec.start_pts_tb = is->audio_st->time_base;
2693 if ((ret = decoder_start(&is->auddec, audio_thread, "audio_decoder", is)) < 0)
2695 SDL_PauseAudioDevice(audio_dev, 0);
2697 case AVMEDIA_TYPE_VIDEO:
2698 is->video_stream = stream_index;
2699 is->video_st = ic->streams[stream_index];
2701 decoder_init(&is->viddec, avctx, &is->videoq, is->continue_read_thread);
2702 if ((ret = decoder_start(&is->viddec, video_thread, "video_decoder", is)) < 0)
2704 is->queue_attachments_req = 1;
2706 case AVMEDIA_TYPE_SUBTITLE:
2707 is->subtitle_stream = stream_index;
2708 is->subtitle_st = ic->streams[stream_index];
2710 decoder_init(&is->subdec, avctx, &is->subtitleq, is->continue_read_thread);
2711 if ((ret = decoder_start(&is->subdec, subtitle_thread, "subtitle_decoder", is)) < 0)
2720 avcodec_free_context(&avctx);
2722 av_dict_free(&opts);
2727 static int decode_interrupt_cb(void *ctx)
2729 VideoState *is = ctx;
2730 return is->abort_request;
2733 static int stream_has_enough_packets(AVStream *st, int stream_id, PacketQueue *queue) {
2734 return stream_id < 0 ||
2735 queue->abort_request ||
2736 (st->disposition & AV_DISPOSITION_ATTACHED_PIC) ||
2737 queue->nb_packets > MIN_FRAMES && (!queue->duration || av_q2d(st->time_base) * queue->duration > 1.0);
2740 static int is_realtime(AVFormatContext *s)
2742 if( !strcmp(s->iformat->name, "rtp")
2743 || !strcmp(s->iformat->name, "rtsp")
2744 || !strcmp(s->iformat->name, "sdp")
2748 if(s->pb && ( !strncmp(s->url, "rtp:", 4)
2749 || !strncmp(s->url, "udp:", 4)
2756 /* this thread gets the stream from the disk or the network */
2757 static int read_thread(void *arg)
2759 VideoState *is = arg;
2760 AVFormatContext *ic = NULL;
2762 int st_index[AVMEDIA_TYPE_NB];
2763 AVPacket pkt1, *pkt = &pkt1;
2764 int64_t stream_start_time;
2765 int pkt_in_play_range = 0;
2766 AVDictionaryEntry *t;
2767 SDL_mutex *wait_mutex = SDL_CreateMutex();
2768 int scan_all_pmts_set = 0;
2772 av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());
2773 ret = AVERROR(ENOMEM);
2777 memset(st_index, -1, sizeof(st_index));
2780 ic = avformat_alloc_context();
2782 av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n");
2783 ret = AVERROR(ENOMEM);
2786 ic->interrupt_callback.callback = decode_interrupt_cb;
2787 ic->interrupt_callback.opaque = is;
2788 if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
2789 av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
2790 scan_all_pmts_set = 1;
2792 err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
2794 print_error(is->filename, err);
2798 if (scan_all_pmts_set)
2799 av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
2801 if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
2802 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
2803 ret = AVERROR_OPTION_NOT_FOUND;
2809 ic->flags |= AVFMT_FLAG_GENPTS;
2811 av_format_inject_global_side_data(ic);
2813 if (find_stream_info) {
2814 AVDictionary **opts = setup_find_stream_info_opts(ic, codec_opts);
2815 int orig_nb_streams = ic->nb_streams;
2817 err = avformat_find_stream_info(ic, opts);
2819 for (i = 0; i < orig_nb_streams; i++)
2820 av_dict_free(&opts[i]);
2824 av_log(NULL, AV_LOG_WARNING,
2825 "%s: could not find codec parameters\n", is->filename);
2832 ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use avio_feof() to test for the end
2834 if (seek_by_bytes < 0)
2835 seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp("ogg", ic->iformat->name);
2837 is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0;
2839 if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0)))
2840 window_title = av_asprintf("%s - %s", t->value, input_filename);
2842 /* if seeking requested, we execute it */
2843 if (start_time != AV_NOPTS_VALUE) {
2846 timestamp = start_time;
2847 /* add the stream start time */
2848 if (ic->start_time != AV_NOPTS_VALUE)
2849 timestamp += ic->start_time;
2850 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2852 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
2853 is->filename, (double)timestamp / AV_TIME_BASE);
2857 is->realtime = is_realtime(ic);
2860 av_dump_format(ic, 0, is->filename, 0);
2862 for (i = 0; i < ic->nb_streams; i++) {
2863 AVStream *st = ic->streams[i];
2864 enum AVMediaType type = st->codecpar->codec_type;
2865 st->discard = AVDISCARD_ALL;
2866 if (type >= 0 && wanted_stream_spec[type] && st_index[type] == -1)
2867 if (avformat_match_stream_specifier(ic, st, wanted_stream_spec[type]) > 0)
2870 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
2871 if (wanted_stream_spec[i] && st_index[i] == -1) {
2872 av_log(NULL, AV_LOG_ERROR, "Stream specifier %s does not match any %s stream\n", wanted_stream_spec[i], av_get_media_type_string(i));
2873 st_index[i] = INT_MAX;
2878 st_index[AVMEDIA_TYPE_VIDEO] =
2879 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2880 st_index[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2882 st_index[AVMEDIA_TYPE_AUDIO] =
2883 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2884 st_index[AVMEDIA_TYPE_AUDIO],
2885 st_index[AVMEDIA_TYPE_VIDEO],
2887 if (!video_disable && !subtitle_disable)
2888 st_index[AVMEDIA_TYPE_SUBTITLE] =
2889 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2890 st_index[AVMEDIA_TYPE_SUBTITLE],
2891 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2892 st_index[AVMEDIA_TYPE_AUDIO] :
2893 st_index[AVMEDIA_TYPE_VIDEO]),
2896 is->show_mode = show_mode;
2897 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2898 AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]];
2899 AVCodecParameters *codecpar = st->codecpar;
2900 AVRational sar = av_guess_sample_aspect_ratio(ic, st, NULL);
2901 if (codecpar->width)
2902 set_default_window_size(codecpar->width, codecpar->height, sar);
2905 /* open the streams */
2906 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2907 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2911 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2912 ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2914 if (is->show_mode == SHOW_MODE_NONE)
2915 is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
2917 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2918 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2921 if (is->video_stream < 0 && is->audio_stream < 0) {
2922 av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n",
2928 if (infinite_buffer < 0 && is->realtime)
2929 infinite_buffer = 1;
2932 if (is->abort_request)
2934 if (is->paused != is->last_paused) {
2935 is->last_paused = is->paused;
2937 is->read_pause_return = av_read_pause(ic);
2941 #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
2943 (!strcmp(ic->iformat->name, "rtsp") ||
2944 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
2945 /* wait 10 ms to avoid trying to get another packet */
2952 int64_t seek_target = is->seek_pos;
2953 int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2954 int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2955 // FIXME the +-2 is due to rounding being not done in the correct direction in generation
2956 // of the seek_pos/seek_rel variables
2958 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2960 av_log(NULL, AV_LOG_ERROR,
2961 "%s: error while seeking\n", is->ic->url);
2963 if (is->audio_stream >= 0) {
2964 packet_queue_flush(&is->audioq);
2965 packet_queue_put(&is->audioq, &flush_pkt);
2967 if (is->subtitle_stream >= 0) {
2968 packet_queue_flush(&is->subtitleq);
2969 packet_queue_put(&is->subtitleq, &flush_pkt);
2971 if (is->video_stream >= 0) {
2972 packet_queue_flush(&is->videoq);
2973 packet_queue_put(&is->videoq, &flush_pkt);
2975 if (is->seek_flags & AVSEEK_FLAG_BYTE) {
2976 set_clock(&is->extclk, NAN, 0);
2978 set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0);
2982 is->queue_attachments_req = 1;
2985 step_to_next_frame(is);
2987 if (is->queue_attachments_req) {
2988 if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) {
2990 if ((ret = av_packet_ref(©, &is->video_st->attached_pic)) < 0)
2992 packet_queue_put(&is->videoq, ©);
2993 packet_queue_put_nullpacket(&is->videoq, is->video_stream);
2995 is->queue_attachments_req = 0;
2998 /* if the queue are full, no need to read more */
2999 if (infinite_buffer<1 &&
3000 (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
3001 || (stream_has_enough_packets(is->audio_st, is->audio_stream, &is->audioq) &&
3002 stream_has_enough_packets(is->video_st, is->video_stream, &is->videoq) &&
3003 stream_has_enough_packets(is->subtitle_st, is->subtitle_stream, &is->subtitleq)))) {
3005 SDL_LockMutex(wait_mutex);
3006 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
3007 SDL_UnlockMutex(wait_mutex);
3011 (!is->audio_st || (is->auddec.finished == is->audioq.serial && frame_queue_nb_remaining(&is->sampq) == 0)) &&
3012 (!is->video_st || (is->viddec.finished == is->videoq.serial && frame_queue_nb_remaining(&is->pictq) == 0))) {
3013 if (loop != 1 && (!loop || --loop)) {
3014 stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
3015 } else if (autoexit) {
3020 ret = av_read_frame(ic, pkt);
3022 if ((ret == AVERROR_EOF || avio_feof(ic->pb)) && !is->eof) {
3023 if (is->video_stream >= 0)
3024 packet_queue_put_nullpacket(&is->videoq, is->video_stream);
3025 if (is->audio_stream >= 0)
3026 packet_queue_put_nullpacket(&is->audioq, is->audio_stream);
3027 if (is->subtitle_stream >= 0)
3028 packet_queue_put_nullpacket(&is->subtitleq, is->subtitle_stream);
3031 if (ic->pb && ic->pb->error) {
3037 SDL_LockMutex(wait_mutex);
3038 SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
3039 SDL_UnlockMutex(wait_mutex);
3044 /* check if packet is in play range specified by user, then queue, otherwise discard */
3045 stream_start_time = ic->streams[pkt->stream_index]->start_time;
3046 pkt_ts = pkt->pts == AV_NOPTS_VALUE ? pkt->dts : pkt->pts;
3047 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
3048 (pkt_ts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) *
3049 av_q2d(ic->streams[pkt->stream_index]->time_base) -
3050 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
3051 <= ((double)duration / 1000000);
3052 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
3053 packet_queue_put(&is->audioq, pkt);
3054 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range
3055 && !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {
3056 packet_queue_put(&is->videoq, pkt);
3057 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
3058 packet_queue_put(&is->subtitleq, pkt);
3060 av_packet_unref(pkt);
3067 avformat_close_input(&ic);
3072 event.type = FF_QUIT_EVENT;
3073 event.user.data1 = is;
3074 SDL_PushEvent(&event);
3076 SDL_DestroyMutex(wait_mutex);
3080 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
3084 is = av_mallocz(sizeof(VideoState));
3087 is->last_video_stream = is->video_stream = -1;
3088 is->last_audio_stream = is->audio_stream = -1;
3089 is->last_subtitle_stream = is->subtitle_stream = -1;
3090 is->filename = av_strdup(filename);
3093 is->iformat = iformat;
3097 /* start video display */
3098 if (frame_queue_init(&is->pictq, &is->videoq, VIDEO_PICTURE_QUEUE_SIZE, 1) < 0)
3100 if (frame_queue_init(&is->subpq, &is->subtitleq, SUBPICTURE_QUEUE_SIZE, 0) < 0)
3102 if (frame_queue_init(&is->sampq, &is->audioq, SAMPLE_QUEUE_SIZE, 1) < 0)
3105 if (packet_queue_init(&is->videoq) < 0 ||
3106 packet_queue_init(&is->audioq) < 0 ||
3107 packet_queue_init(&is->subtitleq) < 0)
3110 if (!(is->continue_read_thread = SDL_CreateCond())) {
3111 av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());
3115 init_clock(&is->vidclk, &is->videoq.serial);
3116 init_clock(&is->audclk, &is->audioq.serial);
3117 init_clock(&is->extclk, &is->extclk.serial);
3118 is->audio_clock_serial = -1;
3119 if (startup_volume < 0)
3120 av_log(NULL, AV_LOG_WARNING, "-volume=%d < 0, setting to 0\n", startup_volume);
3121 if (startup_volume > 100)
3122 av_log(NULL, AV_LOG_WARNING, "-volume=%d > 100, setting to 100\n", startup_volume);
3123 startup_volume = av_clip(startup_volume, 0, 100);
3124 startup_volume = av_clip(SDL_MIX_MAXVOLUME * startup_volume / 100, 0, SDL_MIX_MAXVOLUME);
3125 is->audio_volume = startup_volume;
3127 is->av_sync_type = av_sync_type;
3128 is->read_tid = SDL_CreateThread(read_thread, "read_thread", is);
3129 if (!is->read_tid) {
3130 av_log(NULL, AV_LOG_FATAL, "SDL_CreateThread(): %s\n", SDL_GetError());
3138 static void stream_cycle_channel(VideoState *is, int codec_type)
3140 AVFormatContext *ic = is->ic;
3141 int start_index, stream_index;
3144 AVProgram *p = NULL;
3145 int nb_streams = is->ic->nb_streams;
3147 if (codec_type == AVMEDIA_TYPE_VIDEO) {
3148 start_index = is->last_video_stream;
3149 old_index = is->video_stream;
3150 } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
3151 start_index = is->last_audio_stream;
3152 old_index = is->audio_stream;
3154 start_index = is->last_subtitle_stream;
3155 old_index = is->subtitle_stream;
3157 stream_index = start_index;
3159 if (codec_type != AVMEDIA_TYPE_VIDEO && is->video_stream != -1) {
3160 p = av_find_program_from_stream(ic, NULL, is->video_stream);
3162 nb_streams = p->nb_stream_indexes;
3163 for (start_index = 0; start_index < nb_streams; start_index++)
3164 if (p->stream_index[start_index] == stream_index)
3166 if (start_index == nb_streams)
3168 stream_index = start_index;
3173 if (++stream_index >= nb_streams)
3175 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
3178 is->last_subtitle_stream = -1;
3181 if (start_index == -1)
3185 if (stream_index == start_index)
3187 st = is->ic->streams[p ? p->stream_index[stream_index] : stream_index];
3188 if (st->codecpar->codec_type == codec_type) {
3189 /* check that parameters are OK */
3190 switch (codec_type) {
3191 case AVMEDIA_TYPE_AUDIO:
3192 if (st->codecpar->sample_rate != 0 &&
3193 st->codecpar->channels != 0)
3196 case AVMEDIA_TYPE_VIDEO:
3197 case AVMEDIA_TYPE_SUBTITLE:
3205 if (p && stream_index != -1)
3206 stream_index = p->stream_index[stream_index];
3207 av_log(NULL, AV_LOG_INFO, "Switch %s stream from #%d to #%d\n",
3208 av_get_media_type_string(codec_type),
3212 stream_component_close(is, old_index);
3213 stream_component_open(is, stream_index);
3217 static void toggle_full_screen(VideoState *is)
3219 is_full_screen = !is_full_screen;
3220 SDL_SetWindowFullscreen(window, is_full_screen ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0);
3223 static void toggle_audio_display(VideoState *is)
3225 int next = is->show_mode;
3227 next = (next + 1) % SHOW_MODE_NB;
3228 } while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st));
3229 if (is->show_mode != next) {
3230 is->force_refresh = 1;
3231 is->show_mode = next;
3235 static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) {
3236 double remaining_time = 0.0;
3238 while (!SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT)) {
3239 if (!cursor_hidden && av_gettime_relative() - cursor_last_shown > CURSOR_HIDE_DELAY) {
3243 if (remaining_time > 0.0)
3244 av_usleep((int64_t)(remaining_time * 1000000.0));
3245 remaining_time = REFRESH_RATE;
3246 if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh))
3247 video_refresh(is, &remaining_time);
3252 static void seek_chapter(VideoState *is, int incr)
3254 int64_t pos = get_master_clock(is) * AV_TIME_BASE;
3257 if (!is->ic->nb_chapters)
3260 /* find the current chapter */
3261 for (i = 0; i < is->ic->nb_chapters; i++) {
3262 AVChapter *ch = is->ic->chapters[i];
3263 if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) {
3271 if (i >= is->ic->nb_chapters)
3274 av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i);
3275 stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base,
3276 AV_TIME_BASE_Q), 0, 0);
3279 /* handle an event sent by the GUI */
3280 static void event_loop(VideoState *cur_stream)
3283 double incr, pos, frac;
3287 refresh_loop_wait_event(cur_stream, &event);
3288 switch (event.type) {
3290 if (exit_on_keydown || event.key.keysym.sym == SDLK_ESCAPE || event.key.keysym.sym == SDLK_q) {
3291 do_exit(cur_stream);
3294 // If we don't yet have a window, skip all key events, because read_thread might still be initializing...
3295 if (!cur_stream->width)
3297 switch (event.key.keysym.sym) {
3299 toggle_full_screen(cur_stream);
3300 cur_stream->force_refresh = 1;
3304 toggle_pause(cur_stream);
3307 toggle_mute(cur_stream);
3309 case SDLK_KP_MULTIPLY:
3311 update_volume(cur_stream, 1, SDL_VOLUME_STEP);
3313 case SDLK_KP_DIVIDE:
3315 update_volume(cur_stream, -1, SDL_VOLUME_STEP);
3317 case SDLK_s: // S: Step to next frame
3318 step_to_next_frame(cur_stream);
3321 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
3324 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
3327 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
3328 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
3329 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
3332 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
3336 if (cur_stream->show_mode == SHOW_MODE_VIDEO && cur_stream->vfilter_idx < nb_vfilters - 1) {
3337 if (++cur_stream->vfilter_idx >= nb_vfilters)
3338 cur_stream->vfilter_idx = 0;
3340 cur_stream->vfilter_idx = 0;
3341 toggle_audio_display(cur_stream);
3344 toggle_audio_display(cur_stream);
3348 if (cur_stream->ic->nb_chapters <= 1) {
3352 seek_chapter(cur_stream, 1);
3355 if (cur_stream->ic->nb_chapters <= 1) {
3359 seek_chapter(cur_stream, -1);
3362 incr = seek_interval ? -seek_interval : -10.0;
3365 incr = seek_interval ? seek_interval : 10.0;
3373 if (seek_by_bytes) {
3375 if (pos < 0 && cur_stream->video_stream >= 0)
3376 pos = frame_queue_last_pos(&cur_stream->pictq);
3377 if (pos < 0 && cur_stream->audio_stream >= 0)
3378 pos = frame_queue_last_pos(&cur_stream->sampq);
3380 pos = avio_tell(cur_stream->ic->pb);
3381 if (cur_stream->ic->bit_rate)
3382 incr *= cur_stream->ic->bit_rate / 8.0;
3386 stream_seek(cur_stream, pos, incr, 1);
3388 pos = get_master_clock(cur_stream);
3390 pos = (double)cur_stream->seek_pos / AV_TIME_BASE;
3392 if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE)
3393 pos = cur_stream->ic->start_time / (double)AV_TIME_BASE;
3394 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
3401 case SDL_MOUSEBUTTONDOWN:
3402 if (exit_on_mousedown) {
3403 do_exit(cur_stream);
3406 if (event.button.button == SDL_BUTTON_LEFT) {
3407 static int64_t last_mouse_left_click = 0;
3408 if (av_gettime_relative() - last_mouse_left_click <= 500000) {
3409 toggle_full_screen(cur_stream);
3410 cur_stream->force_refresh = 1;
3411 last_mouse_left_click = 0;
3413 last_mouse_left_click = av_gettime_relative();
3416 case SDL_MOUSEMOTION:
3417 if (cursor_hidden) {
3421 cursor_last_shown = av_gettime_relative();
3422 if (event.type == SDL_MOUSEBUTTONDOWN) {
3423 if (event.button.button != SDL_BUTTON_RIGHT)
3427 if (!(event.motion.state & SDL_BUTTON_RMASK))
3431 if (seek_by_bytes || cur_stream->ic->duration <= 0) {
3432 uint64_t size = avio_size(cur_stream->ic->pb);
3433 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
3437 int tns, thh, tmm, tss;
3438 tns = cur_stream->ic->duration / 1000000LL;
3440 tmm = (tns % 3600) / 60;
3442 frac = x / cur_stream->width;
3445 mm = (ns % 3600) / 60;
3447 av_log(NULL, AV_LOG_INFO,
3448 "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
3449 hh, mm, ss, thh, tmm, tss);
3450 ts = frac * cur_stream->ic->duration;
3451 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
3452 ts += cur_stream->ic->start_time;
3453 stream_seek(cur_stream, ts, 0, 0);
3456 case SDL_WINDOWEVENT:
3457 switch (event.window.event) {
3458 case SDL_WINDOWEVENT_SIZE_CHANGED:
3459 screen_width = cur_stream->width = event.window.data1;
3460 screen_height = cur_stream->height = event.window.data2;
3461 if (cur_stream->vis_texture) {
3462 SDL_DestroyTexture(cur_stream->vis_texture);
3463 cur_stream->vis_texture = NULL;
3465 case SDL_WINDOWEVENT_EXPOSED:
3466 cur_stream->force_refresh = 1;
3471 do_exit(cur_stream);
3479 static int opt_frame_size(void *optctx, const char *opt, const char *arg)
3481 av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
3482 return opt_default(NULL, "video_size", arg);
3485 static int opt_width(void *optctx, const char *opt, const char *arg)
3487 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3491 static int opt_height(void *optctx, const char *opt, const char *arg)
3493 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
3497 static int opt_format(void *optctx, const char *opt, const char *arg)
3499 file_iformat = av_find_input_format(arg);
3500 if (!file_iformat) {
3501 av_log(NULL, AV_LOG_FATAL, "Unknown input format: %s\n", arg);
3502 return AVERROR(EINVAL);
3507 static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
3509 av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
3510 return opt_default(NULL, "pixel_format", arg);
3513 static int opt_sync(void *optctx, const char *opt, const char *arg)
3515 if (!strcmp(arg, "audio"))
3516 av_sync_type = AV_SYNC_AUDIO_MASTER;
3517 else if (!strcmp(arg, "video"))
3518 av_sync_type = AV_SYNC_VIDEO_MASTER;
3519 else if (!strcmp(arg, "ext"))
3520 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
3522 av_log(NULL, AV_LOG_ERROR, "Unknown value for %s: %s\n", opt, arg);
3528 static int opt_seek(void *optctx, const char *opt, const char *arg)
3530 start_time = parse_time_or_die(opt, arg, 1);
3534 static int opt_duration(void *optctx, const char *opt, const char *arg)
3536 duration = parse_time_or_die(opt, arg, 1);
3540 static int opt_show_mode(void *optctx, const char *opt, const char *arg)
3542 show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
3543 !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
3544 !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
3545 parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
3549 static void opt_input_file(void *optctx, const char *filename)
3551 if (input_filename) {
3552 av_log(NULL, AV_LOG_FATAL,
3553 "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3554 filename, input_filename);
3557 if (!strcmp(filename, "-"))
3559 input_filename = filename;
3562 static int opt_codec(void *optctx, const char *opt, const char *arg)
3564 const char *spec = strchr(opt, ':');
3566 av_log(NULL, AV_LOG_ERROR,
3567 "No media specifier was specified in '%s' in option '%s'\n",
3569 return AVERROR(EINVAL);
3573 case 'a' : audio_codec_name = arg; break;
3574 case 's' : subtitle_codec_name = arg; break;
3575 case 'v' : video_codec_name = arg; break;
3577 av_log(NULL, AV_LOG_ERROR,
3578 "Invalid media specifier '%s' in option '%s'\n", spec, opt);
3579 return AVERROR(EINVAL);
3586 static const OptionDef options[] = {
3587 CMDUTILS_COMMON_OPTIONS
3588 { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
3589 { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
3590 { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
3591 { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
3592 { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
3593 { "vn", OPT_BOOL, { &video_disable }, "disable video" },
3594 { "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" },
3595 { "ast", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_specifier" },
3596 { "vst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_specifier" },
3597 { "sst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_specifier" },
3598 { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
3599 { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" },
3600 { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
3601 { "seek_interval", OPT_FLOAT | HAS_ARG, { &seek_interval }, "set seek interval for left/right keys, in seconds", "seconds" },
3602 { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
3603 { "noborder", OPT_BOOL, { &borderless }, "borderless window" },
3604 { "alwaysontop", OPT_BOOL, { &alwaysontop }, "window always on top" },
3605 { "volume", OPT_INT | HAS_ARG, { &startup_volume}, "set startup volume 0=min 100=max", "volume" },
3606 { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
3607 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
3608 { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
3609 { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
3610 { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
3611 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3612 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" },
3613 { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
3614 { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" },
3615 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
3616 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
3617 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
3618 { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
3619 { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
3620 { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
3621 { "left", OPT_INT | HAS_ARG | OPT_EXPERT, { &screen_left }, "set the x position for the left of the window", "x pos" },
3622 { "top", OPT_INT | HAS_ARG | OPT_EXPERT, { &screen_top }, "set the y position for the top of the window", "y pos" },
3624 { "vf", OPT_EXPERT | HAS_ARG, { .func_arg = opt_add_vfilter }, "set video filters", "filter_graph" },
3625 { "af", OPT_STRING | HAS_ARG, { &afilters }, "set audio filters", "filter_graph" },
3627 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
3628 { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
3629 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" },
3630 { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"},
3631 { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" },
3632 { "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &audio_codec_name }, "force audio decoder", "decoder_name" },
3633 { "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" },
3634 { "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &video_codec_name }, "force video decoder", "decoder_name" },
3635 { "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" },
3636 { "find_stream_info", OPT_BOOL | OPT_INPUT | OPT_EXPERT, { &find_stream_info },
3637 "read and decode the streams to fill missing information with heuristics" },
3638 { "filter_threads", HAS_ARG | OPT_INT | OPT_EXPERT, { &filter_nbthreads }, "number of filter threads per graph" },
3642 static void show_usage(void)
3644 av_log(NULL, AV_LOG_INFO, "Simple media player\n");
3645 av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
3646 av_log(NULL, AV_LOG_INFO, "\n");
3649 void show_help_default(const char *opt, const char *arg)
3651 av_log_set_callback(log_callback_help);
3653 show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
3654 show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
3656 show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3657 show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3658 #if !CONFIG_AVFILTER
3659 show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
3661 show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
3663 printf("\nWhile playing:\n"
3665 "f toggle full screen\n"
3668 "9, 0 decrease and increase volume respectively\n"
3669 "/, * decrease and increase volume respectively\n"
3670 "a cycle audio channel in the current program\n"
3671 "v cycle video channel\n"
3672 "t cycle subtitle channel in the current program\n"
3674 "w cycle video filters or show modes\n"
3675 "s activate frame-step mode\n"
3676 "left/right seek backward/forward 10 seconds or to custom interval if -seek_interval is set\n"
3677 "down/up seek backward/forward 1 minute\n"
3678 "page down/page up seek backward/forward 10 minutes\n"
3679 "right mouse click seek to percentage in file corresponding to fraction of width\n"
3680 "left double-click toggle full screen\n"
3684 /* Called from the main */
3685 int main(int argc, char **argv)
3692 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3693 parse_loglevel(argc, argv, options);
3695 /* register all codecs, demux and protocols */
3697 avdevice_register_all();
3699 avformat_network_init();
3703 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
3704 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
3706 show_banner(argc, argv, options);
3708 parse_options(NULL, argc, argv, options, opt_input_file);
3710 if (!input_filename) {
3712 av_log(NULL, AV_LOG_FATAL, "An input file must be specified\n");
3713 av_log(NULL, AV_LOG_FATAL,
3714 "Use -h to get full help or, even better, run 'man %s'\n", program_name);
3718 if (display_disable) {
3721 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3723 flags &= ~SDL_INIT_AUDIO;
3725 /* Try to work around an occasional ALSA buffer underflow issue when the
3726 * period size is NPOT due to ALSA resampling by forcing the buffer size. */
3727 if (!SDL_getenv("SDL_AUDIO_ALSA_SET_BUFFER_SIZE"))
3728 SDL_setenv("SDL_AUDIO_ALSA_SET_BUFFER_SIZE","1", 1);
3730 if (display_disable)
3731 flags &= ~SDL_INIT_VIDEO;
3732 if (SDL_Init (flags)) {
3733 av_log(NULL, AV_LOG_FATAL, "Could not initialize SDL - %s\n", SDL_GetError());
3734 av_log(NULL, AV_LOG_FATAL, "(Did you set the DISPLAY variable?)\n");
3738 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3739 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3741 av_init_packet(&flush_pkt);
3742 flush_pkt.data = (uint8_t *)&flush_pkt;
3744 if (!display_disable) {
3745 int flags = SDL_WINDOW_HIDDEN;
3747 #if SDL_VERSION_ATLEAST(2,0,5)
3748 flags |= SDL_WINDOW_ALWAYS_ON_TOP;
3750 av_log(NULL, AV_LOG_WARNING, "Your SDL version doesn't support SDL_WINDOW_ALWAYS_ON_TOP. Feature will be inactive.\n");
3753 flags |= SDL_WINDOW_BORDERLESS;
3755 flags |= SDL_WINDOW_RESIZABLE;
3756 window = SDL_CreateWindow(program_name, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, default_width, default_height, flags);
3757 SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
3759 renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
3761 av_log(NULL, AV_LOG_WARNING, "Failed to initialize a hardware accelerated renderer: %s\n", SDL_GetError());
3762 renderer = SDL_CreateRenderer(window, -1, 0);
3765 if (!SDL_GetRendererInfo(renderer, &renderer_info))
3766 av_log(NULL, AV_LOG_VERBOSE, "Initialized %s renderer.\n", renderer_info.name);
3769 if (!window || !renderer || !renderer_info.num_texture_formats) {
3770 av_log(NULL, AV_LOG_FATAL, "Failed to create window or renderer: %s", SDL_GetError());
3775 is = stream_open(input_filename, file_iformat);
3777 av_log(NULL, AV_LOG_FATAL, "Failed to initialize VideoState!\n");