mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-28 20:53:54 +02:00
1dd3c473a2
Previously ffplay expected SDL_AudioOpen to provide the requested sample rate and channel number. This is no longer a requirement because this patch replaces the audio convert function with libswresample's swr_convert which is capable of handling different sample formats, sample rates and different number of channels and different channel layouts. The patch also removes the hardcoded 16bit samples assumption and uses av_get_bytes_per_sample almost everywhere. The only exceptions are the update_sample_display and video_audio_display functions, it seemed too much of a headache to make them generic. We also fix a tiny bug in sdl_audio_callback, we ensure that the number of bytes when we put silence in the buffer is a multiple of the frame size.
3167 lines
102 KiB
C
3167 lines
102 KiB
C
/*
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* ffplay : Simple Media Player based on the FFmpeg libraries
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include <inttypes.h>
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#include <math.h>
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#include <limits.h>
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#include "libavutil/avstring.h"
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#include "libavutil/colorspace.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/dict.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/samplefmt.h"
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#include "libavutil/avassert.h"
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#include "libavformat/avformat.h"
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#include "libavdevice/avdevice.h"
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#include "libswscale/swscale.h"
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#include "libavcodec/audioconvert.h"
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#include "libavutil/opt.h"
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#include "libavcodec/avfft.h"
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#include "libswresample/swresample.h"
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#if CONFIG_AVFILTER
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# include "libavfilter/avcodec.h"
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# include "libavfilter/avfilter.h"
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# include "libavfilter/avfiltergraph.h"
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# include "libavfilter/buffersink.h"
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#endif
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#include <SDL.h>
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#include <SDL_thread.h>
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#include "cmdutils.h"
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#include <unistd.h>
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#include <assert.h>
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const char program_name[] = "ffplay";
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const int program_birth_year = 2003;
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#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
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#define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
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#define MIN_FRAMES 5
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/* SDL audio buffer size, in samples. Should be small to have precise
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A/V sync as SDL does not have hardware buffer fullness info. */
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#define SDL_AUDIO_BUFFER_SIZE 1024
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/* no AV sync correction is done if below the AV sync threshold */
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#define AV_SYNC_THRESHOLD 0.01
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/* no AV correction is done if too big error */
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#define AV_NOSYNC_THRESHOLD 10.0
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#define FRAME_SKIP_FACTOR 0.05
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/* maximum audio speed change to get correct sync */
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#define SAMPLE_CORRECTION_PERCENT_MAX 10
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/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
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#define AUDIO_DIFF_AVG_NB 20
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/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
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#define SAMPLE_ARRAY_SIZE (2*65536)
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static int sws_flags = SWS_BICUBIC;
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typedef struct PacketQueue {
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AVPacketList *first_pkt, *last_pkt;
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int nb_packets;
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int size;
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int abort_request;
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SDL_mutex *mutex;
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SDL_cond *cond;
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} PacketQueue;
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#define VIDEO_PICTURE_QUEUE_SIZE 2
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#define SUBPICTURE_QUEUE_SIZE 4
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typedef struct VideoPicture {
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double pts; ///<presentation time stamp for this picture
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double target_clock; ///<av_gettime() time at which this should be displayed ideally
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double duration; ///<expected duration of the frame
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int64_t pos; ///<byte position in file
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SDL_Overlay *bmp;
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int width, height; /* source height & width */
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int allocated;
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enum PixelFormat pix_fmt;
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#if CONFIG_AVFILTER
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AVFilterBufferRef *picref;
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#endif
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} VideoPicture;
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typedef struct SubPicture {
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double pts; /* presentation time stamp for this picture */
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AVSubtitle sub;
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} SubPicture;
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enum {
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AV_SYNC_AUDIO_MASTER, /* default choice */
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AV_SYNC_VIDEO_MASTER,
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AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
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};
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typedef struct VideoState {
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SDL_Thread *read_tid;
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SDL_Thread *video_tid;
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SDL_Thread *refresh_tid;
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AVInputFormat *iformat;
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int no_background;
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int abort_request;
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int paused;
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int last_paused;
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int seek_req;
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int seek_flags;
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int64_t seek_pos;
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int64_t seek_rel;
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int read_pause_return;
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AVFormatContext *ic;
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int audio_stream;
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int av_sync_type;
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double external_clock; /* external clock base */
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int64_t external_clock_time;
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double audio_clock;
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double audio_diff_cum; /* used for AV difference average computation */
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double audio_diff_avg_coef;
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double audio_diff_threshold;
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int audio_diff_avg_count;
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AVStream *audio_st;
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PacketQueue audioq;
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int audio_hw_buf_size;
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/* samples output by the codec. we reserve more space for avsync
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compensation, resampling and format conversion */
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DECLARE_ALIGNED(16,uint8_t,audio_buf1)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
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DECLARE_ALIGNED(16,uint8_t,audio_buf2)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
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uint8_t *audio_buf;
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unsigned int audio_buf_size; /* in bytes */
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int audio_buf_index; /* in bytes */
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int audio_write_buf_size;
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AVPacket audio_pkt_temp;
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AVPacket audio_pkt;
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enum AVSampleFormat audio_src_fmt;
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enum AVSampleFormat audio_tgt_fmt;
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int audio_src_channels;
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int audio_tgt_channels;
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int64_t audio_src_channel_layout;
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int64_t audio_tgt_channel_layout;
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int audio_src_freq;
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int audio_tgt_freq;
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struct SwrContext *swr_ctx;
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double audio_current_pts;
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double audio_current_pts_drift;
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enum ShowMode {
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SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
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} show_mode;
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int16_t sample_array[SAMPLE_ARRAY_SIZE];
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int sample_array_index;
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int last_i_start;
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RDFTContext *rdft;
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int rdft_bits;
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FFTSample *rdft_data;
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int xpos;
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SDL_Thread *subtitle_tid;
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int subtitle_stream;
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int subtitle_stream_changed;
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AVStream *subtitle_st;
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PacketQueue subtitleq;
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SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
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int subpq_size, subpq_rindex, subpq_windex;
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SDL_mutex *subpq_mutex;
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SDL_cond *subpq_cond;
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double frame_timer;
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double frame_last_pts;
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double frame_last_delay;
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double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
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int video_stream;
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AVStream *video_st;
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PacketQueue videoq;
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double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
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double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
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int64_t video_current_pos; ///<current displayed file pos
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VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
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int pictq_size, pictq_rindex, pictq_windex;
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SDL_mutex *pictq_mutex;
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SDL_cond *pictq_cond;
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#if !CONFIG_AVFILTER
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struct SwsContext *img_convert_ctx;
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#endif
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char filename[1024];
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int width, height, xleft, ytop;
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int step;
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#if CONFIG_AVFILTER
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AVFilterContext *out_video_filter; ///<the last filter in the video chain
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#endif
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float skip_frames;
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float skip_frames_index;
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int refresh;
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} VideoState;
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static int opt_help(const char *opt, const char *arg);
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/* options specified by the user */
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static AVInputFormat *file_iformat;
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static const char *input_filename;
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static const char *window_title;
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static int fs_screen_width;
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static int fs_screen_height;
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static int screen_width = 0;
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static int screen_height = 0;
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static int audio_disable;
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static int video_disable;
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static int wanted_stream[AVMEDIA_TYPE_NB]={
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[AVMEDIA_TYPE_AUDIO]=-1,
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[AVMEDIA_TYPE_VIDEO]=-1,
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[AVMEDIA_TYPE_SUBTITLE]=-1,
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};
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static int seek_by_bytes=-1;
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static int display_disable;
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static int show_status = 1;
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static int av_sync_type = AV_SYNC_AUDIO_MASTER;
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static int64_t start_time = AV_NOPTS_VALUE;
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static int64_t duration = AV_NOPTS_VALUE;
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static int workaround_bugs = 1;
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static int fast = 0;
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static int genpts = 0;
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static int lowres = 0;
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static int idct = FF_IDCT_AUTO;
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static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
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static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
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static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
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static int error_recognition = FF_ER_CAREFUL;
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static int error_concealment = 3;
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static int decoder_reorder_pts= -1;
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static int autoexit;
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static int exit_on_keydown;
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static int exit_on_mousedown;
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static int loop=1;
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static int framedrop=-1;
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static enum ShowMode show_mode = SHOW_MODE_NONE;
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static const char *audio_codec_name;
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static const char *subtitle_codec_name;
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static const char *video_codec_name;
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static int rdftspeed=20;
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#if CONFIG_AVFILTER
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static char *vfilters = NULL;
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#endif
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/* current context */
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static int is_full_screen;
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static int64_t audio_callback_time;
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static AVPacket flush_pkt;
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#define FF_ALLOC_EVENT (SDL_USEREVENT)
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#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
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#define FF_QUIT_EVENT (SDL_USEREVENT + 2)
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static SDL_Surface *screen;
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void exit_program(int ret)
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{
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exit(ret);
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}
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static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
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{
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AVPacketList *pkt1;
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/* duplicate the packet */
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if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
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return -1;
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pkt1 = av_malloc(sizeof(AVPacketList));
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if (!pkt1)
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return -1;
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pkt1->pkt = *pkt;
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pkt1->next = NULL;
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SDL_LockMutex(q->mutex);
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if (!q->last_pkt)
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q->first_pkt = pkt1;
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else
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q->last_pkt->next = pkt1;
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q->last_pkt = pkt1;
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q->nb_packets++;
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q->size += pkt1->pkt.size + sizeof(*pkt1);
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/* XXX: should duplicate packet data in DV case */
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SDL_CondSignal(q->cond);
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SDL_UnlockMutex(q->mutex);
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return 0;
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}
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/* packet queue handling */
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static void packet_queue_init(PacketQueue *q)
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{
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memset(q, 0, sizeof(PacketQueue));
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q->mutex = SDL_CreateMutex();
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q->cond = SDL_CreateCond();
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packet_queue_put(q, &flush_pkt);
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}
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static void packet_queue_flush(PacketQueue *q)
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{
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AVPacketList *pkt, *pkt1;
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SDL_LockMutex(q->mutex);
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for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
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pkt1 = pkt->next;
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av_free_packet(&pkt->pkt);
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av_freep(&pkt);
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}
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q->last_pkt = NULL;
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q->first_pkt = NULL;
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q->nb_packets = 0;
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q->size = 0;
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SDL_UnlockMutex(q->mutex);
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}
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static void packet_queue_end(PacketQueue *q)
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{
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packet_queue_flush(q);
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SDL_DestroyMutex(q->mutex);
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SDL_DestroyCond(q->cond);
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}
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static void packet_queue_abort(PacketQueue *q)
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{
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SDL_LockMutex(q->mutex);
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q->abort_request = 1;
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SDL_CondSignal(q->cond);
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SDL_UnlockMutex(q->mutex);
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}
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/* return < 0 if aborted, 0 if no packet and > 0 if packet. */
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static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
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{
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AVPacketList *pkt1;
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int ret;
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SDL_LockMutex(q->mutex);
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for(;;) {
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if (q->abort_request) {
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ret = -1;
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break;
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}
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pkt1 = q->first_pkt;
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if (pkt1) {
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q->first_pkt = pkt1->next;
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if (!q->first_pkt)
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q->last_pkt = NULL;
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q->nb_packets--;
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q->size -= pkt1->pkt.size + sizeof(*pkt1);
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*pkt = pkt1->pkt;
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av_free(pkt1);
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ret = 1;
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break;
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} else if (!block) {
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ret = 0;
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break;
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} else {
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SDL_CondWait(q->cond, q->mutex);
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}
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}
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SDL_UnlockMutex(q->mutex);
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return ret;
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}
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static inline void fill_rectangle(SDL_Surface *screen,
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int x, int y, int w, int h, int color)
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{
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SDL_Rect rect;
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rect.x = x;
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rect.y = y;
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rect.w = w;
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rect.h = h;
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SDL_FillRect(screen, &rect, color);
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}
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#define ALPHA_BLEND(a, oldp, newp, s)\
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((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
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#define RGBA_IN(r, g, b, a, s)\
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{\
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unsigned int v = ((const uint32_t *)(s))[0];\
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a = (v >> 24) & 0xff;\
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r = (v >> 16) & 0xff;\
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g = (v >> 8) & 0xff;\
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b = v & 0xff;\
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}
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#define YUVA_IN(y, u, v, a, s, pal)\
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{\
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unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
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a = (val >> 24) & 0xff;\
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y = (val >> 16) & 0xff;\
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u = (val >> 8) & 0xff;\
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v = val & 0xff;\
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}
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#define YUVA_OUT(d, y, u, v, a)\
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{\
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((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
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}
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#define BPP 1
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static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
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{
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int wrap, wrap3, width2, skip2;
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int y, u, v, a, u1, v1, a1, w, h;
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uint8_t *lum, *cb, *cr;
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const uint8_t *p;
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const uint32_t *pal;
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int dstx, dsty, dstw, dsth;
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dstw = av_clip(rect->w, 0, imgw);
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dsth = av_clip(rect->h, 0, imgh);
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dstx = av_clip(rect->x, 0, imgw - dstw);
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dsty = av_clip(rect->y, 0, imgh - dsth);
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lum = dst->data[0] + dsty * dst->linesize[0];
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cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
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cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
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width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
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skip2 = dstx >> 1;
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wrap = dst->linesize[0];
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wrap3 = rect->pict.linesize[0];
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p = rect->pict.data[0];
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pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
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if (dsty & 1) {
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lum += dstx;
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cb += skip2;
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cr += skip2;
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if (dstx & 1) {
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YUVA_IN(y, u, v, a, p, pal);
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lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
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cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
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cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
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cb++;
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cr++;
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lum++;
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p += BPP;
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}
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for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
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YUVA_IN(y, u, v, a, p, pal);
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u1 = u;
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v1 = v;
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a1 = a;
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lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
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|
|
YUVA_IN(y, u, v, a, p + BPP, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
|
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
|
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
|
|
cb++;
|
|
cr++;
|
|
p += 2 * BPP;
|
|
lum += 2;
|
|
}
|
|
if (w) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
|
|
cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
|
|
p++;
|
|
lum++;
|
|
}
|
|
p += wrap3 - dstw * BPP;
|
|
lum += wrap - dstw - dstx;
|
|
cb += dst->linesize[1] - width2 - skip2;
|
|
cr += dst->linesize[2] - width2 - skip2;
|
|
}
|
|
for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
|
|
lum += dstx;
|
|
cb += skip2;
|
|
cr += skip2;
|
|
|
|
if (dstx & 1) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 = u;
|
|
v1 = v;
|
|
a1 = a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
p += wrap3;
|
|
lum += wrap;
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
|
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
|
|
cb++;
|
|
cr++;
|
|
p += -wrap3 + BPP;
|
|
lum += -wrap + 1;
|
|
}
|
|
for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 = u;
|
|
v1 = v;
|
|
a1 = a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
|
|
YUVA_IN(y, u, v, a, p + BPP, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
|
|
p += wrap3;
|
|
lum += wrap;
|
|
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
|
|
YUVA_IN(y, u, v, a, p + BPP, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
|
|
|
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
|
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
|
|
|
|
cb++;
|
|
cr++;
|
|
p += -wrap3 + 2 * BPP;
|
|
lum += -wrap + 2;
|
|
}
|
|
if (w) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 = u;
|
|
v1 = v;
|
|
a1 = a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
p += wrap3;
|
|
lum += wrap;
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
|
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
|
|
cb++;
|
|
cr++;
|
|
p += -wrap3 + BPP;
|
|
lum += -wrap + 1;
|
|
}
|
|
p += wrap3 + (wrap3 - dstw * BPP);
|
|
lum += wrap + (wrap - dstw - dstx);
|
|
cb += dst->linesize[1] - width2 - skip2;
|
|
cr += dst->linesize[2] - width2 - skip2;
|
|
}
|
|
/* handle odd height */
|
|
if (h) {
|
|
lum += dstx;
|
|
cb += skip2;
|
|
cr += skip2;
|
|
|
|
if (dstx & 1) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
|
|
cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
|
|
cb++;
|
|
cr++;
|
|
lum++;
|
|
p += BPP;
|
|
}
|
|
for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 = u;
|
|
v1 = v;
|
|
a1 = a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
|
|
YUVA_IN(y, u, v, a, p + BPP, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
|
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
|
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
|
|
cb++;
|
|
cr++;
|
|
p += 2 * BPP;
|
|
lum += 2;
|
|
}
|
|
if (w) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
|
|
cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void free_subpicture(SubPicture *sp)
|
|
{
|
|
avsubtitle_free(&sp->sub);
|
|
}
|
|
|
|
static void video_image_display(VideoState *is)
|
|
{
|
|
VideoPicture *vp;
|
|
SubPicture *sp;
|
|
AVPicture pict;
|
|
float aspect_ratio;
|
|
int width, height, x, y;
|
|
SDL_Rect rect;
|
|
int i;
|
|
|
|
vp = &is->pictq[is->pictq_rindex];
|
|
if (vp->bmp) {
|
|
#if CONFIG_AVFILTER
|
|
if (vp->picref->video->sample_aspect_ratio.num == 0)
|
|
aspect_ratio = 0;
|
|
else
|
|
aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio);
|
|
#else
|
|
|
|
/* XXX: use variable in the frame */
|
|
if (is->video_st->sample_aspect_ratio.num)
|
|
aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
|
|
else if (is->video_st->codec->sample_aspect_ratio.num)
|
|
aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
|
|
else
|
|
aspect_ratio = 0;
|
|
#endif
|
|
if (aspect_ratio <= 0.0)
|
|
aspect_ratio = 1.0;
|
|
aspect_ratio *= (float)vp->width / (float)vp->height;
|
|
|
|
if (is->subtitle_st) {
|
|
if (is->subpq_size > 0) {
|
|
sp = &is->subpq[is->subpq_rindex];
|
|
|
|
if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
|
|
SDL_LockYUVOverlay (vp->bmp);
|
|
|
|
pict.data[0] = vp->bmp->pixels[0];
|
|
pict.data[1] = vp->bmp->pixels[2];
|
|
pict.data[2] = vp->bmp->pixels[1];
|
|
|
|
pict.linesize[0] = vp->bmp->pitches[0];
|
|
pict.linesize[1] = vp->bmp->pitches[2];
|
|
pict.linesize[2] = vp->bmp->pitches[1];
|
|
|
|
for (i = 0; i < sp->sub.num_rects; i++)
|
|
blend_subrect(&pict, sp->sub.rects[i],
|
|
vp->bmp->w, vp->bmp->h);
|
|
|
|
SDL_UnlockYUVOverlay (vp->bmp);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* XXX: we suppose the screen has a 1.0 pixel ratio */
|
|
height = is->height;
|
|
width = ((int)rint(height * aspect_ratio)) & ~1;
|
|
if (width > is->width) {
|
|
width = is->width;
|
|
height = ((int)rint(width / aspect_ratio)) & ~1;
|
|
}
|
|
x = (is->width - width) / 2;
|
|
y = (is->height - height) / 2;
|
|
is->no_background = 0;
|
|
rect.x = is->xleft + x;
|
|
rect.y = is->ytop + y;
|
|
rect.w = FFMAX(width, 1);
|
|
rect.h = FFMAX(height, 1);
|
|
SDL_DisplayYUVOverlay(vp->bmp, &rect);
|
|
}
|
|
}
|
|
|
|
static inline int compute_mod(int a, int b)
|
|
{
|
|
return a < 0 ? a%b + b : a%b;
|
|
}
|
|
|
|
static void video_audio_display(VideoState *s)
|
|
{
|
|
int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
|
|
int ch, channels, h, h2, bgcolor, fgcolor;
|
|
int16_t time_diff;
|
|
int rdft_bits, nb_freq;
|
|
|
|
for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
|
|
;
|
|
nb_freq= 1<<(rdft_bits-1);
|
|
|
|
/* compute display index : center on currently output samples */
|
|
channels = s->audio_tgt_channels;
|
|
nb_display_channels = channels;
|
|
if (!s->paused) {
|
|
int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
|
|
n = 2 * channels;
|
|
delay = s->audio_write_buf_size;
|
|
delay /= n;
|
|
|
|
/* to be more precise, we take into account the time spent since
|
|
the last buffer computation */
|
|
if (audio_callback_time) {
|
|
time_diff = av_gettime() - audio_callback_time;
|
|
delay -= (time_diff * s->audio_tgt_freq) / 1000000;
|
|
}
|
|
|
|
delay += 2*data_used;
|
|
if (delay < data_used)
|
|
delay = data_used;
|
|
|
|
i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
|
|
if (s->show_mode == SHOW_MODE_WAVES) {
|
|
h= INT_MIN;
|
|
for(i=0; i<1000; i+=channels){
|
|
int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
|
|
int a= s->sample_array[idx];
|
|
int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
|
|
int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
|
|
int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
|
|
int score= a-d;
|
|
if(h<score && (b^c)<0){
|
|
h= score;
|
|
i_start= idx;
|
|
}
|
|
}
|
|
}
|
|
|
|
s->last_i_start = i_start;
|
|
} else {
|
|
i_start = s->last_i_start;
|
|
}
|
|
|
|
bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
|
|
if (s->show_mode == SHOW_MODE_WAVES) {
|
|
fill_rectangle(screen,
|
|
s->xleft, s->ytop, s->width, s->height,
|
|
bgcolor);
|
|
|
|
fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
|
|
|
|
/* total height for one channel */
|
|
h = s->height / nb_display_channels;
|
|
/* graph height / 2 */
|
|
h2 = (h * 9) / 20;
|
|
for(ch = 0;ch < nb_display_channels; ch++) {
|
|
i = i_start + ch;
|
|
y1 = s->ytop + ch * h + (h / 2); /* position of center line */
|
|
for(x = 0; x < s->width; x++) {
|
|
y = (s->sample_array[i] * h2) >> 15;
|
|
if (y < 0) {
|
|
y = -y;
|
|
ys = y1 - y;
|
|
} else {
|
|
ys = y1;
|
|
}
|
|
fill_rectangle(screen,
|
|
s->xleft + x, ys, 1, y,
|
|
fgcolor);
|
|
i += channels;
|
|
if (i >= SAMPLE_ARRAY_SIZE)
|
|
i -= SAMPLE_ARRAY_SIZE;
|
|
}
|
|
}
|
|
|
|
fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
|
|
|
|
for(ch = 1;ch < nb_display_channels; ch++) {
|
|
y = s->ytop + ch * h;
|
|
fill_rectangle(screen,
|
|
s->xleft, y, s->width, 1,
|
|
fgcolor);
|
|
}
|
|
SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
|
|
}else{
|
|
nb_display_channels= FFMIN(nb_display_channels, 2);
|
|
if(rdft_bits != s->rdft_bits){
|
|
av_rdft_end(s->rdft);
|
|
av_free(s->rdft_data);
|
|
s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
|
|
s->rdft_bits= rdft_bits;
|
|
s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
|
|
}
|
|
{
|
|
FFTSample *data[2];
|
|
for(ch = 0;ch < nb_display_channels; ch++) {
|
|
data[ch] = s->rdft_data + 2*nb_freq*ch;
|
|
i = i_start + ch;
|
|
for(x = 0; x < 2*nb_freq; x++) {
|
|
double w= (x-nb_freq)*(1.0/nb_freq);
|
|
data[ch][x]= s->sample_array[i]*(1.0-w*w);
|
|
i += channels;
|
|
if (i >= SAMPLE_ARRAY_SIZE)
|
|
i -= SAMPLE_ARRAY_SIZE;
|
|
}
|
|
av_rdft_calc(s->rdft, data[ch]);
|
|
}
|
|
//least efficient way to do this, we should of course directly access it but its more than fast enough
|
|
for(y=0; y<s->height; y++){
|
|
double w= 1/sqrt(nb_freq);
|
|
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]));
|
|
int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
|
|
+ data[1][2*y+1]*data[1][2*y+1])) : a;
|
|
a= FFMIN(a,255);
|
|
b= FFMIN(b,255);
|
|
fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
|
|
|
|
fill_rectangle(screen,
|
|
s->xpos, s->height-y, 1, 1,
|
|
fgcolor);
|
|
}
|
|
}
|
|
SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
|
|
s->xpos++;
|
|
if(s->xpos >= s->width)
|
|
s->xpos= s->xleft;
|
|
}
|
|
}
|
|
|
|
static void stream_close(VideoState *is)
|
|
{
|
|
VideoPicture *vp;
|
|
int i;
|
|
/* XXX: use a special url_shutdown call to abort parse cleanly */
|
|
is->abort_request = 1;
|
|
SDL_WaitThread(is->read_tid, NULL);
|
|
SDL_WaitThread(is->refresh_tid, NULL);
|
|
|
|
/* free all pictures */
|
|
for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
|
|
vp = &is->pictq[i];
|
|
#if CONFIG_AVFILTER
|
|
if (vp->picref) {
|
|
avfilter_unref_buffer(vp->picref);
|
|
vp->picref = NULL;
|
|
}
|
|
#endif
|
|
if (vp->bmp) {
|
|
SDL_FreeYUVOverlay(vp->bmp);
|
|
vp->bmp = NULL;
|
|
}
|
|
}
|
|
SDL_DestroyMutex(is->pictq_mutex);
|
|
SDL_DestroyCond(is->pictq_cond);
|
|
SDL_DestroyMutex(is->subpq_mutex);
|
|
SDL_DestroyCond(is->subpq_cond);
|
|
#if !CONFIG_AVFILTER
|
|
if (is->img_convert_ctx)
|
|
sws_freeContext(is->img_convert_ctx);
|
|
#endif
|
|
av_free(is);
|
|
}
|
|
|
|
static void do_exit(VideoState *is)
|
|
{
|
|
if (is) {
|
|
stream_close(is);
|
|
}
|
|
av_lockmgr_register(NULL);
|
|
uninit_opts();
|
|
#if CONFIG_AVFILTER
|
|
avfilter_uninit();
|
|
#endif
|
|
if (show_status)
|
|
printf("\n");
|
|
SDL_Quit();
|
|
av_log(NULL, AV_LOG_QUIET, "%s", "");
|
|
exit(0);
|
|
}
|
|
|
|
static int video_open(VideoState *is){
|
|
int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
|
|
int w,h;
|
|
|
|
if(is_full_screen) flags |= SDL_FULLSCREEN;
|
|
else flags |= SDL_RESIZABLE;
|
|
|
|
if (is_full_screen && fs_screen_width) {
|
|
w = fs_screen_width;
|
|
h = fs_screen_height;
|
|
} else if(!is_full_screen && screen_width){
|
|
w = screen_width;
|
|
h = screen_height;
|
|
#if CONFIG_AVFILTER
|
|
}else if (is->out_video_filter && is->out_video_filter->inputs[0]){
|
|
w = is->out_video_filter->inputs[0]->w;
|
|
h = is->out_video_filter->inputs[0]->h;
|
|
#else
|
|
}else if (is->video_st && is->video_st->codec->width){
|
|
w = is->video_st->codec->width;
|
|
h = is->video_st->codec->height;
|
|
#endif
|
|
} else {
|
|
w = 640;
|
|
h = 480;
|
|
}
|
|
if(screen && is->width == screen->w && screen->w == w
|
|
&& is->height== screen->h && screen->h == h)
|
|
return 0;
|
|
|
|
#ifndef __APPLE__
|
|
screen = SDL_SetVideoMode(w, h, 0, flags);
|
|
#else
|
|
/* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
|
|
screen = SDL_SetVideoMode(w, h, 24, flags);
|
|
#endif
|
|
if (!screen) {
|
|
fprintf(stderr, "SDL: could not set video mode - exiting\n");
|
|
do_exit(is);
|
|
}
|
|
if (!window_title)
|
|
window_title = input_filename;
|
|
SDL_WM_SetCaption(window_title, window_title);
|
|
|
|
is->width = screen->w;
|
|
is->height = screen->h;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* display the current picture, if any */
|
|
static void video_display(VideoState *is)
|
|
{
|
|
if(!screen)
|
|
video_open(is);
|
|
if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
|
|
video_audio_display(is);
|
|
else if (is->video_st)
|
|
video_image_display(is);
|
|
}
|
|
|
|
static int refresh_thread(void *opaque)
|
|
{
|
|
VideoState *is= opaque;
|
|
while(!is->abort_request){
|
|
SDL_Event event;
|
|
event.type = FF_REFRESH_EVENT;
|
|
event.user.data1 = opaque;
|
|
if(!is->refresh){
|
|
is->refresh=1;
|
|
SDL_PushEvent(&event);
|
|
}
|
|
//FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
|
|
usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* get the current audio clock value */
|
|
static double get_audio_clock(VideoState *is)
|
|
{
|
|
if (is->paused) {
|
|
return is->audio_current_pts;
|
|
} else {
|
|
return is->audio_current_pts_drift + av_gettime() / 1000000.0;
|
|
}
|
|
}
|
|
|
|
/* get the current video clock value */
|
|
static double get_video_clock(VideoState *is)
|
|
{
|
|
if (is->paused) {
|
|
return is->video_current_pts;
|
|
} else {
|
|
return is->video_current_pts_drift + av_gettime() / 1000000.0;
|
|
}
|
|
}
|
|
|
|
/* get the current external clock value */
|
|
static double get_external_clock(VideoState *is)
|
|
{
|
|
int64_t ti;
|
|
ti = av_gettime();
|
|
return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
|
|
}
|
|
|
|
/* get the current master clock value */
|
|
static double get_master_clock(VideoState *is)
|
|
{
|
|
double val;
|
|
|
|
if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
|
|
if (is->video_st)
|
|
val = get_video_clock(is);
|
|
else
|
|
val = get_audio_clock(is);
|
|
} else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
|
|
if (is->audio_st)
|
|
val = get_audio_clock(is);
|
|
else
|
|
val = get_video_clock(is);
|
|
} else {
|
|
val = get_external_clock(is);
|
|
}
|
|
return val;
|
|
}
|
|
|
|
/* seek in the stream */
|
|
static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
|
|
{
|
|
if (!is->seek_req) {
|
|
is->seek_pos = pos;
|
|
is->seek_rel = rel;
|
|
is->seek_flags &= ~AVSEEK_FLAG_BYTE;
|
|
if (seek_by_bytes)
|
|
is->seek_flags |= AVSEEK_FLAG_BYTE;
|
|
is->seek_req = 1;
|
|
}
|
|
}
|
|
|
|
/* pause or resume the video */
|
|
static void stream_toggle_pause(VideoState *is)
|
|
{
|
|
if (is->paused) {
|
|
is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
|
|
if(is->read_pause_return != AVERROR(ENOSYS)){
|
|
is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
|
|
}
|
|
is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
|
|
}
|
|
is->paused = !is->paused;
|
|
}
|
|
|
|
static double compute_target_time(double frame_current_pts, VideoState *is)
|
|
{
|
|
double delay, sync_threshold, diff;
|
|
|
|
/* compute nominal delay */
|
|
delay = frame_current_pts - is->frame_last_pts;
|
|
if (delay <= 0 || delay >= 10.0) {
|
|
/* if incorrect delay, use previous one */
|
|
delay = is->frame_last_delay;
|
|
} else {
|
|
is->frame_last_delay = delay;
|
|
}
|
|
is->frame_last_pts = frame_current_pts;
|
|
|
|
/* update delay to follow master synchronisation source */
|
|
if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
|
|
is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
|
|
/* if video is slave, we try to correct big delays by
|
|
duplicating or deleting a frame */
|
|
diff = get_video_clock(is) - get_master_clock(is);
|
|
|
|
/* skip or repeat frame. We take into account the
|
|
delay to compute the threshold. I still don't know
|
|
if it is the best guess */
|
|
sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
|
|
if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
|
|
if (diff <= -sync_threshold)
|
|
delay = 0;
|
|
else if (diff >= sync_threshold)
|
|
delay = 2 * delay;
|
|
}
|
|
}
|
|
is->frame_timer += delay;
|
|
|
|
av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
|
|
delay, frame_current_pts, -diff);
|
|
|
|
return is->frame_timer;
|
|
}
|
|
|
|
/* called to display each frame */
|
|
static void video_refresh(void *opaque)
|
|
{
|
|
VideoState *is = opaque;
|
|
VideoPicture *vp;
|
|
|
|
SubPicture *sp, *sp2;
|
|
|
|
if (is->video_st) {
|
|
retry:
|
|
if (is->pictq_size == 0) {
|
|
//nothing to do, no picture to display in the que
|
|
} else {
|
|
double time= av_gettime()/1000000.0;
|
|
double next_target;
|
|
/* dequeue the picture */
|
|
vp = &is->pictq[is->pictq_rindex];
|
|
|
|
if(time < vp->target_clock)
|
|
return;
|
|
/* update current video pts */
|
|
is->video_current_pts = vp->pts;
|
|
is->video_current_pts_drift = is->video_current_pts - time;
|
|
is->video_current_pos = vp->pos;
|
|
if(is->pictq_size > 1){
|
|
VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
|
|
assert(nextvp->target_clock >= vp->target_clock);
|
|
next_target= nextvp->target_clock;
|
|
}else{
|
|
next_target= vp->target_clock + vp->duration;
|
|
}
|
|
if((framedrop>0 || (framedrop && is->audio_st)) && time > next_target){
|
|
is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
|
|
if(is->pictq_size > 1){
|
|
/* update queue size and signal for next picture */
|
|
if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
|
|
is->pictq_rindex = 0;
|
|
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
is->pictq_size--;
|
|
SDL_CondSignal(is->pictq_cond);
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
goto retry;
|
|
}
|
|
}
|
|
|
|
if(is->subtitle_st) {
|
|
if (is->subtitle_stream_changed) {
|
|
SDL_LockMutex(is->subpq_mutex);
|
|
|
|
while (is->subpq_size) {
|
|
free_subpicture(&is->subpq[is->subpq_rindex]);
|
|
|
|
/* update queue size and signal for next picture */
|
|
if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
|
|
is->subpq_rindex = 0;
|
|
|
|
is->subpq_size--;
|
|
}
|
|
is->subtitle_stream_changed = 0;
|
|
|
|
SDL_CondSignal(is->subpq_cond);
|
|
SDL_UnlockMutex(is->subpq_mutex);
|
|
} else {
|
|
if (is->subpq_size > 0) {
|
|
sp = &is->subpq[is->subpq_rindex];
|
|
|
|
if (is->subpq_size > 1)
|
|
sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
|
|
else
|
|
sp2 = NULL;
|
|
|
|
if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
|
|
|| (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
|
|
{
|
|
free_subpicture(sp);
|
|
|
|
/* update queue size and signal for next picture */
|
|
if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
|
|
is->subpq_rindex = 0;
|
|
|
|
SDL_LockMutex(is->subpq_mutex);
|
|
is->subpq_size--;
|
|
SDL_CondSignal(is->subpq_cond);
|
|
SDL_UnlockMutex(is->subpq_mutex);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* display picture */
|
|
if (!display_disable)
|
|
video_display(is);
|
|
|
|
/* update queue size and signal for next picture */
|
|
if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
|
|
is->pictq_rindex = 0;
|
|
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
is->pictq_size--;
|
|
SDL_CondSignal(is->pictq_cond);
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
}
|
|
} else if (is->audio_st) {
|
|
/* draw the next audio frame */
|
|
|
|
/* if only audio stream, then display the audio bars (better
|
|
than nothing, just to test the implementation */
|
|
|
|
/* display picture */
|
|
if (!display_disable)
|
|
video_display(is);
|
|
}
|
|
if (show_status) {
|
|
static int64_t last_time;
|
|
int64_t cur_time;
|
|
int aqsize, vqsize, sqsize;
|
|
double av_diff;
|
|
|
|
cur_time = av_gettime();
|
|
if (!last_time || (cur_time - last_time) >= 30000) {
|
|
aqsize = 0;
|
|
vqsize = 0;
|
|
sqsize = 0;
|
|
if (is->audio_st)
|
|
aqsize = is->audioq.size;
|
|
if (is->video_st)
|
|
vqsize = is->videoq.size;
|
|
if (is->subtitle_st)
|
|
sqsize = is->subtitleq.size;
|
|
av_diff = 0;
|
|
if (is->audio_st && is->video_st)
|
|
av_diff = get_audio_clock(is) - get_video_clock(is);
|
|
printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
|
|
get_master_clock(is),
|
|
av_diff,
|
|
FFMAX(is->skip_frames-1, 0),
|
|
aqsize / 1024,
|
|
vqsize / 1024,
|
|
sqsize,
|
|
is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
|
|
is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
|
|
fflush(stdout);
|
|
last_time = cur_time;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* allocate a picture (needs to do that in main thread to avoid
|
|
potential locking problems */
|
|
static void alloc_picture(void *opaque)
|
|
{
|
|
VideoState *is = opaque;
|
|
VideoPicture *vp;
|
|
|
|
vp = &is->pictq[is->pictq_windex];
|
|
|
|
if (vp->bmp)
|
|
SDL_FreeYUVOverlay(vp->bmp);
|
|
|
|
#if CONFIG_AVFILTER
|
|
if (vp->picref)
|
|
avfilter_unref_buffer(vp->picref);
|
|
vp->picref = NULL;
|
|
|
|
vp->width = is->out_video_filter->inputs[0]->w;
|
|
vp->height = is->out_video_filter->inputs[0]->h;
|
|
vp->pix_fmt = is->out_video_filter->inputs[0]->format;
|
|
#else
|
|
vp->width = is->video_st->codec->width;
|
|
vp->height = is->video_st->codec->height;
|
|
vp->pix_fmt = is->video_st->codec->pix_fmt;
|
|
#endif
|
|
|
|
vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
|
|
SDL_YV12_OVERLAY,
|
|
screen);
|
|
if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
|
|
/* SDL allocates a buffer smaller than requested if the video
|
|
* overlay hardware is unable to support the requested size. */
|
|
fprintf(stderr, "Error: the video system does not support an image\n"
|
|
"size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
|
|
"to reduce the image size.\n", vp->width, vp->height );
|
|
do_exit(is);
|
|
}
|
|
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
vp->allocated = 1;
|
|
SDL_CondSignal(is->pictq_cond);
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
}
|
|
|
|
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
|
|
{
|
|
VideoPicture *vp;
|
|
double frame_delay, pts = pts1;
|
|
|
|
/* compute the exact PTS for the picture if it is omitted in the stream
|
|
* pts1 is the dts of the pkt / pts of the frame */
|
|
if (pts != 0) {
|
|
/* update video clock with pts, if present */
|
|
is->video_clock = pts;
|
|
} else {
|
|
pts = is->video_clock;
|
|
}
|
|
/* update video clock for next frame */
|
|
frame_delay = av_q2d(is->video_st->codec->time_base);
|
|
/* for MPEG2, the frame can be repeated, so we update the
|
|
clock accordingly */
|
|
frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
|
|
is->video_clock += frame_delay;
|
|
|
|
#if defined(DEBUG_SYNC) && 0
|
|
printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
|
|
av_get_picture_type_char(src_frame->pict_type), pts, pts1);
|
|
#endif
|
|
|
|
/* wait until we have space to put a new picture */
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
|
|
if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
|
|
is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
|
|
|
|
while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
|
|
!is->videoq.abort_request) {
|
|
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
|
|
}
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
|
|
if (is->videoq.abort_request)
|
|
return -1;
|
|
|
|
vp = &is->pictq[is->pictq_windex];
|
|
|
|
vp->duration = frame_delay;
|
|
|
|
/* alloc or resize hardware picture buffer */
|
|
if (!vp->bmp ||
|
|
#if CONFIG_AVFILTER
|
|
vp->width != is->out_video_filter->inputs[0]->w ||
|
|
vp->height != is->out_video_filter->inputs[0]->h) {
|
|
#else
|
|
vp->width != is->video_st->codec->width ||
|
|
vp->height != is->video_st->codec->height) {
|
|
#endif
|
|
SDL_Event event;
|
|
|
|
vp->allocated = 0;
|
|
|
|
/* the allocation must be done in the main thread to avoid
|
|
locking problems */
|
|
event.type = FF_ALLOC_EVENT;
|
|
event.user.data1 = is;
|
|
SDL_PushEvent(&event);
|
|
|
|
/* wait until the picture is allocated */
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
while (!vp->allocated && !is->videoq.abort_request) {
|
|
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
|
|
}
|
|
/* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */
|
|
if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) {
|
|
while (!vp->allocated) {
|
|
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
|
|
}
|
|
}
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
|
|
if (is->videoq.abort_request)
|
|
return -1;
|
|
}
|
|
|
|
/* if the frame is not skipped, then display it */
|
|
if (vp->bmp) {
|
|
AVPicture pict;
|
|
#if CONFIG_AVFILTER
|
|
if(vp->picref)
|
|
avfilter_unref_buffer(vp->picref);
|
|
vp->picref = src_frame->opaque;
|
|
#endif
|
|
|
|
/* get a pointer on the bitmap */
|
|
SDL_LockYUVOverlay (vp->bmp);
|
|
|
|
memset(&pict,0,sizeof(AVPicture));
|
|
pict.data[0] = vp->bmp->pixels[0];
|
|
pict.data[1] = vp->bmp->pixels[2];
|
|
pict.data[2] = vp->bmp->pixels[1];
|
|
|
|
pict.linesize[0] = vp->bmp->pitches[0];
|
|
pict.linesize[1] = vp->bmp->pitches[2];
|
|
pict.linesize[2] = vp->bmp->pitches[1];
|
|
|
|
#if CONFIG_AVFILTER
|
|
//FIXME use direct rendering
|
|
av_picture_copy(&pict, (AVPicture *)src_frame,
|
|
vp->pix_fmt, vp->width, vp->height);
|
|
#else
|
|
sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
|
|
is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
|
|
vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
|
|
PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL);
|
|
if (is->img_convert_ctx == NULL) {
|
|
fprintf(stderr, "Cannot initialize the conversion context\n");
|
|
exit(1);
|
|
}
|
|
sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
|
|
0, vp->height, pict.data, pict.linesize);
|
|
#endif
|
|
/* update the bitmap content */
|
|
SDL_UnlockYUVOverlay(vp->bmp);
|
|
|
|
vp->pts = pts;
|
|
vp->pos = pos;
|
|
|
|
/* now we can update the picture count */
|
|
if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
|
|
is->pictq_windex = 0;
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
vp->target_clock= compute_target_time(vp->pts, is);
|
|
|
|
is->pictq_size++;
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
|
|
{
|
|
int got_picture, i;
|
|
|
|
if (packet_queue_get(&is->videoq, pkt, 1) < 0)
|
|
return -1;
|
|
|
|
if (pkt->data == flush_pkt.data) {
|
|
avcodec_flush_buffers(is->video_st->codec);
|
|
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
//Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
|
|
for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
|
|
is->pictq[i].target_clock= 0;
|
|
}
|
|
while (is->pictq_size && !is->videoq.abort_request) {
|
|
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
|
|
}
|
|
is->video_current_pos = -1;
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
|
|
is->frame_last_pts = AV_NOPTS_VALUE;
|
|
is->frame_last_delay = 0;
|
|
is->frame_timer = (double)av_gettime() / 1000000.0;
|
|
is->skip_frames = 1;
|
|
is->skip_frames_index = 0;
|
|
return 0;
|
|
}
|
|
|
|
avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
|
|
|
|
if (got_picture) {
|
|
if (decoder_reorder_pts == -1) {
|
|
*pts = frame->best_effort_timestamp;
|
|
} else if (decoder_reorder_pts) {
|
|
*pts = frame->pkt_pts;
|
|
} else {
|
|
*pts = frame->pkt_dts;
|
|
}
|
|
|
|
if (*pts == AV_NOPTS_VALUE) {
|
|
*pts = 0;
|
|
}
|
|
|
|
is->skip_frames_index += 1;
|
|
if(is->skip_frames_index >= is->skip_frames){
|
|
is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
|
|
return 1;
|
|
}
|
|
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#if CONFIG_AVFILTER
|
|
typedef struct {
|
|
VideoState *is;
|
|
AVFrame *frame;
|
|
int use_dr1;
|
|
} FilterPriv;
|
|
|
|
static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
|
|
{
|
|
AVFilterContext *ctx = codec->opaque;
|
|
AVFilterBufferRef *ref;
|
|
int perms = AV_PERM_WRITE;
|
|
int i, w, h, stride[4];
|
|
unsigned edge;
|
|
int pixel_size;
|
|
|
|
av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
|
|
|
|
if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
|
|
perms |= AV_PERM_NEG_LINESIZES;
|
|
|
|
if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
|
|
if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
|
|
if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
|
|
if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
|
|
}
|
|
if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
|
|
|
|
w = codec->width;
|
|
h = codec->height;
|
|
|
|
if(av_image_check_size(w, h, 0, codec))
|
|
return -1;
|
|
|
|
avcodec_align_dimensions2(codec, &w, &h, stride);
|
|
edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
|
|
w += edge << 1;
|
|
h += edge << 1;
|
|
|
|
if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
|
|
return -1;
|
|
|
|
pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
|
|
ref->video->w = codec->width;
|
|
ref->video->h = codec->height;
|
|
for(i = 0; i < 4; i ++) {
|
|
unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
|
|
unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
|
|
|
|
if (ref->data[i]) {
|
|
ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
|
|
}
|
|
pic->data[i] = ref->data[i];
|
|
pic->linesize[i] = ref->linesize[i];
|
|
}
|
|
pic->opaque = ref;
|
|
pic->age = INT_MAX;
|
|
pic->type = FF_BUFFER_TYPE_USER;
|
|
pic->reordered_opaque = codec->reordered_opaque;
|
|
if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
|
|
else pic->pkt_pts = AV_NOPTS_VALUE;
|
|
return 0;
|
|
}
|
|
|
|
static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
|
|
{
|
|
memset(pic->data, 0, sizeof(pic->data));
|
|
avfilter_unref_buffer(pic->opaque);
|
|
}
|
|
|
|
static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
|
|
{
|
|
AVFilterBufferRef *ref = pic->opaque;
|
|
|
|
if (pic->data[0] == NULL) {
|
|
pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
|
|
return codec->get_buffer(codec, pic);
|
|
}
|
|
|
|
if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
|
|
(codec->pix_fmt != ref->format)) {
|
|
av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
|
|
return -1;
|
|
}
|
|
|
|
pic->reordered_opaque = codec->reordered_opaque;
|
|
if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
|
|
else pic->pkt_pts = AV_NOPTS_VALUE;
|
|
return 0;
|
|
}
|
|
|
|
static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
|
|
{
|
|
FilterPriv *priv = ctx->priv;
|
|
AVCodecContext *codec;
|
|
if(!opaque) return -1;
|
|
|
|
priv->is = opaque;
|
|
codec = priv->is->video_st->codec;
|
|
codec->opaque = ctx;
|
|
if((codec->codec->capabilities & CODEC_CAP_DR1)
|
|
) {
|
|
av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
|
|
priv->use_dr1 = 1;
|
|
codec->get_buffer = input_get_buffer;
|
|
codec->release_buffer = input_release_buffer;
|
|
codec->reget_buffer = input_reget_buffer;
|
|
codec->thread_safe_callbacks = 1;
|
|
}
|
|
|
|
priv->frame = avcodec_alloc_frame();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void input_uninit(AVFilterContext *ctx)
|
|
{
|
|
FilterPriv *priv = ctx->priv;
|
|
av_free(priv->frame);
|
|
}
|
|
|
|
static int input_request_frame(AVFilterLink *link)
|
|
{
|
|
FilterPriv *priv = link->src->priv;
|
|
AVFilterBufferRef *picref;
|
|
int64_t pts = 0;
|
|
AVPacket pkt;
|
|
int ret;
|
|
|
|
while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
|
|
av_free_packet(&pkt);
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
if(priv->use_dr1 && priv->frame->opaque) {
|
|
picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
|
|
} else {
|
|
picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
|
|
av_image_copy(picref->data, picref->linesize,
|
|
priv->frame->data, priv->frame->linesize,
|
|
picref->format, link->w, link->h);
|
|
}
|
|
av_free_packet(&pkt);
|
|
|
|
avfilter_copy_frame_props(picref, priv->frame);
|
|
picref->pts = pts;
|
|
|
|
avfilter_start_frame(link, picref);
|
|
avfilter_draw_slice(link, 0, link->h, 1);
|
|
avfilter_end_frame(link);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int input_query_formats(AVFilterContext *ctx)
|
|
{
|
|
FilterPriv *priv = ctx->priv;
|
|
enum PixelFormat pix_fmts[] = {
|
|
priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
|
|
};
|
|
|
|
avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
|
|
return 0;
|
|
}
|
|
|
|
static int input_config_props(AVFilterLink *link)
|
|
{
|
|
FilterPriv *priv = link->src->priv;
|
|
AVStream *s = priv->is->video_st;
|
|
|
|
link->w = s->codec->width;
|
|
link->h = s->codec->height;
|
|
link->sample_aspect_ratio = s->sample_aspect_ratio.num ?
|
|
s->sample_aspect_ratio : s->codec->sample_aspect_ratio;
|
|
link->time_base = s->time_base;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static AVFilter input_filter =
|
|
{
|
|
.name = "ffplay_input",
|
|
|
|
.priv_size = sizeof(FilterPriv),
|
|
|
|
.init = input_init,
|
|
.uninit = input_uninit,
|
|
|
|
.query_formats = input_query_formats,
|
|
|
|
.inputs = (AVFilterPad[]) {{ .name = NULL }},
|
|
.outputs = (AVFilterPad[]) {{ .name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.request_frame = input_request_frame,
|
|
.config_props = input_config_props, },
|
|
{ .name = NULL }},
|
|
};
|
|
|
|
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
|
|
{
|
|
char sws_flags_str[128];
|
|
int ret;
|
|
enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
|
|
AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
|
|
AVFilterContext *filt_src = NULL, *filt_out = NULL;
|
|
snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
|
|
graph->scale_sws_opts = av_strdup(sws_flags_str);
|
|
|
|
if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
|
|
NULL, is, graph)) < 0)
|
|
return ret;
|
|
#if FF_API_OLD_VSINK_API
|
|
ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
|
|
NULL, pix_fmts, graph);
|
|
#else
|
|
buffersink_params->pixel_fmts = pix_fmts;
|
|
ret = avfilter_graph_create_filter(&filt_out, avfilter_get_by_name("buffersink"), "out",
|
|
NULL, buffersink_params, graph);
|
|
#endif
|
|
av_freep(&buffersink_params);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if(vfilters) {
|
|
AVFilterInOut *outputs = avfilter_inout_alloc();
|
|
AVFilterInOut *inputs = avfilter_inout_alloc();
|
|
|
|
outputs->name = av_strdup("in");
|
|
outputs->filter_ctx = filt_src;
|
|
outputs->pad_idx = 0;
|
|
outputs->next = NULL;
|
|
|
|
inputs->name = av_strdup("out");
|
|
inputs->filter_ctx = filt_out;
|
|
inputs->pad_idx = 0;
|
|
inputs->next = NULL;
|
|
|
|
if ((ret = avfilter_graph_parse(graph, vfilters, &inputs, &outputs, NULL)) < 0)
|
|
return ret;
|
|
} else {
|
|
if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
|
|
return ret;
|
|
}
|
|
|
|
if ((ret = avfilter_graph_config(graph, NULL)) < 0)
|
|
return ret;
|
|
|
|
is->out_video_filter = filt_out;
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif /* CONFIG_AVFILTER */
|
|
|
|
static int video_thread(void *arg)
|
|
{
|
|
VideoState *is = arg;
|
|
AVFrame *frame= avcodec_alloc_frame();
|
|
int64_t pts_int = AV_NOPTS_VALUE, pos = -1;
|
|
double pts;
|
|
int ret;
|
|
|
|
#if CONFIG_AVFILTER
|
|
AVFilterGraph *graph = avfilter_graph_alloc();
|
|
AVFilterContext *filt_out = NULL;
|
|
int last_w = is->video_st->codec->width;
|
|
int last_h = is->video_st->codec->height;
|
|
|
|
if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
|
|
goto the_end;
|
|
filt_out = is->out_video_filter;
|
|
#endif
|
|
|
|
for(;;) {
|
|
#if !CONFIG_AVFILTER
|
|
AVPacket pkt;
|
|
#else
|
|
AVFilterBufferRef *picref;
|
|
AVRational tb = filt_out->inputs[0]->time_base;
|
|
#endif
|
|
while (is->paused && !is->videoq.abort_request)
|
|
SDL_Delay(10);
|
|
#if CONFIG_AVFILTER
|
|
if ( last_w != is->video_st->codec->width
|
|
|| last_h != is->video_st->codec->height) {
|
|
av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
|
|
last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
|
|
avfilter_graph_free(&graph);
|
|
graph = avfilter_graph_alloc();
|
|
if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
|
|
goto the_end;
|
|
filt_out = is->out_video_filter;
|
|
last_w = is->video_st->codec->width;
|
|
last_h = is->video_st->codec->height;
|
|
}
|
|
ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
|
|
if (picref) {
|
|
avfilter_fill_frame_from_video_buffer_ref(frame, picref);
|
|
pts_int = picref->pts;
|
|
pos = picref->pos;
|
|
frame->opaque = picref;
|
|
}
|
|
|
|
if (av_cmp_q(tb, is->video_st->time_base)) {
|
|
av_unused int64_t pts1 = pts_int;
|
|
pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
|
|
av_dlog(NULL, "video_thread(): "
|
|
"tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
|
|
tb.num, tb.den, pts1,
|
|
is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
|
|
}
|
|
#else
|
|
ret = get_video_frame(is, frame, &pts_int, &pkt);
|
|
pos = pkt.pos;
|
|
av_free_packet(&pkt);
|
|
#endif
|
|
|
|
if (ret < 0) goto the_end;
|
|
|
|
#if CONFIG_AVFILTER
|
|
if (!picref)
|
|
continue;
|
|
#endif
|
|
|
|
pts = pts_int*av_q2d(is->video_st->time_base);
|
|
|
|
ret = queue_picture(is, frame, pts, pos);
|
|
|
|
if (ret < 0)
|
|
goto the_end;
|
|
|
|
if (is->step)
|
|
stream_toggle_pause(is);
|
|
}
|
|
the_end:
|
|
#if CONFIG_AVFILTER
|
|
avfilter_graph_free(&graph);
|
|
#endif
|
|
av_free(frame);
|
|
return 0;
|
|
}
|
|
|
|
static int subtitle_thread(void *arg)
|
|
{
|
|
VideoState *is = arg;
|
|
SubPicture *sp;
|
|
AVPacket pkt1, *pkt = &pkt1;
|
|
int got_subtitle;
|
|
double pts;
|
|
int i, j;
|
|
int r, g, b, y, u, v, a;
|
|
|
|
for(;;) {
|
|
while (is->paused && !is->subtitleq.abort_request) {
|
|
SDL_Delay(10);
|
|
}
|
|
if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
|
|
break;
|
|
|
|
if(pkt->data == flush_pkt.data){
|
|
avcodec_flush_buffers(is->subtitle_st->codec);
|
|
continue;
|
|
}
|
|
SDL_LockMutex(is->subpq_mutex);
|
|
while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
|
|
!is->subtitleq.abort_request) {
|
|
SDL_CondWait(is->subpq_cond, is->subpq_mutex);
|
|
}
|
|
SDL_UnlockMutex(is->subpq_mutex);
|
|
|
|
if (is->subtitleq.abort_request)
|
|
return 0;
|
|
|
|
sp = &is->subpq[is->subpq_windex];
|
|
|
|
/* NOTE: ipts is the PTS of the _first_ picture beginning in
|
|
this packet, if any */
|
|
pts = 0;
|
|
if (pkt->pts != AV_NOPTS_VALUE)
|
|
pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
|
|
|
|
avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
|
|
&got_subtitle, pkt);
|
|
|
|
if (got_subtitle && sp->sub.format == 0) {
|
|
sp->pts = pts;
|
|
|
|
for (i = 0; i < sp->sub.num_rects; i++)
|
|
{
|
|
for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
|
|
{
|
|
RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
|
|
y = RGB_TO_Y_CCIR(r, g, b);
|
|
u = RGB_TO_U_CCIR(r, g, b, 0);
|
|
v = RGB_TO_V_CCIR(r, g, b, 0);
|
|
YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
|
|
}
|
|
}
|
|
|
|
/* now we can update the picture count */
|
|
if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
|
|
is->subpq_windex = 0;
|
|
SDL_LockMutex(is->subpq_mutex);
|
|
is->subpq_size++;
|
|
SDL_UnlockMutex(is->subpq_mutex);
|
|
}
|
|
av_free_packet(pkt);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* copy samples for viewing in editor window */
|
|
static void update_sample_display(VideoState *is, short *samples, int samples_size)
|
|
{
|
|
int size, len;
|
|
|
|
size = samples_size / sizeof(short);
|
|
while (size > 0) {
|
|
len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
|
|
if (len > size)
|
|
len = size;
|
|
memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
|
|
samples += len;
|
|
is->sample_array_index += len;
|
|
if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
|
|
is->sample_array_index = 0;
|
|
size -= len;
|
|
}
|
|
}
|
|
|
|
/* return the new audio buffer size (samples can be added or deleted
|
|
to get better sync if video or external master clock) */
|
|
static int synchronize_audio(VideoState *is, short *samples,
|
|
int samples_size1, double pts)
|
|
{
|
|
int n, samples_size;
|
|
double ref_clock;
|
|
|
|
n = av_get_bytes_per_sample(is->audio_tgt_fmt) * is->audio_tgt_channels;
|
|
samples_size = samples_size1;
|
|
|
|
/* if not master, then we try to remove or add samples to correct the clock */
|
|
if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
|
|
is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
|
|
double diff, avg_diff;
|
|
int wanted_size, min_size, max_size, nb_samples;
|
|
|
|
ref_clock = get_master_clock(is);
|
|
diff = get_audio_clock(is) - ref_clock;
|
|
|
|
if (diff < AV_NOSYNC_THRESHOLD) {
|
|
is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
|
|
if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
|
|
/* not enough measures to have a correct estimate */
|
|
is->audio_diff_avg_count++;
|
|
} else {
|
|
/* estimate the A-V difference */
|
|
avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
|
|
|
|
if (fabs(avg_diff) >= is->audio_diff_threshold) {
|
|
wanted_size = samples_size + ((int)(diff * is->audio_tgt_freq) * n);
|
|
nb_samples = samples_size / n;
|
|
|
|
min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
|
|
max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
|
|
if (wanted_size < min_size)
|
|
wanted_size = min_size;
|
|
else if (wanted_size > FFMIN3(max_size, sizeof(is->audio_buf1), sizeof(is->audio_buf2)))
|
|
wanted_size = FFMIN3(max_size, sizeof(is->audio_buf1), sizeof(is->audio_buf2));
|
|
|
|
/* add or remove samples to correction the synchro */
|
|
if (wanted_size < samples_size) {
|
|
/* remove samples */
|
|
samples_size = wanted_size;
|
|
} else if (wanted_size > samples_size) {
|
|
uint8_t *samples_end, *q;
|
|
int nb;
|
|
|
|
/* add samples */
|
|
nb = (samples_size - wanted_size);
|
|
samples_end = (uint8_t *)samples + samples_size - n;
|
|
q = samples_end + n;
|
|
while (nb > 0) {
|
|
memcpy(q, samples_end, n);
|
|
q += n;
|
|
nb -= n;
|
|
}
|
|
samples_size = wanted_size;
|
|
}
|
|
}
|
|
av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
|
|
diff, avg_diff, samples_size - samples_size1,
|
|
is->audio_clock, is->video_clock, is->audio_diff_threshold);
|
|
}
|
|
} else {
|
|
/* too big difference : may be initial PTS errors, so
|
|
reset A-V filter */
|
|
is->audio_diff_avg_count = 0;
|
|
is->audio_diff_cum = 0;
|
|
}
|
|
}
|
|
|
|
return samples_size;
|
|
}
|
|
|
|
/* decode one audio frame and returns its uncompressed size */
|
|
static int audio_decode_frame(VideoState *is, double *pts_ptr)
|
|
{
|
|
AVPacket *pkt_temp = &is->audio_pkt_temp;
|
|
AVPacket *pkt = &is->audio_pkt;
|
|
AVCodecContext *dec= is->audio_st->codec;
|
|
int len1, len2, data_size, resampled_data_size;
|
|
int64_t dec_channel_layout;
|
|
double pts;
|
|
int new_packet = 0;
|
|
int flush_complete = 0;
|
|
|
|
for(;;) {
|
|
/* NOTE: the audio packet can contain several frames */
|
|
while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) {
|
|
if (flush_complete)
|
|
break;
|
|
new_packet = 0;
|
|
data_size = sizeof(is->audio_buf1);
|
|
len1 = avcodec_decode_audio3(dec,
|
|
(int16_t *)is->audio_buf1, &data_size,
|
|
pkt_temp);
|
|
if (len1 < 0) {
|
|
/* if error, we skip the frame */
|
|
pkt_temp->size = 0;
|
|
break;
|
|
}
|
|
|
|
pkt_temp->data += len1;
|
|
pkt_temp->size -= len1;
|
|
|
|
if (data_size <= 0) {
|
|
/* stop sending empty packets if the decoder is finished */
|
|
if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY)
|
|
flush_complete = 1;
|
|
continue;
|
|
}
|
|
|
|
dec_channel_layout = (dec->channel_layout && dec->channels == av_get_channel_layout_nb_channels(dec->channel_layout)) ? dec->channel_layout : av_get_default_channel_layout(dec->channels);
|
|
|
|
if (dec->sample_fmt != is->audio_src_fmt || dec_channel_layout != is->audio_src_channel_layout || dec->sample_rate != is->audio_src_freq) {
|
|
if (is->swr_ctx)
|
|
swr_free(&is->swr_ctx);
|
|
is->swr_ctx = swr_alloc2(NULL, is->audio_tgt_channel_layout, is->audio_tgt_fmt, is->audio_tgt_freq,
|
|
dec_channel_layout, dec->sample_fmt, dec->sample_rate,
|
|
0, NULL);
|
|
if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
|
|
fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
|
|
dec->sample_rate,
|
|
av_get_sample_fmt_name(dec->sample_fmt),
|
|
dec->channels,
|
|
is->audio_tgt_freq,
|
|
av_get_sample_fmt_name(is->audio_tgt_fmt),
|
|
is->audio_tgt_channels);
|
|
break;
|
|
}
|
|
is->audio_src_channel_layout = dec_channel_layout;
|
|
is->audio_src_channels = dec->channels;
|
|
is->audio_src_freq = dec->sample_rate;
|
|
is->audio_src_fmt = dec->sample_fmt;
|
|
}
|
|
|
|
resampled_data_size = data_size;
|
|
if (is->swr_ctx) {
|
|
const uint8_t *in[] = {is->audio_buf1};
|
|
uint8_t *out[] = {is->audio_buf2};
|
|
len2 = swr_convert(is->swr_ctx, out, sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt),
|
|
in, data_size / dec->channels / av_get_bytes_per_sample(dec->sample_fmt));
|
|
if (len2 < 0) {
|
|
fprintf(stderr, "audio_resample() failed\n");
|
|
break;
|
|
}
|
|
if (len2 == sizeof(is->audio_buf2) / is->audio_tgt_channels / av_get_bytes_per_sample(is->audio_tgt_fmt)) {
|
|
fprintf(stderr, "warning: audio buffer is probably too small\n");
|
|
swr_init(is->swr_ctx);
|
|
}
|
|
is->audio_buf = is->audio_buf2;
|
|
resampled_data_size = len2 * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
|
|
} else {
|
|
is->audio_buf= is->audio_buf1;
|
|
}
|
|
|
|
/* if no pts, then compute it */
|
|
pts = is->audio_clock;
|
|
*pts_ptr = pts;
|
|
is->audio_clock += (double)data_size / (dec->channels * dec->sample_rate * av_get_bytes_per_sample(dec->sample_fmt));
|
|
#ifdef DEBUG
|
|
{
|
|
static double last_clock;
|
|
printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
|
|
is->audio_clock - last_clock,
|
|
is->audio_clock, pts);
|
|
last_clock = is->audio_clock;
|
|
}
|
|
#endif
|
|
return resampled_data_size;
|
|
}
|
|
|
|
/* free the current packet */
|
|
if (pkt->data)
|
|
av_free_packet(pkt);
|
|
|
|
if (is->paused || is->audioq.abort_request) {
|
|
return -1;
|
|
}
|
|
|
|
/* read next packet */
|
|
if ((new_packet = packet_queue_get(&is->audioq, pkt, 1)) < 0)
|
|
return -1;
|
|
|
|
if (pkt->data == flush_pkt.data)
|
|
avcodec_flush_buffers(dec);
|
|
|
|
pkt_temp->data = pkt->data;
|
|
pkt_temp->size = pkt->size;
|
|
|
|
/* if update the audio clock with the pts */
|
|
if (pkt->pts != AV_NOPTS_VALUE) {
|
|
is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* prepare a new audio buffer */
|
|
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
|
|
{
|
|
VideoState *is = opaque;
|
|
int audio_size, len1;
|
|
int bytes_per_sec;
|
|
double pts;
|
|
|
|
audio_callback_time = av_gettime();
|
|
|
|
while (len > 0) {
|
|
if (is->audio_buf_index >= is->audio_buf_size) {
|
|
audio_size = audio_decode_frame(is, &pts);
|
|
if (audio_size < 0) {
|
|
/* if error, just output silence */
|
|
is->audio_buf = is->audio_buf1;
|
|
is->audio_buf_size = 256 * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
|
|
memset(is->audio_buf, 0, is->audio_buf_size);
|
|
} else {
|
|
if (is->show_mode != SHOW_MODE_VIDEO)
|
|
update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
|
|
audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
|
|
pts);
|
|
is->audio_buf_size = audio_size;
|
|
}
|
|
is->audio_buf_index = 0;
|
|
}
|
|
len1 = is->audio_buf_size - is->audio_buf_index;
|
|
if (len1 > len)
|
|
len1 = len;
|
|
memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
|
|
len -= len1;
|
|
stream += len1;
|
|
is->audio_buf_index += len1;
|
|
}
|
|
bytes_per_sec = is->audio_tgt_freq * is->audio_tgt_channels * av_get_bytes_per_sample(is->audio_tgt_fmt);
|
|
is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
|
|
/* Let's assume the audio driver that is used by SDL has two periods. */
|
|
is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec;
|
|
is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0;
|
|
}
|
|
|
|
/* open a given stream. Return 0 if OK */
|
|
static int stream_component_open(VideoState *is, int stream_index)
|
|
{
|
|
AVFormatContext *ic = is->ic;
|
|
AVCodecContext *avctx;
|
|
AVCodec *codec;
|
|
SDL_AudioSpec wanted_spec, spec;
|
|
AVDictionary *opts;
|
|
AVDictionaryEntry *t = NULL;
|
|
int64_t wanted_channel_layout = 0;
|
|
|
|
if (stream_index < 0 || stream_index >= ic->nb_streams)
|
|
return -1;
|
|
avctx = ic->streams[stream_index]->codec;
|
|
|
|
opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index]);
|
|
|
|
codec = avcodec_find_decoder(avctx->codec_id);
|
|
switch(avctx->codec_type){
|
|
case AVMEDIA_TYPE_AUDIO : if(audio_codec_name ) codec= avcodec_find_decoder_by_name( audio_codec_name); break;
|
|
case AVMEDIA_TYPE_SUBTITLE: if(subtitle_codec_name) codec= avcodec_find_decoder_by_name(subtitle_codec_name); break;
|
|
case AVMEDIA_TYPE_VIDEO : if(video_codec_name ) codec= avcodec_find_decoder_by_name( video_codec_name); break;
|
|
}
|
|
if (!codec)
|
|
return -1;
|
|
|
|
avctx->workaround_bugs = workaround_bugs;
|
|
avctx->lowres = lowres;
|
|
if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
|
|
avctx->idct_algo= idct;
|
|
if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
|
|
avctx->skip_frame= skip_frame;
|
|
avctx->skip_idct= skip_idct;
|
|
avctx->skip_loop_filter= skip_loop_filter;
|
|
avctx->error_recognition= error_recognition;
|
|
avctx->error_concealment= error_concealment;
|
|
|
|
if(codec->capabilities & CODEC_CAP_DR1)
|
|
avctx->flags |= CODEC_FLAG_EMU_EDGE;
|
|
|
|
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
|
|
wanted_channel_layout = (avctx->channel_layout && avctx->channels == av_get_channel_layout_nb_channels(avctx->channels)) ? avctx->channel_layout : av_get_default_channel_layout(avctx->channels);
|
|
wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
|
|
wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
|
|
wanted_spec.freq = avctx->sample_rate;
|
|
if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
|
|
fprintf(stderr, "Invalid sample rate or channel count!\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (!codec ||
|
|
avcodec_open2(avctx, codec, &opts) < 0)
|
|
return -1;
|
|
if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
|
|
av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
|
|
return AVERROR_OPTION_NOT_FOUND;
|
|
}
|
|
|
|
/* prepare audio output */
|
|
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
|
|
wanted_spec.format = AUDIO_S16SYS;
|
|
wanted_spec.silence = 0;
|
|
wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
|
|
wanted_spec.callback = sdl_audio_callback;
|
|
wanted_spec.userdata = is;
|
|
if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
|
|
fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
|
|
return -1;
|
|
}
|
|
is->audio_hw_buf_size = spec.size;
|
|
if (spec.format != AUDIO_S16SYS) {
|
|
fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format);
|
|
return -1;
|
|
}
|
|
if (spec.channels != wanted_spec.channels) {
|
|
wanted_channel_layout = av_get_default_channel_layout(spec.channels);
|
|
if (!wanted_channel_layout) {
|
|
fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels);
|
|
return -1;
|
|
}
|
|
}
|
|
is->audio_src_fmt = is->audio_tgt_fmt = AV_SAMPLE_FMT_S16;
|
|
is->audio_src_freq = is->audio_tgt_freq = spec.freq;
|
|
is->audio_src_channel_layout = is->audio_tgt_channel_layout = wanted_channel_layout;
|
|
is->audio_src_channels = is->audio_tgt_channels = spec.channels;
|
|
}
|
|
|
|
ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
|
|
switch(avctx->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
is->audio_stream = stream_index;
|
|
is->audio_st = ic->streams[stream_index];
|
|
is->audio_buf_size = 0;
|
|
is->audio_buf_index = 0;
|
|
|
|
/* init averaging filter */
|
|
is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
|
|
is->audio_diff_avg_count = 0;
|
|
/* since we do not have a precise anough audio fifo fullness,
|
|
we correct audio sync only if larger than this threshold */
|
|
is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / wanted_spec.freq;
|
|
|
|
memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
|
|
packet_queue_init(&is->audioq);
|
|
SDL_PauseAudio(0);
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
is->video_stream = stream_index;
|
|
is->video_st = ic->streams[stream_index];
|
|
|
|
packet_queue_init(&is->videoq);
|
|
is->video_tid = SDL_CreateThread(video_thread, is);
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
is->subtitle_stream = stream_index;
|
|
is->subtitle_st = ic->streams[stream_index];
|
|
packet_queue_init(&is->subtitleq);
|
|
|
|
is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void stream_component_close(VideoState *is, int stream_index)
|
|
{
|
|
AVFormatContext *ic = is->ic;
|
|
AVCodecContext *avctx;
|
|
|
|
if (stream_index < 0 || stream_index >= ic->nb_streams)
|
|
return;
|
|
avctx = ic->streams[stream_index]->codec;
|
|
|
|
switch(avctx->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
packet_queue_abort(&is->audioq);
|
|
|
|
SDL_CloseAudio();
|
|
|
|
packet_queue_end(&is->audioq);
|
|
if (is->swr_ctx)
|
|
swr_free(&is->swr_ctx);
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
packet_queue_abort(&is->videoq);
|
|
|
|
/* note: we also signal this mutex to make sure we deblock the
|
|
video thread in all cases */
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
SDL_CondSignal(is->pictq_cond);
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
|
|
SDL_WaitThread(is->video_tid, NULL);
|
|
|
|
packet_queue_end(&is->videoq);
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
packet_queue_abort(&is->subtitleq);
|
|
|
|
/* note: we also signal this mutex to make sure we deblock the
|
|
video thread in all cases */
|
|
SDL_LockMutex(is->subpq_mutex);
|
|
is->subtitle_stream_changed = 1;
|
|
|
|
SDL_CondSignal(is->subpq_cond);
|
|
SDL_UnlockMutex(is->subpq_mutex);
|
|
|
|
SDL_WaitThread(is->subtitle_tid, NULL);
|
|
|
|
packet_queue_end(&is->subtitleq);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ic->streams[stream_index]->discard = AVDISCARD_ALL;
|
|
avcodec_close(avctx);
|
|
switch(avctx->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
is->audio_st = NULL;
|
|
is->audio_stream = -1;
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
is->video_st = NULL;
|
|
is->video_stream = -1;
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
is->subtitle_st = NULL;
|
|
is->subtitle_stream = -1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* since we have only one decoding thread, we can use a global
|
|
variable instead of a thread local variable */
|
|
static VideoState *global_video_state;
|
|
|
|
static int decode_interrupt_cb(void)
|
|
{
|
|
return (global_video_state && global_video_state->abort_request);
|
|
}
|
|
|
|
/* this thread gets the stream from the disk or the network */
|
|
static int read_thread(void *arg)
|
|
{
|
|
VideoState *is = arg;
|
|
AVFormatContext *ic = NULL;
|
|
int err, i, ret;
|
|
int st_index[AVMEDIA_TYPE_NB];
|
|
AVPacket pkt1, *pkt = &pkt1;
|
|
int eof=0;
|
|
int pkt_in_play_range = 0;
|
|
AVDictionaryEntry *t;
|
|
AVDictionary **opts;
|
|
int orig_nb_streams;
|
|
|
|
memset(st_index, -1, sizeof(st_index));
|
|
is->video_stream = -1;
|
|
is->audio_stream = -1;
|
|
is->subtitle_stream = -1;
|
|
|
|
global_video_state = is;
|
|
avio_set_interrupt_cb(decode_interrupt_cb);
|
|
|
|
err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
|
|
if (err < 0) {
|
|
print_error(is->filename, err);
|
|
ret = -1;
|
|
goto fail;
|
|
}
|
|
if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
|
|
av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
|
|
ret = AVERROR_OPTION_NOT_FOUND;
|
|
goto fail;
|
|
}
|
|
is->ic = ic;
|
|
|
|
if(genpts)
|
|
ic->flags |= AVFMT_FLAG_GENPTS;
|
|
|
|
av_dict_set(&codec_opts, "request_channels", "2", 0);
|
|
|
|
opts = setup_find_stream_info_opts(ic, codec_opts);
|
|
orig_nb_streams = ic->nb_streams;
|
|
|
|
err = avformat_find_stream_info(ic, opts);
|
|
if (err < 0) {
|
|
fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
|
|
ret = -1;
|
|
goto fail;
|
|
}
|
|
for (i = 0; i < orig_nb_streams; i++)
|
|
av_dict_free(&opts[i]);
|
|
av_freep(&opts);
|
|
|
|
if(ic->pb)
|
|
ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
|
|
|
|
if(seek_by_bytes<0)
|
|
seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
|
|
|
|
/* if seeking requested, we execute it */
|
|
if (start_time != AV_NOPTS_VALUE) {
|
|
int64_t timestamp;
|
|
|
|
timestamp = start_time;
|
|
/* add the stream start time */
|
|
if (ic->start_time != AV_NOPTS_VALUE)
|
|
timestamp += ic->start_time;
|
|
ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "%s: could not seek to position %0.3f\n",
|
|
is->filename, (double)timestamp / AV_TIME_BASE);
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < ic->nb_streams; i++)
|
|
ic->streams[i]->discard = AVDISCARD_ALL;
|
|
if (!video_disable)
|
|
st_index[AVMEDIA_TYPE_VIDEO] =
|
|
av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
|
|
wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
|
|
if (!audio_disable)
|
|
st_index[AVMEDIA_TYPE_AUDIO] =
|
|
av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
|
|
wanted_stream[AVMEDIA_TYPE_AUDIO],
|
|
st_index[AVMEDIA_TYPE_VIDEO],
|
|
NULL, 0);
|
|
if (!video_disable)
|
|
st_index[AVMEDIA_TYPE_SUBTITLE] =
|
|
av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
|
|
wanted_stream[AVMEDIA_TYPE_SUBTITLE],
|
|
(st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
|
|
st_index[AVMEDIA_TYPE_AUDIO] :
|
|
st_index[AVMEDIA_TYPE_VIDEO]),
|
|
NULL, 0);
|
|
if (show_status) {
|
|
av_dump_format(ic, 0, is->filename, 0);
|
|
}
|
|
|
|
is->show_mode = show_mode;
|
|
|
|
/* open the streams */
|
|
if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
|
|
stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
|
|
}
|
|
|
|
ret=-1;
|
|
if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
|
|
ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
|
|
}
|
|
is->refresh_tid = SDL_CreateThread(refresh_thread, is);
|
|
if (is->show_mode == SHOW_MODE_NONE)
|
|
is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
|
|
|
|
if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
|
|
stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
|
|
}
|
|
|
|
if (is->video_stream < 0 && is->audio_stream < 0) {
|
|
fprintf(stderr, "%s: could not open codecs\n", is->filename);
|
|
ret = -1;
|
|
goto fail;
|
|
}
|
|
|
|
for(;;) {
|
|
if (is->abort_request)
|
|
break;
|
|
if (is->paused != is->last_paused) {
|
|
is->last_paused = is->paused;
|
|
if (is->paused)
|
|
is->read_pause_return= av_read_pause(ic);
|
|
else
|
|
av_read_play(ic);
|
|
}
|
|
#if CONFIG_RTSP_DEMUXER
|
|
if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
|
|
/* wait 10 ms to avoid trying to get another packet */
|
|
/* XXX: horrible */
|
|
SDL_Delay(10);
|
|
continue;
|
|
}
|
|
#endif
|
|
if (is->seek_req) {
|
|
int64_t seek_target= is->seek_pos;
|
|
int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
|
|
int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
|
|
//FIXME the +-2 is due to rounding being not done in the correct direction in generation
|
|
// of the seek_pos/seek_rel variables
|
|
|
|
ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
|
|
}else{
|
|
if (is->audio_stream >= 0) {
|
|
packet_queue_flush(&is->audioq);
|
|
packet_queue_put(&is->audioq, &flush_pkt);
|
|
}
|
|
if (is->subtitle_stream >= 0) {
|
|
packet_queue_flush(&is->subtitleq);
|
|
packet_queue_put(&is->subtitleq, &flush_pkt);
|
|
}
|
|
if (is->video_stream >= 0) {
|
|
packet_queue_flush(&is->videoq);
|
|
packet_queue_put(&is->videoq, &flush_pkt);
|
|
}
|
|
}
|
|
is->seek_req = 0;
|
|
eof= 0;
|
|
}
|
|
|
|
/* if the queue are full, no need to read more */
|
|
if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
|
|
|| ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
|
|
&& (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
|
|
&& (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
|
|
/* wait 10 ms */
|
|
SDL_Delay(10);
|
|
continue;
|
|
}
|
|
if(eof) {
|
|
if(is->video_stream >= 0){
|
|
av_init_packet(pkt);
|
|
pkt->data=NULL;
|
|
pkt->size=0;
|
|
pkt->stream_index= is->video_stream;
|
|
packet_queue_put(&is->videoq, pkt);
|
|
}
|
|
if (is->audio_stream >= 0 &&
|
|
is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) {
|
|
av_init_packet(pkt);
|
|
pkt->data = NULL;
|
|
pkt->size = 0;
|
|
pkt->stream_index = is->audio_stream;
|
|
packet_queue_put(&is->audioq, pkt);
|
|
}
|
|
SDL_Delay(10);
|
|
if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
|
|
if(loop!=1 && (!loop || --loop)){
|
|
stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
|
|
}else if(autoexit){
|
|
ret=AVERROR_EOF;
|
|
goto fail;
|
|
}
|
|
}
|
|
eof=0;
|
|
continue;
|
|
}
|
|
ret = av_read_frame(ic, pkt);
|
|
if (ret < 0) {
|
|
if (ret == AVERROR_EOF || url_feof(ic->pb))
|
|
eof=1;
|
|
if (ic->pb && ic->pb->error)
|
|
break;
|
|
SDL_Delay(100); /* wait for user event */
|
|
continue;
|
|
}
|
|
/* check if packet is in play range specified by user, then queue, otherwise discard */
|
|
pkt_in_play_range = duration == AV_NOPTS_VALUE ||
|
|
(pkt->pts - ic->streams[pkt->stream_index]->start_time) *
|
|
av_q2d(ic->streams[pkt->stream_index]->time_base) -
|
|
(double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
|
|
<= ((double)duration/1000000);
|
|
if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
|
|
packet_queue_put(&is->audioq, pkt);
|
|
} else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
|
|
packet_queue_put(&is->videoq, pkt);
|
|
} else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
|
|
packet_queue_put(&is->subtitleq, pkt);
|
|
} else {
|
|
av_free_packet(pkt);
|
|
}
|
|
}
|
|
/* wait until the end */
|
|
while (!is->abort_request) {
|
|
SDL_Delay(100);
|
|
}
|
|
|
|
ret = 0;
|
|
fail:
|
|
/* disable interrupting */
|
|
global_video_state = NULL;
|
|
|
|
/* close each stream */
|
|
if (is->audio_stream >= 0)
|
|
stream_component_close(is, is->audio_stream);
|
|
if (is->video_stream >= 0)
|
|
stream_component_close(is, is->video_stream);
|
|
if (is->subtitle_stream >= 0)
|
|
stream_component_close(is, is->subtitle_stream);
|
|
if (is->ic) {
|
|
av_close_input_file(is->ic);
|
|
is->ic = NULL; /* safety */
|
|
}
|
|
avio_set_interrupt_cb(NULL);
|
|
|
|
if (ret != 0) {
|
|
SDL_Event event;
|
|
|
|
event.type = FF_QUIT_EVENT;
|
|
event.user.data1 = is;
|
|
SDL_PushEvent(&event);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
|
|
{
|
|
VideoState *is;
|
|
|
|
is = av_mallocz(sizeof(VideoState));
|
|
if (!is)
|
|
return NULL;
|
|
av_strlcpy(is->filename, filename, sizeof(is->filename));
|
|
is->iformat = iformat;
|
|
is->ytop = 0;
|
|
is->xleft = 0;
|
|
|
|
/* start video display */
|
|
is->pictq_mutex = SDL_CreateMutex();
|
|
is->pictq_cond = SDL_CreateCond();
|
|
|
|
is->subpq_mutex = SDL_CreateMutex();
|
|
is->subpq_cond = SDL_CreateCond();
|
|
|
|
is->av_sync_type = av_sync_type;
|
|
is->read_tid = SDL_CreateThread(read_thread, is);
|
|
if (!is->read_tid) {
|
|
av_free(is);
|
|
return NULL;
|
|
}
|
|
return is;
|
|
}
|
|
|
|
static void stream_cycle_channel(VideoState *is, int codec_type)
|
|
{
|
|
AVFormatContext *ic = is->ic;
|
|
int start_index, stream_index;
|
|
AVStream *st;
|
|
|
|
if (codec_type == AVMEDIA_TYPE_VIDEO)
|
|
start_index = is->video_stream;
|
|
else if (codec_type == AVMEDIA_TYPE_AUDIO)
|
|
start_index = is->audio_stream;
|
|
else
|
|
start_index = is->subtitle_stream;
|
|
if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
|
|
return;
|
|
stream_index = start_index;
|
|
for(;;) {
|
|
if (++stream_index >= is->ic->nb_streams)
|
|
{
|
|
if (codec_type == AVMEDIA_TYPE_SUBTITLE)
|
|
{
|
|
stream_index = -1;
|
|
goto the_end;
|
|
} else
|
|
stream_index = 0;
|
|
}
|
|
if (stream_index == start_index)
|
|
return;
|
|
st = ic->streams[stream_index];
|
|
if (st->codec->codec_type == codec_type) {
|
|
/* check that parameters are OK */
|
|
switch(codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
if (st->codec->sample_rate != 0 &&
|
|
st->codec->channels != 0)
|
|
goto the_end;
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
goto the_end;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
the_end:
|
|
stream_component_close(is, start_index);
|
|
stream_component_open(is, stream_index);
|
|
}
|
|
|
|
|
|
static void toggle_full_screen(VideoState *is)
|
|
{
|
|
is_full_screen = !is_full_screen;
|
|
video_open(is);
|
|
}
|
|
|
|
static void toggle_pause(VideoState *is)
|
|
{
|
|
stream_toggle_pause(is);
|
|
is->step = 0;
|
|
}
|
|
|
|
static void step_to_next_frame(VideoState *is)
|
|
{
|
|
/* if the stream is paused unpause it, then step */
|
|
if (is->paused)
|
|
stream_toggle_pause(is);
|
|
is->step = 1;
|
|
}
|
|
|
|
static void toggle_audio_display(VideoState *is)
|
|
{
|
|
int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
|
|
is->show_mode = (is->show_mode + 1) % SHOW_MODE_NB;
|
|
fill_rectangle(screen,
|
|
is->xleft, is->ytop, is->width, is->height,
|
|
bgcolor);
|
|
SDL_UpdateRect(screen, is->xleft, is->ytop, is->width, is->height);
|
|
}
|
|
|
|
/* handle an event sent by the GUI */
|
|
static void event_loop(VideoState *cur_stream)
|
|
{
|
|
SDL_Event event;
|
|
double incr, pos, frac;
|
|
|
|
for(;;) {
|
|
double x;
|
|
SDL_WaitEvent(&event);
|
|
switch(event.type) {
|
|
case SDL_KEYDOWN:
|
|
if (exit_on_keydown) {
|
|
do_exit(cur_stream);
|
|
break;
|
|
}
|
|
switch(event.key.keysym.sym) {
|
|
case SDLK_ESCAPE:
|
|
case SDLK_q:
|
|
do_exit(cur_stream);
|
|
break;
|
|
case SDLK_f:
|
|
toggle_full_screen(cur_stream);
|
|
break;
|
|
case SDLK_p:
|
|
case SDLK_SPACE:
|
|
toggle_pause(cur_stream);
|
|
break;
|
|
case SDLK_s: //S: Step to next frame
|
|
step_to_next_frame(cur_stream);
|
|
break;
|
|
case SDLK_a:
|
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
|
|
break;
|
|
case SDLK_v:
|
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
|
|
break;
|
|
case SDLK_t:
|
|
stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
|
|
break;
|
|
case SDLK_w:
|
|
toggle_audio_display(cur_stream);
|
|
break;
|
|
case SDLK_LEFT:
|
|
incr = -10.0;
|
|
goto do_seek;
|
|
case SDLK_RIGHT:
|
|
incr = 10.0;
|
|
goto do_seek;
|
|
case SDLK_UP:
|
|
incr = 60.0;
|
|
goto do_seek;
|
|
case SDLK_DOWN:
|
|
incr = -60.0;
|
|
do_seek:
|
|
if (seek_by_bytes) {
|
|
if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
|
|
pos= cur_stream->video_current_pos;
|
|
}else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
|
|
pos= cur_stream->audio_pkt.pos;
|
|
}else
|
|
pos = avio_tell(cur_stream->ic->pb);
|
|
if (cur_stream->ic->bit_rate)
|
|
incr *= cur_stream->ic->bit_rate / 8.0;
|
|
else
|
|
incr *= 180000.0;
|
|
pos += incr;
|
|
stream_seek(cur_stream, pos, incr, 1);
|
|
} else {
|
|
pos = get_master_clock(cur_stream);
|
|
pos += incr;
|
|
stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case SDL_MOUSEBUTTONDOWN:
|
|
if (exit_on_mousedown) {
|
|
do_exit(cur_stream);
|
|
break;
|
|
}
|
|
case SDL_MOUSEMOTION:
|
|
if(event.type ==SDL_MOUSEBUTTONDOWN){
|
|
x= event.button.x;
|
|
}else{
|
|
if(event.motion.state != SDL_PRESSED)
|
|
break;
|
|
x= event.motion.x;
|
|
}
|
|
if(seek_by_bytes || cur_stream->ic->duration<=0){
|
|
uint64_t size= avio_size(cur_stream->ic->pb);
|
|
stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
|
|
}else{
|
|
int64_t ts;
|
|
int ns, hh, mm, ss;
|
|
int tns, thh, tmm, tss;
|
|
tns = cur_stream->ic->duration/1000000LL;
|
|
thh = tns/3600;
|
|
tmm = (tns%3600)/60;
|
|
tss = (tns%60);
|
|
frac = x/cur_stream->width;
|
|
ns = frac*tns;
|
|
hh = ns/3600;
|
|
mm = (ns%3600)/60;
|
|
ss = (ns%60);
|
|
fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
|
|
hh, mm, ss, thh, tmm, tss);
|
|
ts = frac*cur_stream->ic->duration;
|
|
if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
|
|
ts += cur_stream->ic->start_time;
|
|
stream_seek(cur_stream, ts, 0, 0);
|
|
}
|
|
break;
|
|
case SDL_VIDEORESIZE:
|
|
screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
|
|
SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
|
|
screen_width = cur_stream->width = event.resize.w;
|
|
screen_height= cur_stream->height= event.resize.h;
|
|
break;
|
|
case SDL_QUIT:
|
|
case FF_QUIT_EVENT:
|
|
do_exit(cur_stream);
|
|
break;
|
|
case FF_ALLOC_EVENT:
|
|
video_open(event.user.data1);
|
|
alloc_picture(event.user.data1);
|
|
break;
|
|
case FF_REFRESH_EVENT:
|
|
video_refresh(event.user.data1);
|
|
cur_stream->refresh=0;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int opt_frame_size(const char *opt, const char *arg)
|
|
{
|
|
av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
|
|
return opt_default("video_size", arg);
|
|
}
|
|
|
|
static int opt_width(const char *opt, const char *arg)
|
|
{
|
|
screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
|
|
return 0;
|
|
}
|
|
|
|
static int opt_height(const char *opt, const char *arg)
|
|
{
|
|
screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
|
|
return 0;
|
|
}
|
|
|
|
static int opt_format(const char *opt, const char *arg)
|
|
{
|
|
file_iformat = av_find_input_format(arg);
|
|
if (!file_iformat) {
|
|
fprintf(stderr, "Unknown input format: %s\n", arg);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int opt_frame_pix_fmt(const char *opt, const char *arg)
|
|
{
|
|
av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
|
|
return opt_default("pixel_format", arg);
|
|
}
|
|
|
|
static int opt_sync(const char *opt, const char *arg)
|
|
{
|
|
if (!strcmp(arg, "audio"))
|
|
av_sync_type = AV_SYNC_AUDIO_MASTER;
|
|
else if (!strcmp(arg, "video"))
|
|
av_sync_type = AV_SYNC_VIDEO_MASTER;
|
|
else if (!strcmp(arg, "ext"))
|
|
av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
|
|
else {
|
|
fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
|
|
exit(1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int opt_seek(const char *opt, const char *arg)
|
|
{
|
|
start_time = parse_time_or_die(opt, arg, 1);
|
|
return 0;
|
|
}
|
|
|
|
static int opt_duration(const char *opt, const char *arg)
|
|
{
|
|
duration = parse_time_or_die(opt, arg, 1);
|
|
return 0;
|
|
}
|
|
|
|
static int opt_show_mode(const char *opt, const char *arg)
|
|
{
|
|
show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
|
|
!strcmp(arg, "waves") ? SHOW_MODE_WAVES :
|
|
!strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
|
|
parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
|
|
return 0;
|
|
}
|
|
|
|
static void opt_input_file(void *optctx, const char *filename)
|
|
{
|
|
if (input_filename) {
|
|
fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
|
|
filename, input_filename);
|
|
exit_program(1);
|
|
}
|
|
if (!strcmp(filename, "-"))
|
|
filename = "pipe:";
|
|
input_filename = filename;
|
|
}
|
|
|
|
static int opt_codec(void *o, const char *opt, const char *arg)
|
|
{
|
|
switch(opt[strlen(opt)-1]){
|
|
case 'a' : audio_codec_name = arg; break;
|
|
case 's' : subtitle_codec_name = arg; break;
|
|
case 'v' : video_codec_name = arg; break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int dummy;
|
|
|
|
static const OptionDef options[] = {
|
|
#include "cmdutils_common_opts.h"
|
|
{ "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
|
|
{ "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
|
|
{ "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
|
|
{ "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
|
|
{ "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
|
|
{ "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
|
|
{ "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
|
|
{ "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
|
|
{ "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
|
|
{ "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
|
|
{ "t", HAS_ARG, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
|
|
{ "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
|
|
{ "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
|
|
{ "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
|
|
{ "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
|
|
{ "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
|
|
{ "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
|
|
{ "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
|
|
{ "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
|
|
{ "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
|
|
{ "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
|
|
{ "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
|
|
{ "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
|
|
{ "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
|
|
{ "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
|
|
{ "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
|
|
{ "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
|
|
{ "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
|
|
{ "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
|
|
{ "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
|
|
{ "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
|
|
{ "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
|
|
{ "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
|
|
{ "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
|
|
#if CONFIG_AVFILTER
|
|
{ "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
|
|
#endif
|
|
{ "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
|
|
{ "showmode", HAS_ARG, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
|
|
{ "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
|
|
{ "i", OPT_BOOL, {(void *)&dummy}, "read specified file", "input_file"},
|
|
{ "codec", HAS_ARG | OPT_FUNC2, {(void*)opt_codec}, "force decoder", "decoder" },
|
|
{ NULL, },
|
|
};
|
|
|
|
static void show_usage(void)
|
|
{
|
|
printf("Simple media player\n");
|
|
printf("usage: %s [options] input_file\n", program_name);
|
|
printf("\n");
|
|
}
|
|
|
|
static int opt_help(const char *opt, const char *arg)
|
|
{
|
|
const AVClass *class;
|
|
av_log_set_callback(log_callback_help);
|
|
show_usage();
|
|
show_help_options(options, "Main options:\n",
|
|
OPT_EXPERT, 0);
|
|
show_help_options(options, "\nAdvanced options:\n",
|
|
OPT_EXPERT, OPT_EXPERT);
|
|
printf("\n");
|
|
class = avcodec_get_class();
|
|
av_opt_show2(&class, NULL,
|
|
AV_OPT_FLAG_DECODING_PARAM, 0);
|
|
printf("\n");
|
|
class = avformat_get_class();
|
|
av_opt_show2(&class, NULL,
|
|
AV_OPT_FLAG_DECODING_PARAM, 0);
|
|
#if !CONFIG_AVFILTER
|
|
printf("\n");
|
|
class = sws_get_class();
|
|
av_opt_show2(&class, NULL,
|
|
AV_OPT_FLAG_ENCODING_PARAM, 0);
|
|
#endif
|
|
printf("\nWhile playing:\n"
|
|
"q, ESC quit\n"
|
|
"f toggle full screen\n"
|
|
"p, SPC pause\n"
|
|
"a cycle audio channel\n"
|
|
"v cycle video channel\n"
|
|
"t cycle subtitle channel\n"
|
|
"w show audio waves\n"
|
|
"s activate frame-step mode\n"
|
|
"left/right seek backward/forward 10 seconds\n"
|
|
"down/up seek backward/forward 1 minute\n"
|
|
"mouse click seek to percentage in file corresponding to fraction of width\n"
|
|
);
|
|
return 0;
|
|
}
|
|
|
|
static int lockmgr(void **mtx, enum AVLockOp op)
|
|
{
|
|
switch(op) {
|
|
case AV_LOCK_CREATE:
|
|
*mtx = SDL_CreateMutex();
|
|
if(!*mtx)
|
|
return 1;
|
|
return 0;
|
|
case AV_LOCK_OBTAIN:
|
|
return !!SDL_LockMutex(*mtx);
|
|
case AV_LOCK_RELEASE:
|
|
return !!SDL_UnlockMutex(*mtx);
|
|
case AV_LOCK_DESTROY:
|
|
SDL_DestroyMutex(*mtx);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* Called from the main */
|
|
int main(int argc, char **argv)
|
|
{
|
|
int flags;
|
|
VideoState *is;
|
|
|
|
av_log_set_flags(AV_LOG_SKIP_REPEATED);
|
|
parse_loglevel(argc, argv, options);
|
|
|
|
/* register all codecs, demux and protocols */
|
|
avcodec_register_all();
|
|
#if CONFIG_AVDEVICE
|
|
avdevice_register_all();
|
|
#endif
|
|
#if CONFIG_AVFILTER
|
|
avfilter_register_all();
|
|
#endif
|
|
av_register_all();
|
|
|
|
init_opts();
|
|
|
|
show_banner();
|
|
|
|
parse_options(NULL, argc, argv, options, opt_input_file);
|
|
|
|
if (!input_filename) {
|
|
show_usage();
|
|
fprintf(stderr, "An input file must be specified\n");
|
|
fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
|
|
exit(1);
|
|
}
|
|
|
|
if (display_disable) {
|
|
video_disable = 1;
|
|
}
|
|
flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
|
|
if (audio_disable)
|
|
flags &= ~SDL_INIT_AUDIO;
|
|
#if !defined(__MINGW32__) && !defined(__APPLE__)
|
|
flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
|
|
#endif
|
|
if (SDL_Init (flags)) {
|
|
fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
|
|
fprintf(stderr, "(Did you set the DISPLAY variable?)\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (!display_disable) {
|
|
#if HAVE_SDL_VIDEO_SIZE
|
|
const SDL_VideoInfo *vi = SDL_GetVideoInfo();
|
|
fs_screen_width = vi->current_w;
|
|
fs_screen_height = vi->current_h;
|
|
#endif
|
|
}
|
|
|
|
SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
|
|
SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
|
|
SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
|
|
|
|
if (av_lockmgr_register(lockmgr)) {
|
|
fprintf(stderr, "Could not initialize lock manager!\n");
|
|
do_exit(NULL);
|
|
}
|
|
|
|
av_init_packet(&flush_pkt);
|
|
flush_pkt.data= "FLUSH";
|
|
|
|
is = stream_open(input_filename, file_iformat);
|
|
if (!is) {
|
|
fprintf(stderr, "Failed to initialize VideoState!\n");
|
|
do_exit(NULL);
|
|
}
|
|
|
|
event_loop(is);
|
|
|
|
/* never returns */
|
|
|
|
return 0;
|
|
}
|