235 lines
8.0 KiB
C++
235 lines
8.0 KiB
C++
#ifndef FF_FFPLAY_H
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#define FF_FFPLAY_H
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#include <thread>
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#include <functional>
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#include "ffmsg_queue.h"
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#include "ff_ffplay_def.h"
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#include "sonic.h"
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extern "C" {
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#include "libavcodec/avcodec.h"
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}
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class Decoder
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{
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public:
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int packet_pending_ = 0;
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AVPacket pkt_;
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PacketQueue *queue_; // 数据包队列
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AVCodecContext *avctx_; // 解码器上下文
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int pkt_serial_; // 包序列
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int finished_; // =0，解码器处于工作状态；=非0，解码器处于空闲状态
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std::thread *decoder_thread_ = NULL;
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int64_t start_pts;
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AVRational start_pts_tb;
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int64_t next_pts;
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AVRational next_pts_tb;
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Decoder();
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~Decoder();
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void decoder_init(AVCodecContext *avctx, PacketQueue *queue);
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// 创建和启动线程
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int decoder_start(enum AVMediaType codec_type, const char *thread_name, void* arg);
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// 停止线程
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void decoder_abort(FrameQueue *fq);
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void decoder_destroy();
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int decoder_decode_frame(AVFrame *frame);
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int get_video_frame(AVFrame *frame);
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int queue_picture(FrameQueue *fq, AVFrame *src_frame, double pts,
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double duration, int64_t pos, int serial);
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int audio_thread(void* arg);
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int video_thread(void* arg);
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};
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class FFPlayer
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{
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public:
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FFPlayer();
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int ffp_create();
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void ffp_destroy();
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int ffp_prepare_async_l(char *file_name);
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// 播放控制
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int ffp_start_l();
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int ffp_stop_l();
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int stream_open( const char *file_name);
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void stream_close();
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// 打开指定stream对应解码器、创建解码线程、以及初始化对应的输出
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int stream_component_open(int stream_index);
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// 关闭指定stream的解码线程，释放解码器资源
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void stream_component_close(int stream_index);
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int audio_open(int64_t wanted_channel_layout,
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int wanted_nb_channels, int wanted_sample_rate,
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struct AudioParams *audio_hw_params);
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void audio_close();
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//获取播放时长
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long ffp_get_duration_l();
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long ffp_get_current_position_l();
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// 暂停恢复
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int ffp_pause_l();
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void toggle_pause(int pause_on);
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void toggle_pause_l(int pause_on);
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void stream_update_pause_l();
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void stream_toggle_pause_l(int pause_on);
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// seek相关
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int ffp_seek_to_l(long msec);
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// 单位是秒 整数
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int ffp_forward_to_l(long incr);
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// 单位是秒 负数
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int ffp_back_to_l(long incr);
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int ffp_forward_or_back_to_l(long incr);
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void stream_seek(int64_t pos, int64_t rel, int seek_by_bytes);
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// 截屏相关
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int ffp_screenshot_l(char *screen_path);
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void screenshot(AVFrame *frame);
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// 变速相关
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int get_target_frequency();
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int get_target_channels();
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void ffp_set_playback_rate(float rate);
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float ffp_get_playback_rate();
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bool is_normal_playback_rate();
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int ffp_get_playback_rate_change();
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void ffp_set_playback_rate_change(int change);
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//音量相关
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void ffp_set_playback_volume(int value);
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//播放完毕相关判断 1. av_read_frame返回eof; 2. audio没有数据可以输出; 3.video没有数据可以输出
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void check_play_finish(); //如果已经结束则通知ui调用停止函数
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// 供外包获取信息
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int64_t ffp_get_property_int64(int id, int64_t default_value);
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void ffp_track_statistic_l(AVStream *st, PacketQueue *q, FFTrackCacheStatistic *cache);
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void ffp_audio_statistic_l();
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void ffp_video_statistic_l();
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MessageQueue msg_queue_;
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char *input_filename_;
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int realtime = 0;
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int stream_has_enough_packets(AVStream *st, int stream_id, PacketQueue *queue);
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int read_thread();
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std::thread *read_thread_;
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int video_refresh_thread();
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void video_refresh(double *remaining_time);
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double vp_duration( Frame *vp, Frame *nextvp);
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double compute_target_delay(double delay);
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void update_video_pts(double pts, int64_t pos, int serial);
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// 视频画面输出相关
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std::thread *video_refresh_thread_ = NULL;
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std::function<int(const Frame *)> video_refresh_callback_ = NULL;
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void AddVideoRefreshCallback(std::function<int(const Frame *)> callback);
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int get_master_sync_type();
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double get_master_clock();
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int av_sync_type = AV_SYNC_AUDIO_MASTER; // 音视频同步类型, 默认audio master
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Clock audclk; // 音频时钟
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Clock vidclk; // 视频时钟
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// Clock extclk;
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double audio_clock = 0; // 当前音频帧的PTS+当前帧Duration
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int audio_clock_serial; // 播放序列，seek可改变此值, 解码后保存
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int64_t audio_callback_time = 0;
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// 帧队列
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FrameQueue pictq; // 视频Frame队列
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FrameQueue sampq; // 采样Frame队列
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// 包队列
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PacketQueue audioq; // 音频packet队列
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PacketQueue videoq; // 视频队列
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int abort_request = 0;
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AVStream *audio_st = NULL; // 音频流
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AVStream *video_st = NULL; // 音频流
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int force_refresh = 0;
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double frame_timer = 0;
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int audio_stream = -1;
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int video_stream = -1;
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Decoder auddec; // 音频解码器
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Decoder viddec; // 视频解码器
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int eof = 0;
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int audio_no_data = 0;
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int video_no_data = 0;
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AVFormatContext *ic = NULL;
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int paused = 0;
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// 音频输出相关
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struct AudioParams audio_src; // 保存最新解码的音频参数
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struct AudioParams audio_tgt; // 保存SDL音频输出需要的参数
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struct SwrContext *swr_ctx = NULL; // 音频重采样context
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int audio_hw_buf_size = 0; // SDL音频缓冲区的大小(字节为单位)
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// 指向待播放的一帧音频数据，指向的数据区将被拷入SDL音频缓冲区。若经过重采样则指向audio_buf1，
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// 否则指向frame中的音频
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uint8_t *audio_buf = NULL; // 指向需要重采样的数据
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uint8_t *audio_buf1 = NULL; // 指向重采样后的数据
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unsigned int audio_buf_size = 0; // 待播放的一帧音频数据(audio_buf指向)的大小
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unsigned int audio_buf1_size = 0; // 申请到的音频缓冲区audio_buf1的实际尺寸
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int audio_buf_index = 0; // 更新拷贝位置 当前音频帧中已拷入SDL音频缓冲区
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int audio_write_buf_size;
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int audio_volume = 50; // 音量相关
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int startup_volume = 50; // 起始音量
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// seek相关
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int64_t seek_req = 0;
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int64_t seek_rel = 0;
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int64_t seek_flags = 0;
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int64_t seek_pos = 0; // seek的位置
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// 截屏相关
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bool req_screenshot_ = false;
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char *screen_path_ = NULL;
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//单步运行
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int step = 0;
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int framedrop = 1;
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int frame_drops_late = 0;
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int pause_req = 0;
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int auto_resume = 0;
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int buffering_on = 0;
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// 变速相关
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float pf_playback_rate = 1.0; // 播放速率
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int pf_playback_rate_changed = 0; // 播放速率改变
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// 变速相关
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sonicStreamStruct *audio_speed_convert = nullptr;
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int max_frame_duration = 3600;
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// 统计相关的操作
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FFStatistic stat;
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};
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inline static void ffp_notify_msg1(FFPlayer *ffp, int what)
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{
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msg_queue_put_simple3(&ffp->msg_queue_, what, 0, 0);
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}
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inline static void ffp_notify_msg2(FFPlayer *ffp, int what, int arg1)
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{
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msg_queue_put_simple3(&ffp->msg_queue_, what, arg1, 0);
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}
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inline static void ffp_notify_msg3(FFPlayer *ffp, int what, int arg1, int arg2)
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{
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msg_queue_put_simple3(&ffp->msg_queue_, what, arg1, arg2);
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}
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inline static void ffp_notify_msg4(FFPlayer *ffp, int what, int arg1, int arg2, void *obj, int obj_len)
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{
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msg_queue_put_simple4(&ffp->msg_queue_, what, arg1, arg2, obj, obj_len);
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}
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inline static void ffp_remove_msg(FFPlayer *ffp, int what)
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{
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msg_queue_remove(&ffp->msg_queue_, what);
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}
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#endif // FF_FFPLAY_H
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