mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-27 13:49:01 +08:00
188 lines
6.4 KiB
C++
188 lines
6.4 KiB
C++
/*
|
||
* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
|
||
*
|
||
* This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
|
||
*
|
||
* Use of this source code is governed by MIT license that can be found in the
|
||
* LICENSE file in the root of the source tree. All contributing project authors
|
||
* may be found in the AUTHORS file in the root of the source tree.
|
||
*/
|
||
|
||
#ifndef ZLMEDIAKIT_MK_TRANSCODE_H
|
||
#define ZLMEDIAKIT_MK_TRANSCODE_H
|
||
|
||
#include "mk_common.h"
|
||
#include "mk_track.h"
|
||
#include "mk_tcp.h"
|
||
|
||
#ifdef __cplusplus
|
||
extern "C" {
|
||
#endif
|
||
|
||
//解码器对象
|
||
typedef struct mk_decoder_t *mk_decoder;
|
||
//解码后的frame
|
||
typedef struct mk_frame_pix_t *mk_frame_pix;
|
||
//SwsContext的包装
|
||
typedef struct mk_swscale_t *mk_swscale;
|
||
//FFmpeg原始解码帧对象
|
||
typedef struct AVFrame AVFrame;
|
||
//FFmpeg编解码器对象
|
||
typedef struct AVCodecContext AVCodecContext;
|
||
//解码输出回调
|
||
typedef void(API_CALL *on_mk_decode)(void *user_data, mk_frame_pix frame);
|
||
|
||
/**
|
||
* 创建解码器
|
||
* @param track track对象
|
||
* @param thread_num 解码线程数，0时为自动
|
||
* @return 返回解码器对象，NULL代表失败
|
||
*/
|
||
API_EXPORT mk_decoder API_CALL mk_decoder_create(mk_track track, int thread_num);
|
||
|
||
/**
|
||
* 创建解码器
|
||
* @param track track对象
|
||
* @param thread_num 解码线程数，0时为自动
|
||
* @param codec_name_list 偏好的ffmpeg codec name列表，以NULL结尾，譬如：{"libopenh264", "h264_nvdec", NULL};
|
||
* 在数组中越前，优先级越高;如果指定的codec不存在，或跟mk_track_codec_id类型不匹配时，则使用内部默认codec列表
|
||
* @return 返回解码器对象，NULL代表失败
|
||
*/
|
||
API_EXPORT mk_decoder API_CALL mk_decoder_create2(mk_track track, int thread_num, const char *codec_name_list[]);
|
||
|
||
/**
|
||
* 销毁解码器
|
||
* @param ctx 解码器对象
|
||
* @param flush_frame 是否等待所有帧解码成功
|
||
*/
|
||
API_EXPORT void API_CALL mk_decoder_release(mk_decoder ctx, int flush_frame);
|
||
|
||
/**
|
||
* 解码音视频帧
|
||
* @param ctx 解码器
|
||
* @param frame 帧对象
|
||
* @param async 是否异步解码
|
||
* @param enable_merge 是否合并帧解码，有些情况下，需要把时间戳相同的slice合并输入到解码器才能解码
|
||
*/
|
||
API_EXPORT void API_CALL mk_decoder_decode(mk_decoder ctx, mk_frame frame, int async, int enable_merge);
|
||
|
||
/**
|
||
* 设置异步解码最大帧缓存积压数限制
|
||
*/
|
||
API_EXPORT void API_CALL mk_decoder_set_max_async_frame_size(mk_decoder ctx, size_t size);
|
||
|
||
/**
|
||
* 设置解码输出回调
|
||
* @param ctx 解码器
|
||
* @param cb 回调函数
|
||
* @param user_data 回调函数用户指针参数
|
||
*/
|
||
API_EXPORT void API_CALL mk_decoder_set_cb(mk_decoder ctx, on_mk_decode cb, void *user_data);
|
||
API_EXPORT void API_CALL mk_decoder_set_cb2(mk_decoder ctx, on_mk_decode cb, void *user_data, on_user_data_free user_data_free);
|
||
|
||
/**
|
||
* 获取FFmpeg原始AVCodecContext对象
|
||
* @param ctx 解码器
|
||
*/
|
||
API_EXPORT const AVCodecContext* API_CALL mk_decoder_get_context(mk_decoder ctx);
|
||
|
||
/////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
||
/**
|
||
* 创建解码帧mk_frame_pix新引用
|
||
* @param frame 原始引用
|
||
* @return 新引用
|
||
*/
|
||
API_EXPORT mk_frame_pix API_CALL mk_frame_pix_ref(mk_frame_pix frame);
|
||
|
||
/**
|
||
* 解码帧mk_frame_pix减引用
|
||
* @param frame 原始引用
|
||
*/
|
||
API_EXPORT void API_CALL mk_frame_pix_unref(mk_frame_pix frame);
|
||
|
||
/**
|
||
* 从FFmpeg AVFrame转换为mk_frame_pix
|
||
* @param frame FFmpeg AVFrame
|
||
* @return mk_frame_pix对象
|
||
*/
|
||
API_EXPORT mk_frame_pix API_CALL mk_frame_pix_from_av_frame(AVFrame *frame);
|
||
|
||
/**
|
||
* 可无内存拷贝的创建mk_frame_pix对象
|
||
* @param plane_data 多个平面数据, 通过mk_buffer_get_data获取其数据指针
|
||
* @param line_size 平面数据line size
|
||
* @param plane 数据平面个数
|
||
* @return mk_frame_pix对象
|
||
*/
|
||
API_EXPORT mk_frame_pix API_CALL mk_frame_pix_from_buffer(mk_buffer plane_data[], int line_size[], int plane);
|
||
|
||
/**
|
||
* 获取FFmpeg AVFrame对象
|
||
* @param frame 解码帧mk_frame_pix
|
||
* @return FFmpeg AVFrame对象
|
||
*/
|
||
API_EXPORT AVFrame* API_CALL mk_frame_pix_get_av_frame(mk_frame_pix frame);
|
||
|
||
/////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
||
/**
|
||
* 创建ffmpeg SwsContext wrapper实例
|
||
* @param output AVPixelFormat类型，AV_PIX_FMT_BGR24==3
|
||
* @param width 目标宽度，置0时，则与输入时一致
|
||
* @param height 目标高度，置0时，则与输入时一致
|
||
* @return SwsContext wrapper 实例
|
||
*/
|
||
API_EXPORT mk_swscale mk_swscale_create(int output, int width, int height);
|
||
|
||
/**
|
||
* 释放ffmpeg SwsContext wrapper实例
|
||
* @param ctx SwsContext wrapper实例
|
||
*/
|
||
API_EXPORT void mk_swscale_release(mk_swscale ctx);
|
||
|
||
/**
|
||
* 使用SwsContext转换pix format
|
||
* @param ctx SwsContext wrapper实例
|
||
* @param frame pix frame
|
||
* @param out 转换后存放的数据指针，用户需要确保提前申请并大小足够
|
||
* @return sws_scale()返回值：the height of the output slice
|
||
*/
|
||
API_EXPORT int mk_swscale_input_frame(mk_swscale ctx, mk_frame_pix frame, uint8_t *out);
|
||
|
||
/**
|
||
* 使用SwsContext转换pix format
|
||
* @param ctx SwsContext wrapper实例
|
||
* @param frame pix frame
|
||
* @return 新的pix frame对象，需要使用mk_frame_pix_unref销毁
|
||
*/
|
||
API_EXPORT mk_frame_pix mk_swscale_input_frame2(mk_swscale ctx, mk_frame_pix frame);
|
||
|
||
/////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
||
API_EXPORT uint8_t **API_CALL mk_get_av_frame_data(AVFrame *frame);
|
||
API_EXPORT void API_CALL mk_set_av_frame_data(AVFrame *frame, uint8_t *data, int plane);
|
||
|
||
API_EXPORT int *API_CALL mk_get_av_frame_line_size(AVFrame *frame);
|
||
API_EXPORT void API_CALL mk_set_av_frame_line_size(AVFrame *frame, int line_size, int plane);
|
||
|
||
API_EXPORT int64_t API_CALL mk_get_av_frame_dts(AVFrame *frame);
|
||
API_EXPORT void API_CALL mk_set_av_frame_dts(AVFrame *frame, int64_t dts);
|
||
|
||
API_EXPORT int64_t API_CALL mk_get_av_frame_pts(AVFrame *frame);
|
||
API_EXPORT void API_CALL mk_set_av_frame_pts(AVFrame *frame, int64_t pts);
|
||
|
||
API_EXPORT int API_CALL mk_get_av_frame_width(AVFrame *frame);
|
||
API_EXPORT void API_CALL mk_set_av_frame_width(AVFrame *frame, int width);
|
||
|
||
API_EXPORT int API_CALL mk_get_av_frame_height(AVFrame *frame);
|
||
API_EXPORT void API_CALL mk_set_av_frame_height(AVFrame *frame, int height);
|
||
|
||
API_EXPORT int API_CALL mk_get_av_frame_format(AVFrame *frame);
|
||
API_EXPORT void API_CALL mk_set_av_frame_format(AVFrame *frame, int format);
|
||
|
||
#ifdef __cplusplus
|
||
}
|
||
#endif
|
||
|
||
#endif //ZLMEDIAKIT_MK_TRANSCODE_H
|