# VideoToolboxPlus

**Repository Path**: shuyj/VideoToolboxPlus

## Basic Information

- **Project Name**: VideoToolboxPlus
- **Description**: 硬编码YUV 不在需要自己封装CMSampleBuffer
- **Primary Language**: Objective-C
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2020-03-09
- **Last Updated**: 2022-05-11

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

#VideoToolboxPlus
Objective-C wrapper for and additions to VideoToolbox
还在为封装CMSampleBuffer编码失败烦恼吗？失败大多数是由于硬编中只认由iosurface申请来的内存。
现在封装了编码yuv420p当然也可参考封装的方法进行其它格式的的封装。

###usage
```objectivec
    [[VTPCompressionSession alloc] initWithWidth:1280 height:720 pix_fmt:kCVPixelFormatType_420YpCbCr8Planar<br> codec:kCMVideoCodecType_H264 error:&verror];

parameter setting:
    [mVideoEncode setRealtime:TRUE error:&seterr]; // zero delay
    [mVideoEncode setProfileLevel:(__bridge NSString*)kVTProfileLevel_H264_Baseline_AutoLevel error:&seterr];// profile
    [mVideoEncode setMaxKeyframeInterval:25 error:&seterr];// fps but I frame interval need use encodeXXX funcation assign
    [mVideoEncode setH264EntropyMode:(__bridge NSString*)kVTH264EntropyMode_CAVLC error:&seterr];// CAVLC CABAC
    [mVideoEncode setAverageBitrate:500000 error:&seterr]; // average bitrate 
    dispatch_queue_t encode_queue = dispatch_queue_create("encode.video.h264", NULL);
    [mVideoEncode setDelegate:mVideoEncodeDelegate queue:encode_queue]; // encode delegate assign
init
    [mVideoEncode prepare];

encode funcations:
    encodeYuv420pBytes  encodePixelBuffer  encodeSampleBuffer
custom data fillmode:
    PixelBufferPoolCreatePixelBuffer; // create CVPixelBufferRef from BufferPool
    encodePixelBufferFromPool; // encode
uninit
    [mVideoEncode finish];