压缩后出现黑屏，只有声音

[HobaoKing]

使用手机录制，压缩后黑屏

[lihaojie]

我也遇到了、

[breezewind-yang]

有解决方案吗

[xiaogehenjimo]

有解决方法吗 @breezewind-yang @lihaojie @HobaoKing

[sheodon]

• (CGAffineTransform)transformFromDegress:(float)degress natureSize:(CGSize)natureSize{ /** 矩阵校正 */ // x = ax1 + cy1 + tx,y = bx1 + dy2 + ty if (degress == 90) { return CGAffineTransformMake(0, 1, -1, 0, natureSize.height, 0); }else if (degress == 180){ return CGAffineTransformMake(-1, 0, 0, -1, natureSize.width , natureSize .height); }else if (degress == 270){ return CGAffineTransformMake(0, -1, 1, 0, 0, natureSize.width); //视频压缩/合成出现黑屏现象 // return CGAffineTransformMake(0, -1, 1, 0, -natureSize.height, 2 * natureSize.width); }else{ return CGAffineTransformIdentity; } }