private void InitializeConverters(bool shouldResize)
{
var videoStreamIndex = Array.FindIndex(_StreamsContextArr, x => x.DecoderContext->codec_type == AVMediaType.AVMEDIA_TYPE_VIDEO);
if (videoStreamIndex < 0)
{
throw new Exception("No video stream found");
}
if (shouldResize)
{
var decoderContext = _StreamsContextArr[videoStreamIndex].DecoderContext;
_videoConverter = new VideoFrameConverter(new Size(decoderContext->width, decoderContext->height),
decoderContext->pix_fmt,
_size,
TARGET_PIX_FORMAT);
}
var audioStreamIndex = Array.FindIndex(_StreamsContextArr, x => x.DecoderContext->codec_type == AVMediaType.AVMEDIA_TYPE_AUDIO);
if (audioStreamIndex > -1)
{
_audioConverter = new AudioFrameConverter(_StreamsContextArr[audioStreamIndex].EncoderContext,
_StreamsContextArr[audioStreamIndex].DecoderContext);
}
}
public void Dispose()
{
if (_videoConverter != null)
{
_videoConverter.Dispose();
_videoConverter = null;
}
if (_audioConverter != null)
{
_audioConverter.Dispose();
_audioConverter = null;
}
_outputName = null;
_inputName = null;
_validStreamIndexes = null;
for (int i = 0; i < _StreamsContextArr.Length; i++)
{
fixed(AVCodecContext **ptr = &_StreamsContextArr[i].DecoderContext)
{
ffmpeg.avcodec_free_context(ptr);
}
if (_pOutputFmCtx != null && _StreamsContextArr.Length > i && _pOutputFmCtx->streams[i] != null && _StreamsContextArr[i].EncoderContext != null)
{
fixed(AVCodecContext **ptr = &_StreamsContextArr[i].EncoderContext)
{
ffmpeg.avcodec_free_context(ptr);
}
}
}
fixed(AVFormatContext **ptr = &_pInputFmtCtx)
{
ffmpeg.avformat_close_input(ptr);
}
if (_pOutputFmCtx != null && (_pOutputFmCtx->oformat->flags & ffmpeg.AVFMT_NOFILE) == 0)
{
ffmpeg.avio_closep(&_pOutputFmCtx->pb);
}
ffmpeg.avformat_free_context(_pOutputFmCtx);
_pOutputFmCtx = null;
ffmpeg.avformat_free_context(_pInputFmtCtx);
_pInputFmtCtx = null;
if (_pReusablePacket != null)
{
FreePacket(realloc: false);
}
if (_pReusableFrame != null)
{
FreeFrame(realloc: false);
}
_StreamsContextArr = null;
}