public FFmpegContext(AVCodecID codecId)
{
_codec = ffmpeg.avcodec_find_decoder(codecId);
if (_codec == null)
{
Logger.Error?.PrintMsg(LogClass.FFmpeg, $"Codec wasn't found. Make sure you have the {codecId} codec present in your FFmpeg installation.");
return;
}
_context = ffmpeg.avcodec_alloc_context3(_codec);
if (_context == null)
{
Logger.Error?.PrintMsg(LogClass.FFmpeg, "Codec context couldn't be allocated.");
return;
}
if (ffmpeg.avcodec_open2(_context, _codec, null) != 0)
{
Logger.Error?.PrintMsg(LogClass.FFmpeg, "Codec couldn't be opened.");
return;
}
_packet = ffmpeg.av_packet_alloc();
if (_packet == null)
{
Logger.Error?.PrintMsg(LogClass.FFmpeg, "Packet couldn't be allocated.");
return;
}
_decodeFrame = Marshal.GetDelegateForFunctionPointer <AVCodec_decode>(_codec->decode.Pointer);
}
public FFmpegContext(AVCodecID codecId)
{
_codec = ffmpeg.avcodec_find_decoder(codecId);
_context = ffmpeg.avcodec_alloc_context3(_codec);
ffmpeg.avcodec_open2(_context, _codec, null);
_packet = ffmpeg.av_packet_alloc();
_decodeFrame = Marshal.GetDelegateForFunctionPointer <AVCodec_decode>(_codec->decode.Pointer);
}
