public override int GetHashCode()
{
unchecked
{
var hashCode = Width;
hashCode = (hashCode * 397) ^ Height;
hashCode = (hashCode * 397) ^ (CodecName != null ? CodecName.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ StartTime.GetHashCode();
return(hashCode);
}
}
public override int GetHashCode()
{
unchecked
{
var hashCode = (CodecName != null ? CodecName.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ StartTime.GetHashCode();
hashCode = (hashCode * 397) ^ Channels;
hashCode = (hashCode * 397) ^ (ChannelLayout != null ? ChannelLayout.GetHashCode() : 0);
return(hashCode);
}
}
public VideoStreamDecoder(string url, AVHWDeviceType HWDeviceType = AVHWDeviceType.AV_HWDEVICE_TYPE_NONE)
{
_pFormatContext = ffmpeg.avformat_alloc_context();
_receivedFrame = ffmpeg.av_frame_alloc();
var pFormatContext = _pFormatContext;
ffmpeg.avformat_open_input(&pFormatContext, url, null, null).ThrowExceptionIfError();
AVCodec * codec = null;
AVBufferRef *codecBuff = null;
if (HWDeviceType is AVHWDeviceType.AV_HWDEVICE_TYPE_QSV)
{
codec = ffmpeg.avcodec_find_decoder_by_name("h264_qsv");
codec->id = AVCodecID.AV_CODEC_ID_H264;
for (int i = 0; i < _pFormatContext->nb_streams; i++)
{
AVStream *st = _pFormatContext->streams[i];
if (st->codecpar->codec_id == AVCodecID.AV_CODEC_ID_H264 && _videoStream == null)
{
_videoStream = st;
Console.WriteLine("Stream founded!");
}
else
{
st->discard = AVDiscard.AVDISCARD_ALL;
}
}
_streamIndex = _videoStream->index;
}
else
{
_streamIndex = ffmpeg.av_find_best_stream(_pFormatContext, AVMediaType.AVMEDIA_TYPE_VIDEO, -1, -1, &codec, 0);
}
_pCodecContext = ffmpeg.avcodec_alloc_context3(codec);
if (HWDeviceType != AVHWDeviceType.AV_HWDEVICE_TYPE_NONE)
{
if (ffmpeg.av_hwdevice_ctx_create(&_pCodecContext->hw_device_ctx,
HWDeviceType, "auto", null, 0) < 0)
{
throw new Exception("HW device init ERROR!");
}
else
{
Console.WriteLine("Device " + HWDeviceType + " init OK");
isHwAccelerate = true;
}
}
if (_pCodecContext == null)
{
throw new Exception("Codec init error");
}
ffmpeg.avformat_find_stream_info(_pFormatContext, null); //This is necessary to determine the parameters of online broadcasting
if (_videoStream->codecpar->extradata != null)
{
int size = (int)(_videoStream->codecpar->extradata_size);
_pCodecContext->extradata = (byte *)ffmpeg.av_mallocz((ulong)size +
ffmpeg.AV_INPUT_BUFFER_PADDING_SIZE);
_pCodecContext->extradata_size = (int)size +
ffmpeg.AV_INPUT_BUFFER_PADDING_SIZE;
FFmpegHelper.memcpy((IntPtr)_pCodecContext->extradata,
(IntPtr)_videoStream->codecpar->extradata,
size);
//Or just
/*for (int i = 0; i < size; i++)
* _pCodecContext->extradata[i] = _videoStream->codecpar->extradata[i];*/
}
if (HWDeviceType == AVHWDeviceType.AV_HWDEVICE_TYPE_QSV)
{
_pCodecContext->get_format = get_fmt;
}
ffmpeg.avcodec_parameters_to_context(_pCodecContext, _videoStream->codecpar);
ffmpeg.avcodec_open2(_pCodecContext, codec, null);
CodecName = ffmpeg.avcodec_get_name(codec->id);
FrameSize = new Size(_videoStream->codecpar->width, _videoStream->codecpar->height);
PixelFormat = _pCodecContext->sw_pix_fmt; //It doesn't work (== AV_HWDEVICE_TYPE_NONE before the first frame)
Console.WriteLine("Codec: " + CodecName.ToString());
Console.WriteLine("Size: " + FrameSize.ToString());
Console.WriteLine("PixelFormat: " + PixelFormat.ToString());
_pPacket = ffmpeg.av_packet_alloc();
_pFrame = ffmpeg.av_frame_alloc();
}
