public void InitializeFFmpeg(string _url, VideoInputType _inputType)
{
url = _url;
videoInputType = _inputType;
isInit = true;
}
public VideoStreamDecoder(string url, VideoInputType inputType, AVHWDeviceType HWDeviceType = AVHWDeviceType.AV_HWDEVICE_TYPE_NONE)
{
try
{
ffmpeg.avdevice_register_all();
iFormatContext = ffmpeg.avformat_alloc_context();
receivedFrame = ffmpeg.av_frame_alloc();
var _iFormatContext = iFormatContext;
AVDictionary *avDict;
ffmpeg.av_dict_set(&avDict, "reorder_queue_size", "1", 0);
switch (inputType)
{
case VideoInputType.CAM_DEVICE:
AVInputFormat *iformat = ffmpeg.av_find_input_format("dshow");
ffmpeg.avformat_open_input(&_iFormatContext, url, iformat, null).ThrowExceptionIfError();
break;
case VideoInputType.RTP_RTSP:
ffmpeg.avformat_open_input(&_iFormatContext, url, null, &avDict).ThrowExceptionIfError();
break;
default:
break;
}
ffmpeg.avformat_find_stream_info(iFormatContext, null).ThrowExceptionIfError();
AVCodec *codec;
dec_stream_index = ffmpeg.av_find_best_stream(iFormatContext, AVMediaType.AVMEDIA_TYPE_VIDEO, -1, -1, &codec, 0).ThrowExceptionIfError();
iCodecContext = ffmpeg.avcodec_alloc_context3(codec);
if (HWDeviceType != AVHWDeviceType.AV_HWDEVICE_TYPE_NONE)
{
ffmpeg.av_hwdevice_ctx_create(&iCodecContext->hw_device_ctx, HWDeviceType, null, null, 0).ThrowExceptionIfError();
}
ffmpeg.avcodec_parameters_to_context(iCodecContext, iFormatContext->streams[dec_stream_index]->codecpar).ThrowExceptionIfError();
ffmpeg.avcodec_open2(iCodecContext, codec, null).ThrowExceptionIfError();
CodecName = ffmpeg.avcodec_get_name(codec->id);
FrameSize = new Size(iCodecContext->width, iCodecContext->height);
PixelFormat = iCodecContext->pix_fmt;
rawPacket = ffmpeg.av_packet_alloc();
decodedFrame = ffmpeg.av_frame_alloc();
}
catch (AccessViolationException ex)
{
throw new AccessViolationException("Access Violation Exception", ex);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="AnalogChannel"/> class.
/// </summary>
public AnalogChannel()
{
CountryCollection collection = new CountryCollection();
_country = collection.GetTunerCountryFromID(31);
TunerSource = TunerInputType.Cable;
_videoInputType = VideoInputType.Tuner;
_audioInputType = AudioInputType.Automatic;
_channelNumber = 4;
_isRadio = false;
_vcrSginal = false;
Name = String.Empty;
}
/// <summary>
/// Initializes a new instance of the <see cref="AnalogChannel"/> class.
/// </summary>
public AnalogChannel()
{
CountryCollection collection = new CountryCollection();
_country = collection.GetTunerCountryFromID(31);
TunerSource = TunerInputType.Cable;
_videoInputType = VideoInputType.Tuner;
_audioInputType = AudioInputType.Automatic;
_channelNumber = 4;
_isRadio = false;
_vcrSginal = false;
Name = String.Empty;
}
