public static MediaFoundationStreamingSources CreateFromニコ動(string user_id, string password, string video_id, WaveFormat soundDeviceFormat)
{
var sources = new MediaFoundationStreamingSources();
#region " ニコ動から SourceReaderEx を生成する。"
//----------------
if (null == _HttpClient)
{
_HttpClient = new HttpClient();
}
// ログインする。
var content = new FormUrlEncodedContent(new Dictionary <string, string> {
{ "mail", user_id },
{ "password", password },
{ "next_url", string.Empty },
});
using (var responseLogin = _HttpClient.PostAsync("https://secure.nicovideo.jp/secure/login?site=niconico", content).Result)
{
}
// 動画ページにアクセスする。（getflvより前に）
var responseWatch = _HttpClient.GetStringAsync($"http://www.nicovideo.jp/watch/{video_id}").Result;
// 動画情報を取得する。
var responseGetFlv = _HttpClient.GetStringAsync($"http://flapi.nicovideo.jp/api/getflv/{video_id}").Result;
var flvmap = HttpUtility.ParseQueryString(responseGetFlv);
var flvurl = flvmap["url"];
// 動画の長さを取得する。
ulong 長さbyte = 0;
string contentType = "";
using (var requestMovie = new HttpRequestMessage(HttpMethod.Get, flvurl))
using (var responseMovie = _HttpClient.SendAsync(requestMovie, HttpCompletionOption.ResponseHeadersRead).Result)
{
長さbyte = (ulong)(responseMovie.Content.Headers.ContentLength);
contentType = responseMovie.Content.Headers.ContentType.MediaType;
}
// IMFByteStream を生成する。
sources._ByteStream = new ByteStream(IntPtr.Zero);
sources._HttpRandomAccessStream = new HttpRandomAccessStream(_HttpClient, 長さbyte, flvurl);
sources._unkHttpRandomAccessStream = new ComObject(Marshal.GetIUnknownForObject(sources._HttpRandomAccessStream));
MediaFactory.CreateMFByteStreamOnStreamEx(sources._unkHttpRandomAccessStream, sources._ByteStream);
using (var 属性 = sources._ByteStream.QueryInterfaceOrNull <MediaAttributes>())
{
// content-type を設定する。
属性.Set(ByteStreamAttributeKeys.ContentType, contentType);
}
// SourceResolver で IMFByteStream から MediaSouce を取得する。
using (var sourceResolver = new SourceResolver())
using (var unkMediaSource = sourceResolver.CreateObjectFromStream(sources._ByteStream, null, SourceResolverFlags.MediaSource))
{
sources._MediaSource = unkMediaSource.QueryInterface <MediaSource>();
// MediaSource から SourceReaderEx を生成する。
using (var 属性 = new MediaAttributes())
{
// DXVAに対応しているGPUの場合には、それをデコードに利用するよう指定する。
属性.Set(SourceReaderAttributeKeys.D3DManager, グラフィックデバイス.Instance.MFDXGIDeviceManager);
// 追加のビデオプロセッシングを有効にする。
属性.Set(SourceReaderAttributeKeys.EnableAdvancedVideoProcessing, true); // 真偽値が bool だったり
// 追加のビデオプロセッシングを有効にしたら、こちらは無効に。
属性.Set(SinkWriterAttributeKeys.ReadwriteDisableConverters, 0); // int だったり
// 属性を使って、SourceReaderEx を生成。
using (var sourceReader = new SourceReader(sources._MediaSource, 属性))
{
sources._SourceReaderEx = sourceReader.QueryInterfaceOrNull <SourceReaderEx>();
}
}
}
//----------------
#endregion
#region " WaveFormat を生成。"
//----------------
sources._Audioのフォーマット = new WaveFormat(
soundDeviceFormat.SampleRate,
32,
soundDeviceFormat.Channels,
AudioEncoding.IeeeFloat);
//----------------
#endregion
sources._SourceReaderEx生成後の初期化();
return(sources);
}
/// <summary>
/// Create a topology to be played with a MediaSession from a filepath.
/// </summary>
internal static Topology CreateTopology(ByteStream mediaInputStream, out MediaSource mediaSource)
{
// collector to dispose all the created Media Foundation native objects.
var collector = new ObjectCollector();
// Get the MediaSource object.
var sourceResolver = new SourceResolver();
collector.Add(sourceResolver);
ComObject mediaSourceObject;
// Try to load music
try
{
mediaSourceObject = sourceResolver.CreateObjectFromStream(mediaInputStream, null, SourceResolverFlags.MediaSource | SourceResolverFlags.ContentDoesNotHaveToMatchExtensionOrMimeType);
}
catch (SharpDXException)
{
collector.Dispose();
throw new InvalidOperationException("Music stream format not supported");
}
Topology retTopo;
try
{
mediaSource = mediaSourceObject.QueryInterface <MediaSource>();
collector.Add(mediaSourceObject);
// Get the PresentationDescriptor
PresentationDescriptor presDesc;
mediaSource.CreatePresentationDescriptor(out presDesc);
collector.Add(presDesc);
// Create the topology
MediaFactory.CreateTopology(out retTopo);
for (var i = 0; i < presDesc.StreamDescriptorCount; i++)
{
RawBool selected;
StreamDescriptor desc;
presDesc.GetStreamDescriptorByIndex(i, out selected, out desc);
collector.Add(desc);
if (selected)
{
// Test that the audio file data is valid and supported.
var typeHandler = desc.MediaTypeHandler;
collector.Add(typeHandler);
var majorType = typeHandler.MajorType;
if (majorType != MediaTypeGuids.Audio)
{
throw new InvalidOperationException("The music stream is not a valid audio stream.");
}
for (int mType = 0; mType < typeHandler.MediaTypeCount; mType++)
{
MediaType type;
typeHandler.GetMediaTypeByIndex(mType, out type);
collector.Add(type);
var nbChannels = type.Get(MediaTypeAttributeKeys.AudioNumChannels);
if (nbChannels > 2)
{
throw new InvalidOperationException("The provided audio stream has more than 2 channels.");
}
}
// create the topology (source,...)
TopologyNode sourceNode;
MediaFactory.CreateTopologyNode(TopologyType.SourceStreamNode, out sourceNode);
collector.Add(sourceNode);
sourceNode.Set(TopologyNodeAttributeKeys.Source, mediaSource);
sourceNode.Set(TopologyNodeAttributeKeys.PresentationDescriptor, presDesc);
sourceNode.Set(TopologyNodeAttributeKeys.StreamDescriptor, desc);
TopologyNode outputNode;
MediaFactory.CreateTopologyNode(TopologyType.OutputNode, out outputNode);
collector.Add(outputNode);
Activate activate;
MediaFactory.CreateAudioRendererActivate(out activate);
collector.Add(activate);
outputNode.Object = activate;
retTopo.AddNode(sourceNode);
retTopo.AddNode(outputNode);
sourceNode.ConnectOutput(0, outputNode, 0);
}
}
}
finally
{
collector.Dispose();
}
return(retTopo);
}
/// <summary>
///
/// </summary>
private void PlatformInitialize(byte[] bytes, Stream stream, string url)
{
if (Topology != null)
{
return;
}
MediaFactory.CreateTopology(out _topology);
SharpDX.MediaFoundation.MediaSource mediaSource;
{
SourceResolver resolver = new SourceResolver();
ObjectType otype;
ComObject source = null;
if (url != null)
{
source = resolver.CreateObjectFromURL(url, SourceResolverFlags.MediaSource, null, out otype);
}
if (stream != null)
{
var bs = new ByteStream(stream);
source = resolver.CreateObjectFromStream(bs, null, SourceResolverFlags.MediaSource, null, out otype);
}
if (bytes != null)
{
var bs = new ByteStream(bytes);
source = resolver.CreateObjectFromStream(bs, null, SourceResolverFlags.MediaSource | SourceResolverFlags.ContentDoesNotHaveToMatchExtensionOrMimeType, null, out otype);
}
if (source == null)
{
throw new ArgumentException("'stream' and 'url' are null!");
}
mediaSource = source.QueryInterface <SharpDX.MediaFoundation.MediaSource>();
resolver.Dispose();
source.Dispose();
}
PresentationDescriptor presDesc;
mediaSource.CreatePresentationDescriptor(out presDesc);
for (var i = 0; i < presDesc.StreamDescriptorCount; i++)
{
RawBool selected = false;
StreamDescriptor desc;
presDesc.GetStreamDescriptorByIndex(i, out selected, out desc);
if (selected)
{
TopologyNode sourceNode;
MediaFactory.CreateTopologyNode(TopologyType.SourceStreamNode, out sourceNode);
sourceNode.Set(TopologyNodeAttributeKeys.Source, mediaSource);
sourceNode.Set(TopologyNodeAttributeKeys.PresentationDescriptor, presDesc);
sourceNode.Set(TopologyNodeAttributeKeys.StreamDescriptor, desc);
TopologyNode outputNode;
MediaFactory.CreateTopologyNode(TopologyType.OutputNode, out outputNode);
var majorType = desc.MediaTypeHandler.MajorType;
if (majorType == MediaTypeGuids.Video)
{
Activate activate;
sampleGrabber = new VideoSampleGrabber();
_mediaType = new MediaType();
_mediaType.Set(MediaTypeAttributeKeys.MajorType, MediaTypeGuids.Video);
// Specify that we want the data to come in as RGB32.
_mediaType.Set(MediaTypeAttributeKeys.Subtype, new Guid("00000016-0000-0010-8000-00AA00389B71"));
MediaFactory.CreateSampleGrabberSinkActivate(_mediaType, SampleGrabber, out activate);
outputNode.Object = activate;
long frameSize = desc.MediaTypeHandler.CurrentMediaType.Get <long>(MediaTypeAttributeKeys.FrameSize);
Width = (int)(frameSize >> 32);
Height = (int)(frameSize & 0x0000FFFF);
}
if (majorType == MediaTypeGuids.Audio)
{
Activate activate;
MediaFactory.CreateAudioRendererActivate(out activate);
outputNode.Object = activate;
}
_topology.AddNode(sourceNode);
_topology.AddNode(outputNode);
sourceNode.ConnectOutput(0, outputNode, 0);
Duration = new TimeSpan(presDesc.Get <long>(PresentationDescriptionAttributeKeys.Duration));
sourceNode.Dispose();
outputNode.Dispose();
}
desc.Dispose();
}
presDesc.Dispose();
mediaSource.Dispose();
videoFrame = new DynamicTexture(Game.Instance.RenderSystem, Width, Height, typeof(ColorBGRA), false, false);
}