/// <summary>
/// Builds a image header.
/// </summary>
/// <param name="profile">A <see cref="DeviceProfile"/>.</param>
/// <param name="container">The container.</param>
/// <param name="width">Optional width.</param>
/// <param name="height">Optional height.</param>
/// <param name="isDirectStream">True if the image is via direct stream.</param>
/// <param name="orgPn">Optional organisation.</param>
/// <returns>A string representation.</returns>
public static string BuildImageHeader(
DeviceProfile profile,
string container,
int?width,
int?height,
bool isDirectStream,
string?orgPn = null)
{
if (profile == null)
{
throw new ArgumentNullException(nameof(profile));
}
string orgOp = ";DLNA.ORG_OP=" + DlnaMaps.GetImageOrgOpValue();
// 0 = native, 1 = transcoded
var orgCi = isDirectStream ? ";DLNA.ORG_CI=0" : ";DLNA.ORG_CI=1";
const DlnaFlags FlagValue = DlnaFlags.BackgroundTransferMode |
DlnaFlags.InteractiveTransferMode |
DlnaFlags.DlnaV15;
string dlnaflags = string.Format(
CultureInfo.InvariantCulture,
";DLNA.ORG_FLAGS={0}",
DlnaMaps.FlagsToString(FlagValue));
if (string.IsNullOrEmpty(orgPn))
{
var mediaProfile = profile.GetImageMediaProfile(
container,
width,
height);
orgPn = mediaProfile?.OrgPn;
if (string.IsNullOrEmpty(orgPn))
{
orgPn = GetImageOrgPnValue(container, width, height);
}
}
if (string.IsNullOrEmpty(orgPn))
{
return(orgOp.TrimStart(';') + orgCi + dlnaflags);
}
return("DLNA.ORG_PN=" + orgPn + orgOp + orgCi + dlnaflags);
}
/// <summary>
/// Builds an audio header.
/// </summary>
/// <param name="profile">A <see cref="DeviceProfile"/>.</param>
/// <param name="container">The container.</param>
/// <param name="audioCodec">The audio codec.</param>
/// <param name="audioBitrate">Optional. The audio bitrate.</param>
/// <param name="audioSampleRate">Optional. The sample audio rate.</param>
/// <param name="audioChannels">Optional. The number of audio channels.</param>
/// <param name="audioBitDepth">Optional. The audio bit depth.</param>
/// <param name="isDirectStream">True if being accessed by audio stream.</param>
/// <param name="runtimeTicks">Optional. The runtime ticks.</param>
/// <param name="transcodeSeekInfo">An instance of <see cref="TranscodeSeekInfo"/>.</param>
/// <returns>A string representation.</returns>
public static string BuildAudioHeader(
DeviceProfile profile,
string container,
string?audioCodec,
int?audioBitrate,
int?audioSampleRate,
int?audioChannels,
int?audioBitDepth,
bool isDirectStream,
long?runtimeTicks,
TranscodeSeekInfo transcodeSeekInfo)
{
if (profile == null)
{
throw new ArgumentNullException(nameof(profile));
}
// first bit means Time based seek supported, second byte range seek supported (not sure about the order now), so 01 = only byte seek, 10 = time based, 11 = both, 00 = none
string orgOp = ";DLNA.ORG_OP=" + DlnaMaps.GetOrgOpValue(runtimeTicks > 0, isDirectStream, transcodeSeekInfo);
// 0 = native, 1 = transcoded
string orgCi = isDirectStream ? ";DLNA.ORG_CI=0" : ";DLNA.ORG_CI=1";
const DlnaFlags FlagValue = DlnaFlags.StreamingTransferMode |
DlnaFlags.BackgroundTransferMode |
DlnaFlags.InteractiveTransferMode |
DlnaFlags.DlnaV15;
// if (isDirectStream)
// {
// flagValue = flagValue | DlnaFlags.ByteBasedSeek;
// }
// else if (runtimeTicks.HasValue)
// {
// flagValue = flagValue | DlnaFlags.TimeBasedSeek;
// }
string dlnaflags = string.Format(
CultureInfo.InvariantCulture,
";DLNA.ORG_FLAGS={0}",
DlnaMaps.FlagsToString(FlagValue));
var mediaProfile = profile.GetAudioMediaProfile(
container,
audioCodec,
audioChannels,
audioBitrate,
audioSampleRate,
audioBitDepth);
var orgPn = mediaProfile?.OrgPn;
if (string.IsNullOrEmpty(orgPn))
{
orgPn = GetAudioOrgPnValue(container, audioBitrate, audioSampleRate, audioChannels);
}
if (string.IsNullOrEmpty(orgPn))
{
return(orgOp.TrimStart(';') + orgCi + dlnaflags);
}
return("DLNA.ORG_PN=" + orgPn + orgOp + orgCi + dlnaflags);
}
/// <summary>
/// Builds a video header.
/// </summary>
/// <param name="profile">A <see cref="DeviceProfile"/>.</param>
/// <param name="container">The container.</param>
/// <param name="videoCodec">The video codec.</param>
/// <param name="audioCodec">The audio codec.</param>
/// <param name="width">Optional. The width.</param>
/// <param name="height">Optional. The height.</param>
/// <param name="bitDepth">Optional. The bit depth.</param>
/// <param name="videoBitrate">Optional. The video bitrate.</param>
/// <param name="timestamp">Optional. A <see cref="TransportStreamTimestamp"/>.</param>
/// <param name="isDirectStream">True if the stream is playable by directStream.</param>
/// <param name="runtimeTicks">Optional. Runtime ticks.</param>
/// <param name="videoProfile">The video profile.</param>
/// <param name="videoLevel">Optional. The video level.</param>
/// <param name="videoFramerate">Optional. The video framerate.</param>
/// <param name="packetLength">Optional. The packet length.</param>
/// <param name="transcodeSeekInfo">The <see cref="TranscodeSeekInfo"/>.</param>
/// <param name="isAnamorphic">Optional. True, if anamorphic.</param>
/// <param name="isInterlaced">Optional. True, if interlaced.</param>
/// <param name="refFrames">Optional. The number of reference frames.</param>
/// <param name="numVideoStreams">Optional. The number of video streams.</param>
/// <param name="numAudioStreams">Optional. The number of audio streams.</param>
/// <param name="videoCodecTag">The video codec tag.</param>
/// <param name="isAvc">True is AVC.</param>
/// <returns>A list containing the video information.</returns>
public static List <string> BuildVideoHeader(
DeviceProfile profile,
string container,
string?videoCodec,
string?audioCodec,
int?width,
int?height,
int?bitDepth,
int?videoBitrate,
TransportStreamTimestamp timestamp,
bool isDirectStream,
long?runtimeTicks,
string?videoProfile,
double?videoLevel,
float?videoFramerate,
int?packetLength,
TranscodeSeekInfo transcodeSeekInfo,
bool?isAnamorphic,
bool?isInterlaced,
int?refFrames,
int?numVideoStreams,
int?numAudioStreams,
string?videoCodecTag,
bool?isAvc)
{
if (profile == null)
{
throw new ArgumentNullException(nameof(profile));
}
// first bit means Time based seek supported, second byte range seek supported (not sure about the order now), so 01 = only byte seek, 10 = time based, 11 = both, 00 = none
string orgOp = ";DLNA.ORG_OP=" + DlnaMaps.GetOrgOpValue(runtimeTicks > 0, isDirectStream, transcodeSeekInfo);
// 0 = native, 1 = transcoded
string orgCi = isDirectStream ? ";DLNA.ORG_CI=0" : ";DLNA.ORG_CI=1";
var flagValue = DlnaFlags.StreamingTransferMode |
DlnaFlags.BackgroundTransferMode |
DlnaFlags.InteractiveTransferMode |
DlnaFlags.DlnaV15;
if (isDirectStream)
{
flagValue |= DlnaFlags.ByteBasedSeek;
}
else if (runtimeTicks.HasValue)
{
flagValue |= DlnaFlags.TimeBasedSeek;
}
string dlnaflags = string.Format(CultureInfo.InvariantCulture, ";DLNA.ORG_FLAGS={0}", DlnaMaps.FlagsToString(flagValue));
var mediaProfile = profile.GetVideoMediaProfile(
container,
audioCodec,
videoCodec,
width,
height,
bitDepth,
videoBitrate,
videoProfile,
videoLevel,
videoFramerate,
packetLength,
timestamp,
isAnamorphic,
isInterlaced,
refFrames,
numVideoStreams,
numAudioStreams,
videoCodecTag,
isAvc);
var orgPnValues = new List <string>();
if (mediaProfile != null && !string.IsNullOrEmpty(mediaProfile.OrgPn))
{
orgPnValues.AddRange(mediaProfile.OrgPn.Split(',', StringSplitOptions.RemoveEmptyEntries));
}
else
{
foreach (var s in GetVideoOrgPnValue(container, videoCodec, audioCodec, width, height, timestamp))
{
orgPnValues.Add(s.ToString());
break;
}
}
var contentFeatureList = new List <string>();
foreach (string orgPn in orgPnValues)
{
if (string.IsNullOrEmpty(orgPn))
{
contentFeatureList.Add(orgOp.TrimStart(';') + orgCi + dlnaflags);
}
else
{
contentFeatureList.Add("DLNA.ORG_PN=" + orgPn + orgCi + dlnaflags);
}
}
if (orgPnValues.Count == 0)
{
contentFeatureList.Add(orgOp.TrimStart(';') + orgCi + dlnaflags);
}
return(contentFeatureList);
}
