/// <summary>
/// Write the video and audio headers.
/// </summary>
/// <param name="header">The video and audo header information.</param>
public void WriteHeader(VideoAudioHeader header)
{
VideoHeader?video = header.Video;
AudioHeader?audio = header.Audio;
try
{
// Create a new binary reader from the stream
// set the starting position at the begining
_binaryWriter.BaseStream.Seek(0, SeekOrigin.Begin);
// Write the media format.
if (header.MediaFormat > 0)
{
_binaryWriter.Write(header.MediaFormat);
}
else
{
_binaryWriter.Write(Nequeo.Media.Streaming.MediaFormat);
}
// If there is video data.
if (video != null && video.Value.ContainsVideo)
{
// Write each pice of binary data to the stream.
_binaryWriter.Write(video.Value.ContainsVideo);
_binaryWriter.Write(video.Value.FrameRate);
_binaryWriter.Write(video.Value.FrameSizeWidth);
_binaryWriter.Write(video.Value.FrameSizeHeight);
_binaryWriter.Write(Helper.GetImageTypeInt32(video.Value.ImageType));
_binaryWriter.Write(CompressionAlgorithmHelper.GetAlgorithmInt32(video.Value.CompressionAlgorithm));
_binaryWriter.Write(video.Value.Duration);
// Get the frame rate.
_videoFrameRate = video.Value.FrameRate;
_videoDuration = video.Value.Duration;
}
else
{
// Let the stream know there is no video data.
_binaryWriter.Write(false);
}
// If there is audio data.
if (audio != null && audio.Value.ContainsAudio)
{
// Write each pice of binary data to the stream.
_binaryWriter.Write(audio.Value.ContainsAudio);
_binaryWriter.Write(audio.Value.Channels);
_binaryWriter.Write(audio.Value.SamplingRate);
_binaryWriter.Write(audio.Value.SampleSize);
_binaryWriter.Write(Helper.GetSoundTypeInt32(audio.Value.SoundType));
_binaryWriter.Write(CompressionAlgorithmHelper.GetAlgorithmInt32(audio.Value.CompressionAlgorithm));
_binaryWriter.Write(audio.Value.Duration);
// Get the frame rate.
_audioDuration = audio.Value.Duration;
}
else
{
// Let the stream know there is no audio data.
_binaryWriter.Write(false);
}
}
catch (Exception)
{
throw;
}
}
/// <summary>
/// Encode the media data.
/// </summary>
/// <param name="videoAudio">The video and audio content.</param>
/// <returns>The encoded media data.</returns>
public byte[] Encode(VideoAudioModel videoAudio)
{
byte[] data = null;
VideoModel?video = videoAudio.Video;
AudioModel?audio = videoAudio.Audio;
MemoryStream memoryStream = null;
BinaryWriter binaryWriter = null;
try
{
// Create the encoding stream.
memoryStream = new MemoryStream();
// Create a new binary reader from the stream
// set the starting position at the begining
binaryWriter = new BinaryWriter(memoryStream);
binaryWriter.BaseStream.Seek(0, SeekOrigin.Begin);
// Write the media format.
if (videoAudio.MediaFormat > 0)
{
binaryWriter.Write(videoAudio.MediaFormat);
}
else
{
binaryWriter.Write(Nequeo.Media.Streaming.MediaFormat);
}
// If there is video data.
if (video != null && video.Value.Header.ContainsVideo)
{
// Write each pice of binary data to the stream.
binaryWriter.Write(video.Value.Header.ContainsVideo);
binaryWriter.Write(video.Value.Header.FrameRate);
binaryWriter.Write(video.Value.Header.FrameSizeWidth);
binaryWriter.Write(video.Value.Header.FrameSizeHeight);
binaryWriter.Write(Helper.GetImageTypeInt32(video.Value.Header.ImageType));
binaryWriter.Write(CompressionAlgorithmHelper.GetAlgorithmInt32(video.Value.Header.CompressionAlgorithm));
binaryWriter.Write(video.Value.Header.Duration);
binaryWriter.Write((ushort)0);
binaryWriter.Write(video.Value.Video.Length);
// Get the images in the video.
for (int v = 0; v < video.Value.Video.Length; v++)
{
binaryWriter.Write(video.Value.Video[v].Data.Length);
binaryWriter.Write(video.Value.Video[v].Data);
}
}
else
{
// Let the stream know there is no video data.
binaryWriter.Write(false);
}
// If there is audio data.
if (audio != null && audio.Value.Header.ContainsAudio)
{
// Write the audio data.
binaryWriter.Write(audio.Value.Header.ContainsAudio);
binaryWriter.Write(audio.Value.Header.Channels);
binaryWriter.Write(audio.Value.Header.SamplingRate);
binaryWriter.Write(audio.Value.Header.SampleSize);
binaryWriter.Write(Helper.GetSoundTypeInt32(audio.Value.Header.SoundType));
binaryWriter.Write(CompressionAlgorithmHelper.GetAlgorithmInt32(audio.Value.Header.CompressionAlgorithm));
binaryWriter.Write(audio.Value.Header.Duration);
binaryWriter.Write((ushort)1);
binaryWriter.Write(audio.Value.Audio.Length);
// Get the sounds in the audio.
for (int s = 0; s < audio.Value.Audio.Length; s++)
{
binaryWriter.Write(audio.Value.Audio[s].StartAtFrameIndex);
binaryWriter.Write(audio.Value.Audio[s].Data.Length);
binaryWriter.Write(audio.Value.Audio[s].Data);
}
}
else
{
// Let the stream know there is no audio data.
binaryWriter.Write(false);
}
// Assign the data.
data = memoryStream.ToArray();
}
catch (Exception)
{
throw;
}
finally
{
if (binaryWriter != null)
{
binaryWriter.Close();
}
if (memoryStream != null)
{
memoryStream.Close();
}
}
// Return the data.
return(data);
}