/// <summary>
/// Find streams from here.
/// </summary>
/// <param name="AOptions">The options <see cref="Dictionary"/>.</param>
/// <exception cref="ObjectDisposedException">This instance is disposed.</exception>
/// <exception cref="InvalidOperationException">Stream is closed.</exception>
/// <exception cref="FFmpegError">Error finding stream info.</exception>
public void FindStreamInfo([CanBeNull] Dictionary AOptions = null)
{
ThrowIfDisposed();
if (Mode != StreamOpenMode.Input)
{
throw new InvalidOperationException("Stream is closed.");
}
Ref <Unsafe.AVDictionary> opt = null;
if (AOptions != null)
{
opt = AOptions.Ref;
}
try
{
AVFormatContext.FindStreamInfo(Ref, ref opt);
}
finally
{
if (AOptions != null)
{
// Options were provided, update them.
AOptions.Ref = opt;
}
else
{
// Options are unwanted, free them.
AVDictionary.Free(ref opt);
}
}
}
/// <summary>
/// Open the output context.
/// </summary>
/// <param name="AUrl">The output URL.</param>
/// <param name="AMuxer">The <see cref="Muxer"/>.</param>
/// <param name="AOptions">The options <see cref="Dictionary"/>.</param>
/// <exception cref="ObjectDisposedException">This instance is disposed.</exception>
/// <exception cref="InvalidOperationException">Stream is already open.</exception>
/// <exception cref="ArgumentNullException">
/// <paramref name="AUrl"/> is <see langword="null"/>.
/// </exception>
/// <exception cref="ArgumentNullException">
/// <paramref name="AMuxer"/> is <see langword="null"/>.
/// </exception>
/// <exception cref="FFmpegError">Error opening context.</exception>
public unsafe void Open(
string AUrl,
Muxer AMuxer,
[CanBeNull] Dictionary AOptions = null
)
{
ThrowIfDisposed();
if (Mode != StreamOpenMode.Closed)
{
throw new InvalidOperationException("Stream is already open.");
}
if (AUrl == null)
{
throw new ArgumentNullException(nameof(AUrl));
}
if (AMuxer == null)
{
throw new ArgumentNullException(nameof(AMuxer));
}
Ref <Unsafe.AVIOContext> pb = Ref.Ptr->pb;
Ref <Unsafe.AVDictionary> opt = null;
if (AOptions != null)
{
opt = AOptions.Ref;
}
try
{
AVIO.Open(ref pb, AUrl, AVIOOpenFlags.AVIO_FLAG_WRITE, null, ref opt);
Ref.Ptr->pb = pb;
}
finally
{
if (AOptions != null)
{
// Options were provided, update them.
AOptions.Ref = opt;
}
else
{
// Options are unwanted, free them.
AVDictionary.Free(ref opt);
}
}
Ref.Ptr->oformat = AMuxer.Ref;
Mode = StreamOpenMode.Output;
State = OutputState.Opened;
}
/// <summary>
/// Open the input context.
/// </summary>
/// <param name="AUrl">The input URL.</param>
/// <param name="ADemuxer">The <see cref="Demuxer"/>.</param>
/// <param name="AOptions">The options <see cref="Dictionary"/>.</param>
/// <exception cref="ObjectDisposedException">This instance is disposed.</exception>
/// <exception cref="InvalidOperationException">Stream is already open.</exception>
/// <exception cref="ArgumentNullException">
/// <paramref name="AUrl"/> is <see langword="null"/>.
/// </exception>
/// <exception cref="FFmpegError">Error opening context.</exception>
public void Open(
string AUrl,
[CanBeNull] Demuxer ADemuxer = null,
[CanBeNull] Dictionary AOptions = null
)
{
ThrowIfDisposed();
if (Mode != StreamOpenMode.Closed)
{
throw new InvalidOperationException("Stream is already open.");
}
if (AUrl == null)
{
throw new ArgumentNullException(nameof(AUrl));
}
Ref <Unsafe.AVDictionary> opt = null;
// If options were provided, input them.
if (AOptions != null)
{
opt = AOptions.Ref;
}
try
{
AVFormatContext.OpenInput(
ref Ref,
AUrl,
ADemuxer != null ? ADemuxer.Ref : null,
ref opt
);
Mode = StreamOpenMode.Input;
}
finally
{
if (AOptions != null)
{
// Options were provided, update them.
AOptions.Ref = opt;
}
else
{
// Options are unwanted, free them.
AVDictionary.Free(ref opt);
}
}
}
/// <summary>
/// Begin writing stream data.
/// </summary>
/// <param name="AOptions"></param>
/// <exception cref="ObjectDisposedException">This instance is disposed.</exception>
/// <exception cref="InvalidOperationException">
/// Stream is not in the Opened state.
/// </exception>
/// <exception cref="FFmpegError">Error writing header.</exception>
public void BeginData([CanBeNull] Dictionary AOptions = null)
{
ThrowIfDisposed();
if (State != OutputState.Opened)
{
throw new InvalidOperationException("Stream is not in the Opened state.");
}
// TODO : Implement stream check.
Ref <Unsafe.AVDictionary> opt = null;
// If options were provided, input them.
if (AOptions != null)
{
opt = AOptions.Ref;
}
try
{
AVFormatContext.WriteHeader(Ref, ref opt);
State = OutputState.Ready;
}
finally
{
if (AOptions != null)
{
// Options were provided, update them.
AOptions.Ref = opt;
}
else
{
// Options are unwanted, free them.
AVDictionary.Free(ref opt);
}
}
}