public static long ThrowIfError(this long errorCode, string?message = null)
{
if (errorCode < 0)
{
throw FFmpegException.FromErrorCode((int)errorCode, message);
}
return(errorCode);
}
public DisposableNativeString(IntPtr pointer)
{
if (pointer == IntPtr.Zero)
{
throw FFmpegException.NoMemory($"pointer = 0 in {nameof(DisposableNativeString)}.");
}
Pointer = pointer;
}
public BufferReference Create(Span <byte> data, Action <IntPtr, IntPtr> free, IntPtr opaque, int flags)
{
if (data.Length == 0)
throw new ArgumentOutOfRangeException(nameof(data));
fixed(byte *ptr = data)
{
AVBufferRef *res = av_buffer_create(ptr, data.Length, new av_buffer_create_free((o, d) => free((IntPtr)o, (IntPtr)d)), (void *)opaque, flags);
if (res == null)
{
throw FFmpegException.NoMemory("falied to allocate AVBufferRef");
}
return(FromNative(res, isOwner: true));
}
}