Example #1
0
        public unsafe AvioContext(
            FfmpegCalls.AvioReadData readDataCallback,
            FfmpegCalls.AvioSeek seekCallback,
            FfmpegCalls.AvioWriteData writeDataCallback)
        {
            _readDataCallback  = readDataCallback;
            _seekCallback      = seekCallback;
            _writeDataCallback = writeDataCallback;

            //make sure that the buffer won't be disposed
            //the buffer may change. we always have to free _context->buffer
            _buffer = new AvioBuffer {
                SuppressAvFree = true
            };
            _context = FfmpegCalls.AvioAllocContext(_buffer, _writeDataCallback != null, IntPtr.Zero,
                                                    _readDataCallback, _writeDataCallback, _seekCallback);
        }
Example #2
0
        internal static unsafe AVIOContext *AvioAllocContext(AvioBuffer buffer, bool writeable, IntPtr userData,
                                                             AvioReadData readData, AvioWriteData writeData, AvioSeek seek)
        {
            byte *bufferPtr = (byte *)buffer.Buffer;

            var avioContext = ffmpeg.avio_alloc_context(
                bufferPtr,
                buffer.BufferSize,
                writeable ? 1 : 0,
                (void *)userData,
                readData, writeData, seek);

            if (avioContext == null)
            {
                throw new FfmpegException("Could not allocate avio-context.", "avio_alloc_context");
            }

            return(avioContext);
        }