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我一直在使用LibVLC来将音频文件流式传输到内存,以便它可以通过UDP套接字一块一块发送。LibVLC流式传输到内存p_audio_data
我在这里以下教程:https://wiki.videolan.org/Stream_to_memory_%28smem%29_tutorial/
这里是我的代码:
void handleStream(void* p_audio_data, uint8_t* p_pcm_buffer, unsigned int channels,
unsigned int rate, unsigned int nb_samples, unsigned int bits_per_sample, size_t size, int64_t pts)
{
char *buffer;
int dataSize = size;
int messageSize;
int dataSent = 0;
//cout << p_pcm_buffer << endl;
// While we have data to write
while (dataSize > 0)
{
// Set the size of the next message to send
if (dataSize > MESSAGE_SIZE)
{
messageSize = MESSAGE_SIZE;
}
else
{
messageSize = dataSize;
}
// Write the data to the socket
buffer = new char[dataSize];
memcpy(buffer, p_pcm_buffer + dataSent, messageSize);
sendto(multicastSocket, buffer, MESSAGE_SIZE, 0, (struct sockaddr *) &multicastDestInfo, sizeof(multicastDestInfo));
dataSize -= messageSize;
dataSent += messageSize;
delete[] buffer;
}
// Free the temporary stream buffer
free(p_pcm_buffer);
}
,我碰到的问题是,我需要在handleStream回调的套接字发送给指定数据到。 LibVLC教程意味着我可以指定通过的对象
void* p_audio_data
但我找不到任何资源如何实际设置它。
任何援助将不胜感激!