vlc.MediaReadCb

class vlc.MediaReadCb

Bases: ctypes.c_void_p

Callback prototype to read data from a custom bitstream input media.

Note

If no data is immediately available, then the callback should sleep.

Warning

The application is responsible for avoiding deadlock situations. In particular, the callback should return an error if playback is stopped; if it does not return, then libvlc_media_player_stop() will never return.

Parameters:

  • opaque – private pointer as set by the MediaOpenCb. callback.

  • buf – start address of the buffer to read data into.

  • len – bytes length of the buffer.

Returns:

strictly positive number of bytes read, 0 on end-of-stream, or -1 on non-recoverable error.

Initialize self. See help(type(self)) for accurate signature.