From patch by Sergiy (mail = piratfm, gmail)
Originally committed as revision 20703 to svn://svn.ffmpeg.org/ffmpeg/trunk
enum RTMPChannel {
RTMP_NETWORK_CHANNEL = 2, ///< channel for network-related messages (bandwidth report, ping, etc)
RTMP_SYSTEM_CHANNEL, ///< channel for sending server control messages
+ RTMP_SOURCE_CHANNEL, ///< channel for sending a/v to server
RTMP_VIDEO_CHANNEL = 8, ///< channel for video data
RTMP_AUDIO_CHANNEL, ///< channel for audio data
};