The settings file flash_handler_publish.sdp describes SDP for streams published from a Flash an RTMP client. By default, the file contains the following SDP configuration:
Note that changing this file allows to add or remove audio and video streams support only, but not to change codec used by publisher.
For example, if audio description is removed from
v=0 o=- 1988962254 1988962254 IN IP4 0.0.0.0 c=IN IP4 0.0.0.0 t=0 0 a=sdplang:en m=video 0 RTP/AVP 119 127 a=rtpmap:119 H264/90000 a=fmtp:119 profile-level-id=42e01f;packetization-mode=1 a=rtpmap:127 FLV/90000 a=sendonly
then a stream from RTMP encoder will be video only stream on WCS even if it si published as video+audio stream by a client.
The settings file flash_handler_play.sdp describes SDP for streams played on a Flash client. By default, the file contains the following SDP configuration:
a=rtpmap:102 mpeg4-generic/44100/1 a=rtpmap:103 mpeg4-generic/44100/2 a=rtpmap:104 mpeg4-generic/48000/1 a=rtpmap:105 mpeg4-generic/48000/2
Publishing codecs negotiation
If a stream is published with a codec which is not in SDP settings (for example, SDP contains AAC stereo only, but AAC mono is published), the publishing will fail with
No common codecs error.