Re #1182:
 - Added video stream interface in vid_stream.h, the video stream will be able to handle different video formats in encoding and decoding direction.
 - Renamed video device stream class identifiers from 'pjmedia_vid_stream*' to 'pjmedia_vid_dev_stream*' as 'pjmedia_vid_stream' is used by video stream interface.
 - Added ffmpeg video capability to be able to parse SDP format param for H263 and also decide video format for encoding direction based on remote preference and local format-capability setting.
 - Added some new APIs in jitter buffer for handling video stream: pjmedia_jbuf_put_frame3(), pjmedia_jbuf_get_frame3(), pjmedia_jbuf_peek_frame(), and pjmedia_jbuf_remove_frame().
 - Moved pjmedia_stream_info_from_sdp() from session to stream




git-svn-id: https://svn.pjsip.org/repos/pjproject/branches/projects/2.0-dev@3420 74dad513-b988-da41-8d7b-12977e46ad98
21 files changed