Improve RTSP/RTP layer
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Roadmap/checklist for Josh Allmann's Summer of Code Project:
- Primary goal: improve the receiver compatibility
- Add support for more widespread formats ([list will follow check gst live555 and feng])
- X-Qt/quicktime depacketizer (see X-QT patch)
- Not implemented during GSoC, the old patch polished up and committed by Martin
- SVQ3 [1] and QDM2 [2] depacketizers
- Committed
- VP8 (see https://groups.google.com/a/webmproject.org/group/webm-discuss/browse_thread/thread/550f946b0e22ead2# )
- Committed
- X-Qt/quicktime depacketizer (see X-QT patch)
- support Quicktime http tunnel mode
- Initial implementation done and committed, not supported in the RTSP muxer yet, missing handling of the x-server-ip-address header
- untangle the AAC and mpeg4 format specific code from rtsp.c, make them proper dynamic payload handlers
- Committed
- factorize out common code for parsing SDP (fmtp) lines, that is duplicated in parse_h264_sdp_line, amr_parse_sdp_line and xiph_parse_sdp_line
- Committed
- add RTP packetizers for codecs that we already have depacketizers for (Theora, Vorbis, SVQ3, QDM2, any other? - VP8, in parallel with the depacketizer for that)
- Xiph and VP8 packetizers committed
- Real RTSP-HTTP, with port knocking
- support RTCP/Bye as end-of-file (see small task)
- Committed
- Add support for more widespread formats ([list will follow check gst live555 and feng])
- Secondary goal: improve application integration
- Provide an API to expose the rtcp layer (and the equivalent in RDT dialect)
- Try to support subtitle streams (either as rtcp-xr or application/text stream)
- Make VideoLanClient, MPlayer or Xine use FFmpeg RTSP
- Patch submitted to VLC, awaiting review
- Implement protocol variations (e.g. DCCP or improve SCTP)
- Untangle MPEG2-TS/RTP from rtpdec into a dynamic payload handler. Write a packetizer first, unless we find such a server to test against.
- Reduce ffrtsp startup time
- Small Xiph RTP optimization: avoid the extra memcpy to packet; instead, hook av_init_packet up to url_close_dyn_buf
- Committed
Mentor: Luca Barbato, Martin Storsjö, Ronald S. Bultje