[FFmpeg-devel] TR-03 implementation
eloi.bail at savoirfairelinux.com
Thu Nov 10 21:44:44 EET 2016
Media broadcasters tend to move on carriage of live professional media
over IP. A group has been set up to recommend a standard for that, and
they produced the TR-03. It is only a recommendation, but it should be
close enough to what the SMPTE will adopt to start working on it.
Radio Canada/CBC, a major Canadian broadcaster, wants to make FFmpeg
compatible with TR-03 and SMTPE future standard.
Video pixel format is defined in RFC4175 (4.3. Payload Data) for YCbCr
format video. According to the discussion we had on #ffmpeg-devel
yesterday, lots of those pixel formats are not supported in FFmpeg.
These pixel formats are designed to group together all the samples of a
A solution would be to repack the samples into a compatible format, eg.
planar. Repacking samples seems not to be an appropriate solution
because it has an impact on performance, specially dealing with high
resolution uncompressed streams.
We would like to contribute to FFmpeg by adding the support of those pixel
formats and thus make FFmpeg usable for the next generation of
Could you tell us if our contribution would make sense and eventually
advise us on the best way to address that ?
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