[FFmpeg-devel] [FFmpeg-cvslog] lavf/isom: add Dolby Vision sample entry codes for HEVC and H.264

[Carl Eugen Hoyos]

2018-12-17 22:27 GMT+01:00, Rodger Combs <git at videolan.org>:
> ffmpeg | branch: master | Rodger Combs <rodger.combs at gmail.com> | Mon Nov  5
> 10:26:24 2018 -0600| [6ebe88f3a4c427511eba7495896f4a57a2b4b529] | committer:
> Jan Ekström
>
> lavf/isom: add Dolby Vision sample entry codes for HEVC and H.264
>
> These are registered identifiers at the MPEG-4 RA, which are
> defined as to be utilized for Dolby Vision AVC/HEVC streams that
> are not correctly presentable by standards-compliant AVC/HEVC players.
>
> According to the Dolby Vision specification for ISOBMFF, these sample
> entry codes are specified to have the standard AVC or HEVC decoder
> configuration box in addition to the Dolby custom DOVIConfigurationBox.
> This is what enables us to decode the streams without custom parsing.
>
> For correct presentation information from the DOVIConfigurationBox
> is required (YCbCr or modified ICtCP, SDR or HDR, base or enhancement
> layer).

This is not only missing a requested mention of the relevant ticket
where a sample
for this patch is linked (apparently the only one existing) but also a
mention of Igor Selivanov who had sent an identical patch to the mailing list.

Carl Eugen