[FFmpeg-devel] [PATCH 2/2] avformat/movenc: Support merging h264 fields into field pairs

[Yusuke Nakamura]

2014-03-10 12:48 GMT+09:00 Timothy Gu <timothygu99 at gmail.com>:

> On Mar 9, 2014 6:59 PM, "Michael Niedermayer" <michaelni at gmx.at> wrote:
> >
> > Fixes Ticket3393
> >
> > Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> > ---
> >  libavformat/movenc.c |   12 ++++++++++++
> >  libavformat/movenc.h |    3 +++
> >  2 files changed, 15 insertions(+)
>
> Missing documentation:
>
> Set to 1 merge field pairs into one packet. This option is only valid for
> H.264 codec. If the codec is not H.264, then this option would be silently
> ignored.
>
> Also I wonder if it's a good idea to print a warning if this option is set
> but codec isn't H.264.
>
> Does this work with stream copying? If so, then more documentation is
> needed.
>
> How about HEVC?
>
> [...]
>
> Timothy
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WTF!?

This patch allows to generate files which violate 14496-15.
According to 14496-15, a sample is an access unit.
An access unit can contain only one primary coded picture.

What spec allows this?