[FFmpeg-devel] [PATCH 00/15] Matroska muxer patches

[Andreas Rheinhardt]

Andreas Rheinhardt:
> Hello,
> 
> this patchset is mostly concerned with reducing the unnecessary overhead
> of the Matroska muxer; this overhead mostly comes from not using the
> minimal amount of bytes when writing the length field of master
> elements. The length fields of most level 1 elements are currently
> written on eight bytes; after this patchset, they are always written
> with the minimal amount of bytes.
> 
> Currently, writing level 1 elements always uses dynamic buffers
> (regardless of whether one is in seekable or non-seekable mode), but
> strangely, there are nevertheless two different codepaths for writing
> for the seekable and the non-seekable modes. These have been unified; as
> a consequence, CRC-32 elements are now also written in
> non-seekable/live-mode.
> 
> Given that this patchset changes the output, I had to update some fate
> tests. This is the first time I did this, so I hope I did everything
> right. But doublechecking wouldn't hurt.
> 
> - Andreas
> 
> Andreas Rheinhardt (15):
>   avformat/matroskaenc: Fix relative timestamp check
>   avformat/matroskaenc: Fix BlockGroup size calculation
>   avformat/matroskaenc: Slightly improve size bounds for cues
>   avformat/matroskaenc: Don't waste bytes in EBML Header
>   avformat/matroskaenc: Remove traces of secondary seek head
>   avformat/matroskaenc: Simplify check for writing CRCs
>   avformat/matroskaenc: Improve log message
>   avformat/matroskaenc: Remove redundant check
>   avformat/matroskaenc: Change variable types
>   avformat/matroskaenc: Avoid seeking when writing level 1 elements
>   avformat/matroskaenc: Write CRC-32 in non-seekable mode
>   avformat/matroskaenc: Cosmetics and typo
>   avformat/matroskaenc: Don't waste bytes writing level 1 elements
>   avformat/matroskaenc: Improve log messages for blocks
>   avformat/matroskaenc: Reduce usage of ebml_master
> 
>  libavformat/matroskaenc.c            | 319 +++++++++++++--------------
>  tests/fate/matroska.mak              |   2 +-
>  tests/fate/wavpack.mak               |   4 +-
>  tests/ref/fate/aac-autobsf-adtstoasc |   4 +-
>  tests/ref/fate/binsub-mksenc         |   2 +-
>  tests/ref/fate/rgb24-mkv             |   4 +-
>  tests/ref/lavf/mka                   |   4 +-
>  tests/ref/lavf/mkv                   |   4 +-
>  tests/ref/lavf/mkv_attachment        |   4 +-
>  tests/ref/seek/lavf-mkv              |  44 ++--
>  10 files changed, 185 insertions(+), 206 deletions(-)
> 

I'd like to ping this patchset. And given that my original submissions
was munged (the sender was changed to "Andreas Rheinhardt via
ffmpeg-devel") I want to know if it's appropriate to resend this whole
patchset or not.

- Andreas