[FFmpeg-devel] libavformat/mpegtsenc: new interleaved mux mode [v3]

[Andreas Håkon]

Hi,

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Monday, 19 de August de 2019 21:16, Andreas Håkon <andreas.hakon at protonmail.com> wrote:

> Hi,
>
> This is the third version of my patch for an "interleaved MPEG-TS muxer".
> This new version includes all recommendations and rebases the fix of the
> incorrect PCR with multiple programs (fixed in collaboration with Marton Balint).
>
> Supersedes: https://patchwork.ffmpeg.org/patch/13745/
>
> How to check it:
>
> (Note: I use for all the tests the file
> https://samples.ffmpeg.org/HDTV/bshi01.tp
> )
>
> - To check the new interlaced mode you can perform this other test:
>
> $ ffmpeg-patched -y -loglevel verbose -i bshi01.tp \
>   -map "i:0x100" -c:0 copy \
>   -map "i:0x110" -c:a:0 mp2 -ac:0 2 -ar:0 48000 -ab:0 384k \
>   -map "i:0x130" -c:2 copy \
>   -map "i:0x110" -c:3 copy \
>   -map "i:0x100" -c:4 copy \
>   -program title=Prog1:st=0:st=1:st=2 \
>   -program title=Prog2:st=3:st=4 \
>   -f mpegts -muxrate 44M -mpegts_extra_mux 1 bshi01-mode1.ts
>
> $ ffmpeg-patched -y -loglevel verbose -i bshi01.tp \
>   -map "i:0x100" -c:0 copy \
>   -map "i:0x110" -c:a:0 mp2 -ac:0 2 -ar:0 48000 -ab:0 384k \
>   -map "i:0x130" -c:2 copy \
>   -map "i:0x110" -c:3 copy \
>   -map "i:0x100" -c:4 copy \
>   -program title=Prog1:st=0:st=1:st=2 \
>   -program title=Prog2:st=3:st=4 \
>   -f mpegts -muxrate 44M -mpegts_extra_mux 0 bshi01-mode0.ts
>
> ---

To understand what this patch is doing, see these screenshots about the test files
"bshi01-mode0.ts" and "bshi01-mode1.ts":

- Current muxing: https://trac.ffmpeg.org/attachment/ticket/8096/MODE-0.PNG
- New interleaved muxing mode: https://trac.ffmpeg.org/attachment/ticket/8096/MODE-1.PNG

See also this example of a professional muxer: https://trac.ffmpeg.org/attachment/ticket/8096/MPTS.PNG

I hope this patch will be reviewed soon.
Regards.
A.H.

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