[FFmpeg-devel] [PATCH 2/4] ffmpeg: move AVFrame time base adjustment into a function

[Michael Niedermayer]

On Sun, Sep 13, 2020 at 01:26:20PM +0300, Jan Ekström wrote:
> This will have to be called later for video down the line.
> ---
>  fftools/ffmpeg.c | 77 ++++++++++++++++++++++++++++++++----------------
>  1 file changed, 52 insertions(+), 25 deletions(-)

This affects the output, example:
./ffmpeg -i mm-small.mpg -vf idet  -v 50 -bitexact -f null - 2>&1 | grep idet

Reading option '-vf' ... matched as option 'vf' (set video filters) with argument 'idet'.
Applying option vf (set video filters) with argument idet.
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame: progressive, Multi frame: progressive
[Parsed_idet_0 @ 0x557fe4426b40] Repeated Field:     neither, Single frame:undetermined, Multi frame: progressive

VS:

Reading option '-vf' ... matched as option 'vf' (set video filters) with argument 'idet'.
Applying option vf (set video filters) with argument idet.
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:undetermined
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame: progressive, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame: progressive, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:         tff, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:         tff, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:         tff, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:         tff, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:         tff, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:         bff, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame: progressive
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:         bff, Multi frame:         bff
[Parsed_idet_0 @ 0x5567cbd30b40] Repeated Field:     neither, Single frame:undetermined, Multi frame:         bff

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

When the tyrant has disposed of foreign enemies by conquest or treaty, and
there is nothing more to fear from them, then he is always stirring up
some war or other, in order that the people may require a leader. -- Plato
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