[FFmpeg-devel] [PATCH v3 1/2] avfilter: Add fsync filter

Thilo Borgmann thilo.borgmann at mail.de
Mon Dec 18 13:03:13 EET 2023


Am 18.12.23 um 02:04 schrieb Stefano Sabatini:
> On date Saturday 2023-12-16 09:13:21 +0100, ffmpeg-devel Mailing List wrote:
>> ---
>>   Changelog                |   1 +
>>   MAINTAINERS              |   1 +
>>   configure                |   2 +
>>   doc/filters.texi         |  33 +++++
>>   libavfilter/Makefile     |   1 +
>>   libavfilter/allfilters.c |   1 +
>>   libavfilter/version.h    |   2 +-
>>   libavfilter/vf_fsync.c   | 286 +++++++++++++++++++++++++++++++++++++++
>>   8 files changed, 326 insertions(+), 1 deletion(-)
>>   create mode 100644 libavfilter/vf_fsync.c
>>
>> [...]
>> @@ -14681,6 +14681,39 @@ option may cause flicker since the B-Frames have often larger QP. Default is
>>   
>>   @end table
>>   
>> + at anchor{fsync}
>> + at section fsync
>> +
>> +Synchronize video frames with an external mapping from a file.
>> +
>> +For each input PTS given in the map file it either drops or creates as many frames as necessary to recreate the sequence of output frames given in the map file.
>> +
>> +This filter is useful to recreate the output frames of a framerate conversion by the @ref{fps} filter, recorded into a map file using the ffmpeg option @code{-stats_mux_pre}, and do further processing to the corresponding frames e.g. quality comparison.
> 
> wrap around 80 chars, here and below

All wrapped locally, except in the examples where it would mangle the HTML output.

Thanks,
Thilo



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