Re: [FFmpeg-devel] [PATCH v2] avcodec: Add dv marker bsf

[Tobias Rapp <t.rapp@noa-archive.com>]

On 09/03/2022 19:18, Michael Niedermayer wrote:
> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
> ---
>   doc/bitstream_filters.texi       |  30 ++++++++
>   libavcodec/Makefile              |   1 +
>   libavcodec/bitstream_filters.c   |   1 +
>   libavcodec/dv_error_marker_bsf.c | 127 +++++++++++++++++++++++++++++++
>   4 files changed, 159 insertions(+)
>   create mode 100644 libavcodec/dv_error_marker_bsf.c
> 
> diff --git a/doc/bitstream_filters.texi b/doc/bitstream_filters.texi
> index a0092878c8..8c5d84dceb 100644
> --- a/doc/bitstream_filters.texi
> +++ b/doc/bitstream_filters.texi
> @@ -132,6 +132,36 @@ the header stored in extradata to the key packets:
>   ffmpeg -i INPUT -map 0 -flags:v +global_header -c:v libx264 -bsf:v dump_extra out.ts
>   @end example
>   
> +@section dv_error_marker
> +
> +Blocks in DV which are marked as damaged are replaced by blocks of the specified color.
> +
> +@table @option
> +@item color
> +The color to replace damaged blocks by
> +@item sta
> +A 16 bit mask which specifies which of the 16 possible error status values are
> +to be replaced by colored blocks. 0xFFFE is the default which replaces all non 0
> +error status values.
> +@table @samp
> +@item ok
> +No error, no concealment
> +@item err
> +Error, No concealment
> +@item res
> +Reserved
> +@item notok
> +Error or concealment
> +@item notres
> +Not reserved
> +@item Aa, Ba, Ca, Ab, Bb, Cb, A, B, C, a, b, erri, erru
> +The specific error status code
> +@end table
> +see page 44-46 or section 5.5 of
> +@url{http://web.archive.org/web/20060927044735/http://www.smpte.org/smpte_store/standards/pdf/s314m.pdf}
> +
> +@end table
> +
>   @section eac3_core
> [...]
The filter options look nice to me now. Have not actually tested the 
bitstream filter on DV files, though.

Regards,
Tobias

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