> On Mar 10, 2022, at 4:41 AM, Tobias Rapp <t.r...@noa-archive.com> wrote:
>
> On 09/03/2022 19:18, Michael Niedermayer wrote:
>> Signed-off-by: Michael Niedermayer <mich...@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.
I tested this and this works well for me. Here's a few samples that demonstrate
the filter:
./ffmpeg -i
https://samples.ffmpeg.org/archive/audio/pcm_s16le/dv+dvvideo+pcm_s16le++dropout.dv
-bsf dv_error_marker=sta=b -f rawvideo -c:v copy - | ffplay -
./ffmpeg -i
https://archive.org/download/DvAnalyzerSampleDvVideoErrorConcealment/DV_Analyzer_Sample_Video_Error_Concealment_original.dv
-bsf dv_error_marker=sta=b -f rawvideo -c:v copy - | ffplay -
Dave Rice
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
