[FFmpeg-devel] avcodec/hapqa_extract_bsf : add bsf filter for haqqa (to hapq or hapalpha only) conversion (WIP)

[Martin Vignali]

Hello,

In attach patch to add a new bitstream filter

The goal is to convert HAPQA file to HAPQ (removing alpha)
or HAPAlphaOnly (remove rgb)

HAPQA data, is separate in two part, one for RGB data and one for alpha data
so we can make the conversion without losses, by copying the right part.

currently no doc/fate test is written.

Example of use
Convert HAPQA to HAPQ

./ffmpeg -i hapqa_inputfile.mov -c copy -bsf:v hapqa_extract=texture=0
-tag:v HapY -metadata:s:v:0 encoder="HAPQ" hapq_file.mov



Convert HAPQA to HAPAlphaOnly

./ffmpeg -i hapqa_inputfile.mov -c copy -bsf:v hapqa_extract=texture=1
-tag:v HapA -metadata:s:v:0 encoder="HAPAlpha Only" hapalphaonly_file.mov



Comments welcome

Martin
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0002-avcodec-hap-move-parse_section_header-to-hap.c.patch
Type: application/octet-stream
Size: 4879 bytes
Desc: not available
URL: <http://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20171113/4be16668/attachment.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0003-avcodec-hapqa_extract_bsf-add-new-bsf-filter.patch
Type: application/octet-stream
Size: 4512 bytes
Desc: not available
URL: <http://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20171113/4be16668/attachment-0001.obj>