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

Martin Vignali martin.vignali at gmail.com
Mon Nov 13 23:43:18 EET 2017


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

-------------- 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>

More information about the ffmpeg-devel mailing list