[FFmpeg-devel] [PATCHv2] af_hdcd: Don't warn if converting from AV_SAMPLE_FMT_S16P

Burt P. pburt0 at gmail.com
Sun Aug 7 20:50:13 EEST 2016

On Sun, Aug 7, 2016 at 12:20 PM, Nicolas George <george at nsup.org> wrote:
> Sorry if it has been addressed before, but what are these tests? Why is this
> filter invading other filters' privacy?
The HDCD codes are stored in the LSB of consecutive samples, and
anything that would change a sample could cause problems. So it looks
through the AVFilterLink chain and warns if any resampling or
truncation is happening that might destroy the HDCD code before or
undo the filter's work after.


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