Le primidi 21 thermidor, an CCXXIV, Burt P. a écrit : > 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.
I understand the concern, but intruding in other filters is really outside from lavfi's design. Just to illustrate this point, the tests as they are could call av_get_sample_fmt_name() on something that is not a sample format. You can advise users to disable automatic conversions when using this filter (there is an API for that, but I think there is no user interface yet), but beyond that the policy should be to always leave enough rope to shoot oneself in the foot. Regards, -- Nicolas George
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