[FFmpeg-devel] [PATCH 1/3] lavfi/ebur128: add sample and true peak metering.

Clément Bœsch u at pkh.me
Fri Jan 31 09:16:55 CET 2014

On Sat, Jan 25, 2014 at 11:19:05PM +0100, Jean First wrote:
> From: Clément Bœsch <ubitux at gmail.com>
> Metadata injection and logging. Not yet present visually.
> Signed-off-by: Jean First <jeanfirst at gmail.com>
> ---
>  doc/filters.texi        |  21 ++++++++
>  libavfilter/f_ebur128.c | 140 +++++++++++++++++++++++++++++++++++++++++++-----
>  2 files changed, 149 insertions(+), 12 deletions(-)

So IIRC, the two main standing issues with this patch are the peaks not
expressed in dBFS - which you fixed in a later commit -, and the potential
build problem because of FFLIBS lacking swresample in libavfilter/Makefile
for this particular filter. The trick is that this dependency is optional,
but if this filter and swr are enabled, FFLIBS needs a swresample
reference. It should be relatively trivial to do, so I'll probably patch
and push this week end.


Clément B.
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