lavfi/loudnorm: add an internal libebur128 library

Also contains the following changes to the library:
- add ff_ prefix to functions
- remove cplusplus defines.
- add FF_ prefix to contants and some structs
- remove true peak calculation feature, since it uses its own resampler, and
  af_loudnorm does not need it.
- remove version info and some fprintf(stderr) functions
- convert to use av_malloc
- always use histogram mode for LRA calculation, otherwise LRA data is slowly
  consuming memory making af_loudnorm unfit for 24/7 operation. It also uses a
  BSD style linked list implementation which is probably not available on all
  platforms. So let's just remove the classic mode which not uses histogram.
- add ff_thread_once for calculating static histogram tables
- convert some functions to void which cannot fail
- remove intrinsics and some unused headers
- add support for planar audio
- remove channel / sample rate changer function, in ffmpeg usually we simply
  alloc a new context
- convert some static variables to defines
- declare static histogram variables as aligned
- convert some initalizations to mallocz
- add window size parameter to init function and remove window size setter
  function
- convert return codes to AVERROR
- fix indentation

Signed-off-by: Marton Balint <cus@passwd.hu>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 7ed46966a2..cdddb1b076 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -93,7 +93,7 @@ OBJS-$(CONFIG_HDCD_FILTER)                   += af_hdcd.o
 OBJS-$(CONFIG_HIGHPASS_FILTER)               += af_biquads.o
 OBJS-$(CONFIG_JOIN_FILTER)                   += af_join.o
 OBJS-$(CONFIG_LADSPA_FILTER)                 += af_ladspa.o
-OBJS-$(CONFIG_LOUDNORM_FILTER)               += af_loudnorm.o
+OBJS-$(CONFIG_LOUDNORM_FILTER)               += af_loudnorm.o ebur128.o
 OBJS-$(CONFIG_LOWPASS_FILTER)                += af_biquads.o
 OBJS-$(CONFIG_PAN_FILTER)                    += af_pan.o
 OBJS-$(CONFIG_REPLAYGAIN_FILTER)             += af_replaygain.o