bs1770gain: add patch for ffmpeg-4.0.1.

srcpkgs/bs1770gain/patches/ffmpeg4.patch

@@ -0,0 +1,33 @@
+--- libffsox-2/ffsox_frame.c.orig	2018-05-03 16:26:40.651562783 +0200
++++ libffsox-2/ffsox_frame.c	2018-05-03 16:27:43.450930824 +0200
+@@ -48,7 +48,7 @@
+     goto frame;
+   }
+ 
+-  if (NULL!=codec&&(codec->capabilities&CODEC_CAP_VARIABLE_FRAME_SIZE))
++  if (NULL!=codec&&(codec->capabilities&AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
+     nb_samples=10000;
+   else
+     nb_samples=cc->frame_size;
+--- libffsox-2/ffsox_frame_writer.c.orig	2018-05-03 16:27:03.067335575 +0200
++++ libffsox-2/ffsox_frame_writer.c	2018-05-03 16:28:05.418712077 +0200
+@@ -66,7 +66,7 @@
+     goto open;
+ 
+   if (fw->so.fc->oformat->flags&AVFMT_GLOBALHEADER)
+-    fw->so.cc->flags|=CODEC_FLAG_GLOBAL_HEADER;
++    fw->so.cc->flags|=AV_CODEC_FLAG_GLOBAL_HEADER;
+ 
+   fw->so.st->time_base=fw->so.cc->time_base;
+   //fw->so.st->time_base=fr->si.st->time_base;
+--- libffsox-2/ffsox_packet_writer.c.orig	2018-05-03 16:27:24.836116183 +0200
++++ libffsox-2/ffsox_packet_writer.c	2018-05-03 16:28:19.530571557 +0200
+@@ -65,7 +65,7 @@
+   pw->so.cc->codec_tag=0;
+ 
+   if (pw->so.fc->oformat->flags&AVFMT_GLOBALHEADER)
+-    pw->so.cc->flags|=CODEC_FLAG_GLOBAL_HEADER;
++    pw->so.cc->flags|=AV_CODEC_FLAG_GLOBAL_HEADER;
+ 
+   if (ffsox_sink_append(so,&pw->si,&pw->so)<0) {
+     DMESSAGE("appending output stream");

srcpkgs/bs1770gain/template

@@ -1,7 +1,7 @@
 # Template file for 'bs1770gain'
 pkgname=bs1770gain
 version=0.4.12
-revision=1
+revision=2
 build_style=gnu-configure
 makedepends="ffmpeg-devel sox-devel"
 short_desc="A loudness scanner compliant with ITU-R BS.1770"