gnu: readymedia: Patch for newer ffmpeg.

* gnu/packages/patches/readymedia-ffmpeg7.patch: New patch.
* gnu/local.mk: Register the patch.
* gnu/packages/upnp.scm (readymedia): Enable the patch.

Change-Id: Icac48ec22704513f9fb8fddfe092fdcd7ac0047c
Signed-off-by: Maxim Cournoyer <maxim@guixotic.coop>

gnu/local.mk

@@ -2238,6 +2238,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/raptor2-libxml2.patch			\
   %D%/packages/patches/racket-rktio-bin-sh.patch		\
   %D%/packages/patches/re2c-Use-maximum-alignment.patch         \
+  %D%/packages/patches/readymedia-ffmpeg7.patch         \
   %D%/packages/patches/reduce-unbundle-libffi.patch             \
   %D%/packages/patches/remake-impure-dirs.patch			\
   %D%/packages/patches/restartd-update-robust.patch             \

gnu/packages/patches/readymedia-ffmpeg7.patch

@@ -0,0 +1,15 @@
+https://gitlab.archlinux.org/archlinux/packaging/packages/minidlna/-/raw/affcf0dd1e6f8e33d0ba90b2b0733736fa1aeb71/ffmpeg7.patch
+
+diff --git a/libav.h b/libav.h
+index b69752c..aed9d18 100644
+--- a/libav.h
++++ b/libav.h
+@@ -174,7 +174,7 @@ lav_get_interlaced(AVStream *s)
+ #define lav_codec_tag(s) s->codecpar->codec_tag
+ #define lav_sample_rate(s) s->codecpar->sample_rate
+ #define lav_bit_rate(s) s->codecpar->bit_rate
+-#define lav_channels(s) s->codecpar->channels
++#define lav_channels(s) s->codecpar->ch_layout.nb_channels
+ #define lav_width(s) s->codecpar->width
+ #define lav_height(s) s->codecpar->height
+ #define lav_profile(s) s->codecpar->profile

gnu/packages/upnp.scm

@@ -148,7 +148,8 @@ and others.")
                       "v" (string-replace-substring version "." "_")))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1al04jx72bxwqch1nv9lx536mb6pvj7pgnqzy6lm32q6xa114yr2"))))
+        (base32 "1al04jx72bxwqch1nv9lx536mb6pvj7pgnqzy6lm32q6xa114yr2"))
+       (patches (search-patches "readymedia-ffmpeg7.patch"))))
     (build-system gnu-build-system)
     (arguments
      (list