--- libav.h.orig	2023-05-31 12:25:59
+++ libav.h	2025-04-18 19:41:23
@@ -174,7 +174,11 @@
 #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
+#if LIBAVUTIL_VERSION_MAJOR >= 58
+#define lav_channels(s) s->codecpar->ch_layout.nb_channels
+#else
 #define lav_channels(s) s->codecpar->channels
+#endif
 #define lav_width(s) s->codecpar->width
 #define lav_height(s) s->codecpar->height
 #define lav_profile(s) s->codecpar->profile