From 507a419bb152034cf26c5d787bf497cc96e463fc Mon Sep 17 00:00:00 2001
From: Martin Pulec <martin.pulec@cesnet.cz>
Date: Wed, 30 Oct 2019 21:12:54 +0100
Subject: [PATCH] Libavcodec common: return print_decoder_error

Needed by audio libavcodec, if linking with the object, there would be
needed to link also with VDPAU which doesn't look fortunate.
---
 src/libavcodec_common.c | 18 ------------------
 src/libavcodec_common.h | 20 +++++++++++++++++++-
 2 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/src/libavcodec_common.c b/src/libavcodec_common.c
index f0af053ff..0b56dd360 100644
--- a/src/libavcodec_common.c
+++ b/src/libavcodec_common.c
@@ -158,24 +158,6 @@ const struct uv_to_av_pixfmt *get_av_to_ug_pixfmts() {
 //
 // utility functions
 //
-void print_decoder_error(const char *mod_name, int rc) {
-        char buf[1024];
-	switch (rc) {
-		case 0:
-			break;
-		case EAGAIN:
-			log_msg(LOG_LEVEL_VERBOSE, "%s No frame returned - needs more input data.\n", mod_name);
-			break;
-		case EINVAL:
-			log_msg(LOG_LEVEL_ERROR, "%s Decoder in invalid state!\n", mod_name);
-			break;
-		default:
-                        av_strerror(rc, buf, 1024);
-                        log_msg(LOG_LEVEL_WARNING, "%s Error while decoding frame (rc == %d): %s.\n", mod_name, rc, buf);
-			break;
-	}
-}
-
 void print_libav_error(int verbosity, const char *msg, int rc) {
         char errbuf[1024];
         av_strerror(rc, errbuf, sizeof(errbuf));
diff --git a/src/libavcodec_common.h b/src/libavcodec_common.h
index c773c4f67..ba5624165 100644
--- a/src/libavcodec_common.h
+++ b/src/libavcodec_common.h
@@ -117,7 +117,25 @@ extern "C" {
 extern "C" {
 #endif
 
-void print_decoder_error(const char *mod_name, int rc);
+static void print_decoder_error(const char *mod_name, int rc) ATTRIBUTE(unused);
+static void print_decoder_error(const char *mod_name, int rc) {
+        char buf[1024];
+	switch (rc) {
+		case 0:
+			break;
+		case EAGAIN:
+			log_msg(LOG_LEVEL_VERBOSE, "%s No frame returned - needs more input data.\n", mod_name);
+			break;
+		case EINVAL:
+			log_msg(LOG_LEVEL_ERROR, "%s Decoder in invalid state!\n", mod_name);
+			break;
+		default:
+                        av_strerror(rc, buf, 1024);
+                        log_msg(LOG_LEVEL_WARNING, "%s Error while decoding frame (rc == %d): %s.\n", mod_name, rc, buf);
+			break;
+	}
+}
+
 void print_libav_error(int verbosity, const char *msg, int rc);
 bool libav_codec_has_extradata(codec_t codec);