[FFmpeg-devel] [PATCH] Avoid av_unused (PR #20866)

[FFmpeg-devel] [PATCH] Avoid av_unused (PR #20866)

[mkver via ffmpeg-devel]

PR #20866 opened by mkver
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20866
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20866.patch


>From 41631b48d2392f83130c734b26f7c9fdb8415f5a Mon Sep 17 00:00:00 2001
From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Date: Sat, 8 Nov 2025 17:02:13 +0100
Subject: [PATCH 1/2] swresample/swresample: Avoid av_unused

Possible now that -Wdeclaration-after-statement is no longer used.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 libswresample/swresample.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/libswresample/swresample.c b/libswresample/swresample.c
index 40485a019c..e7ce4a10aa 100644
--- a/libswresample/swresample.c
+++ b/libswresample/swresample.c
@@ -720,14 +720,13 @@ int attribute_align_arg swr_convert(struct SwrContext *s,
 {
     AudioData * in= &s->in;
     AudioData *out= &s->out;
-    av_unused int max_output;
 
     if (!swr_is_initialized(s)) {
         av_log(s, AV_LOG_ERROR, "Context has not been initialized\n");
         return AVERROR(EINVAL);
     }
 #if defined(ASSERT_LEVEL) && ASSERT_LEVEL >1
-    max_output = swr_get_out_samples(s, in_count);
+    int max_output = swr_get_out_samples(s, in_count);
 #endif
 
     while(s->drop_output > 0){
-- 
2.49.1


>From 6e02e7f5fea48b945ef7abece00d610350b6d079 Mon Sep 17 00:00:00 2001
From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Date: Sat, 8 Nov 2025 17:15:57 +0100
Subject: [PATCH 2/2] avformat/mp3enc: Avoid av_unused

Possible now that -Wdeclaration-after-statement is no more.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 libavformat/mp3enc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/libavformat/mp3enc.c b/libavformat/mp3enc.c
index 0ebd480d3f..724c7269dc 100644
--- a/libavformat/mp3enc.c
+++ b/libavformat/mp3enc.c
@@ -322,7 +322,6 @@ static int mp3_write_audio_packet(AVFormatContext *s, AVPacket *pkt)
     if (pkt->data && pkt->size >= 4) {
         MPADecodeHeader mpah;
         int ret;
-        av_unused int base;
         uint32_t h;
 
         h = AV_RB32(pkt->data);
@@ -339,7 +338,7 @@ static int mp3_write_audio_packet(AVFormatContext *s, AVPacket *pkt)
 
 #ifdef FILTER_VBR_HEADERS
         /* filter out XING and INFO headers. */
-        base = 4 + xing_offtbl[mpah.lsf == 1][mpah.nb_channels == 1];
+        int base = 4 + xing_offtbl[mpah.lsf == 1][mpah.nb_channels == 1];
 
         if (base + 4 <= pkt->size) {
             uint32_t v = AV_RB32(pkt->data + base);
-- 
2.49.1

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