[FFmpeg-devel] [PATCH v3] avformat/hcom: Remove unused variables

[Andreas Rheinhardt]

The variables huffcount, rsrc_size and data_size were all set but not
used. Therefore they have been removed. This entailed a chance to
compactify calls to avio_skip; it has been used while retaining the
information about the offsets of the huffcount etc. fields as comments.

This fixes -Wunused-but-set-variable warnings in GCC.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>
---
 libavformat/hcom.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/libavformat/hcom.c b/libavformat/hcom.c
index 0d1736b620..9efbc3f434 100644
--- a/libavformat/hcom.c
+++ b/libavformat/hcom.c
@@ -38,17 +38,12 @@ static int hcom_probe(const AVProbeData *p)
 static int hcom_read_header(AVFormatContext *s)
 {
     AVStream *st;
-    unsigned data_size, rsrc_size, huffcount;
     unsigned compresstype, divisor;
     unsigned dict_entries;
     int ret;
 
-    avio_skip(s->pb, 83);
-    data_size = avio_rb32(s->pb);
-    rsrc_size = avio_rb32(s->pb);
-    avio_skip(s->pb, 128-91+4);
-    huffcount = avio_rb32(s->pb);
-    avio_skip(s->pb, 4);
+    avio_skip(s->pb, 83 + /* data_size */ 4 + /* rsrc_size */ 4
+                        + 128 - 91 + 4 + /* huffcount */ 4 +  4);
     compresstype = avio_rb32(s->pb);
     if (compresstype > 1)
         return AVERROR_INVALIDDATA;
-- 
2.21.0