[FFmpeg-cvslog] mpeg4audio: correctly propagate meaningful error values

[James Almer]

ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Wed Nov 30 11:12:40 2016 -0300| [33a2b73b98374de4781ae0497cf74b2ce07a9615] | committer: Vittorio Giovara

mpeg4audio: correctly propagate meaningful error values

Signed-off-by: James Almer <jamrial at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=33a2b73b98374de4781ae0497cf74b2ce07a9615
---

 libavcodec/mpeg4audio.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/libavcodec/mpeg4audio.c b/libavcodec/mpeg4audio.c
index 2363cb6..af8e655 100644
--- a/libavcodec/mpeg4audio.c
+++ b/libavcodec/mpeg4audio.c
@@ -33,10 +33,10 @@
 static int parse_config_ALS(GetBitContext *gb, MPEG4AudioConfig *c)
 {
     if (get_bits_left(gb) < 112)
-        return -1;
+        return AVERROR_INVALIDDATA;
 
     if (get_bits_long(gb, 32) != MKBETAG('A','L','S','\0'))
-        return -1;
+        return AVERROR_INVALIDDATA;
 
     // override AudioSpecificConfig channel configuration and sample rate
     // which are buggy in old ALS conformance files
@@ -116,8 +116,9 @@ int avpriv_mpeg4audio_get_config(MPEG4AudioConfig *c, const uint8_t *buf,
 
         specific_config_bitindex = get_bits_count(&gb);
 
-        if (parse_config_ALS(&gb, c))
-            return -1;
+        ret = parse_config_ALS(&gb, c);
+        if (ret < 0)
+            return ret;
     }
 
     if (c->ext_object_type != AOT_SBR && sync_extension) {