[FFmpeg-cvslog] riff: ignore ff_read_riff_info() failure.

[Michael Niedermayer]

ffmpeg | branch: release/0.10 | Michael Niedermayer <michaelni at gmx.at> | Fri Nov 23 23:35:16 2012 +0100| [f1156fdc02343db9df0552fc660cd5c5eb8f47a6] | committer: Carl Eugen Hoyos

riff: ignore ff_read_riff_info() failure.

Some files simply contain invalid info tags.
Fixes unrelated bug posted into Ticket1821

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
(cherry picked from commit 09456d0df13404f004ab3a341d9ac21b7e5e6d6d)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f1156fdc02343db9df0552fc660cd5c5eb8f47a6
---

 libavformat/wav.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/libavformat/wav.c b/libavformat/wav.c
index 9d4b070..2080d8e 100644
--- a/libavformat/wav.c
+++ b/libavformat/wav.c
@@ -513,8 +513,7 @@ static int wav_read_header(AVFormatContext *s,
             }
             switch (list_type) {
             case MKTAG('I', 'N', 'F', 'O'):
-                if ((ret = ff_read_riff_info(s, size - 4)) < 0)
-                    return ret;
+                ff_read_riff_info(s, size - 4);
             }
             break;
         }