avformat/tta: fix crash with corrupted files
authorwm4 <nfxjfg@googlemail.com>
Tue, 3 Feb 2015 13:41:10 +0000 (14:41 +0100)
committerMichael Niedermayer <michaelni@gmx.at>
Fri, 13 Feb 2015 19:48:08 +0000 (20:48 +0100)
commite2e835f017d6d21fe0e042b1700ff095fc8c4941
tree5dbe1fd922c3800c518af323f12135c7725c08d5
parenta31fdcef55e4e53da8a15805f79feb9cdf0b2fc7
avformat/tta: fix crash with corrupted files

av_add_index_entry() can fail, for example because the parameters are
invalid, or because memory allocation fails. Check this; it can actually
happen with corrupted files.

The second hunk is just for robustness. Just in case functions like
ff_reduce_index() remove entries. (Not sure if this can actually
happen.)

Fixes ticket #4294.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6a0cd529a35190d9374b0b26504e71857cd67b83)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavformat/tta.c