[MPlayer-cvslog] r37574 - trunk/libmpcodecs/ad_imaadpcm.c

[cehoyos]

Author: cehoyos
Date: Tue Dec 29 19:38:30 2015
New Revision: 37574

Log:
libmpcodecs/ad_imaadpcm: Fix a division by zero.

Fixes a crash with a file reported by Gustavo Grieco:
SIGFPE.PC.5555557243ad.STACK.18b325c3c0.CODE.1.ADDR.0x5555557243ad.INSTR.divl___0x80\(%rcx\).fuzz

Modified:
   trunk/libmpcodecs/ad_imaadpcm.c

Modified: trunk/libmpcodecs/ad_imaadpcm.c
==============================================================================
--- trunk/libmpcodecs/ad_imaadpcm.c	Tue Dec 29 19:37:46 2015	(r37573)
+++ trunk/libmpcodecs/ad_imaadpcm.c	Tue Dec 29 19:38:30 2015	(r37574)
@@ -100,6 +100,8 @@ static int preinit(sh_audio_t *sh_audio)
   {
     sh_audio->ds->ss_div = (sh_audio->wf->nBlockAlign -
       (MS_IMA_ADPCM_PREAMBLE_SIZE * sh_audio->wf->nChannels)) * 2;
+    if (!sh_audio->ds->ss_div)
+      return 0;
     sh_audio->ds->ss_mul = sh_audio->wf->nBlockAlign;
   }
   else