generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

adpcm: ADPCM Electronic Arts has always two channels

Browse Source 
Fixes half of http://ffmpeg.org/trac/ffmpeg/ticket/794
Adresses CVE-2012-0852

(cherry picked from commit bb5b3940b08d8dad5b7e948e8f3b02cd2eb70716)

Conflicts:

	libavcodec/adpcm.c

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit b581580bd1cc8506befa65b0a5c9ae429240f21f)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
This commit is contained in:
Janne Grunau 2012-01-05 20:50:55 +01:00 committed by Reinhard Tartler
parent 7a5fbe4034
commit 15c819e23f
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
libavcodec/adpcm.c
View File

@ -678,17 +678,23 @@ static int adpcm_encode_frame(AVCodecContext *avctx,
static av_cold int adpcm_decode_init(AVCodecContext * avctx)
{
ADPCMContext *c = avctx->priv_data;
unsigned int min_channels = 1;
unsigned int max_channels = 2;
switch(avctx->codec->id) {
case CODEC_ID_ADPCM_EA:
min_channels = 2;
break;
case CODEC_ID_ADPCM_EA_R1:
case CODEC_ID_ADPCM_EA_R2:
case CODEC_ID_ADPCM_EA_R3:
max_channels = 6;
break;
}
if(avctx->channels > max_channels){
return -1;
if (avctx->channels < min_channels || avctx->channels > max_channels) {
av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n");
return AVERROR(EINVAL);
}
switch(avctx->codec->id) {