Commit bd10f6e1 authored by Laurent Aimar's avatar Laurent Aimar Committed by Diego Biurrun

Prevent a division by 0 in the g726 decoder when the configured samplerate is 0.

patch by Laurent Aimar, fenrir via.ecp fr

Originally committed as revision 15160 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent d1c2156b
......@@ -301,7 +301,14 @@ static int16_t g726_encode(G726Context* c, int16_t sig)
static av_cold int g726_init(AVCodecContext * avctx)
{
G726Context* c = avctx->priv_data;
unsigned int index= (avctx->bit_rate + avctx->sample_rate/2) / avctx->sample_rate - 2;
unsigned int index;
if (avctx->sample_rate <= 0) {
av_log(avctx, AV_LOG_ERROR, "Samplerate is invalid\n");
return -1;
}
index = (avctx->bit_rate + avctx->sample_rate/2) / avctx->sample_rate - 2;
if (avctx->bit_rate % avctx->sample_rate && avctx->codec->encode) {
av_log(avctx, AV_LOG_ERROR, "Bitrate - Samplerate combination is invalid\n");
......
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