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Fix crash if invalid bit-rate was read from file.

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Fixes issue 2426.

Patch by David Czech, davidczech510 gmail

Originally committed as revision 26061 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Czech
2010-12-20 09:58:27 +00:00
committed by Carl Eugen Hoyos
parent fee0deb61f
commit 9100d4d632
1 changed files with 2 additions and 1 deletions
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3
libavformat/utils.c
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@@ -1870,10 +1870,11 @@ static void av_estimate_timings_from_bit_rate(AVFormatContext *ic)
AVStream *st; AVStream *st;
/* if bit_rate is already set, we believe it */ /* if bit_rate is already set, we believe it */
if (ic->bit_rate == 0) { if (ic->bit_rate <= 0) {
bit_rate = 0; bit_rate = 0;
for(i=0;i<ic->nb_streams;i++) { for(i=0;i<ic->nb_streams;i++) {
st = ic->streams[i]; st = ic->streams[i];
if (st->codec->bit_rate > 0)
bit_rate += st->codec->bit_rate; bit_rate += st->codec->bit_rate;
} }
ic->bit_rate = bit_rate; ic->bit_rate = bit_rate;