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mpegenc: simplify muxrate calculation

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The fate-h264-bsf-mp4toannexb failures were caused by an integer
overflow of the unneeded multiplication.

Inspired by patch by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Janne Grunau 2012-01-01 23:32:15 +01:00
parent f15f02c204
commit af9240cd3c
1 changed files with 1 additions and 1 deletions
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libavformat/mpegenc.c
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@ -429,7 +429,7 @@ static int mpeg_mux_init(AVFormatContext *ctx)
if (!s->mux_rate) { if (!s->mux_rate) {
/* we increase slightly the bitrate to take into account the /* we increase slightly the bitrate to take into account the
headers. XXX: compute it exactly */ headers. XXX: compute it exactly */
bitrate += bitrate*5/100; bitrate += bitrate / 20;
bitrate += 10000; bitrate += 10000;
s->mux_rate = (bitrate + (8 * 50) - 1) / (8 * 50); s->mux_rate = (bitrate + (8 * 50) - 1) / (8 * 50);
} }