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avcodec/mpc8: Correct end truncation

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Fixes Ticket5478

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-06-11 14:28:24 +02:00
parent 98a3355c6a
commit b21f674876
1 changed files with 6 additions and 2 deletions
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8
libavcodec/mpc8.c
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@ -415,10 +415,14 @@ static int mpc8_decode_frame(AVCodecContext * avctx, void *data,
c->cur_frame++;
c->last_bits_used = get_bits_count(gb);
if(get_bits_left(gb) < 8) // we have only padding left
c->last_bits_used = buf_size << 3;
if(c->cur_frame >= c->frames)
c->cur_frame = 0;
if(c->cur_frame == 0 && get_bits_left(gb) < 8) {// we have only padding left
c->last_bits_used = buf_size << 3;
} else if (get_bits_left(gb) < 0) {
av_log(avctx, AV_LOG_ERROR, "Overread %d\n", -get_bits_left(gb));
c->last_bits_used = buf_size << 3;
}
*got_frame_ptr = 1;