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ra144: check buffer size before requesting a buffer

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Return an error on incomplete frames.
This commit is contained in:
Janne Grunau 2013-03-10 22:09:24 +01:00
parent 08149b2b39
commit 684e3d2e1c
1 changed files with 7 additions and 6 deletions
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13
libavcodec/ra144dec.c
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@ -76,6 +76,13 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *data,
RA144Context *ractx = avctx->priv_data; RA144Context *ractx = avctx->priv_data;
GetBitContext gb; GetBitContext gb;
if (buf_size < FRAMESIZE) {
av_log(avctx, AV_LOG_ERROR,
"Frame too small (%d bytes). Truncated file?\n", buf_size);
*got_frame_ptr = 0;
return AVERROR_INVALIDDATA;
}
/* get output buffer */ /* get output buffer */
frame->nb_samples = NBLOCKS * BLOCKSIZE; frame->nb_samples = NBLOCKS * BLOCKSIZE;
if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) { if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
@ -84,12 +91,6 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *data,
} }
samples = (int16_t *)frame->data[0]; samples = (int16_t *)frame->data[0];
if(buf_size < FRAMESIZE) {
av_log(avctx, AV_LOG_ERROR,
"Frame too small (%d bytes). Truncated file?\n", buf_size);
*got_frame_ptr = 0;
return buf_size;
}
init_get_bits(&gb, buf, FRAMESIZE * 8); init_get_bits(&gb, buf, FRAMESIZE * 8);
for (i = 0; i < LPC_ORDER; i++) for (i = 0; i < LPC_ORDER; i++)