mirror of https://git.ffmpeg.org/ffmpeg.git
Fix reading beyond buffer end on RA144Context.lpc_tables.
Patch by Francesco Lavra (francescolavra -at- interfree -dot- it) Originally committed as revision 21796 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -219,7 +219,7 @@ static void int_to_int16(int16_t *out, const int *inp)
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{
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{
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int i;
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int i;
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for (i=0; i < 30; i++)
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for (i=0; i < 10; i++)
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*out++ = *inp++;
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*out++ = *inp++;
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}
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}
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@ -276,7 +276,7 @@ static int interp(RA144Context *ractx, int16_t *out, int a,
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// Interpolate block coefficients from the this frame's forth block and
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// Interpolate block coefficients from the this frame's forth block and
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// last frame's forth block.
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// last frame's forth block.
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for (i=0; i<30; i++)
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for (i=0; i<10; i++)
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out[i] = (a * ractx->lpc_coef[0][i] + b * ractx->lpc_coef[1][i])>> 2;
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out[i] = (a * ractx->lpc_coef[0][i] + b * ractx->lpc_coef[1][i])>> 2;
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if (eval_refl(work, out, ractx->avctx)) {
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if (eval_refl(work, out, ractx->avctx)) {
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@ -297,7 +297,7 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *vdata,
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int buf_size = avpkt->size;
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int buf_size = avpkt->size;
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static const uint8_t sizes[10] = {6, 5, 5, 4, 4, 3, 3, 3, 3, 2};
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static const uint8_t sizes[10] = {6, 5, 5, 4, 4, 3, 3, 3, 3, 2};
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unsigned int refl_rms[4]; // RMS of the reflection coefficients
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unsigned int refl_rms[4]; // RMS of the reflection coefficients
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uint16_t block_coefs[4][30]; // LPC coefficients of each sub-block
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uint16_t block_coefs[4][10]; // LPC coefficients of each sub-block
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unsigned int lpc_refl[10]; // LPC reflection coefficients of the frame
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unsigned int lpc_refl[10]; // LPC reflection coefficients of the frame
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int i, j;
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int i, j;
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int16_t *data = vdata;
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int16_t *data = vdata;
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