avcodec/mpeg4videodec: Check for bitstream overread in decode_vol_header()

[ffmpeg] / libavcodec / ra144enc.c

diff --git a/libavcodec/ra144enc.c b/libavcodec/ra144enc.c
index 3558254e56812ad22716738f7f6843735c864694..0db60326158399f5dd04243e0e85b369b8c45210 100644 (file)
--- a/libavcodec/ra144enc.c
+++ b/libavcodec/ra144enc.c
@@ -61,6 +61,7 @@ static av_cold int ra144_encode_init(AVCodecContext * avctx)
     ractx->lpc_coef[0] = ractx->lpc_tables[0];
     ractx->lpc_coef[1] = ractx->lpc_tables[1];
     ractx->avctx = avctx;
+    ff_dsputil_init(&ractx->dsp, avctx);
     ret = ff_lpc_init(&ractx->lpc_ctx, avctx->frame_size, LPC_ORDER,
                       FF_LPC_TYPE_LEVINSON);
     if (ret < 0)
@@ -334,7 +335,6 @@ static void ra144_encode_subblock(RA144Context *ractx,
     float data[BLOCKSIZE] = { 0 }, work[LPC_ORDER + BLOCKSIZE];
     float coefs[LPC_ORDER];
     float zero[BLOCKSIZE], cba[BLOCKSIZE], cb1[BLOCKSIZE], cb2[BLOCKSIZE];
-    int16_t cba_vect[BLOCKSIZE];
     int cba_idx, cb1_idx, cb2_idx, gain;
     int i, n;
     unsigned m[3];
@@ -373,8 +373,8 @@ static void ra144_encode_subblock(RA144Context *ractx,
          */
         memcpy(cba, work + LPC_ORDER, sizeof(cba));
 
-        ff_copy_and_dup(cba_vect, ractx->adapt_cb, cba_idx + BLOCKSIZE / 2 - 1);
-        m[0] = (ff_irms(cba_vect) * rms) >> 12;
+        ff_copy_and_dup(ractx->buffer_a, ractx->adapt_cb, cba_idx + BLOCKSIZE / 2 - 1);
+        m[0] = (ff_irms(&ractx->dsp, ractx->buffer_a) * rms) >> 12;
     }
     fixed_cb_search(work + LPC_ORDER, coefs, data, cba_idx, &cb1_idx, &cb2_idx);
     for (i = 0; i < BLOCKSIZE; i++) {