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Diffstat (limited to 'libavcodec/aacps.c')
-rw-r--r--libavcodec/aacps.c32
1 files changed, 25 insertions, 7 deletions
diff --git a/libavcodec/aacps.c b/libavcodec/aacps.c
index 8f55c7f3c0..20012f9b31 100644
--- a/libavcodec/aacps.c
+++ b/libavcodec/aacps.c
@@ -2,20 +2,20 @@
* MPEG-4 Parametric Stereo decoding functions
* Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -139,7 +139,7 @@ static int ps_read_extension_data(GetBitContext *gb, PSContext *ps, int ps_exten
return get_bits_count(gb) - count;
}
-static void ipdopd_reset(int8_t *opd_hist, int8_t *ipd_hist)
+static void ipdopd_reset(int8_t *ipd_hist, int8_t *opd_hist)
{
int i;
for (i = 0; i < PS_MAX_NR_IPDOPD; i++) {
@@ -236,6 +236,7 @@ int ff_ps_read_data(AVCodecContext *avctx, GetBitContext *gb_host, PSContext *ps
if (!ps->num_env || ps->border_position[ps->num_env] < numQMFSlots - 1) {
//Create a fake envelope
int source = ps->num_env ? ps->num_env - 1 : ps->num_env_old - 1;
+ int b;
if (source >= 0 && source != ps->num_env) {
if (ps->enable_iid) {
memcpy(ps->iid_par+ps->num_env, ps->iid_par+source, sizeof(ps->iid_par[0]));
@@ -248,6 +249,22 @@ int ff_ps_read_data(AVCodecContext *avctx, GetBitContext *gb_host, PSContext *ps
memcpy(ps->opd_par+ps->num_env, ps->opd_par+source, sizeof(ps->opd_par[0]));
}
}
+ if (ps->enable_iid){
+ for (b = 0; b < ps->nr_iid_par; b++) {
+ if (FFABS(ps->iid_par[ps->num_env][b]) > 7 + 8 * ps->iid_quant) {
+ av_log(avctx, AV_LOG_ERROR, "iid_par invalid\n");
+ goto err;
+ }
+ }
+ }
+ if (ps->enable_icc){
+ for (b = 0; b < ps->nr_iid_par; b++) {
+ if (ps->icc_par[ps->num_env][b] > 7U) {
+ av_log(avctx, AV_LOG_ERROR, "icc_par invalid\n");
+ goto err;
+ }
+ }
+ }
ps->num_env++;
ps->border_position[ps->num_env] = numQMFSlots - 1;
}
@@ -415,6 +432,7 @@ static void hybrid_synthesis(PSDSPContext *dsp, float out[2][38][64],
#define DECAY_SLOPE 0.05f
/// Number of frequency bands that can be addressed by the parameter index, b(k)
static const int NR_PAR_BANDS[] = { 20, 34 };
+static const int NR_IPDOPD_BANDS[] = { 11, 17 };
/// Number of frequency bands that can be addressed by the sub subband index, k
static const int NR_BANDS[] = { 71, 91 };
/// Start frequency band for the all-pass filter decay slope
@@ -606,7 +624,6 @@ static void map_val_20_to_34(float par[PS_MAX_NR_IIDICC])
par[ 3] = par[ 2];
par[ 2] = par[ 1];
par[ 1] = (par[ 0] + par[ 1]) * 0.5f;
- par[ 0] = par[ 0];
}
static void decorrelation(PSContext *ps, float (*out)[32][2], const float (*s)[32][2], int is34)
@@ -811,7 +828,8 @@ static void stereo_processing(PSContext *ps, float (*l)[32][2], float (*r)[32][2
h12 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][1];
h21 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][2];
h22 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][3];
- if (!PS_BASELINE && ps->enable_ipdopd && b < ps->nr_ipdopd_par) {
+
+ if (!PS_BASELINE && ps->enable_ipdopd && b < NR_IPDOPD_BANDS[is34]) {
//The spec say says to only run this smoother when enable_ipdopd
//is set but the reference decoder appears to run it constantly
float h11i, h12i, h21i, h22i;