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Code Issues Releases Activity

avcodec/aacps_common: Use minimal VLC nb_bits/max_depth

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Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-12-28 03:31:05 +01:00
parent 3693e2fcee
commit 4f1ae39036
1 changed files with 18 additions and 18 deletions
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36
libavcodec/aacps_common.c
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@ -61,7 +61,7 @@ static const int huff_iid[] = {
static VLC vlc_ps[10];
#define READ_PAR_DATA(PAR, OFFSET, MASK, ERR_CONDITION) \
#define READ_PAR_DATA(PAR, OFFSET, MASK, ERR_CONDITION, NB_BITS, MAX_DEPTH) \
/** \
* Read Inter-channel Intensity Difference/Inter-Channel Coherence/ \
* Inter-channel Phase Difference/Overall Phase Difference parameters from the \
@ -83,7 +83,7 @@ static int read_ ## PAR ## _data(AVCodecContext *avctx, GetBitContext *gb, PSCom
int e_prev = e ? e - 1 : ps->num_env_old - 1; \
e_prev = FFMAX(e_prev, 0); \
for (b = 0; b < num; b++) { \
int val = PAR[e_prev][b] + get_vlc2(gb, vlc_table, 9, 3) - OFFSET; \
int val = PAR[e_prev][b] + get_vlc2(gb, vlc_table, NB_BITS, MAX_DEPTH) - OFFSET; \
if (MASK) val &= MASK; \
PAR[e][b] = val; \
if (ERR_CONDITION) \
@ -92,7 +92,7 @@ static int read_ ## PAR ## _data(AVCodecContext *avctx, GetBitContext *gb, PSCom
} else { \
int val = 0; \
for (b = 0; b < num; b++) { \
val += get_vlc2(gb, vlc_table, 9, 3) - OFFSET; \
val += get_vlc2(gb, vlc_table, NB_BITS, MAX_DEPTH) - OFFSET; \
if (MASK) val &= MASK; \
PAR[e][b] = val; \
if (ERR_CONDITION) \
@ -105,9 +105,9 @@ err: \
return AVERROR_INVALIDDATA; \
}
READ_PAR_DATA(iid, huff_offset[table_idx], 0, FFABS(ps->iid_par[e][b]) > 7 + 8 * ps->iid_quant)
READ_PAR_DATA(icc, huff_offset[table_idx], 0, ps->icc_par[e][b] > 7U)
READ_PAR_DATA(ipdopd, 0, 0x07, 0)
READ_PAR_DATA(iid, huff_offset[table_idx], 0, FFABS(ps->iid_par[e][b]) > 7 + 8 * ps->iid_quant, 9, 3)
READ_PAR_DATA(icc, huff_offset[table_idx], 0, ps->icc_par[e][b] > 7U, 9, 2)
READ_PAR_DATA(ipdopd, 0, 0x07, 0, 5, 1)
static int ps_read_extension_data(GetBitContext *gb, PSCommonContext *ps,
int ps_extension_id)
@ -289,8 +289,8 @@ err:
return bits_left;
}
#define PS_INIT_VLC_STATIC(num, size) \
INIT_VLC_STATIC(&vlc_ps[num], 9, ps_tmp[num].table_size / ps_tmp[num].elem_size, \
#define PS_INIT_VLC_STATIC(num, nb_bits, size) \
INIT_VLC_STATIC(&vlc_ps[num], nb_bits, ps_tmp[num].table_size / ps_tmp[num].elem_size, \
ps_tmp[num].ps_bits, 1, 1, \
ps_tmp[num].ps_codes, ps_tmp[num].elem_size, ps_tmp[num].elem_size, \
size);
@ -317,16 +317,16 @@ static av_cold void ps_init_common(void)
PS_VLC_ROW(huff_opd_dt),
};
PS_INIT_VLC_STATIC(0, 1544);
PS_INIT_VLC_STATIC(1, 832);
PS_INIT_VLC_STATIC(2, 1024);
PS_INIT_VLC_STATIC(3, 1036);
PS_INIT_VLC_STATIC(4, 544);
PS_INIT_VLC_STATIC(5, 544);
PS_INIT_VLC_STATIC(6, 512);
PS_INIT_VLC_STATIC(7, 512);
PS_INIT_VLC_STATIC(8, 512);
PS_INIT_VLC_STATIC(9, 512);
PS_INIT_VLC_STATIC(0, 9, 1544);
PS_INIT_VLC_STATIC(1, 9, 832);
PS_INIT_VLC_STATIC(2, 9, 1024);
PS_INIT_VLC_STATIC(3, 9, 1036);
PS_INIT_VLC_STATIC(4, 9, 544);
PS_INIT_VLC_STATIC(5, 9, 544);
PS_INIT_VLC_STATIC(6, 5, 32);
PS_INIT_VLC_STATIC(7, 5, 32);
PS_INIT_VLC_STATIC(8, 5, 32);
PS_INIT_VLC_STATIC(9, 5, 32);
}
av_cold void ff_ps_init_common(void)