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avcodec/aac/aacdec_lpd: Remove dead code

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-03-31 17:45:38 +02:00
parent 2b9b4dde93
commit f5007a07d8
1 changed files with 0 additions and 63 deletions
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63
libavcodec/aac/aacdec_lpd.c
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@ -22,42 +22,6 @@
#include "aacdec_usac.h" #include "aacdec_usac.h"
#include "libavcodec/unary.h" #include "libavcodec/unary.h"
static const uint8_t aac_lpd_mode_tab[32][4] = {
{ 0, 0, 0, 0 },
{ 1, 0, 0, 0 },
{ 0, 1, 0, 0 },
{ 1, 1, 0, 0 },
{ 0, 0, 1, 0 },
{ 1, 0, 1, 0 },
{ 0, 1, 1, 0 },
{ 1, 1, 1, 0 },
{ 0, 0, 0, 1 },
{ 1, 0, 0, 1 },
{ 0, 1, 0, 1 },
{ 1, 1, 0, 1 },
{ 0, 0, 1, 1 },
{ 1, 0, 1, 1 },
{ 0, 1, 1, 1 },
{ 1, 1, 1, 1 },
{ 2, 2, 0, 0 },
{ 2, 2, 1, 0 },
{ 2, 2, 0, 1 },
{ 2, 2, 1, 1 },
{ 0, 0, 2, 2 },
{ 1, 0, 2, 2 },
{ 0, 1, 2, 2 },
{ 1, 1, 2, 2 },
{ 2, 2, 2, 2 },
{ 3, 3, 3, 3 },
/* Larger values are reserved, but permit them for resilience */
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
};
static void parse_qn(GetBitContext *gb, int *qn, int nk_mode, int no_qn) static void parse_qn(GetBitContext *gb, int *qn, int nk_mode, int no_qn)
{ {
if (nk_mode == 1) { if (nk_mode == 1) {
@ -148,8 +112,6 @@ int ff_aac_parse_fac_data(AACUsacElemData *ce, GetBitContext *gb,
int ff_aac_ldp_parse_channel_stream(AACDecContext *ac, AACUSACConfig *usac, int ff_aac_ldp_parse_channel_stream(AACDecContext *ac, AACUSACConfig *usac,
AACUsacElemData *ce, GetBitContext *gb) AACUsacElemData *ce, GetBitContext *gb)
{ {
int k;
const uint8_t *mod;
int first_ldp_flag; int first_ldp_flag;
ce->ldp.acelp_core_mode = get_bits(gb, 3); ce->ldp.acelp_core_mode = get_bits(gb, 3);
@ -159,35 +121,10 @@ int ff_aac_ldp_parse_channel_stream(AACDecContext *ac, AACUSACConfig *usac,
ce->ldp.core_mode_last = get_bits1(gb); ce->ldp.core_mode_last = get_bits1(gb);
ce->ldp.fac_data_present = get_bits1(gb); ce->ldp.fac_data_present = get_bits1(gb);
mod = aac_lpd_mode_tab[ce->ldp.lpd_mode];
first_ldp_flag = !ce->ldp.core_mode_last; first_ldp_flag = !ce->ldp.core_mode_last;
if (first_ldp_flag) if (first_ldp_flag)
ce->ldp.last_lpd_mode = -1; /* last_ldp_mode is a **STATEFUL** value */ ce->ldp.last_lpd_mode = -1; /* last_ldp_mode is a **STATEFUL** value */
k = 0;
while (k < 0) {
if (!k) {
if (ce->ldp.core_mode_last && ce->ldp.fac_data_present)
ff_aac_parse_fac_data(ce, gb, 0, usac->core_frame_len/8);
} else {
if (!ce->ldp.last_lpd_mode && mod[k] > 0 ||
ce->ldp.last_lpd_mode && !mod[k])
ff_aac_parse_fac_data(ce, gb, 0, usac->core_frame_len/8);
}
if (!mod[k]) {
// parse_acelp_coding();
ce->ldp.last_lpd_mode = 0;
k++;
} else {
// parse_tcx_coding();
ce->ldp.last_lpd_mode = mod[k];
k += (1 << (mod[k] - 1));
}
}
// parse_lpc_data(first_lpd_flag);
if (!ce->ldp.core_mode_last && ce->ldp.fac_data_present) { if (!ce->ldp.core_mode_last && ce->ldp.fac_data_present) {
uint16_t len_8 = usac->core_frame_len / 8; uint16_t len_8 = usac->core_frame_len / 8;
uint16_t len_16 = usac->core_frame_len / 16; uint16_t len_16 = usac->core_frame_len / 16;