Chiebot-Mirror
/
FFmpeg
8
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

avcodec/asvdec: Avoid superfluous VLC structures

Browse Source 
Of all these VLCs here, only VLC.table was really used
after init, so use the ff_vlc_init_tables API
to get rid of them.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
release/7.0
Andreas Rheinhardt 2 years ago
parent ab8a8246c8
commit a99285aedf
1 changed files with 25 additions and 25 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 50
      libavcodec/asvdec.c

50
libavcodec/asvdec.c
Unescape View File

@ -45,11 +45,11 @@
#define ASV1_LEVEL_VLC_BITS 4
#define ASV2_LEVEL_VLC_BITS 10
static VLC ccp_vlc;
static VLC level_vlc;
static VLC dc_ccp_vlc;
static VLC ac_ccp_vlc;
static VLC asv2_level_vlc;
static VLCElem ccp_vlc[32];
static VLCElem level_vlc[16];
static VLCElem dc_ccp_vlc[16];
static VLCElem ac_ccp_vlc[64];
static VLCElem asv2_level_vlc[1024];
typedef struct ASVDecContext {
ASVCommonContext c;
@ -67,26 +67,26 @@ typedef struct ASVDecContext {
static av_cold void init_vlcs(void)
{
VLC_INIT_STATIC(&ccp_vlc, CCP_VLC_BITS, 17,
&ff_asv_ccp_tab[0][1], 2, 1,
&ff_asv_ccp_tab[0][0], 2, 1, 32);
VLC_INIT_LE_STATIC(&dc_ccp_vlc, DC_CCP_VLC_BITS, 8,
&ff_asv_dc_ccp_tab[0][1], 2, 1,
&ff_asv_dc_ccp_tab[0][0], 2, 1, 16);
VLC_INIT_LE_STATIC(&ac_ccp_vlc, AC_CCP_VLC_BITS, 16,
&ff_asv_ac_ccp_tab[0][1], 2, 1,
&ff_asv_ac_ccp_tab[0][0], 2, 1, 64);
VLC_INIT_STATIC(&level_vlc, ASV1_LEVEL_VLC_BITS, 7,
&ff_asv_level_tab[0][1], 2, 1,
&ff_asv_level_tab[0][0], 2, 1, 16);
VLC_INIT_LE_STATIC(&asv2_level_vlc, ASV2_LEVEL_VLC_BITS, 63,
&ff_asv2_level_tab[0][1], 4, 2,
&ff_asv2_level_tab[0][0], 4, 2, 1024);
VLC_INIT_STATIC_TABLE(ccp_vlc, CCP_VLC_BITS, 17,
&ff_asv_ccp_tab[0][1], 2, 1,
&ff_asv_ccp_tab[0][0], 2, 1, 0);
VLC_INIT_STATIC_TABLE(dc_ccp_vlc, DC_CCP_VLC_BITS, 8,
&ff_asv_dc_ccp_tab[0][1], 2, 1,
&ff_asv_dc_ccp_tab[0][0], 2, 1, VLC_INIT_LE);
VLC_INIT_STATIC_TABLE(ac_ccp_vlc, AC_CCP_VLC_BITS, 16,
&ff_asv_ac_ccp_tab[0][1], 2, 1,
&ff_asv_ac_ccp_tab[0][0], 2, 1, VLC_INIT_LE);
VLC_INIT_STATIC_TABLE(level_vlc, ASV1_LEVEL_VLC_BITS, 7,
&ff_asv_level_tab[0][1], 2, 1,
&ff_asv_level_tab[0][0], 2, 1, 0);
VLC_INIT_STATIC_TABLE(asv2_level_vlc, ASV2_LEVEL_VLC_BITS, 63,
&ff_asv2_level_tab[0][1], 4, 2,
&ff_asv2_level_tab[0][0], 4, 2, VLC_INIT_LE);
}
static inline int asv1_get_level(GetBitContext *gb)
{
int code = get_vlc2(gb, level_vlc.table, ASV1_LEVEL_VLC_BITS, 1);
int code = get_vlc2(gb, level_vlc, ASV1_LEVEL_VLC_BITS, 1);
if (code == 3)
return get_sbits(gb, 8);
@ -115,7 +115,7 @@ static inline int asv2_get_vlc2(GetBitContext *gb, const VLCElem *table, int bit
static inline int asv2_get_level(GetBitContext *gb)
{
int code = asv2_get_vlc2(gb, asv2_level_vlc.table, ASV2_LEVEL_VLC_BITS);
int code = asv2_get_vlc2(gb, asv2_level_vlc, ASV2_LEVEL_VLC_BITS);
if (code == 31)
return (int8_t) get_bits_le(gb, 8);
@ -130,7 +130,7 @@ static inline int asv1_decode_block(ASVDecContext *a, int16_t block[64])
block[0] = 8 * get_bits(&a->gb, 8);
for (i = 0; i < 11; i++) {
const int ccp = get_vlc2(&a->gb, ccp_vlc.table, CCP_VLC_BITS, 1);
const int ccp = get_vlc2(&a->gb, ccp_vlc, CCP_VLC_BITS, 1);
if (ccp) {
if (ccp == 16)
@ -162,7 +162,7 @@ static inline int asv2_decode_block(ASVDecContext *a, int16_t block[64])
block[0] = 8 * get_bits_le(&a->gb, 8);
ccp = asv2_get_vlc2(&a->gb, dc_ccp_vlc.table, DC_CCP_VLC_BITS);
ccp = asv2_get_vlc2(&a->gb, dc_ccp_vlc, DC_CCP_VLC_BITS);
if (ccp) {
if (ccp & 4)
block[a->permutated_scantable[1]] = (asv2_get_level(&a->gb) * a->intra_matrix[1]) >> 4;
@ -173,7 +173,7 @@ static inline int asv2_decode_block(ASVDecContext *a, int16_t block[64])
}
for (i = 1; i < count + 1; i++) {
const int ccp = asv2_get_vlc2(&a->gb, ac_ccp_vlc.table, AC_CCP_VLC_BITS);
const int ccp = asv2_get_vlc2(&a->gb, ac_ccp_vlc, AC_CCP_VLC_BITS);
if (ccp) {
if (ccp & 8)

Write Preview
Loading…
Cancel
Save