virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

avcodec/vorbisenc: Combine codebooks, avoid relocations

Browse Source 
The Vorbis encoder has an array of a structure containing all
the ingredients for a codebook; this includes a pointer to
the actual codebook and some even have a pointer to an array
containing quant values. Each of these real codebooks is
an array of its own.
These pointers lead to relocations and therefore the array will
be placed in .data.rel.ro and not in .rodata.

This commit avoids the pointers altogether by combining all the actual
codebooks into one big array; the actual codebooks are now accessed
consecutively by incrementing the pointer used to access them by the
length of the actual codebook that has just been dealt with (said length
is contained in the structure describing the codebook). There is
no downside to this given that these codebooks are already only used
once during init.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-05-07 02:51:41 +02:00
parent e1e59d7383
commit 6546218572
2 changed files with 100 additions and 124 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

216
libavcodec/vorbis_enc_data.h
View File

@ -23,15 +23,12 @@
#include <stdint.h>
static const uint8_t codebook0[] = {
static const uint8_t codebooks[] = {
/* Codebook 0 - 16 elements */
2, 10, 8, 14, 7, 12, 11, 14, 1, 5, 3, 7, 4, 9, 7, 13,
};
static const uint8_t codebook1[] = {
/* Codebook 1 - 8 elements */
1, 4, 2, 6, 3, 7, 5, 7,
};
static const uint8_t codebook2[] = {
/* Codebook 2 - 256 elements */
1, 5, 7, 21, 5, 8, 9, 21, 10, 9, 12, 20, 20, 16, 20,
20, 4, 8, 9, 20, 6, 8, 9, 20, 11, 11, 13, 20, 20, 15,
17, 20, 9, 11, 14, 20, 8, 10, 15, 20, 11, 13, 15, 20, 20,
@ -50,17 +47,13 @@ static const uint8_t codebook2[] = {
19, 18, 20, 15, 16, 20, 20, 17, 17, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20,
};
static const uint8_t codebook3[] = {
/* Codebook 3 - 64 elements */
2, 3, 7, 13, 4, 4, 7, 15, 8, 6, 9, 17, 21, 16, 15,
21, 2, 5, 7, 11, 5, 5, 7, 14, 9, 7, 10, 16, 17, 15,
16, 21, 4, 7, 10, 17, 7, 7, 9, 15, 11, 9, 11, 16, 21,
18, 15, 21, 18, 21, 21, 21, 15, 17, 17, 19, 21, 19, 18, 20,
21, 21, 21, 20,
};
static const uint8_t codebook4[] = {
/* Codebook 4 - 128 elements */
5, 5, 5, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6,
5, 6, 5, 6, 5, 6, 5, 6, 5, 7, 5, 7, 5, 7, 5,
7, 5, 8, 6, 8, 6, 8, 6, 9, 6, 9, 6, 10, 6, 10,
@ -70,15 +63,11 @@ static const uint8_t codebook4[] = {
14, 11, 14, 12, 14, 13, 14, 13, 14, 14, 15, 16, 15, 15, 15,
14, 15, 17, 21, 22, 22, 21, 22, 22, 22, 22, 22, 22, 21, 21,
21, 21, 21, 21, 21, 21, 21, 21,
};
static const uint8_t codebook5[] = {
/* Codebook 5 - 32 elements */
2, 5, 5, 4, 5, 4, 5, 4, 5, 4, 6, 5, 6, 5, 6,
5, 6, 5, 7, 5, 7, 6, 8, 6, 8, 6, 8, 6, 9, 6,
9, 6,
};
static const uint8_t codebook6[] = {
/* Codebook 6 - 96 elements */
8, 5, 8, 4, 9, 4, 9, 4, 9, 4, 9, 4, 9, 4, 9,
4, 9, 4, 9, 4, 9, 4, 8, 4, 8, 4, 9, 5, 9, 5,
9, 5, 9, 5, 9, 6, 10, 6, 10, 7, 10, 8, 11, 9, 11,
@ -86,15 +75,11 @@ static const uint8_t codebook6[] = {
15, 15, 16, 16, 15, 16, 16, 16, 15, 18, 16, 15, 17, 17, 19,
19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
19, 19, 19, 19, 19, 19,
};
static const uint8_t codebook7[] = {
/* Codebook 7 - 32 elements */
1, 5, 5, 5, 5, 5, 5, 5, 6, 5, 6, 5, 6, 5, 6,
5, 6, 6, 7, 7, 7, 7, 8, 7, 8, 8, 9, 8, 10, 9,
10, 9,
};
static const uint8_t codebook8[] = {
/* Codebook 8 - 96 elements */
4, 3, 4, 3, 4, 4, 5, 4, 5, 4, 5, 5, 6, 5, 6,
5, 7, 5, 7, 6, 7, 6, 8, 7, 8, 7, 8, 7, 9, 8,
9, 9, 9, 9, 10, 10, 10, 11, 9, 12, 9, 12, 9, 15, 10,
@ -102,49 +87,35 @@ static const uint8_t codebook8[] = {
11, 14, 12, 13, 13, 14, 14, 13, 14, 15, 14, 16, 13, 13, 14,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 15, 15,
};
static const uint8_t codebook9[] = {
/* Codebook 9 - 17 elements */
4, 5, 4, 5, 3, 5, 3, 5, 3, 5, 4, 4, 4, 4, 5,
5, 5,
};
static const uint8_t codebook10[] = {
/* Codebook 10 - 32 elements */
3, 3, 4, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 5,
7, 5, 8, 6, 8, 6, 9, 7, 10, 7, 10, 8, 10, 8, 11,
9, 11,
};
static const uint8_t codebook11[] = {
3, 7, 3, 8, 3, 10, 3, 8, 3, 9, 3, 8, 4, 9, 4,
9, 5, 9, 6, 10, 6, 9, 7, 11, 7, 12, 9, 13, 10, 13,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12,
};
static const uint8_t codebook12[] = {
/* Codebook 11 - 78 elements */
3, 7, 3, 8, 3, 10, 3, 8, 3, 9, 3, 8, 4, 9, 4,
9, 5, 9, 6, 10, 6, 9, 7, 11, 7, 12, 9, 13, 10, 13,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12,
/* Codebook 12 - 17 elements */
4, 5, 4, 5, 4, 5, 4, 5, 3, 5, 3, 5, 3, 5, 4,
5, 4,
};
static const uint8_t codebook13[] = {
/* Codebook 13 - 32 elements */
4, 2, 4, 2, 5, 3, 5, 4, 6, 6, 6, 7, 7, 8, 7,
8, 7, 8, 7, 9, 8, 9, 8, 9, 8, 10, 8, 11, 9, 12,
9, 12,
};
static const uint8_t codebook14[] = {
/* Codebook 14 - 78 elements */
2, 5, 2, 6, 3, 6, 4, 7, 4, 7, 5, 9, 5, 11, 6,
11, 6, 11, 7, 11, 6, 11, 6, 11, 9, 11, 8, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10,
10, 10, 10,
};
static const uint8_t codebook15[] = {
/* Codebook 15 - 100 elements */
5, 6, 11, 11, 11, 11, 10, 10, 12, 11, 5, 2, 11, 5, 6,
6, 7, 9, 11, 13, 13, 10, 7, 11, 6, 7, 8, 9, 10, 12,
11, 5, 11, 6, 8, 7, 9, 11, 14, 15, 11, 6, 6, 8, 4,
@ -152,9 +123,7 @@ static const uint8_t codebook15[] = {
10, 7, 7, 8, 6, 5, 5, 7, 9, 9, 11, 8, 8, 11, 8,
7, 6, 6, 7, 9, 12, 11, 10, 13, 9, 9, 7, 7, 7, 9,
11, 13, 12, 15, 12, 11, 9, 8, 8, 8,
};
static const uint8_t codebook16[] = {
/* Codebook 16 - 1641 elements, real length 6561 */
2, 4, 4, 0, 0, 0, 0, 0, 0, 5, 6, 6, 0, 0, 0,
0, 0, 0, 5, 6, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@ -265,9 +234,7 @@ static const uint8_t codebook16[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6, 8, 8, 0, 0, 0, 0, 0, 0, 8, 9, 9, 0, 0, 0,
0, 0, 0, 8, 9, 8,
};
static const uint8_t codebook17[] = {
/* Codebook 17 - 443 elements, real length 625 */
2, 5, 5, 0, 0, 0, 5, 5, 0, 0, 0, 5, 5, 0, 0,
0, 7, 8, 0, 0, 0, 0, 0, 0, 0, 5, 6, 6, 0, 0,
0, 7, 7, 0, 0, 0, 7, 7, 0, 0, 0, 10, 10, 0, 0,
@ -298,9 +265,7 @@ static const uint8_t codebook17[] = {
0, 9, 9, 0, 0, 0, 9, 9, 0, 0, 0, 10, 10, 0, 0,
0, 0, 0, 0, 0, 8, 10, 10, 0, 0, 0, 9, 9, 0, 0,
0, 9, 9, 0, 0, 0, 10, 10,
};
static const uint8_t codebook18[] = {
/* Codebook 18 - 105 elements, real length 625 */
2, 4, 3, 6, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 4, 6, 6,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@ -308,26 +273,20 @@ static const uint8_t codebook18[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6, 6, 6, 9, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 6, 7, 9, 9,
};
static const uint8_t codebook19[] = {
/* Codebook 19 - 68 elements, real length 81 */
2, 3, 3, 6, 6, 0, 0, 0, 0, 0, 4, 4, 6, 6, 0,
0, 0, 0, 0, 4, 4, 6, 6, 0, 0, 0, 0, 0, 5, 5,
6, 6, 0, 0, 0, 0, 0, 0, 0, 6, 6, 0, 0, 0, 0,
0, 0, 0, 7, 8, 0, 0, 0, 0, 0, 0, 0, 7, 7, 0,
0, 0, 0, 0, 0, 0, 9, 9,
};
static const uint8_t codebook20[] = {
/* Codebook 20 - 81 elements */
1, 3, 4, 6, 6, 7, 7, 9, 9, 0, 5, 5, 7, 7, 7,
8, 9, 9, 0, 5, 5, 7, 7, 8, 8, 9, 9, 0, 7, 7,
8, 8, 8, 8, 10, 10, 0, 0, 0, 8, 8, 8, 8, 10, 10,
0, 0, 0, 9, 9, 9, 9, 10, 10, 0, 0, 0, 9, 9, 9,
9, 10, 10, 0, 0, 0, 10, 10, 10, 10, 11, 11, 0, 0, 0,
0, 0, 10, 10, 11, 11,
};
static const uint8_t codebook21[] = {
/* Codebook 21 - 289 elements */
2, 3, 3, 6, 6, 7, 7, 8, 8, 8, 8, 9, 9, 10, 10,
11, 10, 0, 5, 5, 7, 7, 8, 8, 9, 9, 9, 9, 10, 10,
10, 10, 11, 11, 0, 5, 5, 7, 7, 8, 8, 9, 9, 9, 9,
@ -348,18 +307,14 @@ static const uint8_t codebook21[] = {
0, 0, 0, 0, 0, 0, 0, 11, 11, 12, 12, 12, 12, 13, 13,
13, 13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 12, 12, 12,
13, 13, 13, 13,
};
static const uint8_t codebook22[] = {
/* Codebook 22 - 81 elements */
1, 4, 4, 7, 6, 6, 7, 6, 6, 4, 7, 7, 10, 9, 9,
11, 9, 9, 4, 7, 7, 10, 9, 9, 11, 9, 9, 7, 10, 10,
11, 11, 10, 12, 11, 11, 6, 9, 9, 11, 10, 10, 11, 10, 10,
6, 9, 9, 11, 10, 10, 11, 10, 10, 7, 11, 11, 11, 11, 11,
12, 11, 11, 6, 9, 9, 11, 10, 10, 11, 10, 10, 6, 9, 9,
11, 10, 10, 11, 10, 10,
};
static const uint8_t codebook23[] = {
/* Codebook 23 - 121 elements */
2, 4, 4, 6, 6, 7, 7, 7, 7, 8, 8, 10, 5, 5, 6,
6, 7, 7, 8, 8, 8, 8, 10, 5, 5, 6, 6, 7, 7, 8,
8, 8, 8, 10, 6, 6, 7, 7, 8, 8, 8, 8, 8, 8, 10,
@ -369,9 +324,7 @@ static const uint8_t codebook23[] = {
10, 10, 10, 8, 8, 8, 8, 8, 8, 10, 10, 10, 10, 10, 9,
9, 8, 8, 9, 8, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8,
8,
};
static const uint8_t codebook24[] = {
/* Codebook 24 - 169 elements */
1, 4, 4, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 6, 5,
5, 7, 7, 8, 8, 8, 8, 9, 9, 10, 10, 7, 5, 5, 7,
7, 8, 8, 8, 8, 9, 9, 11, 10, 0, 8, 8, 8, 8, 9,
@ -384,14 +337,10 @@ static const uint8_t codebook24[] = {
11, 11, 11, 11, 12, 12, 13, 13, 0, 0, 0, 0, 0, 12, 12,
12, 12, 13, 13, 14, 13, 0, 0, 0, 0, 0, 13, 13, 12, 12,
13, 12, 14, 13,
};
static const uint8_t codebook25[] = {
/* Codebook 25 - 25 elements */
2, 4, 4, 5, 5, 6, 5, 5, 5, 5, 6, 4, 5, 5, 5,
6, 5, 5, 5, 5, 6, 6, 6, 5, 5,
};
static const uint8_t codebook26[] = {
/* Codebook 26 - 169 elements */
1, 4, 4, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 4, 9,
8, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 9, 7, 12,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
@ -404,9 +353,7 @@ static const uint8_t codebook26[] = {
12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
11, 11, 11, 11,
};
static const uint8_t codebook27[] = {
/* Codebook 27 - 225 elements */
1, 4, 4, 6, 6, 7, 7, 8, 7, 9, 9, 10, 10, 10, 10,
6, 5, 5, 7, 7, 8, 8, 10, 8, 11, 10, 12, 12, 13, 13,
6, 5, 5, 7, 7, 8, 8, 10, 9, 11, 11, 12, 12, 13, 12,
@ -422,9 +369,7 @@ static const uint8_t codebook27[] = {
17, 18, 18, 17, 18, 13, 12, 13, 10, 12, 11, 14, 14, 14, 14,
17, 18, 18, 18, 18, 15, 16, 12, 12, 13, 10, 14, 12, 14, 15,
18, 18, 18, 16, 17, 16, 14, 12, 11, 13, 10, 13, 13, 14, 15,
};
static const uint8_t codebook28[] = {
/* Codebook 28 - 289 elements */
2, 5, 5, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8,
8, 8, 10, 6, 6, 7, 7, 8, 7, 8, 8, 8, 8, 8, 9,
9, 9, 9, 9, 10, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8,
@ -447,45 +392,72 @@ static const uint8_t codebook28[] = {
9, 10, 10, 10,
};
static const uint8_t quant_tables[] = {
/* Codebook 16 */
1, 0, 2,
/* Codebook 17 */
2, 1, 3, 0, 4,
/* Codebook 18 */
2, 1, 3, 0, 4,
/* Codebook 19 */
4, 3, 5, 2, 6, 1, 7, 0, 8,
/* Codebook 20 */
4, 3, 5, 2, 6, 1, 7, 0, 8,
/* Codebook 21 */
8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15, 0, 16,
/* Codebook 22 */
1, 0, 2,
/* Codebook 23 */
5, 4, 6, 3, 7, 2, 8, 1, 9, 0, 10,
/* Codebook 24 */
6, 5, 7, 4, 8, 3, 9, 2, 10, 1, 11, 0, 12,
/* Codebook 25 */
2, 1, 3, 0, 4,
/* Codebook 26 */
6, 5, 7, 4, 8, 3, 9, 2, 10, 1, 11, 0, 12,
/* Codebook 27 */
7, 6, 8, 5, 9, 4, 10, 3, 11, 2, 12, 1, 13, 0, 14,
/* Codebook 28 */
8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15, 0, 16,
};
static const struct {
int dim;
int len;
int real_len;
const uint8_t *clens;
int lookup;
float min;
float delta;
const uint8_t *quant;
} cvectors[] = {
{ 2, 16, 16, codebook0, 0 },
{ 2, 8, 8, codebook1, 0 },
{ 2, 256, 256, codebook2, 0 },
{ 2, 64, 64, codebook3, 0 },
{ 2, 128, 128, codebook4, 0 },
{ 2, 32, 32, codebook5, 0 },
{ 2, 96, 96, codebook6, 0 },
{ 2, 32, 32, codebook7, 0 },
{ 2, 96, 96, codebook8, 0 },
{ 2, 17, 17, codebook9, 0 },
{ 2, 32, 32, codebook10, 0 },
{ 2, 78, 78, codebook11, 0 },
{ 2, 17, 17, codebook12, 0 },
{ 2, 32, 32, codebook13, 0 },
{ 2, 78, 78, codebook14, 0 },
{ 2, 100, 100, codebook15, 0 },
{ 8, 1641, 6561, codebook16, 1, -1.0, 1.0, (const uint8_t[]){ 1, 0, 2, } },
{ 4, 443, 625, codebook17, 1, -2.0, 1.0, (const uint8_t[]){ 2, 1, 3, 0, 4, } },
{ 4, 105, 625, codebook18, 1, -2.0, 1.0, (const uint8_t[]){ 2, 1, 3, 0, 4, } },
{ 2, 68, 81, codebook19, 1, -4.0, 1.0, (const uint8_t[]){ 4, 3, 5, 2, 6, 1, 7, 0, 8, } },
{ 2, 81, 81, codebook20, 1, -4.0, 1.0, (const uint8_t[]){ 4, 3, 5, 2, 6, 1, 7, 0, 8, } },
{ 2, 289, 289, codebook21, 1, -8.0, 1.0, (const uint8_t[]){ 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15, 0, 16, } },
{ 4, 81, 81, codebook22, 1, -11.0, 11.0, (const uint8_t[]){ 1, 0, 2, } },
{ 2, 121, 121, codebook23, 1, -5.0, 1.0, (const uint8_t[]){ 5, 4, 6, 3, 7, 2, 8, 1, 9, 0, 10, } },
{ 2, 169, 169, codebook24, 1, -30.0, 5.0, (const uint8_t[]){ 6, 5, 7, 4, 8, 3, 9, 2, 10, 1, 11, 0, 12, } },
{ 2, 25, 25, codebook25, 1, -2.0, 1.0, (const uint8_t[]){ 2, 1, 3, 0, 4, } },
{ 2, 169, 169, codebook26, 1, -1530.0, 255.0, (const uint8_t[]){ 6, 5, 7, 4, 8, 3, 9, 2, 10, 1, 11, 0, 12, } },
{ 2, 225, 225, codebook27, 1, -119.0, 17.0, (const uint8_t[]){ 7, 6, 8, 5, 9, 4, 10, 3, 11, 2, 12, 1, 13, 0, 14, } },
{ 2, 289, 289, codebook28, 1, -8.0, 1.0, (const uint8_t[]){ 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15, 0, 16, } },
{ 2, 16, 16, 0 },
{ 2, 8, 8, 0 },
{ 2, 256, 256, 0 },
{ 2, 64, 64, 0 },
{ 2, 128, 128, 0 },
{ 2, 32, 32, 0 },
{ 2, 96, 96, 0 },
{ 2, 32, 32, 0 },
{ 2, 96, 96, 0 },
{ 2, 17, 17, 0 },
{ 2, 32, 32, 0 },
{ 2, 78, 78, 0 },
{ 2, 17, 17, 0 },
{ 2, 32, 32, 0 },
{ 2, 78, 78, 0 },
{ 2, 100, 100, 0 },
{ 8, 1641, 6561, 1, -1.0, 1.0 },
{ 4, 443, 625, 1, -2.0, 1.0 },
{ 4, 105, 625, 1, -2.0, 1.0 },
{ 2, 68, 81, 1, -4.0, 1.0 },
{ 2, 81, 81, 1, -4.0, 1.0 },
{ 2, 289, 289, 1, -8.0, 1.0 },
{ 4, 81, 81, 1, -11.0, 11.0 },
{ 2, 121, 121, 1, -5.0, 1.0 },
{ 2, 169, 169, 1, -30.0, 5.0 },
{ 2, 25, 25, 1, -2.0, 1.0 },
{ 2, 169, 169, 1, -1530.0, 255.0 },
{ 2, 225, 225, 1, -119.0, 17.0 },
{ 2, 289, 289, 1, -8.0, 1.0 },
};
static const struct {

8
libavcodec/vorbisenc.c
View File

@ -272,6 +272,7 @@ static int create_vorbis_context(vorbis_enc_context *venc,
vorbis_enc_floor *fc;
vorbis_enc_residue *rc;
vorbis_enc_mapping *mc;
const uint8_t *clens, *quant;
int i, book, ret;
venc->channels = avctx->channels;
@ -286,6 +287,8 @@ static int create_vorbis_context(vorbis_enc_context *venc,
// codebook 0..14 - floor1 book, values 0..255
// codebook 15 residue masterbook
// codebook 16..29 residue
clens = codebooks;
quant = quant_tables;
for (book = 0; book < venc->ncodebooks; book++) {
vorbis_enc_codebook *cb = &venc->codebooks[book];
int vals;
@ -300,8 +303,9 @@ static int create_vorbis_context(vorbis_enc_context *venc,
cb->codewords = av_malloc_array(cb->nentries, sizeof(uint32_t));
if (!cb->lens || !cb->codewords)
return AVERROR(ENOMEM);
memcpy(cb->lens, cvectors[book].clens, cvectors[book].len);
memcpy(cb->lens, clens, cvectors[book].len);
memset(cb->lens + cvectors[book].len, 0, cb->nentries - cvectors[book].len);
clens += cvectors[book].len;
if (cb->lookup) {
vals = cb_lookup_vals(cb->lookup, cb->ndimensions, cb->nentries);
@ -309,7 +313,7 @@ static int create_vorbis_context(vorbis_enc_context *venc,
if (!cb->quantlist)
return AVERROR(ENOMEM);
for (i = 0; i < vals; i++)
cb->quantlist[i] = cvectors[book].quant[i];
cb->quantlist[i] = *quant++;
} else {
cb->quantlist = NULL;
}