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avcodec/sp5x: Remove unused quant tables

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Only the fifth one is used.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2021-01-23 16:54:51 +01:00
parent f15477169e
commit d9f5bd15fd
3 changed files with 5 additions and 96 deletions
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4
libavcodec/mpegvideo_enc.c
View File

@ -3881,8 +3881,8 @@ static int encode_picture(MpegEncContext *s, int picture_number)
for(i=1;i<64;i++){
int j= s->idsp.idct_permutation[ff_zigzag_direct[i]];
s->intra_matrix[j] = sp5x_quant_table[5*2+0][i];
s->chroma_intra_matrix[j] = sp5x_quant_table[5*2+1][i];
s->intra_matrix[j] = sp5x_qscale_five_quant_table[0][i];
s->chroma_intra_matrix[j] = sp5x_qscale_five_quant_table[1][i];
}
s->y_dc_scale_table= y;
s->c_dc_scale_table= c;

92
libavcodec/sp5x.h
View File

@ -132,58 +132,8 @@ static const uint8_t sp5x_data_dht[] = {
};
static const uint8_t sp5x_quant_table[20][64]=
static const uint8_t sp5x_qscale_five_quant_table[][64]=
{
/* index 0, Q50 */
{ 16, 11, 12, 14, 12, 10, 16, 14, 13, 14, 18, 17, 16, 19, 24, 40,
26, 24, 22, 22, 24, 49, 35, 37, 29, 40, 58, 51, 61, 60, 57, 51,
56, 55, 64, 72, 92, 78, 64, 68, 87, 69, 55, 56, 80,109, 81, 87,
95, 98,103,104,103, 62, 77,113,121,112,100,120, 92,101,103, 99 },
{ 17, 18, 18, 24, 21, 24, 47, 26, 26, 47, 99, 66, 56, 66, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99 },
/* index 1, Q70 */
{ 10, 7, 7, 8, 7, 6, 10, 8, 8, 8, 11, 10, 10, 11, 14, 24,
16, 14, 13, 13, 14, 29, 21, 22, 17, 24, 35, 31, 37, 36, 34, 31,
34, 33, 38, 43, 55, 47, 38, 41, 52, 41, 33, 34, 48, 65, 49, 52,
57, 59, 62, 62, 62, 37, 46, 68, 73, 67, 60, 72, 55, 61, 62, 59 },
{ 10, 11, 11, 14, 13, 14, 28, 16, 16, 28, 59, 40, 34, 40, 59, 59,
59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59,
59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59,
59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59 },
/* index 2, Q80 */
{ 6, 4, 5, 6, 5, 4, 6, 6, 5, 6, 7, 7, 6, 8, 10, 16,
10, 10, 9, 9, 10, 20, 14, 15, 12, 16, 23, 20, 24, 24, 23, 20,
22, 22, 26, 29, 37, 31, 26, 27, 35, 28, 22, 22, 32, 44, 32, 35,
38, 39, 41, 42, 41, 25, 31, 45, 48, 45, 40, 48, 37, 40, 41, 40 },
{ 7, 7, 7, 10, 8, 10, 19, 10, 10, 19, 40, 26, 22, 26, 40, 40,
40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40,
40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40,
40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40 },
/* index 3, Q85 */
{ 5, 3, 4, 4, 4, 3, 5, 4, 4, 4, 5, 5, 5, 6, 7, 12,
8, 7, 7, 7, 7, 15, 11, 11, 9, 12, 17, 15, 18, 18, 17, 15,
17, 17, 19, 22, 28, 23, 19, 20, 26, 21, 17, 17, 24, 33, 24, 26,
29, 29, 31, 31, 31, 19, 23, 34, 36, 34, 30, 36, 28, 30, 31, 30 },
{ 5, 5, 5, 7, 6, 7, 14, 8, 8, 14, 30, 20, 17, 20, 30, 30,
30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30,
30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30,
30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30 },
/* index 4, Q90 */
{ 3, 2, 2, 3, 2, 2, 3, 3, 3, 3, 4, 3, 3, 4, 5, 8,
5, 5, 4, 4, 5, 10, 7, 7, 6, 8, 12, 10, 12, 12, 11, 10,
11, 11, 13, 14, 18, 16, 13, 14, 17, 14, 11, 11, 16, 22, 16, 17,
19, 20, 21, 21, 21, 12, 15, 23, 24, 22, 20, 24, 18, 20, 21, 20 },
{ 3, 4, 4, 5, 4, 5, 9, 5, 5, 9, 20, 13, 11, 13, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20 },
/* index 5, Q60 */
{ 13, 9, 10, 11, 10, 8, 13, 11, 10, 11, 14, 14, 13, 15, 19, 32,
21, 19, 18, 18, 19, 39, 28, 30, 23, 32, 46, 41, 49, 48, 46, 41,
@ -193,46 +143,6 @@ static const uint8_t sp5x_quant_table[20][64]=
79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79,
79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79,
79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79 },
/* index 6, Q25 */
{ 32, 22, 24, 28, 24, 20, 32, 28, 26, 28, 36, 34, 32, 38, 48, 80,
52, 48, 44, 44, 48, 98, 70, 74, 58, 80,116,102,122,120,114,102,
112,110,128,144,184,156,128,136,174,138,110,112,160,218,162,174,
190,196,206,208,206,124,154,226,242,224,200,240,184,202,206,198 },
{ 34, 36, 36, 48, 42, 48, 94, 52, 52, 94,198,132,112,132,198,198,
198,198,198,198,198,198,198,198,198,198,198,198,198,198,198,198,
198,198,198,198,198,198,198,198,198,198,198,198,198,198,198,198,
198,198,198,198,198,198,198,198,198,198,198,198,198,198,198,198 },
/* index 7, Q95 */
{ 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 2, 2, 2, 2, 4,
3, 2, 2, 2, 2, 5, 4, 4, 3, 4, 6, 5, 6, 6, 6, 5,
6, 6, 6, 7, 9, 8, 6, 7, 9, 7, 6, 6, 8, 11, 8, 9,
10, 10, 10, 10, 10, 6, 8, 11, 12, 11, 10, 12, 9, 10, 10, 10 },
{ 2, 2, 2, 2, 2, 2, 5, 3, 3, 5, 10, 7, 6, 7, 10, 10,
10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10 },
/* index 8, Q93 */
{ 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 3, 2, 2, 3, 3, 6,
4, 3, 3, 3, 3, 7, 5, 5, 4, 6, 8, 7, 9, 8, 8, 7,
8, 8, 9, 10, 13, 11, 9, 10, 12, 10, 8, 8, 11, 15, 11, 12,
13, 14, 14, 15, 14, 9, 11, 16, 17, 16, 14, 17, 13, 14, 14, 14 },
{ 2, 3, 3, 3, 3, 3, 7, 4, 4, 7, 14, 9, 8, 9, 14, 14,
14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14 },
/* index 9, Q40 */
{ 20, 14, 15, 18, 15, 13, 20, 18, 16, 18, 23, 21, 20, 24, 30, 50,
33, 30, 28, 28, 30, 61, 44, 46, 36, 50, 73, 64, 76, 75, 71, 64,
70, 69, 80, 90,115, 98, 80, 85,109, 86, 69, 70,100,136,101,109,
119,123,129,130,129, 78, 96,141,151,140,125,150,115,126,129,124 },
{ 21, 23, 23, 30, 26, 30, 59, 33, 33, 59,124, 83, 70, 83,124,124,
124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,
124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,
124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124 }
};
#endif /* AVCODEC_SP5X_H */

5
libavcodec/sp5xdec.c
View File

@ -35,7 +35,6 @@ int ff_sp5x_process_packet(AVCodecContext *avctx, AVPacket *avpkt)
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
AVBufferRef *buf_recoded;
const int qscale = 5;
uint8_t *recoded;
int i = 0, j = 0;
@ -52,8 +51,8 @@ int ff_sp5x_process_packet(AVCodecContext *avctx, AVPacket *avpkt)
recoded[j++] = 0xD8;
memcpy(recoded+j, &sp5x_data_dqt[0], sizeof(sp5x_data_dqt));
memcpy(recoded+j+5, &sp5x_quant_table[qscale * 2], 64);
memcpy(recoded+j+70, &sp5x_quant_table[(qscale * 2) + 1], 64);
memcpy(recoded + j + 5, &sp5x_qscale_five_quant_table[0], 64);
memcpy(recoded + j + 70, &sp5x_qscale_five_quant_table[1], 64);
j += sizeof(sp5x_data_dqt);
memcpy(recoded+j, &sp5x_data_dht[0], sizeof(sp5x_data_dht));