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vdpaumpegdec: rename zigzag matrix

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This commit is contained in:
Carl-Anton Ingmarsson 2010-07-14 11:19:05 +02:00
parent c27468f1a1
commit b3ad9d7d04
1 changed files with 9 additions and 8 deletions
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15
sys/vdpau/mpeg/mpegutil.c
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@ -24,7 +24,7 @@
#include "mpegutil.h"
/* default intra quant matrix, in zig-zag order */
static const guint8 default_intra_quantizer_matrix[64] = {
const guint8 default_intra_quantizer_matrix[64] = {
8,
16, 16,
19, 16, 19,
@ -42,8 +42,7 @@ static const guint8 default_intra_quantizer_matrix[64] = {
83
};
guint8 mpeg2_scan[64] = {
/* Zig-Zag scan pattern */
const guint8 mpeg_zigzag_8x8[64] = {
0, 1, 8, 16, 9, 2, 3, 10,
17, 24, 32, 25, 18, 11, 4, 5,
12, 19, 26, 33, 40, 48, 41, 34,
@ -214,7 +213,7 @@ mpeg_util_parse_sequence_hdr (MPEGSeqHdr * hdr, GstBuffer * buffer)
if (load_intra_flag) {
gint i;
for (i = 0; i < 64; i++)
READ_UINT8 (&reader, hdr->intra_quantizer_matrix[mpeg2_scan[i]], 8);
READ_UINT8 (&reader, hdr->intra_quantizer_matrix[mpeg_zigzag_8x8[i]], 8);
} else
memcpy (hdr->intra_quantizer_matrix, default_intra_quantizer_matrix, 64);
@ -223,7 +222,8 @@ mpeg_util_parse_sequence_hdr (MPEGSeqHdr * hdr, GstBuffer * buffer)
if (load_non_intra_flag) {
gint i;
for (i = 0; i < 64; i++)
READ_UINT8 (&reader, hdr->non_intra_quantizer_matrix[mpeg2_scan[i]], 8);
READ_UINT8 (&reader, hdr->non_intra_quantizer_matrix[mpeg_zigzag_8x8[i]],
8);
} else
memset (hdr->non_intra_quantizer_matrix, 16, 64);
@ -399,7 +399,7 @@ mpeg_util_parse_quant_matrix (MPEGQuantMatrix * qm, GstBuffer * buffer)
if (load_intra_flag) {
gint i;
for (i = 0; i < 64; i++) {
READ_UINT8 (&reader, qm->intra_quantizer_matrix[mpeg2_scan[i]], 8);
READ_UINT8 (&reader, qm->intra_quantizer_matrix[mpeg_zigzag_8x8[i]], 8);
}
} else
memcpy (qm->intra_quantizer_matrix, default_intra_quantizer_matrix, 64);
@ -409,7 +409,8 @@ mpeg_util_parse_quant_matrix (MPEGQuantMatrix * qm, GstBuffer * buffer)
if (load_non_intra_flag) {
gint i;
for (i = 0; i < 64; i++) {
READ_UINT8 (&reader, qm->non_intra_quantizer_matrix[mpeg2_scan[i]], 8);
READ_UINT8 (&reader, qm->non_intra_quantizer_matrix[mpeg_zigzag_8x8[i]],
8);
}
} else
memset (qm->non_intra_quantizer_matrix, 16, 64);