[FFmpeg-cvslog] mss3: use standard zigzag table
Kostya Shishkov
git at videolan.org
Mon Jul 9 22:43:10 CEST 2012
ffmpeg | branch: master | Kostya Shishkov <kostya.shishkov at gmail.com> | Mon Jul 9 18:15:27 2012 +0200| [5467742232c312b7d61dca7ac57447f728d8d6c9] | committer: Kostya Shishkov
mss3: use standard zigzag table
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5467742232c312b7d61dca7ac57447f728d8d6c9
---
libavcodec/mss3.c | 14 ++------------
1 file changed, 2 insertions(+), 12 deletions(-)
diff --git a/libavcodec/mss3.c b/libavcodec/mss3.c
index 7ae1b11..e163ec7 100644
--- a/libavcodec/mss3.c
+++ b/libavcodec/mss3.c
@@ -26,6 +26,7 @@
#include "avcodec.h"
#include "bytestream.h"
+#include "dsputil.h"
#include "mss34dsp.h"
#define HEADER_SIZE 27
@@ -120,17 +121,6 @@ typedef struct MSS3Context {
int hblock[16 * 16];
} MSS3Context;
-static const uint8_t zigzag_scan[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,
- 27, 20, 13, 6, 7, 14, 21, 28,
- 35, 42, 49, 56, 57, 50, 43, 36,
- 29, 22, 15, 23, 30, 37, 44, 51,
- 58, 59, 52, 45, 38, 31, 39, 46,
- 53, 60, 61, 54, 47, 55, 62, 63
-};
-
static void model2_reset(Model2 *m)
{
@@ -557,7 +547,7 @@ static int decode_dct(RangeCoder *c, DCTBlockCoder *bc, int *block,
if (!sign)
val = -val;
- zz_pos = zigzag_scan[pos];
+ zz_pos = ff_zigzag_direct[pos];
block[zz_pos] = val * bc->qmat[zz_pos];
pos++;
}
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