[FFmpeg-cvslog] avcodec/cllc: Factor VLC_BITS/DEPTH out, do not use repeated literal numbers
Michael Niedermayer
git at videolan.org
Thu May 11 21:08:18 EEST 2017
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Thu May 11 18:35:24 2017 +0200| [e717fa1f0a66825fb10fec7debad768f311ee240] | committer: Michael Niedermayer
avcodec/cllc: Factor VLC_BITS/DEPTH out, do not use repeated literal numbers
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e717fa1f0a66825fb10fec7debad768f311ee240
---
libavcodec/cllc.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/libavcodec/cllc.c b/libavcodec/cllc.c
index 77de6e71c7..b53e2c539c 100644
--- a/libavcodec/cllc.c
+++ b/libavcodec/cllc.c
@@ -30,6 +30,10 @@
#include "internal.h"
#include "thread.h"
+#define VLC_BITS 7
+#define VLC_DEPTH 2
+
+
typedef struct CLLCContext {
AVCodecContext *avctx;
BswapDSPContext bdsp;
@@ -79,7 +83,7 @@ static int read_code_table(CLLCContext *ctx, GetBitContext *gb, VLC *vlc)
prefix <<= 1;
}
- return ff_init_vlc_sparse(vlc, 7, count, bits, 1, 1,
+ return ff_init_vlc_sparse(vlc, VLC_BITS, count, bits, 1, 1,
codes, 2, 2, symbols, 1, 1, 0);
}
@@ -106,7 +110,7 @@ static int read_argb_line(CLLCContext *ctx, GetBitContext *gb, int *top_left,
for (i = 0; i < ctx->avctx->width; i++) {
/* Always get the alpha component */
UPDATE_CACHE(bits, gb);
- GET_VLC(code, bits, gb, vlc[0].table, 7, 2);
+ GET_VLC(code, bits, gb, vlc[0].table, VLC_BITS, VLC_DEPTH);
pred[0] += code;
dst[0] = pred[0];
@@ -115,21 +119,21 @@ static int read_argb_line(CLLCContext *ctx, GetBitContext *gb, int *top_left,
if (dst[0]) {
/* Red */
UPDATE_CACHE(bits, gb);
- GET_VLC(code, bits, gb, vlc[1].table, 7, 2);
+ GET_VLC(code, bits, gb, vlc[1].table, VLC_BITS, VLC_DEPTH);
pred[1] += code;
dst[1] = pred[1];
/* Green */
UPDATE_CACHE(bits, gb);
- GET_VLC(code, bits, gb, vlc[2].table, 7, 2);
+ GET_VLC(code, bits, gb, vlc[2].table, VLC_BITS, VLC_DEPTH);
pred[2] += code;
dst[2] = pred[2];
/* Blue */
UPDATE_CACHE(bits, gb);
- GET_VLC(code, bits, gb, vlc[3].table, 7, 2);
+ GET_VLC(code, bits, gb, vlc[3].table, VLC_BITS, VLC_DEPTH);
pred[3] += code;
dst[3] = pred[3];
@@ -171,7 +175,7 @@ static int read_rgb24_component_line(CLLCContext *ctx, GetBitContext *gb,
/* Simultaneously read and restore the line */
for (i = 0; i < ctx->avctx->width; i++) {
UPDATE_CACHE(bits, gb);
- GET_VLC(code, bits, gb, vlc->table, 7, 2);
+ GET_VLC(code, bits, gb, vlc->table, VLC_BITS, VLC_DEPTH);
pred += code;
dst[0] = pred;
@@ -200,7 +204,7 @@ static int read_yuv_component_line(CLLCContext *ctx, GetBitContext *gb,
/* Simultaneously read and restore the line */
for (i = 0; i < ctx->avctx->width >> is_chroma; i++) {
UPDATE_CACHE(bits, gb);
- GET_VLC(code, bits, gb, vlc->table, 7, 2);
+ GET_VLC(code, bits, gb, vlc->table, VLC_BITS, VLC_DEPTH);
pred += code;
outbuf[i] = pred;
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