From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 3/5] avcodec/h264chroma_template: Replace variable by constant in chroma mc
Date: Sun, 13 Jul 2025 03:10:28 +0200
Message-ID: <20250713011030.1156550-3-michael@niedermayer.cc> (raw)
In-Reply-To: <20250713011030.1156550-1-michael@niedermayer.cc>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/h264chroma_template.c | 30 +++++++++++++++---------------
1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/libavcodec/h264chroma_template.c b/libavcodec/h264chroma_template.c
index b9d24f5a0cd..b20811a71ae 100644
--- a/libavcodec/h264chroma_template.c
+++ b/libavcodec/h264chroma_template.c
@@ -54,7 +54,7 @@ static void FUNCC(OPNAME ## h264_chroma_mc1)(uint8_t *_dst /*align 8*/, const ui
}\
} else {\
for(i=0; i<h; i++){\
- OP(dst[0], (A*src[0]));\
+ OP(dst[0], (64*src[0]));\
dst+= stride;\
src+= stride;\
}\
@@ -91,8 +91,8 @@ static void FUNCC(OPNAME ## h264_chroma_mc2)(uint8_t *_dst /*align 8*/, const ui
}\
} else {\
for ( i = 0; i < h; i++){\
- OP(dst[0], A * src[0]);\
- OP(dst[1], A * src[1]);\
+ OP(dst[0], 64 * src[0]);\
+ OP(dst[1], 64 * src[1]);\
dst += stride;\
src += stride;\
}\
@@ -134,10 +134,10 @@ static void FUNCC(OPNAME ## h264_chroma_mc4)(uint8_t *_dst /*align 8*/, const ui
}\
} else {\
for ( i = 0; i < h; i++){\
- OP(dst[0], A * src[0]);\
- OP(dst[1], A * src[1]);\
- OP(dst[2], A * src[2]);\
- OP(dst[3], A * src[3]);\
+ OP(dst[0], 64 * src[0]);\
+ OP(dst[1], 64 * src[1]);\
+ OP(dst[2], 64 * src[2]);\
+ OP(dst[3], 64 * src[3]);\
dst += stride;\
src += stride;\
}\
@@ -187,14 +187,14 @@ static void FUNCC(OPNAME ## h264_chroma_mc8)(uint8_t *_dst /*align 8*/, const ui
}\
} else {\
for ( i = 0; i < h; i++){\
- OP(dst[0], A * src[0]);\
- OP(dst[1], A * src[1]);\
- OP(dst[2], A * src[2]);\
- OP(dst[3], A * src[3]);\
- OP(dst[4], A * src[4]);\
- OP(dst[5], A * src[5]);\
- OP(dst[6], A * src[6]);\
- OP(dst[7], A * src[7]);\
+ OP(dst[0], 64 * src[0]);\
+ OP(dst[1], 64 * src[1]);\
+ OP(dst[2], 64 * src[2]);\
+ OP(dst[3], 64 * src[3]);\
+ OP(dst[4], 64 * src[4]);\
+ OP(dst[5], 64 * src[5]);\
+ OP(dst[6], 64 * src[6]);\
+ OP(dst[7], 64 * src[7]);\
dst += stride;\
src += stride;\
}\
--
2.49.0
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next prev parent reply other threads:[~2025-07-13 1:11 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-13 1:10 [FFmpeg-devel] [PATCH 1/5] avformat/flvdec: Check for EOF in AudioPacketTypeMultichannelConfig Michael Niedermayer
2025-07-13 1:10 ` [FFmpeg-devel] [PATCH 2/5] avformat/concatdec: Clip duration in one more case in get_best_effort_duration() Michael Niedermayer
2025-07-13 1:10 ` Michael Niedermayer [this message]
2025-07-13 1:10 ` [FFmpeg-devel] [PATCH 4/5] avcodec/mpegvideo_dec: Fix lowres=3 field select interlaced mpeg4 frame Michael Niedermayer
2025-07-13 17:34 ` Andreas Rheinhardt
2025-07-13 1:10 ` [FFmpeg-devel] [PATCH 5/5] avcodec/osq: Fix 32bit sample overflow Michael Niedermayer
2025-07-13 17:37 ` Andreas Rheinhardt
2025-07-13 11:42 ` [FFmpeg-devel] [PATCH 1/5] avformat/flvdec: Check for EOF in AudioPacketTypeMultichannelConfig Timo Rothenpieler
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