From: "Rémi Denis-Courmont" <remi@remlab.net>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH 1/3] lavc/jpeg2000dsp: make coefficients extern
Date: Sat, 28 Oct 2023 22:04:52 +0300
Message-ID: <20231028190455.64807-1-remi@remlab.net> (raw)
This is so that they can be loaded from assembler, rather than
duplicated.
---
libavcodec/jpeg2000dsp.c | 3 ++-
libavcodec/jpeg2000dsp.h | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/libavcodec/jpeg2000dsp.c b/libavcodec/jpeg2000dsp.c
index b1bff6d5b1..50bc1ecee6 100644
--- a/libavcodec/jpeg2000dsp.c
+++ b/libavcodec/jpeg2000dsp.c
@@ -26,7 +26,7 @@
/* Inverse ICT parameters in float and integer.
* int value = (float value) * (1<<16) */
-static const float f_ict_params[4] = {
+const float ff_jpeg2000_f_ict_params[4] = {
1.402f,
0.34413f,
0.71414f,
@@ -42,6 +42,7 @@ static const int i_ict_params[4] = {
static void ict_float(void *_src0, void *_src1, void *_src2, int csize)
{
+ const float *const f_ict_params = ff_jpeg2000_f_ict_params;
float *src0 = _src0, *src1 = _src1, *src2 = _src2;
float i0f, i1f, i2f;
int i;
diff --git a/libavcodec/jpeg2000dsp.h b/libavcodec/jpeg2000dsp.h
index 1ae5b95d9a..932dbb2102 100644
--- a/libavcodec/jpeg2000dsp.h
+++ b/libavcodec/jpeg2000dsp.h
@@ -30,6 +30,8 @@ typedef struct Jpeg2000DSPContext {
void (*mct_decode[FF_DWT_NB])(void *src0, void *src1, void *src2, int csize);
} Jpeg2000DSPContext;
+extern const float ff_jpeg2000_f_ict_params[4];
+
void ff_jpeg2000dsp_init(Jpeg2000DSPContext *c);
void ff_jpeg2000dsp_init_x86(Jpeg2000DSPContext *c);
--
2.42.0
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next reply other threads:[~2023-10-28 19:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-28 19:04 Rémi Denis-Courmont [this message]
2023-10-28 19:04 ` [FFmpeg-devel] [PATCH 2/3] lavc/jpeg2000dsp: R-V V ict_float Rémi Denis-Courmont
2023-10-28 19:04 ` [FFmpeg-devel] [PATCH 3/3] lavc/jpeg2000dsp: R-V V rct_int Rémi Denis-Courmont
2023-10-30 12:33 ` [FFmpeg-devel] [PATCH 1/3] lavc/jpeg2000dsp: make coefficients extern Tomas Härdin
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