aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorMichael Niedermayer <michaelni@gmx.at>2003-04-25 00:21:53 +0000
committerMichael Niedermayer <michaelni@gmx.at>2003-04-25 00:21:53 +0000
commit5755c27f4717836ec3776f5bee86dea38d8016a8 (patch)
tree48da6dfba33c2d2436747821fc17c9a694d2e132
parent516b1f82acddab37d1df2c9d917779f0125423b0 (diff)
downloadffmpeg-5755c27f4717836ec3776f5bee86dea38d8016a8.tar.gz
doc fixes (forgot to commit)
Originally committed as revision 1819 to svn://svn.ffmpeg.org/ffmpeg/trunk
-rw-r--r--libavcodec/dsputil.h10
1 files changed, 6 insertions, 4 deletions
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index 376e06293f..cb45f6f2e4 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -20,6 +20,8 @@
/**
* @file dsputil.h
* DSP utils.
+ * note, many functions in here may use MMX which trashes the FPU state, it is
+ * absolutely necessary to call emms_c() between dsp & float/double code
*/
#ifndef DSPUTIL_H
@@ -147,7 +149,7 @@ typedef struct DSPContext {
/* maybe create an array for 16/8 functions */
/**
* Halfpel motion compensation with rounding (a+b+1)>>1.
- * *pixels_tab[ 0->16x16 1->8x8 ][ xhalfpel + 2*yhalfpel ]
+ * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
* @param block destination where the result is stored
* @param pixels source
* @param line_size number of bytes in a horizontal line of block
@@ -157,7 +159,7 @@ typedef struct DSPContext {
/**
* Halfpel motion compensation with rounding (a+b+1)>>1.
- * *pixels_tab[ 0->16x16 1->8x8 ][ xhalfpel + 2*yhalfpel ]
+ * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
* @param block destination into which the result is averaged (a+b+1)>>1
* @param pixels source
* @param line_size number of bytes in a horizontal line of block
@@ -167,7 +169,7 @@ typedef struct DSPContext {
/**
* Halfpel motion compensation with no rounding (a+b)>>1.
- * *pixels_tab[ 0->16x16 1->8x8 ][ xhalfpel + 2*yhalfpel ]
+ * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
* @param block destination where the result is stored
* @param pixels source
* @param line_size number of bytes in a horizontal line of block
@@ -177,7 +179,7 @@ typedef struct DSPContext {
/**
* Halfpel motion compensation with no rounding (a+b)>>1.
- * *pixels_tab[ 0->16x16 1->8x8 ][ xhalfpel + 2*yhalfpel ]
+ * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
* @param block destination into which the result is averaged (a+b)>>1
* @param pixels source
* @param line_size number of bytes in a horizontal line of block