Commit e0cffbe7 authored by Diego Biurrun's avatar Diego Biurrun

spelling/wording/grammar cosmetics

Originally committed as revision 17588 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent ac00575d
/*
* Pixel Format descriptor
* pixel format descriptor
* Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
......@@ -142,7 +142,7 @@ static const AVPixFmtDescriptor pix_fmt_desc[PIX_FMT_NB] = {
},
.flags = PIX_FMT_BE,
},
//FIXME chaneg pix fmt defines so that we have a LE & BE instead of a Native endian
//FIXME change pix fmt defines so that we have a LE & BE instead of a native-endian
#if 0
[PIX_FMT_RGB565_LE] = {
.nb_channels = 3,
......
/*
* Pixel Format descriptor
* pixel format descriptor
* Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
......@@ -32,38 +32,39 @@ typedef struct AVComponentDescriptor{
}AVComponentDescriptor;
/**
* Descriptor that unambigously describes how the bits of a pixel are
* Descriptor that unambiguously describes how the bits of a pixel are
* stored in the up to 4 data planes of an image. It also stores the
* subsampling factors and number of components.
*
* @note This is seperate of the colorspace (RGB, YCbCr, YPbPr, jpeg style YUV and all the YUV variants)
* AVPixFmtDescripto just stores how values are stored not what these values represent.
* @note This is separate of the colorspace (RGB, YCbCr, YPbPr, JPEG-style YUV
* and all the YUV variants) AVPixFmtDescriptor just stores how values
* are stored not what these values represent.
*/
typedef struct AVPixFmtDescriptor{
uint8_t nb_channels; ///< The number of components each pixel has, (1-4)
/**
* Amount to shift the luma width right to find the chroma width, this is for
* example 1 for YV12
* chroma_width = -((-luma_width )>>log2_chroma_w)
* note above is needed to ensure rounding up
* Amount to shift the luma width right to find the chroma width.
* For YV12 this is 1 for example.
* chroma_width = -((-luma_width) >> log2_chroma_w)
* The note above is needed to ensure rounding up.
*/
uint8_t log2_chroma_w; ///< chroma_width = -((-luma_width )>>log2_chroma_w)
/**
* Amount to shift the luma height right to find the chroma height, this is for
* example 1 for YV12
* chroma_height= -((-luma_height)>>log2_chroma_h)
* note above is needed to ensure rounding up
* Amount to shift the luma height right to find the chroma height.
* For YV12 this is 1 for example.
* chroma_height= -((-luma_height) >> log2_chroma_h)
* The note above is needed to ensure rounding up.
*/
uint8_t log2_chroma_h;
uint8_t flags;
AVComponentDescriptor comp[4]; ///< parameters that describes how pixels are packed
AVComponentDescriptor comp[4]; ///< parameters that describe how pixels are packed
}AVPixFmtDescriptor;
#define PIX_FMT_BE 1 ///< Big endian
#define PIX_FMT_PAL 2 ///< Pixel format has a palette i data[1], values are indexes in this palette
#define PIX_FMT_BITSTREAM 4 ///< All values of a component are bitwise packed end to end
#define PIX_FMT_BE 1 ///< big-endian
#define PIX_FMT_PAL 2 ///< Pixel format has a palette i data[1], values are indexes in this palette.
#define PIX_FMT_BITSTREAM 4 ///< All values of a component are bit-wise packed end to end.
static inline void read_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4], AVPixFmtDescriptor *desc, int x, int y, int c, int w)
......
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