Libav
imgutils.h
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12  * Lesser General Public License for more details.
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18 
19 #ifndef AVUTIL_IMGUTILS_H
20 #define AVUTIL_IMGUTILS_H
21 
30 #include "avutil.h"
31 #include "pixdesc.h"
32 
49 void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
50  const AVPixFmtDescriptor *pixdesc);
51 
58 int av_image_get_linesize(enum AVPixelFormat pix_fmt, int width, int plane);
59 
67 int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width);
68 
81  uint8_t *ptr, const int linesizes[4]);
82 
93 int av_image_alloc(uint8_t *pointers[4], int linesizes[4],
94  int w, int h, enum AVPixelFormat pix_fmt, int align);
95 
105 void av_image_copy_plane(uint8_t *dst, int dst_linesize,
106  const uint8_t *src, int src_linesize,
107  int bytewidth, int height);
108 
115 void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
116  const uint8_t *src_data[4], const int src_linesizes[4],
117  enum AVPixelFormat pix_fmt, int width, int height);
118 
129 int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx);
130 
131 int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt);
132 
138 #endif /* AVUTIL_IMGUTILS_H */
int av_image_get_linesize(enum AVPixelFormat pix_fmt, int width, int plane)
Compute the size of an image line with format pix_fmt and width width for the plane plane...
Definition: imgutils.c:48
int av_image_alloc(uint8_t *pointers[4], int linesizes[4], int w, int h, enum AVPixelFormat pix_fmt, int align)
Allocate an image with size w and h and pixel format pix_fmt, and fill pointers and linesizes accordi...
Definition: imgutils.c:179
external API header
void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4], const AVPixFmtDescriptor *pixdesc)
Compute the max pixel step for each plane of an image with a format described by pixdesc.
Definition: imgutils.c:30
uint8_t
const char data[16]
Definition: mxf.c:66
int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt)
Definition: imgutils.c:139
void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4], const uint8_t *src_data[4], const int src_linesizes[4], enum AVPixelFormat pix_fmt, int width, int height)
Copy image in src_data to dst_data.
Definition: imgutils.c:244
int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of the image can be address...
Definition: imgutils.c:220
enum AVPixelFormat pix_fmt
Definition: movenc.c:821
static int width
Definition: utils.c:156
int av_image_fill_pointers(uint8_t *data[4], enum AVPixelFormat pix_fmt, int height, uint8_t *ptr, const int linesizes[4])
Fill plane data pointers for an image with pixel format pix_fmt and height height.
Definition: imgutils.c:97
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:57
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
Definition: imgutils.c:66
int height
Definition: gxfenc.c:72
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:231
AVPixelFormat
Pixel format.
Definition: pixfmt.h:63