diff options
Diffstat (limited to 'src/main/jni/ffmpeg/include/libavutil/imgutils.h')
-rw-r--r-- | src/main/jni/ffmpeg/include/libavutil/imgutils.h | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/src/main/jni/ffmpeg/include/libavutil/imgutils.h b/src/main/jni/ffmpeg/include/libavutil/imgutils.h deleted file mode 100644 index 23282a38f..000000000 --- a/src/main/jni/ffmpeg/include/libavutil/imgutils.h +++ /dev/null @@ -1,213 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVUTIL_IMGUTILS_H -#define AVUTIL_IMGUTILS_H - -/** - * @file - * misc image utilities - * - * @addtogroup lavu_picture - * @{ - */ - -#include "avutil.h" -#include "pixdesc.h" -#include "rational.h" - -/** - * Compute the max pixel step for each plane of an image with a - * format described by pixdesc. - * - * The pixel step is the distance in bytes between the first byte of - * the group of bytes which describe a pixel component and the first - * byte of the successive group in the same plane for the same - * component. - * - * @param max_pixsteps an array which is filled with the max pixel step - * for each plane. Since a plane may contain different pixel - * components, the computed max_pixsteps[plane] is relative to the - * component in the plane with the max pixel step. - * @param max_pixstep_comps an array which is filled with the component - * for each plane which has the max pixel step. May be NULL. - */ -void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4], - const AVPixFmtDescriptor *pixdesc); - -/** - * Compute the size of an image line with format pix_fmt and width - * width for the plane plane. - * - * @return the computed size in bytes - */ -int av_image_get_linesize(enum AVPixelFormat pix_fmt, int width, int plane); - -/** - * Fill plane linesizes for an image with pixel format pix_fmt and - * width width. - * - * @param linesizes array to be filled with the linesize for each plane - * @return >= 0 in case of success, a negative error code otherwise - */ -int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width); - -/** - * Fill plane data pointers for an image with pixel format pix_fmt and - * height height. - * - * @param data pointers array to be filled with the pointer for each image plane - * @param ptr the pointer to a buffer which will contain the image - * @param linesizes the array containing the linesize for each - * plane, should be filled by av_image_fill_linesizes() - * @return the size in bytes required for the image buffer, a negative - * error code in case of failure - */ -int av_image_fill_pointers(uint8_t *data[4], enum AVPixelFormat pix_fmt, int height, - uint8_t *ptr, const int linesizes[4]); - -/** - * Allocate an image with size w and h and pixel format pix_fmt, and - * fill pointers and linesizes accordingly. - * The allocated image buffer has to be freed by using - * av_freep(&pointers[0]). - * - * @param align the value to use for buffer size alignment - * @return the size in bytes required for the image buffer, a negative - * error code in case of failure - */ -int av_image_alloc(uint8_t *pointers[4], int linesizes[4], - int w, int h, enum AVPixelFormat pix_fmt, int align); - -/** - * Copy image plane from src to dst. - * That is, copy "height" number of lines of "bytewidth" bytes each. - * The first byte of each successive line is separated by *_linesize - * bytes. - * - * bytewidth must be contained by both absolute values of dst_linesize - * and src_linesize, otherwise the function behavior is undefined. - * - * @param dst_linesize linesize for the image plane in dst - * @param src_linesize linesize for the image plane in src - */ -void av_image_copy_plane(uint8_t *dst, int dst_linesize, - const uint8_t *src, int src_linesize, - int bytewidth, int height); - -/** - * Copy image in src_data to dst_data. - * - * @param dst_linesizes linesizes for the image in dst_data - * @param src_linesizes linesizes for the image in src_data - */ -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); - -/** - * Setup the data pointers and linesizes based on the specified image - * parameters and the provided array. - * - * The fields of the given image are filled in by using the src - * address which points to the image data buffer. Depending on the - * specified pixel format, one or multiple image data pointers and - * line sizes will be set. If a planar format is specified, several - * pointers will be set pointing to the different picture planes and - * the line sizes of the different planes will be stored in the - * lines_sizes array. Call with src == NULL to get the required - * size for the src buffer. - * - * To allocate the buffer and fill in the dst_data and dst_linesize in - * one call, use av_image_alloc(). - * - * @param dst_data data pointers to be filled in - * @param dst_linesizes linesizes for the image in dst_data to be filled in - * @param src buffer which will contain or contains the actual image data, can be NULL - * @param pix_fmt the pixel format of the image - * @param width the width of the image in pixels - * @param height the height of the image in pixels - * @param align the value used in src for linesize alignment - * @return the size in bytes required for src, a negative error code - * in case of failure - */ -int av_image_fill_arrays(uint8_t *dst_data[4], int dst_linesize[4], - const uint8_t *src, - enum AVPixelFormat pix_fmt, int width, int height, int align); - -/** - * Return the size in bytes of the amount of data required to store an - * image with the given parameters. - * - * @param[in] align the assumed linesize alignment - */ -int av_image_get_buffer_size(enum AVPixelFormat pix_fmt, int width, int height, int align); - -/** - * Copy image data from an image into a buffer. - * - * av_image_get_buffer_size() can be used to compute the required size - * for the buffer to fill. - * - * @param dst a buffer into which picture data will be copied - * @param dst_size the size in bytes of dst - * @param src_data pointers containing the source image data - * @param src_linesizes linesizes for the image in src_data - * @param pix_fmt the pixel format of the source image - * @param width the width of the source image in pixels - * @param height the height of the source image in pixels - * @param align the assumed linesize alignment for dst - * @return the number of bytes written to dst, or a negative value - * (error code) on error - */ -int av_image_copy_to_buffer(uint8_t *dst, int dst_size, - const uint8_t * const src_data[4], const int src_linesize[4], - enum AVPixelFormat pix_fmt, int width, int height, int align); - -/** - * Check if the given dimension of an image is valid, meaning that all - * bytes of the image can be addressed with a signed int. - * - * @param w the width of the picture - * @param h the height of the picture - * @param log_offset the offset to sum to the log level for logging with log_ctx - * @param log_ctx the parent logging context, it may be NULL - * @return >= 0 if valid, a negative error code otherwise - */ -int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx); - -/** - * Check if the given sample aspect ratio of an image is valid. - * - * It is considered invalid if the denominator is 0 or if applying the ratio - * to the image size would make the smaller dimension less than 1. If the - * sar numerator is 0, it is considered unknown and will return as valid. - * - * @param w width of the image - * @param h height of the image - * @param sar sample aspect ratio of the image - * @return 0 if valid, a negative AVERROR code otherwise - */ -int av_image_check_sar(unsigned int w, unsigned int h, AVRational sar); - -/** - * @} - */ - - -#endif /* AVUTIL_IMGUTILS_H */ |