diff options
Diffstat (limited to 'vpx/vpx_image.h')
| -rw-r--r-- | vpx/vpx_image.h | 318 |
1 files changed, 159 insertions, 159 deletions
diff --git a/vpx/vpx_image.h b/vpx/vpx_image.h index 3e424470f..c304bacd0 100644 --- a/vpx/vpx_image.h +++ b/vpx/vpx_image.h @@ -20,14 +20,14 @@ extern "C" { #ifndef VPX_IMAGE_H #define VPX_IMAGE_H - /*!\brief Current ABI version number - * - * \internal - * If this file is altered in any way that changes the ABI, this value - * must be bumped. Examples include, but are not limited to, changing - * types, removing or reassigning enums, adding/removing/rearranging - * fields to structures - */ + /*!\brief Current ABI version number + * + * \internal + * If this file is altered in any way that changes the ABI, this value + * must be bumped. Examples include, but are not limited to, changing + * types, removing or reassigning enums, adding/removing/rearranging + * fields to structures + */ #define VPX_IMAGE_ABI_VERSION (1) /**<\hideinitializer*/ @@ -36,41 +36,43 @@ extern "C" { #define VPX_IMG_FMT_HAS_ALPHA 0x400 /**< Image has an alpha channel component */ - /*!\brief List of supported image formats */ - typedef enum vpx_img_fmt { - VPX_IMG_FMT_NONE, - VPX_IMG_FMT_RGB24, /**< 24 bit per pixel packed RGB */ - VPX_IMG_FMT_RGB32, /**< 32 bit per pixel packed 0RGB */ - VPX_IMG_FMT_RGB565, /**< 16 bit per pixel, 565 */ - VPX_IMG_FMT_RGB555, /**< 16 bit per pixel, 555 */ - VPX_IMG_FMT_UYVY, /**< UYVY packed YUV */ - VPX_IMG_FMT_YUY2, /**< YUYV packed YUV */ - VPX_IMG_FMT_YVYU, /**< YVYU packed YUV */ - VPX_IMG_FMT_BGR24, /**< 24 bit per pixel packed BGR */ - VPX_IMG_FMT_RGB32_LE, /**< 32 bit packed BGR0 */ - VPX_IMG_FMT_ARGB, /**< 32 bit packed ARGB, alpha=255 */ - VPX_IMG_FMT_ARGB_LE, /**< 32 bit packed BGRA, alpha=255 */ - VPX_IMG_FMT_RGB565_LE, /**< 16 bit per pixel, gggbbbbb rrrrrggg */ - VPX_IMG_FMT_RGB555_LE, /**< 16 bit per pixel, gggbbbbb 0rrrrrgg */ - VPX_IMG_FMT_YV12 = VPX_IMG_FMT_PLANAR | VPX_IMG_FMT_UV_FLIP | 1, /**< planar YVU */ - VPX_IMG_FMT_I420 = VPX_IMG_FMT_PLANAR | 2, - VPX_IMG_FMT_VPXYV12 = VPX_IMG_FMT_PLANAR | VPX_IMG_FMT_UV_FLIP | 3, /** < planar 4:2:0 format with vpx color space */ - VPX_IMG_FMT_VPXI420 = VPX_IMG_FMT_PLANAR | 4 /** < planar 4:2:0 format with vpx color space */ - } - vpx_img_fmt_t; /**< alias for enum vpx_img_fmt */ + /*!\brief List of supported image formats */ + typedef enum vpx_img_fmt { + VPX_IMG_FMT_NONE, + VPX_IMG_FMT_RGB24, /**< 24 bit per pixel packed RGB */ + VPX_IMG_FMT_RGB32, /**< 32 bit per pixel packed 0RGB */ + VPX_IMG_FMT_RGB565, /**< 16 bit per pixel, 565 */ + VPX_IMG_FMT_RGB555, /**< 16 bit per pixel, 555 */ + VPX_IMG_FMT_UYVY, /**< UYVY packed YUV */ + VPX_IMG_FMT_YUY2, /**< YUYV packed YUV */ + VPX_IMG_FMT_YVYU, /**< YVYU packed YUV */ + VPX_IMG_FMT_BGR24, /**< 24 bit per pixel packed BGR */ + VPX_IMG_FMT_RGB32_LE, /**< 32 bit packed BGR0 */ + VPX_IMG_FMT_ARGB, /**< 32 bit packed ARGB, alpha=255 */ + VPX_IMG_FMT_ARGB_LE, /**< 32 bit packed BGRA, alpha=255 */ + VPX_IMG_FMT_RGB565_LE, /**< 16 bit per pixel, gggbbbbb rrrrrggg */ + VPX_IMG_FMT_RGB555_LE, /**< 16 bit per pixel, gggbbbbb 0rrrrrgg */ + VPX_IMG_FMT_YV12 = VPX_IMG_FMT_PLANAR | VPX_IMG_FMT_UV_FLIP | 1, /**< planar YVU */ + VPX_IMG_FMT_I420 = VPX_IMG_FMT_PLANAR | 2, + VPX_IMG_FMT_VPXYV12 = VPX_IMG_FMT_PLANAR | VPX_IMG_FMT_UV_FLIP | 3, /** < planar 4:2:0 format with vpx color space */ + VPX_IMG_FMT_VPXI420 = VPX_IMG_FMT_PLANAR | 4, + VPX_IMG_FMT_I422 = VPX_IMG_FMT_PLANAR | 5, + VPX_IMG_FMT_I444 = VPX_IMG_FMT_PLANAR | 6, + VPX_IMG_FMT_444A = VPX_IMG_FMT_PLANAR | VPX_IMG_FMT_HAS_ALPHA | 7 + } vpx_img_fmt_t; /**< alias for enum vpx_img_fmt */ #if !defined(VPX_CODEC_DISABLE_COMPAT) || !VPX_CODEC_DISABLE_COMPAT #define IMG_FMT_PLANAR VPX_IMG_FMT_PLANAR /**< \deprecated Use #VPX_IMG_FMT_PLANAR */ #define IMG_FMT_UV_FLIP VPX_IMG_FMT_UV_FLIP /**< \deprecated Use #VPX_IMG_FMT_UV_FLIP */ #define IMG_FMT_HAS_ALPHA VPX_IMG_FMT_HAS_ALPHA /**< \deprecated Use #VPX_IMG_FMT_HAS_ALPHA */ - /*!\brief Deprecated list of supported image formats - * \deprecated New code should use #vpx_img_fmt - */ + /*!\brief Deprecated list of supported image formats + * \deprecated New code should use #vpx_img_fmt + */ #define img_fmt vpx_img_fmt - /*!\brief alias for enum img_fmt. - * \deprecated New code should use #vpx_img_fmt_t - */ + /*!\brief alias for enum img_fmt. + * \deprecated New code should use #vpx_img_fmt_t + */ #define img_fmt_t vpx_img_fmt_t #define IMG_FMT_NONE VPX_IMG_FMT_NONE /**< \deprecated Use #VPX_IMG_FMT_NONE */ @@ -93,24 +95,23 @@ extern "C" { #define IMG_FMT_VPXI420 VPX_IMG_FMT_VPXI420 /**< \deprecated Use #VPX_IMG_FMT_VPXI420 */ #endif /* VPX_CODEC_DISABLE_COMPAT */ - /**\brief Image Descriptor */ - typedef struct vpx_image - { - vpx_img_fmt_t fmt; /**< Image Format */ + /**\brief Image Descriptor */ + typedef struct vpx_image { + vpx_img_fmt_t fmt; /**< Image Format */ - /* Image storage dimensions */ - unsigned int w; /**< Stored image width */ - unsigned int h; /**< Stored image height */ + /* Image storage dimensions */ + unsigned int w; /**< Stored image width */ + unsigned int h; /**< Stored image height */ - /* Image display dimensions */ - unsigned int d_w; /**< Displayed image width */ - unsigned int d_h; /**< Displayed image height */ + /* Image display dimensions */ + unsigned int d_w; /**< Displayed image width */ + unsigned int d_h; /**< Displayed image height */ - /* Chroma subsampling info */ - unsigned int x_chroma_shift; /**< subsampling order, X */ - unsigned int y_chroma_shift; /**< subsampling order, Y */ + /* Chroma subsampling info */ + unsigned int x_chroma_shift; /**< subsampling order, X */ + unsigned int y_chroma_shift; /**< subsampling order, Y */ - /* Image data pointers. */ + /* Image data pointers. */ #define VPX_PLANE_PACKED 0 /**< To be used for all packed formats */ #define VPX_PLANE_Y 0 /**< Y (Luminance) plane */ #define VPX_PLANE_U 1 /**< U (Chroma) plane */ @@ -123,119 +124,118 @@ extern "C" { #define PLANE_V VPX_PLANE_V #define PLANE_ALPHA VPX_PLANE_ALPHA #endif - unsigned char *planes[4]; /**< pointer to the top left pixel for each plane */ - int stride[4]; /**< stride between rows for each plane */ + unsigned char *planes[4]; /**< pointer to the top left pixel for each plane */ + int stride[4]; /**< stride between rows for each plane */ - int bps; /**< bits per sample (for packed formats) */ - - /* The following member may be set by the application to associate data - * with this image. - */ - void *user_priv; /**< may be set by the application to associate data - * with this image. */ + int bps; /**< bits per sample (for packed formats) */ - /* The following members should be treated as private. */ - unsigned char *img_data; /**< private */ - int img_data_owner; /**< private */ - int self_allocd; /**< private */ - } vpx_image_t; /**< alias for struct vpx_image */ - - /**\brief Representation of a rectangle on a surface */ - typedef struct vpx_image_rect - { - unsigned int x; /**< leftmost column */ - unsigned int y; /**< topmost row */ - unsigned int w; /**< width */ - unsigned int h; /**< height */ - } vpx_image_rect_t; /**< alias for struct vpx_image_rect */ - - /*!\brief Open a descriptor, allocating storage for the underlying image - * - * Returns a descriptor for storing an image of the given format. The - * storage for the descriptor is allocated on the heap. - * - * \param[in] img Pointer to storage for descriptor. If this parameter - * is NULL, the storage for the descriptor will be - * allocated on the heap. - * \param[in] fmt Format for the image - * \param[in] d_w Width of the image - * \param[in] d_h Height of the image - * \param[in] align Alignment, in bytes, of the image buffer and - * each row in the image(stride). - * - * \return Returns a pointer to the initialized image descriptor. If the img - * parameter is non-null, the value of the img parameter will be - * returned. + /* The following member may be set by the application to associate data + * with this image. */ - vpx_image_t *vpx_img_alloc(vpx_image_t *img, - vpx_img_fmt_t fmt, - unsigned int d_w, - unsigned int d_h, - unsigned int align); - - /*!\brief Open a descriptor, using existing storage for the underlying image - * - * Returns a descriptor for storing an image of the given format. The - * storage for descriptor has been allocated elsewhere, and a descriptor is - * desired to "wrap" that storage. - * - * \param[in] img Pointer to storage for descriptor. If this parameter - * is NULL, the storage for the descriptor will be - * allocated on the heap. - * \param[in] fmt Format for the image - * \param[in] d_w Width of the image - * \param[in] d_h Height of the image - * \param[in] align Alignment, in bytes, of each row in the image. - * \param[in] img_data Storage to use for the image - * - * \return Returns a pointer to the initialized image descriptor. If the img - * parameter is non-null, the value of the img parameter will be - * returned. - */ - vpx_image_t *vpx_img_wrap(vpx_image_t *img, - vpx_img_fmt_t fmt, - unsigned int d_w, - unsigned int d_h, - unsigned int align, - unsigned char *img_data); - - - /*!\brief Set the rectangle identifying the displayed portion of the image - * - * Updates the displayed rectangle (aka viewport) on the image surface to - * match the specified coordinates and size. - * - * \param[in] img Image descriptor - * \param[in] x leftmost column - * \param[in] y topmost row - * \param[in] w width - * \param[in] h height - * - * \return 0 if the requested rectangle is valid, nonzero otherwise. - */ - int vpx_img_set_rect(vpx_image_t *img, - unsigned int x, - unsigned int y, - unsigned int w, - unsigned int h); - - - /*!\brief Flip the image vertically (top for bottom) - * - * Adjusts the image descriptor's pointers and strides to make the image - * be referenced upside-down. - * - * \param[in] img Image descriptor - */ - void vpx_img_flip(vpx_image_t *img); + void *user_priv; /**< may be set by the application to associate data + * with this image. */ - /*!\brief Close an image descriptor - * - * Frees all allocated storage associated with an image descriptor. - * - * \param[in] img Image descriptor - */ - void vpx_img_free(vpx_image_t *img); + /* The following members should be treated as private. */ + unsigned char *img_data; /**< private */ + int img_data_owner; /**< private */ + int self_allocd; /**< private */ + } vpx_image_t; /**< alias for struct vpx_image */ + + /**\brief Representation of a rectangle on a surface */ + typedef struct vpx_image_rect { + unsigned int x; /**< leftmost column */ + unsigned int y; /**< topmost row */ + unsigned int w; /**< width */ + unsigned int h; /**< height */ + } vpx_image_rect_t; /**< alias for struct vpx_image_rect */ + + /*!\brief Open a descriptor, allocating storage for the underlying image + * + * Returns a descriptor for storing an image of the given format. The + * storage for the descriptor is allocated on the heap. + * + * \param[in] img Pointer to storage for descriptor. If this parameter + * is NULL, the storage for the descriptor will be + * allocated on the heap. + * \param[in] fmt Format for the image + * \param[in] d_w Width of the image + * \param[in] d_h Height of the image + * \param[in] align Alignment, in bytes, of the image buffer and + * each row in the image(stride). + * + * \return Returns a pointer to the initialized image descriptor. If the img + * parameter is non-null, the value of the img parameter will be + * returned. + */ + vpx_image_t *vpx_img_alloc(vpx_image_t *img, + vpx_img_fmt_t fmt, + unsigned int d_w, + unsigned int d_h, + unsigned int align); + + /*!\brief Open a descriptor, using existing storage for the underlying image + * + * Returns a descriptor for storing an image of the given format. The + * storage for descriptor has been allocated elsewhere, and a descriptor is + * desired to "wrap" that storage. + * + * \param[in] img Pointer to storage for descriptor. If this parameter + * is NULL, the storage for the descriptor will be + * allocated on the heap. + * \param[in] fmt Format for the image + * \param[in] d_w Width of the image + * \param[in] d_h Height of the image + * \param[in] align Alignment, in bytes, of each row in the image. + * \param[in] img_data Storage to use for the image + * + * \return Returns a pointer to the initialized image descriptor. If the img + * parameter is non-null, the value of the img parameter will be + * returned. + */ + vpx_image_t *vpx_img_wrap(vpx_image_t *img, + vpx_img_fmt_t fmt, + unsigned int d_w, + unsigned int d_h, + unsigned int align, + unsigned char *img_data); + + + /*!\brief Set the rectangle identifying the displayed portion of the image + * + * Updates the displayed rectangle (aka viewport) on the image surface to + * match the specified coordinates and size. + * + * \param[in] img Image descriptor + * \param[in] x leftmost column + * \param[in] y topmost row + * \param[in] w width + * \param[in] h height + * + * \return 0 if the requested rectangle is valid, nonzero otherwise. + */ + int vpx_img_set_rect(vpx_image_t *img, + unsigned int x, + unsigned int y, + unsigned int w, + unsigned int h); + + + /*!\brief Flip the image vertically (top for bottom) + * + * Adjusts the image descriptor's pointers and strides to make the image + * be referenced upside-down. + * + * \param[in] img Image descriptor + */ + void vpx_img_flip(vpx_image_t *img); + + /*!\brief Close an image descriptor + * + * Frees all allocated storage associated with an image descriptor. + * + * \param[in] img Image descriptor + */ + void vpx_img_free(vpx_image_t *img); #endif #ifdef __cplusplus |