diff options
Diffstat (limited to 'include/webp/format_constants.h')
| -rw-r--r-- | include/webp/format_constants.h | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/include/webp/format_constants.h b/include/webp/format_constants.h index 2ac8fe67..7ce498f6 100644 --- a/include/webp/format_constants.h +++ b/include/webp/format_constants.h @@ -65,29 +65,23 @@ typedef enum { #define CHUNK_SIZE_BYTES 4 // Size needed to store chunk's size. #define CHUNK_HEADER_SIZE 8 // Size of a chunk header. #define RIFF_HEADER_SIZE 12 // Size of the RIFF header ("RIFFnnnnWEBP"). -#define ANMF_CHUNK_SIZE 16 // Size of an ANMF chunk. -#define ANIM_CHUNK_SIZE 6 // Size of an ANIM chunk. -#define FRGM_CHUNK_SIZE 6 // Size of a FRGM chunk. +#define FRAME_CHUNK_SIZE 15 // Size of a FRM chunk. +#define LOOP_CHUNK_SIZE 2 // Size of a LOOP chunk. +#define TILE_CHUNK_SIZE 6 // Size of a TILE chunk. #define VP8X_CHUNK_SIZE 10 // Size of a VP8X chunk. -// VP8X Feature Flags. -#if !(defined(__cplusplus) || defined(c_plusplus)) -typedef enum WebPFeatureFlags WebPFeatureFlags; -#endif -enum WebPFeatureFlags { - FRAGMENTS_FLAG = 0x00000001, - ANIMATION_FLAG = 0x00000002, - XMP_FLAG = 0x00000004, - EXIF_FLAG = 0x00000008, - ALPHA_FLAG = 0x00000010, - ICCP_FLAG = 0x00000020 -}; +#define TILING_FLAG_BIT 0x01 // Set if tiles are possibly used. +#define ANIMATION_FLAG_BIT 0x02 // Set if some animation is expected +#define ICC_FLAG_BIT 0x04 // Whether ICC is present or not. +#define METADATA_FLAG_BIT 0x08 // Set if some META chunk is possibly present. +#define ALPHA_FLAG_BIT 0x10 // Should be same as the ALPHA_FLAG in mux.h +#define ROTATION_FLAG_BITS 0xe0 // all 3 bits for rotation + symmetry #define MAX_CANVAS_SIZE (1 << 24) // 24-bit max for VP8X width/height. #define MAX_IMAGE_AREA (1ULL << 32) // 32-bit max for width x height. #define MAX_LOOP_COUNT (1 << 16) // maximum value for loop-count #define MAX_DURATION (1 << 24) // maximum duration -#define MAX_POSITION_OFFSET (1 << 24) // maximum frame/fragment x/y offset +#define MAX_POSITION_OFFSET (1 << 24) // maximum frame/tile x/y offset // Maximum chunk payload is such that adding the header and padding won't // overflow a uint32_t. |