23 #ifndef AVCODEC_FFV1_H 24 #define AVCODEC_FFV1_H 44 #ifdef __INTEL_COMPILER 50 #define CONTEXT_SIZE 32 52 #define MAX_QUANT_TABLES 8 53 #define MAX_CONTEXT_INPUTS 5 55 #define AC_GOLOMB_RICE 0 56 #define AC_RANGE_DEFAULT_TAB 1 57 #define AC_RANGE_CUSTOM_TAB 2 58 #define AC_RANGE_DEFAULT_TAB_FORCE -2 76 #define MAX_SLICES 1024 84 uint64_t rc_stat[256][2];
175 if (drift <= -count) {
178 drift =
FFMAX(drift + count, -count + 1);
179 }
else if (drift > 0) {
182 drift =
FFMIN(drift - count, 0);
190 #define RENAME(name) name 196 #define RENAME(name) name ## 32 static av_always_inline int fold(int diff, int bits)
This structure describes decoded (raw) audio or video data.
int ff_ffv1_init_slice_contexts(FFV1Context *f)
#define MAX_CONTEXT_INPUTS
enum AVPictureType last_picture
#define fs(width, name, subs,...)
Multithreading support functions.
uint8_t(*[MAX_QUANT_TABLES] initial_states)[32]
Public header for CRC hash function implementation.
int ff_ffv1_allocate_initial_states(FFV1Context *f)
bitstream reader API header.
int16_t quant_tables[MAX_QUANT_TABLES][MAX_CONTEXT_INPUTS][256]
static const int16_t quant_table[64]
simple assert() macros that are a bit more flexible than ISO C assert().
int ac
1=range coder <-> 0=golomb rice
int ff_ffv1_init_slices_state(FFV1Context *f)
int ff_ffv1_close(AVCodecContext *avctx)
uint8_t state_transition[256]
static void update_vlc_state(VlcState *const state, const int v)
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
int ac_byte_count
number of bytes used for AC coding
int context_count[MAX_QUANT_TABLES]
Libavcodec external API header.
main external API structure.
Describe the class of an AVClass context structure.
int32_t * sample_buffer32
static av_const int sign_extend(int val, unsigned bits)
common internal api header.
PlaneContext plane[MAX_PLANES]
int ff_ffv1_init_slice_state(FFV1Context *f, FFV1Context *fs)
static av_always_inline int diff(const uint32_t a, const uint32_t b)
struct FFV1Context * fsrc
struct FFV1Context * slice_context[MAX_SLICES]
int ff_ffv1_common_init(AVCodecContext *avctx)
void ff_ffv1_clear_slice_state(FFV1Context *f, FFV1Context *fs)