62 cols << 4, rows << 4);
85 for (comp=0; comp<2; comp++) {
93 delta = di | (delta << 2);
94 delta = (delta ^ -sign) + sign;
109 for (comp=0; comp<2; comp++) {
120 for (comp=0; comp<2; comp++)
121 for (node=0; node<7; node++)
135 memset(def_prob, 0x80,
sizeof(def_prob));
137 for (pt=0; pt<2; pt++)
138 for (node=0; node<11; node++)
146 for (ct=0; ct<3; ct++)
147 for (pt=0; pt<2; pt++)
148 for (cg=0; cg<6; cg++)
149 for (node=0; node<11; node++)
158 for (pt=0; pt<2; pt++)
159 for (ctx=0; ctx<36; ctx++)
160 for (node=0; node<5; node++)
164 for (ct=0; ct<3; ct++)
165 for (pt=0; pt<2; pt++)
166 for (cg=0; cg<3; cg++)
167 for (ctx=0; ctx<6; ctx++)
168 for (node=0; node<5; node++)
179 int coeff, sign, coeff_idx;
180 int b, i, cg, idx, ctx, ctx_last;
183 for (b=0; b<6; b++) {
221 coeff = (coeff ^ -sign) + sign;
238 model2 = cg > 2 ? model1 : model->
coeff_acct[
pt][ct][cg][ctx];
243 if (coeff_idx < ctx_last)
244 for (i=coeff_idx; i<=ctx_last; i++)
255 for (i=0; i<2; i++) {
av_cold int ff_vp56_free(AVCodecContext *avctx)
uint8_t coeff_ract[2][3][6][11]
VP5 and VP6 compatible video decoder (common features)
int coded_width
Bitstream width / height, may be different from width/height.
static av_cold int vp5_decode_init(AVCodecContext *avctx)
const uint8_t ff_vp56_coeff_bias[]
uint8_t coeff_dccv[2][11]
uint8_t mb_types_stats[3][10][2]
VP56ParseCoeffModels parse_coeff_models
void avcodec_set_dimensions(AVCodecContext *s, int width, int height)
static const uint8_t vp5_coord_div[]
static int vp5_parse_coeff_models(VP56Context *s)
VP5 compatible video decoder.
static void vp5_parse_vector_adjustment(VP56Context *s, VP56mv *vect)
struct vp56_context VP56Context
static const uint8_t vp5_ract_pct[3][2][6][11]
static int decode(MimicContext *ctx, int quality, int num_coeffs, int is_iframe)
VP56ParseCoeff parse_coeff
bitstream reader API header.
static av_always_inline int vp56_rac_get_tree(VP56RangeCoder *c, const VP56Tree *tree, const uint8_t *probs)
static int init(AVCodecParserContext *s)
VP56ParseVectorAdjustment parse_vector_adjustment
static const uint8_t vp5_dccv_pct[2][11]
static void vp5_parse_vector_models(VP56Context *s)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static av_always_inline int vp56_rac_get(VP56RangeCoder *c)
void av_log(void *avcl, int level, const char *fmt,...)
const char * name
Name of the codec implementation.
void ff_vp56_init_dequant(VP56Context *s, int quantizer)
DCTELEM block_coeff[6][64]
VP56Macroblock * macroblocks
const uint8_t ff_vp56_b6to4[]
VP56ParseVectorModels parse_vector_models
const uint8_t * vp56_coord_div
VP5 and VP6 compatible video decoder (common data)
static av_unused int vp56_rac_gets_nn(VP56RangeCoder *c, int bits)
static const int16_t vp5_ract_lc[3][3][5][6][2]
uint8_t coeff_ctx_last[4]
int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
const uint8_t ff_vp56_coeff_bit_length[]
VP56DefaultModelsInit default_models_init
#define vp56_rac_get_prob
static int vp5_parse_header(VP56Context *s, const uint8_t *buf, int buf_size, int *golden_frame)
static const int16_t vp5_dccv_lc[5][36][2]
const VP56Tree ff_vp56_pc_tree[]
main external API structure.
static void close(AVCodecParserContext *s)
const uint8_t ff_vp56_coeff_parse_table[6][11]
uint8_t coeff_dcct[2][36][5]
VP56ParseHeader parse_header
void ff_vp56_init_range_decoder(VP56RangeCoder *c, const uint8_t *buf, int buf_size)
uint8_t coeff_acct[2][3][3][6][5]
av_cold void ff_vp56_init(AVCodecContext *avctx, int flip, int has_alpha)
static const uint8_t vp5_vmc_pct[2][11]
const VP56Tree ff_vp56_pva_tree[]
static void vp5_parse_coeff(VP56Context *s)
static void vp5_default_models_init(VP56Context *s)
#define AVERROR_INVALIDDATA
#define AVERROR_PATCHWELCOME
static av_unused int vp56_rac_gets(VP56RangeCoder *c, int bits)
int key_frame
1 -> keyframe, 0-> not
static void permute(DCTELEM dst[64], const DCTELEM src[64], int perm)
static void comp(unsigned char *dst, int dst_stride, unsigned char *src, int src_stride, int add)
static const uint8_t vp5_coeff_groups[]
const uint8_t ff_vp56_def_mb_types_stats[3][10][2]