FFmpeg: SnowContext Struct Reference

FFmpeg 4.0

#include <libavcodec/snow.h>

Data Fields
AVClass *	class

AVCodecContext *	avctx

RangeCoder	c

MECmpContext	mecc

HpelDSPContext	hdsp

QpelDSPContext	qdsp

VideoDSPContext	vdsp

H264QpelContext	h264qpel

MpegvideoEncDSPContext	mpvencdsp

SnowDWTContext	dwt

AVFrame *	input_picture
	new_picture with the internal linesizes More...

AVFrame *	current_picture

AVFrame *	last_picture [MAX_REF_FRAMES]

uint8_t *	halfpel_plane [MAX_REF_FRAMES][4][4]

AVFrame *	mconly_picture

uint8_t	header_state [32]

uint8_t	block_state [128+32 *128]

int	keyframe

int	always_reset

int	version

int	spatial_decomposition_type

int	last_spatial_decomposition_type

int	temporal_decomposition_type

int	spatial_decomposition_count

int	last_spatial_decomposition_count

int	temporal_decomposition_count

int	max_ref_frames

int	ref_frames

int16_t(*[MAX_REF_FRAMES]	ref_mvs )[2]

uint32_t *	ref_scores [MAX_REF_FRAMES]

DWTELEM *	spatial_dwt_buffer

DWTELEM *	temp_dwt_buffer

IDWTELEM *	spatial_idwt_buffer

IDWTELEM *	temp_idwt_buffer

int *	run_buffer

int	colorspace_type

int	chroma_h_shift

int	chroma_v_shift

int	spatial_scalability

int	qlog

int	last_qlog

int	lambda

int	lambda2

int	pass1_rc

int	mv_scale

int	last_mv_scale

int	qbias

int	last_qbias

int	b_width

int	b_height

int	block_max_depth

int	last_block_max_depth

int	nb_planes

Plane	plane [MAX_PLANES]

BlockNode *	block

unsigned	me_cache [ME_CACHE_SIZE]

unsigned	me_cache_generation

slice_buffer	sb

int	memc_only

int	no_bitstream

int	intra_penalty

int	motion_est

int	iterative_dia_size

int	scenechange_threshold

MpegEncContext	m

uint8_t *	scratchbuf

uint8_t *	emu_edge_buffer

AVMotionVector *	avmv

int	avmv_index

uint64_t	encoding_error [AV_NUM_DATA_POINTERS]

int	pred

Detailed Description

Definition at line 114 of file snow.h.

Field Documentation

◆ class

AVClass* SnowContext::class

Definition at line 115 of file snow.h.

◆ avctx

AVCodecContext* SnowContext::avctx

◆ c

RangeCoder SnowContext::c

Definition at line 117 of file snow.h.

Referenced by decode_blocks(), decode_frame(), decode_header(), decode_q_branch(), decode_qlogs(), encode_blocks(), encode_frame(), encode_header(), encode_q_branch(), encode_q_branch2(), encode_qlogs(), encode_subband_c0run(), iterative_me(), and unpack_coeffs().

◆ mecc

MECmpContext SnowContext::mecc

Definition at line 118 of file snow.h.

Referenced by encode_frame(), encode_init(), get_4block_rd(), get_block_rd(), and mca().

◆ hdsp

HpelDSPContext SnowContext::hdsp

Definition at line 119 of file snow.h.

Referenced by encode_frame(), and mca().

◆ qdsp

QpelDSPContext SnowContext::qdsp

Definition at line 120 of file snow.h.

Referenced by encode_frame().

◆ vdsp

VideoDSPContext SnowContext::vdsp

Definition at line 121 of file snow.h.

Referenced by ff_snow_pred_block(), and mca().

◆ h264qpel

H264QpelContext SnowContext::h264qpel

Definition at line 122 of file snow.h.

Referenced by ff_snow_pred_block(), and mca().

◆ mpvencdsp

MpegvideoEncDSPContext SnowContext::mpvencdsp

Definition at line 123 of file snow.h.

Referenced by encode_frame(), and encode_init().

◆ dwt

SnowDWTContext SnowContext::dwt

Definition at line 124 of file snow.h.

Referenced by add_yblock(), decode_frame(), and mca().

◆ input_picture

AVFrame* SnowContext::input_picture

new_picture with the internal linesizes

Definition at line 125 of file snow.h.

Referenced by encode_end(), encode_frame(), encode_init(), and encode_q_branch().

◆ current_picture

AVFrame* SnowContext::current_picture

Definition at line 126 of file snow.h.

Referenced by decode_frame(), encode_frame(), encode_q_branch(), ff_snow_common_end(), ff_snow_frame_start(), ff_snow_release_buffer(), get_4block_rd(), get_block_rd(), get_dc(), iterative_me(), mca(), predict_slice(), and predict_slice_buffered().

◆ last_picture

AVFrame* SnowContext::last_picture[MAX_REF_FRAMES]

Definition at line 127 of file snow.h.

Referenced by encode_frame(), encode_q_branch(), ff_snow_common_end(), ff_snow_frame_start(), ff_snow_pred_block(), ff_snow_release_buffer(), and mca().

◆ halfpel_plane

uint8_t* SnowContext::halfpel_plane[MAX_REF_FRAMES][4][4]

Definition at line 128 of file snow.h.

Referenced by ff_snow_frame_start(), and ff_snow_release_buffer().

◆ mconly_picture

AVFrame* SnowContext::mconly_picture

Definition at line 129 of file snow.h.

Referenced by decode_frame(), ff_snow_common_end(), ff_snow_common_init_after_header(), and mca().

◆ header_state

uint8_t SnowContext::header_state[32]

Definition at line 131 of file snow.h.

Referenced by decode_header(), decode_qlogs(), encode_frame(), encode_header(), encode_qlogs(), and ff_snow_reset_contexts().

◆ block_state

uint8_t SnowContext::block_state[128+32 *128]

Definition at line 132 of file snow.h.

Referenced by decode_q_branch(), encode_frame(), encode_q_branch(), encode_q_branch2(), ff_snow_reset_contexts(), and iterative_me().

◆ keyframe

int SnowContext::keyframe

Definition at line 133 of file snow.h.

Referenced by decode_frame(), decode_header(), decode_q_branch(), encode_blocks(), encode_frame(), encode_header(), encode_q_branch(), encode_q_branch2(), ff_snow_frame_start(), predict_slice(), predict_slice_buffered(), and update_last_header_values().

◆ always_reset

int SnowContext::always_reset

Definition at line 134 of file snow.h.

Referenced by decode_header(), and encode_header().

◆ version

int SnowContext::version

Definition at line 135 of file snow.h.

Referenced by decode_header(), encode_header(), and encode_init().

◆ spatial_decomposition_type

int SnowContext::spatial_decomposition_type

Definition at line 136 of file snow.h.

Referenced by calculate_visual_weight(), decode_frame(), decode_header(), encode_frame(), encode_header(), encode_init(), main(), and update_last_header_values().

◆ last_spatial_decomposition_type

int SnowContext::last_spatial_decomposition_type

Definition at line 137 of file snow.h.

Referenced by encode_header(), and update_last_header_values().

◆ temporal_decomposition_type

int SnowContext::temporal_decomposition_type

Definition at line 138 of file snow.h.

Referenced by decode_header(), and encode_header().

◆ spatial_decomposition_count

int SnowContext::spatial_decomposition_count

Definition at line 139 of file snow.h.

Referenced by calculate_visual_weight(), decode_frame(), decode_header(), decode_qlogs(), encode_frame(), encode_header(), encode_qlogs(), ff_snow_common_init_after_header(), main(), mca(), ratecontrol_1pass(), and update_last_header_values().

◆ last_spatial_decomposition_count

int SnowContext::last_spatial_decomposition_count

Definition at line 140 of file snow.h.

Referenced by encode_frame(), encode_header(), and update_last_header_values().

◆ temporal_decomposition_count

int SnowContext::temporal_decomposition_count

Definition at line 141 of file snow.h.

Referenced by decode_header(), and encode_header().

◆ max_ref_frames

int SnowContext::max_ref_frames

Definition at line 142 of file snow.h.

Referenced by decode_header(), encode_header(), encode_init(), ff_snow_frame_start(), ff_snow_release_buffer(), and mca().

◆ ref_frames

int SnowContext::ref_frames

Definition at line 143 of file snow.h.

Referenced by decode_q_branch(), encode_q_branch(), encode_q_branch2(), ff_snow_frame_start(), iterative_me(), and pred_mv().

◆ ref_mvs

int16_t(*[MAX_REF_FRAMES] SnowContext::ref_mvs)[2]

Definition at line 144 of file snow.h.

Referenced by encode_init(), encode_q_branch(), ff_snow_common_end(), and iterative_me().

◆ ref_scores

uint32_t* SnowContext::ref_scores[MAX_REF_FRAMES]

Definition at line 145 of file snow.h.

Referenced by encode_init(), encode_q_branch(), ff_snow_common_end(), and iterative_me().

◆ spatial_dwt_buffer

DWTELEM* SnowContext::spatial_dwt_buffer

Definition at line 146 of file snow.h.

Referenced by decode_frame(), encode_frame(), ff_snow_common_end(), ff_snow_common_init_after_header(), and mca().

◆ temp_dwt_buffer

DWTELEM* SnowContext::temp_dwt_buffer

Definition at line 147 of file snow.h.

Referenced by encode_frame(), ff_snow_common_end(), main(), and mca().

◆ spatial_idwt_buffer

IDWTELEM* SnowContext::spatial_idwt_buffer

Definition at line 148 of file snow.h.

Referenced by calculate_visual_weight(), decode_frame(), decode_subband_slice_buffered(), encode_frame(), ff_snow_common_end(), ff_snow_common_init_after_header(), and mca().

◆ temp_idwt_buffer

IDWTELEM* SnowContext::temp_idwt_buffer

Definition at line 149 of file snow.h.

Referenced by calculate_visual_weight(), decode_frame(), encode_frame(), ff_snow_common_end(), main(), and mca().

◆ run_buffer

int* SnowContext::run_buffer

Definition at line 150 of file snow.h.

Referenced by encode_subband_c0run(), ff_snow_common_end(), and mca().

◆ colorspace_type

int SnowContext::colorspace_type

Definition at line 151 of file snow.h.

Referenced by decode_header(), encode_header(), and encode_init().

◆ chroma_h_shift

int SnowContext::chroma_h_shift

Definition at line 152 of file snow.h.

Referenced by decode_header(), encode_frame(), encode_header(), encode_init(), encode_q_branch(), ff_snow_common_init_after_header(), ff_snow_get_buffer(), ff_snow_pred_block(), get_4block_rd(), get_block_rd(), get_dc(), halfpel_interpol(), init_ref(), predict_slice(), and predict_slice_buffered().

◆ chroma_v_shift

int SnowContext::chroma_v_shift

Definition at line 153 of file snow.h.

Referenced by decode_frame(), decode_header(), encode_frame(), encode_header(), encode_init(), encode_q_branch(), ff_snow_common_init_after_header(), ff_snow_get_buffer(), ff_snow_pred_block(), get_4block_rd(), get_block_rd(), get_dc(), halfpel_interpol(), predict_slice(), and predict_slice_buffered().

◆ spatial_scalability

int SnowContext::spatial_scalability

Definition at line 154 of file snow.h.

Referenced by decode_header(), and encode_header().

◆ qlog

int SnowContext::qlog

Definition at line 155 of file snow.h.

Referenced by decode_frame(), decode_header(), decode_subband_slice_buffered(), dequantize(), dequantize_slice_buffered(), encode_frame(), encode_header(), quantize(), ratecontrol_1pass(), and update_last_header_values().

◆ last_qlog

int SnowContext::last_qlog

Definition at line 156 of file snow.h.

Referenced by encode_header(), and update_last_header_values().

◆ lambda

int SnowContext::lambda

Definition at line 157 of file snow.h.

Referenced by encode_frame(), encode_q_branch(), get_4block_rd(), get_block_rd(), and ratecontrol_1pass().

◆ lambda2

int SnowContext::lambda2

Definition at line 158 of file snow.h.

Referenced by encode_frame(), encode_q_branch(), get_4block_rd(), and get_block_rd().

◆ pass1_rc

int SnowContext::pass1_rc

Definition at line 159 of file snow.h.

Referenced by encode_frame(), and encode_init().

◆ mv_scale

int SnowContext::mv_scale

Definition at line 160 of file snow.h.

Referenced by decode_frame(), decode_header(), encode_header(), encode_init(), ff_snow_pred_block(), predict_slice_buffered(), and update_last_header_values().

◆ last_mv_scale

int SnowContext::last_mv_scale

Definition at line 161 of file snow.h.

Referenced by encode_header(), and update_last_header_values().

◆ qbias

int SnowContext::qbias

Definition at line 162 of file snow.h.

Referenced by decode_frame(), decode_header(), decode_subband_slice_buffered(), dequantize(), dequantize_slice_buffered(), encode_frame(), encode_header(), and update_last_header_values().

◆ last_qbias

int SnowContext::last_qbias

Definition at line 163 of file snow.h.

Referenced by encode_header(), and update_last_header_values().

◆ b_width

int SnowContext::b_width

Definition at line 165 of file snow.h.

Referenced by add_yblock(), check_4block_inter(), check_block(), decode_blocks(), decode_frame(), decode_q_branch(), encode_blocks(), encode_frame(), encode_init(), encode_q_branch(), encode_q_branch2(), ff_snow_alloc_blocks(), get_4block_rd(), get_block_bits(), get_block_rd(), get_dc(), iterative_me(), predict_slice(), predict_slice_buffered(), and set_blocks().

◆ b_height

int SnowContext::b_height

Definition at line 166 of file snow.h.

Referenced by add_yblock(), decode_blocks(), decode_frame(), encode_blocks(), encode_frame(), encode_init(), encode_q_branch(), ff_snow_alloc_blocks(), get_block_bits(), get_block_rd(), iterative_me(), predict_plane(), predict_slice(), and predict_slice_buffered().

◆ block_max_depth

int SnowContext::block_max_depth

Definition at line 167 of file snow.h.

Referenced by add_yblock(), check_4block_inter(), check_block(), decode_frame(), decode_header(), decode_q_branch(), encode_header(), encode_init(), encode_q_branch(), encode_q_branch2(), ff_snow_alloc_blocks(), get_4block_rd(), get_block_bits(), get_block_rd(), get_dc(), iterative_me(), predict_plane(), predict_slice(), predict_slice_buffered(), set_blocks(), and update_last_header_values().

◆ last_block_max_depth

int SnowContext::last_block_max_depth

Definition at line 168 of file snow.h.

Referenced by encode_header(), and update_last_header_values().

◆ nb_planes

int SnowContext::nb_planes

Definition at line 169 of file snow.h.

Referenced by decode_frame(), decode_header(), decode_q_branch(), decode_qlogs(), encode_frame(), encode_header(), encode_init(), encode_q_branch(), encode_q_branch2(), encode_qlogs(), ff_snow_common_init_after_header(), halfpel_interpol(), and iterative_me().

◆ plane

Plane SnowContext::plane[MAX_PLANES]

Definition at line 170 of file snow.h.

Referenced by decode_frame(), decode_header(), decode_qlogs(), encode_frame(), encode_header(), encode_init(), encode_qlogs(), ff_snow_common_end(), ff_snow_common_init_after_header(), ff_snow_pred_block(), ff_snow_reset_contexts(), get_4block_rd(), get_block_rd(), get_dc(), iterative_me(), predict_slice(), predict_slice_buffered(), ratecontrol_1pass(), and update_last_header_values().

◆ block

BlockNode* SnowContext::block

Definition at line 171 of file snow.h.

Referenced by add_yblock(), check_4block_inter(), check_block(), decode_q_branch(), encode_q_branch(), encode_q_branch2(), ff_snow_alloc_blocks(), ff_snow_common_end(), get_4block_rd(), get_block_bits(), get_block_rd(), get_dc(), iterative_me(), predict_slice_buffered(), and set_blocks().

◆ me_cache

unsigned SnowContext::me_cache[ME_CACHE_SIZE]

Definition at line 173 of file snow.h.

Referenced by check_4block_inter(), check_block(), and iterative_me().

◆ me_cache_generation

unsigned SnowContext::me_cache_generation

Definition at line 174 of file snow.h.

Referenced by check_4block_inter(), check_block(), and iterative_me().

◆ sb

slice_buffer SnowContext::sb

Definition at line 175 of file snow.h.

Referenced by decode_end(), and decode_frame().

◆ memc_only

int SnowContext::memc_only

Definition at line 176 of file snow.h.

Referenced by encode_frame().

◆ no_bitstream

int SnowContext::no_bitstream

Definition at line 177 of file snow.h.

Referenced by encode_frame().

◆ intra_penalty

int SnowContext::intra_penalty

Definition at line 178 of file snow.h.

Referenced by check_block().

◆ motion_est

int SnowContext::motion_est

Definition at line 179 of file snow.h.

Referenced by encode_blocks(), encode_frame(), and encode_init().

◆ iterative_dia_size

int SnowContext::iterative_dia_size

Definition at line 180 of file snow.h.

Referenced by iterative_me().

◆ scenechange_threshold

int SnowContext::scenechange_threshold

Definition at line 181 of file snow.h.

Referenced by encode_frame().

◆ m

MpegEncContext SnowContext::m

Definition at line 183 of file snow.h.

Referenced by encode_end(), encode_frame(), encode_init(), encode_q_branch(), ff_snow_common_end(), get_4block_rd(), get_block_rd(), get_dc(), and ratecontrol_1pass().

◆ scratchbuf

uint8_t* SnowContext::scratchbuf

Definition at line 185 of file snow.h.

Referenced by add_yblock(), ff_snow_common_end(), ff_snow_common_init_after_header(), and get_block_rd().

◆ emu_edge_buffer

uint8_t* SnowContext::emu_edge_buffer

Definition at line 186 of file snow.h.

Referenced by ff_snow_common_end(), ff_snow_common_init_after_header(), and get_block_rd().

◆ avmv

AVMotionVector* SnowContext::avmv

Definition at line 188 of file snow.h.

Referenced by decode_frame(), and predict_slice_buffered().

◆ avmv_index

int SnowContext::avmv_index

Definition at line 189 of file snow.h.

Referenced by decode_frame(), and predict_slice_buffered().

◆ encoding_error

uint64_t SnowContext::encoding_error[AV_NUM_DATA_POINTERS]

Definition at line 190 of file snow.h.

Referenced by encode_frame().

◆ pred

int SnowContext::pred

Definition at line 192 of file snow.h.

Referenced by encode_init().

The documentation for this struct was generated from the following file:

libavcodec/snow.h