DCAEncContext Struct Reference

Data Fields
AVClass *	class
PutBitContext	pb
DCAADPCMEncContext	adpcm_ctx
FFTContext	mdct
CompressionOptions	options
int	frame_size
int	frame_bits
int	fullband_channels
int	channels
int	lfe_channel
int	samplerate_index
int	bitrate_index
int	channel_config
const int32_t *	band_interpolation
const int32_t *	band_spectrum
int	lfe_scale_factor
softfloat	lfe_quant
int32_t	lfe_peak_cb
const int8_t *	channel_order_tab
	channel reordering table, lfe and non lfe More...
int32_t	prediction_mode [MAX_CHANNELS][DCAENC_SUBBANDS]
int32_t	adpcm_history [MAX_CHANNELS][DCAENC_SUBBANDS][DCA_ADPCM_COEFFS *2]
int32_t	history [MAX_CHANNELS][512]
int32_t *	subband [MAX_CHANNELS][DCAENC_SUBBANDS]
int32_t	quantized [MAX_CHANNELS][DCAENC_SUBBANDS][SUBBAND_SAMPLES]
int32_t	peak_cb [MAX_CHANNELS][DCAENC_SUBBANDS]
int32_t	diff_peak_cb [MAX_CHANNELS][DCAENC_SUBBANDS]
	expected peak of residual signal More...
int32_t	downsampled_lfe [DCA_LFE_SAMPLES]
int32_t	masking_curve_cb [SUBSUBFRAMES][256]
int32_t	bit_allocation_sel [MAX_CHANNELS]
int	abits [MAX_CHANNELS][DCAENC_SUBBANDS]
int	scale_factor [MAX_CHANNELS][DCAENC_SUBBANDS]
softfloat	quant [MAX_CHANNELS][DCAENC_SUBBANDS]
int32_t	quant_index_sel [MAX_CHANNELS][DCA_CODE_BOOKS]
int32_t	eff_masking_curve_cb [256]
int32_t	band_masking_cb [32]
int32_t	worst_quantization_noise
int32_t	worst_noise_ever
int	consumed_bits
int	consumed_adpcm_bits
	Number of bits to transmit ADPCM related info. More...
int32_t	cos_table [2048]
int32_t	band_interpolation_tab [2][512]
int32_t	band_spectrum_tab [2][8]
int32_t	auf [9][AUBANDS][256]
int32_t	cb_to_add [256]
int32_t	cb_to_level [2048]
int32_t	lfe_fir_64i [512]

Detailed Description

Definition at line 61 of file dcaenc.c.

Field Documentation

class

AVClass* DCAEncContext::class

Definition at line 62 of file dcaenc.c.

pb

PutBitContext DCAEncContext::pb

Definition at line 63 of file dcaenc.c.

Referenced by encode_frame(), put_frame_header(), put_primary_audio_header(), put_subframe(), and put_subframe_samples().

adpcm_ctx

DCAADPCMEncContext DCAEncContext::adpcm_ctx

Definition at line 64 of file dcaenc.c.

Referenced by adpcm_analysis(), encode_close(), and encode_init().

mdct

FFTContext DCAEncContext::mdct

Definition at line 65 of file dcaenc.c.

Referenced by calc_power(), encode_close(), and encode_init().

options

CompressionOptions DCAEncContext::options

Definition at line 66 of file dcaenc.c.

Referenced by encode_frame().

frame_size

int DCAEncContext::frame_size

Definition at line 67 of file dcaenc.c.

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

frame_bits

int DCAEncContext::frame_bits

Definition at line 68 of file dcaenc.c.

Referenced by assign_bits(), and encode_init().

fullband_channels

int DCAEncContext::fullband_channels

Definition at line 69 of file dcaenc.c.

Referenced by adpcm_analysis(), calc_masking(), encode_init(), find_peaks(), init_quantization_noise(), put_primary_audio_header(), put_subframe(), quantize_adpcm(), quantize_pcm(), and subband_transform().

channels

int DCAEncContext::channels

Definition at line 70 of file dcaenc.c.

Referenced by calc_masking(), encode_init(), fill_in_adpcm_bufer(), lfe_downsample(), shift_history(), and subband_transform().

lfe_channel

int DCAEncContext::lfe_channel

Definition at line 71 of file dcaenc.c.

Referenced by calc_lfe_scales(), encode_frame(), encode_init(), find_peaks(), init_quantization_noise(), put_frame_header(), and put_subframe().

samplerate_index

int DCAEncContext::samplerate_index

Definition at line 72 of file dcaenc.c.

Referenced by adjust_jnd(), encode_init(), and put_frame_header().

bitrate_index

int DCAEncContext::bitrate_index

Definition at line 73 of file dcaenc.c.

Referenced by encode_init(), get_step_size(), and put_frame_header().

channel_config

int DCAEncContext::channel_config

Definition at line 74 of file dcaenc.c.

Referenced by encode_init(), lfe_downsample(), and put_frame_header().

band_interpolation

const int32_t* DCAEncContext::band_interpolation

Definition at line 75 of file dcaenc.c.

Referenced by encode_init(), and subband_transform().

band_spectrum

const int32_t* DCAEncContext::band_spectrum

Definition at line 76 of file dcaenc.c.

Referenced by encode_init(), walk_band_high(), and walk_band_low().

lfe_scale_factor

int DCAEncContext::lfe_scale_factor

Definition at line 77 of file dcaenc.c.

Referenced by calc_lfe_scales(), and put_subframe().

lfe_quant

softfloat DCAEncContext::lfe_quant

Definition at line 78 of file dcaenc.c.

Referenced by calc_lfe_scales(), and put_subframe().

lfe_peak_cb

int32_t DCAEncContext::lfe_peak_cb

Definition at line 79 of file dcaenc.c.

Referenced by calc_lfe_scales(), and find_peaks().

channel_order_tab

const int8_t* DCAEncContext::channel_order_tab

channel reordering table, lfe and non lfe

Definition at line 80 of file dcaenc.c.

Referenced by calc_masking(), encode_init(), shift_history(), and subband_transform().

prediction_mode

int32_t DCAEncContext::prediction_mode[MAX_CHANNELS][DCAENC_SUBBANDS]

Definition at line 82 of file dcaenc.c.

Referenced by adpcm_analysis(), encode_init(), fill_in_adpcm_bufer(), init_quantization_noise(), put_subframe(), quantize_adpcm(), quantize_adpcm_subband(), and quantize_pcm().

adpcm_history

int32_t DCAEncContext::adpcm_history[MAX_CHANNELS][DCAENC_SUBBANDS][DCA_ADPCM_COEFFS *2]

Definition at line 83 of file dcaenc.c.

Referenced by encode_init(), fill_in_adpcm_bufer(), and quantize_adpcm_subband().

history

int32_t DCAEncContext::history[MAX_CHANNELS][512]

Definition at line 84 of file dcaenc.c.

Referenced by calc_masking(), lfe_downsample(), shift_history(), and subband_transform().

subband

int32_t* DCAEncContext::subband[MAX_CHANNELS][DCAENC_SUBBANDS]

Definition at line 85 of file dcaenc.c.

Referenced by adpcm_analysis(), fill_in_adpcm_bufer(), find_peaks(), quantize_adpcm_subband(), quantize_pcm(), subband_bufer_alloc(), subband_bufer_free(), and subband_transform().

quantized

int32_t DCAEncContext::quantized[MAX_CHANNELS][DCAENC_SUBBANDS][SUBBAND_SAMPLES]

Definition at line 86 of file dcaenc.c.

Referenced by fill_in_adpcm_bufer(), init_quantization_noise(), put_subframe_samples(), quantize_adpcm_subband(), and quantize_pcm().

peak_cb

int32_t DCAEncContext::peak_cb[MAX_CHANNELS][DCAENC_SUBBANDS]

Definition at line 87 of file dcaenc.c.

Referenced by find_peaks(), and init_quantization_noise().

diff_peak_cb

int32_t DCAEncContext::diff_peak_cb[MAX_CHANNELS][DCAENC_SUBBANDS]

expected peak of residual signal

Definition at line 88 of file dcaenc.c.

Referenced by adpcm_analysis(), and quantize_adpcm_subband().

downsampled_lfe

int32_t DCAEncContext::downsampled_lfe[DCA_LFE_SAMPLES]

Definition at line 89 of file dcaenc.c.

Referenced by find_peaks(), lfe_downsample(), and put_subframe().

masking_curve_cb

int32_t DCAEncContext::masking_curve_cb[SUBSUBFRAMES][256]

Definition at line 90 of file dcaenc.c.

Referenced by calc_masking().

bit_allocation_sel

int32_t DCAEncContext::bit_allocation_sel[MAX_CHANNELS]

Definition at line 91 of file dcaenc.c.

Referenced by encode_init(), init_quantization_noise(), put_primary_audio_header(), and put_subframe().

abits

int DCAEncContext::abits[MAX_CHANNELS][DCAENC_SUBBANDS]

Definition at line 92 of file dcaenc.c.

Referenced by get_step_size(), init_quantization_noise(), put_subframe(), put_subframe_samples(), and quantize_adpcm_subband().

scale_factor

int DCAEncContext::scale_factor[MAX_CHANNELS][DCAENC_SUBBANDS]

Definition at line 93 of file dcaenc.c.

Referenced by fill_in_adpcm_bufer(), init_quantization_noise(), put_subframe(), and quantize_adpcm_subband().

quant

softfloat DCAEncContext::quant[MAX_CHANNELS][DCAENC_SUBBANDS]

Definition at line 94 of file dcaenc.c.

Referenced by init_quantization_noise(), quantize_adpcm_subband(), and quantize_pcm().

quant_index_sel

int32_t DCAEncContext::quant_index_sel[MAX_CHANNELS][DCA_CODE_BOOKS]

Definition at line 95 of file dcaenc.c.

Referenced by encode_init(), init_quantization_noise(), put_primary_audio_header(), and put_subframe_samples().

eff_masking_curve_cb

int32_t DCAEncContext::eff_masking_curve_cb[256]

Definition at line 96 of file dcaenc.c.

Referenced by calc_masking(), and update_band_masking().

band_masking_cb

int32_t DCAEncContext::band_masking_cb[32]

Definition at line 97 of file dcaenc.c.

Referenced by calc_masking(), init_quantization_noise(), and update_band_masking().

worst_quantization_noise

int32_t DCAEncContext::worst_quantization_noise

Definition at line 98 of file dcaenc.c.

Referenced by assign_bits(), and encode_init().

worst_noise_ever

int32_t DCAEncContext::worst_noise_ever

Definition at line 99 of file dcaenc.c.

Referenced by assign_bits(), and encode_init().

consumed_bits

int DCAEncContext::consumed_bits

Definition at line 100 of file dcaenc.c.

Referenced by assign_bits(), and init_quantization_noise().

consumed_adpcm_bits

int DCAEncContext::consumed_adpcm_bits

Number of bits to transmit ADPCM related info.

Definition at line 101 of file dcaenc.c.

Referenced by adpcm_analysis(), encode_init(), and init_quantization_noise().

cos_table

int32_t DCAEncContext::cos_table[2048]

Definition at line 103 of file dcaenc.c.

Referenced by encode_init().

band_interpolation_tab

int32_t DCAEncContext::band_interpolation_tab[2][512]

Definition at line 104 of file dcaenc.c.

Referenced by encode_init().

band_spectrum_tab

int32_t DCAEncContext::band_spectrum_tab[2][8]

Definition at line 105 of file dcaenc.c.

Referenced by encode_init().

auf

int32_t DCAEncContext::auf[9][AUBANDS][256]

Definition at line 106 of file dcaenc.c.

Referenced by adjust_jnd(), and encode_init().

cb_to_add

int32_t DCAEncContext::cb_to_add[256]

Definition at line 107 of file dcaenc.c.

Referenced by add_cb(), and encode_init().

cb_to_level

int32_t DCAEncContext::cb_to_level[2048]

Definition at line 108 of file dcaenc.c.

Referenced by calc_one_scale(), encode_init(), get_cb(), and quantize_adpcm_subband().

lfe_fir_64i

int32_t DCAEncContext::lfe_fir_64i[512]

Definition at line 109 of file dcaenc.c.

Referenced by encode_init(), and lfe_downsample().

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

• libavcodec/dcaenc.c