main decoder context More...

Data Fields
AVCodecContext *	avctx

AVFrame *	frame

LLAudDSPContext	dsp
	accelerated DSP functions More...

uint8_t	frame_data [MAX_FRAMESIZE+AV_INPUT_BUFFER_PADDING_SIZE]
	compressed frame data More...

PutBitContext	pb
	context for filling the frame_data buffer More...

uint32_t	decode_flags
	used compression features More...

int	len_prefix
	frame is prefixed with its length More...

int	dynamic_range_compression
	frame contains DRC data More...

uint8_t	bits_per_sample
	integer audio sample size for the unscaled IMDCT output (used to scale to [-1.0, 1.0]) More...

uint16_t	samples_per_frame
	number of samples to output More...

uint16_t	log2_frame_size

int8_t	num_channels
	number of channels in the stream (same as AVCodecContext.num_channels) More...

int8_t	lfe_channel
	lfe channel index More...

uint8_t	max_num_subframes

uint8_t	subframe_len_bits
	number of bits used for the subframe length More...

uint8_t	max_subframe_len_bit
	flag indicating that the subframe is of maximum size when the first subframe length bit is 1 More...

uint16_t	min_samples_per_subframe

GetBitContext	pgb
	bitstream reader context for the packet More...

int	next_packet_start
	start offset of the next WMA packet in the demuxer packet More...

uint8_t	packet_offset
	offset to the frame in the packet More...

uint8_t	packet_sequence_number
	current packet number More...

int	num_saved_bits
	saved number of bits More...

int	frame_offset
	frame offset in the bit reservoir More...

int	subframe_offset
	subframe offset in the bit reservoir More...

uint8_t	packet_loss
	set in case of bitstream error More...

uint8_t	packet_done
	set when a packet is fully decoded More...

uint32_t	frame_num
	current frame number (not used for decoding) More...

GetBitContext	gb
	bitstream reader context More...

int	buf_bit_size
	buffer size in bits More...

int16_t *	samples_16 [WMALL_MAX_CHANNELS]
	current samplebuffer pointer (16-bit) More...

int32_t *	samples_32 [WMALL_MAX_CHANNELS]
	current samplebuffer pointer (24-bit) More...

uint8_t	drc_gain
	gain for the DRC tool More...

int8_t	skip_frame
	skip output step More...

int8_t	parsed_all_subframes
	all subframes decoded? More...

int16_t	subframe_len
	current subframe length More...

int8_t	channels_for_cur_subframe
	number of channels that contain the subframe More...

int8_t	channel_indexes_for_cur_subframe [WMALL_MAX_CHANNELS]

WmallChannelCtx	channel [WMALL_MAX_CHANNELS]
	per channel data More...

uint8_t	do_arith_coding

uint8_t	do_ac_filter

uint8_t	do_inter_ch_decorr

uint8_t	do_mclms

uint8_t	do_lpc

int8_t	acfilter_order

int8_t	acfilter_scaling

int16_t	acfilter_coeffs [16]

int	acfilter_prevvalues [WMALL_MAX_CHANNELS][16]

int8_t	mclms_order

int8_t	mclms_scaling

int16_t	mclms_coeffs [WMALL_MAX_CHANNELS WMALL_MAX_CHANNELS 32]

int16_t	mclms_coeffs_cur [WMALL_MAX_CHANNELS *WMALL_MAX_CHANNELS]

int16_t	mclms_prevvalues [WMALL_MAX_CHANNELS 2 32]

int16_t	mclms_updates [WMALL_MAX_CHANNELS 2 32]

int	mclms_recent

int	movave_scaling

int	quant_stepsize

struct {
int order

int scaling

int coefsend

int bitsend

int16_t coefs [MAX_ORDER+WMALL_COEFF_PAD_SIZE/sizeof(int16_t)]

int16_t lms_prevvalues [MAX_ORDER *2+WMALL_COEFF_PAD_SIZE/sizeof(int16_t)]

int16_t lms_updates [MAX_ORDER *2+WMALL_COEFF_PAD_SIZE/sizeof(int16_t)]

int recent

}	cdlms [WMALL_MAX_CHANNELS][9]

int	cdlms_ttl [WMALL_MAX_CHANNELS]

int	bV3RTM

int	is_channel_coded [WMALL_MAX_CHANNELS]

int	update_speed [WMALL_MAX_CHANNELS]

int	transient [WMALL_MAX_CHANNELS]

int	transient_pos [WMALL_MAX_CHANNELS]

int	seekable_tile

int	ave_sum [WMALL_MAX_CHANNELS]

int	channel_residues [WMALL_MAX_CHANNELS][WMALL_BLOCK_MAX_SIZE]

int	lpc_coefs [WMALL_MAX_CHANNELS][40]

int	lpc_order

int	lpc_scaling

int	lpc_intbits

int	channel_coeffs [WMALL_MAX_CHANNELS][WMALL_BLOCK_MAX_SIZE]

Detailed Description

main decoder context

Definition at line 70 of file wmalosslessdec.c.

Field Documentation

AVCodecContext* WmallDecodeCtx::avctx

Definition at line 72 of file wmalosslessdec.c.

Referenced by decode_cdlms(), decode_frame(), decode_init(), decode_subframe(), decode_subframe_length(), decode_tilehdr(), and save_bits().

AVFrame* WmallDecodeCtx::frame

Definition at line 73 of file wmalosslessdec.c.

Referenced by decode_close(), decode_frame(), decode_init(), decode_packet(), decode_subframe(), and flush().

LLAudDSPContext WmallDecodeCtx::dsp

accelerated DSP functions

Definition at line 74 of file wmalosslessdec.c.

Referenced by decode_init(), and revert_cdlms().

uint8_t WmallDecodeCtx::frame_data[MAX_FRAMESIZE+AV_INPUT_BUFFER_PADDING_SIZE]

compressed frame data

Definition at line 75 of file wmalosslessdec.c.

Referenced by decode_init(), decode_packet(), flush(), and save_bits().

PutBitContext WmallDecodeCtx::pb

context for filling the frame_data buffer

Definition at line 76 of file wmalosslessdec.c.

Referenced by decode_init(), decode_packet(), flush(), and save_bits().

uint32_t WmallDecodeCtx::decode_flags

used compression features

Definition at line 79 of file wmalosslessdec.c.

Referenced by decode_init().

int WmallDecodeCtx::len_prefix

frame is prefixed with its length

Definition at line 80 of file wmalosslessdec.c.

Referenced by decode_frame(), decode_init(), and decode_packet().

int WmallDecodeCtx::dynamic_range_compression

frame contains DRC data

Definition at line 81 of file wmalosslessdec.c.

Referenced by decode_frame(), and decode_init().

uint8_t WmallDecodeCtx::bits_per_sample

integer audio sample size for the unscaled IMDCT output (used to scale to [-1.0, 1.0])

Definition at line 82 of file wmalosslessdec.c.

Referenced by decode_channel_residues(), decode_init(), decode_subframe(), lms_update(), and mclms_update().

uint16_t WmallDecodeCtx::samples_per_frame

number of samples to output

Definition at line 83 of file wmalosslessdec.c.

Referenced by decode_channel_residues(), decode_frame(), decode_init(), decode_subframe(), decode_subframe_length(), decode_tilehdr(), and reset_codec().

uint16_t WmallDecodeCtx::log2_frame_size

Definition at line 84 of file wmalosslessdec.c.

Referenced by decode_frame(), decode_init(), and decode_packet().

int8_t WmallDecodeCtx::num_channels

number of channels in the stream (same as AVCodecContext.num_channels)

Definition at line 85 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), decode_cdlms(), decode_frame(), decode_init(), decode_lpc(), decode_mclms(), decode_subframe(), decode_tilehdr(), mclms_predict(), mclms_update(), reset_codec(), revert_acfilter(), and revert_inter_ch_decorr().

int8_t WmallDecodeCtx::lfe_channel

lfe channel index

Definition at line 86 of file wmalosslessdec.c.

Referenced by decode_init().

uint8_t WmallDecodeCtx::max_num_subframes

Definition at line 87 of file wmalosslessdec.c.

Referenced by decode_init(), decode_subframe_length(), and decode_tilehdr().

uint8_t WmallDecodeCtx::subframe_len_bits

number of bits used for the subframe length

Definition at line 88 of file wmalosslessdec.c.

Referenced by decode_init().

uint8_t WmallDecodeCtx::max_subframe_len_bit

flag indicating that the subframe is of maximum size when the first subframe length bit is 1

Definition at line 89 of file wmalosslessdec.c.

Referenced by decode_init().

uint16_t WmallDecodeCtx::min_samples_per_subframe

Definition at line 90 of file wmalosslessdec.c.

Referenced by decode_init(), decode_subframe_length(), and decode_tilehdr().

GetBitContext WmallDecodeCtx::pgb

bitstream reader context for the packet

Definition at line 93 of file wmalosslessdec.c.

Referenced by decode_packet().

int WmallDecodeCtx::next_packet_start

start offset of the next WMA packet in the demuxer packet

Definition at line 94 of file wmalosslessdec.c.

Referenced by decode_packet(), and flush().

uint8_t WmallDecodeCtx::packet_offset

offset to the frame in the packet

Definition at line 95 of file wmalosslessdec.c.

Referenced by decode_packet().

uint8_t WmallDecodeCtx::packet_sequence_number

current packet number

Definition at line 96 of file wmalosslessdec.c.

Referenced by decode_packet().

int WmallDecodeCtx::num_saved_bits

saved number of bits

Definition at line 97 of file wmalosslessdec.c.

Referenced by decode_packet(), flush(), and save_bits().

int WmallDecodeCtx::frame_offset

frame offset in the bit reservoir

Definition at line 98 of file wmalosslessdec.c.

Referenced by decode_frame(), decode_packet(), flush(), and save_bits().

int WmallDecodeCtx::subframe_offset

subframe offset in the bit reservoir

Definition at line 99 of file wmalosslessdec.c.

Referenced by decode_subframe().

uint8_t WmallDecodeCtx::packet_loss

set in case of bitstream error

Definition at line 100 of file wmalosslessdec.c.

Referenced by decode_frame(), decode_init(), decode_packet(), flush(), and save_bits().

uint8_t WmallDecodeCtx::packet_done

set when a packet is fully decoded

Definition at line 101 of file wmalosslessdec.c.

Referenced by decode_packet(), and flush().

uint32_t WmallDecodeCtx::frame_num

current frame number (not used for decoding)

Definition at line 104 of file wmalosslessdec.c.

Referenced by decode_frame().

GetBitContext WmallDecodeCtx::gb

bitstream reader context

Definition at line 105 of file wmalosslessdec.c.

Referenced by decode_ac_filter(), decode_cdlms(), decode_channel_residues(), decode_frame(), decode_lpc(), decode_mclms(), decode_packet(), decode_subframe(), decode_subframe_length(), decode_tilehdr(), and save_bits().

int WmallDecodeCtx::buf_bit_size

buffer size in bits

Definition at line 106 of file wmalosslessdec.c.

Referenced by decode_packet(), and remaining_bits().

int16_t* WmallDecodeCtx::samples_16[WMALL_MAX_CHANNELS]

current samplebuffer pointer (16-bit)

Definition at line 107 of file wmalosslessdec.c.

Referenced by decode_frame(), and decode_subframe().

int32_t* WmallDecodeCtx::samples_32[WMALL_MAX_CHANNELS]

current samplebuffer pointer (24-bit)

Definition at line 108 of file wmalosslessdec.c.

Referenced by decode_frame(), and decode_subframe().

uint8_t WmallDecodeCtx::drc_gain

gain for the DRC tool

Definition at line 109 of file wmalosslessdec.c.

Referenced by decode_frame().

int8_t WmallDecodeCtx::skip_frame

skip output step

Definition at line 110 of file wmalosslessdec.c.

Referenced by decode_frame(), and decode_init().

int8_t WmallDecodeCtx::parsed_all_subframes

all subframes decoded?

Definition at line 111 of file wmalosslessdec.c.

Referenced by decode_frame(), and decode_subframe().

int16_t WmallDecodeCtx::subframe_len

current subframe length

Definition at line 114 of file wmalosslessdec.c.

int8_t WmallDecodeCtx::channels_for_cur_subframe

number of channels that contain the subframe

Definition at line 115 of file wmalosslessdec.c.

Referenced by decode_subframe().

int8_t WmallDecodeCtx::channel_indexes_for_cur_subframe[WMALL_MAX_CHANNELS]

Definition at line 116 of file wmalosslessdec.c.

Referenced by decode_subframe().

WmallChannelCtx WmallDecodeCtx::channel[WMALL_MAX_CHANNELS]

per channel data

Definition at line 118 of file wmalosslessdec.c.

Referenced by decode_channel_residues(), decode_frame(), decode_init(), decode_subframe(), decode_tilehdr(), and reset_codec().

uint8_t WmallDecodeCtx::do_arith_coding

Definition at line 122 of file wmalosslessdec.c.

Referenced by decode_subframe().

uint8_t WmallDecodeCtx::do_ac_filter

Definition at line 123 of file wmalosslessdec.c.

Referenced by decode_subframe().

uint8_t WmallDecodeCtx::do_inter_ch_decorr

Definition at line 124 of file wmalosslessdec.c.

Referenced by decode_channel_residues(), and decode_subframe().

uint8_t WmallDecodeCtx::do_mclms

Definition at line 125 of file wmalosslessdec.c.

Referenced by decode_subframe().

uint8_t WmallDecodeCtx::do_lpc

Definition at line 126 of file wmalosslessdec.c.

Referenced by decode_subframe().

int8_t WmallDecodeCtx::acfilter_order

Definition at line 128 of file wmalosslessdec.c.

Referenced by decode_ac_filter(), and revert_acfilter().

int8_t WmallDecodeCtx::acfilter_scaling

Definition at line 129 of file wmalosslessdec.c.

Referenced by decode_ac_filter(), and revert_acfilter().

int16_t WmallDecodeCtx::acfilter_coeffs[16]

Definition at line 130 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), decode_ac_filter(), and revert_acfilter().

int WmallDecodeCtx::acfilter_prevvalues[WMALL_MAX_CHANNELS][16]

Definition at line 131 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), and revert_acfilter().

int8_t WmallDecodeCtx::mclms_order

Definition at line 133 of file wmalosslessdec.c.

Referenced by decode_mclms(), mclms_predict(), mclms_update(), and reset_codec().

int8_t WmallDecodeCtx::mclms_scaling

Definition at line 134 of file wmalosslessdec.c.

Referenced by decode_mclms(), and mclms_predict().

int16_t WmallDecodeCtx::mclms_coeffs[WMALL_MAX_CHANNELS *WMALL_MAX_CHANNELS *32]

Definition at line 135 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), decode_mclms(), mclms_predict(), and mclms_update().

int16_t WmallDecodeCtx::mclms_coeffs_cur[WMALL_MAX_CHANNELS *WMALL_MAX_CHANNELS]

Definition at line 136 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), decode_mclms(), mclms_predict(), and mclms_update().

int16_t WmallDecodeCtx::mclms_prevvalues[WMALL_MAX_CHANNELS *2 *32]

Definition at line 137 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), mclms_predict(), and mclms_update().

int16_t WmallDecodeCtx::mclms_updates[WMALL_MAX_CHANNELS *2 *32]

Definition at line 138 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), and mclms_update().

int WmallDecodeCtx::mclms_recent

Definition at line 139 of file wmalosslessdec.c.

Referenced by mclms_predict(), mclms_update(), and reset_codec().

int WmallDecodeCtx::movave_scaling

Definition at line 141 of file wmalosslessdec.c.

Referenced by decode_channel_residues(), and decode_subframe().

int WmallDecodeCtx::quant_stepsize

Definition at line 142 of file wmalosslessdec.c.

Referenced by decode_subframe().

int WmallDecodeCtx::order

Definition at line 145 of file wmalosslessdec.c.

Referenced by decode_cdlms(), decode_subframe(), flush(), lms_update(), reset_codec(), revert_cdlms(), use_high_update_speed(), and use_normal_update_speed().

int WmallDecodeCtx::scaling

Definition at line 146 of file wmalosslessdec.c.

Referenced by decode_cdlms(), and revert_cdlms().

int WmallDecodeCtx::coefsend

Definition at line 147 of file wmalosslessdec.c.

Referenced by decode_cdlms().

int WmallDecodeCtx::bitsend

Definition at line 148 of file wmalosslessdec.c.

Referenced by decode_cdlms().

int16_t WmallDecodeCtx::coefs[MAX_ORDER+WMALL_COEFF_PAD_SIZE/sizeof(int16_t)]

Definition at line 149 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), decode_cdlms(), and revert_cdlms().

int16_t WmallDecodeCtx::lms_prevvalues[MAX_ORDER *2+WMALL_COEFF_PAD_SIZE/sizeof(int16_t)]

Definition at line 150 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), lms_update(), and revert_cdlms().

int16_t WmallDecodeCtx::lms_updates[MAX_ORDER *2+WMALL_COEFF_PAD_SIZE/sizeof(int16_t)]

Definition at line 151 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), lms_update(), revert_cdlms(), use_high_update_speed(), and use_normal_update_speed().

int WmallDecodeCtx::recent

Definition at line 152 of file wmalosslessdec.c.

Referenced by lms_update(), reset_codec(), revert_cdlms(), use_high_update_speed(), and use_normal_update_speed().

struct { ... } WmallDecodeCtx::cdlms[WMALL_MAX_CHANNELS][9]

Referenced by clear_codec_buffers(), decode_cdlms(), decode_subframe(), flush(), lms_update(), reset_codec(), revert_cdlms(), use_high_update_speed(), and use_normal_update_speed().

int WmallDecodeCtx::cdlms_ttl[WMALL_MAX_CHANNELS]

Definition at line 155 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), decode_cdlms(), reset_codec(), revert_cdlms(), use_high_update_speed(), and use_normal_update_speed().

int WmallDecodeCtx::bV3RTM

Definition at line 157 of file wmalosslessdec.c.

Referenced by decode_init(), decode_subframe(), use_high_update_speed(), and use_normal_update_speed().

int WmallDecodeCtx::is_channel_coded[WMALL_MAX_CHANNELS]

Definition at line 159 of file wmalosslessdec.c.

Referenced by decode_subframe(), mclms_predict(), and revert_inter_ch_decorr().

int WmallDecodeCtx::update_speed[WMALL_MAX_CHANNELS]

Definition at line 160 of file wmalosslessdec.c.

Referenced by lms_update(), use_high_update_speed(), and use_normal_update_speed().

int WmallDecodeCtx::transient[WMALL_MAX_CHANNELS]

Definition at line 162 of file wmalosslessdec.c.

Referenced by decode_channel_residues(), and reset_codec().

int WmallDecodeCtx::transient_pos[WMALL_MAX_CHANNELS]

Definition at line 163 of file wmalosslessdec.c.

Referenced by decode_channel_residues(), and reset_codec().

int WmallDecodeCtx::seekable_tile

Definition at line 164 of file wmalosslessdec.c.

Referenced by decode_channel_residues(), and decode_subframe().

int WmallDecodeCtx::ave_sum[WMALL_MAX_CHANNELS]

Definition at line 166 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), and decode_channel_residues().

int WmallDecodeCtx::channel_residues[WMALL_MAX_CHANNELS][WMALL_BLOCK_MAX_SIZE]

Definition at line 168 of file wmalosslessdec.c.

Referenced by decode_channel_residues(), decode_subframe(), mclms_predict(), mclms_update(), revert_acfilter(), revert_cdlms(), and revert_inter_ch_decorr().

int WmallDecodeCtx::lpc_coefs[WMALL_MAX_CHANNELS][40]

Definition at line 170 of file wmalosslessdec.c.

Referenced by clear_codec_buffers(), and decode_lpc().

int WmallDecodeCtx::lpc_order

Definition at line 171 of file wmalosslessdec.c.

Referenced by decode_lpc().

int WmallDecodeCtx::lpc_scaling

Definition at line 172 of file wmalosslessdec.c.

Referenced by decode_lpc().

int WmallDecodeCtx::lpc_intbits

Definition at line 173 of file wmalosslessdec.c.

Referenced by decode_lpc().

int WmallDecodeCtx::channel_coeffs[WMALL_MAX_CHANNELS][WMALL_BLOCK_MAX_SIZE]

Definition at line 175 of file wmalosslessdec.c.

Referenced by decode_subframe().

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

libavcodec/wmalosslessdec.c

Data Fields

Detailed Description

Field Documentation