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FFmpeg
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FFmpeg
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main decoder context More...
Data Fields | |
| AVCodecContext * | avctx |
| AVFrame | frame |
| uint8_t | frame_data [MAX_FRAMESIZE+FF_INPUT_BUFFER_PADDING_SIZE] |
| compressed frame data | |
| PutBitContext | pb |
| context for filling the frame_data buffer | |
| uint32_t | decode_flags |
| used compression features | |
| int | len_prefix |
| frame is prefixed with its length | |
| int | dynamic_range_compression |
| frame contains DRC data | |
| uint8_t | bits_per_sample |
| integer audio sample size for the unscaled IMDCT output (used to scale to [-1.0, 1.0]) | |
| uint16_t | samples_per_frame |
| number of samples to output | |
| uint16_t | log2_frame_size |
| int8_t | num_channels |
| number of channels in the stream (same as AVCodecContext.num_channels) | |
| int8_t | lfe_channel |
| lfe channel index | |
| uint8_t | max_num_subframes |
| uint8_t | subframe_len_bits |
| number of bits used for the subframe length | |
| uint8_t | max_subframe_len_bit |
| flag indicating that the subframe is of maximum size when the first subframe length bit is 1 | |
| uint16_t | min_samples_per_subframe |
| GetBitContext | pgb |
| bitstream reader context for the packet | |
| int | next_packet_start |
| start offset of the next WMA packet in the demuxer packet | |
| uint8_t | packet_offset |
| offset to the frame in the packet | |
| uint8_t | packet_sequence_number |
| current packet number | |
| int | num_saved_bits |
| saved number of bits | |
| int | frame_offset |
| frame offset in the bit reservoir | |
| int | subframe_offset |
| subframe offset in the bit reservoir | |
| uint8_t | packet_loss |
| set in case of bitstream error | |
| uint8_t | packet_done |
| set when a packet is fully decoded | |
| uint32_t | frame_num |
| current frame number (not used for decoding) | |
| GetBitContext | gb |
| bitstream reader context | |
| int | buf_bit_size |
| buffer size in bits | |
| int16_t * | samples_16 [WMALL_MAX_CHANNELS] |
| current samplebuffer pointer (16-bit) | |
| int32_t * | samples_32 [WMALL_MAX_CHANNELS] |
| current samplebuffer pointer (24-bit) | |
| uint8_t | drc_gain |
| gain for the DRC tool | |
| int8_t | skip_frame |
| skip output step | |
| int8_t | parsed_all_subframes |
| all subframes decoded? | |
| int16_t | subframe_len |
| current subframe length | |
| int8_t | channels_for_cur_subframe |
| number of channels that contain the subframe | |
| int8_t | channel_indexes_for_cur_subframe [WMALL_MAX_CHANNELS] |
| WmallChannelCtx | channel [WMALL_MAX_CHANNELS] |
| per channel data | |
| 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 |
| int64_t | acfilter_coeffs [16] |
| int | acfilter_prevvalues [WMALL_MAX_CHANNELS][16] |
| int8_t | mclms_order |
| int8_t | mclms_scaling |
| int16_t | mclms_coeffs [128] |
| int16_t | mclms_coeffs_cur [4] |
| 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] | |
| int16_t lms_prevvalues [MAX_ORDER *2] | |
| int16_t lms_updates [MAX_ORDER *2] | |
| 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] |
main decoder context
Definition at line 66 of file wmalosslessdec.c.
| AVCodecContext* WmallDecodeCtx::avctx |
Definition at line 68 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 69 of file wmalosslessdec.c.
Referenced by decode_frame(), decode_init(), decode_packet(), decode_subframe(), and flush().
| uint8_t WmallDecodeCtx::frame_data[MAX_FRAMESIZE+FF_INPUT_BUFFER_PADDING_SIZE] |
compressed frame data
Definition at line 70 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 71 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 74 of file wmalosslessdec.c.
Referenced by decode_init().
| int WmallDecodeCtx::len_prefix |
frame is prefixed with its length
Definition at line 75 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 76 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 77 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 78 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 79 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 80 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 |
| uint8_t WmallDecodeCtx::max_num_subframes |
Definition at line 82 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 83 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 84 of file wmalosslessdec.c.
Referenced by decode_init().
| uint16_t WmallDecodeCtx::min_samples_per_subframe |
Definition at line 85 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 88 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 89 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 90 of file wmalosslessdec.c.
Referenced by decode_packet().
| uint8_t WmallDecodeCtx::packet_sequence_number |
current packet number
Definition at line 91 of file wmalosslessdec.c.
Referenced by decode_packet().
| int WmallDecodeCtx::num_saved_bits |
saved number of bits
Definition at line 92 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 93 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 94 of file wmalosslessdec.c.
Referenced by decode_subframe().
| uint8_t WmallDecodeCtx::packet_loss |
set in case of bitstream error
Definition at line 95 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 96 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 99 of file wmalosslessdec.c.
Referenced by decode_frame().
| GetBitContext WmallDecodeCtx::gb |
bitstream reader context
Definition at line 100 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 101 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 102 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 103 of file wmalosslessdec.c.
Referenced by decode_frame(), and decode_subframe().
| uint8_t WmallDecodeCtx::drc_gain |
gain for the DRC tool
Definition at line 104 of file wmalosslessdec.c.
Referenced by decode_frame().
| int8_t WmallDecodeCtx::skip_frame |
skip output step
Definition at line 105 of file wmalosslessdec.c.
Referenced by decode_frame(), and decode_init().
| int8_t WmallDecodeCtx::parsed_all_subframes |
all subframes decoded?
Definition at line 106 of file wmalosslessdec.c.
Referenced by decode_frame(), and decode_subframe().
| int16_t WmallDecodeCtx::subframe_len |
current subframe length
Definition at line 109 of file wmalosslessdec.c.
| int8_t WmallDecodeCtx::channels_for_cur_subframe |
number of channels that contain the subframe
Definition at line 110 of file wmalosslessdec.c.
Referenced by decode_subframe().
| int8_t WmallDecodeCtx::channel_indexes_for_cur_subframe[WMALL_MAX_CHANNELS] |
Definition at line 111 of file wmalosslessdec.c.
Referenced by decode_subframe().
| WmallChannelCtx WmallDecodeCtx::channel[WMALL_MAX_CHANNELS] |
per channel data
Definition at line 113 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 117 of file wmalosslessdec.c.
Referenced by decode_subframe().
| uint8_t WmallDecodeCtx::do_ac_filter |
Definition at line 118 of file wmalosslessdec.c.
Referenced by decode_subframe().
| uint8_t WmallDecodeCtx::do_inter_ch_decorr |
Definition at line 119 of file wmalosslessdec.c.
Referenced by decode_channel_residues(), and decode_subframe().
| uint8_t WmallDecodeCtx::do_mclms |
Definition at line 120 of file wmalosslessdec.c.
Referenced by decode_subframe().
| uint8_t WmallDecodeCtx::do_lpc |
Definition at line 121 of file wmalosslessdec.c.
Referenced by decode_subframe().
| int8_t WmallDecodeCtx::acfilter_order |
Definition at line 123 of file wmalosslessdec.c.
Referenced by decode_ac_filter(), and revert_acfilter().
| int8_t WmallDecodeCtx::acfilter_scaling |
Definition at line 124 of file wmalosslessdec.c.
Referenced by decode_ac_filter(), and revert_acfilter().
| int64_t WmallDecodeCtx::acfilter_coeffs[16] |
Definition at line 125 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 126 of file wmalosslessdec.c.
Referenced by clear_codec_buffers(), and revert_acfilter().
| int8_t WmallDecodeCtx::mclms_order |
Definition at line 128 of file wmalosslessdec.c.
Referenced by decode_mclms(), mclms_predict(), mclms_update(), and reset_codec().
| int8_t WmallDecodeCtx::mclms_scaling |
Definition at line 129 of file wmalosslessdec.c.
Referenced by decode_mclms(), and mclms_predict().
| int16_t WmallDecodeCtx::mclms_coeffs[128] |
Definition at line 130 of file wmalosslessdec.c.
Referenced by clear_codec_buffers(), decode_mclms(), mclms_predict(), and mclms_update().
| int16_t WmallDecodeCtx::mclms_coeffs_cur[4] |
Definition at line 131 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 132 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 133 of file wmalosslessdec.c.
Referenced by clear_codec_buffers(), and mclms_update().
| int WmallDecodeCtx::mclms_recent |
Definition at line 134 of file wmalosslessdec.c.
Referenced by mclms_predict(), mclms_update(), and reset_codec().
| int WmallDecodeCtx::movave_scaling |
Definition at line 136 of file wmalosslessdec.c.
Referenced by decode_channel_residues(), and decode_subframe().
| int WmallDecodeCtx::quant_stepsize |
Definition at line 137 of file wmalosslessdec.c.
Referenced by decode_subframe().
| int WmallDecodeCtx::order |
Definition at line 140 of file wmalosslessdec.c.
Referenced by decode_cdlms(), decode_subframe(), flush(), lms_predict(), lms_update(), reset_codec(), use_high_update_speed(), and use_normal_update_speed().
| int WmallDecodeCtx::scaling |
Definition at line 141 of file wmalosslessdec.c.
Referenced by decode_cdlms(), and revert_cdlms().
| int WmallDecodeCtx::coefsend |
Definition at line 142 of file wmalosslessdec.c.
Referenced by decode_cdlms().
| int WmallDecodeCtx::bitsend |
Definition at line 143 of file wmalosslessdec.c.
Referenced by decode_cdlms().
| int16_t WmallDecodeCtx::coefs[MAX_ORDER] |
Definition at line 144 of file wmalosslessdec.c.
Referenced by clear_codec_buffers(), decode_cdlms(), lms_predict(), and lms_update().
| int16_t WmallDecodeCtx::lms_prevvalues[MAX_ORDER *2] |
Definition at line 145 of file wmalosslessdec.c.
Referenced by clear_codec_buffers(), lms_predict(), and lms_update().
| int16_t WmallDecodeCtx::lms_updates[MAX_ORDER *2] |
Definition at line 146 of file wmalosslessdec.c.
Referenced by clear_codec_buffers(), lms_update(), use_high_update_speed(), and use_normal_update_speed().
| int WmallDecodeCtx::recent |
Definition at line 147 of file wmalosslessdec.c.
Referenced by lms_predict(), lms_update(), reset_codec(), use_high_update_speed(), and use_normal_update_speed().
| struct { ... } WmallDecodeCtx::cdlms[WMALL_MAX_CHANNELS][9] |
| int WmallDecodeCtx::cdlms_ttl[WMALL_MAX_CHANNELS] |
Definition at line 150 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 152 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 154 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 155 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 157 of file wmalosslessdec.c.
Referenced by decode_channel_residues(), and reset_codec().
| int WmallDecodeCtx::transient_pos[WMALL_MAX_CHANNELS] |
Definition at line 158 of file wmalosslessdec.c.
Referenced by decode_channel_residues(), and reset_codec().
| int WmallDecodeCtx::seekable_tile |
Definition at line 159 of file wmalosslessdec.c.
Referenced by decode_channel_residues(), and decode_subframe().
| int WmallDecodeCtx::ave_sum[WMALL_MAX_CHANNELS] |
Definition at line 161 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 163 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 165 of file wmalosslessdec.c.
Referenced by clear_codec_buffers(), and decode_lpc().
| int WmallDecodeCtx::lpc_order |
Definition at line 166 of file wmalosslessdec.c.
Referenced by decode_lpc().
| int WmallDecodeCtx::lpc_scaling |
Definition at line 167 of file wmalosslessdec.c.
Referenced by decode_lpc().
| int WmallDecodeCtx::lpc_intbits |
Definition at line 168 of file wmalosslessdec.c.
Referenced by decode_lpc().
| int WmallDecodeCtx::channel_coeffs[WMALL_MAX_CHANNELS][WMALL_BLOCK_MAX_SIZE] |
Definition at line 170 of file wmalosslessdec.c.
Referenced by decode_subframe().
1.8.2
