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FFmpeg
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AAC encoder context. More...
#include <aacenc.h>
Data Fields | |
| AVClass * | av_class |
| AACEncOptions | options |
| encoding options More... | |
| PutBitContext | pb |
| FFTContext | mdct1024 |
| long (1024 samples) frame transform context More... | |
| FFTContext | mdct128 |
| short (128 samples) frame transform context More... | |
| AVFloatDSPContext * | fdsp |
| AVLFG | lfg |
| PRNG needed for PNS. More... | |
| float * | planar_samples [8] |
| saved preprocessed input More... | |
| int | profile |
| copied from avctx More... | |
| LPCContext | lpc |
| used by TNS More... | |
| int | samplerate_index |
| MPEG-4 samplerate index. More... | |
| int | channels |
| channel count More... | |
| const uint8_t * | chan_map |
| channel configuration map More... | |
| ChannelElement * | cpe |
| channel elements More... | |
| FFPsyContext | psy |
| struct FFPsyPreprocessContext * | psypp |
| AACCoefficientsEncoder * | coder |
| int | cur_channel |
| current channel for coder context More... | |
| int | last_frame |
| int | random_state |
| float | lambda |
| int | last_frame_pb_count |
| number of bits for the previous frame More... | |
| float | lambda_sum |
| sum(lambda), for Qvg reporting More... | |
| int | lambda_count |
| count(lambda), for Qvg reporting More... | |
| enum RawDataBlockType | cur_type |
| channel group type cur_channel belongs to More... | |
| AudioFrameQueue | afq |
| int | qcoefs [96] |
| quantized coefficients More... | |
| float | scoefs [1024] |
| scaled coefficients More... | |
| AACQuantizeBandCostCacheEntry | quantize_band_cost_cache [256][128] |
| memoization area for quantize_band_cost More... | |
| struct { | |
| float * samples | |
| } | buffer |
| AACEncOptions AACEncContext::options |
encoding options
Definition at line 98 of file aacenc.h.
Referenced by aac_encode_frame(), aac_encode_init(), ff_aac_coder_init_mips(), and search_for_quantizers_twoloop().
| PutBitContext AACEncContext::pb |
Definition at line 99 of file aacenc.h.
Referenced by aac_encode_frame(), codebook_trellis_rate(), encode_individual_channel(), encode_pulses(), encode_scale_factors(), encode_spectral_coeffs(), encode_window_bands_info(), ff_aac_encode_ltp_info(), ff_aac_encode_main_pred(), ff_aac_encode_tns_info(), put_bitstream_info(), and put_ics_info().
| FFTContext AACEncContext::mdct1024 |
long (1024 samples) frame transform context
Definition at line 100 of file aacenc.h.
Referenced by aac_encode_end(), aac_encode_frame(), apply_window_and_mdct(), and dsp_init().
| FFTContext AACEncContext::mdct128 |
short (128 samples) frame transform context
Definition at line 101 of file aacenc.h.
Referenced by aac_encode_end(), apply_window_and_mdct(), and dsp_init().
| AVFloatDSPContext* AACEncContext::fdsp |
Definition at line 102 of file aacenc.h.
Referenced by aac_encode_end(), aac_encode_frame(), apply_window_and_mdct(), dsp_init(), and search_for_pns().
| AVLFG AACEncContext::lfg |
PRNG needed for PNS.
Definition at line 103 of file aacenc.h.
Referenced by aac_encode_init(), and search_for_pns().
| float* AACEncContext::planar_samples[8] |
saved preprocessed input
Definition at line 104 of file aacenc.h.
Referenced by aac_encode_frame(), alloc_buffers(), copy_input_samples(), ff_aac_ltp_insert_new_frame(), and ff_aac_update_ltp().
| int AACEncContext::profile |
copied from avctx
Definition at line 106 of file aacenc.h.
Referenced by aac_encode_init(), ff_aac_encode_ltp_info(), ff_aac_encode_main_pred(), ff_aac_search_for_tns(), ff_aac_update_ltp(), and put_audio_specific_config().
| LPCContext AACEncContext::lpc |
used by TNS
Definition at line 107 of file aacenc.h.
Referenced by aac_encode_end(), aac_encode_init(), ff_aac_apply_tns(), and ff_aac_search_for_tns().
| int AACEncContext::samplerate_index |
MPEG-4 samplerate index.
Definition at line 108 of file aacenc.h.
Referenced by aac_encode_frame(), aac_encode_init(), ff_aac_adjust_common_pred(), ff_aac_apply_main_pred(), ff_aac_encode_main_pred(), ff_aac_search_for_pred(), ff_aac_search_for_tns(), and put_audio_specific_config().
| int AACEncContext::channels |
channel count
Definition at line 109 of file aacenc.h.
Referenced by aac_encode_frame(), aac_encode_init(), alloc_buffers(), copy_input_samples(), and put_audio_specific_config().
| const uint8_t* AACEncContext::chan_map |
channel configuration map
Definition at line 110 of file aacenc.h.
Referenced by aac_encode_frame(), aac_encode_init(), alloc_buffers(), and ff_aac_ltp_insert_new_frame().
| ChannelElement* AACEncContext::cpe |
channel elements
Definition at line 112 of file aacenc.h.
Referenced by aac_encode_end(), aac_encode_frame(), alloc_buffers(), and ff_aac_ltp_insert_new_frame().
| FFPsyContext AACEncContext::psy |
Definition at line 113 of file aacenc.h.
Referenced by aac_encode_end(), aac_encode_frame(), aac_encode_init(), encode_window_bands_info(), ff_aac_search_for_ltp(), ff_aac_search_for_pred(), ff_aac_search_for_tns(), mark_pns(), search_for_ms(), search_for_pns(), search_for_quantizers_anmr(), search_for_quantizers_fast(), and search_for_quantizers_twoloop().
| struct FFPsyPreprocessContext* AACEncContext::psypp |
Definition at line 114 of file aacenc.h.
Referenced by aac_encode_end(), aac_encode_frame(), and aac_encode_init().
| AACCoefficientsEncoder* AACEncContext::coder |
Definition at line 115 of file aacenc.h.
Referenced by aac_encode_frame(), aac_encode_init(), encode_band_info(), encode_individual_channel(), encode_spectral_coeffs(), and ff_aac_coder_init_mips().
| int AACEncContext::cur_channel |
current channel for coder context
Definition at line 116 of file aacenc.h.
Referenced by aac_encode_frame(), encode_window_bands_info(), ff_aac_search_for_ltp(), ff_aac_search_for_pred(), ff_aac_search_for_tns(), ff_aac_update_ltp(), mark_pns(), search_for_ms(), search_for_pns(), search_for_quantizers_anmr(), search_for_quantizers_fast(), and search_for_quantizers_twoloop().
| int AACEncContext::last_frame |
Definition at line 117 of file aacenc.h.
Referenced by aac_encode_frame().
| float AACEncContext::lambda |
Definition at line 119 of file aacenc.h.
Referenced by aac_encode_frame(), aac_encode_init(), encode_band_info(), encode_spectral_coeffs(), ff_aac_search_for_is(), ff_aac_search_for_ltp(), ff_aac_search_for_pred(), mark_pns(), search_for_ms(), and search_for_pns().
| int AACEncContext::last_frame_pb_count |
number of bits for the previous frame
Definition at line 120 of file aacenc.h.
Referenced by aac_encode_frame(), and aac_encode_init().
| float AACEncContext::lambda_sum |
sum(lambda), for Qvg reporting
Definition at line 121 of file aacenc.h.
Referenced by aac_encode_end(), and aac_encode_frame().
| int AACEncContext::lambda_count |
count(lambda), for Qvg reporting
Definition at line 122 of file aacenc.h.
Referenced by aac_encode_end(), and aac_encode_frame().
| enum RawDataBlockType AACEncContext::cur_type |
channel group type cur_channel belongs to
Definition at line 123 of file aacenc.h.
Referenced by aac_encode_frame(), and search_for_quantizers_twoloop().
| AudioFrameQueue AACEncContext::afq |
Definition at line 125 of file aacenc.h.
Referenced by aac_encode_end(), aac_encode_frame(), and aac_encode_init().
| int AACEncContext::qcoefs[96] |
quantized coefficients
Definition at line 126 of file aacenc.h.
Referenced by quantize_and_encode_band_cost_template().
| float AACEncContext::scoefs[1024] |
scaled coefficients
Definition at line 127 of file aacenc.h.
Referenced by codebook_trellis_rate(), encode_window_bands_info(), ff_aac_search_for_ltp(), ff_aac_search_for_pred(), quantize_and_encode_band_cost_template(), search_for_ms(), search_for_pns(), search_for_quantizers_anmr(), and search_for_quantizers_twoloop().
| AACQuantizeBandCostCacheEntry AACEncContext::quantize_band_cost_cache[256][128] |
memoization area for quantize_band_cost
Definition at line 129 of file aacenc.h.
Referenced by ff_quantize_band_cost_cache_init(), and quantize_band_cost_cached().
| float* AACEncContext::samples |
Definition at line 132 of file aacenc.h.
Referenced by aac_encode_end(), and alloc_buffers().
| struct { ... } AACEncContext::buffer |
Referenced by aac_encode_end(), and alloc_buffers().
1.8.6