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FFmpeg
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G723.1 compatible decoder data tables. More...
#include <stdint.h>
Go to the source code of this file.
Data Structures | |
| struct | G723_1_Subframe |
| G723.1 unpacked data subframe. More... | |
| struct | PPFParam |
| Pitch postfilter parameters. More... | |
| struct | HFParam |
| Harmonic filter parameters. More... | |
| struct | FCBParam |
| Optimized fixed codebook excitation parameters. More... | |
Macros | |
| #define | SUBFRAMES 4 |
| #define | SUBFRAME_LEN 60 |
| #define | FRAME_LEN (SUBFRAME_LEN << 2) |
| #define | HALF_FRAME_LEN (FRAME_LEN / 2) |
| #define | LPC_FRAME (HALF_FRAME_LEN + SUBFRAME_LEN) |
| #define | LPC_ORDER 10 |
| #define | LSP_BANDS 3 |
| #define | LSP_CB_SIZE 256 |
| #define | PITCH_MIN 18 |
| #define | PITCH_MAX (PITCH_MIN + 127) |
| #define | PITCH_ORDER 5 |
| #define | GRID_SIZE 2 |
| #define | PULSE_MAX 6 |
| #define | GAIN_LEVELS 24 |
| #define | COS_TBL_SIZE 512 |
Typedefs | |
| typedef enum FrameType | FrameType |
| G723.1 frame types. More... | |
| typedef enum Rate | Rate |
| typedef struct G723_1_Subframe | G723_1_Subframe |
| G723.1 unpacked data subframe. More... | |
Enumerations | |
| enum | FrameType { ACTIVE_FRAME, SID_FRAME, UNTRANSMITTED_FRAME, INTRA_FRAME = 0, INTER_FRAME, SKIP_FRAME, FT_SHORT = 0, FT_MEDIUM, FT_LONG, FT_PPC } |
| G723.1 frame types. More... | |
| enum | Rate { RATE_6300, RATE_5300 } |
Variables | |
| static const uint8_t | frame_size [4] = { 24, 20, 4, 1 } |
| static const int16_t | ppf_gain_weight [2] = {0x1800, 0x2000} |
| Postfilter gain weighting factors scaled by 2^15. More... | |
| static const int16_t | dc_lsp [LPC_ORDER] |
| LSP DC component. More... | |
| static const int16_t | cos_tab [COS_TBL_SIZE+1] |
| Cosine table scaled by 2^14. More... | |
| static const int16_t | lsp_band0 [LSP_CB_SIZE][3] |
| LSP VQ tables. More... | |
| static const int16_t | lsp_band1 [LSP_CB_SIZE][3] |
| static const int16_t | lsp_band2 [LSP_CB_SIZE][4] |
| static const int32_t | combinatorial_table [PULSE_MAX][SUBFRAME_LEN/GRID_SIZE] |
| Used for the coding/decoding of the pulses positions for the MP-MLQ codebook. More... | |
| static const int16_t | pitch_contrib [340] |
| static const int8_t | pulses [4] = {6, 5, 6, 5} |
| Number of non-zero pulses in the MP-MLQ excitation. More... | |
| static const int32_t | max_pos [4] = {593775, 142506, 593775, 142506} |
| Size of the MP-MLQ fixed excitation codebooks. More... | |
| static const int16_t | fixed_cb_gain [GAIN_LEVELS] |
| static const int16_t | adaptive_cb_gain85 [85 *20] |
| static const int16_t | adaptive_cb_gain170 [170 *20] |
| static const int16_t | postfilter_tbl [2][LPC_ORDER] |
| 0.65^i (Zero part) and 0.75^i (Pole part) scaled by 2^15 More... | |
| static const int16_t | hamming_window [LPC_FRAME] |
| Hamming window coefficients scaled by 2^15. More... | |
| static const int16_t | binomial_window [LPC_ORDER] |
| Binomial window coefficients scaled by 2^15. More... | |
| static const int16_t | bandwidth_expand [LPC_ORDER] |
| 0.994^i scaled by 2^15 More... | |
| static const int16_t | percept_flt_tbl [2][LPC_ORDER] |
| 0.5^i scaled by 2^15 More... | |
| static const int | cng_adaptive_cb_lag [4] = { 1, 0, 1, 3 } |
| static const int | cng_filt [4] = { 273, 998, 499, 333 } |
| static const int | cng_bseg [3] = { 2048, 18432, 231233 } |
Detailed Description
G723.1 compatible decoder data tables.
Definition in file g723_1_data.h.
Macro Definition Documentation
| #define COS_TBL_SIZE 512 |
Definition at line 47 of file g723_1_data.h.
| #define FRAME_LEN (SUBFRAME_LEN << 2) |
Definition at line 35 of file g723_1_data.h.
Referenced by autocorr_max(), comp_interp_index(), formant_postfilter(), g723_1_decode_frame(), generate_noise(), and residual_interp().
| #define GAIN_LEVELS 24 |
Definition at line 46 of file g723_1_data.h.
Referenced by unpack_bitstream().
| #define GRID_SIZE 2 |
Definition at line 44 of file g723_1_data.h.
Referenced by gen_fcb_excitation().
| #define HALF_FRAME_LEN (FRAME_LEN / 2) |
Definition at line 36 of file g723_1_data.h.
| #define LPC_FRAME (HALF_FRAME_LEN + SUBFRAME_LEN) |
Definition at line 37 of file g723_1_data.h.
| #define LPC_ORDER 10 |
Definition at line 38 of file g723_1_data.h.
Referenced by adaptive_cb_search(), comp_interp_index(), comp_ppf_coeff(), ff_eval_coefs(), ff_eval_refl(), ff_int_to_int16(), ff_interp(), ff_rms(), ff_subblock_synthesis(), fixed_cb_search(), formant_postfilter(), g723_1_decode_frame(), g723_1_decode_init(), generate_noise(), get_match_score(), inverse_quant(), lsp2lpc(), lsp_interpolate(), ra144_decode_frame(), ra144_encode_frame(), ra144_encode_init(), and ra144_encode_subblock().
| #define LSP_BANDS 3 |
Definition at line 39 of file g723_1_data.h.
| #define LSP_CB_SIZE 256 |
Definition at line 40 of file g723_1_data.h.
| #define PITCH_MAX (PITCH_MIN + 127) |
Definition at line 42 of file g723_1_data.h.
Referenced by autocorr_max(), comp_interp_index(), ff_sipr_decode_frame_16k(), g723_1_decode_frame(), generate_noise(), get_residual(), and residual_interp().
| #define PITCH_MIN 18 |
Definition at line 41 of file g723_1_data.h.
Referenced by ff_sipr_decode_frame_16k(), and unpack_bitstream().
| #define PITCH_ORDER 5 |
Definition at line 43 of file g723_1_data.h.
Referenced by gen_acb_excitation(), and get_residual().
| #define PULSE_MAX 6 |
Definition at line 45 of file g723_1_data.h.
Referenced by gen_fcb_excitation().
| #define SUBFRAME_LEN 60 |
Definition at line 34 of file g723_1_data.h.
Referenced by comp_interp_index(), comp_ppf_coeff(), formant_postfilter(), g723_1_decode_frame(), gain_scale(), gen_acb_excitation(), gen_dirac_train(), gen_fcb_excitation(), generate_noise(), get_residual(), and unpack_bitstream().
| #define SUBFRAMES 4 |
Definition at line 33 of file g723_1_data.h.
Typedef Documentation
| typedef struct G723_1_Subframe G723_1_Subframe |
G723.1 unpacked data subframe.
Enumeration Type Documentation
| enum FrameType |
G723.1 frame types.
Definition at line 52 of file g723_1_data.h.
| enum Rate |
| Enumerator | |
|---|---|
| RATE_6300 | |
| RATE_5300 | |
Definition at line 60 of file g723_1_data.h.
Variable Documentation
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Definition at line 837 of file g723_1_data.h.
Referenced by gen_acb_excitation().
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Definition at line 621 of file g723_1_data.h.
Referenced by gen_acb_excitation().
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0.994^i scaled by 2^15
Definition at line 1309 of file g723_1_data.h.
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Binomial window coefficients scaled by 2^15.
Definition at line 1302 of file g723_1_data.h.
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Definition at line 1323 of file g723_1_data.h.
Referenced by generate_noise().
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Definition at line 1327 of file g723_1_data.h.
Referenced by estimate_sid_gain().
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Definition at line 1325 of file g723_1_data.h.
Referenced by estimate_sid_gain().
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Used for the coding/decoding of the pulses positions for the MP-MLQ codebook.
Definition at line 515 of file g723_1_data.h.
Referenced by gen_fcb_excitation().
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Cosine table scaled by 2^14.
Definition at line 131 of file g723_1_data.h.
Referenced by eval_lpcenv_or_interp(), and lsp2lpc().
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LSP DC component.
Definition at line 115 of file g723_1_data.h.
Referenced by g723_1_decode_init(), and inverse_quant().
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Definition at line 615 of file g723_1_data.h.
Referenced by g723_1_decode_frame(), and gen_fcb_excitation().
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Definition at line 58 of file g723_1_data.h.
Referenced by alac_entropy_coder(), alac_linear_predictor(), amr_handle_packet(), av_buffersink_set_frame_size(), avpriv_mpegaudio_decode_header(), build_feed_streams(), build_frame_code(), celt_header(), compute_pkt_fields2(), CustomSource::CustomSource(), decode_frame(), decode_packet(), dfa_read_packet(), do_video_out(), encode_frame(), escape124_decode_frame(), ff_compute_frame_duration(), ff_get_audio_frame_size(), ff_psy_preprocess(), ff_sipr_decode_frame_16k(), ff_vbv_update(), find_expected_header(), flic_decode_frame_15_16BPP(), flic_decode_frame_8BPP(), g723_1_decode_frame(), get_audio_frame(), libopus_encode_init(), lmlm4_read_packet(), main(), mp3_header_decompress(), msrle_decode_pal4(), mxf_parse_dnxhd_frame(), mxf_parse_dv_frame(), mxf_write_d10_audio_packet(), new_subtitle_stream(), new_video_stream(), opus_packet(), prores_encode_frame(), qdm2_decode(), read_packet(), return_stored_frame(), rpl_read_packet(), rtp_send_ilbc(), rtp_write_header(), s302m_decode_frame(), s302m_parse_frame_header(), sdl_audio_callback(), smacker_read_packet(), store_packet(), str_probe(), str_read_packet(), swf_write_video(), vc1t_read_packet(), wavpack_decode_frame(), and xmv_fetch_video_packet().
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Hamming window coefficients scaled by 2^15.
Definition at line 1278 of file g723_1_data.h.
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Definition at line 291 of file g723_1_data.h.
Referenced by inverse_quant().
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Definition at line 380 of file g723_1_data.h.
Referenced by inverse_quant().
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Size of the MP-MLQ fixed excitation codebooks.
Definition at line 613 of file g723_1_data.h.
Referenced by gen_fcb_excitation().
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0.5^i scaled by 2^15
Definition at line 1316 of file g723_1_data.h.
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Definition at line 559 of file g723_1_data.h.
Referenced by gen_fcb_excitation().
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0.65^i (Zero part) and 0.75^i (Pole part) scaled by 2^15
Definition at line 1268 of file g723_1_data.h.
Referenced by formant_postfilter().
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Postfilter gain weighting factors scaled by 2^15.
Definition at line 110 of file g723_1_data.h.
Referenced by comp_ppf_gains().
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Number of non-zero pulses in the MP-MLQ excitation.
Definition at line 608 of file g723_1_data.h.
Referenced by gen_fcb_excitation(), generate_noise(), and synth_block_fcb_acb().
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