diff options
Diffstat (limited to 'libavcodec/aacenc.h')
-rw-r--r-- | libavcodec/aacenc.h | 369 |
1 files changed, 356 insertions, 13 deletions
diff --git a/libavcodec/aacenc.h b/libavcodec/aacenc.h index f77b200..5a015ca 100644 --- a/libavcodec/aacenc.h +++ b/libavcodec/aacenc.h @@ -2,20 +2,20 @@ * AAC encoder * Copyright (C) 2008 Konstantin Shishkov * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -30,8 +30,25 @@ #include "audio_frame_queue.h" #include "psymodel.h" +#include "lpc.h" + +typedef enum AACCoder { + AAC_CODER_ANMR = 0, + AAC_CODER_TWOLOOP, + AAC_CODER_FAST, + + AAC_CODER_NB, +}AACCoder; + typedef struct AACEncOptions { - int stereo_mode; + int coder; + int pns; + int tns; + int ltp; + int pce; + int pred; + int mid_side; + int intensity_stereo; } AACEncOptions; struct AACEncContext; @@ -41,13 +58,318 @@ typedef struct AACCoefficientsEncoder { SingleChannelElement *sce, const float lambda); void (*encode_window_bands_info)(struct AACEncContext *s, SingleChannelElement *sce, int win, int group_len, const float lambda); - void (*quantize_and_encode_band)(struct AACEncContext *s, PutBitContext *pb, const float *in, int size, - int scale_idx, int cb, const float lambda); - void (*search_for_ms)(struct AACEncContext *s, ChannelElement *cpe, const float lambda); + void (*quantize_and_encode_band)(struct AACEncContext *s, PutBitContext *pb, const float *in, float *out, int size, + int scale_idx, int cb, const float lambda, int rtz); + void (*encode_tns_info)(struct AACEncContext *s, SingleChannelElement *sce); + void (*encode_ltp_info)(struct AACEncContext *s, SingleChannelElement *sce, int common_window); + void (*encode_main_pred)(struct AACEncContext *s, SingleChannelElement *sce); + void (*adjust_common_pred)(struct AACEncContext *s, ChannelElement *cpe); + void (*adjust_common_ltp)(struct AACEncContext *s, ChannelElement *cpe); + void (*apply_main_pred)(struct AACEncContext *s, SingleChannelElement *sce); + void (*apply_tns_filt)(struct AACEncContext *s, SingleChannelElement *sce); + void (*update_ltp)(struct AACEncContext *s, SingleChannelElement *sce); + void (*ltp_insert_new_frame)(struct AACEncContext *s); + void (*set_special_band_scalefactors)(struct AACEncContext *s, SingleChannelElement *sce); + void (*search_for_pns)(struct AACEncContext *s, AVCodecContext *avctx, SingleChannelElement *sce); + void (*mark_pns)(struct AACEncContext *s, AVCodecContext *avctx, SingleChannelElement *sce); + void (*search_for_tns)(struct AACEncContext *s, SingleChannelElement *sce); + void (*search_for_ltp)(struct AACEncContext *s, SingleChannelElement *sce, int common_window); + void (*search_for_ms)(struct AACEncContext *s, ChannelElement *cpe); + void (*search_for_is)(struct AACEncContext *s, AVCodecContext *avctx, ChannelElement *cpe); + void (*search_for_pred)(struct AACEncContext *s, SingleChannelElement *sce); } AACCoefficientsEncoder; extern const AACCoefficientsEncoder ff_aac_coders[]; +typedef struct AACQuantizeBandCostCacheEntry { + float rd; + float energy; + int bits; + char cb; + char rtz; + uint16_t generation; +} AACQuantizeBandCostCacheEntry; + +typedef struct AACPCEInfo { + int64_t layout; + int num_ele[4]; ///< front, side, back, lfe + int pairing[3][8]; ///< front, side, back + int index[4][8]; ///< front, side, back, lfe + uint8_t config_map[16]; ///< configs the encoder's channel specific settings + uint8_t reorder_map[16]; ///< maps channels from lavc to aac order +} AACPCEInfo; + +/** + * List of PCE (Program Configuration Element) for the channel layouts listed + * in channel_layout.h + * + * For those wishing in the future to add other layouts: + * + * - num_ele: number of elements in each group of front, side, back, lfe channels + * (an element is of type SCE (single channel), CPE (channel pair) for + * the first 3 groups; and is LFE for LFE group). + * + * - pairing: 0 for an SCE element or 1 for a CPE; does not apply to LFE group + * + * - index: there are three independent indices for SCE, CPE and LFE; + * they are incremented irrespective of the group to which the element belongs; + * they are not reset when going from one group to another + * + * Example: for 7.0 channel layout, + * .pairing = { { 1, 0 }, { 1 }, { 1 }, }, (3 CPE and 1 SCE in front group) + * .index = { { 0, 0 }, { 1 }, { 2 }, }, + * (index is 0 for the single SCE but goes from 0 to 2 for the CPEs) + * + * The index order impacts the channel ordering. But is otherwise arbitrary + * (the sequence could have been 2, 0, 1 instead of 0, 1, 2). + * + * Spec allows for discontinuous indices, e.g. if one has a total of two SCE, + * SCE.0 SCE.15 is OK per spec; BUT it won't be decoded by our AAC decoder + * which at this time requires that indices fully cover some range starting + * from 0 (SCE.1 SCE.0 is OK but not SCE.0 SCE.15). + * + * - config_map: total number of elements and their types. Beware, the way the + * types are ordered impacts the final channel ordering. + * + * - reorder_map: reorders the channels. + * + */ +static const AACPCEInfo aac_pce_configs[] = { + { + .layout = AV_CH_LAYOUT_MONO, + .num_ele = { 1, 0, 0, 0 }, + .pairing = { { 0 }, }, + .index = { { 0 }, }, + .config_map = { 1, TYPE_SCE, }, + .reorder_map = { 0 }, + }, + { + .layout = AV_CH_LAYOUT_STEREO, + .num_ele = { 1, 0, 0, 0 }, + .pairing = { { 1 }, }, + .index = { { 0 }, }, + .config_map = { 1, TYPE_CPE, }, + .reorder_map = { 0, 1 }, + }, + { + .layout = AV_CH_LAYOUT_2POINT1, + .num_ele = { 1, 0, 0, 1 }, + .pairing = { { 1 }, }, + .index = { { 0 },{ 0 },{ 0 },{ 0 } }, + .config_map = { 2, TYPE_CPE, TYPE_LFE }, + .reorder_map = { 0, 1, 2 }, + }, + { + .layout = AV_CH_LAYOUT_2_1, + .num_ele = { 1, 0, 1, 0 }, + .pairing = { { 1 },{ 0 },{ 0 } }, + .index = { { 0 },{ 0 },{ 0 }, }, + .config_map = { 2, TYPE_CPE, TYPE_SCE }, + .reorder_map = { 0, 1, 2 }, + }, + { + .layout = AV_CH_LAYOUT_SURROUND, + .num_ele = { 2, 0, 0, 0 }, + .pairing = { { 1, 0 }, }, + .index = { { 0, 0 }, }, + .config_map = { 2, TYPE_CPE, TYPE_SCE, }, + .reorder_map = { 0, 1, 2 }, + }, + { + .layout = AV_CH_LAYOUT_3POINT1, + .num_ele = { 2, 0, 0, 1 }, + .pairing = { { 1, 0 }, }, + .index = { { 0, 0 }, { 0 }, { 0 }, { 0 }, }, + .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_LFE }, + .reorder_map = { 0, 1, 2, 3 }, + }, + { + .layout = AV_CH_LAYOUT_4POINT0, + .num_ele = { 2, 0, 1, 0 }, + .pairing = { { 1, 0 }, { 0 }, { 0 }, }, + .index = { { 0, 0 }, { 0 }, { 1 } }, + .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_SCE }, + .reorder_map = { 0, 1, 2, 3 }, + }, + { + .layout = AV_CH_LAYOUT_4POINT1, + .num_ele = { 2, 1, 1, 0 }, + .pairing = { { 1, 0 }, { 0 }, { 0 }, }, + .index = { { 0, 0 }, { 1 }, { 2 }, { 0 } }, + .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_SCE }, + .reorder_map = { 0, 1, 2, 3, 4 }, + }, + { + .layout = AV_CH_LAYOUT_2_2, + .num_ele = { 1, 1, 0, 0 }, + .pairing = { { 1 }, { 1 }, }, + .index = { { 0 }, { 1 }, }, + .config_map = { 2, TYPE_CPE, TYPE_CPE }, + .reorder_map = { 0, 1, 2, 3 }, + }, + { + .layout = AV_CH_LAYOUT_QUAD, + .num_ele = { 1, 0, 1, 0 }, + .pairing = { { 1 }, { 0 }, { 1 }, }, + .index = { { 0 }, { 0 }, { 1 } }, + .config_map = { 2, TYPE_CPE, TYPE_CPE }, + .reorder_map = { 0, 1, 2, 3 }, + }, + { + .layout = AV_CH_LAYOUT_5POINT0, + .num_ele = { 2, 1, 0, 0 }, + .pairing = { { 1, 0 }, { 1 }, }, + .index = { { 0, 0 }, { 1 } }, + .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_CPE }, + .reorder_map = { 0, 1, 2, 3, 4 }, + }, + { + .layout = AV_CH_LAYOUT_5POINT1, + .num_ele = { 2, 1, 1, 0 }, + .pairing = { { 1, 0 }, { 0 }, { 1 }, }, + .index = { { 0, 0 }, { 1 }, { 1 } }, + .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE }, + .reorder_map = { 0, 1, 2, 3, 4, 5 }, + }, + { + .layout = AV_CH_LAYOUT_5POINT0_BACK, + .num_ele = { 2, 0, 1, 0 }, + .pairing = { { 1, 0 }, { 0 }, { 1 } }, + .index = { { 0, 0 }, { 0 }, { 1 } }, + .config_map = { 3, TYPE_CPE, TYPE_SCE, TYPE_CPE }, + .reorder_map = { 0, 1, 2, 3, 4 }, + }, + { + .layout = AV_CH_LAYOUT_5POINT1_BACK, + .num_ele = { 2, 1, 1, 0 }, + .pairing = { { 1, 0 }, { 0 }, { 1 }, }, + .index = { { 0, 0 }, { 1 }, { 1 } }, + .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE }, + .reorder_map = { 0, 1, 2, 3, 4, 5 }, + }, + { + .layout = AV_CH_LAYOUT_6POINT0, + .num_ele = { 2, 1, 1, 0 }, + .pairing = { { 1, 0 }, { 1 }, { 0 }, }, + .index = { { 0, 0 }, { 1 }, { 1 } }, + .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE }, + .reorder_map = { 0, 1, 2, 3, 4, 5 }, + }, + { + .layout = AV_CH_LAYOUT_6POINT0_FRONT, + .num_ele = { 2, 1, 0, 0 }, + .pairing = { { 1, 1 }, { 1 } }, + .index = { { 1, 0 }, { 2 }, }, + .config_map = { 3, TYPE_CPE, TYPE_CPE, TYPE_CPE, }, + .reorder_map = { 0, 1, 2, 3, 4, 5 }, + }, + { + .layout = AV_CH_LAYOUT_HEXAGONAL, + .num_ele = { 2, 0, 2, 0 }, + .pairing = { { 1, 0 },{ 0 },{ 1, 0 }, }, + .index = { { 0, 0 },{ 0 },{ 1, 1 } }, + .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, }, + .reorder_map = { 0, 1, 2, 3, 4, 5 }, + }, + { + .layout = AV_CH_LAYOUT_6POINT1, + .num_ele = { 2, 1, 2, 0 }, + .pairing = { { 1, 0 },{ 0 },{ 1, 0 }, }, + .index = { { 0, 0 },{ 1 },{ 1, 2 } }, + .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6 }, + }, + { + .layout = AV_CH_LAYOUT_6POINT1_BACK, + .num_ele = { 2, 1, 2, 0 }, + .pairing = { { 1, 0 }, { 0 }, { 1, 0 }, }, + .index = { { 0, 0 }, { 1 }, { 1, 2 } }, + .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6 }, + }, + { + .layout = AV_CH_LAYOUT_6POINT1_FRONT, + .num_ele = { 2, 1, 2, 0 }, + .pairing = { { 1, 0 }, { 0 }, { 1, 0 }, }, + .index = { { 0, 0 }, { 1 }, { 1, 2 } }, + .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_SCE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6 }, + }, + { + .layout = AV_CH_LAYOUT_7POINT0, + .num_ele = { 2, 1, 1, 0 }, + .pairing = { { 1, 0 }, { 1 }, { 1 }, }, + .index = { { 0, 0 }, { 1 }, { 2 }, }, + .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6 }, + }, + { + .layout = AV_CH_LAYOUT_7POINT0_FRONT, + .num_ele = { 2, 1, 1, 0 }, + .pairing = { { 1, 0 }, { 1 }, { 1 }, }, + .index = { { 0, 0 }, { 1 }, { 2 }, }, + .config_map = { 4, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6 }, + }, + { + .layout = AV_CH_LAYOUT_7POINT1, + .num_ele = { 2, 1, 2, 0 }, + .pairing = { { 1, 0 }, { 0 }, { 1, 1 }, }, + .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } }, + .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_CPE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 }, + }, + { + .layout = AV_CH_LAYOUT_7POINT1_WIDE, + .num_ele = { 2, 1, 2, 0 }, + .pairing = { { 1, 0 }, { 0 },{ 1, 1 }, }, + .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } }, + .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_CPE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 }, + }, + { + .layout = AV_CH_LAYOUT_7POINT1_WIDE_BACK, + .num_ele = { 2, 1, 2, 0 }, + .pairing = { { 1, 0 }, { 0 }, { 1, 1 }, }, + .index = { { 0, 0 }, { 1 }, { 1, 2 }, { 0 } }, + .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_SCE, TYPE_CPE, TYPE_CPE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 }, + }, + { + .layout = AV_CH_LAYOUT_OCTAGONAL, + .num_ele = { 2, 1, 2, 0 }, + .pairing = { { 1, 0 }, { 1 }, { 1, 0 }, }, + .index = { { 0, 0 }, { 1 }, { 2, 1 } }, + .config_map = { 5, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_SCE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7 }, + }, + { /* Meant for order 2/mixed ambisonics */ + .layout = AV_CH_LAYOUT_OCTAGONAL | AV_CH_TOP_CENTER, + .num_ele = { 2, 2, 2, 0 }, + .pairing = { { 1, 0 }, { 1, 0 }, { 1, 0 }, }, + .index = { { 0, 0 }, { 1, 1 }, { 2, 2 } }, + .config_map = { 6, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8 }, + }, + { /* Meant for order 2/mixed ambisonics */ + .layout = AV_CH_LAYOUT_6POINT0_FRONT | AV_CH_BACK_CENTER | + AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT | AV_CH_TOP_CENTER, + .num_ele = { 2, 2, 2, 0 }, + .pairing = { { 1, 1 }, { 1, 0 }, { 1, 0 }, }, + .index = { { 0, 1 }, { 2, 0 }, { 3, 1 } }, + .config_map = { 6, TYPE_CPE, TYPE_CPE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }, + }, + { + .layout = AV_CH_LAYOUT_HEXADECAGONAL, + .num_ele = { 4, 2, 4, 0 }, + .pairing = { { 1, 0, 1, 0 }, { 1, 1 }, { 1, 0, 1, 0 }, }, + .index = { { 0, 0, 1, 1 }, { 2, 3 }, { 4, 2, 5, 3 } }, + .config_map = { 10, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_CPE, TYPE_SCE, TYPE_CPE, TYPE_SCE }, + .reorder_map = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }, + }, +}; + /** * AAC encoder context */ @@ -57,29 +379,50 @@ typedef struct AACEncContext { PutBitContext pb; FFTContext mdct1024; ///< long (1024 samples) frame transform context FFTContext mdct128; ///< short (128 samples) frame transform context - AVFloatDSPContext fdsp; - float *planar_samples[6]; ///< saved preprocessed input + AVFloatDSPContext *fdsp; + AACPCEInfo pce; ///< PCE data, if needed + float *planar_samples[16]; ///< saved preprocessed input + int profile; ///< copied from avctx + int needs_pce; ///< flag for non-standard layout + LPCContext lpc; ///< used by TNS int samplerate_index; ///< MPEG-4 samplerate index int channels; ///< channel count + const uint8_t *reorder_map; ///< lavc to aac reorder map const uint8_t *chan_map; ///< channel configuration map ChannelElement *cpe; ///< channel elements FFPsyContext psy; struct FFPsyPreprocessContext* psypp; const AACCoefficientsEncoder *coder; - int cur_channel; - int last_frame; + int cur_channel; ///< current channel for coder context + int random_state; float lambda; + int last_frame_pb_count; ///< number of bits for the previous frame + float lambda_sum; ///< sum(lambda), for Qvg reporting + int lambda_count; ///< count(lambda), for Qvg reporting + enum RawDataBlockType cur_type; ///< channel group type cur_channel belongs to + AudioFrameQueue afq; DECLARE_ALIGNED(16, int, qcoefs)[96]; ///< quantized coefficients DECLARE_ALIGNED(32, float, scoefs)[1024]; ///< scaled coefficients + uint16_t quantize_band_cost_cache_generation; + AACQuantizeBandCostCacheEntry quantize_band_cost_cache[256][128]; ///< memoization area for quantize_band_cost + + void (*abs_pow34)(float *out, const float *in, const int size); + void (*quant_bands)(int *out, const float *in, const float *scaled, + int size, int is_signed, int maxval, const float Q34, + const float rounding); + struct { float *samples; } buffer; } AACEncContext; -extern float ff_aac_pow34sf_tab[428]; +void ff_aac_dsp_init_x86(AACEncContext *s); +void ff_aac_coder_init_mips(AACEncContext *c); +void ff_quantize_band_cost_cache_init(struct AACEncContext *s); + #endif /* AVCODEC_AACENC_H */ |