diff options
Diffstat (limited to 'libavcodec/aacenc.h')
| -rw-r--r-- | libavcodec/aacenc.h | 80 |
1 files changed, 68 insertions, 12 deletions
diff --git a/libavcodec/aacenc.h b/libavcodec/aacenc.h index dec445ce34..63e789366f 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 */ @@ -23,6 +23,7 @@ #define AVCODEC_AACENC_H #include "libavutil/float_dsp.h" +#include "libavutil/lfg.h" #include "avcodec.h" #include "put_bits.h" @@ -30,8 +31,24 @@ #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 pred; + int mid_side; + int intensity_stereo; } AACEncOptions; struct AACEncContext; @@ -41,13 +58,38 @@ 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 AACCoefficientsEncoder ff_aac_coders[]; +typedef struct AACQuantizeBandCostCacheEntry { + float rd; + float energy; + int bits; + char cb; + char rtz; + uint16_t generation; +} AACQuantizeBandCostCacheEntry; + /** * AAC encoder context */ @@ -57,9 +99,12 @@ 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; + AVLFG lfg; ///< PRNG needed for PNS + float *planar_samples[8]; ///< saved preprocessed input + int profile; ///< copied from avctx + LPCContext lpc; ///< used by TNS int samplerate_index; ///< MPEG-4 samplerate index int channels; ///< channel count const uint8_t *chan_map; ///< channel configuration map @@ -68,18 +113,29 @@ typedef struct AACEncContext { FFPsyContext psy; struct FFPsyPreprocessContext* psypp; AACCoefficientsEncoder *coder; - int cur_channel; + int cur_channel; ///< current channel for coder context int last_frame; + 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 + struct { float *samples; } buffer; } AACEncContext; -extern float ff_aac_pow34sf_tab[428]; +void ff_aac_coder_init_mips(AACEncContext *c); +void ff_quantize_band_cost_cache_init(struct AACEncContext *s); + #endif /* AVCODEC_AACENC_H */ |