aptxenc.c File Reference

#include "config_components.h"
#include "libavutil/channel_layout.h"
#include "aptx.h"
#include "codec_internal.h"
#include "encode.h"

Go to the source code of this file.

Functions
static av_always_inline void	aptx_qmf_polyphase_analysis (FilterSignal signal[NB_FILTERS], const int32_t coeffs[NB_FILTERS][FILTER_TAPS], int shift, int32_t samples[NB_FILTERS], int32_t *low_subband_output, int32_t *high_subband_output)
static void	aptx_qmf_tree_analysis (QMFAnalysis *qmf, int32_t samples[4], int32_t subband_samples[4])
static av_always_inline int32_t	aptx_bin_search (int32_t value, int32_t factor, const int32_t *intervals, int32_t nb_intervals)
static void	aptx_quantize_difference (Quantize *quantize, int32_t sample_difference, int32_t dither, int32_t quantization_factor, ConstTables *tables)
static void	aptx_encode_channel (Channel *channel, int32_t samples[4], int hd)
static void	aptx_insert_sync (Channel channels[NB_CHANNELS], int32_t *idx)
static uint16_t	aptx_pack_codeword (Channel *channel)
static uint32_t	aptxhd_pack_codeword (Channel *channel)
static void	aptx_encode_samples (AptXContext *ctx, int32_t samples[NB_CHANNELS][4], uint8_t *output)
static int	aptx_encode_frame (AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
static av_cold int	aptx_close (AVCodecContext *avctx)

Function Documentation

aptx_qmf_polyphase_analysis()

static av_always_inline void aptx_qmf_polyphase_analysis ( FilterSignal  signal[NB_FILTERS], const int32_t  coeffs[NB_FILTERS][FILTER_TAPS], int  shift, int32_t  samples[NB_FILTERS], int32_t *  low_subband_output, int32_t *  high_subband_output  )

static

Definition at line 37 of file aptxenc.c.

Referenced by aptx_qmf_tree_analysis().

aptx_qmf_tree_analysis()

static void aptx_qmf_tree_analysis ( QMFAnalysis *  qmf, int32_t  samples[4], int32_t  subband_samples[4]  )

static

Definition at line 62 of file aptxenc.c.

Referenced by aptx_encode_channel().

aptx_bin_search()

static av_always_inline int32_t aptx_bin_search ( int32_t  value, int32_t  factor, const int32_t *  intervals, int32_t  nb_intervals  )

static

Definition at line 87 of file aptxenc.c.

Referenced by aptx_quantize_difference().

aptx_quantize_difference()

static void aptx_quantize_difference ( Quantize *  quantize, int32_t  sample_difference, int32_t  dither, int32_t  quantization_factor, ConstTables *  tables  )

static

Definition at line 100 of file aptxenc.c.

Referenced by aptx_encode_channel().

aptx_encode_channel()

static void aptx_encode_channel ( Channel *  channel, int32_t  samples[4], int  hd  )

static

Definition at line 140 of file aptxenc.c.

Referenced by aptx_encode_samples().

aptx_insert_sync()

static void aptx_insert_sync ( Channel  channels[NB_CHANNELS], int32_t *  idx  )

static

Definition at line 155 of file aptxenc.c.

Referenced by aptx_encode_samples().

aptx_pack_codeword()

static uint16_t aptx_pack_codeword ( Channel *  channel )

static

Definition at line 173 of file aptxenc.c.

Referenced by aptx_encode_samples().

aptxhd_pack_codeword()

static uint32_t aptxhd_pack_codeword ( Channel *  channel )

static

Definition at line 182 of file aptxenc.c.

Referenced by aptx_encode_samples().

aptx_encode_samples()

static void aptx_encode_samples ( AptXContext *  ctx, int32_t  samples[NB_CHANNELS][4], uint8_t *  output  )

static

Definition at line 191 of file aptxenc.c.

Referenced by aptx_encode_frame().

aptx_encode_frame()

static int aptx_encode_frame ( AVCodecContext *  avctx, AVPacket *  avpkt, const AVFrame *  frame, int *  got_packet_ptr  )

static

Definition at line 212 of file aptxenc.c.

aptx_close()

static av_cold int aptx_close ( AVCodecContext *  avctx )

static

Definition at line 240 of file aptxenc.c.