aptxenc.c File Reference

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

Go to the source code of this file.

Data Structures
struct	AptXEncContext

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)
static av_cold int	aptx_encode_init (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 44 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 69 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 94 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 107 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 147 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 162 of file aptxenc.c.

Referenced by aptx_encode_samples().

aptx_pack_codeword()

static uint16_t aptx_pack_codeword ( Channel * channel )

static

Definition at line 180 of file aptxenc.c.

Referenced by aptx_encode_samples().

aptxhd_pack_codeword()

static uint32_t aptxhd_pack_codeword ( Channel * channel )

static

Definition at line 189 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 198 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 219 of file aptxenc.c.

aptx_close()

static av_cold int aptx_close ( AVCodecContext * avctx )

static

Definition at line 251 of file aptxenc.c.

aptx_encode_init()

static av_cold int aptx_encode_init ( AVCodecContext * avctx )

static

Definition at line 258 of file aptxenc.c.