#include "libavutil/float_dsp.h"
#include "libavutil/thread.h"
#include "libavutil/mem.h"
#include "internal.h"
#include "get_bits.h"
#include "put_bits.h"
#include "dolby_e.h"
#include "fft.h"

Functions
static int	skip_input (DBEContext *s, int nb_words)

static int	parse_key (DBEContext *s)

static int	convert_input (DBEContext *s, int nb_words, int key)

static int	parse_metadata (DBEContext *s)

static int	parse_metadata_ext (DBEContext *s)

static void	unbias_exponents (DBEContext s, DBEChannel c, DBEGroup *g)

static int	parse_exponents (DBEContext s, DBEChannel c)

static int	log_add (int a, int b)

static void	calc_lowcomp (int *msk_val)

static void	bit_allocate (int nb_exponent, int nb_code, int fr_code, int exp, int bap, int fg_spc, int fg_ofs, int msk_mod, int snr_ofs)

static int	parse_bit_alloc (DBEContext s, DBEChannel c)

static int	parse_indices (DBEContext s, DBEChannel c)

static int	parse_mantissas (DBEContext s, DBEChannel c)

static int	parse_channel (DBEContext *s, int ch, int seg_id)

static int	parse_audio (DBEContext *s, int start, int end, int seg_id)

static int	parse_meter (DBEContext *s)

static void	imdct_calc (DBEContext s, DBEGroup g, float result, float values)

static void	transform (DBEContext s, DBEChannel c, float history, float output)

static void	apply_gain (DBEContext s, int begin, int end, float output)

static int	filter_frame (DBEContext s, AVFrame frame)

static int	dolby_e_decode_frame (AVCodecContext avctx, void data, int got_frame_ptr, AVPacket avpkt)

static av_cold void	dolby_e_flush (AVCodecContext *avctx)

static av_cold int	dolby_e_close (AVCodecContext *avctx)

static av_cold void	init_tables (void)

static av_cold int	dolby_e_init (AVCodecContext *avctx)

Variables
AVCodec	ff_dolby_e_decoder

Function Documentation

◆ skip_input()

static int skip_input	(	DBEContext *	s,
		int	nb_words
	)

static

Definition at line 31 of file dolby_e.c.

Referenced by parse_audio(), parse_key(), parse_metadata(), parse_metadata_ext(), and parse_meter().

◆ parse_key()

static int parse_key ( DBEContext * s )

static

Definition at line 43 of file dolby_e.c.

Referenced by amf_tag_contents(), amf_tag_skip(), parse_audio(), and parse_metadata().

◆ convert_input()

static int convert_input	(	DBEContext *	s,
		int	nb_words,
		int	key
	)

static

Definition at line 55 of file dolby_e.c.

Referenced by parse_audio(), and parse_metadata().

◆ parse_metadata()

static int parse_metadata ( DBEContext * s )

static

Definition at line 91 of file dolby_e.c.

Referenced by dolby_e_decode_frame().

◆ parse_metadata_ext()

static int parse_metadata_ext ( DBEContext * s )

static

Definition at line 150 of file dolby_e.c.

Referenced by dolby_e_decode_frame().

◆ unbias_exponents()

static void unbias_exponents	(	DBEContext *	s,
		DBEChannel *	c,
		DBEGroup *	g
	)

static

Definition at line 157 of file dolby_e.c.

Referenced by parse_exponents().

◆ parse_exponents()

static int parse_exponents	(	DBEContext *	s,
		DBEChannel *	c
	)

static

Definition at line 174 of file dolby_e.c.

Referenced by encode_block(), and parse_channel().

◆ log_add()

static int log_add	(	int	a,
		int	b
	)

inlinestatic

Definition at line 193 of file dolby_e.c.

Referenced by bit_allocate(), and calc_lowcomp().

◆ calc_lowcomp()

static void calc_lowcomp ( int * msk_val )

static

Definition at line 199 of file dolby_e.c.

Referenced by bit_allocate().

◆ bit_allocate()

static void bit_allocate	(	int	nb_exponent,
		int	nb_code,
		int	fr_code,
		int *	exp,
		int *	bap,
		int	fg_spc,
		int	fg_ofs,
		int	msk_mod,
		int	snr_ofs
	)

static

Definition at line 232 of file dolby_e.c.

Referenced by parse_bit_alloc().

◆ parse_bit_alloc()

static int parse_bit_alloc	(	DBEContext *	s,
		DBEChannel *	c
	)

static

Definition at line 281 of file dolby_e.c.

Referenced by parse_channel().

◆ parse_indices()

static int parse_indices	(	DBEContext *	s,
		DBEChannel *	c
	)

static

Definition at line 327 of file dolby_e.c.

Referenced by parse_channel().

◆ parse_mantissas()

static int parse_mantissas	(	DBEContext *	s,
		DBEChannel *	c
	)

static

Definition at line 358 of file dolby_e.c.

Referenced by parse_channel().

◆ parse_channel()

static int parse_channel	(	DBEContext *	s,
		int	ch,
		int	seg_id
	)

static

Definition at line 414 of file dolby_e.c.

Referenced by parse_audio().

◆ parse_audio()

static int parse_audio	(	DBEContext *	s,
		int	start,
		int	end,
		int	seg_id
	)

static

Definition at line 464 of file dolby_e.c.

Referenced by dolby_e_decode_frame().

◆ parse_meter()

static int parse_meter ( DBEContext * s )

static

Definition at line 490 of file dolby_e.c.

Referenced by dolby_e_decode_frame().

◆ imdct_calc()

static void imdct_calc	(	DBEContext *	s,
		DBEGroup *	g,
		float *	result,
		float *	values
	)

static

Definition at line 497 of file dolby_e.c.

Referenced by transform().

◆ transform()

static void transform	(	DBEContext *	s,
		DBEChannel *	c,
		float *	history,
		float *	output
	)

static

Definition at line 523 of file dolby_e.c.

Referenced by filter_frame().

◆ apply_gain()

static void apply_gain	(	DBEContext *	s,
		int	begin,
		int	end,
		float *	output
	)

static

Definition at line 548 of file dolby_e.c.

Referenced by filter_frame().

◆ filter_frame()

static int filter_frame	(	DBEContext *	s,
		AVFrame *	frame
	)

static

Definition at line 565 of file dolby_e.c.

Referenced by dolby_e_decode_frame(), ff_filter_frame(), and ff_filter_frame_framed().

◆ dolby_e_decode_frame()

static int dolby_e_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	got_frame_ptr,
		AVPacket *	avpkt
	)

static

Definition at line 593 of file dolby_e.c.

◆ dolby_e_flush()

static av_cold void dolby_e_flush ( AVCodecContext * avctx )

static

Definition at line 665 of file dolby_e.c.

◆ dolby_e_close()

static av_cold int dolby_e_close ( AVCodecContext * avctx )

static

Definition at line 672 of file dolby_e.c.

◆ init_tables()

static av_cold void init_tables ( void )

static

Definition at line 685 of file dolby_e.c.

Referenced by dolby_e_init().

◆ dolby_e_init()

static av_cold int dolby_e_init ( AVCodecContext * avctx )

static

Definition at line 771 of file dolby_e.c.

Variable Documentation

◆ ff_dolby_e_decoder

AVCodec ff_dolby_e_decoder

Initial value:

= {
    .name           = "dolby_e",
    .long_name      = NULL_IF_CONFIG_SMALL("Dolby E"),
    .type           = AVMEDIA_TYPE_AUDIO,
    .id             = AV_CODEC_ID_DOLBY_E,
    .priv_data_size = sizeof(DBEContext),
    .init           = dolby_e_init,
    .decode         = dolby_e_decode_frame,
    .close          = dolby_e_close,
    .flush          = dolby_e_flush,
    .capabilities   = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_CHANNEL_CONF,
    .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE },
    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
}

Definition at line 792 of file dolby_e.c.

Functions

Variables

Function Documentation

◆ skip_input()

◆ parse_key()

◆ convert_input()

◆ parse_metadata()

◆ parse_metadata_ext()

◆ unbias_exponents()

◆ parse_exponents()

◆ log_add()

◆ calc_lowcomp()

◆ bit_allocate()

◆ parse_bit_alloc()

◆ parse_indices()

◆ parse_mantissas()

◆ parse_channel()

◆ parse_audio()

◆ parse_meter()

◆ imdct_calc()

◆ transform()

◆ apply_gain()

◆ filter_frame()

◆ dolby_e_decode_frame()

◆ dolby_e_flush()

◆ dolby_e_close()

◆ init_tables()

◆ dolby_e_init()

Variable Documentation

◆ ff_dolby_e_decoder