xine_a52_decoder.c File Reference

#include "config.h"
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <xine/xine_internal.h>
#include <xine/audio_out.h>
#include "a52.h"
#include <xine/buffer.h>
#include <xine/xineutils.h>

Data Structures
struct	a52dec_class_t
struct	a52dec_decoder_s
struct	frmsize_s

Macros
#define	_DEFAULT_SOURCE   1
#define	_XOPEN_SOURCE   500
#define	_BSD_SOURCE   1
#define	LOG_MODULE   "a52_decoder"
#define	LOG_VERBOSE
#define	SAMPLE_OFFS   384

Typedefs
typedef struct a52dec_decoder_s	a52dec_decoder_t

Functions
static void	a52dec_reset (audio_decoder_t *this_gen)
static void	a52dec_discontinuity (audio_decoder_t *this_gen)
static void	downmix_lfe_1 (sample_t *target, sample_t *lfe, sample_t gain)
static void	downmix_lfe_2 (sample_t *target1, sample_t *target2, sample_t *lfe, sample_t gain)
static void	float_to_int (sample_t *_f, int16_t *s16, int num_channels)
static void	mute_channel (int16_t *s16, int num_channels)
static void	a52dec_decode_frame (a52dec_decoder_t *this, int64_t pts, int preview_mode)
static void	a52dec_decode_data (audio_decoder_t *this_gen, buf_element_t *buf)
static void	a52dec_dispose (audio_decoder_t *this_gen)
static audio_decoder_t *	open_plugin (audio_decoder_class_t *class_gen, xine_stream_t *stream)
static void	dispose_class (audio_decoder_class_t *this_gen)
static void	lfe_level_change_cb (void *this_gen, xine_cfg_entry_t *entry)
static void	a52_level_change_cb (void *this_gen, xine_cfg_entry_t *entry)
static void	dynrng_compress_change_cb (void *this_gen, xine_cfg_entry_t *entry)
static void	surround_downmix_change_cb (void *this_gen, xine_cfg_entry_t *entry)
static void *	init_plugin (xine_t *xine, const void *data)

Variables
static const struct frmsize_s	frmsizecod_tbl [64]
static const uint32_t	audio_types []
static const decoder_info_t	dec_info_audio
const plugin_info_t xine_plugin_info[]	EXPORTED

Macro Definition Documentation

_BSD_SOURCE

#define _BSD_SOURCE   1

_DEFAULT_SOURCE

#define _DEFAULT_SOURCE   1

_XOPEN_SOURCE

#define _XOPEN_SOURCE   500

LOG_MODULE

#define LOG_MODULE   "a52_decoder"

LOG_VERBOSE

#define LOG_VERBOSE

SAMPLE_OFFS

#define SAMPLE_OFFS   384

Typedef Documentation

a52dec_decoder_t

typedef struct a52dec_decoder_s a52dec_decoder_t

Function Documentation

a52_level_change_cb()

static void a52_level_change_cb ( void *  this_gen, xine_cfg_entry_t *  entry  )

static

References a52dec_class_t::a52_level, and xine_cfg_entry_s::num_value.

Referenced by init_plugin().

a52dec_decode_data()

static void a52dec_decode_data ( audio_decoder_t *  this_gen, buf_element_t *  buf  )

static

References _x_meta_info_get(), _x_meta_info_set_utf8(), _x_stream_info_set(), a52dec_decode_frame(), BUF_AUDIO_DNET, BUF_FLAG_HEADER, BUF_FLAG_PREVIEW, buf_element_s::content, buf_element_s::decoder_flags, buf_element_s::decoder_info, lprintf, buf_element_s::pts, buf_element_s::size, buf_element_s::type, xine_crc16_ansi(), XINE_META_INFO_AUDIOCODEC, XINE_STREAM_INFO_AUDIO_BITRATE, XINE_STREAM_INFO_AUDIO_SAMPLERATE, XINE_VERBOSITY_DEBUG, and xprintf.

Referenced by open_plugin().

a52dec_decode_frame()

static void a52dec_decode_frame ( a52dec_decoder_t *  this, int64_t  pts, int  preview_mode  )

static

References AO_CAP_MODE_4_1CHANNEL, AO_CAP_MODE_4CHANNEL, AO_CAP_MODE_5_1CHANNEL, AO_CAP_MODE_5CHANNEL, AO_CAP_MODE_A52, AO_CAP_MODE_MONO, AO_CAP_MODE_STEREO, downmix_lfe_1(), downmix_lfe_2(), float_to_int(), frmsize_s::frm_size, frmsizecod_tbl, lprintf, audio_buffer_s::mem, mute_channel(), NULL, audio_buffer_s::num_frames, SAMPLE_OFFS, audio_buffer_s::stream, audio_buffer_s::vpts, XINE_VERBOSITY_DEBUG, and xprintf.

Referenced by a52dec_decode_data().

a52dec_discontinuity()

static void a52dec_discontinuity ( audio_decoder_t *  this_gen )

static

Referenced by open_plugin().

a52dec_dispose()

static void a52dec_dispose ( audio_decoder_t *  this_gen )

static

References NULL.

Referenced by open_plugin().

a52dec_reset()

static void a52dec_reset ( audio_decoder_t *  this_gen )

static

Referenced by open_plugin().

dispose_class()

static void dispose_class ( audio_decoder_class_t *  this_gen )

static

References a52dec_class_t::config, NULL, and config_values_s::unregister_callbacks.

Referenced by init_plugin().

downmix_lfe_1()

static void downmix_lfe_1 ( sample_t *  target, sample_t *  lfe, sample_t  gain  )

inlinestatic

Referenced by a52dec_decode_frame().

downmix_lfe_2()

static void downmix_lfe_2 ( sample_t *  target1, sample_t *  target2, sample_t *  lfe, sample_t  gain  )

inlinestatic

Referenced by a52dec_decode_frame().

dynrng_compress_change_cb()

static void dynrng_compress_change_cb ( void *  this_gen, xine_cfg_entry_t *  entry  )

static

References xine_cfg_entry_s::num_value.

Referenced by init_plugin().

float_to_int()

static void float_to_int ( sample_t *  _f, int16_t *  s16, int  num_channels  )

inlinestatic

Referenced by a52dec_decode_frame().

init_plugin()

static void* init_plugin ( xine_t *  xine, const void *  data  )

static

References _, a52dec_class_t::a52_level, a52_level_change_cb(), a52dec_class_t::config, xine_s::config, a52dec_class_t::decoder_class, audio_decoder_class_s::description, a52dec_class_t::disable_dynrng_compress, audio_decoder_class_s::dispose, dispose_class(), dynrng_compress_change_cb(), a52dec_class_t::enable_surround_downmix, audio_decoder_class_s::identifier, a52dec_class_t::lfe_level_1, a52dec_class_t::lfe_level_2, lfe_level_change_cb(), lprintf, N_, NULL, audio_decoder_class_s::open_plugin, open_plugin(), config_values_s::register_bool, config_values_s::register_range, and surround_downmix_change_cb().

lfe_level_change_cb()

static void lfe_level_change_cb ( void *  this_gen, xine_cfg_entry_t *  entry  )

static

References a52dec_class_t::lfe_level_1, a52dec_class_t::lfe_level_2, and xine_cfg_entry_s::num_value.

Referenced by init_plugin().

mute_channel()

static void mute_channel ( int16_t *  s16, int  num_channels  )

inlinestatic

Referenced by a52dec_decode_frame().

open_plugin()

static audio_decoder_t* open_plugin ( audio_decoder_class_t *  class_gen, xine_stream_t *  stream  )

static

References _, a52dec_decode_data(), a52dec_discontinuity(), a52dec_dispose(), a52dec_reset(), AO_CAP_MODE_4_1CHANNEL, AO_CAP_MODE_4CHANNEL, AO_CAP_MODE_5_1CHANNEL, AO_CAP_MODE_5CHANNEL, AO_CAP_MODE_A52, AO_CAP_MODE_MONO, AO_CAP_MODE_STEREO, xine_stream_s::audio_out, xine_audio_port_s::get_capabilities, lprintf, NULL, xine_stream_s::xine, xine_create_cloexec(), xine_mm_accel(), XINE_VERBOSITY_LOG, and xprintf.

Referenced by init_plugin().

surround_downmix_change_cb()

static void surround_downmix_change_cb ( void *  this_gen, xine_cfg_entry_t *  entry  )

static

References xine_cfg_entry_s::num_value.

Referenced by init_plugin().

Variable Documentation

audio_types

const uint32_t audio_types[]

static

Initial value:

= {
  BUF_AUDIO_A52,
  BUF_AUDIO_DNET,
  0
 }

dec_info_audio

const decoder_info_t dec_info_audio

static

Initial value:

= {
  .supported_types = audio_types,
  .priority        = 8,
}

EXPORTED

const plugin_info_t xine_plugin_info [] EXPORTED

Initial value:

= {
  
  { PLUGIN_AUDIO_DECODER | PLUGIN_MUST_PRELOAD, 16, "a/52", XINE_VERSION_CODE, &dec_info_audio, init_plugin },
  { PLUGIN_NONE, 0, NULL, 0, NULL, NULL }
}

frmsizecod_tbl

const struct frmsize_s frmsizecod_tbl[64]

static

Referenced by a52dec_decode_frame().