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faac

faac

Properties

gint bitrate Read / Write / Construct
gboolean midside Read / Write / Construct
GstFaacOutputFormat outputformat Read / Write
GstFaacProfile profile Read / Write
GstFaacShortCtl shortctl Read / Write / Construct
gboolean tns Read / Write / Construct
gint quality Read / Write / Construct
GstFaacBrtype rate-control Read / Write / Construct

Types and Values

struct GstFaac

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstAudioEncoder
                    ╰── GstFaac

Implemented Interfaces

GstFaac implements GstPreset.

Description

faac encodes raw audio to AAC (MPEG-4 part 3) streams.

Example launch line

1
gst-launch-1.0 audiotestsrc wave=sine num-buffers=100 ! audioconvert ! faac ! matroskamux ! filesink location=sine.mkv

Encode a sine beep as aac and write to matroska container.

Synopsis

Element Information

plugin

faac

author

Ronald Bultje <rbultje@ronald.bitfreak.net>

class

Codec/Encoder/Audio

Element Pads

name

sink

direction

sink

presence

always

details

audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)1

audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)2, channel-mask=(bitmask)0x0000000000000003

audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)3, channel-mask=(bitmask)0x0000000000000007

audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)4, channel-mask=(bitmask)0x0000000000000107

audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)5, channel-mask=(bitmask)0x0000000000000037

audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)6, channel-mask=(bitmask)0x000000000000003f

name

src

direction

source

presence

always

details

audio/mpeg, mpegversion=(int)4, channels=(int)[ 1, 6 ], rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, stream-format=(string){ adts, raw }, base-profile=(string){ main, lc, ssr, ltp }, framed=(boolean)true

audio/mpeg, mpegversion=(int)2, channels=(int)[ 1, 6 ], rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, stream-format=(string){ adts, raw }, profile=(string){ main, lc }, framed=(boolean)true

Functions

Types and Values

struct GstFaac

struct GstFaac;

Property Details

The “bitrate” property

  “bitrate”                  gint

Average Bitrate (ABR) in bits/sec.

Flags: Read / Write / Construct

Allowed values: [8000,320000]

Default value: 128000


The “midside” property

  “midside”                  gboolean

Allow mid/side encoding.

Flags: Read / Write / Construct

Default value: TRUE


The “outputformat” property

  “outputformat”             GstFaacOutputFormat

Format of output frames.

Flags: Read / Write

Default value: OUTPUTFORMAT_RAW


The “profile” property

  “profile”                  GstFaacProfile

MPEG/AAC encoding profile.

Flags: Read / Write

Default value: LC


The “shortctl” property

  “shortctl”                 GstFaacShortCtl

Block type encorcing.

Flags: Read / Write / Construct

Default value: SHORTCTL_NORMAL


The “tns” property

  “tns”                      gboolean

Use temporal noise shaping.

Flags: Read / Write / Construct

Default value: FALSE


The “quality” property

  “quality”                  gint

Variable bitrate (VBR) quantizer quality in %.

Flags: Read / Write / Construct

Allowed values: [1,1000]

Default value: 100


The “rate-control” property

  “rate-control”             GstFaacBrtype

Encoding bitrate type (VBR/ABR).

Flags: Read / Write / Construct

Default value: VBR

See Also

faad

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