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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 |
Object Hierarchy
GObject ╰── GInitiallyUnowned ╰── GstObject ╰── GstElement ╰── GstAudioEncoder ╰── GstFaac
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 |
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