legacyresample

legacyresample — Resample audio

Synopsis

struct              GstLegacyresample;

Properties

  "filter-length"            gint                  : Read / Write / Construct

Description

legacyresample resamples raw audio buffers to different sample rates using a configurable windowing function to enhance quality.

Example launch line

1
gst-launch -v filesrc location=sine.ogg ! oggdemux ! vorbisdec ! audioconvert ! legacyresample ! audio/x-raw-int, rate=8000 ! alsasink
Decode an Ogg/Vorbis downsample to 8Khz and play sound through alsa. To create the Ogg/Vorbis file refer to the documentation of vorbisenc.

Last reviewed on 2006-03-02 (0.10.4)

Synopsis

Element Information

plugin

legacyresample

author

David Schleef <ds@schleef.org>

class

Filter/Converter/Audio

Element Pads

name

sink

direction

sink

presence

always

details

audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean)true

audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)32, depth=(int)32, signed=(boolean)true

audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)32

audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)64

name

src

direction

source

presence

always

details

audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean)true

audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)32, depth=(int)32, signed=(boolean)true

audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)32

audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)64

Details

struct GstLegacyresample

struct GstLegacyresample {
  GstBaseTransform element;

  GstCaps *srccaps, *sinkcaps;

  gboolean passthru;
  gboolean need_discont;

  guint64 offset;
  guint64 ts_offset;
  GstClockTime next_ts;
  GstClockTime prev_ts, prev_duration;
  int channels;

  int i_rate;
  int o_rate;
  int filter_length;

  ResampleState * resample;
};

Opaque data structure.

Property Details

The "filter-length" property

  "filter-length"            gint                  : Read / Write / Construct

Length of the resample filter.

Allowed values: >= 0

Default value: 16