gestreamr 各种元件

— play audio to an ALSA device

— capture audio from an alsa device

— Convert audio to different formats

— Resample audio

gst-launch -v filesrc location=sine.ogg ! oggdemux ! vorbisdec ! audioconvert ! audioresample ! audio/x-raw-int, rate=8000 ! alsasink

— a demuxer for ogg files

gst-launch -v filesrc location=test.ogg ! oggdemux ! vorbisdec ! audioconvert ! alsasink

— Autoplug and play media from an uri

— Next-generation automatic decoding bin

— Adds text strings on top of a video buffer

— Renders a text string to an image bitmap

— retimestamps and drops/duplicates video frames to match the source pad's framerate and create a perfect stream

— Resizes video

— Set volume on audio/raw streams

 a decoder that decodes Vorbis to raw audio

— an encoder that encodes audio to Vorbis

— parses vorbis streams

ximagesink — A standard X based videosink

xvimagesink — A Xv based videosink

 

— Adds multiple streams

Add N audio channels together

 

— Convert audio to different formats

— Adjusts audio frames

— Resamples audio

 

— decoder bin

— decoder bin newer version

— colorspace conversion copied from FFMpeg 0.4.9-pre1

 

— libvisual visualization plugins

— ogg stream manipulation (info about ogg: )

— Pango-based text rendering and overlay

— player bin

 

— Adjusts video frames

— Resizes video

— plugin for controlling audio volume

— Vorbis plugin library

 

 

— ESD Element Plugins

描述：元件输出声音到已经运行的后台Enlightened Sound Daemon（esd）这个元件不会自动自动esd后台，如果需要使用esd，必须确保esd开始运行。

plays an Ogg/Vorbis file via esd:

gst-launch -v filesrc location=foo.ogg ! decodebin ! audioconvert ! audioresample ! esdsink

 

output sound using OSS

record sound from your sound card using OSS

— 把一个QuickTime文件分离成单独的音频和视频信息它于quicktime控件有关

gst-launch filesrc location=test.mov ! qtdemux name=demux  demux.audio_00 ! decodebin ! audioconvert ! audioresample ! autoaudiosink   demux.video_00 ! queue ! decodebin ! ffmpegcolorspace ! videoscale ! autovideosink

 

 

— Decodes Wavpack audio data

描述：WavpackDec decodes framed (for example by the WavpackParse element) Wavpack streams and decodes them to raw audio. is an open-source audio codec that features both lossless and lossy encoding.

gst-launch filesrc location=test.wv ! wavpackparse ! wavpackdec ! audioconvert ! audioresample ! autoaudiosink

 

— Parse a .wav file into raw audio

描述：Wavparse supports both push and pull mode operations, making it possible to stream from a network source.

gst-launch filesrc location=sine.wav ! wavparse ! audioconvert ! alsasink

Read a wav file and output to the soundcard using the ALSA element. The wav file is assumed to contain raw uncompressed samples

gst-launch gnomevfssrc location= ! queue ! wavparse ! audioconvert ! alsasink

 

— Plugin contains auto-detection plugins for video/audio outputs

	Wrapper audio sink for automatically detected audio sink
	Wrapper video sink for automatically detected video sink

 

— AVI stream handling

	Demultiplex an avi file into audio and video
	Muxes audio and video into an avi stream
	Parse avi subtitle stream

 

OSS(Open Sound System)support for GStreamer

	Control sound input and output levels with OSS
	Output to a sound card via OSS
	Capture from a sound card via OSS

 

— Quicktime support

	对quicktime文件进行视音频分离
rtpxqtdepay	Extracts Quicktime audio/video from RTP packets

 

— Encode raw audio into WAV

只包含一个元件 wavenc 把原始的音频数据编码成wav

 

Wavpack lossless/lossy audio format handling

	Decodes Wavpack audio data
	Encodes audio with the Wavpack lossless/lossy audio codec
	Parses Wavpack files

 

— Adaptive Multi-Rate Wideband audio decoder

— Adaptive Multi-Rate Wideband audio encoder

— parses a byte stream into audio frames

— A DirectFB based videosink

a decoder that decodes Vorbis to raw audio

gst-launch filesrc location=abc.amr ! amrwbparse ! amrwbdec ! audioresample ! audioconvert ! alsasink

 

element that parse or demux metadata from image files

 

— Output to a sound card via SDLAUDIO

— An SDL-based videosink

— Receive data over the network via SDP

— Set speed/pitch on audio/raw streams (resampler)

— GSM encoder/decoder

fbdevsink — linux framebuffer video sink

— Element parsing raw h264 streams
— Decode REAL streams