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Gstreamer: How to get audio and video to play at the same rate
https://stackoverflow.com/questions/10185474/gstreamer-how-to-get-audio-and-video-to-play-at-the-same-rate#:~:text=audiotestsrc%20num-buffers%3D150%20By%20default%20each%20buffer%20contains%201024,Asuming%2044.1kHz%2C%20the%20duration%20would%20be%20153600%2F44100%3D3.48%20seconds.
audiotestsrc - GStreamer
https://gstreamer.freedesktop.org/documentation/audiotestsrc/index.html
gst-launch-1.0 audiotestsrc wave=ticks apply-tick-ramp=true tick-interval=100000000 \ freq=10000 volume=0.4 marker-tick-period=10 sine-periods-per-tick=20 ! autoaudiosink This pipeline produces a series of 10 kHz sine wave ticks. Each tick is 20 sine wave periods long, ticks occur every 100 ms and have a volume of 0.4.
audiotestsrc - freedesktop.org
https://www.freedesktop.org/software/gstreamer-sdk/data/docs/2012.5/gst-plugins-base-plugins-0.10/gst-plugins-base-plugins-audiotestsrc.html
Description AudioTestSrc can be used to generate basic audio signals. It support several different waveforms and allows to set the base frequency and volume. Example launch line 1 gst-launch audiotestsrc ! audioconvert ! alsasink This pipeline produces a sine with default frequency, 440 Hz, and the default volume, 0.8 (relative to a maximum 1.0). 1
gst-python/py_audiotestsrc.py at master · GStreamer/gst ...
https://github.com/GStreamer/gst-python/blob/master/examples/plugins/python/py_audiotestsrc.py
Gst. error ('py_audiotestsrc requires numpy') raise: OCAPS = Gst. Caps. from_string ('audio/x-raw, format=F32LE, layout=interleaved, rate=44100, channels=2') SAMPLESPERBUFFER = 1024: DEFAULT_FREQ = 440: DEFAULT_VOLUME = 0.8: DEFAULT_MUTE = False: DEFAULT_IS_LIVE = False: class AudioTestSrc (GstBase. BaseSrc): __gstmetadata__ = ('CustomSrc', 'Src', \
gst-plugins-base/audiotestsrc.c at master · …
https://github.com/GStreamer/gst-plugins-base/blob/master/tests/check/elements/audiotestsrc.c
'Base' GStreamer plugins and helper libraries. Contribute to GStreamer/gst-plugins-base development by creating an account on GitHub.
audioconvert - GStreamer
https://gstreamer.freedesktop.org/documentation/audioconvert/index.html
gst-launch-1.0 -v -m audiotestsrc ! audioconvert ! audio/x-raw,format=S8,channels=2 ! level ! fakesink silent=TRUE This pipeline converts audio to 8-bit. The level element shows that the output levels still match the one for a sine wave.
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