mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-16 21:36:35 +00:00
44 lines
983 B
Text
44 lines
983 B
Text
Use cases for audio applications
|
|
--------------------------------
|
|
|
|
ANALYSIS
|
|
========
|
|
|
|
* find start and end -x dB boundary
|
|
|
|
* find overall volume for complete track (peak/RMS/average)
|
|
|
|
* do level-triggered playback
|
|
|
|
CUE FILES
|
|
=========
|
|
|
|
Given a long audio file and a .cue file:
|
|
- an element should be able to read an audio input stream and a cue input
|
|
stream and send new-media events based on the .cue file information
|
|
- a audiocdsink should be able to record this stream straight to disk
|
|
|
|
Use cases for core functionality
|
|
--------------------------------
|
|
|
|
THREADS
|
|
=======
|
|
|
|
* { sinesrc } ! { queue ! osssink }
|
|
- play thread
|
|
- pause input thread
|
|
- output thread should keep playing as long as queue not empty
|
|
- play input thread again
|
|
- no gaps should be heard
|
|
|
|
Use cases for video applications
|
|
--------------------------------
|
|
|
|
THUMBNAILING
|
|
============
|
|
- load file
|
|
- figure out if it's playable
|
|
- ask length of file
|
|
- seek to middle
|
|
- snapshot one frame
|
|
- save to disk
|