[Bug 705986] New: audioconvert/audioresample: Add support for non-interleaved audio formats
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Wed Aug 14 05:25:40 PDT 2013
https://bugzilla.gnome.org/show_bug.cgi?id=705986
GStreamer | gst-plugins-base | git
Summary: audioconvert/audioresample: Add support for
non-interleaved audio formats
Classification: Platform
Product: GStreamer
Version: git
OS/Version: Linux
Status: NEW
Keywords: perf
Severity: normal
Priority: Normal
Component: gst-plugins-base
AssignedTo: gstreamer-bugs at lists.freedesktop.org
ReportedBy: slomo at circular-chaos.org
QAContact: gstreamer-bugs at lists.freedesktop.org
CC: t.i.m at zen.co.uk, wim.taymans at gmail.com
Blocks: 705977
GNOME version: ---
+++ This bug was initially created as a clone of Bug #705977 +++
With the upgrade of libav, support for S16 and planar conversions were removed
internally and gst-libav now receives the raw planar F32 samples.
For AAC, gst-libav converts the planar F32 samples to interleaved and then
audioconvert converts the F32 samples to S16. This is a lot less efficient than
the tight single conversion loop that was previously used.
We should:
- let the audio decoder render planar samples directly into the output buffer
- make gst-libav output planar formats
- add support for planar formats in audioconvert and possibly other elements
that could be used in a typical playbin pipeline
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