[Bug 794257] New: audiomixer: Negotiation failure when input has several channels (> 2)
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Mon Mar 12 12:12:55 UTC 2018
https://bugzilla.gnome.org/show_bug.cgi?id=794257
Bug ID: 794257
Summary: audiomixer: Negotiation failure when input has several
channels (> 2)
Classification: Platform
Product: GStreamer
Version: git master
OS: Linux
Status: NEW
Severity: blocker
Priority: Normal
Component: gst-plugins-base
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: tsaunier at gnome.org
QA Contact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
Basically for some reason the channel-mask seems to be ignmore and then
gst_audio_info_set_format fails.
Very simple reproduction steps:
```
$ GST_DEBUG=2 gst-launch-1.0 audiotestsrc !
audio/x-raw,channels=6,channel-mask="(bitmask)0x0000000000000c0f",format=F32LE,rate=48000,layout=interleaved
! audiomixer ! fakesink
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
0:00:00.026757068 23500 0x55dd57827ca0 WARN aggregator
gstaggregator.c:1715:gst_aggregator_query_latency_unlocked:<audiomixer0>
Latency query failed
0:00:00.026856769 23500 0x55dd57827ca0 WARN aggregator
gstaggregator.c:1715:gst_aggregator_query_latency_unlocked:<audiomixer0>
Latency query failed
0:00:00.027209799 23500 0x55dd57827ca0 ERROR audio-info
audio-info.c:304:gst_audio_info_from_caps: no channel-mask property given
0:00:00.027219079 23500 0x55dd57827ca0 WARN audioaggregator
gstaudioaggregator.c:841:gst_audio_aggregator_negotiated_src_caps:<audiomixer0>
Rejecting invalid caps: audio/x-raw, format=(string)F32LE, rate=(int)48000,
channels=(int)6, layout=(string)interleaved
0:00:00.027236206 23500 0x55dd57827ca0 WARN aggregator
gstaggregator.c:1061:gst_aggregator_update_src_caps:<audiomixer0> Subclass
failed to accept negotiated caps
0:00:00.027381273 23500 0x55dd57827c50 WARN basesrc
gstbasesrc.c:3055:gst_base_src_loop:<audiotestsrc0> error: Internal data stream
error.
0:00:00.027392720 23500 0x55dd57827c50 WARN basesrc
gstbasesrc.c:3055:gst_base_src_loop:<audiotestsrc0> error: streaming stopped,
reason not-negotiated (-4)
ERROR: from element /GstPipeline:pipeline0/GstAudioTestSrc:audiotestsrc0:
Internal data stream error.
Additional debug info:
../subprojects/gstreamer/libs/gst/base/gstbasesrc.c(3055): gst_base_src_loop
(): /GstPipeline:pipeline0/GstAudioTestSrc:audiotestsrc0:
streaming stopped, reason not-negotiated (-4)
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...
```
Marking as blocker as it works on 1.12.
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