[#VWR-7346] LLMedia not controlling audio streams correctly

1. Second Life Viewer - VWR

LLMedia not controlling audio streams correctly

Created: 22/May/08 05:44 AM Updated: 28/May/08 09:18 AM

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Component/s:

Sound

Affects Version/s:

1.20 Release Candidate

Fix Version/s:

1.20 Release Candidate

File Attachments:	1. openal_patch_1_20_7_llmedia_broken.patch (29 kB)
Environment:	OpenSolaris, Ultra-40M2

Source Version:	1.20.7.0
Linden Lab Issue ID:	DEV-15756
Patch attached:	Patch attached

Description

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The LLMedia API suggests one use addCommand() to control play, pause, stop, etc. however using these functions to control an audio stream appears to be broken. Using these to control a GStreamer enabled audio stream results in no change in the output after the stream is started. The attached patch only creates a version of OpenAL support which can be used to demonstrate the problem.

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Tofu Linden added a comment - 28/May/08 09:17 AM

updateMedia() needs to be called intermittently to allow the command-queue to be drained.

From llmediabase.h:
// needs to be called regularly to make media stream update itself
virtual bool updateMedia() = 0;

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Tofu Linden added a comment - 28/May/08 09:18 AM

Let me know if that doesn't help.