.de Sc \\s-1\\$1\\s0\\$2 .. .ds cA 2008/318 .ds aR \s-1PSARC\s0 .LP .so ../../amac .Co .ds LF \fI\*(aR/\*(cA\fP .ds RF \fICopyright 2009 Sun Microsystems\fP .if n .ds CF .IP \fBSubject:\fP 15 Boomer: Next Generation Audio .IP "\fBSubmitted by:\fP" 15 Garrett D'Amore .IP \fBFile:\fP 15 \*(aR/\*(cA/opinion.ms .IP \fBDate:\fP 15 March 5th, 2009 .IP "\fBCommittee:\fP" 15 Garrett D'Amore (opinion written by Phi Tran), James D. Carlson, Mark Carlson, Rick Matthews, Sebastien Roy, Glenn Skinner. .IP "\fBProduct Approval Committee:\fP" 15 Solaris PAC .br solaris-pac-opinion@sun.com .pn 2 .NH Summary .LP Boomer: Next Generation Audio is a project to modernize the Solaris kernel-based audio system. The framework will be modernized to support the popular Open Sound System API used by several popular free operating systems, including Linux and FreeBSD. Audio quality will be improved by adding features such as high definition (both high frequency and high resolution sampling) and multichannel (for example, 7.1 surround sound) audio support. .NH Decision & Precedence Information .LP The project is approved as specified in reference [1] - [3], but as modified by the required technical change listed in Appendix A below. .LP The project may be delivered in a minor release of the ON consolidation. .LP The project depends on the following other project and may not be delivered before it. LSARC/2009/074 EOF sdtaudiocontrol .NH Interfaces .LP The project exports the following interfaces. .if n .ne 8 .if t .ne 3 .TS H box; c s s l | l | l. Interfaces Exported _ Interface Classification Comments _ .TH audio(7I) Obsolete Committed We've marked this API as Obsolete. We've also changed some semantics in ways that we believe are compatible. See the specification for more detail. mixer(7I) See comments. The old Sun mixer(7I) has been REMOVED. A new OSSv4 API is provided in its place with Uncommitted binding. See the specification for more detail. OSS API Uncommitted External userland API spec. /dev/sndstat Uncommitted Node for finding OSS dev nodes. /dev/audio Obsolete Committed Legacy Sun /dev/audioctl Obsolete Committed Legacy Sun /dev/sound/[0-9]+ Obsolete Committed Legacy Sun /dev/sound/[0-9]+ctl Obsolete Committed Legacy Sun /dev/mixer Uncommitted Symbolic link to /dev/sndstat /dev/dsp Uncommitted File name may change. Boomer DDI Consolidation Private New device driver API ac97 DDI Consolidation Private AC'97 support routines. SADA DDI REMOVED Legacy device driver API amsrc2 REMOVED mixer(7d) REMOVED audiosup(7d) REMOVED mixerctl(1) Uncommitted New CLI switches, may raise commitment later. audio control names Uncommitted ASCIIZ representation for hardware audio controls. audioplay -p & -m REMOVED Per TCA audiorecord -p & -m REMOVED Per TCA Client Personality API Project Private "audio_client.h" header. audiopci Uncommitted New audio driver. .TE .TE .NH Opinion .LP .NH 2 sdtaudiocontrol dependency .LP A member wanted to understand if sdtaudiocontrol should be removed from Nevada before Boomer integration. The project team noted that LSARC/2009/074 EOF sdtaudiocontrol has been filed. In addition, LSARC/2009/074 is noted as a dependency for this case and the project team will file a bug. .NH 2 digital telephone interface support .LP A member questioned if Boomer could architecturally support digital telephone interfaces which are inherently 8-bit mu-law PCM (or A-law in Europe). The project team clarified that there is no support currently in Boomer to handle telephone inputs, but that Boomer could support these interfaces if there was a need. .NH 2 audioplay and audiorecord command line options .LP A member asked if the disabled command line options in audioplay and audiorecord will have an EOF announcement. Other members stated that having the functionality of the command line options available and not work properly was problematic. The project team noted that these command line options were still available due to concern over breaking programs that depend on them. The project team decided that this concern was not a strong enough reason and agreed to a TCR to make the EOF announcement regarding the command line options. Also, the project team agreed to a TCA to remove disabled command line options that handle port selection and master settings such as volume control and monitor gain. .NH 2 audigy and SADA DDI .LP Since the audigy driver will not be supported in phase I, a member asked about the support of the public SADA interfaces. The project team clarified that the SADA interfaces are actually consolidation private and not public. .NH Minority Opinion(s) .LP None. .NH Advisory Information .LP During the review, concerns were expressed over the lack of project alignment between SunRay and OpenSolaris. The committee believes that this lack of alignment could, at least partially, be mitigated by SunRay components being reviewed within the OpenSolaris ARC process. .NH Appendices .NH 2 Appendix A: Technical Changes Required .LP .IP 1. The project team will make an EOF announcement about disabled audioplay and audiorecord command line options. .NH 2 Appendix B: Technical Changes Advised .LP .IP 1. The project team will remove disabled command line options that handle port selection and master settings such as volume control and monitor gain. .NH 2 Appendix C: Reference Material .LP Unless stated otherwise, path names are relative to the case directory \*(aR/\*(cA. .IP 1. 20 Questions .br File: inception.materials/boomer.20q .IP 2. Project Specification .br File: commitment.materials/boomer.pdf .IP 3. Issues and Responses .br File: issues .IP 4. Man Page for dsp OSS API .br File: commitment.materials/dsp.7I .IP 5. Man Page for mixer OSS API .br File: commitment.materials/mixer.7I .IP 6. Community OSS website .br http://developer.opensound.com/