bwlp/qemu.git/audio/rate_template.h, branch spice_video_codecs

audio: prevent an integer overflow in resampling code

2022-10-11T08:17:08+00:00

There are corner cases where rate->opos can overflow. For example, if QEMU is started with -audiodev pa,id=audio0, out.frequency=11025 -device ich9-intel-hda -device hda-duplex, audiodev=audio0 and the guest plays audio with a sampling frequency of 44100Hz, rate->opos will overflow after 27.05h and the audio stream will be silent for a long time. To prevent a rate->opos and also a rate->ipos overflow, both are wrapped around after a short time. The wrap around point rate->ipos >= 0x10001 is an arbitrarily selected value and can be any small value, 0 and 1 included. The comment that an ipos overflow will result in an infinite loop has been removed, because in this case the resampling code only generates no more output samples and the audio stream stalls. However, there is no infinite loop. Signed-off-by: Volker Rümelin Message-Id: <20220923183640.8314-12-vr_qemu@t-online.de> Signed-off-by: Gerd Hoffmann

audio: use size_t where makes sense

2019-08-21T07:13:37+00:00

Signed-off-by: Kővágó, Zoltán Message-id: c5193e687fc6cc0f60cb3e90fe69ddf2027d0df1.1566168923.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann

audio: st_rate_flow exist a infinite loop

2017-07-17T09:08:59+00:00

If a voice recording equipment is opened for a long time(several days) in windows guest, rate->ipos will overflow and rate->opos will never have a chance to change. It will result to a infinite loop. Signed-off-by: Peng Hao Signed-off-by: Wang Yechao Message-id: 1500128061-20849-1-git-send-email-peng.hao2@zte.com.cn Signed-off-by: Gerd Hoffmann

Make audio violate POSIX less

2008-12-03T22:48:44+00:00

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5864 c046a42c-6fe2-441c-8c8c-71466251a162

rate converter fix (malc)

2006-07-04T16:47:58+00:00

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2038 c046a42c-6fe2-441c-8c8c-71466251a162

audio merge (malc)

2005-11-05T18:55:28+00:00

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1601 c046a42c-6fe2-441c-8c8c-71466251a162

merged 15a_aqemu.patch audio patch (malc)

2005-10-30T18:58:22+00:00

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1584 c046a42c-6fe2-441c-8c8c-71466251a162