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| author | Kővágó, Zoltán | 2019-10-13 21:58:06 +0200 |
|---|---|---|
| committer | Gerd Hoffmann | 2019-10-18 08:14:05 +0200 |
| commit | 670777a91580ec7e34d879c3973927f748be6f47 (patch) | |
| tree | ee9d5c57f38fe689da268b2a1b9712225672e693 /tests/pnv-xscom-test.c | |
| parent | usb-audio: support more than two channels of audio (diff) | |
| download | qemu-670777a91580ec7e34d879c3973927f748be6f47.tar.gz qemu-670777a91580ec7e34d879c3973927f748be6f47.tar.xz qemu-670777a91580ec7e34d879c3973927f748be6f47.zip | |
usbaudio: change playback counters to 64 bit
With stereo playback, they need about 375 minutes of continuous audio
playback to overflow, which is usually not a problem (as stopping and
later resuming playback resets the counters). But with 7.1 audio, they
only need about 95 minutes to overflow.
After the overflow, the buf->prod % USBAUDIO_PACKET_SIZE(channels)
assertion no longer holds true, which will result in overflowing the
buffer. With 64 bit variables, it would take about 762000 years to
overflow.
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: ff866985ed369f1e18ea7c70da6a7fce8e241deb.1570996490.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'tests/pnv-xscom-test.c')
0 files changed, 0 insertions, 0 deletions