Let's follow the Google Style Guide, in which private variables are
simply suffixed with "_". It's a sign, not a cop, but that's fine.
I'd rather keep things simple, and code review should suffice for
catching uses of a private variable outside the class.
This is effective both for Chrome's "Save As" dialog and for curl -OJ.
It makes the filename like 20190717135519-driveway-main.mp4 rather than
view.mp4 (Chrome) or view.mp4?s=33-36&ts=true (Curl).
The reqwest one is particularly notable because it means not having two
versions of hyper/http/tokio/futures/bytes. It also drops a number of
transitive deps; with some work I think I could stop depending on regex
now.
This doesn't take much advantage of async fns so far. For example, the
with_{form,json}_body functions are still designed to be used with
future combinators when it'd be more natural to call them from async
fns now. But it's a start.
Similarly, this still uses the old version of reqwest. Small steps.
Requires Rust 1.40 now. (1.39 is a requirement of async, and 1.40 is a
requirement of http-serve 0.2.0.)
xenial is too old for 6fb346c to work. From comparing release dates, I
think it's reasonable to guess people won't have trouble running
something newer. In particular, there have been two major Raspbian
releases since then, so current Pi systems will be more bionic-like than
xenial-like.
https://wiki.ubuntu.com/Releases
* xenial (LTS) was relesed 2016-04-21
* bionic (LTS) was released 2018-04-26
https://en.wikipedia.org/wiki/Raspbian
* stretch was released 2017-08-17
* buster was released 2019-06-24
https://www.debian.org/releases/
* stretch was released 2017-06-17
* buster was released 2019-07-06
(interesting that Raspbian buster was released before Debian buster)
The codec -> codecpar move was sufficiently long ago (libavformat
57.5.0 on 2016-04-11) that I think we can just get away with requiring
the new version. Let's try it.
But if someone complains, AVCodecParameters and AVCodecContext look
sufficiently similar we could probably just use one or the other based on
the version we're compiling with.
I'm getting deprecation warnings for std::sync::ONCE_INIT, and I'm
not sure when std::sync::Once::new() became a const fn. Just as easy to
switch to parking_lot.
This addressed a deprecation warning on nightly (will be in Rust 1.38).
Use parking_lot instead, which in theory is faster (although I doubt
it's significant here).
Now the test actually has a recording and garbage with matching files.
This caught a few problems in the upgrade procedure:
* it didn't work with foreign keys enabled because the new recording
table was set up after the new camera table, and the old recording
table was destroyed after the old camera table. And now I enable
foreign keys all the time. Reorder the procedure to fix.
* the pathname manipulation in the v2 to v3 procedure was incorrect
since my introduction of nix because I gave it a &[u8] with the
trailing nul, where I should have used CStr::from_bytes_with_nul.
* it wasn't removing garbage files. It'd be most natural to do this
in the v2 to v3 upgrade (with the rename) but I historically removed
the table when upgrading to v2. I can't redefine the schema now, so
do it unnaturally.
I'm considering also renaming all uuid-like files on upgrade to v4/v5
to clean up this mess automatically for installations that have
already done this upgrade.
The immediate motivation is that Cargo.lock referred to a commit version
in a PR branch of my nix fork that no longer exists. (I didn't know, but
it makes sense, that "git push -f" not only forcibly updates the branch
to refer to a new commit but also gets rid of orphaned commits.) Use a
moonfire branch that I'll keep stable until I'm ready to move on.
I also updated parking_lot and rusqlite to new major versions (nothing
in the interface that I care about has changed) and did a full cargo
update.
This is nicer in a few ways:
* I can use openat so there's no possibility of any kind of a race
involving scanning a different directory than the one used in
other ways (locking, metadata file, adding/removing sample files)
* filename() doesn't need to allocate memory, so it's a bit more
efficient
* dogfooding - I wrote nix::dir.
* in markdown files, use code fences rather than indented blocks.
This is harder to screw up (one of them was off by a space so didn't
render properly) and allows me to add info strings.
* uniformly use "useradd" to create the user and group in all three
places (install-manual.md, script-functions.sh, Dockerfile) rather
than addgroup + adduser. Create a full home dir, which I suspect was
the problem in #67. Don't allow customizing group name; it's always
the same as the user.
* install the sqlite3 package so that the "moonfire-nvr sql" command
works properly.
* remove "setup_db" function, which was out of place. Since the
creation of the "moonfire-nvr init" command, this has to happen
after installation of the binary. install.md gives instructions on
this part anyway so remove it from the script.
* give a proper command to create the db dir. It was creating it
within the current directory, not within /var/lib/moonfire-nvr.
Don't bother creating sample directory; "moonfire-nvr config"
will do this.
* when setting owners on a newly created directory, use a single
"install -d" command rather than "mkdir" + "chown".
* address confusion about whether sample file dirs need to be
precreated. (Only when Moonfire NVR doesn't have write permissions
on the parent.)
* always just install the packaged version of ffmpeg rather than
building our own. This has been usable since Debian/Raspbian 9
Stretch; Debian/Raspbian 10 Buster is out now so there's no excuse
for still running Debian/Raspbian 8 Jessie.
* don't chown the UI directory; it can be owned by root as with
the binary.
* in scripts/install.sh, don't enable/start the service yet. It hasn't
been configured.
Add a new schema version 5; now 4 means the directory meta may or may
not be upgraded.
Fixes#65: now it's possible to open the directory even if it lies on a
completely full disk.
Newer SQLite library versions (such as what you get when using
--features=bundled) actually enforce foreign keys. Unfortunately there's
no way to drop foreign key constraints, so you have to transitively
recreate all the tables with foreign key constraints on the table you're
recreating.
My dad's "GW-GW4089IP" cameras use separate ports for the main and sub
streams:
rtsp://192.168.1.110:5050/H264?channel=0&subtype=0&unicast=true&proto=Onvif
rtsp://192.168.1.110:5049/H264?channel=0&subtype=1&unicast=true&proto=Onvif
Previously I could get one of the streams to work by including :5050 or
:5049 in the host field of the camera. But not both. Now make the
camera's host field reflect the ONVIF port (which is also non-standard
on these cameras, :85). It's not directly used yet but probably will be
sooner or later. Make each stream know its full URL.
Scott Lamb