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We cannot specify an audio format for bypass mode,
so inherit the last one we used and hope it works.
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This was unnecessary since we already iterate through the overrides
hash and merge "manually" based on command-line arguments
(which allows us to represent nested hashes).
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If somebody is using dtas-player to help edit a file for
dtas-splitfx, it is likely they will want to use it when
generating the final files (regardless of "target" format).
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These are intended to act like `$(@D)' and `$(@F)' in GNU make(1)
and to ease managing temporary files for some effects
(e.g. noiseprof + noisered in sox) for splitfx users.
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We cannot afford to break the entire player because somebody
enqueued a non-existent file (or enqueued and later renamed it).
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This makes things easier for scheduling/expansion since we
won't have to deal with floating point numbers when we work
directly with with sample counts (like the rest of dtas).
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It's been a while, and I've lost my train of thought regarding
this system a bit :<
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While we're at it, document the splitfx manpage and
make the example suitable for tests.
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This reduces memory overhead by a few bytes by eliminating
constant lookups and unnecessary inclusions.
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While the splitfx source is intended for applying effects to
untracked audio files (e.g. transfers of vinyl records or
live concert recordings), it should be useful for applying
effects to an already-tracked recording.
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This should allow users to setup effects in a more standardized
fashion and avoid needing to specify a "command:" field in their
splitfx YAML files in the general case.
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Since splitfx YAML files are intended to be frequently edited and
modified by the user, we'll support automatically restarting the
source when the user saves changes via their favorite $EDITOR
This change is only for Linux users. However, sleepy_penguin
supports kqueue nowadays so a patch to support such functionality
would be appreciated.
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This becomes useful for systems without inotify when we're editing
YAML (or whatever) files frequently and want changes to be reflected
right away during playback. This is a weaker version of the plain
"restart" command, which restarts the entire playback chain.
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This allows splitfx users to test CUE breakpoints and run
file-specific effects without interrupting their normal flow.
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Merely converting the `before' source information to a hash is not
enough, as the `env' sub-hash is mosified in-place and shared with
the `after' hash. So use `inspect' to serialize and snapshot the
env and rely on a string comparison.
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Favor IO.select over IO#wait since the latter makes another
ioctl syscall (which we'll make anyways for IO#nread).
Having BasicSocket#recvmsg and recvmsg_nonblock detect the buffer
size requires extra syscalls, so pass explict maxmesglen, flags, and
maxcontrollen args to elide auto-detection since we already have the
buffered amount from IO#nread.
This cuts more syscalls from the "dtas-tl cat" invocation with
larger tracklists.
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This is terser, reads better and generates smaller bytecode.
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Array#each already returns the array, so there's no need to
use the more confusing Array#map! block
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Followup to commit 698e1f04580839ea29647f285b39b88fcbb46071
"process: update comment for bug workaround"
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We're certain this is a workaround for a bug. We may remove the
workaround at some point in the future; but not until the rest of
the world has had a chance to upgrade, too.
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We only drop dead connections, not live ones. This is noticeable
on my home machine when using the "powersave" CPU governor.
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This generates smaller bytecode and avoids unnecessary captures.
Perhaps the Ruby optimizer can be taught to handle this
automatically.
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This generates smaller bytecode and avoids unnecessary captures.
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Occasionally, killing a sink from an external process could result in an
infinite loop due to the lack of close notification from __dst_error (in
DTAS::Buffer) up to the top-level event loop. Since it is not easy to
notify the top-level event loop, we'll detect closed IOs after-the-fact
and retry as needed in a cold rescue path.
This fixes an occasional error (usually when using a non-parallel make)
in the test suite:
TestPlayerIntegration#test_sink_killed_during_play:
Timeout::Error: execution expired
$HOME/dtas/test/player_integration.rb:57:in `sleep'
$HOME/dtas/test/player_integration.rb:57:in `block in wait_pid_dead'
$HOME/$RUBY/lib/ruby/2.2.0/timeout.rb:91:in `block in timeout'
$HOME/$RUBY/lib/ruby/2.2.0/timeout.rb:35:in `block in catch'
$HOME/$RUBY/lib/ruby/2.2.0/timeout.rb:35:in `catch'
$HOME/$RUBY/lib/ruby/2.2.0/timeout.rb:35:in `catch'
$HOME/$RUBY/lib/ruby/2.2.0/timeout.rb:106:in `timeout'
$HOME/dtas/test/player_integration.rb:54:in `wait_pid_dead'
test/test_player_integration.rb:42:in `test_sink_killed_during_play'
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This reduces captures and is more consistent with our other code.
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This avoids compatibility problems as File.expand_path respects the
"filesystem" encoding of Ruby. I'm not 100% sure this is correct,
as Ruby encoding support still confuses me, but this fixes a problem
where I attempted to add UTF-8 filename with non-US-ASCII characters
in it on ruby-trunk.
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This avoids captures
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This will not be needed after all.
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This is more generically supported via variables.
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The names are subject to change, but the idea is to
make multiple passes over the audio if effects overlap
and combine everything afterwards. Unedited portions
will be passed through sox (via trim and no other effects)
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I'm still normal, and still trolling, but 80x24.org will be epic :)
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This makes the code less verbose and avoids captures.
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This keeps us from doing an extra IO.select when we know the sink
buffer is readable (as we just registered a sink as writable).
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Avoid an additional select syscall in the splice path by injecting
the target checks into the main loop. We can do this because we
always process writers before readers. This adds additional
userspace processing, but it avoids one potentially expensive (and
potentially task-switching) syscall in many cases; so it should be
worth it to avoid skipping with small buffer.
This should avoid buffer underuns with mixed-sized buffers when
using multiple sinks.
This could work for the read_write path, too, but I don't
use that enough and this change may still be buggy even
for splice users.
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Favor &:method block calls to avoid captures.
Delay the check for inflight bytes while we're at it,
since we may never need the result of FIONREAD.
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We do not need a begin block here, callers will deal with it.
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This is slightly easier-to-read and avoids capturing local
variables.
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We are Ruby 1.9+ only, so shorten our code just a little
and hopefully make things easier-to-read.
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This non-Linux code path probably broke when we minimized our
use of IO#nread.
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splitfx is incapable of knowing in 100% of cases whether dithering
should be used (as it has no visibility into sox internals), so
support disabling it completely via command-line.
This is like the identical sox option, and passed to sox(1), too.
This feature is useful for splitting already-mastered 16-bit
recordings.
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This allows parsing and will eventually interact with trimfx.
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Only lightly tested, but this should give us some idea of where
we'll be going...
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This will be dependent upon sox for the trim effect,
at least. Other bits will be exposed as needed.
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This will allow editing individual portions of audio of
a larger file while creating cross fade effects to join
them.
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This is to be compatible with Rubinius, but also works with MRI.
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We don't deal with user-space buffers, so we should be fine
using this compatibility layer and only checking the kernel
buffers (until rbx implements a proper solution).
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This simplifies the check for the current track and
won't attempt to compare track IDs not on the tracklist.
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Otherwise we end up going past the end of the list.
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This reduces duplication for sox-based components, which our audio
editing components will rely on. We only use avconv/ffmpeg for odd
formats which sox does not play natively, and editing audio in
strange/lossy formats is undesirable anyways.
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We don't want to repeat tracks if a track was added to a spot
before the current position on the tracklist.
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