[PATCH] splitfx: --bits and --rate for quick-n-dirty generic targets

[Eric Wong]

generic targets (e.g. "wav") is useful for quickly checking if
clipping is introduced by dither and resampling, so we'll support
changing the sample rate and bits-per-sample from the command-line
so users don't need to setup their own targets or wait on FLAC
encoding.
---
Documentation/dtas-splitfx.txt | 6 ++++++
bin/dtas-splitfx | 2 ++
lib/dtas/splitfx.rb | 6 ++++++
3 files changed, 14 insertions(+)

diff --git a/Documentation/dtas-splitfx.txt b/Documentation/dtas-splitfx.txt
index 38c1cca..049371f 100644
--- a/Documentation/dtas-splitfx.txt
+++ b/Documentation/dtas-splitfx.txt
@@ -45,6 +45,12 @@ to use ecasound(1), too.
: Set the compression factor passed to sox(1). See soxformat(7)
for more information on how it works across different formats.

+-r, \--rate RATE
+: Override the output sample rate in the specified TARGET
+
+-b, \--bits BITS
+: Override the output bit depth in the specified TARGET
+
# FILE FORMAT

* infile - string, the pathname of the original audio file
diff --git a/bin/dtas-splitfx b/bin/dtas-splitfx
index edd7dd3..b5741a0 100755
--- a/bin/dtas-splitfx
+++ b/bin/dtas-splitfx
@@ -16,6 +16,8 @@ OptionParser.new('', 24, ' ') do |op|
op.on('-D', '--no-dither') { |val| opts[:no_dither] = true }
op.on('-O', '--outdir OUTDIR') { |val| opts[:outdir] = val }
op.on('-C', '--compression FACTOR') { |val| opts[:compression] = val }
+ op.on('-r', '--rate RATE') { |val| opts[:rate] = val }
+ op.on('-b', '--bits RATE', Integer) { |val| opts[:bits] = val }
op.parse!(ARGV)
end

diff --git a/lib/dtas/splitfx.rb b/lib/dtas/splitfx.rb
index 5b04854..a14d221 100644
--- a/lib/dtas/splitfx.rb
+++ b/lib/dtas/splitfx.rb
@@ -57,6 +57,8 @@ class DTAS::SplitFX # :nodoc:
@infile = nil
@outdir = nil
@compression = nil
+ @rate = nil
+ @bits = nil
@targets = {
"flac-cdda" => {
"command" => CMD,
@@ -157,6 +159,8 @@ class DTAS::SplitFX # :nodoc:
def generic_target(target = "flac")
outfmt = @infmt.dup
outfmt.type = target
+ outfmt.bits = @bits if @bits
+ outfmt.rate = @rate if @rate
{ "command" => CMD, "format" => outfmt }
end

@@ -333,6 +337,8 @@ class DTAS::SplitFX # :nodoc:
FileUtils.mkpath(@outdir)
end
@compression = opts[:compression]
+ @rate = opts[:rate]
+ @bits = opts[:bits]

fails = []
tracks = @tracks.dup