player: support bypass for rate, bits, channel

This may be used to avoid automatic:

* resampling (rate)
* down/upmixing (channel)
* dither/truncation (bits)

Using any bypass mode means we can no longer guarantee gapless
playback for audio collections where rate, channel, or bits vary.
This can however be useful when CPU usage is too high.  This may
also be useful in audio engineering situations.

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/dtas/format.rb b/lib/dtas/format.rb
index e9da16f..223d9c0 100644
--- a/lib/dtas/format.rb
+++ b/lib/dtas/format.rb
@@ -81,6 +81,14 @@ class DTAS::Format # :nodoc:
     ivars_to_hash(SIVS)
   end
 
+  def ==(other)
+    a = to_hash
+    b = other.to_hash
+    a["bits"] ||= bits_per_sample
+    b["bits"] ||= other.bits_per_sample
+    a == b
+  end
+
   # for the _decoded_ output
   def bits_per_sample
     return @bits if @bits