Fix lossless capability reporting for partial read

When reading partial chunks, and when returning partial data, it is
essential to maintain this lossless chunk status across either whole or
partial chunk reads. Otherwise, the converter chain sees the lossless
flag constantly changing on lossless files, such as PCM or DSD, and
causes the DSD decimator and/or resampler to be torn down and reset
repeatedly, causing glitches in the audio.

The glitch was not, in fact, with the decimator itself, and was
occurring to a degree without it, as it would be restarting the
resampler repeatedly as well.

Fixes #367

Signed-off-by: Christopher Snowhill <[email protected]>

Audio/Chain/ChunkList.m

@@ -475,6 +475,7 @@ - (AudioChunk *)removeSamples:(size_t)maxFrameCount {
 		AudioChunk *ret = [[AudioChunk alloc] init];
 		[ret setFormat:[chunk format]];
 		[ret setChannelConfig:[chunk channelConfig]];
+		[ret setLossless:[chunk lossless]];
 		[ret assignData:removedData];
 		listDuration -= [ret duration];
 		inRemover = NO;
@@ -510,6 +511,7 @@ - (AudioChunk *)removeSamplesAsFloat32:(size_t)maxFrameCount {
 		AudioChunk *ret = [[AudioChunk alloc] init];
 		[ret setFormat:[chunk format]];
 		[ret setChannelConfig:[chunk channelConfig]];
+		[ret setLossless:[chunk lossless]];
 		[ret assignData:removedData];
 		listDuration -= [ret duration];
 		inRemover = NO;