audio_format: remove the format SAMPLE_FORMAT_DSD_LSBFIRST

This format is unused since the DSDIFF decoder plugin now reverses the
bit order.

11 files changed, 4 insertions, 36 deletions

diff --git a/src/audio_format.c b/src/audio_format.c
index 8222f0a53..658197528 100644
--- a/src/audio_format.c
+++ b/src/audio_format.c
@@ -75,9 +75,6 @@ sample_format_to_string(enum sample_format format)
 	case SAMPLE_FORMAT_DSD:
 		return "dsd";
 
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
-		return "dsdl";
-
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		return "dsdusb";
 	}
diff --git a/src/audio_format.h b/src/audio_format.h
index 5bb2ed9fb..293dee1c1 100644
--- a/src/audio_format.h
+++ b/src/audio_format.h
@@ -57,12 +57,6 @@ enum sample_format {
 	SAMPLE_FORMAT_DSD,
 
 	/**
-	 * Same as #SAMPLE_FORMAT_DSD, but the least significant bit
-	 * comes first.
-	 */
-	SAMPLE_FORMAT_DSD_LSBFIRST,
-
-	/**
 	 * DSD packed in 24 bit samples (no padding), according to the
 	 * dCS suggested standard:
 	 * http://www.dcsltd.co.uk/page/assets/DSDoverUSB.pdf
@@ -195,7 +189,6 @@ audio_valid_sample_format(enum sample_format format)
 	case SAMPLE_FORMAT_S32:
 	case SAMPLE_FORMAT_FLOAT:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		return true;
 
@@ -275,7 +268,6 @@ sample_format_size(enum sample_format format)
 		return 4;
 
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 		/* each frame has 8 samples per channel */
 		return 1;
 
diff --git a/src/audio_parser.c b/src/audio_parser.c
index 4ee2bda0c..d2d8dc950 100644
--- a/src/audio_parser.c
+++ b/src/audio_parser.c
@@ -94,14 +94,8 @@ parse_sample_format(const char *src, bool mask,
 	}
 
 	if (memcmp(src, "dsd", 3) == 0) {
-		if (src[3] == 'l') {
-			*sample_format_r = SAMPLE_FORMAT_DSD_LSBFIRST;
-			*endptr_r = src + 4;
-		} else {
-			*sample_format_r = SAMPLE_FORMAT_DSD;
-			*endptr_r = src + 3;
-		}
-
+		*sample_format_r = SAMPLE_FORMAT_DSD;
+		*endptr_r = src + 3;
 		return true;
 	}
 
diff --git a/src/decoder/flac_pcm.c b/src/decoder/flac_pcm.c
index 5f7d382a1..480fd6393 100644
--- a/src/decoder/flac_pcm.c
+++ b/src/decoder/flac_pcm.c
@@ -104,7 +104,6 @@ flac_convert(void *dest,
 	case SAMPLE_FORMAT_S24:
 	case SAMPLE_FORMAT_FLOAT:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 	case SAMPLE_FORMAT_UNDEFINED:
 		/* unreachable */
diff --git a/src/output/alsa_output_plugin.c b/src/output/alsa_output_plugin.c
index 4a51fcaed..adfbc9f0d 100644
--- a/src/output/alsa_output_plugin.c
+++ b/src/output/alsa_output_plugin.c
@@ -195,7 +195,6 @@ get_bitformat(enum sample_format sample_format)
 	switch (sample_format) {
 	case SAMPLE_FORMAT_UNDEFINED:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		return SND_PCM_FORMAT_UNKNOWN;
 
diff --git a/src/output/oss_output_plugin.c b/src/output/oss_output_plugin.c
index 0868cf7e7..2309f0f3c 100644
--- a/src/output/oss_output_plugin.c
+++ b/src/output/oss_output_plugin.c
@@ -397,7 +397,6 @@ sample_format_to_oss(enum sample_format format)
 	case SAMPLE_FORMAT_UNDEFINED:
 	case SAMPLE_FORMAT_FLOAT:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		return AFMT_QUERY;
 
diff --git a/src/pcm_byteswap.c b/src/pcm_byteswap.c
index f57957a94..d56c3a87c 100644
--- a/src/pcm_byteswap.c
+++ b/src/pcm_byteswap.c
@@ -76,7 +76,6 @@ pcm_byteswap(struct pcm_buffer *buffer, enum sample_format format,
 
 	case SAMPLE_FORMAT_S8:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 		return src;
 
 	case SAMPLE_FORMAT_S16:
diff --git a/src/pcm_convert.c b/src/pcm_convert.c
index 2dfd3c734..4721d2496 100644
--- a/src/pcm_convert.c
+++ b/src/pcm_convert.c
@@ -81,7 +81,6 @@ pcm_convert_channels(struct pcm_buffer *buffer, enum sample_format format,
 	case SAMPLE_FORMAT_S24:
 	case SAMPLE_FORMAT_FLOAT:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		g_set_error(error_r, pcm_convert_quark(), 0,
 			    "Channel conversion not implemented for format '%s'",
@@ -408,14 +407,11 @@ pcm_convert(struct pcm_convert_state *state,
 	}
 
 	struct audio_format float_format;
-	if (src_format->format == SAMPLE_FORMAT_DSD ||
-	    src_format->format == SAMPLE_FORMAT_DSD_LSBFIRST) {
+	if (src_format->format == SAMPLE_FORMAT_DSD) {
 		size_t f_size;
-		const bool lsbfirst =
-			src_format->format == SAMPLE_FORMAT_DSD_LSBFIRST;
 		const float *f = pcm_dsd_to_float(&state->dsd,
 						  src_format->channels,
-						  lsbfirst, src, src_size,
+						  false, src, src_size,
 						  &f_size);
 		if (f == NULL) {
 			g_set_error_literal(error_r, pcm_convert_quark(), 0,
diff --git a/src/pcm_format.c b/src/pcm_format.c
index ecc1ee1c9..31de2200e 100644
--- a/src/pcm_format.c
+++ b/src/pcm_format.c
@@ -148,7 +148,6 @@ pcm_convert_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither,
 	switch (src_format) {
 	case SAMPLE_FORMAT_UNDEFINED:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		break;
 
@@ -269,7 +268,6 @@ pcm_convert_to_24(struct pcm_buffer *buffer,
 	switch (src_format) {
 	case SAMPLE_FORMAT_UNDEFINED:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		break;
 
@@ -396,7 +394,6 @@ pcm_convert_to_32(struct pcm_buffer *buffer,
 	switch (src_format) {
 	case SAMPLE_FORMAT_UNDEFINED:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		break;
 
@@ -534,7 +531,6 @@ pcm_convert_to_float(struct pcm_buffer *buffer,
 	switch (src_format) {
 	case SAMPLE_FORMAT_UNDEFINED:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		break;
 
diff --git a/src/pcm_mix.c b/src/pcm_mix.c
index 0fb7b6dcd..45cc8fe9d 100644
--- a/src/pcm_mix.c
+++ b/src/pcm_mix.c
@@ -121,7 +121,6 @@ pcm_add_vol(void *buffer1, const void *buffer2, size_t size,
 	case SAMPLE_FORMAT_UNDEFINED:
 	case SAMPLE_FORMAT_S24:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		/* not implemented */
 		return false;
@@ -233,7 +232,6 @@ pcm_add(void *buffer1, const void *buffer2, size_t size,
 	case SAMPLE_FORMAT_UNDEFINED:
 	case SAMPLE_FORMAT_S24:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		/* not implemented */
 		return false;
diff --git a/src/pcm_volume.c b/src/pcm_volume.c
index c83ee0f7f..42beeb9bd 100644
--- a/src/pcm_volume.c
+++ b/src/pcm_volume.c
@@ -160,7 +160,6 @@ pcm_volume(void *buffer, size_t length,
 	case SAMPLE_FORMAT_UNDEFINED:
 	case SAMPLE_FORMAT_S24:
 	case SAMPLE_FORMAT_DSD:
-	case SAMPLE_FORMAT_DSD_LSBFIRST:
 	case SAMPLE_FORMAT_DSD_OVER_USB:
 		/* not implemented */
 		return false;