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-rw-r--r--src/pcm/PcmDsdUsb.cxx96
1 files changed, 0 insertions, 96 deletions
diff --git a/src/pcm/PcmDsdUsb.cxx b/src/pcm/PcmDsdUsb.cxx
deleted file mode 100644
index 2d0f33a15..000000000
--- a/src/pcm/PcmDsdUsb.cxx
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright (C) 2003-2013 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-#include "PcmDsdUsb.hxx"
-#include "PcmBuffer.hxx"
-#include "AudioFormat.hxx"
-
-constexpr
-static inline uint32_t
-pcm_two_dsd_to_usb_marker1(uint8_t a, uint8_t b)
-{
- return 0xff050000 | (a << 8) | b;
-}
-
-constexpr
-static inline uint32_t
-pcm_two_dsd_to_usb_marker2(uint8_t a, uint8_t b)
-{
- return 0xfffa0000 | (a << 8) | b;
-}
-
-
-const uint32_t *
-pcm_dsd_to_usb(PcmBuffer &buffer, unsigned channels,
- const uint8_t *src, size_t src_size,
- size_t *dest_size_r)
-{
- assert(audio_valid_channel_count(channels));
- assert(src != NULL);
- assert(src_size > 0);
- assert(src_size % channels == 0);
-
- const unsigned num_src_samples = src_size;
- const unsigned num_src_frames = num_src_samples / channels;
-
- /* this rounds down and discards the last odd frame; not
- elegant, but good enough for now */
- const unsigned num_frames = num_src_frames / 2;
- const unsigned num_samples = num_frames * channels;
-
- const size_t dest_size = num_samples * 4;
- *dest_size_r = dest_size;
- uint32_t *const dest0 = (uint32_t *)buffer.Get(dest_size),
- *dest = dest0;
-
- for (unsigned i = num_frames / 2; i > 0; --i) {
- for (unsigned c = channels; c > 0; --c) {
- /* each 24 bit sample has 16 DSD sample bits
- plus the magic 0x05 marker */
-
- *dest++ = pcm_two_dsd_to_usb_marker1(src[0], src[channels]);
-
- /* seek the source pointer to the next
- channel */
- ++src;
- }
-
- /* skip the second byte of each channel, because we
- have already copied it */
- src += channels;
-
- for (unsigned c = channels; c > 0; --c) {
- /* each 24 bit sample has 16 DSD sample bits
- plus the magic 0xfa marker */
-
- *dest++ = pcm_two_dsd_to_usb_marker2(src[0], src[channels]);
-
- /* seek the source pointer to the next
- channel */
- ++src;
- }
-
- /* skip the second byte of each channel, because we
- have already copied it */
- src += channels;
- }
-
- return dest0;
-}