diff options
Diffstat (limited to '')
| -rw-r--r-- | Makefile.am | 3 | ||||
| -rw-r--r-- | src/pcm_convert.c | 27 | ||||
| -rw-r--r-- | src/pcm_convert.h | 3 | ||||
| -rw-r--r-- | src/pcm_dsd.c | 85 | ||||
| -rw-r--r-- | src/pcm_dsd.h | 52 |
5 files changed, 170 insertions, 0 deletions
diff --git a/Makefile.am b/Makefile.am index 4f9a30780..c7089ae13 100644 --- a/Makefile.am +++ b/Makefile.am @@ -391,6 +391,8 @@ endif libpcm_a_SOURCES = \ src/pcm_buffer.c src/pcm_buffer.h \ src/pcm_convert.c src/pcm_convert.h \ + src/dsd2pcm/dsd2pcm.c src/dsd2pcm/dsd2pcm.h \ + src/pcm_dsd.c src/pcm_dsd.h \ src/pcm_volume.c src/pcm_volume.h \ src/pcm_mix.c src/pcm_mix.h \ src/pcm_byteswap.c src/pcm_byteswap.h \ @@ -1150,6 +1152,7 @@ test_run_normalize_LDADD = \ $(GLIB_LIBS) test_run_convert_SOURCES = test/run_convert.c \ + src/dsd2pcm/dsd2pcm.c \ src/fifo_buffer.c \ src/audio_format.c \ src/audio_check.c \ diff --git a/src/pcm_convert.c b/src/pcm_convert.c index 0c4e19b9c..62e36899a 100644 --- a/src/pcm_convert.c +++ b/src/pcm_convert.c @@ -38,6 +38,7 @@ void pcm_convert_init(struct pcm_convert_state *state) { memset(state, 0, sizeof(*state)); + pcm_dsd_init(&state->dsd); pcm_resample_init(&state->resample); pcm_dither_24_init(&state->dither); @@ -49,6 +50,7 @@ void pcm_convert_init(struct pcm_convert_state *state) void pcm_convert_deinit(struct pcm_convert_state *state) { + pcm_dsd_deinit(&state->dsd); pcm_resample_deinit(&state->resample); pcm_buffer_deinit(&state->format_buffer); @@ -60,6 +62,7 @@ void pcm_convert_deinit(struct pcm_convert_state *state) void pcm_convert_reset(struct pcm_convert_state *state) { + pcm_dsd_reset(&state->dsd); pcm_resample_reset(&state->resample); } @@ -403,6 +406,30 @@ 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) { + 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, + &f_size); + if (f == NULL) { + g_set_error_literal(error_r, pcm_convert_quark(), 0, + "DSD to PCM conversion failed"); + return NULL; + } + + float_format = *src_format; + float_format.format = SAMPLE_FORMAT_FLOAT; + + src_format = &float_format; + src = f; + src_size = f_size; + } + switch (dest_format->format) { case SAMPLE_FORMAT_S16: return pcm_convert_16(state, diff --git a/src/pcm_convert.h b/src/pcm_convert.h index 41a9f9380..0a0f85681 100644 --- a/src/pcm_convert.h +++ b/src/pcm_convert.h @@ -20,6 +20,7 @@ #ifndef PCM_CONVERT_H #define PCM_CONVERT_H +#include "pcm_dsd.h" #include "pcm_resample.h" #include "pcm_dither.h" #include "pcm_buffer.h" @@ -32,6 +33,8 @@ struct audio_format; * conversions. */ struct pcm_convert_state { + struct pcm_dsd dsd; + struct pcm_resample_state resample; struct pcm_dither dither; diff --git a/src/pcm_dsd.c b/src/pcm_dsd.c new file mode 100644 index 000000000..76266b4cc --- /dev/null +++ b/src/pcm_dsd.c @@ -0,0 +1,85 @@ +/* + * Copyright (C) 2003-2012 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 "pcm_dsd.h" +#include "dsd2pcm/dsd2pcm.h" + +#include <glib.h> +#include <string.h> + +void +pcm_dsd_init(struct pcm_dsd *dsd) +{ + pcm_buffer_init(&dsd->buffer); + + memset(dsd->dsd2pcm, 0, sizeof(dsd->dsd2pcm)); +} + +void +pcm_dsd_deinit(struct pcm_dsd *dsd) +{ + pcm_buffer_deinit(&dsd->buffer); + + for (unsigned i = 0; i < G_N_ELEMENTS(dsd->dsd2pcm); ++i) + if (dsd->dsd2pcm[i] != NULL) + dsd2pcm_destroy(dsd->dsd2pcm[i]); +} + +void +pcm_dsd_reset(struct pcm_dsd *dsd) +{ + for (unsigned i = 0; i < G_N_ELEMENTS(dsd->dsd2pcm); ++i) + if (dsd->dsd2pcm[i] != NULL) + dsd2pcm_reset(dsd->dsd2pcm[i]); +} + +const float * +pcm_dsd_to_float(struct pcm_dsd *dsd, unsigned channels, bool lsbfirst, + const uint8_t *src, size_t src_size, + size_t *dest_size_r) +{ + assert(dsd != NULL); + assert(src != NULL); + assert(src_size > 0); + assert(src_size % channels == 0); + assert(channels <= G_N_ELEMENTS(dsd->dsd2pcm)); + + const unsigned num_samples = src_size; + const unsigned num_frames = src_size / channels; + + float *dest; + const size_t dest_size = num_samples * sizeof(*dest); + *dest_size_r = dest_size; + dest = pcm_buffer_get(&dsd->buffer, dest_size); + + for (unsigned c = 0; c < channels; ++c) { + if (dsd->dsd2pcm[c] == NULL) { + dsd->dsd2pcm[c] = dsd2pcm_init(); + if (dsd->dsd2pcm[c] == NULL) + return NULL; + } + + dsd2pcm_translate(dsd->dsd2pcm[c], num_frames, + src + c, channels, + lsbfirst, dest + c, channels); + } + + return dest; +} diff --git a/src/pcm_dsd.h b/src/pcm_dsd.h new file mode 100644 index 000000000..85c2455aa --- /dev/null +++ b/src/pcm_dsd.h @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2003-2012 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. + */ + +#ifndef MPD_PCM_DSD_H +#define MPD_PCM_DSD_H + +#include "check.h" +#include "pcm_buffer.h" + +#include <stdbool.h> +#include <stdint.h> + +/** + * Wrapper for the dsd2pcm library. + */ +struct pcm_dsd { + struct pcm_buffer buffer; + + struct dsd2pcm_ctx_s *dsd2pcm[32]; +}; + +void +pcm_dsd_init(struct pcm_dsd *dsd); + +void +pcm_dsd_deinit(struct pcm_dsd *dsd); + +void +pcm_dsd_reset(struct pcm_dsd *dsd); + +const float * +pcm_dsd_to_float(struct pcm_dsd *dsd, unsigned channels, bool lsbfirst, + const uint8_t *src, size_t src_size, + size_t *dest_size_r); + +#endif |