Merge remote-tracking branch 'origin/kitkat-dev'
diff --git a/Android.mk b/Android.mk
new file mode 100644
index 0000000..104dfef
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,22 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES:= $(LOCAL_PATH)/include
+LOCAL_SRC_FILES:= compress.c utils.c
+LOCAL_MODULE := libtinycompress
+LOCAL_SHARED_LIBRARIES:= libcutils libutils
+LOCAL_MODULE_TAGS := optional
+LOCAL_PRELINK_MODULE := false
+
+include $(BUILD_SHARED_LIBRARY)
+
+include $(CLEAR_VARS)
+
+LOCAL_C_INCLUDES:= $(LOCAL_PATH)/include
+LOCAL_SRC_FILES:= cplay.c
+LOCAL_MODULE := cplay
+LOCAL_SHARED_LIBRARIES:= libcutils libutils libtinycompress
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_EXECUTABLE)
+
diff --git a/MODULE_LICENSE_BSD b/MODULE_LICENSE_BSD
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/MODULE_LICENSE_BSD
diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..5af5078
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,262 @@
+BSD LICENSE
+
+tinycompress library for compress audio offload in alsa
+Copyright (c) 2011-2012, Intel Corporation
+All rights reserved.
+
+Author: Vinod Koul <vinod.koul@linux.intel.com>
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+Neither the name of Intel Corporation nor the names of its contributors
+may be used to endorse or promote products derived from this software
+without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+THE POSSIBILITY OF SUCH DAMAGE.
+
+LGPL LICENSE
+
+tinycompress library for compress audio offload in alsa
+Copyright (c) 2011-2012, Intel Corporation.
+
+
+This program is free software; you can redistribute it and/or modify it
+under the terms and conditions of the GNU Lesser General Public License,
+version 2.1, as published by the Free Software Foundation.
+
+This program is distributed in the hope it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this program; if not, write to
+the Free Software Foundation, Inc.,
+51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+===============================================================================
+
+BSD LICENSE
+
+tinyplay command line player for compress audio offload in alsa
+Copyright (c) 2011-2012, Intel Corporation
+All rights reserved.
+
+Author: Vinod Koul <vinod.koul@linux.intel.com>
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+Neither the name of Intel Corporation nor the names of its contributors
+may be used to endorse or promote products derived from this software
+without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+THE POSSIBILITY OF SUCH DAMAGE.
+
+LGPL LICENSE
+
+tinyplay command line player for compress audio offload in alsa
+Copyright (c) 2011-2012, Intel Corporation.
+
+This program is free software; you can redistribute it and/or modify it
+under the terms and conditions of the GNU Lesser General Public License,
+version 2.1, as published by the Free Software Foundation.
+
+This program is distributed in the hope it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this program; if not, write to
+the Free Software Foundation, Inc.,
+51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+===============================================================================
+
+BSD LICENSE
+
+mp3 header and prasing
+Copyright (c) 2011-2012, Intel Corporation
+All rights reserved.
+
+Author: Vinod Koul <vinod.koul@linux.intel.com>
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+Neither the name of Intel Corporation nor the names of its contributors
+may be used to endorse or promote products derived from this software
+without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+THE POSSIBILITY OF SUCH DAMAGE.
+
+LGPL LICENSE
+
+mp3 header and parsing
+Copyright (c) 2011-2012, Intel Corporation.
+
+
+This program is free software; you can redistribute it and/or modify it
+under the terms and conditions of the GNU Lesser General Public License,
+version 2.1, as published by the Free Software Foundation.
+
+This program is distributed in the hope it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this program; if not, write to
+the Free Software Foundation, Inc.,
+51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+===============================================================================
+
+BSD LICENSE
+
+Copyright (c) 2011-2012, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+Neither the name of Intel Corporation nor the names of its contributors
+may be used to endorse or promote products derived from this software
+without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+THE POSSIBILITY OF SUCH DAMAGE.
+
+LGPL LICENSE
+
+tinycompress library for compress audio offload in alsa
+Copyright (c) 2011-2012, Intel Corporation.
+
+
+This program is free software; you can redistribute it and/or modify it
+under the terms and conditions of the GNU Lesser General Public License,
+version 2.1, as published by the Free Software Foundation.
+
+This program is distributed in the hope it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this program; if not, write to
+the Free Software Foundation, Inc.,
+51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+===============================================================================
+
+BSD LICENSE
+
+tinycompress utility functions
+Copyright (c) 2011-2013, Intel Corporation
+All rights reserved.
+
+Author: Vinod Koul <vinod.koul@intel.com>
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+Neither the name of Intel Corporation nor the names of its contributors
+may be used to endorse or promote products derived from this software
+without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+THE POSSIBILITY OF SUCH DAMAGE.
+
+LGPL LICENSE
+
+tinycompress utility functions
+Copyright (c) 2011-2013, Intel Corporation
+
+This program is free software; you can redistribute it and/or modify it
+under the terms and conditions of the GNU Lesser General Public License,
+version 2.1, as published by the Free Software Foundation.
+
+This program is distributed in the hope it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this program; if not, write to
+the Free Software Foundation, Inc.,
+51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
diff --git a/README b/README
new file mode 100644
index 0000000..73c19a6
--- /dev/null
+++ b/README
@@ -0,0 +1,30 @@
+ README for tinycompress
+ =======================
+ vinod.koul@linux.intel.com
+ ==========================
+
+1. WHAT
+ tinycompress is a userspace library for anyone who wants to use the ALSA
+compressed APIs introduced in Linux 3.3
+This library provides the APIs to open a ALSA compressed device and read/write
+compressed data like MP3 etc to it.
+
+ This also includes a utility command line player (cplay) which demonstrates
+the usage of this API. Currently this contains support for playing the mp3 format
+
+2. WHERE
+ The library can found in alsa-project.org
+Git: git clone git://git.alsa-project.org/tinycompress.git
+Http: http://git.alsa-project.org/?p=tinycompress.git
+
+3. PATCHES
+ Please send any enhancements/fixes to alsa developer mailing list at:
+alsa-devel@alsa-project.org.
+
+4. LICENSE
+ tinycompress is provided under LGPL and BSD dual license
+
+5. CREDITS
+- Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> for library design
+- Navjot Singh <navjot.singh@intel.com> for writing the mp3 parser code
+
diff --git a/compress.c b/compress.c
new file mode 100644
index 0000000..5cd0966
--- /dev/null
+++ b/compress.c
@@ -0,0 +1,630 @@
+/*
+ * BSD LICENSE
+ *
+ * tinycompress library for compress audio offload in alsa
+ * Copyright (c) 2011-2012, Intel Corporation
+ * All rights reserved.
+ *
+ * Author: Vinod Koul <vinod.koul@linux.intel.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * Neither the name of Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * LGPL LICENSE
+ *
+ * tinycompress library for compress audio offload in alsa
+ * Copyright (c) 2011-2012, Intel Corporation.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU Lesser General Public License,
+ * version 2.1, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to
+ * the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <poll.h>
+#include <stdbool.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+#include <limits.h>
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#define __force
+#define __bitwise
+#define __user
+#include <sound/asound.h>
+#include "sound/compress_params.h"
+#include "sound/compress_offload.h"
+#include "tinycompress/tinycompress.h"
+
+#define COMPR_ERR_MAX 128
+
+/* Default maximum time we will wait in a poll() - 20 seconds */
+#define DEFAULT_MAX_POLL_WAIT_MS 20000
+
+struct compress {
+ int fd;
+ unsigned int flags;
+ char error[COMPR_ERR_MAX];
+ struct compr_config *config;
+ int running;
+ int max_poll_wait_ms;
+ int nonblocking;
+ unsigned int gapless_metadata;
+ unsigned int next_track;
+};
+
+static int oops(struct compress *compress, int e, const char *fmt, ...)
+{
+ va_list ap;
+ int sz;
+
+ va_start(ap, fmt);
+ vsnprintf(compress->error, COMPR_ERR_MAX, fmt, ap);
+ va_end(ap);
+ sz = strlen(compress->error);
+
+ snprintf(compress->error + sz, COMPR_ERR_MAX - sz,
+ ": %s", strerror(e));
+ errno = e;
+
+ return -1;
+}
+
+const char *compress_get_error(struct compress *compress)
+{
+ return compress->error;
+}
+static struct compress bad_compress = {
+ .fd = -1,
+};
+
+int is_compress_running(struct compress *compress)
+{
+ return ((compress->fd > 0) && compress->running) ? 1 : 0;
+}
+
+int is_compress_ready(struct compress *compress)
+{
+ return (compress->fd > 0) ? 1 : 0;
+}
+
+static int get_compress_version(struct compress *compress)
+{
+ int version = 0;
+
+ if (ioctl(compress->fd, SNDRV_COMPRESS_IOCTL_VERSION, &version)) {
+ oops(compress, errno, "cant read version");
+ return -1;
+ }
+ return version;
+}
+
+static bool _is_codec_supported(struct compress *compress, struct compr_config *config,
+ const struct snd_compr_caps *caps)
+{
+ bool codec = false;
+ unsigned int i;
+
+ for (i = 0; i < caps->num_codecs; i++) {
+ if (caps->codecs[i] == config->codec->id) {
+ /* found the codec */
+ codec = true;
+ break;
+ }
+ }
+ if (codec == false) {
+ oops(compress, ENXIO, "this codec is not supported");
+ return false;
+ }
+
+ if (config->fragment_size < caps->min_fragment_size) {
+ oops(compress, EINVAL, "requested fragment size %d is below min supported %d",
+ config->fragment_size, caps->min_fragment_size);
+ return false;
+ }
+ if (config->fragment_size > caps->max_fragment_size) {
+ oops(compress, EINVAL, "requested fragment size %d is above max supported %d",
+ config->fragment_size, caps->max_fragment_size);
+ return false;
+ }
+ if (config->fragments < caps->min_fragments) {
+ oops(compress, EINVAL, "requested fragments %d are below min supported %d",
+ config->fragments, caps->min_fragments);
+ return false;
+ }
+ if (config->fragments > caps->max_fragments) {
+ oops(compress, EINVAL, "requested fragments %d are above max supported %d",
+ config->fragments, caps->max_fragments);
+ return false;
+ }
+
+ /* TODO: match the codec properties */
+ return true;
+}
+
+static bool _is_codec_type_supported(int fd, struct snd_codec *codec)
+{
+ struct snd_compr_caps caps;
+ bool found = false;
+ unsigned int i;
+
+ if (ioctl(fd, SNDRV_COMPRESS_GET_CAPS, &caps)) {
+ oops(&bad_compress, errno, "cannot get device caps");
+ return false;
+ }
+
+ for (i = 0; i < caps.num_codecs; i++) {
+ if (caps.codecs[i] == codec->id) {
+ /* found the codec */
+ found = true;
+ break;
+ }
+ }
+ /* TODO: match the codec properties */
+ return found;
+}
+
+static inline void
+fill_compress_params(struct compr_config *config, struct snd_compr_params *params)
+{
+ params->buffer.fragment_size = config->fragment_size;
+ params->buffer.fragments = config->fragments;
+ memcpy(¶ms->codec, config->codec, sizeof(params->codec));
+}
+
+struct compress *compress_open(unsigned int card, unsigned int device,
+ unsigned int flags, struct compr_config *config)
+{
+ struct compress *compress;
+ struct snd_compr_params params;
+ struct snd_compr_caps caps;
+ char fn[256];
+
+ if (!config) {
+ oops(&bad_compress, EINVAL, "passed bad config");
+ return &bad_compress;
+ }
+
+ compress = calloc(1, sizeof(struct compress));
+ if (!compress) {
+ oops(&bad_compress, errno, "cannot allocate compress object");
+ return &bad_compress;
+ }
+
+ compress->next_track = 0;
+ compress->gapless_metadata = 0;
+ compress->config = calloc(1, sizeof(*config));
+ if (!compress->config)
+ goto input_fail;
+
+ snprintf(fn, sizeof(fn), "/dev/snd/comprC%uD%u", card, device);
+
+ compress->max_poll_wait_ms = DEFAULT_MAX_POLL_WAIT_MS;
+
+ compress->flags = flags;
+ if (!((flags & COMPRESS_OUT) || (flags & COMPRESS_IN))) {
+ oops(&bad_compress, EINVAL, "can't deduce device direction from given flags");
+ goto config_fail;
+ }
+
+ if (flags & COMPRESS_OUT) {
+ compress->fd = open(fn, O_RDONLY);
+ } else {
+ compress->fd = open(fn, O_WRONLY);
+ }
+ if (compress->fd < 0) {
+ oops(&bad_compress, errno, "cannot open device '%s'", fn);
+ goto config_fail;
+ }
+
+ if (ioctl(compress->fd, SNDRV_COMPRESS_GET_CAPS, &caps)) {
+ oops(compress, errno, "cannot get device caps");
+ goto codec_fail;
+ }
+
+ /* If caller passed "don't care" fill in default values */
+ if ((config->fragment_size == 0) || (config->fragments == 0)) {
+ config->fragment_size = caps.min_fragment_size;
+ config->fragments = caps.max_fragments;
+ }
+
+#if 0
+ /* FIXME need to turn this On when DSP supports
+ * and treat in no support case
+ */
+ if (_is_codec_supported(compress, config, &caps) == false) {
+ oops(compress, errno, "codec not supported\n");
+ goto codec_fail;
+ }
+#endif
+
+ memcpy(compress->config, config, sizeof(*compress->config));
+ fill_compress_params(config, ¶ms);
+
+ if (ioctl(compress->fd, SNDRV_COMPRESS_SET_PARAMS, ¶ms)) {
+ oops(&bad_compress, errno, "cannot set device");
+ goto codec_fail;
+ }
+
+ return compress;
+
+codec_fail:
+ close(compress->fd);
+ compress->fd = -1;
+config_fail:
+ free(compress->config);
+input_fail:
+ free(compress);
+ return &bad_compress;
+}
+
+void compress_close(struct compress *compress)
+{
+ if (compress == &bad_compress)
+ return;
+
+ if (compress->fd >= 0)
+ close(compress->fd);
+ compress->running = 0;
+ compress->fd = -1;
+ free(compress->config);
+ free(compress);
+}
+
+int compress_get_hpointer(struct compress *compress,
+ unsigned int *avail, struct timespec *tstamp)
+{
+ struct snd_compr_avail kavail;
+ __u64 time;
+
+ if (!is_compress_ready(compress))
+ return oops(compress, ENODEV, "device not ready");
+
+ if (ioctl(compress->fd, SNDRV_COMPRESS_AVAIL, &kavail))
+ return oops(compress, errno, "cannot get avail");
+ if (0 == kavail.tstamp.sampling_rate)
+ return oops(compress, ENODATA, "sample rate unknown");
+ *avail = (unsigned int)kavail.avail;
+ time = kavail.tstamp.pcm_io_frames / kavail.tstamp.sampling_rate;
+ tstamp->tv_sec = time;
+ time = kavail.tstamp.pcm_io_frames % kavail.tstamp.sampling_rate;
+ tstamp->tv_nsec = time * 1000000000 / kavail.tstamp.sampling_rate;
+ return 0;
+}
+
+int compress_get_tstamp(struct compress *compress,
+ unsigned long *samples, unsigned int *sampling_rate)
+{
+ struct snd_compr_tstamp ktstamp;
+
+ if (!is_compress_ready(compress))
+ return oops(compress, ENODEV, "device not ready");
+
+ if (ioctl(compress->fd, SNDRV_COMPRESS_TSTAMP, &ktstamp))
+ return oops(compress, errno, "cannot get tstamp");
+
+ *samples = ktstamp.pcm_io_frames;
+ *sampling_rate = ktstamp.sampling_rate;
+ return 0;
+}
+
+int compress_write(struct compress *compress, const void *buf, unsigned int size)
+{
+ struct snd_compr_avail avail;
+ struct pollfd fds;
+ int to_write = 0; /* zero indicates we haven't written yet */
+ int written, total = 0, ret;
+ const char* cbuf = buf;
+ const unsigned int frag_size = compress->config->fragment_size;
+
+ if (!(compress->flags & COMPRESS_IN))
+ return oops(compress, EINVAL, "Invalid flag set");
+ if (!is_compress_ready(compress))
+ return oops(compress, ENODEV, "device not ready");
+ fds.fd = compress->fd;
+ fds.events = POLLOUT;
+
+ /*TODO: treat auto start here first */
+ while (size) {
+ if (ioctl(compress->fd, SNDRV_COMPRESS_AVAIL, &avail))
+ return oops(compress, errno, "cannot get avail");
+
+ /* We can write if we have at least one fragment available
+ * or there is enough space for all remaining data
+ */
+ if ((avail.avail < frag_size) && (avail.avail < size)) {
+
+ if (compress->nonblocking)
+ return total;
+
+ ret = poll(&fds, 1, compress->max_poll_wait_ms);
+ if (fds.revents & POLLERR) {
+ return oops(compress, EIO, "poll returned error!");
+ }
+ /* A pause will cause -EBADFD or zero.
+ * This is not an error, just stop writing */
+ if ((ret == 0) || (ret == -EBADFD))
+ break;
+ if (ret < 0)
+ return oops(compress, errno, "poll error");
+ if (fds.revents & POLLOUT) {
+ continue;
+ }
+ }
+ /* write avail bytes */
+ if (size > avail.avail)
+ to_write = avail.avail;
+ else
+ to_write = size;
+ written = write(compress->fd, cbuf, to_write);
+ /* If play was paused the write returns -EBADFD */
+ if (written == -EBADFD)
+ break;
+ if (written < 0)
+ return oops(compress, errno, "write failed!");
+
+ size -= written;
+ cbuf += written;
+ total += written;
+ }
+ return total;
+}
+
+int compress_read(struct compress *compress, void *buf, unsigned int size)
+{
+ struct snd_compr_avail avail;
+ struct pollfd fds;
+ int to_read = 0;
+ int num_read, total = 0, ret;
+ char* cbuf = buf;
+ const unsigned int frag_size = compress->config->fragment_size;
+
+ if (!(compress->flags & COMPRESS_OUT))
+ return oops(compress, EINVAL, "Invalid flag set");
+ if (!is_compress_ready(compress))
+ return oops(compress, ENODEV, "device not ready");
+ fds.fd = compress->fd;
+ fds.events = POLLIN;
+
+ while (size) {
+ if (ioctl(compress->fd, SNDRV_COMPRESS_AVAIL, &avail))
+ return oops(compress, errno, "cannot get avail");
+
+ if ( (avail.avail < frag_size) && (avail.avail < size) ) {
+ /* Less than one fragment available and not at the
+ * end of the read, so poll
+ */
+ if (compress->nonblocking)
+ return total;
+
+ ret = poll(&fds, 1, compress->max_poll_wait_ms);
+ if (fds.revents & POLLERR) {
+ return oops(compress, EIO, "poll returned error!");
+ }
+ /* A pause will cause -EBADFD or zero.
+ * This is not an error, just stop reading */
+ if ((ret == 0) || (ret == -EBADFD))
+ break;
+ if (ret < 0)
+ return oops(compress, errno, "poll error");
+ if (fds.revents & POLLIN) {
+ continue;
+ }
+ }
+ /* read avail bytes */
+ if (size > avail.avail)
+ to_read = avail.avail;
+ else
+ to_read = size;
+ num_read = read(compress->fd, cbuf, to_read);
+ /* If play was paused the read returns -EBADFD */
+ if (num_read == -EBADFD)
+ break;
+ if (num_read < 0)
+ return oops(compress, errno, "read failed!");
+
+ size -= num_read;
+ cbuf += num_read;
+ total += num_read;
+ }
+
+ return total;
+}
+
+int compress_start(struct compress *compress)
+{
+ if (!is_compress_ready(compress))
+ return oops(compress, ENODEV, "device not ready");
+ if (ioctl(compress->fd, SNDRV_COMPRESS_START))
+ return oops(compress, errno, "cannot start the stream");
+ compress->running = 1;
+ return 0;
+
+}
+
+int compress_stop(struct compress *compress)
+{
+ if (!is_compress_running(compress))
+ return oops(compress, ENODEV, "device not ready");
+ if (ioctl(compress->fd, SNDRV_COMPRESS_STOP))
+ return oops(compress, errno, "cannot stop the stream");
+ return 0;
+}
+
+int compress_pause(struct compress *compress)
+{
+ if (!is_compress_running(compress))
+ return oops(compress, ENODEV, "device not ready");
+ if (ioctl(compress->fd, SNDRV_COMPRESS_PAUSE))
+ return oops(compress, errno, "cannot pause the stream");
+ return 0;
+}
+
+int compress_resume(struct compress *compress)
+{
+ if (ioctl(compress->fd, SNDRV_COMPRESS_RESUME))
+ return oops(compress, errno, "cannot resume the stream");
+ return 0;
+}
+
+int compress_drain(struct compress *compress)
+{
+ if (!is_compress_running(compress))
+ return oops(compress, ENODEV, "device not ready");
+ if (ioctl(compress->fd, SNDRV_COMPRESS_DRAIN))
+ return oops(compress, errno, "cannot drain the stream");
+ return 0;
+}
+
+int compress_partial_drain(struct compress *compress)
+{
+ if (!is_compress_running(compress))
+ return oops(compress, ENODEV, "device not ready");
+
+ if (!compress->next_track)
+ return oops(compress, EPERM, "next track not signalled");
+ if (ioctl(compress->fd, SNDRV_COMPRESS_PARTIAL_DRAIN))
+ return oops(compress, errno, "cannot drain the stream\n");
+ compress->next_track = 0;
+ return 0;
+}
+
+int compress_next_track(struct compress *compress)
+{
+ if (!is_compress_running(compress))
+ return oops(compress, ENODEV, "device not ready");
+
+ if (!compress->gapless_metadata)
+ return oops(compress, EPERM, "metadata not set");
+ if (ioctl(compress->fd, SNDRV_COMPRESS_NEXT_TRACK))
+ return oops(compress, errno, "cannot set next track\n");
+ compress->next_track = 1;
+ compress->gapless_metadata = 0;
+ return 0;
+}
+
+int compress_set_gapless_metadata(struct compress *compress,
+ struct compr_gapless_mdata *mdata)
+{
+ struct snd_compr_metadata metadata;
+ int version;
+
+ if (!is_compress_ready(compress))
+ return oops(compress, ENODEV, "device not ready");
+
+ version = get_compress_version(compress);
+ if (version <= 0)
+ return -1;
+
+ if (version < SNDRV_PROTOCOL_VERSION(0, 1, 1))
+ return oops(compress, ENXIO, "gapless apis not supported in kernel");
+
+ metadata.key = SNDRV_COMPRESS_ENCODER_PADDING;
+ metadata.value[0] = mdata->encoder_padding;
+ if (ioctl(compress->fd, SNDRV_COMPRESS_SET_METADATA, &metadata))
+ return oops(compress, errno, "can't set metadata for stream\n");
+
+ metadata.key = SNDRV_COMPRESS_ENCODER_DELAY;
+ metadata.value[0] = mdata->encoder_delay;
+ if (ioctl(compress->fd, SNDRV_COMPRESS_SET_METADATA, &metadata))
+ return oops(compress, errno, "can't set metadata for stream\n");
+ compress->gapless_metadata = 1;
+ return 0;
+}
+
+bool is_codec_supported(unsigned int card, unsigned int device,
+ unsigned int flags, struct snd_codec *codec)
+{
+ unsigned int dev_flag;
+ bool ret;
+ int fd;
+ char fn[256];
+
+ snprintf(fn, sizeof(fn), "/dev/snd/comprC%uD%u", card, device);
+
+ if (flags & COMPRESS_OUT)
+ dev_flag = O_RDONLY;
+ else
+ dev_flag = O_WRONLY;
+
+ fd = open(fn, dev_flag);
+ if (fd < 0)
+ return oops(&bad_compress, errno, "cannot open device '%s'", fn);
+
+ ret = _is_codec_type_supported(fd, codec);
+
+ close(fd);
+ return ret;
+}
+
+void compress_set_max_poll_wait(struct compress *compress, int milliseconds)
+{
+ compress->max_poll_wait_ms = milliseconds;
+}
+
+void compress_nonblock(struct compress *compress, int nonblock)
+{
+ compress->nonblocking = !!nonblock;
+}
+
+int compress_wait(struct compress *compress, int timeout_ms)
+{
+ struct pollfd fds;
+ int ret;
+
+ fds.fd = compress->fd;
+ fds.events = POLLOUT | POLLIN;
+
+ ret = poll(&fds, 1, timeout_ms);
+ if (fds.revents & POLLERR) {
+ return oops(compress, EIO, "poll returned error!");
+ }
+ /* A pause will cause -EBADFD or zero. */
+ if ((ret < 0) && (ret != -EBADFD))
+ return oops(compress, errno, "poll error");
+ if (fds.revents & (POLLOUT | POLLIN)) {
+ return 0;
+ }
+ return ret;
+}
+
diff --git a/cplay.c b/cplay.c
new file mode 100644
index 0000000..10c5424
--- /dev/null
+++ b/cplay.c
@@ -0,0 +1,330 @@
+/*
+ * BSD LICENSE
+ *
+ * tinyplay command line player for compress audio offload in alsa
+ * Copyright (c) 2011-2012, Intel Corporation
+ * All rights reserved.
+ *
+ * Author: Vinod Koul <vinod.koul@linux.intel.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * Neither the name of Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * LGPL LICENSE
+ *
+ * tinyplay command line player for compress audio offload in alsa
+ * Copyright (c) 2011-2012, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU Lesser General Public License,
+ * version 2.1, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to
+ * the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdint.h>
+#include <linux/types.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <getopt.h>
+#include <sys/time.h>
+#define __force
+#define __bitwise
+#define __user
+#include "sound/compress_params.h"
+#include "tinycompress/tinycompress.h"
+#include "tinycompress/tinymp3.h"
+
+static int verbose;
+
+static void usage(void)
+{
+ fprintf(stderr, "usage: cplay [OPTIONS] filename\n"
+ "-c\tcard number\n"
+ "-d\tdevice node\n"
+ "-b\tbuffer size\n"
+ "-f\tfragments\n\n"
+ "-v\tverbose mode\n"
+ "-h\tPrints this help list\n\n"
+ "Example:\n"
+ "\tcplay -c 1 -d 2 test.mp3\n"
+ "\tcplay -f 5 test.mp3\n");
+
+ exit(EXIT_FAILURE);
+}
+
+void play_samples(char *name, unsigned int card, unsigned int device,
+ unsigned long buffer_size, unsigned int frag);
+
+struct mp3_header {
+ uint16_t sync;
+ uint8_t format1;
+ uint8_t format2;
+};
+
+int parse_mp3_header(struct mp3_header *header, unsigned int *num_channels,
+ unsigned int *sample_rate, unsigned int *bit_rate)
+{
+ int ver_idx, mp3_version, layer, bit_rate_idx, sample_rate_idx, channel_idx;
+
+ /* check sync bits */
+ if ((header->sync & MP3_SYNC) != MP3_SYNC) {
+ fprintf(stderr, "Error: Can't find sync word\n");
+ return -1;
+ }
+ ver_idx = (header->sync >> 11) & 0x03;
+ mp3_version = ver_idx == 0 ? MPEG25 : ((ver_idx & 0x1) ? MPEG1 : MPEG2);
+ layer = 4 - ((header->sync >> 9) & 0x03);
+ bit_rate_idx = ((header->format1 >> 4) & 0x0f);
+ sample_rate_idx = ((header->format1 >> 2) & 0x03);
+ channel_idx = ((header->format2 >> 6) & 0x03);
+
+ if (sample_rate_idx == 3 || layer == 4 || bit_rate_idx == 15) {
+ fprintf(stderr, "Error: Can't find valid header\n");
+ return -1;
+ }
+ *num_channels = (channel_idx == MONO ? 1 : 2);
+ *sample_rate = mp3_sample_rates[mp3_version][sample_rate_idx];
+ *bit_rate = (mp3_bit_rates[mp3_version][layer - 1][bit_rate_idx]) * 1000;
+ if (verbose)
+ printf("%s: exit\n", __func__);
+ return 0;
+}
+
+int check_codec_format_supported(unsigned int card, unsigned int device, struct snd_codec *codec)
+{
+ if (is_codec_supported(card, device, COMPRESS_IN, codec) == false) {
+ fprintf(stderr, "Error: This codec or format is not supported by DSP\n");
+ return -1;
+ }
+ return 0;
+}
+
+static int print_time(struct compress *compress)
+{
+ unsigned int avail;
+ struct timespec tstamp;
+
+ if (compress_get_hpointer(compress, &avail, &tstamp) != 0) {
+ fprintf(stderr, "Error querying timestamp\n");
+ fprintf(stderr, "ERR: %s\n", compress_get_error(compress));
+ return -1;
+ } else
+ fprintf(stderr, "DSP played %jd.%jd\n", (intmax_t)tstamp.tv_sec, (intmax_t)tstamp.tv_nsec*1000);
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ char *file;
+ unsigned long buffer_size = 0;
+ int c;
+ unsigned int card = 0, device = 0, frag = 0;
+
+
+ if (argc < 2)
+ usage();
+
+ verbose = 0;
+ while ((c = getopt(argc, argv, "hvb:f:c:d:")) != -1) {
+ switch (c) {
+ case 'h':
+ usage();
+ break;
+ case 'b':
+ buffer_size = strtol(optarg, NULL, 0);
+ break;
+ case 'f':
+ frag = strtol(optarg, NULL, 10);
+ break;
+ case 'c':
+ card = strtol(optarg, NULL, 10);
+ break;
+ case 'd':
+ device = strtol(optarg, NULL, 10);
+ break;
+ case 'v':
+ verbose = 1;
+ break;
+ default:
+ exit(EXIT_FAILURE);
+ }
+ }
+ if (optind >= argc)
+ usage();
+
+ file = argv[optind];
+
+ play_samples(file, card, device, buffer_size, frag);
+
+ fprintf(stderr, "Finish Playing.... Close Normally\n");
+ exit(EXIT_SUCCESS);
+}
+
+void play_samples(char *name, unsigned int card, unsigned int device,
+ unsigned long buffer_size, unsigned int frag)
+{
+ struct compr_config config;
+ struct snd_codec codec;
+ struct compress *compress;
+ struct mp3_header header;
+ FILE *file;
+ char *buffer;
+ int size, num_read, wrote;
+ unsigned int channels, rate, bits;
+
+ if (verbose)
+ printf("%s: entry\n", __func__);
+ file = fopen(name, "rb");
+ if (!file) {
+ fprintf(stderr, "Unable to open file '%s'\n", name);
+ exit(EXIT_FAILURE);
+ }
+
+ fread(&header, sizeof(header), 1, file);
+
+ if (parse_mp3_header(&header, &channels, &rate, &bits) == -1) {
+ fclose(file);
+ exit(EXIT_FAILURE);
+ }
+
+ codec.id = SND_AUDIOCODEC_MP3;
+ codec.ch_in = channels;
+ codec.ch_out = channels;
+ codec.sample_rate = compress_get_alsa_rate(rate);
+ if (!codec.sample_rate) {
+ fprintf(stderr, "invalid sample rate %d\n", rate);
+ fclose(file);
+ exit(EXIT_FAILURE);
+ }
+ codec.bit_rate = bits;
+ codec.rate_control = 0;
+ codec.profile = 0;
+ codec.level = 0;
+ codec.ch_mode = 0;
+ codec.format = 0;
+ if ((buffer_size != 0) && (frag != 0)) {
+ config.fragment_size = buffer_size/frag;
+ config.fragments = frag;
+ } else {
+ /* use driver defaults */
+ config.fragment_size = 0;
+ config.fragments = 0;
+ }
+ config.codec = &codec;
+
+ compress = compress_open(card, device, COMPRESS_IN, &config);
+ if (!compress || !is_compress_ready(compress)) {
+ fprintf(stderr, "Unable to open Compress device %d:%d\n",
+ card, device);
+ fprintf(stderr, "ERR: %s\n", compress_get_error(compress));
+ goto FILE_EXIT;
+ };
+ if (verbose)
+ printf("%s: Opened compress device\n", __func__);
+ size = config.fragment_size;
+ buffer = malloc(size * config.fragments);
+ if (!buffer) {
+ fprintf(stderr, "Unable to allocate %d bytes\n", size);
+ goto COMP_EXIT;
+ }
+
+ /* we will write frag fragment_size and then start */
+ num_read = fread(buffer, 1, size * config.fragments, file);
+ if (num_read > 0) {
+ if (verbose)
+ printf("%s: Doing first buffer write of %d\n", __func__, num_read);
+ wrote = compress_write(compress, buffer, num_read);
+ if (wrote < 0) {
+ fprintf(stderr, "Error %d playing sample\n", wrote);
+ fprintf(stderr, "ERR: %s\n", compress_get_error(compress));
+ goto BUF_EXIT;
+ }
+ if (wrote != num_read) {
+ /* TODO: Buufer pointer needs to be set here */
+ fprintf(stderr, "We wrote %d, DSP accepted %d\n", num_read, wrote);
+ }
+ }
+ printf("Playing file %s On Card %u device %u, with buffer of %lu bytes\n",
+ name, card, device, buffer_size);
+ printf("Format %u Channels %u, %u Hz, Bit Rate %d\n",
+ SND_AUDIOCODEC_MP3, channels, rate, bits);
+
+ compress_start(compress);
+ if (verbose)
+ printf("%s: You should hear audio NOW!!!\n", __func__);
+
+ do {
+ num_read = fread(buffer, 1, size, file);
+ if (num_read > 0) {
+ wrote = compress_write(compress, buffer, num_read);
+ if (wrote < 0) {
+ fprintf(stderr, "Error playing sample\n");
+ fprintf(stderr, "ERR: %s\n", compress_get_error(compress));
+ goto BUF_EXIT;
+ }
+ if (wrote != num_read) {
+ /* TODO: Buffer pointer needs to be set here */
+ fprintf(stderr, "We wrote %d, DSP accepted %d\n", num_read, wrote);
+ }
+ if (verbose) {
+ print_time(compress);
+ printf("%s: wrote %d\n", __func__, wrote);
+ }
+ }
+ } while (num_read > 0);
+
+ if (verbose)
+ printf("%s: exit success\n", __func__);
+ /* issue drain if it supports */
+ compress_drain(compress);
+ free(buffer);
+ fclose(file);
+ compress_close(compress);
+ return;
+BUF_EXIT:
+ free(buffer);
+COMP_EXIT:
+ compress_close(compress);
+FILE_EXIT:
+ fclose(file);
+ if (verbose)
+ printf("%s: exit failure\n", __func__);
+ exit(EXIT_FAILURE);
+}
+
diff --git a/include/tinycompress/tinycompress.h b/include/tinycompress/tinycompress.h
new file mode 100644
index 0000000..40de69a
--- /dev/null
+++ b/include/tinycompress/tinycompress.h
@@ -0,0 +1,293 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright (c) 2011-2012, Intel Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * Neither the name of Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * LGPL LICENSE
+ *
+ * tinycompress library for compress audio offload in alsa
+ * Copyright (c) 2011-2012, Intel Corporation.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU Lesser General Public License,
+ * version 2.1, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to
+ * the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+
+#ifndef __TINYCOMPRESS_H
+#define __TINYCOMPRESS_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+/*
+ * struct compr_config: config structure, needs to be filled by app
+ * If fragment_size or fragments are zero, this means "don't care"
+ * and tinycompress will choose values that the driver supports
+ *
+ * @fragment_size: size of fragment requested, in bytes
+ * @fragments: number of fragments
+ * @codec: codec type and parameters requested
+ */
+struct compr_config {
+ __u32 fragment_size;
+ __u32 fragments;
+ struct snd_codec *codec;
+};
+
+struct compr_gapless_mdata {
+ __u32 encoder_delay;
+ __u32 encoder_padding;
+};
+
+#define COMPRESS_OUT 0x20000000
+#define COMPRESS_IN 0x10000000
+
+struct compress;
+struct snd_compr_tstamp;
+
+/*
+ * compress_open: open a new compress stream
+ * returns the valid struct compress on success, NULL on failure
+ * If config does not specify a requested fragment size, on return
+ * it will be updated with the size and number of fragments that
+ * were configured
+ *
+ * @card: sound card number
+ * @device: device number
+ * @flags: device flags can be COMPRESS_OUT or COMPRESS_IN
+ * @config: stream config requested. Returns actual fragment config
+ */
+struct compress *compress_open(unsigned int card, unsigned int device,
+ unsigned int flags, struct compr_config *config);
+
+/*
+ * compress_close: close the compress stream
+ *
+ * @compress: compress stream to be closed
+ */
+void compress_close(struct compress *compress);
+
+/*
+ * compress_get_hpointer: get the hw timestamp
+ * return 0 on success, negative on error
+ *
+ * @compress: compress stream on which query is made
+ * @avail: buffer availble for write/read, in bytes
+ * @tstamp: hw time
+ */
+int compress_get_hpointer(struct compress *compress,
+ unsigned int *avail, struct timespec *tstamp);
+
+
+/*
+ * compress_get_tstamp: get the raw hw timestamp
+ * return 0 on success, negative on error
+ *
+ * @compress: compress stream on which query is made
+ * @samples: number of decoded samples played
+ * @sampling_rate: sampling rate of decoded samples
+ */
+int compress_get_tstamp(struct compress *compress,
+ unsigned long *samples, unsigned int *sampling_rate);
+
+/*
+ * compress_write: write data to the compress stream
+ * return bytes written on success, negative on error
+ * By default this is a blocking call and will not return
+ * until all bytes have been written or there was a
+ * write error.
+ * If non-blocking mode has been enabled with compress_nonblock(),
+ * this function will write all bytes that can be written without
+ * blocking and will then return the number of bytes successfully
+ * written. If the return value is not an error and is < size
+ * the caller can use compress_wait() to block until the driver
+ * is ready for more data.
+ *
+ * @compress: compress stream to be written to
+ * @buf: pointer to data
+ * @size: number of bytes to be written
+ */
+int compress_write(struct compress *compress, const void *buf, unsigned int size);
+
+/*
+ * compress_read: read data from the compress stream
+ * return bytes read on success, negative on error
+ * By default this is a blocking call and will block until
+ * size bytes have been written or there was a read error.
+ * If non-blocking mode was enabled using compress_nonblock()
+ * the behaviour will change to read only as many bytes as
+ * are currently available (if no bytes are available it
+ * will return immediately). The caller can then use
+ * compress_wait() to block until more bytes are available.
+ *
+ * @compress: compress stream from where data is to be read
+ * @buf: pointer to data buffer
+ * @size: size of given buffer
+ */
+int compress_read(struct compress *compress, void *buf, unsigned int size);
+
+/*
+ * compress_start: start the compress stream
+ * return 0 on success, negative on error
+ *
+ * @compress: compress stream to be started
+ */
+int compress_start(struct compress *compress);
+
+/*
+ * compress_stop: stop the compress stream
+ * return 0 on success, negative on error
+ *
+ * @compress: compress stream to be stopped
+ */
+int compress_stop(struct compress *compress);
+
+/*
+ * compress_pause: pause the compress stream
+ * return 0 on success, negative on error
+ *
+ * @compress: compress stream to be paused
+ */
+int compress_pause(struct compress *compress);
+
+/*
+ * compress_resume: resume the compress stream
+ * return 0 on success, negative on error
+ *
+ * @compress: compress stream to be resumed
+ */
+int compress_resume(struct compress *compress);
+
+/*
+ * compress_drain: drain the compress stream
+ * return 0 on success, negative on error
+ *
+ * @compress: compress stream to be drain
+ */
+int compress_drain(struct compress *compress);
+
+/*
+ * compress_next_track: set the next track for stream
+ *
+ * return 0 on success, negative on error
+ *
+ * @compress: compress stream to be transistioned to next track
+ */
+int compress_next_track(struct compress *compress);
+
+/*
+ * compress_partial_drain: drain will return after the last frame is decoded
+ * by DSP and will play the , All the data written into compressed
+ * ring buffer is decoded
+ *
+ * return 0 on success, negative on error
+ *
+ * @compress: compress stream to be drain
+ */
+int compress_partial_drain(struct compress *compress);
+
+/*
+ * compress_set_gapless_metadata: set gapless metadata of a compress strem
+ *
+ * return 0 on success, negative on error
+ *
+ * @compress: compress stream for which metadata has to set
+ * @mdata: metadata encoder delay and padding
+ */
+
+int compress_set_gapless_metadata(struct compress *compress,
+ struct compr_gapless_mdata *mdata);
+
+/*
+ * is_codec_supported:check if the given codec is supported
+ * returns true when supported, false if not
+ *
+ * @card: sound card number
+ * @device: device number
+ * @flags: stream flags
+ * @codec: codec type and parameters to be checked
+ */
+bool is_codec_supported(unsigned int card, unsigned int device,
+ unsigned int flags, struct snd_codec *codec);
+
+/*
+ * compress_set_max_poll_wait: set the maximum time tinycompress
+ * will wait for driver to signal a poll(). Interval is in
+ * milliseconds.
+ * Pass interval of -1 to disable timeout and make poll() wait
+ * until driver signals.
+ * If this function is not used the timeout defaults to 20 seconds.
+ */
+void compress_set_max_poll_wait(struct compress *compress, int milliseconds);
+
+/* Enable or disable non-blocking mode for write and read */
+void compress_nonblock(struct compress *compress, int nonblock);
+
+/* Wait for ring buffer to ready for next read or write */
+int compress_wait(struct compress *compress, int timeout_ms);
+
+int is_compress_running(struct compress *compress);
+
+int is_compress_ready(struct compress *compress);
+
+/* Returns a human readable reason for the last error */
+const char *compress_get_error(struct compress *compress);
+/*
+ * since the SNDRV_PCM_RATE_* is not availble anywhere in userspace
+ * and we have used these to define the sampling rate, we need to define
+ * then here
+ */
+#define SNDRV_PCM_RATE_5512 (1<<0) /* 5512Hz */
+#define SNDRV_PCM_RATE_8000 (1<<1) /* 8000Hz */
+#define SNDRV_PCM_RATE_11025 (1<<2) /* 11025Hz */
+#define SNDRV_PCM_RATE_16000 (1<<3) /* 16000Hz */
+#define SNDRV_PCM_RATE_22050 (1<<4) /* 22050Hz */
+#define SNDRV_PCM_RATE_32000 (1<<5) /* 32000Hz */
+#define SNDRV_PCM_RATE_44100 (1<<6) /* 44100Hz */
+#define SNDRV_PCM_RATE_48000 (1<<7) /* 48000Hz */
+#define SNDRV_PCM_RATE_64000 (1<<8) /* 64000Hz */
+#define SNDRV_PCM_RATE_88200 (1<<9) /* 88200Hz */
+#define SNDRV_PCM_RATE_96000 (1<<10) /* 96000Hz */
+#define SNDRV_PCM_RATE_176400 (1<<11) /* 176400Hz */
+#define SNDRV_PCM_RATE_192000 (1<<12) /* 192000Hz */
+
+/* utility functions */
+unsigned int compress_get_alsa_rate(unsigned int rate);
+#endif
diff --git a/include/tinycompress/tinymp3.h b/include/tinycompress/tinymp3.h
new file mode 100644
index 0000000..b7b45e3
--- /dev/null
+++ b/include/tinycompress/tinymp3.h
@@ -0,0 +1,106 @@
+/*
+ * BSD LICENSE
+ *
+ * mp3 header and prasing
+ * Copyright (c) 2011-2012, Intel Corporation
+ * All rights reserved.
+ *
+ * Author: Vinod Koul <vinod.koul@linux.intel.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * Neither the name of Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * LGPL LICENSE
+ *
+ * mp3 header and parsing
+ * Copyright (c) 2011-2012, Intel Corporation.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU Lesser General Public License,
+ * version 2.1, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to
+ * the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+
+#ifndef __TINYMP3_H
+#define __TINYMP3_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+#define MP3_SYNC 0xe0ff
+
+const int mp3_sample_rates[3][3] = {
+ {44100, 48000, 32000}, /* MPEG-1 */
+ {22050, 24000, 16000}, /* MPEG-2 */
+ {11025, 12000, 8000}, /* MPEG-2.5 */
+};
+
+const int mp3_bit_rates[3][3][15] = {
+ {
+ /* MPEG-1 */
+ { 0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448}, /* Layer 1 */
+ { 0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384}, /* Layer 2 */
+ { 0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320}, /* Layer 3 */
+ },
+ {
+ /* MPEG-2 */
+ { 0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256}, /* Layer 1 */
+ { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160}, /* Layer 2 */
+ { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160}, /* Layer 3 */
+ },
+ {
+ /* MPEG-2.5 */
+ { 0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256}, /* Layer 1 */
+ { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160}, /* Layer 2 */
+ { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160}, /* Layer 3 */
+ },
+};
+
+enum mpeg_version {
+ MPEG1 = 0,
+ MPEG2 = 1,
+ MPEG25 = 2
+};
+
+enum mp3_stereo_mode {
+ STEREO = 0x00,
+ JOINT = 0x01,
+ DUAL = 0x02,
+ MONO = 0x03
+};
+
+#endif
diff --git a/include/tinycompress/version.h b/include/tinycompress/version.h
new file mode 100644
index 0000000..000f6a2
--- /dev/null
+++ b/include/tinycompress/version.h
@@ -0,0 +1,70 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright (c) 2011-2012, Intel Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * Neither the name of Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * LGPL LICENSE
+ *
+ * tinycompress library for compress audio offload in alsa
+ * Copyright (c) 2011-2012, Intel Corporation.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU Lesser General Public License,
+ * version 2.1, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to
+ * the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+
+#ifndef __VERSION_H
+#define __VERSION_H
+
+
+#define TINYCOMPRESS_LIB_MAJOR 0 /* major number of library version */
+#define TINYCOMPRESS_LIB_MINOR 2 /* minor number of library version */
+#define TINYCOMPRESS_LIB_SUBMINOR 0 /* subminor number of library version */
+
+/** library version */
+#define TINYCOMPRESS_LIB_VERSION \
+ ((TINYCOMPRESS_LIB_MAJOR<<16)|\
+ (TINYCOMPRESS_LIB_MINOR<<8)|\
+ TINYCOMPRESS_LIB_SUBMINOR)
+
+/** library version (string) */
+#define TINYCOMPRESS_LIB_VERSION_STR "0.2.0"
+
+#endif
diff --git a/utils.c b/utils.c
new file mode 100644
index 0000000..a835bef
--- /dev/null
+++ b/utils.c
@@ -0,0 +1,96 @@
+/*
+ * BSD LICENSE
+ *
+ * tinycompress utility functions
+ * Copyright (c) 2011-2013, Intel Corporation
+ * All rights reserved.
+ *
+ * Author: Vinod Koul <vinod.koul@intel.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * Neither the name of Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * LGPL LICENSE
+ *
+ * tinycompress utility functions
+ * Copyright (c) 2011-2013, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU Lesser General Public License,
+ * version 2.1, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to
+ * the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <linux/types.h>
+#include <sys/time.h>
+#define __force
+#define __bitwise
+#define __user
+#include "tinycompress/tinycompress.h"
+
+
+unsigned int compress_get_alsa_rate(unsigned int rate)
+{
+ switch (rate) {
+ case 5512:
+ return SNDRV_PCM_RATE_5512;
+ case 8000:
+ return SNDRV_PCM_RATE_8000;
+ case 11025:
+ return SNDRV_PCM_RATE_11025;
+ case 16000:
+ return SNDRV_PCM_RATE_16000;
+ case 22050:
+ return SNDRV_PCM_RATE_22050;
+ case 32000:
+ return SNDRV_PCM_RATE_32000;
+ case 44100:
+ return SNDRV_PCM_RATE_44100;
+ case 48000:
+ return SNDRV_PCM_RATE_48000;
+ case 64000:
+ return SNDRV_PCM_RATE_64000;
+ case 88200:
+ return SNDRV_PCM_RATE_88200;
+ case 96000:
+ return SNDRV_PCM_RATE_96000;
+ case 176400:
+ return SNDRV_PCM_RATE_176400;
+ case 192000:
+ return SNDRV_PCM_RATE_192000;
+ default:
+ return 0;
+ }
+}
