Initial version of tinycompress
From git://git.alsa-project.org/tinycompress.git 0765f97a
Change-Id: I34599092e8c764ecb3475883d1d46cd9c9b5c439
diff --git a/cplay.c b/cplay.c
new file mode 100644
index 0000000..b11d676
--- /dev/null
+++ b/cplay.c
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+/*
+ * 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;
+ switch (rate) {
+ case 5512:
+ codec.sample_rate = SNDRV_PCM_RATE_5512;
+ break;
+ case 8000:
+ codec.sample_rate = SNDRV_PCM_RATE_8000;
+ break;
+ case 11025:
+ codec.sample_rate = SNDRV_PCM_RATE_11025;
+ break;
+ case 16000:
+ codec.sample_rate = SNDRV_PCM_RATE_16000;
+ break;
+ case 220500:
+ codec.sample_rate = SNDRV_PCM_RATE_22050;
+ break;
+ case 32000:
+ codec.sample_rate = SNDRV_PCM_RATE_32000;
+ break;
+ case 44100:
+ codec.sample_rate = SNDRV_PCM_RATE_44100;
+ break;
+ case 48000:
+ codec.sample_rate = SNDRV_PCM_RATE_48000;
+ break;
+ case 64000:
+ codec.sample_rate = SNDRV_PCM_RATE_64000;
+ break;
+ case 88200:
+ codec.sample_rate = SNDRV_PCM_RATE_88200;
+ break;
+ case 96000:
+ codec.sample_rate = SNDRV_PCM_RATE_96000;
+ break;
+ case 176400:
+ codec.sample_rate = SNDRV_PCM_RATE_176400;
+ break;
+ case 192000:
+ codec.sample_rate = SNDRV_PCM_RATE_192000;
+ break;
+ default:
+ fprintf(stderr, "unknown sample rate %d\n", rate);
+ goto FILE_EXIT;
+ }
+ 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: Buufer 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 sucess\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);
+}
+