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333
external/cache/sources/tinyalsa_hub/tinyplay_hub.c
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Executable file
333
external/cache/sources/tinyalsa_hub/tinyplay_hub.c
vendored
Executable file
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/* tinyplay.c
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**
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** Copyright 2011, The Android Open Source Project
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** * Neither the name of The Android Open Source Project nor the names of
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** its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND
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** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE
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** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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** DAMAGE.
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*/
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#include <tinyalsa/asoundlib.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <signal.h>
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#include <sys/time.h>
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#define ID_RIFF 0x46464952
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#define ID_WAVE 0x45564157
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#define ID_FMT 0x20746d66
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#define ID_DATA 0x61746164
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struct riff_wave_header {
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uint32_t riff_id;
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uint32_t riff_sz;
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uint32_t wave_id;
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};
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struct chunk_header {
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uint32_t id;
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uint32_t sz;
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};
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struct chunk_fmt {
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uint16_t audio_format;
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uint16_t num_channels;
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uint32_t sample_rate;
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uint32_t byte_rate;
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uint16_t block_align;
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uint16_t bits_per_sample;
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};
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static int close = 0;
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static unsigned int loop_num = 1;
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static unsigned int loop_minutes = 0;
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void play_sample(FILE *file, unsigned int card, unsigned int device, unsigned int channels,
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unsigned int rate, unsigned int bits, unsigned int period_size,
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unsigned int period_count);
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void stream_close(int sig)
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{
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/* allow the stream to be closed gracefully */
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signal(sig, SIG_IGN);
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close = 1;
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}
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int main(int argc, char **argv)
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{
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FILE *file;
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struct riff_wave_header riff_wave_header;
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struct chunk_header chunk_header;
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struct chunk_fmt chunk_fmt;
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unsigned int device = 0;
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unsigned int card = 0;
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unsigned int period_size = 1024;
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unsigned int period_count = 4;
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char *filename;
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int more_chunks = 1;
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if (argc < 2) {
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fprintf(stderr, "Usage: %s file.wav [-D card] [-d device] "
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"[-m loop_minutes] [-i loop_num] "
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"[-p period_size] [-n period_count] \n", argv[0]);
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return 1;
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}
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filename = argv[1];
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file = fopen(filename, "rb");
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if (!file) {
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fprintf(stderr, "Unable to open file '%s'\n", filename);
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return 1;
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}
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fread(&riff_wave_header, sizeof(riff_wave_header), 1, file);
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if ((riff_wave_header.riff_id != ID_RIFF) ||
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(riff_wave_header.wave_id != ID_WAVE)) {
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fprintf(stderr, "Error: '%s' is not a riff/wave file\n", filename);
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fclose(file);
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return 1;
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}
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do {
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fread(&chunk_header, sizeof(chunk_header), 1, file);
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switch (chunk_header.id) {
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case ID_FMT:
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fread(&chunk_fmt, sizeof(chunk_fmt), 1, file);
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/* If the format header is larger, skip the rest */
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if (chunk_header.sz > sizeof(chunk_fmt))
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fseek(file, chunk_header.sz - sizeof(chunk_fmt), SEEK_CUR);
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break;
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case ID_DATA:
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/* Stop looking for chunks */
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more_chunks = 0;
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break;
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default:
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/* Unknown chunk, skip bytes */
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fseek(file, chunk_header.sz, SEEK_CUR);
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}
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} while (more_chunks);
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/* parse command line arguments */
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argv += 2;
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while (*argv) {
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if (strcmp(*argv, "-d") == 0) {
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argv++;
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if (*argv)
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device = atoi(*argv);
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}
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if (strcmp(*argv, "-p") == 0) {
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argv++;
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if (*argv)
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period_size = atoi(*argv);
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}
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if (strcmp(*argv, "-n") == 0) {
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argv++;
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if (*argv)
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period_count = atoi(*argv);
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}
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if (strcmp(*argv, "-D") == 0) {
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argv++;
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if (*argv)
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card = atoi(*argv);
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}
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if (strcmp(*argv, "-m") == 0) {
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argv++;
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if (*argv)
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loop_minutes = atoi(*argv);
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}
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if (strcmp(*argv, "-i") == 0) {
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argv++;
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if (*argv)
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loop_num = atoi(*argv);
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}
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if (*argv)
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argv++;
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}
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play_sample(file, card, device, chunk_fmt.num_channels, chunk_fmt.sample_rate,
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chunk_fmt.bits_per_sample, period_size, period_count);
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fclose(file);
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return 0;
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}
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int check_param(struct pcm_params *params, unsigned int param, unsigned int value,
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char *param_name, char *param_unit)
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{
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unsigned int min;
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unsigned int max;
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int is_within_bounds = 1;
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min = pcm_params_get_min(params, param);
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if (value < min) {
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fprintf(stderr, "%s is %u%s, device only supports >= %u%s\n", param_name, value,
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param_unit, min, param_unit);
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is_within_bounds = 0;
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}
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max = pcm_params_get_max(params, param);
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if (value > max) {
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fprintf(stderr, "%s is %u%s, device only supports <= %u%s\n", param_name, value,
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param_unit, max, param_unit);
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is_within_bounds = 0;
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}
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return is_within_bounds;
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}
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int sample_is_playable(unsigned int card, unsigned int device, unsigned int channels,
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unsigned int rate, unsigned int bits, unsigned int period_size,
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unsigned int period_count)
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{
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struct pcm_params *params;
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int can_play;
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params = pcm_params_get(card, device, PCM_OUT);
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if (params == NULL) {
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fprintf(stderr, "Unable to open PCM device %u.\n", device);
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return 0;
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}
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can_play = check_param(params, PCM_PARAM_RATE, rate, "Sample rate", "Hz");
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can_play &= check_param(params, PCM_PARAM_CHANNELS, channels, "Sample", " channels");
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can_play &= check_param(params, PCM_PARAM_SAMPLE_BITS, bits, "Bitrate", " bits");
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can_play &= check_param(params, PCM_PARAM_PERIOD_SIZE, period_size, "Period size", "Hz");
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can_play &= check_param(params, PCM_PARAM_PERIODS, period_count, "Period count", "Hz");
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pcm_params_free(params);
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return can_play;
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}
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void play_sample(FILE *file, unsigned int card, unsigned int device, unsigned int channels,
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unsigned int rate, unsigned int bits, unsigned int period_size,
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unsigned int period_count)
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{
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struct pcm_config config;
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struct pcm *pcm;
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struct pcm *pcm1;
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char *buffer;
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int size;
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int num_read;
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struct timeval tv;
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struct timezone tz;
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long sec_start = 0;
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long sec_end = 0;
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int loop_count = 0;
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config.channels = channels;
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config.rate = rate;
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config.period_size = period_size;
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config.period_count = period_count;
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if (bits == 32)
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config.format = PCM_FORMAT_S32_LE;
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else if (bits == 16)
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config.format = PCM_FORMAT_S16_LE;
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else if (bits == 24)
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config.format = PCM_FORMAT_S24_LE;
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config.start_threshold = 0;
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config.stop_threshold = 0;
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config.silence_threshold = 0;
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if (!sample_is_playable(card, device, channels, rate, bits, period_size, period_count)) {
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return;
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}
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pcm = pcm_open(card, device, PCM_OUT, &config);
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if (!pcm || !pcm_is_ready(pcm)) {
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fprintf(stderr, "Unable to open PCM device %u (%s)\n",
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device, pcm_get_error(pcm));
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return;
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}
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if (device == 0)
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pcm1 = pcm_open(1, 0, PCM_OUT, &config);
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else if (device == 1)
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pcm1 = pcm_open(2, 0, PCM_OUT, &config);
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else if (device == 2)
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pcm1 = pcm_open(4, 0, PCM_OUT, &config);
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else
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printf("error: device is error");
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if (!pcm1 || !pcm_is_ready(pcm1)) {
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fprintf(stderr, "Unable to open PCM device %u (%s)\n",
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device, pcm_get_error(pcm1));
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return;
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}
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pcm_prepare(pcm);
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pcm_prepare(pcm1);
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size = pcm_frames_to_bytes(pcm, pcm_get_buffer_size(pcm));
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buffer = malloc(size);
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if (!buffer) {
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fprintf(stderr, "Unable to allocate %d bytes\n", size);
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free(buffer);
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pcm_close(pcm);
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pcm_close(pcm1);
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return;
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}
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printf("Playing sample: %u ch, %u hz, %u bit\n", channels, rate, bits);
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/* catch ctrl-c to shutdown cleanly */
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signal(SIGINT, stream_close);
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gettimeofday(&tv, &tz);
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sec_start = tv.tv_sec;
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printf("start --> loop_minutes = %d; loop_num = %d\n",
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loop_minutes, loop_num);
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do {
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num_read = fread(buffer, 1, size, file);
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if (num_read > 0) {
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if (pcm_write(pcm, buffer, num_read)) {
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fprintf(stderr, "Error playing sample\n");
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break;
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}
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if (feof(file)) {
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printf("--> loop_count = %d\n", ++loop_count);
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fseek(file, 0L, SEEK_SET);
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}
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if (loop_minutes == 0) {
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if (loop_count >= loop_num)
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break;
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} else {
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gettimeofday(&tv, &tz);
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sec_end = tv.tv_sec;
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if ((sec_end - sec_start) > (loop_minutes * 60)) {
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printf("End loop_minutes: %ld\n", (sec_end - sec_start)/60);
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break;
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}
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}
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}
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} while (!close && num_read > 0);
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free(buffer);
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pcm_close(pcm);
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pcm_close(pcm1);
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}
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