cd67b27666
Change-Id: I4c391a74f0f29a1b1a5392546f0b8c39f92c7898
748 lines
19 KiB
C
748 lines
19 KiB
C
/*
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* Copyright (C) 2012 Paul Kocialkowski <contact@paulk.fr>
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*
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* This is based on Galaxy Nexus audio.primary.tuna implementation:
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* Copyright 2011, The Android Open-Source Project
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define LOG_TAG "TinyALSA-Audio Output"
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#include <stdlib.h>
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#include <errno.h>
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#include <pthread.h>
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#include <stdint.h>
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#include <sys/time.h>
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#include <cutils/str_parms.h>
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#include <cutils/log.h>
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#ifdef YAMAHA_MC1N2_AUDIO
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#include <yamaha-mc1n2-audio.h>
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#endif
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#define EFFECT_UUID_NULL EFFECT_UUID_NULL_OUT
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#define EFFECT_UUID_NULL_STR EFFECT_UUID_NULL_STR_OUT
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#include <audio_utils/resampler.h>
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#include "audio_hw.h"
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#include "mixer.h"
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/*
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* Functions
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*/
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int audio_out_pcm_open(struct tinyalsa_audio_stream_out *stream_out)
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{
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struct pcm *pcm = NULL;
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struct pcm_config pcm_config;
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if(stream_out == NULL)
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return -1;
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memset(&pcm_config, 0, sizeof(pcm_config));
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pcm_config.channels = popcount(stream_out->mixer_props->channel_mask);
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pcm_config.rate = stream_out->mixer_props->rate;
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switch(stream_out->mixer_props->format) {
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case AUDIO_FORMAT_PCM_16_BIT:
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pcm_config.format = PCM_FORMAT_S16_LE;
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break;
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case AUDIO_FORMAT_PCM_32_BIT:
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pcm_config.format = PCM_FORMAT_S32_LE;
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break;
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default:
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ALOGE("Invalid format: 0x%x", stream_out->mixer_props->format);
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return -1;
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}
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pcm_config.period_size = stream_out->mixer_props->period_size;
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pcm_config.period_count = stream_out->mixer_props->period_count;
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pcm = pcm_open(stream_out->mixer_props->card,
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stream_out->mixer_props->device, PCM_OUT, &pcm_config);
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if(pcm == NULL || !pcm_is_ready(pcm)) {
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ALOGE("Unable to open pcm device: %s", pcm_get_error(pcm));
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return -1;
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}
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stream_out->pcm = pcm;
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if(stream_out->resampler != NULL)
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stream_out->resampler->reset(stream_out->resampler);
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return 0;
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}
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void audio_out_pcm_close(struct tinyalsa_audio_stream_out *stream_out)
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{
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if(stream_out->pcm == NULL)
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return;
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pcm_close(stream_out->pcm);
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stream_out->pcm = NULL;
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}
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int audio_out_set_route(struct tinyalsa_audio_stream_out *stream_out,
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audio_devices_t device)
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{
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int rc;
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if(stream_out == NULL)
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return -1;
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stream_out->device_current = device;
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if(device == 0) {
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pthread_mutex_unlock(&stream_out->lock);
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return stream_out->stream.common.standby((struct audio_stream *) stream_out);
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}
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tinyalsa_mixer_set_device(stream_out->device->mixer, stream_out->device_current);
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#ifdef YAMAHA_MC1N2_AUDIO
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yamaha_mc1n2_audio_set_route(stream_out->device->mc1n2_pdata, device);
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#endif
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return 0;
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}
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int audio_out_resampler_open(struct tinyalsa_audio_stream_out *stream_out)
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{
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int rc;
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if(stream_out == NULL)
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return -1;
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rc = create_resampler(stream_out->rate,
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stream_out->mixer_props->rate,
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popcount(stream_out->channel_mask),
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RESAMPLER_QUALITY_DEFAULT,
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NULL,
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&stream_out->resampler);
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if(rc < 0 || stream_out->resampler == NULL) {
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ALOGE("Failed to create resampler");
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return -1;
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}
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return 0;
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}
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void audio_out_resampler_close(struct tinyalsa_audio_stream_out *stream_out)
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{
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if(stream_out == NULL)
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return;
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if(stream_out->resampler != NULL) {
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release_resampler(stream_out->resampler);
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stream_out->resampler = NULL;
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}
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}
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int audio_out_write_process(struct tinyalsa_audio_stream_out *stream_out, void *buffer, int size)
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{
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size_t frames_out;
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size_t frames_in;
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int size_in;
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void *buffer_in = NULL;
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int frames_out_resampler;
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int size_out_resampler;
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void *buffer_out_resampler = NULL;
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int frames_out_channels;
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int size_out_channels;
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void *buffer_out_channels = NULL;
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int i, j;
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int rc;
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if(stream_out == NULL || buffer == NULL || size <= 0)
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return -1;
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frames_in = size / audio_stream_frame_size((struct audio_stream *) stream_out);
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size_in = size;
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buffer_in = buffer;
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if(stream_out->resampler != NULL) {
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frames_out_resampler = (frames_in * stream_out->mixer_props->rate) /
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stream_out->rate;
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frames_out_resampler = ((frames_out_resampler + 15) / 16) * 16;
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size_out_resampler = frames_out_resampler * audio_stream_frame_size((struct audio_stream *) stream_out);
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buffer_out_resampler = calloc(1, size_out_resampler);
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frames_out = frames_out_resampler;
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stream_out->resampler->resample_from_input(stream_out->resampler,
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buffer_in, &frames_in, buffer_out_resampler, &frames_out);
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frames_in = frames_out;
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size_in = frames_out * audio_stream_frame_size((struct audio_stream *) stream_out);
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buffer_in = buffer_out_resampler;
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}
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if(buffer_in == NULL)
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goto error;
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//FIXME: This is only for PCM 16
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if(popcount(stream_out->mixer_props->channel_mask) < popcount(stream_out->channel_mask)) {
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frames_out_channels = frames_in;
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size_out_channels = frames_out_channels * popcount(stream_out->mixer_props->channel_mask) * audio_bytes_per_sample(stream_out->mixer_props->format);
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buffer_out_channels = calloc(1, size_out_channels);
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int channels_count_in = popcount(stream_out->channel_mask);
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int channels_count_out = popcount(stream_out->mixer_props->channel_mask);
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int ratio = channels_count_in / channels_count_out;
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int16_t *byte_in = (int16_t *) buffer_in;
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int16_t *byte_out = (int16_t *) buffer_out_channels;
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int16_t byte;
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for(i=0 ; i < frames_out_channels * channels_count_out; i++) {
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byte = 0;
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for(j=0 ; j < ratio ; j++) {
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byte += *byte_in / ratio;
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byte_in++;
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}
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*byte_out = byte;
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byte_out++;
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}
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frames_in = frames_out_channels;
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size_in = size_out_channels;
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buffer_in = buffer_out_channels;
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} else if(popcount(stream_out->channel_mask) != popcount(stream_out->mixer_props->channel_mask)) {
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ALOGE("Asked for more channels than software can provide!");
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goto error;
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}
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if(buffer_in != NULL) {
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if(stream_out->pcm == NULL || !pcm_is_ready(stream_out->pcm)) {
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ALOGE("pcm device is not ready");
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goto error;
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}
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rc = pcm_write(stream_out->pcm, buffer_in, size_in);
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if(rc != 0) {
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ALOGE("pcm write failed!");
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goto error;
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}
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}
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if(buffer_out_resampler != NULL)
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free(buffer_out_resampler);
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if(buffer_out_channels != NULL)
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free(buffer_out_channels);
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return 0;
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error:
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if(buffer_out_resampler != NULL)
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free(buffer_out_resampler);
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if(buffer_out_channels != NULL)
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free(buffer_out_channels);
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return -1;
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}
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static uint32_t audio_out_get_sample_rate(const struct audio_stream *stream)
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{
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struct tinyalsa_audio_stream_out *stream_out;
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if(stream == NULL)
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return 0;
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stream_out = (struct tinyalsa_audio_stream_out *) stream;
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return stream_out->rate;
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}
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static int audio_out_set_sample_rate(struct audio_stream *stream, uint32_t rate)
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{
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struct tinyalsa_audio_stream_out *stream_out;
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ALOGD("%s(%p, %d)", __func__, stream, rate);
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if(stream == NULL)
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return -1;
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stream_out = (struct tinyalsa_audio_stream_out *) stream;
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if(stream_out->rate != (int) rate) {
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pthread_mutex_lock(&stream_out->lock);
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stream_out->rate = rate;
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if(stream_out->rate != stream_out->mixer_props->rate) {
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audio_out_resampler_close(stream_out);
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audio_out_resampler_open(stream_out);
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stream_out->standby = 1;
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}
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pthread_mutex_unlock(&stream_out->lock);
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}
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return 0;
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}
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static size_t audio_out_get_buffer_size(const struct audio_stream *stream)
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{
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struct tinyalsa_audio_stream_out *stream_out;
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size_t size;
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if(stream == NULL)
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return -1;
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stream_out = (struct tinyalsa_audio_stream_out *) stream;
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size = (stream_out->mixer_props->period_size * stream_out->rate) /
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stream_out->mixer_props->rate;
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size = ((size + 15) / 16) * 16;
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size = size * audio_stream_frame_size((struct audio_stream *) stream);
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return size;
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}
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static audio_channel_mask_t audio_out_get_channels(const struct audio_stream *stream)
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{
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struct tinyalsa_audio_stream_out *stream_out;
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if(stream == NULL)
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return -1;
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stream_out = (struct tinyalsa_audio_stream_out *) stream;
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return stream_out->channel_mask;
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}
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static audio_format_t audio_out_get_format(const struct audio_stream *stream)
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{
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struct tinyalsa_audio_stream_out *stream_out;
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if(stream == NULL)
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return -1;
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stream_out = (struct tinyalsa_audio_stream_out *) stream;
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return stream_out->format;
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}
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static int audio_out_set_format(struct audio_stream *stream, audio_format_t format)
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{
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struct tinyalsa_audio_stream_out *stream_out;
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//ALOGD("%s(%p, %d)", __func__, stream, format);
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if(stream == NULL)
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return -1;
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stream_out = (struct tinyalsa_audio_stream_out *) stream;
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if(stream_out->format != (audio_format_t) format) {
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pthread_mutex_lock(&stream_out->lock);
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stream_out->format = format;
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if(stream_out->format != stream_out->mixer_props->format)
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stream_out->standby = 1;
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pthread_mutex_unlock(&stream_out->lock);
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}
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return 0;
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}
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static int audio_out_standby(struct audio_stream *stream)
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{
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struct tinyalsa_audio_stream_out *stream_out;
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int rc;
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//ALOGD("%s(%p)", __func__, stream);
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if(stream == NULL)
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return -1;
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stream_out = (struct tinyalsa_audio_stream_out *) stream;
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pthread_mutex_lock(&stream_out->lock);
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if(stream_out->pcm != NULL)
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audio_out_pcm_close(stream_out);
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#ifdef YAMAHA_MC1N2_AUDIO
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if(!stream_out->standby) {
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rc = yamaha_mc1n2_audio_output_stop(stream_out->device->mc1n2_pdata);
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if(rc < 0) {
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ALOGE("Failed to set Yamaha-MC1N2-Audio route");
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}
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}
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#endif
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stream_out->standby = 1;
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pthread_mutex_unlock(&stream_out->lock);
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return 0;
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}
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static int audio_out_dump(const struct audio_stream *stream, int fd)
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{
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//ALOGD("%s(%p, %d)", __func__, stream, fd);
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return 0;
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}
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static int audio_out_set_parameters(struct audio_stream *stream, const char *kvpairs)
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{
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struct tinyalsa_audio_stream_out *stream_out;
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struct str_parms *parms;
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char value_string[32] = { 0 };
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int value;
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int rc;
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//ALOGD("%s(%p, %s)", __func__, stream, kvpairs);
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if(stream == NULL || kvpairs == NULL)
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return -1;
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stream_out = (struct tinyalsa_audio_stream_out *) stream;
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if(stream_out->device == NULL || stream_out->device->mixer == NULL)
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return -1;
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parms = str_parms_create_str(kvpairs);
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if(parms == NULL)
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return -1;
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rc = str_parms_get_str(parms, AUDIO_PARAMETER_STREAM_ROUTING, value_string, sizeof(value_string));
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if(rc < 0)
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goto error_params;
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value = atoi(value_string);
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pthread_mutex_lock(&stream_out->device->lock);
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if(stream_out->device_current != (audio_devices_t) value) {
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pthread_mutex_lock(&stream_out->lock);
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audio_out_set_route(stream_out, (audio_devices_t) value);
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pthread_mutex_unlock(&stream_out->lock);
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}
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if(stream_out->device->ril_interface != NULL && stream_out->device->ril_interface->device_current != (audio_devices_t) value) {
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audio_ril_interface_set_route(stream_out->device->ril_interface, (audio_devices_t) value);
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}
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pthread_mutex_unlock(&stream_out->device->lock);
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str_parms_destroy(parms);
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return 0;
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error_params:
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str_parms_destroy(parms);
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return -1;
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}
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static char *audio_out_get_parameters(const struct audio_stream *stream, const char *keys)
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{
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//ALOGD("%s(%p, %s)", __func__, stream, keys);
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return strdup("");
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}
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static uint32_t audio_out_get_latency(const struct audio_stream_out *stream)
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{
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struct tinyalsa_audio_stream_out *stream_out;
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uint32_t latency;
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//ALOGD("%s(%p)", __func__, stream);
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if(stream == NULL)
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return -1;
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stream_out = (struct tinyalsa_audio_stream_out *) stream;
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latency = (stream_out->mixer_props->period_size *
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stream_out->mixer_props->period_count * 1000) /
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stream_out->mixer_props->rate;
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return latency;
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}
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static int audio_out_set_volume(struct audio_stream_out *stream, float left,
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float right)
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{
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struct tinyalsa_audio_stream_out *stream_out;
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float volume;
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ALOGD("%s(%p, %f, %f)", __func__, stream, left, right);
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if(stream == NULL)
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return -1;
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stream_out = (struct tinyalsa_audio_stream_out *) stream;
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|
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if(stream_out->device == NULL || stream_out->device->mixer == NULL)
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return -1;
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volume = (left + right) / 2;
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pthread_mutex_lock(&stream_out->device->lock);
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tinyalsa_mixer_set_output_volume(stream_out->device->mixer,
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stream_out->device_current, volume);
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pthread_mutex_unlock(&stream_out->device->lock);
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return 0;
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}
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|
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static ssize_t audio_out_write(struct audio_stream_out *stream,
|
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const void *buffer, size_t bytes)
|
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{
|
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struct tinyalsa_audio_stream_out *stream_out;
|
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int rc;
|
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|
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if(stream == NULL || buffer == NULL || bytes <= 0)
|
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return -1;
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|
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stream_out = (struct tinyalsa_audio_stream_out *) stream;
|
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|
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if(stream_out->device == NULL)
|
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return -1;
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|
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pthread_mutex_lock(&stream_out->lock);
|
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|
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if(stream_out->standby) {
|
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#ifdef YAMAHA_MC1N2_AUDIO
|
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rc = yamaha_mc1n2_audio_output_start(stream_out->device->mc1n2_pdata);
|
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if(rc < 0) {
|
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ALOGE("Failed to set Yamaha-MC1N2-Audio route");
|
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}
|
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#endif
|
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|
|
rc = audio_out_pcm_open(stream_out);
|
|
if(rc < 0) {
|
|
ALOGE("Unable to open pcm device");
|
|
goto error;
|
|
}
|
|
|
|
stream_out->standby = 0;
|
|
}
|
|
|
|
rc = audio_out_write_process(stream_out, (void *) buffer, (int) bytes);
|
|
if(rc < 0) {
|
|
ALOGE("Process and write failed!");
|
|
goto error;
|
|
}
|
|
|
|
pthread_mutex_unlock(&stream_out->lock);
|
|
|
|
return bytes;
|
|
|
|
error:
|
|
pthread_mutex_unlock(&stream_out->lock);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int audio_out_get_render_position(const struct audio_stream_out *stream,
|
|
uint32_t *dsp_frames)
|
|
{
|
|
//ALOGD("%s(%p, %p)", __func__, stream, dsp_frames);
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int audio_out_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
|
|
{
|
|
//ALOGD("%s(%p, %p)", __func__, stream, effect);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int audio_out_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
|
|
{
|
|
//ALOGD("%s(%p, %p)", __func__, stream, effect);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Interface
|
|
*/
|
|
|
|
void audio_hw_close_output_stream(struct audio_hw_device *dev,
|
|
struct audio_stream_out *stream)
|
|
{
|
|
struct tinyalsa_audio_stream_out *stream_out;
|
|
struct tinyalsa_audio_device *tinyalsa_audio_device;
|
|
|
|
ALOGD("%s(%p)", __func__, stream);
|
|
|
|
stream_out = (struct tinyalsa_audio_stream_out *) stream;
|
|
|
|
if(stream_out != NULL && stream_out->resampler != NULL)
|
|
audio_out_resampler_close(stream_out);
|
|
|
|
#ifdef YAMAHA_MC1N2_AUDIO
|
|
if(stream_out != NULL && !stream_out->standby)
|
|
yamaha_mc1n2_audio_output_stop(stream_out->device->mc1n2_pdata);
|
|
#endif
|
|
|
|
if(stream != NULL)
|
|
free(stream);
|
|
|
|
if(dev == NULL)
|
|
return;
|
|
|
|
tinyalsa_audio_device = (struct tinyalsa_audio_device *) dev;
|
|
|
|
pthread_mutex_lock(&tinyalsa_audio_device->lock);
|
|
|
|
tinyalsa_mixer_set_output_state(tinyalsa_audio_device->mixer, 0);
|
|
tinyalsa_audio_device->stream_out = NULL;
|
|
|
|
pthread_mutex_unlock(&tinyalsa_audio_device->lock);
|
|
}
|
|
|
|
int audio_hw_open_output_stream(struct audio_hw_device *dev,
|
|
audio_io_handle_t handle,
|
|
audio_devices_t devices,
|
|
audio_output_flags_t flags,
|
|
struct audio_config *config,
|
|
struct audio_stream_out **stream_out)
|
|
{
|
|
struct tinyalsa_audio_device *tinyalsa_audio_device;
|
|
struct tinyalsa_audio_stream_out *tinyalsa_audio_stream_out;
|
|
struct audio_stream_out *stream;
|
|
int rc;
|
|
|
|
ALOGD("%s(%p, %d, %p, %p)",
|
|
__func__, dev, devices, config, stream_out);
|
|
|
|
if(dev == NULL || config == NULL || stream_out == NULL)
|
|
return -EINVAL;
|
|
|
|
//tuna added this for JB... but does it apply to us?
|
|
*stream_out = NULL;
|
|
|
|
tinyalsa_audio_device = (struct tinyalsa_audio_device *) dev;
|
|
tinyalsa_audio_stream_out = calloc(1, sizeof(struct tinyalsa_audio_stream_out));
|
|
|
|
if(tinyalsa_audio_stream_out == NULL)
|
|
return -ENOMEM;
|
|
|
|
tinyalsa_audio_stream_out->device = tinyalsa_audio_device;
|
|
tinyalsa_audio_device->stream_out = tinyalsa_audio_stream_out;
|
|
stream = &(tinyalsa_audio_stream_out->stream);
|
|
|
|
stream->common.get_sample_rate = audio_out_get_sample_rate;
|
|
stream->common.set_sample_rate = audio_out_set_sample_rate;
|
|
stream->common.get_buffer_size = audio_out_get_buffer_size;
|
|
stream->common.get_channels = audio_out_get_channels;
|
|
stream->common.get_format = audio_out_get_format;
|
|
stream->common.set_format = audio_out_set_format;
|
|
stream->common.standby = audio_out_standby;
|
|
stream->common.dump = audio_out_dump;
|
|
stream->common.set_parameters = audio_out_set_parameters;
|
|
stream->common.get_parameters = audio_out_get_parameters;
|
|
stream->common.add_audio_effect = audio_out_add_audio_effect;
|
|
stream->common.remove_audio_effect = audio_out_remove_audio_effect;
|
|
stream->get_latency = audio_out_get_latency;
|
|
stream->set_volume = audio_out_set_volume;
|
|
stream->write = audio_out_write;
|
|
stream->get_render_position = audio_out_get_render_position;
|
|
|
|
if(tinyalsa_audio_device->mixer == NULL)
|
|
goto error_stream;
|
|
|
|
tinyalsa_audio_stream_out->mixer_props =
|
|
tinyalsa_mixer_get_output_props(tinyalsa_audio_device->mixer);
|
|
|
|
if(tinyalsa_audio_stream_out->mixer_props == NULL)
|
|
goto error_stream;
|
|
|
|
// Default values
|
|
if(tinyalsa_audio_stream_out->mixer_props->rate == 0)
|
|
tinyalsa_audio_stream_out->mixer_props->rate = 44100;
|
|
if(tinyalsa_audio_stream_out->mixer_props->channel_mask == 0)
|
|
tinyalsa_audio_stream_out->mixer_props->channel_mask = AUDIO_CHANNEL_OUT_STEREO;
|
|
if(tinyalsa_audio_stream_out->mixer_props->format == 0)
|
|
tinyalsa_audio_stream_out->mixer_props->format = AUDIO_FORMAT_PCM_16_BIT;
|
|
|
|
//Default incoming data will always be 44100Hz, stereo, PCM 16
|
|
if(config->sample_rate == 0)
|
|
tinyalsa_audio_stream_out->rate = 44100;
|
|
else
|
|
tinyalsa_audio_stream_out->rate = config->sample_rate;
|
|
if(config->channel_mask == 0)
|
|
tinyalsa_audio_stream_out->channel_mask = AUDIO_CHANNEL_OUT_STEREO;
|
|
else
|
|
tinyalsa_audio_stream_out->channel_mask = config->channel_mask;
|
|
if(config->format == 0)
|
|
tinyalsa_audio_stream_out->format = AUDIO_FORMAT_PCM_16_BIT;
|
|
else
|
|
tinyalsa_audio_stream_out->format = config->format;
|
|
|
|
if(tinyalsa_audio_stream_out->rate != tinyalsa_audio_stream_out->mixer_props->rate) {
|
|
rc = audio_out_resampler_open(tinyalsa_audio_stream_out);
|
|
if(rc < 0) {
|
|
ALOGE("Unable to open resampler!");
|
|
goto error_stream;
|
|
}
|
|
}
|
|
|
|
config->sample_rate = (uint32_t) tinyalsa_audio_stream_out->rate;
|
|
config->channel_mask = (uint32_t) tinyalsa_audio_stream_out->channel_mask;
|
|
config->format = (uint32_t) tinyalsa_audio_stream_out->format;
|
|
|
|
pthread_mutex_lock(&tinyalsa_audio_device->lock);
|
|
|
|
rc = tinyalsa_mixer_set_output_state(tinyalsa_audio_device->mixer, 1);
|
|
if(rc < 0) {
|
|
ALOGE("Unable to set output state");
|
|
pthread_mutex_unlock(&tinyalsa_audio_device->lock);
|
|
goto error_stream;
|
|
}
|
|
|
|
pthread_mutex_lock(&tinyalsa_audio_stream_out->lock);
|
|
|
|
audio_out_set_route(tinyalsa_audio_stream_out, devices);
|
|
|
|
pthread_mutex_unlock(&tinyalsa_audio_device->lock);
|
|
|
|
rc = audio_out_pcm_open(tinyalsa_audio_stream_out);
|
|
if(rc < 0) {
|
|
ALOGE("Unable to open pcm device");
|
|
pthread_mutex_unlock(&tinyalsa_audio_stream_out->lock);
|
|
goto error_stream;
|
|
}
|
|
|
|
audio_out_pcm_close(tinyalsa_audio_stream_out);
|
|
|
|
tinyalsa_audio_stream_out->standby = 1;
|
|
|
|
pthread_mutex_unlock(&tinyalsa_audio_stream_out->lock);
|
|
|
|
*stream_out = stream;
|
|
|
|
return 0;
|
|
|
|
error_stream:
|
|
free(tinyalsa_audio_stream_out);
|
|
tinyalsa_audio_device->stream_out = NULL;
|
|
|
|
return -1;
|
|
}
|