diff options
Diffstat (limited to 'services/audiopolicy/managerdefault/Ports.cpp')
| -rw-r--r-- | services/audiopolicy/managerdefault/Ports.cpp | 844 |
1 files changed, 844 insertions, 0 deletions
diff --git a/services/audiopolicy/managerdefault/Ports.cpp b/services/audiopolicy/managerdefault/Ports.cpp new file mode 100644 index 0000000..3e55cee --- /dev/null +++ b/services/audiopolicy/managerdefault/Ports.cpp @@ -0,0 +1,844 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define LOG_TAG "APM::Ports" +//#define LOG_NDEBUG 0 + +#include "AudioPolicyManager.h" + +#include "audio_policy_conf.h" + +namespace android { + +// --- AudioPort class implementation + +AudioPort::AudioPort(const String8& name, audio_port_type_t type, + audio_port_role_t role, const sp<HwModule>& module) : + mName(name), mType(type), mRole(role), mModule(module), mFlags(0), mId(0) +{ + mUseInChannelMask = ((type == AUDIO_PORT_TYPE_DEVICE) && (role == AUDIO_PORT_ROLE_SOURCE)) || + ((type == AUDIO_PORT_TYPE_MIX) && (role == AUDIO_PORT_ROLE_SINK)); +} + +void AudioPort::attach(const sp<HwModule>& module) { + mId = AudioPolicyManager::nextUniqueId(); + mModule = module; +} + +void AudioPort::toAudioPort(struct audio_port *port) const +{ + port->role = mRole; + port->type = mType; + strlcpy(port->name, mName, AUDIO_PORT_MAX_NAME_LEN); + unsigned int i; + for (i = 0; i < mSamplingRates.size() && i < AUDIO_PORT_MAX_SAMPLING_RATES; i++) { + if (mSamplingRates[i] != 0) { + port->sample_rates[i] = mSamplingRates[i]; + } + } + port->num_sample_rates = i; + for (i = 0; i < mChannelMasks.size() && i < AUDIO_PORT_MAX_CHANNEL_MASKS; i++) { + if (mChannelMasks[i] != 0) { + port->channel_masks[i] = mChannelMasks[i]; + } + } + port->num_channel_masks = i; + for (i = 0; i < mFormats.size() && i < AUDIO_PORT_MAX_FORMATS; i++) { + if (mFormats[i] != 0) { + port->formats[i] = mFormats[i]; + } + } + port->num_formats = i; + + ALOGV("AudioPort::toAudioPort() num gains %zu", mGains.size()); + + for (i = 0; i < mGains.size() && i < AUDIO_PORT_MAX_GAINS; i++) { + port->gains[i] = mGains[i]->mGain; + } + port->num_gains = i; +} + +void AudioPort::importAudioPort(const sp<AudioPort> port) { + for (size_t k = 0 ; k < port->mSamplingRates.size() ; k++) { + const uint32_t rate = port->mSamplingRates.itemAt(k); + if (rate != 0) { // skip "dynamic" rates + bool hasRate = false; + for (size_t l = 0 ; l < mSamplingRates.size() ; l++) { + if (rate == mSamplingRates.itemAt(l)) { + hasRate = true; + break; + } + } + if (!hasRate) { // never import a sampling rate twice + mSamplingRates.add(rate); + } + } + } + for (size_t k = 0 ; k < port->mChannelMasks.size() ; k++) { + const audio_channel_mask_t mask = port->mChannelMasks.itemAt(k); + if (mask != 0) { // skip "dynamic" masks + bool hasMask = false; + for (size_t l = 0 ; l < mChannelMasks.size() ; l++) { + if (mask == mChannelMasks.itemAt(l)) { + hasMask = true; + break; + } + } + if (!hasMask) { // never import a channel mask twice + mChannelMasks.add(mask); + } + } + } + for (size_t k = 0 ; k < port->mFormats.size() ; k++) { + const audio_format_t format = port->mFormats.itemAt(k); + if (format != 0) { // skip "dynamic" formats + bool hasFormat = false; + for (size_t l = 0 ; l < mFormats.size() ; l++) { + if (format == mFormats.itemAt(l)) { + hasFormat = true; + break; + } + } + if (!hasFormat) { // never import a channel mask twice + mFormats.add(format); + } + } + } + for (size_t k = 0 ; k < port->mGains.size() ; k++) { + sp<AudioGain> gain = port->mGains.itemAt(k); + if (gain != 0) { + bool hasGain = false; + for (size_t l = 0 ; l < mGains.size() ; l++) { + if (gain == mGains.itemAt(l)) { + hasGain = true; + break; + } + } + if (!hasGain) { // never import a gain twice + mGains.add(gain); + } + } + } +} + +void AudioPort::clearCapabilities() { + mChannelMasks.clear(); + mFormats.clear(); + mSamplingRates.clear(); + mGains.clear(); +} + +void AudioPort::loadSamplingRates(char *name) +{ + char *str = strtok(name, "|"); + + // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling + // rates should be read from the output stream after it is opened for the first time + if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { + mSamplingRates.add(0); + return; + } + + while (str != NULL) { + uint32_t rate = atoi(str); + if (rate != 0) { + ALOGV("loadSamplingRates() adding rate %d", rate); + mSamplingRates.add(rate); + } + str = strtok(NULL, "|"); + } +} + +void AudioPort::loadFormats(char *name) +{ + char *str = strtok(name, "|"); + + // by convention, "0' in the first entry in mFormats indicates the supported formats + // should be read from the output stream after it is opened for the first time + if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { + mFormats.add(AUDIO_FORMAT_DEFAULT); + return; + } + + while (str != NULL) { + audio_format_t format = (audio_format_t)ConfigParsingUtils::stringToEnum(sFormatNameToEnumTable, + ARRAY_SIZE(sFormatNameToEnumTable), + str); + if (format != AUDIO_FORMAT_DEFAULT) { + mFormats.add(format); + } + str = strtok(NULL, "|"); + } +} + +void AudioPort::loadInChannels(char *name) +{ + const char *str = strtok(name, "|"); + + ALOGV("loadInChannels() %s", name); + + if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { + mChannelMasks.add(0); + return; + } + + while (str != NULL) { + audio_channel_mask_t channelMask = + (audio_channel_mask_t)ConfigParsingUtils::stringToEnum(sInChannelsNameToEnumTable, + ARRAY_SIZE(sInChannelsNameToEnumTable), + str); + if (channelMask != 0) { + ALOGV("loadInChannels() adding channelMask %04x", channelMask); + mChannelMasks.add(channelMask); + } + str = strtok(NULL, "|"); + } +} + +void AudioPort::loadOutChannels(char *name) +{ + const char *str = strtok(name, "|"); + + ALOGV("loadOutChannels() %s", name); + + // by convention, "0' in the first entry in mChannelMasks indicates the supported channel + // masks should be read from the output stream after it is opened for the first time + if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) { + mChannelMasks.add(0); + return; + } + + while (str != NULL) { + audio_channel_mask_t channelMask = + (audio_channel_mask_t)ConfigParsingUtils::stringToEnum(sOutChannelsNameToEnumTable, + ARRAY_SIZE(sOutChannelsNameToEnumTable), + str); + if (channelMask != 0) { + mChannelMasks.add(channelMask); + } + str = strtok(NULL, "|"); + } + return; +} + +audio_gain_mode_t AudioPort::loadGainMode(char *name) +{ + const char *str = strtok(name, "|"); + + ALOGV("loadGainMode() %s", name); + audio_gain_mode_t mode = 0; + while (str != NULL) { + mode |= (audio_gain_mode_t)ConfigParsingUtils::stringToEnum(sGainModeNameToEnumTable, + ARRAY_SIZE(sGainModeNameToEnumTable), + str); + str = strtok(NULL, "|"); + } + return mode; +} + +void AudioPort::loadGain(cnode *root, int index) +{ + cnode *node = root->first_child; + + sp<AudioGain> gain = new AudioGain(index, mUseInChannelMask); + + while (node) { + if (strcmp(node->name, GAIN_MODE) == 0) { + gain->mGain.mode = loadGainMode((char *)node->value); + } else if (strcmp(node->name, GAIN_CHANNELS) == 0) { + if (mUseInChannelMask) { + gain->mGain.channel_mask = + (audio_channel_mask_t)ConfigParsingUtils::stringToEnum(sInChannelsNameToEnumTable, + ARRAY_SIZE(sInChannelsNameToEnumTable), + (char *)node->value); + } else { + gain->mGain.channel_mask = + (audio_channel_mask_t)ConfigParsingUtils::stringToEnum(sOutChannelsNameToEnumTable, + ARRAY_SIZE(sOutChannelsNameToEnumTable), + (char *)node->value); + } + } else if (strcmp(node->name, GAIN_MIN_VALUE) == 0) { + gain->mGain.min_value = atoi((char *)node->value); + } else if (strcmp(node->name, GAIN_MAX_VALUE) == 0) { + gain->mGain.max_value = atoi((char *)node->value); + } else if (strcmp(node->name, GAIN_DEFAULT_VALUE) == 0) { + gain->mGain.default_value = atoi((char *)node->value); + } else if (strcmp(node->name, GAIN_STEP_VALUE) == 0) { + gain->mGain.step_value = atoi((char *)node->value); + } else if (strcmp(node->name, GAIN_MIN_RAMP_MS) == 0) { + gain->mGain.min_ramp_ms = atoi((char *)node->value); + } else if (strcmp(node->name, GAIN_MAX_RAMP_MS) == 0) { + gain->mGain.max_ramp_ms = atoi((char *)node->value); + } + node = node->next; + } + + ALOGV("loadGain() adding new gain mode %08x channel mask %08x min mB %d max mB %d", + gain->mGain.mode, gain->mGain.channel_mask, gain->mGain.min_value, gain->mGain.max_value); + + if (gain->mGain.mode == 0) { + return; + } + mGains.add(gain); +} + +void AudioPort::loadGains(cnode *root) +{ + cnode *node = root->first_child; + int index = 0; + while (node) { + ALOGV("loadGains() loading gain %s", node->name); + loadGain(node, index++); + node = node->next; + } +} + +status_t AudioPort::checkExactSamplingRate(uint32_t samplingRate) const +{ + if (mSamplingRates.isEmpty()) { + return NO_ERROR; + } + + for (size_t i = 0; i < mSamplingRates.size(); i ++) { + if (mSamplingRates[i] == samplingRate) { + return NO_ERROR; + } + } + return BAD_VALUE; +} + +status_t AudioPort::checkCompatibleSamplingRate(uint32_t samplingRate, + uint32_t *updatedSamplingRate) const +{ + if (mSamplingRates.isEmpty()) { + return NO_ERROR; + } + + // Search for the closest supported sampling rate that is above (preferred) + // or below (acceptable) the desired sampling rate, within a permitted ratio. + // The sampling rates do not need to be sorted in ascending order. + ssize_t maxBelow = -1; + ssize_t minAbove = -1; + uint32_t candidate; + for (size_t i = 0; i < mSamplingRates.size(); i++) { + candidate = mSamplingRates[i]; + if (candidate == samplingRate) { + if (updatedSamplingRate != NULL) { + *updatedSamplingRate = candidate; + } + return NO_ERROR; + } + // candidate < desired + if (candidate < samplingRate) { + if (maxBelow < 0 || candidate > mSamplingRates[maxBelow]) { + maxBelow = i; + } + // candidate > desired + } else { + if (minAbove < 0 || candidate < mSamplingRates[minAbove]) { + minAbove = i; + } + } + } + // This uses hard-coded knowledge about AudioFlinger resampling ratios. + // TODO Move these assumptions out. + static const uint32_t kMaxDownSampleRatio = 6; // beyond this aliasing occurs + static const uint32_t kMaxUpSampleRatio = 256; // beyond this sample rate inaccuracies occur + // due to approximation by an int32_t of the + // phase increments + // Prefer to down-sample from a higher sampling rate, as we get the desired frequency spectrum. + if (minAbove >= 0) { + candidate = mSamplingRates[minAbove]; + if (candidate / kMaxDownSampleRatio <= samplingRate) { + if (updatedSamplingRate != NULL) { + *updatedSamplingRate = candidate; + } + return NO_ERROR; + } + } + // But if we have to up-sample from a lower sampling rate, that's OK. + if (maxBelow >= 0) { + candidate = mSamplingRates[maxBelow]; + if (candidate * kMaxUpSampleRatio >= samplingRate) { + if (updatedSamplingRate != NULL) { + *updatedSamplingRate = candidate; + } + return NO_ERROR; + } + } + // leave updatedSamplingRate unmodified + return BAD_VALUE; +} + +status_t AudioPort::checkExactChannelMask(audio_channel_mask_t channelMask) const +{ + if (mChannelMasks.isEmpty()) { + return NO_ERROR; + } + + for (size_t i = 0; i < mChannelMasks.size(); i++) { + if (mChannelMasks[i] == channelMask) { + return NO_ERROR; + } + } + return BAD_VALUE; +} + +status_t AudioPort::checkCompatibleChannelMask(audio_channel_mask_t channelMask) + const +{ + if (mChannelMasks.isEmpty()) { + return NO_ERROR; + } + + const bool isRecordThread = mType == AUDIO_PORT_TYPE_MIX && mRole == AUDIO_PORT_ROLE_SINK; + for (size_t i = 0; i < mChannelMasks.size(); i ++) { + // FIXME Does not handle multi-channel automatic conversions yet + audio_channel_mask_t supported = mChannelMasks[i]; + if (supported == channelMask) { + return NO_ERROR; + } + if (isRecordThread) { + // This uses hard-coded knowledge that AudioFlinger can silently down-mix and up-mix. + // FIXME Abstract this out to a table. + if (((supported == AUDIO_CHANNEL_IN_FRONT_BACK || supported == AUDIO_CHANNEL_IN_STEREO) + && channelMask == AUDIO_CHANNEL_IN_MONO) || + (supported == AUDIO_CHANNEL_IN_MONO && (channelMask == AUDIO_CHANNEL_IN_FRONT_BACK + || channelMask == AUDIO_CHANNEL_IN_STEREO))) { + return NO_ERROR; + } + } + } + return BAD_VALUE; +} + +status_t AudioPort::checkFormat(audio_format_t format) const +{ + if (mFormats.isEmpty()) { + return NO_ERROR; + } + + for (size_t i = 0; i < mFormats.size(); i ++) { + if (mFormats[i] == format) { + return NO_ERROR; + } + } + return BAD_VALUE; +} + + +uint32_t AudioPort::pickSamplingRate() const +{ + // special case for uninitialized dynamic profile + if (mSamplingRates.size() == 1 && mSamplingRates[0] == 0) { + return 0; + } + + // For direct outputs, pick minimum sampling rate: this helps ensuring that the + // channel count / sampling rate combination chosen will be supported by the connected + // sink + if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && + (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { + uint32_t samplingRate = UINT_MAX; + for (size_t i = 0; i < mSamplingRates.size(); i ++) { + if ((mSamplingRates[i] < samplingRate) && (mSamplingRates[i] > 0)) { + samplingRate = mSamplingRates[i]; + } + } + return (samplingRate == UINT_MAX) ? 0 : samplingRate; + } + + uint32_t samplingRate = 0; + uint32_t maxRate = MAX_MIXER_SAMPLING_RATE; + + // For mixed output and inputs, use max mixer sampling rates. Do not + // limit sampling rate otherwise + if (mType != AUDIO_PORT_TYPE_MIX) { + maxRate = UINT_MAX; + } + for (size_t i = 0; i < mSamplingRates.size(); i ++) { + if ((mSamplingRates[i] > samplingRate) && (mSamplingRates[i] <= maxRate)) { + samplingRate = mSamplingRates[i]; + } + } + return samplingRate; +} + +audio_channel_mask_t AudioPort::pickChannelMask() const +{ + // special case for uninitialized dynamic profile + if (mChannelMasks.size() == 1 && mChannelMasks[0] == 0) { + return AUDIO_CHANNEL_NONE; + } + audio_channel_mask_t channelMask = AUDIO_CHANNEL_NONE; + + // For direct outputs, pick minimum channel count: this helps ensuring that the + // channel count / sampling rate combination chosen will be supported by the connected + // sink + if ((mType == AUDIO_PORT_TYPE_MIX) && (mRole == AUDIO_PORT_ROLE_SOURCE) && + (mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD))) { + uint32_t channelCount = UINT_MAX; + for (size_t i = 0; i < mChannelMasks.size(); i ++) { + uint32_t cnlCount; + if (mUseInChannelMask) { + cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); + } else { + cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); + } + if ((cnlCount < channelCount) && (cnlCount > 0)) { + channelMask = mChannelMasks[i]; + channelCount = cnlCount; + } + } + return channelMask; + } + + uint32_t channelCount = 0; + uint32_t maxCount = MAX_MIXER_CHANNEL_COUNT; + + // For mixed output and inputs, use max mixer channel count. Do not + // limit channel count otherwise + if (mType != AUDIO_PORT_TYPE_MIX) { + maxCount = UINT_MAX; + } + for (size_t i = 0; i < mChannelMasks.size(); i ++) { + uint32_t cnlCount; + if (mUseInChannelMask) { + cnlCount = audio_channel_count_from_in_mask(mChannelMasks[i]); + } else { + cnlCount = audio_channel_count_from_out_mask(mChannelMasks[i]); + } + if ((cnlCount > channelCount) && (cnlCount <= maxCount)) { + channelMask = mChannelMasks[i]; + channelCount = cnlCount; + } + } + return channelMask; +} + +/* format in order of increasing preference */ +const audio_format_t AudioPort::sPcmFormatCompareTable[] = { + AUDIO_FORMAT_DEFAULT, + AUDIO_FORMAT_PCM_16_BIT, + AUDIO_FORMAT_PCM_8_24_BIT, + AUDIO_FORMAT_PCM_24_BIT_PACKED, + AUDIO_FORMAT_PCM_32_BIT, + AUDIO_FORMAT_PCM_FLOAT, +}; + +int AudioPort::compareFormats(audio_format_t format1, + audio_format_t format2) +{ + // NOTE: AUDIO_FORMAT_INVALID is also considered not PCM and will be compared equal to any + // compressed format and better than any PCM format. This is by design of pickFormat() + if (!audio_is_linear_pcm(format1)) { + if (!audio_is_linear_pcm(format2)) { + return 0; + } + return 1; + } + if (!audio_is_linear_pcm(format2)) { + return -1; + } + + int index1 = -1, index2 = -1; + for (size_t i = 0; + (i < ARRAY_SIZE(sPcmFormatCompareTable)) && ((index1 == -1) || (index2 == -1)); + i ++) { + if (sPcmFormatCompareTable[i] == format1) { + index1 = i; + } + if (sPcmFormatCompareTable[i] == format2) { + index2 = i; + } + } + // format1 not found => index1 < 0 => format2 > format1 + // format2 not found => index2 < 0 => format2 < format1 + return index1 - index2; +} + +audio_format_t AudioPort::pickFormat() const +{ + // special case for uninitialized dynamic profile + if (mFormats.size() == 1 && mFormats[0] == 0) { + return AUDIO_FORMAT_DEFAULT; + } + + audio_format_t format = AUDIO_FORMAT_DEFAULT; + audio_format_t bestFormat = + AudioPort::sPcmFormatCompareTable[ + ARRAY_SIZE(AudioPort::sPcmFormatCompareTable) - 1]; + // For mixed output and inputs, use best mixer output format. Do not + // limit format otherwise + if ((mType != AUDIO_PORT_TYPE_MIX) || + ((mRole == AUDIO_PORT_ROLE_SOURCE) && + (((mFlags & (AUDIO_OUTPUT_FLAG_DIRECT | AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) != 0)))) { + bestFormat = AUDIO_FORMAT_INVALID; + } + + for (size_t i = 0; i < mFormats.size(); i ++) { + if ((compareFormats(mFormats[i], format) > 0) && + (compareFormats(mFormats[i], bestFormat) <= 0)) { + format = mFormats[i]; + } + } + return format; +} + +status_t AudioPort::checkGain(const struct audio_gain_config *gainConfig, + int index) const +{ + if (index < 0 || (size_t)index >= mGains.size()) { + return BAD_VALUE; + } + return mGains[index]->checkConfig(gainConfig); +} + +void AudioPort::dump(int fd, int spaces) const +{ + const size_t SIZE = 256; + char buffer[SIZE]; + String8 result; + + if (mName.size() != 0) { + snprintf(buffer, SIZE, "%*s- name: %s\n", spaces, "", mName.string()); + result.append(buffer); + } + + if (mSamplingRates.size() != 0) { + snprintf(buffer, SIZE, "%*s- sampling rates: ", spaces, ""); + result.append(buffer); + for (size_t i = 0; i < mSamplingRates.size(); i++) { + if (i == 0 && mSamplingRates[i] == 0) { + snprintf(buffer, SIZE, "Dynamic"); + } else { + snprintf(buffer, SIZE, "%d", mSamplingRates[i]); + } + result.append(buffer); + result.append(i == (mSamplingRates.size() - 1) ? "" : ", "); + } + result.append("\n"); + } + + if (mChannelMasks.size() != 0) { + snprintf(buffer, SIZE, "%*s- channel masks: ", spaces, ""); + result.append(buffer); + for (size_t i = 0; i < mChannelMasks.size(); i++) { + ALOGV("AudioPort::dump mChannelMasks %zu %08x", i, mChannelMasks[i]); + + if (i == 0 && mChannelMasks[i] == 0) { + snprintf(buffer, SIZE, "Dynamic"); + } else { + snprintf(buffer, SIZE, "0x%04x", mChannelMasks[i]); + } + result.append(buffer); + result.append(i == (mChannelMasks.size() - 1) ? "" : ", "); + } + result.append("\n"); + } + + if (mFormats.size() != 0) { + snprintf(buffer, SIZE, "%*s- formats: ", spaces, ""); + result.append(buffer); + for (size_t i = 0; i < mFormats.size(); i++) { + const char *formatStr = ConfigParsingUtils::enumToString(sFormatNameToEnumTable, + ARRAY_SIZE(sFormatNameToEnumTable), + mFormats[i]); + if (i == 0 && strcmp(formatStr, "") == 0) { + snprintf(buffer, SIZE, "Dynamic"); + } else { + snprintf(buffer, SIZE, "%s", formatStr); + } + result.append(buffer); + result.append(i == (mFormats.size() - 1) ? "" : ", "); + } + result.append("\n"); + } + write(fd, result.string(), result.size()); + if (mGains.size() != 0) { + snprintf(buffer, SIZE, "%*s- gains:\n", spaces, ""); + write(fd, buffer, strlen(buffer) + 1); + result.append(buffer); + for (size_t i = 0; i < mGains.size(); i++) { + mGains[i]->dump(fd, spaces + 2, i); + } + } +} + + +// --- AudioPortConfig class implementation + +AudioPortConfig::AudioPortConfig() +{ + mSamplingRate = 0; + mChannelMask = AUDIO_CHANNEL_NONE; + mFormat = AUDIO_FORMAT_INVALID; + mGain.index = -1; +} + +status_t AudioPortConfig::applyAudioPortConfig( + const struct audio_port_config *config, + struct audio_port_config *backupConfig) +{ + struct audio_port_config localBackupConfig; + status_t status = NO_ERROR; + + localBackupConfig.config_mask = config->config_mask; + toAudioPortConfig(&localBackupConfig); + + sp<AudioPort> audioport = getAudioPort(); + if (audioport == 0) { + status = NO_INIT; + goto exit; + } + if (config->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { + status = audioport->checkExactSamplingRate(config->sample_rate); + if (status != NO_ERROR) { + goto exit; + } + mSamplingRate = config->sample_rate; + } + if (config->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { + status = audioport->checkExactChannelMask(config->channel_mask); + if (status != NO_ERROR) { + goto exit; + } + mChannelMask = config->channel_mask; + } + if (config->config_mask & AUDIO_PORT_CONFIG_FORMAT) { + status = audioport->checkFormat(config->format); + if (status != NO_ERROR) { + goto exit; + } + mFormat = config->format; + } + if (config->config_mask & AUDIO_PORT_CONFIG_GAIN) { + status = audioport->checkGain(&config->gain, config->gain.index); + if (status != NO_ERROR) { + goto exit; + } + mGain = config->gain; + } + +exit: + if (status != NO_ERROR) { + applyAudioPortConfig(&localBackupConfig); + } + if (backupConfig != NULL) { + *backupConfig = localBackupConfig; + } + return status; +} + +void AudioPortConfig::toAudioPortConfig(struct audio_port_config *dstConfig, + const struct audio_port_config *srcConfig) const +{ + if (dstConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE) { + dstConfig->sample_rate = mSamplingRate; + if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_SAMPLE_RATE)) { + dstConfig->sample_rate = srcConfig->sample_rate; + } + } else { + dstConfig->sample_rate = 0; + } + if (dstConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK) { + dstConfig->channel_mask = mChannelMask; + if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_CHANNEL_MASK)) { + dstConfig->channel_mask = srcConfig->channel_mask; + } + } else { + dstConfig->channel_mask = AUDIO_CHANNEL_NONE; + } + if (dstConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT) { + dstConfig->format = mFormat; + if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_FORMAT)) { + dstConfig->format = srcConfig->format; + } + } else { + dstConfig->format = AUDIO_FORMAT_INVALID; + } + if (dstConfig->config_mask & AUDIO_PORT_CONFIG_GAIN) { + dstConfig->gain = mGain; + if ((srcConfig != NULL) && (srcConfig->config_mask & AUDIO_PORT_CONFIG_GAIN)) { + dstConfig->gain = srcConfig->gain; + } + } else { + dstConfig->gain.index = -1; + } + if (dstConfig->gain.index != -1) { + dstConfig->config_mask |= AUDIO_PORT_CONFIG_GAIN; + } else { + dstConfig->config_mask &= ~AUDIO_PORT_CONFIG_GAIN; + } +} + + +// --- AudioPatch class implementation + +AudioPatch::AudioPatch(audio_patch_handle_t handle, + const struct audio_patch *patch, uid_t uid) : + mHandle(handle), mPatch(*patch), mUid(uid), mAfPatchHandle(0) +{} + +status_t AudioPatch::dump(int fd, int spaces, int index) const +{ + const size_t SIZE = 256; + char buffer[SIZE]; + String8 result; + + snprintf(buffer, SIZE, "%*sAudio patch %d:\n", spaces, "", index+1); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- handle: %2d\n", spaces, "", mHandle); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- audio flinger handle: %2d\n", spaces, "", mAfPatchHandle); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- owner uid: %2d\n", spaces, "", mUid); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- %d sources:\n", spaces, "", mPatch.num_sources); + result.append(buffer); + for (size_t i = 0; i < mPatch.num_sources; i++) { + if (mPatch.sources[i].type == AUDIO_PORT_TYPE_DEVICE) { + snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", + mPatch.sources[i].id, ConfigParsingUtils::enumToString(sDeviceNameToEnumTable, + ARRAY_SIZE(sDeviceNameToEnumTable), + mPatch.sources[i].ext.device.type)); + } else { + snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", + mPatch.sources[i].id, mPatch.sources[i].ext.mix.handle); + } + result.append(buffer); + } + snprintf(buffer, SIZE, "%*s- %d sinks:\n", spaces, "", mPatch.num_sinks); + result.append(buffer); + for (size_t i = 0; i < mPatch.num_sinks; i++) { + if (mPatch.sinks[i].type == AUDIO_PORT_TYPE_DEVICE) { + snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "", + mPatch.sinks[i].id, ConfigParsingUtils::enumToString(sDeviceNameToEnumTable, + ARRAY_SIZE(sDeviceNameToEnumTable), + mPatch.sinks[i].ext.device.type)); + } else { + snprintf(buffer, SIZE, "%*s- Mix ID %d I/O handle %d\n", spaces + 2, "", + mPatch.sinks[i].id, mPatch.sinks[i].ext.mix.handle); + } + result.append(buffer); + } + + write(fd, result.string(), result.size()); + return NO_ERROR; +} + + +}; // namespace android |