Use audio_channel_mask_t more consistently
In IAudioFlinger::createTrack() and IAudioFlinger::openRecord(),
declare input parameter to use correct type audio_channel_mask_t.
In IAudioFlinger::getInputBufferSize(), input parameter is now channel mask
instead of channel count.
Remove unused IAudioFlinger::channelCount(audio_io_handle_t).
In AudioRecord::getMinFrameCount() and AudioSystem::getInputBufferSize(),
input parameter is channel mask instead of channel count.
Change-Id: Ib2f1c29bea70f016b3cfce83942ba292190ac965
diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp
index 0f17bbd..f8813c9 100644
--- a/media/libmedia/AudioRecord.cpp
+++ b/media/libmedia/AudioRecord.cpp
@@ -39,18 +39,18 @@
int* frameCount,
uint32_t sampleRate,
audio_format_t format,
- int channelCount)
+ audio_channel_mask_t channelMask)
{
size_t size = 0;
- if (AudioSystem::getInputBufferSize(sampleRate, format, channelCount, &size)
+ if (AudioSystem::getInputBufferSize(sampleRate, format, channelMask, &size)
!= NO_ERROR) {
ALOGE("AudioSystem could not query the input buffer size.");
return NO_INIT;
}
if (size == 0) {
- ALOGE("Unsupported configuration: sampleRate %d, format %d, channelCount %d",
- sampleRate, format, channelCount);
+ ALOGE("Unsupported configuration: sampleRate %d, format %d, channelMask %#x",
+ sampleRate, format, channelMask);
return BAD_VALUE;
}
@@ -58,6 +58,7 @@
size <<= 1;
if (audio_is_linear_pcm(format)) {
+ int channelCount = popcount(channelMask);
size /= channelCount * audio_bytes_per_sample(format);
}
diff --git a/media/libmedia/AudioSystem.cpp b/media/libmedia/AudioSystem.cpp
index 7c29c87..9c270c8 100644
--- a/media/libmedia/AudioSystem.cpp
+++ b/media/libmedia/AudioSystem.cpp
@@ -41,7 +41,7 @@
// Cached values for recording queries, all protected by gLock
uint32_t AudioSystem::gPrevInSamplingRate = 16000;
audio_format_t AudioSystem::gPrevInFormat = AUDIO_FORMAT_PCM_16_BIT;
-int AudioSystem::gPrevInChannelCount = 1;
+audio_channel_mask_t AudioSystem::gPrevInChannelMask = AUDIO_CHANNEL_IN_MONO;
size_t AudioSystem::gInBuffSize = 0;
@@ -334,25 +334,25 @@
return NO_ERROR;
}
-status_t AudioSystem::getInputBufferSize(uint32_t sampleRate, audio_format_t format, int channelCount,
- size_t* buffSize)
+status_t AudioSystem::getInputBufferSize(uint32_t sampleRate, audio_format_t format,
+ audio_channel_mask_t channelMask, size_t* buffSize)
{
gLock.lock();
// Do we have a stale gInBufferSize or are we requesting the input buffer size for new values
size_t inBuffSize = gInBuffSize;
if ((inBuffSize == 0) || (sampleRate != gPrevInSamplingRate) || (format != gPrevInFormat)
- || (channelCount != gPrevInChannelCount)) {
+ || (channelMask != gPrevInChannelMask)) {
gLock.unlock();
const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
if (af == 0) {
return PERMISSION_DENIED;
}
- inBuffSize = af->getInputBufferSize(sampleRate, format, channelCount);
+ inBuffSize = af->getInputBufferSize(sampleRate, format, channelMask);
gLock.lock();
// save the request params
gPrevInSamplingRate = sampleRate;
gPrevInFormat = format;
- gPrevInChannelCount = channelCount;
+ gPrevInChannelMask = channelMask;
gInBuffSize = inBuffSize;
}
diff --git a/media/libmedia/IAudioFlinger.cpp b/media/libmedia/IAudioFlinger.cpp
index e8dd438..27f6b45 100644
--- a/media/libmedia/IAudioFlinger.cpp
+++ b/media/libmedia/IAudioFlinger.cpp
@@ -32,7 +32,7 @@
CREATE_TRACK = IBinder::FIRST_CALL_TRANSACTION,
OPEN_RECORD,
SAMPLE_RATE,
- CHANNEL_COUNT,
+ CHANNEL_COUNT, // obsolete
FORMAT,
FRAME_COUNT,
LATENCY,
@@ -86,7 +86,7 @@
audio_stream_type_t streamType,
uint32_t sampleRate,
audio_format_t format,
- uint32_t channelMask,
+ audio_channel_mask_t channelMask,
int frameCount,
track_flags_t flags,
const sp<IMemory>& sharedBuffer,
@@ -182,6 +182,7 @@
return reply.readInt32();
}
+#if 0
virtual int channelCount(audio_io_handle_t output) const
{
Parcel data, reply;
@@ -190,6 +191,7 @@
remote()->transact(CHANNEL_COUNT, data, &reply);
return reply.readInt32();
}
+#endif
virtual audio_format_t format(audio_io_handle_t output) const
{
@@ -347,13 +349,14 @@
remote()->transact(REGISTER_CLIENT, data, &reply);
}
- virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format, int channelCount) const
+ virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
+ audio_channel_mask_t channelMask) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(sampleRate);
data.writeInt32(format);
- data.writeInt32(channelCount);
+ data.writeInt32(channelMask);
remote()->transact(GET_INPUTBUFFERSIZE, data, &reply);
return reply.readInt32();
}
@@ -698,7 +701,7 @@
int streamType = data.readInt32();
uint32_t sampleRate = data.readInt32();
audio_format_t format = (audio_format_t) data.readInt32();
- int channelCount = data.readInt32();
+ audio_channel_mask_t channelMask = data.readInt32();
size_t bufferCount = data.readInt32();
track_flags_t flags = (track_flags_t) data.readInt32();
sp<IMemory> buffer = interface_cast<IMemory>(data.readStrongBinder());
@@ -708,7 +711,7 @@
status_t status;
sp<IAudioTrack> track = createTrack(pid,
(audio_stream_type_t) streamType, sampleRate, format,
- channelCount, bufferCount, flags, buffer, output, tid, &sessionId, &status);
+ channelMask, bufferCount, flags, buffer, output, tid, &sessionId, &status);
reply->writeInt32(sessionId);
reply->writeInt32(status);
reply->writeStrongBinder(track->asBinder());
@@ -720,13 +723,13 @@
audio_io_handle_t input = (audio_io_handle_t) data.readInt32();
uint32_t sampleRate = data.readInt32();
audio_format_t format = (audio_format_t) data.readInt32();
- int channelCount = data.readInt32();
+ audio_channel_mask_t channelMask = data.readInt32();
size_t bufferCount = data.readInt32();
track_flags_t flags = (track_flags_t) data.readInt32();
int sessionId = data.readInt32();
status_t status;
sp<IAudioRecord> record = openRecord(pid, input,
- sampleRate, format, channelCount, bufferCount, flags, &sessionId, &status);
+ sampleRate, format, channelMask, bufferCount, flags, &sessionId, &status);
reply->writeInt32(sessionId);
reply->writeInt32(status);
reply->writeStrongBinder(record->asBinder());
@@ -737,11 +740,13 @@
reply->writeInt32( sampleRate((audio_io_handle_t) data.readInt32()) );
return NO_ERROR;
} break;
+#if 0
case CHANNEL_COUNT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32( channelCount((audio_io_handle_t) data.readInt32()) );
return NO_ERROR;
} break;
+#endif
case FORMAT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32( format((audio_io_handle_t) data.readInt32()) );
@@ -846,8 +851,8 @@
CHECK_INTERFACE(IAudioFlinger, data, reply);
uint32_t sampleRate = data.readInt32();
audio_format_t format = (audio_format_t) data.readInt32();
- int channelCount = data.readInt32();
- reply->writeInt32( getInputBufferSize(sampleRate, format, channelCount) );
+ audio_channel_mask_t channelMask = data.readInt32();
+ reply->writeInt32( getInputBufferSize(sampleRate, format, channelMask) );
return NO_ERROR;
} break;
case OPEN_OUTPUT: {