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-rw-r--r--include/media/AudioSystem.h4
-rw-r--r--include/media/IAudioFlinger.h4
-rw-r--r--include/media/nbaio/NBLog.h6
-rw-r--r--include/media/stagefright/ClockEstimator.h110
-rw-r--r--include/media/stagefright/FileSource.h2
-rw-r--r--include/media/stagefright/MediaSource.h2
-rw-r--r--include/private/media/AudioTrackShared.h14
-rw-r--r--include/private/media/StaticAudioTrackState.h10
8 files changed, 140 insertions, 12 deletions
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index 225ef76..4c22412 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -127,8 +127,8 @@ public:
// NOTE: this feature is not supported on all hardware platforms and it is
// necessary to check returned status before using the returned values.
static status_t getRenderPosition(audio_io_handle_t output,
- size_t *halFrames,
- size_t *dspFrames,
+ uint32_t *halFrames,
+ uint32_t *dspFrames,
audio_stream_type_t stream = AUDIO_STREAM_DEFAULT);
// return the number of input frames lost by HAL implementation, or 0 if the handle is invalid
diff --git a/include/media/IAudioFlinger.h b/include/media/IAudioFlinger.h
index 899d79f..282f275 100644
--- a/include/media/IAudioFlinger.h
+++ b/include/media/IAudioFlinger.h
@@ -167,10 +167,10 @@ public:
virtual status_t setVoiceVolume(float volume) = 0;
- virtual status_t getRenderPosition(size_t *halFrames, size_t *dspFrames,
+ virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames,
audio_io_handle_t output) const = 0;
- virtual size_t getInputFramesLost(audio_io_handle_t ioHandle) const = 0;
+ virtual uint32_t getInputFramesLost(audio_io_handle_t ioHandle) const = 0;
virtual int newAudioSessionId() = 0;
diff --git a/include/media/nbaio/NBLog.h b/include/media/nbaio/NBLog.h
index 6d59ea7..bcbbc04 100644
--- a/include/media/nbaio/NBLog.h
+++ b/include/media/nbaio/NBLog.h
@@ -25,6 +25,8 @@
namespace android {
+class String8;
+
class NBLog {
public:
@@ -187,6 +189,10 @@ private:
const Shared* const mShared; // raw pointer to shared memory
const sp<IMemory> mIMemory; // ref-counted version
int32_t mFront; // index of oldest acknowledged Entry
+ int mFd; // file descriptor
+ int mIndent; // indentation level
+
+ void dumpLine(const String8& timestamp, String8& body);
static const size_t kSquashTimestamp = 5; // squash this many or more adjacent timestamps
};
diff --git a/include/media/stagefright/ClockEstimator.h b/include/media/stagefright/ClockEstimator.h
new file mode 100644
index 0000000..2fd6e75
--- /dev/null
+++ b/include/media/stagefright/ClockEstimator.h
@@ -0,0 +1,110 @@
+/*
+**
+** Copyright 2014, 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.
+*/
+
+#ifndef CLOCK_ESTIMATOR_H_
+
+#define CLOCK_ESTIMATOR_H_
+
+
+#include <utils/RefBase.h>
+#include <utils/Vector.h>
+
+namespace android {
+// ---------------------------------------------------------------------------
+
+struct ClockEstimator : RefBase {
+ virtual double estimate(double x, double y) = 0;
+ virtual void reset() = 0;
+};
+
+struct WindowedLinearFitEstimator : ClockEstimator {
+ struct LinearFit {
+ /**
+ * Fit y = a * x + b, where each input has a weight
+ */
+ double mX; // sum(w_i * x_i)
+ double mXX; // sum(w_i * x_i^2)
+ double mY; // sum(w_i * y_i)
+ double mYY; // sum(w_i * y_i^2)
+ double mXY; // sum(w_i * x_i * y_i)
+ double mW; // sum(w_i)
+
+ LinearFit();
+ void reset();
+ void combine(const LinearFit &lf);
+ void add(double x, double y, double w);
+ void scale(double w);
+ double interpolate(double x);
+ double size() const;
+
+ DISALLOW_EVIL_CONSTRUCTORS(LinearFit);
+ };
+
+ /**
+ * Estimator for f(x) = y' where input y' is noisy, but
+ * theoretically linear:
+ *
+ * y' =~ y = a * x + b
+ *
+ * It uses linear fit regression over a tapering rolling window
+ * to get an estimate for y (from the current and past inputs
+ * (x, y')).
+ *
+ * ____________
+ * /| |\
+ * / | | \
+ * / | | \ <--- new data (x, y')
+ * / | main | \
+ * <--><----------><-->
+ * tail head
+ *
+ * weight is 1 under the main window, tapers exponentially by
+ * the factors given in the head and the tail.
+ *
+ * Assuming that x and y' are monotonic, that x is somewhat
+ * evenly sampled, and that a =~ 1, the estimated y is also
+ * going to be monotonic.
+ */
+ WindowedLinearFitEstimator(
+ size_t headLength = 5, double headFactor = 0.5,
+ size_t mainLength = 0, double tailFactor = 0.99);
+
+ virtual void reset();
+
+ // add a new sample (x -> y') and return an estimated value for the true y
+ virtual double estimate(double x, double y);
+
+private:
+ Vector<double> mXHistory; // circular buffer
+ Vector<double> mYHistory; // circular buffer
+ LinearFit mHead;
+ LinearFit mMain;
+ LinearFit mTail;
+ double mHeadFactorInv;
+ double mTailFactor;
+ double mFirstWeight;
+ size_t mHistoryLength;
+ size_t mHeadLength;
+ size_t mNumSamples;
+ size_t mSampleIx;
+
+ DISALLOW_EVIL_CONSTRUCTORS(WindowedLinearFitEstimator);
+};
+
+}; // namespace android
+
+#endif
diff --git a/include/media/stagefright/FileSource.h b/include/media/stagefright/FileSource.h
index d994cb3..be152e7 100644
--- a/include/media/stagefright/FileSource.h
+++ b/include/media/stagefright/FileSource.h
@@ -55,7 +55,7 @@ private:
sp<DecryptHandle> mDecryptHandle;
DrmManagerClient *mDrmManagerClient;
int64_t mDrmBufOffset;
- int64_t mDrmBufSize;
+ size_t mDrmBufSize;
unsigned char *mDrmBuf;
ssize_t readAtDRM(off64_t offset, void *data, size_t size);
diff --git a/include/media/stagefright/MediaSource.h b/include/media/stagefright/MediaSource.h
index 3818e63..204d1c6 100644
--- a/include/media/stagefright/MediaSource.h
+++ b/include/media/stagefright/MediaSource.h
@@ -105,7 +105,7 @@ struct MediaSource : public virtual RefBase {
// This will be called after a successful start() and before the
// first read() call.
// Callee assumes ownership of the buffers if no error is returned.
- virtual status_t setBuffers(const Vector<MediaBuffer *> &buffers) {
+ virtual status_t setBuffers(const Vector<MediaBuffer *> & /* buffers */) {
return ERROR_UNSUPPORTED;
}
diff --git a/include/private/media/AudioTrackShared.h b/include/private/media/AudioTrackShared.h
index 7fd9379..2d033e6 100644
--- a/include/private/media/AudioTrackShared.h
+++ b/include/private/media/AudioTrackShared.h
@@ -65,7 +65,9 @@ typedef SingleStateQueue<StaticAudioTrackState> StaticAudioTrackSingleStateQueue
struct AudioTrackSharedStatic {
StaticAudioTrackSingleStateQueue::Shared
mSingleStateQueue;
- size_t mBufferPosition; // updated asynchronously by server,
+ // This field should be a size_t, but since it is located in shared memory we
+ // force to 32-bit. The client and server may have different typedefs for size_t.
+ uint32_t mBufferPosition; // updated asynchronously by server,
// "for entertainment purposes only"
};
@@ -108,7 +110,9 @@ struct audio_track_cblk_t
private:
- size_t mMinimum; // server wakes up client if available >= mMinimum
+ // This field should be a size_t, but since it is located in shared memory we
+ // force to 32-bit. The client and server may have different typedefs for size_t.
+ uint32_t mMinimum; // server wakes up client if available >= mMinimum
// Channel volumes are fixed point U4.12, so 0x1000 means 1.0.
// Left channel is in [0:15], right channel is in [16:31].
@@ -245,7 +249,11 @@ public:
}
void setMinimum(size_t minimum) {
- mCblk->mMinimum = minimum;
+ // This can only happen on a 64-bit client
+ if (minimum > UINT32_MAX) {
+ minimum = UINT32_MAX;
+ }
+ mCblk->mMinimum = (uint32_t) minimum;
}
// Return the number of frames that would need to be obtained and released
diff --git a/include/private/media/StaticAudioTrackState.h b/include/private/media/StaticAudioTrackState.h
index 46a5946..d483061 100644
--- a/include/private/media/StaticAudioTrackState.h
+++ b/include/private/media/StaticAudioTrackState.h
@@ -25,9 +25,13 @@ namespace android {
// state is wrapped by a SingleStateQueue.
struct StaticAudioTrackState {
// do not define constructors, destructors, or virtual methods
- size_t mLoopStart;
- size_t mLoopEnd;
- int mLoopCount;
+
+ // These fields should both be size_t, but since they are located in shared memory we
+ // force to 32-bit. The client and server may have different typedefs for size_t.
+ uint32_t mLoopStart;
+ uint32_t mLoopEnd;
+
+ int mLoopCount;
};
} // namespace android
generated by cgit v1.1 at 2024-06-10 20:37:37 +0000