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-rw-r--r--core/java/android/hardware/Camera.java5
-rw-r--r--core/jni/android/graphics/SurfaceTexture.cpp9
-rw-r--r--graphics/java/android/graphics/SurfaceTexture.java16
-rw-r--r--include/gui/ISurfaceTexture.h7
-rw-r--r--include/gui/SurfaceTexture.h23
-rw-r--r--include/gui/SurfaceTextureClient.h7
-rw-r--r--include/surfaceflinger/Surface.h4
-rw-r--r--include/ui/egl/android_natives.h32
-rw-r--r--libs/gui/ISurfaceTexture.cpp7
-rw-r--r--libs/gui/SurfaceTexture.cpp24
-rw-r--r--libs/gui/SurfaceTextureClient.cpp29
-rw-r--r--libs/surfaceflinger_client/Surface.cpp15
-rw-r--r--media/java/android/media/MediaPlayer.java5
13 files changed, 163 insertions, 20 deletions
diff --git a/core/java/android/hardware/Camera.java b/core/java/android/hardware/Camera.java
index 97f0e1b..ed2b205 100644
--- a/core/java/android/hardware/Camera.java
+++ b/core/java/android/hardware/Camera.java
@@ -410,8 +410,9 @@ public class Camera {
/**
* Starts capturing and drawing preview frames to the screen.
- * Preview will not actually start until a surface is supplied with
- * {@link #setPreviewDisplay(SurfaceHolder)}.
+ * Preview will not actually start until a surface is supplied
+ * with {@link #setPreviewDisplay(SurfaceHolder)} or
+ * {@link #setPreviewTexture(SurfaceTexture)}.
*
* <p>If {@link #setPreviewCallback(Camera.PreviewCallback)},
* {@link #setOneShotPreviewCallback(Camera.PreviewCallback)}, or
diff --git a/core/jni/android/graphics/SurfaceTexture.cpp b/core/jni/android/graphics/SurfaceTexture.cpp
index c4e5878..2f70190 100644
--- a/core/jni/android/graphics/SurfaceTexture.cpp
+++ b/core/jni/android/graphics/SurfaceTexture.cpp
@@ -171,6 +171,12 @@ static void SurfaceTexture_getTransformMatrix(JNIEnv* env, jobject thiz,
env->ReleaseFloatArrayElements(jmtx, mtx, 0);
}
+static jlong SurfaceTexture_getTimestamp(JNIEnv* env, jobject thiz)
+{
+ sp<SurfaceTexture> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, thiz));
+ return surfaceTexture->getTimestamp();
+}
+
// ----------------------------------------------------------------------------
const char* const kSurfaceTextureClassPathName = "android/graphics/SurfaceTexture";
@@ -178,9 +184,10 @@ const char* const kSurfaceTextureClassPathName = "android/graphics/SurfaceTextur
static JNINativeMethod gSurfaceTextureMethods[] = {
{"nativeClassInit", "()V", (void*)SurfaceTexture_classInit },
{"nativeInit", "(ILjava/lang/Object;)V", (void*)SurfaceTexture_init },
- {"nativeFinalize", "()V", (void*)SurfaceTexture_finalize },
+ {"nativeFinalize", "()V", (void*)SurfaceTexture_finalize },
{"nativeUpdateTexImage", "()V", (void*)SurfaceTexture_updateTexImage },
{"nativeGetTransformMatrix", "([F)V", (void*)SurfaceTexture_getTransformMatrix },
+ {"nativeGetTimestamp", "()J", (void*)SurfaceTexture_getTimestamp }
};
int register_android_graphics_SurfaceTexture(JNIEnv* env)
diff --git a/graphics/java/android/graphics/SurfaceTexture.java b/graphics/java/android/graphics/SurfaceTexture.java
index 970b207..b8327a8 100644
--- a/graphics/java/android/graphics/SurfaceTexture.java
+++ b/graphics/java/android/graphics/SurfaceTexture.java
@@ -144,6 +144,21 @@ public class SurfaceTexture {
nativeGetTransformMatrix(mtx);
}
+ /**
+ * Retrieve the timestamp associated with the texture image set by the most recent call to
+ * updateTexImage.
+ *
+ * This timestamp is in nanoseconds, and is guaranteed to be monotonically increasing. The
+ * specific meaning and zero point of the timestamp depends on the source providing images to
+ * the SurfaceTexture. Unless otherwise specified by the image source, timestamps cannot
+ * generally be compared across SurfaceTexture instances, or across multiple program
+ * invocations. It is mostly useful for determining time offsets between subsequent frames.
+ * @hide
+ */
+ public long getTimestamp() {
+ return nativeGetTimestamp();
+ }
+
protected void finalize() throws Throwable {
try {
nativeFinalize();
@@ -182,6 +197,7 @@ public class SurfaceTexture {
private native void nativeInit(int texName, Object weakSelf);
private native void nativeFinalize();
private native void nativeGetTransformMatrix(float[] mtx);
+ private native long nativeGetTimestamp();
private native void nativeUpdateTexImage();
/*
diff --git a/include/gui/ISurfaceTexture.h b/include/gui/ISurfaceTexture.h
index 168310c..6ed3c6f 100644
--- a/include/gui/ISurfaceTexture.h
+++ b/include/gui/ISurfaceTexture.h
@@ -62,8 +62,11 @@ public:
// contents of the buffer associated with slot and transfers ownership of
// that slot back to the server. It is not valid to call queueBuffer on a
// slot that is not owned by the client or one for which a buffer associated
- // via requestBuffer.
- virtual status_t queueBuffer(int slot) = 0;
+ // via requestBuffer. In addition, a timestamp must be provided by the
+ // client for this buffer. The timestamp is measured in nanoseconds, and
+ // must be monotonically increasing. Its other properties (zero point, etc)
+ // are client-dependent, and should be documented by the client.
+ virtual status_t queueBuffer(int slot, int64_t timestamp) = 0;
// cancelBuffer indicates that the client does not wish to fill in the
// buffer associated with slot and transfers ownership of the slot back to
diff --git a/include/gui/SurfaceTexture.h b/include/gui/SurfaceTexture.h
index 9bf38f7..afa64d3 100644
--- a/include/gui/SurfaceTexture.h
+++ b/include/gui/SurfaceTexture.h
@@ -66,7 +66,12 @@ public:
// unmodified.
virtual status_t dequeueBuffer(int *buf);
- virtual status_t queueBuffer(int buf);
+ // queueBuffer returns a filled buffer to the SurfaceTexture. In addition, a
+ // timestamp must be provided for the buffer. The timestamp is in
+ // nanoseconds, and must be monotonically increasing. Its other semantics
+ // (zero point, etc) are client-dependent and should be documented by the
+ // client.
+ virtual status_t queueBuffer(int buf, int64_t timestamp);
virtual void cancelBuffer(int buf);
virtual status_t setCrop(const Rect& reg);
virtual status_t setTransform(uint32_t transform);
@@ -98,6 +103,14 @@ public:
// functions.
void getTransformMatrix(float mtx[16]);
+ // getTimestamp retrieves the timestamp associated with the texture image
+ // set by the most recent call to updateTexImage.
+ //
+ // The timestamp is in nanoseconds, and is monotonically increasing. Its
+ // other semantics (zero point, etc) are source-dependent and should be
+ // documented by the source.
+ int64_t getTimestamp();
+
// setFrameAvailableListener sets the listener object that will be notified
// when a new frame becomes available.
void setFrameAvailableListener(const sp<FrameAvailableListener>& l);
@@ -172,6 +185,10 @@ private:
// gets set to mLastQueuedTransform each time updateTexImage is called.
uint32_t mCurrentTransform;
+ // mCurrentTimestamp is the timestamp for the current texture. It
+ // gets set to mLastQueuedTimestamp each time updateTexImage is called.
+ int64_t mCurrentTimestamp;
+
// mLastQueued is the buffer slot index of the most recently enqueued buffer.
// At construction time it is initialized to INVALID_BUFFER_SLOT, and is
// updated each time queueBuffer is called.
@@ -187,6 +204,10 @@ private:
// queueBuffer gets called.
uint32_t mLastQueuedTransform;
+ // mLastQueuedTimestamp is the timestamp for the buffer that was most
+ // recently queued. This gets set by queueBuffer.
+ int64_t mLastQueuedTimestamp;
+
// mNextCrop is the crop rectangle that will be used for the next buffer
// that gets queued. It is set by calling setCrop.
Rect mNextCrop;
diff --git a/include/gui/SurfaceTextureClient.h b/include/gui/SurfaceTextureClient.h
index 7992105..df82bf2 100644
--- a/include/gui/SurfaceTextureClient.h
+++ b/include/gui/SurfaceTextureClient.h
@@ -63,6 +63,7 @@ private:
int dispatchSetBufferCount(va_list args);
int dispatchSetBuffersGeometry(va_list args);
int dispatchSetBuffersTransform(va_list args);
+ int dispatchSetBuffersTimestamp(va_list args);
int dispatchSetCrop(va_list args);
int dispatchSetUsage(va_list args);
@@ -71,6 +72,7 @@ private:
int setBufferCount(int bufferCount);
int setBuffersGeometry(int w, int h, int format);
int setBuffersTransform(int transform);
+ int setBuffersTimestamp(int64_t timestamp);
int setCrop(Rect const* rect);
int setUsage(uint32_t reqUsage);
@@ -114,6 +116,11 @@ private:
// at the next deuque operation. It is initialized to 0.
uint32_t mReqUsage;
+ // mTimestamp is the timestamp that will be used for the next buffer queue
+ // operation. It defaults to NATIVE_WINDOW_TIMESTAMP_AUTO, which means that
+ // a timestamp is auto-generated when queueBuffer is called.
+ int64_t mTimestamp;
+
// mMutex is the mutex used to prevent concurrent access to the member
// variables of SurfaceTexture objects. It must be locked whenever the
// member variables are accessed.
diff --git a/include/surfaceflinger/Surface.h b/include/surfaceflinger/Surface.h
index 9e0b5bb..a59d9e5 100644
--- a/include/surfaceflinger/Surface.h
+++ b/include/surfaceflinger/Surface.h
@@ -226,7 +226,8 @@ private:
int dispatch_set_buffer_count(va_list args);
int dispatch_set_buffers_geometry(va_list args);
int dispatch_set_buffers_transform(va_list args);
-
+ int dispatch_set_buffers_timestamp(va_list args);
+
void setUsage(uint32_t reqUsage);
int connect(int api);
int disconnect(int api);
@@ -234,6 +235,7 @@ private:
int setBufferCount(int bufferCount);
int setBuffersGeometry(int w, int h, int format);
int setBuffersTransform(int transform);
+ int setBuffersTimestamp(int64_t timestamp);
/*
* private stuff...
diff --git a/include/ui/egl/android_natives.h b/include/ui/egl/android_natives.h
index 0fc1ddf..0a6e4fb 100644
--- a/include/ui/egl/android_natives.h
+++ b/include/ui/egl/android_natives.h
@@ -57,7 +57,7 @@ typedef struct android_native_base_t
{
/* a magic value defined by the actual EGL native type */
int magic;
-
+
/* the sizeof() of the actual EGL native type */
int version;
@@ -129,6 +129,7 @@ enum {
NATIVE_WINDOW_SET_BUFFER_COUNT,
NATIVE_WINDOW_SET_BUFFERS_GEOMETRY,
NATIVE_WINDOW_SET_BUFFERS_TRANSFORM,
+ NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP,
};
/* parameter for NATIVE_WINDOW_[DIS]CONNECT */
@@ -157,7 +158,15 @@ enum {
NATIVE_WINDOW_SURFACE_TEXTURE_CLIENT, // SurfaceTextureClient
};
-struct ANativeWindow
+/* parameter for NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP
+ *
+ * Special timestamp value to indicate that timestamps should be auto-generated
+ * by the native window when queueBuffer is called. This is equal to INT64_MIN,
+ * defined directly to avoid problems with C99/C++ inclusion of stdint.h.
+ */
+const int64_t NATIVE_WINDOW_TIMESTAMP_AUTO = (-9223372036854775807LL-1);
+
+struct ANativeWindow
{
#ifdef __cplusplus
ANativeWindow()
@@ -262,7 +271,8 @@ struct ANativeWindow
* NATIVE_WINDOW_SET_BUFFER_COUNT
* NATIVE_WINDOW_SET_BUFFERS_GEOMETRY
* NATIVE_WINDOW_SET_BUFFERS_TRANSFORM
- *
+ * NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP
+ *
*/
int (*perform)(struct ANativeWindow* window,
@@ -389,6 +399,22 @@ static inline int native_window_set_buffers_transform(
transform);
}
+/*
+ * native_window_set_buffers_timestamp(..., int64_t timestamp)
+ * All buffers queued after this call will be associated with the timestamp
+ * parameter specified. If the timestamp is set to NATIVE_WINDOW_TIMESTAMP_AUTO
+ * (the default), timestamps will be generated automatically when queueBuffer is
+ * called. The timestamp is measured in nanoseconds, and must be monotonically
+ * increasing.
+ */
+static inline int native_window_set_buffers_timestamp(
+ ANativeWindow* window,
+ int64_t timestamp)
+{
+ return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP,
+ timestamp);
+}
+
// ---------------------------------------------------------------------------
/* FIXME: this is legacy for pixmaps */
diff --git a/libs/gui/ISurfaceTexture.cpp b/libs/gui/ISurfaceTexture.cpp
index d661fd5..bc14ad5 100644
--- a/libs/gui/ISurfaceTexture.cpp
+++ b/libs/gui/ISurfaceTexture.cpp
@@ -88,10 +88,11 @@ public:
return result;
}
- virtual status_t queueBuffer(int buf) {
+ virtual status_t queueBuffer(int buf, int64_t timestamp) {
Parcel data, reply;
data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
data.writeInt32(buf);
+ data.writeInt64(timestamp);
remote()->transact(QUEUE_BUFFER, data, &reply);
status_t result = reply.readInt32();
return result;
@@ -174,7 +175,8 @@ status_t BnSurfaceTexture::onTransact(
case QUEUE_BUFFER: {
CHECK_INTERFACE(ISurfaceTexture, data, reply);
int buf = data.readInt32();
- status_t result = queueBuffer(buf);
+ int64_t timestamp = data.readInt64();
+ status_t result = queueBuffer(buf, timestamp);
reply->writeInt32(result);
return NO_ERROR;
} break;
@@ -196,7 +198,6 @@ status_t BnSurfaceTexture::onTransact(
return NO_ERROR;
} break;
case SET_TRANSFORM: {
- Rect reg;
CHECK_INTERFACE(ISurfaceTexture, data, reply);
uint32_t transform = data.readInt32();
status_t result = setTransform(transform);
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
index 5c6d71b..cdaca47 100644
--- a/libs/gui/SurfaceTexture.cpp
+++ b/libs/gui/SurfaceTexture.cpp
@@ -76,9 +76,15 @@ static float mtxRot270[16] = {
static void mtxMul(float out[16], const float a[16], const float b[16]);
SurfaceTexture::SurfaceTexture(GLuint tex) :
- mBufferCount(MIN_BUFFER_SLOTS), mCurrentTexture(INVALID_BUFFER_SLOT),
- mCurrentTransform(0), mLastQueued(INVALID_BUFFER_SLOT),
- mLastQueuedTransform(0), mNextTransform(0), mTexName(tex) {
+ mBufferCount(MIN_BUFFER_SLOTS),
+ mCurrentTexture(INVALID_BUFFER_SLOT),
+ mCurrentTransform(0),
+ mCurrentTimestamp(0),
+ mLastQueued(INVALID_BUFFER_SLOT),
+ mLastQueuedTransform(0),
+ mLastQueuedTimestamp(0),
+ mNextTransform(0),
+ mTexName(tex) {
LOGV("SurfaceTexture::SurfaceTexture");
for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
mSlots[i].mEglImage = EGL_NO_IMAGE_KHR;
@@ -153,7 +159,7 @@ status_t SurfaceTexture::dequeueBuffer(int *buf) {
return OK;
}
-status_t SurfaceTexture::queueBuffer(int buf) {
+status_t SurfaceTexture::queueBuffer(int buf, int64_t timestamp) {
LOGV("SurfaceTexture::queueBuffer");
Mutex::Autolock lock(mMutex);
if (buf < 0 || mBufferCount <= buf) {
@@ -172,6 +178,7 @@ status_t SurfaceTexture::queueBuffer(int buf) {
mLastQueued = buf;
mLastQueuedCrop = mNextCrop;
mLastQueuedTransform = mNextTransform;
+ mLastQueuedTimestamp = timestamp;
if (mFrameAvailableListener != 0) {
mFrameAvailableListener->onFrameAvailable();
}
@@ -246,12 +253,13 @@ status_t SurfaceTexture::updateTexImage() {
mCurrentTextureBuf = mSlots[mCurrentTexture].mGraphicBuffer;
mCurrentCrop = mLastQueuedCrop;
mCurrentTransform = mLastQueuedTransform;
+ mCurrentTimestamp = mLastQueuedTimestamp;
}
return OK;
}
void SurfaceTexture::getTransformMatrix(float mtx[16]) {
- LOGV("SurfaceTexture::updateTexImage");
+ LOGV("SurfaceTexture::getTransformMatrix");
Mutex::Autolock lock(mMutex);
float xform[16];
@@ -342,6 +350,12 @@ void SurfaceTexture::getTransformMatrix(float mtx[16]) {
mtxMul(mtx, mtxFlipV, mtxBeforeFlipV);
}
+nsecs_t SurfaceTexture::getTimestamp() {
+ LOGV("SurfaceTexture::getTimestamp");
+ Mutex::Autolock lock(mMutex);
+ return mCurrentTimestamp;
+}
+
void SurfaceTexture::setFrameAvailableListener(
const sp<FrameAvailableListener>& l) {
LOGV("SurfaceTexture::setFrameAvailableListener");
diff --git a/libs/gui/SurfaceTextureClient.cpp b/libs/gui/SurfaceTextureClient.cpp
index 7f1d9cb..a4812d0 100644
--- a/libs/gui/SurfaceTextureClient.cpp
+++ b/libs/gui/SurfaceTextureClient.cpp
@@ -26,7 +26,8 @@ namespace android {
SurfaceTextureClient::SurfaceTextureClient(
const sp<ISurfaceTexture>& surfaceTexture):
mSurfaceTexture(surfaceTexture), mAllocator(0), mReqWidth(1),
- mReqHeight(1), mReqFormat(DEFAULT_FORMAT), mReqUsage(0), mMutex() {
+ mReqHeight(1), mReqFormat(DEFAULT_FORMAT), mReqUsage(0),
+ mTimestamp(NATIVE_WINDOW_TIMESTAMP_AUTO), mMutex() {
// Initialize the ANativeWindow function pointers.
ANativeWindow::setSwapInterval = setSwapInterval;
ANativeWindow::dequeueBuffer = dequeueBuffer;
@@ -135,9 +136,17 @@ int SurfaceTextureClient::lockBuffer(android_native_buffer_t* buffer) {
int SurfaceTextureClient::queueBuffer(android_native_buffer_t* buffer) {
LOGV("SurfaceTextureClient::queueBuffer");
Mutex::Autolock lock(mMutex);
+ int64_t timestamp;
+ if (mTimestamp == NATIVE_WINDOW_TIMESTAMP_AUTO) {
+ timestamp = systemTime(SYSTEM_TIME_MONOTONIC);
+ LOGV("SurfaceTextureClient::queueBuffer making up timestamp: %.2f ms",
+ timestamp / 1000000.f);
+ } else {
+ timestamp = mTimestamp;
+ }
for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
if (mSlots[i]->handle == buffer->handle) {
- return mSurfaceTexture->queueBuffer(i);
+ return mSurfaceTexture->queueBuffer(i, timestamp);
}
}
LOGE("queueBuffer: unknown buffer queued");
@@ -196,6 +205,9 @@ int SurfaceTextureClient::perform(int operation, va_list args)
case NATIVE_WINDOW_SET_BUFFERS_TRANSFORM:
res = dispatchSetBuffersTransform(args);
break;
+ case NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP:
+ res = dispatchSetBuffersTimestamp(args);
+ break;
default:
res = NAME_NOT_FOUND;
break;
@@ -240,6 +252,11 @@ int SurfaceTextureClient::dispatchSetBuffersTransform(va_list args) {
return setBuffersTransform(transform);
}
+int SurfaceTextureClient::dispatchSetBuffersTimestamp(va_list args) {
+ int64_t timestamp = va_arg(args, int64_t);
+ return setBuffersTimestamp(timestamp);
+}
+
int SurfaceTextureClient::connect(int api) {
LOGV("SurfaceTextureClient::connect");
// XXX: Implement this!
@@ -323,6 +340,14 @@ int SurfaceTextureClient::setBuffersTransform(int transform)
return err;
}
+int SurfaceTextureClient::setBuffersTimestamp(int64_t timestamp)
+{
+ LOGV("SurfaceTextureClient::setBuffersTimestamp");
+ Mutex::Autolock lock(mMutex);
+ mTimestamp = timestamp;
+ return NO_ERROR;
+}
+
void SurfaceTextureClient::freeAllBuffers() {
for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
mSlots[i] = 0;
diff --git a/libs/surfaceflinger_client/Surface.cpp b/libs/surfaceflinger_client/Surface.cpp
index 21d509a..0dfbf01 100644
--- a/libs/surfaceflinger_client/Surface.cpp
+++ b/libs/surfaceflinger_client/Surface.cpp
@@ -753,6 +753,9 @@ int Surface::perform(int operation, va_list args)
case NATIVE_WINDOW_SET_BUFFERS_TRANSFORM:
res = dispatch_set_buffers_transform( args );
break;
+ case NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP:
+ res = dispatch_set_buffers_timestamp( args );
+ break;
default:
res = NAME_NOT_FOUND;
break;
@@ -792,6 +795,11 @@ int Surface::dispatch_set_buffers_transform(va_list args) {
return setBuffersTransform(transform);
}
+int Surface::dispatch_set_buffers_timestamp(va_list args) {
+ int64_t timestamp = va_arg(args, int64_t);
+ return setBuffersTimestamp(timestamp);
+}
+
void Surface::setUsage(uint32_t reqUsage)
{
Mutex::Autolock _l(mSurfaceLock);
@@ -910,6 +918,13 @@ int Surface::setBuffersTransform(int transform)
return NO_ERROR;
}
+int Surface::setBuffersTimestamp(int64_t timestamp)
+{
+ // Surface doesn't really have anything meaningful to do with timestamps
+ // so they'll just be dropped here.
+ return NO_ERROR;
+}
+
// ----------------------------------------------------------------------------
int Surface::getConnectedApi() const
diff --git a/media/java/android/media/MediaPlayer.java b/media/java/android/media/MediaPlayer.java
index 8b29ea8..fcbe59e 100644
--- a/media/java/android/media/MediaPlayer.java
+++ b/media/java/android/media/MediaPlayer.java
@@ -623,6 +623,11 @@ public class MediaPlayer
* being played. Note that if a SurfaceTexture is used, the value
* set via setScreenOnWhilePlaying has no effect.
*
+ * The timestamps provided by {@link SurfaceTexture#getTimestamp()} for a
+ * SurfaceTexture set as the video sink have an unspecified zero point,
+ * and cannot be directly compared between different media sources or different
+ * instances of the same media source, or across multiple runs of the same
+ * program.
* @hide
*/
public void setTexture(SurfaceTexture st) {
generated by cgit v1.1 at 2025-10-20 09:22:57 +0000