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path: root/services/camera/libcameraservice/device3/Camera3Stream.cpp
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Diffstat (limited to 'services/camera/libcameraservice/device3/Camera3Stream.cpp')
-rw-r--r--services/camera/libcameraservice/device3/Camera3Stream.cpp33
1 files changed, 27 insertions, 6 deletions
diff --git a/services/camera/libcameraservice/device3/Camera3Stream.cpp b/services/camera/libcameraservice/device3/Camera3Stream.cpp
index 2527fd6..96299b3 100644
--- a/services/camera/libcameraservice/device3/Camera3Stream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Stream.cpp
@@ -53,7 +53,8 @@ Camera3Stream::Camera3Stream(int id,
mName(String8::format("Camera3Stream[%d]", id)),
mMaxSize(maxSize),
mState(STATE_CONSTRUCTED),
- mStatusId(StatusTracker::NO_STATUS_ID) {
+ mStatusId(StatusTracker::NO_STATUS_ID),
+ mLastMaxCount(Camera3StreamInterface::ALLOCATE_PIPELINE_MAX) {
camera3_stream::stream_type = type;
camera3_stream::width = width;
@@ -252,12 +253,18 @@ bool Camera3Stream::isUnpreparable() {
return mStreamUnpreparable;
}
-status_t Camera3Stream::startPrepare() {
+status_t Camera3Stream::startPrepare(int maxCount) {
ATRACE_CALL();
Mutex::Autolock l(mLock);
status_t res = OK;
+ if (maxCount < 0) {
+ ALOGE("%s: Stream %d: Can't prepare stream if max buffer count (%d) is < 0",
+ __FUNCTION__, mId, maxCount);
+ return BAD_VALUE;
+ }
+
// This function should be only called when the stream is configured already.
if (mState != STATE_CONFIGURED) {
ALOGE("%s: Stream %d: Can't prepare stream if stream is not in CONFIGURED "
@@ -279,9 +286,19 @@ status_t Camera3Stream::startPrepare() {
return INVALID_OPERATION;
}
+
+
+ size_t pipelineMax = getBufferCountLocked();
+ size_t clampedCount = (pipelineMax < static_cast<size_t>(maxCount)) ?
+ pipelineMax : static_cast<size_t>(maxCount);
+ size_t bufferCount = (maxCount == Camera3StreamInterface::ALLOCATE_PIPELINE_MAX) ?
+ pipelineMax : clampedCount;
+
+ mPrepared = bufferCount <= mLastMaxCount;
+
if (mPrepared) return OK;
- size_t bufferCount = getBufferCountLocked();
+ mLastMaxCount = bufferCount;
mPreparedBuffers.insertAt(camera3_stream_buffer_t(), /*index*/0, bufferCount);
mPreparedBufferIdx = 0;
@@ -438,8 +455,9 @@ status_t Camera3Stream::getBuffer(camera3_stream_buffer *buffer) {
res = mOutputBufferReturnedSignal.waitRelative(mLock, kWaitForBufferDuration);
if (res != OK) {
if (res == TIMED_OUT) {
- ALOGE("%s: wait for output buffer return timed out after %lldms", __FUNCTION__,
- kWaitForBufferDuration / 1000000LL);
+ ALOGE("%s: wait for output buffer return timed out after %lldms (max_buffers %d)",
+ __FUNCTION__, kWaitForBufferDuration / 1000000LL,
+ camera3_stream::max_buffers);
}
return res;
}
@@ -469,9 +487,12 @@ status_t Camera3Stream::returnBuffer(const camera3_stream_buffer &buffer,
status_t res = returnBufferLocked(buffer, timestamp);
if (res == OK) {
fireBufferListenersLocked(buffer, /*acquired*/false, /*output*/true);
- mOutputBufferReturnedSignal.signal();
}
+ // Even if returning the buffer failed, we still want to signal whoever is waiting for the
+ // buffer to be returned.
+ mOutputBufferReturnedSignal.signal();
+
return res;
}