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android_frameworks_base/media/libmedia/IMediaRecorder.cpp
Jamie Gennis 85cfdd0112 Change the framework to use the new camera preview path. 
This change makes the camera HAL interface take an ANativeWindow interface from
which all the camera preview buffers will be allocated.  The framework code
running in application processes now passes a Surface object rather than an
ISurface to the camera server via Binder when setting the preview surface.  The
camera server then forwards that Surface object (which implements the
ANativeWindow interface) to the camera HAL, which uses it to communicate with
SurfaceFlinger to allocate the camera preview buffers.

Change-Id: Ie438f721559cd7de5e4f848a26d96360dda07b5f
2010-08-23 14:31:30 -07:00

431 lines
14 KiB
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/*
**
** Copyright 2008, 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_NDEBUG 0
#define LOG_TAG "IMediaRecorder"
#include <utils/Log.h>
#include <binder/Parcel.h>
#include <surfaceflinger/Surface.h>
#include <camera/ICamera.h>
#include <media/IMediaRecorderClient.h>
#include <media/IMediaRecorder.h>
#include <unistd.h>
namespace android {
enum {
RELEASE = IBinder::FIRST_CALL_TRANSACTION,
INIT,
CLOSE,
RESET,
STOP,
START,
PREPARE,
GET_MAX_AMPLITUDE,
SET_VIDEO_SOURCE,
SET_AUDIO_SOURCE,
SET_OUTPUT_FORMAT,
SET_VIDEO_ENCODER,
SET_AUDIO_ENCODER,
SET_OUTPUT_FILE_PATH,
SET_OUTPUT_FILE_FD,
SET_VIDEO_SIZE,
SET_VIDEO_FRAMERATE,
SET_PARAMETERS,
SET_PREVIEW_SURFACE,
SET_CAMERA,
SET_LISTENER
};
class BpMediaRecorder: public BpInterface<IMediaRecorder>
{
public:
BpMediaRecorder(const sp<IBinder>& impl)
: BpInterface<IMediaRecorder>(impl)
{
}
status_t setCamera(const sp<ICamera>& camera)
{
LOGV("setCamera(%p)", camera.get());
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeStrongBinder(camera->asBinder());
remote()->transact(SET_CAMERA, data, &reply);
return reply.readInt32();
}
status_t setPreviewSurface(const sp<Surface>& surface)
{
LOGV("setPreviewSurface(%p)", surface.get());
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
Surface::writeToParcel(surface, &data);
remote()->transact(SET_PREVIEW_SURFACE, data, &reply);
return reply.readInt32();
}
status_t init()
{
LOGV("init");
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
remote()->transact(INIT, data, &reply);
return reply.readInt32();
}
status_t setVideoSource(int vs)
{
LOGV("setVideoSource(%d)", vs);
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeInt32(vs);
remote()->transact(SET_VIDEO_SOURCE, data, &reply);
return reply.readInt32();
}
status_t setAudioSource(int as)
{
LOGV("setAudioSource(%d)", as);
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeInt32(as);
remote()->transact(SET_AUDIO_SOURCE, data, &reply);
return reply.readInt32();
}
status_t setOutputFormat(int of)
{
LOGV("setOutputFormat(%d)", of);
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeInt32(of);
remote()->transact(SET_OUTPUT_FORMAT, data, &reply);
return reply.readInt32();
}
status_t setVideoEncoder(int ve)
{
LOGV("setVideoEncoder(%d)", ve);
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeInt32(ve);
remote()->transact(SET_VIDEO_ENCODER, data, &reply);
return reply.readInt32();
}
status_t setAudioEncoder(int ae)
{
LOGV("setAudioEncoder(%d)", ae);
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeInt32(ae);
remote()->transact(SET_AUDIO_ENCODER, data, &reply);
return reply.readInt32();
}
status_t setOutputFile(const char* path)
{
LOGV("setOutputFile(%s)", path);
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeCString(path);
remote()->transact(SET_OUTPUT_FILE_PATH, data, &reply);
return reply.readInt32();
}
status_t setOutputFile(int fd, int64_t offset, int64_t length) {
LOGV("setOutputFile(%d, %lld, %lld)", fd, offset, length);
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeFileDescriptor(fd);
data.writeInt64(offset);
data.writeInt64(length);
remote()->transact(SET_OUTPUT_FILE_FD, data, &reply);
return reply.readInt32();
}
status_t setVideoSize(int width, int height)
{
LOGV("setVideoSize(%dx%d)", width, height);
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeInt32(width);
data.writeInt32(height);
remote()->transact(SET_VIDEO_SIZE, data, &reply);
return reply.readInt32();
}
status_t setVideoFrameRate(int frames_per_second)
{
LOGV("setVideoFrameRate(%d)", frames_per_second);
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeInt32(frames_per_second);
remote()->transact(SET_VIDEO_FRAMERATE, data, &reply);
return reply.readInt32();
}
status_t setParameters(const String8& params)
{
LOGV("setParameter(%s)", params.string());
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeString8(params);
remote()->transact(SET_PARAMETERS, data, &reply);
return reply.readInt32();
}
status_t setListener(const sp<IMediaRecorderClient>& listener)
{
LOGV("setListener(%p)", listener.get());
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
data.writeStrongBinder(listener->asBinder());
remote()->transact(SET_LISTENER, data, &reply);
return reply.readInt32();
}
status_t prepare()
{
LOGV("prepare");
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
remote()->transact(PREPARE, data, &reply);
return reply.readInt32();
}
status_t getMaxAmplitude(int* max)
{
LOGV("getMaxAmplitude");
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
remote()->transact(GET_MAX_AMPLITUDE, data, &reply);
*max = reply.readInt32();
return reply.readInt32();
}
status_t start()
{
LOGV("start");
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
remote()->transact(START, data, &reply);
return reply.readInt32();
}
status_t stop()
{
LOGV("stop");
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
remote()->transact(STOP, data, &reply);
return reply.readInt32();
}
status_t reset()
{
LOGV("reset");
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
remote()->transact(RESET, data, &reply);
return reply.readInt32();
}
status_t close()
{
LOGV("close");
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
remote()->transact(CLOSE, data, &reply);
return reply.readInt32();
}
status_t release()
{
LOGV("release");
Parcel data, reply;
data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
remote()->transact(RELEASE, data, &reply);
return reply.readInt32();
}
};
IMPLEMENT_META_INTERFACE(MediaRecorder, "android.media.IMediaRecorder");
// ----------------------------------------------------------------------
status_t BnMediaRecorder::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case RELEASE: {
LOGV("RELEASE");
CHECK_INTERFACE(IMediaRecorder, data, reply);
reply->writeInt32(release());
return NO_ERROR;
} break;
case INIT: {
LOGV("INIT");
CHECK_INTERFACE(IMediaRecorder, data, reply);
reply->writeInt32(init());
return NO_ERROR;
} break;
case CLOSE: {
LOGV("CLOSE");
CHECK_INTERFACE(IMediaRecorder, data, reply);
reply->writeInt32(close());
return NO_ERROR;
} break;
case RESET: {
LOGV("RESET");
CHECK_INTERFACE(IMediaRecorder, data, reply);
reply->writeInt32(reset());
return NO_ERROR;
} break;
case STOP: {
LOGV("STOP");
CHECK_INTERFACE(IMediaRecorder, data, reply);
reply->writeInt32(stop());
return NO_ERROR;
} break;
case START: {
LOGV("START");
CHECK_INTERFACE(IMediaRecorder, data, reply);
reply->writeInt32(start());
return NO_ERROR;
} break;
case PREPARE: {
LOGV("PREPARE");
CHECK_INTERFACE(IMediaRecorder, data, reply);
reply->writeInt32(prepare());
return NO_ERROR;
} break;
case GET_MAX_AMPLITUDE: {
LOGV("GET_MAX_AMPLITUDE");
CHECK_INTERFACE(IMediaRecorder, data, reply);
int max = 0;
status_t ret = getMaxAmplitude(&max);
reply->writeInt32(max);
reply->writeInt32(ret);
return NO_ERROR;
} break;
case SET_VIDEO_SOURCE: {
LOGV("SET_VIDEO_SOURCE");
CHECK_INTERFACE(IMediaRecorder, data, reply);
int vs = data.readInt32();
reply->writeInt32(setVideoSource(vs));
return NO_ERROR;
} break;
case SET_AUDIO_SOURCE: {
LOGV("SET_AUDIO_SOURCE");
CHECK_INTERFACE(IMediaRecorder, data, reply);
int as = data.readInt32();
reply->writeInt32(setAudioSource(as));
return NO_ERROR;
} break;
case SET_OUTPUT_FORMAT: {
LOGV("SET_OUTPUT_FORMAT");
CHECK_INTERFACE(IMediaRecorder, data, reply);
int of = data.readInt32();
reply->writeInt32(setOutputFormat(of));
return NO_ERROR;
} break;
case SET_VIDEO_ENCODER: {
LOGV("SET_VIDEO_ENCODER");
CHECK_INTERFACE(IMediaRecorder, data, reply);
int ve = data.readInt32();
reply->writeInt32(setVideoEncoder(ve));
return NO_ERROR;
} break;
case SET_AUDIO_ENCODER: {
LOGV("SET_AUDIO_ENCODER");
CHECK_INTERFACE(IMediaRecorder, data, reply);
int ae = data.readInt32();
reply->writeInt32(setAudioEncoder(ae));
return NO_ERROR;
} break;
case SET_OUTPUT_FILE_PATH: {
LOGV("SET_OUTPUT_FILE_PATH");
CHECK_INTERFACE(IMediaRecorder, data, reply);
const char* path = data.readCString();
reply->writeInt32(setOutputFile(path));
return NO_ERROR;
} break;
case SET_OUTPUT_FILE_FD: {
LOGV("SET_OUTPUT_FILE_FD");
CHECK_INTERFACE(IMediaRecorder, data, reply);
int fd = dup(data.readFileDescriptor());
int64_t offset = data.readInt64();
int64_t length = data.readInt64();
reply->writeInt32(setOutputFile(fd, offset, length));
::close(fd);
return NO_ERROR;
} break;
case SET_VIDEO_SIZE: {
LOGV("SET_VIDEO_SIZE");
CHECK_INTERFACE(IMediaRecorder, data, reply);
int width = data.readInt32();
int height = data.readInt32();
reply->writeInt32(setVideoSize(width, height));
return NO_ERROR;
} break;
case SET_VIDEO_FRAMERATE: {
LOGV("SET_VIDEO_FRAMERATE");
CHECK_INTERFACE(IMediaRecorder, data, reply);
int frames_per_second = data.readInt32();
reply->writeInt32(setVideoFrameRate(frames_per_second));
return NO_ERROR;
} break;
case SET_PARAMETERS: {
LOGV("SET_PARAMETER");
CHECK_INTERFACE(IMediaRecorder, data, reply);
reply->writeInt32(setParameters(data.readString8()));
return NO_ERROR;
} break;
case SET_LISTENER: {
LOGV("SET_LISTENER");
CHECK_INTERFACE(IMediaRecorder, data, reply);
sp<IMediaRecorderClient> listener =
interface_cast<IMediaRecorderClient>(data.readStrongBinder());
reply->writeInt32(setListener(listener));
return NO_ERROR;
} break;
case SET_PREVIEW_SURFACE: {
LOGV("SET_PREVIEW_SURFACE");
CHECK_INTERFACE(IMediaRecorder, data, reply);
sp<Surface> surface = Surface::readFromParcel(data);
reply->writeInt32(setPreviewSurface(surface));
return NO_ERROR;
} break;
case SET_CAMERA: {
LOGV("SET_CAMERA");
CHECK_INTERFACE(IMediaRecorder, data, reply);
sp<ICamera> camera = interface_cast<ICamera>(data.readStrongBinder());
reply->writeInt32(setCamera(camera));
return NO_ERROR;
} break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
// ----------------------------------------------------------------------------
}; // namespace android
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