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/*
* Copyright (C) 2009 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 ANDROID_IOMX_H_
#define ANDROID_IOMX_H_
#include <binder/IInterface.h>
#include <utils/List.h>
#include <utils/String8.h>
#include <OMX_Core.h>
#define IOMX_USES_SOCKETS 0
namespace android {
class IMemory;
class IOMXObserver;
class IOMX : public IInterface {
public:
DECLARE_META_INTERFACE(OMX);
typedef void *buffer_id;
typedef void *node_id;
#if IOMX_USES_SOCKETS
// If successful, returns a socket descriptor used for further
// communication. Caller assumes ownership of "*sd".
virtual status_t connect(int *sd) = 0;
#endif
virtual status_t list_nodes(List<String8> *list) = 0;
virtual status_t allocate_node(const char *name, node_id *node) = 0;
virtual status_t free_node(node_id node) = 0;
virtual status_t send_command(
node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) = 0;
virtual status_t get_parameter(
node_id node, OMX_INDEXTYPE index,
void *params, size_t size) = 0;
virtual status_t set_parameter(
node_id node, OMX_INDEXTYPE index,
const void *params, size_t size) = 0;
virtual status_t use_buffer(
node_id node, OMX_U32 port_index, const sp<IMemory> ¶ms,
buffer_id *buffer) = 0;
virtual status_t allocate_buffer(
node_id node, OMX_U32 port_index, size_t size,
buffer_id *buffer) = 0;
virtual status_t allocate_buffer_with_backup(
node_id node, OMX_U32 port_index, const sp<IMemory> ¶ms,
buffer_id *buffer) = 0;
virtual status_t free_buffer(
node_id node, OMX_U32 port_index, buffer_id buffer) = 0;
#if !IOMX_USES_SOCKETS
virtual status_t observe_node(
node_id node, const sp<IOMXObserver> &observer) = 0;
virtual void fill_buffer(node_id node, buffer_id buffer) = 0;
virtual void empty_buffer(
node_id node,
buffer_id buffer,
OMX_U32 range_offset, OMX_U32 range_length,
OMX_U32 flags, OMX_TICKS timestamp) = 0;
#endif
};
struct omx_message {
enum {
EVENT,
EMPTY_BUFFER_DONE,
FILL_BUFFER_DONE,
#if IOMX_USES_SOCKETS
EMPTY_BUFFER,
FILL_BUFFER,
SEND_COMMAND,
DISCONNECT,
DISCONNECTED,
#endif
// reserved for OMXDecoder use.
START,
INITIAL_FILL_BUFFER,
// reserved for OMXObserver use.
QUIT_OBSERVER,
} type;
union {
// if type == EVENT
struct {
IOMX::node_id node;
OMX_EVENTTYPE event;
OMX_U32 data1;
OMX_U32 data2;
} event_data;
// if type == EMPTY_BUFFER_DONE || type == FILL_BUFFER
// || type == INITIAL_FILL_BUFFER
struct {
IOMX::node_id node;
IOMX::buffer_id buffer;
} buffer_data;
// if type == EMPTY_BUFFER || type == FILL_BUFFER_DONE
struct {
IOMX::node_id node;
IOMX::buffer_id buffer;
OMX_U32 range_offset;
OMX_U32 range_length;
OMX_U32 flags;
OMX_TICKS timestamp;
OMX_PTR platform_private; // ignored if type == EMPTY_BUFFER
} extended_buffer_data;
// if type == SEND_COMMAND
struct {
IOMX::node_id node;
OMX_COMMANDTYPE cmd;
OMX_S32 param;
} send_command_data;
} u;
};
class IOMXObserver : public IInterface {
public:
DECLARE_META_INTERFACE(OMXObserver);
virtual void on_message(const omx_message &msg) = 0;
};
////////////////////////////////////////////////////////////////////////////////
class BnOMX : public BnInterface<IOMX> {
public:
virtual status_t onTransact(
uint32_t code, const Parcel &data, Parcel *reply,
uint32_t flags = 0);
};
class BnOMXObserver : public BnInterface<IOMXObserver> {
public:
virtual status_t onTransact(
uint32_t code, const Parcel &data, Parcel *reply,
uint32_t flags = 0);
};
} // namespace android
#endif // ANDROID_IOMX_H_
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