diff options
Diffstat (limited to 'include/media/IOMX.h')
| -rw-r--r-- | include/media/IOMX.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/include/media/IOMX.h b/include/media/IOMX.h new file mode 100644 index 0000000..5c61c50 --- /dev/null +++ b/include/media/IOMX.h @@ -0,0 +1,176 @@ +/* + * 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_ |