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Diffstat (limited to 'include/media/stagefright/MetadataBufferType.h')
-rw-r--r-- | include/media/stagefright/MetadataBufferType.h | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/include/media/stagefright/MetadataBufferType.h b/include/media/stagefright/MetadataBufferType.h deleted file mode 100644 index 4eaf8ac..0000000 --- a/include/media/stagefright/MetadataBufferType.h +++ /dev/null @@ -1,94 +0,0 @@ -/* - * Copyright (C) 2011 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 METADATA_BUFFER_TYPE_H -#define METADATA_BUFFER_TYPE_H - -#ifdef __cplusplus -extern "C" { -namespace android { -#endif - -/* - * MetadataBufferType defines the type of the metadata buffers that - * can be passed to video encoder component for encoding, via Stagefright - * media recording framework. To see how to work with the metadata buffers - * in media recording framework, please consult HardwareAPI.h - * - * The creator of metadata buffers and video encoder share common knowledge - * on what is actually being stored in these metadata buffers, and - * how the information can be used by the video encoder component - * to locate the actual pixel data as the source input for video - * encoder, plus whatever other information that is necessary. Stagefright - * media recording framework does not need to know anything specific about the - * metadata buffers, except for receving each individual metadata buffer - * as the source input, making a copy of the metadata buffer, and passing the - * copy via OpenMAX API to the video encoder component. - * - * The creator of the metadata buffers must ensure that the first - * 4 bytes in every metadata buffer indicates its buffer type, - * and the rest of the metadata buffer contains the - * actual metadata information. When a video encoder component receives - * a metadata buffer, it uses the first 4 bytes in that buffer to find - * out the type of the metadata buffer, and takes action appropriate - * to that type of metadata buffers (for instance, locate the actual - * pixel data input and then encoding the input data to produce a - * compressed output buffer). - * - * The following shows the layout of a metadata buffer, - * where buffer type is a 4-byte field of MetadataBufferType, - * and the payload is the metadata information. - * - * -------------------------------------------------------------- - * | buffer type | payload | - * -------------------------------------------------------------- - * - */ -typedef enum { - - /* - * kMetadataBufferTypeCameraSource is used to indicate that - * the source of the metadata buffer is the camera component. - */ - kMetadataBufferTypeCameraSource = 0, - - /* - * kMetadataBufferTypeGrallocSource is used to indicate that - * the payload of the metadata buffers can be interpreted as - * a buffer_handle_t. - * So in this case,the metadata that the encoder receives - * will have a byte stream that consists of two parts: - * 1. First, there is an integer indicating that it is a GRAlloc - * source (kMetadataBufferTypeGrallocSource) - * 2. This is followed by the buffer_handle_t that is a handle to the - * GRalloc buffer. The encoder needs to interpret this GRalloc handle - * and encode the frames. - * -------------------------------------------------------------- - * | kMetadataBufferTypeGrallocSource | sizeof(buffer_handle_t) | - * -------------------------------------------------------------- - */ - kMetadataBufferTypeGrallocSource = 1, - - // Add more here... - -} MetadataBufferType; - -#ifdef __cplusplus -} // namespace android -} -#endif - -#endif // METADATA_BUFFER_TYPE_H |