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Diffstat (limited to 'include/ndk/NdkMediaCodec.h')
-rw-r--r-- | include/ndk/NdkMediaCodec.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/include/ndk/NdkMediaCodec.h b/include/ndk/NdkMediaCodec.h new file mode 100644 index 0000000..5067073 --- /dev/null +++ b/include/ndk/NdkMediaCodec.h @@ -0,0 +1,143 @@ +/* + * Copyright (C) 2014 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. + */ + +/* + * This file defines an NDK API. + * Do not remove methods. + * Do not change method signatures. + * Do not change the value of constants. + * Do not change the size of any of the classes defined in here. + * Do not reference types that are not part of the NDK. + * Do not #include files that aren't part of the NDK. + */ + +#ifndef _NDK_MEDIA_CODEC_H +#define _NDK_MEDIA_CODEC_H + +#include <android/native_window.h> + +#include "NdkMediaFormat.h" + +#ifdef __cplusplus +extern "C" { +#endif + + +struct AMediaCodec; +typedef struct AMediaCodec AMediaCodec; + +struct AMediaCodecBufferInfo { + int32_t offset; + int32_t size; + int64_t presentationTimeUs; + uint32_t flags; +}; +typedef struct AMediaCodecBufferInfo AMediaCodecBufferInfo; + +enum { + AMEDIACODEC_BUFFER_FLAG_END_OF_STREAM = 4, + AMEDIACODEC_INFO_OUTPUT_BUFFERS_CHANGED = -3, + AMEDIACODEC_INFO_OUTPUT_FORMAT_CHANGED = -2, + AMEDIACODEC_INFO_TRY_AGAIN_LATER = -1 +}; + + +/** + * Create decoder by name. Use this if you know the exact codec you want to use. + */ +AMediaCodec* AMediaCodec_createByCodecName(const char *name); + +/** + * Create codec by mime type. Most applications will use this, specifying a + * mime type obtained from media extractor. + */ +AMediaCodec* AMediaCodec_createByCodecType(const char *mime_type); + +/** + * Create encoder by name. + */ +AMediaCodec* AMediaCodec_createEncoderByName(const char *name); + +/** + * delete the codec and free its resources + */ +int AMediaCodec_delete(AMediaCodec*); + +/** + * Configure the codec. For decoding you would typically get the format from an extractor. + */ +int AMediaCodec_configure(AMediaCodec*, AMediaFormat *format, ANativeWindow* surface); // TODO: other args + +/** + * Start the codec. A codec must be configured before it can be started, and must be started + * before buffers can be sent to it. + */ +int AMediaCodec_start(AMediaCodec*); + +/** + * Stop the codec. + */ +int AMediaCodec_stop(AMediaCodec*); + +/* + * Flush the codec's input and output. All indices previously returned from calls to + * AMediaCodec_dequeueInputBuffer and AMediaCodec_dequeueOutputBuffer become invalid. + */ +int AMediaCodec_flush(AMediaCodec*); + +/** + * Get an input buffer. The specified buffer index must have been previously obtained from + * dequeueInputBuffer, and not yet queued. + */ +uint8_t* AMediaCodec_getInputBuffer(AMediaCodec*, size_t idx, size_t *out_size); + +/** + * Get an output buffer. The specified buffer index must have been previously obtained from + * dequeueOutputBuffer, and not yet queued. + */ +uint8_t* AMediaCodec_getOutputBuffer(AMediaCodec*, size_t idx, size_t *out_size); + +/** + * Get the index of the next available input buffer. An app will typically use this with + * getInputBuffer() to get a pointer to the buffer, then copy the data to be encoded or decoded + * into the buffer before passing it to the codec. + */ +ssize_t AMediaCodec_dequeueInputBuffer(AMediaCodec*, int64_t timeoutUs); + +/** + * Send the specified buffer to the codec for processing. + */ +int AMediaCodec_queueInputBuffer(AMediaCodec*, + size_t idx, off_t offset, size_t size, uint64_t time, uint32_t flags); + +/** + * Get the index of the next available buffer of processed data. + */ +ssize_t AMediaCodec_dequeueOutputBuffer(AMediaCodec*, AMediaCodecBufferInfo *info, int64_t timeoutUs); +AMediaFormat* AMediaCodec_getOutputFormat(AMediaCodec*); + +/** + * Release and optionally render the specified buffer. + */ +int AMediaCodec_releaseOutputBuffer(AMediaCodec*, size_t idx, bool render); + + + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif //_NDK_MEDIA_CODEC_H |