text: /*
   * Android MediaCodec Wrapper
   *
   * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
   *
   * This file is part of FFmpeg.
   *
   * FFmpeg is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * FFmpeg is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with FFmpeg; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   */
  
  #ifndef AVCODEC_MEDIACODEC_WRAPPER_H
  #define AVCODEC_MEDIACODEC_WRAPPER_H
  
  #include <stdint.h>
  #include <sys/types.h>
  
  /**
   * The following API around MediaCodec and MediaFormat is based on the
   * NDK one provided by Google since Android 5.0.
   *
   * Differences from the NDK API:
   *
   * Buffers returned by ff_AMediaFormat_toString and ff_AMediaFormat_getString
   * are newly allocated buffer and must be freed by the user after use.
   *
   * The MediaCrypto API is not implemented.
   *
   * ff_AMediaCodec_infoTryAgainLater, ff_AMediaCodec_infoOutputBuffersChanged,
   * ff_AMediaCodec_infoOutputFormatChanged, ff_AMediaCodec_cleanOutputBuffers
   * ff_AMediaCodec_getName and ff_AMediaCodec_getBufferFlagEndOfStream are not
   * part of the original NDK API and are convenience functions to hide JNI
   * implementation.
   *
   * The API around MediaCodecList is not part of the NDK (and is lacking as
   * we still need to retreive the codec name to work around faulty decoders
   * and encoders).
   *
   * For documentation, please refers to NdkMediaCodec.h NdkMediaFormat.h and
   * http://developer.android.com/reference/android/media/MediaCodec.html.
   *
   */
  
  int ff_AMediaCodecProfile_getProfileFromAVCodecContext(AVCodecContext *avctx);
  
  char *ff_AMediaCodecList_getCodecNameByType(const char *mime, int profile, int encoder, void *log_ctx);
  
  struct FFAMediaFormat;
  typedef struct FFAMediaFormat FFAMediaFormat;
  
  FFAMediaFormat *ff_AMediaFormat_new(void);
  int ff_AMediaFormat_delete(FFAMediaFormat* format);
  
  char* ff_AMediaFormat_toString(FFAMediaFormat* format);
  
  int ff_AMediaFormat_getInt32(FFAMediaFormat* format, const char *name, int32_t *out);
  int ff_AMediaFormat_getInt64(FFAMediaFormat* format, const char *name, int64_t *out);
  int ff_AMediaFormat_getFloat(FFAMediaFormat* format, const char *name, float *out);
  int ff_AMediaFormat_getBuffer(FFAMediaFormat* format, const char *name, void** data, size_t *size);
  int ff_AMediaFormat_getString(FFAMediaFormat* format, const char *name, const char **out);
  
  void ff_AMediaFormat_setInt32(FFAMediaFormat* format, const char* name, int32_t value);
  void ff_AMediaFormat_setInt64(FFAMediaFormat* format, const char* name, int64_t value);
  void ff_AMediaFormat_setFloat(FFAMediaFormat* format, const char* name, float value);
  void ff_AMediaFormat_setString(FFAMediaFormat* format, const char* name, const char* value);
  void ff_AMediaFormat_setBuffer(FFAMediaFormat* format, const char* name, void* data, size_t size);
  
  struct FFAMediaCodec;
  typedef struct FFAMediaCodec FFAMediaCodec;
  typedef struct FFAMediaCodecCryptoInfo FFAMediaCodecCryptoInfo;
  
  struct FFAMediaCodecBufferInfo {
      int32_t offset;
      int32_t size;
      int64_t presentationTimeUs;
      uint32_t flags;
  };
  typedef struct FFAMediaCodecBufferInfo FFAMediaCodecBufferInfo;
  
  char *ff_AMediaCodec_getName(FFAMediaCodec *codec);
  
  FFAMediaCodec* ff_AMediaCodec_createCodecByName(const char *name);
  FFAMediaCodec* ff_AMediaCodec_createDecoderByType(const char *mime_type);
  FFAMediaCodec* ff_AMediaCodec_createEncoderByType(const char *mime_type);
  
  int ff_AMediaCodec_configure(FFAMediaCodec* codec, const FFAMediaFormat* format, void* surface, void *crypto, uint32_t flags);
  int ff_AMediaCodec_start(FFAMediaCodec* codec);
  int ff_AMediaCodec_stop(FFAMediaCodec* codec);
  int ff_AMediaCodec_flush(FFAMediaCodec* codec);
  int ff_AMediaCodec_delete(FFAMediaCodec* codec);
  
  uint8_t* ff_AMediaCodec_getInputBuffer(FFAMediaCodec* codec, size_t idx, size_t *out_size);
  uint8_t* ff_AMediaCodec_getOutputBuffer(FFAMediaCodec* codec, size_t idx, size_t *out_size);
  
  ssize_t ff_AMediaCodec_dequeueInputBuffer(FFAMediaCodec* codec, int64_t timeoutUs);
  int ff_AMediaCodec_queueInputBuffer(FFAMediaCodec* codec, size_t idx, off_t offset, size_t size, uint64_t time, uint32_t flags);
  
  ssize_t ff_AMediaCodec_dequeueOutputBuffer(FFAMediaCodec* codec, FFAMediaCodecBufferInfo *info, int64_t timeoutUs);
  FFAMediaFormat* ff_AMediaCodec_getOutputFormat(FFAMediaCodec* codec);
  
  int ff_AMediaCodec_releaseOutputBuffer(FFAMediaCodec* codec, size_t idx, int render);
  int ff_AMediaCodec_releaseOutputBufferAtTime(FFAMediaCodec *codec, size_t idx, int64_t timestampNs);
  
  int ff_AMediaCodec_infoTryAgainLater(FFAMediaCodec *codec, ssize_t idx);
  int ff_AMediaCodec_infoOutputBuffersChanged(FFAMediaCodec *codec, ssize_t idx);
  int ff_AMediaCodec_infoOutputFormatChanged(FFAMediaCodec *codec, ssize_t indx);
  
  int ff_AMediaCodec_getBufferFlagCodecConfig (FFAMediaCodec *codec);
  int ff_AMediaCodec_getBufferFlagEndOfStream(FFAMediaCodec *codec);
  int ff_AMediaCodec_getBufferFlagKeyFrame(FFAMediaCodec *codec);
  
  int ff_AMediaCodec_getConfigureFlagEncode(FFAMediaCodec *codec);
  
  int ff_AMediaCodec_cleanOutputBuffers(FFAMediaCodec *codec);
  
  #endif /* AVCODEC_MEDIACODEC_WRAPPER_H */
  