/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef DECODER_DATA_H_
#define DECODER_DATA_H_

#include "mozilla/Types.h"
#include "mozilla/Vector.h"
#include "nsTArray.h"
#include "nsAutoPtr.h"
#include "nsRefPtr.h"

namespace stagefright
{
template <typename T> class sp;
class MetaData;
class MediaBuffer;
}

namespace mp4_demuxer
{

class MP4Demuxer;

template <typename T>
class nsRcTArray : public nsTArray<T> {
  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(nsRcTArray);

private:
  ~nsRcTArray() {}
};

typedef nsRcTArray<uint8_t> ByteBuffer;

struct PsshInfo
{
  PsshInfo() {}
  PsshInfo(const PsshInfo& aOther) : uuid(aOther.uuid), data(aOther.data) {}
  nsTArray<uint8_t> uuid;
  nsTArray<uint8_t> data;
};

class CryptoFile
{
public:
  CryptoFile() {}
  CryptoFile(const CryptoFile& aCryptoFile) : valid(aCryptoFile.valid)
  {
    pssh.AppendElements(aCryptoFile.pssh);
  }

  void Update(stagefright::sp<stagefright::MetaData>& aMetaData)
  {
    valid = DoUpdate(aMetaData);
  }

  bool valid;
  nsTArray<PsshInfo> pssh;

private:
  bool DoUpdate(stagefright::sp<stagefright::MetaData>& aMetaData);
};

class CryptoTrack
{
public:
  CryptoTrack() : valid(false) {}
  void Update(stagefright::sp<stagefright::MetaData>& aMetaData);

  bool valid;
  int32_t mode;
  int32_t iv_size;
  nsTArray<uint8_t> key;
};

class CryptoSample : public CryptoTrack
{
public:
  void Update(stagefright::sp<stagefright::MetaData>& aMetaData);

  nsTArray<uint16_t> plain_sizes;
  nsTArray<uint32_t> encrypted_sizes;
  nsTArray<uint8_t> iv;
};

class TrackConfig
{
public:
  TrackConfig() : mime_type(nullptr), mTrackId(0), duration(0), media_time(0) {}
  const char* mime_type;
  uint32_t mTrackId;
  int64_t duration;
  int64_t media_time;
  CryptoTrack crypto;

  void Update(stagefright::sp<stagefright::MetaData>& aMetaData,
              const char* aMimeType);
};

class AudioDecoderConfig : public TrackConfig
{
public:
  AudioDecoderConfig()
    : channel_count(0)
    , bits_per_sample(0)
    , samples_per_second(0)
    , frequency_index(0)
    , aac_profile(0)
    , extended_profile(0)
    , extra_data(new ByteBuffer)
    , audio_specific_config(new ByteBuffer)
  {
  }

  uint32_t channel_count;
  uint32_t bits_per_sample;
  uint32_t samples_per_second;
  int8_t frequency_index;
  int8_t aac_profile;
  int8_t extended_profile;
  nsRefPtr<ByteBuffer> extra_data;
  nsRefPtr<ByteBuffer> audio_specific_config;

  void Update(stagefright::sp<stagefright::MetaData>& aMetaData,
              const char* aMimeType);
  bool IsValid();

private:
  friend class MP4Demuxer;
};

class VideoDecoderConfig : public TrackConfig
{
public:
  VideoDecoderConfig()
    : display_width(0)
    , display_height(0)
    , image_width(0)
    , image_height(0)
    , extra_data(new ByteBuffer)
  {
  }

  int32_t display_width;
  int32_t display_height;

  int32_t image_width;
  int32_t image_height;

  nsRefPtr<ByteBuffer> extra_data;   // Unparsed AVCDecoderConfig payload.

  void Update(stagefright::sp<stagefright::MetaData>& aMetaData,
              const char* aMimeType);
  bool IsValid();
};

typedef int64_t Microseconds;

class MP4Sample
{
public:
  MP4Sample();
  virtual ~MP4Sample();
  MP4Sample* Clone() const;
  void Update(int64_t& aMediaTime);
  bool Pad(size_t aPaddingBytes);

  stagefright::MediaBuffer* mMediaBuffer;

  Microseconds decode_timestamp;
  Microseconds composition_timestamp;
  Microseconds duration;
  int64_t byte_offset;
  bool is_sync_point;

  uint8_t* data;
  size_t size;

  CryptoSample crypto;
  nsRefPtr<ByteBuffer> extra_data;

  bool Prepend(const uint8_t* aData, size_t aSize);
  bool Replace(const uint8_t* aData, size_t aSize);

  nsAutoArrayPtr<uint8_t> extra_buffer;
private:
  MP4Sample(const MP4Sample&); // Not implemented
};
}

#endif
