The Tor Browser: content/media/encoder/fmp4_muxer/MP4ESDS.h@44a2da4a2ab2

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this file,

     4  * You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #ifndef MP4ESDS_h_

     7 #define MP4ESDS_h_

     9 #include "nsTArray.h"

    10 #include "MuxerOperation.h"

    12 namespace mozilla {

    14 class ISOControl;

    16 /**

    17  * ESDS tag

    18  */

    19 #define ESDescrTag        0x03

    21 /**

    22  * 14496-1 '8.3.3 ES_Descriptor'.

    23  * It will get DecoderConfigDescriptor and SLConfigDescriptor from

    24  * AAC CSD data.

    25  */

    26 class ES_Descriptor : public MuxerOperation {

    27 public:

    28   // ISO BMFF members

    29   uint8_t tag;      // ESDescrTag

    30   uint8_t length;

    31   uint16_t ES_ID;

    32   std::bitset<1> streamDependenceFlag;

    33   std::bitset<1> URL_Flag;

    34   std::bitset<1> reserved;

    35   std::bitset<5> streamPriority;

    37   nsTArray<uint8_t> DecodeSpecificInfo;

    39   // MuxerOperation methods

    40   nsresult Generate(uint32_t* aBoxSize) MOZ_OVERRIDE;

    41   nsresult Write() MOZ_OVERRIDE;

    42   nsresult Find(const nsACString& aType,

    43                 nsTArray<nsRefPtr<MuxerOperation>>& aOperations) MOZ_OVERRIDE;

    45   // ES_Descriptor methods

    46   ES_Descriptor(ISOControl* aControl);

    47   ~ES_Descriptor();

    49 protected:

    50   ISOControl* mControl;

    51 };

    53 // 14496-14 5.6 'Sample Description Boxes'

    54 // Box type: 'esds'

    55 class ESDBox : public FullBox {

    56 public:

    57   // ISO BMFF members

    58   nsRefPtr<ES_Descriptor> es_descriptor;

    60   // MuxerOperation methods

    61   nsresult Generate(uint32_t* aBoxSize) MOZ_OVERRIDE;

    62   nsresult Write() MOZ_OVERRIDE;

    64   // ESDBox methods

    65   ESDBox(ISOControl* aControl);

    66   ~ESDBox();

    67 };

    69 // 14496-14 5.6 'Sample Description Boxes'

    70 // Box type: 'mp4a'

    71 class MP4AudioSampleEntry : public AudioSampleEntry {

    72 public:

    73   // ISO BMFF members

    74   nsRefPtr<ESDBox> es;

    76   // MuxerOperation methods

    77   nsresult Generate(uint32_t* aBoxSize) MOZ_OVERRIDE;

    78   nsresult Write() MOZ_OVERRIDE;

    80   // MP4AudioSampleEntry methods

    81   MP4AudioSampleEntry(ISOControl* aControl);

    82   ~MP4AudioSampleEntry();

    83 };

    85 }

    87 #endif // MP4ESDS_h_

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