The Tor Browser: content/media/encoder/fmp4_muxer/AMRBox.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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 #include "ISOControl.h"

     7 #include "ISOMediaBoxes.h"

     8 #include "AMRBox.h"

     9 #include "ISOTrackMetadata.h"

    11 namespace mozilla {

    13 nsresult

    14 AMRSampleEntry::Generate(uint32_t* aBoxSize)

    15 {

    16   uint32_t box_size;

    17   nsresult rv = amr_special_box->Generate(&box_size);

    18   NS_ENSURE_SUCCESS(rv, rv);

    19   size += box_size;

    21   *aBoxSize = size;

    22   return NS_OK;

    23 }

    25 nsresult

    26 AMRSampleEntry::Write()

    27 {

    28   BoxSizeChecker checker(mControl, size);

    29   nsresult rv;

    30   rv = AudioSampleEntry::Write();

    31   NS_ENSURE_SUCCESS(rv, rv);

    32   rv = amr_special_box->Write();

    33   NS_ENSURE_SUCCESS(rv, rv);

    35   return NS_OK;

    36 }

    38 AMRSampleEntry::AMRSampleEntry(ISOControl* aControl)

    39   : AudioSampleEntry(NS_LITERAL_CSTRING("samr"), aControl)

    40 {

    41   amr_special_box = new AMRSpecificBox(aControl);

    42   MOZ_COUNT_CTOR(AMRSampleEntry);

    43 }

    45 AMRSampleEntry::~AMRSampleEntry()

    46 {

    47   MOZ_COUNT_DTOR(AMRSampleEntry);

    48 }

    50 nsresult

    51 AMRSpecificBox::Generate(uint32_t* aBoxSize)

    52 {

    53   nsresult rv;

    54   FragmentBuffer* frag = mControl->GetFragment(Audio_Track);

    55   rv = frag->GetCSD(amrDecSpecInfo);

    56   NS_ENSURE_SUCCESS(rv, rv);

    58   size += amrDecSpecInfo.Length();

    59   *aBoxSize = size;

    61   return NS_OK;

    62 }

    64 nsresult

    65 AMRSpecificBox::Write()

    66 {

    67   BoxSizeChecker checker(mControl, size);

    68   Box::Write();

    69   mControl->Write(amrDecSpecInfo.Elements(), amrDecSpecInfo.Length());

    70   return NS_OK;

    71 }

    73 AMRSpecificBox::AMRSpecificBox(ISOControl* aControl)

    74   : Box(NS_LITERAL_CSTRING("damr"), aControl)

    75 {

    76   MOZ_COUNT_CTOR(AMRSpecificBox);

    77 }

    79 AMRSpecificBox::~AMRSpecificBox()

    80 {

    81   MOZ_COUNT_DTOR(AMRSpecificBox);

    82 }

    84 }

The Tor Browser / file revision