dom/media/wave/WaveDecoder.cpp
author Masayuki Nakano <masayuki@d-toybox.com>
Sun, 16 Jan 2022 06:21:17 +0000
changeset 604634 9ef0614a59629916c1e182eb8eda055b0b0e8b32
parent 538158 3f8100fb74318f9e0b3b6351ade737994d13bcf8
permissions -rw-r--r--
Bug 1749299 - Make `HTMLEditor::HandleInsertLinefeed()` stop handling it if insertion point cannot have text nodes r=m_kato Ideally, it should not be called when the editor cannot insert new text node. However, the callers are complicated. Therefore, let's check in it for avoiding making the callers more complicated. Fortunately, this is not realistic path for normal web apps. Therefore, the compatibility of the behavior is not matter. That's the reason why this patch does not have a test comparing the result. Differential Revision: https://phabricator.services.mozilla.com/D135826

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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/. */

#include "WaveDecoder.h"
#include "MediaContainerType.h"
#include "MediaDecoder.h"

namespace mozilla {

/* static */
bool WaveDecoder::IsSupportedType(const MediaContainerType& aContainerType) {
  if (!MediaDecoder::IsWaveEnabled()) {
    return false;
  }
  if (aContainerType.Type() == MEDIAMIMETYPE("audio/wave") ||
      aContainerType.Type() == MEDIAMIMETYPE("audio/x-wav") ||
      aContainerType.Type() == MEDIAMIMETYPE("audio/wav") ||
      aContainerType.Type() == MEDIAMIMETYPE("audio/x-pn-wav")) {
    return (aContainerType.ExtendedType().Codecs().IsEmpty() ||
            aContainerType.ExtendedType().Codecs() == "1" ||
            aContainerType.ExtendedType().Codecs() == "3" ||
            aContainerType.ExtendedType().Codecs() == "6" ||
            aContainerType.ExtendedType().Codecs() == "7");
  }

  return false;
}

/* static */
nsTArray<UniquePtr<TrackInfo>> WaveDecoder::GetTracksInfo(
    const MediaContainerType& aType) {
  nsTArray<UniquePtr<TrackInfo>> tracks;
  if (!IsSupportedType(aType)) {
    return tracks;
  }

  const MediaCodecs& codecs = aType.ExtendedType().Codecs();
  if (codecs.IsEmpty()) {
    tracks.AppendElement(
        CreateTrackInfoWithMIMETypeAndContainerTypeExtraParameters(
            "audio/x-wav"_ns, aType));
    return tracks;
  }

  for (const auto& codec : codecs.Range()) {
    tracks.AppendElement(
        CreateTrackInfoWithMIMETypeAndContainerTypeExtraParameters(
            "audio/wave; codecs="_ns + NS_ConvertUTF16toUTF8(codec), aType));
  }
  return tracks;
}

}  // namespace mozilla