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Merge branch 'main' into videoframe_timestamp_fixes
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‎.github/workflows/auto-publish.yml‎

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echidna_token: ECHIDNA_TOKEN_ULAW_REGISTRATION
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build_override: |
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status: NOTE-WD
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- source: hevc_codec_registration.src.html
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destination: hevc_codec_registration.html
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echidna_token: ECHIDNA_TOKEN_HEVC_REGISTRATION
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build_override: |
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status: NOTE-WD
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steps:
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# See doc at https://github.com/actions/checkout#checkout-v2
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- name: Checkout repository

‎.gitignore‎

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/index.html
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aac_codec_registration.html
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alaw_codec_registration.html
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alaw_codec_registration.html
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av1_codec_registration.html
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avc_codec_registration.html
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codec_registry.html
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flac_codec_registration.html
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hevc_codec_registration.html
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mp3_codec_registration.html
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aac_codec_registration.html
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opus_codec_registration.html
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out/
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pcm_codec_registration.html
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ulaw_codec_registration.html
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ulaw_codec_registration.html
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vorbis_codec_registration.html
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vp8_codec_registration.html
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vp9_codec_registration.html
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pcm_codec_registration.html
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alaw_codec_registration.html
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ulaw_codec_registration.html

‎README.md‎

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## WebCodecs Codec Registry
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This repository also contains the [WebCodecs Codec Registry](https://w3c.github.com/webcodecs/codec_registry.html), which provides the means to identify and avoid collisions among codec strings used in WebCodecs and provides a mechanism to define codec-specific members of WebCodecs codec configuration dictionaries. Codec-specific registrations entered in the registry are also maintained in the repository, please refer to the registry for a comprehensive list.
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This repository also contains the
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[WebCodecs Codec Registry](https://w3c.github.io/webcodecs/codec_registry.html),
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which provides the means to identify and avoid collisions among codec strings
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used in WebCodecs and provides a mechanism to define codec-specific members of
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WebCodecs codec configuration dictionaries. Codec-specific registrations entered
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in the registry are also maintained in the repository, please refer to the
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registry for a comprehensive list.

‎aac_codec_registration.src.html‎

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and therefore no {{AudioDecoderConfig.description}} is necessary.
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</dl>
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Privacy and Security Considerations {#privacy-and-security-considerations}
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Privacy Considerations {#privacy-considerations}
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==========================================================================
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Please refer to the [[WEBCODECS#privacy-considerations|Privacy Considerations]]
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and [[WEBCODECS#security-considerations|Security Considerations]] sections in
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[[WEBCODECS]].
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Please refer to the section [[WEBCODECS#privacy-considerations|Privacy
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Considerations]] in [[WEBCODECS]].
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Security Considerations {#security-considerations}
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==========================================================================
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Please refer to the section [[WEBCODECS#security-considerations|Security
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Considerations]] in [[WEBCODECS]].

‎alaw_codec_registration.src.html‎

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The [=EncodedAudioChunk/[[type]]=] for an {{EncodedAudioChunk}} containing
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A-law PCM is always "[=EncodedAudioChunkType/key=]".
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Privacy and Security Considerations {#privacy-and-security-considerations}
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Privacy Considerations {#privacy-considerations}
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==========================================================================
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Please refer to the [[WEBCODECS#privacy-considerations|Privacy Considerations]]
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and [[WEBCODECS#security-considerations|Security Considerations]] sections in
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[[WEBCODECS]].
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Please refer to the section [[WEBCODECS#privacy-considerations|Privacy
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Considerations]] in [[WEBCODECS]].
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Security Considerations {#security-considerations}
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==========================================================================
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Please refer to the section [[WEBCODECS#security-considerations|Security
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Considerations]] in [[WEBCODECS]].

‎av1_codec_registration.src.html‎

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contain a frame with a `frame_type` of `KEY_FRAME` as defined in Section
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6.8.2 of [[AV1]].
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Privacy and Security Considerations {#privacy-and-security-considerations}
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Privacy Considerations {#privacy-considerations}
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==========================================================================
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Please refer to the [[WEBCODECS#privacy-considerations|Privacy Considerations]]
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and [[WEBCODECS#security-considerations|Security Considerations]] sections in
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[[WEBCODECS]].
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Please refer to the section [[WEBCODECS#privacy-considerations|Privacy
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Considerations]] in [[WEBCODECS]].
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Security Considerations {#security-considerations}
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==========================================================================
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Please refer to the section [[WEBCODECS#security-considerations|Security
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Considerations]] in [[WEBCODECS]].

‎avc_codec_registration.src.html‎

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</xmp>
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</pre>
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The {{AvcBitstreamFormat}} determines the location of AVC Sequence Parameter
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Set (SPS) and Picture Parameter Set (PPS) data, and mechanisms for packaging
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the bitstream.
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SPS and PPS are described in greater detail in sections G.3.41 and G.3.55 of
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[[ITU-T-REC-H.264]].
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The {{AvcBitstreamFormat}} determines the location of AVC parameter sets, and
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mechanisms for packaging the bitstream.
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<dl>
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<dt><dfn enum-value for=AvcBitstreamFormat>annexb</dfn></dt>
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{{EncodedVideoChunkMetadata.decoderConfig}}.
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NOTE: This format is described in greater detail by [[iso14496-15]],
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section 5.3.3.1. This format is commonly used in .MP4 files, where the
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section 5.3. This format is commonly used in .MP4 files, where the
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player generally has random access to the media data.
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</dl>
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Privacy and Security Considerations {#privacy-and-security-considerations}
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Privacy Considerations {#privacy-considerations}
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==========================================================================
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Please refer to the section [[WEBCODECS#privacy-considerations|Privacy
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Considerations]] in [[WEBCODECS]].
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Security Considerations {#security-considerations}
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==========================================================================
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Please refer to the [[WEBCODECS#privacy-considerations|Privacy Considerations]]
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and [[WEBCODECS#security-considerations|Security Considerations]] sections in
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[[WEBCODECS]].
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Please refer to the section [[WEBCODECS#security-considerations|Security
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Considerations]] in [[WEBCODECS]].

‎codec_registry.src.html‎

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4. Candidate entries must be announced by filing an issue in the
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[WebCodecs GitHub issue tracker](https://github.com/w3c/webcodecs/issues/)
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so they can be discussed and evaluated for compliance before being added to
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the registry. If registry editors reach consensus to accept the candidate,
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a pull request should be drafted (either by editors or by the party
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requesting the candidate registration) to register the candidate. The
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the registry. If the Media Working Group reaches consensus to accept the
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candidate, a pull request should be drafted (either by editors or by the
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party requesting the candidate registration) to register the candidate. The
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registry editors will review and merge the pull request.
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Audio Codec Registry {#audio-codec-registry}
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[[WEBCODECS-MP3-CODEC-REGISTRATION]]</td>
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</tr>
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<tr>
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<td>mp4a.*</td>
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<td>mp4a.\*</td>
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<td>AAC</td>
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<td>[AAC WebCodecs
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Registration](https://www.w3.org/TR/webcodecs-aac-codec-registration/)
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[[WEBCODECS-ALAW-CODEC-REGISTRATION]]</td>
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</tr>
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<tr>
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<td>pcm-*</td>
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<td>pcm-\*</td>
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<td>Linear PCM</td>
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<td>[Linear PCM WebCodecs
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Registration](https://www.w3.org/TR/webcodecs-pcm-codec-registration/)
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<td>**specification**</td>
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</tr>
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<tr>
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<td>av01.*</td>
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<td>av01.\*</td>
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<td>AV1</td>
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<td>[AV1 codec registration](https://www.w3.org/TR/webcodecs-av1-codec-registration/) [[WEBCODECS-AV1-CODEC-REGISTRATION]]</td>
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</tr>
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<tr>
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<td>avc1.*</td>
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<td>avc1.\*, avc3.\*</td>
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<td>AVC / H.264</td>
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<td>[AVC (H.264) WebCodecs Registration](https://www.w3.org/TR/webcodecs-avc-codec-registration/) [[WEBCODECS-AVC-CODEC-REGISTRATION]]</td>
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</tr>
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<tr>
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<td>hev1.\*, hvc1.\*</td>
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<td>HEVC / H.265</td>
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<td>[HEVC (H.265) WebCodecs Registration](https://www.w3.org/TR/webcodecs-hevc-codec-registration/) [[WEBCODECS-HEVC-CODEC-REGISTRATION]]</td>
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</tr>
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<tr>
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<td>vp8</td>
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<td>VP8</td>
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<td>[VP8 codec registration](https://www.w3.org/TR/webcodecs-vp8-codec-registration/) [[WEBCODECS-VP8-CODEC-REGISTRATION]]</td>
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</tr>
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<tr>
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<td>vp09.*</td>
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<td>vp09.\*</td>
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<td>VP9</td>
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<td>[VP9 codec registration](https://www.w3.org/TR/webcodecs-vp9-codec-registration/) [[WEBCODECS-VP9-CODEC-REGISTRATION]]</td>
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</tr>
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</table>
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Privacy and Security Considerations {#privacy-and-security-considerations}
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Privacy Considerations {#privacy-considerations}
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==========================================================================
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Please refer to the section [[WEBCODECS#privacy-considerations|Privacy
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Considerations]] in [[WEBCODECS]].
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Security Considerations {#security-considerations}
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==========================================================================
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Please refer to the [[WEBCODECS#privacy-considerations|Privacy Considerations]]
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and [[WEBCODECS#security-considerations|Security Considerations]] sections in
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[[WEBCODECS]].
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Please refer to the section [[WEBCODECS#security-considerations|Security
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Considerations]] in [[WEBCODECS]].

‎flac_codec_registration.src.html‎

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NOTE: Once the initialization has succeeded, any FLAC packet can be decoded at
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any time without error, but this might not result in the expected audio output.
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Privacy and Security Considerations {#privacy-and-security-considerations}
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Privacy Considerations {#privacy-considerations}
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==========================================================================
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Please refer to the [[WEBCODECS#privacy-considerations|Privacy Considerations]]
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and [[WEBCODECS#security-considerations|Security Considerations]] sections in
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[[WEBCODECS]].
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Please refer to the section [[WEBCODECS#privacy-considerations|Privacy
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Considerations]] in [[WEBCODECS]].
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Security Considerations {#security-considerations}
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==========================================================================
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Please refer to the section [[WEBCODECS#security-considerations|Security
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Considerations]] in [[WEBCODECS]].

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