You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
3.4 KiB
92 lines
3.4 KiB
<?xml version="1.0" encoding="utf-8" ?>
|
|
<!--
|
|
/*
|
|
** Copyright 2017, The Android Open Source Project.
|
|
**
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
**
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
**
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
*/
|
|
-->
|
|
|
|
<!--
|
|
<!DOCTYPE MediaCodecs [
|
|
<!ELEMENT Include EMPTY>
|
|
<!ATTLIST Include href CDATA #REQUIRED>
|
|
<!ELEMENT MediaCodecs (Decoders|Encoders|Include)*>
|
|
<!ELEMENT Decoders (MediaCodec|Include)*>
|
|
<!ELEMENT Encoders (MediaCodec|Include)*>
|
|
<!ELEMENT MediaCodec (Type|Quirk|Include)*>
|
|
<!ATTLIST MediaCodec name CDATA #REQUIRED>
|
|
<!ATTLIST MediaCodec type CDATA>
|
|
<!ELEMENT Type EMPTY>
|
|
<!ATTLIST Type name CDATA #REQUIRED>
|
|
<!ELEMENT Quirk EMPTY>
|
|
<!ATTLIST Quirk name CDATA #REQUIRED>
|
|
]>
|
|
|
|
There's a simple and a complex syntax to declare the availability of a
|
|
media codec:
|
|
|
|
A codec that properly follows the OpenMax spec and therefore doesn't have any
|
|
quirks and that only supports a single content type can be declared like so:
|
|
|
|
<MediaCodec name="OMX.foo.bar" type="something/interesting" />
|
|
|
|
If a codec has quirks OR supports multiple content types, the following syntax
|
|
can be used:
|
|
|
|
<MediaCodec name="OMX.foo.bar" >
|
|
<Type name="something/interesting" />
|
|
<Type name="something/else" />
|
|
...
|
|
<Quirk name="requires-allocate-on-input-ports" />
|
|
<Quirk name="requires-allocate-on-output-ports" />
|
|
<Quirk name="output-buffers-are-unreadable" />
|
|
</MediaCodec>
|
|
|
|
Only the three quirks included above are recognized at this point:
|
|
|
|
"requires-allocate-on-input-ports"
|
|
must be advertised if the component does not properly support specification
|
|
of input buffers using the OMX_UseBuffer(...) API but instead requires
|
|
OMX_AllocateBuffer to be used.
|
|
|
|
"requires-allocate-on-output-ports"
|
|
must be advertised if the component does not properly support specification
|
|
of output buffers using the OMX_UseBuffer(...) API but instead requires
|
|
OMX_AllocateBuffer to be used.
|
|
|
|
"output-buffers-are-unreadable"
|
|
must be advertised if the emitted output buffers of a decoder component
|
|
are not readable, i.e. use a custom format even though abusing one of
|
|
the official OMX colorspace constants.
|
|
Clients of such decoders will not be able to access the decoded data,
|
|
naturally making the component much less useful. The only use for
|
|
a component with this quirk is to render the output to the screen.
|
|
Audio decoders MUST NOT advertise this quirk.
|
|
Video decoders that advertise this quirk must be accompanied by a
|
|
corresponding color space converter for thumbnail extraction,
|
|
matching surfaceflinger support that can render the custom format to
|
|
a texture and possibly other code, so just DON'T USE THIS QUIRK.
|
|
|
|
-->
|
|
|
|
<MediaCodecs>
|
|
<Settings>
|
|
<Setting name="max-video-encoder-input-buffers" value="12" />
|
|
</Settings>
|
|
|
|
<Include href="media_codecs_google_audio.xml" />
|
|
<Include href="media_codecs_google_telephony.xml" />
|
|
<Include href="media_codecs_google_video.xml" />
|
|
</MediaCodecs>
|