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authorAndreas Huber <andih@google.com>2012-02-29 16:41:46 -0800
committerAndreas Huber <andih@google.com>2012-03-01 11:49:46 -0800
commitd8edac6cc7ce75a255c45a361843f15204659f4a (patch)
treed95e393ac5a250a1b57655f722156b3c8374d3e6 /media_codecs.xml
parent44e164b0c1ca5945b87a02b3122b74f3b8fdc8a4 (diff)
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Codec components are now dynamically configured.
Change-Id: Ife617162d1e1bb3e7102ffe1138d580a7b6f61ec
Diffstat (limited to 'media_codecs.xml')
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+<?xml version="1.0" encoding="utf-8" ?>
+<!-- Copyright (C) 2012 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 MediaCodecs (Decoders,Encoders)>
+<!ELEMENT Decoders (MediaCodec*)>
+<!ELEMENT Encoders (MediaCodec*)>
+<!ELEMENT MediaCodec (Type*,Quirk*)>
+<!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>
+ <Decoders>
+ <MediaCodec name="OMX.TI.DUCATI1.VIDEO.DECODER" >
+ <Type name="video/mp4v-es" />
+ <Type name="video/3gpp" />
+ <Type name="video/avc" />
+ <Quirk name="requires-allocate-on-input-ports" />
+ <Quirk name="requires-allocate-on-output-ports" />
+ </MediaCodec>
+
+ <MediaCodec name="OMX.google.mp3.decoder" type="audio/mpeg" />
+ <MediaCodec name="OMX.google.amrnb.decoder" type="audio/3gpp" />
+ <MediaCodec name="OMX.google.amrwb.decoder" type="audio/amr-wb" />
+ <MediaCodec name="OMX.google.aac.decoder" type="audio/mp4a-latm" />
+ <MediaCodec name="OMX.google.g711.alaw.decoder" type="audio/g711-alaw" />
+ <MediaCodec name="OMX.google.g711.mlaw.decoder" type="audio/g711-mlaw" />
+ <MediaCodec name="OMX.google.vorbis.decoder" type="audio/vorbis" />
+
+ <MediaCodec name="OMX.google.mpeg4.decoder" type="video/mp4v-es" />
+ <MediaCodec name="OMX.google.h263.decoder" type="video/3gpp" />
+ <MediaCodec name="OMX.google.h264.decoder" type="video/avc" />
+ <MediaCodec name="OMX.google.vpx.decoder" type="video/x-vnd.on2.vp8" />
+ </Decoders>
+
+ <Encoders>
+ <MediaCodec name="OMX.TI.DUCATI1.VIDEO.MPEG4E" >
+ <Type name="video/mp4v-es" />
+ <Type name="video/3gpp" />
+ <Quirk name="requires-allocate-on-input-ports" />
+ <Quirk name="requires-allocate-on-output-ports" />
+ </MediaCodec>
+
+ <MediaCodec name="OMX.TI.DUCATI1.VIDEO.H264E" type="video/avc" >
+ <Quirk name="requires-allocate-on-input-ports" />
+ <Quirk name="requires-allocate-on-output-ports" />
+ </MediaCodec>
+
+ <MediaCodec name="OMX.google.amrnb.encoder" type="audio/3gpp" />
+ <MediaCodec name="OMX.google.amrwb.encoder" type="audio/amr-wb" />
+ <MediaCodec name="OMX.google.aac.encoder" type="audio/mp4a-latm" />
+ </Encoders>
+</MediaCodecs>