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/*
* Copyright (C) 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.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "OmxInfoBuilder"
#ifdef __LP64__
#define OMX_ANDROID_COMPILE_AS_32BIT_ON_64BIT_PLATFORMS
#endif
#include <android-base/properties.h>
#include <utils/Log.h>
#include <media/stagefright/foundation/MediaDefs.h>
#include <media/stagefright/OmxInfoBuilder.h>
#include <media/stagefright/ACodec.h>
#include <android/hardware/media/omx/1.0/IOmxStore.h>
#include <android/hardware/media/omx/1.0/IOmx.h>
#include <android/hardware/media/omx/1.0/IOmxNode.h>
#include <media/stagefright/omx/OMXUtils.h>
#include <media/IOMX.h>
#include <media/omx/1.0/WOmx.h>
#include <media/stagefright/omx/1.0/OmxStore.h>
#include <media/openmax/OMX_Index.h>
#include <media/openmax/OMX_IndexExt.h>
#include <media/openmax/OMX_Audio.h>
#include <media/openmax/OMX_AudioExt.h>
#include <media/openmax/OMX_Video.h>
#include <media/openmax/OMX_VideoExt.h>
namespace android {
using ::android::hardware::hidl_string;
using ::android::hardware::hidl_vec;
using namespace ::android::hardware::media::omx::V1_0;
namespace /* unnamed */ {
bool hasPrefix(const hidl_string& s, const char* prefix) {
return strncasecmp(s.c_str(), prefix, strlen(prefix)) == 0;
}
status_t queryCapabilities(
const IOmxStore::NodeInfo& node, const char* mediaType, bool isEncoder,
MediaCodecInfo::CapabilitiesWriter* caps) {
sp<ACodec> codec = new ACodec();
for (const auto& attribute : node.attributes) {
// All features have an int32 value except
// "feature-bitrate-modes", which has a string value.
if (hasPrefix(attribute.key, "feature-") &&
!hasPrefix(attribute.key, "feature-bitrate-modes")) {
// If this attribute.key is a feature that is not bitrate modes,
// add an int32 value.
caps->addDetail(
attribute.key.c_str(),
hasPrefix(attribute.value, "1") ? 1 : 0);
} else {
// Non-feature attributes
caps->addDetail(
attribute.key.c_str(), attribute.value.c_str());
}
}
// query capabilities may remove capabilities that are not actually supported by the codec
status_t err = codec->queryCapabilities(
node.owner.c_str(), node.name.c_str(), mediaType, isEncoder, caps);
if (err != OK) {
return err;
}
return OK;
}
} // unnamed namespace
OmxInfoBuilder::OmxInfoBuilder(bool allowSurfaceEncoders)
: mAllowSurfaceEncoders(allowSurfaceEncoders) {
}
status_t OmxInfoBuilder::buildMediaCodecList(MediaCodecListWriter* writer) {
// Obtain IOmxStore
sp<IOmxStore> omxStore = IOmxStore::getService();
if (omxStore == nullptr) {
ALOGE("Cannot find an IOmxStore service.");
return NO_INIT;
}
// List service attributes (global settings)
Status status;
hidl_vec<IOmxStore::RoleInfo> roles;
auto transStatus = omxStore->listRoles(
[&roles] (
const hidl_vec<IOmxStore::RoleInfo>& inRoleList) {
roles = inRoleList;
});
if (!transStatus.isOk()) {
ALOGE("Fail to obtain codec roles from IOmxStore.");
return NO_INIT;
}
hidl_vec<IOmxStore::ServiceAttribute> serviceAttributes;
transStatus = omxStore->listServiceAttributes(
[&status, &serviceAttributes] (
Status inStatus,
const hidl_vec<IOmxStore::ServiceAttribute>& inAttributes) {
status = inStatus;
serviceAttributes = inAttributes;
});
if (!transStatus.isOk()) {
ALOGE("Fail to obtain global settings from IOmxStore.");
return NO_INIT;
}
if (status != Status::OK) {
ALOGE("IOmxStore reports parsing error.");
return NO_INIT;
}
for (const auto& p : serviceAttributes) {
writer->addGlobalSetting(
p.key.c_str(), p.value.c_str());
}
// Convert roles to lists of codecs
// codec name -> index into swCodecs/hwCodecs
std::map<hidl_string, std::unique_ptr<MediaCodecInfoWriter>> codecName2Info;
uint32_t defaultRank =
::android::base::GetUintProperty("debug.stagefright.omx_default_rank", 0x100u);
uint32_t defaultSwAudioRank =
::android::base::GetUintProperty("debug.stagefright.omx_default_rank.sw-audio", 0x10u);
uint32_t defaultSwOtherRank =
::android::base::GetUintProperty("debug.stagefright.omx_default_rank.sw-other", 0x210u);
for (const IOmxStore::RoleInfo& role : roles) {
const hidl_string& typeName = role.type;
bool isEncoder = role.isEncoder;
bool isAudio = hasPrefix(role.type, "audio/");
bool isVideoOrImage = hasPrefix(role.type, "video/") || hasPrefix(role.type, "image/");
for (const IOmxStore::NodeInfo &node : role.nodes) {
const hidl_string& nodeName = node.name;
// currently image and video encoders use surface input
if (!mAllowSurfaceEncoders && isVideoOrImage && isEncoder) {
ALOGD("disabling %s for media type %s because we are not using OMX input surface",
nodeName.c_str(), role.type.c_str());
continue;
}
bool isSoftware = hasPrefix(nodeName, "OMX.google");
uint32_t rank = isSoftware
? (isAudio ? defaultSwAudioRank : defaultSwOtherRank)
: defaultRank;
// get rank from IOmxStore via attribute
for (const IOmxStore::Attribute& attribute : node.attributes) {
if (attribute.key == "rank") {
uint32_t oldRank = rank;
char dummy;
if (sscanf(attribute.value.c_str(), "%u%c", &rank, &dummy) != 1) {
rank = oldRank;
}
break;
}
}
MediaCodecInfoWriter* info;
auto c2i = codecName2Info.find(nodeName);
if (c2i == codecName2Info.end()) {
// Create a new MediaCodecInfo for a new node.
c2i = codecName2Info.insert(std::make_pair(
nodeName, writer->addMediaCodecInfo())).first;
info = c2i->second.get();
info->setName(nodeName.c_str());
info->setOwner(node.owner.c_str());
info->setRank(rank);
typename std::underlying_type<MediaCodecInfo::Attributes>::type attrs = 0;
// all OMX codecs are vendor codecs (in the vendor partition), but
// treat OMX.google codecs as non-hardware-accelerated and non-vendor
if (!isSoftware) {
attrs |= MediaCodecInfo::kFlagIsVendor;
if (!std::count_if(
node.attributes.begin(), node.attributes.end(),
[](const IOmxStore::Attribute &i) -> bool {
return i.key == "attribute::software-codec";
})) {
attrs |= MediaCodecInfo::kFlagIsHardwareAccelerated;
}
}
if (isEncoder) {
attrs |= MediaCodecInfo::kFlagIsEncoder;
}
info->setAttributes(attrs);
} else {
// The node has been seen before. Simply retrieve the
// existing MediaCodecInfoWriter.
info = c2i->second.get();
}
std::unique_ptr<MediaCodecInfo::CapabilitiesWriter> caps =
info->addMediaType(typeName.c_str());
if (queryCapabilities(
node, typeName.c_str(), isEncoder, caps.get()) != OK) {
ALOGW("Fail to add media type %s to codec %s",
typeName.c_str(), nodeName.c_str());
info->removeMediaType(typeName.c_str());
}
}
}
return OK;
}
} // namespace android
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