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354 lines
12 KiB
354 lines
12 KiB
/*
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* Copyright 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "MediaCodecListOverrides"
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#include <utils/Log.h>
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#include "MediaCodecListOverrides.h"
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#include <cutils/properties.h>
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#include <gui/Surface.h>
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#include <mediadrm/ICrypto.h>
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#include <media/IMediaCodecList.h>
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#include <media/MediaCodecInfo.h>
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#include <media/MediaResourcePolicy.h>
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#include <media/openmax/OMX_IVCommon.h>
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#include <media/stagefright/foundation/AMessage.h>
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#include <media/stagefright/MediaCodec.h>
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#include <media/stagefright/MediaCodecList.h>
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namespace android {
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AString getProfilingVersionString() {
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char val[PROPERTY_VALUE_MAX];
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if (property_get("ro.build.display.id", val, NULL) && (strlen(val) > 0)) {
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return AStringPrintf("<!-- Profiled-with: %s -->", val);
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}
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return "<!-- Profiled-with: UNKNOWN_BUILD_ID -->";
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}
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// a limit to avoid allocating unreasonable number of codec instances in the measurement.
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// this should be in sync with the MAX_SUPPORTED_INSTANCES defined in MediaCodecInfo.java.
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static const int kMaxInstances = 32;
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// TODO: move MediaCodecInfo to C++. Until then, some temp methods to parse out info.
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static bool getMeasureSize(const sp<MediaCodecInfo::Capabilities> &caps, int32_t *width, int32_t *height) {
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AString sizeRange;
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if (!caps->getDetails()->findString("size-range", &sizeRange)) {
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return false;
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}
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AString minSize;
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AString maxSize;
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if (!splitString(sizeRange, "-", &minSize, &maxSize)) {
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return false;
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}
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AString sWidth;
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AString sHeight;
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if (!splitString(minSize, "x", &sWidth, &sHeight)) {
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if (!splitString(minSize, "*", &sWidth, &sHeight)) {
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return false;
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}
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}
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*width = strtol(sWidth.c_str(), NULL, 10);
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*height = strtol(sHeight.c_str(), NULL, 10);
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return (*width > 0) && (*height > 0);
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}
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static void getMeasureBitrate(const sp<MediaCodecInfo::Capabilities> &caps, int32_t *bitrate) {
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// Until have native MediaCodecInfo, we cannot get bitrates based on profile/levels.
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// We use 200000 as default value for our measurement.
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*bitrate = 200000;
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AString bitrateRange;
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if (!caps->getDetails()->findString("bitrate-range", &bitrateRange)) {
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return;
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}
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AString minBitrate;
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AString maxBitrate;
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if (!splitString(bitrateRange, "-", &minBitrate, &maxBitrate)) {
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return;
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}
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*bitrate = strtol(minBitrate.c_str(), NULL, 10);
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}
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static sp<AMessage> getMeasureFormat(
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bool isEncoder, const AString &mime, const sp<MediaCodecInfo::Capabilities> &caps) {
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sp<AMessage> format = new AMessage();
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format->setString("mime", mime);
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if (isEncoder) {
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int32_t bitrate = 0;
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getMeasureBitrate(caps, &bitrate);
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format->setInt32("bitrate", bitrate);
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format->setInt32("encoder", 1);
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}
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if (mime.startsWith("video/")) {
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int32_t width = 0;
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int32_t height = 0;
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if (!getMeasureSize(caps, &width, &height)) {
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return NULL;
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}
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format->setInt32("width", width);
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format->setInt32("height", height);
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Vector<uint32_t> colorFormats;
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caps->getSupportedColorFormats(&colorFormats);
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if (colorFormats.size() == 0) {
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return NULL;
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}
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format->setInt32("color-format", colorFormats[0]);
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format->setFloat("frame-rate", 10.0);
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format->setInt32("i-frame-interval", 10);
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} else {
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// TODO: profile hw audio
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return NULL;
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}
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return format;
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}
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static size_t doProfileCodecs(
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bool isEncoder, const AString &name, const AString &mime, const sp<MediaCodecInfo::Capabilities> &caps) {
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sp<AMessage> format = getMeasureFormat(isEncoder, mime, caps);
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if (format == NULL) {
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return 0;
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}
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ALOGV("doProfileCodecs %s %s %s %s",
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name.c_str(), mime.c_str(), isEncoder ? "encoder" : "decoder",
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format->debugString().c_str());
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status_t err = OK;
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Vector<sp<MediaCodec>> codecs;
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while (err == OK && codecs.size() < kMaxInstances) {
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sp<ALooper> looper = new ALooper;
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looper->setName("MediaCodec_looper");
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ALOGV("doProfileCodecs for codec #%zu", codecs.size());
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ALOGV("doProfileCodecs start looper");
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looper->start(
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false /* runOnCallingThread */, false /* canCallJava */, ANDROID_PRIORITY_AUDIO);
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ALOGV("doProfileCodecs CreateByComponentName");
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sp<MediaCodec> codec = MediaCodec::CreateByComponentName(looper, name.c_str(), &err);
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if (err != OK) {
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ALOGV("Failed to create codec: %s", name.c_str());
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break;
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}
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const sp<Surface> nativeWindow;
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const sp<ICrypto> crypto;
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uint32_t flags = isEncoder ? MediaCodec::CONFIGURE_FLAG_ENCODE : 0;
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ALOGV("doProfileCodecs configure");
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err = codec->configure(format, nativeWindow, crypto, flags);
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if (err != OK) {
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ALOGV("Failed to configure codec: %s with mime: %s", name.c_str(), mime.c_str());
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codec->release();
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break;
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}
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ALOGV("doProfileCodecs start");
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err = codec->start();
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if (err != OK) {
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ALOGV("Failed to start codec: %s with mime: %s", name.c_str(), mime.c_str());
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codec->release();
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break;
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}
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codecs.push_back(codec);
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}
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for (size_t i = 0; i < codecs.size(); ++i) {
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ALOGV("doProfileCodecs release %s", name.c_str());
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err = codecs[i]->release();
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if (err != OK) {
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ALOGE("Failed to release codec: %s with mime: %s", name.c_str(), mime.c_str());
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}
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}
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return codecs.size();
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}
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bool splitString(const AString &s, const AString &delimiter, AString *s1, AString *s2) {
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ssize_t pos = s.find(delimiter.c_str());
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if (pos < 0) {
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return false;
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}
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*s1 = AString(s, 0, pos);
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*s2 = AString(s, pos + 1, s.size() - pos - 1);
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return true;
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}
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bool splitString(
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const AString &s, const AString &delimiter, AString *s1, AString *s2, AString *s3) {
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AString temp;
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if (!splitString(s, delimiter, s1, &temp)) {
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return false;
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}
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if (!splitString(temp, delimiter, s2, s3)) {
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return false;
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}
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return true;
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}
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void profileCodecs(const std::vector<sp<MediaCodecInfo>> &infos,
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const char* profilingResults) {
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CodecSettings global_results;
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KeyedVector<AString, CodecSettings> encoder_results;
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KeyedVector<AString, CodecSettings> decoder_results;
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profileCodecs(infos, &global_results, &encoder_results, &decoder_results);
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exportResultsToXML(profilingResults, global_results, encoder_results, decoder_results);
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}
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void profileCodecs(
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const std::vector<sp<MediaCodecInfo>> &infos,
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CodecSettings *global_results,
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KeyedVector<AString, CodecSettings> *encoder_results,
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KeyedVector<AString, CodecSettings> *decoder_results,
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bool forceToMeasure) {
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KeyedVector<AString, sp<MediaCodecInfo::Capabilities>> codecsNeedMeasure;
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AString supportMultipleSecureCodecs = "true";
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for (const auto& info : infos) {
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AString name = info->getCodecName();
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if (name.startsWith("OMX.google.") || name.startsWith("c2.android.") ||
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// TODO: reenable below codecs once fixed
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name == "OMX.Intel.VideoDecoder.VP9.hybrid") {
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continue;
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}
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Vector<AString> mediaTypes;
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info->getSupportedMediaTypes(&mediaTypes);
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for (size_t i = 0; i < mediaTypes.size(); ++i) {
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const sp<MediaCodecInfo::Capabilities> &caps =
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info->getCapabilitiesFor(mediaTypes[i].c_str());
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if (!forceToMeasure &&
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(caps->getDetails()->contains("max-supported-instances") ||
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caps->getDetails()->contains("max-concurrent-instances"))) {
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continue;
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}
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size_t max = doProfileCodecs(info->isEncoder(), name, mediaTypes[i], caps);
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if (max > 0) {
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CodecSettings settings;
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char maxStr[32];
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sprintf(maxStr, "%zu", max);
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settings.add("max-supported-instances", maxStr);
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AString key = name;
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key.append(" ");
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key.append(mediaTypes[i]);
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if (info->isEncoder()) {
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encoder_results->add(key, settings);
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} else {
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decoder_results->add(key, settings);
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}
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if (name.endsWith(".secure")) {
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if (max <= 1) {
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supportMultipleSecureCodecs = "false";
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}
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}
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}
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}
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}
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global_results->add(
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MediaResourcePolicy::kPolicySupportsMultipleSecureCodecs(),
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supportMultipleSecureCodecs);
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}
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static AString globalResultsToXml(const CodecSettings &results) {
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AString ret;
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for (size_t i = 0; i < results.size(); ++i) {
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AString setting = AStringPrintf(
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" <Setting name=\"%s\" value=\"%s\" />\n",
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results.keyAt(i).c_str(),
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results.valueAt(i).c_str());
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ret.append(setting);
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}
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return ret;
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}
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static AString codecResultsToXml(const KeyedVector<AString, CodecSettings> &results) {
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AString ret;
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for (size_t i = 0; i < results.size(); ++i) {
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AString name;
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AString mime;
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if (!splitString(results.keyAt(i), " ", &name, &mime)) {
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continue;
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}
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AString codec =
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AStringPrintf(" <MediaCodec name=\"%s\" type=\"%s\" update=\"true\" >\n",
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name.c_str(),
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mime.c_str());
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ret.append(codec);
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const CodecSettings &settings = results.valueAt(i);
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for (size_t i = 0; i < settings.size(); ++i) {
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// WARNING: we assume all the settings are "Limit". Currently we have only one type
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// of setting in this case, which is "max-supported-instances".
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AString setting = AStringPrintf(
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" <Limit name=\"%s\" value=\"%s\" />\n",
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settings.keyAt(i).c_str(),
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settings.valueAt(i).c_str());
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ret.append(setting);
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}
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ret.append(" </MediaCodec>\n");
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}
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return ret;
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}
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void exportResultsToXML(
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const char *fileName,
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const CodecSettings &global_results,
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const KeyedVector<AString, CodecSettings> &encoder_results,
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const KeyedVector<AString, CodecSettings> &decoder_results) {
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if (global_results.size() == 0 && encoder_results.size() == 0 && decoder_results.size() == 0) {
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return;
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}
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AString overrides;
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overrides.append(getProfilingVersionString());
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overrides.append("\n");
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overrides.append("<MediaCodecs>\n");
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if (global_results.size() > 0) {
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overrides.append(" <Settings>\n");
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overrides.append(globalResultsToXml(global_results));
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overrides.append(" </Settings>\n");
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}
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if (encoder_results.size() > 0) {
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overrides.append(" <Encoders>\n");
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overrides.append(codecResultsToXml(encoder_results));
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overrides.append(" </Encoders>\n");
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}
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if (decoder_results.size() > 0) {
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overrides.append(" <Decoders>\n");
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overrides.append(codecResultsToXml(decoder_results));
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overrides.append(" </Decoders>\n");
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}
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overrides.append("</MediaCodecs>\n");
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FILE *f = fopen(fileName, "wb");
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if (f == NULL) {
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ALOGE("Failed to open %s for writing.", fileName);
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return;
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}
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if (fwrite(overrides.c_str(), 1, overrides.size(), f) != overrides.size()) {
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ALOGE("Failed to write to %s.", fileName);
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}
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fclose(f);
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}
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} // namespace android
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