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133 lines
4.3 KiB
133 lines
4.3 KiB
// Copyright (C) 2020 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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#include "host-common/MediaH264DecoderVideoToolBoxProxy.h"
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#include <cstdint>
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#include <string>
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#include <vector>
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#include <stdio.h>
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#include <string.h>
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#include <stddef.h>
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#define MEDIA_H264_DEBUG 0
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#if MEDIA_H264_DEBUG
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#define H264_DPRINT(fmt,...) fprintf(stderr, "h264-videotoolbox-proxy-dec: %s:%d " fmt "\n", __func__, __LINE__, ##__VA_ARGS__);
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#else
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#define H264_DPRINT(fmt,...)
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#endif
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namespace android {
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namespace emulation {
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using InitContextParam = H264PingInfoParser::InitContextParam;
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using DecodeFrameParam = H264PingInfoParser::DecodeFrameParam;
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using ResetParam = H264PingInfoParser::ResetParam;
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using GetImageParam = H264PingInfoParser::GetImageParam;
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MediaH264DecoderVideoToolBoxProxy::MediaH264DecoderVideoToolBoxProxy(
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uint64_t id,
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H264PingInfoParser parser)
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: mId(id),
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mParser(parser),
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mFfmpegDecoder(id, parser),
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mVideoToolBoxDecoder(id, parser) {
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mCurrentDecoder = &mVideoToolBoxDecoder;
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}
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MediaH264DecoderPlugin* MediaH264DecoderVideoToolBoxProxy::clone() {
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return new MediaH264DecoderVideoToolBoxProxy(mId, mParser);
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}
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MediaH264DecoderVideoToolBoxProxy::~MediaH264DecoderVideoToolBoxProxy() {
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mCurrentDecoder->destroyH264Context();
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mCurrentDecoder = nullptr;
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}
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void MediaH264DecoderVideoToolBoxProxy::initH264Context(void* ptr) {
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mVideoToolBoxDecoder.initH264Context(ptr);
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mFfmpegDecoder.initH264Context(ptr);
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}
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void MediaH264DecoderVideoToolBoxProxy::reset(void* ptr) {
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mCurrentDecoder->reset(ptr);
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}
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std::vector<uint8_t> MediaH264DecoderVideoToolBoxProxy::prefixNaluHeader(std::vector<uint8_t> data) {
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std::vector<uint8_t> result {0x00, 0x00, 0x00,0x01};
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result.insert(result.end(), data.begin(), data.end());
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return result;
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}
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void MediaH264DecoderVideoToolBoxProxy::decodeFrame(void* ptr) {
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if (mIsVideoToolBoxDecoderInGoodState) {
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mVideoToolBoxDecoder.decodeFrame(ptr);
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if (mVideoToolBoxDecoder.getState() == DecoderState::BAD_STATE) {
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mSPS = prefixNaluHeader(mVideoToolBoxDecoder.getSPS());
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mPPS = prefixNaluHeader(mVideoToolBoxDecoder.getPPS());
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// right now, the only place that videotoolbox can fail is when it gets SPS and PPS, and
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// failed to create decoding session
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mVideoToolBoxDecoder.destroyH264Context();
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mIsVideoToolBoxDecoderInGoodState = false;
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mFfmpegDecoder.decodeFrameDirect(ptr, &(mSPS[0]), mSPS.size(), 0);
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mFfmpegDecoder.decodeFrameDirect(ptr, &(mPPS[0]), mPPS.size(), 0);
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mCurrentDecoder = &mFfmpegDecoder;
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}
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} else {
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mFfmpegDecoder.decodeFrame(ptr);
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}
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}
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void MediaH264DecoderVideoToolBoxProxy::flush(void* ptr) {
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mCurrentDecoder->flush(ptr);
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}
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void MediaH264DecoderVideoToolBoxProxy::getImage(void* ptr) {
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mCurrentDecoder->getImage(ptr);
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}
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void MediaH264DecoderVideoToolBoxProxy::destroyH264Context() {
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mCurrentDecoder->destroyH264Context();
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}
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void MediaH264DecoderVideoToolBoxProxy::save(base::Stream* stream) const {
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H264_DPRINT("saving ...");
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stream->putBe32(mParser.version());
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const int useHardwareDecoder = mIsVideoToolBoxDecoderInGoodState ? 1 : 0;
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stream->putBe32(useHardwareDecoder);
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mFfmpegDecoder.save(stream);
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mVideoToolBoxDecoder.save(stream);
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}
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bool MediaH264DecoderVideoToolBoxProxy::load(base::Stream* stream) {
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H264_DPRINT("loading ...");
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uint32_t version = stream->getBe32();
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mParser = H264PingInfoParser{version};
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const int useHardwareDecoder = stream->getBe32();
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mFfmpegDecoder.load(stream);
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mVideoToolBoxDecoder.load(stream);
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if (useHardwareDecoder) {
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mCurrentDecoder = &mVideoToolBoxDecoder;
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} else {
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mCurrentDecoder = &mFfmpegDecoder;
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}
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return true;
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}
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} // namespace emulation
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} // namespace android
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