* Copyright (C) 2024 Huawei Device Co., Ltd.
* 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.
*/
#include "avcodec_e2e_demo_api10.h"
#include <iostream>
#include <string>
#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <list>
#include "av_common.h"
#include "avcodec_common.h"
#include "avcodec_errors.h"
#include "native_avcodec_videodecoder.h"
#include "native_avcodec_videoencoder.h"
#include "media_description.h"
#include "native_avformat.h"
#include "native_avcodec_base.h"
using namespace OHOS;
using namespace OHOS::MediaAVCodec;
using namespace OHOS::MediaAVCodec::E2EDemo;
using namespace std;
constexpr int64_t MICRO_IN_SECOND = 1000000L;
constexpr int32_t AUDIO_BUFFER_SIZE = 1024 * 1024;
constexpr float FRAME_INTERVAL_TIMES = 1.5;
constexpr double DEFAULT_FRAME_RATE = 25.0;
typedef struct FrameInfo {
uint32_t index;
int32_t pts;
}FrameInfo;
static list<FrameInfo> frameList;
static bool FrameCompare(const FrameInfo &f1, const FrameInfo &f2)
{
return f1.pts < f2.pts;
}
static int64_t GetFileSize(const char *fileName)
{
int64_t fileSize = 0;
if (fileName != nullptr) {
struct stat fileStatus {};
if (stat(fileName, &fileStatus) == 0) {
fileSize = static_cast<int64_t>(fileStatus.st_size);
}
}
return fileSize;
}
static void OnError(OH_AVCodec *codec, int32_t errorCode, void *userData)
{
(void)codec;
(void)userData;
cout<<"error :"<<errorCode<<endl;
}
static void OnDecStreamChanged(OH_AVCodec *codec, OH_AVFormat *format, void *userData)
{
(void)codec;
(void)format;
(void)userData;
}
static void OnDecInputDataAvailable(OH_AVCodec *codec, uint32_t index, OH_AVMemory *data, void *userData)
{
AVCodecE2EDemoAPI10 *demo = static_cast<AVCodecE2EDemoAPI10*>(userData);
OH_AVCodecBufferAttr info;
OH_AVDemuxer_ReadSample(demo->demuxer, demo->videoTrackID, data, &info);
OH_VideoDecoder_PushInputData(codec, index, info);
}
static void sortFrame(OH_AVCodec *codec, uint32_t index, int32_t pts, uint32_t duration)
{
FrameInfo info = {index, pts};
frameList.emplace_back(info);
if (frameList.size() > 1) {
frameList.sort(FrameCompare);
FrameInfo first = frameList.front();
auto it = frameList.begin();
FrameInfo second = *(++it);
if (second.pts - first.pts <= (duration * FRAME_INTERVAL_TIMES)) {
OH_VideoDecoder_RenderOutputData(codec, first.index);
frameList.pop_front();
}
}
}
static void OnDecOutputDataAvailable(OH_AVCodec *codec, uint32_t index, OH_AVMemory *data,
OH_AVCodecBufferAttr *attr, void *userData)
{
AVCodecE2EDemoAPI10 *demo = static_cast<AVCodecE2EDemoAPI10*>(userData);
if (attr->flags & AVCODEC_BUFFER_FLAGS_EOS) {
frameList.sort(FrameCompare);
while (frameList.size() > 0) {
FrameInfo first = frameList.front();
OH_VideoDecoder_RenderOutputData(codec, first.index);
frameList.pop_front();
}
OH_VideoEncoder_NotifyEndOfStream(demo->enc);
return;
}
sortFrame(codec, index, attr->pts, demo->frameDuration);
}
static void OnEncStreamChanged(OH_AVCodec *codec, OH_AVFormat *format, void *userData)
{
cout<<"format changed"<<endl;
}
static void OnEncInputDataAvailable(OH_AVCodec *codec, uint32_t index, OH_AVMemory *data, void *userData)
{
(void)codec;
(void)index;
(void)data;
(void)userData;
}
static void OnEncOutputDataAvailable(OH_AVCodec *codec, uint32_t index, OH_AVMemory *data,
OH_AVCodecBufferAttr *attr, void *userData)
{
AVCodecE2EDemoAPI10 *demo = static_cast<AVCodecE2EDemoAPI10*>(userData);
if (attr->flags & AVCODEC_BUFFER_FLAGS_EOS) {
demo->isFinish.store(true);
demo->waitCond.notify_all();
return;
}
OH_AVMuxer_WriteSample(demo->muxer, demo->videoTrackID, data, *attr);
OH_VideoDecoder_FreeOutputData(codec, index);
}
AVCodecE2EDemoAPI10::AVCodecE2EDemoAPI10(const char *file)
{
fd = open(file, O_RDONLY);
outFd = open("./output.mp4", O_CREAT | O_RDWR | O_TRUNC, S_IRUSR | S_IWUSR);
int64_t size = GetFileSize(file);
inSource = OH_AVSource_CreateWithFD(fd, 0, size);
if (!inSource) {
cout << "create source failed" << endl;
}
demuxer = OH_AVDemuxer_CreateWithSource(inSource);
muxer = OH_AVMuxer_Create(outFd, AV_OUTPUT_FORMAT_MPEG_4);
if (!muxer || !demuxer) {
cout << "create muxer demuxer failed" << endl;
}
dec = OH_VideoDecoder_CreateByMime(OH_AVCODEC_MIMETYPE_VIDEO_HEVC);
enc = OH_VideoEncoder_CreateByMime(OH_AVCODEC_MIMETYPE_VIDEO_HEVC);
if (!enc || !dec) {
cout << "create codec failed" << endl;
}
OH_AVFormat *sourceFormat = OH_AVSource_GetSourceFormat(inSource);
OH_AVFormat_GetIntValue(sourceFormat, OH_MD_KEY_TRACK_COUNT, &trackCount);
for (int32_t index = 0; index < trackCount; index++) {
OH_AVDemuxer_SelectTrackByID(demuxer, index);
OH_AVFormat *trackFormat = OH_AVSource_GetTrackFormat(inSource, index);
int32_t muxTrack = 0;
OH_AVMuxer_AddTrack(muxer, &muxTrack, trackFormat);
int32_t trackType = 0;
OH_AVFormat_GetIntValue(trackFormat, OH_MD_KEY_TRACK_TYPE, &trackType);
if (trackType == MEDIA_TYPE_VID) {
int32_t rotation = 0;
double frameRate = 0.0;
OH_AVFormat_GetIntValue(trackFormat, OH_MD_KEY_ROTATION, &rotation);
OH_AVFormat_GetDoubleValue(trackFormat, OH_MD_KEY_FRAME_RATE, &frameRate);
if (frameRate <= 0) {
frameRate = DEFAULT_FRAME_RATE;
}
frameDuration = MICRO_IN_SECOND / frameRate;
OH_AVMuxer_SetRotation(muxer, rotation);
videoTrackID = index;
OH_AVFormat_SetIntValue(trackFormat, OH_MD_KEY_PIXEL_FORMAT, AV_PIXEL_FORMAT_NV12);
OH_VideoDecoder_Configure(dec, trackFormat);
OH_VideoEncoder_Configure(enc, trackFormat);
} else {
audioTrackID = index;
}
OH_AVFormat_Destroy(trackFormat);
}
OH_AVFormat_Destroy(sourceFormat);
}
AVCodecE2EDemoAPI10::~AVCodecE2EDemoAPI10()
{
if (dec) {
OH_VideoDecoder_Destroy(dec);
}
if (enc) {
OH_VideoEncoder_Destroy(enc);
}
if (muxer) {
OH_AVMuxer_Destroy(muxer);
}
if (demuxer) {
OH_AVDemuxer_Destroy(demuxer);
}
if (inSource) {
OH_AVSource_Destroy(inSource);
}
close(fd);
close(outFd);
}
void AVCodecE2EDemoAPI10::Configure()
{
OH_AVCodecAsyncCallback encCallback;
encCallback.onError = OnError;
encCallback.onStreamChanged = OnEncStreamChanged;
encCallback.onNeedInputData = OnEncInputDataAvailable;
encCallback.onNeedOutputData = OnEncOutputDataAvailable;
OH_VideoEncoder_SetCallback(enc, encCallback, this);
OH_AVCodecAsyncCallback decCallback;
decCallback.onError = OnError;
decCallback.onStreamChanged = OnDecStreamChanged;
decCallback.onNeedInputData = OnDecInputDataAvailable;
decCallback.onNeedOutputData = OnDecOutputDataAvailable;
OH_VideoDecoder_SetCallback(dec, decCallback, this);
OHNativeWindow *window = nullptr;
OH_VideoEncoder_GetSurface(enc, &window);
OH_VideoDecoder_SetSurface(dec, window);
isFinish.store(false);
}
void AVCodecE2EDemoAPI10::WriteAudioTrack()
{
OH_AVMemory *buffer = nullptr;
buffer = OH_AVMemory_Create(AUDIO_BUFFER_SIZE);
while (true) {
if (isFinish.load()) {
break;
}
OH_AVCodecBufferAttr info;
OH_AVDemuxer_ReadSample(demuxer, audioTrackID, buffer, &info);
if (info.flags & AVCODEC_BUFFER_FLAGS_EOS) {
break;
}
OH_AVMuxer_WriteSample(muxer, audioTrackID, buffer, info);
}
OH_AVMemory_Destroy(buffer);
}
void AVCodecE2EDemoAPI10::Start()
{
OH_VideoDecoder_Prepare(dec);
OH_VideoEncoder_Prepare(enc);
OH_AVMuxer_Start(muxer);
OH_VideoEncoder_Start(enc);
OH_VideoDecoder_Start(dec);
if (audioTrackID != -1) {
audioThread = make_unique<thread>(&AVCodecE2EDemoAPI10::WriteAudioTrack, this);
}
}
void AVCodecE2EDemoAPI10::WaitForEOS()
{
std::mutex waitMtx;
unique_lock<mutex> lock(waitMtx);
waitCond.wait(lock, [this]() {
return isFinish.load();
});
if (audioThread) {
audioThread->join();
}
cout << "task finish" << endl;
}
void AVCodecE2EDemoAPI10::Stop()
{
OH_VideoDecoder_Stop(dec);
OH_VideoEncoder_Stop(enc);
OH_AVMuxer_Stop(muxer);
}
