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修复mp4点播相关的bug

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This commit is contained in:
xiongziliang 2018-11-14 14:27:06 +08:00
parent db0e58a17b
commit be81aa7fbb
2 changed files with 15 additions and 13 deletions
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22
src/MediaFile/MediaReader.cpp
View File

@ -153,8 +153,10 @@ void MediaReader::startReadMP4() {
GET_CONFIG_AND_REGISTER(uint32_t,sampleMS,Record::kSampleMS);
AsyncTaskThread::Instance().DoTaskDelay(reinterpret_cast<uint64_t>(this), sampleMS, [strongSelf](){
return strongSelf->readSample();
return strongSelf->readSample(0,false);
});
//先读sampleMS毫秒的数据用于产生MediaSouce
readSample(sampleMS, false);
_mediaMuxer->setListener(strongSelf);
}
bool MediaReader::seekTo(uint32_t ui32Stamp){
@ -166,11 +168,11 @@ bool MediaReader::close(){
return true;
}
bool MediaReader::readSample(int iTimeInc) {
bool MediaReader::readSample(int iTimeInc,bool justSeekSyncFrame) {
TimeTicker();
lock_guard<recursive_mutex> lck(_mtx);
auto bFlag0 = readVideoSample(iTimeInc);//数据没读完
auto bFlag1 = readAudioSample(iTimeInc);//数据没读完
auto bFlag0 = readVideoSample(iTimeInc,justSeekSyncFrame);//数据没读完
auto bFlag1 = readAudioSample(iTimeInc,justSeekSyncFrame);//数据没读完
auto bFlag2 = _mediaMuxer->readerCount() > 0;//读取者大于0
if((bFlag0 || bFlag1) && bFlag2){
_alive.resetTime();
@ -179,15 +181,15 @@ bool MediaReader::readSample(int iTimeInc) {
//3秒延时关闭
return _alive.elapsedTime() < 3 * 1000;
}
inline bool MediaReader::readVideoSample(int iTimeInc) {
inline bool MediaReader::readVideoSample(int iTimeInc,bool justSeekSyncFrame) {
if (_video_trId != MP4_INVALID_TRACK_ID) {
auto iNextSample = getVideoSampleId(iTimeInc);
MP4SampleId iIdx = _video_current;
for (iIdx = _video_current; iIdx < iNextSample; iIdx++) {
for (; iIdx < iNextSample; iIdx++) {
uint8_t *pBytes = _pcVideoSample.get();
uint32_t numBytes = _video_sample_max_size;
if(MP4ReadSample(_hMP4File, _video_trId, iIdx + 1, &pBytes, &numBytes,NULL,NULL,NULL,&_bSyncSample)){
if (!iTimeInc) {
if (!justSeekSyncFrame) {
uint32_t iOffset = 0;
while (iOffset < numBytes) {
uint32_t iFrameLen;
@ -213,14 +215,14 @@ inline bool MediaReader::readVideoSample(int iTimeInc) {
return false;
}
inline bool MediaReader::readAudioSample(int iTimeInc) {
inline bool MediaReader::readAudioSample(int iTimeInc,bool justSeekSyncFrame) {
if (_audio_trId != MP4_INVALID_TRACK_ID) {
auto iNextSample = getAudioSampleId(iTimeInc);
for (auto i = _audio_current; i < iNextSample; i++) {
uint32_t numBytes = _audio_sample_max_size;
uint8_t *pBytes = _adts.buffer + 7;
if(MP4ReadSample(_hMP4File, _audio_trId, i + 1, &pBytes, &numBytes)){
if (!iTimeInc) {
if (!justSeekSyncFrame) {
_adts.aac_frame_length = 7 + numBytes;
writeAdtsHeader(_adts, _adts.buffer);
writeAAC(_adts.buffer, _adts.aac_frame_length, (double) _audio_ms * i / _audio_num_samples);
@ -276,7 +278,7 @@ void MediaReader::seek(uint32_t iSeekTime,bool bReStart){
}else{
setSeekTime(iSeekTime - 5000);
//在之后的10秒查找关键帧
readVideoSample(10000);
readVideoSample(10000, true);
if (_bSyncSample) {
//找到关键帧
auto iIdr = _video_current;

6
src/MediaFile/MediaReader.h
View File

@ -56,9 +56,9 @@ private:
void startReadMP4();
inline MP4SampleId getVideoSampleId(int iTimeInc = 0);
inline MP4SampleId getAudioSampleId(int iTimeInc = 0);
bool readSample(int iTimeInc = 0);
inline bool readVideoSample(int iTimeInc = 0);
inline bool readAudioSample(int iTimeInc = 0);
bool readSample(int iTimeInc, bool justSeekSyncFrame);
inline bool readVideoSample(int iTimeInc,bool justSeekSyncFrame);
inline bool readAudioSample(int iTimeInc,bool justSeekSyncFrame);
inline void writeH264(uint8_t *pucData,int iLen,uint32_t uiStamp);
inline void writeAAC(uint8_t *pucData,int iLen,uint32_t uiStamp);
private: