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HTTP-FMP4: 修复http-fmp4直播秒开问题

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This commit is contained in:
ziyue 2021-12-16 17:46:03 +08:00
parent 4291c31493
commit 120879df0f
4 changed files with 32 additions and 31 deletions
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4
src/FMP4/FMP4MediaSource.h
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@ -64,9 +64,7 @@ public:
*/
void setInitSegment(string str) {
_init_segment = std::move(str);
if (_ring) {
regist();
}
createRing();
}
/**

2
src/FMP4/FMP4MediaSourceMuxer.h
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@ -72,7 +72,7 @@ public:
}
protected:
void onSegmentData(const string &string, uint32_t stamp, bool key_frame) override {
void onSegmentData(string string, uint32_t stamp, bool key_frame) override {
if (string.empty()) {
return;
}

55
src/Record/MP4Muxer.cpp
View File

@ -9,10 +9,12 @@
*/
#ifdef ENABLE_MP4
#include "MP4Muxer.h"
#include "Util/File.h"
#include "Extension/H264.h"
namespace mediakit{
namespace mediakit {
MP4Muxer::MP4Muxer() {}
@ -20,19 +22,19 @@ MP4Muxer::~MP4Muxer() {
closeMP4();
}
void MP4Muxer::openMP4(const string &file){
void MP4Muxer::openMP4(const string &file) {
closeMP4();
_file_name = file;
_mp4_file = std::make_shared<MP4FileDisk>();
_mp4_file->openFile(_file_name.data(), "wb+");
}
MP4FileIO::Writer MP4Muxer::createWriter(){
MP4FileIO::Writer MP4Muxer::createWriter() {
GET_CONFIG(bool, mp4FastStart, Record::kFastStart);
return _mp4_file->createWriter(mp4FastStart ? MOV_FLAG_FASTSTART : 0, false);
}
void MP4Muxer::closeMP4(){
void MP4Muxer::closeMP4() {
MP4MuxerInterface::resetTracks();
_mp4_file = nullptr;
}
@ -44,15 +46,15 @@ void MP4Muxer::resetTracks() {
/////////////////////////////////////////// MP4MuxerInterface /////////////////////////////////////////////
void MP4MuxerInterface::saveSegment(){
void MP4MuxerInterface::saveSegment() {
mp4_writer_save_segment(_mov_writter.get());
}
void MP4MuxerInterface::initSegment(){
void MP4MuxerInterface::initSegment() {
mp4_writer_init_segment(_mov_writter.get());
}
bool MP4MuxerInterface::haveVideo() const{
bool MP4MuxerInterface::haveVideo() const {
return _have_video;
}
@ -66,7 +68,7 @@ void MP4MuxerInterface::resetTracks() {
bool MP4MuxerInterface::inputFrame(const Frame::Ptr &frame) {
auto it = _codec_to_trackid.find(frame->getCodecId());
if(it == _codec_to_trackid.end()){
if (it == _codec_to_trackid.end()) {
//该Track不存在或初始化失败
return false;
}
@ -84,7 +86,6 @@ bool MP4MuxerInterface::inputFrame(const Frame::Ptr &frame) {
//mp4文件时间戳需要从0开始
auto &track_info = it->second;
int64_t dts_out, pts_out;
switch (frame->getCodecId()) {
case CodecH264:
case CodecH265: {
@ -117,7 +118,7 @@ bool MP4MuxerInterface::inputFrame(const Frame::Ptr &frame) {
return true;
}
static uint8_t getObject(CodecId codecId){
static uint8_t getObject(CodecId codecId) {
switch (codecId){
case CodecG711A : return MOV_OBJECT_G711a;
case CodecG711U : return MOV_OBJECT_G711u;
@ -129,8 +130,8 @@ static uint8_t getObject(CodecId codecId){
}
}
void MP4MuxerInterface::stampSync(){
if(_codec_to_trackid.size() < 2){
void MP4MuxerInterface::stampSync() {
if (_codec_to_trackid.size() < 2) {
return;
}
@ -143,7 +144,7 @@ void MP4MuxerInterface::stampSync(){
}
}
if(audio && video){
if (audio && video) {
//音频时间戳同步于视频，因为音频时间戳被修改后不影响播放
audio->syncTo(*video);
}
@ -202,7 +203,7 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
audio_track->getAudioSampleRate(),
audio_track->getAacCfg().data(),
audio_track->getAacCfg().size());
if(track_id < 0){
if (track_id < 0) {
WarnL << "添加AAC Track失败:" << track_id;
return false;
}
@ -220,7 +221,7 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
struct mpeg4_avc_t avc = {0};
string sps_pps = string("\x00\x00\x00\x01", 4) + h264_track->getSps() +
string("\x00\x00\x00\x01", 4) + h264_track->getPps();
h264_annexbtomp4(&avc, sps_pps.data(), (int)sps_pps.size(), NULL, 0, NULL, NULL);
h264_annexbtomp4(&avc, sps_pps.data(), (int) sps_pps.size(), NULL, 0, NULL, NULL);
uint8_t extra_data[1024];
int extra_data_size = mpeg4_avc_decoder_configuration_record_save(&avc, extra_data, sizeof(extra_data));
@ -236,7 +237,7 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
extra_data,
extra_data_size);
if(track_id < 0){
if (track_id < 0) {
WarnL << "添加H264 Track失败:" << track_id;
return false;
}
@ -256,7 +257,7 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
string vps_sps_pps = string("\x00\x00\x00\x01", 4) + h265_track->getVps() +
string("\x00\x00\x00\x01", 4) + h265_track->getSps() +
string("\x00\x00\x00\x01", 4) + h265_track->getPps();
h265_annexbtomp4(&hevc, vps_sps_pps.data(), (int)vps_sps_pps.size(), NULL, 0, NULL, NULL);
h265_annexbtomp4(&hevc, vps_sps_pps.data(), (int) vps_sps_pps.size(), NULL, 0, NULL, NULL);
uint8_t extra_data[1024];
int extra_data_size = mpeg4_hevc_decoder_configuration_record_save(&hevc, extra_data, sizeof(extra_data));
@ -271,7 +272,7 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
h265_track->getVideoHeight(),
extra_data,
extra_data_size);
if(track_id < 0){
if (track_id < 0) {
WarnL << "添加H265 Track失败:" << track_id;
return false;
}
@ -298,7 +299,7 @@ MP4FileIO::Writer MP4MuxerMemory::createWriter() {
return _memory_file->createWriter(MOV_FLAG_SEGMENT, true);
}
const string &MP4MuxerMemory::getInitSegment(){
const string &MP4MuxerMemory::getInitSegment() {
if (_init_segment.empty()) {
initSegment();
saveSegment();
@ -307,34 +308,36 @@ const string &MP4MuxerMemory::getInitSegment(){
return _init_segment;
}
void MP4MuxerMemory::resetTracks(){
void MP4MuxerMemory::resetTracks() {
MP4MuxerInterface::resetTracks();
_memory_file = std::make_shared<MP4FileMemory>();
_init_segment.clear();
}
bool MP4MuxerMemory::inputFrame(const Frame::Ptr &frame){
bool MP4MuxerMemory::inputFrame(const Frame::Ptr &frame) {
if (_init_segment.empty()) {
//尚未生成init segment
return false;
}
auto key_frame = frame->keyFrame();
auto data = _memory_file->getAndClearMemory();
if (!data.empty()) {
bool key_frame = frame->keyFrame();
//flush切片
saveSegment();
auto data = _memory_file->getAndClearMemory();
if (!data.empty()) {
//输出切片数据
onSegmentData(data, frame->dts(), _key_frame);
onSegmentData(std::move(data), frame->dts(), _key_frame);
_key_frame = false;
}
if (key_frame) {
_key_frame = true;
}
return MP4MuxerInterface::inputFrame(frame);
}
}//namespace mediakit
#endif//#ifdef ENABLE_MP4

2
src/Record/MP4Muxer.h
View File

@ -134,7 +134,7 @@ protected:
* @param stamp 切片末尾时间戳
* @param key_frame 是否有关键帧
*/
virtual void onSegmentData(const string &string, uint32_t stamp, bool key_frame) = 0;
virtual void onSegmentData(string string, uint32_t stamp, bool key_frame) = 0;
protected:
MP4FileIO::Writer createWriter() override;