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addTrack/inputFrame接口支持返回值；新增全局添加静音音频接口

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ziyue
2021-09-27 13:12:53 +08:00
parent 1f99708548
commit e9008afca0
63 changed files with 447 additions and 357 deletions
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106
src/Common/MediaSink.cpp
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@@ -9,6 +9,7 @@
*/
#include "MediaSink.h"
#include "Extension/AAC.h"
//最多等待未初始化的Track 10秒，超时之后会忽略未初始化的Track
static size_t constexpr kMaxWaitReadyMS= 10000;
@@ -21,20 +22,20 @@ static size_t constexpr kMaxUnreadyFrame = 100;
namespace mediakit{
void MediaSink::addTrack(const Track::Ptr &track_in) {
bool MediaSink::addTrack(const Track::Ptr &track_in) {
GET_CONFIG(bool, enabel_audio, General::kEnableAudio);
if (!enabel_audio) {
//关闭音频时，加快单视频流注册速度
_max_track_size = 1;
if (track_in->getTrackType() == TrackAudio) {
//音频被全局忽略
return;
return false;
}
}
lock_guard<recursive_mutex> lck(_mtx);
if (_all_track_ready) {
WarnL << "all track is ready, add this track too late!";
return;
return false;
}
//克隆Track，只拷贝其数据，不拷贝其数据转发关系
auto track = track_in->clone();
@@ -47,18 +48,19 @@ void MediaSink::addTrack(const Track::Ptr &track_in) {
track->addDelegate(std::make_shared<FrameWriterInterfaceHelper>([this](const Frame::Ptr &frame) {
if (_all_track_ready) {
onTrackFrame(frame);
} else {
auto &frame_unread = _frame_unread[frame->getCodecId()];
if (frame_unread.size() > kMaxUnreadyFrame) {
//未就绪的的track，不能缓存太多的帧，否则可能内存溢出
frame_unread.clear();
WarnL << "cached frame of unready track(" << frame->getCodecName() << ") is too much, now cleared";
}
//还有Track未就绪，先缓存之
frame_unread.emplace_back(Frame::getCacheAbleFrame(frame));
return onTrackFrame(frame);
}
auto &frame_unread = _frame_unread[frame->getCodecId()];
if (frame_unread.size() > kMaxUnreadyFrame) {
//未就绪的的track，不能缓存太多的帧，否则可能内存溢出
frame_unread.clear();
WarnL << "cached frame of unready track(" << frame->getCodecName() << ") is too much, now cleared";
}
//还有Track未就绪，先缓存之
frame_unread.emplace_back(Frame::getCacheAbleFrame(frame));
return true;
}));
return true;
}
void MediaSink::resetTracks() {
@@ -71,14 +73,19 @@ void MediaSink::resetTracks() {
_frame_unread.clear();
}
void MediaSink::inputFrame(const Frame::Ptr &frame) {
bool MediaSink::inputFrame(const Frame::Ptr &frame) {
lock_guard<recursive_mutex> lck(_mtx);
auto it = _track_map.find(frame->getCodecId());
if (it == _track_map.end()) {
return;
return false;
}
auto ret = it->second->inputFrame(frame);
if (_mute_audio_maker && frame->getTrackType() == TrackVideo) {
//视频驱动产生静音音频
_mute_audio_maker->inputFrame(frame);
}
it->second->inputFrame(frame);
checkTrackIfReady(nullptr);
return ret;
}
void MediaSink::checkTrackIfReady_l(const Track::Ptr &track){
@@ -184,5 +191,72 @@ vector<Track::Ptr> MediaSink::getTracks(bool trackReady) const{
return ret;
}
class FrameFromStaticPtr : public FrameFromPtr {
public:
template<typename ... ARGS>
FrameFromStaticPtr(ARGS &&...args) : FrameFromPtr(std::forward<ARGS>(args)...) {};
~FrameFromStaticPtr() override = default;
bool cacheAble() const override {
return true;
}
};
static uint8_t s_mute_adts[] = {0xff, 0xf1, 0x6c, 0x40, 0x2d, 0x3f, 0xfc, 0x00, 0xe0, 0x34, 0x20, 0xad, 0xf2, 0x3f, 0xb5, 0xdd,
0x73, 0xac, 0xbd, 0xca, 0xd7, 0x7d, 0x4a, 0x13, 0x2d, 0x2e, 0xa2, 0x62, 0x02, 0x70, 0x3c, 0x1c,
0xc5, 0x63, 0x55, 0x69, 0x94, 0xb5, 0x8d, 0x70, 0xd7, 0x24, 0x6a, 0x9e, 0x2e, 0x86, 0x24, 0xea,
0x4f, 0xd4, 0xf8, 0x10, 0x53, 0xa5, 0x4a, 0xb2, 0x9a, 0xf0, 0xa1, 0x4f, 0x2f, 0x66, 0xf9, 0xd3,
0x8c, 0xa6, 0x97, 0xd5, 0x84, 0xac, 0x09, 0x25, 0x98, 0x0b, 0x1d, 0x77, 0x04, 0xb8, 0x55, 0x49,
0x85, 0x27, 0x06, 0x23, 0x58, 0xcb, 0x22, 0xc3, 0x20, 0x3a, 0x12, 0x09, 0x48, 0x24, 0x86, 0x76,
0x95, 0xe3, 0x45, 0x61, 0x43, 0x06, 0x6b, 0x4a, 0x61, 0x14, 0x24, 0xa9, 0x16, 0xe0, 0x97, 0x34,
0xb6, 0x58, 0xa4, 0x38, 0x34, 0x90, 0x19, 0x5d, 0x00, 0x19, 0x4a, 0xc2, 0x80, 0x4b, 0xdc, 0xb7,
0x00, 0x18, 0x12, 0x3d, 0xd9, 0x93, 0xee, 0x74, 0x13, 0x95, 0xad, 0x0b, 0x59, 0x51, 0x0e, 0x99,
0xdf, 0x49, 0x98, 0xde, 0xa9, 0x48, 0x4b, 0xa5, 0xfb, 0xe8, 0x79, 0xc9, 0xe2, 0xd9, 0x60, 0xa5,
0xbe, 0x74, 0xa6, 0x6b, 0x72, 0x0e, 0xe3, 0x7b, 0x28, 0xb3, 0x0e, 0x52, 0xcc, 0xf6, 0x3d, 0x39,
0xb7, 0x7e, 0xbb, 0xf0, 0xc8, 0xce, 0x5c, 0x72, 0xb2, 0x89, 0x60, 0x33, 0x7b, 0xc5, 0xda, 0x49,
0x1a, 0xda, 0x33, 0xba, 0x97, 0x9e, 0xa8, 0x1b, 0x6d, 0x5a, 0x77, 0xb6, 0xf1, 0x69, 0x5a, 0xd1,
0xbd, 0x84, 0xd5, 0x4e, 0x58, 0xa8, 0x5e, 0x8a, 0xa0, 0xc2, 0xc9, 0x22, 0xd9, 0xa5, 0x53, 0x11,
0x18, 0xc8, 0x3a, 0x39, 0xcf, 0x3f, 0x57, 0xb6, 0x45, 0x19, 0x1e, 0x8a, 0x71, 0xa4, 0x46, 0x27,
0x9e, 0xe9, 0xa4, 0x86, 0xdd, 0x14, 0xd9, 0x4d, 0xe3, 0x71, 0xe3, 0x26, 0xda, 0xaa, 0x17, 0xb4,
0xac, 0xe1, 0x09, 0xc1, 0x0d, 0x75, 0xba, 0x53, 0x0a, 0x37, 0x8b, 0xac, 0x37, 0x39, 0x41, 0x27,
0x6a, 0xf0, 0xe9, 0xb4, 0xc2, 0xac, 0xb0, 0x39, 0x73, 0x17, 0x64, 0x95, 0xf4, 0xdc, 0x33, 0xbb,
0x84, 0x94, 0x3e, 0xf8, 0x65, 0x71, 0x60, 0x7b, 0xd4, 0x5f, 0x27, 0x79, 0x95, 0x6a, 0xba, 0x76,
0xa6, 0xa5, 0x9a, 0xec, 0xae, 0x55, 0x3a, 0x27, 0x48, 0x23, 0xcf, 0x5c, 0x4d, 0xbc, 0x0b, 0x35,
0x5c, 0xa7, 0x17, 0xcf, 0x34, 0x57, 0xc9, 0x58, 0xc5, 0x20, 0x09, 0xee, 0xa5, 0xf2, 0x9c, 0x6c,
0x39, 0x1a, 0x77, 0x92, 0x9b, 0xff, 0xc6, 0xae, 0xf8, 0x36, 0xba, 0xa8, 0xaa, 0x6b, 0x1e, 0x8c,
0xc5, 0x97, 0x39, 0x6a, 0xb8, 0xa2, 0x55, 0xa8, 0xf8};
#define MUTE_ADTS_DATA s_mute_adts
#define MUTE_ADTS_DATA_LEN sizeof(s_mute_adts)
#define MUTE_ADTS_DATA_MS 130
bool MuteAudioMaker::inputFrame(const Frame::Ptr &frame) {
if (frame->getTrackType() == TrackVideo) {
auto audio_idx = frame->dts() / MUTE_ADTS_DATA_MS;
if (_audio_idx != audio_idx) {
_audio_idx = audio_idx;
auto aacFrame = std::make_shared<FrameFromStaticPtr>(CodecAAC, (char *) MUTE_ADTS_DATA, MUTE_ADTS_DATA_LEN,
_audio_idx * MUTE_ADTS_DATA_MS, 0, ADTS_HEADER_LEN);
return FrameDispatcher::inputFrame(aacFrame);
}
}
return false;
}
bool MediaSink::addMuteAudioTrack() {
if (getTrack(TrackAudio, false)) {
WarnL << "audio track already existed";
return false;
}
if (addTrack(std::make_shared<AACTrack>())) {
_mute_audio_maker = std::make_shared<MuteAudioMaker>();
_mute_audio_maker->addDelegate(std::make_shared<FrameWriterInterfaceHelper>([this](const Frame::Ptr &frame) {
return inputFrame(frame);
}));
return true;
}
return false;
}
}//namespace mediakit