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Les Miserables
9 décembre 2019, par
Mis à jour : Décembre 2019
Langue : français
Type : Textuel
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VideoHandle
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Mis à jour : Novembre 2019
Langue : français
Type : Video
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Somos millones 1
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Mis à jour : Juin 2015
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Pourquoi Obama lit il mes mails ?
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Mis à jour : Octobre 2013
Langue : français
Type : Image
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Sur d’autres sites (3538)
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Cannot concatenate videos ffmpeg [on hold]
1er mai 2014, par Paul PrescodI have a bitmap that I would like to concatenate to the front of many videos as a sort of title screen or disclaimer screen.
I try to turn it into a video with the same attributes as the rest of the video. So first I introspect the video :
ffmpeg version 2.2.1 Copyright (c) 2000-2014 the FFmpeg developers
built on Apr 11 2014 22:50:38 with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.2.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
libavutil 52. 66.100 / 52. 66.100
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 33.100 / 55. 33.100
libavdevice 55. 10.100 / 55. 10.100
libavfilter 4. 2.100 / 4. 2.100
libavresample 1. 2. 0 / 1. 2. 0
libswscale 2. 5.102 / 2. 5.102
libswresample 0. 18.100 / 0. 18.100
libpostproc 52. 3.100 / 52. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'EO1.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 1970-01-01 00:00:00
encoder : Lavf52.78.3
Duration: 00:00:17.77, start: 0.000000, bitrate: 582 kb/s
Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 584x328 [SAR 1:1 DAR 73:41], 512 kb/s, 23.98 fps, 23.98 tbr, 1199 tbn, 47.96 tbc (default)
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 64 kb/s (default)
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : SoundHandlerThen I try and create a similar file :
/usr/local/Cellar/ffmpeg/2.2.1/bin/ffmpeg -y -loop 1 -i Disclaimer.png -c:v libx264 -r 23.98 -t 5 -pix_fmt yuv420p -profile:v main disclaimer.mp4
It seems to work okay. The video plays I would expect it to. The attributes turn out very similar. Here is a diff :
< Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'disclaimer.mp4':
---
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'EO1.mp4':
18,20c18,21
< encoder : Lavf55.33.100
< Duration: 00:00:05.01, start: 0.000000, bitrate: 21 kb/s
< Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 584x328 [SAR 1:1 DAR 73:41], 17 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc (default)
---
> creation_time : 1970-01-01 00:00:00
> encoder : Lavf52.78.3
> Duration: 00:00:17.77, start: 0.000000, bitrate: 582 kb/s
> Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 584x328 [SAR 1:1 DAR 73:41], 512 kb/s, 23.98 fps, 23.98 tbr, 1199 tbn, 47.96 tbc (default)
21a23
22a25,28
> Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 64 kb/s (default)
> Metadata:
> handler_name : SoundHandlerBut when I try to concatenate, I get errors.
> $ cat temporary.txt
file disclaimer.mp4
file EO1.mp4/usr/local/Cellar/ffmpeg/2.2.1/bin/ffmpeg -y -f concat -i temporary.txt -c copy output.mp4
[concat @ 0x7fd880806600] Estimating duration from bitrate, this may be inaccurate
Input #0, concat, from 'temporary.txt':
Duration: 00:00:00.02, start: 0.000000, bitrate: 17 kb/s
Stream #0:0: Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 584x328 [SAR 1:1 DAR 73:41], 17 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc
Output #0, mp4, to 'output.mp4':
Metadata:
encoder : Lavf55.33.100
Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 584x328 [SAR 1:1 DAR 73:41], q=2-31, 17 kb/s, 23.98 fps, 19184 tbn, 19184 tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[mp4 @ 0x7fd880829a00] Non-monotonous DTS in output stream 0:0; previous: 93600, current: 5951; changing to 93601. This may result in incorrect timestamps in the output file.
[concat @ 0x7fd880806600] Invalid stream index 1
[mp4 @ 0x7fd880829a00] Non-monotonous DTS in output stream 0:0; previous: 93601, current: 6001; changing to 93602. This may result in incorrect timestamps in the output file.
[concat @ 0x7fd880806600] Invalid stream index 1
[mp4 @ 0x7fd880829a00] Non-monotonous DTS in output stream 0:0; previous: 93602, current: 6051; changing to 93603. This may result in incorrect timestamps in the output file....
frame= 546 fps=0.0 q=-1.0 Lsize= 1127kB time=00:00:04.90 bitrate=1882.9kbits/s
video:1123kB audio:0kB subtitle:0 data:0 global headers:0kB muxing overhead 0.349865%The output looks like it only has my disclaimer file in it, not the rest of the video.
I’m also confused why it feels like it needs to "estimate" anything. It knows the input FPS and input durations. I’m not sure if this is the problem or not. Maybe its just a bug.
-
Capture from multiple streams concurrently, best way to do it and how to reduce CPU usage
19 juin 2019, par DRONE_6969I am currently in the process of writing an application that will capture a lot of RTSP streams(in my case its 12) and display it on the QT widget. The problem arouses when I am going beyond around 6-7 streams, the CPU usage spikes and there is visible stutter.
The reason why I think that it is not QT draw function is because I have done some checking to measure how much time it takes to draw an incoming image from camera and just sample images I had, it is always a lot less than 33 milliseconds(even if there are 12 widgets being updated).
I also just ran opencv capture method without drawing and got pretty much the same CPU consumption as if I was drawing the frames (lost like 10% CPU at most and GPU usage went to zero).
IMPORTANT : I am using RTSP stream which is a h264 stream.
IF IT MATTERS MY SPECS :
Intel Core i7-6700 @ 3.40GHZ(8 CPUS)
Memory : 16gb
GPU : Intel HD Graphics 530(Also I ran my code on a computer with dedicated Graphics card, it did eliminate some stutter but CPU usage is still pretty high)
I am currently using OPENCV 4.1.0 with GSTREAMER enabled and built, I also have the OPENCV-WORLD version, there is no difference in performance.
I have created a special class called Camera that holds its frame size constraints and various control functions as well stream function. The stream function is being ran on a separate thread, whenever stream() function is done with current frame it sends ready Mat via onNewFrame event I created which converts to QPixmap and updates widget’s lastImage variable. This way I can update image in a more thread safe way.
I have tried to manipulate those VideoCapture.set() values, but it didn’t really help.
This is my stream function (Ignore the bool return, it doesn’t do anything it is a remnant from couple of minutes ago when I was trying to use std::async) :
bool Camera::stream() {
/* This function is meant to run on a separate thread and fill up the buffer independantly of
main stream thread */
//cv::setNumThreads(100);
/* Rules for these slightly changed! */
Mat pre; // Grab initial undoctored frame
//pre = Mat::zeros(size, CV_8UC1);
Mat frame; // Final modified frame
frame = Mat::zeros(size, CV_8UC1);
if (!pre.isContinuous()) pre = pre.clone();
ipCam.open(streamUrl, CAP_FFMPEG);
while (ipCam.isOpened() && capture) {
// If camera is opened wel need to capture and process the frame
try {
auto start = std::chrono::system_clock::now();
ipCam >> pre;
if (pre.empty()) {
/* Check for blank frame, return error if there is a blank frame*/
cerr << id << ": ERROR! blank frame grabbed\n";
for (FrameListener* i : clients) {
i->onNotification(1); // Notify clients about this shit
}
break;
}
else {
// Only continue if frame not empty
if (pre.cols != size.width && pre.rows != size.height) {
resize(pre, frame, size);
pre.release();
}
else {
frame = pre;
}
dPacket* pack = new dPacket{id,&frame};
for (auto i : clients) {
i->onPNewFrame(pack);
}
frame.release();
delete pack;
}
}
catch (int e) {
cout << endl << "-----Exception during capture process! CODE " << e << endl;
}
// End camera manipulations
}
cout << "Camera timed out, or connection is closed..." << endl;
if (tryResetConnection) {
cout << "Reconnection flag is set, retrying after 3 seconds..." << endl;
for (FrameListener* i : clients) {
i->onNotification(-1); // Notify clients about this shit
}
this_thread::sleep_for(chrono::milliseconds(3000));
stream();
}
return true;
}This is my onPNewFrame function. The conversion is still being done on camera’s thread because it was called within stream() and therefore is within that scope(and I also checked) :
void GLWidget::onPNewFrame(dPacket* inPack) {
lastFlag = 0;
if (bufferEnabled) {
buffer.push(QPixmap::fromImage(toQImageFromPMat(inPack->frame)));
}
else {
if (playing) {
/* Only process if this widget is playing */
frameProcessing = true;
lastImage.convertFromImage(toQImageFromPMat(inPack->frame));
frameProcessing = false;
}
}
if (lastFlag != -1 && !lastImage.isNull()) {
connecting = false;
}
else {
connecting = true;
}
}This is my Mat to QImage :
QImage GLWidget::toQImageFromPMat(cv::Mat* mat) {
return QImage(mat->data, mat->cols, mat->rows, QImage::Format_RGB888).rgbSwapped();NOTE : not converting does not result in CPU boost (at least not a significant one).
Minimal verifiable example
This program is large. I am going to paste GLWidget.cpp and GLWidget.h as well as Camera.h and Camera.cpp. You can put GLWidget into anything just as long as you spawn more than 6 of it. Camera relies on the CamUtils, but it is possible to just paste url in videocapture
I also supplied CamUtils, just in case
Camera.h :
#pragma once
#include <iostream>
#include <vector>
#include <fstream>
#include <map>
#include <string>
#include <sstream>
#include <algorithm>
#include "FrameListener.h"
#include
#include <thread>
#include "CamUtils.h"
#include <ctime>
#include "dPacket.h"
using namespace std;
using namespace cv;
class Camera
{
/*
CLEANED UP!
Camera now is only responsible for streaming and echoing captured frames.
Frames are now wrapped into dPacket struct.
*/
private:
string id;
vector clients;
VideoCapture ipCam;
string streamUrl;
Size size;
bool tryResetConnection = false;
//TODO: Remove these as they are not going to be used going on:
bool isPlaying = true;
bool capture = true;
//SECRET FEATURES:
bool detect = false;
public:
Camera(string url, int width = 480, int height = 240, bool detect_=false);
bool stream();
void setReconnectable(bool newReconStatus);
void addListener(FrameListener* client);
vector<bool> getState(); // Returns current state: vector[0] stream state; vector[1] stream state; TODO: Remove this as this is no longer should control behaviour
void killStream();
bool getReconnectable();
};
</bool></ctime></thread></algorithm></sstream></string></map></fstream></vector></iostream>Camera.cpp
#include "Camera.h"
Camera::Camera(string url, int width, int height, bool detect_) // Default 240p
{
streamUrl = url; // Prepare url
size = Size(width, height);
detect = detect_;
}
void Camera::addListener(FrameListener* client) {
clients.push_back(client);
}
/*
TEST CAMERAS(Paste into cameras.dViewer):
{"id":"96a73796-c129-46fc-9c01-40acd8ed7122","ip":"176.57.73.231","password":"null","username":"null"},
{"id":"96a73796-c129-46fc-9c01-40acd8ed7122","ip":"176.57.73.231","password":"null","username":"null"},
{"id":"96a73796-c129-46fc-9c01-40acd8ed7144","ip":"172.20.101.13","password":"admin","username":"root"}
{"id":"96a73796-c129-46fc-9c01-40acd8ed7144","ip":"172.20.101.13","password":"admin","username":"root"}
*/
bool Camera::stream() {
/* This function is meant to run on a separate thread and fill up the buffer independantly of
main stream thread */
//cv::setNumThreads(100);
/* Rules for these slightly changed! */
Mat pre; // Grab initial undoctored frame
//pre = Mat::zeros(size, CV_8UC1);
Mat frame; // Final modified frame
frame = Mat::zeros(size, CV_8UC1);
if (!pre.isContinuous()) pre = pre.clone();
ipCam.open(streamUrl, CAP_FFMPEG);
while (ipCam.isOpened() && capture) {
// If camera is opened wel need to capture and process the frame
try {
auto start = std::chrono::system_clock::now();
ipCam >> pre;
if (pre.empty()) {
/* Check for blank frame, return error if there is a blank frame*/
cerr << id << ": ERROR! blank frame grabbed\n";
for (FrameListener* i : clients) {
i->onNotification(1); // Notify clients about this shit
}
break;
}
else {
// Only continue if frame not empty
if (pre.cols != size.width && pre.rows != size.height) {
resize(pre, frame, size);
pre.release();
}
else {
frame = pre;
}
auto end = std::chrono::system_clock::now();
std::time_t ts = std::chrono::system_clock::to_time_t(end);
dPacket* pack = new dPacket{ id,&frame};
for (auto i : clients) {
i->onPNewFrame(pack);
}
frame.release();
delete pack;
}
}
catch (int e) {
cout << endl << "-----Exception during capture process! CODE " << e << endl;
}
// End camera manipulations
}
cout << "Camera timed out, or connection is closed..." << endl;
if (tryResetConnection) {
cout << "Reconnection flag is set, retrying after 3 seconds..." << endl;
for (FrameListener* i : clients) {
i->onNotification(-1); // Notify clients about this shit
}
this_thread::sleep_for(chrono::milliseconds(3000));
stream();
}
return true;
}
void Camera::killStream(){
tryResetConnection = false;
capture = false;
ipCam.release();
}
void Camera::setReconnectable(bool reconFlag) {
tryResetConnection = reconFlag;
}
bool Camera::getReconnectable() {
return tryResetConnection;
}
vector<bool> Camera::getState() {
vector<bool> states;
states.push_back(isPlaying);
states.push_back(ipCam.isOpened());
return states;
}
</bool></bool>GLWidget.h :
#ifndef GLWIDGET_H
#define GLWIDGET_H
#include <qopenglwidget>
#include <qmouseevent>
#include "FrameListener.h"
#include "Camera.h"
#include "FrameListener.h"
#include
#include "Camera.h"
#include "CamUtils.h"
#include
#include "dPacket.h"
#include <chrono>
#include <ctime>
#include
#include "FullScreenVideo.h"
#include <qmovie>
#include "helper.h"
#include <iostream>
#include <qpainter>
#include <qtimer>
class Helper;
class GLWidget : public QOpenGLWidget, public FrameListener
{
Q_OBJECT
public:
GLWidget(std::string camId, CamUtils *cUtils, int width, int height, bool denyFullScreen_ = false, bool detectFlag_=false, QWidget* parent = nullptr);
void killStream();
~GLWidget();
public slots:
void animate();
void setBufferEnabled(bool setState);
void setCameraRetryConnection(bool setState);
void GLUpdate(); // Call to update the widget
void onRightClickMenu(const QPoint& point);
protected:
void paintEvent(QPaintEvent* event) override;
void onPNewFrame(dPacket* frame);
void onNotification(int alert_code);
private:
// Objects and resourses
Helper* helper;
Camera* cam;
CamUtils* camUtils;
QTimer* timer; // Keep track of update
QPixmap lastImage;
QMovie* connMov;
QMovie* test;
QPixmap logo;
// Control fields
int width;
int height;
int camUtilsAddr;
int elapsed;
std::thread* camThread;
std::string camId;
bool denyFullScreen = false;
bool playing = true;
bool streaming = true;
bool debug = false;
bool connecting = true;
int lastFlag = 0;
// Debug fields
std::chrono::high_resolution_clock::time_point lastFrameAt;
std::chrono::high_resolution_clock::time_point now;
std::chrono::duration<double> painTime; // time took to draw last frame
//Buffer stuff
std::queue<qpixmap> buffer;
bool bufferEnabled = false;
bool initialBuffer = false;
bool buffering = true;
bool frameProcessing = false;
//Functions
QImage toQImageFromPMat(cv::Mat* inFrame);
void mousePressEvent(QMouseEvent* event) override;
void drawImageGLLatest(QPainter* painter, QPaintEvent* event, int elapsed);
void drawOnPaused(QPainter* painter, QPaintEvent* event, int elapsed);
void drawOnStatus(int statusFlag, QPainter* painter, QPaintEvent* event, int elapsed);
};
#endif
</qpixmap></double></qtimer></qpainter></iostream></qmovie></ctime></chrono></qmouseevent></qopenglwidget>GLWidget.cpp :
#include "glwidget.h"
#include <future>
FullScreenVideo* fullScreen;
GLWidget::GLWidget(std::string camId_, CamUtils* cUtils, int width_, int height_, bool denyFullScreen_, bool detectFlag_, QWidget* parent)
: QOpenGLWidget(parent), helper(helper)
{
cout << "Player for CAMERA " << camId_ << endl;
/* Underlying properties */
camUtils = cUtils;
cout << "GLWidget Incoming CamUtils addr " << camUtils << endl;
cout << "GLWidget Set CamUtils addr " << camUtils << endl;
camId = camId_;
elapsed = 0;
width = width_ + 5;
height = height_ + 5;
helper = new Helper();
setFixedSize(width, height);
denyFullScreen = denyFullScreen_;
/* Camera capture thread */
cam = new Camera(camUtils->getCameraStreamURL(camId), width_, height_, detectFlag_);
cam->addListener(this);
/* Sync states */
vector<bool> initState = cam->getState();
playing = initState[0];
streaming = initState[1];
cout << "Initial states: " << playing << " " << streaming << endl;
camThread = new std::thread(&Camera::stream, cam);
cout << "================================================" << endl;
// Right click set up
setContextMenuPolicy(Qt::CustomContextMenu);
/* Loading gif */
connMov = new QMovie("establishingConnection.gif");
connMov->start();
QString url = R"(RLC-logo.png)";
logo = QPixmap(url);
QTimer* timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(GLUpdate()));
timer->start(1000/30);
playing = true;
}
/* SYSTEM */
void GLWidget::animate()
{
elapsed = (elapsed + qobject_cast(sender())->interval()) % 1000;
std::cout << elapsed << "\n";
}
void GLWidget::GLUpdate() {
/* Process descisions before update call */
if (bufferEnabled) {
/* Process buffer before update */
now = chrono::high_resolution_clock::now();
std::chrono::duration timeSinceLastUpdate = now - lastFrameAt;
if (timeSinceLastUpdate.count() > 25) {
if (buffer.size() > 1 && playing) {
lastImage.swap(buffer.front());
buffer.pop();
lastFrameAt = chrono::high_resolution_clock::now();
}
}
//update(); // Update
}
else {
/* No buffer */
}
repaint();
}
/* EVENTS */
void GLWidget::onRightClickMenu(const QPoint& point) {
cout << "Right click request got" << endl;
QPoint globPos = this->mapToGlobal(point);
QMenu myMenu;
if (!denyFullScreen) {
myMenu.addAction("Open Full Screen");
}
myMenu.addAction("Toggle Debug Info");
QAction* selected = myMenu.exec(globPos);
if (selected) {
string optiontxt = selected->text().toStdString();
if (optiontxt == "Open Full Screen") {
cout << "Chose to open full screen of " << camId << endl;
fullScreen = new FullScreenVideo(bufferEnabled, this);
fullScreen->setUpView(camUtils, camId);
fullScreen->show();
playing = false;
}
if (optiontxt == "Toggle Debug Info") {
cout << "Chose to toggle debug of " << camId << endl;
debug = !debug;
}
}
else {
cout << "Chose nothing!" << endl;
}
}
void GLWidget::onPNewFrame(dPacket* inPack) {
lastFlag = 0;
if (bufferEnabled) {
buffer.push(QPixmap::fromImage(toQImageFromPMat(inPack->frame)));
}
else {
if (playing) {
/* Only process if this widget is playing */
frameProcessing = true;
lastImage.convertFromImage(toQImageFromPMat(inPack->frame));
frameProcessing = false;
}
}
if (lastFlag != -1 && !lastImage.isNull()) {
connecting = false;
}
else {
connecting = true;
}
}
void GLWidget::onNotification(int alert) {
lastFlag = alert;
}
/* Paint events*/
void GLWidget::paintEvent(QPaintEvent* event)
{
QPainter painter(this);
if (lastFlag != 0 || connecting) {
drawOnStatus(lastFlag, &painter, event, elapsed);
}
else {
/* Actual frame drawing */
if (playing) {
if (!frameProcessing) {
drawImageGLLatest(&painter, event, elapsed);
}
}
else {
drawOnPaused(&painter, event, elapsed);
}
}
painter.end();
}
/* DRAWING STUFF */
void GLWidget::drawOnStatus(int statusFlag, QPainter* bgPaint, QPaintEvent* event, int elapsed) {
QString str;
QFont font("times", 15);
bgPaint->eraseRect(QRect(0, 0, width, height));
if (!lastImage.isNull()) {
bgPaint->drawPixmap(QRect(0, 0, width, height), lastImage);
}
/* Test background painting */
if (connecting) {
string k = "Connecting to " + camUtils->getIp(camId);
str.append(k.c_str());
}
else {
switch (statusFlag) {
case 1:
str = "Blank frame received...";
break;
case -1:
if (cam->getReconnectable()) {
str = "Connection lost, will try to reconnect.";
bgPaint->setOpacity(0.3);
}
else {
str = "Connection lost...";
bgPaint->setOpacity(0.3);
}
break;
}
}
bgPaint->drawPixmap(QRect(0, 0, width, height), QPixmap::fromImage(connMov->currentImage()));
bgPaint->setPen(Qt::red);
bgPaint->setFont(font);
QFontMetrics fm(font);
const QRect kek(0, 0, fm.width(str), fm.height());
QRect bound;
bgPaint->setOpacity(1);
bgPaint->drawText(bgPaint->viewport().width()/2 - kek.width()/2, bgPaint->viewport().height()/2 - kek.height(), str);
bgPaint->drawPixmap(bgPaint->viewport().width() / 2 - logo.width()/2, height - logo.width() - 15, logo);
}
void GLWidget::drawOnPaused(QPainter* painter, QPaintEvent* event, int elapsed) {
painter->eraseRect(0, 0, width, height);
QFont font = painter->font();
font.setPointSize(18);
painter->setPen(Qt::red);
QFontMetrics fm(font);
QString str("Paused");
painter->drawPixmap(QRect(0, 0, width, height),lastImage);
painter->drawText(QPoint(painter->viewport().width() - fm.width(str), 50), str);
if (debug) {
QFont font = painter->font();
font.setPointSize(25);
painter->setPen(Qt::red);
string camMess = "CAMID: " + camId;
QString mess(camMess.c_str());
string camIp = "IP: " + camUtils->getIp(camId);
QString ipMess(camIp.c_str());
QString bufferSize("Buffer size: " + QString::number(buffer.size()));
QString lastFrameText("Last frame draw time: " + QString::number(painTime.count()) + "s");
painter->drawText(QPoint(10, 50), mess);
painter->drawText(QPoint(10, 60), ipMess);
QString bufferState;
if (bufferEnabled) {
bufferState = QString("Experimental BUFFER is enabled!");
QString currentBufferSize("Current buffer load: " + QString::number(buffer.size()));
painter->drawText(QPoint(10, 80), currentBufferSize);
}
else {
bufferState = QString("Experimental BUFFER is disabled!");
}
painter->drawText(QPoint(10, 70), bufferState);
painter->drawText(QPoint(10, height - 25), lastFrameText);
}
}
void GLWidget::drawImageGLLatest(QPainter* painter, QPaintEvent* event, int elapsed) {
auto start = chrono::high_resolution_clock::now();
painter->drawPixmap(QRect(0, 0, width, height), lastImage);
if (debug) {
QFont font = painter->font();
font.setPointSize(25);
painter->setPen(Qt::red);
string camMess = "CAMID: " + camId;
QString mess(camMess.c_str());
string camIp = "IP: " + camUtils->getIp(camId);
QString ipMess(camIp.c_str());
QString bufferSize("Buffer size: " + QString::number(buffer.size()));
QString lastFrameText("Last frame draw time: " + QString::number(painTime.count()) + "s");
painter->drawText(QPoint(10, 50), mess);
painter->drawText(QPoint(10, 60), ipMess);
QString bufferState;
if(bufferEnabled){
bufferState = QString("Experimental BUFFER is enabled!");
QString currentBufferSize("Current buffer load: " + QString::number(buffer.size()));
painter->drawText(QPoint(10,80), currentBufferSize);
}
else {
bufferState = QString("Experimental BUFFER is disabled!");
QString currentBufferSize("Current buffer load: " + QString::number(buffer.size()));
painter->drawText(QPoint(10, 80), currentBufferSize);
}
painter->drawText(QPoint(10, 70), bufferState);
painter->drawText(QPoint(10, height - 25), lastFrameText);
}
auto end = chrono::high_resolution_clock::now();
painTime = end - start;
}
/* END DRAWING STUFF */
/* UI EVENTS */
void GLWidget::mousePressEvent(QMouseEvent* e) {
if (e->button() == Qt::LeftButton) {
if (fullScreen == nullptr || !fullScreen->isVisible()) { // Do not unpause if window is opened
playing = !playing;
}
}
if (e->button() == Qt::RightButton) {
onRightClickMenu(e->pos());
}
}
/* Utilities */
QImage GLWidget::toQImageFromPMat(cv::Mat* mat) {
return QImage(mat->data, mat->cols, mat->rows, QImage::Format_RGB888).rgbSwapped();
}
/* State control */
void GLWidget::killStream() {
cam->killStream();
camThread->join();
}
void GLWidget::setBufferEnabled(bool newBufferState) {
cout << "Player: " << camId << ", buffer state updated: " << newBufferState << endl;
bufferEnabled = newBufferState;
buffer.empty();
}
void GLWidget::setCameraRetryConnection(bool newState) {
cam->setReconnectable(newState);
}
/* Destruction */
GLWidget::~GLWidget() {
cam->killStream();
camThread->join();
}
</bool></future>CamUtils.h :
#pragma once
#include <iostream>
#include <vector>
#include <fstream>
#include <map>
#include <string>
#include <sstream>
#include <algorithm>
#include <nlohmann></nlohmann>json.hpp>
using namespace std;
using json = nlohmann::json;
class CamUtils
{
private:
string camDb = "cameras.dViewer";
map> cameraList; // Legacy
json cameras;
ofstream dbFile;
bool dbExists(); // Always hard coded
/* Old IMPLEMENTATION */
void writeLineToDb_(const string& content, bool append = false);
void loadCameras_();
/* JSON based */
void loadCameras();
public:
CamUtils();
string generateRandomString(size_t length);
string getCameraStreamURL(string cameraId) const;
string saveCamera(string ip, string username, string pass); // Return generated id
vector<string> listAllCameraIds();
string getIp(string cameraId);
};
</string></algorithm></sstream></string></map></fstream></vector></iostream>CamUtils.cpp :
#include "CamUtils.h"
#pragma comment(lib, "rpcrt4.lib") // UuidCreate - Minimum supported OS Win 2000
#include
#include <iostream>
CamUtils::CamUtils()
{
if (!dbExists()) {
ofstream dbFile;
dbFile.open(camDb);
cameras["cameras"] = json::array();
dbFile << cameras << std::endl;
dbFile.close();
}
else {
loadCameras();
}
}
vector<string> CamUtils::listAllCameraIds() {
vector<string> ids;
cout << "IN LIST " << endl;
for (auto& cam : cameras["cameras"]) {
ids.push_back(cam["id"].get<string>());
//cout << cam["id"].get<string>() << std::endl;
}
return ids;
}
string CamUtils::getIp(string id) {
vector<string> camDetails = cameraList[id];
string ip = "NO IP WILL DISPLAYED UNTIL I FIGURE OUT A BUG";
for (auto& cam : cameras["cameras"]) {
if (id == cam["id"]) {
ip = cam["ip"].get<string>();
}
}
return ip;
}
string CamUtils::getCameraStreamURL(string id) const {
string url = "err"; // err is the default, it will be overwritten in case id is found, dont forget to check for it
for (auto& cam : cameras["cameras"]) {
if (id == cam["id"]) {
if (cam["username"].get<string>() == "null") {
url = "rtsp://" + cam["ip"].get<string>() + ":554/axis-media/media.amp?tcp";
}
else {
url = "rtsp://" + cam["username"].get<string>() + ":" + cam["password"].get<string>() + "@" + cam["ip"].get<string>() + ":554/axis-media/media.amp?streamprofile=720_30";
}
}
}
return url; // Dont forget to check for err when using this shit
}
string CamUtils::saveCamera(string ip, string username, string password) {
UUID uid;
UuidCreate(&uid);
char* str;
UuidToStringA(&uid, (RPC_CSTR*)&str);
string id = str;
cout << "GEN: " << id << endl;
json cam = json({}); //Create emtpy object
cam["id"] = id;
cam["ip"] = ip;
cam["username"] = username;
cam["password"] = password;
cameras["cameras"].push_back(cam);
std::ofstream out(camDb);
out << cameras << std::endl;
cout << cameras["cameras"] << endl;
cout << "Saved camera as " << id << endl;
return id;
}
bool CamUtils::dbExists() {
ifstream dbFile(camDb);
return (bool)dbFile;
}
void CamUtils::loadCameras() {
cout << "Load call" << endl;
ifstream dbFile(camDb);
string line;
string wholeFile;
while (std::getline(dbFile, line)) {
cout << line << endl;
wholeFile += line;
}
try {
cameras = json::parse(wholeFile);
//cout << cameras["cameras"] << endl;
}
catch (exception e) {
cout << e.what() << endl;
}
dbFile.close();
}
/*
LEGACY CODE, TO BE REMOVED!
*/
void CamUtils::loadCameras_() {
/*
LEGACY CODE:
This used to be the way to load cameras, but I moved on to JSON based configuration so this is no longer needed and will be removed soon
*/
ifstream dbFile(camDb);
string line;
while (std::getline(dbFile, line)) {
/*
This function load camera data to the map:
The order MUST be the following: 0:ID, 1:IP, 2:USERNAME, 3:PASSWORD.
Always delimited with | no spaces between!
*/
if (!line.empty()) {
stringstream ss(line);
string item;
vector<string> splitString;
while (std::getline(ss, item, '|')) {
splitString.push_back(item);
}
if (splitString.size() > 0) {
/* Dont even parse if the program didnt split right*/
//cout << "Split string: " << splitString.size() << "\n";
for (int i = 0; i < (splitString.size()); i++) cameraList[splitString[0]].push_back(splitString[i]);
}
}
}
}
void CamUtils::writeLineToDb_(const string & content, bool append) {
ofstream dbFile;
cout << "Creating?";
if (append) {
dbFile.open(camDb, ios_base::app);
}
else {
dbFile.open(camDb);
}
dbFile << content.c_str() << "\r\n";
dbFile.flush();
}
/* JSON Reworx */
string CamUtils::generateRandomString(size_t length)
{
const char* charmap = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
const size_t charmapLength = strlen(charmap);
auto generator = [&]() { return charmap[rand() % charmapLength]; };
string result;
result.reserve(length);
generate_n(back_inserter(result), length, generator);
return result;
}
</string></string></string></string></string></string></string></string></string></string></string></string></iostream>End of example
How would I go about decreasing CPU usage when dealing with large amount of streams ?
-
extract subtitle from video ffmpeg. subs.srt : Invalid argument
3 juillet 2019, par evgeni fotialet filename_ext = file.path.split('/').pop()
let filename = filename_ext.split('.').slice(0, filename_ext.split('.').length-1).join('.')
var result = ffmpeg({
MEMFS: [{name: filename_ext, data: buffer}],
arguments: ["-i", filename_ext, "-map", "0:s:0", "subs.srt"],
// Ignore stdin read requests
stdin: function() {},
});
// Write out.webm to disk.
var out = result.MEMFS[0];
fs.outputFile(pathname + '/' + out.name, Buffer(out.data), 'binary');I get the following
ffmpeg version n3.1.2 Copyright (c) 2000-2016 the FFmpeg developers
built with emcc (Emscripten gcc/clang-like replacement) 1.36.7 ()
configuration: --cc=emcc --enable-cross-compile --target-os=none --arch=x86 --disable-runtime-cpudetect --disable-asm --disable-fast-unaligned --disable-pthreads --disable-w32threads --disable-os2threads --disable-debug --disable-stripping --disable-all --enable-ffmpeg --enable-avcodec --enable-avformat --enable-avutil --enable-swresample --enable-swscale --enable-avfilter --disable-network --disable-d3d11va --disable-dxva2 --disable-vaapi --disable-vda --disable-vdpau --enable-decoder=vp8 --enable-decoder=vp9 --enable-decoder=theora --enable-decoder=mpeg2video --enable-decoder=mpeg4 --enable-decoder=h264 --enable-decoder=hevc --enable-decoder=png --enable-decoder=mjpeg --enable-decoder=vorbis --enable-decoder=opus --enable-decoder=mp3 --enable-decoder=ac3 --enable-decoder=aac --enable-decoder=ass --enable-decoder=ssa --enable-decoder=srt --enable-decoder=webvtt --enable-demuxer=matroska --enable-demuxer=ogg --enable-demuxer=avi --enable-demuxer=mov --enable-demuxer=flv --enable-demuxer=mpegps --enable-demuxer=image2 --enable-demuxer=mp3 --enable-demuxer=concat --enable-protocol=file --enable-filter=aresample --enable-filter=scale --enable-filter=crop --enable-filter=overlay --disable-bzlib --disable-iconv --disable-libxcb --disable-lzma --disable-sdl --disable-securetransport --disable-xlib --disable-zlib --enable-encoder=libvpx_vp8 --enable-encoder=libopus --enable-encoder=mjpeg --enable-muxer=webm --enable-muxer=ogg --enable-muxer=null --enable-muxer=image2 --enable-filter=subtitles --enable-libass --enable-libopus --enable-libvpx --extra-cflags=-I../libvpx/dist/include --extra-ldflags=-L../libvpx/dist/lib
libavutil 55. 28.100 / 55. 28.100
libavcodec 57. 48.101 / 57. 48.101
libavformat 57. 41.100 / 57. 41.100
libavfilter 6. 47.100 / 6. 47.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 1.100 / 2. 1.100
[h264 @ 0x7d7510] Warning: not compiled with thread support, using thread emulation
[aac @ 0x7d81c0] Warning: not compiled with thread support, using thread emulation
[ssa @ 0x7d8e30] Warning: not compiled with thread support, using thread emulation
Input #0, matroska,webm, from 'censored filename.mkv':
Metadata:
encoder : no_variable_data
creation_time : 1970-01-01 00:00:00
Duration: 00:23:40.13, start: 0.000000, bitrate: 2789 kb/s
Stream #0:0: Video: h264 (High), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
Metadata:
BPS : 2658044
BPS-eng : 2658044
DURATION : 00:23:40.045000000
DURATION-eng : 00:23:40.045000000
NUMBER_OF_FRAMES: 34047
NUMBER_OF_FRAMES-eng: 34047
NUMBER_OF_BYTES : 471817808
NUMBER_OF_BYTES-eng: 471817808
_STATISTICS_WRITING_APP: no_variable_data
_STATISTICS_WRITING_APP-eng: no_variable_data
_STATISTICS_WRITING_DATE_UTC: 1970-01-01 00:00:00
_STATISTICS_WRITING_DATE_UTC-eng: 1970-01-01 00:00:00
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:1(jpn): Audio: aac (LC), 44100 Hz, stereo, fltp (default)
Metadata:
BPS : 128000
BPS-eng : 128000
DURATION : 00:23:40.109000000
DURATION-eng : 00:23:40.109000000
NUMBER_OF_FRAMES: 61159
NUMBER_OF_FRAMES-eng: 61159
NUMBER_OF_BYTES : 22721748
NUMBER_OF_BYTES-eng: 22721748
_STATISTICS_WRITING_APP: no_variable_data
_STATISTICS_WRITING_APP-eng: no_variable_data
_STATISTICS_WRITING_DATE_UTC: 1970-01-01 00:00:00
_STATISTICS_WRITING_DATE_UTC-eng: 1970-01-01 00:00:00
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:2(eng): Subtitle: ass (default)
Metadata:
BPS : 110
BPS-eng : 110
DURATION : 00:23:25.280000000
DURATION-eng : 00:23:25.280000000
NUMBER_OF_FRAMES: 298
NUMBER_OF_FRAMES-eng: 298
NUMBER_OF_BYTES : 19407
NUMBER_OF_BYTES-eng: 19407
_STATISTICS_WRITING_APP: no_variable_data
_STATISTICS_WRITING_APP-eng: no_variable_data
_STATISTICS_WRITING_DATE_UTC: 1970-01-01 00:00:00
_STATISTICS_WRITING_DATE_UTC-eng: 1970-01-01 00:00:00
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:3: Attachment: ttf
Metadata:
filename : OpenSans-Semibold.ttf
mimetype : application/x-truetype-font
[NULL @ 0x9eac90] Unable to find a suitable output format for 'subs.srt'
subs.srt: Invalid argumentthe file is a mkv video file
Other info
Codecs:
D..... = Decoding supported
.E.... = Encoding supported
..V... = Video codec
..A... = Audio codec
..S... = Subtitle codec
...I.. = Intra frame-only codec
....L. = Lossy compression
.....S = Lossless compression
-------
..VI.. 012v Uncompressed 4:2:2 10-bit
..V.L. 4xm 4X Movie
..VI.S 8bps QuickTime 8BPS video
..VIL. a64_multi Multicolor charset for Commodore 64
..VIL. a64_multi5 Multicolor charset for Commodore 64, extended with 5th color (colram)
..V..S aasc Autodesk RLE
..VIL. aic Apple Intermediate Codec
..VI.S alias_pix Alias/Wavefront PIX image
..VIL. amv AMV Video
..V.L. anm Deluxe Paint Animation
..V.L. ansi ASCII/ANSI art
..V..S apng APNG (Animated Portable Network Graphics) image
..VIL. asv1 ASUS V1
..VIL. asv2 ASUS V2
..VIL. aura Auravision AURA
..VIL. aura2 Auravision Aura 2
..V... avrn Avid AVI Codec
..VI.. avrp Avid 1:1 10-bit RGB Packer
..V.L. avs AVS (Audio Video Standard) video
..VI.. avui Avid Meridien Uncompressed
..VI.. ayuv Uncompressed packed MS 4:4:4:4
..V.L. bethsoftvid Bethesda VID video
..V.L. bfi Brute Force & Ignorance
..V.L. binkvideo Bink video
..VI.. bintext Binary text
..VI.S bmp BMP (Windows and OS/2 bitmap)
..V..S bmv_video Discworld II BMV video
..VI.S brender_pix BRender PIX image
..V.L. c93 Interplay C93
..V.L. cavs Chinese AVS (Audio Video Standard) (AVS1-P2, JiZhun profile)
..V.L. cdgraphics CD Graphics video
..VIL. cdxl Commodore CDXL video
..V.L. cfhd Cineform HD
..V.L. cinepak Cinepak
..VIL. cljr Cirrus Logic AccuPak
..VI.S cllc Canopus Lossless Codec
..V.L. cmv Electronic Arts CMV video
..V... cpia CPiA video format
..V..S cscd CamStudio
..VIL. cyuv Creative YUV (CYUV)
..V.LS daala Daala
..VILS dds DirectDraw Surface image decoder
..V.L. dfa Chronomaster DFA
..V.LS dirac Dirac
..VIL. dnxhd VC3/DNxHD
..VI.S dpx DPX (Digital Picture Exchange) image
..V.L. dsicinvideo Delphine Software International CIN video
..VIL. dvvideo DV (Digital Video)
..V..S dxa Feeble Files/ScummVM DXA
..VI.S dxtory Dxtory
..VIL. dxv Resolume DXV
..V.L. escape124 Escape 124
..V.L. escape130 Escape 130
..VILS exr OpenEXR image
..V..S ffv1 FFmpeg video codec #1
..VI.S ffvhuff Huffyuv FFmpeg variant
..V.L. fic Mirillis FIC
..V..S flashsv Flash Screen Video v1
..V.L. flashsv2 Flash Screen Video v2
..V..S flic Autodesk Animator Flic video
..V.L. flv1 FLV / Sorenson Spark / Sorenson H.263 (Flash Video)
..V..S fraps Fraps
..VI.S frwu Forward Uncompressed
..V.L. g2m Go2Meeting
..V..S gif GIF (Graphics Interchange Format)
..V.L. h261 H.261
D.V.L. h263 H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2
..V.L. h263i Intel H.263
..V.L. h263p H.263+ / H.263-1998 / H.263 version 2
D.V.LS h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
..VIL. hap Vidvox Hap decoder
D.V.L. hevc H.265 / HEVC (High Efficiency Video Coding)
..V.L. hnm4video HNM 4 video
..VIL. hq_hqa Canopus HQ/HQA
..VIL. hqx Canopus HQX
..VI.S huffyuv HuffYUV
..V.L. idcin id Quake II CIN video
..VI.. idf iCEDraw text
..V.L. iff_ilbm IFF ACBM/ANIM/DEEP/ILBM/PBM/RGB8/RGBN
..V.L. indeo2 Intel Indeo 2
..V.L. indeo3 Intel Indeo 3
..V.L. indeo4 Intel Indeo Video Interactive 4
..V.L. indeo5 Intel Indeo Video Interactive 5
..V.L. interplayvideo Interplay MVE video
..VILS jpeg2000 JPEG 2000
..VILS jpegls JPEG-LS
..VIL. jv Bitmap Brothers JV video
..V.L. kgv1 Kega Game Video
..V.L. kmvc Karl Morton's video codec
..VI.S lagarith Lagarith lossless
..VI.S ljpeg Lossless JPEG
..VI.S loco LOCO
..VI.S m101 Matrox Uncompressed SD
..V.L. mad Electronic Arts Madcow Video
..VI.S magicyuv MagicYUV Lossless Video
..VIL. mdec Sony PlayStation MDEC (Motion DECoder)
..V.L. mimic Mimic
DEVIL. mjpeg Motion JPEG
..VIL. mjpegb Apple MJPEG-B
..V.L. mmvideo American Laser Games MM Video
..V.L. motionpixels Motion Pixels video
..V.L. mpeg1video MPEG-1 video
D.V.L. mpeg2video MPEG-2 video
D.V.L. mpeg4 MPEG-4 part 2
..V.L. mpegvideo_xvmc MPEG-1/2 video XvMC (X-Video Motion Compensation)
..V.L. msa1 MS ATC Screen
..V.L. msmpeg4v1 MPEG-4 part 2 Microsoft variant version 1
..V.L. msmpeg4v2 MPEG-4 part 2 Microsoft variant version 2
..V.L. msmpeg4v3 MPEG-4 part 2 Microsoft variant version 3
..V..S msrle Microsoft RLE
..V.L. mss1 MS Screen 1
..VIL. mss2 MS Windows Media Video V9 Screen
..V.L. msvideo1 Microsoft Video 1
..VI.S mszh LCL (LossLess Codec Library) MSZH
..V.L. mts2 MS Expression Encoder Screen
..VIL. mvc1 Silicon Graphics Motion Video Compressor 1
..VIL. mvc2 Silicon Graphics Motion Video Compressor 2
..V.L. mxpeg Mobotix MxPEG video
..V.L. nuv NuppelVideo/RTJPEG
..V.L. paf_video Amazing Studio Packed Animation File Video
..VI.S pam PAM (Portable AnyMap) image
..VI.S pbm PBM (Portable BitMap) image
..VI.S pcx PC Paintbrush PCX image
..VI.S pgm PGM (Portable GrayMap) image
..VI.S pgmyuv PGMYUV (Portable GrayMap YUV) image
..VIL. pictor Pictor/PC Paint
..V..S png PNG (Portable Network Graphics) image
..VI.S ppm PPM (Portable PixelMap) image
..VIL. prores Apple ProRes (iCodec Pro)
..VIL. ptx V.Flash PTX image
..VI.S qdraw Apple QuickDraw
..V.L. qpeg Q-team QPEG
..V..S qtrle QuickTime Animation (RLE) video
..VI.S r10k AJA Kona 10-bit RGB Codec
..VI.S r210 Uncompressed RGB 10-bit
..VI.S rawvideo raw video
..VIL. rl2 RL2 video
..V.L. roq id RoQ video
..V.L. rpza QuickTime video (RPZA)
..V..S rscc innoHeim/Rsupport Screen Capture Codec
..V.L. rv10 RealVideo 1.0
..V.L. rv20 RealVideo 2.0
..V.L. rv30 RealVideo 3.0
..V.L. rv40 RealVideo 4.0
..V.L. sanm LucasArts SANM/SMUSH video
..V..S screenpresso Screenpresso
..VI.S sgi SGI image
..VI.S sgirle SGI RLE 8-bit
..VI.S sheervideo BitJazz SheerVideo
..V.L. smackvideo Smacker video
..V.L. smc QuickTime Graphics (SMC)
..V... smvjpeg Sigmatel Motion Video
..V.LS snow Snow
..VIL. sp5x Sunplus JPEG (SP5X)
..VI.S sunrast Sun Rasterfile image
..V.L. svq1 Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1
..V.L. svq3 Sorenson Vector Quantizer 3 / Sorenson Video 3 / SVQ3
..VI.S targa Truevision Targa image
..VI.. targa_y216 Pinnacle TARGA CineWave YUV16
..V.L. tdsc TDSC
..V.L. tgq Electronic Arts TGQ video
..V.L. tgv Electronic Arts TGV video
D.V.L. theora Theora
..VIL. thp Nintendo Gamecube THP video
..V.L. tiertexseqvideo Tiertex Limited SEQ video
..VI.S tiff TIFF image
..VIL. tmv 8088flex TMV
..V.L. tqi Electronic Arts TQI video
..V.L. truemotion1 Duck TrueMotion 1.0
..V.L. truemotion2 Duck TrueMotion 2.0
..V.L. truemotion2rt Duck TrueMotion 2.0 Real Time
..V..S tscc TechSmith Screen Capture Codec
..V.L. tscc2 TechSmith Screen Codec 2
..VIL. txd Renderware TXD (TeXture Dictionary) image
..V.L. ulti IBM UltiMotion
..VI.S utvideo Ut Video
..VI.S v210 Uncompressed 4:2:2 10-bit
..VI.S v210x Uncompressed 4:2:2 10-bit
..VI.. v308 Uncompressed packed 4:4:4
..VI.. v408 Uncompressed packed QT 4:4:4:4
..VI.S v410 Uncompressed 4:4:4 10-bit
..V.L. vb Beam Software VB
..VI.S vble VBLE Lossless Codec
..V.L. vc1 SMPTE VC-1
..V.L. vc1image Windows Media Video 9 Image v2
..VIL. vcr1 ATI VCR1
..VIL. vixl Miro VideoXL
..V.L. vmdvideo Sierra VMD video
..V..S vmnc VMware Screen Codec / VMware Video
D.V.L. vp3 On2 VP3
..V.L. vp5 On2 VP5
..V.L. vp6 On2 VP6
..V.L. vp6a On2 VP6 (Flash version, with alpha channel)
..V.L. vp6f On2 VP6 (Flash version)
..V.L. vp7 On2 VP7
DEV.L. vp8 On2 VP8 (encoders: libvpx )
D.V.L. vp9 Google VP9
..VILS webp WebP
..V.L. wmv1 Windows Media Video 7
..V.L. wmv2 Windows Media Video 8
..V.L. wmv3 Windows Media Video 9
..V.L. wmv3image Windows Media Video 9 Image
..VIL. wnv1 Winnov WNV1
..V..S wrapped_avframe AVFrame to AVPacket passthrough
..V.L. ws_vqa Westwood Studios VQA (Vector Quantized Animation) video
..V.L. xan_wc3 Wing Commander III / Xan
..V.L. xan_wc4 Wing Commander IV / Xxan
..VI.. xbin eXtended BINary text
..VI.S xbm XBM (X BitMap) image
..VIL. xface X-face image
..VI.S xwd XWD (X Window Dump) image
..VI.. y41p Uncompressed YUV 4:1:1 12-bit
..VI.S ylc YUY2 Lossless Codec
..V.L. yop Psygnosis YOP Video
..VI.. yuv4 Uncompressed packed 4:2:0
..V..S zerocodec ZeroCodec Lossless Video
..VI.S zlib LCL (LossLess Codec Library) ZLIB
..V..S zmbv Zip Motion Blocks Video
..A.L. 4gv 4GV (Fourth Generation Vocoder)
..A.L. 8svx_exp 8SVX exponential
..A.L. 8svx_fib 8SVX fibonacci
D.A.L. aac AAC (Advanced Audio Coding)
..A.L. aac_latm AAC LATM (Advanced Audio Coding LATM syntax)
D.A.L. ac3 ATSC A/52A (AC-3)
..A.L. adpcm_4xm ADPCM 4X Movie
..A.L. adpcm_adx SEGA CRI ADX ADPCM
..A.L. adpcm_afc ADPCM Nintendo Gamecube AFC
..A.L. adpcm_aica ADPCM Yamaha AICA
..A.L. adpcm_ct ADPCM Creative Technology
..A.L. adpcm_dtk ADPCM Nintendo Gamecube DTK
..A.L. adpcm_ea ADPCM Electronic Arts
..A.L. adpcm_ea_maxis_xa ADPCM Electronic Arts Maxis CDROM XA
..A.L. adpcm_ea_r1 ADPCM Electronic Arts R1
..A.L. adpcm_ea_r2 ADPCM Electronic Arts R2
..A.L. adpcm_ea_r3 ADPCM Electronic Arts R3
..A.L. adpcm_ea_xas ADPCM Electronic Arts XAS
..A.L. adpcm_g722 G.722 ADPCM
..A.L. adpcm_g726 G.726 ADPCM
..A.L. adpcm_g726le G.726 ADPCM little-endian
..A.L. adpcm_ima_amv ADPCM IMA AMV
..A.L. adpcm_ima_apc ADPCM IMA CRYO APC
..A.L. adpcm_ima_dat4 ADPCM IMA Eurocom DAT4
..A.L. adpcm_ima_dk3 ADPCM IMA Duck DK3
..A.L. adpcm_ima_dk4 ADPCM IMA Duck DK4
..A.L. adpcm_ima_ea_eacs ADPCM IMA Electronic Arts EACS
..A.L. adpcm_ima_ea_sead ADPCM IMA Electronic Arts SEAD
..A.L. adpcm_ima_iss ADPCM IMA Funcom ISS
..A.L. adpcm_ima_oki ADPCM IMA Dialogic OKI
..A.L. adpcm_ima_qt ADPCM IMA QuickTime
..A.L. adpcm_ima_rad ADPCM IMA Radical
..A.L. adpcm_ima_smjpeg ADPCM IMA Loki SDL MJPEG
..A.L. adpcm_ima_wav ADPCM IMA WAV
..A.L. adpcm_ima_ws ADPCM IMA Westwood
..A.L. adpcm_ms ADPCM Microsoft
..A.L. adpcm_mtaf ADPCM MTAF
..A.L. adpcm_psx ADPCM Playstation
..A.L. adpcm_sbpro_2 ADPCM Sound Blaster Pro 2-bit
..A.L. adpcm_sbpro_3 ADPCM Sound Blaster Pro 2.6-bit
..A.L. adpcm_sbpro_4 ADPCM Sound Blaster Pro 4-bit
..A.L. adpcm_swf ADPCM Shockwave Flash
..A.L. adpcm_thp ADPCM Nintendo THP
..A.L. adpcm_thp_le ADPCM Nintendo THP (Little-Endian)
..A.L. adpcm_vima LucasArts VIMA audio
..A.L. adpcm_xa ADPCM CDROM XA
..A.L. adpcm_yamaha ADPCM Yamaha
..A..S alac ALAC (Apple Lossless Audio Codec)
..A.L. amr_nb AMR-NB (Adaptive Multi-Rate NarrowBand)
..A.L. amr_wb AMR-WB (Adaptive Multi-Rate WideBand)
..A..S ape Monkey's Audio
..A.L. atrac1 ATRAC1 (Adaptive TRansform Acoustic Coding)
..A.L. atrac3 ATRAC3 (Adaptive TRansform Acoustic Coding 3)
..A.L. atrac3p ATRAC3+ (Adaptive TRansform Acoustic Coding 3+)
..A.L. avc On2 Audio for Video Codec
..A.L. binkaudio_dct Bink Audio (DCT)
..A.L. binkaudio_rdft Bink Audio (RDFT)
..A.L. bmv_audio Discworld II BMV audio
..A.L. celt Constrained Energy Lapped Transform (CELT)
..A.L. comfortnoise RFC 3389 Comfort Noise
..A.L. cook Cook / Cooker / Gecko (RealAudio G2)
..A.L. dsd_lsbf DSD (Direct Stream Digital), least significant bit first
..A.L. dsd_lsbf_planar DSD (Direct Stream Digital), least significant bit first, planar
..A.L. dsd_msbf DSD (Direct Stream Digital), most significant bit first
..A.L. dsd_msbf_planar DSD (Direct Stream Digital), most significant bit first, planar
..A.L. dsicinaudio Delphine Software International CIN audio
..A.L. dss_sp Digital Speech Standard - Standard Play mode (DSS SP)
..A..S dst DST (Direct Stream Transfer)
..A.LS dts DCA (DTS Coherent Acoustics)
..A.L. dvaudio DV audio
..A.L. eac3 ATSC A/52B (AC-3, E-AC-3)
..A.L. evrc EVRC (Enhanced Variable Rate Codec)
..A..S flac FLAC (Free Lossless Audio Codec)
..A.L. g723_1 G.723.1
..A.L. g729 G.729
..A.L. gsm GSM
..A.L. gsm_ms GSM Microsoft variant
..A.L. iac IAC (Indeo Audio Coder)
..A.L. ilbc iLBC (Internet Low Bitrate Codec)
..A.L. imc IMC (Intel Music Coder)
..A.L. interplay_dpcm DPCM Interplay
..A.L. interplayacm Interplay ACM
..A.L. mace3 MACE (Macintosh Audio Compression/Expansion) 3:1
..A.L. mace6 MACE (Macintosh Audio Compression/Expansion) 6:1
..A.L. metasound Voxware MetaSound
..A..S mlp MLP (Meridian Lossless Packing)
..A.L. mp1 MP1 (MPEG audio layer 1)
..A.L. mp2 MP2 (MPEG audio layer 2)
D.A.L. mp3 MP3 (MPEG audio layer 3)
..A.L. mp3adu ADU (Application Data Unit) MP3 (MPEG audio layer 3)
..A.L. mp3on4 MP3onMP4
..A..S mp4als MPEG-4 Audio Lossless Coding (ALS)
..A.L. musepack7 Musepack SV7
..A.L. musepack8 Musepack SV8
..A.L. nellymoser Nellymoser Asao
DEA.L. opus Opus (Opus Interactive Audio Codec) (encoders: libopus )
..A.L. paf_audio Amazing Studio Packed Animation File Audio
..A.L. pcm_alaw PCM A-law / G.711 A-law
..A..S pcm_bluray PCM signed 16|20|24-bit big-endian for Blu-ray media
..A..S pcm_dvd PCM signed 20|24-bit big-endian
..A..S pcm_f32be PCM 32-bit floating point big-endian
..A..S pcm_f32le PCM 32-bit floating point little-endian
..A..S pcm_f64be PCM 64-bit floating point big-endian
..A..S pcm_f64le PCM 64-bit floating point little-endian
..A..S pcm_lxf PCM signed 20-bit little-endian planar
..A.L. pcm_mulaw PCM mu-law / G.711 mu-law
..A..S pcm_s16be PCM signed 16-bit big-endian
..A..S pcm_s16be_planar PCM signed 16-bit big-endian planar
..A..S pcm_s16le PCM signed 16-bit little-endian
..A..S pcm_s16le_planar PCM signed 16-bit little-endian planar
..A..S pcm_s24be PCM signed 24-bit big-endian
..A..S pcm_s24daud PCM D-Cinema audio signed 24-bit
..A..S pcm_s24le PCM signed 24-bit little-endian
..A..S pcm_s24le_planar PCM signed 24-bit little-endian planar
..A..S pcm_s32be PCM signed 32-bit big-endian
..A..S pcm_s32le PCM signed 32-bit little-endian
..A..S pcm_s32le_planar PCM signed 32-bit little-endian planar
..A..S pcm_s8 PCM signed 8-bit
..A..S pcm_s8_planar PCM signed 8-bit planar
..A..S pcm_u16be PCM unsigned 16-bit big-endian
..A..S pcm_u16le PCM unsigned 16-bit little-endian
..A..S pcm_u24be PCM unsigned 24-bit big-endian
..A..S pcm_u24le PCM unsigned 24-bit little-endian
..A..S pcm_u32be PCM unsigned 32-bit big-endian
..A..S pcm_u32le PCM unsigned 32-bit little-endian
..A..S pcm_u8 PCM unsigned 8-bit
..A.L. pcm_zork PCM Zork
..A.L. qcelp QCELP / PureVoice
..A.L. qdm2 QDesign Music Codec 2
..A.L. qdmc QDesign Music
..A.L. ra_144 RealAudio 1.0 (14.4K)
..A.L. ra_288 RealAudio 2.0 (28.8K)
..A..S ralf RealAudio Lossless
..A.L. roq_dpcm DPCM id RoQ
..A..S s302m SMPTE 302M
..A.L. sdx2_dpcm DPCM Squareroot-Delta-Exact
..A..S shorten Shorten
..A.L. sipr RealAudio SIPR / ACELP.NET
..A.L. smackaudio Smacker audio
..A.L. smv SMV (Selectable Mode Vocoder)
..A.L. sol_dpcm DPCM Sol
..A... sonic Sonic
..A... sonicls Sonic lossless
..A.L. speex Speex
..A..S tak TAK (Tom's lossless Audio Kompressor)
..A..S truehd TrueHD
..A.L. truespeech DSP Group TrueSpeech
..A..S tta TTA (True Audio)
..A.L. twinvq VQF TwinVQ
..A.L. vmdaudio Sierra VMD audio
D.A.L. vorbis Vorbis
..A.L. voxware Voxware RT29 Metasound
..A... wavesynth Wave synthesis pseudo-codec
..A.LS wavpack WavPack
..A.L. westwood_snd1 Westwood Audio (SND1)
..A..S wmalossless Windows Media Audio Lossless
..A.L. wmapro Windows Media Audio 9 Professional
..A.L. wmav1 Windows Media Audio 1
..A.L. wmav2 Windows Media Audio 2
..A.L. wmavoice Windows Media Audio Voice
..A.L. xan_dpcm DPCM Xan
..A.L. xma1 Xbox Media Audio 1
..A.L. xma2 Xbox Media Audio 2
..D... bin_data binary data
..D... dvd_nav_packet DVD Nav packet
..D... klv SMPTE 336M Key-Length-Value (KLV) metadata
..D... otf OpenType font
..D... timed_id3 timed ID3 metadata
..D... ttf TrueType font
D.S... ass ASS (Advanced SSA) subtitle (decoders: ssa ass )
..S... dvb_subtitle DVB subtitles
..S... dvb_teletext DVB teletext
..S... dvd_subtitle DVD subtitles
..S... eia_608 EIA-608 closed captions
..S... hdmv_pgs_subtitle HDMV Presentation Graphic Stream subtitles
..S... hdmv_text_subtitle HDMV Text subtitle
..S... jacosub JACOsub subtitle
..S... microdvd MicroDVD subtitle
..S... mov_text MOV text
..S... mpl2 MPL2 subtitle
..S... pjs PJS (Phoenix Japanimation Society) subtitle
..S... realtext RealText subtitle
..S... sami SAMI subtitle
..S... srt SubRip subtitle with embedded timing
..S... ssa SSA (SubStation Alpha) subtitle
..S... stl Spruce subtitle format
D.S... subrip SubRip subtitle (decoders: srt )
..S... subviewer SubViewer subtitle
..S... subviewer1 SubViewer v1 subtitle
..S... text raw UTF-8 text
..S... vplayer VPlayer subtitle
D.S... webvtt WebVTT subtitle
..S... xsub XSUB
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