FFmpeg线程类封装+QT5实现直播拉流（文末含源代码）
- FFmpeg源码编译
参考：FFmpeg源码编译（基于MSVC编译器）
- Qt5使用FFmpeg
参考：Qt5 + FFmpeg
- FFmpegThread封装
- 初始化，在新的ffmpeg版本中，只需要初始化网络流格式。
//初始化(初始化一次即可)
void FFmpegThread::initlib() {
static QMutex mutex;
QMutexLocker locker(&mutex);
static bool isInit = false;
if (!isInit) {
//注册所有设备,主要用于本地摄像机播放支持
#ifdef ffmpegdevice
avdevice_register_all();
#endif
//初始化网络流格式,使用网络流时必须先执行
avformat_network_init();
isInit = true;
qDebug() << TIMEMS << "init ffmpeg lib ok" << " version:" << FFMPEG_VERSION;
}
}
- 设置字典参数AVDictionary *options
//设置缓存大小,1080p可将值调大
av_dict_set(&options, "buffer_size", "8192000", 0);
//以tcp方式打开,如果以udp方式打开将tcp替换为udp
av_dict_set(&options, "rtsp_transport", "tcp", 0);
//设置超时断开连接时间,单位微秒,3000000表示3秒
av_dict_set(&options, "stimeout", "3000000", 0);
// ,单位微秒,1000000表示1秒
av_dict_set(&options, "max_delay", "1000000", 0);
//自动开启线程数
av_dict_set(&options, "threads", "auto", 0);
//zerolatency:转码延迟，以牺牲视频质量减少时延
av_dict_set(&options, "tune", "zerolatency", 0);
- 打开指定的URL输入流
//打开视频流
avFormatContext = avformat_alloc_context();
int result = avformat_open_input(&avFormatContext, url.toStdString().data(), NULL, &options);
if (result < 0) {
qDebug() << "open input error" << url;
return false;
}
qDebug() << "open input:" << url << " " << result;
//释放设置参数
if (options != NULL) {
av_dict_free(&options);
qDebug() << "free option";
}
//获取流信息
result = avformat_find_stream_info(avFormatContext, NULL);
if (result < 0) {
qDebug() << TIMEMS << "find stream info error";
return false;
}
- 视频流解码器
videoStreamIndex = av_find_best_stream(avFormatContext,
AVMEDIA_TYPE_VIDEO,
-1,
-1,
const_cast<const AVCodec **>(&videoDecoder),
0);
if (videoStreamIndex < 0) {
qDebug() << "find video stream index error";
return false;
}
//获取视频流
AVStream *videoStream = avFormatContext->streams[videoStreamIndex];
//获取视频流解码器,或者指定解码器
videoCodec = avcodec_alloc_context3(NULL);
avcodec_parameters_to_context(videoCodec, videoStream->codecpar);
videoDecoder = const_cast<AVCodec *>(avcodec_find_decoder(videoCodec->codec_id));
//videoDecoder = avcodec_find_decoder_by_name("h264_qsv");
if (videoDecoder == NULL) {
qDebug() << "video decoder not found";
return false;
}
//设置加速解码
videoCodec->lowres = videoDecoder->max_lowres;
videoCodec->flags2 |= AV_CODEC_FLAG2_FAST;
//打开视频解码器
result = avcodec_open2(videoCodec, videoDecoder, NULL);
if (result < 0) {
qDebug() << "open video codec error";
return false;
}
//获取分辨率大小
videoWidth = videoStream->codecpar->width;
videoHeight = videoStream->codecpar->height;
//如果没有获取到宽高则返回
if (videoWidth == 0 || videoHeight == 0) {
qDebug() << "find width height error";
return false;
}
QString videoInfo = QString(u8"视频流信息 -> 索引: %1 解码: %2 格式: %3 时长: %4 秒 分辨率: %5*%6")
.arg(videoStreamIndex)
.arg(videoDecoder->name, avFormatContext->iformat->name)
.arg((avFormatContext->duration) / 1000000, videoWidth, videoHeight);
qDebug() << videoInfo;
- 音频流解码器
//循环查找音频流索引
audioStreamIndex = -1;
for (uint i = 0; i < avFormatContext->nb_streams; i++) {
if (avFormatContext->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
audioStreamIndex = i;
break;
}
}
//有些没有音频流,所以这里不用返回
if (audioStreamIndex == -1) {
qDebug() << "find audio stream index error";
} else {
//获取音频流
AVStream *audioStream = avFormatContext->streams[audioStreamIndex];
audioCodec = avcodec_alloc_context3(NULL);
avcodec_parameters_to_context(audioCodec, audioStream->codecpar);
//获取音频流解码器,或者指定解码器
audioDecoder = const_cast<AVCodec *>(avcodec_find_decoder(audioCodec->codec_id));
//audioDecoder = avcodec_find_decoder_by_name("aac");
if (audioDecoder == NULL) {
qDebug() << "audio codec not found";
return false;
}
//打开音频解码器
result = avcodec_open2(audioCodec, audioDecoder, NULL);
if (result < 0) {
qDebug() << "open audio codec error";
return false;
}
QString audioInfo = QString(u8"音频流信息 -> 索引: %1 解码: %2 比特率: %3 声道数: %4 采样: %5")
.arg(audioStreamIndex)
.arg(audioDecoder->name)
.arg(avFormatContext->bit_rate, audioCodec->channels, audioCodec->sample_rate);
qDebug() << audioInfo;
}
- 分配内存
//预分配好内存
avPacket = av_packet_alloc();
avFrame = av_frame_alloc();
avFrame2 = av_frame_alloc();
avFrame3 = av_frame_alloc();
//比较上一次文件的宽度高度,当改变时,需要重新分配内存
if (oldWidth != videoWidth || oldHeight != videoHeight) {
int byte = av_image_get_buffer_size(AV_PIX_FMT_RGB32, videoWidth, videoHeight, 1);
buffer = (uint8_t *) av_malloc(byte * sizeof(uint8_t));
oldWidth = videoWidth;
oldHeight = videoHeight;
}
//定义像素格式
AVPixelFormat srcFormat = AV_PIX_FMT_YUV420P;
AVPixelFormat dstFormat = AV_PIX_FMT_RGB32;
//通过解码器获取解码格式
srcFormat = videoCodec->pix_fmt;
//默认最快速度的解码采用的SWS_FAST_BILINEAR参数,可能会丢失部分图片数据,可以自行更改成其他参数
int flags = SWS_FAST_BILINEAR;
//开辟缓存存储一帧数据
//以下两种方法都可以,avpicture_fill已经逐渐被废弃
//avpicture_fill((AVPicture *)avFrame3, buffer, dstFormat, videoWidth, videoHeight);
av_image_fill_arrays(avFrame3->data, avFrame3->linesize, buffer,
dstFormat, videoWidth, videoHeight, 1);
//图像转换
swsContext = sws_getContext(videoWidth, videoHeight, srcFormat,
videoWidth, videoHeight, dstFormat,
flags, NULL, NULL, NULL);
- 子线程循环对帧数据处理
void FFmpegThread::run() {
// qint64 startTime = av_gettime();
while (!stopped) {
//根据标志位执行初始化操作
if (isPlay) {
bool ret = this->init();
if (!ret) {
emit signal_initFailed();
stopped = !stopped;
break;
}
isPlay = false;
continue;
}
frameFinish = av_read_frame(avFormatContext, avPacket);
if (frameFinish >= 0) {
//判断当前包是视频还是音频
int index = avPacket->stream_index;
if (index == videoStreamIndex) {
frameFinish = avcodec_send_packet(videoCodec, avPacket);
if (frameFinish < 0) {
continue;
}
frameFinish = avcodec_receive_frame(videoCodec, avFrame2);
if (frameFinish < 0) {
continue;
}
if (frameFinish >= 0) {
//将数据转成一张图片
sws_scale(swsContext, (const uint8_t *const *) avFrame2->data, avFrame2->linesize, 0,
videoHeight, avFrame3->data, avFrame3->linesize);
//以下两种方法都可以
//QImage image(avFrame3->data[0], videoWidth, videoHeight, QImage::Format_RGB32);
QImage image((uchar *) buffer, videoWidth, videoHeight, QImage::Format_RGB32);
if (!image.isNull()) {
emit signal_receiveImage(image);
}
usleep(1);
}
#if 0
//延时(不然文件会立即全部播放完)
AVRational timeBase = {1, AV_TIME_BASE};
int64_t ptsTime = av_rescale_q(avPacket->dts, avFormatContext->streams[videoStreamIndex]->time_base, timeBase);
// 微秒
int64_t nowTime = av_gettime() - startTime;
qDebug() << "ptstime:" << ptsTime << "nowTime:" << nowTime;
if (ptsTime > nowTime) {
av_usleep(ptsTime - nowTime);
}
#else
AVRational timeBase = {1, AV_TIME_BASE};
int64_t ptsTime = av_rescale_q(avPacket->dts,
avFormatContext->streams[videoStreamIndex]->time_base,
timeBase);
currentTime = ptsTime;
if (lastTime == 0) {
av_usleep(10 * 1000);
}
if ((currentTime - lastTime) > 1 * 1000 * 1000 || (currentTime - lastTime) < 0) {
av_usleep(10 * 1000);
} else {
av_usleep(currentTime - lastTime);
}
lastTime = currentTime;
#endif
} else if (index == audioStreamIndex) {
//解码音频流,自行处理
}
}
av_packet_unref(avPacket);
av_freep(avPacket);
usleep(1);
}
//线程结束后释放资源
free();
stopped = false;
isPlay = false;
qDebug() << "stop ffmpeg thread";
emit signal_threadOver();
}
- FFmpegWidget封装
- 构造函数
FFmpegWidget::FFmpegWidget(QWidget *parent) : QWidget(parent) {
thread = new FFmpegThread(this);
connect(thread, SIGNAL(signal_receiveImage(QImage)), this, SLOT(updateImage(QImage)));
image = QImage();
connect(thread, &FFmpegThread::signal_initFailed, this, &FFmpegWidget::signal_openVideoFailed);
}
void FFmpegWidget::updateImage(const QImage &image) {
this->image = image;
this->update();
}
- 重写paintEvent
void FFmpegWidget::paintEvent(QPaintEvent *) {
if (image.isNull()) {
return;
}
QPainter painter(this);
#if 0
//image = image.scaled(this->size(), Qt::KeepAspectRatio);
//按照比例自动居中绘制
int pixX = rect().center().x() - image.width() / 2;
int pixY = rect().center().y() - image.height() / 2;
QPoint point(pixX, pixY);
painter.drawImage(point, image);
#else
painter.drawImage(this->rect(), image);
#endif
}
- 启动/停止视频
void FFmpegWidget::open() {
qDebug() << TIMEMS << "open video" << objectName();
clear();
thread->play();
thread->start();
}
void FFmpegWidget::close() {
qDebug() << TIMEMS << "close video" << objectName();
if (thread->isRunning()) {
thread->stop();
thread->quit();
thread->wait(500);
}
QTimer::singleShot(1, this, SLOT(clear()));
}
- Qt调用
在QT中只需要在ui文件中添加一个QWidget，并将这个QWidget部件提升为FFmpegWidget即可，通过调用FFmpegWidget的setUrl()方法设置拉流地址，然后通过open()和close()方法启动和停止视频。
- 源代码
- ffmpeginclude.h
#ifndef FFMPEGINCLUDE_H
#define FFMPEGINCLUDE_H
//为了兼容C和C99标准必须加以下内容(否则编译不能通过)
#ifndef INT64_C
#define INT64_C
#define UINT64_C
#endif
//引入ffmpeg头文件
extern "C" {
#include "libavutil/opt.h"
#include "libavutil/time.h"
#include "libavutil/frame.h"
#include "libavutil/display.h"
#include "libavutil/pixdesc.h"
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/ffversion.h"
#include "libavcodec/avcodec.h"
#include "libswscale/swscale.h"
#include "libswresample/swresample.h"
#include "libavformat/avformat.h"
#include "libavfilter/avfilter.h"
#include "libavfilter/buffersink.h"
#include "libavfilter/buffersrc.h"
#include "libavdevice/avdevice.h"
#if (LIBAVCODEC_VERSION_MAJOR > 56)
#include "libavutil/hwcontext.h"
#endif
}
#include - ffmpeg.h
#ifndef FFMPEG_H
#define FFMPEG_H
#include - ffmpeg.cpp
#include "ffmpeg.h"
FFmpegThread::FFmpegThread(QObject *parent) : QThread(parent) {
setObjectName("FFmpegThread");
buffer = NULL;
avPacket = NULL;
avFrame = NULL;
avFrame2 = NULL;
avFrame3 = NULL;
avFormatContext = NULL;
videoCodec = NULL;
audioCodec = NULL;
swsContext = NULL;
options = NULL;
videoDecoder = NULL;
audioDecoder = NULL;
//初始化注册(注册一次即可)
FFmpegThread::initlib();
}
//初始化(初始化一次即可)
void FFmpegThread::initlib() {
static QMutex mutex;
QMutexLocker locker(&mutex);
static bool isInit = false;
if (!isInit) {
//注册所有设备,主要用于本地摄像机播放支持
#ifdef ffmpegdevice
avdevice_register_all();
#endif
//初始化网络流格式,使用网络流时必须先执行
avformat_network_init();
isInit = true;
qDebug() << TIMEMS << "init ffmpeg lib ok" << " version:" << FFMPEG_VERSION;
}
}
bool FFmpegThread::init() {
//在打开码流前指定各种参数比如:探测时间/超时时间/最大延时等
//设置缓存大小,1080p可将值调大
av_dict_set(&options, "buffer_size", "8192000", 0);
//以tcp方式打开,如果以udp方式打开将tcp替换为udp
av_dict_set(&options, "rtsp_transport", "tcp", 0);
//设置超时断开连接时间,单位微秒,3000000表示3秒
av_dict_set(&options, "stimeout", "3000000", 0);
// ,单位微秒,1000000表示1秒
av_dict_set(&options, "max_delay", "1000000", 0);
//自动开启线程数
av_dict_set(&options, "threads", "auto", 0);
//zerolatency:转码延迟，以牺牲视频质量减少时延
av_dict_set(&options, "tune", "zerolatency", 0);
//打开视频流
avFormatContext = avformat_alloc_context();
int result = avformat_open_input(&avFormatContext, url.toStdString().data(), NULL, &options);
if (result < 0) {
qDebug() << TIMEMS << "open input error" << url;
return false;
}
qDebug() << TIMEMS << "open input:" << url << " " << result;
//释放设置参数
if (options != NULL) {
av_dict_free(&options);
qDebug() << TIMEMS << "free option";
}
//获取流信息
result = avformat_find_stream_info(avFormatContext, NULL);
if (result < 0) {
qDebug() << TIMEMS << "find stream info error";
return false;
}
//----------视频流部分开始,打个标记方便折叠代码----------
if (1) {
videoStreamIndex = av_find_best_stream(avFormatContext,
AVMEDIA_TYPE_VIDEO,
-1,
-1,
const_cast<const AVCodec **>(&videoDecoder),
0);
if (videoStreamIndex < 0) {
qDebug() << TIMEMS << "find video stream index error";
return false;
}
//获取视频流
AVStream *videoStream = avFormatContext->streams[videoStreamIndex];
//获取视频流解码器,或者指定解码器
videoCodec = avcodec_alloc_context3(NULL);
avcodec_parameters_to_context(videoCodec, videoStream->codecpar);
videoDecoder = const_cast<AVCodec *>(avcodec_find_decoder(videoCodec->codec_id));
//videoDecoder = avcodec_find_decoder_by_name("h264_qsv");
if (videoDecoder == NULL) {
qDebug() << TIMEMS << "video decoder not found";
return false;
}
//设置加速解码
videoCodec->lowres = videoDecoder->max_lowres;
videoCodec->flags2 |= AV_CODEC_FLAG2_FAST;
//打开视频解码器
result = avcodec_open2(videoCodec, videoDecoder, NULL);
if (result < 0) {
qDebug() << TIMEMS << "open video codec error";
return false;
}
//获取分辨率大小
videoWidth = videoStream->codecpar->width;
videoHeight = videoStream->codecpar->height;
//如果没有获取到宽高则返回
if (videoWidth == 0 || videoHeight == 0) {
qDebug() << TIMEMS << "find width height error";
return false;
}
QString videoInfo = QString(u8"视频流信息 -> 索引: %1 解码: %2 格式: %3 时长: %4 秒 分辨率: %5*%6")
.arg(videoStreamIndex)
.arg(videoDecoder->name, avFormatContext->iformat->name)
.arg((avFormatContext->duration) / 1000000, videoWidth, videoHeight);
qDebug() << TIMEMS << videoInfo;
}
//----------视频流部分开始----------
//----------音频流部分开始,打个标记方便折叠代码----------
if (1) {
//循环查找音频流索引
audioStreamIndex = -1;
for (uint i = 0; i < avFormatContext->nb_streams; i++) {
if (avFormatContext->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
audioStreamIndex = i;
break;
}
}
//有些没有音频流,所以这里不用返回
if (audioStreamIndex == -1) {
qDebug() << TIMEMS << "find audio stream index error";
} else {
//获取音频流
AVStream *audioStream = avFormatContext->streams[audioStreamIndex];
audioCodec = avcodec_alloc_context3(NULL);
avcodec_parameters_to_context(audioCodec, audioStream->codecpar);
//获取音频流解码器,或者指定解码器
audioDecoder = const_cast<AVCodec *>(avcodec_find_decoder(audioCodec->codec_id));
//audioDecoder = avcodec_find_decoder_by_name("aac");
if (audioDecoder == NULL) {
qDebug() << TIMEMS << "audio codec not found";
return false;
}
//打开音频解码器
result = avcodec_open2(audioCodec, audioDecoder, NULL);
if (result < 0) {
qDebug() << TIMEMS << "open audio codec error";
return false;
}
QString audioInfo = QString(u8"音频流信息 -> 索引: %1 解码: %2 比特率: %3 声道数: %4 采样: %5")
.arg(audioStreamIndex)
.arg(audioDecoder->name)
.arg(avFormatContext->bit_rate, audioCodec->channels, audioCodec->sample_rate);
qDebug() << TIMEMS << audioInfo;
}
}
//----------音频流部分结束----------
//预分配好内存
avPacket = av_packet_alloc();
avFrame = av_frame_alloc();
avFrame2 = av_frame_alloc();
avFrame3 = av_frame_alloc();
//比较上一次文件的宽度高度,当改变时,需要重新分配内存
if (oldWidth != videoWidth || oldHeight != videoHeight) {
int byte = av_image_get_buffer_size(AV_PIX_FMT_RGB32, videoWidth, videoHeight, 1);
buffer = (uint8_t *) av_malloc(byte * sizeof(uint8_t));
oldWidth = videoWidth;
oldHeight = videoHeight;
}
//定义像素格式
AVPixelFormat srcFormat = AV_PIX_FMT_YUV420P;
AVPixelFormat dstFormat = AV_PIX_FMT_RGB32;
//通过解码器获取解码格式
srcFormat = videoCodec->pix_fmt;
//默认最快速度的解码采用的SWS_FAST_BILINEAR参数,可能会丢失部分图片数据,可以自行更改成其他参数
int flags = SWS_FAST_BILINEAR;
//开辟缓存存储一帧数据
//以下两种方法都可以,avpicture_fill已经逐渐被废弃
//avpicture_fill((AVPicture *)avFrame3, buffer, dstFormat, videoWidth, videoHeight);
av_image_fill_arrays(avFrame3->data, avFrame3->linesize, buffer,
dstFormat, videoWidth, videoHeight, 1);
//图像转换
swsContext = sws_getContext(videoWidth, videoHeight, srcFormat,
videoWidth, videoHeight, dstFormat,
flags, NULL, NULL, NULL);
//输出视频信息
//av_dump_format(avFormatContext, 0, url.toStdString().data(), 0);
qDebug() << TIMEMS << "init ffmpeg finsh";
return true;
}
void FFmpegThread::run() {
// qint64 startTime = av_gettime();
while (!stopped) {
//根据标志位执行初始化操作
if (isPlay) {
bool ret = this->init();
if (!ret) {
emit signal_initFailed();
stopped = !stopped;
break;
}
isPlay = false;
continue;
}
frameFinish = av_read_frame(avFormatContext, avPacket);
if (frameFinish >= 0) {
//判断当前包是视频还是音频
int index = avPacket->stream_index;
if (index == videoStreamIndex) {
frameFinish = avcodec_send_packet(videoCodec, avPacket);
if (frameFinish < 0) {
continue;
}
frameFinish = avcodec_receive_frame(videoCodec, avFrame2);
if (frameFinish < 0) {
continue;
}
if (frameFinish >= 0) {
//将数据转成一张图片
sws_scale(swsContext, (const uint8_t *const *) avFrame2->data, avFrame2->linesize, 0,
videoHeight, avFrame3->data, avFrame3->linesize);
//以下两种方法都可以
//QImage image(avFrame3->data[0], videoWidth, videoHeight, QImage::Format_RGB32);
QImage image((uchar *) buffer, videoWidth, videoHeight, QImage::Format_RGB32);
if (!image.isNull()) {
emit signal_receiveImage(image);
}
usleep(1);
}
#if 0
//延时(不然文件会立即全部播放完)
AVRational timeBase = {1, AV_TIME_BASE};
int64_t ptsTime = av_rescale_q(avPacket->dts, avFormatContext->streams[videoStreamIndex]->time_base, timeBase);
// 微秒
int64_t nowTime = av_gettime() - startTime;
qDebug() << "ptstime:" << ptsTime << "nowTime:" << nowTime;
if (ptsTime > nowTime) {
av_usleep(ptsTime - nowTime);
}
#else
AVRational timeBase = {1, AV_TIME_BASE};
int64_t ptsTime = av_rescale_q(avPacket->dts,
avFormatContext->streams[videoStreamIndex]->time_base,
timeBase);
currentTime = ptsTime;
if (lastTime == 0) {
av_usleep(10 * 1000);
}
if ((currentTime - lastTime) > 1 * 1000 * 1000 || (currentTime - lastTime) < 0) {
av_usleep(10 * 1000);
} else {
av_usleep(currentTime - lastTime);
}
lastTime = currentTime;
#endif
} else if (index == audioStreamIndex) {
//解码音频流,自行处理
}
}
av_packet_unref(avPacket);
av_freep(avPacket);
usleep(1);
}
//线程结束后释放资源
free();
stopped = false;
isPlay = false;
qDebug() << TIMEMS << "stop ffmpeg thread";
emit signal_threadOver();
}
void FFmpegThread::setUrl(const QString &url) {
this->url = url;
}
void FFmpegThread::free() {
if (swsContext != NULL) {
sws_freeContext(swsContext);
swsContext = NULL;
}
if (avPacket != NULL) {
av_packet_unref(avPacket);
avPacket = NULL;
}
if (avFrame != NULL) {
av_frame_free(&avFrame);
avFrame = NULL;
}
if (avFrame2 != NULL) {
av_frame_free(&avFrame2);
avFrame2 = NULL;
}
if (avFrame3 != NULL) {
av_frame_free(&avFrame3);
avFrame3 = NULL;
}
if (videoCodec != NULL) {
avcodec_close(videoCodec);
videoCodec = NULL;
}
if (audioCodec != NULL) {
avcodec_close(audioCodec);
audioCodec = NULL;
}
if (avFormatContext != NULL) {
avformat_close_input(&avFormatContext);
avFormatContext = NULL;
}
av_dict_free(&options);
qDebug() << TIMEMS << "close ffmpeg ok";
}
void FFmpegThread::play() {
//通过标志位让线程执行初始化
isPlay = true;
}
void FFmpegThread::pause() {
}
void FFmpegThread::next() {
}
void FFmpegThread::stop() {
//通过标志位让线程停止
stopped = true;
}
//实时视频显示窗体类
FFmpegWidget::FFmpegWidget(QWidget *parent) : QWidget(parent) {
thread = new FFmpegThread(this);
connect(thread, SIGNAL(signal_receiveImage(QImage)), this, SLOT(updateImage(QImage)));
image = QImage();
connect(thread, &FFmpegThread::signal_initFailed, this, &FFmpegWidget::signal_openVideoFailed);
}
FFmpegWidget::~FFmpegWidget() {
close();
}
void FFmpegWidget::paintEvent(QPaintEvent *) {
if (image.isNull()) {
return;
}
QPainter painter(this);
#if 0
//image = image.scaled(this->size(), Qt::KeepAspectRatio);
//按照比例自动居中绘制
int pixX = rect().center().x() - image.width() / 2;
int pixY = rect().center().y() - image.height() / 2;
QPoint point(pixX, pixY);
painter.drawImage(point, image);
#else
painter.drawImage(this->rect(), image);
#endif
}
void FFmpegWidget::updateImage(const QImage &image) {
this->image = image;
this->update();
}
void FFmpegWidget::setUrl(const QString &url) {
thread->setUrl(url);
}
void FFmpegWidget::open() {
qDebug() << TIMEMS << "open video" << objectName();
clear();
thread->play();
thread->start();
}
void FFmpegWidget::pause() {
thread->pause();
}
void FFmpegWidget::next() {
thread->next();
}
void FFmpegWidget::close() {
qDebug() << TIMEMS << "close video" << objectName();
if (thread->isRunning()) {
thread->stop();
thread->quit();
thread->wait(500);
}
QTimer::singleShot(1, this, SLOT(clear()));
}
void FFmpegWidget::clear() {
image = QImage();
update();
}