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Execute ffmpeg to Crop Audio in Qt - Stack Overflow
https://stackoverflow.com/questions/15200373/execute-ffmpeg-to-crop-audio-in-qt
I want to create an application which can be used to crop audio files using Qt. I've successfully run ffmpeg via command line to do this using the following command: ffmpeg -t 30 -i C:\\test.mp3 -acodec copy C:\\test2.mp3. Then I tried to do this using Qt and my code below seems to work, but I can't find the output file (test2.mp3).
Qt and ffmpeg, how to work with sound | Qt Forum
https://forum.qt.io/topic/113778/qt-and-ffmpeg-how-to-work-with-sound
QAudioRecorder is for recording, not playing. You should look at QAudioOutput. Or you can use SDL as the Tutorial suggest. But the synchronization of audio and video playing is very complicated. I'm recently working on video playing with ffmpeg in Qt, too. Eventually instead of writing all the playing process myself, I choose to use QtAV.
11.QT-ffmpeg+QAudioOutput实现音频播放器 - 诺谦 - 博客园
https://www.cnblogs.com/lifexy/archive/2020/09/10/13648442.html
而在QT中,提供了QMediaPlayer类可以支持解封装,但是该类的解码协议都是基于平台的,如果平台自身无法播放,那么QMediaPlayer也无法播放.有兴趣的朋友可以去试试. 所以接下来,我们使用ffmpeg+QAudioOutput来实现一个简单的音频播放器. 在此之前,需要学习: 2.AVFormatContext和 ...
Qt Documentation | Home
https://doc.qt.io/archives/qtextended4.4/ffmpeg.html
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Qt audio and video development 6-ffmpeg decoding ...
https://www.programmerall.com/article/2382972751/
Qt audio and video development 6-ffmpeg decoding processing. tags: Qt-audio and video development. I. Introduction. Using ffmpeg decoding is an indispensable skill for all video surveillance developers, a gadget that cannot be bypassed, and it can even be said to be an essential skill for all audio and video developers. FFmpeg is a set of open ...
QtMultimedia, FFMpeg, Gstreamer: comparing multimedia ...
https://www.ulduzsoft.com/2016/06/qtmultimedia-ffmpeg-gstreamer-comparing-multimedia-frameworks/
The applications were open-source, free and cross-platform, and therefore they needed the multimedia frameworks which would be open-source, free and cross-platform. Thus during those years I have used the following frameworks Qt native multimedia framework. First it was Phonon (Qt4) and then QmediaPlayer/Qt5, FFMpeg, and Gstreamer.
[Qt5] play the audio decoded by ffmpeg using QAudioOutput
https://programming.vip/docs/qt5-play-the-audio-decoded-by-ffmpeg-using-qaudiooutput.html
[Qt5] play the audio decoded by ffmpeg using QAudioOutput [Qt5] play the audio decoded by ffmpeg using QAudioOutput Use QAudioOutput to play the audio decoded by ffmpeg Written above, it is not recommended to play media audio with QAudioOutput, because it is not powerful enough and difficult to control. SDL is recommended. Audio data format
05 FFMPEG Qt Video Player Audio Video Synchronization
https://www.fatalerrors.org/a/05-ffmpeg-qt-video-player-audio-video-synchronization.html
05 FFMPEG Qt Video Player Audio Video Synchronization. Development environment: Windows 10, Qt 5.13.1, ffmpeg 4.2.2. The last few descriptions describe how ffmpeg decoded video is displayed on the interface, and the decoded audio is played by SDL. This article combines two functions, using audio-video synchronization.
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