video

问题 How can I get a MP4's codec information in JavaScript so that I can check if the browser supports it? const audioCodec = '';//<---?? exmaple: "mp4a.40.2" const videoCodec = '';//<---?? example: "avc1.42e01e" const video = document.getElementById('video'); const mimeCodec = 'video/mp4; codecs="' + audioCodec + ', ' + videoCodec + '"'; if (!('MediaSource' in window) || !MediaSource.isTypeSupported(mimeCodec)) { console.error('Unsupported MIME type or codec: ', mimeCodec); } 回答1: There is no

问题 In visual community 2015 I have a c++ project. In the cpp file top I have #include "stdafx.h" #include "VideoCaptureFilterSample.h" #include "VideoCaptureFilterSampleDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #endif I also set when entering the project properties > VC++ Directories I added this directory in include: C:\Program Files %28x86%29\Microsoft SDKs\Windows\v7.1\Samples\multimedia\directshow\baseclasses The problem is when I type in my code this: hr = CoCreateInstance(CLSID

问题 In visual community 2015 I have a c++ project. In the cpp file top I have #include "stdafx.h" #include "VideoCaptureFilterSample.h" #include "VideoCaptureFilterSampleDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #endif I also set when entering the project properties > VC++ Directories I added this directory in include: C:\Program Files %28x86%29\Microsoft SDKs\Windows\v7.1\Samples\multimedia\directshow\baseclasses The problem is when I type in my code this: hr = CoCreateInstance(CLSID

问题 In visual community 2015 I have a c++ project. In the cpp file top I have #include "stdafx.h" #include "VideoCaptureFilterSample.h" #include "VideoCaptureFilterSampleDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #endif I also set when entering the project properties > VC++ Directories I added this directory in include: C:\Program Files %28x86%29\Microsoft SDKs\Windows\v7.1\Samples\multimedia\directshow\baseclasses The problem is when I type in my code this: hr = CoCreateInstance(CLSID

问题 In visual community 2015 I have a c++ project. In the cpp file top I have #include "stdafx.h" #include "VideoCaptureFilterSample.h" #include "VideoCaptureFilterSampleDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #endif I also set when entering the project properties > VC++ Directories I added this directory in include: C:\Program Files %28x86%29\Microsoft SDKs\Windows\v7.1\Samples\multimedia\directshow\baseclasses The problem is when I type in my code this: hr = CoCreateInstance(CLSID

问题 i have videos with multiple audio tracks. i want to play the video and want change audio tracks from video. Is there any way to make this in html or there is html supported player for this? 回答1: There is an API for it, but it's not very supported. However, there is a plugin for video.js called videojs-audio-tracks, but it still uses the audioTracks API, which isn't supported by Chrome, and needs manual enabling in Firefox. 回答2: If you want to grab the audio track from an html5 video you can

问题 i have videos with multiple audio tracks. i want to play the video and want change audio tracks from video. Is there any way to make this in html or there is html supported player for this? 回答1: There is an API for it, but it's not very supported. However, there is a plugin for video.js called videojs-audio-tracks, but it still uses the audioTracks API, which isn't supported by Chrome, and needs manual enabling in Firefox. 回答2: If you want to grab the audio track from an html5 video you can

问题 I'm searching for a way to check if a video file is corrupted. I'm using cv2 (OpenCV for python) to load the video. If the video file is corrupt, I would like to skip the file and move on to the next one. I found this stackoverflow question and therefore tried this: try: vid = cv2.VideoCapture(corrupt_video_file) except cv2.error as e: print(e) except: print('error') but I still receive the following error: [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1b2d000] moov atom not found Unable to stop the stream:

问题 I am trying to take two videos and put them together into one video. However, when I run my code, I get this error when decoding/encoding the second video: Application provided invalid, non monotonically increasing dts to muxer in stream 0 When the code finishes, the first video is completely fine, but the second video is not. The best result that I have been able to produce is where the second half of the second video comes right after the first video. The funny thing is, the audio is

问题 I am trying to take two videos and put them together into one video. However, when I run my code, I get this error when decoding/encoding the second video: Application provided invalid, non monotonically increasing dts to muxer in stream 0 When the code finishes, the first video is completely fine, but the second video is not. The best result that I have been able to produce is where the second half of the second video comes right after the first video. The funny thing is, the audio is