Reason: mp4 appears to be a patented AV format. Node-webkit do not support it ... It seems to be.
Workaround:
Install the Chrome browser locally, install the directory (example: c:\Google\Chrome\Application\37.0.2062.103), and locate the Ffmpegsumo.dll file.
Copy (Ffmpegsumo.dll) and replace the Ffmpegsumo.dll in the Node-webkit directory.
Note: Since the chromium version is numerous, the chromium version of the downloaded Chrome browser will be c
, for example, I want to turn the original video code rate nearly 20000, my hard drive brother said this is too high, so I sacrificed some of the quality of 6000, the general turn anime words 1000-2000 enough.
Bit rate pattern: average bit rate and 2 times coding is my common two modes, 2 times coding quality is better than average mode, but time consuming probably increases about 30%. (HD recommendation 2 times code)
5, Step 5 set Audio parameters
Audio format and encoder you can
This example describes how PHP uses Memcoder to turn video into a MP4 format. Share to everyone for your reference. The implementation methods are as follows:
Copy Code code as follows:
ConvertTo ("Some-input-video.avi", "Output.mp4");
function ConvertTo ($input, $output) {
echo "Converting $input to $output $command = "MEncoder $input-o $output-af volume=10-aspect 16:9-of AVI-NOODML-OVC x264-x264encopts bitrate=500:level _IDC=41:BFRAMES=3:F
This article illustrates how PHP implements a video to MP4 and get a video preview. Share to everyone for your reference. The implementation methods are as follows:
Copy Code code as follows:
Flv_convert_get_thumb (' Input.avi ', ' output.jpg ', ' OUTPUT.OGM ');
Code provided and updated by Steve of Phpsnaps! Thanks
Accepts:
1:the Input Video File
2:path to Thumb jpg
3:path to transcoded MPEG?
function Flv_convert_get_thumb
FFmpeg has very powerful features including video capture, video format conversion, video capture, video watermarking, etc. The use of these features on the Internet is mostly based on the command line. This is not conducive to our in-depth study of customized FFmpeg, in the future I will write a series of code to implement these features of the tutorial for everyone to learn. The first part of this series I am going to write on the implementation of Windows, after the partial write porting to A
http://blog.csdn.net/gavinr/article/details/7183499
1. Get data ffmpeg read the H264 data in MP4, and do not directly get Nalu, the file does not store 0x00000001 separator. The following figure is the data in Packet.data As you can see from the diagram, there is no delimiter (0x00000001) at the beginning of the data in packet, nor is it 0x65, 0x67, 0x68, 0x41, and so on, so it is certain that this is not a standard Nalu. In fact, the first 4 charact
Code stream encapsulation using open Source Library FFmpeg
The H264 stream is written to H264 buffer via the function h264buff_write (), and mux_thread the received stream into the MP4 file.
Here I use a separate thread encapsulation stream is to solve the recording process of the cycle of the problem, or can not be separate pull thread.
Type declaration
/*---------------for muxing--------------*/
#ifndef int64_c
#define INT64_C (c) (C # # LL)
#defi
Add in the web. xml file
docx application/vnd.openxmlformats-officedocument.wordprocessingml.doc ument XLSX application/vnd. openxmlformats-officedocument.spreadsheetml.sheet pptx application/vnd.
Such as me. Google and Baidu spent half a day searching for free PPT-to-PDF tools. Or are you tired of looking for Adobe Acrobat's cracked version or registration code?
I tried a variety of keyword combinations and downloaded software from various
Copy codeThe Code is as follows: // Due to limited js levels, don't like it or not. It's okay to check it out. video is a new control in html5. You can check it out.
When playing a video stream using HLS technology, you first convert the video to a TS slice and a m3u8 playlist, using FFmpeg to do the conversion (the low version ffmpeg does not support direct turning, and can now be converted to TS and
Download the isubtitle we want to use in the Mac App Store
[optional] See if the movie is already embedded with soft captions: Open the movie with QuickTime and see if there are any captions in the menu bar-show-subtitles
Get the plug-in
first, find Tencent video cache directory
Tip: If you already know the cached directory for Tencent video, skip to step two.
1. Click on the menu button in the upper right corner and select "Settings" to open the "Download Settings" interface.
Download the relevant documentation from here:http://standards.iso.org/ittf/PubliclyAvailableStandards/index.html One, box overall view
The following image is excerpted from: http://www.cnblogs.com/haibindev/archive/2011/10/17/2214518.html
second,
First in the Minf there is a VMHD and SMHD, then VMHD represents the video, SMHD represents the audio
And then in the Stsz,
Stsz Boxxx D8 size of stsz,207a:stszXX 00:versionXX 00:sample-sizeXX 1C F1:sample-count00 00 86 24 (starting from this,
Audio and video storage using the MPEG4IP library interface
Mp4writesample Write-Audio Video frame (requires precise control of timestamp, time stamp can use relative value, that is, the current frame timestamp minus the timestamp of the previous
Let me go and finally solve this problem.
When loading a video file in the android simulator, it will prompt: the video cannot be played! Therefore, I found the error log under logcat, which has the following lines of error
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