i am working in a project which target it to convert the video formats, audio formats .. encoding stuffs, where sequential images and sound are mixed up and converted as video. Is this possible via ruby back-end ? I am really looking forward to work with ruby for this so i want to know before starting that is this even possible with ruby or even better if there is already library or framwork for this task ?
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I am working on a V4L2 camera driver.The webcam taking number of sequence of image files.Now I want to convert it into video (mp4) file.How it is possible using FFMPEG/GSTREAM using pure c source code instead of ubuntu terminal command ?
GStreamer can be used to write applications using C. There are application guides available on their documentation site. But you need few extra topics related GObject as well to start using the framework.
I would recommend to go through their documentation site.
https://gstreamer.freedesktop.org/documentation/tutorials/index.html?gi-language=c
It is not that hard if you read through the documentation and they have lots of plugins available to to achieve quite lots of things related to audio/video processing.
Yes,I know there is no exe video,but there is screen recording software that save the videos as SWF or EXE for better compression ratio (as they say )
for swf it won't be a problem since there is a lot of swf readers out there,
But for exe it can be problem for a lot of reasons
like i can't read it on other platforms except for windows
can't upload it online
can't edit it
and also i don't trust executable files
So how can i convert those executables videos to AVI (or any other format ) without having to execute the file on my machine
In either case, the trouble you're having is that you are not working with an actual video. You are working with an executable file that is playing a series of images. It's not the same thing as an actual video stream that uses CODECs that can be converted.
So, there is really no way to convert that, short of doing some sort of screen capture of the video playing back.
I wanted to know if there is a way to convert regular mp4 to a fragmented mp4 via javascript. (like mp4box does) Is it efficient enough (not suppose to be a complicated task)? did anyone write something like this?
to make it harder, can it be on the fly? meaning I will not download the whole mp4 from the server but download in parts and convert it into fragments compatible with fragmented mp4 and mpeg-dash - I'm trying to overcome to problem to not have to use 2 different file types to play a video or do mp4box on all my library in advance.
Regardless, is it possible to convert from h.264 compatible files with different containers (mov, flv etc.) to fragmented without a server? meaning do it in the browser with javascript somehow?
appreciate the help,
Yug
I am working on something similar (which lead me to here) but no clue so far. However, below is my finding:
Broadway:
https://github.com/mbebenita/Broadway
The idea is you may write a C/C++ using FFMPEG source library, then use Emscripten to compile your C/C++ coding into Javascript. I yet start working with this method, not sure this will work or not. If you did do let me know.
Can anyone suggest me webplayer which can play MP3 files in Firefox browser?
I tried jPlayer, however it needs ogg files. I tried converting MP3 to OGA using FFMPEG, however, even the generated file is not being played in JPlayer.
Is there any alternate player which can play MP3 files in Firefox.
I don't want to use Flash.
..alternate player which can play MP3 files in Firefox.
Combine these 3 for an answer.
Java Sound for the ability to play audio.
The MP3 plug-in SPI of JMF, to supply support for MP3, which Java Sound does not support by default.
Applet - to embed that ability in a web page.
Note
I am pretty sure there are easy ways to embed sound in web pages that does not require Java, or requires plug-ins that have higher usage (like Flash). If there is not something custom you wish to do, I recommend investigating alternatives.
This question arises out of a combination of this being my first time working with video and unfamiliarity with Macs. Basically I'm finding it difficult to figure out how to play a video (within a QWidget, or otherwise) using any standard format, e.g. avi, mpeg, mov, etc. In particular,
QMovie::supportedFormats() gives me only .gif and .mng, but I need to use standard formats. Is there a way to increase the number of supported formats?
Phonon requires the presence of a 'backend' which the user has to implement himself. I looked to see if I could somehow do this with Quicktime, but I couldn't get the application to launch--and anyway I didn't really see how to do that. Also, Phonon looks pretty heavyweight, I'd like to avoid it if I could.
While there are plenty of avi (et al.) players floating around on the web, I think it's probably unlikely I'd be able to use them--I need to start, stop, and change the playback speed of videos programmatically i.e. through my C++ program.
I'm not sure why this should be so hard--working with images in Qt is a snap by comparison. So: What's a good way to play videos from within a C++/Qt program?
Stop what you are doing right now: Phonon is the past, Qt Mobility is the future.
After you download, compile and install Qt Mobility, check the examples: videowidget and videographicsitem, located at: qt-mobility-opensource-src-1.2.0/examples/
They pretty much answer all your questions.