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Questions tagged [multimedia]

Multimedia refers to content that uses a combination of different content forms.

474 questions
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10 answers

What is the best way to store media files on a database?

I want to store a large number of sound files in a database, but I don't know if it is a good practice. I would like to know the pros and cons of doing it in this way. I also thought on the possibility to have "links" to those files, but maybe this…
David Ameller
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Consumer closed input channel or an error occur

I am developing an Android application and it opens MIC source and records the audio from the microphone. I have another separate thread running on background and it clears the ArrayList that holds audio inputs from the microphone periodically…
codereviewanskquestions
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Android API for detecting new media from inbuilt camera & mic

Is there any elegant way in the Android API for detecting new media when it is written to the device? I’m mainly interested in photos taken by the camera, video taken by the camera and audio recorded from the mic. My current thinking is to…
Declan Shanaghy
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5 answers

Getting started with audio programming

I'm looking to build some compression interfaces for windows audio, and I was wondering if anybody might know of some tips/tricks? I'd like to build my own software equalizer that will function with the whole windows audio system, not just a…
user67000
17
votes
2 answers

Android : How to change Playback Rate of music using OpenSL ES

I am working on a music player in which I need to change tempo (playback speed of music) without changing the pitch. I'm not able to find any native android class to do so. I tried SoundPool but it doesn't work with large music files and it also…
Vipul Purohit
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15
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How to edit or add video metadata of "rotation" in mp4?

I want put rotation information into my mp4 video file but I have no idea about this. Is there any program that I can add "rotation" metadata? It would be OK if there's the way to edit video content with hexa editor.
Seoul
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14
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6 answers

Does DirectX 11 support .NET?

Can I use DirectX 11 from C# app? Need to use DirectSound from WPF application. .NET 4 W7 x64
Boppity Bop
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14
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6 answers

How can I create a video from a directory of images in C#?

I have a directory of bitmaps that are all of the same dimension. I would like to convert these bitmaps into a video file. I don't care if the video file (codec) is wmv or avi. My only requirement is that I specify the frame rate. This does not…
JP Richardson
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14
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6 answers

How to calculate GOP size of a file H264

I have a h264 file that extract from YUV format using SVC software. Now, I want to caculate size of each GOP in the h264 file. We know that size of GOP is the distance between two nearest I frame. here. Could you suggest to me how to cacluate the…
user3677103
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What are good JS libraries for game dev? (HTML5)

If i decide to write a simple game both text and graphical (2d) what libs may i use? Assuming we are using a HTML5 compatible browser. The main things i can think of Rendering text on screen Animating sprites (using images/css) Input (capturing the…
user34537
12
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6 answers

What's the latest and greatest alternative to Flash?

I recently accepted a part time gig revamping a set of multimedia/presentations that are used in med education courses. I have been asked to research the future of web and smartphone multimedia platforms. Basically, whats new. Currently, we use…
atomSmasher
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12
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4 answers

Java API for SRT subtitles

Is there any Java API for SRT subtitles ?
firas
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12
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3 answers

midiOutOpen on Windows 10 using Microsoft GS Wavetable Synth fails

I have an application that relies on the in built Microsoft GS Wavetable Synth. It has worked flawlessly on Windows XP, Vista, 7, 8 and 8.1. While the first call to midiOutOpen on Windows 10 works, subsequent calls result in error code 1, meaning…
fhevol
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4 answers

How to find duration of a video file using mediainfo in seconds or other formats?

How can I find duration of a video file in miliseconds i.e. in integer in deterministic way. I have used ffprobe to get the duration but it doesn't give duration for all file formats.
Harit Vishwakarma
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How to convert pixels to gray scale?

Ok, I am using Processing which allows me to access pixels of any image as int[]. What I now want to do is to convert the image to gray-scale. Each pixel has a structure as shown below: ...........PIXEL............ [red | green | blue |…
An SO User
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