Stack Overflow
Stack Overflow

Questions tagged [multimedia]

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

474 questions
6
votes
3 answers

How to play audio from a real-time stream

I have a program which produces audio signals which supposed to be played simultaneously. For this, I play an interval of 100 ms of audio stream in each 100 ms period. But I have undesired signals in beginning and ending of each 100 ms audio stream…
hossein
  • 61
  • 1
  • 1
  • 2
5
votes
2 answers

Changing speed of a sound file

I'm looking to change the speed of a sound file, but am at a loss as to how to accomplish it. I'm assuming that some type of interpolation has to take place in the case of slowing it down, but am unsure how to accomplish a speed up - perhaps an…
user21293
  • 6,439
  • 11
  • 44
  • 57
5
votes
1 answer

How can i get the application code created by gst-launch or gstreamer pipeline editor?

see if i have made one application like below by gst-launch commnad gst-launch -v filesrc location=ed_hd.mkv ! matroskademux ! vorbisdec ! audioconvert ! audioresample ! autoaudiosink when ever i type this on my console application start to work…
Jeegar Patel
  • 26,264
  • 51
  • 149
  • 222
5
votes
5 answers

possible to create ebook programmatically?

I am investigating whether it is possible to generate an ebook, say, a Kindle book, programmatically. are there any libraries, open source or proprietary? in particular, for python.
akonsu
  • 28,824
  • 33
  • 119
  • 194
5
votes
4 answers

Which framework to use for media

I have a project wherein video has to be recorded and played back with certain features, like play , pause, reset and has to be synchronised with some other process. Now the other process is already developed in Java and I have to embed the video…
chai
  • 1,483
  • 5
  • 21
  • 30
5
votes
1 answer

Capture multimedia keys from a web site?

Is there a way to capture multimedia keys from a web site?
user55510
  • 61
  • 4
5
votes
1 answer

How to get the master volume in windows xp?

In Windows XP, with Delphi, how to get the master volume? I know I can set up and down sending key strokes with keybd_event(VK_VOLUME_UP, 1, 0, 0); and keybd_event(VK_VOLUME_DOWN, 1, 0, 0);, but I don't know how to get the actual value of the…
eKek0
  • 23,005
  • 25
  • 91
  • 119
5
votes
2 answers

Does android support APIs for implementing RTP,RTSP for VoIP and PTT Project?

I am going to make a PTT project on Android. Could you tell me how deep Android supports Voice and Multimedia API (such as RTP,RTSP,VoIP) for developers?
Alireza Asadi
  • 78
  • 1
  • 7
5
votes
1 answer

Why does Silverlight provides webcam and microphone support without any encoding API?

In the list of new features in Silverlight 4 you will find following: Webcam and microphone to allow sharing of video and audio for instance for chat or customer service applications. Silverlight captures an audio stream as raw pcm. So how would…
Alexander Zwitbaum
  • 4,776
  • 4
  • 48
  • 55
5
votes
3 answers

What is the best way to play video file in Delphi?

I need to play video file (using installed codecs) and get some file info (such as frame rate and length).
Astronavigator
  • 2,021
  • 2
  • 24
  • 45
5
votes
3 answers

How to efficiently scale up video frame using NDK

I am doing an Android project about dealing with video frame, I need to handle every frame before display it. The process includes scaling up frames from 1920x1080 to 2560x1440 resolution, color space conversion and some necessary image processing…
NicotIne
  • 155
  • 1
  • 10
5
votes
3 answers

How to programmatically control the volume of my pc?

I have a keyboard without music keys, that for turn up and down the volume, play, stop, etc. of music in my PC. If you don't understand, this is my keyboard and this isn't. I want to implement, in Windows and in Delphi or C#, a keyboard hook to…
eKek0
  • 23,005
  • 25
  • 91
  • 119
5
votes
5 answers

Windows MIDI streaming and SysEx

I am using the ancient Windows Multimedia API (midiXyz functions from WinMM.dll) from C#. After opening a Midi Out device/port in non-streaming mode (midiOutOpen), sending SysEx with (midiOutLongMsg) works fine. After opening a Midi Out device/port…
MillKa
  • 413
  • 4
  • 10
5
votes
1 answer

Hardware video decoding on Android using GStreamer

I have to implement a GStreamer pipeline on Android which will get a live mpegts stream from a mpegts server on a linux machine(also implemented through GStreamer). Now, I have a Samdung Galaxy Tab2, 5113, which has Android-4.1.2-JellyBean and API…
Yusuf Husainy
  • 625
  • 8
  • 19
5
votes
1 answer

How to play sound in Qt5 (Qt4 migration)?

In Qt4 I used to use QT += multimedia phonon //... #include //... Phonon::MediaObject *mediaObject = Phonon::createPlayer(Phonon::NoCategory, Phonon::MediaSource(QUrl("./assets/audio/window_appear.wav"))); // "\"" +…
myWallJSON
  • 9,110
  • 22
  • 78
  • 149
1 2
3
…
31 32