Top "Codec" questions

Codec is an implementation of compression and decompression of digital data streams and signals in different scales.

mp4 atom - How to discriminate the audio codec? Is it AAC or MP3?

I'm working on a mp4 container parser but I'm going crazy trying to recognize the audio codecs of the streams. …

audio mp4 codec
Default ffmpeg codec when nothing is specified

If I import a file to use with ffmpeg but dont specify anything about the codecs of any of the …

ffmpeg codec
Planar YUV420 data layout

In my project I use OpenH264 codec, which is said to output data in the YUV 4:2:0 planar format. After decoding …

c++ image-processing h.264 codec yuv
decode 7-bit GSM

I found this post on how to encode ascii data to 7-bit GSM character set, how would I decode 7-bit …

python encode codec gsm
NV12 to RGB24 conversion code in C++

Does anyone know how to convert Intel Media SDK (version: Media SDK 2010) H.264 video frame decoded output NV12 format to …

c++ winapi intel codec color-codes
v4l2 video capture example

this is my first post here and I hope I can find some help I'm working on embedded linux on …

embedded-linux codec mpeg yuv v4l2
MJPEG Stream Information

I am receiving a MJPEG Stream from my camera. When I look at the video data with an hex editor …

stream jpeg codec mjpeg ip-camera
Illegal State Exception when calling MediaCodec.configure()

I get the IllegalStateException on MediaCodec.configure() line, I'm trying to record audio using MediaCodec. This only occur on some …

android audio-recording codec android-mediacodec
Which audio format can be recorded and played back by iPhone and Android?

I am designing an app that can record short audio files on iPhone and Android that can be played back …

android iphone codec
How to know the bit depth of a mp3 file?

A MP3 file header only contain the sample rate and bit rate, so the decoder can't figure out the bit …

audio mp3 codec