How can I convert from the decoded image(output of h264 decoder)to DIB?
The color format of decoded image is RGB24.
Hi Relay21,
Are you looking at the ipp-samplesaudio-video-codecsapplicationumc_h264_dec_con, right?
The decoder can output RGB24 raw data directly. (frame by frame)
Usage:
umc_h264_dec_con.exe [Options] InputFile [OutputYUVFile]
there are also optional command line switches:
| command line switch |
description |
| -t |
number of threads to limit (If num is equals 0 then decoder creates optimal number of threads based on the number of CPU on the host. Zero value used by default.) |
| -f |
number of frames to limit. (Unlimited number of frames will be decoded by default.) |
| -f |
select output color format |
About convertthem to DIB, do you mean that toadd BMP file header to each frame, then save them frame by frame?
You mayadd code to create a DIB imageformat asthe sampleipp-samplesimage-processingimage-processing-mfcippiImage.cpp, then copy the RGB24 raw data to the DIB image.
or use some readyDIB image class provided by some software, for exampleOpenCV Image class
img=cvCreateImage(),
open the decoder RGB24 file. read data frame by frame, suppose thedata are indataBuffer
ippicopy (dataBuffer to img->imageData(
cvSaveImage("img.bmp", img);
Regards,
Ying
