0f59a88b32
Moved/renamed: webrtc/modules/video_processing/main/interface -> webrtc/modules/video_processing/include webrtc/modules/video_processing/main/source/* -> webrtc/modules/video_processing webrtc/modules/video_processing/main/test/unit_test -> webrtc/modules/video_processing/test No downstream code seems to use this module. BUG=webrtc:5095 TESTED=git cl try -c --bot=android_compile_rel --bot=linux_compile_rel --bot=win_compile_rel --bot=mac_compile_rel --bot=ios_rel --bot=linux_gn_rel --bot=win_x64_gn_rel --bot=mac_x64_gn_rel --bot=android_gn_rel -m tryserver.webrtc R=pbos@webrtc.org, stefan@webrtc.org Review URL: https://codereview.webrtc.org/1410663004 . Cr-Commit-Position: refs/heads/master@{#10697}
46 lines
1.1 KiB
Matlab
46 lines
1.1 KiB
Matlab
function [Y,U,V] = readYUV420file(filename, width, height)
|
|
% [Y,U,V] = readYUVfile(filename, width, height)
|
|
|
|
fid = fopen(filename,'rb');
|
|
if fid==-1
|
|
error(['Cannot open file ' filename]);
|
|
end
|
|
|
|
% Number of pixels per image
|
|
nPx=width*height;
|
|
|
|
% nPx bytes luminance, nPx/4 bytes U, nPx/4 bytes V
|
|
frameSizeBytes = nPx*1.5;
|
|
|
|
% calculate number of frames
|
|
fseek(fid,0,'eof'); % move to end of file
|
|
fileLen=ftell(fid); % number of bytes
|
|
fseek(fid,0,'bof'); % rewind to start
|
|
|
|
% calculate number of frames
|
|
numFrames = floor(fileLen/frameSizeBytes);
|
|
|
|
Y=uint8(zeros(height,width,numFrames));
|
|
U=uint8(zeros(height/2,width/2,numFrames));
|
|
V=uint8(zeros(height/2,width/2,numFrames));
|
|
|
|
[X,nBytes]=fread(fid, frameSizeBytes, 'uchar');
|
|
|
|
for k=1:numFrames
|
|
|
|
% Store luminance
|
|
Y(:,:,k)=uint8(reshape(X(1:nPx), width, height).');
|
|
|
|
% Store U channel
|
|
U(:,:,k)=uint8(reshape(X(nPx + (1:nPx/4)), width/2, height/2).');
|
|
|
|
% Store V channel
|
|
V(:,:,k)=uint8(reshape(X(nPx + nPx/4 + (1:nPx/4)), width/2, height/2).');
|
|
|
|
% Read next frame
|
|
[X,nBytes]=fread(fid, frameSizeBytes, 'uchar');
|
|
end
|
|
|
|
|
|
fclose(fid);
|