「English」(2006/01/22 (日) 10:43:37) の最新版変更点
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raw2qt264 is a command line encoder using QuickTime H.264 codec for Mac OS X. raw2qt264 reads raw video from ffmpeg via pipe. You can specify pass count and bit rate.
-[[Binary>http://members3.jcom.home.ne.jp/jacketplugin/raw2qt264.zip]]
-[[Source code>http://members3.jcom.home.ne.jp/jacketplugin/raw2qt264.source.zip]]
raw2qt264.source.zip is Xcode project, so you can modify and build easily.
2006.1.21 Universal Binary. New Intel iMas is fater 2.5 times than iMac G5.
#comment
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*How to use
% raw2qt264 Pass Kbps rawCommand outFile.mov
rawCommand is a line command to output yuv4mpegpipe to stdout.
-Convert inFile.mpg to outFile.mov, pass count is 2 and bit rate is 1000Kbps.
% raw2qt264 2 1000 "ffmpeg -i inFile.mpg -vcodec rawvideo -f yuv4mpegpipe -" outFile.mov
-Deinterlace, scale to 640x480 and crop to 90 % using ffmpeg
% raw2qt264 2 1000 "ffmpeg -i inFile.mpg -deinterlace -s 640x480 -croptop 24 -cropbottom 24 -cropleft 32 -cropright 32 -vcodec rawvideo -f yuv4mpegpipe -" outFile.mov
----
*Memo
・renice by itself.
setpriority(PRIO_USER, 0, 10);
・Compress setting is in createCompressionSession(). You can find setting items in following header.
/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/QuickTime.framework/Versions/A/Headers/ImageCompression.h
の、Properties of compression sessions options objects.
・Key frame rate is currenty 300.
// Set the maximum key frame interval, also known as the key frame rate.
err = ICMCompressionSessionOptionsSetMaxKeyFrameInterval(sessionOptions, 300);
MaxPartialSyncFrameInterval, AllowFrameTimeChanges, DataRateLimits(Hard limit) are set to default.
Based on following Apple's sample code.
http://developer.apple.com/samplecode/CaptureAndCompressIPBMovie/CaptureAndCompressIPBMovie.html
QuickTime Session API documents
http://developer.apple.com/qa/qa2005/qa1450.html
http://developer.apple.com/qa/qa2005/qa1455.html
http://developer.apple.com/qa/qa2005/qa1460.html
http://developer.apple.com/qa/qa2005/qa1456.html
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raw2qt264 is a command line encoder using QuickTime H.264 codec for Mac OS X. raw2qt264 reads raw video from ffmpeg via pipe. You can specify pass count and bit rate.
-[[Binary>http://members3.jcom.home.ne.jp/jacketplugin/raw2qt264.zip]]
-[[Source code>http://members3.jcom.home.ne.jp/jacketplugin/raw2qt264.source.zip]]
raw2qt264.source.zip is Xcode project, so you can modify and build easily.
2006.1.21 Universal Binary. New Intel iMas is fater 2.5 times than iMac G5.
----
*Comment
#comment
----
*How to use
% raw2qt264 Pass Kbps rawCommand outFile.mov
rawCommand is a line command to output yuv4mpegpipe to stdout.
-Convert inFile.mpg to outFile.mov, pass count is 2 and bit rate is 1000Kbps.
% raw2qt264 2 1000 "ffmpeg -i inFile.mpg -vcodec rawvideo -f yuv4mpegpipe -" outFile.mov
-Deinterlace, scale to 640x480 and crop to 90 % using ffmpeg
% raw2qt264 2 1000 "ffmpeg -i inFile.mpg -deinterlace -s 640x480 -croptop 24 -cropbottom 24 -cropleft 32 -cropright 32 -vcodec rawvideo -f yuv4mpegpipe -" outFile.mov
----
*Memo
・renice by itself.
setpriority(PRIO_USER, 0, 10);
・Compress setting is in createCompressionSession(). You can find setting items in following header.
/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/QuickTime.framework/Versions/A/Headers/ImageCompression.h
の、Properties of compression sessions options objects.
・Key frame rate is currenty 300.
// Set the maximum key frame interval, also known as the key frame rate.
err = ICMCompressionSessionOptionsSetMaxKeyFrameInterval(sessionOptions, 300);
MaxPartialSyncFrameInterval, AllowFrameTimeChanges, DataRateLimits(Hard limit) are set to default.
Based on following Apple's sample code.
http://developer.apple.com/samplecode/CaptureAndCompressIPBMovie/CaptureAndCompressIPBMovie.html
QuickTime Session API documents
http://developer.apple.com/qa/qa2005/qa1450.html
http://developer.apple.com/qa/qa2005/qa1455.html
http://developer.apple.com/qa/qa2005/qa1460.html
http://developer.apple.com/qa/qa2005/qa1456.html
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