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H264info |
h264info allows you to edit H264/AVC files to change settings such as 3:2 pulldown, framerate and AVC level.
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Free software   Released:20090413 Size:210KB |
9.0 (N/A) 1 votes Similar tools |
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Latest version: 0.26 test (April 13, 2009) Download sites: Download from author site Windows Sections/Browse similar tools: Codec/Video Identifiers, Other useful tools Alert me! when this software has been updated. |
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Version history:
Release Name: h264info alpha 0026 View entire changelog Notes: Allows you to see nal packet info of a .es h264 stream. parts of source rewritten from mpeg4ip package under the Mozilla Public License. Therefore this package is released under the Mozilla Public License. This is very alpha. the pulldown routine is very untested. Where sei data is missing and needs to be added, some is data from a reference mpeg4 stream and may be incorrect. I am releasing this in its current form as i havent had time to work on it but spent enough time on it that I want to get it out there. The code is bad and un optimized (slow). Have Fun. x264 is protected under the GNU GPL general public license Changes: source as I left it on or abouts april 08. 0026 this version was produced from a backup of the source dated early april. when compiled it was labeled as version .23. As such it is missing anything ive done in .24 and .25. some advances but more importantly some fixes. So its really a test version (since im too lazy to test it) fixed - changed cpb/dpb calcs to proper reliance on pts/dts. any input streams with odd layout (open gop with leading b-frames for example) will probably result in improper calcs (at least the initial b-frames). that is a rare case however so shouldnt be an issue. added - There is a new setting that only matters if pulldown ISNT being used and the original file has b-pyramid. you must tick this B-pyramid option so the PTS can be adjusted. if that option needs to be set and it isnt, the program will warn you when it encounters a situation where PTS is less than DTS. If anyone has had issues with b-pyramid streams, this should help. this also is not a 'lite' version so it will be slow. please use as a test version. not for production.
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Due to lack of documentation, I thought I would leave this comment stating the switches of h264info.exe as of alpha 21 or later. Check the changelog at alpha 18 where he mentions command line. Running h264info.exe from command line with no switches will open the program normally. The switches are CASE-sensitive! There CANNOT be a space between the switch and argument, if an argument is to be specified. If you specify any of the switches, you MUST specify the input and output files or it will fail. Quotes are allowed but not required (unless filename/path has spaces). Switches can be specified with the '-' or '/' or '\' or '?' character (seems like any symbol works) The default for all the switches, except input file and output file, is to get the information from the input file. Here are the valid switches that were found in the source code: -i"inputPathandFile" (the input file with path if needed)example: h264info.exe -imovie.264 -o"outputPathandFile" (the output file with path)example: h264info.exe -omovie.new.264 -f"FrameRate" (specify framerate) Must be 25, 29.97, 30, 50, 59.94, 60, or 23.976 -a"AspectRatio" (specify aspect ratio) Know options are 16:9,4:3, 1:1, 1, 2, 3, 4, 5, 14, or 15 Options 1-5, 14 and 15 are H264 Presets that are built in: 1 signifies 1:1 Square 2 signifies 4:3 PAL 3 signifies 4:3 NTSC 4 signifies 16:9 PAL 5 signifies 16:9 NTSC 14 signifies 16:9 without horizontal overscan 1440x1080 15 signifies 16:9 without horizontal overscan 1280x1080 -l"Level" (specify the H264 Level) Known options are 1.0, 1b, 1.1, 1.2, 1.3, 2, 2.1, 2.2, 3, 3.1, 3.2, 4, 4.1, 4.2, 5, or 5.1 -w"Width" (specify the width of the video) I believe the units are pixels -h"Height" (specify the height of the video) I believe the units are pixels -b"MaxBitrate" (specify the maximum bitrate of the video) The units are kilobits per second -n"NumberReferenceFrames" (specify the number of frames between reference frames) For example "h264info.exe -n13" means display a full frame every 13 frames Marvingj explained it well in his post: http://forum.videohelp.com/topic329321.html#1702627 -3 (enables 3:2 pulldown) -r (disables 3:2 pulldown) -2 (enables HD->BD Keep FPS) Quoted from the changelog, "HD to BR mode. It doesnt change the fps. just fixes gaps in frame num and a couple other params to make a hd stream work as a bluray stream. with this frame rate changes and thereby timing changes not needed. eliminates need for a 2-pass mode for accurate timing." -p (enables Add Picture Structure) -e (disables Write PPS every picture, default is enabled) Hope this helps. I had a whole series of files that were 720x576p and the aspect ratio was stuck at 5/4 this is the only tool that would allow me to correct it using -a"4" switch. Thanks to command line I was able to start a batch file and walk away.
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