September 2008 - ffmpeg-user - lists.ffmpeg.org

Forcing format, crop and aspect ratio
by sbmmm＠hotmail.com 01 Sep '08

01 Sep '08

I've been Googling questions in order to understand some basic parameter settings and I haven't been able to find a clear answer. (Actually, some more advanced settings make sense to me thanks to the link provided by Stefano Sabatini http://thread.gmane.org/gmane.comp.video.ffmpeg.user/16235/focus=16283 ) I am deciding between a few different scenarios. My problems are as follows. With a Player screen size at 576 x 432, which is 4:3, I will have source video uploaded in different aspect ratios. 1. If I use -s 576x432 will that force it? What will happen if I use the -s but I don't use the -aspect parameter? 2. If I use -aspect 4:3, what will happen to a source video file with a 16:9 aspect ratio? Will it automatically scale to 576 x 324 (16:9) because 576 is the defining dimension? 3. What if I want the screen size to be 576 x 432, regardless of the source aspect ratio, but I want both 16:9 and 4:3 sizes to fully fit in the 4:3 screen. Do I cropleft and cropright for the 16:9, but leave the 4:3? I want the ouput to show the "middle" of 16:9 and the 4:3. Can both be done? Regards, Steve _________________________________________________________________ See what people are saying about Windows Live. Check out featured posts. http://www.windowslive.com/connect?ocid=TXT_TAGLM_WL_connect2_082008

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Convert to img seq. START number...
by simon.lord＠xtranormal.com 01 Sep '08

01 Sep '08

1) I had a directory of 517 images 2) I also have a video clip of 200 frames that I would like to export to that same directory The burning question is: How do I tell FFMPEG to start from number 00518 so that it doesn't overwrite the files that are already there. It is imperative that the sequencing from the existing frames be preserved.

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Build windows x64 ffmpeg
by martin.dulovits＠woogieworks.at 01 Sep '08

01 Sep '08

I succeeded in building ffmpeg but if i try to enable libswscale i get lots of assembler errors. I have disabled mmx but this doesnt help. Anyone any ideas ?? -Wcast-qual -Wwrite-strings -Wtype-limits -O3 -fno-math-errno -fno-signed-zeros -fPIC -DPIC -c -o libswscale/rgb2rgb.o libswscale/rgb2rgb.c libswscale/rgb2rgb.c:1: warning: -fPIC ignored for target (all code is position independent) D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s: Assembler messages: D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:7125: Error: `(%rcx,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:7126: Error: `8(%rcx,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:7143: Error: `(%rax,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:7144: Error: `8(%rax,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:7457: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:7580: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:7702: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:7850: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:7873: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:8943: Error: suffix or operands invalid for `mov' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:9002: Error: suffix or operands invalid for `mov' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:9522: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10022: Error: `(%rbx,%r11d,4)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10023: Error: `(%rcx,%r11d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10024: Error: `(%r9,%r11d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10036: Error: `(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10037: Error: `8(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10039: Error: `8(%rbx,%r11d,4)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10043: Error: `16(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10044: Error: `24(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10046: Error: `16(%rbx,%r11d,4)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10051: Error: `32(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10052: Error: `40(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10054: Error: `24(%rbx,%r11d,4)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10058: Error: `48(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:10059: Error: `56(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:13198: Error: `(%rcx,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:13205: Error: `32(%rcx,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:13206: Error: `(%rcx,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:13207: Error: `8(%rcx,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:13216: Error: `(%rax,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:13217: Error: `8(%rax,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:13530: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:13653: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:13775: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:13923: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:13946: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:15131: Error: suffix or operands invalid for `mov' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:15190: Error: suffix or operands invalid for `mov' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:15689: Error: suffix or operands invalid for `cmp' D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16186: Error: `32(%rbx,%r11d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16187: Error: `32(%rcx,%r11d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16188: Error: `32(%r9,%r11d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16189: Error: `(%rbx,%r11d,4)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16190: Error: `(%rcx,%r11d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16191: Error: `(%r9,%r11d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16203: Error: `(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16204: Error: `8(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16206: Error: `8(%rbx,%r11d,4)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16210: Error: `16(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16211: Error: `24(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16213: Error: `16(%rbx,%r11d,4)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16218: Error: `32(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16219: Error: `40(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16221: Error: `24(%rbx,%r11d,4)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16225: Error: `48(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:16226: Error: `56(%rdi,%r11d,8)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:19365: Error: `(%rcx,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:19372: Error: `32(%rcx,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:19373: Error: `(%rcx,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:19374: Error: `8(%rcx,%r10d)' is not a valid base/index expression D:/Root/USERPR~1/ADMINI~1/AppData/Local/Temp/cccgJ1IW.s:19391: Error: `(%rax,%r10d)' is not a valid base/index cheers dulo

1 0

How to add a new stream
by khenyh＠gmail.com 01 Sep '08

01 Sep '08

Hi, I first tried to write a little programm to do what I want to do, but maybe it is possible to do this with ffmpeg executable. My problem is : I have got a programm that records video screens. The problem is that when the programm crashes, there is not time information in the file. I've tried ffmpeg -i source.avi dest.avi, but the avi file contains two video streams and one audio stream. And the result of this command is a file with correct duration, but one video stream is missing. Is there any option to set ? Nicolas Krieger

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Unsubscribe
by Jayadev_Atchula＠satyam.com 01 Sep '08

01 Sep '08

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3 2

Duration is N/A in demuxed video's video stream
by brunnera＠jasmin.hu 01 Sep '08

01 Sep '08

Hi, I've got a video file, with these informations provided by FFmpeg: /usr/bin/ffmpeg -i original.mpg FFmpeg version SVN-r13582, Copyright (c) 2000-2008 Fabrice Bellard, et al. configuration: ... libavutil version: 49.7.0 libavcodec version: 51.58.0 libavformat version: 52.16.0 libavdevice version: 52.0.0 libavfilter version: 0.0.0 built on Jul 7 2008 21:21:16, gcc: 4.3.1 Input #0, mpeg, from 'original.mpg': Duration: 00:01:47.23, start: 2.099989, bitrate: 4219 kb/s Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3], 4000 kb/s, 29.97 tb(r) Stream #0.1[0x1c0]: Audio: mp2, 44100 Hz, stereo, 192 kb/s when I've extracted the video stream from a video file with command: /usr/bin/ffmpeg -i original.mpg -an -vcodec copy -y video.original.mpg and retrieved the information again, I got this: /usr/bin/ffmpeg -i original.mpg ... Input #0, mpeg, from 'video.original.mpg': Duration: N/A, start: 0.524000, bitrate: N/A Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3], 4000 kb/s, 29.97 tb(r) Why FFmpeg can't get the duration of the video stream, or how can I get all these informations about the video using FFmpeg? Thanks, Adam Brunner

1 0

%04d.jpg from multiple directories...
by simon.lord＠xtranormal.com 01 Sep '08

01 Sep '08

I'm not exactly sure if there's a proper term for what I'm trying to do, I hope so because it's driving me nuts... 1) I have two directories. 2) Directory 1 has 286 jpg images with a WAV (main clip) 3) Directory 2 has 44 jpg images with a WAV (post-roll) The sample above is real, however, the values are hardcoded. The total of frames for the main clip and the post-roll clip are variables. For the moment I'm simply trying to get the images from both directories into a single mp4 using the following: > ffmpeg -aspect 4:3 -vframes 330 -r 15 -i images/%04d.jpg -i postroll/%04d.jpg output.mp It runs fine but it completely ignores the images from the second directory. In the command line I set the vframes to the total of both directories but the output from ffmpeg clearly says 286: > frame= 286 fps=237 q=7.4 Lsize= 994kB time=19.07 bitrate= 426.9kbits/s If someone would be so kind as to let me know where I'm going wrong I'd really appreciate it. :P

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