Re: [gentoo-user] Re: off topic: rotating a video
On Mon, Feb 16 2015, David Haller wrote: Hello, On Mon, 16 Feb 2015, gottl...@nyu.edu wrote: I built and tried mplayer. Again not rotated. I ran it from the terminal. Below is the output up to when I killed it [..] VO: [xv] 1920x1080 = 1920x1080 Planar YV12 FWIW: if it's just for watching the vid, try mplayer -vf rotate=1 foo.mp4 That's rotating 90deg clockwise, see 'man mplayer', search for 'rotate', second hit: [..] -vf [..] rotate[=0-7] Rotates the image by 90 degrees and optionally flips it. For values between 4-7 rotation is only done if the movie geometry is portrait and not landscape. 0Rotate by 90 degrees clockwise and flip (default). 1Rotate by 90 degrees clockwise. 2Rotate by 90 degrees counterclockwise. 3Rotate by 90 degrees counterclockwise and flip. When using '-ovc copy', mencoder does not (as usual) seem to apply this filter. HTH, -dnh This worked (as did -flip for 180 degrees)! Thanks to everyone for their help. allan
[gentoo-user] Re: off topic: rotating a video
On 16/02/15 22:51, gottl...@nyu.edu wrote: I apologize in advance for this off topic query. I took a video with my phone (galaxy note 4) and via google+ uploaded it to my mail laptop. It is an mp4 and plays fine on both the phone and the labtop except that it is sideways. I was surprised that neither the player on the phone nor the player on the laptop (totem, I run gnome) seems to offer a rotation option. Am I missing a slightly hidden option or do I need another program. I do not do video editing and do no plan to in the near future. You can change the metadata of the mp4 file without re-encoding it. This requires that the player you play the video in actually respects that metadata though! mplayer and mpv respect it. Your phone's player might not. You need ffmpeg for this (media-video/ffmpeg). ffmpeg -i yourvideo.mp4 -c copy -metadata:s:v:0 rotate=90 output.mp4 This tells media players to rotate the video 90 degrees clockwise. If you want to rotate 90 degrees counter-clockwise, use rotate=270 instead. I don't know what the command is if you're using libav instead, but I suspect it has to be something similar.
Re: [gentoo-user] Re: off topic: rotating a video
On Mon, Feb 16 2015, Nikos Chantziaras wrote: On 17/02/15 01:39, gottl...@nyu.edu wrote: On Mon, Feb 16 2015, Nikos Chantziaras wrote: On 16/02/15 22:51, gottl...@nyu.edu wrote: I apologize in advance for this off topic query. I took a video with my phone (galaxy note 4) and via google+ uploaded it to my mail laptop. It is an mp4 and plays fine on both the phone and the labtop except that it is sideways. I was surprised that neither the player on the phone nor the player on the laptop (totem, I run gnome) seems to offer a rotation option. Am I missing a slightly hidden option or do I need another program. I do not do video editing and do no plan to in the near future. You can change the metadata of the mp4 file without re-encoding it. This requires that the player you play the video in actually respects that metadata though! mplayer and mpv respect it. Your phone's player might not. Not worried about the phone. I won't touch the file there and will probably delete it when I get the one right on the laptop. You need ffmpeg for this (media-video/ffmpeg). That I have (1.2.6-r1, highest stable). ffmpeg -i yourvideo.mp4 -c copy -metadata:s:v:0 rotate=90 output.mp4 I did this command but the result is not rotated (my player is totem). Try mpv or mplayer. If that shows it rotated, then it's totem ignoring the metadata. I built and tried mplayer. Again not rotated. I ran it from the terminal. Below is the output up to when I killed it Is it possible I did the ffmpeg command wrong? thanks, allan newlap tmp # mplayer r90.mp4 MPlayer SVN-r36370 (Gentoo)-4.8.3 (C) 2000-2013 MPlayer Team MMX2 supported but disabled Playing r90.mp4. libavformat version 54.63.104 (external) libavformat file format detected. [h264 @ 0x7ff80716e920]Warning: not compiled with thread support, using thread emulation [aac @ 0x7ff80716e920]Warning: not compiled with thread support, using thread emulation [lavf] stream 0: video (h264), -vid 0 [lavf] stream 1: audio (aac), -aid 0, -alang eng VIDEO: [H264] 1920x1080 24bpp 29.917 fps 16996.4 kbps (2074.8 kbyte/s) Clip info: major_brand: isom minor_version: 512 compatible_brands: isomiso2avc1mp41 encoder: Lavf54.63.104 Load subtitles in ./ == Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family libavcodec version 54.92.100 (external) [h264 @ 0x7ff80716e920]Warning: not compiled with thread support, using thread emulation Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264) == == Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders [aac @ 0x7ff80716e920]Warning: not compiled with thread support, using thread emulation AUDIO: 48000 Hz, 2 ch, floatle, 250.1 kbit/8.14% (ratio: 31257-384000) Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio)) == AO: [alsa] 48000Hz 2ch floatle (4 bytes per sample) Starting playback... Movie-Aspect is undefined - no prescaling applied. VO: [xv] 1920x1080 = 1920x1080 Planar YV12 A: 7.3 V: 7.3 A-V: 0.000 ct: 0.033 0/ 0 70% 1% 0.6% 0 0 Exiting... (Quit) newlap tmp #
[gentoo-user] Re: off topic: rotating a video
On 17/02/15 01:39, gottl...@nyu.edu wrote: On Mon, Feb 16 2015, Nikos Chantziaras wrote: On 16/02/15 22:51, gottl...@nyu.edu wrote: I apologize in advance for this off topic query. I took a video with my phone (galaxy note 4) and via google+ uploaded it to my mail laptop. It is an mp4 and plays fine on both the phone and the labtop except that it is sideways. I was surprised that neither the player on the phone nor the player on the laptop (totem, I run gnome) seems to offer a rotation option. Am I missing a slightly hidden option or do I need another program. I do not do video editing and do no plan to in the near future. You can change the metadata of the mp4 file without re-encoding it. This requires that the player you play the video in actually respects that metadata though! mplayer and mpv respect it. Your phone's player might not. Not worried about the phone. I won't touch the file there and will probably delete it when I get the one right on the laptop. You need ffmpeg for this (media-video/ffmpeg). That I have (1.2.6-r1, highest stable). ffmpeg -i yourvideo.mp4 -c copy -metadata:s:v:0 rotate=90 output.mp4 I did this command but the result is not rotated (my player is totem). Try mpv or mplayer. If that shows it rotated, then it's totem ignoring the metadata.
Re: [gentoo-user] Re: off topic: rotating a video
On Mon, Feb 16 2015, Nikos Chantziaras wrote: On 16/02/15 22:51, gottl...@nyu.edu wrote: I apologize in advance for this off topic query. I took a video with my phone (galaxy note 4) and via google+ uploaded it to my mail laptop. It is an mp4 and plays fine on both the phone and the labtop except that it is sideways. I was surprised that neither the player on the phone nor the player on the laptop (totem, I run gnome) seems to offer a rotation option. Am I missing a slightly hidden option or do I need another program. I do not do video editing and do no plan to in the near future. You can change the metadata of the mp4 file without re-encoding it. This requires that the player you play the video in actually respects that metadata though! mplayer and mpv respect it. Your phone's player might not. Not worried about the phone. I won't touch the file there and will probably delete it when I get the one right on the laptop. You need ffmpeg for this (media-video/ffmpeg). That I have (1.2.6-r1, highest stable). ffmpeg -i yourvideo.mp4 -c copy -metadata:s:v:0 rotate=90 output.mp4 I did this command but the result is not rotated (my player is totem). There was a warning issued. Below is the command I used and the on-screen output. The resulting mp4 file plays fine but is not rotated. What did I do wrong? thanks again, allan newlap tmp # ffmpeg -i orig.mp4 -c copy -metadata:s:v:0 rotate=90 r90.mp4 ffmpeg version 1.2.6 Copyright (c) 2000-2014 the FFmpeg developers built on Feb 3 2015 14:21:53 with gcc 4.8.3 (Gentoo 4.8.3 p1.1, pie-0.5.9) configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++ --ar=x86_64-pc-linux-gnu-ar --optflags='-march=native -O2 -pipe' --extra-cflags='-march=native -O2 -pipe' --extra-cxxflags='-march=native -O2 -pipe' --disable-static --enable-gpl --enable-postproc --enable-avfilter --enable-avresample --disable-stripping --enable-version3 --disable-indev=v4l2 --disable-indev=oss --disable-indev=jack --disable-outdev=oss --enable-bzlib --disable-runtime-cpudetect --disable-debug --disable-doc --disable-gnutls --enable-hardcoded-tables --enable-iconv --enable-network --disable-openssl --enable-ffplay --disable-vaapi --disable-vdpau --enable-zlib --enable-libvo-aacenc --disable-libvo-amrwbenc --enable-libmp3lame --disable-libfdk-aac --disable-libaacplus --disable-libfaac --disable-libtheora --disable-libtwolame --enable-libx264 --enable-libxvid --disable-libcdio --disable-libiec61883 --disable-libdc1394 --dis libavutil 52. 18.100 / 52. 18.100 libavcodec 54. 92.100 / 54. 92.100 libavformat54. 63.104 / 54. 63.104 libavdevice54. 3.103 / 54. 3.103 libavfilter 3. 42.103 / 3. 42.103 libswscale 2. 2.100 / 2. 2.100 libswresample 0. 17.102 / 0. 17.102 libpostproc52. 2.100 / 52. 2.100 [h264 @ 0x122e340] Warning: not compiled with thread support, using thread emulation [aac @ 0x122f070] Warning: not compiled with thread support, using thread emulation Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'orig.mp4': Metadata: major_brand : isom minor_version : 0 compatible_brands: isom3gp4 creation_time : 2015-02-08 21:30:20 Duration: 00:05:44.94, start: 0.00, bitrate: 17240 kb/s Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 16996 kb/s, 29.91 fps, 29.92 tbr, 90k tbn, 180k tbc Metadata: rotate : 90 creation_time : 2015-02-08 21:30:20 handler_name: VideoHandle Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 250 kb/s Metadata: creation_time : 2015-02-08 21:30:20 handler_name: SoundHandle Output #0, mp4, to 'r90.mp4': Metadata: major_brand : isom minor_version : 0 compatible_brands: isom3gp4 encoder : Lavf54.63.104 Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1920x1080, q=2-31, 16996 kb/s, 29.91 fps, 90k tbn, 90k tbc Metadata: handler_name: VideoHandle creation_time : 2015-02-08 21:30:20 rotate : 90 Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 250 kb/s Metadata: creation_time : 2015-02-08 21:30:20 handler_name: SoundHandle Stream mapping: Stream #0:0 - #0:0 (copy) Stream #0:1 - #0:1 (copy) Press [q] to stop, [?] for help frame= 7166 fps=0.0 q=-1.0 size= 504481kB time=00:03:59.68 bitrate=17242.6kbitsframe=10311 fps=0.0 q=-1.0 Lsize= 726141kB time=00:05:44.93 bitrate=17245.2kbits/s video:715245kB audio:10529kB subtitle:0 global headers:0kB muxing overhead 0.050533% newlap tmp # ffmpeg -i orig.mp4 -c copy -metadata:s:v:0 rotate=90 r90.mp4
[gentoo-user] Re: off topic: rotating a video
On 17/02/15 03:30, gottl...@nyu.edu wrote: I built and tried mplayer. Again not rotated. I ran it from the terminal. Below is the output up to when I killed it Is it possible I did the ffmpeg command wrong? Sorry, that was my fault. mplayer doesn't support this :-P mpv does. If you want to rotate the video so that all players work, you need to re-encode it. You will lose some quality doing this. And how to encode properly is a huge can of worms to open here (especially since I'm not an expert on this myself.) Quick and dirty way: ffmpeg -i in.mp4 -vf transpose=1 out.mp4 This will probably produce crap. For a better quality encoding, do: ffmpeg -i in.mp4 -vf transpose=1 -vcodec libx264 out.mp4 For the latter to work, you need to enable the x264 USE flag of ffmpeg.
Re: [gentoo-user] Re: off topic: rotating a video
Hello, On Mon, 16 Feb 2015, gottl...@nyu.edu wrote: I built and tried mplayer. Again not rotated. I ran it from the terminal. Below is the output up to when I killed it [..] VO: [xv] 1920x1080 = 1920x1080 Planar YV12 FWIW: if it's just for watching the vid, try mplayer -vf rotate=1 foo.mp4 That's rotating 90deg clockwise, see 'man mplayer', search for 'rotate', second hit: [..] -vf [..] rotate[=0-7] Rotates the image by 90 degrees and optionally flips it. For values between 4-7 rotation is only done if the movie geometry is portrait and not landscape. 0Rotate by 90 degrees clockwise and flip (default). 1Rotate by 90 degrees clockwise. 2Rotate by 90 degrees counterclockwise. 3Rotate by 90 degrees counterclockwise and flip. When using '-ovc copy', mencoder does not (as usual) seem to apply this filter. HTH, -dnh -- Wash: [..] this landings is gonna get pretty interesting Mal: Define 'interesting.' Wash: Oh, God, oh, God, we're all gonna die? Mal: This is the captain. We have a little problem with our entry sequence, so we may experience some slight turbulence and then explode. -- Firefly Serenity
