![]() button 2 Toggle OSD states: none / seek / seek + timer / seek + timer + total time. up and down Seek forward/:backward 1 minute. joystick control left and right Seek backward/:forward 10 seconds. button 5 and button 6 Decrease/:increase volume. ![]() mouse control button 3 and button 4 Seek backward/:forward 1 minute. (The following keys are only valid if teletext support is enabled during compilation: They are used for controlling TV teletext.) X Switch teletext on/:off. keypad 7 Return to nearest menu (the order of preference is: chapter->title->root). (The following keys are only valid if you compiled with dvdnav support: They are used to navigate the menus.) keypad 8 Select button up. (The following keys are only valid if you compiled with TV or DVB input support and will take precedence over the keys defined above.) h and k Select previous/:next channel. (The following keys are only valid if GUI support is compiled in and will take precedence over the keys defined above.) ENTER Start playing. PREVIOUS and NEXT Seek backward/:forward 1 minute. (The following keys are valid if you have a keyboard with multimedia keys.) PAUSE Pause. (The following keys are valid only when using the sdl video output driver.) c Cycle through available fullscreen modes. command + f Toggle fullscreen (also see -fs). command + 2 Resize movie window to double its original size. command + 1 Resize movie window to its original size. (The following keys are valid only when using the quartz or macosx video output driver.) command + 0 Resize movie window to half its original size. (The following keys are valid only when using a hardware accelerated video output (xv, (x)vidix, (x)mga, etc), the software equalizer (-vf eq or -vf eq2) or hue filter (-vf hue).) 1 and 2 Adjust contrast. D (-vo xvmc, -vf yadif, -vf kerndeint only) Activate/deactivate deinterlacer. ! and Seek to the beginning of the previous/next chapter. S (-vf screenshot only) Start/stop taking screenshots. s (-vf screenshot only) Take a screenshot. i (-edlout mode only) Set start or end of an EDL skip and write it out to the given file. x and z Adjust subtitle delay by +/- 0.1 seconds. a Toggle subtitle alignment: top / middle / bottom. y and g Step forward/backward in the subtitle list. d Toggle frame dropping states: none / skip display / skip decoding (see -framedrop and -hardframedrop). o Toggle OSD states: none / seek / seek + timer / seek + timer + total time. w and e Decrease/:increase pan-and-scan range. TAB (MPEG-TS only) Cycle through the available programs. # (DVD, MPEG, Matroska, AVI and libavformat only) Cycle through the available audio tracks. _ (MPEG-TS, AVI and libavformat only) Cycle through the available video tracks. ( and ) Adjust audio balance in favor of left/:right channel. ![]() + and – Adjust audio delay by +/- 0.1 seconds. Pressing once will pause movie, every consecutive press will play one frame and then go into pause mode again (any other key unpauses). p / SPACE Pause (pressing again unpauses). HOME and END next/:previous playtree entry in the parent list INS and DEL (ASX playlist only) next/:previous alternative source. ENTER Go forward in the playlist, even over the end. backspace Reset playback speed to normal. Mplayer Halve/double current playback speed. If you have any comments, please send them to work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License, unless explicitly mentioned in the article.Mplayer file1 If you want to rotate clockwise instead of anticlockwise change rotate=2 to rotate=1. mov some of the sound wasn’t synchronised well after rotating, which was easily fixed by this option -demuxer mov. More for my own records than for anybody else, here’s the command I used: $ mencoder -vf rotate=2 -o output.avi -oac pcm -ovc lavc input.movĪs my input file was a. Luckily mencoder, which comes with the mplayer package, has got a few tricks up its sleeve. Kdenlive can do it but it ends up being awkwardly stretched and I couldn’t figure out how to unstretch it. However one thing I didn’t know how to do was how to rotate the video by 90 degrees. I must say I’m surprised at how fast this was all accomplished and kudos to all those developers who created these apps. Filming was done with a camera, sequencing was done by Kdenlive (I’ve previously only had experience with Blender’s VSE and I must say I was very happy with this new application), and the noise-stripping was done with Audacity. I was recently doing some video editing work where the workflow was something like this: film in portrait, transfer to computer, rotate videos by 90 degrees, sequence together several videos, strip out background noise from entire video. Rotate a video by 90 degrees with mencoder Rotate a video by 90 degrees with mencoder
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