Skip to main content
18 events
when toggle format what by license comment
Apr 28, 2016 at 15:44 comment added mrana Thanks so much for your help, may Allah (God) bless you. if i see any other problem regarding this i will come back to you.
Apr 28, 2016 at 15:41 comment added mrana i used -pix_fmt yuv422p and it looks the right size. :)
Apr 28, 2016 at 15:37 comment added mrana It works wow! But it looks someting is wrong? because, my input+ output = 64.8+64.8 = ~130MB but the output file is 92.2MB?
Apr 28, 2016 at 15:27 comment added Gyan As an output option !!
Apr 28, 2016 at 15:25 comment added mrana 'ffmpeg -pix_fmt yuv420p -i am_crop.y4m -i am_crop.y4m -filter_complex "[0:v:0]pad=iw*2:ih:color=white[bg]; [bg][1:v:0]overlay=w+10" left-right.y4m' It says "Option pixel_format not found." -------<br> and does not work! i used both yuv420p and yuv422p (as my other command used 422)
Apr 28, 2016 at 15:20 comment added Gyan Add -pix_fmt yuv420p as an output option.
Apr 28, 2016 at 15:04 comment added mrana yes i did and applied the earlier code to make pair ffmpeg -i am_crop.y4m -i am_crop.y4m -filter_complex "[0:v:0]pad=iw*2:ih:color=white[bg]; [bg][1:v:0]overlay=w+10" left-right.y4m it gives me the following error: dropbox.com/s/c879mk9hq7n36pf/…
Apr 28, 2016 at 14:56 comment added Gyan It's the same format but with a header. Just change the extension in step 4.
Apr 28, 2016 at 14:52 comment added mrana how can i do that? also does it lossless? i do not want any loss before the step #5
Apr 28, 2016 at 14:47 comment added Gyan So, in step 4, output to .y4m instead of .yuv then no need to supply input params.
Apr 28, 2016 at 14:43 comment added mrana With mp4 all those steps are easy, but i am facing problems working with YUV videos
Apr 28, 2016 at 14:41 comment added mrana I got all YUV raw videos from here: ftp.ivc.polytech.univ-nantes.fr/IRCCyN_IVC_1080i_Database/… my working steps are 1. unzip 2. de-interlace 3. down sample from 1920x1080 to 960x540 4. then crop 480x270 5. make side-by-side 6. then convert to mp4. Now i am having problem with step #5
Apr 28, 2016 at 14:36 comment added Gyan You don't need to know the bitrate. How are the YUVs generated?
Apr 28, 2016 at 14:34 comment added mrana How i can know the bit-rate, frame-rate and ratio of a YUV video?
Apr 28, 2016 at 13:57 comment added Gyan Sorry, you need to supply input params since YUV is a raw stream. Use the framerate of your input.
Apr 28, 2016 at 13:56 history edited Gyan CC BY-SA 3.0
added YUV params.
Apr 28, 2016 at 13:48 comment added mrana i get the same error like before: Picture size 0x0 is invalid input.yuv: Invalid argument
Apr 28, 2016 at 13:40 history answered Gyan CC BY-SA 3.0