Re: [FFmpeg-user] How can I determine if a 10bit videofile has full 10bit video data or 8bit (+ 2bits zeros) data

Thank you, Dave! As I guess, this commandline is just working on linux, right? I tried it on windows but: ffmpeg -i I:\_10bit_PERFORMANCE_TESTS\analog_tape_records\10bit_v210_captured_via_SDI-8bit.mov -c:v rawvideo -f rawvideo - | xxd -c 2 -b 'xxd' is not recognized as an internal or

Re: [FFmpeg-user] How can I determine if a 10bit videofile has full 10bit video data or 8bit (+ 2bits zeros) data

Hello Dave, I tried it on ubuntu. It works. But, can you explain me: Why it is the last 2 bits of the first byte? Shouldnt it be the first 2 bits of the last byte? In my understanding, 8 bit are 8 digits - first byte should be always full. (?) But maybe this only is for RGB correct and not

Re: [FFmpeg-user] How to scale watermark proportionally to width and height of video frame?

How to scale watermark proportionally video frame size (to width and to height of video frame)? Now I use the following command: ffmpeg -i input.mkv -i logo.png -filter_complex

[FFmpeg-user] FFMPEG for encoding to Multichannel ALAC

Hi Folks, I am trying to generate multichannel ALAC content using FFMPEG but somehow is seem to be getting only up to stereo. Is this a limitation of FFMPEG or am i doing something incorrectly. ffmpeg -i pcmfile_48k_16bit_5.1.wav -acodec alac -ac 6 out.m4a Thanks.

Re: [FFmpeg-user] FFMPEG for encoding to Multichannel ALAC

Hi Rashed, On Mon, Jan 19, 2015 at 17:22:18 +0530, Rashed wrote: I am trying to generate multichannel ALAC content using FFMPEG but somehow is seem to be getting only up to stereo. Is this a limitation of FFMPEG or am i doing something incorrectly. ffmpeg -i pcmfile_48k_16bit_5.1.wav

Re: [FFmpeg-user] X264 and Smooth Text

Haven't tried two-pass encode. But I can't quite use 2 pass encoding in my usage scenario since I'm capturing live. On Mon, Jan 19, 2015 at 6:04 PM, Werner Robitza werner.robi...@gmail.com wrote: On Mon, Jan 19, 2015 at 7:49 AM, Robert Nagy rona...@gmail.com wrote: However, at the first 1-2

Re: [FFmpeg-user] X264 and Smooth Text

On Mon, Jan 19, 2015 at 7:49 AM, Robert Nagy rona...@gmail.com wrote: However, at the first 1-2 seconds of the video the text looks quite a bit worse and then pops to better quality. Is there some setting I can use so that x264 uses a higher bitrate at the beginning of a clip as to avoid the

Re: [FFmpeg-user] Image Conversion TIFF JPEG with yuv422 chroma subsampling

On Mon, Jan 19, 2015 at 6:05 PM, Andrea Rastelli a.raste...@rbw-cgi.it wrote: $ ffmpeg.exe -pix_fmt yuv422p -i in.tif out.jpg -q 1 Set -q before specifying the output filename. -pix_fmt specified before -i will try to read the input with said format. That doesn't make a lot of sense here.

[FFmpeg-user] Image Conversion TIFF JPEG with yuv422 chroma subsampling

Hi, I'm trying to convert a TIFF image sequence into JPEG (sequence) for preliminary video analysis, and I need to save the JPEG using yuv444 or yuv442.. but all I have achieved by now is the simple TIFF to JPEG conversion with some setup in the quality setting (that still produce blocky

Re: [FFmpeg-user] Image Conversion TIFF JPEG with yuv422 chroma subsampling

here the uncut command $ ffmpeg.exe -pix_fmt yuv422p -i //isilon.nas/miame/02_production/00_supervision/03_shot_approval/06_compositing/sc_mm2e14/_Tiff/sq_001/sc_001/pcp_m ia_mm2e14_001_001_v005/pcp_mia_mm2e14_001_001_v005_0067.tif