Re: [FFmpeg-user] Video filtering for chroma dot crawl and rainbow effect

On Monday, January 25, 2016, Andy Furniss wrote: > Andy Furniss wrote: > >> Andy Furniss wrote: >> >>> Carl Eugen Hoyos wrote: >>> Christian Johannesen gmail.com> writes: ffmpeg.exe -r 3/1001 -i > D:\media\test_720x486i_dotcrawl.mov >

Re: [FFmpeg-user] Encoding from video input results in damaged video

What I can see during encoding are a lot of these outputs; [alsa @ 0x9194c0] ALSA buffer xrun. 1131kB time=00:00:03.16 bitrate=2922.2kbits/s dup=32 drop=0 [alsa @ 0x9194c0] ALSA buffer xrun. 2400kB time=00:00:05.34 bitrate=3674.8kbits/s dup=41 drop=0 [alsa @ 0x9194c0] ALSA buffer xrun. 2951kB

Re: [FFmpeg-user] Encoding from video input results in damaged video

On Tue, Jan 26, 2016 at 11:21:37 +0100, Karl Karpfen wrote: > What I can see during encoding are a lot of these outputs; Did you even read the mail you replied to? This may be somewhat useful for analysis for someone who knows the issue: > [alsa @ 0x9194c0] ALSA buffer xrun. 1131kB

Re: [FFmpeg-user] RTMP output - "Past duration too large"

With reference to this post: http://stackoverflow.com/questions/30782771/what-does-past-duration-x-xxx- too-large-mean The problem seems to disappear if you set the input frame rate, i.e. use the -r flag before your input definition, e.g. ffmpeg -r 25 -i /dev/video0

[FFmpeg-user] field order detection - numbering framepositions possible?

As we know it is possible to detect field orders with ffmpeg: ffmpeg -i -vf idet -f rawvideo -y NUL Example Output: [Parsed_idet_0 @ 003ea220] Single frame detection: TFF:0 BFF:153 Progressive:0 Undetermined:0 [Parsed_idet_0 @ 003ea220] Multi frame detection: TFF:0 BFF:153 Progressive:0

Re: [FFmpeg-user] field order detection - numbering framepositions possible?

Hi Christoph, On Tue, Jan 26, 2016 at 11:36:54 +0100, Christoph Gerstbauer wrote: > Is it possible to MARK the framenumbers to its detected field orders? > Via framenumber or timestamp? > Or to search a "known" TFF content for BFF frames? To force the output > to lines like: > Found BFF frames

Re: [FFmpeg-user] field order detection - numbering framepositions possible?

Christoph Gerstbauer wrote: As we know it is possible to detect field orders with ffmpeg: ffmpeg -i -vf idet -f rawvideo -y NUL Example Output: [Parsed_idet_0 @ 003ea220] Single frame detection: TFF:0 BFF:153 Progressive:0 Undetermined:0 [Parsed_idet_0 @ 003ea220] Multi frame detection:

Re: [FFmpeg-user] how to combine resampler? dither and resampl

On 1/26/16, G Alexander wrote: > posting a log is not beneficial, you should be able to abstract the keys and > associations without even seeing an output. > > eventually it turns out that the documentation is absolutely terrible. > you're better off reading the header

Re: [FFmpeg-user] FFMPEG output to HTTP

On Mon, Jan 25, 2016 at 22:10:17 -0800, Farid Zakaria wrote: > I'll try to see in code where HTTP method type is hardcoded. It seems there was once a proposal how to support the PUT method, but it has never have gone into ffmpeg. (The attachments don't seem to be in ffmpeg.org's archive, so I'm

Re: [FFmpeg-user] settings?

i figured this out days ago. Sent from somewhere in … The Twilight Zone > On Jan 25, 2016, at 23:59, Moritz Barsnick wrote: > > On Tue, Jan 19, 2016 at 19:05:24 -0800, G A wrote: >> what settings for x265 would you use to convert this old avi? > > I would always use the

Re: [FFmpeg-user] how to combine resampler? dither and resampl

On 1/26/16, Moritz Barsnick wrote: > G Alexander, are you "G A"? Why do you change your name? Why does > hotmail not properly reply to mails? (Why do you top-post?) > > On Tue, Jan 26, 2016 at 00:33:34 -0800, G Alexander wrote: > >> posting a log is not beneficial, you should be

Re: [FFmpeg-user] how to combine resampler? dither and resample

On Tue, Jan 19, 2016 at 18:42:27 -0800, G A wrote: > -filter:a aresample=resampler=soxr > -filter:a aresample=dither_method=shibata > > i’ve tried these separately and combined, nothing seems to work > > i get errors like Unable to find a suitable output format for >

Re: [FFmpeg-user] how to combine resampler? dither and resampl

posting a log is not beneficial, you should be able to abstract the keys and associations without even seeing an output. eventually it turns out that the documentation is absolutely terrible. you’re better off reading the header files like i did. the documentation is pitiful. > Begin

Re: [FFmpeg-user] how to combine resampler? dither and resampl

G Alexander, are you "G A"? Why do you change your name? Why does hotmail not properly reply to mails? (Why do you top-post?) On Tue, Jan 26, 2016 at 00:33:34 -0800, G Alexander wrote: > posting a log is not beneficial, you should be able to abstract the > keys and associations without even

Re: [FFmpeg-user] ffmpeg convert to wrong duration using dvd2concat

On 2016-01-21, at 05:36, Nicolas George wrote: > There is so much in the VOB files of a DVD image that anything can go wrong, > especially with so-called anti-piracy measures. Full-fledged players have > counter-measures, but not simple tools. Yes, DVDs are a bit (too) complex. But in my present

[FFmpeg-user] zimg colorspace yuv -> rgb possible?

After reminding my self recently just how bad ffmpeg yuv -> rgb can look with interlaced (without using extra flags). I wanted to try something else - Is it possible via ffmpeg with libzimg to convert yuv -> rgb or is zscale just for scaling and the Colorspace bits not implemented/need some

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

On Tue, Jan 26, 2016 at 15:43:45 +, Andy Furniss wrote: > Is it possible via ffmpeg with libzimg to convert yuv -> rgb or is > zscale just for scaling and the Colorspace bits not implemented/need > some different filter? From looking at the code, it seems to be implemented. (I don't use

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

Andy Furniss gmail.com> writes: > After reminding my self recently just how bad ffmpeg yuv -> rgb > can look with interlaced Command line, complete, uncut console output and a sample missing. > (without using extra flags). Why is this an issue? Carl Eugen

Re: [FFmpeg-user] Compiling ffmpeg with libx264

The website has some pretty clear documents on how to do it. Just add --libx264 and make sure the shared libraries are in a default path (or you can add to the LD_LIBRARY_PATH) On 25 Jan 2016 10:21 p.m., "Rayden" wrote: > Is there anyone who could help in

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

Moritz Barsnick wrote: On Tue, Jan 26, 2016 at 15:43:45 +, Andy Furniss wrote: Is it possible via ffmpeg with libzimg to convert yuv -> rgb or is zscale just for scaling and the Colorspace bits not implemented/need some different filter? From looking at the code, it seems to be

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

On 1/26/16, Andy Furniss wrote: > Moritz Barsnick wrote: >> On Tue, Jan 26, 2016 at 15:43:45 +, Andy Furniss wrote: >>> Is it possible via ffmpeg with libzimg to convert yuv -> rgb or is >>> zscale just for scaling and the Colorspace bits not >>> implemented/need some

[FFmpeg-user] How to pan hozitonally on a video?

RE:https://www.ffmpeg.org/ffmpeg-filters.html#zoompan Hi, I have a 30 sec video in 1920x1080@25fps I want to pan/crop with a constant rectangle of 1200x980 It rectangle starts at position (0,0) till t=10 sec than from t=10 sec to t=20sec I wish my rectangle to move at a constant/linear speed

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

Carl Eugen Hoyos wrote: Andy Furniss gmail.com> writes: After reminding my self recently just how bad ffmpeg yuv -> rgb can look with interlaced Command line, complete, uncut console output and a sample missing. It's too soon really I am still thinking about it but until I get more time

Re: [FFmpeg-user] How to pan hozitonally on a video?

On 1/26/16, Sub Phil wrote: > RE:https://www.ffmpeg.org/ffmpeg-filters.html#zoompan > > Hi, > > I have a 30 sec video in 1920x1080@25fps > > I want to pan/crop with a constant rectangle of 1200x980 > > It rectangle starts at position (0,0) till t=10 sec > than from t=10 sec

Re: [FFmpeg-user] x265 on osx

> On 2016 Jan 19, at 7:52 PM, G A wrote: > > i probably made the mistake of installing x265 lib via homebrew, ugh, i’m > transcoding some video > and get this from the display > > x265 [info]: HEVC encoder version 1.8+1-5dcc9d3a928c400b > x265 [info]: build info [Mac

[FFmpeg-user] Pixel Format 10-bit YUV (v210) and 10-bit RGB (r210)

Hi, Forgive me if I'm not going through the proper protocol in contacting the list users for this forum, I'm new to this site and to FFMPEG. I was curious to know if you could please help me out. I came across your thread on FFmpeg User. I see that it is dated roughly 3 years ago.

Re: [FFmpeg-user] Pixel Format 10-bit YUV (v210) and 10-bit RGB (r210)

> On Jan 26, 2016, at 1:56 PM, Joe Volpe wrote: > > Hi, > > Forgive me if I'm not going through the proper protocol in contacting the > list users for this forum, I'm new to this site and to FFMPEG. > I was curious to know if you could please help me out. > > I came

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

Paul B Mahol wrote: On 1/26/16, Andy Furniss wrote: Maybe there is some way - or maybe not, I thought I would ask before doing my usual ffmpeg game of trying many many options/variants in the hope that eventually something will work :-) ffmpeg -i yuv -vf

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

Andy Furniss wrote: Carl Eugen Hoyos wrote: Andy Furniss gmail.com> writes: After reminding my self recently just how bad ffmpeg yuv -> rgb can look with interlaced Command line, complete, uncut console output and a sample missing. It's too soon really I am still thinking about it but

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

On 1/26/16, Andy Furniss wrote: > Paul B Mahol wrote: >> On 1/26/16, Andy Furniss wrote: > >>> Maybe there is some way - or maybe not, I thought I would ask >>> before doing my usual ffmpeg game of trying many many >>> options/variants in the hope that

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

Paul B Mahol wrote: On 1/26/16, Andy Furniss wrote: Paul B Mahol wrote: On 1/26/16, Andy Furniss wrote: Maybe there is some way - or maybe not, I thought I would ask before doing my usual ffmpeg game of trying many many options/variants in the

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

Andy Furniss wrote: Here's the assert - after seeing swscale in the first test I tried format=rgb24 ... ffmpeg -loglevel debug -i snk-422i-flags.y4m -vf zscale,format=rgb24 zimg-422.png ffmpeg version N-78059-g2e31434 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.3.0

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

On 1/26/16, Andy Furniss wrote: > Andy Furniss wrote: > Here's the assert - after seeing swscale in the first test I tried > format=rgb24 ... use copy filter before zscale filter. Anyway using y4m is wrong as it doesnt have frame metadata as primaries,matrix coefficients

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

Paul B Mahol wrote: On 1/26/16, Andy Furniss wrote: Andy Furniss wrote: Here's the assert - after seeing swscale in the first test I tried format=rgb24 ... use copy filter before zscale filter. Anyway using y4m is wrong as it doesnt have frame metadata as

Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible?

liupin.2...@gmail.com From: Andy Furniss Date: 2016-01-27 02:34 To: ffmpeg-user Subject: Re: [FFmpeg-user] zimg colorspace yuv -> rgb possible? Carl Eugen Hoyos wrote: > Andy Furniss gmail.com> writes: > >> After reminding my self recently just how bad ffmpeg yuv -> rgb can >> look with

Re: [FFmpeg-user] How to pan hozitonally on a video?

According to http://ffmpeg.org/ffmpeg-filters.html#crop the expression variables for t (time in seconds) and n (frame number) are available. # X distance per frame = (400 - 0) / (10 * 25) = 1.6 # Y distance per frame = (10 - 0) / (10 * 25) = 0.04 I suspect you'll want something similar to the

Re: [FFmpeg-user] [FFMPEG] Audio/Video Syncing

Hi Everyone, Good morning. I would like to follow-up if there are other solutions I do based on the logs and information I have provided? Thanks! Regards, Guillermo On 1/15/2016 4:27 PM, Guillermo Martinez wrote: Hi Carl, Good afternoon. Thank you very much for the reply. On 1/13/2016

Re: [FFmpeg-user] Video filtering for chroma dot crawl and rainbow effect

Christian Johannesen wrote: On Monday, January 25, 2016, Andy Furniss If you don't have access to better/"real" masters I don't think you can get good results from this. What produced this file with height 486? The file was captured as 720x486 29.97 fps interlaced