Re: [FFmpeg-user] Strange results with -preset

2018-01-28 18:38 GMT+01:00 Cecil Westerhof : > I need to upload a set of videos, but before I do that I need to > shrink them. But I get a very strange result. Of-course the preset > veryfast is faster as faster, fast, medium, slow, slower and veryslow. > But the strange thing is

Re: [FFmpeg-user] Strange results with -preset

2018-01-29 0:12 GMT+01:00 Nicolas George : > Carl Eugen Hoyos (2018-01-28): >> Since you did not specify a bitrate > > But CRF was specified. And therefore, no specific output file size can be expected afaiu. Carl Eugen ___ ffmpeg-user

Re: [FFmpeg-user] Strange results with -preset

Moritz Barsnick writes: > On Sun, Jan 28, 2018 at 18:38:48 +0100, Cecil Westerhof wrote: >> | faster| 106.2 |7 | >> | veryfast | 83.2 |5 | >> | superfast | 177.4 |4 | > [...] >> So it looks like I should always use superfast. (But probably a good >> idea to

Re: [FFmpeg-user] Error converting .m4a to .mp3

2018-01-28 21:53 GMT+01:00 Bernhard Döbler : > I want to convert an mp4 file from iTunes to MP3 using ffmpeg. > For on certain file I get error: Command line and complete, uncut console output missing. Feel free to test the following: $ ffmpeg -i input -acodec pcm_f32le

Re: [FFmpeg-user] Strange results with -preset

Carl Eugen Hoyos (2018-01-28): > Since you did not specify a > bitrate But CRF was specified. Regards, -- Nicolas George signature.asc Description: Digital signature ___ ffmpeg-user mailing list

[FFmpeg-user] Error converting .m4a to .mp3

Hi, I want to convert an mp4 file from iTunes to MP3 using ffmpeg. For on certain file I get error: ~~~ Program: c:\Program Files\ffmpeg-20180121-78e884f-win64-shared\bin\ffmpeg.exe File: ../../src/lame-3.100/libmp3lame/vbrquantize.c, Line 783 Expression: vbrsf[sfb] >= vbrsfmin[sfb] This

Re: [FFmpeg-user] ffmpeg ffv1 issue

Dear Jeff, As Lou and Gyan already said: The "- slicecrc" space causes the "pipe" error message. On 2018-01-27 21:01, jeff.radcli...@comcast.net wrote: > I'm having newb issue getting ffmpeg to transcode an avi file to an archive > format using ffv1. > > I've studied (a term used loosely) the

[FFmpeg-user] YouTube streaming of a static image...

Hello, I'm trying to stream (on YouTube) an image... This image is a PNG file on my computer... The dimensions of my PNG file are 1280x720... This image usually don't change but from times to times it might change and of course the stream must refresh/update it... The goal is to stream this

[FFmpeg-user] How do I get the presets I can use

I want to play a bit with -preset, but how do I get the correct list with parameters? At one place I found: - veryslow - slow - normal - fast - faster - veryfast - ultrafast But at another I also found: - superfast - medium - slower - placebo but was missing normal. I tried

Re: [FFmpeg-user] despill filter usage??

On 1/27/18, Igor Cabrera wrote: > > up vote0down vote > > favorite > > I'm triying to make a good chroma key with ffmpeg but in my video there is > some green spill I've seen there is a despill

Re: [FFmpeg-user] Sample types 's32 (24 bit)' and 's16 (24 bit)' are confusing to me

2018-01-27 18:58 GMT+01:00 Zak : > ffprobe version 3.0.2 Copyright (c) 2007-2016 the FFmpeg developers This is old and unsupported, the bug you see was fixed some time ago. > Why does the FLAC say "s32", Because FFmpeg internally only knows 8, 16 and 32 (and more)

Re: [FFmpeg-user] Reencoding video from image sequence doesn't work (sometimes)

2018-01-18 22:34 GMT+01:00 Carl Eugen Hoyos : > Are the attachments of your output file the reason for the > issue: Does it disappear if you only put one video and one > audio stream in the output file? Did you comment on this question? Sorry if I missed it, Carl Eugen

Re: [FFmpeg-user] How do I get the presets I can use

Cecil Westerhof (2018-01-28): > I want to play a bit with -preset, but how do I get the correct list > with parameters? Just give an invalid preset and read the error message. Regards, -- Nicolas George signature.asc Description: Digital signature

Re: [FFmpeg-user] ADPCM block size for XAudio

2018-01-27 15:08 GMT+01:00 Martin Wahnschaffe : > I changed the BLKSIZE constant to 512 and it still didn't work with XAudio. Good that you tested this! (Sorry if I already asked:) Is the issue also reproducible with WMP or only with "XAudio"? Thank you, Carl Eugen

Re: [FFmpeg-user] error malloc of size ... failed

2018-01-26 13:13 GMT+01:00 JONI JONI : > when I save rtsp strem to 264 file i get error malloc of size ... failed, > why? > My ffmpeg commnd is : ffmpeg -i rtsp:// test.264 (This command does not "save" the rtsp stream, it re-encodes to h264.) Complete, uncut console output

Re: [FFmpeg-user] How do I get the presets I can use

Nicolas George writes: > Cecil Westerhof (2018-01-28): >> I want to play a bit with -preset, but how do I get the correct list >> with parameters? > > Just give an invalid preset and read the error message. It is: - ultrafast - superfast - veryfast - faster

[FFmpeg-user] Strange results with -preset

I need to upload a set of videos, but before I do that I need to shrink them. But I get a very strange result. Of-course the preset veryfast is faster as faster, fast, medium, slow, slower and veryslow. But the strange thing is that it also create a smaller version of the file. My original file is

Re: [FFmpeg-user] Strange results with -preset

On Sun, Jan 28, 2018 at 18:38:48 +0100, Cecil Westerhof wrote: > | faster| 106.2 |7 | > | veryfast | 83.2 |5 | > | superfast | 177.4 |4 | [...] > So it looks like I should always use superfast. (But probably a good > idea to test it with a few other videos.) Funny, I had the