[FFmpeg-user] Low-quality transcode

Hi list, I'm a member of the FOSDEM video team. I wrote a tool to automatically review and transcode FOSDEM video recordings, written in Perl, which simply calls ffmpeg and ffprobe to do all the hard work[1]. It works well, but there's something that's a bit weird. For one particular talk, the

Re: [FFmpeg-user] hls and input http stream changes problem

pá 14. 2. 2020 v 16:57 odesílatel Ted Park napsal: > > What parameters make ffmpeg to accept all input streams? > > Try if adding -f mpegts -merge_pmt_versions 1 before the input works. > It seems to be working, thanks! Michal > ___ > ffmpeg-user

Re: [FFmpeg-user] h264 videos are darker

On 17-02-2020 02:52 am, Ted Park wrote: Thanks for the response; I'm a little confused about "output pixel format", as I thought that the -pix_fmt flag is for that. The -pixel_format flag seem to be for the input. So question, what flag are you referring to? Is there another flag to be used

Re: [FFmpeg-user] Question

> Would you be able to help me with why there are skipped segments and how I > can avoid them? Because after it's downloaded there are frames in the video > that are frozen. The website I am referring to is: > https://ch.nicovideo.jp/nicopro if that's of any assistance. Also, if you > don't mind

[FFmpeg-user] WebVTT demuxer ignores processing every 1st line of each follow-up HLS webvtt-segment

Hello ffmpeg-user, While reading this Github-issue-comment and testing the mentioned HLS-webvtt-url I first of all noticed that, unlike the user claims, ffmpeg does demux all the webvtt-segments. Why this is not

Re: [FFmpeg-user] h264 videos are darker

> Thanks for the response; I'm a little confused about "output pixel format", > as I thought that the -pix_fmt flag is for that. The -pixel_format flag seem > to be for the input. > So question, what flag are you referring to? Is there another flag to be used > for the 'output pixel format’?

Re: [FFmpeg-user] How to compress .MOV file compatible to Canon camera

Hey Moritz, much thanks for your great suggestions. They sound really good. I'll try all that. -Ulf Am 16.02.20 um 13:53 schrieb Moritz Barsnick: On Sun, Feb 16, 2020 at 13:49:56 +0100, Moritz Barsnick wrote: Note the "Constrained Baseline". Alas, I don't know how to tell ffmpeg/libx264 to

Re: [FFmpeg-user] Question

On Sat, Feb 15, 2020 at 11:11:53 +, CheeZe AMV's wrote: > Would you be able to help me with why there are skipped segments and how I > can avoid them? Because after it's downloaded there are frames in the video > that are frozen. The website I am referring to is: >

Re: [FFmpeg-user] How to compress .MOV file compatible to Canon camera

On Sun, Feb 16, 2020 at 13:49:56 +0100, Moritz Barsnick wrote: > Note the "Constrained Baseline". > > Alas, I don't know how to tell ffmpeg/libx264 to use this profile - > only "Baseline". D'uh, I just noticed that using "-profile:v baseline" will get you a Contrained Baseline output. I still

Re: [FFmpeg-user] How to compress .MOV file compatible to Canon camera

On Sun, Feb 16, 2020 at 09:58:16 +0100, Ulf Zibis wrote: > When I copy them back to the camera, they are no more playable on the > camera. Damn, I wanted to save space on the memory card. > > Does anyone have an idea, which options maybe could help to get a > compatible format for my camera?

[FFmpeg-user] How to compress .MOV file compatible to Canon camera

Hi, on my Canon PowerShot A2200 I have some movies in Quicktime format. I can compress them 5x without any visible quality lost. When I copy them back to the camera, they are no more playable on the camera. Damn, I wanted to save space on the memory card. Does anyone have an idea, which