Re: [FFmpeg-user] combining concat filter with closed caption extraction

2020-06-12 Thread Leo Butler via ffmpeg-user
Nicolas George writes: >> Rather than creating the file C.mkv in the first pass, can the lavfi >> filter use the video output stream of the concat filter directly? > > My answer is the same: 'movie=C.mkv[out0+subcc]' is just another input, > like B.ts. You can see that because they both have -i i

Re: [FFmpeg-user] Live filtering a VR game

2020-06-12 Thread 程来顺(Ryan)
good idea ---Original--- From: "Antoine Martin"https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org ht

[FFmpeg-user] VAAPI filters defined in source not available in my compiled ffmpeg?

2020-06-12 Thread John Allard
Hello, I have compiled FFMPEG from release/4.3 branch with vaapi enabled. This is the buildconf of my ffmpeg binary ffmpeg version N-98129-g0b182ff Copyright (c) 2000-2020 the FFmpeg developers built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609 configuration: --disable-debug --dis

Re: [FFmpeg-user] Slow seeking for GB-scale MOVs?

2020-06-12 Thread John Hawkinson
Any thoughts on this issue, or how best to narrow or debug it? (Platform is MacOS if that's helpful, but I could do so from Linux is that's easier.) Thank you! -- jh...@alum.mit.edu John Hawkinson John Hawkinson wrote on Sun, 7 Jun 2020 at 19:26:26 EDT in <20200607232626.ga74...@alum.mit.edu

Re: [FFmpeg-user] FFmpeg single threaded bottleneck

2020-06-12 Thread Gabriel Balaich
Apologies for the late response, I was undergoing some major hardware changes in my setup and am now back to trying to figure this out. > There is no multi-threaded audio encoding. Yeah, I guess I understand why that makes sense programmatically, but my issue isn't really that my audio is bein

Re: [FFmpeg-user] Compression issue using ffmpeg

2020-06-12 Thread Carl Zwanzig
On 6/12/2020 10:59 AM, Moritz Barsnick wrote: On Fri, Jun 12, 2020 at 16:46:30 +, FFmpeg user discussions wrote: Requesting you to read the entire email and kindly help me in solving this. I'm in urgent need of this fix. And you asked this question a few days ago. ffmpeg -i Input0.mov -

Re: [FFmpeg-user] Compression issue using ffmpeg

2020-06-12 Thread Moritz Barsnick
On Fri, Jun 12, 2020 at 16:46:30 +, FFmpeg user discussions wrote: > Requesting you to read the entire email and kindly help me in solving > this. I'm in urgent need of this fix. This is all voluntary work here, but happy to help. > I used the following command to convert a .mov file to .mp4

[FFmpeg-user] Live filtering a VR game

2020-06-12 Thread Antoine Martin
Hi guys, I am part of a research on VR and immersion criteria. We are trying to degrade the visual and audio VR environment of a user in a simulation (a driving simulation in our case). We are currently using Euro Truck Simulator 2, a complete simulation driving game, and a HTC Vive Pro Eye. Wi

[FFmpeg-user] Compression issue using ffmpeg

2020-06-12 Thread Chakraborty, Rakesh via ffmpeg-user
Hi Team, Requesting you to read the entire email and kindly help me in solving this. I'm in urgent need of this fix. I used the following command to convert a .mov file to .mp4 file. Though it's getting converted but it's not getting compressed. ffmpeg -i Input0.mov -y -fpre ./preset/mp4_Proj

Re: [FFmpeg-user] SCTE-35 passthrough in transcoding process

2020-06-12 Thread Alessandro Molon
HI All, Devin I would be really interested in your patches, SCTE-35 is a topic that I'm really interested to . Thanks Alex -Original Message- From: ffmpeg-user On Behalf Of Devin Heitmueller Sent: 21 January 2020 14:21 To: FFmpeg user questions Subject: Re: [FFmpeg-user] SCTE-35 passt