Re: [FFmpeg-devel] Experiences in using ffmpeg to transcode broadcast video

2014-11-16 Thread Mika Raento
A follow-up (I'll write this up better somewhere too once I get a chance). I've rewritten my transcoding pipeline, avoiding -copyts and it looks pretty promising. I now: 1. cut the input mpegts into pieces that have a) the same aspect ratio and b) monotonic timestamps (for both audio and video);

Re: [FFmpeg-devel] Experiences in using ffmpeg to transcode broadcast video

2014-10-29 Thread Mika Raento
Created a feature request to automatically scale subtitles for HD video https://trac.ffmpeg.org/ticket/4066 On 29 October 2014 14:25, Mika Raento wrote: > Created a feature request to support columnboxing input that changes > aspect-ratio mid-stream. > > https://trac.ffmpeg.org/ticket/4065 > >

Re: [FFmpeg-devel] Experiences in using ffmpeg to transcode broadcast video

2014-10-29 Thread Mika Raento
Created a feature request to support columnboxing input that changes aspect-ratio mid-stream. https://trac.ffmpeg.org/ticket/4065 On 29 October 2014 13:49, Mika Raento wrote: > Tickets for sub2video and async not working with non-monotonic input, > using -copyts: > > https://trac.ffmpeg.org/tic

Re: [FFmpeg-devel] Experiences in using ffmpeg to transcode broadcast video

2014-10-29 Thread Mika Raento
Tickets for sub2video and async not working with non-monotonic input, using -copyts: https://trac.ffmpeg.org/ticket/4062 https://trac.ffmpeg.org/ticket/4064 Hm. Lots of my issues seem to relate to using -copyts. I had trouble keeping all video and all audio if there were periods where one or the

Re: [FFmpeg-devel] Experiences in using ffmpeg to transcode broadcast video

2014-10-29 Thread Mika Raento
segment muxer PIDs were fixed in https://github.com/FFmpeg/FFmpeg/commit/502fc3b3d4b36015562d19d74f27d0a4ff835c4e by me On 29 October 2014 10:17, Mika Raento wrote: > Hi > > Thanks for the feedback. > > I'll try to capture at least some of these in tickets, and reply on this > thread as I go alo

Re: [FFmpeg-devel] Experiences in using ffmpeg to transcode broadcast video

2014-10-29 Thread Mika Raento
Hi Thanks for the feedback. I'll try to capture at least some of these in tickets, and reply on this thread as I go along. Async not working with damaged audio input is https://trac.ffmpeg.org/ticket/2693 (existing ticket) Sub2video not working with negative timestamps is https://trac.ffmpeg.or

Re: [FFmpeg-devel] Experiences in using ffmpeg to transcode broadcast video

2014-10-26 Thread Michael Niedermayer
On Wed, Sep 24, 2014 at 10:43:40AM +0300, Mika Raento wrote: > Dear all > > This mail is meant mainly as a note to other potential users, but > possibly as input to development - time allowing I might be able to pick > up some of the pieces myself. It's also a thank-you for all the hard > work in

[FFmpeg-devel] Experiences in using ffmpeg to transcode broadcast video

2014-09-24 Thread Mika Raento
Dear all This mail is meant mainly as a note to other potential users, but possibly as input to development - time allowing I might be able to pick up some of the pieces myself. It's also a thank-you for all the hard work in ffmpeg. I've successfully implemented a transcoding pipeline for produci