Re: [FFmpeg-user] Video processing stopped prematurely on resolution change

2016-10-20 Thread Lou
On Thu, 20 Oct 2016 14:46:56 +0200 Martin Ždila wrote: > Even simpler example to reproduce the problem using just one file from the > referenced tarball: > > ffmpeg -y -i b.webm -filter_complex " > color=color=black:size=320x240 [bg]; > [0:v] setpts=PTS-STARTPTS, > scale=320x240:force_origin

Re: [FFmpeg-user] when to use 10bit

2016-10-20 Thread Sven C. Dack
On 20/10/16 19:07, ilker tezcan wrote: Also, old GPUs doesn't supports playback to videos encoded "10-bit" x264 in GPU (hardware-acceleration) mode. Therefore the CPU usage increases while the 10-bit videos playing. ___ I think the question as to w

Re: [FFmpeg-user] when to use 10bit

2016-10-20 Thread ilker tezcan
Also, old GPUs doesn't supports playback to videos encoded "10-bit" x264 in GPU (hardware-acceleration) mode. Therefore the CPU usage increases while the 10-bit videos playing. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mail

[FFmpeg-user] overlay filter corrupts timing of the video

2016-10-20 Thread Martin Ždila
Hello When I run following command against file in http://filebin.ca/2z88Rc4fcYbB/videos.tar then output timing is corrupted - result is like 1 FPS. ffmpeg -y -i a.mp4 -filter_complex " nullsrc=size=320x240 [bg]; [0:v] scale=320x240 [main]; [bg][main] overlay=shortest=1" \ -c:v libx264 -pre

Re: [FFmpeg-user] Video processing stopped prematurely on resolution change

2016-10-20 Thread Martin Ždila
Even simpler example to reproduce the problem using just one file from the referenced tarball: ffmpeg -y -i b.webm -filter_complex " color=color=black:size=320x240 [bg]; [0:v] setpts=PTS-STARTPTS, scale=320x240:force_original_aspect_ratio=decrease [main]; [bg][main] overlay=x=160-overlay_w/2

[FFmpeg-user] Video processing stopped prematurely on resolution change

2016-10-20 Thread Martin Ždila
Hello I have two videos where one of them changes it resolution (rotation) twice. I would like to join them side by side. I've used following command: ffmpeg -y -i a.webm -i b.webm -filter_complex " color=color=black:size=640x240 [base]; [0:v] setpts=PTS-STARTPTS, scale=320x240:force_original

Re: [FFmpeg-user] issue with concat and seek

2016-10-20 Thread Carles Vila
> > > Good point - I wasn't aware it would do it this way. (I'll need to play > around with this to understand, for myself.) > > I'm pretty sure the "inpoint" directive to the concat demuxer will then > suffer the same issue. Its documentation even says: > > This directive works best with intra f

Re: [FFmpeg-user] Set keyframe interval raw video

2016-10-20 Thread Carl Eugen Hoyos
2016-10-20 10:38 GMT+02:00 Gabor Alsecz : > Dear All, > > Would like to know what is the best way/parameter to force key frame > interval. I would need 2*FPS > I'm feeding FFmpeg's stdout with raw images at fps 25. > So far i have the following command: > ffmpeg -y -loglevel info -f lavfi -i aev

Re: [FFmpeg-user] issue with concat and seek

2016-10-20 Thread Moritz Barsnick
On Wed, Oct 19, 2016 at 19:43:00 +0200, Cley Faye wrote: > To me, it sound like it might copy all the video, and set the stream to > start at the specified time, if there is no keyframe between the start and > the cutting point. If that's the case, then concat might not be honoring > this starting

[FFmpeg-user] Set keyframe interval raw video

2016-10-20 Thread Gabor Alsecz
Dear All, Would like to know what is the best way/parameter to force key frame interval. I would need 2*FPS I'm feeding FFmpeg's stdout with raw images at fps 25. So far i have the following command: ffmpeg -y -loglevel info -f lavfi -i aevalsrc=0 -f rawvideo -pix_fmt rgb24 -video_size 1280x72

Re: [FFmpeg-user] Extracting embedded xml metadata im mp4

2016-10-20 Thread Carl Eugen Hoyos
2016-10-20 10:41 GMT+02:00 Robert Krüger : > So would a patch be accepted that implements reading of this > additional metadata? (Sorry if this was not directed to me...) I am not maintainer of mov.c and therefore cannot answer but the only way to find out is to send a (clean) patch made with gi

Re: [FFmpeg-user] Extracting embedded xml metadata im mp4

2016-10-20 Thread Robert Krüger
On Wed, Oct 19, 2016 at 11:35 PM, Carl Eugen Hoyos wrote: > 2016-10-19 19:31 GMT+02:00 Robert Krüger : > > > Are those meta atoms parsed in the mov demuxer? > > Yes, but most content (except "hdlr") is ignored. > > Thanks for the clarification! So would a patch be accepted that implements readin

Re: [FFmpeg-user] Compiling for libavcodec VDPAU hwaccel

2016-10-20 Thread Carl Eugen Hoyos
2016-10-12 9:14 GMT+02:00 Torstein Sørnes : > ffmpeg_options: > --enable-vdpau (This is not related to your issue, just to FFmpeg configuration in general) The option --enable-vdpau has no effect, that's why it is not listed when you run ./configure --help. Carl Eugen __

Re: [FFmpeg-user] when to use 10bit

2016-10-20 Thread Carl Eugen Hoyos
2016-10-20 5:12 GMT+02:00 George Nistor : > When makes sense to use 10 bit for video encoding? Using x264 10bit encoding always (!) means better quality for a given bitrate, even for 8bit input but many video players may not be able to playback 10bit h264. Carl Eugen

Re: [FFmpeg-user] when to use 10bit

2016-10-20 Thread Francois Visagie
> -Original Message- > From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of > George Nistor > Sent: 20 October 2016 06:13 > To: ffmpeg-user@ffmpeg.org > Subject: [FFmpeg-user] when to use 10bit > > Hello Ffmpeg-users, > > I have a general question. > When makes sense to

Re: [FFmpeg-user] when to use 10bit

2016-10-20 Thread Erik Dobberkau
Am Donnerstag, 20. Oktober 2016 schrieb George Nistor : > Hello Ffmpeg-users, > > I have a general question. > When makes sense to use 10 bit for video encoding? > > Does it make any difference at high kbps? For more than 3000 kbps it is > seen a difference > in more quality (acuracy) of the color

Re: [FFmpeg-user] Compiling FFmpeg without SecIdentityCreate API

2016-10-20 Thread Erik Dobberkau
Am Mittwoch, 19. Oktober 2016 schrieb Josh Sloat : > > >Please fix your quoting > > I’m using the Reply button in mail.app and the “>" symbol for quoting. > Pretty standard stuff. Not sure what more I can do. > Josh, please reply in context below the respective question/statement, and remove any