Re: [FFmpeg-user] Same binary and same command 1 byte difference first frame

On Tue, 4 Sep 2018 at 09:15 Carl Eugen Hoyos wrote: > 2018-08-31 2:57 GMT+02:00, Andrew Sinclair : > > > Bit of a long shot here in case anyone may know, I am running the same > > binary of ffmpeg on the same docker image on 2 different hosts and as a > > result I get a

[FFmpeg-user] Same binary and same command 1 byte difference first frame

Hi, Bit of a long shot here in case anyone may know, I am running the same binary of ffmpeg on the same docker image on 2 different hosts and as a result I get a different sized first I frame (out by 1 byte) between the 2 hosts, anyone have any idea how that could happen or know any settings I cou

Re: [FFmpeg-user] AC3 7.1 audio support

Carl, Can you point me at where code for the channel maps for 7.1 EAC-3 are? On 27 May 2015 at 21:09, Carl Eugen Hoyos wrote: > Moritz Barsnick gmx.net> writes: > > > That would be E-AC3 = Dolby Digital Plus then instead? > > http://www.dolby.com/us/en/technologies/dolby-digital-plus.html > >

[FFmpeg-user] Faster vp9

Hi, Does anyone have any suggestions for faster vp9 encoding? On a reasonable 4 core hyperthreaded machine I am getting <4fps encoding speed using the following: ffmpeg -i artofflight.mp4 -c:v libvpx-vp9 -threads 8 -b:v 1000k -speed 4 -tile-columns 6 -frame-parallel 1 -auto-alt-ref 1 -lag-in-fra

Re: [FFmpeg-user] Problem building with libx265

On 1 September 2014 05:07, Kimio Miyamura wrote: > > > 2014/08/30 2:29 p.m. Andrew Sinclair gmail.com> wrote: > > > > Name: x265 > > Description: H.265/HEVC video encoder > > Version: 0.8 > > Libs: -L${libdir} -lx265 -lstdc++ -lm -lrt > > Lib

Re: [FFmpeg-user] Problem building with libx265

On 30 August 2014 17:18, Carl Eugen Hoyos wrote: > Andrew Sinclair gmail.com> writes: > > > ld: library not found for -lrt > > > /usr/local/lib/libx264.142.dylib /usr/local/lib/libx265.0.8.dylib > > What does otool -L /usr/local/lib/libx265.0.8.dylib > r

[FFmpeg-user] Problem building with libx265

Hi, This used to build for me OK but for some reason it no longer builds with ./configure --enable-libx265 I am using latest git pull from today from both repos but I think this may be specific to my machine for reasons I can't work out. So if anyone has pointers please let me know? Details below

Re: [FFmpeg-user] Generate .ts file parallel, resume option, offset HLS

Not sure I completely understand what you are trying but is it to encode in paralell? Please explain further and provide full commands and output You can do this by creating multiple TS files but you will likely need to join them back together before creating the m3u8, though may be possible to g

Re: [FFmpeg-user] Problem with concat - sound and picture breaks

What is the full output of your command and also run ffprobe on the sources being concat'd. I am also not sure that your settings make sense where you are mixing codec copy with encode settings On 15 August 2014 16:54, Carl Eugen Hoyos wrote: > Loadlinx gmail.com> writes: > > > Concat works,

[FFmpeg-user] Output the timestamp of a frame with an image

Hi, Is it possible to get the timestamp of a frame when using the select filter to output a frame based on a scenecut? for example: ffmpeg -i ../source/dig_720p.mp4 -vf select='gt(scene\,0.6)' -vsync vfr preview_%04d.png Is it possible to get the timestamp in the output file name instead of just

Re: [FFmpeg-user] Switching live input source

36 +1000, Andrew Sinclair wrote: > > Hi All, > > > > Does anyone know a means to switch the input to ffmpeg while it is > running? > > > > i.e. say I am doing an encode from a live source but would then like to > > switch the input to a file for 60 seconds

[FFmpeg-user] Switching live input source

Hi All, Does anyone know a means to switch the input to ffmpeg while it is running? i.e. say I am doing an encode from a live source but would then like to switch the input to a file for 60 seconds and then back to the live source without disrupting the encode. Assume that the formats would be th

Re: [FFmpeg-user] Can FFMpeg insert a video or audio into another video or audio?

On 2 August 2014 18:44, 大山 wrote: > To whom it may be concerned: > Hi, > I'm a user of ffmpeg. I know ffmpeg can concat two videos or audios into a > new single media file, but I want to insert a video or audio into the > middle of the media file,for example, the duration of "a.avi " is 00:05:00,

Re: [FFmpeg-user] Problem splicing files

some variation there On 20 July 2014 19:58, Carl Eugen Hoyos wrote: > Andrew Sinclair gmail.com> writes: > > [...] > > It may be just me, but unfortunately, I don't understand > a word... > (starting with "splicing") > And is it possible that you up

[FFmpeg-user] Problem splicing files

Hi All, I am having a strange problem splicing some files back together where when I splice the files back together ffplay reporting: [h264 @ 0x7fe002024000] Reinit context to 640x368, pix_fmt: yuv420p This seems to cause a number of players to have issues that causes the audio to go out of sync.