Re: [FFmpeg-user] ffmpeg CL translation from Linux to Windows

2015-11-13 Thread Claudiu Rad-Lohanel
On 11/13/2015 8:37 PM, MrNice wrote: On 13/11/15 15:35, Claudiu Rad wrote: On 11/8/2015 8:25 PM, MrNice wrote: Hi, I need to compare ffmpeg behaviour between Linux and Windows. I installed Virtualbox on my Fedora host and Win 8.1 as guest. Now I need to translate the Linux CL ./ffmpeg -debu

Re: [FFmpeg-user] Reduce mux overhead of HLS stream creation

2015-02-16 Thread Claudiu Rad-Lohanel
On 2/16/2015 3:27 PM, Christian Ebert wrote: * Claudiu Rad-Lohanel on Monday, February 16, 2015 at 12:31:58 +0200 And to also clarify something: ffmpeg's overhead is ALWAYS bigger than Apple's mediafilesegmenter, no matter the bitrate. But I assume it tends to be more constant (o

Re: [FFmpeg-user] Reduce mux overhead of HLS stream creation

2015-02-16 Thread Claudiu Rad-Lohanel
On 2/16/2015 10:46 AM, Moritz Barsnick wrote: On Mon, Feb 16, 2015 at 04:38:47 +, Wesley Wen wrote: I'm using FFmpeg to create HLS stream, but noticed significant TS muxing overhead (especially for low bitrate condition). I used Elecard Stream Analyzer to look at the stream and came up some

Re: [FFmpeg-user] MPEG-2 CBR

2015-01-15 Thread Claudiu Rad-Lohanel
On 1/15/2015 1:30 PM, Janez Miklavcic wrote: f:/ffmpeg/bin/ffmpeg.exe -f dshow -video_size 720x576 -framerate 25 -pixel_format bgr24 -i video="VidBlaster VVD" -mpegts_service_id 0x002 -metadata service_name="POLANC TV INFO" -metadata service_provider="SVISLAR telekom d.o.o." -vcodec mpeg2video -

Re: [FFmpeg-user] Stretch

2015-01-13 Thread Claudiu Rad-Lohanel
On 1/14/2015 9:25 AM, Vladimir Bilichenko wrote: Hi. I have a question about video stretching. I have a video( https://www.dropbox.com/sh/5mw6hvgw170ov8b/AADABGroGqbSg_a9INZiesrQa?dl=0) width = 840, height = 922. I need to change the size of the video to 1920x1080 it must be stretched. Output f

Re: [FFmpeg-user] Audio channel mapping of stereo channel without re-encode

2014-08-21 Thread Claudiu Rad-Lohanel
On 8/21/2014 5:30 PM, Carl Eugen Hoyos wrote: Hanno Klamke streamlab.net> writes: I would like to transcode a video into several outputs. From the source audio I would like to take either only the left or the right channel into my outputs. While only transcoding the video and copy the audio.

Re: [FFmpeg-user] -threads option has no effect

2014-08-12 Thread Claudiu Rad-Lohanel
On 8/12/2014 2:23 PM, Carl Eugen Hoyos wrote: Claudiu Rad-Lohanel misalpina.net> writes: ffmpeg -i -threads ... This is of course not sufficient since for decoding, threads also defaults to the number of cores and decoding can be the more time-consuming factor (depending on codecs

Re: [FFmpeg-user] -threads option has no effect

2014-08-12 Thread Claudiu Rad-Lohanel
On 8/12/2014 1:56 PM, Rohit Talwar wrote: Hi Thanks for looking into my query. I have a main java program within which I run ffmpeg (using exec). Often there comes a scenario wherein my program needs to create 4+ different instances of ffmpeg program for converting files into different formats.

[FFmpeg-user] copy input i-frames structure to output

2014-07-14 Thread Claudiu Rad-Lohanel
hello, i need to do transcoding of an mp4 video and i want to keep the i-frame structure the same as in the original video. i've searched info on this but couldn't find out if it is even possible with ffmpeg although my wild guess is that it should be. furthermore, to complicate things, ffmpe