[FFmpeg-user] Help with concat and overlay

Hello all, I am working on a command that concats two videos from my camera, and then overlays another video on top of the concatonated video. It is mostly working, but the timing isn't right. For sake of argument, let's say that MVI_0001.MOV is 5 min, and MVI_0002.MOV is 3 min (they are

Re: [FFmpeg-user] Help with -video_size

Hi Moritz, Roger Hi Moritz > > > > > Can you be a bit more clear? Are you trying to record the full 1366x768 > > and resize it to 1024x768, or are you trying to capture only 1024x768 > > of your screen? > I wanted to resize to 1024x768. Not capture part of the screen. If you only want a

[FFmpeg-user] Continue encoding even if one input stream as no more data for a short amount of time ?

Hi, For a project, I need to secure the continuity of a live stream output. The issue is that ffmpeg pause encoding when any input as no new data. He restart only when the source is reactivated, but the output stream is now broken for the final client here before the cut. So, simple question :

Re: [FFmpeg-user] Help with -video_size

On 1/6/17, Moritz Barsnick wrote: > On Fri, Jan 06, 2017 at 00:14:31 -0800, Tim Hiles wrote: >> I've tried recording my screen set at 1366 x 768 and specified -video_size >> to 1024x768. The command did create a recording however it did not change >> the size. The output is

[FFmpeg-user] Change Volume of a Track Without Affecting Other Tracks

I'm trying to basically take a main audio track (podcast), and add an intro and outro to it. However, the music is very loud, so I need to turn down the volume. However, when I use the volume filter on the intro/outro tracks, I notice that the main audio track is also lower than in the original

Re: [FFmpeg-user] Help with -video_size

On Fri, Jan 06, 2017 at 00:14:31 -0800, Tim Hiles wrote: > I've tried recording my screen set at 1366 x 768 and specified -video_size > to 1024x768. The command did create a recording however it did not change > the size. The output is below (further comments after the output). Can you be a bit

Re: [FFmpeg-user] Samsung HT-D330K codec issue

On Fri, Jan 06, 2017 at 03:44:11 +0100, James Darnley wrote: > > * -b:a 4M # restrict the video bitrate to 4 Mbit/s > > I would suggest -vb (or -b:v in the modern parlance) to set the video > bitrate. Sorry, I did mean -b:v of course. Thanks, Moritz

Re: [FFmpeg-user] Why do these blank spots appear in spectrograms of converted youtube videos?

On 1/6/17, Ethan Lewis wrote: > Hello > > I was converting a bunch of youtube videos into 16kHz wav files using ffmpeg > > I used the following commands > > youtube-dl -f best /path/to/youtube/video/ -f 'bestvideo,bestaudio' -o > '%(title)s.f%(format_id)s.%(ext)s' > >

[FFmpeg-user] Help with -video_size

Hi all, I've tried recording my screen set at 1366 x 768 and specified -video_size to 1024x768. The command did create a recording however it did not change the size. The output is below (further comments after the output). ffmpeg -rtbufsize 1000M -f dshow -i

[FFmpeg-user] Why do these blank spots appear in spectrograms of converted youtube videos?

Hello I was converting a bunch of youtube videos into 16kHz wav files using ffmpeg I used the following commands youtube-dl -f best /path/to/youtube/video/ -f 'bestvideo,bestaudio' -o '%(title)s.f%(format_id)s.%(ext)s' ffmpeg -i /path/to/download/m4a/audio -acodec pcm_s16le -ar 16000 -ac