Re: [FFmpeg-user] ffmpeg performance 3.3 vs. 3.2.4

On 5/17/17, Chris wrote: >>> I'm batch transcoding h264 ts streams to h265. Lately, I replaced ffmpeg >>> 3.2.4 with 3.3, and noticed that the average frame rate for transcoding >>> dropped from about 2.4 to 1.0. For testing purposes, I have switched >>> back to 3.2.4 for the next file, and the fr

Re: [FFmpeg-user] ffmpeg performance 3.3 vs. 3.2.4

I'm batch transcoding h264 ts streams to h265. Lately, I replaced ffmpeg 3.2.4 with 3.3, and noticed that the average frame rate for transcoding dropped from about 2.4 to 1.0. For testing purposes, I have switched back to 3.2.4 for the next file, and the frame rate went up to 3.2.4 again. Command

Re: [FFmpeg-user] Question about ffmpeg -i video-clip.mp3 -lavfi showspectrumpic=s=100x40 out.jpg

On 5/16/17, HQ HQ wrote: > Hi > > > I have a quick question about ffmpeg. > > I want to extract spectrum from audio through commend ffmpeg -i > video-clip.mp3 -lavfi showspectrumpic=s=100x40 out.jpg. I hope the output > only include the spectrum, but the out.jpg also includes the labels and the >

[FFmpeg-user] Question about ffmpeg -i video-clip.mp3 -lavfi showspectrumpic=s=100x40 out.jpg

Hi I have a quick question about ffmpeg. I want to extract spectrum from audio through commend ffmpeg -i video-clip.mp3 -lavfi showspectrumpic=s=100x40 out.jpg. I hope the output only include the spectrum, but the out.jpg also includes the labels and the legend, which I don't want. Could you

Re: [FFmpeg-user] need an example unix domain sockets usage

Thanks Moritz, You explanation was helpful. On Sat, May 13, 2017 at 1:07 AM, Moritz Barsnick wrote: > On Fri, May 12, 2017 at 19:41:10 +0530, Ratheendran R wrote: > > *I am trying to ffmpeg and ffplay commands on ubuntu as below.the ffplay > > gives a permission denied. ffmpeg exits immediatly

Re: [FFmpeg-user] Create an AAC stream matching the Core Media Audio packet format / priming etc?

On 9 May 2017, 15:42 +0100, Mark Burton , wrote: > > > Do you not see the same behaviour? > > No, unfortunately not. > Can I ask - are you playing back your encoded file on macOS in either > Quicktime Player 7.x or Quicktime Player 10.x? > I don’t believe you will see this unless you are using a

Re: [FFmpeg-user] gst-ffmpeg on ARM Linux: GNU assembler not found, install/update gas-preprocessor

2017-05-10 19:27 GMT+02:00 Gottfried Haider : > I've been trying to compile the latest GStreamer for the > Raspberry Pi running Raspbian (Debian). > > When I try to build gst-ffmpeg, it fails with the message: You cannot get support for building GStreamer (and gst-ffmpeg) on this mailing list. If