Re: [Libav-user] i-Frame only without encoding

Patrick Fischer writes: > I'm trying to create an I-Frame only video from an > existing video. > This works fine: > ffmpeg -i input.ts -vf select='eq(pict_type\,PICT_TYPE_I)' output.ts > > Is there an way without re-encoding the video? Currently not, I suspect this is

[Libav-user] Reencoding sound track in video file.

I am working on converting audio track of video files. In these files video is encoded with h263 codec and audio with AMR_WB. I have to convert audio track to be encoded with AAC coded. So the new video should be encoded with h263 and sound with AAC. My general approach is to copy video frame

Re: [Libav-user] how to build ffmpeg with -O0 instead of -O1

On Mon, Mar 21, 2016 at 9:19 AM, qw wrote: > Hi, > > I want to build ffmpeg without optimization options, which means compiling > flags uses O0 instead of O1-O3. I use the following command to build ffmpeg, > where O1 is used in config.mak. > > ./configure --enable-debug

[Libav-user] i-Frame only without encoding

Hello I'm trying to create an I-Frame only video from an existing video. This works fine: ffmpeg -i input.ts -vf select='eq(pict_type\,PICT_TYPE_I)' output.ts Is there an way without re-encoding the video? Something like: ffmpeg -i input.ts -vf select='eq(pict_type\,PICT_TYPE_I)' -vcodec

[Libav-user] how to build ffmpeg with -O0 instead of -O1

Hi, I want to build ffmpeg without optimization options, which means compiling flags uses O0 instead of O1-O3. I use the following command to build ffmpeg, where O1 is used in config.mak. ./configure --enable-debug --disable-optimizations .. I want to disable all optimization options to