[FFmpeg-user] h264 lossless grayscale

2015-04-23 Thread Marco Porsch
Hi, when encoding an 8bit grayscale video using the commandline # ffmpeg.exe -f rawvideo -vcodec rawvideo -pix_fmt gray -s 1280x960 -r 30 -i out8.yuv -c:v libx264 -qp 0 -preset ultrafast -y out8.mkv and decoding using # ffmpeg.exe -i out8.mkv -f rawvideo -c:v rawvideo -pix_fmt gray -y

Re: [FFmpeg-user] --enable-freior ignored

2015-04-23 Thread Roger Pack
On 4/23/15, Carl Eugen Hoyos ceho...@ag.or.at wrote: Roger Pack rogerdpack2 at gmail.com writes: however, got a note that with --enable-frei0r if it fails, it fails fails silently This is not true here. $ ./configure --enable-frei0r --enable-gpl ERROR: frei0r.h header not found Yeah,

[FFmpeg-user] apad filter in a chain of filters?

2015-04-23 Thread Martin Schmidt
Hi, my input is a video with an included audio track. I need to convert the video to a prores quicktime and extend the audio track to the length of the video. In the ffmpeg documentation I found the apad filter. Since I need to apply several filters I am using filter_complex to create a chain

Re: [FFmpeg-user] apad filter in a chain of filters?

2015-04-23 Thread Nicolas George
Le quartidi 4 floréal, an CCXXIII, Martin Schmidt a écrit : -filter_complex [0:v]setpts=((24000/1001)/24)*PTS[outv];[0:a]apad[padded];[padded]atempo=(24/(24000/1001))[outa] Your filter graph is not connected (setpts and apad+atempo are not connected together by any link). This is not a good