Suppose a high quality, uncompressed video is re-encoded twice, with almost identical encoding settings at a relatively low bitrate of 4mbps, but at different resolutions, first at 1080p, and then at ...
I've read the file "The SD x264 TV Releasing Standards 2012" (link), which is what a lot of "pirate" groups have agreed upon in terms of encoding options. The relevant parts are Audio, Framerate, ...
I've got an H264 video (Stored in an MP4 file). Each GOP is approx 10s long. I want to trim the first couple of seconds off the video, which means I need to split the first GOP. Is there a way to do ...
ffmpeg -i IMG_9353.JPG -pix_fmt yuv420p -y qqq.y4m x264 qqq.y4m --preset placebo --tune stillimage --crf 33 -o qqq.mkv How to extract the picture now? qqq.mkv is non-empty, size depends on "crf" ...