No, unfortunately, opening the .lmp files 2nd time is not possible :( Fine, I'll use your recommended rate control method. 👍
On Fri, 1 Nov, 2024, 6:12 pm Ferdi Scholten, <fe...@sttc-nlp.nl> wrote: > Sorry for top-posting 🙏 > > My content is gaming content, and I record the gameplay in form of .lmp > > files. > > > > When a command ( which isn't related to ffmpeg ) is given from a batch > > file, the gameplay starts being played back. > > > > During the playing back of the gameplay, the audio and video are encoded > > simulataenously. > > > > So, even if I wish, I can't use 2 pass encoding. > > > > So, which option from the 2 should I stick to ? CVBR or ABR ? > > > > On Fri, 1 Nov, 2024, 3:35 pm Ferdi Scholten,<fe...@sttc-nlp.nl> wrote: > > > >> Also, in general case, for gaming content, between CVBR and ABR, which > >>> provides better quality at same filesizes ? > >>> > >>> On Wed, 30 Oct, 2024, 7:40 pm Ferdi Scholten,<fe...@sttc-nlp.nl> > wrote: > >>> > >>>> Okay, thank you sir. > >>>>> Should I keep the bufsize 5 times that of maxrate ? Will that help in > >>>>> effective allocation of bitrates ? Also, for getting the best > possible > >>>>> quality in this case, how high should be the value of bufsize ? What > is > >>>>> your recommendation ? > >>>>> > >>>>> (I use the slow preset for both x264 and x265 for getting better > >>>> quality > >>>>> at same filesizes btw). > >>>>> > >>>>> On Wed, 30 Oct, 2024, 6:25 pm Ferdi Scholten,<fe...@sttc-nlp.nl> > >> wrote: > >>>>>> If I set " -b:v 5000k -maxrate 6000k -minrate 4000k " for x264, x265 > >> and > >>>>>>> vvenc, will this enable VBR encoding for these three encoders ? > >>>>>>> _______________________________________________ > >>>>>>> > >>>>>> If "constrained VBR" is what you want then the answer is yes. > >>>>>> > >>>>>> It is not true VBR because it will never get below minrate or above > >>>>>> maxrate even if it would be possible/necessary for maintaining the > >>>>>> encoding quality > >>>>>> _______________________________________________ > >>>>>> > >>>> try to see it like this, the bufsize/maxrate is the frequency at which > >>>> ffmpeg checks for the need of changing the bitrate. > >>>> This is of course highly dependent on the type of content you have. > >>>> Detailed content with high motion and/or lots of scene changes will do > >>>> best with bufsize = maxrate, while for more static content bufsize can > >>>> be >= 5 times maxrate. > >>>> _______________________________________________ > >>>> > >> First, please stop top posting in this list! read the guidelines for > >> posting! > >> > >> Second to answer your question: It all depends on the content. There is > >> no general "best quality type of encoding" > >> > >> If you want the best quality for your given constraints (filesize and/or > >> bitrate) and you are not live streaming you should always use multiple > >> pass encoding, > >> if you are live streaming, read this: > >> https://trac.ffmpeg.org/wiki/StreamingGuide > >> > >> _______________________________________________ > >> > If you can replay the .lmp file more than once you can use multi pass > encoding. > > Otherwise I would use single pass cfr for encoding with the desired > quality, maybe with max-bitrate set. > -crf 16 is a good starting point if you want high quality encodes in x265 > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
