[FFmpeg-user] Reencoding from H.264 to H.265

2016-09-01 Thread SDSS
After some googling I was able to find out how to use ffmpeg to convert MKV videos in H.264 format to MKV videos in H.265 format. I looked into this because I have a lot of H.264 videos, which I would like to reduce in size, as H.265 can reportedly do. However, in my search I also found out that,

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-01 Thread Nicolas George
Le quintidi 15 fructidor, an CCXXIV, SDSS a écrit : > However, in my search I also found out that, according to many, re-encoding > H.264 videos as H.265 is a waste of time, for the most part, on the grounds > that H.264 videos are already compressed, and re-encoding them as H.265 > won't achieve m

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-01 Thread Sven C. Dack
Hello, it seems my first e-mail got lost, which is why I am writing a second one. If there is an issue with the moderation then please apologize for the duplicate... On the subject... I've been doing just that. Transcoding H.264 videos into H.265, scaling these down to 480p and reducing the b

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-02 Thread Peter White
02.09.2016, 08:50, Sven C. Dack: > Hello, > > On the subject... I've been doing just that. Transcoding H.264 > videos into H.265, scaling these down to 480p and reducing the > bitrate to about 1mbit/s. Well, the size reduction is obviously due to the smaller image dimensions and not because

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-02 Thread Sven C. Dack
Hello Peter, I was not arguing. I was stating what I was doing. Your suggestions are however welcome. Sven On 02/09/16 12:29, Peter White wrote: 02.09.2016, 08:50, Sven C. Dack: > Hello, > > On the subject... I've been doing just that. Transcoding H.264 > videos into H.265, scaling thes

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-04 Thread Sven C. Dack
On 02/09/16 17:28, Sven C. Dack wrote: Hello Peter, I was not arguing. I was stating what I was doing. Your suggestions are however welcome. Sven I now had the time to follow up on your suggestions, Peter. There are a few things I need to note first... The Nvidia hardware encoder NVENC do

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-04 Thread Peter White
Hi, 04.09.2016 20:40, Sven C. Dack: > On 02/09/16 17:28, Sven C. Dack wrote: > > There are a few things I need to note first... The Nvidia hardware > encoder NVENC doesn't accept a "-crf" value Why do you have to use it then for this? I get that you use it in your day to day encoding but since t

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-04 Thread Sven C. Dack
On 04/09/16 21:13, Peter White wrote: Hi, 04.09.2016 20:40, Sven C. Dack: ... > *** Please note that this is _NOT_ a comparison of encoders, but it is > meant to show the effect of the (down-)scaling filters on reencoding. > *** But what effects? I am not sure how I can help you. If you still

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-04 Thread Peter White
04.09.2016 23:09, Sven C. Dack: > On 04/09/16 21:13, Peter White wrote: >> Hi, >> >> 04.09.2016 20:40, Sven C. Dack: >> ... >> > *** Please note that this is _NOT_ a comparison of encoders, but it is >> > meant to show the effect of the (down-)scaling filters on reencoding. >> > *** >> >> But what

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-04 Thread Sven C. Dack
On 04/09/16 22:52, Peter White wrote: ... So you showed that they have an effect. Acknowledged. My question had a follow-up, though. Your conclusions are not correct. The best scaler is the one producing the best visual quality *before* compression. ... I am glad you could see the effect after

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-04 Thread Peter White
05.09.2016 00:58, Sven C. Dack: On 04/09/16 22:52, Peter White wrote: ... So you showed that they have an effect. Acknowledged. My question had a follow-up, though. Your conclusions are not correct. The best scaler is the one producing the best visual quality *before* compression. ... I am gla

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-04 Thread Sven C. Dack
On 05/09/16 00:55, Peter White wrote: ... LOL, never said otherwise. Actually you did. You have asked "What effects?" If you are not being serious then why are you on this mailing list? Sven ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-05 Thread Peter White
05.09.2016 08:34, Sven C. Dack: On 05/09/16 00:55, Peter White wrote: ... LOL, never said otherwise. Actually you did. You have asked "What effects?" And I gave the "answer" straight away, that there is no answer with your methodology. And I did expressly acknowledge the size/bitrate differe

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-05 Thread Sven C. Dack
On 05/09/16 10:21, Peter White wrote: What now? One LOL and I am not serious? You made the joke. So you have no real interest in being here. Have it your way. I will put you on an ignore list. Fine by me. Sven ___ ffmpeg-user mailing list ffmpeg

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-05 Thread Peter White
05.09.2016 12:00, Sven C. Dack: On 05/09/16 10:21, Peter White wrote: What now? One LOL and I am not serious? You made the joke. So you have no real interest in being here. Have it your way. I will put you on an ignore list. Fine by me. What is this, kindergarten? Fine, do that, if you thin

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-05 Thread Reindl Harald
Am 05.09.2016 um 12:00 schrieb Sven C. Dack: On 05/09/16 10:21, Peter White wrote: What now? One LOL and I am not serious? You made the joke. So you have no real interest in being here. Have it your way. I will put you on an ignore list. Fine by me. what's wrong with you? signature.asc

Re: [FFmpeg-user] Reencoding from H.264 to H.265

2016-09-05 Thread Sven C. Dack
On 05/09/16 12:44, Reindl Harald wrote: Am 05.09.2016 um 12:00 schrieb Sven C. Dack: On 05/09/16 10:21, Peter White wrote: What now? One LOL and I am not serious? You made the joke. So you have no real interest in being here. Have it your way. I will put you on an ignore list. Fine by me.