Re: [FFmpeg-user] 4K Compression using x.265 issues
2018-11-15 17:57 GMT+01:00, Kieran O Leary : > On Thu, 15 Nov 2018, 16:53 Kieran O Leary >> On Thu, 15 Nov 2018, 16:36 Ron Barnes >> I was able to compress the file from 80GB to 27GB but I'm still having >>> major buffering issues. Would the commands below be the same for an MP4 >>> output? I have had better luck using MP4 instead of MKV. >>> >> >> You could replace the reserve_index_space 50k command with > Meant to say -movflags +faststart Or use qt-faststart from the tools directory if you have already created the mov/mp4 file without faststart. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
Thank you! -Original Message- From: ffmpeg-user On Behalf Of Paul B Mahol Sent: Friday, November 16, 2018 12:05 PM To: FFmpeg user questions Subject: Re: [FFmpeg-user] 4K Compression using x.265 issues On 11/16/18, Ron Barnes wrote: > Hi, > > When I remove the -c copy - get an error.. subtitle encoding currently > only possible from text to text or bitmap to bitmap.. then it just ends. > > Any way to preserve the subtitles? > Yes, use -c:s copy ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://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 http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
On 11/16/18, Ron Barnes wrote: > Hi, > > When I remove the -c copy - get an error.. subtitle encoding currently only > possible from text to text or bitmap to bitmap.. then it just ends. > > Any way to preserve the subtitles? > Yes, use -c:s copy ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
Hi, When I remove the -c copy - get an error.. subtitle encoding currently only possible from text to text or bitmap to bitmap.. then it just ends. Any way to preserve the subtitles? -Ron -Original Message- From: ffmpeg-user On Behalf Of Paul B Mahol Sent: Friday, November 16, 2018 9:02 AM To: FFmpeg user questions Subject: Re: [FFmpeg-user] 4K Compression using x.265 issues On 11/16/18, Ron Barnes wrote: > All, > > For some reason the below command is not working right. I am unable > to compress my movie by an significant amount. > The input movie (MYMOVIE.Mkv) is just over 55GB and the resulting > output is just over 53GB. > > I thought (and I am probably wrong) that by raising or lowering the > -crf value would increase or decrease the size of my output file. No > matter what value I use, be it 18 or 28, the output file size is always the > same. > > Can anyone determine where I'm going south in order to decrease the > files's footprint (size) yet still preserve the movie quality? > > I want to take all the audio streams (only audio) and I am converting > them to mp3 because I do not have a very good sound system and the > actual 7.1 audio stream sounds awful. > > ffmpeg -i "MYMOVIE.Mkv" -c:v libx265 -preset medium -map 0 -c:a:0 > libmp3lame > -b:a:0 128k -c copy -reserve_index_space 1000k -crf 28 -s 3840x2160 > -b:v 10M -ac 2 -c:a aac -b:a 128k -metadata title="MYMOVIE" > COMPRESSED_MYMOVIE.mkv Remove: -c copy. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://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 http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
On 11/16/18, Ron Barnes wrote: > All, > > For some reason the below command is not working right. I am unable to > compress my movie by an significant amount. > The input movie (MYMOVIE.Mkv) is just over 55GB and the resulting output is > just over 53GB. > > I thought (and I am probably wrong) that by raising or lowering the -crf > value would increase or decrease the size of my output file. No matter what > value I use, be it 18 or 28, the output file size is always the same. > > Can anyone determine where I'm going south in order to decrease the files's > footprint (size) yet still preserve the movie quality? > > I want to take all the audio streams (only audio) and I am converting them > to mp3 because I do not have a very good sound system and the actual 7.1 > audio stream sounds awful. > > ffmpeg -i "MYMOVIE.Mkv" -c:v libx265 -preset medium -map 0 -c:a:0 libmp3lame > -b:a:0 128k -c copy -reserve_index_space 1000k -crf 28 -s 3840x2160 -b:v 10M > -ac 2 -c:a aac -b:a 128k -metadata title="MYMOVIE" COMPRESSED_MYMOVIE.mkv Remove: -c copy. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
On Fri, 16 Nov 2018, 12:00 Ron Barnes All, > > For some reason the below command is not working right. I am unable to > compress my movie by an significant amount. > The input movie (MYMOVIE.Mkv) is just over 55GB and the resulting output > is just over 53GB. > > I thought (and I am probably wrong) that by raising or lowering the -crf > value would increase or decrease the size of my output file. No matter > what value I use, be it 18 or 28, the output file size is always the same. > > Can anyone determine where I'm going south in order to decrease the > files's footprint (size) yet still preserve the movie quality Yes,you are manually setting the bitrate with your -b:v 10M command. Remove that and try again. Best, Kieran ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] 4K Compression using x.265 issues
All, For some reason the below command is not working right. I am unable to compress my movie by an significant amount. The input movie (MYMOVIE.Mkv) is just over 55GB and the resulting output is just over 53GB. I thought (and I am probably wrong) that by raising or lowering the -crf value would increase or decrease the size of my output file. No matter what value I use, be it 18 or 28, the output file size is always the same. Can anyone determine where I'm going south in order to decrease the files's footprint (size) yet still preserve the movie quality? I want to take all the audio streams (only audio) and I am converting them to mp3 because I do not have a very good sound system and the actual 7.1 audio stream sounds awful. ffmpeg -i "MYMOVIE.Mkv" -c:v libx265 -preset medium -map 0 -c:a:0 libmp3lame -b:a:0 128k -c copy -reserve_index_space 1000k -crf 28 -s 3840x2160 -b:v 10M -ac 2 -c:a aac -b:a 128k -metadata title="MYMOVIE" COMPRESSED_MYMOVIE.mkv Thank you, -Ron ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
Thank you Kieran! -Original Message- From: ffmpeg-user On Behalf Of Kieran O Leary Sent: Thursday, November 15, 2018 11:57 AM To: FFmpeg user questions Subject: Re: [FFmpeg-user] 4K Compression using x.265 issues On Thu, 15 Nov 2018, 16:53 Kieran O Leary > > On Thu, 15 Nov 2018, 16:36 Ron Barnes >> Hi Kieran, >> >> I was able to compress the file from 80GB to 27GB but I'm still >> having major buffering issues. Would the commands below be the same >> for an MP4 output? I have had better luck using MP4 instead of MKV. >> > > You could replace the reserve_index_space 50k command with -movflags > +fast start > > If using MP4 or mov. > > Best, > > Kieran > Meant to say -movflags +faststart Sorry :( Best, Kieran ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://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 http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
On Thu, 15 Nov 2018, 16:53 Kieran O Leary > > On Thu, 15 Nov 2018, 16:36 Ron Barnes >> Hi Kieran, >> >> I was able to compress the file from 80GB to 27GB but I'm still having >> major buffering issues. Would the commands below be the same for an MP4 >> output? I have had better luck using MP4 instead of MKV. >> > > You could replace the reserve_index_space 50k command with > -movflags +fast start > > If using MP4 or mov. > > Best, > > Kieran > Meant to say -movflags +faststart Sorry :( Best, Kieran ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
On Thu, 15 Nov 2018, 16:36 Ron Barnes Hi Kieran, > > I was able to compress the file from 80GB to 27GB but I'm still having > major buffering issues. Would the commands below be the same for an MP4 > output? I have had better luck using MP4 instead of MKV. > You could replace the reserve_index_space 50k command with -movflags +fast start If using MP4 or mov. Best, Kieran > Thanks, > -Ron > > -Original Message- > From: ffmpeg-user On Behalf Of Kieran O > Leary > Sent: Thursday, November 15, 2018 8:34 AM > To: FFmpeg user questions > Subject: Re: [FFmpeg-user] 4K Compression using x.265 issues > > I should have proof-read better. I have many typos in here, but the worse > is my broken command where I said -ar 2 instead of -ac 2 > > Also I meant to say that I wasn't sure if downsampling will increase the > volume levels, as I don't know enough about audio . > > So overall, your command would be something like (i haven't tested this): > ffmpeg -i "YDXJ0085.MP4" -c:v libx265 -preset medium -map 0 > -reserve_index_space 50k -crf 22 -s 3840x2160 -b:v 10M -ac 2 -c:a aac -b:a > 128k -metadata title="Juliana - Disney 8-12-2018" > Disney_Vac_1.mkv > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://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 > http://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 http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
Hi Kieran, I was able to compress the file from 80GB to 27GB but I'm still having major buffering issues. Would the commands below be the same for an MP4 output? I have had better luck using MP4 instead of MKV. Thanks, -Ron -Original Message- From: ffmpeg-user On Behalf Of Kieran O Leary Sent: Thursday, November 15, 2018 8:34 AM To: FFmpeg user questions Subject: Re: [FFmpeg-user] 4K Compression using x.265 issues I should have proof-read better. I have many typos in here, but the worse is my broken command where I said -ar 2 instead of -ac 2 Also I meant to say that I wasn't sure if downsampling will increase the volume levels, as I don't know enough about audio . So overall, your command would be something like (i haven't tested this): ffmpeg -i "YDXJ0085.MP4" -c:v libx265 -preset medium -map 0 -reserve_index_space 50k -crf 22 -s 3840x2160 -b:v 10M -ac 2 -c:a aac -b:a 128k -metadata title="Juliana - Disney 8-12-2018" Disney_Vac_1.mkv ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://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 http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
Thank you Kieran! I will try the below command and thank you so much! -Ron -Original Message- From: ffmpeg-user On Behalf Of Kieran O Leary Sent: Thursday, November 15, 2018 8:31 AM To: FFmpeg user questions Subject: Re: [FFmpeg-user] 4K Compression using x.265 issues Hi, On Thu, Nov 15, 2018 at 12:49 PM Ron Barnes wrote: > > Hello All, > > First off, thank you to anyone for your time and attention to my email! > > I have 3 issues I'm trying to solve. > > First, I have a 4K home video taken with my YI action cam. It is an 80GB > video captured @ 4k 30/FPS. I really want to share it via Plex to the family > but at that size and my bandwidth, it's not going very well. > > I'm trying to solve this issue with the following command. > > ffmpeg -i "YDXJ0085.MP4" -c:v libx265 -preset medium -crf 22 -s > 3840x2160 -b:v 10M -c:a aac -b:a 128k -metadata title="Juliana - > Disney 8-12-2018" Disney_Vac_1.mkv > > it did indeed compress the video down to a manageable 10GB but it is still > having streaming issues. I have searched the net for a solution and I think > I need to set a bit (or something) to indicate that the file should be > streamed and not downloaded. Not sure if that’s correct. It seems that in Matroska, the flag to use is -reserve_index_space. https://ffmpeg.org/ffmpeg-formats.html#Options-7 has official info, and this page has a real-world command - https://superuser.com/questions/1190153/make-mkv-file-suitable-for-streaming-with-ffmpeg-or-avconv-how-to-move-all-m It seems that a value of 50k is suitable for an hour, but you might want to experiment with increasing that. > Can anyone offer any advice for this? > Also, is there a way to have the original frame height and width used instead > of specifying it? Can you share the full, uncut terminal output? You should not have to specify this at all, ffmpeg will retain the width and height. If it is not, something is going wrong and the terminal output will let us know what is the issue. > > Second, I have a movie that I want to convert and it has 15 different audio > streams and I am not able to convert the movie and preserve all the audio > streams. I only get the first one and it's not the one I want. > You should ass -map 0 to your command. https://trac.ffmpeg.org/wiki/Map > Third (related to second), I would like to convert the audio streams from 7.1 > to just stereo as I do not have a fancy sound system and the audio volume is > way to low (I think it is just playing the center channel). > I don't know enough about audio to know what is happening here, like will just downsampling to stereo increase audio? Anyhow, this wiki has info: https://trac.ffmpeg.org/wiki/AudioChannelManipulation , it seems like you can just add -ac 2 to your command. So overall, your command would be something like (i haven't tested this): ffmpeg -i "YDXJ0085.MP4" -c:v libx265 -preset medium -map 0 -reserve_index_space 50k -crf 22 -s 3840x2160 -b:v 10M -ar 2 -c:a aac -b:a 128k -metadata title="Juliana - Disney 8-12-2018" Disney_Vac_1.mkv Best, Kieran > Thanks, > > -Ron > > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://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 http://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 http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
I should have proof-read better. I have many typos in here, but the worse is my broken command where I said -ar 2 instead of -ac 2 Also I meant to say that I wasn't sure if downsampling will increase the volume levels, as I don't know enough about audio . So overall, your command would be something like (i haven't tested this): ffmpeg -i "YDXJ0085.MP4" -c:v libx265 -preset medium -map 0 -reserve_index_space 50k -crf 22 -s 3840x2160 -b:v 10M -ac 2 -c:a aac -b:a 128k -metadata title="Juliana - Disney 8-12-2018" Disney_Vac_1.mkv ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 4K Compression using x.265 issues
Hi, On Thu, Nov 15, 2018 at 12:49 PM Ron Barnes wrote: > > Hello All, > > First off, thank you to anyone for your time and attention to my email! > > I have 3 issues I'm trying to solve. > > First, I have a 4K home video taken with my YI action cam. It is an 80GB > video captured @ 4k 30/FPS. I really want to share it via Plex to the family > but at that size and my bandwidth, it's not going very well. > > I'm trying to solve this issue with the following command. > > ffmpeg -i "YDXJ0085.MP4" -c:v libx265 -preset medium -crf 22 -s 3840x2160 > -b:v 10M -c:a aac -b:a 128k -metadata title="Juliana - Disney 8-12-2018" > Disney_Vac_1.mkv > > it did indeed compress the video down to a manageable 10GB but it is still > having streaming issues. I have searched the net for a solution and I think > I need to set a bit (or something) to indicate that the file should be > streamed and not downloaded. Not sure if that’s correct. It seems that in Matroska, the flag to use is -reserve_index_space. https://ffmpeg.org/ffmpeg-formats.html#Options-7 has official info, and this page has a real-world command - https://superuser.com/questions/1190153/make-mkv-file-suitable-for-streaming-with-ffmpeg-or-avconv-how-to-move-all-m It seems that a value of 50k is suitable for an hour, but you might want to experiment with increasing that. > Can anyone offer any advice for this? > Also, is there a way to have the original frame height and width used instead > of specifying it? Can you share the full, uncut terminal output? You should not have to specify this at all, ffmpeg will retain the width and height. If it is not, something is going wrong and the terminal output will let us know what is the issue. > > Second, I have a movie that I want to convert and it has 15 different audio > streams and I am not able to convert the movie and preserve all the audio > streams. I only get the first one and it's not the one I want. > You should ass -map 0 to your command. https://trac.ffmpeg.org/wiki/Map > Third (related to second), I would like to convert the audio streams from 7.1 > to just stereo as I do not have a fancy sound system and the audio volume is > way to low (I think it is just playing the center channel). > I don't know enough about audio to know what is happening here, like will just downsampling to stereo increase audio? Anyhow, this wiki has info: https://trac.ffmpeg.org/wiki/AudioChannelManipulation , it seems like you can just add -ac 2 to your command. So overall, your command would be something like (i haven't tested this): ffmpeg -i "YDXJ0085.MP4" -c:v libx265 -preset medium -map 0 -reserve_index_space 50k -crf 22 -s 3840x2160 -b:v 10M -ar 2 -c:a aac -b:a 128k -metadata title="Juliana - Disney 8-12-2018" Disney_Vac_1.mkv Best, Kieran > Thanks, > > -Ron > > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://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 http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] 4K Compression using x.265 issues
Hello All, First off, thank you to anyone for your time and attention to my email! I have 3 issues I'm trying to solve. First, I have a 4K home video taken with my YI action cam. It is an 80GB video captured @ 4k 30/FPS. I really want to share it via Plex to the family but at that size and my bandwidth, it's not going very well. I'm trying to solve this issue with the following command. ffmpeg -i "YDXJ0085.MP4" -c:v libx265 -preset medium -crf 22 -s 3840x2160 -b:v 10M -c:a aac -b:a 128k -metadata title="Juliana - Disney 8-12-2018" Disney_Vac_1.mkv it did indeed compress the video down to a manageable 10GB but it is still having streaming issues. I have searched the net for a solution and I think I need to set a bit (or something) to indicate that the file should be streamed and not downloaded. Not sure if that’s correct. Can anyone offer any advice for this? Also, is there a way to have the original frame height and width used instead of specifying it? Second, I have a movie that I want to convert and it has 15 different audio streams and I am not able to convert the movie and preserve all the audio streams. I only get the first one and it's not the one I want. Third (related to second), I would like to convert the audio streams from 7.1 to just stereo as I do not have a fancy sound system and the audio volume is way to low (I think it is just playing the center channel). Thanks, -Ron ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
