flv to ogg

Bob Elzer bob.elzer at gmail.com
Sat Apr 23 09:26:12 MST 2022 

OK, did you look at the output file when it stopped ? What was the size of
that ?  Did you try playing it, even if it didn't complete, if you can play
it, you will learn if the stuttering has stopped. Obviously saving videos
uncompressed isn't feasible. I would start looking at changing the settings
in OBS and using .mkv instead of .flv  I would make some short videos to
test the settings and see if you can create them without the stutter on
playback. Try cutting 10 minutes of the original file and saving it to
another file. try playing that which I think would still stutter, then try
uncompressing the shorter video. (only if you can't play the incomplete
file)
So you have two things to do, find the optimal settings and output for OBS
that you can play, and continue trying to convert your flv into a format
that you system can play. If you can't find optimal settings for OBS, then
I would think it is time to look at getting a better system to do video
processing, which I think would involve a video card/chip with hardware
acceleration.

On Fri, Apr 22, 2022 at 1:09 PM Michael via PLUG-discuss <
plug-discuss at lists.phxlinux.org> wrote:

> correction... of 210GB which df now says ffmpegfilled 166 GB in what I
> estimate was half hour to 45 minutes. I'll stop with my inname ramblings
> now.
>
> On Fri, Apr 22, 2022 at 4:01 PM Michael <bmike1 at gmail.com> wrote:
>
>> well now, It filled 91% of 310GB in about half an hour. Bummer What can I
>> do now?
>>
>> On Fri, Apr 22, 2022 at 3:31 PM Michael <bmike1 at gmail.com> wrote:
>>
>>> sosorry.... /home is full.... got it taken care of. only 9% full now
>>>
>>> On Fri, Apr 22, 2022 at 3:04 PM Michael <bmike1 at gmail.com> wrote:
>>>
>>>> I spoke too soon.... It seems it filled the root partition and didn't
>>>> put it in /home but it created /home/michael/Desktop/darktable
>>>> training/2022-04-02 darktabletraining.mov in /home. How can I tell if /home
>>>> is on my partition
>>>>
>>>> On Fri, Apr 22, 2022 at 2:56 PM Michael <bmike1 at gmail.com> wrote:
>>>>
>>>>> I got a problem. It says I ran out of room but df says I am not out of
>>>>> room:
>>>>>
>>>>> michael at michael-desktop:~/Desktop/darktable training$ ffmpeg -i
>>>>> '2022-04-02 darktabletraining.flv' -vcodec rawvideo -pix_fmt bgr24
>>>>> '2022-04-02 darktabletraining.mov'
>>>>> <cut>
>>>>> frame=54250 fps= 41 q=-0.0 size=146503168kB time=00:30:08.36
>>>>> bitrate=663668.8kbiframe=54263 fps= 41 q=-0.0 size=146538240kB
>>>>> time=00:30:08.78 bitrate=663671.1kbiframe=54300 fps= 41 q=-0.0
>>>>> size=146638336kB time=00:30:10.02
>>>>> bitrate=663670.5kbiav_interleaved_write_frame(): No space left on device
>>>>> <----
>>>>> Error writing trailer of 2022-04-02 darktabletraining.mov: No space
>>>>> left on device
>>>>> frame=54308 fps= 41 q=-0.0 Lsize=146659072kB time=00:30:10.30
>>>>> bitrate=663662.6kbits/s speed=1.36x
>>>>> video:146631600kB audio:28381kB subtitle:0kB other streams:0kB global
>>>>> headers:0kB muxing overhead: unknown
>>>>> [aac @ 0x55cb437537c0] Qavg: 244.916
>>>>> Conversion failed!
>>>>> michael at michael-desktop:~/Desktop/darktable training$ sudo df
>>>>> [sudo] password for michael:
>>>>> Filesystem     1K-blocks      Used Available Use% Mounted on
>>>>> udev             3844344         0   3844344   0% /dev
>>>>> tmpfs             778220      1496    776724   1% /run
>>>>> /dev/sda1       29168644  16265428  11398404  59% /
>>>>> tmpfs            3891100         0   3891100   0% /dev/shm
>>>>> tmpfs               5120         4      5116   1% /run/lock
>>>>> tmpfs            3891100         0   3891100   0% /sys/fs/cgroup
>>>>> /dev/sda5      200397080 190147672        92 100% /home
>>>>> tmpfs             778220        24    778196   1% /run/user/1000
>>>>> michael at michael-desktop:~/Desktop/darktable training$ ffmpeg -i
>>>>> '2022-04-02 darktabletraining.flv' -vcodec rawvideo -pix_fmt bgr24
>>>>> '2022-04-02 darktabletraining.mov'
>>>>>
>>>>>
>>>>>
>>>>> On Fri, Apr 22, 2022 at 2:18 PM Michael <bmike1 at gmail.com> wrote:
>>>>>
>>>>>> I get it, the .flv file is already small so don't convert it to mp4.
>>>>>> What do you recommend? I already tried to not convert it but the terminal
>>>>>> complained about the raw video option not being able to play with that file
>>>>>> format. Hmmmmm..... I suppose mov would work. No?
>>>>>>
>>>>>> On Thu, Apr 21, 2022 at 9:37 PM Snyder, Alexander J <
>>>>>> alexander at snyderfamily.co> wrote:
>>>>>>
>>>>>>> No. The "mp" in "mp4" stands for Moving Picture Experts Group
>>>>>>> (MPEG), which implies MPEG compression (*MPEG-4 Part 14*,
>>>>>>> specifically).
>>>>>>>
>>>>>>> Compression here is the opposite of what you're trying to achieve.
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Alexander
>>>>>>>
>>>>>>> Sent from my Samsung Galaxy S22+
>>>>>>>
>>>>>>> On Thu, Apr 21, 2022, 15:06 Michael via PLUG-discuss <
>>>>>>> plug-discuss at lists.phxlinux.org> wrote:
>>>>>>>
>>>>>>>> ffmpeg -i input.mp4 -vcodec rawvideo -pix_fmt bgr24 output.avi
>>>>>>>>
>>>>>>>> should be the one. but would
>>>>>>>>
>>>>>>>> ffmpeg -i input.flv -vcodec rawvideo -pix_fmt bgr24 output.mp4
>>>>>>>>
>>>>>>>> give me a conversion from flv (the original format) to mp4 with just a stream of pictures like we want?
>>>>>>>>
>>>>>>>>
>>>>>>>> On Thu, Apr 21, 2022 at 4:47 PM Michael <bmike1 at gmail.com> wrote:
>>>>>>>>
>>>>>>>>> would this work?
>>>>>>>>> https://www.quora.com/How-can-you-decompress-a-video-file-in-FFmpeg
>>>>>>>>>
>>>>>>>>> On Thu, Apr 21, 2022 at 4:40 PM Bob Elzer via PLUG-discuss <
>>>>>>>>> plug-discuss at lists.phxlinux.org> wrote:
>>>>>>>>>
>>>>>>>>>> OK, the file you are trying to convert is already as small as it
>>>>>>>>>> is going to get.    This from fileinfo.com:  Before 2007, OGG
>>>>>>>>>> files were used to store various types of media, but since then the
>>>>>>>>>> Xiph.Org Foundation recommends that OGG files store only audio data. Now,
>>>>>>>>>> you will most likely encounter only OGG files that store audio data
>>>>>>>>>> compressed with Vorbis compression.
>>>>>>>>>>
>>>>>>>>>> Since the file is already compressed the reason for your
>>>>>>>>>> stuttering is that the player is trying to uncompress while playing and
>>>>>>>>>> appears not to be powerful enough to do it smoothly.  I think what you
>>>>>>>>>> should be doing is uncompressing the file into its full uncompressed file
>>>>>>>>>> size, then the video player doesn't have to do the work any more. The
>>>>>>>>>> actual uncompress work would be done by ffmpeg which will probably take a
>>>>>>>>>> long time. Changing the scale might help, but trying to reconvert it to
>>>>>>>>>> another format is just going to make it bigger every time and probably
>>>>>>>>>> still stutter.
>>>>>>>>>>
>>>>>>>>>> Since I've never tried to uncompress a video file, I don't know
>>>>>>>>>> what the settings would be.  You have to do some googling to find that
>>>>>>>>>> ffmpeg uncompress video
>>>>>>>>>>
>>>>>>>>>> On Thu, Apr 21, 2022 at 11:56 AM Michael via PLUG-discuss <
>>>>>>>>>> plug-discuss at lists.phxlinux.org> wrote:
>>>>>>>>>>
>>>>>>>>>>> Okay.... these are the questions I will have concerning
>>>>>>>>>>> converting my flv to ogg while scaling the resolution.
>>>>>>>>>>> Is it as simple as stating:
>>>>>>>>>>> ffmpeg <in file>.flv -vf scale=-1:720 <out file>.ogg
>>>>>>>>>>> ?
>>>>>>>>>>> --
>>>>>>>>>>> :-)~MIKE~(-:
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>>>>>>>>>>> To subscribe, unsubscribe, or to change your mail settings:
>>>>>>>>>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
>>>>>>>>>>
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>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> :-)~MIKE~(-:
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> :-)~MIKE~(-:
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>>>>>>>> To subscribe, unsubscribe, or to change your mail settings:
>>>>>>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> --
>>>>>> :-)~MIKE~(-:
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> :-)~MIKE~(-:
>>>>>
>>>>
>>>>
>>>> --
>>>> :-)~MIKE~(-:
>>>>
>>>
>>>
>>> --
>>> :-)~MIKE~(-:
>>>
>>
>>
>> --
>> :-)~MIKE~(-:
>>
>
>
> --
> :-)~MIKE~(-:
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