CBR Coding with force_key frames

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CBR Coding with force_key frames

Nick
Can it happen that force_key_frames option will destroy a good cbr
2-pass coding?
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Re: CBR Coding with force_key frames

Carl Eugen Hoyos-2
2019-04-09 11:59 GMT+02:00, Nick <[hidden email]>:
> Can it happen that force_key_frames option will destroy a
> good cbr 2-pass coding?

Command lines and complete, uncut console output missing.

(Changing parameters over passes will affect quality.)

Carl Eugen
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Re: CBR Coding with force_key frames

saurav suman
Hi Carl,

As required please find the attached file.
I have shared the console command (copied from the CMD prompt) and Batch
file in notepad(.bat file to call the ffmpeg.exe file) . Unable to attach
the error log file because it is empty(0 bytes)

File1: Console_CMD[1] : command copied from the command prompt in
Notpad(text format).
File2: BatchFile(FFmpeg call) : Copied batch file command in Notepad(text
format)

Regards,
Saurav

On Tue, Apr 9, 2019 at 5:17 PM Carl Eugen Hoyos <[hidden email]> wrote:

> 2019-04-09 11:59 GMT+02:00, Nick <[hidden email]>:
> > Can it happen that force_key_frames option will destroy a
> > good cbr 2-pass coding?
>
> Command lines and complete, uncut console output missing.
>
> (Changing parameters over passes will affect quality.)
>
> Carl Eugen
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> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
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> [hidden email] with subject "unsubscribe".

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Console_CMD[1].txt (644 bytes) Download Attachment
BatchFile(FFmpeg call).txt (278 bytes) Download Attachment
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Re: CBR Coding with force_key frames

kumowoon1025
Set the verbosity level lower (higher?), try -v info instead of -v error. That might be suppressing everything except errors.
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Re: CBR Coding with force_key frames

saurav suman
Hi Ted,

Thank you for responding, I tried after changing the command to -v info and
got some output. I am sharing the information file. Could you please check
it once.

Regards,
Saurav

On Wed, Apr 10, 2019 at 12:34 AM Ted Park <[hidden email]> wrote:

> Set the verbosity level lower (higher?), try -v info instead of -v error.
> That might be suppressing everything except errors.
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error.log (8K) Download Attachment
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Re: CBR Coding with force_key frames

kumowoon1025
> Thank you for responding, I tried after changing the command to -v info and
> got some output. I am sharing the information file. Could you please check
> it once.

Nothing seems out of order, what did you mean when you said “destroy a good cbr 2-pass coding”? It seems like the video was decoded without problem, I might be missing something though, what did you intend for your batch file to do?
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