Re: [FFmpeg-user] Reduce ffmpeg response
Jim, Thank you very much for your assistance. Thank you also for letting me know I was off topic. We ended up figuring it out, went into the library code and added a line dealing with stdout (I don't recall the syntax). Thanks again Jeff On Sun, Nov 8, 2020 at 1:40 PM Jim DeLaHunt wrote: > On 2020-11-08 08:42, Jeff England wrote: > > > …Developing code in a Linux / Python environment, using Pydub and ffmpeg > to > > play .mp3 sound. > > I would like to "quiet" the response from ffmpeg. I've found a number of > > posts along the lines of > > ffmpeg -hide_banner -loglevel panic. I'm having difficulty knowing > exactly > > where to place > > the ffmpeg -hide_banner -loglevel panic (or the like) command. I've > tried > > it following the > > import AudioSegment > > from pydub.playback statement and in the programming where the sound is > > actually called. > > > > Any thoughts or guidance is appreciated. > > Hello, Jeff, and welcome to the FFmpeg users list. You ask an > interesting question. > > It sounds like you are using the Python module Pydub[1] to do audio > editing. Pydub offers an API of audio editing actions, it uses Python > code for the logic to convert those editing actions into calls to FFmpeg > or libav, and it can call FFmpeg behind the scenes to actually > manipulate the audio data. It sounds like the FFmpeg invocations > generate more text on its stdout than you want, and you want to reduce > the amount of text which FFmpeg puts to its stdout. > > I don't know Pydub, but I do know Python and FFmepg, and I have written > Python code which calls FFmpeg behind the scenes to actually manipulate > the video data. > > An important thing to bear in mind is that Pydub exists in a Python > environment, and FFmpeg exists outside that environment. You need to be > clear what is happening in which environment. > > In reading the Pydub API docs[2], I see no way to manipulate FFmpeg > directly. The AudioSegment(…).export() call[3] does have a `parameters` > keyword argument, which is a list of options for Pydub to include in the > FFmpeg invocation. The docs says, "These are added to the end of the > call (in the output file section)." It doesn't say there is a way to put > those parameters somewhere else. I don't see any other places in the API > which lets the caller send parameters to the FFmpeg invocation. And of > course, the Pydub API docs might not be complete. > > So, the first question is, which Pydub API call are you using? > > Second, in what way do you see the FFmpeg output to its stdout? Does > Pydub return this to you? I don't see a mention of this in the API > docs. You should describe how you are calling Pydub, and what results > you see, and what results you would like to see. > > Third, be aware that Pydub might not give you the control you are after. > > Fourth, be aware that Pydub is a bit off-topic for this list. Anything > about Pydub and the way it creates an invocation of FFmpeg are > off-topic. Questions you can phrase in terms of a command-line > invocation of FFmpeg are where you start to be on-topic for this list. > Nevertheless, you might still get a bit of help with the Pydub and > Python parts of your situation. > > [1] http://pydub.com/ > > [2] https://github.com/jiaaro/pydub/blob/master/API.markdown > > [3] > https://github.com/jiaaro/pydub/blob/master/API.markdown#audiosegmentexport > > Hope this helps, > —Jim DeLaHunt, software engineer, Vancouver, Canada > > > ___ > 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".
Re: [FFmpeg-user] Reduce ffmpeg response
On 2020-11-08 08:42, Jeff England wrote: …Developing code in a Linux / Python environment, using Pydub and ffmpeg to play .mp3 sound. I would like to "quiet" the response from ffmpeg. I've found a number of posts along the lines of ffmpeg -hide_banner -loglevel panic. I'm having difficulty knowing exactly where to place the ffmpeg -hide_banner -loglevel panic (or the like) command. I've tried it following the import AudioSegment from pydub.playback statement and in the programming where the sound is actually called. Any thoughts or guidance is appreciated. Hello, Jeff, and welcome to the FFmpeg users list. You ask an interesting question. It sounds like you are using the Python module Pydub[1] to do audio editing. Pydub offers an API of audio editing actions, it uses Python code for the logic to convert those editing actions into calls to FFmpeg or libav, and it can call FFmpeg behind the scenes to actually manipulate the audio data. It sounds like the FFmpeg invocations generate more text on its stdout than you want, and you want to reduce the amount of text which FFmpeg puts to its stdout. I don't know Pydub, but I do know Python and FFmepg, and I have written Python code which calls FFmpeg behind the scenes to actually manipulate the video data. An important thing to bear in mind is that Pydub exists in a Python environment, and FFmpeg exists outside that environment. You need to be clear what is happening in which environment. In reading the Pydub API docs[2], I see no way to manipulate FFmpeg directly. The AudioSegment(…).export() call[3] does have a `parameters` keyword argument, which is a list of options for Pydub to include in the FFmpeg invocation. The docs says, "These are added to the end of the call (in the output file section)." It doesn't say there is a way to put those parameters somewhere else. I don't see any other places in the API which lets the caller send parameters to the FFmpeg invocation. And of course, the Pydub API docs might not be complete. So, the first question is, which Pydub API call are you using? Second, in what way do you see the FFmpeg output to its stdout? Does Pydub return this to you? I don't see a mention of this in the API docs. You should describe how you are calling Pydub, and what results you see, and what results you would like to see. Third, be aware that Pydub might not give you the control you are after. Fourth, be aware that Pydub is a bit off-topic for this list. Anything about Pydub and the way it creates an invocation of FFmpeg are off-topic. Questions you can phrase in terms of a command-line invocation of FFmpeg are where you start to be on-topic for this list. Nevertheless, you might still get a bit of help with the Pydub and Python parts of your situation. [1] http://pydub.com/ [2] https://github.com/jiaaro/pydub/blob/master/API.markdown [3] https://github.com/jiaaro/pydub/blob/master/API.markdown#audiosegmentexport Hope this helps, —Jim DeLaHunt, software engineer, Vancouver, Canada ___ 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".
Re: [FFmpeg-user] Reduce ffmpeg response
Am So., 8. Nov. 2020 um 17:42 Uhr schrieb Jeff England : > > I've found a number of posts along the lines of ffmpeg -hide_banner > -loglevel panic. I'm having difficulty knowing exactly where to place > the ffmpeg -hide_banner -loglevel panic (or the like) command. Both options can be placed anywhere on the command line. Remember not to use -hide_banner and not to use a lower-than-default loglevel when asking for help here and providing the command line including complete, uncut console output (as is required). Carl Eugen ___ 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] Reduce ffmpeg response
Hi, I'm new to ffmpeg, so if this question has already been covered, may you be kind enough to point me to the correct archive. Developing code in a Linux / Python environment, using Pydub and ffmpeg to play .mp3 sound. I would like to "quiet" the response from ffmpeg. I've found a number of posts along the lines of ffmpeg -hide_banner -loglevel panic. I'm having difficulty knowing exactly where to place the ffmpeg -hide_banner -loglevel panic (or the like) command. I've tried it following the import AudioSegment from pydub.playback statement and in the programming where the sound is actually called. Any thoughts or guidance is appreciated. Thanks ___ 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".
