Error Text Resampling With Input Channels Greater Than 2 Unsupported
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Super User Questions Tags Users Badges Unanswered Ask Question _ Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Converting a .mp4 file throws “Resampling with input channels greater than 2 unsupported.” error up vote 0 down vote favorite I am trying to convert a mp4 file into flv with 2 audio channels & sample rate of 44.1 Khz (because .flv does not allow higher than that). Here is the pastebin for the error. As seen from the console output, I am using the latst build of ffmpeg. audio ffmpeg flv resampling share|improve this question asked Feb 5 '11 at 4:20 Chantz 1287 migrated from stackoverflow.com Feb 5 '11 at 5:59 This question came from our site for professional and enthusiast programmers. add a comment| 3 Answers 3 active oldest votes up vote 2 down vote The problem is you are resampling. Ffmpeg doesn't support resampling for 5+1 input channels, only for mono and stereo. Try converting it without specifying a sample rate and it might work. So try omitting the sample rate, that way the audio won't be resampled. Alternatively you might try just copying the audio stream (use -vcodec copy). Again the audio won't be resampled. You might also try first converting it to 2 channels intermediate file, and then resampling, but I'm not sure if this will work. share|improve this answer answered Feb 6 '11 at 10:25 sashoalm 87731335 Ok. I think the problem if I dont mention any sample rate is that flv supports only 3 audio sample rates, 44.1 Khx being the highest. If I dont mention it might cause an error on unsupported sampling rate. –Chantz Feb 9 '11 at 15:46 Actually I just checked it out and gave the error when I did n
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Converting 6 audio channels to 2 in ffmpeg up vote 4 down vote favorite http://superuser.com/questions/241930/converting-a-mp4-file-throws-resampling-with-input-channels-greater-than-2-uns 1 Im doing a 2 pass encode on the uploads to my site. Unfortunately when a user uploads a 6 audio channel .mkv files (5.1 surround), ffmpeg spits out the following error: Resampling with input channels greater than 2 unsupported. Im running the latest version of ffmpeg. Doing -ac 6 instead of the usual - ac 2 proceeds with the encoding, but it just creates a larger file with useless http://stackoverflow.com/questions/4790818/converting-6-audio-channels-to-2-in-ffmpeg data, as well as creates another step in the already long file processing script, and I'd rather avoid modifying the conversion command. Is there anything I can do to make -ac 2 actually work? ffmpeg share|improve this question asked Jan 25 '11 at 7:04 user15063 1 Not programming-related - belongs on superuser.com –Paul R Jan 25 '11 at 9:45 @Paul It seems that OP trying to solve this problem by any means including modify ffmpeg source code. At this level superusers won't much helpful. –9dan Jan 25 '11 at 17:02 1 the latest version of ffmpeg will do –Kuncevic Apr 24 '13 at 3:37 add a comment| 4 Answers 4 active oldest votes up vote 1 down vote It is a known bug/limitation of current ffmpeg. In my experience I concluded that it can't be done with ffmpeg alone. You have to transcode audio/video separately. 1) extract .wav file from the source movie. 2) resample to 2ch stereo with audio editing tool such as Audacity. 3) encode audio stream 3) transcode video stream 4) mux audio/video to target format share|improve this answer answered Jan 25 '11 at 8:13 9dan 3,11211631 I found this patch, but its for an older version of ffmpeg lists.mplayerhq.hu/pipermail/ffmpe
In all the hoopla of iPhone App Store and video rentals, Apple has apparently lost focus on one of the core jobs of iTunes - Convert & Sync content to iPods and iPhone. Try converting a video to iPod foirmat in iTunes and http://woikr.com/apple/how-to-convert-videos-for-ipod-and-iphone-guides/ you will know what I am saying. This is where 3rd party software come handy. Videora iPod video converter is a tool to convert videos to iPod (and many other devices) format. It is one of the very few free apps which https://zone.ni.com/reference/en-XX/help/372416K-01/sndvibtk/sv_error_codes/ enable us to accomplish this task. The interface for Videora is not very intuitive. A newbie can always get lost as to where to click, how to create and manage queue etc. This tutorial will help you convert videos into iPod & iPhone error text format using version 3.07 of this software. Download and install Videora iPod Video Converter. On the first run, you will be asked to select your iPod model. You can select any one as we will not be using this setting to convert our videos. Create Profiles: Once you reach the home screen, click Settings in the Menu bar. On the settings page, click on New Profile. In the dialog box which appears, enter the profile name iPod 4:3. Leave the rest of the fields intact and error text resampling click on Video in the Menu Bar. Make sure the Video Codec is H.264 & Max Resolution is 320×240. Also, the bitrate should be 768 kbps. Once done, click on Audio in the menu bar. Change the bitrate to 160. Click on OK once done. Repeat the above steps and create a new profile named "iPod 16:9" in step 3 with Max Resolution 320×180 (you will have to type it in) in step 4. Everything else remains the same. Set defaults: Under Settings, click on the Converter tab. Here, select a default output folder for your converted videos. Make sure to select a folder with some amount of free space. Also, select the default profile as "iPod 16:9" you created in the steps above. In the screen above, you can also select the CPU usage while converting the videos. Once finished, click on Save settings. Start Converting: Click on Video File tab under Convert. This will bring you to a screen below. Ignore the instructions appearing in the space above the screen. Click on Select File to browse & select the file you want to convert. Click on Browse to select the output directory where you want to save the converted video. Enter a Title for the converted video. Select your device in the drop down. If the video is in wide screen format (two black strips on top and bottom - most new videos are wide screen), select the profile iPod 16:9. Otherwise select iPod 4:3. Now you have 2 options. You can eith
Part Number: 372416K-01 »View Product Info Download Help (Windows Only) The Sound and Vibration VIs can return the following error codes. Refer to the KnowledgeBase for more information about correcting errors in LabVIEW. Code Description −21421 Required attributes are missing from the input speed profile waveform. Use OAT Convert Speed XY Graph to Waveform VI to create the speed profile waveform. −21420 You cannot perform period measurement when you measure digital tachometer signals on an NI CompactDAQ chassis. You must use event counting for this type of application. −21419 Channels in a pair must have the same rotation direction. −21418 More than two channels have the same pair number in channel properties. −21417 The input signal must have at least two channels. −21416 The input XY signal cannot be at equal time or speed interval. −21415 Select at least one channel in the DAQ Config input when you use a digital tachometer channel. −21414 Select at least two channels in the DAQ Config input when you use an analog tachometer channel. −21413 The center frequency is invalid. The center frequency cannot be greater than the Nyquist frequency (half of the sampling frequency). −21412 Multi-channel measurements require that each waveform has the same sample rate. −21411 The FIR filter settings are incorrect. −21410 Multi-channel measurements require that each even-angle signal has the same sample rate. −21409 number of averages for spectrum averaging must be greater than zero. −21408 The spectrum block size must be greater than zero. −21407 The number of tachometer pulses is insufficient for further computation. −21406 The sampling rate must be greater than zero. −21405 The filter length must be greater than zero. −21404 The interpolation or decimation factor must be greater than zero. −21403 The window information parameters are invalid for further computation. −21402 The refnum does n