Batch processing in MPEG Streamclip

I have been given over 200 MPEG-1 clips with muxed audio to make a movie in iMovie. Dragging them right in will remove the audio, so I need to convert them to DV-PAL first
I tried MPEG Streamclip 1.8 and 1.9b2. The manual implies that I in "Batch List" should be able to add more than one file at the time. Not so. If I drag a bunch of files from the Finder into the Batch window, I'm asked what to do ("Export as DV"), where to save the converted files, enter conversion options and then I find that only the first file is added to the list.
So I tried the "Add Files..." button. "Files" is plural, but NOOOoooo. I was asked the same questions as above, but only the first file was added to the list.
Adding over 200 files and answer the same 3 dialogs for each and every one is tedious.
I have QT Pro, so I tried to create a "reference movie" containing a bunch of the mpg files. In QT player all clips play fine, but in MPEG Streamclip, only the first clip was converted. (sigh).
Now what? What is the magic trick to convert mpegs in batch mode?
Is there any other application that converts in batch?
Mac OS X 10.4.10, preferred language Swedish.
QT 7.1.6.

I have MPEG Streamclip 1.8, Mac OS X 10.3.9, QT 7.1.6, no Flip4Mac etc installed.
If I drag a bunch of files from the Finder into the Batch window, I'm asked what to do ("Export as DV"), where to save the converted files, enter conversion options and then I find that only the first file is added to the list.
With my setup all (five) MPEGs were added to the list and the conversion options were asked only once. And all files were processed.
So I tried the "Add Files..." button. "Files" is plural, but NOOOoooo. I was asked the same questions as above, but only the first file was added to the list.
With my setup all (five) MPEGs were added to the list and the conversion options were asked only once. And all files were processed.
Did you choose "Join all the files" in the conversion options? THEN only the very first input MPEG is processed (all the input DV files are processed, though). Seems like a bug with the MPEG input. But was that your problem?

Similar Messages

MPEG Streamclip transfer file order issue

After capturing a full days events on Video I find that I have 126 files that need to be processed by MPEG Streamclip using the batch list. To keep the file size manageable I am trying to break them down by hour. However the final product has compiled the separate files in the wrong order (in other words not chronological).
Any suggestions on what I might be doing wrong?

Operator Error.... sorry to bother you...

MPEG Streamclip rip - codec for FCE + QT viewing on Mac AND PC?

Based on the helpful advice of this forum, I am ripping a bunch of DVD's of home movies into a large number of discrete .mov files that I can (1) import into FCE for editing and (2) view directly and effortlessly using QT on both a Mac AND a PC (I want to send these files to others). Maintaining image quality is very important given the less than perfect MPEG 2 source material.
I am following the suggested process using MPEG STREAMCLIP, including trimming and light cutting of unwanted sections before creation of each file.
My question is what is the best export process and settings for my situation?. Given the less than ideal quality of the MPEG-2 source, I would like to avoid further degradation if possible. Choices:
1. EXPORT to .mov using AIC codec -- clearly the best choice for editing and QT playback on a MAC -- but unable to playback using QT on a PC without buying/loading the AIC software. This is a problem since I want the ability to give the .mov files to others and allow them play on a PC without instructions or the hassle of a software download.
2. EXPORT to .mov with another Codec -- but which CODEC? --which codec allows effortless playback with QT/ MAC and PC while retaining original MPEG-2 quality -- and allows for later editing in FCE?
3. SAVE AS .mov -- my understanding is that this copies the original MPEG-2 (after trimming and cuts) and eliminates transcoding. Is this accurate? If so, will it play effortlessly on a MAC and PC? Am I sacrificing anything when importing into FCE (other than the need to transcode from MPEG-2 into AIC)
Thanks in advance for the help.

Martin, I Exported my rip using MPEGstreamclip DV/DVCPRO-NTSC full quality, then exported QT Movie out of FC after editing a bit. Put it back to DVD using DVDSP and used Compressor due to tutorials I watched from Larry Jordon, saying I would get a better quality compression using compressor. I know you are probably scratching your head at this point saying, wait, FCE doesn't come with Compressor or DVDSP. At this time I'll have to admit, I have FCstudio but started out with Express and like the FCE forum better then the FC forum.
The setting in compressor I used are:
Name: MPEG-2 6.2Mbps 2-pass
Description: Fits up to 90 minutes of video with Dolby Digital audio at 192 Kbps or 60 minutes with AIFF audio on a DVD-5
File Extension: m2v
Estimated file size: 2.72 GB/hour of source
Type: MPEG-2 video elementary stream
Usage:SD DVD
Video Encoder
Format: M2V
Width and Height: Automatic
Pixel aspect ratio: Default
Crop: None
Padding: None
Frame rate: (100% of source)
Frame Controls: Automatically selected: Off
Start timecode from source
Aspect ratio: Automatic
Selected 16:9
Field dominance: Automatic
Average data rate: 6.2 (Mbps)
2 Pass VBR enabled
Maximum data rate: 7.7 (Mbps)
High quality
Best motion estimation
Closed GOP Size: 1/2 second, Structure: IBBP
DVD Studio Pro meta-data enabled

MPEG Streamclip Issues - Audio

So, I just started using MPEG Streamclip to get my .MOD files onto Final Cut Express. I have a question that may lead to another question.
1. When I converted the clips, they came out with no audio. I tried "Convert to MPEG" and "Convert to MPEG with MP2 Audio" and they came out only video.
and
2. If I have to reconvert all of my (45) clips, is there a way that I can do them all at once instead of drag, click, wait, repeat?
Thanks in advance

You don't convert to MPEG, you convert to QuickTime.
There is a batch function in MPEG Streamclip. Look in the menus. I can't remember which one it's in.

MPEG Streamclip Batch Pixelation

Hi there
I have a strange issue. When I use MPEG Streamclip to convert a video to MP4 one at a time it runs absolutely fine and the video looks perfect. However when I start a batch conversion I get all sorts of pixelation throughout the resulting MP4s. I am setting them to convert with exactly the same perimeters as if I were converting one at a time but for some reason they are a much worse quality. Particularly on transitions within the video. I was just wondering if anyone had any idea why this may happen when doing big batches and not when done singly? I'm stumped!!
Thanks in advance.

I have MPEG Streamclip 1.8, Mac OS X 10.3.9, QT 7.1.6, no Flip4Mac etc installed.
If I drag a bunch of files from the Finder into the Batch window, I'm asked what to do ("Export as DV"), where to save the converted files, enter conversion options and then I find that only the first file is added to the list.
With my setup all (five) MPEGs were added to the list and the conversion options were asked only once. And all files were processed.
So I tried the "Add Files..." button. "Files" is plural, but NOOOoooo. I was asked the same questions as above, but only the first file was added to the list.
With my setup all (five) MPEGs were added to the list and the conversion options were asked only once. And all files were processed.
Did you choose "Join all the files" in the conversion options? THEN only the very first input MPEG is processed (all the input DV files are processed, though). Seems like a bug with the MPEG input. But was that your problem?

Process for exporting in FCPX and then using MPEG Streamclip to downgrade?

I have footage shot with a 5Diii, and it is set at 1920x1080, 23.98p.
When I export through FCPX at H.264, it gives me a beautiful master file, but is larger than the 4GB that I need.
What is the process for using MPEG Streamclip to get a smaller file?
Do I export a master file in FCPX first using a different codec, and then use MPEG Streamclip to compress it? If so, what would be the best setting to export from FCPX, and then what would be the best setting to compress at in MPEG streamclip?
My goal is to be as close to 1080HD as possible.

Here is the background story....... I provide movie files on a DVD delivery (files in SD quality) and then also give a copy of the same films on a flash drive so clients can have it in HD quality, and plug the flash drive directly into the TV.
This always worked fine in the past until I ran into a movie file that is 4.7GB, and would not copy onto the flash drive, since flash drives only accept files up to 4GB.
So I tried reformating the flashdrive to exFAT. It allowed me to copy the 4.7GB on the flashdrive, but when I tried plugging it in directly to the TV, the TV did not recognize the drive. (I learned that exFAT is not always compatable with all TVs.)
My other option would be to download an app to let me reformat the drive into NTFS which accepts files bigger than 4GB, and supposedly works better with TVs. I haven't tried this yet because I am worried that downloading that app might mess up my computer. ???????
So....I have come to the conclusion that the only other thing I can do is compress the 4.7GB file to be 4GB (or less) so it will fit on the flash drive which I believe had an original format was MS-DOS FAT.
Are you suggesting instead of exporting the file from FCPX in H264, I should do it in ProRes? The file will be much larger than 4GB, but, then I can compress it, without losing as much of the quality as I would if I compressed an H264 file? Either way it needs to be 4GB or less, so I don't know if that defeats the purpose of using a ProRes file to begin with.
Thank you so much for helping with this!

MPEG streamclip batch exporting HELP?

can you do batch exporting and not make it one large file?
basically can you keep the files seperated?

The only thing extra you need when using MPEG Streamclip is the QuickTime MPEG-2 Playback Component from Apple. That allows MPEG Streamclip to work with MPEG-2 files, like those found in DVD-Video (VOB).
I don't understand how you have MPEG-4 entered into this at all.
From: http://www.squared5.com/svideo/mpeg-streamclip-mac.html
"For MPEG-2 playback and conversion, you need the QuickTime MPEG-2 Playback Component. You can buy it from Apple (www.apple.com/quicktime/mpeg2). If you have either Final Cut Pro or DVD Studio Pro, then the component is already installed and you don't have to buy it; but you may need to download the latest version from Apple. If you bought an older version of the component, you can update it to the latest version (www.apple.com/quicktime/mpeg2/update). Note that the MPEG-2 component is neither required nor useful for MPEG-1 or MPEG-4 files. But it is required for VOB files and transport streams, because they are MPEG-2 files."
-DH

Mpeg streamclip jvc fcp

HI all.
I have a JVC everior. I have read all through the notes all over the internet, my problem though is this. I have transfered the files from the camcorder as they were recorded. When I watch them in mpeg streamclip before I even transcode them, they look like they are de interlaced sometimes, lines go through them. Now when I export, the quality is terrible. I have tried no compression to MP4, and a few other formats including quicktime/prores 422.. Nothing makes the quality how it shows up on the camera.
Does anyone have any kind of experience with the everio and how to get this to work? I hate the camera and am getting a new one, but I have footage my sister wants of her son..
so any help would be great
bret

the output should match the source file, generally speaking. So if you camera is making HD files then using a HD sized coded would suffice.
HDV (IIRC) is 1440x1080. I often find that using the default settings for a particular file type in Streamclip often work quite well.
As a test, take a small file. if it works, great batch process away, if not, tweak it and then try the same small file until you get a desirable result. Rinse and repeat.

Can I batch process 92 files?

am trying to convert 92 mov files to ProRes which were shot on canon 7d. Have set up a droplet, and dropped all the files onto it, but it just hangs for ages without the box popping up to allow me to select the multiple processor box.
AIs this too much for it? I have a pretty fast machine Mac Pro 2.26 Quad Core with 12Gb ram.

thanks NLE. I needed it done through the night, so couldn't really do small batches at a time. I ended up downloading MPEG Streamclip which is free, and am only dropping in the footage just now, but it worked brilliantly - processed them all in one go and did it in about 2 hours. I had 51GB of H.264 files to convert to ProRes. Very disappointed that compressor (on my system) couldn't deal with this easier.
I'll be very intrigued to see how the new canon plugin deals with processing these files (when I figure it out!), and the time it takes to process. It appears to me that MPEG Streamclip might be the easiest way to process these clips in future.

Mpeg streamclip vs. compressor 3.5 ( mpeg streamclip 100 times faster)

(I also posted this in another thread, but i hopes that it gets read, i'm posting it again...)
I'm working on a mbp 2.66ghz with 4g ram, compressor 3.5. Last night I set up a batch of 6 1440x1080 prores 50i clips (each between 5 and 10 min long) to be encoded for web streaming. The exact specs for the encode are here:
Description: H.264 video at 8 Mbps with AAC 44.1kHz audio
File Extension: mov
Estimated size: unknown
Audio Encoder
AAC, Stereo (L R), 44.100 kHz
Video Encoder
Format: QT
Width: 400
Height: 225
Pixel aspect ratio: Square
Crop: None
Padding: Preserve source aspect ratio
(L: 0, T: 0, R: 0, B: 0)
Frame rate: (100% of source)
Frame Controls On:
Retiming: (Fast) Nearest Frame
Resize Filter: Linear Filter
Deinterlace Filter: Best (Motion Compensated)
Adaptive Details: On
Antialias: 0
Detail Level: 0
Field Output: Same as Source
Codec Type: H.264
Multi-pass: On, frame reorder: On
Pixel depth: 24
Spatial quality: 75
Min. Spatial quality: 50
Temporal quality: 50
Min. temporal quality: 50
I woke up this morning hoping to be able to watch the clips, and compressor was still chugging away on the first clip - and telling me that it was still going to take 36 hrs to finish.
exasperated, i quit the process.
I decided to try encoding with mpeg streamclip 1.9.3b2. I chose the same settings:
h.264 , multi-pass, 4Mbps @ 90% quality (ok, not 8Mbps like compressor, but 8 was still fast in mpeg streamclip), de-interlace, same frame size, yada yada.
mpeg streamclip did in 5 min. what compressor could not do overnight, and the quality is not bad.
what gives??

will my files still be de-interlaced if I turn frame controls off?

MPEG Streamclip Altered Original files.

I recently did a video shoot with a Canon 7D. I loaded 2 16gb cards onto a Lacie Rugged drive into seperate folders. After the shoot all the original files worked fine for playback with Quicktime and editing.
I then used MPEG Streamclip to convert the first cards footage to Apple ProRes. The harddrive ran out of memory halfway through the conversion and MPEG Streamclip canceled the batch conversion.
I went back to the original files and only about 5 random few out of 90 shots would still work with quicktime and editing while the rest no longer open. I read somewhere that if you don't rename the newly converted files then something happens so I deleted the new ProRes files. Nothing changed. I'm guessing that MPEG Streamclip altered the original files somehow?
When trying to open in Quicktime Player 7 I get "The movie could not be opened. The end of the file was reached."
I then tried to open the now working files in VLC and they work fine.
All the footage from the second card all works fine still.
I used VideoSpec to look at what was going on and compare between a working clip and a not working one. There were no difference in format or anything other than duration.
Container: MOV - Quicktime
Format: H.264/MPEG-4 AVC
Encoding Profile: [email protected]
Please help me get these files working again! I can not recreate this footage!!!! I know the information is still all there because the files can be played with VLC, I just can't edit with them anymore...

LeoAhrens wrote:
I'm guessing that MPEG Streamclip altered the original files somehow?
Not likely, more probable that the drive directory or file structure was damaged while trying to write to a full disk.
Do you have the original camera cards, or back up copies?
If you do, return to them and start the process over again with more disk space.
If not, you should backup what QT files you have now on the corrupted disk in case something else occurs.
After that:
If it were me, I would run Disk Warrior to repair the disk directory -
http://www.alsoft.com/diskwarrior/
QuickTime movies are very, very hard to recover if corrupted, but you can try QuickTime Repair from Digital Rebellion, part of the Pro Maintenance Tool Package -
http://www.digitalrebellion.com/promaintenance/
I believe they have a free trial offer.
MtD

JVC GZ-HD7U MPEG Streamclip export settings for use with FCP

There are a number of compression options in the free MPEG Streamclip 1.9.2 and it's unclear what's best or how I would figure that info out. My guess is Apple HDV 1080i50, Apple HDV 1080i60, Apple DVCPRO HD 1080i50, or Apple DVCPRO HD 1080i60. The default setting was Apple Motion JPEG A, but this produced a huge file and doesn't seem right anyway. I think the desired frame size is 1920 x 1080, but I'm uncertain if I need to end up with an interlaced or progressive .mov file. My selectable options for progressive/interlaced are: "Interlaced Scaling," "Reinterlace Chroma," and "Deinterlace Video." Selecting "Deinterlace Video" excludes use of the other two options.
These clips will eventually be edited in FCP and I'm guessing that the appropriate settings will match whatever is selected at the export stage.
I'm using the JVC Everio GZ-DH7U HD Hard disk camcorder...I'm not sure if JVC uses the same setting across the board for it's HD cameras or maybe just the Everio cameras are similarly designed??
Thanks to all!!

the output should match the source file, generally speaking. So if you camera is making HD files then using a HD sized coded would suffice.
HDV (IIRC) is 1440x1080. I often find that using the default settings for a particular file type in Streamclip often work quite well.
As a test, take a small file. if it works, great batch process away, if not, tweak it and then try the same small file until you get a desirable result. Rinse and repeat.

Mpeg Streamclip DVD settings for FCP...trying to preserve quality

I'm very new at editing, so please bear with me!
I am creating a director's reel for myself using footage on DVD. I'm ripping the DVDs with MPEG Streamclip to DV NTSC then importing to FCP and finally exporting to DVD.
My problem is--there is an egregious quality loss through this process. Basically is there a better codec than DV NTSC to use in MPEG Streamclip?
I'm having to render my clips in Final Cut which leads me to believe I'm adding an unnecessary step of compression/de-compression. Also, the DV NTSC quicktime doesn't look so bad until I put it in Final Cut...then it looks awful. Am I messing up an import setting?
Finally-- When I load my clip in final cut it loads it anamorphic and I'm having to right click my clip after I load it to the bin, search it's video settings, and de-click "anamorphic" in order to get the right aspect ratio (16:9)...am I doing something wrong there?? Is that messing with the quality?
I realize that this is a basic question, but I literally have spent 3 hours searching for an answer and haven't found one, so please forgive me if it's repetitive! And obviously I'm stuck using the DVDs...I have no option to get the uncompressed original footage. Thanks!!

razini wrote:
I'm very new at editing, so please bear with me!
No problem, we all were at one time. Welcome to the family.
razini wrote:
I'm ripping the DVDs with MPEG Streamclip to DV NTSC then importing to FCP and finally exporting to DVD.
My problem is--there is an egregious quality loss through this process. Basically is there a better codec than DV NTSC to use in MPEG Streamclip?
Shouldn't be. But transcoding form MPEG2 to DV can get messy. I use DVDxDV for unwrapping MPEG2 form DVDs.
razini wrote:
I'm having to render my clips in Final Cut which leads me to believe I'm adding an unnecessary step of compression/de-compression. Also, the DV NTSC quicktime doesn't look so bad until I put it in Final Cut...then it looks awful. Am I messing up an import setting?
You should not be rendering in FCP, this suggests your sequence is not set to be plain ol' DV.
razini wrote:
Finally-- When I load my clip in final cut it loads it anamorphic and I'm having to right click my clip after I load it to the bin, search it's video settings, and de-click "anamorphic" in order to get the right aspect ratio (16:9)...am I doing something wrong there?? Is that messing with the quality?
If your clips are not anamorphic, your sequence is set incorrectly. Start with a new sequence and make sure it is set to DV.
razini wrote:
I realize that this is a basic question, but I literally have spent 3 hours searching for an answer and haven't found one...
Yeah, video is like that.
bogiesan

HELP! Missing?? for Mpeg Streamclip

First, forgive me if this question is too simplistic but my knowledge is basic, at best.
I just had a new hard drive installed on my vintage iMac (10.9.2. was installed on it) and am busy trying to replace the apps I knew and used and loved.
I have downloaded mpeg streamclip 1.9.3b8 but am obviously missing something else as it will not work for me (video screen remains white/blank). What else do I need to buy/install/download to get it to work?
Many thanks!
HJ

Did you install The MPEG-2 Component?
See: http://www.squared5.com/svideo/mpeg-streamclip-mac.html
The installer of the MPEG-2 Playback Component may refuse to install the component in Lion and Mountain Lion. Apple states the component is unnecessary in Lion and Mountain Lion, however MPEG Streamclip still needs it.
To install the component in Lion or Mountain Lion, please download MPEG Streamclip 1.9.3b8 beta above; inside the disk image you will find the Utility MPEG2 Component M. Lion: use it to install the MPEG-2 Playback Component in Lion or Mountain Lion. The original installer's disk image (QuickTimeMPEG2.dmg) is required.
The current versions of MPEG Streamclip cannot take advantage of the built-in MPEG-2 functionality of Lion and Mountain Lion. For MPEG-2 files you still need to install the QuickTime MPEG-2 Playback Component, which is not preinstalled in Lion and Mountain Lion. You don't have to install QuickTime 7.
Also read the information for Snow Leopard below.
Snow Leopard and MPEG-2 Playback Component
The Snow Leopard upgrade DVD released on August 28, 2009 may wipe the content of the /System/Library/QuickTime folder during the upgrade process, and delete your MPEG-2 Playback Component installed in that folder. To use MPEG-2 files with MPEG Streamclip you have to reinstall the MPEG-2 component or restore it from a backup copy.
If you are going to upgrade to Snow Leopard
Open the /System/Library/QuickTime folder and drag the QuickTimeMPEG2.component file to your desktop to make a copy of it. Then upgrade to Snow Leopard. When the upgrade is complete, open the /System/Library/QuickTime folder again and move the QuickTimeMPEG2.component file from the desktop to the /System/Library/QuickTime folder (enter your administrator password if necessary).
If you already upgraded to Snow Leopard
You have to reinstall or restore your MPEG-2 Playback Component.
If you have a Time Machine backup of your System folder, then open the /System/Library/QuickTime folder, enter Time Machine and go back in time until you see the QuickTimeMPEG2.component file; select that file and then click Restore.
If you purchased the MPEG-2 Playback Component from the Apple Online Store, then you probably still have the DMG file that contains the installer. Use Spotlight to search for "QuickTimeMPEG2.dmg": if you find a file with that name, double-click it and then in the disk image, double-click the installer package for Intel Macs.
If you purchased the MPEG-2 Playback Component from the Apple Online Store but you can't find the QuickTimeMPEG2.dmg file, you can download the file again from the Apple Online Store if you remember the Apple ID used when you originally purchased it (if you forgot your Apple ID then go to Apple iforgot). Visit the Apple Online Store, click on "Account" in the store menu, then click "Downloadable Software Purchases," enter your Apple ID and password, and click the link to the QuickTime MPEG-2 Playback Component to download it again.
If you obtained the MPEG-2 Playback Component from the installation of Final Cut Studio, then you can reinstall it again from the Final Cut Studio DVD. Insert the DVD and use the Finder's Go menu > Go To Folder... command to get to the /Volumes/Final Cut Studio/Installer/Packages/ folder inside the DVD. Locate the QuickTimeMPEG2.pkg or the QuickTimeMPEG2Pro.pkg installer: double-click it to reinstall the MPEG-2 component.

MPEG STREAMCLIP: I need Exact export settings please...

Does anyone have the correct settings for exporting Via MPEG STREAMCLIP. I know that there is a H.264 and MPEG-4 option in the codecs. I DO NOT want to use the 640x480 iPod settings since there is resolution loss from the DVD's.
So what setting and bit rates would I have to use to crate a video file that is playable in AppleTV without having to go through QT Pro. I know I can encode a 720P file (and I will do that so I don't lose resolution), but is there anything in between the two taht Apple TV will play at 24P. Threre is a 950x540 but is says at 30 FPS.

How do you determine the proper crop values? I'm used to using MediaFork, which crops for you.There are basically two strategies:
1) Ensure that the file is displayed at it's proper aspect ration and then crop out what you don't want. That which remains you keep and convert to your target format.
2) Decide what the target aspect ratio is supposed to be and then crop/scale the file so it will meet those requiements.
In addition, there are differing strategies in determining encode/decode efficiency as a trade off for the accuracy of your aspect ratio. MPEG Streamclip, for instance, sacrifices encode/decode efficiency for exactitude in aspect ratio while MediaFork/HandBrake is just the opposite. Ex. Streamclip will allow you to create a 720 x 405 (16:9 or 1.78:1 aspect) while MediaFork or HandBrake would default to 720 x 400 (1.80:1 aspect ration). Since 720 and 400 are both evenly divisible by 16 but 405 is not, the MeadiaFork/Handbrake application would likely conver slightly faster than streamclip with all oter factors being the same. But, the Streamclip file would have the more accurate aspect ratio for scaling by TV or your HDTV.
As to actually entering the settings, you must first decide which strategy combination you plan to use. If the movies containg scenes which are display smaller than other scenes, scrub the play head to that location and set "in' and "out" points for tests. At this point you mst decide which strategy combination you plan to use before proceeding any further.
a) In the first case, simply tick the Streamclip "Crop" option and enter estimated valus. Now press the preview button and preview the output. If not satisfied, abort the preview and modify your entries. Repeat these steps until you are satisfiled. Do this for each movie as it is common for each to be centered differently or be of a slightly differeing size.
b) In the second case, you must now determine your target dimensions. For instance, lets say you have a movie which is specified to have a 2.35:1 aspect ratio and plan to export it at a width of 854 pixels. In this case, Streamclip has probably defaulted to an 854 x 480 (16:9) screen setting in your work area. However, your movie displays with a black "letterbox" top and bottom. To calculate a proper height for you movie at this width, simply devide 854 by 2.35 and you should get an answer between 363 and 364. If you plan to go for a "most accurate" aspect rato, then simply select the "Custom" display option and enter a width of 854 and a height of either 363 or 364. Now tick both the "Crop" and "Scale" Streamclip option and process as described above. Simply enter your crop values and previed the result. In this case however, ther cropped picture will always be rescaled back to the "Custom" display size you specified for your output.
While values will be different depending on which workflow you elect to use in paragraphs "a" or "b", the final displays should by approximately the same. In the first instance, the final output will be determined by the total amount of "overscan" included in the original content over and above the aspect ratio while in the second instance, the overscan will be scaled to fit within the aspect ratio you specified. This may sound confusing at first, but the principals and procedures are quite simple in practice once you get used to applying them.

Batch processing in MPEG Streamclip

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