Need confirmation of this SUPER settings to copy stream from FLV to AVI

[ohboy888]

I have a FLV video and I want to transfer the video & audio stream to AVI (wihtout re-encoding, that means I don't want to loss any quality from the original video). I use AVI for destination container because I want to edit it with virtualdub later.

This is the FLV video information extracted by MediaInfo:

Format                           : Flash Video
File size                        : 13.1 MiB
Duration                         : 6mn 17s
Overall bit rate                 : 290 Kbps
Tagging application              : FlixEngineLinux_8.0.10.1 (www.on2.com)

Video
Format                           : VP6
Duration                         : 6mn 17s
Bit rate                         : 212 Kbps
Width                            : 352 pixels
Height                           : 200 pixels
Display aspect ratio             : 16/9
Frame rate                       : 30.000 fps
Bits/(Pixel*Frame)               : 0.101
Stream size                      : 9.79 MiB (75%)

Audio
Format                           : MPEG Audio
Format version                   : Version 1
Format profile                   : Layer 3
Duration                         : 6mn 17s
Bit rate mode                    : Constant
Bit rate                         : 64.0 Kbps
Channel(s)                       : 2 channels
Sampling rate                    : 44.1 KHz
Resolution                       : 16 bits
Video delay                      : 5ms
Stream size                      : 2.88 MiB (22%)

So I will use SUPER 2009 to do the task. There are the options I would select:
1. I choose "AVI" in "Select Output Container".
2. I choose "FFmpeg" for the encoder.
3. I check "Stream Copy" in Video section.
4. I check "Stream Copy" in Audio section.

I've tried it with that settings and the FLV video was transfered to AVI successfully. But what I'm very concerned is the quality of the output video (AVI).

The question:
After what I've done above, is there any quality loss in the output video (AVI) compared to the source video?
Of course, as we know, I've checked the "Stream Copy" so the source video stream should be copied to output video container, but I'm still worried about this issue. Is there anybody could confirm this?

I have same question too for copying SWF stream to AVI.

[Baldrick]

Nope, it shouldn't reconvert. How long does it take when you run it? If several minutes then something is wrong.

You could also use FLV Extract, it will make an avi and mp3 that you can import in Virtualdub.

[ohboy888]

Nope, it shouldn't reconvert. How long does it take when you run it? If several minutes then something is wrong.

Thanks for the confirmation. The source video file size is 13 MB, it only took less than 1 minute to finish the task.

You could also use FLV Extract, it will make an avi and mp3 that you can import in Virtualdub.

Thanks for the suggestion. Alternative way is to use FLV Input Plugin which no need to import the audio. But the downside is FLV Extract cannot handle SWF. Do you know tool for extracting stream in SWF without decompressing/recompressing? Do you know a tool for copying stream from SWF to AVI besides SUPER?

Btw, I just found out there is a big difference in size of the output AVI from between SUPER and using FLV Input Plugin. The output AVI size from SUPER is 21.6 MB, while the AVI size from FLV Input Plugin is 13.2 MB. Do you know what's the cause of this?