flvextract "This isn't a FLV file"

[hfinkel]

Just dropped the new Tiger advert flv into FLVExtract 1.6.0. Been using FLVExtract for donkeys years with no troubles. Now I get the dreaded "This isn't a FLV file". I first tried and encountered this error with the 1080HD version:

General
Complete name : D:\Temp\Tiger 1 1920x1080.flv
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 13.3 MiB
Duration : 32s 73ms
Overall bit rate : 3 470 Kbps
Encoded date : UTC 2010-04-06 19:20:19
Tagged date : UTC 2010-04-06 19:20:19
gsst : 0
gstd : 32576


Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 32s 73ms
Bit rate mode : Variable
Bit rate : 3 343 Kbps
Maximum bit rate : 8 996 Kbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.067
Stream size : 12.8 MiB (96%)
Encoded date : UTC 2010-04-06 19:20:20
Tagged date : UTC 2010-04-06 19:20:20

Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 32s 66ms
Bit rate mode : Variable
Bit rate : 125 Kbps
Nominal bit rate : 123 Kbps
Maximum bit rate : 203 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 44.1 KHz
Resolution : 16 bits
Stream size : 488 KiB (4%)
Encoded date : UTC 2010-04-06 19:20:19
Tagged date : UTC 2010-04-06 19:20:20

Next tried the 720HD, with same result:
General
Complete name : D:\Temp\Tiger 1 1280x720.flv
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 7.79 MiB
Duration : 32s 73ms
Overall bit rate : 2 038 Kbps
Encoded date : UTC 2010-04-06 19:13:57
Tagged date : UTC 2010-04-06 19:13:57
gsst : 0
gstd : 32576

Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 32s 73ms
Bit rate mode : Variable
Bit rate : 1 911 Kbps
Maximum bit rate : 5 914 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.086
Stream size : 7.31 MiB (94%)
Encoded date : UTC 2010-04-06 19:13:57
Tagged date : UTC 2010-04-06 19:13:57

Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 32s 66ms
Bit rate mode : Variable
Bit rate : 125 Kbps
Nominal bit rate : 123 Kbps
Maximum bit rate : 203 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 44.1 KHz
Resolution : 16 bits
Stream size : 488 KiB (6%)
Encoded date : UTC 2010-04-06 19:13:57
Tagged date : UTC 2010-04-06 19:13:57

BUT this version, the so-called 480 version, FLVExtract, it converts just fine:
General
Complete name : D:\Temp\Tiger 1 854x480.flv
Format : Flash Video
File size : 3.70 MiB
Duration : 32s 554ms
Overall bit rate : 953 Kbps

Video
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.0
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Muxing mode : Container profile=Unknown@3.0
Duration : 32s 554ms
Bit rate : 864 Kbps
Width : 854 pixels
Height : 480 pixels
Display aspect ratio : 16:9
Frame rate : 24.000 fps
Original frame rate : 23.976 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.088
Stream size : 3.35 MiB (91%)

Audio
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Duration : 32s 554ms
Bit rate : 95.6 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 44.1 KHz
Resolution : 16 bits

What gives? suggestions, advice.... even insults greatly appreciated.

Thanks.

[Baldrick]

It could be a mp4. What are you going to do?

[hfinkel]

It could be a mp4. What are you going to do?

final desired destination is xvid, highest possible stream rate, 720xN with the original audio copied over for highest possible transfer of audio information.

My preferred method is mencoder but I get the silent audio problem (it seems 100s have had and queried this same problem all over the net with mencoder but no clear response to solution anywhere).

mencoder syntax:
mencoder "Inputfilename.flv" -ovc xvid -xvidencopts bitrate=9792 -oac copy -o "Outputfilename.avi"

Thanks.

[Baldrick]

Tried ffmpeg? or avidemux? or xvid4psp? They can keep the audio and reconvert to xvid also.

[hfinkel]

avidemux worked great. Hadn't gotten around to trying it yet. Sweeet. Thanks.

[Gavino]

... I get the dreaded "This isn't a FLV file". I first tried and encountered this error with the 1080HD version:

General
Complete name : D:\Temp\Tiger 1 1920x1080.flv
Format : MPEG-4

As MediaInfo shows, it isn't a FLV file, it's mp4.

Next tried the 720HD, with same result:
General
Complete name : D:\Temp\Tiger 1 1280x720.flv
Format : MPEG-4

Same again.

BUT this version, the so-called 480 version, FLVExtract, it converts just fine:
General
Complete name : D:\Temp\Tiger 1 854x480.flv
Format : Flash Video

This one really is a flv container, so it works.

[DarrellS]

This one really is a flv container, so it works.

I spent about a week trying to get FLV thumbnails to show up in XP explorer. Tried everything suggested by googling but only got about four files in one folder to show thumbnails, all the others would not. Decided to use FLVextract to demux and put in an MKV container and the thumbnails showed just fine. It isn't a codec problem that keeps them from showing in XP, it's the stupid, worthless POS FLV container.

I decided it wasn't worth the trouble to get FLV thumbnails to show in Windows Explorer.