Very, very generally: No, this is the reason why
a decoder is needed: Some applications produce
an incorrect framesize for a given resolution.
But in the case of a given application, the
framesize has to be constant for a given
resolution: If it is not, the file cannot be read.
(And the framesize is of course defined by the
specification for a given resolution but as said,
some encoders use an incorrect stride.)
You can definitely use this syntax to read the
raw files from your capture card, but is should
be way easier to use -f dshow instead.
Yes, I could do this if our card would be supported (Decklink), but we
dont use Decklink cards. :/ We use DVS Cards.
ffmpeg supported devices for dshow:
[dshow @ 00000000003c6820] DirectShow video devices (some may be both
video and audio devices)
[dshow @ 00000000003c6820] "Logitech HD Webcam C525"
[dshow @ 00000000003c6820] Alternative name
"@device_pnp_\\?\usb#vid_046d&pid_0826&mi_02#7&1469f92a&3&0002#{65e8773d-8f56-11d0-a3b
[dshow @ 00000000003c6820] "Decklink Video Capture"
[dshow @ 00000000003c6820] Alternative name
"@device_sw_{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{44A8B5C7-13B6-4211-BD40-35B629D9E6
[dshow @ 00000000003c6820] DirectShow audio devices
[dshow @ 00000000003c6820] "Microphone (HD Webcam C525)"
[dshow @ 00000000003c6820] Alternative name
"@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\Microphone (HD Webcam
C525)"
[dshow @ 00000000003c6820] "Decklink Audio Capture"
[dshow @ 00000000003c6820] Alternative name
"@device_sw_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\{AAA22F7E-5AA0-49D9-8C8D-B52B1AA92E
[dshow @ 00000000003c6820] "Headset Microphone (4- Logitech"
[dshow @ 00000000003c6820] Alternative name
"@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\Headset Microphone
(4- Logitech"
[dshow @ 00000000003c6820] "Realtek Digital Input (Realtek "
[dshow @ 00000000003c6820] Alternative name
"@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\Realtek Digital Input
(Realtek "
Best Regards
Christoph
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