vcs

Originally reported by both Dougn Redhammer and Marco Liguorini

Originally reported by Phil Grundig

Some override-able variables were renamed silently in 1.11

DEFAULT_COLS ⇒ cols
DEFAULT_INTERVAL ⇒ interval
DEFAULT_NUMCAPS ⇒ numcaps

Internal: Stale code from prior versions, numsecs inside process() uses mplayer’s value instead of the best value to determine video length (and keep or discard timestamps).

As a side-effect, newer code being more strict about array vs string handling can fail easily.

Version 1.12.3 breaks on FreeBSD due to the usage of GNU-specific extensions of expr, sed and an incompatible Bash RE.

E.g. on FreeBSD

Seen in HEVC contained in MPEG-TS

Submitted by Eris Belew

Unquotted grep pattern ^ID is problematic.

Patch submitted.

No need for description

Symbolic font names don’t work since IM won’t know about TTF fonts.

Probably affects other systems too.

As reported by Dirk Reiners (paraphrased)

When steps get too small they might round to 0 ⇒ infinite loop in compute_timecodes.

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Parsing of manual timestamps with milliseconds multiplies seconds by 10 when no s character is used

No need for description

No need for description

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Might fail with virtual file systems, like sshfs, which don’t implement certain features (like links)

E.g. with CTRL+C

Use mktemp instead.

Originally reported by “o kapi”

No need for description

Originally reported by Phil Grundig

Bash 2 syntax has been the norm for most versions (although broken in some).

So far none of the major distributions is using bash 2, bash 4 is already gold but not widely-used enough.

Only a few special purpose/minimal distros like DSL retain bash 2.05b, but vcs requires recent versions of ImageMagick, Mplayer and FFmpeg anyway. I can’t see a reason to retain such backwards compatibility.

Newer IM appears to use recognise system fonts by default. Using some common-place good looking font like DejaVu would be preferable.

It’s supposed to fail silently, at least accordingly to http://www.imagemagick.org/Usage/#fonts but on my system it prints an error. Probably not worth supressing

WebM: http://www.webmproject.org/

Uses VP8 video and Vorbis audio.

Current Status:

Identification

MPlayer: Video detected as VP80
FFmpeg:
* 0.5.1+svn20100311: Not supported (fails in the safe-length-detection stage)
* 0.6~svn20100603: Video detected as libvpx

Capture

Both appear to work fine.