avidemux: Also detect 0x000001 as H264 byte-stream start code in codec_data

This works around some AVI files storing byte-stream data in the codec_data. The previous workaround was only checking for 0x00000001 (4 bytes) instead of 0x000001 (3 bytes).

added 1.18 Needs backport labels

The original workaround was added in https://bugzilla.gnome.org/show_bug.cgi?id=681369 / e1881d1e

assigned to @gstreamer-merge-bot

mentioned in commit slomo/gst-plugins-good@fedd6c2a

added 27 commits

• f395a1fa...ab6cb4c2 - 26 commits from branch gstreamer:master
• fedd6c2a - avidemux: Also detect 0x000001 as H264 byte-stream start code in codec_data

Compare with previous version

assigned to @slomo and unassigned @gstreamer-merge-bot

I couldn't merge this branch: CI failed!

assigned to @gstreamer-merge-bot and unassigned @slomo

assigned to @slomo and unassigned @gstreamer-merge-bot

I couldn't merge this branch: CI failed!

assigned to @gstreamer-merge-bot and unassigned @slomo

merged

mentioned in commit tpm/gst-plugins-good@fe6bae08

added Backported into 1.18 label and removed Needs backport label

Merge Request for backport into 1.18 branch: !1073 (merged) (target milestone: 1.18.5)

mentioned in merge request !1073 (merged)

changed milestone to %1.19.2