Vytažení titulků ze souboru mov
http://ubuntuforums.org/showthread.php?t=1989794
sudo apt-get install gpac
then as you can see there is a way to convert existing sub to srt [this might work]
MP4Box -h dump
Dumping Options
-std dumps to stdout instead of file
-info [trackID] prints movie info / track info if trackID specified
* Note: for non IsoMedia files, gets import options
-bt scene to bt format – removes unknown MPEG4 nodes
-xmt scene to XMT-A format – removes unknown MPEG4 nodes
-wrl scene VRML format – removes unknown VRML nodes
-x3d scene to X3D/XML format – removes unknown X3D nodes
-x3dv scene to X3D/VRML format – removes unknown X3D nodes
-lsr scene to LASeR format
-diso scene IsoMedia file boxes in XML output
-drtp rtp hint samples structure to XML output
-dts prints sample timing to text output
-sdp dumps SDP description of hinted file
-dcr ISMACryp samples structure to XML output
-dump-cover Extracts cover art
-dump-chap Extracts chapter file
-ttxt Converts input subtitle to GPAC TTXT format
-ttxt TrackID Dumps Text track to GPAC TTXT format
-srt Converts input subtitle to SRT format
-srt TrackID Dumps Text track to SRT format
-stat generates node/field statistics for scene
-stats generates node/field statistics per MPEG-4 Access Unit
-statx generates node/field statistics for scene after each AU
-hash generates SHA-1 Hash of the input file
if it does then we can rebuild video file using Mkvmerge but first see if this conversion works
for this use
MP4Box -info nameoryourfile.mp4
to find sub track name
then to convert sub file
MP4Box -srt TrackID nameoryourfile.mp4
see if a new srt file has been created ….. fingers crossed………….