[gstreamer-bugs] [Bug 442034] [avi] add support for subtitle streams (GAB2)

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: HEAD CVS




------- Comment #3 from npl at chello.at  2007-06-01 21:04 UTC -------
Thanks for the fast response and fix (I dint ask for more ;) ).
Regarding parser, the GAB2 "datachunk" (there is only one, preferably
interleaved before the data is needed - but the tool I use inserts them as last
movi-chunk for no arguable reason) is nothing but the contents of whole .srt or
.ssa File.
AFAIK .srt is already supported by GStreamer, so this shouldnt be much work?

Heres a simple description of the header, nothing really suprising. As said,
theres also a single movi-chunk containing a whole subtitle in .srt/.ssa
format. (Dont see why supporting multiple chunks should be a problem though)

---------------------------------------------------------

*Stream header chunk
typedef struct {
FOURCC fccType; // "txts"
FOURCC fccHandler; // 00 00 00 00
DWORD dwFlags;
WORD wPriority;
WORD wLanguage;
DWORD dwInitialFrames;
DWORD dwScale;
DWORD dwRate; // dwRate / dwScale == duration in seconds
DWORD dwStart;
DWORD dwLength; // In units above..., should be 1
DWORD dwSuggestedBufferSize;
DWORD dwQuality;
DWORD dwSampleSize; // = 0 -> treated as VBR
RECT rcFrame; // 0, 0, 0, 0
} AVIStreamHeader;

*Stream format chunk
This chunk has a size of 0.

---------------------------------------------------------


Sorry if I said "simple stuff" a couple times, I`d do it myself but GStreamer
is as alien to me as GObject. I guess its not much work if you are familar with
those things ;)


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