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10 commits

Author SHA1 Message Date
Tim-Philipp Müller
5b02e4ac59 codecparsers: jpeg: fix docs for table parsing functions 2015-06-21 14:59:13 +01:00
Tim-Philipp Müller
d8963a015f docs: add new JPEG codecparser API to the docs 
And sprinkle some more Since markers
 2015-06-21 13:55:29 +01:00
Tim-Philipp Müller
7d8f694501 codecparsers: jpeg: fix validity checking of data parsed 
g_return_val_if_fail() and g_assert() are not appropriate
for checking untrusted external data.

https://bugzilla.gnome.org/show_bug.cgi?id=673925
 2015-06-21 11:32:10 +01:00
Tim-Philipp Müller
0f04a61bbe codecparsers: jpeg: fix up API 
- add data pointer to GstJpegSegment and pass segment
  to all parsing functions, rename accordingly
- shorten GstJpegMarkerCode enum type name to GstJpegMarker
- move function gtk-doc blurbs into .c file
- add since markers
- flesh out docs for SOF markers

https://bugzilla.gnome.org/show_bug.cgi?id=673925
 2015-06-21 11:31:50 +01:00
Tim-Philipp Müller
4a85958909 codecparsers: jpeg: tweak API a little 
https://bugzilla.gnome.org/show_bug.cgi?id=673925
 2015-06-21 11:30:30 +01:00
Tim-Philipp Müller
441478d161 codecparsers: jpeg: hide gst_jpeg_scan_for_marker_code() 
Make this function private for now, since it's unclear whether
it's actually needed seeing that gst_jpeg_parse() scans too.

https://bugzilla.gnome.org/show_bug.cgi?id=673925
 2015-06-21 11:30:30 +01:00
Gwenole Beauchesne
d279e12c8f codecparsers: jpeg: fix and optimize scan for next marker code. 
Fix scan for next marker code when there is an odd number of filler
(0xff) bytes before the actual marker code. Also optimize the loop
to execute with fewer instructions (~10%).

This fixes parsing for Spectralfan.mov.
 2015-06-21 11:28:38 +01:00
Gwenole Beauchesne
41ed5c0266 codecparsers: jpeg: fix calculation of segment size. 
The size of a marker segment is defined to be exclusive of any initial
marker code. So, fix the size for SOI, EOI and APPn segments but also
the size of any possible segment that is usually "reserved" or not
explicitly defined.

https://bugzilla.gnome.org/show_bug.cgi?id=707447
 2015-06-21 11:28:38 +01:00
Wind Yuan
c83e413656 codecparsers: jpeg: fix default Huffman tables generation. 
Fix build_huffman_table() to correctly fill in the associated HUFFVAL
entries to the default Huffman tables.
 2015-06-21 11:28:38 +01:00
Gwenole Beauchesne
7e7b4d68f4 codecparsers: jpeg: add JPEG bitstream parser 
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>

https://bugzilla.gnome.org/show_bug.cgi?id=673925
 2015-06-21 11:28:30 +01:00