Commit graph

32 commits

Author SHA1 Message Date
Jan Schmidt
44d16fc00d gstmpegvideoparser: Documentation fixes
Fix some spelling mistakes and improve documentation in
the MPEG video parser
2019-07-05 00:17:58 +10:00
Tim-Philipp Müller
a05006944a codecparsers: GST_EXPORT -> GST_CODEC_PARSERS_API
We need different export decorators for the different libs.
For now no actual change though, just rename before the release,
and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:34:24 +00:00
Tim-Philipp Müller
0ba57d0b8c codecparsers: mpegvideoparser: remove API that was deprecated 5 years ago
Libraries in -bad are not covered by our API/ABI stability
guarantees, and to the best of our knowledge everyone using
this API has moved to the replacement APIs ages ago.
2017-11-26 16:23:16 +00:00
Tim-Philipp Müller
d9354b83bb codecparsers: mark symbols explicitly for export with GST_EXPORT 2017-07-18 12:46:57 +01:00
Reynaldo H. Verdejo Pinochet
ea272f0bac codecparsers: drop all otherwizes 2016-06-17 15:58:09 -07:00
Sreerenj Balachandran
8f853cfed5 codecparsers: mpegvideo: Parse more slice header fields
https://bugzilla.gnome.org/show_bug.cgi?id=733872
2016-04-15 01:22:52 +10:00
Sreerenj Balachandran
51c7526030 codecparsers: mpegvideo: Add vbv_delay field to PictureHeader
https://bugzilla.gnome.org/show_bug.cgi?id=733872
2016-04-15 01:22:52 +10:00
Sreerenj Balachandran
7b0b74041e codecparsers: mpegvideo: Add more fields to the GstMpegVideoSequenceHdr
Added the fields load_non_intra_quantiser_matrix and
load_chroma_intra_quantiser_matrix to the sequence header structure.

https://bugzilla.gnome.org/show_bug.cgi?id=733872
2016-04-15 01:22:52 +10:00
Edward Hervey
5ebf1d477d mpegvideoparser: Handle non-hierarchical profiles again
This is a regression from since mpegvideoparser was switched to
use the codecparsing library.

The problem is that the high bit of the profile_and_level is used
to specify non-hierarchical profiles and levels. Unfortunately we
were discarding that information.

Expose that escape bit, and use it in the element

https://bugzilla.gnome.org/show_bug.cgi?id=763220
2016-03-09 15:18:42 +01:00
Gwenole Beauchesne
e84b0d626c codecparsers: cosmetics: drop TAB characters.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2014-03-25 15:48:40 +01:00
Luis de Bethencourt
692a053ef8 mpegvideoparse: Fix documentation of GstMpegVideoSequenceScalableMode 2013-12-18 16:26:17 -05:00
Tim-Philipp Müller
4200946cf1 codecparsers: mpegvideoparser: minor doc fixes 2013-08-13 17:53:29 +01:00
Sreerenj Balachandran
9a2ed78532 codecparsers: mpeg2: add slice header parsing API.
Add API to parse the Slice header. This also calculates the macroblock
position as specified in 6.3.16.

https://bugzilla.gnome.org/show_bug.cgi?id=664274

Signed-off-by: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2013-07-05 17:39:28 +02:00
Sreerenj Balachandran
2adfbe36f1 codecparsers: mpeg2: add sequence scalable extension parsing API.
Add API to parse the Sequence Scalable Extension header.

https://bugzilla.gnome.org/show_bug.cgi?id=664274

Signed-off-by: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2013-07-05 17:39:28 +02:00
Gwenole Beauchesne
1a5265ef72 codecparsers: mpeg2: add new API that takes GstMpegVideoPacket arguments.
Add new interface to MPEG-2 video parser that takes GstMpegVideoPacket
arguments instead of data, size, and offset. New functions are called
after gst_mpeg_video_packet_*() and provide the default implementation.

Older API is moved to the deprecated namespace and uses the new functions.

https://bugzilla.gnome.org/show_bug.cgi?id=692933

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2013-07-05 17:37:34 +02:00
Edward Hervey
b00192d7c0 codecparsers: Fix gtk-doc
Detected by initial pre-run of gi-scanner.
2013-06-23 11:46:01 +02:00
Gwenole Beauchesne
250555a7de codecparsers: mpeg2: add helpers to convert quantization matrices.
Add utility functions to convert quantization matrices from zigzag scan
order (as encoded in the bitstream) into raster scan order. Also provide
another function to reverse the operation.

https://bugzilla.gnome.org/show_bug.cgi?id=693000

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2013-02-06 14:22:41 +01:00
Cong Zhong
46c01de05d codecparsers: mpeg2: store quantization matrices in zigzag scan order.
Quantizer matrices are encoded in zigzag scan order in the bitstream,
but they are stored in raster scan order when they are parsed. However,
default matrices were also prepared in zigzag scan order, hence the
mismatch. i.e. the matrices were presented either in raster scan order
if they are explicitly present in the bitstream, or they were presented
in zigzag scan order if the default definitions were to be used instead.

One way to solve this problem is to always expose the quantization
matrices in zigzag scan order, since this is the role of the parser to
not build up stories from the source bitstream and just present what
is in there.

Utility functions will be provided to convert quantization matrices in
either scan order.

https://bugzilla.gnome.org/show_bug.cgi?id=693000

Signed-off-by: Cong Zhong <congx.zhong@intel.com>
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2013-02-06 14:22:41 +01:00
Tim-Philipp Müller
9e1b75fda3 Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-04 00:09:59 +00:00
Jan Schmidt
c5c44628fc mpegvideoparse: Handle Sequence Display Extension
Change the way the pixel-aspect-ratio is computed by
interpreting the sequence header aspect ratio info
as MPEG-1 values until a sequence extension or
sequence display extension is seen, and then updating
the sequence header struct accordingly.

Fixes incorrect anamorphic display on some MPEG-2 (DVD)
sequences.
2012-09-12 23:05:47 -07:00
Tim-Philipp Müller
7d41bc7825 codecparsers: minor header indentation clean-up for mpegvideoparser 2012-07-11 00:10:55 +01:00
Mark Nauwelaerts
28f3858b94 mpegvideoparse: tweak codec parser API and adjust parser element
... to allow for more efficient parsing and (more) consistent parsing API
among various codec parsers.

Fixes #672701.

Conflicts:

	gst/videoparsers/gstmpegvideoparse.c
2012-05-22 14:09:47 +02:00
Sreerenj Balachandran
f509960fea mpegvideoparse:Correct the skipping of vbv_delay in picture header and some typo fixes.
https://bugzilla.gnome.org/show_bug.cgi?id=663309
2011-11-14 08:32:32 -03:00
Vincent Penquerc'h
8766717b6c mpegvideoparser: input data is const, mark it so 2011-11-07 11:12:44 +00:00
Thibault Saunier
2c928aba19 codecparsers: Declare the new APIs as unstable for the time being 2011-09-26 08:11:45 -03:00
Edward Hervey
e6212219ed codecparsinglibs: Doc and indentation fixes 2011-09-19 14:03:23 +02:00
Thibault Saunier
309df7e1e8 codecparsers: mpegvideo: Add the ChromaType enum 2011-09-14 12:13:19 -03:00
Thibault Saunier
10215d26de codecparsers: mpegvideo: Change broken_gop to broken_link
This way we respect the standard naming
2011-09-14 12:13:19 -03:00
Edward Hervey
52a6db2206 docs: minor fixes 2011-09-02 16:10:17 +02:00
Gwenole Beauchesne
10ee3593f2 codecparsers: mpeg: add user-data packet start code definition. 2011-09-02 15:46:02 +02:00
Gwenole Beauchesne
888e8144a0 codecparsers: mpeg: fix Picture_Coding_Extension parser. 2011-09-02 15:46:02 +02:00
Thibault Saunier
c64b99339c codecparsers: mpeg: Add an mpeg video bitstream parsing library
Create a new codecparsers library
2011-09-02 15:46:02 +02:00