Commit graph

58 commits

Author SHA1 Message Date
Thibault Saunier
099ac9faf2 docs: Convert gtkdoc comments to markdown
Modernizing the documentation, making it simpler to read an
modify and allowing us to possibly switch to hotdoc in the
future.
2017-03-10 18:19:17 -03:00
Sebastian Dröge
49ac382b47 video-converter: Implement multi-threaded scaling/conversion
This adds a property to select the maximum number of threads to use for
conversion and scaling. During processing, each plane is split into
an equal number of consecutive lines that are then processed by each
thread.

During tests, this gave up to 1.8x speedup with 2 threads and up to 3.2x
speedup with 4 threads when converting e.g. 1080p to 4k in v210.

https://bugzilla.gnome.org/show_bug.cgi?id=778974
2017-02-23 21:55:29 +02:00
Vineeth TM
44b70ca3a1 base: use new gst_element_class_add_static_pad_template()
https://bugzilla.gnome.org/show_bug.cgi?id=763075
2016-03-24 14:25:41 +02:00
Tim-Philipp Müller
a62c7bd54c Fix use of undeclared core debug category symbols
libgstreamer currently exports some debug category
symbols GST_CAT_*, but those are not declared in any
public headers.

Some plugins and libgstvideo just use GST_DEBUG_CATEGORY_EXTERN()
to declare and use those, but that's just not right at
all, and it won't work on Windows with MSVC. Instead look
up the categories via the API.
2016-02-20 11:31:43 +00:00
Tim-Philipp Müller
6020b0cf2b Update mailing list address from sourceforge to freedesktop 2015-07-16 17:17:16 +01:00
Tim-Philipp Müller
ec5c93f169 docs: update element example pipelines
- gst-launch -> gst-launch-1.0
- use autoaudiosink and audiovideosink more often
- review pipeline examples and descriptions
2015-05-10 11:38:19 +01:00
Vivia Nikolaidou
327efa9805 videoconvert: Expose some properties from the videoconverter API
Expose chroma resampler, alpha mode, alpha value, chroma mode, matrix mode,
gamma mode and primaries mode from the videoconverter API.

https://bugzilla.gnome.org/show_bug.cgi?id=749105
2015-05-08 15:17:06 +02:00
Matthieu Bouron
9dfe40d740 videoconvert: Keep colorimetry and chroma-site fields if passthrough
https://bugzilla.gnome.org/show_bug.cgi?id=748141
2015-04-27 11:20:36 +02:00
Wim Taymans
991a81bd5d videoconvert: add dither-bits option
Fix the dither option.
Add a new option to set the quantizer
2014-12-02 15:23:00 +01:00
Wim Taymans
71efeaaa6f video-convert: swap src and dest
It is more natural and consistent with other uses.
2014-10-29 16:26:10 +01:00
Wim Taymans
98c42dc5e4 video: convertor -> converter 2014-09-24 16:19:30 +02:00
Wim Taymans
b2fd20c416 video: move videoconvert code to video library
Move the conversion code used in videoconvert to the video library
and expose a simple but generic API to do arbitrary conversion. It can
currently do colorspace conversion but the plan is to add videoscale to
it as well.

See https://bugzilla.gnome.org/show_bug.cgi?id=732415
2014-09-24 15:59:39 +02:00
Wim Taymans
4c8e211e57 videoconvert: tweak the scoring algorithm
Make a little table of conversions and manually score them. Use this
info to define better weights for the scoring algorithm.
give separate scores for doing changes and the impact of the change,
This allows us to avoid conversion when we can but still allow fairly
lossless changes.
The old code did not penalize GRAY conversions, PAL conversions were
punished too low and depth conversions too high.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=722656
2014-01-24 12:19:43 +01:00
Sebastian Dröge
d0133a2d11 videoconvert: Allow passthrough for ANY caps features 2013-04-08 08:30:38 +02:00
Wim Taymans
33a54ba4f3 videoconvert: be smarter when selecting a conversion
Try to select the conversion that would result in the minimal amount of quality
loss. Quality loss is calculated rather arbitrarily but it avoids doing
something really stupid in most cases.
2013-03-28 18:15:24 +01:00
Wim Taymans
a092cbee5e videoconvert: avoid double free
Set variable to NULL after free so that we don't free twice.
2013-03-24 00:38:22 +01:00
Wim Taymans
b1950b6409 Revert "videoconvert: prevent bad interlaced conversions"
This reverts commit adc9694ed7.

No need to restrict the conversion, we can handle interlace correctly. We
basically unpack each field, then convert each field to the target colorspace
and pack and interleave each field to the target format. We also disable any
fast path that can't deal with interlaced formats.
2013-03-24 00:21:36 +01:00
David Schleef
adc9694ed7 videoconvert: prevent bad interlaced conversions
Don't allow conversion that changes vertical subsampling if video
is interlaced.
2013-03-22 17:24:43 -07:00
Tim-Philipp Müller
5f59b4f7ee Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-03 23:05:09 +00:00
Sebastian Dröge
a3878f8bb8 videoconvert: Set correct plugin metadata 2012-09-25 13:16:45 +02:00
Tim-Philipp Müller
9f1856a7a5 videoconvert: fix up dither method enum GType name for consistency 2012-09-09 15:12:14 +01:00
Sreerenj Balachandran
fe08923628 videoconvert: fix example pipeline in docs
There is no more 'fourcc' typecast for format.

https://bugzilla.gnome.org/show_bug.cgi?id=681436
2012-08-08 11:21:51 +01:00
Wim Taymans
53fc1f3fca update for query api changes 2012-07-06 11:50:44 +02:00
Wim Taymans
bc5ba349b7 update for allocation query changes 2012-07-06 11:05:09 +02:00
Wim Taymans
443b0a3c78 videoconvert: use video helper library more
Use VideoInfo to setup the conversion.
Use the color matrix from the video info.
2012-06-01 12:09:44 +02:00
Wim Taymans
7f134c1441 video: fix paletted format
RGB8_PALETTED -> RGB8P
Fix the definition of paletted formats, store the palette in the second
plane.
Make sure we copy the palette correctly in gst_video_frame_copy()
Don't do alignment on the palette in videopool
2012-05-31 13:44:43 +02:00
Sebastian Dröge
c84108de3c video: Update for libgstvideo API changes 2012-04-19 12:30:57 +02:00
Tim-Philipp Müller
3c6a3ad629 Use new gst_element_class_set_static_metadata() 2012-04-10 00:45:16 +01:00
Sebastian Dröge
ad42b16375 gst: Update for GST_PLUGIN_DEFINE() API change 2012-04-05 15:11:05 +02:00
Mark Nauwelaerts
6656affdfa videoconvert: plug caps leak 2012-04-02 17:03:48 +02:00
Wim Taymans
25137962ad fix for caps API changes 2012-03-11 19:04:41 +01:00
Wim Taymans
abca785f0f videoconvert: use base class new vmethods
Use the base class filter_meta to proxy all metadata upstream.
Use the base class transform_meta to let it copy all non-colorspace dependent
metadata.
2012-03-02 17:35:40 +01:00
Wim Taymans
5595c0a7df videoconvert: remove old metadata code
The subclass can help us better
2012-03-02 17:12:25 +01:00
Wim Taymans
df004b586e videoconvert: update for copy data changes 2012-03-02 13:11:36 +01:00
Wim Taymans
dcd277b916 videoconvert: proxy allocation meta when we can
Proxy all the metadata APIs in the allocation query.
Remove all metadata that is dependent on the colorspace, copy others.
2012-03-01 17:36:08 +01:00
Wim Taymans
7d58b0aa0b videoconvert: improve fixation
Use the fixed upstream caps to fixate the output caps by taking the
intersection.
2012-02-22 15:31:12 +01:00
Wim Taymans
9212619549 update for new fixate_caps function 2012-02-22 12:32:44 +01:00
Wim Taymans
6678c531e0 videoconvert: try to preserver colorimetry and chroma-site
Try to preserve the original chroma-site and colorimetry when nothing else was
negotiated.
2012-02-20 12:36:02 +01:00
Wim Taymans
6e1288bd00 videoconvert: avoid using _CATEGORY_GET 2012-02-09 16:00:59 +01:00
Wim Taymans
f31d5d7505 debug: add some performance debug 2012-02-09 15:28:54 +01:00
Wim Taymans
fcdc385aa1 port to new map API 2012-01-25 12:30:53 +01:00
Wim Taymans
a5f3d21723 videofilter: improve video filter
Flesh out the video filter base class. Make it parse the input and output caps
and turn them into GstVideoInfo. Map buffers as video frames and pass them to
the transform functions.
This allows us to also implement the propose and decide_allocation vmethods.
Implement the transform size method as well.
Update subclasses with the new improvements.
2011-12-21 23:46:53 +01:00
Wim Taymans
8a9c4ed69f videofilter: implement propose_allocation
With the new video bufferpool we can now implement the propose_allocation
vmethod on some video filter elements so that we can also use video metadata and
bufferpools when not operating in passthrough mode.
2011-12-21 18:58:42 +01:00
Wim Taymans
b53c02417c Revert "videoconvert: We can handle GST_VIDEO_META_API"
This reverts commit bd539753eb.

Adding the supported metadata to the query does nothing at this stage. Proposing
allocation parameters and supported metadata for upstream should use the
propose_allocation vmethod.
2011-12-05 20:33:41 +01:00
Edward Hervey
bd539753eb videoconvert: We can handle GST_VIDEO_META_API 2011-12-05 18:30:50 +01:00
Wim Taymans
892716e076 videoconvert: fix the transform_size function
The output size of a buffer does not depend on the input size but simply on the
caps of the output buffers. Don't let the base implementation deal with
unit_sizes, because input buffers might not be a multiple of that when they have
padding or non-default strides. instead, implement a transform size function
that simply calculate the natural size of an output buffer based on the caps.
2011-12-01 15:47:16 +01:00
René Stadler
5f3c8eb680 audioconvert, videoconvert: fix caps leak in transform_caps 2011-11-12 01:38:37 +01:00
Wim Taymans
e067e67923 rename meta* -> *meta 2011-11-02 09:04:27 +01:00
Wim Taymans
82d82203f6 base: fix for allocation methods rename 2011-08-26 14:26:37 +02:00
Wim Taymans
9ad89374a3 video: add colorimetry info
Make enums for the chroma siting for easier use in the videoinfo.
Make enums for the color range, color matrix, transfer function and the
color primaries. Add these values to the video info structure in a Colorimetry
structure. These values define the exact colors and are needed to perform
correct colorspace conversion. Use a couple of predefined colorimetry specs
because in practice only a few combinations are in use.
Add view_id to the video frames to identify the view this frame represents in
multiview video.
Remove old gst_video_parse_caps_framerate, use the videoinfo for this.
Port elements to new colorimetry info.
Remove deprecated colorspace property from videotestsrc.
2011-08-23 18:57:35 +02:00