Commit graph

22 commits

Author SHA1 Message Date
Sebastian Dröge
eb92865ea1 cccombiner: Add new closed caption combiner element
This is the inverse of ccextractor: it takes a video and closed caption
stream and places the closed caption metas on the video output buffers.
2018-11-06 16:21:42 +00:00
Sebastian Dröge
7ba9493ff1 ccextractor: Handle multiple caption metas per buffer 2018-11-06 16:21:06 +00:00
Sebastian Dröge
7cfe6b0bf3 ccextractor: Support changes of the caption type
https://bugzilla.gnome.org/show_bug.cgi?id=797370
2018-11-02 12:22:15 +02:00
Sebastian Dröge
3812985a9e ccextractor: Use gst_caps_new_simple() instead of gst_caps_from_string() 2018-09-18 17:47:04 +03:00
Víctor Manuel Jáquez Leal
85f142a8e2 closedcaption: comment out unused function
When compiling with clang-6 this error raises:

raw_decoder.c:411:1: error: unused function 'cpr1204_crc'
[-Werror,-Wunused-function]

This patch only comments it out.

https://bugzilla.gnome.org/show_bug.cgi?id=796957
2018-08-14 13:31:49 +02:00
Víctor Manuel Jáquez Leal
808b404e88 closedcaption: avoid implicit convertion of enums
When compiling with clang-6 this error pops out:

raw_decoder.c:1011:62: error: implicit conversion from enumeration
type 'const vbi_modulation' to different enumeration type
'vbi3_modulation' [-Werror,-Wenum-conversion]

This is because function vbi3_bit_slicer_set_params() sets
vbi3_modulation as enum type parameter, nonetheless vbi_modulation
enum is passed. Both enums looks semantically equal, thus the fix is a
simple cast.

https://bugzilla.gnome.org/show_bug.cgi?id=796957
2018-08-14 13:31:49 +02:00
Sebastian Dröge
f028f817e3 ceaccoverlay: Initialize debug category 2018-08-02 16:19:55 +03:00
Nirbheek Chauhan
b55dfb5313 Add feature options for almost all plugins
The only plugins remaining are those that haven't been ported to Meson
yet, and msdk. Also, the tests are still automagic.

https://bugzilla.gnome.org/show_bug.cgi?id=795107
2018-07-27 19:04:38 +05:30
Arun Raghavan
c6f19511b5 closedcaption: Fix compilation on older compilers
For when -std=c99 (or later) is not the default.
2018-07-09 06:40:29 +05:30
Olivier Crête
bfcc073ed4 ext/closedcaption/misc.h: Transform into UTF-8 2018-06-21 08:49:01 -04:00
Edward Hervey
5d697cd804 closedcaption: Fix compilation without debugging 2018-05-28 15:55:57 +02:00
Edward Hervey
a41fb3c6df ceaccoverlay: New CEA-708 Closed Caption decoder and overlayer
This new element allows decoding and overlaying CEA-708 Closed Caption
streams over video.

* Supports CDP and cc_data closedcaption/x-cea-708 streams
* Uses pango to render CC stream
* Support GstVideoOverlayComposition meta if downstream supports is

Tested on various test files.

Remains to be fixed/improved:
* Switch to GstByteReader (for code safety)
* Switch to GString (instead of manual pango string construction)
* Move pango/rendering code outside of main 708 decoder file (so
  that actual CC parser/decoder can be (re)used in other scenarios).

Initial patches and improvements by:
* CableLabs RUIH-RI Team <ruihri@cablelabs.com>
* Steve Maynard <steve@secondstryke.com>
* cjun.wang" <cjun.wang@samsung.com>

https://bugzilla.gnome.org/show_bug.cgi?id=704881
2018-05-28 15:29:01 +02:00
Tim-Philipp Müller
aab111b979 closedcaption: fix meson build 2018-05-28 14:17:05 +01:00
Edward Hervey
2a1553cb88 closedcaption: Add new "line 21 VBI" CC decoder
Allows detecting and extracting CEA608 closed caption present on
the VBI of analog NTSC SD signals.
2018-05-28 15:03:57 +02:00
Edward Hervey
9ee58b5aeb closedcaption: zvbi: Add gst-debug category to zvbi code
And adapt their logging system to go through it
2018-05-28 15:04:24 +02:00
Edward Hervey
af9e9d613a closedcaption: zvbi: Disable unused legacy bit slicer
The code only uses the new 'optimized' bit slicer
2018-05-28 15:04:19 +02:00
Edward Hervey
61334a38a3 closedcaption: zvbi: Enforce strict line21 CC detection
zvbi switched to a lot more flexible CC detection in VBI.

The problem is that it returns a *lot* of non-VBI lines as containing
CC which isn't the case.
2018-05-28 15:04:14 +02:00
Edward Hervey
7ea93b9f94 closedcaption: zvbi: Comment out bogus redefinition
All this code should be converted to glib eventually, but for now
just comment out a function which isn't even used
2018-05-28 15:04:02 +02:00
Edward Hervey
c3a9835c05 closedcaption: zvbi: Remove dead code
* RGB8 is never used
* some inline functions were never used
2018-05-28 15:03:57 +02:00
Edward Hervey
b0b02e7cb5 closedcaption: Include zvbi raw vbi decoder code
Current code from zapping/zvbi as of 2018-03-14. Files copied
are all LGPL v2+.

Changes from original zvbi code:
* Switch to gst-debug logging system
* Use glib for endianness detection
* Fix compilation warnings
2018-05-28 14:50:01 +02:00
Tim-Philipp Müller
483892d16a closedcaption: add meson build files 2018-05-28 11:09:45 +01:00
Edward Hervey
2550718f59 ext: New ccextractor element
Allows extracting GstVideoCaptionMeta from a stream and outputs
it to a standalone stream.

Part of a new 'ext' closedcaption plugin, since more features are
going to be added, which will depend on external dependencies such
as pango.
2018-05-28 11:54:17 +02:00