Commit graph

149 commits

Author SHA1 Message Date
Sebastian Dröge
ce66aea7b0 videomixer[2]: Use orc_memset() instead of memset() 2011-04-01 11:35:26 +02:00
Lane Brooks
ef5ac986f1 videomixer: Add transparent background option for alpha channel formats 2011-04-01 11:35:26 +02:00
Lane Brooks
69b5aedc58 videomixer2: Add transparent background option for alpha channel formats
This option allows the videomixer2 element to output a valid alpha
channel when the inputs contain a valid alpha channel. This allows
mixing to occur in multiple stages serially.

The following pipeline shows an example of such a pipeline:

gst-launch videotestsrc background-color=0x000000 pattern=ball ! video/x-raw-yuv,format=\(fourcc\)AYUV ! videomixer2 background=transparent name=mix1 ! videomixer2 name=mix2 ! ffmpegcolorspace ! autovideosink  videotestsrc ! video/x-raw-yuv,format=\(fourcc\)AYUV ! mix2.

The first videotestsrc in this pipeline creates a moving ball on a
transparent background. It is then passed to the first videomixer2.
Previously, this videomixer2 would have forced the alpha channel to
1.0 and given a background of checker, black, or white to the
stream. With this patch, however, you can now specify the background
as transparent, and the alpha channel of the input will be
preserved. This allows for further mixing downstream, as is shown in
the above pipeline where the a second videomixer2 is used to mix in a
background of an smpte videotestsrc. So the result is a ball hovering
over the smpte test source. This could, of course, have been
accomplished with a single mixer element, but staged mixing is useful
when it is not convenient to mix all video at once (e.g. a pipeline
where a foreground and background bin exist and are mixed at the final
output, but the foreground bin needs an internal mixer to create
transitions between clips).

Fixes bug #639994.
2011-04-01 11:35:26 +02:00
Edward Hervey
6e1c701502 Revert "Check that collectpads exists before removing pad"
This reverts commit 8e6b876e76.

Depends on a core commit that was reverted
2011-02-21 12:25:19 +01:00
David Schleef
8e6b876e76 Check that collectpads exists before removing pad
The core now calls release pad from finalize, at which point
the collectpads might have already been freed.
2011-02-20 23:46:01 -08:00
David Schleef
e9d4710cc8 Update generated orc code 2010-10-15 14:02:57 -07:00
Tim-Philipp Müller
4451718eff videomixer2: pre-register pad class properly with g_type_class_ref
Fix code to match the comment. Also, there's no need to register the
background enum type again, this is already done via install_property.
2010-09-23 21:22:45 +01:00
Stefan Kost
1c47115b8e videmixer: add a example showing how to use the child properties
Show how to position and set the alpho of the videos on gst-launch.
2010-09-06 09:57:57 +03:00
David Schleef
85aed94676 videomixer: orc_init() doesn't need to be called
There's no need to call orc_init() unless you're using the Orc
API directly.  All code created by orcc is guaranteed to work
without calling orc_init().
2010-09-05 18:45:21 -07:00
Thiago Santos
de8fda9cc2 videomixer2: Fail when caps are incompatible
Do not forget to return false when caps are incompatible.
2010-09-05 22:34:36 -03:00
Thiago Santos
8435529073 videomixer: Only init orc if it is available
Put some ifdef around orc_init to prevent build errors
2010-09-05 20:56:52 -03:00
David Schleef
294d5c48da update disted Orc files 2010-09-04 11:43:21 -07:00
Sebastian Dröge
e79742205c videomixer2: Add documentation and add to the docs 2010-09-04 14:55:43 +02:00
Sebastian Dröge
bcfd60a8d2 videomixer2: Add videomixer2 element
This is based on collectpads2 and is synchronizing
all streams based on the running time.

New features compared to old videomixer:
 * Synchronizing frames on the running time
 * Improved and simplified negotiation
 * Full QoS support
 * Variable framerate support

Fixes bug #626048, #624905.
2010-09-04 14:52:11 +02:00
Sebastian Dröge
77c7f5fdcd videomixer: Update disted ORC files 2010-09-04 14:52:09 +02:00
Sebastian Dröge
6da14d0c41 videomixer: Optimize ARGB blending and implement BGRA blending with orc
This now means, that we have absolutely no handwritten assembly anymore
in videomixer and it's also faster now when using SSE.
2010-09-04 14:52:09 +02:00
David Schleef
7cfa519547 videomixer: Add orc implementation for blending
videomixer: Add orc implementation for blending
2010-09-04 14:52:08 +02:00
David Schleef
1ace738c3a videomixer: Fix example pipelines
videomixer: Fix example pipelines
2010-09-04 14:52:08 +02:00
Tim-Philipp Müller
b26897dd84 Release 0.10.25 2010-09-02 23:44:19 +01:00
Sebastian Dröge
9e981f6c2d 0.10.24.4 pre-release 2010-08-21 21:41:36 +02:00
Sebastian Dröge
19c8226c6d videomixer: Fix pipeline in the documentation
Make sure that we have the same color format on all streams, i.e. AYUV

Fixes bug #625452.
2010-08-06 19:24:56 +02:00
Sebastian Dröge
fc00857c82 videomixer: Move debug categories into the source files and add debug category for the blend functions 2010-08-04 19:43:08 +02:00
Sebastian Dröge
38124ef5e5 videomixer: Only reset QoS information and send a NEWSEGMENT event downstream for NEWSEGMENT events on the master pad 2010-07-21 10:23:30 +02:00
Tim-Philipp Müller
240dec038c gst: update orc files 2010-06-26 18:41:49 +01:00
Sebastian Dröge
e84136ba03 videomixer: Port most blending related functions to orc
Only remaining MMX implementation is the ARGB/BGRA/AYUV blending
for which we first need the orc compositing opcodes.
2010-06-10 22:46:00 +02:00
Sebastian Dröge
e87802efdd videomixer: Replace some tabs by spaces 2010-06-10 22:46:00 +02:00
David Schleef
b83cd99aeb videomixer: liboil to orc conversion 2010-06-08 17:25:35 -07:00
Sebastian Dröge
f16ed4a91c gst: Don't use GST_DEBUG_FUNCPTR for GObject vfuncs 2010-06-06 17:52:40 +02:00
Edward Hervey
2ff87c0fb9 videomixer: if we're not linked downstream, we can do any format
Stupid me, assuming _get_allowed_caps() would actually return the
pad templates if there was no peer.
2010-06-04 11:44:09 +02:00
Edward Hervey
d72a2fb6da videomixer: Don't return caps in get_caps() that will be rejected
This commit basically puts _get_caps() in sync with accept_caps().

If we don't have a master pad OR the master pad caps aren't negotiated
then we just return the downstream allowed caps.

If we have a master pad with negotiated caps, we return those caps
with a free range of width/height/framerate
2010-06-03 19:01:14 +02:00
Edward Hervey
59dcdc37a0 videomixer: filter caps returned from downstream with our pad template. 2010-06-01 20:45:29 +02:00
Edward Hervey
01abf5b94e videomixer: Implement sinkpad GetCapsFunction.
This allows returning only the formats, width, height, framerate
and pixel-aspect-ratio that downstream can support.

https://bugzilla.gnome.org/show_bug.cgi?id=620148
2010-06-01 12:42:10 +02:00
Sebastian Dröge
f5bca501e5 videomixer: Don't mix input with different pixel aspect ratios
Fixes bug #618530.
2010-06-01 11:21:29 +02:00
Sebastian Dröge
85c6b9b712 videomixer: Make selection of a sinkpad number threadsafe 2010-05-05 19:35:48 +02:00
Sebastian Dröge
6dd3edd0f7 videomixer: Add support for YUY2, YVYU, UYVY 2010-04-29 19:28:22 +02:00
Sebastian Dröge
bd0b307a74 videomixer: Add support for Y444, Y42B, Y41B and YV12 2010-04-29 19:28:22 +02:00
Sebastian Dröge
5a530b19e8 videomixer: Fix byte order for MMX ARGB/AYUV color filling
Fixes bug #616409.
2010-04-22 13:30:55 +02:00
Sebastian Dröge
a27856e6b8 videomixer: Fix AYUV checker/color filling 2010-04-21 17:53:49 +02:00
Sebastian Dröge
3f88dce350 videomixer: Add i387 floating point registers to the clobbered registers list
They are the same as the mm0-mm7 MMX registers and will be overwritten
by the assembly code if gcc doesn't know about the MMX registers.

Note: They're all added to the list of clobbered registers in all cases
and not only when __MMX__ is not defined just to make sure that no other
bugs happen with this code just because some compiler version gets things
wrong.

Fixes bug #614466.
2010-04-19 16:57:19 +02:00
Sebastian Dröge
fe4ff4f324 videomixer: Add support for ABGR and RGBA
Now all 4 ARGB variants are supported by videomixer.
2010-03-20 17:32:48 +01:00
Tim-Philipp Müller
073201b329 build: Makefile.am cleanups
Mostly add $(GST_BASE_CFLAGS) where it was missing, but also fix up
order of flags and libs if needed (see docs/random/moving-plugins).
2010-03-18 21:34:24 +00:00
Benjamin Otte
1055aaa9cb Add -Wredundant-decls warning flag
Also fix compile issues
2010-03-17 19:35:10 +01:00
Benjamin Otte
3342b1679e Add -Wmissing-declarations -Wmissing-prototypes warning flags
And fix all the warnings.
2010-03-17 18:23:28 +01:00
Alessandro Decina
49b2a94644 Make sure FLUSH_STOP is sent so not to leave downstream flushing. 2010-02-24 02:05:49 +01:00
Wim Taymans
caec8d9837 videomixer: fix timestamp problems
When the pad with the highest framerate goes EOS, instead of not timestamping
output buffers, intepollate timestamps and durations from the last seen ones.

Fixes #608026
2010-02-12 13:53:57 +01:00
Sebastian Dröge
41b17ec2a7 videomixer: Fix assembly register constraints
Fixes bug #608209.
2010-01-27 16:35:10 +01:00
Stefan Kost
404e673ac0 videomixer: use 'q' constraint instead of 'r'
This avoids the "bad register name `%dil'" compilation errors on 32bit where
because of 'r' gcc puts the value in a general purpose register and then tries
to access the lower part as %dil/%sil which is not existing on 32bit. 'q' requests
a-d registers
2010-01-13 16:48:46 +02:00
Sebastian Dröge
daa52708b3 videomixer: Implement basic QoS
This drops frames if they're too late anyway before blending and all
that starts but QoS events are not forwarded upstream. In the future
the QoS events should be transformed somehow and forwarded upstream.
2010-01-11 19:32:35 +01:00
Sebastian Dröge
6158f401a1 videomixer: Add MMX implementations for I420 and all non-alpha RGB formats 2010-01-11 18:37:45 +01:00
Sebastian Dröge
2950262186 videomixer: Refactor processing functions
This allows easier plugging of optimized processing functions
in the future, like for SSE or AltiVec.
2010-01-11 18:37:44 +01:00