Commit Graph

14 Commits

Author SHA1 Message Date
Lionel Landwerlin
69247c10f3 cogl-gst: emit ready signal on sink only after the first frame is uploaded
Developers listening to the 'ready' signal on CoglGstVideoSink might
call process the current frame once the signal is triggered. We need
to ensure the first frame has been uploaded before letting people know
that the sink is ready.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 53882aa0728c5540d8452045006a763e29d4306d)
2013-08-19 22:44:45 +01:00
Robert Bragg
1255d178e0 gst: don't use cogl_texture_new_with_data
This updates cogl-gst to use cogl_texture_2d_new_with_data instead of
cogl_texture_new_with_data in preparation for removing the automagic
apis in cogl-auto-texture.c

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit d3af8dc9bf6c4c1b09a4f7559b0375f848368c10)

Conflicts:
	cogl-gst/cogl-gst-video-sink.c
2013-07-29 16:59:15 +01:00
Robert Bragg
4d5af45d99 cogl-gst: adds _sink_is_ready() api
This adds a cogl_gst_video_sink_is_ready() for code to be able to
check if it's safe to call cogl_gst_video_sink_get_pipeline() or
cogl_gst_video_sink_setup_pipeline() without causing an error.
Normally an application can listen for the pipeline-ready signal but
sometimes a sink can be passed between components that didn't have an
opportunity to connect a signal handler, so they need a way to
directly check the status.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 9e7db391a87beee7c448f2a67b3e7202779ce9b2)
2013-07-25 16:46:18 +01:00
Lionel Landwerlin
6cc9074cfb cogl-gst: move initialization code so CoglGstVideoSink can be subclassed
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 2f6068cb6783edf6e05d6e55e9700e22f31cb233)
2013-07-09 22:52:49 +01:00
Lionel Landwerlin
86cd26b67c cogl-gst: protect public API using type checks
(cherry picked from commit 9a8c6536088368060a85f74d082c3dd8487b877c)
2013-07-09 13:32:16 +01:00
Robert Bragg
5faed43f29 cogl-gst: expose aspect ratio apis
This adds several utility apis that aim to make it as easy as possible
for an application to determine what size a video should be drawn at.

The important detail here is that these apis take into account the
pixel-aspect-ratio in addition to the video's own aspect ratio.

This patch updates the cogl-basic-video-player example to use the
cogl_gst_video_sink_fit_size() api to perform letterboxing.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit d26f17c97ff6b9f6d6211e0527d5965a85305a56)
2013-06-21 19:06:59 +01:00
Neil Roberts
ee559d4e93 cogl-gst: Remove the return value from attach_frame()
Previously cogl_gst_video_sink_attach_frame returned the last layer
used by the sink. This can also be retrieved via
cogl_gst_video_sink_get_free_layer so I don't think it's necessary to
return it here and it seems kind of out of place.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 0805f3e9db715fc2c97b7e60d4f3a25e7fa598fc)
2013-06-21 19:05:36 +01:00
Neil Roberts
735bf63063 cogl-gst: Move the PARAM macros into the C file
These are just internal convenience macros to define the GObject
properties so they shouldn't be in the public headers.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit b7b861aa87ad05a2c253afdd87323acd82fd988f)
2013-06-21 19:05:16 +01:00
Plamena Manolova
282505ba99 cogl-gst: Add a functions to facilitate layering
These functions are used when attaching frames at a start point other
than layer 0 is required. This could potentially be used to "layer"
videos and textures on top of each other in the CoglPipeline. This
layering could come handy if videos are used as alpha masks or normal
maps, or when arranging layers in a perticular order, so Cogl could
blend them nicely without extra hassle.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit f98b437c9ea79f04ef1ebbb6ff547f58b49b0008)
2013-06-21 19:03:04 +01:00
Neil Roberts
4eb9987699 cogl-gst: Don't replace previous layers in default shader
Previously, when CoglGST generated the default sampling snippet it
would set the replace string so that Cogl wouldn't generate any
redundant code for the other layers. However this also meant that it
wouldn't modulate with the default colour. This patch changes it to
set the combine mode on all of the layers to REPLACE(PREVIOUS) so that
it just copies the previous layer without generating any texture
sampling. That way the fragment snippet for the final layer can just
modulate the previous value with the video sampling function. This
makes it possible to set a color on the pipeline and have it modulate
the video. Also if we eventually add a way to insert layers before the
GST sampling layer then it can modulate with those.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit f5da8d2caf4b2fbaf6941642a5d5ea7b93d0dd0f)
2013-06-21 19:02:35 +01:00
Neil Roberts
e46ad9a91e cogl-gst: Use alpha textures instead of luminance textures
Luminance textures are not supported on GL3 and as the textures are
accessed via a shader anyway it doesn't seem like it should make much
difference which component the single-component textures are in. Cogl
already has code to fake alpha textures via the texture swizzle
extension on GL3.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit ca1666860a325fa4d2362cdd38297d6281e997d8)
2013-06-21 19:01:56 +01:00
Neil Roberts
7acdf0114e cogl-gst: More pedantic style fixes
• Fixes some overly long lines, hugging asterisks in the pointer type
  declarations and indentation issues.

• Tidies up the GLSL source so that it will look nicer in the
  debug output.

• Removes the backwards ‘parent_class’ define which hacks the
  implementation of the G_DEFINE_TYPE macro and just uses the full
  type name instead.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 3ffe8979da4d4dc7deb221e5653b6f24f41b412c)
2013-06-21 19:00:15 +01:00
Robert Bragg
595a06e415 cogl-gst: remove experimental "HW Decode" code
The experimental HW decode path was adapted from clutter-gst based on
some experimental gstreamer api. This path was disabled by upstream
gstreamer developers back in september last year due to instabilities.
Without understanding how the experimental api is implemented it seems
rather strange to be plucking out the GL handle of a cogl texture and
passing that to some unknown gstreamer code which would presumably
somehow have to use the same GL context as Cogl to be able to do
something with that texture. For now we can strip all of this unused
code and it would be easy enough to re-instate later if it's useful.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 2a24cb9f2a283af87bb685b3e9c7e3af1ffeab6e)
2013-06-21 18:59:09 +01:00
Plamena Manolova
1eca1631a7 Include CoglGst
CoglGst is a GStreamer integration library that facilitates
video playback using the Cogl API. It works by retrieving
each video frame from the GStreamer pipeline and attaching
it to a Cogl pipeline in the form of a Cogl texture along
with possible color model conversion shaders. The pipeline
is then retrieved by the user during each draw. An example
use of the CoglGst API is included in the examples directory.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit dfb94cf4b0b6b42d6465df362a0c0af780596890)
2013-06-21 18:57:24 +01:00