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glmixer: Implement GstVideoAggregator::find_best_format()

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Without this, we will fixate weird pixel-aspect-ratios like 1/2147483647. But
in the end, all the negotiation code in videoaggregator needs a big cleanup
and videoaggregator needs to get rid of the software-mixer specific things
everywhere.
This commit is contained in:
Sebastian Dröge 2015-05-11 15:54:52 +03:00
parent 628d8d9599
commit b8941efc4a
1 changed files with 21 additions and 1 deletions
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22
ext/gl/gstglmixer.c
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@ -114,6 +114,26 @@ _negotiated_caps (GstVideoAggregator * vagg, GstCaps * caps)
return ret;
}
static void
_find_best_format (GstVideoAggregator * vagg, GstCaps * downstream_caps,
GstVideoInfo * best_info, gboolean * at_least_one_alpha)
{
GstVideoInfo tmp_info;
GST_VIDEO_AGGREGATOR_CLASS (parent_class)->find_best_format (vagg,
downstream_caps, best_info, at_least_one_alpha);
gst_video_info_set_format (&tmp_info, GST_VIDEO_FORMAT_RGBA,
best_info->width, best_info->height);
tmp_info.par_n = best_info->par_n;
tmp_info.par_d = best_info->par_d;
tmp_info.fps_n = best_info->fps_n;
tmp_info.fps_d = best_info->fps_d;
tmp_info.flags = best_info->flags;
tmp_info.interlace_mode = best_info->interlace_mode;
*best_info = tmp_info;
}
static gboolean
gst_gl_mixer_propose_allocation (GstGLBaseMixer * base_mix,
GstGLBaseMixerPad * base_pad, GstQuery * decide_query, GstQuery * query)
@ -366,7 +386,7 @@ gst_gl_mixer_class_init (GstGLMixerClass * klass)
videoaggregator_class->get_output_buffer = gst_gl_mixer_get_output_buffer;
videoaggregator_class->negotiated_caps = _negotiated_caps;
videoaggregator_class->update_caps = _update_caps;
videoaggregator_class->find_best_format = NULL;
videoaggregator_class->find_best_format = _find_best_format;
mix_class->propose_allocation = gst_gl_mixer_propose_allocation;
mix_class->decide_allocation = gst_gl_mixer_decide_allocation;