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91b7a9497b
This adds the alignment field to the template caps. Without this field set, the auto-plugger will see fixed caps and will use gst_caps_is_subset() against the caps produced by the parser. This is a challenge for all cases where a parser can do conversion. This is fixed by adding alignment field, which makes the auto-pluggers do an intersection of the caps as it gets unfixed caps after intersection now. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1439>
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/* GStreamer
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* Copyright (C) <2021> Collabora Ltd.
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* Author: Nicolas Dufresne <nicolas.dufresne@collabora.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-vp9alphadecodebin
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* @title: Wrapper to decode VP9 alpha using vp9dec
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*
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* Use two `vp9dec` instance in order to decode VP9 alpha channel.
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*
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* Since: 1.20
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstvp9alphadecodebin.h"
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-vp9, codec-alpha = (boolean) true, "
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"alignment = super-frame")
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);
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struct _GstVp9AlphaDecodeBin
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{
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GstAlphaDecodeBin parent;
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};
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#define gst_vp9_alpha_decode_bin_parent_class parent_class
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G_DEFINE_TYPE (GstVp9AlphaDecodeBin, gst_vp9_alpha_decode_bin,
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GST_TYPE_ALPHA_DECODE_BIN);
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GST_ELEMENT_REGISTER_DEFINE (vp9_alpha_decode_bin, "vp9alphadecodebin",
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GST_RANK_PRIMARY + GST_ALPHA_DECODE_BIN_RANK_OFFSET,
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GST_TYPE_VP9_ALPHA_DECODE_BIN);
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static void
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gst_vp9_alpha_decode_bin_class_init (GstVp9AlphaDecodeBinClass * klass)
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{
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GstAlphaDecodeBinClass *adbin_class = (GstAlphaDecodeBinClass *) klass;
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GstElementClass *element_class = (GstElementClass *) klass;
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adbin_class->decoder_name = "vp9dec";
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gst_element_class_add_static_pad_template (element_class, &sink_template);
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gst_element_class_set_static_metadata (element_class,
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"VP9 Alpha Decoder", "Codec/Decoder/Video",
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"Wrapper bin to decode VP9 with alpha stream.",
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"Nicolas Dufresne <nicolas.dufresne@collabora.com>");
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}
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static void
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gst_vp9_alpha_decode_bin_init (GstVp9AlphaDecodeBin * self)
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{
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}
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