mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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16fbd4f86f
Avoids useless check of downstream caps when handling an accept-caps query Elements: jpegdec, pngdec, vp8dec, vp9dec
638 lines
19 KiB
C
638 lines
19 KiB
C
/* VP9
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* Copyright (C) 2006 David Schleef <ds@schleef.org>
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* Copyright (C) 2008,2009,2010 Entropy Wave Inc
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* Copyright (C) 2010-2013 Sebastian Dröge <slomo@circular-chaos.org>
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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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/**
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* SECTION:element-vp9dec
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* @see_also: vp9enc, matroskademux
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*
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* This element decodes VP9 streams into raw video.
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* <ulink url="http://www.webmproject.org">VP9</ulink> is a royalty-free
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* video codec maintained by <ulink url="http://www.google.com/">Google
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* </ulink>. It's the successor of On2 VP3, which was the base of the
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* Theora video codec.
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*
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* <refsect2>
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* <title>Example pipeline</title>
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* |[
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* gst-launch-1.0 -v filesrc location=videotestsrc.webm ! matroskademux ! vp9dec ! videoconvert ! videoscale ! autovideosink
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* ]| This example pipeline will decode a WebM stream and decodes the VP9 video.
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* </refsect2>
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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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#ifdef HAVE_VP9_DECODER
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#include <string.h>
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#include "gstvp8utils.h"
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#include "gstvp9dec.h"
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#include <gst/video/gstvideometa.h>
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#include <gst/video/gstvideopool.h>
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GST_DEBUG_CATEGORY_STATIC (gst_vp9dec_debug);
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#define GST_CAT_DEFAULT gst_vp9dec_debug
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#define DEFAULT_POST_PROCESSING FALSE
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#define DEFAULT_POST_PROCESSING_FLAGS (VP8_DEBLOCK | VP8_DEMACROBLOCK)
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#define DEFAULT_DEBLOCKING_LEVEL 4
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#define DEFAULT_NOISE_LEVEL 0
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#define DEFAULT_THREADS 1
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enum
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{
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PROP_0,
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PROP_POST_PROCESSING,
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PROP_POST_PROCESSING_FLAGS,
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PROP_DEBLOCKING_LEVEL,
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PROP_NOISE_LEVEL,
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PROP_THREADS
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};
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#define C_FLAGS(v) ((guint) v)
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#define GST_VP9_DEC_TYPE_POST_PROCESSING_FLAGS (gst_vp9_dec_post_processing_flags_get_type())
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static GType
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gst_vp9_dec_post_processing_flags_get_type (void)
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{
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static const GFlagsValue values[] = {
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{C_FLAGS (VP8_DEBLOCK), "Deblock", "deblock"},
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{C_FLAGS (VP8_DEMACROBLOCK), "Demacroblock", "demacroblock"},
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{C_FLAGS (VP8_ADDNOISE), "Add noise", "addnoise"},
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{C_FLAGS (VP8_MFQE), "Multi-frame quality enhancement", "mfqe"},
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{0, NULL, NULL}
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};
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static volatile GType id = 0;
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if (g_once_init_enter ((gsize *) & id)) {
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GType _id;
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_id = g_flags_register_static ("GstVP9DecPostProcessingFlags", values);
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g_once_init_leave ((gsize *) & id, _id);
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}
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return id;
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}
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#undef C_FLAGS
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static void gst_vp9_dec_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_vp9_dec_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static gboolean gst_vp9_dec_start (GstVideoDecoder * decoder);
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static gboolean gst_vp9_dec_stop (GstVideoDecoder * decoder);
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static gboolean gst_vp9_dec_set_format (GstVideoDecoder * decoder,
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GstVideoCodecState * state);
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static gboolean gst_vp9_dec_flush (GstVideoDecoder * decoder);
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static GstFlowReturn gst_vp9_dec_handle_frame (GstVideoDecoder * decoder,
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GstVideoCodecFrame * frame);
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static gboolean gst_vp9_dec_decide_allocation (GstVideoDecoder * decoder,
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GstQuery * query);
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static GstStaticPadTemplate gst_vp9_dec_sink_template =
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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")
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);
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static GstStaticPadTemplate gst_vp9_dec_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ I420, YV12, Y42B, Y444 }"))
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);
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#define parent_class gst_vp9_dec_parent_class
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G_DEFINE_TYPE (GstVP9Dec, gst_vp9_dec, GST_TYPE_VIDEO_DECODER);
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static void
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gst_vp9_dec_class_init (GstVP9DecClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *element_class;
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GstVideoDecoderClass *base_video_decoder_class;
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gobject_class = G_OBJECT_CLASS (klass);
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element_class = GST_ELEMENT_CLASS (klass);
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base_video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
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gobject_class->set_property = gst_vp9_dec_set_property;
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gobject_class->get_property = gst_vp9_dec_get_property;
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g_object_class_install_property (gobject_class, PROP_POST_PROCESSING,
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g_param_spec_boolean ("post-processing", "Post Processing",
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"Enable post processing", DEFAULT_POST_PROCESSING,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_POST_PROCESSING_FLAGS,
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g_param_spec_flags ("post-processing-flags", "Post Processing Flags",
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"Flags to control post processing",
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GST_VP9_DEC_TYPE_POST_PROCESSING_FLAGS, DEFAULT_POST_PROCESSING_FLAGS,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_DEBLOCKING_LEVEL,
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g_param_spec_uint ("deblocking-level", "Deblocking Level",
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"Deblocking level",
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0, 16, DEFAULT_DEBLOCKING_LEVEL,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_NOISE_LEVEL,
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g_param_spec_uint ("noise-level", "Noise Level",
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"Noise level",
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0, 16, DEFAULT_NOISE_LEVEL,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_THREADS,
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g_param_spec_uint ("threads", "Max Threads",
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"Maximum number of decoding threads",
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1, 16, DEFAULT_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_vp9_dec_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_vp9_dec_sink_template));
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gst_element_class_set_static_metadata (element_class,
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"On2 VP9 Decoder",
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"Codec/Decoder/Video",
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"Decode VP9 video streams", "David Schleef <ds@entropywave.com>, "
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"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
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base_video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_vp9_dec_start);
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base_video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_vp9_dec_stop);
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base_video_decoder_class->flush = GST_DEBUG_FUNCPTR (gst_vp9_dec_flush);
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base_video_decoder_class->set_format =
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GST_DEBUG_FUNCPTR (gst_vp9_dec_set_format);
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base_video_decoder_class->handle_frame =
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GST_DEBUG_FUNCPTR (gst_vp9_dec_handle_frame);
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base_video_decoder_class->decide_allocation = gst_vp9_dec_decide_allocation;
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GST_DEBUG_CATEGORY_INIT (gst_vp9dec_debug, "vp9dec", 0, "VP9 Decoder");
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}
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static void
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gst_vp9_dec_init (GstVP9Dec * gst_vp9_dec)
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{
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GstVideoDecoder *decoder = (GstVideoDecoder *) gst_vp9_dec;
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GST_DEBUG_OBJECT (gst_vp9_dec, "gst_vp9_dec_init");
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gst_video_decoder_set_packetized (decoder, TRUE);
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gst_vp9_dec->post_processing = DEFAULT_POST_PROCESSING;
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gst_vp9_dec->post_processing_flags = DEFAULT_POST_PROCESSING_FLAGS;
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gst_vp9_dec->deblocking_level = DEFAULT_DEBLOCKING_LEVEL;
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gst_vp9_dec->noise_level = DEFAULT_NOISE_LEVEL;
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gst_video_decoder_set_needs_format (decoder, TRUE);
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gst_video_decoder_set_use_default_pad_acceptcaps (decoder, TRUE);
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GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_DECODER_SINK_PAD (decoder));
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}
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static void
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gst_vp9_dec_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstVP9Dec *dec;
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g_return_if_fail (GST_IS_VP9_DEC (object));
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dec = GST_VP9_DEC (object);
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GST_DEBUG_OBJECT (object, "gst_vp9_dec_set_property");
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switch (prop_id) {
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case PROP_POST_PROCESSING:
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dec->post_processing = g_value_get_boolean (value);
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break;
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case PROP_POST_PROCESSING_FLAGS:
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dec->post_processing_flags = g_value_get_flags (value);
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break;
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case PROP_DEBLOCKING_LEVEL:
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dec->deblocking_level = g_value_get_uint (value);
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break;
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case PROP_NOISE_LEVEL:
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dec->noise_level = g_value_get_uint (value);
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break;
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case PROP_THREADS:
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dec->threads = g_value_get_uint (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_vp9_dec_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstVP9Dec *dec;
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g_return_if_fail (GST_IS_VP9_DEC (object));
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dec = GST_VP9_DEC (object);
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switch (prop_id) {
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case PROP_POST_PROCESSING:
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g_value_set_boolean (value, dec->post_processing);
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break;
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case PROP_POST_PROCESSING_FLAGS:
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g_value_set_flags (value, dec->post_processing_flags);
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break;
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case PROP_DEBLOCKING_LEVEL:
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g_value_set_uint (value, dec->deblocking_level);
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break;
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case PROP_NOISE_LEVEL:
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g_value_set_uint (value, dec->noise_level);
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break;
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case PROP_THREADS:
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g_value_set_uint (value, dec->threads);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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gst_vp9_dec_start (GstVideoDecoder * decoder)
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{
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GstVP9Dec *gst_vp9_dec = GST_VP9_DEC (decoder);
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GST_DEBUG_OBJECT (gst_vp9_dec, "start");
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gst_vp9_dec->decoder_inited = FALSE;
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return TRUE;
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}
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static gboolean
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gst_vp9_dec_stop (GstVideoDecoder * base_video_decoder)
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{
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GstVP9Dec *gst_vp9_dec = GST_VP9_DEC (base_video_decoder);
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GST_DEBUG_OBJECT (gst_vp9_dec, "stop");
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if (gst_vp9_dec->output_state) {
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gst_video_codec_state_unref (gst_vp9_dec->output_state);
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gst_vp9_dec->output_state = NULL;
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}
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if (gst_vp9_dec->input_state) {
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gst_video_codec_state_unref (gst_vp9_dec->input_state);
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gst_vp9_dec->input_state = NULL;
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}
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if (gst_vp9_dec->decoder_inited)
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vpx_codec_destroy (&gst_vp9_dec->decoder);
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gst_vp9_dec->decoder_inited = FALSE;
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return TRUE;
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}
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static gboolean
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gst_vp9_dec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
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{
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GstVP9Dec *gst_vp9_dec = GST_VP9_DEC (decoder);
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GST_DEBUG_OBJECT (gst_vp9_dec, "set_format");
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if (gst_vp9_dec->decoder_inited)
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vpx_codec_destroy (&gst_vp9_dec->decoder);
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gst_vp9_dec->decoder_inited = FALSE;
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if (gst_vp9_dec->output_state) {
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gst_video_codec_state_unref (gst_vp9_dec->output_state);
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gst_vp9_dec->output_state = NULL;
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}
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if (gst_vp9_dec->input_state)
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gst_video_codec_state_unref (gst_vp9_dec->input_state);
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gst_vp9_dec->input_state = gst_video_codec_state_ref (state);
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return TRUE;
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}
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static gboolean
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gst_vp9_dec_flush (GstVideoDecoder * base_video_decoder)
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{
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GstVP9Dec *decoder;
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GST_DEBUG_OBJECT (base_video_decoder, "flush");
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decoder = GST_VP9_DEC (base_video_decoder);
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if (decoder->output_state) {
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gst_video_codec_state_unref (decoder->output_state);
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decoder->output_state = NULL;
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}
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if (decoder->decoder_inited)
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vpx_codec_destroy (&decoder->decoder);
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decoder->decoder_inited = FALSE;
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return TRUE;
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}
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static void
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gst_vp9_dec_send_tags (GstVP9Dec * dec)
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{
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GstTagList *list;
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list = gst_tag_list_new_empty ();
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gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
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GST_TAG_VIDEO_CODEC, "VP9 video", NULL);
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gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (dec),
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gst_event_new_tag (list));
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}
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static void
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gst_vp9_dec_image_to_buffer (GstVP9Dec * dec, const vpx_image_t * img,
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GstBuffer * buffer)
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{
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int deststride, srcstride, height, width, line, comp;
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guint8 *dest, *src;
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GstVideoFrame frame;
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GstVideoInfo *info = &dec->output_state->info;
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if (!gst_video_frame_map (&frame, info, buffer, GST_MAP_WRITE)) {
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GST_ERROR_OBJECT (dec, "Could not map video buffer");
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return;
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}
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for (comp = 0; comp < 3; comp++) {
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dest = GST_VIDEO_FRAME_COMP_DATA (&frame, comp);
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src = img->planes[comp];
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width = GST_VIDEO_FRAME_COMP_WIDTH (&frame, comp)
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* GST_VIDEO_FRAME_COMP_PSTRIDE (&frame, comp);
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height = GST_VIDEO_FRAME_COMP_HEIGHT (&frame, comp);
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deststride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, comp);
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srcstride = img->stride[comp];
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if (srcstride == deststride) {
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GST_TRACE_OBJECT (dec, "Stride matches. Comp %d: %d, copying full plane",
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comp, srcstride);
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memcpy (dest, src, srcstride * height);
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} else {
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GST_TRACE_OBJECT (dec, "Stride mismatch. Comp %d: %d != %d, copying "
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"line by line.", comp, srcstride, deststride);
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for (line = 0; line < height; line++) {
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memcpy (dest, src, width);
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dest += deststride;
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src += srcstride;
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}
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}
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}
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gst_video_frame_unmap (&frame);
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}
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static GstFlowReturn
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open_codec (GstVP9Dec * dec, GstVideoCodecFrame * frame)
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{
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int flags = 0;
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vpx_codec_stream_info_t stream_info;
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vpx_codec_caps_t caps;
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vpx_codec_dec_cfg_t cfg;
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vpx_codec_err_t status;
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GstMapInfo minfo;
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memset (&stream_info, 0, sizeof (stream_info));
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memset (&cfg, 0, sizeof (cfg));
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stream_info.sz = sizeof (stream_info);
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if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
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GST_ERROR_OBJECT (dec, "Failed to map input buffer");
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return GST_FLOW_ERROR;
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}
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status = vpx_codec_peek_stream_info (&vpx_codec_vp9_dx_algo,
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minfo.data, minfo.size, &stream_info);
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gst_buffer_unmap (frame->input_buffer, &minfo);
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if (status != VPX_CODEC_OK) {
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GST_WARNING_OBJECT (dec, "VPX preprocessing error: %s",
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gst_vpx_error_name (status));
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gst_video_decoder_drop_frame (GST_VIDEO_DECODER (dec), frame);
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return GST_FLOW_CUSTOM_SUCCESS_1;
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}
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if (!stream_info.is_kf) {
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GST_WARNING_OBJECT (dec, "No keyframe, skipping");
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gst_video_decoder_drop_frame (GST_VIDEO_DECODER (dec), frame);
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return GST_FLOW_CUSTOM_SUCCESS_1;
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}
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/* FIXME: peek_stream_info() does not return valid values, take input caps */
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stream_info.w = dec->input_state->info.width;
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stream_info.h = dec->input_state->info.height;
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cfg.w = stream_info.w;
|
|
cfg.h = stream_info.h;
|
|
cfg.threads = dec->threads;
|
|
|
|
caps = vpx_codec_get_caps (&vpx_codec_vp9_dx_algo);
|
|
|
|
if (dec->post_processing) {
|
|
if (!(caps & VPX_CODEC_CAP_POSTPROC)) {
|
|
GST_WARNING_OBJECT (dec, "Decoder does not support post processing");
|
|
} else {
|
|
flags |= VPX_CODEC_USE_POSTPROC;
|
|
}
|
|
}
|
|
|
|
status =
|
|
vpx_codec_dec_init (&dec->decoder, &vpx_codec_vp9_dx_algo, &cfg, flags);
|
|
if (status != VPX_CODEC_OK) {
|
|
GST_ELEMENT_ERROR (dec, LIBRARY, INIT,
|
|
("Failed to initialize VP9 decoder"), ("%s",
|
|
gst_vpx_error_name (status)));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
if ((caps & VPX_CODEC_CAP_POSTPROC) && dec->post_processing) {
|
|
vp8_postproc_cfg_t pp_cfg = { 0, };
|
|
|
|
pp_cfg.post_proc_flag = dec->post_processing_flags;
|
|
pp_cfg.deblocking_level = dec->deblocking_level;
|
|
pp_cfg.noise_level = dec->noise_level;
|
|
|
|
status = vpx_codec_control (&dec->decoder, VP8_SET_POSTPROC, &pp_cfg);
|
|
if (status != VPX_CODEC_OK) {
|
|
GST_WARNING_OBJECT (dec, "Couldn't set postprocessing settings: %s",
|
|
gst_vpx_error_name (status));
|
|
}
|
|
}
|
|
|
|
dec->decoder_inited = TRUE;
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_vp9_dec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
|
|
{
|
|
GstVP9Dec *dec;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
vpx_codec_err_t status;
|
|
vpx_codec_iter_t iter = NULL;
|
|
vpx_image_t *img;
|
|
long decoder_deadline = 0;
|
|
GstClockTimeDiff deadline;
|
|
GstMapInfo minfo;
|
|
|
|
GST_DEBUG_OBJECT (decoder, "handle_frame");
|
|
|
|
dec = GST_VP9_DEC (decoder);
|
|
|
|
if (!dec->decoder_inited) {
|
|
ret = open_codec (dec, frame);
|
|
if (ret == GST_FLOW_CUSTOM_SUCCESS_1)
|
|
return GST_FLOW_OK;
|
|
else if (ret != GST_FLOW_OK)
|
|
return ret;
|
|
}
|
|
|
|
deadline = gst_video_decoder_get_max_decode_time (decoder, frame);
|
|
if (deadline < 0) {
|
|
decoder_deadline = 1;
|
|
} else if (deadline == G_MAXINT64) {
|
|
decoder_deadline = 0;
|
|
} else {
|
|
decoder_deadline = MAX (1, deadline / GST_MSECOND);
|
|
}
|
|
|
|
if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
|
|
GST_ERROR_OBJECT (dec, "Failed to map input buffer");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
status = vpx_codec_decode (&dec->decoder,
|
|
minfo.data, minfo.size, NULL, decoder_deadline);
|
|
|
|
gst_buffer_unmap (frame->input_buffer, &minfo);
|
|
|
|
if (status) {
|
|
GST_VIDEO_DECODER_ERROR (decoder, 1, LIBRARY, ENCODE,
|
|
("Failed to decode frame"), ("%s", gst_vpx_error_name (status)), ret);
|
|
return ret;
|
|
}
|
|
|
|
img = vpx_codec_get_frame (&dec->decoder, &iter);
|
|
if (img) {
|
|
GstVideoFormat fmt;
|
|
|
|
switch (img->fmt) {
|
|
case VPX_IMG_FMT_I420:
|
|
fmt = GST_VIDEO_FORMAT_I420;
|
|
break;
|
|
case VPX_IMG_FMT_YV12:
|
|
fmt = GST_VIDEO_FORMAT_YV12;
|
|
break;
|
|
case VPX_IMG_FMT_I422:
|
|
fmt = GST_VIDEO_FORMAT_Y42B;
|
|
break;
|
|
case VPX_IMG_FMT_I444:
|
|
fmt = GST_VIDEO_FORMAT_Y444;
|
|
break;
|
|
default:
|
|
vpx_img_free (img);
|
|
GST_ELEMENT_ERROR (decoder, LIBRARY, ENCODE,
|
|
("Failed to decode frame"), ("Unsupported color format %d",
|
|
img->fmt));
|
|
return GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
|
|
if (!dec->output_state || dec->output_state->info.finfo->format != fmt ||
|
|
dec->output_state->info.width != img->d_w ||
|
|
dec->output_state->info.height != img->d_h) {
|
|
gboolean send_tags = !dec->output_state;
|
|
|
|
if (dec->output_state)
|
|
gst_video_codec_state_unref (dec->output_state);
|
|
|
|
dec->output_state =
|
|
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (dec),
|
|
fmt, img->d_w, img->d_h, dec->input_state);
|
|
gst_video_decoder_negotiate (GST_VIDEO_DECODER (dec));
|
|
|
|
if (send_tags)
|
|
gst_vp9_dec_send_tags (dec);
|
|
}
|
|
|
|
if (deadline < 0) {
|
|
GST_LOG_OBJECT (dec, "Skipping late frame (%f s past deadline)",
|
|
(double) -deadline / GST_SECOND);
|
|
gst_video_decoder_drop_frame (decoder, frame);
|
|
} else {
|
|
ret = gst_video_decoder_allocate_output_frame (decoder, frame);
|
|
|
|
if (ret == GST_FLOW_OK) {
|
|
gst_vp9_dec_image_to_buffer (dec, img, frame->output_buffer);
|
|
ret = gst_video_decoder_finish_frame (decoder, frame);
|
|
} else {
|
|
gst_video_decoder_drop_frame (decoder, frame);
|
|
}
|
|
}
|
|
|
|
vpx_img_free (img);
|
|
|
|
while ((img = vpx_codec_get_frame (&dec->decoder, &iter))) {
|
|
GST_WARNING_OBJECT (decoder, "Multiple decoded frames... dropping");
|
|
vpx_img_free (img);
|
|
}
|
|
} else {
|
|
/* Invisible frame */
|
|
GST_VIDEO_CODEC_FRAME_SET_DECODE_ONLY (frame);
|
|
gst_video_decoder_finish_frame (decoder, frame);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_vp9_dec_decide_allocation (GstVideoDecoder * bdec, GstQuery * query)
|
|
{
|
|
GstBufferPool *pool;
|
|
GstStructure *config;
|
|
|
|
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (bdec, query))
|
|
return FALSE;
|
|
|
|
g_assert (gst_query_get_n_allocation_pools (query) > 0);
|
|
gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL);
|
|
g_assert (pool != NULL);
|
|
|
|
config = gst_buffer_pool_get_config (pool);
|
|
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
|
|
gst_buffer_pool_config_add_option (config,
|
|
GST_BUFFER_POOL_OPTION_VIDEO_META);
|
|
}
|
|
gst_buffer_pool_set_config (pool, config);
|
|
gst_object_unref (pool);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
#endif /* HAVE_VP9_DECODER */
|