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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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plugins: Add a vaapidecodebin element
Add a "vaapidecodebin" element to vaapi plugins. Child Elements: "vaapidecode ! queue ! vaapipostproc" The Reasons for implementing a new bin element: -- Help to Autoplug Hardware Accelerated Video Postprocessing element in playbin with out any dependency to upstream gstreamer. This is to overcome the *unacceptable* delay in upstream gstreamer to get new features in. Eg: https://bugzilla.gnome.org/show_bug.cgi?id=687182. Also customers using older gstreamer versions (1.2 and 1.4) will get the benefit of autoplugging, hardware accelerated deinterlacing support etc. -- Help to maintain a single thread implementation in vaapidecode. This will result a dead-lock free vaapidecode in most of the cases. More details here: https://bugzilla.gnome.org/show_bug.cgi?id=742605 https://bugzilla.gnome.org/show_bug.cgi?id=745216
This commit is contained in:
Sreerenj Balachandran
parent
5425a05bd4
commit
8eabe9f377
4 changed files with 355 additions and 1 deletions
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@ -56,6 +56,7 @@ libgstvaapi_source_c = \
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gstvaapivideobuffer.c \
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gstvaapivideocontext.c \
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gstvaapivideometa.c \
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gstvaapidecodebin.c \
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$(NULL)
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libgstvaapi_source_h = \
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@ -68,6 +69,7 @@ libgstvaapi_source_h = \
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gstvaapivideobuffer.h \
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gstvaapivideocontext.h \
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gstvaapivideometa.h \
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gstvaapidecodebin.h \
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$(NULL)
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libgstvaapi_enc_source_c = \
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@ -189,7 +191,7 @@ libgstvaapi_la_LIBADD = \
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$(libgstvaapi_LIBS) \
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$(GST_LIBS) \
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$(GST_BASE_LIBS) \
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$(GST_VIDEO_LIBS) \
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$(GST_VIDEO_LIBS) -lgstpbutils-$(GST_PKG_VERSION) \
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$(GST_INTERFACES_LIBS) \
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$(GST_BASEVIDEO_LIBS) \
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$(GST_PLUGINS_BASE_LIBS) \
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@ -29,6 +29,7 @@
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#include "gstvaapidecode.h"
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#include "gstvaapipostproc.h"
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#include "gstvaapisink.h"
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#include "gstvaapidecodebin.h"
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#if USE_ENCODERS
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#include "gstvaapiencode_h264.h"
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@ -86,6 +87,9 @@ plugin_init (GstPlugin *plugin)
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GST_TYPE_VAAPIENCODE_VP8);
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#endif
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gst_element_register(plugin, "vaapidecodebin",
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GST_RANK_PRIMARY + 2,
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GST_TYPE_VAAPI_DECODE_BIN);
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return TRUE;
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}
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284
gst/vaapi/gstvaapidecodebin.c
Normal file
284
gst/vaapi/gstvaapidecodebin.c
Normal file
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@ -0,0 +1,284 @@
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/*
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* gstvaapidecodebin.c
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*
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* Copyright (C) 2015 Intel Corporation
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* Author: Sreerenj Balachandran <sreerenj.balachandran@intel.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 Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#include "gst/vaapi/sysdeps.h"
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#include <stdio.h>
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#include <string.h>
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#include <gst/gst.h>
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#include <gst/pbutils/pbutils.h>
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#include "gstvaapipluginutil.h"
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#include "gstvaapidecodebin.h"
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#define GST_PLUGIN_NAME "vaapidecodebin"
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#define GST_PLUGIN_DESC "A Bin of VA-API elements: vaapidecode ! queue ! vaapipostproc"
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GST_DEBUG_CATEGORY_STATIC (gst_debug_vaapi_decode_bin);
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#define GST_CAT_DEFAULT gst_debug_vaapi_decode_bin
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#define DEFAULT_QUEUE_MAX_SIZE_BUFFERS 0
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#define DEFAULT_QUEUE_MAX_SIZE_BYTES 0
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#define DEFAULT_QUEUE_MAX_SIZE_TIME 0
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enum
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{
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PROP_0,
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PROP_MAX_SIZE_BUFFERS,
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PROP_MAX_SIZE_BYTES,
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PROP_MAX_SIZE_TIME
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};
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#if GST_CHECK_VERSION(1,1,0)
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#define GST_VAAPI_DECODE_BIN_SURFACE_CAPS \
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GST_VIDEO_CAPS_MAKE_WITH_FEATURES( \
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GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE, "{ ENCODED, I420, YV12, NV12 }")
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#else
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#define GST_VAAPI_DECODE_BIN_SURFACE_CAPS \
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GST_VAAPI_SURFACE_CAPS
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#endif
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/* Default templates */
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#define GST_CAPS_CODEC(CODEC) CODEC "; "
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/* *INDENT-OFF* */
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static const char gst_vaapi_decode_bin_sink_caps_str[] =
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GST_CAPS_CODEC("video/mpeg, mpegversion=2, systemstream=(boolean)false")
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GST_CAPS_CODEC("video/mpeg, mpegversion=4")
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GST_CAPS_CODEC("video/x-divx")
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GST_CAPS_CODEC("video/x-xvid")
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GST_CAPS_CODEC("video/x-h263")
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GST_CAPS_CODEC("video/x-h264")
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GST_CAPS_CODEC("video/x-wmv")
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GST_CAPS_CODEC("video/x-vp8")
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GST_CAPS_CODEC("image/jpeg")
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;
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/* *INDENT-ON* */
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/* *INDENT-OFF* */
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static const char gst_vaapi_decode_bin_src_caps_str[] =
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GST_VAAPI_DECODE_BIN_SURFACE_CAPS ", "
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GST_CAPS_INTERLACED_FALSE "; "
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#if GST_CHECK_VERSION(1,1,0)
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GST_VIDEO_CAPS_MAKE_WITH_FEATURES (
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GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META, "{ RGBA, BGRA }") ", "
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GST_CAPS_INTERLACED_FALSE "; "
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#endif
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#if GST_CHECK_VERSION(1,0,0)
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GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL) ", "
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#endif
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GST_CAPS_INTERLACED_FALSE;
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/* *INDENT-ON* */
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static GstStaticPadTemplate gst_vaapi_decode_bin_sink_factory =
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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 (gst_vaapi_decode_bin_sink_caps_str));
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static GstStaticPadTemplate gst_vaapi_decode_bin_src_factory =
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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_vaapi_decode_bin_src_caps_str));
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G_DEFINE_TYPE (GstVaapiDecodeBin, gst_vaapi_decode_bin, GST_TYPE_BIN);
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static void
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gst_vaapi_decode_bin_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec)
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{
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GstVaapiDecodeBin *vaapidecbin = GST_VAAPI_DECODE_BIN (object);
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switch (prop_id) {
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case PROP_MAX_SIZE_BYTES:
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vaapidecbin->max_size_bytes = g_value_get_uint (value);
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g_object_set (G_OBJECT (vaapidecbin->queue), "max-size-bytes",
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vaapidecbin->max_size_bytes, NULL);
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break;
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case PROP_MAX_SIZE_BUFFERS:
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vaapidecbin->max_size_buffers = g_value_get_uint (value);
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g_object_set (G_OBJECT (vaapidecbin->queue), "max-size-buffers",
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vaapidecbin->max_size_buffers, NULL);
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break;
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case PROP_MAX_SIZE_TIME:
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vaapidecbin->max_size_time = g_value_get_uint64 (value);
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g_object_set (G_OBJECT (vaapidecbin->queue), "max-size-time",
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vaapidecbin->max_size_time, NULL);
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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_vaapi_decode_bin_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec)
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{
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GstVaapiDecodeBin *vaapidecbin = GST_VAAPI_DECODE_BIN (object);
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switch (prop_id) {
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case PROP_MAX_SIZE_BYTES:
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g_value_set_uint (value, vaapidecbin->max_size_bytes);
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break;
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case PROP_MAX_SIZE_BUFFERS:
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g_value_set_uint (value, vaapidecbin->max_size_buffers);
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break;
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case PROP_MAX_SIZE_TIME:
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g_value_set_uint64 (value, vaapidecbin->max_size_time);
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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_vaapi_decode_bin_class_init (GstVaapiDecodeBinClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *element_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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gobject_class->set_property = gst_vaapi_decode_bin_set_property;
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gobject_class->get_property = gst_vaapi_decode_bin_get_property;
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gst_element_class_set_static_metadata (element_class,
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"VA-API Decode Bin",
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"Codec/Decoder/Video",
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GST_PLUGIN_DESC,
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"Sreerenj Balachandran <sreerenj.balachandran@intel.com>");
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g_object_class_install_property (gobject_class, PROP_MAX_SIZE_BYTES,
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g_param_spec_uint ("max-size-bytes", "Max. size (kB)",
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"Max. amount of data in the queue (bytes, 0=disable)",
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0, G_MAXUINT, DEFAULT_QUEUE_MAX_SIZE_BYTES,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_MAX_SIZE_BUFFERS,
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g_param_spec_uint ("max-size-buffers", "Max. size (buffers)",
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"Max. number of buffers in the queue (0=disable)", 0, G_MAXUINT,
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DEFAULT_QUEUE_MAX_SIZE_BUFFERS,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_MAX_SIZE_TIME,
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g_param_spec_uint64 ("max-size-time", "Max. size (ns)",
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"Max. amount of data in the queue (in ns, 0=disable)", 0, G_MAXUINT64,
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DEFAULT_QUEUE_MAX_SIZE_TIME,
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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_vaapi_decode_bin_sink_factory));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_vaapi_decode_bin_src_factory));
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GST_DEBUG_CATEGORY_INIT (gst_debug_vaapi_decode_bin,
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GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
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}
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static gboolean
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gst_vaapi_decode_bin_configure (GstVaapiDecodeBin * vaapidecbin)
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{
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gchar *missing_factory = NULL;
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/* create the decoder */
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vaapidecbin->decoder =
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gst_element_factory_make ("vaapidecode", "vaapidecode");
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if (!vaapidecbin->decoder) {
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missing_factory = "vaapidecode";
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goto error_element_missing;
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}
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/* create the queue */
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vaapidecbin->queue = gst_element_factory_make ("queue", "queue");
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if (!vaapidecbin->queue) {
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missing_factory = "queue";
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goto error_element_missing;
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}
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/* create the postproc */
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vaapidecbin->postproc =
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gst_element_factory_make ("vaapipostproc", "vaapipostproc");
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if (!vaapidecbin->postproc) {
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missing_factory = "vaapipostproc";
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goto error_element_missing;
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}
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g_object_set (G_OBJECT (vaapidecbin->queue),
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"max-size-bytes", vaapidecbin->max_size_bytes,
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"max-size-buffers", vaapidecbin->max_size_buffers,
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"max-size-time", vaapidecbin->max_size_time, NULL);
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gst_bin_add_many (GST_BIN (vaapidecbin),
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vaapidecbin->decoder, vaapidecbin->queue, vaapidecbin->postproc, NULL);
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if (!gst_element_link_pads_full (vaapidecbin->decoder, "src",
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vaapidecbin->queue, "sink", GST_PAD_LINK_CHECK_NOTHING))
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goto error_link_pad;
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if (!gst_element_link_pads_full (vaapidecbin->queue, "src",
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vaapidecbin->postproc, "sink", GST_PAD_LINK_CHECK_NOTHING))
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goto error_link_pad;
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return TRUE;
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error_element_missing:
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{
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GstMessage *msg;
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GST_ERROR_OBJECT (vaapidecbin, "Failed to create %s element",
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missing_factory);
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msg =
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gst_missing_element_message_new (GST_ELEMENT_CAST (vaapidecbin),
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missing_factory);
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gst_element_post_message (GST_ELEMENT_CAST (vaapidecbin), msg);
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return FALSE;
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}
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error_link_pad:
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{
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GST_ERROR_OBJECT (vaapidecbin, "Failed to link the child elements");
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return FALSE;
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}
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}
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static void
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gst_vaapi_decode_bin_init (GstVaapiDecodeBin * vaapidecbin)
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{
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GstPad *element_pad, *ghost_pad;
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if (!gst_vaapi_decode_bin_configure (vaapidecbin))
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return;
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/* create ghost pad sink */
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element_pad =
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gst_element_get_static_pad (GST_ELEMENT (vaapidecbin->decoder), "sink");
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ghost_pad =
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gst_ghost_pad_new_from_template ("sink", element_pad,
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GST_PAD_PAD_TEMPLATE (element_pad));
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gst_object_unref (element_pad);
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gst_element_add_pad (GST_ELEMENT (vaapidecbin), ghost_pad);
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/* create ghost pad src */
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element_pad =
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gst_element_get_static_pad (GST_ELEMENT (vaapidecbin->postproc), "src");
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ghost_pad =
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gst_ghost_pad_new_from_template ("src", element_pad,
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GST_PAD_PAD_TEMPLATE (element_pad));
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gst_object_unref (element_pad);
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gst_element_add_pad (GST_ELEMENT (vaapidecbin), ghost_pad);
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}
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64
gst/vaapi/gstvaapidecodebin.h
Normal file
64
gst/vaapi/gstvaapidecodebin.h
Normal file
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@ -0,0 +1,64 @@
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/*
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* gstvaapidecodebin.h
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*
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* Copyright (C) 2015 Intel Corporation
|
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* Author: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
|
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*
|
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* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public License
|
||||
* as published by the Free Software Foundation; either version 2.1
|
||||
* of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library; if not, write to the Free
|
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
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* Boston, MA 02110-1301 USA
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*/
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#ifndef __GST_VAAPI_DECODE_BIN_H__
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#define __GST_VAAPI_DECODE_BIN_H__
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G_BEGIN_DECLS
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#define GST_TYPE_VAAPI_DECODE_BIN (gst_vaapi_decode_bin_get_type ())
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#define GST_VAAPI_DECODE_BIN(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VAAPI_DECODE_BIN, GstVaapiDecodeBin))
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#define GST_VAAPI_DECODE_BIN_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_VAAPI_DECODE_BIN, GstVaapiDecodeBinClass))
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#define GST_IS_AUTO_DETECT(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VAAPI_DECODE_BIN))
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#define GST_IS_AUTO_DETECT_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VAAPI_DECODE_BIN))
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#define GST_VAAPI_DECODE_BIN_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VAAPI_DECODE_BIN, GstVaapiDecodeBinClass))
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typedef struct _GstVaapiDecodeBin {
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/* < private > */
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GstBin parent;
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GstElement *decoder;
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GstElement *queue;
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GstElement *postproc;
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/* properties */
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guint max_size_buffers;
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guint max_size_bytes;
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guint64 max_size_time;
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} GstVaapiDecodeBin;
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typedef struct _GstVaapiDecodeBinClass {
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GstBinClass parent_class;
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} GstVaapiDecodeBinClass;
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GType gst_vaapi_decode_bin_get_type (void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_VAAPI_DECODE_BIN_H__ */
|
||||
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Reference in a new issue