gstreamer/gst/vaapi/gstvaapidecodebin.c

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/*
* gstvaapidecodebin.c
*
* Copyright (C) 2015 Intel Corporation
* Author: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
*
* 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
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include "gstcompat.h"
#include <stdio.h>
#include <string.h>
#include <gst/gst.h>
#include <gst/pbutils/pbutils.h>
#include "gstvaapipluginutil.h"
#include "gstvaapidecodebin.h"
#include "gstvaapivideocontext.h"
#define GST_PLUGIN_NAME "vaapidecodebin"
#define GST_PLUGIN_DESC "A Bin of VA-API elements: vaapidecode ! queue ! vaapipostproc"
GST_DEBUG_CATEGORY_STATIC (gst_debug_vaapi_decode_bin);
#define GST_CAT_DEFAULT gst_debug_vaapi_decode_bin
#define DEFAULT_QUEUE_MAX_SIZE_BUFFERS 0
#define DEFAULT_QUEUE_MAX_SIZE_BYTES 0
#define DEFAULT_QUEUE_MAX_SIZE_TIME 0
#define DEFAULT_DEINTERLACE_METHOD GST_VAAPI_DEINTERLACE_METHOD_BOB
enum
{
PROP_0,
PROP_MAX_SIZE_BUFFERS,
PROP_MAX_SIZE_BYTES,
PROP_MAX_SIZE_TIME,
PROP_DEINTERLACE_METHOD,
PROP_DISABLE_VPP,
PROP_LAST
};
static GParamSpec *properties[PROP_LAST];
#define GST_VAAPI_DECODE_BIN_SURFACE_CAPS \
GST_VIDEO_CAPS_MAKE_WITH_FEATURES( \
GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE, "{ ENCODED, I420, YV12, NV12 }")
/* Default templates */
#define GST_CAPS_CODEC(CODEC) CODEC "; "
/* *INDENT-OFF* */
static const char gst_vaapi_decode_bin_sink_caps_str[] =
GST_CAPS_CODEC("video/mpeg, mpegversion=2, systemstream=(boolean)false")
GST_CAPS_CODEC("video/mpeg, mpegversion=4")
GST_CAPS_CODEC("video/x-divx")
GST_CAPS_CODEC("video/x-xvid")
GST_CAPS_CODEC("video/x-h263")
GST_CAPS_CODEC("video/x-h264")
#if USE_HEVC_DECODER
GST_CAPS_CODEC("video/x-h265")
#endif
GST_CAPS_CODEC("video/x-wmv")
#if USE_VP8_DECODER
GST_CAPS_CODEC("video/x-vp8")
#endif
#if USE_JPEG_DECODER
GST_CAPS_CODEC("image/jpeg")
#endif
;
/* *INDENT-ON* */
/* *INDENT-OFF* */
static const char gst_vaapi_decode_bin_src_caps_str[] =
GST_VAAPI_DECODE_BIN_SURFACE_CAPS ", "
GST_CAPS_INTERLACED_FALSE "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES (
GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META, "{ RGBA, BGRA }") ", "
GST_CAPS_INTERLACED_FALSE "; "
GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL) ", "
GST_CAPS_INTERLACED_FALSE;
/* *INDENT-ON* */
static GstStaticPadTemplate gst_vaapi_decode_bin_sink_factory =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (gst_vaapi_decode_bin_sink_caps_str));
static GstStaticPadTemplate gst_vaapi_decode_bin_src_factory =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (gst_vaapi_decode_bin_src_caps_str));
G_DEFINE_TYPE (GstVaapiDecodeBin, gst_vaapi_decode_bin, GST_TYPE_BIN);
static void
post_missing_element_message (GstVaapiDecodeBin * vaapidecbin,
const gchar * missing_factory)
{
GstMessage *msg;
GST_ERROR_OBJECT (vaapidecbin, "Failed to create %s element",
missing_factory);
msg =
gst_missing_element_message_new (GST_ELEMENT_CAST (vaapidecbin),
missing_factory);
gst_element_post_message (GST_ELEMENT_CAST (vaapidecbin), msg);
}
static gboolean
activate_vpp (GstVaapiDecodeBin * vaapidecbin)
{
GstElement *src;
if (vaapidecbin->ghost_pad_src || vaapidecbin->postproc)
return TRUE;
if (!vaapidecbin->has_vpp || vaapidecbin->disable_vpp) {
src = vaapidecbin->queue;
goto connect_src_ghost_pad;
}
/* create the postproc */
vaapidecbin->postproc =
gst_element_factory_make ("vaapipostproc", "vaapipostproc");
if (!vaapidecbin->postproc)
goto error_element_missing;
g_object_set (G_OBJECT (vaapidecbin->postproc), "deinterlace-method",
vaapidecbin->deinterlace_method, NULL);
gst_bin_add (GST_BIN (vaapidecbin), vaapidecbin->postproc);
if (!gst_element_link_pads_full (vaapidecbin->queue, "src",
vaapidecbin->postproc, "sink", GST_PAD_LINK_CHECK_NOTHING))
goto error_link_pad;
GST_DEBUG_OBJECT (vaapidecbin, "Enabling VPP");
src = vaapidecbin->postproc;
goto connect_src_ghost_pad;
error_element_missing:
{
post_missing_element_message (vaapidecbin, "vaapipostproc");
return FALSE;
}
error_link_pad:
{
GST_ERROR_OBJECT (vaapidecbin, "Failed to link the child elements");
return FALSE;
}
connect_src_ghost_pad:
{
GstPad *srcpad, *ghostpad;
srcpad = gst_element_get_static_pad (src, "src");
ghostpad = gst_ghost_pad_new ("src", srcpad);
vaapidecbin->ghost_pad_src = ghostpad;
gst_object_unref (srcpad);
gst_element_add_pad (GST_ELEMENT (vaapidecbin), ghostpad);
return TRUE;
}
}
static void
gst_vaapi_decode_bin_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstVaapiDecodeBin *vaapidecbin = GST_VAAPI_DECODE_BIN (object);
switch (prop_id) {
case PROP_MAX_SIZE_BYTES:
vaapidecbin->max_size_bytes = g_value_get_uint (value);
g_object_set (G_OBJECT (vaapidecbin->queue), "max-size-bytes",
vaapidecbin->max_size_bytes, NULL);
break;
case PROP_MAX_SIZE_BUFFERS:
vaapidecbin->max_size_buffers = g_value_get_uint (value);
g_object_set (G_OBJECT (vaapidecbin->queue), "max-size-buffers",
vaapidecbin->max_size_buffers, NULL);
break;
case PROP_MAX_SIZE_TIME:
vaapidecbin->max_size_time = g_value_get_uint64 (value);
g_object_set (G_OBJECT (vaapidecbin->queue), "max-size-time",
vaapidecbin->max_size_time, NULL);
break;
case PROP_DEINTERLACE_METHOD:
vaapidecbin->deinterlace_method = g_value_get_enum (value);
g_object_set (G_OBJECT (vaapidecbin->postproc), "deinterlace-method",
vaapidecbin->deinterlace_method, NULL);
break;
case PROP_DISABLE_VPP:
{
gboolean disable_vpp;
disable_vpp = g_value_get_boolean (value);
if (!disable_vpp && !vaapidecbin->has_vpp)
GST_WARNING_OBJECT (vaapidecbin,
"Cannot enable VPP since the VA driver does not support it");
else
vaapidecbin->disable_vpp = disable_vpp;
/* @TODO: Add run-time disabling support */
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vaapi_decode_bin_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
GstVaapiDecodeBin *vaapidecbin = GST_VAAPI_DECODE_BIN (object);
switch (prop_id) {
case PROP_MAX_SIZE_BYTES:
g_value_set_uint (value, vaapidecbin->max_size_bytes);
break;
case PROP_MAX_SIZE_BUFFERS:
g_value_set_uint (value, vaapidecbin->max_size_buffers);
break;
case PROP_MAX_SIZE_TIME:
g_value_set_uint64 (value, vaapidecbin->max_size_time);
break;
case PROP_DEINTERLACE_METHOD:
g_value_set_enum (value, vaapidecbin->deinterlace_method);
break;
case PROP_DISABLE_VPP:
g_value_set_boolean (value, vaapidecbin->disable_vpp);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vaapi_decode_bin_handle_message (GstBin * bin, GstMessage * message)
{
GstVaapiDecodeBin *vaapidecbin = GST_VAAPI_DECODE_BIN (bin);
GstMessageType type;
GstContext *context = NULL;
const gchar *context_type;
GstVaapiDisplay *display = NULL;
type = GST_MESSAGE_TYPE (message);
if (type != GST_MESSAGE_HAVE_CONTEXT)
goto bail;
gst_message_parse_have_context (message, &context);
if (!context)
goto bail;
context_type = gst_context_get_context_type (context);
if (g_strcmp0 (context_type, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME) != 0)
goto bail;
if (!gst_vaapi_video_context_get_display (context, &display))
goto bail;
vaapidecbin->has_vpp = gst_vaapi_display_has_video_processing (display);
/* the underlying VA driver implementation doesn't support video
* post-processing, hence we have to disable it */
if (!vaapidecbin->has_vpp) {
GST_WARNING_OBJECT (vaapidecbin, "VA driver doesn't support VPP");
if (!vaapidecbin->disable_vpp) {
vaapidecbin->disable_vpp = TRUE;
g_object_notify_by_pspec (G_OBJECT (vaapidecbin),
properties[PROP_DISABLE_VPP]);
}
}
activate_vpp (vaapidecbin);
bail:
GST_BIN_CLASS (gst_vaapi_decode_bin_parent_class)->handle_message (bin,
message);
}
static void
gst_vaapi_decode_bin_class_init (GstVaapiDecodeBinClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstBinClass *bin_class;
gobject_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
bin_class = GST_BIN_CLASS (klass);
gobject_class->set_property = gst_vaapi_decode_bin_set_property;
gobject_class->get_property = gst_vaapi_decode_bin_get_property;
bin_class->handle_message =
GST_DEBUG_FUNCPTR (gst_vaapi_decode_bin_handle_message);
gst_element_class_set_static_metadata (element_class,
"VA-API Decode Bin",
"Codec/Decoder/Video",
GST_PLUGIN_DESC,
"Sreerenj Balachandran <sreerenj.balachandran@intel.com>");
properties[PROP_MAX_SIZE_BYTES] = g_param_spec_uint ("max-size-bytes",
"Max. size (kB)", "Max. amount of data in the queue (bytes, 0=disable)",
0, G_MAXUINT, DEFAULT_QUEUE_MAX_SIZE_BYTES,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
properties[PROP_MAX_SIZE_BUFFERS] = g_param_spec_uint ("max-size-buffers",
"Max. size (buffers)", "Max. number of buffers in the queue (0=disable)",
0, G_MAXUINT, DEFAULT_QUEUE_MAX_SIZE_BUFFERS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
properties[PROP_MAX_SIZE_TIME] = g_param_spec_uint64 ("max-size-time",
"Max. size (ns)", "Max. amount of data in the queue (in ns, 0=disable)",
0, G_MAXUINT64, DEFAULT_QUEUE_MAX_SIZE_TIME,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
properties[PROP_DEINTERLACE_METHOD] = g_param_spec_enum ("deinterlace-method",
"Deinterlace method", "Deinterlace method to use",
GST_VAAPI_TYPE_DEINTERLACE_METHOD, DEFAULT_DEINTERLACE_METHOD,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
properties[PROP_DISABLE_VPP] = g_param_spec_boolean ("disable-vpp",
"Disable VPP",
"Disable Video Post Processing (No support for run time disabling)",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (gobject_class, PROP_LAST, properties);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_vaapi_decode_bin_sink_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_vaapi_decode_bin_src_factory));
GST_DEBUG_CATEGORY_INIT (gst_debug_vaapi_decode_bin,
GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
}
static gboolean
gst_vaapi_decode_bin_configure (GstVaapiDecodeBin * vaapidecbin)
{
gchar *missing_factory = NULL;
/* create the decoder */
vaapidecbin->decoder =
gst_element_factory_make ("vaapidecode", "vaapidecode");
if (!vaapidecbin->decoder) {
missing_factory = "vaapidecode";
goto error_element_missing;
}
/* create the queue */
vaapidecbin->queue = gst_element_factory_make ("queue", "queue");
if (!vaapidecbin->queue) {
missing_factory = "queue";
goto error_element_missing;
}
g_object_set (G_OBJECT (vaapidecbin->queue),
"max-size-bytes", vaapidecbin->max_size_bytes,
"max-size-buffers", vaapidecbin->max_size_buffers,
"max-size-time", vaapidecbin->max_size_time, NULL);
gst_bin_add_many (GST_BIN (vaapidecbin),
vaapidecbin->decoder, vaapidecbin->queue, NULL);
if (!gst_element_link_pads_full (vaapidecbin->decoder, "src",
vaapidecbin->queue, "sink", GST_PAD_LINK_CHECK_NOTHING))
goto error_link_pad;
return TRUE;
error_element_missing:
{
post_missing_element_message (vaapidecbin, missing_factory);
return FALSE;
}
error_link_pad:
{
GST_ERROR_OBJECT (vaapidecbin, "Failed to link the child elements");
return FALSE;
}
}
static void
gst_vaapi_decode_bin_init (GstVaapiDecodeBin * vaapidecbin)
{
GstPad *element_pad, *ghost_pad;
/* let's assume we have VPP until we prove the opposite */
vaapidecbin->has_vpp = TRUE;
if (!gst_vaapi_decode_bin_configure (vaapidecbin))
return;
/* create ghost pad sink */
element_pad =
gst_element_get_static_pad (GST_ELEMENT (vaapidecbin->decoder), "sink");
ghost_pad =
gst_ghost_pad_new_from_template ("sink", element_pad,
GST_PAD_PAD_TEMPLATE (element_pad));
gst_object_unref (element_pad);
gst_element_add_pad (GST_ELEMENT (vaapidecbin), ghost_pad);
}