gstreamer/gst/debugutils/gstvideocodectestsink.c

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/* GStreamer
* Copyright (C) 2021 Collabora Ltd.
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gio/gio.h>
#include "gstdebugutilsbadelements.h"
#include "gstvideocodectestsink.h"
/**
* SECTION:videocodectestsink
*
* An element that computes the checksum of a video stream and/or writes back its
* raw I420 data ignoring the padding introduced by GStreamer. This element is
* meant to be used for CODEC conformance testing. It also supports producing an I420
* checksum and and can write out a file in I420 layout directly from NV12 input
* data.
*
* The checksum is communicated back to the application just before EOS
* message with an element message of type `conformance/checksum` with the
* following fields:
*
* * "checksum-type" G_TYPE_STRING The checksum type (only MD5 is supported)
* * "checksum" G_TYPE_STRING The checksum as a string
*
* ## Example launch lines
* |[
* gst-launch-1.0 videotestsrc num-buffers=2 ! videocodectestsink location=true-raw.yuv -m
* ]|
*
* Since: 1.20
*/
enum
{
PROP_0,
PROP_LOCATION,
};
struct _GstVideoCodecTestSink
{
GstBaseSink parent;
GChecksumType hash;
/* protect with stream lock */
GstVideoInfo vinfo;
GstFlowReturn (*process) (GstVideoCodecTestSink * self,
GstVideoFrame * frame);
GOutputStream *ostream;
GChecksum *checksum;
/* protect with object lock */
gchar *location;
};
static GstStaticPadTemplate gst_video_codec_test_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw, format = { I420, I420_10LE, NV12 }"));
#define gst_video_codec_test_sink_parent_class parent_class
G_DEFINE_TYPE (GstVideoCodecTestSink, gst_video_codec_test_sink,
GST_TYPE_BASE_SINK);
GST_ELEMENT_REGISTER_DEFINE (videocodectestsink, "videocodectestsink",
GST_RANK_NONE, gst_video_codec_test_sink_get_type ());
static void
gst_video_codec_test_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVideoCodecTestSink *self = GST_VIDEO_CODEC_TEST_SINK (object);
GST_OBJECT_LOCK (self);
switch (prop_id) {
case PROP_LOCATION:
g_free (self->location);
self->location = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (self);
}
static void
gst_video_codec_test_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstVideoCodecTestSink *self = GST_VIDEO_CODEC_TEST_SINK (object);
GST_OBJECT_LOCK (self);
switch (prop_id) {
case PROP_LOCATION:
g_value_set_string (value, self->location);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (self);
}
static gboolean
gst_video_codec_test_sink_start (GstBaseSink * sink)
{
GstVideoCodecTestSink *self = GST_VIDEO_CODEC_TEST_SINK (sink);
GError *error = NULL;
GFile *file = NULL;
gboolean ret = TRUE;
GST_OBJECT_LOCK (self);
self->checksum = g_checksum_new (self->hash);
if (self->location)
file = g_file_new_for_path (self->location);
GST_OBJECT_UNLOCK (self);
if (file) {
self->ostream = G_OUTPUT_STREAM (g_file_replace (file, NULL, FALSE,
G_FILE_CREATE_REPLACE_DESTINATION, NULL, &error));
if (!self->ostream) {
GST_ELEMENT_ERROR (self, RESOURCE, WRITE,
("Failed to open '%s' for writing.", self->location),
("Open failed failed: %s", error->message));
g_error_free (error);
ret = FALSE;
}
g_object_unref (file);
}
return ret;
}
static gboolean
gst_video_codec_test_sink_stop (GstBaseSink * sink)
{
GstVideoCodecTestSink *self = GST_VIDEO_CODEC_TEST_SINK (sink);
g_checksum_free (self->checksum);
self->checksum = NULL;
if (self->ostream) {
GError *error = NULL;
if (!g_output_stream_close (self->ostream, NULL, &error)) {
GST_ELEMENT_WARNING (self, RESOURCE, CLOSE,
("Did not close '%s' properly", self->location),
("Failed to close stream: %s", error->message));
}
g_clear_object (&self->ostream);
}
return TRUE;
}
static GstFlowReturn
gst_video_codec_test_sink_process_data (GstVideoCodecTestSink * self,
const guchar * data, gssize length)
{
GError *error = NULL;
g_checksum_update (self->checksum, data, length);
if (!self->ostream)
return GST_FLOW_OK;
if (!g_output_stream_write_all (self->ostream, data, length, NULL, NULL,
&error)) {
GST_ELEMENT_ERROR (self, RESOURCE, WRITE,
("Failed to write video data into '%s'", self->location),
("Writing %" G_GSIZE_FORMAT " bytes failed: %s", length,
error->message));
g_error_free (error);
return GST_FLOW_ERROR;
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_video_codec_test_sink_process_i420 (GstVideoCodecTestSink * self,
GstVideoFrame * frame)
{
guint plane;
for (plane = 0; plane < 3; plane++) {
gint y;
guint stride;
const guchar *data;
stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, plane);
data = GST_VIDEO_FRAME_PLANE_DATA (frame, plane);
for (y = 0; y < GST_VIDEO_INFO_COMP_HEIGHT (&self->vinfo, plane); y++) {
gsize length = GST_VIDEO_INFO_COMP_WIDTH (&self->vinfo, plane) *
GST_VIDEO_INFO_COMP_PSTRIDE (&self->vinfo, plane);
GstFlowReturn ret;
ret = gst_video_codec_test_sink_process_data (self, data, length);
if (ret != GST_FLOW_OK)
return ret;
data += stride;
}
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_video_codec_test_sink_process_nv12 (GstVideoCodecTestSink * self,
GstVideoFrame * frame)
{
gint x, y, comp;
guint stride;
const guchar *data;
stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
for (y = 0; y < GST_VIDEO_INFO_HEIGHT (&self->vinfo); y++) {
gsize length = GST_VIDEO_INFO_WIDTH (&self->vinfo);
GstFlowReturn ret;
ret = gst_video_codec_test_sink_process_data (self, data, length);
if (ret != GST_FLOW_OK)
return ret;
data += stride;
}
/* Deinterleave the UV plane */
stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 1);
for (comp = 0; comp < 2; comp++) {
data = GST_VIDEO_FRAME_PLANE_DATA (frame, 1);
for (y = 0; y < GST_VIDEO_INFO_COMP_HEIGHT (&self->vinfo, 1); y++) {
guint width = GST_ROUND_UP_2 (GST_VIDEO_INFO_WIDTH (&self->vinfo)) / 2;
for (x = 0; x < width; x++) {
GstFlowReturn ret;
ret = gst_video_codec_test_sink_process_data (self,
data + 2 * x + comp, 1);
if (ret != GST_FLOW_OK)
return ret;
}
data += stride;
}
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_video_codec_test_sink_render (GstBaseSink * sink, GstBuffer * buffer)
{
GstVideoCodecTestSink *self = GST_VIDEO_CODEC_TEST_SINK (sink);
GstVideoFrame frame;
if (!gst_video_frame_map (&frame, &self->vinfo, buffer, GST_MAP_READ))
return GST_FLOW_ERROR;
self->process (self, &frame);
gst_video_frame_unmap (&frame);
return GST_FLOW_OK;
}
static gboolean
gst_video_codec_test_sink_set_caps (GstBaseSink * sink, GstCaps * caps)
{
GstVideoCodecTestSink *self = GST_VIDEO_CODEC_TEST_SINK (sink);
if (!gst_video_info_from_caps (&self->vinfo, caps))
return FALSE;
switch (GST_VIDEO_INFO_FORMAT (&self->vinfo)) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_I420_10LE:
self->process = gst_video_codec_test_sink_process_i420;
break;
case GST_VIDEO_FORMAT_NV12:
self->process = gst_video_codec_test_sink_process_nv12;
break;
default:
g_assert_not_reached ();
break;
}
return TRUE;
}
static gboolean
gst_video_codec_test_sink_propose_allocation (GstBaseSink * sink,
GstQuery * query)
{
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
return TRUE;
}
static gboolean
gst_video_codec_test_sink_event (GstBaseSink * sink, GstEvent * event)
{
GstVideoCodecTestSink *self = GST_VIDEO_CODEC_TEST_SINK (sink);
if (event->type == GST_EVENT_EOS) {
const gchar *checksum_type = "UNKNOWN";
switch (self->hash) {
case G_CHECKSUM_MD5:
checksum_type = "MD5";
break;
case G_CHECKSUM_SHA1:
checksum_type = "SHA1";
break;
case G_CHECKSUM_SHA256:
checksum_type = "SHA256";
break;
case G_CHECKSUM_SHA512:
checksum_type = "SHA512";
break;
case G_CHECKSUM_SHA384:
checksum_type = "SHA384";
break;
default:
g_assert_not_reached ();
break;
}
gst_element_post_message (GST_ELEMENT (self),
gst_message_new_element (GST_OBJECT (self),
gst_structure_new ("conformance/checksum", "checksum-type",
G_TYPE_STRING, checksum_type, "checksum", G_TYPE_STRING,
g_checksum_get_string (self->checksum), NULL)));
g_checksum_reset (self->checksum);
}
return GST_BASE_SINK_CLASS (parent_class)->event (sink, event);
}
static void
gst_video_codec_test_sink_init (GstVideoCodecTestSink * sink)
{
gst_base_sink_set_sync (GST_BASE_SINK (sink), FALSE);
sink->hash = G_CHECKSUM_MD5;
}
static void
gst_video_codec_test_sink_finalize (GObject * object)
{
GstVideoCodecTestSink *self = GST_VIDEO_CODEC_TEST_SINK (object);
g_free (self->location);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_video_codec_test_sink_class_init (GstVideoCodecTestSinkClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseSinkClass *base_sink_class = GST_BASE_SINK_CLASS (klass);
gobject_class->set_property = gst_video_codec_test_sink_set_property;
gobject_class->get_property = gst_video_codec_test_sink_get_property;
gobject_class->finalize = gst_video_codec_test_sink_finalize;
base_sink_class->start = GST_DEBUG_FUNCPTR (gst_video_codec_test_sink_start);
base_sink_class->stop = GST_DEBUG_FUNCPTR (gst_video_codec_test_sink_stop);
base_sink_class->render =
GST_DEBUG_FUNCPTR (gst_video_codec_test_sink_render);
base_sink_class->set_caps =
GST_DEBUG_FUNCPTR (gst_video_codec_test_sink_set_caps);
base_sink_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_video_codec_test_sink_propose_allocation);
base_sink_class->event = GST_DEBUG_FUNCPTR (gst_video_codec_test_sink_event);
gst_element_class_add_static_pad_template (element_class,
&gst_video_codec_test_sink_template);
g_object_class_install_property (gobject_class, PROP_LOCATION,
g_param_spec_string ("location", "Location",
"File path to store non-padded I420 stream (optional).", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_static_metadata (element_class,
"Video CODEC Test Sink", "Debug/video/Sink",
"Sink to test video CODEC conformance",
"Nicolas Dufresne <nicolas.dufresne@collabora.com");
}