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gstreamer/subprojects/gst-plugins-bad/tests/examples/va/vaenc-dynamic-reconfigure.c

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/* GStreamer
* Copyright (C) 2022 Seungha Yang <seungha@centricular.com>
* 2022 Víctor Jáquez <vjaquez@igalia.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 <stdlib.h>
#include "../key-handler.h"
static GMainLoop *loop = NULL;
static gint width = 640;
static gint height = 480;
static guint rc_ctrl = 0;
G_LOCK_DEFINE_STATIC (input_lock);
typedef struct
{
GstElement *pipeline;
GstElement *capsfilter;
GstElement *encoder;
gulong probe_id;
gint prev_width;
gint prev_height;
} TestCallbackData;
static gboolean
bus_msg (GstBus * bus, GstMessage * msg, gpointer user_data)
{
switch (GST_MESSAGE_TYPE (msg)) {
case GST_MESSAGE_ERROR:{
GError *err;
gchar *dbg;
gst_message_parse_error (msg, &err, &dbg);
gst_printerrln ("ERROR %s", err->message);
if (dbg != NULL)
gst_printerrln ("ERROR debug information: %s", dbg);
g_clear_error (&err);
g_free (dbg);
g_main_loop_quit (loop);
break;
}
case GST_MESSAGE_PROPERTY_NOTIFY:{
const GValue *val;
const gchar *name;
GstObject *obj;
gchar *val_str = NULL;
gchar *obj_name;
gst_message_parse_property_notify (msg, &obj, &name, &val);
if (!GST_IS_VIDEO_ENCODER (obj))
break;
obj_name = gst_object_get_name (GST_OBJECT (obj));
if (val) {
if (G_VALUE_HOLDS_STRING (val))
val_str = g_value_dup_string (val);
else if (G_VALUE_TYPE (val) == GST_TYPE_CAPS)
val_str = gst_caps_to_string (g_value_get_boxed (val));
else if (G_VALUE_HOLDS_BOOLEAN (val) || G_VALUE_HOLDS_INT (val)
|| G_VALUE_HOLDS_UINT (val) || G_VALUE_HOLDS_ENUM (val))
val_str = gst_value_serialize (val);
else
val_str = g_strdup ("(unknown type)");
} else {
val_str = g_strdup ("(no value)");
}
gst_println ("%s: %s = %s", obj_name, name, val_str);
g_free (obj_name);
g_free (val_str);
break;
}
default:
break;
}
return TRUE;
}
static void
loop_rate_control (GstElement * encoder)
{
GParamSpec *pspec =
g_object_class_find_property (G_OBJECT_GET_CLASS (encoder),
"rate-control");
GEnumClass *enum_class;
gint i, default_value;
if (!pspec)
return;
enum_class = G_PARAM_SPEC_ENUM (pspec)->enum_class;
if (rc_ctrl == 0) {
default_value = G_PARAM_SPEC_ENUM (pspec)->default_value;
for (i = 0; i < enum_class->n_values; i++) {
if (enum_class->values[i].value == default_value) {
rc_ctrl = i;
break;
}
}
}
i = ++rc_ctrl % enum_class->n_values;
g_object_set (encoder, "rate-control", enum_class->values[i].value, NULL);
}
static GstPadProbeReturn
resolution_change_probe (GstPad * pad, GstPadProbeInfo * info,
gpointer user_data)
{
GstPadProbeReturn ret = GST_PAD_PROBE_OK;
TestCallbackData *data = (TestCallbackData *) user_data;
G_LOCK (input_lock);
if (GST_IS_BUFFER (GST_PAD_PROBE_INFO_DATA (info))) {
GstBuffer *buffer = GST_PAD_PROBE_INFO_BUFFER (info);
GstPad *peer = gst_pad_get_peer (pad);
GstFlowReturn flow_ret = GST_FLOW_OK;
ret = GST_PAD_PROBE_HANDLED;
if (peer) {
flow_ret = gst_pad_chain (peer, buffer);
if (flow_ret != GST_FLOW_OK) {
gst_pad_remove_probe (pad, data->probe_id);
data->probe_id = 0;
} else {
if (data->prev_width != width || data->prev_height != height) {
GstCaps *caps = NULL;
gint next_width, next_height;
next_width = width;
next_height = height;
g_object_get (data->capsfilter, "caps", &caps, NULL);
caps = gst_caps_make_writable (caps);
gst_caps_set_simple (caps,
"width", G_TYPE_INT, next_width, "height", G_TYPE_INT,
next_height, NULL);
g_object_set (data->capsfilter, "caps", caps, NULL);
gst_caps_unref (caps);
data->prev_width = next_width;
data->prev_height = next_height;
}
}
}
}
G_UNLOCK (input_lock);
return ret;
}
static void
print_keyboard_help (void)
{
/* *INDENT-OFF* */
static struct
{
const gchar *key_desc;
const gchar *key_help;
} key_controls[] = {
{
"q", "Quit"}, {
"right arrow", "Increase Width"}, {
"left arrow", "Decrease Width"}, {
"up arrow", "Increase Height"}, {
"down arrow", "Decrease Height"}, {
"r", "Loop rate control"}, {
">", "Increase bitrate by 100 kbps"}, {
"<", "Decrease bitrate by 100 kbps"}, {
"]", "Increase target usage"}, {
"[", "Decrease target usage"}, {
"}", "Increase target percentage by 10% (only in VBR)"}, {
"{", "Decrease target percentage by 10% (only in VBR)"}, {
"I", "Increase QP-I"}, {
"i", "Decrease QP-I"}, {
"P", "Increase QP-P (only in CQP)"}, {
"p", "Decrease QP-P (only in CQP)"}, {
"B", "Increase QP-B (only in CQP)"}, {
"b", "Decrease QP-B (only in CQP)"}, {
"f", "Force to set a key frame"}, {
"k", "show keyboard shortcuts"}
};
/* *INDENT-ON* */
guint i, chars_to_pad, desc_len, max_desc_len = 0;
gst_print ("\n\n%s\n\n", "Keyboard controls:");
for (i = 0; i < G_N_ELEMENTS (key_controls); ++i) {
desc_len = g_utf8_strlen (key_controls[i].key_desc, -1);
max_desc_len = MAX (max_desc_len, desc_len);
}
++max_desc_len;
for (i = 0; i < G_N_ELEMENTS (key_controls); ++i) {
chars_to_pad = max_desc_len - g_utf8_strlen (key_controls[i].key_desc, -1);
gst_print ("\t%s", key_controls[i].key_desc);
gst_print ("%-*s: ", chars_to_pad, "");
gst_print ("%s\n", key_controls[i].key_help);
}
gst_print ("\n");
}
static inline gboolean
is_ratectl (GstElement * encoder, guint rc)
{
guint ratectl = 0;
g_object_get (encoder, "rate-control", &ratectl, NULL);
return (ratectl == rc);
}
static void
keyboard_cb (gchar input, gboolean is_ascii, gpointer user_data)
{
TestCallbackData *data = (TestCallbackData *) user_data;
G_LOCK (input_lock);
if (!is_ascii) {
switch (input) {
case KB_ARROW_UP:
height += 2;
break;
case KB_ARROW_DOWN:
height -= 2;
height = MAX (height, 16);
break;
case KB_ARROW_LEFT:
width -= 2;
width = MAX (width, 16);
break;
case KB_ARROW_RIGHT:
width += 2;
break;
default:
break;
}
} else {
switch (input) {
case 'k':
case 'K':
print_keyboard_help ();
break;
case 'q':
case 'Q':
gst_element_send_event (data->pipeline, gst_event_new_eos ());
g_main_loop_quit (loop);
break;
case 'r':
case 'R':
loop_rate_control (data->encoder);
break;
case '>':{
guint bitrate;
if (is_ratectl (data->encoder, 0x00000010 /* VA_RC_CQP */ ))
break;
g_object_get (data->encoder, "bitrate", &bitrate, NULL);
bitrate += 100;
if (bitrate <= 2048000)
g_object_set (data->encoder, "bitrate", bitrate, NULL);
break;
}
case '<':{
gint bitrate;
if (is_ratectl (data->encoder, 0x00000010 /* VA_RC_CQP */ ))
break;
g_object_get (data->encoder, "bitrate", &bitrate, NULL);
bitrate -= 100;
if (bitrate < 0)
bitrate = 0;
g_object_set (data->encoder, "bitrate", bitrate, NULL);
break;
}
case ']':{
guint usage;
g_object_get (data->encoder, "target-usage", &usage, NULL);
usage += 1;
if (usage <= 7)
g_object_set (data->encoder, "target-usage", usage, NULL);
break;
}
case '[':{
guint usage;
g_object_get (data->encoder, "target-usage", &usage, NULL);
usage -= 1;
if (usage >= 1)
g_object_set (data->encoder, "target-usage", usage, NULL);
break;
}
case '}':{
guint target;
if (!is_ratectl (data->encoder, 0x00000004 /* VA_RC_VBR */ ))
break;
g_object_get (data->encoder, "target-percentage", &target, NULL);
target += 10;
if (target <= 100)
g_object_set (data->encoder, "target-percentage", target, NULL);
break;
}
case '{':{
guint target;
if (!is_ratectl (data->encoder, 0x00000004 /* VA_RC_VBR */ ))
break;
g_object_get (data->encoder, "target-percentage", &target, NULL);
target -= 10;
if (target >= 50)
g_object_set (data->encoder, "target-percentage", target, NULL);
break;
}
case 'I':{
guint qpi;
g_object_get (data->encoder, "qpi", &qpi, NULL);
qpi += 1;
if (qpi <= 51)
g_object_set (data->encoder, "qpi", qpi, NULL);
break;
}
case 'i':{
gint qpi;
g_object_get (data->encoder, "qpi", &qpi, NULL);
qpi -= 1;
if (qpi >= 0)
g_object_set (data->encoder, "qpi", qpi, NULL);
break;
}
case 'P':{
guint qpp;
if (!is_ratectl (data->encoder, 0x00000010 /* VA_RC_CQP */ ))
break;
g_object_get (data->encoder, "qpp", &qpp, NULL);
qpp += 1;
if (qpp <= 51)
g_object_set (data->encoder, "qpp", qpp, NULL);
break;
}
case 'p':{
gint qpp;
if (!is_ratectl (data->encoder, 0x00000010 /* VA_RC_CQP */ ))
break;
g_object_get (data->encoder, "qpp", &qpp, NULL);
qpp -= 1;
if (qpp >= 0)
g_object_set (data->encoder, "qpp", qpp, NULL);
break;
}
case 'B':{
guint qpb;
if (!is_ratectl (data->encoder, 0x00000010 /* VA_RC_CQP */ ))
break;
g_object_get (data->encoder, "qpb", &qpb, NULL);
qpb += 1;
if (qpb <= 51)
g_object_set (data->encoder, "qpb", qpb, NULL);
break;
}
case 'b':{
gint qpb;
if (!is_ratectl (data->encoder, 0x00000010 /* VA_RC_CQP */ ))
break;
g_object_get (data->encoder, "qpb", &qpb, NULL);
qpb -= 1;
if (qpb >= 0)
g_object_set (data->encoder, "qpb", qpb, NULL);
break;
}
case 'f':{
GstEvent *event = gst_video_event_new_upstream_force_key_unit
(GST_CLOCK_TIME_NONE, TRUE, 0);
gst_println ("Sending force keyunit event");
gst_element_send_event (data->encoder, event);
break;
}
default:
break;
}
}
G_UNLOCK (input_lock);
}
gint
main (gint argc, gchar ** argv)
{
GstElement *pipeline;
GstElement *src, *capsfilter, *convert, *enc, *dec, *parser, *vpp, *sink;
GstElement *queue0, *queue1;
GstStateChangeReturn sret;
GError *error = NULL;
GOptionContext *option_ctx;
GstCaps *caps;
GstPad *pad;
TestCallbackData data = { 0, };
gchar *codec = NULL;
gulong deep_notify_id = 0;
guint idx;
/* *INDENT-OFF* */
const GOptionEntry options[] = {
{"codec", 'c', 0, G_OPTION_ARG_STRING, &codec,
"Codec to test: [ *h264, h265 ]"},
{NULL}
};
const struct {
const char *codec;
const char *encoder;
const char *parser;
const char *decoder;
} elements_map[] = {
{ "h264", "vah264enc", "h264parse", "vah264dec" },
{ "h265", "vah265enc", "h265parse", "vah265dec" },
};
/* *INDENT-ON* */
#define MAKE_ELEMENT_AND_ADD(elem, name) G_STMT_START { \
GstElement *_elem = gst_element_factory_make (name, NULL); \
if (!_elem) { \
gst_printerrln ("%s is not available", name); \
exit (1); \
} \
gst_println ("Adding element %s", name); \
elem = _elem; \
gst_bin_add (GST_BIN (pipeline), elem); \
} G_STMT_END
option_ctx =
g_option_context_new ("VA video encoder dynamic reconfigure example");
g_option_context_add_main_entries (option_ctx, options, NULL);
g_option_context_add_group (option_ctx, gst_init_get_option_group ());
g_option_context_set_help_enabled (option_ctx, TRUE);
if (!g_option_context_parse (option_ctx, &argc, &argv, &error)) {
gst_printerrln ("option parsing failed: %s\n", error->message);
g_clear_error (&error);
exit (1);
}
g_option_context_free (option_ctx);
gst_init (NULL, NULL);
if (!codec)
codec = g_strdup ("h264");
for (idx = 0; idx < G_N_ELEMENTS (elements_map); idx++) {
if (g_strcmp0 (elements_map[idx].codec, codec) == 0)
break;
}
if (idx == G_N_ELEMENTS (elements_map)) {
gst_printerrln ("Unsupported codec: %s", codec);
exit (1);
}
g_free (codec);
pipeline = gst_pipeline_new (NULL);
MAKE_ELEMENT_AND_ADD (src, "videotestsrc");
g_object_set (src, "pattern", 1, NULL);
MAKE_ELEMENT_AND_ADD (capsfilter, "capsfilter");
MAKE_ELEMENT_AND_ADD (convert, "videoconvert");
MAKE_ELEMENT_AND_ADD (enc, elements_map[idx].encoder);
MAKE_ELEMENT_AND_ADD (queue0, "queue");
MAKE_ELEMENT_AND_ADD (parser, elements_map[idx].parser);
MAKE_ELEMENT_AND_ADD (dec, elements_map[idx].decoder);
MAKE_ELEMENT_AND_ADD (vpp, "vapostproc");
MAKE_ELEMENT_AND_ADD (queue1, "queue");
MAKE_ELEMENT_AND_ADD (sink, "autovideosink");
if (!gst_element_link_many (src, capsfilter, convert, enc, queue0,
parser, dec, vpp, queue1, sink, NULL)) {
gst_printerrln ("Failed to link element");
exit (1);
}
caps = gst_caps_new_simple ("video/x-raw", "width", G_TYPE_INT,
width, "height", G_TYPE_INT, height,
"format", G_TYPE_STRING, "I420", NULL);
g_object_set (capsfilter, "caps", caps, NULL);
gst_caps_unref (caps);
g_object_set (convert, "chroma-mode", 3, NULL);
g_object_set (convert, "dither", 0, NULL);
data.pipeline = pipeline;
data.capsfilter = capsfilter;
data.encoder = enc;
pad = gst_element_get_static_pad (capsfilter, "src");
data.probe_id = gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_BUFFER,
resolution_change_probe, &data, NULL);
gst_object_unref (pad);
data.prev_width = width;
data.prev_height = height;
loop = g_main_loop_new (NULL, FALSE);
deep_notify_id =
gst_element_add_property_deep_notify_watch (pipeline, NULL, TRUE);
gst_bus_add_watch (GST_ELEMENT_BUS (pipeline), bus_msg, &data);
/* run the pipeline */
sret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
if (sret == GST_STATE_CHANGE_FAILURE) {
gst_printerrln ("Pipeline doesn't want to playing");
} else {
set_key_handler ((KeyInputCallback) keyboard_cb, &data);
g_main_loop_run (loop);
unset_key_handler ();
}
if (deep_notify_id != 0)
g_signal_handler_disconnect (pipeline, deep_notify_id);
gst_element_set_state (pipeline, GST_STATE_NULL);
gst_bus_remove_watch (GST_ELEMENT_BUS (pipeline));
gst_object_unref (pipeline);
g_main_loop_unref (loop);
return 0;
}
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