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gstreamer/subprojects/gst-plugins-bad/tests/examples/qsv/qsvenc-dynamic-reconfigure.c
Seungha Yang 7b89cdbefe qsvencoder: Update property names and default values 
Stop using MSDK plugins property naming, instead use unified names
and default values to be consistent with newly written NVIDIA encoders.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2140>
2022-04-09 14:00:35 +00:00

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/* GStreamer
* Copyright (C) 2022 Seungha Yang <seungha@centricular.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"
typedef enum
{
RC_MODE_CBR,
RC_MODE_VBR,
RC_MODE_AVBR,
RC_MODE_CQP,
} RcMode;
typedef enum
{
CODEC_AVC,
CODEC_HEVC,
CODEC_VP9
} Codec;
static GMainLoop *loop = NULL;
static gint width = 640;
static gint height = 480;
static guint bitrate = 1000;
static guint max_bitrate = 2000;
static guint avbr_accuracy = 0;
static guint convergence = 0;
static RcMode rc_mode = RC_MODE_CBR;
static Codec codec = CODEC_AVC;
static guint qp_i = 24;
static guint qp_p = 24;
static guint qp_b = 24;
static guint max_qp = 51;
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 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"}, {
">", "Increase bitrate by 100 kbps"}, {
"<", "Decrease bitrate by 100 kbps"}, {
"]", "Increase max-bitrate by 100 kbps"}, {
"[", "Decrease max-bitrate by 100 kbps"}, {
"A", "Increase AVBR accuracy by 10 percent"}, {
"a", "Decrease AVBR accuracy by 10 percent"}, {
"C", "Increase AVBR convergence by 100 frame"}, {
"c", "Decrease AVBR convergence by 100 frame"}, {
"I", "Increase QP-I"}, {
"i", "Decrease QP-I"}, {
"P", "Increase QP-P"}, {
"p", "Decrease QP-P"}, {
"B", "Increase QP-B"}, {
"b", "Decrease QP-B"}, {
"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 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;
gst_println ("Increase height to %d", height);
break;
case KB_ARROW_DOWN:
height -= 2;
height = MAX (height, 16);
gst_println ("Decrease height to %d", height);
break;
case KB_ARROW_LEFT:
width -= 2;
width = MAX (width, 16);
gst_println ("Decrease width to %d", width);
break;
case KB_ARROW_RIGHT:
height += 2;
gst_println ("Increase height to %d", height);
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 '>':
if (rc_mode != RC_MODE_CQP) {
bitrate += 100;
bitrate = MIN (bitrate, 0xffff);
if (rc_mode == RC_MODE_VBR)
bitrate = MIN (bitrate, max_bitrate);
gst_println ("Increase bitrate to %d", bitrate);
g_object_set (data->encoder, "bitrate", bitrate, NULL);
}
break;
case '<':
if (rc_mode != RC_MODE_CQP) {
bitrate -= 100;
bitrate = MAX (bitrate, 100);
if (rc_mode == RC_MODE_VBR)
bitrate = MIN (bitrate, max_bitrate);
gst_println ("Decrease bitrate to %d", bitrate);
g_object_set (data->encoder, "bitrate", bitrate, NULL);
}
break;
case ']':
if (rc_mode == RC_MODE_VBR) {
max_bitrate += 100;
max_bitrate = MIN (max_bitrate, 0xffff);
max_bitrate = MAX (max_bitrate, bitrate);
gst_println ("Increase max-bitrate to %d", max_bitrate);
g_object_set (data->encoder, "max-bitrate", max_bitrate, NULL);
}
break;
case '[':
if (rc_mode == RC_MODE_VBR) {
max_bitrate -= 100;
max_bitrate = MAX (max_bitrate, 100);
max_bitrate = MAX (max_bitrate, bitrate);
gst_println ("Decrease max-bitrate to %d", max_bitrate);
g_object_set (data->encoder, "max-bitrate", max_bitrate, NULL);
}
break;
case 'A':
if (rc_mode == RC_MODE_AVBR && avbr_accuracy <= 900) {
avbr_accuracy += 100;
gst_println ("Increase AVBR accuracy to %d", avbr_accuracy);
g_object_set (data->encoder, "avbr-accuracy", avbr_accuracy, NULL);
}
break;
case 'a':
if (rc_mode == RC_MODE_AVBR && avbr_accuracy >= 100) {
avbr_accuracy -= 100;
gst_println ("Decrease AVBR accuracy to %d", avbr_accuracy);
g_object_set (data->encoder, "avbr-accuracy", avbr_accuracy, NULL);
}
break;
case 'C':
if (rc_mode == RC_MODE_AVBR && convergence < G_MAXINT16) {
gst_println ("Increase AVBR Convergence to %d", convergence++);
g_object_set (data->encoder, "avbr-convergence", convergence, NULL);
}
break;
case 'c':
if (rc_mode == RC_MODE_AVBR && convergence > 0) {
gst_println ("Decrease AVBR Convergence to %d", convergence++);
g_object_set (data->encoder, "avbr-convergence", convergence, NULL);
}
break;
case 'I':
if (rc_mode == RC_MODE_CQP && qp_i < max_qp) {
gst_println ("Increase QP-I to %d", ++qp_i);
g_object_set (data->encoder, "qp-i", qp_i, NULL);
}
break;
case 'i':
if (rc_mode == RC_MODE_CQP && qp_i > 0) {
gst_println ("Decrease QP-I to %d", --qp_i);
g_object_set (data->encoder, "qp-i", qp_i, NULL);
}
break;
case 'P':
if (rc_mode == RC_MODE_CQP && qp_p < max_qp) {
gst_println ("Increase QP-P to %d", ++qp_p);
g_object_set (data->encoder, "qp-p", qp_p, NULL);
}
break;
case 'p':
if (rc_mode == RC_MODE_CQP && qp_p > 0) {
gst_println ("Decrease QP-P to %d", --qp_p);
g_object_set (data->encoder, "qp-p", qp_p, NULL);
}
break;
case 'B':
if (rc_mode == RC_MODE_CQP && qp_b < max_qp && codec != CODEC_VP9) {
gst_println ("Increase QP-B to %d", ++qp_b);
g_object_set (data->encoder, "qp-b", qp_b, NULL);
}
break;
case 'b':
if (rc_mode == RC_MODE_CQP && qp_b > 0 && codec != CODEC_VP9) {
gst_println ("Decrease QP-B to %d", --qp_b);
g_object_set (data->encoder, "qp-b", qp_b, NULL);
}
break;
default:
break;
}
}
G_UNLOCK (input_lock);
}
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;
}
default:
break;
}
return TRUE;
}
static gboolean
check_qsvencoder_available (const gchar * encoder_name)
{
gboolean ret = TRUE;
GstElement *elem;
elem = gst_element_factory_make (encoder_name, NULL);
if (!elem) {
gst_printerrln ("%s is not available", encoder_name);
return FALSE;
}
if (gst_element_set_state (elem,
GST_STATE_PAUSED) != GST_STATE_CHANGE_SUCCESS) {
gst_printerrln ("cannot open device");
ret = FALSE;
}
gst_element_set_state (elem, GST_STATE_NULL);
gst_object_unref (elem);
return ret;
}
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;
}
gint
main (gint argc, gchar ** argv)
{
GstElement *pipeline;
GstElement *src, *capsfilter, *enc, *enc_queue, *dec, *parser, *queue, *sink;
GstStateChangeReturn sret;
GError *error = NULL;
GOptionContext *option_ctx;
GstCaps *caps;
TestCallbackData data = { 0, };
GstPad *pad;
gchar *encoder_name = NULL;
gchar *rate_control = NULL;
gint bframes = 0;
/* *INDENT-OFF* */
GOptionEntry options[] = {
{"encoder", 0, 0, G_OPTION_ARG_STRING, &encoder_name,
"QSV video encoder element to test, default: qsvh264enc"},
{"rate-control", 0, 0, G_OPTION_ARG_STRING, &rate_control,
"Rate control method to test, default: cbr"},
{"b-frames", 0, 0, G_OPTION_ARG_INT, &bframes,
"Number of B frames between I and P frames, default: 0"},
{NULL}
};
/* *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 ("QSV video encoder dynamic reconfigure example");
g_option_context_add_main_entries (option_ctx, options, NULL);
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 (!encoder_name)
encoder_name = g_strdup ("qsvh264enc");
if (!rate_control)
rate_control = g_strdup ("cbr");
if (g_strcmp0 (encoder_name, "qsvh264enc") == 0) {
codec = CODEC_AVC;
} else if (g_strcmp0 (encoder_name, "qsvh265enc") == 0) {
codec = CODEC_HEVC;
} else if (g_strcmp0 (encoder_name, "qsvvp9enc") == 0) {
codec = CODEC_VP9;
max_qp = 255;
qp_i = 128;
qp_p = 128;
} else {
gst_printerrln ("Unexpected encoder %s", encoder_name);
exit (1);
}
if (g_strcmp0 (rate_control, "cbr") == 0) {
rc_mode = RC_MODE_CBR;
} else if (g_strcmp0 (rate_control, "vbr") == 0) {
rc_mode = RC_MODE_VBR;
} else if (g_strcmp0 (rate_control, "avbr") == 0 && codec == CODEC_AVC) {
rc_mode = RC_MODE_AVBR;
} else if (g_strcmp0 (rate_control, "cqp") == 0) {
rc_mode = RC_MODE_CQP;
} else {
gst_printerrln ("Unexpected rate-control method %s for encoder %s",
rate_control, encoder_name);
exit (1);
}
if (!check_qsvencoder_available (encoder_name)) {
gst_printerrln ("Cannot load %s plugin", encoder_name);
exit (1);
}
/* prepare the pipeline */
loop = g_main_loop_new (NULL, FALSE);
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 (enc, encoder_name);
g_object_set (enc, "bitrate", bitrate, "max-bitrate", max_bitrate,
"qp-i", qp_i, "qp-p", qp_p, "gop-size", 30, NULL);
if (codec != CODEC_VP9)
g_object_set (enc, "qp-b", qp_b, NULL);
gst_util_set_object_arg (G_OBJECT (enc), "rate-control", rate_control);
MAKE_ELEMENT_AND_ADD (enc_queue, "queue");
if (g_strrstr (encoder_name, "h265")) {
if (bframes > 0)
g_object_set (enc, "b-frames", bframes, NULL);
if (rc_mode == RC_MODE_CBR || rc_mode == RC_MODE_VBR) {
/* Disable HRD conformance for dynamic bitrate update */
g_object_set (enc, "disable-hrd-conformance", TRUE, NULL);
}
MAKE_ELEMENT_AND_ADD (parser, "h265parse");
#ifdef G_OS_WIN32
MAKE_ELEMENT_AND_ADD (dec, "d3d11h265dec");
#else
MAKE_ELEMENT_AND_ADD (dec, "vah265dec");
#endif
} else if (g_strrstr (encoder_name, "vp9")) {
MAKE_ELEMENT_AND_ADD (parser, "vp9parse");
#ifdef G_OS_WIN32
MAKE_ELEMENT_AND_ADD (dec, "d3d11vp9dec");
#else
MAKE_ELEMENT_AND_ADD (dec, "vavp9dec");
#endif
} else {
if (bframes > 0)
g_object_set (enc, "b-frames", bframes, NULL);
if (rc_mode == RC_MODE_CBR || rc_mode == RC_MODE_VBR) {
/* Disable HRD conformance for dynamic bitrate update */
g_object_set (enc, "disable-hrd-conformance", TRUE, NULL);
}
MAKE_ELEMENT_AND_ADD (parser, "h264parse");
#ifdef G_OS_WIN32
MAKE_ELEMENT_AND_ADD (dec, "d3d11h264dec");
#else
MAKE_ELEMENT_AND_ADD (dec, "vah264dec");
#endif
}
MAKE_ELEMENT_AND_ADD (queue, "queue");
#ifdef G_OS_WIN32
MAKE_ELEMENT_AND_ADD (sink, "d3d11videosink");
#else
MAKE_ELEMENT_AND_ADD (sink, "glimagesink");
#endif
if (!gst_element_link_many (src, capsfilter, enc, enc_queue,
parser, dec, queue, 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, NULL);
g_object_set (capsfilter, "caps", caps, NULL);
gst_caps_unref (caps);
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,
(GstPadProbeCallback) resolution_change_probe, &data, NULL);
gst_object_unref (pad);
data.prev_width = width;
data.prev_height = height;
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\n");
} else {
set_key_handler ((KeyInputCallback) keyboard_cb, &data);
g_main_loop_run (loop);
unset_key_handler ();
}
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);
g_free (encoder_name);
g_free (rate_control);
return 0;
}
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