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gstreamer/ext/openh264/gstopenh264enc.cpp
Nicola Murino e8f11615bd openh264enc: set GST_PARAM_MUTABLE_PLAYING for bitrate/max-bitrate properties 
This way is documented that these properties can be changed in any state

https://bugzilla.gnome.org/show_bug.cgi?id=784988
2017-07-17 19:13:19 -04:00

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/*
* Copyright (c) 2014, Ericsson AB. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstopenh264enc.h"
#include <gst/gst.h>
#include <gst/base/base.h>
#include <gst/video/video.h>
#include <gst/video/gstvideoencoder.h>
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_openh264enc_debug_category);
#define GST_CAT_DEFAULT gst_openh264enc_debug_category
/* FIXME: we should not really directly use the enums from the openh264 API
* here, since it might change or be removed */
#define GST_TYPE_USAGE_TYPE (gst_openh264enc_usage_type_get_type ())
static GType
gst_openh264enc_usage_type_get_type (void)
{
static GType usage_type = 0;
if (!usage_type) {
static const GEnumValue usage_types[] = {
{CAMERA_VIDEO_REAL_TIME, "video from camera", "camera"},
{SCREEN_CONTENT_REAL_TIME, "screen content", "screen"},
{0, NULL, NULL},
};
usage_type = g_enum_register_static ("EUsageType", usage_types);
}
return usage_type;
}
#define GST_TYPE_RC_MODES (gst_openh264enc_rc_modes_get_type ())
static GType
gst_openh264enc_rc_modes_get_type (void)
{
static GType rc_modes_type = 0;
if (!rc_modes_type) {
static const GEnumValue rc_modes_types[] = {
{RC_QUALITY_MODE, "Quality mode", "quality"},
{RC_BITRATE_MODE, "Bitrate mode", "bitrate"},
{RC_BUFFERBASED_MODE, "No bitrate control, just using buffer status",
"buffer"},
{RC_OFF_MODE, "Rate control off mode", "off"},
{0, NULL, NULL},
};
rc_modes_type = g_enum_register_static ("RC_MODES", rc_modes_types);
}
return rc_modes_type;
}
#define GST_TYPE_OPENH264ENC_DEBLOCKING_MODE (gst_openh264enc_deblocking_mode_get_type ())
static GType
gst_openh264enc_deblocking_mode_get_type (void)
{
static const GEnumValue types[] = {
{GST_OPENH264_DEBLOCKING_ON, "Deblocking on", "on"},
{GST_OPENH264_DEBLOCKING_OFF, "Deblocking off", "off"},
{GST_OPENH264_DEBLOCKING_NOT_SLICE_BOUNDARIES,
"Deblocking on, except for slice boundaries", "not-slice-boundaries"},
{0, NULL, NULL},
};
static gsize id = 0;
if (g_once_init_enter (&id)) {
GType _id = g_enum_register_static ("GstOpenh264encDeblockingModes", types);
g_once_init_leave (&id, _id);
}
return (GType) id;
}
#define GST_TYPE_OPENH264ENC_SLICE_MODE (gst_openh264enc_slice_mode_get_type ())
static GType
gst_openh264enc_slice_mode_get_type (void)
{
static const GEnumValue types[] = {
{GST_OPENH264_SLICE_MODE_N_SLICES, "Fixed number of slices", "n-slices"},
{GST_OPENH264_SLICE_MODE_AUTO,
"Number of slices equal to number of threads", "auto"},
{0, NULL, NULL},
};
static gsize id = 0;
if (g_once_init_enter (&id)) {
GType _id = g_enum_register_static ("GstOpenh264EncSliceModes", types);
g_once_init_leave (&id, _id);
}
return (GType) id;
}
#define GST_TYPE_OPENH264ENC_COMPLEXITY (gst_openh264enc_complexity_get_type ())
static GType
gst_openh264enc_complexity_get_type (void)
{
static const GEnumValue types[] = {
{LOW_COMPLEXITY, "Low complexity / high speed encoding", "low"},
{MEDIUM_COMPLEXITY, "Medium complexity / medium speed encoding", "medium"},
{HIGH_COMPLEXITY, "High complexity / low speed encoding", "high"},
{0, NULL, NULL},
};
static gsize id = 0;
if (g_once_init_enter (&id)) {
GType _id = g_enum_register_static ("GstOpenh264encComplexity", types);
g_once_init_leave (&id, _id);
}
return (GType) id;
}
/* prototypes */
static void gst_openh264enc_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_openh264enc_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec);
static void gst_openh264enc_finalize (GObject * object);
static gboolean gst_openh264enc_start (GstVideoEncoder * encoder);
static gboolean gst_openh264enc_stop (GstVideoEncoder * encoder);
static gboolean gst_openh264enc_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state);
static GstFlowReturn gst_openh264enc_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame);
static GstFlowReturn gst_openh264enc_finish (GstVideoEncoder * encoder);
static gboolean gst_openh264enc_propose_allocation (GstVideoEncoder * encoder,
GstQuery * query);
static void gst_openh264enc_set_usage_type (GstOpenh264Enc * openh264enc,
gint usage_type);
static void gst_openh264enc_set_rate_control (GstOpenh264Enc * openh264enc,
gint rc_mode);
#define DEFAULT_BITRATE (128000)
#define DEFAULT_MAX_BITRATE (UNSPECIFIED_BIT_RATE)
#define DEFAULT_GOP_SIZE (90)
#define DEFAULT_MAX_SLICE_SIZE (1500000)
#define START_FRAMERATE 30
#define DEFAULT_USAGE_TYPE CAMERA_VIDEO_REAL_TIME
#define DEFAULT_RATE_CONTROL RC_QUALITY_MODE
#define DEFAULT_MULTI_THREAD 0
#define DEFAULT_ENABLE_DENOISE FALSE
#define DEFAULT_ENABLE_FRAME_SKIP FALSE
#define DEFAULT_DEBLOCKING_MODE GST_OPENH264_DEBLOCKING_ON
#define DEFAULT_BACKGROUND_DETECTION TRUE
#define DEFAULT_ADAPTIVE_QUANTIZATION TRUE
#define DEFAULT_SCENE_CHANGE_DETECTION TRUE
#define DEFAULT_SLICE_MODE GST_OPENH264_SLICE_MODE_N_SLICES
#define DEFAULT_NUM_SLICES 1
#define DEFAULT_COMPLEXITY MEDIUM_COMPLEXITY
#define DEFAULT_QP_MIN 0
#define DEFAULT_QP_MAX 51
enum
{
PROP_0,
PROP_USAGE_TYPE,
PROP_BITRATE,
PROP_MAX_BITRATE,
PROP_GOP_SIZE,
PROP_MAX_SLICE_SIZE,
PROP_RATE_CONTROL,
PROP_MULTI_THREAD,
PROP_ENABLE_DENOISE,
PROP_ENABLE_FRAME_SKIP,
PROP_DEBLOCKING_MODE,
PROP_BACKGROUND_DETECTION,
PROP_ADAPTIVE_QUANTIZATION,
PROP_SCENE_CHANGE_DETECTION,
PROP_SLICE_MODE,
PROP_NUM_SLICES,
PROP_COMPLEXITY,
PROP_QP_MIN,
PROP_QP_MAX,
N_PROPERTIES
};
/* pad templates */
static GstStaticPadTemplate gst_openh264enc_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("I420"))
);
static GstStaticPadTemplate gst_openh264enc_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS
("video/x-h264, stream-format=(string)\"byte-stream\", alignment=(string)\"au\", profile=(string)\"baseline\"")
);
/* class initialization */
G_DEFINE_TYPE_WITH_CODE (GstOpenh264Enc, gst_openh264enc,
GST_TYPE_VIDEO_ENCODER,
G_IMPLEMENT_INTERFACE (GST_TYPE_PRESET, NULL);
GST_DEBUG_CATEGORY_INIT (gst_openh264enc_debug_category, "openh264enc", 0,
"debug category for openh264enc element"));
static void
gst_openh264enc_class_init (GstOpenh264EncClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstVideoEncoderClass *video_encoder_class = GST_VIDEO_ENCODER_CLASS (klass);
/* Setting up pads and setting metadata should be moved to
base_class_init if you intend to subclass this class. */
gst_element_class_add_static_pad_template (GST_ELEMENT_CLASS (klass),
&gst_openh264enc_src_template);
gst_element_class_add_static_pad_template (GST_ELEMENT_CLASS (klass),
&gst_openh264enc_sink_template);
gst_element_class_set_static_metadata (GST_ELEMENT_CLASS (klass),
"OpenH264 video encoder", "Encoder/Video", "OpenH264 video encoder",
"Ericsson AB, http://www.ericsson.com");
gobject_class->set_property = gst_openh264enc_set_property;
gobject_class->get_property = gst_openh264enc_get_property;
gobject_class->finalize = gst_openh264enc_finalize;
video_encoder_class->start = GST_DEBUG_FUNCPTR (gst_openh264enc_start);
video_encoder_class->stop = GST_DEBUG_FUNCPTR (gst_openh264enc_stop);
video_encoder_class->set_format =
GST_DEBUG_FUNCPTR (gst_openh264enc_set_format);
video_encoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_openh264enc_handle_frame);
video_encoder_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_openh264enc_propose_allocation);
video_encoder_class->finish = GST_DEBUG_FUNCPTR (gst_openh264enc_finish);
/* define properties */
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_USAGE_TYPE,
g_param_spec_enum ("usage-type", "Usage type",
"Type of video content",
GST_TYPE_USAGE_TYPE, CAMERA_VIDEO_REAL_TIME,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_RATE_CONTROL,
g_param_spec_enum ("rate-control", "Rate control",
"Rate control mode",
GST_TYPE_RC_MODES, RC_QUALITY_MODE,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MULTI_THREAD,
g_param_spec_uint ("multi-thread", "Number of threads",
"The number of threads.",
0, G_MAXUINT, DEFAULT_MULTI_THREAD,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_ENABLE_DENOISE,
g_param_spec_boolean ("enable-denoise", "Denoise Control",
"Denoise control",
FALSE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_ENABLE_FRAME_SKIP,
g_param_spec_boolean ("enable-frame-skip", "Skip Frames",
"Skip frames to reach target bitrate",
FALSE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_BITRATE,
g_param_spec_uint ("bitrate", "Bitrate",
"Bitrate (in bits per second)",
0, G_MAXUINT, DEFAULT_BITRATE,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_PLAYING)));
g_object_class_install_property (gobject_class, PROP_MAX_BITRATE,
g_param_spec_uint ("max-bitrate", "Max Bitrate",
"Maximum Bitrate (in bits per second)",
0, G_MAXUINT, DEFAULT_MAX_BITRATE,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_PLAYING)));
g_object_class_install_property (gobject_class, PROP_QP_MIN,
g_param_spec_uint ("qp-min", "Minimum Quantizer",
"Minimum quantizer", 0, 51, DEFAULT_QP_MIN,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_QP_MAX,
g_param_spec_uint ("qp-max", "Maximum Quantizer",
"Maximum quantizer", 0, 51, DEFAULT_QP_MAX,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_GOP_SIZE,
g_param_spec_uint ("gop-size", "GOP size",
"Number of frames between intra frames",
0, G_MAXUINT, DEFAULT_GOP_SIZE,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_MAX_SLICE_SIZE,
g_param_spec_uint ("max-slice-size", "Max slice size",
"The maximum size of one slice (in bytes).",
0, G_MAXUINT, DEFAULT_MAX_SLICE_SIZE,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_DEBLOCKING_MODE, g_param_spec_enum ("deblocking",
"Deblocking mode", "Deblocking mode",
GST_TYPE_OPENH264ENC_DEBLOCKING_MODE, DEFAULT_DEBLOCKING_MODE,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_BACKGROUND_DETECTION,
g_param_spec_boolean ("background-detection", "Background detection",
"Background detection", DEFAULT_BACKGROUND_DETECTION,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_ADAPTIVE_QUANTIZATION,
g_param_spec_boolean ("adaptive-quantization", "Adaptive quantization",
"Adaptive quantization", DEFAULT_ADAPTIVE_QUANTIZATION,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_SCENE_CHANGE_DETECTION,
g_param_spec_boolean ("scene-change-detection",
"Scene change detection", "Scene change detection",
DEFAULT_SCENE_CHANGE_DETECTION,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SLICE_MODE,
g_param_spec_enum ("slice-mode", "Slice mode", "Slice mode",
GST_TYPE_OPENH264ENC_SLICE_MODE, DEFAULT_SLICE_MODE,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_NUM_SLICES,
g_param_spec_uint ("num-slices", "Number of slices",
"The number of slices (needs slice-mode=n-slices)",
0, G_MAXUINT, DEFAULT_NUM_SLICES,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_COMPLEXITY,
g_param_spec_enum ("complexity", "Complexity / quality / speed tradeoff",
"Complexity", GST_TYPE_OPENH264ENC_COMPLEXITY, DEFAULT_COMPLEXITY,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
}
static void
gst_openh264enc_init (GstOpenh264Enc * openh264enc)
{
openh264enc->gop_size = DEFAULT_GOP_SIZE;
openh264enc->usage_type = DEFAULT_USAGE_TYPE;
openh264enc->rate_control = DEFAULT_RATE_CONTROL;
openh264enc->multi_thread = DEFAULT_MULTI_THREAD;
openh264enc->max_slice_size = DEFAULT_MAX_SLICE_SIZE;
openh264enc->bitrate = DEFAULT_BITRATE;
openh264enc->max_bitrate = DEFAULT_MAX_BITRATE;
openh264enc->qp_min = DEFAULT_QP_MIN;
openh264enc->qp_max = DEFAULT_QP_MAX;
openh264enc->framerate = START_FRAMERATE;
openh264enc->input_state = NULL;
openh264enc->time_per_frame = GST_SECOND / openh264enc->framerate;
openh264enc->frame_count = 0;
openh264enc->previous_timestamp = 0;
openh264enc->enable_denoise = DEFAULT_ENABLE_DENOISE;
openh264enc->enable_frame_skip = DEFAULT_ENABLE_FRAME_SKIP;
openh264enc->deblocking_mode = DEFAULT_DEBLOCKING_MODE;
openh264enc->background_detection = DEFAULT_BACKGROUND_DETECTION;
openh264enc->adaptive_quantization = DEFAULT_ADAPTIVE_QUANTIZATION;
openh264enc->scene_change_detection = DEFAULT_SCENE_CHANGE_DETECTION;
openh264enc->slice_mode = DEFAULT_SLICE_MODE;
openh264enc->num_slices = DEFAULT_NUM_SLICES;
openh264enc->encoder = NULL;
openh264enc->complexity = DEFAULT_COMPLEXITY;
openh264enc->bitrate_changed = FALSE;
openh264enc->max_bitrate_changed = FALSE;
gst_openh264enc_set_usage_type (openh264enc, CAMERA_VIDEO_REAL_TIME);
gst_openh264enc_set_rate_control (openh264enc, RC_QUALITY_MODE);
}
static void
gst_openh264enc_set_usage_type (GstOpenh264Enc * openh264enc, gint usage_type)
{
switch (usage_type) {
case CAMERA_VIDEO_REAL_TIME:
openh264enc->usage_type = CAMERA_VIDEO_REAL_TIME;
break;
case SCREEN_CONTENT_REAL_TIME:
openh264enc->usage_type = SCREEN_CONTENT_REAL_TIME;
break;
default:
g_assert_not_reached ();
}
}
static void
gst_openh264enc_set_rate_control (GstOpenh264Enc * openh264enc, gint rc_mode)
{
switch (rc_mode) {
case RC_QUALITY_MODE:
openh264enc->rate_control = RC_QUALITY_MODE;
break;
case RC_BITRATE_MODE:
openh264enc->rate_control = RC_BITRATE_MODE;
break;
case RC_BUFFERBASED_MODE:
openh264enc->rate_control = RC_BUFFERBASED_MODE;
break;
case RC_OFF_MODE:
openh264enc->rate_control = RC_OFF_MODE;
break;
default:
g_assert_not_reached ();
}
}
void
gst_openh264enc_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GstOpenh264Enc *openh264enc = GST_OPENH264ENC (object);
GST_DEBUG_OBJECT (openh264enc, "set_property");
switch (property_id) {
case PROP_BITRATE:
GST_OBJECT_LOCK (openh264enc);
if (openh264enc->bitrate != g_value_get_uint (value)) {
openh264enc->bitrate = g_value_get_uint (value);
openh264enc->bitrate_changed = TRUE;
}
GST_OBJECT_UNLOCK (openh264enc);
break;
case PROP_MAX_BITRATE:
GST_OBJECT_LOCK (openh264enc);
if (openh264enc->max_bitrate != g_value_get_uint (value)) {
openh264enc->max_bitrate = g_value_get_uint (value);
openh264enc->max_bitrate_changed = TRUE;
}
GST_OBJECT_UNLOCK (openh264enc);
break;
case PROP_QP_MIN:
openh264enc->qp_min = g_value_get_uint (value);
break;
case PROP_QP_MAX:
openh264enc->qp_max = g_value_get_uint (value);
break;
case PROP_MULTI_THREAD:
openh264enc->multi_thread = g_value_get_uint (value);
break;
case PROP_USAGE_TYPE:
gst_openh264enc_set_usage_type (openh264enc, g_value_get_enum (value));
break;
case PROP_ENABLE_DENOISE:
openh264enc->enable_denoise = g_value_get_boolean (value);
break;
case PROP_ENABLE_FRAME_SKIP:
openh264enc->enable_frame_skip = g_value_get_boolean (value);
break;
case PROP_RATE_CONTROL:
gst_openh264enc_set_rate_control (openh264enc, g_value_get_enum (value));
break;
case PROP_GOP_SIZE:
openh264enc->gop_size = g_value_get_uint (value);
break;
case PROP_MAX_SLICE_SIZE:
openh264enc->max_slice_size = g_value_get_uint (value);
break;
case PROP_DEBLOCKING_MODE:
openh264enc->deblocking_mode =
(GstOpenh264encDeblockingMode) g_value_get_enum (value);
break;
case PROP_BACKGROUND_DETECTION:
openh264enc->background_detection = g_value_get_boolean (value);
break;
case PROP_ADAPTIVE_QUANTIZATION:
openh264enc->adaptive_quantization = g_value_get_boolean (value);
break;
case PROP_SCENE_CHANGE_DETECTION:
openh264enc->scene_change_detection = g_value_get_boolean (value);
break;
case PROP_SLICE_MODE:
openh264enc->slice_mode =
(GstOpenh264EncSliceMode) g_value_get_enum (value);
break;
case PROP_NUM_SLICES:
openh264enc->num_slices = g_value_get_uint (value);
break;
case PROP_COMPLEXITY:
openh264enc->complexity = (ECOMPLEXITY_MODE) g_value_get_enum (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_openh264enc_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GstOpenh264Enc *openh264enc = GST_OPENH264ENC (object);
GST_DEBUG_OBJECT (openh264enc, "get_property");
switch (property_id) {
case PROP_USAGE_TYPE:
g_value_set_enum (value, openh264enc->usage_type);
break;
case PROP_RATE_CONTROL:
g_value_set_enum (value, openh264enc->rate_control);
break;
case PROP_BITRATE:
g_value_set_uint (value, openh264enc->bitrate);
break;
case PROP_MAX_BITRATE:
g_value_set_uint (value, openh264enc->max_bitrate);
break;
case PROP_QP_MIN:
g_value_set_uint (value, openh264enc->qp_min);
break;
case PROP_QP_MAX:
g_value_set_uint (value, openh264enc->qp_max);
break;
case PROP_ENABLE_DENOISE:
g_value_set_boolean (value, openh264enc->enable_denoise);
break;
case PROP_ENABLE_FRAME_SKIP:
g_value_set_boolean (value, openh264enc->enable_frame_skip);
break;
case PROP_MULTI_THREAD:
g_value_set_uint (value, openh264enc->multi_thread);
break;
case PROP_GOP_SIZE:
g_value_set_uint (value, openh264enc->gop_size);
break;
case PROP_MAX_SLICE_SIZE:
g_value_set_uint (value, openh264enc->max_slice_size);
break;
case PROP_DEBLOCKING_MODE:
g_value_set_enum (value, openh264enc->deblocking_mode);
break;
case PROP_BACKGROUND_DETECTION:
g_value_set_boolean (value, openh264enc->background_detection);
break;
case PROP_ADAPTIVE_QUANTIZATION:
g_value_set_boolean (value, openh264enc->adaptive_quantization);
break;
case PROP_SCENE_CHANGE_DETECTION:
g_value_set_boolean (value, openh264enc->scene_change_detection);
break;
case PROP_SLICE_MODE:
g_value_set_enum (value, openh264enc->slice_mode);
break;
case PROP_NUM_SLICES:
g_value_set_uint (value, openh264enc->num_slices);
break;
case PROP_COMPLEXITY:
g_value_set_enum (value, openh264enc->complexity);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gst_openh264enc_finalize (GObject * object)
{
GstOpenh264Enc *openh264enc = GST_OPENH264ENC (object);
GST_DEBUG_OBJECT (openh264enc, "finalize");
/* clean up object here */
if (openh264enc->input_state) {
gst_video_codec_state_unref (openh264enc->input_state);
}
openh264enc->input_state = NULL;
G_OBJECT_CLASS (gst_openh264enc_parent_class)->finalize (object);
}
static gboolean
gst_openh264enc_start (GstVideoEncoder * encoder)
{
GstOpenh264Enc *openh264enc = GST_OPENH264ENC (encoder);
GST_DEBUG_OBJECT (openh264enc, "start");
return TRUE;
}
static gboolean
gst_openh264enc_stop (GstVideoEncoder * encoder)
{
GstOpenh264Enc *openh264enc;
openh264enc = GST_OPENH264ENC (encoder);
if (openh264enc->encoder != NULL) {
openh264enc->encoder->Uninitialize ();
WelsDestroySVCEncoder (openh264enc->encoder);
openh264enc->encoder = NULL;
}
openh264enc->encoder = NULL;
if (openh264enc->input_state) {
gst_video_codec_state_unref (openh264enc->input_state);
}
openh264enc->input_state = NULL;
GST_DEBUG_OBJECT (openh264enc, "openh264_enc_stop called");
return TRUE;
}
static gboolean
gst_openh264enc_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state)
{
GstOpenh264Enc *openh264enc = GST_OPENH264ENC (encoder);
gchar *debug_caps;
guint width, height, fps_n, fps_d;
SEncParamExt enc_params;
SliceModeEnum slice_mode = SM_SINGLE_SLICE;
guint n_slices = 1;
gint ret;
GstCaps *outcaps;
GstVideoCodecState *output_state;
openh264enc->frame_count = 0;
int video_format = videoFormatI420;
debug_caps = gst_caps_to_string (state->caps);
GST_DEBUG_OBJECT (openh264enc, "gst_e26d4_enc_set_format called, caps: %s",
debug_caps);
g_free (debug_caps);
gst_openh264enc_stop (encoder);
if (openh264enc->input_state) {
gst_video_codec_state_unref (openh264enc->input_state);
}
openh264enc->input_state = gst_video_codec_state_ref (state);
width = GST_VIDEO_INFO_WIDTH (&state->info);
height = GST_VIDEO_INFO_HEIGHT (&state->info);
fps_n = GST_VIDEO_INFO_FPS_N (&state->info);
fps_d = GST_VIDEO_INFO_FPS_D (&state->info);
if (openh264enc->encoder != NULL) {
openh264enc->encoder->Uninitialize ();
WelsDestroySVCEncoder (openh264enc->encoder);
openh264enc->encoder = NULL;
}
WelsCreateSVCEncoder (&openh264enc->encoder);
unsigned int uiTraceLevel = WELS_LOG_ERROR;
openh264enc->encoder->SetOption (ENCODER_OPTION_TRACE_LEVEL, &uiTraceLevel);
GST_OBJECT_LOCK (openh264enc);
openh264enc->encoder->GetDefaultParams (&enc_params);
enc_params.iUsageType = openh264enc->usage_type;
enc_params.iPicWidth = width;
enc_params.iPicHeight = height;
enc_params.iTargetBitrate = openh264enc->bitrate;
enc_params.iMaxBitrate = openh264enc->max_bitrate;
enc_params.iMaxQp = openh264enc->qp_max;
enc_params.iMinQp = openh264enc->qp_min;
enc_params.iRCMode = openh264enc->rate_control;
enc_params.iTemporalLayerNum = 1;
enc_params.iSpatialLayerNum = 1;
enc_params.iLtrMarkPeriod = 30;
enc_params.iMultipleThreadIdc = openh264enc->multi_thread;
enc_params.bEnableDenoise = openh264enc->enable_denoise;
enc_params.iComplexityMode = openh264enc->complexity;
enc_params.uiIntraPeriod = openh264enc->gop_size;
enc_params.bEnableBackgroundDetection = openh264enc->background_detection;
enc_params.bEnableAdaptiveQuant = openh264enc->adaptive_quantization;
enc_params.bEnableSceneChangeDetect = openh264enc->scene_change_detection;
enc_params.bEnableFrameSkip = openh264enc->enable_frame_skip;
enc_params.bEnableLongTermReference = 0;
#if OPENH264_MINOR >= 4
enc_params.eSpsPpsIdStrategy = CONSTANT_ID;
#else
enc_params.bEnableSpsPpsIdAddition = 0;
#endif
enc_params.bPrefixNalAddingCtrl = 0;
enc_params.fMaxFrameRate = fps_n * 1.0 / fps_d;
enc_params.iLoopFilterDisableIdc = openh264enc->deblocking_mode;
enc_params.sSpatialLayers[0].uiProfileIdc = PRO_BASELINE;
enc_params.sSpatialLayers[0].iVideoWidth = enc_params.iPicWidth;
enc_params.sSpatialLayers[0].iVideoHeight = enc_params.iPicHeight;
enc_params.sSpatialLayers[0].fFrameRate = fps_n * 1.0 / fps_d;
enc_params.sSpatialLayers[0].iSpatialBitrate = enc_params.iTargetBitrate;
enc_params.sSpatialLayers[0].iMaxSpatialBitrate = enc_params.iMaxBitrate;
if (openh264enc->slice_mode == GST_OPENH264_SLICE_MODE_N_SLICES) {
if (openh264enc->num_slices == 1)
slice_mode = SM_SINGLE_SLICE;
else
slice_mode = SM_FIXEDSLCNUM_SLICE;
n_slices = openh264enc->num_slices;
} else if (openh264enc->slice_mode == GST_OPENH264_SLICE_MODE_AUTO) {
#if OPENH264_MAJOR == 1 && OPENH264_MINOR < 6
slice_mode = SM_AUTO_SLICE;
#else
slice_mode = SM_FIXEDSLCNUM_SLICE;
n_slices = 0;
#endif
} else {
GST_ERROR_OBJECT (openh264enc, "unexpected slice mode %d",
openh264enc->slice_mode);
slice_mode = SM_SINGLE_SLICE;
}
#if OPENH264_MAJOR == 1 && OPENH264_MINOR < 6
enc_params.sSpatialLayers[0].sSliceCfg.uiSliceMode = slice_mode;
enc_params.sSpatialLayers[0].sSliceCfg.sSliceArgument.uiSliceNum = n_slices;
#else
enc_params.sSpatialLayers[0].sSliceArgument.uiSliceMode = slice_mode;
enc_params.sSpatialLayers[0].sSliceArgument.uiSliceNum = n_slices;
#endif
openh264enc->framerate = (1 + fps_n / fps_d);
ret = openh264enc->encoder->InitializeExt (&enc_params);
openh264enc->bitrate_changed = FALSE;
openh264enc->max_bitrate_changed = FALSE;
GST_OBJECT_UNLOCK (openh264enc);
if (ret != cmResultSuccess) {
GST_ERROR_OBJECT (openh264enc, "failed to initialize encoder");
return FALSE;
}
openh264enc->encoder->SetOption (ENCODER_OPTION_DATAFORMAT, &video_format);
outcaps =
gst_caps_copy (gst_static_pad_template_get_caps
(&gst_openh264enc_src_template));
output_state = gst_video_encoder_set_output_state (encoder, outcaps, state);
gst_video_codec_state_unref (output_state);
return gst_video_encoder_negotiate (encoder);
}
static gboolean
gst_openh264enc_propose_allocation (GstVideoEncoder * encoder, GstQuery * query)
{
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
return
GST_VIDEO_ENCODER_CLASS
(gst_openh264enc_parent_class)->propose_allocation (encoder, query);
}
static GstFlowReturn
gst_openh264enc_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame)
{
GstOpenh264Enc *openh264enc = GST_OPENH264ENC (encoder);
SSourcePicture *src_pic = NULL;
GstVideoFrame video_frame;
gboolean force_keyframe;
gint ret;
SFrameBSInfo frame_info;
gfloat fps;
GstMapInfo map;
gint i, j;
gsize buf_length = 0;
GST_OBJECT_LOCK (openh264enc);
if (openh264enc->bitrate_changed || openh264enc->max_bitrate_changed) {
SEncParamExt enc_params;
if (openh264enc->encoder->GetOption (ENCODER_OPTION_SVC_ENCODE_PARAM_EXT,
&enc_params) == cmResultSuccess) {
if (openh264enc->bitrate_changed) {
enc_params.iTargetBitrate = openh264enc->bitrate;
enc_params.sSpatialLayers[0].iSpatialBitrate =
enc_params.iTargetBitrate;
}
if (openh264enc->max_bitrate_changed) {
enc_params.iMaxBitrate = openh264enc->max_bitrate;
enc_params.sSpatialLayers[0].iMaxSpatialBitrate =
enc_params.iMaxBitrate;
}
if (openh264enc->encoder->SetOption (ENCODER_OPTION_SVC_ENCODE_PARAM_EXT,
&enc_params) != cmResultSuccess) {
GST_WARNING_OBJECT (openh264enc,
"Error changing bitrate/max bitrate, unable to set new enc_params");
}
} else {
GST_WARNING_OBJECT (openh264enc,
"Error changing bitrate/max bitrate, unable to get enc_params");
}
openh264enc->bitrate_changed = FALSE;
openh264enc->max_bitrate_changed = FALSE;
}
GST_OBJECT_UNLOCK (openh264enc);
if (frame) {
src_pic = new SSourcePicture;
if (src_pic == NULL) {
if (frame)
gst_video_codec_frame_unref (frame);
return GST_FLOW_ERROR;
}
//fill default src_pic
src_pic->iColorFormat = videoFormatI420;
src_pic->uiTimeStamp = frame->pts / GST_MSECOND;
}
openh264enc->frame_count++;
if (frame) {
if (G_UNLIKELY (openh264enc->frame_count == 1)) {
openh264enc->time_per_frame = (GST_SECOND / openh264enc->framerate);
openh264enc->previous_timestamp = frame->pts;
} else {
openh264enc->time_per_frame = (guint64)
(openh264enc->time_per_frame * 0.8 + (frame->pts -
openh264enc->previous_timestamp) * 0.2);
openh264enc->previous_timestamp = frame->pts;
if (openh264enc->frame_count % 10 == 0) {
fps = GST_SECOND / (gdouble) openh264enc->time_per_frame;
openh264enc->encoder->SetOption (ENCODER_OPTION_FRAME_RATE, &fps);
}
}
}
if (frame) {
gst_video_frame_map (&video_frame, &openh264enc->input_state->info,
frame->input_buffer, GST_MAP_READ);
src_pic->iPicWidth = GST_VIDEO_FRAME_WIDTH (&video_frame);
src_pic->iPicHeight = GST_VIDEO_FRAME_HEIGHT (&video_frame);
src_pic->iStride[0] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 0);
src_pic->iStride[1] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 1);
src_pic->iStride[2] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 2);
src_pic->pData[0] = GST_VIDEO_FRAME_COMP_DATA (&video_frame, 0);
src_pic->pData[1] = GST_VIDEO_FRAME_COMP_DATA (&video_frame, 1);
src_pic->pData[2] = GST_VIDEO_FRAME_COMP_DATA (&video_frame, 2);
force_keyframe = GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame);
if (force_keyframe) {
openh264enc->encoder->ForceIntraFrame (true);
GST_DEBUG_OBJECT (openh264enc,
"Got force key unit event, next frame coded as intra picture");
}
}
memset (&frame_info, 0, sizeof (SFrameBSInfo));
ret = openh264enc->encoder->EncodeFrame (src_pic, &frame_info);
if (ret != cmResultSuccess) {
if (frame) {
gst_video_frame_unmap (&video_frame);
gst_video_codec_frame_unref (frame);
delete src_pic;
GST_ELEMENT_ERROR (openh264enc, STREAM, ENCODE,
("Could not encode frame"), ("Openh264 returned %d", ret));
return GST_FLOW_ERROR;
} else {
return GST_FLOW_EOS;
}
}
if (videoFrameTypeSkip == frame_info.eFrameType) {
if (frame) {
gst_video_frame_unmap (&video_frame);
gst_video_encoder_finish_frame (encoder, frame);
delete src_pic;
}
return GST_FLOW_OK;
}
if (frame) {
gst_video_frame_unmap (&video_frame);
gst_video_codec_frame_unref (frame);
delete src_pic;
src_pic = NULL;
frame = NULL;
}
/* FIXME: openh264 has no way for us to get a connection
* between the input and output frames, we just have to
* guess based on the input */
frame = gst_video_encoder_get_oldest_frame (encoder);
if (!frame) {
GST_ELEMENT_ERROR (openh264enc, STREAM, ENCODE,
("Could not encode frame"), ("openh264enc returned %d", ret));
gst_video_codec_frame_unref (frame);
return GST_FLOW_ERROR;
}
if (videoFrameTypeIDR == frame_info.eFrameType) {
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
} else {
GST_VIDEO_CODEC_FRAME_UNSET_SYNC_POINT (frame);
}
for (i = 0; i < frame_info.iLayerNum; i++) {
for (j = 0; j < frame_info.sLayerInfo[i].iNalCount; j++) {
buf_length += frame_info.sLayerInfo[i].pNalLengthInByte[j];
}
}
frame->output_buffer =
gst_video_encoder_allocate_output_buffer (encoder, buf_length);
gst_buffer_map (frame->output_buffer, &map, GST_MAP_WRITE);
buf_length = 0;
for (i = 0; i < frame_info.iLayerNum; i++) {
gsize layer_size = 0;
for (j = 0; j < frame_info.sLayerInfo[i].iNalCount; j++) {
layer_size += frame_info.sLayerInfo[i].pNalLengthInByte[j];
}
memcpy (map.data + buf_length, frame_info.sLayerInfo[i].pBsBuf, layer_size);
buf_length += layer_size;
}
gst_buffer_unmap (frame->output_buffer, &map);
GST_LOG_OBJECT (openh264enc, "openh264 picture %scoded OK!",
(ret != cmResultSuccess) ? "NOT " : "");
return gst_video_encoder_finish_frame (encoder, frame);
}
static GstFlowReturn
gst_openh264enc_finish (GstVideoEncoder * encoder)
{
GstOpenh264Enc *openh264enc = GST_OPENH264ENC (encoder);
if (openh264enc->frame_count == 0)
return GST_FLOW_OK;
/* Drain encoder */
while ((gst_openh264enc_handle_frame (encoder, NULL)) == GST_FLOW_OK);
return GST_FLOW_OK;
}
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