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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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491 lines
15 KiB
C
491 lines
15 KiB
C
/* GStreamer
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* Copyright (C) <2017> Sean DuBois <sean@siobud.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-av1enc
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*
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* AV1 Encoder.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch-1.0 videotestsrc num-buffers=50 ! av1enc ! webmmux ! filesink location=av1.webm
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* ]|
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstav1enc.h"
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#include <gst/video/video.h>
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#include <gst/video/gstvideometa.h>
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#include <gst/base/base.h>
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#define GST_AV1_ENC_APPLY_CODEC_CONTROL(av1enc, flag, value) \
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if (av1enc->encoder_inited) { \
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if (aom_codec_control (&av1enc->encoder, flag, \
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value) != AOM_CODEC_OK) { \
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gst_av1_codec_error (&av1enc->encoder, "Failed to set " #flag); \
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} \
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}
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GST_DEBUG_CATEGORY_STATIC (av1_enc_debug);
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#define GST_CAT_DEFAULT av1_enc_debug
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enum
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{
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_CPU_USED
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};
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#define PROP_CPU_USED_DEFAULT 0
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static void gst_av1_enc_finalize (GObject * object);
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static void gst_av1_enc_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_av1_enc_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static gboolean gst_av1_enc_start (GstVideoEncoder * encoder);
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static gboolean gst_av1_enc_stop (GstVideoEncoder * encoder);
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static gboolean gst_av1_enc_set_format (GstVideoEncoder * encoder,
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GstVideoCodecState * state);
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static GstFlowReturn gst_av1_enc_handle_frame (GstVideoEncoder * encoder,
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GstVideoCodecFrame * frame);
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static gboolean gst_av1_enc_propose_allocation (GstVideoEncoder * encoder,
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GstQuery * query);
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static void gst_av1_enc_destroy_encoder (GstAV1Enc * av1enc);
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#define gst_av1_enc_parent_class parent_class
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G_DEFINE_TYPE (GstAV1Enc, gst_av1_enc, GST_TYPE_VIDEO_ENCODER);
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/* *INDENT-OFF* */
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static GstStaticPadTemplate gst_av1_enc_sink_pad_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-raw, "
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"format = (string) \"I420\", "
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"framerate = (fraction) [0, MAX], "
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"width = (int) [ 4, MAX ], "
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"height = (int) [ 4, MAX ]")
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);
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/* *INDENT-ON* */
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static GstStaticPadTemplate gst_av1_enc_src_pad_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-av1")
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);
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static void
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gst_av1_enc_class_init (GstAV1EncClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *element_class;
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GstVideoEncoderClass *venc_class;
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gobject_class = (GObjectClass *) klass;
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element_class = (GstElementClass *) klass;
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venc_class = (GstVideoEncoderClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->finalize = gst_av1_enc_finalize;
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gobject_class->set_property = gst_av1_enc_set_property;
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gobject_class->get_property = gst_av1_enc_get_property;
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gst_element_class_add_static_pad_template (element_class,
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&gst_av1_enc_sink_pad_template);
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gst_element_class_add_static_pad_template (element_class,
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&gst_av1_enc_src_pad_template);
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gst_element_class_set_static_metadata (element_class, "AV1 Encoder",
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"Codec/Encoder/Video", "Encode AV1 video streams",
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"Sean DuBois <sean@siobud.com>");
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venc_class->start = gst_av1_enc_start;
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venc_class->stop = gst_av1_enc_stop;
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venc_class->set_format = gst_av1_enc_set_format;
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venc_class->handle_frame = gst_av1_enc_handle_frame;
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venc_class->propose_allocation = gst_av1_enc_propose_allocation;
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klass->codec_algo = &aom_codec_av1_cx_algo;
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GST_DEBUG_CATEGORY_INIT (av1_enc_debug, "av1enc", 0, "AV1 encoding element");
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g_object_class_install_property (gobject_class, PROP_CPU_USED,
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g_param_spec_int ("cpu-used", "CPU Used",
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"CPU Used. A Value greater than 0 will increase encoder speed at the expense of quality.",
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0, 8, PROP_CPU_USED_DEFAULT,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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}
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static void
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gst_av1_codec_error (aom_codec_ctx_t * ctx, const char *s)
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{
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const char *detail = aom_codec_error_detail (ctx);
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GST_ERROR ("%s: %s %s", s, aom_codec_error (ctx), detail ? detail : "");
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}
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static void
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gst_av1_enc_init (GstAV1Enc * av1enc)
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{
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GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_ENCODER_SINK_PAD (av1enc));
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av1enc->encoder_inited = FALSE;
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av1enc->keyframe_dist = 30;
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av1enc->cpu_used = PROP_CPU_USED_DEFAULT;
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g_mutex_init (&av1enc->encoder_lock);
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}
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static void
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gst_av1_enc_finalize (GObject * object)
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{
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GstAV1Enc *av1enc = GST_AV1_ENC (object);
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if (av1enc->input_state) {
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gst_video_codec_state_unref (av1enc->input_state);
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}
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av1enc->input_state = NULL;
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gst_av1_enc_destroy_encoder (av1enc);
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g_mutex_clear (&av1enc->encoder_lock);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_av1_enc_set_latency (GstAV1Enc * av1enc)
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{
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GstClockTime latency =
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gst_util_uint64_scale (av1enc->aom_cfg.g_lag_in_frames, 1 * GST_SECOND,
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30);
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gst_video_encoder_set_latency (GST_VIDEO_ENCODER (av1enc), latency, latency);
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GST_WARNING_OBJECT (av1enc, "Latency unimplemented");
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}
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static const gchar *
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gst_av1_enc_get_aom_rc_mode_name (enum aom_rc_mode rc_mode)
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{
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switch (rc_mode) {
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case AOM_VBR:
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return "VBR (Variable Bit Rate)";
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case AOM_CBR:
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return "CBR (Constant Bit Rate)";
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case AOM_CQ:
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return "CQ (Constrained Quality)";
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case AOM_Q:
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return "Q (Constant Quality)";
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default:
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return "<UNKNOWN>";
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}
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}
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static void
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gst_av1_enc_debug_encoder_cfg (struct aom_codec_enc_cfg *cfg)
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{
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GST_DEBUG ("g_usage : %u", cfg->g_usage);
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GST_DEBUG ("g_threads : %u", cfg->g_threads);
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GST_DEBUG ("g_profile : %u", cfg->g_profile);
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GST_DEBUG ("g_w x g_h : %u x %u", cfg->g_w, cfg->g_h);
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GST_DEBUG ("g_bit_depth : %d", cfg->g_bit_depth);
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GST_DEBUG ("g_input_bit_depth : %u", cfg->g_input_bit_depth);
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GST_DEBUG ("g_timebase : %d / %d", cfg->g_timebase.num, cfg->g_timebase.den);
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GST_DEBUG ("g_error_resilient : 0x%x", cfg->g_error_resilient);
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GST_DEBUG ("g_pass : %d", cfg->g_pass);
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GST_DEBUG ("g_lag_in_frames : %u", cfg->g_lag_in_frames);
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GST_DEBUG ("rc_dropframe_thresh : %u", cfg->rc_dropframe_thresh);
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GST_DEBUG ("rc_resize_mode : %u", cfg->rc_resize_mode);
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GST_DEBUG ("rc_resize_denominator : %u", cfg->rc_resize_denominator);
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GST_DEBUG ("rc_resize_kf_denominator : %u", cfg->rc_resize_kf_denominator);
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GST_DEBUG ("rc_superres_mode : %u", cfg->rc_superres_mode);
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GST_DEBUG ("rc_superres_denominator : %u", cfg->rc_superres_denominator);
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GST_DEBUG ("rc_superres_kf_denominator : %u",
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cfg->rc_superres_kf_denominator);
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GST_DEBUG ("rc_superres_qthresh : %u", cfg->rc_superres_qthresh);
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GST_DEBUG ("rc_superres_kf_qthresh : %u", cfg->rc_superres_kf_qthresh);
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GST_DEBUG ("rc_end_usage : %s",
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gst_av1_enc_get_aom_rc_mode_name (cfg->rc_end_usage));
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/* rc_twopass_stats_in */
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/* rc_firstpass_mb_stats_in */
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GST_DEBUG ("rc_target_bitrate : %u (kbps)", cfg->rc_target_bitrate);
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GST_DEBUG ("rc_min_quantizer : %u", cfg->rc_min_quantizer);
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GST_DEBUG ("rc_max_quantizer : %u", cfg->rc_max_quantizer);
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GST_DEBUG ("rc_undershoot_pct : %u", cfg->rc_undershoot_pct);
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GST_DEBUG ("rc_overshoot_pct : %u", cfg->rc_overshoot_pct);
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GST_DEBUG ("rc_buf_sz : %u (ms)", cfg->rc_buf_sz);
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GST_DEBUG ("rc_buf_initial_sz : %u (ms)", cfg->rc_buf_initial_sz);
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GST_DEBUG ("rc_buf_optimal_sz : %u (ms)", cfg->rc_buf_optimal_sz);
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GST_DEBUG ("rc_2pass_vbr_bias_pct : %u (%%)", cfg->rc_2pass_vbr_bias_pct);
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GST_DEBUG ("rc_2pass_vbr_minsection_pct : %u (%%)",
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cfg->rc_2pass_vbr_minsection_pct);
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GST_DEBUG ("rc_2pass_vbr_maxsection_pct : %u (%%)",
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cfg->rc_2pass_vbr_maxsection_pct);
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GST_DEBUG ("kf_mode : %u", cfg->kf_mode);
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GST_DEBUG ("kf_min_dist : %u", cfg->kf_min_dist);
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GST_DEBUG ("kf_max_dist : %u", cfg->kf_max_dist);
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GST_DEBUG ("large_scale_tile : %u", cfg->large_scale_tile);
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/* Tile-related values */
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}
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static gboolean
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gst_av1_enc_set_format (GstVideoEncoder * encoder, GstVideoCodecState * state)
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{
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GstVideoCodecState *output_state;
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GstAV1Enc *av1enc = GST_AV1_ENC_CAST (encoder);
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GstAV1EncClass *av1enc_class = GST_AV1_ENC_GET_CLASS (av1enc);
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output_state =
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gst_video_encoder_set_output_state (encoder,
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gst_pad_get_pad_template_caps (GST_VIDEO_ENCODER_SRC_PAD (encoder)),
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state);
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gst_video_codec_state_unref (output_state);
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if (av1enc->input_state) {
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gst_video_codec_state_unref (av1enc->input_state);
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}
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av1enc->input_state = gst_video_codec_state_ref (state);
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gst_av1_enc_set_latency (av1enc);
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g_mutex_lock (&av1enc->encoder_lock);
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if (aom_codec_enc_config_default (av1enc_class->codec_algo, &av1enc->aom_cfg,
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0)) {
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gst_av1_codec_error (&av1enc->encoder,
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"Failed to get default codec config.");
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return FALSE;
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}
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GST_DEBUG_OBJECT (av1enc, "Got default encoder config");
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gst_av1_enc_debug_encoder_cfg (&av1enc->aom_cfg);
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av1enc->aom_cfg.g_w = av1enc->input_state->info.width;
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av1enc->aom_cfg.g_h = av1enc->input_state->info.height;
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av1enc->aom_cfg.g_timebase.num = av1enc->input_state->info.fps_d;
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av1enc->aom_cfg.g_timebase.den = av1enc->input_state->info.fps_n;
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/* FIXME : Make configuration properties */
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av1enc->aom_cfg.rc_target_bitrate = 3000;
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av1enc->aom_cfg.g_error_resilient = AOM_ERROR_RESILIENT_DEFAULT;
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GST_DEBUG_OBJECT (av1enc, "Calling encoder init with config:");
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gst_av1_enc_debug_encoder_cfg (&av1enc->aom_cfg);
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if (aom_codec_enc_init (&av1enc->encoder, av1enc_class->codec_algo,
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&av1enc->aom_cfg, 0)) {
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gst_av1_codec_error (&av1enc->encoder, "Failed to initialize encoder");
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return FALSE;
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}
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av1enc->encoder_inited = TRUE;
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GST_AV1_ENC_APPLY_CODEC_CONTROL (av1enc, AOME_SET_CPUUSED, av1enc->cpu_used);
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g_mutex_unlock (&av1enc->encoder_lock);
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return TRUE;
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}
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static GstFlowReturn
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gst_av1_enc_process (GstAV1Enc * encoder)
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{
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aom_codec_iter_t iter = NULL;
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const aom_codec_cx_pkt_t *pkt;
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GstVideoCodecFrame *frame;
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GstVideoEncoder *video_encoder;
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GstFlowReturn ret;
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video_encoder = GST_VIDEO_ENCODER (encoder);
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while ((pkt = aom_codec_get_cx_data (&encoder->encoder, &iter)) != NULL) {
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if (pkt->kind == AOM_CODEC_STATS_PKT) {
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GST_WARNING_OBJECT (encoder, "Unhandled stats packet");
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} else if (pkt->kind == AOM_CODEC_FPMB_STATS_PKT) {
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GST_WARNING_OBJECT (encoder, "Unhandled FPMB pkt");
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} else if (pkt->kind == AOM_CODEC_PSNR_PKT) {
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GST_WARNING_OBJECT (encoder, "Unhandled PSNR packet");
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} else if (pkt->kind == AOM_CODEC_CX_FRAME_PKT) {
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frame = gst_video_encoder_get_oldest_frame (video_encoder);
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g_assert (frame != NULL);
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if ((pkt->data.frame.flags & AOM_FRAME_IS_KEY) != 0) {
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GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
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} else {
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GST_VIDEO_CODEC_FRAME_UNSET_SYNC_POINT (frame);
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}
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frame->output_buffer =
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gst_buffer_new_wrapped (g_memdup (pkt->data.frame.buf,
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pkt->data.frame.sz), pkt->data.frame.sz);
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ret = gst_video_encoder_finish_frame (video_encoder, frame);
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if (ret != GST_FLOW_OK)
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return ret;
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}
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}
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return GST_FLOW_OK;
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}
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static void
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gst_av1_enc_fill_image (GstAV1Enc * enc, GstVideoFrame * frame,
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aom_image_t * image)
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{
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image->planes[AOM_PLANE_Y] = GST_VIDEO_FRAME_COMP_DATA (frame, 0);
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image->planes[AOM_PLANE_U] = GST_VIDEO_FRAME_COMP_DATA (frame, 1);
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image->planes[AOM_PLANE_V] = GST_VIDEO_FRAME_COMP_DATA (frame, 2);
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image->stride[AOM_PLANE_Y] = GST_VIDEO_FRAME_COMP_STRIDE (frame, 0);
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image->stride[AOM_PLANE_U] = GST_VIDEO_FRAME_COMP_STRIDE (frame, 1);
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image->stride[AOM_PLANE_V] = GST_VIDEO_FRAME_COMP_STRIDE (frame, 2);
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}
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static GstFlowReturn
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gst_av1_enc_handle_frame (GstVideoEncoder * encoder, GstVideoCodecFrame * frame)
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{
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GstAV1Enc *av1enc = GST_AV1_ENC_CAST (encoder);
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aom_image_t raw;
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int flags = 0;
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GstFlowReturn ret = GST_FLOW_OK;
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GstVideoFrame vframe;
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if (!aom_img_alloc (&raw, AOM_IMG_FMT_I420, av1enc->aom_cfg.g_w,
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av1enc->aom_cfg.g_h, 1)) {
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GST_ERROR_OBJECT (encoder, "Failed to initialize encoder");
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return FALSE;
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}
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gst_video_frame_map (&vframe, &av1enc->input_state->info,
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frame->input_buffer, GST_MAP_READ);
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gst_av1_enc_fill_image (av1enc, &vframe, &raw);
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gst_video_frame_unmap (&vframe);
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if (av1enc->keyframe_dist >= 30) {
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av1enc->keyframe_dist = 0;
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flags |= AOM_EFLAG_FORCE_KF;
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}
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av1enc->keyframe_dist++;
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g_mutex_lock (&av1enc->encoder_lock);
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if (aom_codec_encode (&av1enc->encoder, &raw, frame->pts, 1, flags)
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!= AOM_CODEC_OK) {
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gst_av1_codec_error (&av1enc->encoder, "Failed to encode frame");
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ret = GST_FLOW_ERROR;
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}
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g_mutex_unlock (&av1enc->encoder_lock);
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aom_img_free (&raw);
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gst_video_codec_frame_unref (frame);
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if (ret == GST_FLOW_ERROR) {
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return ret;
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}
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return gst_av1_enc_process (av1enc);
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}
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static void
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gst_av1_enc_destroy_encoder (GstAV1Enc * av1enc)
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{
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g_mutex_lock (&av1enc->encoder_lock);
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if (av1enc->encoder_inited) {
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aom_codec_destroy (&av1enc->encoder);
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av1enc->encoder_inited = FALSE;
|
|
}
|
|
g_mutex_unlock (&av1enc->encoder_lock);
|
|
}
|
|
|
|
static gboolean
|
|
gst_av1_enc_propose_allocation (GstVideoEncoder * encoder, GstQuery * query)
|
|
{
|
|
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
|
|
|
|
return GST_VIDEO_ENCODER_CLASS (parent_class)->propose_allocation (encoder,
|
|
query);
|
|
}
|
|
|
|
static void
|
|
gst_av1_enc_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstAV1Enc *av1enc = GST_AV1_ENC_CAST (object);
|
|
|
|
GST_OBJECT_LOCK (av1enc);
|
|
|
|
g_mutex_lock (&av1enc->encoder_lock);
|
|
switch (prop_id) {
|
|
case PROP_CPU_USED:
|
|
av1enc->cpu_used = g_value_get_int (value);
|
|
GST_AV1_ENC_APPLY_CODEC_CONTROL (av1enc, AOME_SET_CPUUSED,
|
|
av1enc->cpu_used);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
g_mutex_unlock (&av1enc->encoder_lock);
|
|
|
|
GST_OBJECT_UNLOCK (av1enc);
|
|
}
|
|
|
|
static void
|
|
gst_av1_enc_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstAV1Enc *av1enc = GST_AV1_ENC_CAST (object);
|
|
|
|
GST_OBJECT_LOCK (av1enc);
|
|
|
|
switch (prop_id) {
|
|
case PROP_CPU_USED:
|
|
g_value_set_int (value, av1enc->cpu_used);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
|
|
GST_OBJECT_UNLOCK (av1enc);
|
|
}
|
|
|
|
static gboolean
|
|
gst_av1_enc_start (GstVideoEncoder * encoder)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_av1_enc_stop (GstVideoEncoder * encoder)
|
|
{
|
|
GstAV1Enc *av1enc = GST_AV1_ENC_CAST (encoder);
|
|
|
|
if (av1enc->input_state) {
|
|
gst_video_codec_state_unref (av1enc->input_state);
|
|
}
|
|
av1enc->input_state = NULL;
|
|
|
|
gst_av1_enc_destroy_encoder (av1enc);
|
|
|
|
return TRUE;
|
|
}
|