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206 lines
6.4 KiB
C
206 lines
6.4 KiB
C
/* GStreamer Intel MSDK plugin
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* Copyright (c) 2016, Oblong Industries, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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 "gstmsdkmpeg2enc.h"
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GST_DEBUG_CATEGORY_EXTERN (gst_msdkmpeg2enc_debug);
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#define GST_CAT_DEFAULT gst_msdkmpeg2enc_debug
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static GstStaticPadTemplate src_factory = 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/mpeg, "
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"framerate = (fraction) [0/1, MAX], "
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"width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], "
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"mpegversion = (int) 2 , systemstream = (bool) false, "
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"profile = (string) { high, main, simple }")
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);
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#define gst_msdkmpeg2enc_parent_class parent_class
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G_DEFINE_TYPE (GstMsdkMPEG2Enc, gst_msdkmpeg2enc, GST_TYPE_MSDKENC);
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static gboolean
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gst_msdkmpeg2enc_set_format (GstMsdkEnc * encoder)
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{
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GstMsdkMPEG2Enc *thiz = GST_MSDKMPEG2ENC (encoder);
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GstCaps *template_caps;
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GstCaps *allowed_caps = NULL;
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thiz->profile = 0;
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template_caps = gst_static_pad_template_get_caps (&src_factory);
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allowed_caps = gst_pad_get_allowed_caps (GST_VIDEO_ENCODER_SRC_PAD (encoder));
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/* If downstream has ANY caps let encoder decide profile and level */
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if (allowed_caps == template_caps) {
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GST_INFO_OBJECT (thiz,
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"downstream has ANY caps, profile/level set to auto");
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} else if (allowed_caps) {
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GstStructure *s;
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const gchar *profile;
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if (gst_caps_is_empty (allowed_caps)) {
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gst_caps_unref (allowed_caps);
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gst_caps_unref (template_caps);
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return FALSE;
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}
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allowed_caps = gst_caps_make_writable (allowed_caps);
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allowed_caps = gst_caps_fixate (allowed_caps);
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s = gst_caps_get_structure (allowed_caps, 0);
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profile = gst_structure_get_string (s, "profile");
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if (profile) {
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if (!strcmp (profile, "high")) {
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thiz->profile = MFX_PROFILE_MPEG2_HIGH;
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} else if (!strcmp (profile, "main")) {
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thiz->profile = MFX_PROFILE_MPEG2_MAIN;
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} else if (!strcmp (profile, "simple")) {
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thiz->profile = MFX_PROFILE_MPEG2_SIMPLE;
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} else {
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g_assert_not_reached ();
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}
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}
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gst_caps_unref (allowed_caps);
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}
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gst_caps_unref (template_caps);
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return TRUE;
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}
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static gboolean
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gst_msdkmpeg2enc_configure (GstMsdkEnc * encoder)
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{
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GstMsdkMPEG2Enc *thiz = GST_MSDKMPEG2ENC (encoder);
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encoder->param.mfx.CodecId = MFX_CODEC_MPEG2;
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encoder->param.mfx.CodecProfile = thiz->profile;
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encoder->param.mfx.CodecLevel = 0;
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/* Enable Extended Coding options */
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gst_msdkenc_ensure_extended_coding_options (encoder);
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return TRUE;
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}
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static inline const gchar *
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profile_to_string (gint profile)
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{
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switch (profile) {
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case MFX_PROFILE_MPEG2_HIGH:
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return "high";
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case MFX_PROFILE_MPEG2_MAIN:
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return "main";
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case MFX_PROFILE_MPEG2_SIMPLE:
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return "simple";
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default:
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break;
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}
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return NULL;
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}
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static GstCaps *
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gst_msdkmpeg2enc_set_src_caps (GstMsdkEnc * encoder)
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{
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GstCaps *caps;
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GstStructure *structure;
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const gchar *profile;
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caps = gst_caps_from_string ("video/mpeg, mpegversion=2, systemstream=false");
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structure = gst_caps_get_structure (caps, 0);
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profile = profile_to_string (encoder->param.mfx.CodecProfile);
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if (profile)
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gst_structure_set (structure, "profile", G_TYPE_STRING, profile, NULL);
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return caps;
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}
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static void
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gst_msdkmpeg2enc_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstMsdkMPEG2Enc *thiz = GST_MSDKMPEG2ENC (object);
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if (!gst_msdkenc_set_common_property (object, prop_id, value, pspec))
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GST_WARNING_OBJECT (thiz, "Failed to set common encode property");
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}
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static void
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gst_msdkmpeg2enc_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstMsdkMPEG2Enc *thiz = GST_MSDKMPEG2ENC (object);
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if (!gst_msdkenc_get_common_property (object, prop_id, value, pspec))
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GST_WARNING_OBJECT (thiz, "Failed to get common encode property");
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}
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static void
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gst_msdkmpeg2enc_class_init (GstMsdkMPEG2EncClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *element_class;
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GstMsdkEncClass *encoder_class;
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gobject_class = G_OBJECT_CLASS (klass);
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element_class = GST_ELEMENT_CLASS (klass);
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encoder_class = GST_MSDKENC_CLASS (klass);
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gobject_class->set_property = gst_msdkmpeg2enc_set_property;
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gobject_class->get_property = gst_msdkmpeg2enc_get_property;
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encoder_class->set_format = gst_msdkmpeg2enc_set_format;
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encoder_class->configure = gst_msdkmpeg2enc_configure;
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encoder_class->set_src_caps = gst_msdkmpeg2enc_set_src_caps;
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gst_msdkenc_install_common_properties (encoder_class);
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gst_element_class_set_static_metadata (element_class,
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"Intel MSDK MPEG2 encoder",
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"Codec/Encoder/Video/Hardware",
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"MPEG2 video encoder based on Intel Media SDK",
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"Josep Torra <jtorra@oblong.com>");
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gst_element_class_add_static_pad_template (element_class, &src_factory);
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}
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static void
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gst_msdkmpeg2enc_init (GstMsdkMPEG2Enc * thiz)
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{
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}
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