/* * Copyright (C) 2017 Collabora Inc. * Author: Nicolas Dufresne * * 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 #include #include #include #include #include "gstv4l2object.h" #include "gstv4l2mpeg4enc.h" #include #include GST_DEBUG_CATEGORY_STATIC (gst_v4l2_mpeg4_enc_debug); #define GST_CAT_DEFAULT gst_v4l2_mpeg4_enc_debug static GstStaticCaps src_template_caps = GST_STATIC_CAPS ("video/mpeg, mpegversion=(int)4, systemstream=(boolean)FALSE"); enum { PROP_0, V4L2_STD_OBJECT_PROPS, /* TODO */ }; #define gst_v4l2_mpeg4_enc_parent_class parent_class G_DEFINE_TYPE (GstV4l2Mpeg4Enc, gst_v4l2_mpeg4_enc, GST_TYPE_V4L2_VIDEO_ENC); static void gst_v4l2_mpeg4_enc_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { /* TODO */ } static void gst_v4l2_mpeg4_enc_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { /* TODO */ } static gint v4l2_profile_from_string (const gchar * profile) { gint v4l2_profile = -1; if (g_str_equal (profile, "simple")) v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE; else if (g_str_equal (profile, "advanced-simple")) v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE; else if (g_str_equal (profile, "core")) v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_CORE; else if (g_str_equal (profile, "simple-scalable")) v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE_SCALABLE; else if (g_str_equal (profile, "advanced-coding-efficiency")) v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY; else GST_WARNING ("Unsupported profile string '%s'", profile); return v4l2_profile; } static const gchar * v4l2_profile_to_string (gint v4l2_profile) { switch (v4l2_profile) { case V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE: return "simple"; case V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE: return "advanced-simple"; case V4L2_MPEG_VIDEO_MPEG4_PROFILE_CORE: return "core"; case V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE_SCALABLE: return "simple-scalable"; case V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY: return "advanced-coding-efficiency"; default: GST_WARNING ("Unsupported V4L2 profile %i", v4l2_profile); break; } return NULL; } static gint v4l2_level_from_string (const gchar * level) { gint v4l2_level = -1; if (g_str_equal (level, "0")) v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_0; else if (g_str_equal (level, "0b")) v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_0B; else if (g_str_equal (level, "1")) v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_1; else if (g_str_equal (level, "2")) v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_2; else if (g_str_equal (level, "3")) v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_3; else if (g_str_equal (level, "3b")) v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_3B; else if (g_str_equal (level, "4")) v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_4; else if (g_str_equal (level, "5")) v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_5; else GST_WARNING ("Unsupported level '%s'", level); return v4l2_level; } static const gchar * v4l2_level_to_string (gint v4l2_level) { switch (v4l2_level) { case V4L2_MPEG_VIDEO_MPEG4_LEVEL_0: return "0"; case V4L2_MPEG_VIDEO_MPEG4_LEVEL_0B: return "0b"; case V4L2_MPEG_VIDEO_MPEG4_LEVEL_1: return "1"; case V4L2_MPEG_VIDEO_MPEG4_LEVEL_2: return "2"; case V4L2_MPEG_VIDEO_MPEG4_LEVEL_3: return "3"; case V4L2_MPEG_VIDEO_MPEG4_LEVEL_3B: return "3b"; case V4L2_MPEG_VIDEO_MPEG4_LEVEL_4: return "4"; case V4L2_MPEG_VIDEO_MPEG4_LEVEL_5: return "5"; default: GST_WARNING ("Unsupported V4L2 level %i", v4l2_level); break; } return NULL; } static void gst_v4l2_mpeg4_enc_init (GstV4l2Mpeg4Enc * self) { } static void gst_v4l2_mpeg4_enc_class_init (GstV4l2Mpeg4EncClass * klass) { GstElementClass *element_class; GObjectClass *gobject_class; GstV4l2VideoEncClass *baseclass; parent_class = g_type_class_peek_parent (klass); element_class = (GstElementClass *) klass; gobject_class = (GObjectClass *) klass; baseclass = (GstV4l2VideoEncClass *) (klass); GST_DEBUG_CATEGORY_INIT (gst_v4l2_mpeg4_enc_debug, "v4l2mpeg4enc", 0, "V4L2 MPEG4 Encoder"); gst_element_class_set_static_metadata (element_class, "V4L2 MPEG4 Encoder", "Codec/Encoder/Video", "Encode MPEG4 video streams via V4L2 API", "Nicolas Dufresne set_property = GST_DEBUG_FUNCPTR (gst_v4l2_mpeg4_enc_set_property); gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_v4l2_mpeg4_enc_get_property); baseclass->codec_name = "MPEG4"; baseclass->profile_cid = V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE; baseclass->profile_to_string = v4l2_profile_to_string; baseclass->profile_from_string = v4l2_profile_from_string; baseclass->level_cid = V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL; baseclass->level_to_string = v4l2_level_to_string; baseclass->level_from_string = v4l2_level_from_string; } /* Probing functions */ gboolean gst_v4l2_is_mpeg4_enc (GstCaps * sink_caps, GstCaps * src_caps) { return gst_v4l2_is_video_enc (sink_caps, src_caps, gst_static_caps_get (&src_template_caps)); } void gst_v4l2_mpeg4_enc_register (GstPlugin * plugin, const gchar * basename, const gchar * device_path, GstCaps * sink_caps, GstCaps * src_caps) { gst_v4l2_video_enc_register (plugin, GST_TYPE_V4L2_MPEG4_ENC, "mpeg4", basename, device_path, sink_caps, gst_static_caps_get (&src_template_caps), src_caps); }