| /* | |
| * GStreamer | |
| * Copyright (C) 2022 Matthew Waters <matthew@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. | |
| */ | |
| #include <gst/gst.h> | |
| #include <gst/video/video.h> | |
| #ifndef __CCUTILS_H__ | |
| #define __CCUTILS_H__ | |
| G_BEGIN_DECLS | |
| GST_DEBUG_CATEGORY_EXTERN(ccutils_debug_cat); | |
| struct cdp_fps_entry | |
| { | |
| guint8 fps_idx; /* value stored in cdp */ | |
| guint fps_n, fps_d; | |
| guint max_cc_count; | |
| guint max_ccp_count; | |
| guint max_cea608_count; | |
| }; | |
| G_GNUC_INTERNAL | |
| const struct cdp_fps_entry * cdp_fps_entry_from_fps (guint fps_n, guint fps_d); | |
| G_GNUC_INTERNAL | |
| const struct cdp_fps_entry * cdp_fps_entry_from_id (guint8 id); | |
| extern const struct cdp_fps_entry null_fps_entry; | |
| typedef enum { | |
| GST_CC_CDP_MODE_TIME_CODE = (1<<0), | |
| GST_CC_CDP_MODE_CC_DATA = (1<<1), | |
| GST_CC_CDP_MODE_CC_SVC_INFO = (1<<2) | |
| } GstCCCDPMode; | |
| G_GNUC_INTERNAL | |
| guint convert_cea708_cc_data_to_cdp (GstObject * dbg_obj, | |
| GstCCCDPMode cdp_mode, | |
| guint16 cdp_hdr_sequence_cntr, | |
| const guint8 * cc_data, | |
| guint cc_data_len, | |
| guint8 * cdp, | |
| guint cdp_len, | |
| const GstVideoTimeCode * tc, | |
| const struct cdp_fps_entry *fps_entry); | |
| G_GNUC_INTERNAL | |
| guint convert_cea708_cdp_to_cc_data (GstObject * dbg_obj, | |
| const guint8 * cdp, | |
| guint cdp_len, | |
| guint8 *cc_data, | |
| GstVideoTimeCode * tc, | |
| const struct cdp_fps_entry **out_fps_entry); | |
| G_GNUC_INTERNAL | |
| gint drop_ccp_from_cc_data (guint8 * cc_data, | |
| guint cc_data_len); | |
| #define MAX_CDP_PACKET_LEN 256 | |
| #define MAX_CEA608_LEN 32 | |
| G_DECLARE_FINAL_TYPE (CCBuffer, cc_buffer, GST, CC_BUFFER, GObject); | |
| G_GNUC_INTERNAL | |
| CCBuffer * cc_buffer_new (void); | |
| G_GNUC_INTERNAL | |
| void cc_buffer_get_stored_size (CCBuffer * buf, | |
| guint * cea608_1_len, | |
| guint * cea608_2_len, | |
| guint * cc_data_len); | |
| G_GNUC_INTERNAL | |
| gboolean cc_buffer_push_separated (CCBuffer * buf, | |
| const guint8 * cea608_1, | |
| guint cea608_1_len, | |
| const guint8 * cea608_2, | |
| guint cea608_2_len, | |
| const guint8 * cc_data, | |
| guint cc_data_len); | |
| G_GNUC_INTERNAL | |
| gboolean cc_buffer_push_cc_data (CCBuffer * buf, | |
| const guint8 * cc_data, | |
| guint cc_data_len); | |
| G_GNUC_INTERNAL | |
| void cc_buffer_take_cc_data (CCBuffer * buf, | |
| const struct cdp_fps_entry * fps_entry, | |
| gboolean nul_padding, | |
| guint8 * cc_data, | |
| guint * cc_data_len); | |
| G_GNUC_INTERNAL | |
| void cc_buffer_take_separated (CCBuffer * buf, | |
| const struct cdp_fps_entry * fps_entry, | |
| guint8 * cea608_1, | |
| guint * cea608_1_len, | |
| guint8 * cea608_2, | |
| guint * cea608_2_len, | |
| guint8 * cc_data, | |
| guint * cc_data_len); | |
| G_GNUC_INTERNAL | |
| void cc_buffer_take_cea608_field1 (CCBuffer * buf, | |
| const struct cdp_fps_entry * fps_entry, | |
| guint8 * cea608_1, | |
| guint * cea608_1_len); | |
| G_GNUC_INTERNAL | |
| void cc_buffer_take_cea608_field2 (CCBuffer * buf, | |
| const struct cdp_fps_entry * fps_entry, | |
| guint8 * cea608_2, | |
| guint * cea608_2_len); | |
| G_GNUC_INTERNAL | |
| gboolean cc_buffer_is_empty (CCBuffer * buf); | |
| G_GNUC_INTERNAL | |
| void cc_buffer_discard (CCBuffer * buf); | |
| G_GNUC_INTERNAL | |
| void cc_buffer_set_max_buffer_time (CCBuffer * buf, | |
| GstClockTime max_time); | |
| G_GNUC_INTERNAL | |
| void cc_buffer_set_output_padding (CCBuffer * buf, | |
| gboolean output_padding, | |
| gboolean output_ccp_padding); | |
| G_END_DECLS | |
| #endif |