202 lines
6.3 KiB
C
202 lines
6.3 KiB
C
/* ASF muxer plugin for GStreamer
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* Copyright (C) 2009 Thiago Santos <thiagoss@embedded.ufcg.edu.br>
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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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#ifndef __GST_ASF_OBJECTS_H__
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#define __GST_ASF_OBJECTS_H__
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#include <glib.h>
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#include <gst/gst.h>
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#include <gst/base/gstbytereader.h>
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#include <gst/base/gstcollectpads.h>
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#define ASF_PAYLOAD_IS_KEYFRAME(pay) ((pay->stream_number & 0x80) != 0)
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#define ASF_MILI_TO_100NANO(v) (v * 10000)
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#define ASF_GUID_SIZE 16
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#define ASF_GUID_OBJSIZE_SIZE 24
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typedef struct _Guid
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{
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guint32 v1;
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guint16 v2;
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guint16 v3;
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guint64 v4;
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} Guid;
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typedef struct _GstAsfFileInfo
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{
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guint64 packets_count;
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guint32 packet_size;
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gboolean broadcast;
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} GstAsfFileInfo;
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typedef struct _GstAsfPacketInfo
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{
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guint8 err_cor_len;
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gboolean multiple_payloads;
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guint8 padd_field_type;
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guint8 packet_field_type;
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guint8 seq_field_type;
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guint32 packet_size;
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guint32 padding;
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guint32 send_time;
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guint16 duration;
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gboolean has_keyframe;
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} GstAsfPacketInfo;
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typedef struct _SimpleIndexEntry
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{
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guint32 packet_number;
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guint16 packet_count;
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} SimpleIndexEntry;
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typedef struct _AsfPayload
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{
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guint8 stream_number;
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guint8 media_obj_num;
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guint32 offset_in_media_obj;
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guint8 replicated_data_length;
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guint32 media_object_size;
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guint32 presentation_time;
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GstBuffer *data;
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GstCollectData *pad;
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/* simple index info */
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gboolean has_packet_info;
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guint32 packet_number;
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guint16 packet_count;
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} AsfPayload;
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void gst_asf_generate_file_id (Guid *guid);
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gboolean gst_byte_reader_get_asf_var_size_field (GstByteReader * reader,
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guint8 field_type, guint32 * var);
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guint32 gst_asf_read_var_size_field (guint8 * data, guint8 field_type);
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guint gst_asf_get_var_size_field_len (guint8 field_type);
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GstAsfFileInfo *gst_asf_file_info_new (void);
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void gst_asf_file_info_reset (GstAsfFileInfo * info);
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void gst_asf_file_info_free (GstAsfFileInfo * info);
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guint32 gst_asf_payload_get_size (AsfPayload * payload);
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void gst_asf_payload_free (AsfPayload * payload);
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guint64 gst_asf_get_current_time (void);
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gboolean gst_asf_match_guid (const guint8 * data, const Guid * g);
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void gst_asf_put_i32 (guint8 * buf, gint32 data);
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void gst_asf_put_time (guint8 * buf, guint64 time);
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void gst_asf_put_guid (guint8 * buf, Guid guid);
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void gst_asf_put_payload (guint8 * buf, AsfPayload * payload);
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guint16 gst_asf_put_subpayload (guint8 * buf, AsfPayload * payload,
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guint16 size);
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gboolean gst_asf_parse_packet (GstBuffer * buffer, GstAsfPacketInfo * packet,
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gboolean trust_delta_flag, guint packet_size);
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gboolean gst_asf_parse_packet_from_data (guint8 * data, gsize size, GstBuffer * buffer, GstAsfPacketInfo * packet,
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gboolean trust_delta_flag, guint packet_size);
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guint64 gst_asf_match_and_peek_obj_size (const guint8 * data,
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const Guid * guid);
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guint64 gst_asf_match_and_peek_obj_size_buf (GstBuffer * buf,
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const Guid * guid);
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gboolean gst_asf_parse_headers (GstBuffer * buffer, GstAsfFileInfo * file_info);
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gboolean gst_asf_parse_headers_from_data (guint8 * data, guint size, GstAsfFileInfo * file_info);
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/* ASF tags
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* found at http://msdn.microsoft.com/en-us/library/dd562330(VS.85).aspx
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*/
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#define ASF_TAG_TITLE "Title\0"
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#define ASF_TAG_TITLE_SORTNAME "TitleSortOrder\0"
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/* FIXME asf has no artist tag other than AlbumArtist, but it has Author
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* What to use here? */
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#define ASF_TAG_ARTIST "WM/AlbumArtist\0"
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#define ASF_TAG_ARTIST_SORTNAME "AlbumArtistSortOrder\0"
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#define ASF_TAG_ALBUM_TITLE "WM/AlbumTitle\0"
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#define ASF_TAG_ALBUM_TITLE_SORTNAME "AlbumTitleSortOrder\0"
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#define ASF_TAG_GENRE "WM/Genre\0"
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#define ASF_TAG_COMMENT "Comment\0"
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#define ASF_TAG_TRACK_NUMBER "WM/TrackNumber\0"
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#define ASF_TAG_COPYRIGHT "Copyright\0"
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#define ASF_TAG_COMPOSER "WM/Composer\0"
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const gchar *gst_asf_get_asf_tag (const gchar * gsttag);
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guint gst_asf_get_tag_field_type (GValue * value);
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gboolean gst_asf_tag_present_in_content_description (const gchar * tag);
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/* ASF Objects Sizes */
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#define ASF_HEADER_OBJECT_SIZE 30
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#define ASF_FILE_PROPERTIES_OBJECT_SIZE 104
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#define ASF_STREAM_PROPERTIES_OBJECT_SIZE 78
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#define ASF_HEADER_EXTENSION_OBJECT_SIZE 46
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#define ASF_AUDIO_SPECIFIC_DATA_SIZE 18
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#define ASF_VIDEO_SPECIFIC_DATA_SIZE 51
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#define ASF_DATA_OBJECT_SIZE 50
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#define ASF_SINGLE_PAYLOAD_HEADER_SIZE 15
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#define ASF_MULTIPLE_PAYLOAD_HEADER_SIZE 17
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#define ASF_EXTENDED_STREAM_PROPERTIES_OBJECT_SIZE 88
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#define ASF_CONTENT_DESCRIPTION_OBJECT_SIZE 34
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#define ASF_EXT_CONTENT_DESCRIPTION_OBJECT_SIZE 26
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#define ASF_SIMPLE_INDEX_OBJECT_SIZE 56
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#define ASF_SIMPLE_INDEX_ENTRY_SIZE 6
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#define ASF_METADATA_OBJECT_SIZE 26
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#define ASF_PADDING_OBJECT_SIZE 24
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/* Field types for data object payload description */
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#define ASF_FIELD_TYPE_NONE 0
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#define ASF_FIELD_TYPE_BYTE 1
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#define ASF_FIELD_TYPE_WORD 2
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#define ASF_FIELD_TYPE_DWORD 3
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#define ASF_FIELD_TYPE_MASK 3
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/* tag types */
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#define ASF_TAG_TYPE_UNICODE_STR 0
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#define ASF_TAG_TYPE_BYTES 1
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#define ASF_TAG_TYPE_BOOL 2
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#define ASF_TAG_TYPE_DWORD 3
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#define ASF_TAG_TYPE_QWORD 4
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#define ASF_TAG_TYPE_WORD 5
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/* GUID objects */
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#define ASF_HEADER_OBJECT_INDEX 0
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#define ASF_FILE_PROPERTIES_OBJECT_INDEX 1
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#define ASF_STREAM_PROPERTIES_OBJECT_INDEX 2
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#define ASF_AUDIO_MEDIA_INDEX 3
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#define ASF_NO_ERROR_CORRECTION_INDEX 4
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#define ASF_AUDIO_SPREAD_INDEX 5
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#define ASF_HEADER_EXTENSION_OBJECT_INDEX 6
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#define ASF_RESERVED_1_INDEX 7
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#define ASF_DATA_OBJECT_INDEX 8
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#define ASF_EXTENDED_STREAM_PROPERTIES_OBJECT_INDEX 9
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#define ASF_VIDEO_MEDIA_INDEX 10
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#define ASF_SIMPLE_INDEX_OBJECT_INDEX 11
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#define ASF_CONTENT_DESCRIPTION_INDEX 12
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#define ASF_EXT_CONTENT_DESCRIPTION_INDEX 13
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#define ASF_METADATA_OBJECT_INDEX 14
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#define ASF_PADDING_OBJECT_INDEX 15
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extern const Guid guids[];
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#endif
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