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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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2dded0fceb
Following the ed4d08189ea6e19a50e029e60da52d3583c39fbb commit, this one fixes rtpasfpay to use packet length as the payloaded data length, but also accepting it as the full packet size for compatibility with other implementations due to the lack of clarity of the spec in this part.
196 lines
5.9 KiB
C
196 lines
5.9 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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, 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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Guid gst_asf_generate_file_id (void);
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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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guint64 gst_asf_match_and_peek_obj_size (const guint8 * data,
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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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/* 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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