da87cefeb1
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5494 a95241bf-73f2-0310-859d-f6bbb57e9c96
737 lines
25 KiB
C++
737 lines
25 KiB
C++
/*******************************************************************************
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/
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/ File: MediaDefs.h
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/
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/ Description: Basic data types and defines for the Media Kit.
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/
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/ Copyright 1997-1999, Be Incorporated, All Rights Reserved
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/
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*******************************************************************************/
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#if !defined(_MEDIA_DEFS_H)
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#define _MEDIA_DEFS_H
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#include <BeBuild.h>
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#include <SupportDefs.h>
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#include <OS.h>
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#include <ByteOrder.h>
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#if defined(__cplusplus)
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#include <GraphicsDefs.h>
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#include <Looper.h>
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#endif
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#define B_MEDIA_NAME_LENGTH 64
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enum { /* maybe migrate these into Errors.h */
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B_MEDIA_SYSTEM_FAILURE = (int)B_MEDIA_ERROR_BASE+0x100, /* 80004100 */
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B_MEDIA_BAD_NODE,
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B_MEDIA_NODE_BUSY,
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B_MEDIA_BAD_FORMAT,
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B_MEDIA_BAD_BUFFER,
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B_MEDIA_TOO_MANY_NODES,
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B_MEDIA_TOO_MANY_BUFFERS,
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B_MEDIA_NODE_ALREADY_EXISTS,
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B_MEDIA_BUFFER_ALREADY_EXISTS,
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B_MEDIA_CANNOT_SEEK,
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B_MEDIA_CANNOT_CHANGE_RUN_MODE,
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B_MEDIA_APP_ALREADY_REGISTERED,
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B_MEDIA_APP_NOT_REGISTERED,
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B_MEDIA_CANNOT_RECLAIM_BUFFERS,
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B_MEDIA_BUFFERS_NOT_RECLAIMED,
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B_MEDIA_TIME_SOURCE_STOPPED,
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B_MEDIA_TIME_SOURCE_BUSY, /* 80004110 */
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B_MEDIA_BAD_SOURCE,
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B_MEDIA_BAD_DESTINATION,
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B_MEDIA_ALREADY_CONNECTED,
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B_MEDIA_NOT_CONNECTED,
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B_MEDIA_BAD_CLIP_FORMAT,
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B_MEDIA_ADDON_FAILED,
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B_MEDIA_ADDON_DISABLED,
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B_MEDIA_CHANGE_IN_PROGRESS,
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B_MEDIA_STALE_CHANGE_COUNT,
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B_MEDIA_ADDON_RESTRICTED,
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B_MEDIA_NO_HANDLER,
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B_MEDIA_DUPLICATE_FORMAT,
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B_MEDIA_REALTIME_DISABLED,
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B_MEDIA_REALTIME_UNAVAILABLE
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};
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/* Notification message 'what's */
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enum {
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// Note that BMediaNode::node_error also belongs in here! */
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B_MEDIA_WILDCARD = 'TRWC', /* used to match any notification in Start/StopWatching */
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B_MEDIA_NODE_CREATED = 'TRIA', /* "media_node_id" (multiple items) */
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B_MEDIA_NODE_DELETED, /* "media_node_id" (multiple items) */
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B_MEDIA_CONNECTION_MADE, /* "output", "input", "format" */
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B_MEDIA_CONNECTION_BROKEN, /* "source", "destination" */
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B_MEDIA_BUFFER_CREATED, /* "clone_info" -- handled by BMediaRoster */
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B_MEDIA_BUFFER_DELETED, /* "media_buffer_id" -- handled by BMediaRoster */
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B_MEDIA_TRANSPORT_STATE, /* "state", "location", "realtime" */
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B_MEDIA_PARAMETER_CHANGED, /* N "node", "parameter" */
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B_MEDIA_FORMAT_CHANGED, /* N "source", "destination", "format" */
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B_MEDIA_WEB_CHANGED, /* N "node" */
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B_MEDIA_DEFAULT_CHANGED, /* "default", "node" -- handled by BMediaRoster */
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B_MEDIA_NEW_PARAMETER_VALUE, /* N "node", "parameter", "when", "value" */
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B_MEDIA_NODE_STOPPED, /* N "node", "when" */
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B_MEDIA_FLAVORS_CHANGED /* "be:addon_id", "be:new_count", "be:gone_count" */
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};
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enum media_type {
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B_MEDIA_NO_TYPE = -1,
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B_MEDIA_UNKNOWN_TYPE = 0,
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B_MEDIA_RAW_AUDIO = 1, /* uncompressed raw_audio -- linear relationship bytes <-> samples */
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B_MEDIA_RAW_VIDEO, /* uncompressed raw_video -- linear relationship bytes <-> pixels */
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B_MEDIA_VBL, /* raw data from VBL area, 1600/line */
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B_MEDIA_TIMECODE, /* data format TBD */
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B_MEDIA_MIDI,
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B_MEDIA_TEXT, /* typically closed captioning */
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B_MEDIA_HTML,
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B_MEDIA_MULTISTREAM, /* AVI, etc */
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B_MEDIA_PARAMETERS, /* BControllable change data */
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B_MEDIA_ENCODED_AUDIO, /* dts, AC3, ... */
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B_MEDIA_ENCODED_VIDEO, /* Indeo, MPEG, ... */
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B_MEDIA_PRIVATE = 90000, /* Don't touch! */
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B_MEDIA_FIRST_USER_TYPE = 100000 /* Use something bigger than this for */
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/* experimentation with your own media forms */
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};
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enum node_kind {
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B_BUFFER_PRODUCER = 0x1,
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B_BUFFER_CONSUMER = 0x2,
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B_TIME_SOURCE = 0x4,
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B_CONTROLLABLE = 0x8,
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B_FILE_INTERFACE = 0x10,
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B_ENTITY_INTERFACE = 0x20,
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/* Set these flags for nodes that are suitable as default entities */
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B_PHYSICAL_INPUT = 0x10000,
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B_PHYSICAL_OUTPUT = 0x20000,
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B_SYSTEM_MIXER = 0x40000
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};
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enum video_orientation { /* for orientation, which pixel is first and how do we scan each "line"? */
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B_VIDEO_TOP_LEFT_RIGHT = 1, /* This is the typical progressive scan format */
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B_VIDEO_BOTTOM_LEFT_RIGHT /* This is how BMP and TGA might scan */
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};
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enum media_flags /* data */
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{
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B_MEDIA_FLAGS_VERSION = 1, /* uint32, bigger for newer */
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B_MEDIA_FLAGS_PRIVATE = 0x40000000 /* private to Be */
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};
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enum media_producer_status { /* for producer status */
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B_DATA_NOT_AVAILABLE = 1,
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B_DATA_AVAILABLE = 2,
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B_PRODUCER_STOPPED = 3
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};
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// realtime flags
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enum media_realtime_flags {
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B_MEDIA_REALTIME_ALLOCATOR = 0x1,
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B_MEDIA_REALTIME_AUDIO = 0x2,
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B_MEDIA_REALTIME_VIDEO = 0x4,
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B_MEDIA_REALTIME_ANYKIND = 0xffff
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};
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enum media_frame_flags {
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B_MEDIA_KEY_FRAME = 0x1
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};
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#define B_MEDIA_ANY_QUALITY 0.0f
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#define B_MEDIA_LOW_QUALITY 0.1f
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#define B_MEDIA_MEDIUM_QUALITY 0.5f
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#define B_MEDIA_HIGH_QUALITY 1.0f
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#if !defined(_MULTI_AUDIO_H) /* #define in protocol header */
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enum media_multi_channels {
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B_CHANNEL_LEFT = 0x1,
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B_CHANNEL_RIGHT = 0x2,
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B_CHANNEL_CENTER = 0x4, /* 5.1+ or fake surround */
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B_CHANNEL_SUB = 0x8, /* 5.1+ */
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B_CHANNEL_REARLEFT = 0x10, /* quad surround or 5.1+ */
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B_CHANNEL_REARRIGHT = 0x20, /* quad surround or 5.1+ */
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B_CHANNEL_FRONT_LEFT_CENTER = 0x40,
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B_CHANNEL_FRONT_RIGHT_CENTER = 0x80,
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B_CHANNEL_BACK_CENTER = 0x100, /* 6.1 or fake surround */
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B_CHANNEL_SIDE_LEFT = 0x200,
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B_CHANNEL_SIDE_RIGHT = 0x400,
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B_CHANNEL_TOP_CENTER = 0x800,
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B_CHANNEL_TOP_FRONT_LEFT = 0x1000,
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B_CHANNEL_TOP_FRONT_CENTER = 0x2000,
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B_CHANNEL_TOP_FRONT_RIGHT = 0x4000,
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B_CHANNEL_TOP_BACK_LEFT = 0x8000,
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B_CHANNEL_TOP_BACK_CENTER = 0x10000,
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B_CHANNEL_TOP_BACK_RIGHT = 0x20000
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};
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enum media_multi_matrix {
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B_MATRIX_PROLOGIC_LR = 0x1,
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B_MATRIX_AMBISONIC_WXYZ = 0x4
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};
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#endif
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typedef int32 media_node_id;
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typedef int32 media_buffer_id;
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typedef int32 media_addon_id;
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#if defined(__cplusplus)
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struct media_destination {
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media_destination(port_id, int32);
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media_destination(const media_destination & clone);
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media_destination & operator=(const media_destination & clone);
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media_destination();
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~media_destination();
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port_id port; /* can be different from media_node.port */
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int32 id;
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static media_destination null;
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private:
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uint32 _reserved_media_destination_[2];
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};
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struct media_source {
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media_source(port_id, int32);
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media_source(const media_source & clone);
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media_source & operator=(const media_source & clone);
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media_source();
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~media_source();
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port_id port; /* must be the same as media_node.port for owner */
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int32 id;
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static media_source null;
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private:
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uint32 _reserved_media_source_[2];
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};
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_IMPEXP_MEDIA bool operator==(const media_destination & a, const media_destination & b);
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_IMPEXP_MEDIA bool operator!=(const media_destination & a, const media_destination & b);
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_IMPEXP_MEDIA bool operator<(const media_destination & a, const media_destination & b);
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_IMPEXP_MEDIA bool operator==(const media_source & a, const media_source & b);
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_IMPEXP_MEDIA bool operator!=(const media_source & a, const media_source & b);
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_IMPEXP_MEDIA bool operator<(const media_source & a, const media_source & b);
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_IMPEXP_MEDIA bool operator==(const media_node & a, const media_node & b);
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_IMPEXP_MEDIA bool operator!=(const media_node & a, const media_node & b);
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_IMPEXP_MEDIA bool operator<(const media_node & a, const media_node & b);
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/* Buffers are low-level constructs identified by an ID. */
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/* Buffers consist of the actual data area, plus a 64-byte */
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/* header area that is different for each type. */
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/* Buffers contain typed data. Type is not part of the */
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/* buffer header; it's negotiated out-of-bounds by nodes. */
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enum {
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B_MEDIA_BIG_ENDIAN = 1,
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B_MEDIA_LITTLE_ENDIAN = 2,
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#if B_HOST_IS_BENDIAN
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B_MEDIA_HOST_ENDIAN = B_MEDIA_BIG_ENDIAN
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#else
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B_MEDIA_HOST_ENDIAN = B_MEDIA_LITTLE_ENDIAN
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#endif
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};
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struct media_multi_audio_format;
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struct media_raw_audio_format {
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enum { // for "format"
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B_AUDIO_FLOAT = 0x24, // 0 == mid, -1.0 == bottom, 1.0 == top (the preferred format for non-game audio)
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B_AUDIO_INT = 0x4, // 0 == mid, 0x80000001 == bottom, 0x7fffffff == top (all >16-bit formats, left-adjusted)
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B_AUDIO_SHORT = 0x2, // 0 == mid, -32767 == bottom, +32767 == top
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B_AUDIO_UCHAR = 0x11, // 128 == mid, 1 == bottom, 255 == top (discouraged but supported format)
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B_AUDIO_CHAR = 0x1, // 0 == mid, -127 == bottom, +127 == top (not officially supported format)
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B_AUDIO_SIZE_MASK = 0xf
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}; // we guarantee that (format&0xf) == sizeof(sample) for raw formats
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float frame_rate;
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uint32 channel_count; // 1 or 2, mostly
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uint32 format; // for compressed formats, go to media_encoded_audio_format
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uint32 byte_order; // 2 for little endian (B_MEDIA_LITTLE_ENDIAN), 1 for big endian (B_MEDIA_BIG_ENDIAN)
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size_t buffer_size; // size of each buffer
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static media_multi_audio_format wildcard;
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};
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struct media_audio_header {
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// please put actual data at the end
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int32 _reserved_[16]; // gotta have something
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};
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struct media_multi_audio_info {
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uint32 channel_mask; // bitmask
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int16 valid_bits; // if < 32, for B_AUDIO_INT
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uint16 matrix_mask; // each of these bits may mean more than one channel
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uint32 _reserved_b[3];
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};
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#if defined(__cplusplus)
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struct media_multi_audio_format : public media_raw_audio_format, public media_multi_audio_info {
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static media_multi_audio_format wildcard;
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};
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#else
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struct media_multi_audio_format {
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media_raw_audio_format raw;
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media_multi_audio_info multi;
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};
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#endif
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struct media_encoded_audio_format {
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enum audio_encoding {
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B_ANY
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};
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media_raw_audio_format output;
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audio_encoding encoding;
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float bit_rate; // BIT rate, not byte rate
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size_t frame_size;
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media_multi_audio_info multi_info;
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uint32 _reserved_[3];
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static media_encoded_audio_format wildcard;
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};
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struct media_encoded_audio_header {
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// please put actual data at the end
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int32 _reserved_0[14]; // gotta have something
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uint32 buffer_flags; // B_MEDIA_KEY_FRAME for key buffers (ADPCM etc)
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uchar unused_mask; // mask of unused bits for the last byte of data
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uchar _reserved_2[3];
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};
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enum media_display_flags {
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B_F1_DOMINANT = 0x1, // The first buffer sent (temporally) will be an F1 field
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B_F2_DOMINANT = 0x2, // The first buffer sent (temporally) will be an F2 field
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B_TOP_SCANLINE_F1 = 0x4, // The topmost scanline of the output buffer belongs to F1
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B_TOP_SCANLINE_F2 = 0x8 // The topmost scanline of the output buffer belongs to F2
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};
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struct media_video_display_info {
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color_space format;
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uint32 line_width;
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uint32 line_count; // total of all interlace fields
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uint32 bytes_per_row; // bytes_per_row is in format, not header, because it's part of SetBuffers
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uint32 pixel_offset; // (in pixels) ... These are offsets from the start of the buffer ...
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uint32 line_offset; // (in lines) ... to the start of the field. Think "buffer == framebuffer" ...
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// ... when the window displaying the active field moves on screen.
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uint32 flags;
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uint32 _reserved_[3];
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static media_video_display_info wildcard;
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};
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struct media_raw_video_format {
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float field_rate;
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uint32 interlace; // how many fields per frame -- 1 means progressive (non-interlaced)
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uint32 first_active; // 0, typically (wildcard, or "don't care")
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uint32 last_active; // line_count-1, if first_active is 0.
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uint32 orientation; // B_VIDEO_TOP_LEFT_RIGHT is preferred
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// PIXEL aspect ratio; not active area aspect ratio...
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uint16 pixel_width_aspect; // 1:1 has 1 here, 4:3 has 4 here
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uint16 pixel_height_aspect; // 1:1 has 1 here, 4:3 has 3 here
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media_video_display_info display;
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static media_raw_video_format wildcard;
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};
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struct media_video_header {
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uint32 _reserved_[12]; // at the top to push used data to the end
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float field_gamma;
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uint32 field_sequence; // sequence since start of capture -- may roll over if machine is on for a LONG time
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uint16 field_number; // 0 .. {interlace-1}; F1 == 0 ("odd"), F2 == 1 ("even")
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uint16 pulldown_number; // 0..2 for pulldown duplicated sequence
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uint16 first_active_line; // the NTSC/PAL line number (1-based) of the first line in this field
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uint16 line_count; // number of active lines in buffer
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};
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struct media_encoded_video_format {
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enum video_encoding {
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B_ANY
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};
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media_raw_video_format output; // set unknowns to wildcard
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float avg_bit_rate;
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float max_bit_rate;
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video_encoding encoding;
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size_t frame_size;
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int16 forward_history; // maximum forward memory required by algorithm
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int16 backward_history; // maximum backward memory required by algorithm
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uint32 _reserved_[3]; // can't grow more than this
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static media_encoded_video_format wildcard;
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};
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struct media_encoded_video_header {
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/* please put actual data at the end */
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int32 _reserved_1[9]; // gotta have something...
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uint32 field_flags; // B_MEDIA_KEY_FRAME
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int16 forward_history; // forward memory required by this buffer (0 for key frames)
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int16 backward_history; // backward memory required by this buffer (0 for key frames)
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uchar unused_mask; // mask of unused bits for the last byte of data
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uchar _reserved_2[3];
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float field_gamma;
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uint32 field_sequence; // sequence since start of capture
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uint16 field_number; // 0 .. {interlace-1}; F1 == 0, F2 == 1
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uint16 pulldown_number; // 0..2 for pulldown duplicated sequence
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uint16 first_active_line; // 0 or 1, typically, but could be 10 or 11 for full-NTSC formats
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uint16 line_count; // number of actual lines in buffer
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};
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struct media_multistream_format {
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enum {
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B_ANY = 0,
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B_VID = 1, // raw raw_video/raw_audio buffers
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B_AVI,
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B_MPEG1,
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B_MPEG2,
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B_QUICKTIME,
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B_PRIVATE = 90000,
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B_FIRST_USER_TYPE = 100000 // user formats >= 100000
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};
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float avg_bit_rate; // 8 * byte rate, on average
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float max_bit_rate; // 8 * byte rate, tops
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uint32 avg_chunk_size; // == max_chunk_size for fixed-size chunks
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uint32 max_chunk_size; // max buffer size
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enum {
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B_HEADER_HAS_FLAGS = 0x1, // are flags important?
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B_CLEAN_BUFFERS = 0x2, // each buffer represents an integral number of "frames"
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B_HOMOGENOUS_BUFFERS = 0x4 // a buffer has only one format in it
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};
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uint32 flags;
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int32 format;
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uint32 _reserved_[2];
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struct vid_info {
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float frame_rate;
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uint16 width;
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uint16 height;
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color_space space;
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float sampling_rate;
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uint32 sample_format;
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uint16 byte_order;
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uint16 channel_count;
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};
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struct avi_info {
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uint32 us_per_frame;
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uint16 width;
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uint16 height;
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uint16 _reserved_;
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uint16 type_count;
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media_type types[5];
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};
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union {
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vid_info vid;
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avi_info avi;
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} u;
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static media_multistream_format wildcard;
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};
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struct media_multistream_header {
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uint32 _reserved_[14];
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uchar unused_mask; // mask of unused bits for the last byte of data
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uchar _reserved_2[3];
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enum {
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B_MASTER_HEADER = 0x1, // for master stream header data in buffer
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B_SUBSTREAM_HEADER = 0x2, // for sub-stream header data in buffer
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B_COMPLETE_BUFFER = 0x4 // data is an integral number of "frames"
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};
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uint32 flags;
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|
};
|
|
|
|
extern const type_code B_CODEC_TYPE_INFO;
|
|
|
|
enum media_format_flags {
|
|
B_MEDIA_RETAINED_DATA = 0x1,
|
|
B_MEDIA_MULTIPLE_BUFFERS = 0x2,
|
|
B_MEDIA_CONTIGUOUS_BUFFER = 0x4,
|
|
B_MEDIA_LINEAR_UPDATES = 0x8,
|
|
B_MEDIA_MAUI_UNDEFINED_FLAGS = ~0xf /* always deny these */
|
|
};
|
|
|
|
/* typically, a field of 0 means "anything" or "wildcard" */
|
|
struct media_format { /* no more than 192 bytes */
|
|
media_type type;
|
|
type_code user_data_type;
|
|
uchar user_data[48];
|
|
uint32 _reserved_[3];
|
|
uint16 require_flags; // media_format_flags
|
|
uint16 deny_flags; // media_format_flags
|
|
|
|
private:
|
|
|
|
void * meta_data;
|
|
int32 meta_data_size;
|
|
area_id meta_data_area;
|
|
area_id use_area;
|
|
team_id team;
|
|
void * thisPtr;
|
|
|
|
public:
|
|
|
|
union {
|
|
media_multi_audio_format raw_audio;
|
|
media_raw_video_format raw_video;
|
|
media_multistream_format multistream;
|
|
media_encoded_audio_format encoded_audio;
|
|
media_encoded_video_format encoded_video;
|
|
char _reserved_[96]; // pad to 96 bytes
|
|
} u;
|
|
|
|
bool IsVideo() const { return (type==B_MEDIA_ENCODED_VIDEO)||(type==B_MEDIA_RAW_VIDEO); };
|
|
uint32 Width() const { return (type==B_MEDIA_ENCODED_VIDEO)?u.encoded_video.output.display.line_width:u.raw_video.display.line_width; };
|
|
uint32 Height() const { return (type==B_MEDIA_ENCODED_VIDEO)?u.encoded_video.output.display.line_count:u.raw_video.display.line_count; };
|
|
color_space ColorSpace() const { return (type==B_MEDIA_ENCODED_VIDEO)?u.encoded_video.output.display.format:u.raw_video.display.format; };
|
|
uint32 & Width() { return (type==B_MEDIA_ENCODED_VIDEO)?u.encoded_video.output.display.line_width:u.raw_video.display.line_width; };
|
|
uint32 & Height() { return (type==B_MEDIA_ENCODED_VIDEO)?u.encoded_video.output.display.line_count:u.raw_video.display.line_count; };
|
|
color_space & ColorSpace() { return (type==B_MEDIA_ENCODED_VIDEO)?u.encoded_video.output.display.format:u.raw_video.display.format; };
|
|
|
|
bool IsAudio() const { return (type==B_MEDIA_ENCODED_AUDIO)||(type==B_MEDIA_RAW_AUDIO); };
|
|
uint32 AudioFormat() const { return (type==B_MEDIA_ENCODED_AUDIO)?u.encoded_audio.output.format:u.raw_audio.format; };
|
|
uint32 & AudioFormat() { return (type==B_MEDIA_ENCODED_AUDIO)?u.encoded_audio.output.format:u.raw_audio.format; };
|
|
|
|
uint32 Encoding() const { return (type==B_MEDIA_ENCODED_VIDEO)?u.encoded_video.encoding:(type==B_MEDIA_ENCODED_AUDIO)?u.encoded_audio.encoding:(type==B_MEDIA_MULTISTREAM)?u.multistream.format:0UL; }
|
|
|
|
bool Matches(const media_format *otherFormat) const;
|
|
void SpecializeTo(const media_format *otherFormat);
|
|
|
|
status_t SetMetaData(const void *data, size_t size);
|
|
const void * MetaData() const;
|
|
int32 MetaDataSize() const;
|
|
|
|
media_format();
|
|
media_format(const media_format &other);
|
|
~media_format();
|
|
media_format & operator=(const media_format & clone);
|
|
};
|
|
|
|
_IMPEXP_MEDIA bool operator==(const media_raw_audio_format & a, const media_raw_audio_format & b);
|
|
_IMPEXP_MEDIA bool operator==(const media_multi_audio_info & a, const media_multi_audio_info & b);
|
|
_IMPEXP_MEDIA bool operator==(const media_multi_audio_format & a, const media_multi_audio_format & b);
|
|
_IMPEXP_MEDIA bool operator==(const media_encoded_audio_format & a, const media_encoded_audio_format & b);
|
|
_IMPEXP_MEDIA bool operator==(const media_video_display_info & a, const media_video_display_info & b);
|
|
_IMPEXP_MEDIA bool operator==(const media_raw_video_format & a, const media_raw_video_format & b);
|
|
_IMPEXP_MEDIA bool operator==(const media_encoded_video_format & a, const media_encoded_video_format & b);
|
|
_IMPEXP_MEDIA bool operator==(const media_multistream_format::vid_info & a, const media_multistream_format::vid_info & b);
|
|
_IMPEXP_MEDIA bool operator==(const media_multistream_format::avi_info & a, const media_multistream_format::avi_info & b);
|
|
_IMPEXP_MEDIA bool operator==(const media_multistream_format & a, const media_multistream_format & b);
|
|
_IMPEXP_MEDIA bool operator==(const media_format & a, const media_format & b);
|
|
|
|
/* return true if a and b are compatible (accounting for wildcards) */
|
|
_IMPEXP_MEDIA bool format_is_compatible(const media_format & a, const media_format & b); /* a is the format you want to feed to something accepting b */
|
|
_IMPEXP_MEDIA bool string_for_format(const media_format & f, char * buf, size_t size);
|
|
|
|
struct media_seek_tag {
|
|
char data[16];
|
|
};
|
|
|
|
struct media_header_time_code {
|
|
int8 type; // See TimeCode.h; don't use the "DEFAULT" value
|
|
int8 _reserved;
|
|
int8 hours;
|
|
int8 minutes;
|
|
int8 seconds;
|
|
int8 frames;
|
|
int16 subframes; // -1 if not available
|
|
};
|
|
|
|
struct media_header { // Broadcast() fills in fields marked with "//+"
|
|
media_type type; // what kind of data (for union)
|
|
media_buffer_id buffer; //+ what buffer does this header go with?
|
|
int32 destination; //+ what 'socket' is this intended for?
|
|
media_node_id time_source; // node that encoded start_time
|
|
uint32 _deprecated_; // used to be change_tag
|
|
uint32 size_used; // size within buffer that is used
|
|
bigtime_t start_time; // performance time
|
|
area_id owner; //+ buffer owner info area
|
|
enum {
|
|
B_SEEK_TAG = 'TRST', // user data type of the codec seek
|
|
// protocol. size of seek tag is 16 bytes
|
|
B_TIME_CODE = 'TRTC' // user data is media_header_time_code
|
|
};
|
|
type_code user_data_type;
|
|
uchar user_data[64]; // user_data_type indicates what this is
|
|
uint32 _reserved_[2];
|
|
|
|
off_t file_pos; // where in a file this data came from
|
|
size_t orig_size; // and how big it was. if unused, zero out
|
|
|
|
uint32 data_offset; // offset within buffer (already reflected in Data())
|
|
|
|
union {
|
|
media_audio_header raw_audio;
|
|
media_video_header raw_video;
|
|
media_multistream_header multistream;
|
|
media_encoded_audio_header encoded_audio;
|
|
media_encoded_video_header encoded_video;
|
|
char _reserved_[64]; // pad to 64 bytes
|
|
} u;
|
|
};
|
|
|
|
|
|
struct media_file_format_id {
|
|
ino_t node;
|
|
dev_t device;
|
|
uint32 internal_id;
|
|
};
|
|
_IMPEXP_MEDIA bool operator==(const media_file_format_id & a, const media_file_format_id & b);
|
|
_IMPEXP_MEDIA bool operator<(const media_file_format_id & a, const media_file_format_id & b);
|
|
|
|
typedef enum {
|
|
B_ANY_FORMAT_FAMILY = 0,
|
|
B_BEOS_FORMAT_FAMILY = 1,
|
|
B_QUICKTIME_FORMAT_FAMILY = 2, /* QuickTime is a registered trademark of Apple Computer */
|
|
B_AVI_FORMAT_FAMILY = 3,
|
|
B_ASF_FORMAT_FAMILY = 4,
|
|
B_MPEG_FORMAT_FAMILY = 5,
|
|
B_WAV_FORMAT_FAMILY = 6,
|
|
B_AIFF_FORMAT_FAMILY = 7,
|
|
B_AVR_FORMAT_FAMILY = 8,
|
|
B_MISC_FORMAT_FAMILY = 99999,
|
|
B_META_FORMAT_FAMILY = 100000
|
|
} media_format_family;
|
|
|
|
struct media_file_format {
|
|
enum { /* flags */
|
|
B_READABLE = 0x1,
|
|
B_WRITABLE = 0x2,
|
|
B_PERFECTLY_SEEKABLE = 0x4,
|
|
B_IMPERFECTLY_SEEKABLE = 0x8,
|
|
B_KNOWS_RAW_VIDEO = 0x10,
|
|
B_KNOWS_RAW_AUDIO = 0x20,
|
|
B_KNOWS_MIDI = 0x40,
|
|
B_KNOWS_ENCODED_VIDEO = 0x80,
|
|
B_KNOWS_ENCODED_AUDIO = 0x100,
|
|
B_KNOWS_OTHER = 0x1000000, /* clipping, text, control, ... */
|
|
B_KNOWS_ANYTHING = 0x2000000
|
|
};
|
|
uint32 capabilities; // can this format support audio, video, etc
|
|
media_file_format_id id; // opaque id used to construct a BMediaFile
|
|
media_format_family family; // one of the family enums
|
|
int32 version; // 100 for 1.0
|
|
|
|
uint32 _reserved_[25];
|
|
|
|
char mime_type[64]; // eg: "video/quicktime", "audio/aiff", etc
|
|
char pretty_name[64]; // eg: "QuickTime File Format"
|
|
char short_name[32]; // eg: "quicktime", "avi", "mpeg"
|
|
char file_extension[8]; // eg: "mov", "avi", "mpg"
|
|
char reserved[88];
|
|
};
|
|
|
|
|
|
//
|
|
// Use this function iterate through available file format writers
|
|
//
|
|
status_t get_next_file_format(int32 *cookie, media_file_format *mfi);
|
|
|
|
|
|
|
|
/* This struct is guaranteed to be large enough for any message your service */
|
|
/* thread will get for any media_node -- 16k is an upper-bound size limit. */
|
|
/* In your thread, read_port() into this struct, and call HandleMessage() on it. */
|
|
const size_t B_MEDIA_MESSAGE_SIZE = 16384;
|
|
|
|
_IMPEXP_MEDIA extern const char * B_MEDIA_SERVER_SIGNATURE;
|
|
|
|
class media_node; /* found in MediaNode.h */
|
|
struct media_input;
|
|
struct media_output;
|
|
struct live_node_info;
|
|
struct dormant_node_info;
|
|
struct buffer_clone_info;
|
|
|
|
|
|
// If you for some reason need to get rid of the media_server (and friends)
|
|
// use these functions, rather than sending messages yourself.
|
|
// The callback will be called for various stages of the process, with 100 meaning completely done
|
|
// The callback should always return TRUE for the time being.
|
|
status_t shutdown_media_server(bigtime_t timeout = B_INFINITE_TIMEOUT, bool (*progress)(int stage, const char * message, void * cookie) = NULL, void * cookie = NULL);
|
|
status_t launch_media_server(uint32 flags = 0);
|
|
|
|
// Given an image_id, prepare that image_id for realtime media
|
|
// If the kind of media indicated by "flags" is not enabled for real-time,
|
|
// B_MEDIA_REALTIME_DISABLED is returned.
|
|
// If there are not enough system resources to enable real-time performance,
|
|
// B_MEDIA_REALTIME_UNAVAILABLE is returned.
|
|
status_t media_realtime_init_image(image_id image, uint32 flags);
|
|
|
|
// Given a thread ID, and an optional indication of what the thread is
|
|
// doing in "flags", prepare the thread for real-time media performance.
|
|
// Currently, this means locking the thread stack, up to size_used bytes,
|
|
// or all of it if 0 is passed. Typically, you will not be using all
|
|
// 256 kB of the stack, so you should pass some smaller value you determine
|
|
// from profiling the thread; typically in the 32-64kB range.
|
|
// Return values are the same as for media_prepare_realtime_image().
|
|
status_t media_realtime_init_thread(thread_id thread, size_t stack_used, uint32 flags);
|
|
|
|
// A teeny bit of legacy preserved for BSoundFile from R3.
|
|
// These came from the old MediaDefs.h; don't use them
|
|
// unless you get them from BSoundFile.
|
|
|
|
/* values for byte_ordering */
|
|
enum { B_BIG_ENDIAN, B_LITTLE_ENDIAN };
|
|
|
|
/* values for sample_format */
|
|
enum {
|
|
B_UNDEFINED_SAMPLES,
|
|
B_LINEAR_SAMPLES,
|
|
B_FLOAT_SAMPLES,
|
|
B_MULAW_SAMPLES
|
|
};
|
|
|
|
|
|
/* for encoders and file writers */
|
|
|
|
struct media_encode_info {
|
|
uint32 flags; /* B_MEDIA_KEY_FRAME, set before every use */
|
|
int32 used_data_size; /* data size used by other tracks */
|
|
/* add output size used by this encoder */
|
|
bigtime_t start_time; /* us from start of file */
|
|
bigtime_t time_to_encode; /* 0 - hurry up, B_INFINITE_TIMEOUT - don't care */
|
|
int32 _pad[22];
|
|
void *file_format_data; /* file format specific info */
|
|
size_t file_format_data_size;
|
|
void *codec_data; /* codec specific info */
|
|
size_t codec_data_size;
|
|
|
|
media_encode_info();
|
|
};
|
|
|
|
struct encode_parameters {
|
|
float quality; // 0.0-1.0 , 1.0 is high quality
|
|
int32 avg_field_size; // in bytes
|
|
int32 max_field_size; // in bytes
|
|
int32 _pad[27];
|
|
void *user_data; // codec specific info
|
|
size_t user_data_size;
|
|
};
|
|
|
|
struct media_decode_info {
|
|
bigtime_t time_to_decode; /* 0 - hurry up, B_INFINITE_TIMEOUT - don't care */
|
|
int32 _pad[26];
|
|
void *file_format_data; /* file format specific info */
|
|
size_t file_format_data_size;
|
|
void *codec_data; /* codec specific info */
|
|
size_t codec_data_size;
|
|
|
|
media_decode_info();
|
|
};
|
|
|
|
|
|
#endif // __cplusplus
|
|
|
|
#endif /* MEDIA_DEFS_H */
|