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update to the codec api, docoder assignment is now handled in the server

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multiple reader add-ons are probed to recognize a media file
FormatManager does the translation from media_format to media_description


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5667 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
beveloper
2003-12-14 19:23:16 +00:00
parent 6d59046016
commit 046f31f91f
16 changed files with 757 additions and 127 deletions
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headers/private/media/DataExchange.h
+34 -5
View File
@@ -106,7 +106,9 @@ enum {
SERVER_REMOVEREFFOR,
SERVER_REMOVEITEM,
SERVER_GET_FORMAT_FOR_DESCRIPTION,
SERVER_GET_META_DESCRIPTION_FOR_FORMAT,
SERVER_GET_DESCRIPTION_FOR_FORMAT,
SERVER_GET_READERS,
SERVER_GET_DECODER_FOR_FORMAT,
SERVER_MESSAGE_END,
NODE_MESSAGE_START = 0x200,
@@ -206,7 +208,7 @@ public:
private:
dev_t device;
ino_t directory;
char name[B_FILE_NAME_LENGTH];
char name[B_FILE_NAME_LENGTH]; // == 256 bytes
};
@@ -243,6 +245,12 @@ enum
MAX_NODE_ID = 4000,
};
// used by SERVER_GET_READERS
enum
{
MAX_READERS = 40,
};
struct addonserver_instantiate_dormant_node_request : public request_data
{
media_addon_id addonid;
@@ -889,14 +897,35 @@ struct server_get_format_for_description_reply : public reply_data
media_format format;
};
struct server_get_meta_description_for_format_request : public request_data
struct server_get_description_for_format_request : public request_data
{
media_format format;
media_format_family family;
};
struct server_get_description_for_format_reply : public reply_data
{
media_format_description description;
};
struct server_get_decoder_for_format_request : public request_data
{
media_format format;
};
struct server_get_meta_description_for_format_reply : public reply_data
struct server_get_decoder_for_format_reply : public reply_data
{
media_format_description description;
xfer_entry_ref ref; // a ref to the decoder
};
struct server_get_readers_request : public request_data
{
};
struct server_get_readers_reply : public reply_data
{
xfer_entry_ref ref[MAX_READERS]; // a list of refs to the reader
int32 count;
};
struct node_request_completed_command : public command_data