From 9db49a7f65af7e7eecdf2632ec6f22c73eb92c9a Mon Sep 17 00:00:00 2001 From: shatty Date: Mon, 9 Sep 2002 05:14:34 +0000 Subject: [PATCH] *** empty log message *** git-svn-id: file:///srv/svn/repos/haiku/trunk/current@998 a95241bf-73f2-0310-859d-f6bbb57e9c96 --- .../media/experimental/MediaExtractorAddOn.h | 10 +- .../media/experimental/MediaFileProducer.h | 241 ++++++++++++++++++ 2 files changed, 245 insertions(+), 6 deletions(-) create mode 100644 headers/private/media/experimental/MediaFileProducer.h diff --git a/headers/private/media/experimental/MediaExtractorAddOn.h b/headers/private/media/experimental/MediaExtractorAddOn.h index 07222eb53c..8bd3a08c2d 100644 --- a/headers/private/media/experimental/MediaExtractorAddOn.h +++ b/headers/private/media/experimental/MediaExtractorAddOn.h @@ -98,15 +98,13 @@ public: // B_OK : No error // B_NO_MEMORY : Storage for the buffer could not be allocated. // B_MEDIA_NO_HANDLER : This extractor doesn't handle that format - virtual status_t SetSource(const BDataIO * source); - virtual status_t SetSource(const BPositionIO * source) = 0; - virtual status_t SetSource(const BDataIO * source); virtual status_t SetSource(const BFile * source); + virtual status_t SetSource(const entry_ref * source, int32 flags = 0); + virtual status_t SetSource(const BDataIO * source); /* begin transcoding functions */ - virtual status_t SetDestination(const BDataIO * source); - virtual status_t SetDestination(const BPositionIO * source); - virtual status_t SetDestination(const BDataIO * source); virtual status_t SetDestination(const BFile * source); + virtual status_t SetDestination(const entry_ref * source, int32 flags = 0); + virtual status_t SetDestination(const BDataIO * source); /* end transcoding functions */ //// stateful functions diff --git a/headers/private/media/experimental/MediaFileProducer.h b/headers/private/media/experimental/MediaFileProducer.h new file mode 100644 index 0000000000..821f09aca4 --- /dev/null +++ b/headers/private/media/experimental/MediaFileProducer.h @@ -0,0 +1,241 @@ +// A MediaFileProducer is a node that +// implements FileInterface and BBufferProducer. +// it produces one output, a multistream + +#if !defined(_MEDIA_FILE_NODE_H) +#define _MEDIA_FILE_NODE_H + +#include +#include +#include +#include + +class MediaFileProducer : + public BFileInterface, + public BBufferProducer +{ +protected: +MediaFileProducer(); +virtual ~MediaFileProducer(); + +/*************************/ +/* begin from BMediaNode */ +public: + /* this port is what a media node listens to for commands */ +virtual port_id ControlPort() const; + +virtual BMediaAddOn* AddOn( + int32 * internal_id) const = 0; /* Who instantiated you -- or NULL for app class */ + +protected: + /* These don't return errors; instead, they use the global error condition reporter. */ + /* A node is required to have a queue of at least one pending command (plus TimeWarp) */ + /* and is recommended to allow for at least one pending command of each type. */ + /* Allowing an arbitrary number of outstanding commands might be nice, but apps */ + /* cannot depend on that happening. */ +virtual void Start( + bigtime_t performance_time); +virtual void Stop( + bigtime_t performance_time, + bool immediate); +virtual void Seek( + bigtime_t media_time, + bigtime_t performance_time); +virtual void SetRunMode( + run_mode mode); +virtual void TimeWarp( + bigtime_t at_real_time, + bigtime_t to_performance_time); +virtual void Preroll(); +virtual void SetTimeSource( + BTimeSource * time_source); + +public: +virtual status_t HandleMessage( + int32 message, + const void * data, + size_t size); + +protected: + /* Called when requests have completed, or failed. */ +virtual status_t RequestCompleted( /* reserved 0 */ + const media_request_info & info); + +protected: +virtual status_t DeleteHook(BMediaNode * node); /* reserved 1 */ + +virtual void NodeRegistered(); /* reserved 2 */ + +public: + + /* fill out your attributes in the provided array, returning however many you have. */ +virtual status_t GetNodeAttributes( /* reserved 3 */ + media_node_attribute * outAttributes, + size_t inMaxCount); + +virtual status_t AddTimer( + bigtime_t at_performance_time, + int32 cookie); + +/* end from BMediaNode */ +/***********************/ + +/*****************************/ +/* begin from BFileInterface */ +protected: +//included from BMediaNode +//virtual status_t HandleMessage( +// int32 message, +// const void * data, +// size_t size); + +virtual status_t GetNextFileFormat( + int32 * cookie, + media_file_format * out_format) = 0; +virtual void DisposeFileFormatCookie( + int32 cookie) = 0; + +virtual status_t GetDuration( + bigtime_t * out_time) = 0; +virtual status_t SniffRef( + const entry_ref & file, + char * out_mime_type, /* 256 bytes */ + float * out_quality) = 0; +virtual status_t SetRef( + const entry_ref & file, + bool create, + bigtime_t * out_time) = 0; +virtual status_t GetRef( + entry_ref * out_ref, + char * out_mime_type) = 0; +/* end from BFileInterface */ +/***************************/ + +/******************************/ +/* begin from BBufferProducer */ +protected: + /* functionality of BBufferProducer */ +virtual status_t FormatSuggestionRequested( + media_type type, + int32 quality, + media_format * format) = 0; +virtual status_t FormatProposal( + const media_source & output, + media_format * format) = 0; + /* If the format isn't good, put a good format into *io_format and return error */ + /* If format has wildcard, specialize to what you can do (and change). */ + /* If you can change the format, return OK. */ + /* The request comes from your destination sychronously, so you cannot ask it */ + /* whether it likes it -- you should assume it will since it asked. */ +virtual status_t FormatChangeRequested( + const media_source & source, + const media_destination & destination, + media_format * io_format, + int32 * _deprecated_) = 0; +virtual status_t GetNextOutput( /* cookie starts as 0 */ + int32 * cookie, + media_output * out_output) = 0; +virtual status_t DisposeOutputCookie( + int32 cookie) = 0; + /* In this function, you should either pass on the group to your upstream guy, */ + /* or delete your current group and hang on to this group. Deleting the previous */ + /* group (unless you passed it on with the reclaim flag set to false) is very */ + /* important, else you will 1) leak memory and 2) block someone who may want */ + /* to reclaim the buffers living in that group. */ +virtual status_t SetBufferGroup( + const media_source & for_source, + BBufferGroup * group) = 0; + /* Format of clipping is (as int16-s): . */ + /* Repeat for each line where the clipping is different from the previous line. */ + /* If is negative, use the data from line - (there are 0 pairs after */ + /* a negative . Yes, we only support 32k*32k frame buffers for clipping. */ + /* Any non-0 field of 'display' means that that field changed, and if you don't support */ + /* that change, you should return an error and ignore the request. Note that the buffer */ + /* offset values do not have wildcards; 0 (or -1, or whatever) are real values and must */ + /* be adhered to. */ +virtual status_t VideoClippingChanged( + const media_source & for_source, + int16 num_shorts, + int16 * clip_data, + const media_video_display_info & display, + int32 * _deprecated_); + /* Iterates over all outputs and maxes the latency found */ +virtual status_t GetLatency( + bigtime_t * out_lantency); +virtual status_t PrepareToConnect( + const media_source & what, + const media_destination & where, + media_format * format, + media_source * out_source, + char * out_name) = 0; +virtual void Connect( + status_t error, + const media_source & source, + const media_destination & destination, + const media_format & format, + char * io_name) = 0; +virtual void Disconnect( + const media_source & what, + const media_destination & where) = 0; +virtual void LateNoticeReceived( + const media_source & what, + bigtime_t how_much, + bigtime_t performance_time) = 0; +virtual void EnableOutput( + const media_source & what, + bool enabled, + int32 * _deprecated_) = 0; +virtual status_t SetPlayRate( + int32 numer, + int32 denom); + +virtual status_t HandleMessage( /* call this from the thread that listens to the port */ + int32 message, + const void * data, + size_t size); + +virtual void AdditionalBufferRequested( // used to be Reserved 0 + const media_source & source, + media_buffer_id prev_buffer, + bigtime_t prev_time, + const media_seek_tag * prev_tag); // may be NULL + +virtual void LatencyChanged( // used to be Reserved 1 + const media_source & source, + const media_destination & destination, + bigtime_t new_latency, + uint32 flags); + +/* end from BBufferProducer */ +/****************************/ + +private: + + MediaFileProducer( /* private unimplemented */ + const MediaFileProducer & clone); + MediaFileProducer & operator=( + const MediaFileProducer & clone); + + /* Mmmh, stuffing! */ +virtual status_t _Reserved_MediaFileProducer_0(void *); +virtual status_t _Reserved_MediaFileProducer_1(void *); +virtual status_t _Reserved_MediaFileProducer_2(void *); +virtual status_t _Reserved_MediaFileProducer_3(void *); +virtual status_t _Reserved_MediaFileProducer_4(void *); +virtual status_t _Reserved_MediaFileProducer_5(void *); +virtual status_t _Reserved_MediaFileProducer_6(void *); +virtual status_t _Reserved_MediaFileProducer_7(void *); +virtual status_t _Reserved_MediaFileProducer_8(void *); +virtual status_t _Reserved_MediaFileProducer_9(void *); +virtual status_t _Reserved_MediaFileProducer_10(void *); +virtual status_t _Reserved_MediaFileProducer_11(void *); +virtual status_t _Reserved_MediaFileProducer_12(void *); +virtual status_t _Reserved_MediaFileProducer_13(void *); +virtual status_t _Reserved_MediaFileProducer_14(void *); +virtual status_t _Reserved_MediaFileProducer_15(void *); + + uint32 _reserved_media_file_node_[16]; + +}; + +#endif /* _MEDIA_FILE_NODE_H */