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