haiku/headers/private/media/WriterPlugin.h
Stephan Aßmus 4384acf6c1 * Tweaked the Writer API. Basically, we need an Init() method that takes the
media_file_format as input, so that the Writer knows what kind of file is
  needed.
* Also, since information about the stream format is going to be needed at the
  Writer level as well, the AllocateCookie() method gets the stream
  media_format.
* Fleshed out some aspects of AVFormatWriter, many TODOs are left.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32025 a95241bf-73f2-0310-859d-f6bbb57e9c96
2009-07-31 15:29:08 +00:00

76 lines
1.8 KiB
C++

#ifndef _WRITER_PLUGIN_H
#define _WRITER_PLUGIN_H
#include <MediaTrack.h>
#include "MediaPlugin.h"
namespace BPrivate { namespace media {
class PluginManager;
class Writer {
public:
Writer();
virtual ~Writer();
virtual status_t Init(const media_file_format* fileFormat) = 0;
virtual status_t SetCopyright(const char* copyright) = 0;
virtual status_t CommitHeader() = 0;
virtual status_t Flush() = 0;
virtual status_t Close() = 0;
virtual status_t AllocateCookie(void** cookie,
const media_format* format) = 0;
virtual status_t FreeCookie(void* cookie) = 0;
virtual status_t SetCopyright(void* cookie,
const char* copyright) = 0;
virtual status_t AddTrackInfo(void* cookie, uint32 code,
const void* data, size_t size,
uint32 flags = 0) = 0;
virtual status_t WriteChunk(void* cookie,
const void* chunkBuffer, size_t chunkSize,
media_encode_info* encodeInfo) = 0;
BDataIO* Target() const;
virtual status_t Perform(perform_code code, void* data);
private:
virtual void _ReservedWriter1();
virtual void _ReservedWriter2();
virtual void _ReservedWriter3();
virtual void _ReservedWriter4();
virtual void _ReservedWriter5();
public: // XXX for test programs only
void Setup(BDataIO* target);
BDataIO* fTarget;
// needed for plug-in reference count management
friend class PluginManager;
MediaPlugin* fMediaPlugin;
uint32 fReserved[5];
};
class WriterPlugin : public virtual MediaPlugin {
public:
virtual Writer* NewWriter() = 0;
virtual status_t GetSupportedFileFormats(
const media_file_format** _fileFormats,
size_t* _count) = 0;
};
} } // namespace BPrivate::media
using namespace BPrivate::media;
#endif // _WRITER_PLUGIN_H