142 lines
4.3 KiB
C++
142 lines
4.3 KiB
C++
/*
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* Copyright 2009-2015, Haiku Inc. All rights reserved.
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* Distributed under the terms of the MIT license.
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*/
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#ifndef _ENCODER_PLUGIN_H
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#define _ENCODER_PLUGIN_H
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#include <MediaTrack.h>
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#include <MediaFormats.h>
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#include <View.h>
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#include "MediaPlugin.h"
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namespace BPrivate { namespace media {
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class PluginManager;
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class BChunkWriter {
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public:
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virtual ~BChunkWriter() {};
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virtual status_t WriteChunk(const void* chunkBuffer,
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size_t chunkSize,
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media_encode_info* encodeInfo) = 0;
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};
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class BEncoder {
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public:
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// Some codecs may only support certain input color spaces, or output
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// color spaces, or multiple of 16 width/height... This method is needed
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// for get_next_encoder() functionality. If _acceptedInputFormat is NULL,
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// you simply return a status indicating if proposed format is acceptable.
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// If it contains wildcards for fields that you have restrictions on,
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// return an error. In that case, the user should be using the form of
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// get_next_encoder() that allows to specify the accepted format. If
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// _acceptedInputFormat is not NULL, copy the proposedFormat into
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// _acceptedInputFormat and specialize any wildcards. You must (!) also
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// change non-wildcard fields, like the video width if you want to round to
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// the nearest multiple of 16 for example. Only if the format is completely
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// unacceptable, return an error.
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virtual status_t AcceptedFormat(
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const media_format* proposedInputFormat,
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media_format* _acceptedInputFormat = NULL)
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= 0;
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// The passed media_format may not contain wildcards and must be the same
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// format that was passed to get_next_encoder() (or it must be the format
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// returned in _acceptedInputFormat).
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virtual status_t SetUp(const media_format* inputFormat) = 0;
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virtual status_t AddTrackInfo(uint32 code, const void* data,
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size_t size, uint32 flags = 0);
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// Ownership of the BView and BParameterWeb remain with the Encoder.
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// A window embedding the view must remove it before it is destroyed.
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virtual BView* ParameterView();
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virtual BParameterWeb* ParameterWeb();
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virtual status_t GetParameterValue(int32 id, void* value,
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size_t* size) const;
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virtual status_t SetParameterValue(int32 id, const void* value,
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size_t size);
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virtual status_t GetEncodeParameters(
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encode_parameters* parameters) const;
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virtual status_t SetEncodeParameters(
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encode_parameters* parameters);
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virtual status_t Encode(const void* buffer, int64 frameCount,
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media_encode_info* info) = 0;
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status_t WriteChunk(const void* chunkBuffer,
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size_t chunkSize,
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media_encode_info* encodeInfo);
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void SetChunkWriter(BChunkWriter* writer);
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virtual status_t Perform(perform_code code, void* data);
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protected:
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BEncoder();
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virtual ~BEncoder();
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private:
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BChunkWriter* fChunkWriter;
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BMediaPlugin* fMediaPlugin;
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// needed for plug-in reference count management
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friend class PluginManager;
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virtual void _ReservedEncoder1();
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virtual void _ReservedEncoder2();
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virtual void _ReservedEncoder3();
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virtual void _ReservedEncoder4();
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virtual void _ReservedEncoder5();
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virtual void _ReservedEncoder6();
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virtual void _ReservedEncoder7();
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virtual void _ReservedEncoder8();
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virtual void _ReservedEncoder9();
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virtual void _ReservedEncoder10();
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virtual void _ReservedEncoder11();
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virtual void _ReservedEncoder12();
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virtual void _ReservedEncoder13();
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virtual void _ReservedEncoder14();
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virtual void _ReservedEncoder15();
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virtual void _ReservedEncoder16();
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virtual void _ReservedEncoder17();
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virtual void _ReservedEncoder18();
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virtual void _ReservedEncoder19();
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virtual void _ReservedEncoder20();
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// FBC padding
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uint32 fReserved[20];
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};
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class BEncoderPlugin : public virtual BMediaPlugin {
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public:
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BEncoderPlugin();
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virtual BEncoder* NewEncoder(
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const media_codec_info& codecInfo) = 0;
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virtual BEncoder* NewEncoder(
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const media_format& format) = 0;
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virtual status_t RegisterNextEncoder(int32* cookie,
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media_codec_info* codecInfo,
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media_format_family* formatFamily,
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media_format* inputFormat,
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media_format* outputFormat) = 0;
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};
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} } // namespace BPrivate::media
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using namespace BPrivate::media;
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#endif // _ENCODER_PLUGIN_H
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