src/add-ons/media/plugins/raw_decoder/RawDecoderPlugin.h

   1 /*
   2  * Copyright (c) 2003-2004, Marcus Overhagen
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without modification,
   6  * are permitted provided that the following conditions are met:
   7  *
   8  *  * Redistributions of source code must retain the above copyright notice,
   9  *    this list of conditions and the following disclaimer.
  10  *  * Redistributions in binary form must reproduce the above copyright notice,
  11  *    this list of conditions and the following disclaimer in the documentation
  12  *    and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17  * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  18  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  19  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  21  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  22  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  23  * OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25 #ifndef _RAW_DECODER_PLUGIN_H
  26 #define _RAW_DECODER_PLUGIN_H
  27
  28 #include "DecoderPlugin.h"
  29
  30 class RawDecoder : public Decoder
  31 {
  32 public:
  33         void            GetCodecInfo(media_codec_info *info);
  34
  35         status_t        Setup(media_format *ioEncodedFormat,
  36                                           const void *infoBuffer, size_t infoSize);
  37
  38         status_t        NegotiateOutputFormat(media_format *ioDecodedFormat);
  39
  40         status_t        SeekedTo(int64 frame, bigtime_t time);
  41
  42         status_t        Decode(void *buffer, int64 *frameCount,
  43                                            media_header *mediaHeader, media_decode_info *info);
  44
  45 private:
  46         status_t        NegotiateVideoOutputFormat(media_format *ioDecodedFormat);
  47         status_t        NegotiateAudioOutputFormat(media_format *ioDecodedFormat);
  48
  49 private:
  50         int32                   fFrameRate;
  51         int32                   fInputFrameSize;
  52         int32                   fOutputFrameSize;
  53         int32                   fInputSampleSize;
  54         int32                   fOutputSampleSize;
  55         int32                   fOutputBufferFrameCount;
  56         void                    (*fSwapInput)(void *data, int32 count);
  57         void                    (*fConvert)(void *dst, const void *src, int32 count);
  58         void                    (*fSwapOutput)(void *data, int32 count);
  59
  60         const void *    fChunkBuffer;
  61         size_t                  fChunkSize;
  62
  63         bigtime_t               fStartTime;
  64
  65         media_format    fInputFormat;
  66 };
  67
  68
  69 class RawDecoderPlugin : public DecoderPlugin
  70 {
  71 public:
  72         Decoder *       NewDecoder(uint index);
  73         status_t        GetSupportedFormats(media_format ** formats, size_t * count);
  74 };
  75
  76 #endif