libmpdemux/aviheader.h

   1 #ifndef _aviheader_h
   2 #define _aviheader_h
   3
   4 //#include "config.h"   /* get correct definition WORDS_BIGENDIAN */
   5 #include "bswap.h"
   6
   7 /*
   8  * Some macros to swap little endian structures read from an AVI file
   9  * into machine endian format
  10  */
  11 #ifdef WORDS_BIGENDIAN
  12 #define le2me_MainAVIHeader(h) {                                        \
  13     (h)->dwMicroSecPerFrame = le2me_32((h)->dwMicroSecPerFrame);        \
  14     (h)->dwMaxBytesPerSec = le2me_32((h)->dwMaxBytesPerSec);            \
  15     (h)->dwPaddingGranularity = le2me_32((h)->dwPaddingGranularity);    \
  16     (h)->dwFlags = le2me_32((h)->dwFlags);                              \
  17     (h)->dwTotalFrames = le2me_32((h)->dwTotalFrames);                  \
  18     (h)->dwInitialFrames = le2me_32((h)->dwInitialFrames);              \
  19     (h)->dwStreams = le2me_32((h)->dwStreams);                          \
  20     (h)->dwSuggestedBufferSize = le2me_32((h)->dwSuggestedBufferSize);  \
  21     (h)->dwWidth = le2me_32((h)->dwWidth);                              \
  22     (h)->dwHeight = le2me_32((h)->dwHeight);                            \
  23 }
  24
  25 #define le2me_AVIStreamHeader(h) {                                      \
  26     (h)->fccType = le2me_32((h)->fccType);                              \
  27     (h)->fccHandler = le2me_32((h)->fccHandler);                        \
  28     (h)->dwFlags = le2me_32((h)->dwFlags);                              \
  29     (h)->wPriority = le2me_16((h)->wPriority);                          \
  30     (h)->wLanguage = le2me_16((h)->wLanguage);                          \
  31     (h)->dwInitialFrames = le2me_32((h)->dwInitialFrames);              \
  32     (h)->dwScale = le2me_32((h)->dwScale);                              \
  33     (h)->dwRate = le2me_32((h)->dwRate);                                \
  34     (h)->dwStart = le2me_32((h)->dwStart);                              \
  35     (h)->dwLength = le2me_32((h)->dwLength);                            \
  36     (h)->dwSuggestedBufferSize = le2me_32((h)->dwSuggestedBufferSize);  \
  37     (h)->dwQuality = le2me_32((h)->dwQuality);                          \
  38     (h)->dwSampleSize = le2me_32((h)->dwSampleSize);                    \
  39     le2me_RECT(&(h)->rcFrame);                                          \
  40 }
  41 #define le2me_RECT(h) {                                                 \
  42     (h)->left = le2me_16((h)->left);                                    \
  43     (h)->top = le2me_16((h)->top);                                      \
  44     (h)->right = le2me_16((h)->right);                                  \
  45     (h)->bottom = le2me_16((h)->bottom);                                \
  46 }
  47 #define le2me_BITMAPINFOHEADER(h) {                                     \
  48     (h)->biSize = le2me_32((h)->biSize);                                \
  49     (h)->biWidth = le2me_32((h)->biWidth);                              \
  50     (h)->biHeight = le2me_32((h)->biHeight);                            \
  51     (h)->biPlanes = le2me_16((h)->biPlanes);                            \
  52     (h)->biBitCount = le2me_16((h)->biBitCount);                        \
  53     (h)->biCompression = le2me_32((h)->biCompression);                  \
  54     (h)->biSizeImage = le2me_32((h)->biSizeImage);                      \
  55     (h)->biXPelsPerMeter = le2me_32((h)->biXPelsPerMeter);              \
  56     (h)->biYPelsPerMeter = le2me_32((h)->biYPelsPerMeter);              \
  57     (h)->biClrUsed = le2me_32((h)->biClrUsed);                          \
  58     (h)->biClrImportant = le2me_32((h)->biClrImportant);                \
  59 }
  60 #define le2me_WAVEFORMATEX(h) {                                         \
  61     (h)->wFormatTag = le2me_16((h)->wFormatTag);                        \
  62     (h)->nChannels = le2me_16((h)->nChannels);                          \
  63     (h)->nSamplesPerSec = le2me_32((h)->nSamplesPerSec);                \
  64     (h)->nAvgBytesPerSec = le2me_32((h)->nAvgBytesPerSec);              \
  65     (h)->nBlockAlign = le2me_16((h)->nBlockAlign);                      \
  66     (h)->wBitsPerSample = le2me_16((h)->wBitsPerSample);                \
  67     (h)->cbSize = le2me_16((h)->cbSize);                                \
  68 }
  69 #define le2me_AVIINDEXENTRY(h) {                                        \
  70     (h)->ckid = le2me_32((h)->ckid);                                    \
  71     (h)->dwFlags = le2me_32((h)->dwFlags);                              \
  72     (h)->dwChunkOffset = le2me_32((h)->dwChunkOffset);                  \
  73     (h)->dwChunkLength = le2me_32((h)->dwChunkLength);                  \
  74 }
  75 #else
  76 #define le2me_MainAVIHeader(h)      /**/
  77 #define le2me_AVIStreamHeader(h)    /**/
  78 #define le2me_RECT(h)               /**/
  79 #define le2me_BITMAPINFOHEADER(h)   /**/
  80 #define le2me_WAVEFORMATEX(h)       /**/
  81 #define le2me_AVIINDEXENTRY(h)      /**/
  82 #endif
  83
  84
  85 #endif
  86
  87
  88 typedef struct {
  89   // index stuff:
  90   void* idx;
  91   int idx_size;
  92   off_t idx_pos;
  93   off_t idx_pos_a;
  94   off_t idx_pos_v;
  95   off_t idx_offset;  // ennyit kell hozzaadni az index offset ertekekhez
  96   // bps-based PTS stuff:
  97   int video_pack_no;
  98   int audio_block_size;
  99   off_t audio_block_no;
 100   // interleaved PTS stuff:
 101   int skip_video_frames;
 102   int audio_streams;
 103   float avi_audio_pts;
 104   float avi_video_pts;
 105   float pts_correction;
 106   unsigned int pts_corr_bytes;
 107   unsigned char pts_corrected;
 108   unsigned char pts_has_video;
 109   unsigned int numberofframes;
 110 } avi_priv_t;
 111
 112 #define AVI_PRIV ((avi_priv_t*)(demuxer->priv))