C++ (Cpp) ENDIAN_SWITCHの例

コード例 #1

ファイル: speex_header.c プロジェクト: moteus/mod_h323_deps

char *speex_header_to_packet(SpeexHeader *header, int *size)
{
   SpeexHeader *le_header;
   le_header = (SpeexHeader*)speex_alloc(sizeof(SpeexHeader));
   
   speex_move(le_header, header, sizeof(SpeexHeader));
   
   /*Make sure everything is now little-endian*/
   ENDIAN_SWITCH(le_header->speex_version_id);
   ENDIAN_SWITCH(le_header->header_size);
   ENDIAN_SWITCH(le_header->rate);
   ENDIAN_SWITCH(le_header->mode);
   ENDIAN_SWITCH(le_header->mode_bitstream_version);
   ENDIAN_SWITCH(le_header->nb_channels);
   ENDIAN_SWITCH(le_header->bitrate);
   ENDIAN_SWITCH(le_header->frame_size);
   ENDIAN_SWITCH(le_header->vbr);
   ENDIAN_SWITCH(le_header->frames_per_packet);
   ENDIAN_SWITCH(le_header->extra_headers);

   *size = sizeof(SpeexHeader);
   return (char *)le_header;
}

コード例 #2

ファイル: speex_header.c プロジェクト: moteus/mod_h323_deps

SpeexHeader *speex_packet_to_header(char *packet, int size)
{
   int i;
   SpeexHeader *le_header;
   const char *h = "Speex   ";
   for (i=0;i<8;i++)
      if (packet[i]!=h[i])
      {
         speex_warning ("This doesn't look like a Speex file");
         return NULL;
      }
   
   /*FIXME: Do we allow larger headers?*/
   if (size < (int)sizeof(SpeexHeader))
   {
      speex_warning("Speex header too small");
      return NULL;
   }
   
   le_header = (SpeexHeader*)speex_alloc(sizeof(SpeexHeader));
   
   speex_move(le_header, packet, sizeof(SpeexHeader));
   
   /*Make sure everything is converted correctly from little-endian*/
   ENDIAN_SWITCH(le_header->speex_version_id);
   ENDIAN_SWITCH(le_header->header_size);
   ENDIAN_SWITCH(le_header->rate);
   ENDIAN_SWITCH(le_header->mode);
   ENDIAN_SWITCH(le_header->mode_bitstream_version);
   ENDIAN_SWITCH(le_header->nb_channels);
   ENDIAN_SWITCH(le_header->bitrate);
   ENDIAN_SWITCH(le_header->frame_size);
   ENDIAN_SWITCH(le_header->vbr);
   ENDIAN_SWITCH(le_header->frames_per_packet);
   ENDIAN_SWITCH(le_header->extra_headers);

   return le_header;

}

コード例 #3

ファイル: speex_header.c プロジェクト: AirDev/linphone-android

EXPORT SpeexHeader *speex_packet_to_header(char *packet, int size)
{
   int i;
   SpeexHeader *le_header;
   const char *h = "Speex   ";
   for (i=0;i<8;i++)
      if (packet[i]!=h[i])
      {
         speex_notify("This doesn't look like a Speex file");
         return NULL;
      }
   
   /*FIXME: Do we allow larger headers?*/
   if (size < (int)sizeof(SpeexHeader))
   {
      speex_notify("Speex header too small");
      return NULL;
   }
   
   le_header = (SpeexHeader*)speex_alloc(sizeof(SpeexHeader));
   
   SPEEX_COPY(le_header, (SpeexHeader*)packet, 1);
   
   /*Make sure everything is converted correctly from little-endian*/
   ENDIAN_SWITCH(le_header->speex_version_id);
   ENDIAN_SWITCH(le_header->header_size);
   ENDIAN_SWITCH(le_header->rate);
   ENDIAN_SWITCH(le_header->mode);
   ENDIAN_SWITCH(le_header->mode_bitstream_version);
   ENDIAN_SWITCH(le_header->nb_channels);
   ENDIAN_SWITCH(le_header->bitrate);
   ENDIAN_SWITCH(le_header->frame_size);
   ENDIAN_SWITCH(le_header->vbr);
   ENDIAN_SWITCH(le_header->frames_per_packet);
   ENDIAN_SWITCH(le_header->extra_headers);

   if (le_header->mode >= SPEEX_NB_MODES || le_header->mode < 0)
   {
      speex_notify("Invalid mode specified in Speex header");
      speex_free (le_header);
      return NULL;
   }

   if (le_header->nb_channels>2)
      le_header->nb_channels = 2;
   if (le_header->nb_channels<1)
      le_header->nb_channels = 1;

   return le_header;

}