codecs/wma.c

   1 /*****************************************************************************
   2  * wma.c
   3  *****************************************************************************
   4  * Copyright (C) 2014-2015 L-SMASH project
   5  *
   6  * Authors: Yusuke Nakamura <muken.the.vfrmaniac@gmail.com>
   7  *
   8  * Permission to use, copy, modify, and/or distribute this software for any
   9  * purpose with or without fee is hereby granted, provided that the above
  10  * copyright notice and this permission notice appear in all copies.
  11  *
  12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19  *****************************************************************************/
  20
  21 /* This file is available under an ISC license. */
  22
  23 #include "common/internal.h" /* must be placed first */
  24
  25 #include <inttypes.h>
  26
  27 #include "core/box.h"
  28
  29 #define WFEX_BOX_MIN_LENGTH 26
  30
  31 #define WAVE_FORMAT_TAG_ID_WMA_V2 0x0161
  32 #define WAVE_FORMAT_TAG_ID_WMA_V3 0x0162
  33
  34 int wma_print_codec_specific( FILE *fp, lsmash_file_t *file, isom_box_t *box, int level )
  35 {
  36     assert( fp && file && box && (box->manager & LSMASH_BINARY_CODED_BOX) );
  37     int indent = level;
  38     lsmash_ifprintf( fp, indent++, "[%s: General Extended Waveform Format Box]\n", isom_4cc2str( box->type.fourcc ) );
  39     lsmash_ifprintf( fp, indent, "position = %"PRIu64"\n", box->pos );
  40     lsmash_ifprintf( fp, indent, "size = %"PRIu64"\n", box->size );
  41     if( box->size < WFEX_BOX_MIN_LENGTH )
  42         return LSMASH_ERR_INVALID_DATA;
  43     uint8_t *data = box->binary;
  44     isom_skip_box_common( &data );
  45     uint16_t wFormatTag = LSMASH_GET_LE16( &data[0] );
  46     static const char *codec_name[] =
  47     {
  48         "Windows Media Audio V2",
  49         "Windows Media Audio V3"
  50     };
  51     if( wFormatTag == WAVE_FORMAT_TAG_ID_WMA_V2
  52      || wFormatTag == WAVE_FORMAT_TAG_ID_WMA_V3 )
  53         lsmash_ifprintf( fp, indent, "wFormatTag = 0x%04"PRIx16" (%s)\n", wFormatTag, codec_name[wFormatTag - WAVE_FORMAT_TAG_ID_WMA_V2] );
  54     else
  55         lsmash_ifprintf( fp, indent, "wFormatTag = 0x%04"PRIx16"\n", wFormatTag );
  56     lsmash_ifprintf( fp, indent, "nChannels = %"PRIu16"\n",       LSMASH_GET_LE16( &data[ 2] ) );
  57     lsmash_ifprintf( fp, indent, "nSamplesPerSec = %"PRIu32"\n",  LSMASH_GET_LE32( &data[ 4] ) );
  58     lsmash_ifprintf( fp, indent, "nAvgBytesPerSec = %"PRIu32"\n", LSMASH_GET_LE32( &data[ 8] ) );
  59     lsmash_ifprintf( fp, indent, "nBlockAlign = %"PRIu16"\n",     LSMASH_GET_LE16( &data[12] ) );
  60     lsmash_ifprintf( fp, indent, "wBitsPerSample = %"PRIu16"\n",  LSMASH_GET_LE16( &data[14] ) );
  61     uint16_t cbSize = LSMASH_GET_BYTE( &data[16] );
  62     lsmash_ifprintf( fp, indent, "cbSize = %"PRIu16"\n",           cbSize );
  63     switch( wFormatTag )
  64     {
  65         case WAVE_FORMAT_TAG_ID_WMA_V2 :
  66             if( cbSize < 10 )
  67                 return LSMASH_ERR_INVALID_DATA;
  68             lsmash_ifprintf( fp, indent, "dwSamplesPerBlock = %"PRIu32"\n",  LSMASH_GET_LE32( &data[18] ) );
  69             lsmash_ifprintf( fp, indent, "wEncodeOptions = 0x%04"PRIu16"\n", LSMASH_GET_LE16( &data[22] ) );
  70             lsmash_ifprintf( fp, indent, "dwSuperBlockAlign = %"PRIu32"\n",  LSMASH_GET_LE32( &data[24] ) );
  71             break;
  72         case WAVE_FORMAT_TAG_ID_WMA_V3 :
  73             if( cbSize < 18 )
  74                 return LSMASH_ERR_INVALID_DATA;
  75             lsmash_ifprintf( fp, indent, "wValidBitsPerSample = %"PRIu16"\n", LSMASH_GET_LE16( &data[18] ) );
  76             lsmash_ifprintf( fp, indent, "dwChannelMask = 0x%08"PRIu32"\n",   LSMASH_GET_LE32( &data[20] ) );
  77             lsmash_ifprintf( fp, indent, "dwReserved1 = 0x%08"PRIu32"\n",     LSMASH_GET_LE32( &data[24] ) );
  78             lsmash_ifprintf( fp, indent, "dwReserved2 = 0x%08"PRIu32"\n",     LSMASH_GET_LE32( &data[28] ) );
  79             lsmash_ifprintf( fp, indent, "wEncodeOptions = 0x%04"PRIu16"\n",  LSMASH_GET_LE16( &data[32] ) );
  80             lsmash_ifprintf( fp, indent, "wReserved3 = 0x%04"PRIu16"\n",      LSMASH_GET_LE16( &data[34] ) );
  81             break;
  82         default :
  83             break;
  84     }
  85     return 0;
  86 }