amrdump.cpp
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:7k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include <stdio.h>
- #include "hlxclib/memory.h"
- #include "hxtypes.h"
- #include "amr_frame_info.h"
- #include "amr_frame_hdr.h"
- #ifdef _AIX
- #include "dllpath.h"
- ENABLE_MULTILOAD_DLLACCESS_PATHS(amrdump)
- #endif
- #define AMR_HEADER_READ_SIZE 32
- #define AMR_MAX_FRAME_SIZE 60
- #define AMR_NUMTYPES 16
- int main(int argc, char** argv)
- {
- if (argc != 2)
- {
- fprintf(stderr, "Usage: %s <amrfile>n", argv[0]);
- return 0;
- }
- FILE* fp = fopen(argv[1], "rb");
- if (fp)
- {
- // Read the file header
- unsigned char ucHdr[AMR_HEADER_READ_SIZE];
- fread(&ucHdr[0], 1, AMR_HEADER_READ_SIZE, fp);
- // Check what kind of header it is
- unsigned char ucMagicSingle[6] = {0x23,0x21,0x41,0x4d,0x52,0x0a};
- unsigned char ucMagicSingleWB[9] = {0x23,0x21,0x41,0x4d,0x52,0x2d,0x57,0x42,0x0a};
- unsigned char ucMagicMulti[12] = {0x23,0x21,0x41,0x4d,0x52,0x5F,0x4D,0x43,0x31,0x2E,0x30,0x0a};
- unsigned char ucMagicMultiWB[15] = {0x23,0x21,0x41,0x4d,0x52,0x2d,0x57,0x42,0x5F,0x4D,0x43,0x31,0x2E,0x30,0x0a};
- unsigned char ucNumChannelsMap[16] = {0,2,3,4,4,5,6,0,0,0,0,0,0,0,0,0};
- unsigned long ulHeaderSize = 0;
- unsigned long ulNumChannels = 0;
- unsigned long ulNextFileOffset = 0;
- bool bWideBand = false;
- bool bOK = true;
- if (!memcmp(ucHdr, ucMagicSingle, sizeof(ucMagicSingle)))
- {
- bWideBand = false;
- ulNumChannels = 1;
- ulHeaderSize = sizeof(ucMagicSingle);
- }
- else if (!memcmp(ucHdr, ucMagicSingleWB, sizeof(ucMagicSingleWB)))
- {
- bWideBand = true;
- ulNumChannels = 1;
- ulHeaderSize = sizeof(ucMagicSingleWB);
- }
- else if (!memcmp(ucHdr, ucMagicMulti, sizeof(ucMagicMulti)))
- {
- bWideBand = false;
- ulNumChannels = ucNumChannelsMap[ucHdr[sizeof(ucMagicMulti) + 3] & 0x0F];
- ulHeaderSize = sizeof(ucMagicMulti) + 4;
- }
- else if (!memcmp(ucHdr, ucMagicMultiWB, sizeof(ucMagicMultiWB)))
- {
- bWideBand = true;
- ulNumChannels = ucNumChannelsMap[ucHdr[sizeof(ucMagicMultiWB) + 3] & 0x0F];
- ulHeaderSize = sizeof(ucMagicMultiWB) + 4;
- }
- else
- {
- // This is not an AMR file
- fprintf(stderr, "%s is not an AMR file.n", argv[1]);
- bOK = false;
- }
- if (bOK)
- {
- // Print out information about the file
- fprintf(stdout, "AMR file %sn", argv[1]);
- fprintf(stdout, "tType: %sn", (bWideBand ? "Wide-band" : "Narrow-band"));
- fprintf(stdout, "tChannels: %lun", ulNumChannels);
- fprintf(stdout, "tHeaderSize: %lun", ulHeaderSize);
- // Set the next file offset
- ulNextFileOffset = ulHeaderSize;
- // Loop through, seeking to the next offset, and
- // reading a frame
- unsigned char ucFrame[AMR_MAX_FRAME_SIZE];
- // Set up some strings
- const char* pszTypeStr[AMR_NUMTYPES] = {"4.75kbps", "5.15kbps", "5.90kbps", "6.70kbps",
- "7.40kbps", "7.95kbps", "10.20kbps", "12.20kbps",
- "AMR Silence Detection",
- "GSM-EFR Silence Detection",
- "TDMA-EFR Silence Detection",
- "PDC-EFR Silence Detection",
- "Future Use", "Future Use", "Future Use",
- "No data (no transmission/reception)"};
- // Initialize a CAMRFrameHdr object
- CAMRFrameHdr cHdr(bWideBand ? WideBand : NarrowBand);
- // Initialize frame counters
- unsigned long ulTime = 0;
- unsigned long ulNumFrames = 0;
- // Loop to the end of the file
- while (!feof(fp))
- {
- // Seek to the beginning of speech frames
- fseek(fp, ulNextFileOffset, SEEK_SET);
- // Read enough to hold a frame
- int lNumBytes = fread(&ucFrame[0], 1, AMR_MAX_FRAME_SIZE, fp);
- if (lNumBytes > 0)
- {
- // Unpack the header
- unsigned char* pBuf = &ucFrame[0];
- cHdr.Unpack(pBuf);
- // Print out the information
- fprintf(stdout, "Frame %lu at offset %lu:n", ulNumFrames, ulNextFileOffset);
- fprintf(stdout, "tType: %lu (%s)n", cHdr.Type(),
- (cHdr.Type() < AMR_NUMTYPES ? pszTypeStr[cHdr.Type()] : "Unknown"));
- fprintf(stdout, "tQuality: %lun", cHdr.Quality());
- fprintf(stdout, "tBytes: %lun", cHdr.HdrBytes() + cHdr.DataBytes());
- fprintf(stdout, "tTime(ms): %lun", ulTime);
- // Advance the next file offset
- ulNextFileOffset += cHdr.HdrBytes() + cHdr.DataBytes();
- // Increment the number of frames
- ulNumFrames++;
- // Increment the duration (all AMR
- // frames are 20ms)
- ulTime += 20;
- }
- }
- }
- // Close the file
- fclose(fp);
- }
- return 0;
- }