From cc2160de5cc05dc3aa77f3a34358e66f6193c8c9 Mon Sep 17 00:00:00 2001
From: Michał Cichoń <michcic@gmail.com>
Date: Tue, 26 Jun 2012 20:35:30 +0200
Subject: Add support for AAC.

---
 faad2/src/plugins/QCDMp4/utils.c | 153 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 faad2/src/plugins/QCDMp4/utils.c

(limited to 'faad2/src/plugins/QCDMp4/utils.c')

diff --git a/faad2/src/plugins/QCDMp4/utils.c b/faad2/src/plugins/QCDMp4/utils.c
new file mode 100644
index 0000000..9302de6
--- /dev/null
+++ b/faad2/src/plugins/QCDMp4/utils.c
@@ -0,0 +1,153 @@
+/*
+** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
+** Copyright (C) 2003 M. Bakker, Ahead Software AG, http://www.nero.com
+**  
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License as published by
+** the Free Software Foundation; either version 2 of the License, or
+** (at your option) any later version.
+** 
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+** 
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software 
+** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+**
+** Any non-GPL usage of this software or parts of this software is strictly
+** forbidden.
+**
+** Commercial non-GPL licensing of this software is possible.
+** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
+**
+** $Id: utils.c,v 1.3 2003/12/06 04:24:17 rjamorim Exp $
+**/
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <mp4.h>
+#include <faad.h>
+#include "utils.h"
+
+int StringComp(char const *str1, char const *str2, unsigned long len)
+{
+    signed int c1 = 0, c2 = 0;
+
+    while (len--)
+    {
+        c1 = tolower(*str1++);
+        c2 = tolower(*str2++);
+
+        if (c1 == 0 || c1 != c2)
+            break;
+    }
+
+    return c1 - c2;
+}
+
+int GetAACTrack(MP4FileHandle infile)
+{
+    /* find AAC track */
+    int i, rc;
+	int numTracks = MP4GetNumberOfTracks(infile, NULL, 0);
+
+	for (i = 0; i < numTracks; i++)
+    {
+        MP4TrackId trackId = MP4FindTrackId(infile, i, NULL, 0);
+        const char* trackType = MP4GetTrackType(infile, trackId);
+
+        if (!strcmp(trackType, MP4_AUDIO_TRACK_TYPE))
+        {
+            unsigned char *buff = NULL;
+            int buff_size = 0;
+            mp4AudioSpecificConfig mp4ASC;
+
+            MP4GetTrackESConfiguration(infile, trackId, &buff, &buff_size);
+
+            if (buff)
+            {
+                rc = AudioSpecificConfig(buff, buff_size, &mp4ASC);
+                free(buff);
+
+                if (rc < 0)
+                    return -1;
+                return trackId;
+            }
+        }
+    }
+
+    /* can't decode this */
+    return -1;
+}
+
+int GetAudioTrack(MP4FileHandle infile)
+{
+    /* find AAC track */
+    int i;
+	int numTracks = MP4GetNumberOfTracks(infile, NULL, 0);
+
+	for (i = 0; i < numTracks; i++)
+    {
+        MP4TrackId trackId = MP4FindTrackId(infile, i, NULL, 0);
+        const char* trackType = MP4GetTrackType(infile, trackId);
+
+        if (!strcmp(trackType, MP4_AUDIO_TRACK_TYPE))
+        {
+            return trackId;
+        }
+    }
+
+    /* can't decode this */
+    return -1;
+}
+
+int GetVideoTrack(MP4FileHandle infile)
+{
+    /* find AAC track */
+    int i;
+	int numTracks = MP4GetNumberOfTracks(infile, NULL, 0);
+
+	for (i = 0; i < numTracks; i++)
+    {
+        MP4TrackId trackId = MP4FindTrackId(infile, i, NULL, 0);
+        const char* trackType = MP4GetTrackType(infile, trackId);
+
+        if (!strcmp(trackType, MP4_VIDEO_TRACK_TYPE))
+        {
+            return trackId;
+        }
+    }
+
+    /* can't decode this */
+    return -1;
+}
+
+LPTSTR PathFindFileName(LPCTSTR pPath)
+{
+    LPCTSTR pT;
+
+    for (pT = pPath; *pPath; pPath = CharNext(pPath)) {
+        if ((pPath[0] == TEXT('\\') || pPath[0] == TEXT(':')) && pPath[1] && (pPath[1] != TEXT('\\')))
+            pT = pPath + 1;
+    }
+
+    return (LPTSTR)pT;   // const -> non const
+}
+
+char *convert3in4to3in3(void *sample_buffer, int samples)
+{
+    int i;
+    long *sample_buffer24 = (long*)sample_buffer;
+    char *data = malloc(samples*3*sizeof(char));
+
+    for (i = 0; i < samples; i++)
+    {
+        data[i*3] = sample_buffer24[i] & 0xFF;
+        data[i*3+1] = (sample_buffer24[i] >> 8) & 0xFF;
+        data[i*3+2] = (sample_buffer24[i] >> 16) & 0xFF;
+    }
+
+    return data;
+}
-- 
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