Implement ISO BMFF support in Media Source.

media/mp4/fourccs.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MEDIA_MP4_FOURCCS_H_
+#define MEDIA_MP4_FOURCCS_H_
+
+#include <string>
+
+typedef uint32 FourCC;

[acolwell GONE FROM CHROMIUM, 2012/06/06 17:32:39]

How about making this an enum and putting it within the mp4 namespace?

[strobe_, 2012/06/07 16:33:54]

Done.

+
+#define FOURCC_AVC1 0x61766331
+#define FOURCC_AVCC 0x61766343
+#define FOURCC_CENC 0x63656e63
+#define FOURCC_CO64 0x636f3634
+#define FOURCC_CTTS 0x63747473
+#define FOURCC_DINF 0x64696e66
+#define FOURCC_EDTS 0x65647473
+#define FOURCC_ELST 0x656c7374
+#define FOURCC_ENCA 0x656e6361
+#define FOURCC_ENCV 0x656e6376
+#define FOURCC_ESDS 0x65736473
+#define FOURCC_FREE 0x66726565
+#define FOURCC_FRMA 0x66726d61
+#define FOURCC_FTYP 0x66747970
+#define FOURCC_HDLR 0x68646c72
+#define FOURCC_HINT 0x68696e74
+#define FOURCC_IODS 0x696f6473
+#define FOURCC_MDAT 0x6d646174
+#define FOURCC_MDHD 0x6d646864
+#define FOURCC_MDIA 0x6d646961
+#define FOURCC_MEHD 0x6d656864
+#define FOURCC_MFHD 0x6d666864
+#define FOURCC_MFRA 0x6d667261
+#define FOURCC_MINF 0x6d696e66
+#define FOURCC_MOOF 0x6d6f6f66
+#define FOURCC_MOOV 0x6d6f6f76
+#define FOURCC_MP4A 0x6d703461
+#define FOURCC_MP4V 0x6d703476
+#define FOURCC_MVEX 0x6d766578
+#define FOURCC_MVHD 0x6d766864
+#define FOURCC_PASP 0x70617370
+#define FOURCC_PSSH 0x70737368
+#define FOURCC_SAIO 0x7361696f
+#define FOURCC_SAIZ 0x7361697a
+#define FOURCC_SCHI 0x73636869
+#define FOURCC_SCHM 0x7363686d
+#define FOURCC_SDTP 0x73647470
+#define FOURCC_SIDX 0x73696478
+#define FOURCC_SINF 0x73696e66
+#define FOURCC_SKIP 0x736b6970
+#define FOURCC_SMHD 0x736d6864
+#define FOURCC_SOUN 0x736f756e
+#define FOURCC_STBL 0x7374626c
+#define FOURCC_STCO 0x7374636f
+#define FOURCC_STSC 0x73747363
+#define FOURCC_STSD 0x73747364
+#define FOURCC_STSS 0x73747373
+#define FOURCC_STSZ 0x7374737a
+#define FOURCC_STTS 0x73747473
+#define FOURCC_STYP 0x73747970
+#define FOURCC_TENC 0x74656e63
+#define FOURCC_TFDT 0x74666474
+#define FOURCC_TFHD 0x74666864
+#define FOURCC_TKHD 0x746b6864
+#define FOURCC_TRAF 0x74726166
+#define FOURCC_TRAK 0x7472616b
+#define FOURCC_TREX 0x74726578
+#define FOURCC_TRUN 0x7472756e
+#define FOURCC_UDTA 0x75647461
+#define FOURCC_UUID 0x75756964
+#define FOURCC_VIDE 0x76696465
+#define FOURCC_VMHD 0x766d6864
+#define FOURCC_WIDE 0x77696465
+
+namespace media {
+namespace mp4 {
+
+const inline std::string FourCCToString(FourCC fourcc) {
+  char buf[5];
+  buf[0] = (fourcc >> 24) & 0xff;
+  buf[1] = (fourcc >> 16) & 0xff;
+  buf[2] = (fourcc >> 8 ) & 0xff;
+  buf[3] = (fourcc      ) & 0xff;
+  buf[4] = 0;
+  return std::string(buf);
+}
+
+}
+}
+
+#endif  // MEDIA_MP4_FOURCCS_H_