[MPlayer-dev-eng] [PATCH] Support for MPEG2 video in MP4 files

[Moritz Bunkus]

Hey,

updated version with comments for the #defines and support for MPEG-1 (I
don't have a sample for MPEG-1, only for MPEG-2).

Mosu

-- 
If Darl McBride was in charge, he'd probably make marriage
unconstitutional too, since clearly it de-emphasizes the commercial
nature of normal human interaction, and probably is a major impediment
to the commercial growth of prostitution. - Linus Torvalds
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Index: libmpdemux/parse_mp4.h
===================================================================
RCS file: /cvsroot/mplayer/main/libmpdemux/parse_mp4.h,v
retrieving revision 1.2
diff -u -u -r1.2 parse_mp4.h
--- libmpdemux/parse_mp4.h	24 Mar 2002 06:10:13 -0000	1.2
+++ libmpdemux/parse_mp4.h	12 Nov 2004 08:17:26 -0000
@@ -30,6 +30,36 @@
 #define MP4ExtDescrTagsStart		0x80 
 #define MP4ExtDescrTagsEnd		0xFE 
 
+/* object type identifiers in the ESDS */
+/* See http://gpac.sourceforge.net/tutorial/mediatypes.htm */
+/* BIFS stream version 1 */
+#define MP4OTI_MPEG4Systems1                                0x01
+/* BIFS stream version 2 */
+#define MP4OTI_MPEG4Systems2                                0x02
+/* MPEG-4 visual stream */
+#define MP4OTI_MPEG4Visual                                  0x20
+/* MPEG-4 audio stream */
+#define MP4OTI_MPEG4Audio                                   0x40
+/* MPEG-2 visual streams with various profiles */
+#define MP4OTI_MPEG2VisualSimple                            0x60
+#define MP4OTI_MPEG2VisualMain                              0x61
+#define MP4OTI_MPEG2VisualSNR                               0x62
+#define MP4OTI_MPEG2VisualSpatial                           0x63
+#define MP4OTI_MPEG2VisualHigh                              0x64
+#define MP4OTI_MPEG2Visual422                               0x65
+/* MPEG-2 audio stream part 7 ("AAC") with various profiles */
+#define MP4OTI_MPEG2AudioMain                               0x66
+#define MP4OTI_MPEG2AudioLowComplexity                      0x67
+#define MP4OTI_MPEG2AudioScaleableSamplingRate              0x68
+/* MPEG-2 audio part 3 ("MP3") */
+#define MP4OTI_MPEG2AudioPart3                              0x69
+/* MPEG-1 visual visual stream */
+#define MP4OTI_MPEG1Visual                                  0x6A
+/* MPEG-1 audio stream part 3 ("MP3") */
+#define MP4OTI_MPEG1Audio                                   0x6B
+/* JPEG visual stream */
+#define MP4OTI_JPEG                                         0x6C
+
 /* I define uint24 here for better understanding */
 #ifndef uint24_t
 #define uint24_t uint32_t
Index: libmpdemux/demux_mov.c
===================================================================
RCS file: /cvsroot/mplayer/main/libmpdemux/demux_mov.c,v
retrieving revision 1.108
diff -u -u -r1.108 demux_mov.c
--- libmpdemux/demux_mov.c	13 Sep 2004 21:21:47 -0000	1.108
+++ libmpdemux/demux_mov.c	12 Nov 2004 08:17:27 -0000
@@ -946,7 +946,7 @@
 			    sh->i_bps = esds.avgBitrate/8; 
 
 //			    printf("######## audio format = %d ########\n",esds.objectTypeId);
-			    if(esds.objectTypeId==107)
+			    if(esds.objectTypeId==MP4OTI_MPEG1Audio || esds.objectTypeId==MP4OTI_MPEG2AudioPart3)
 				sh->format=0x55; // .mp3
 
 			    // dump away the codec specific configuration for the AAC decoder
@@ -1103,6 +1103,13 @@
       			esds_t esds; 				  
 			if(!mp4_parse_esds(trak->stdata+pos+8, atom_len-8, &esds)) {
     
+			  if(esds.objectTypeId==MP4OTI_MPEG2VisualSimple || esds.objectTypeId==MP4OTI_MPEG2VisualMain ||
+			     esds.objectTypeId==MP4OTI_MPEG2VisualSNR || esds.objectTypeId==MP4OTI_MPEG2VisualSpatial ||
+			     esds.objectTypeId==MP4OTI_MPEG2VisualHigh || esds.objectTypeId==MP4OTI_MPEG2Visual422)
+			    sh->format=mmioFOURCC('m', 'p', 'g', '2');
+			  else if(esds.objectTypeId==MP4OTI_MPEG1Visual)
+			    sh->format=mmioFOURCC('m', 'p', 'g', '1');
+
 			  // dump away the codec specific configuration for the AAC decoder
 			  trak->stream_header_len = esds.decoderConfigLen;
 			  trak->stream_header = (unsigned char *)malloc(trak->stream_header_len);