RE: [MPEGIF Discuss] mpeg-j question
"Rob Koenen \(MPEGIF\)" <rob.koenen-8/[email protected]> Tue, 9 Mar 2004 17:07:27 +0100
| Newsgroups | gmane.comp.video.mpeg4.general |
|---|---|
| Organization | MPEGIF |
| Message-ID | <[email protected]> |
This is a multi-part message in MIME format. --===============78194566906436425== Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C405F9.00717E50" This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C405F9.00717E50 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Please use mp4-tech for these discussions. The Discuss list is meant for non-technical discussions. thanks much, =20 Rob -----Original Message----- From: discuss-bounces-wvgAS0I8NaWTm/[email protected] [mailto:discuss-bounces-wvgAS0I8NaWTm/[email protected]] On Behalf Of Mikael Bourges-Sevenier Sent: Monday, 8 March 2004 17:37 To: 'Vidhya Balasubramanian'; discuss-wvgAS0I8NaWTm/[email protected] Subject: RE: [MPEGIF Discuss] mpeg-j question =20 Hello, I am Vidhya Balasubramanian, a Phd student. I have been = working on an MPEG-4 based implementation and I have some questions regarding = MPEG-J. I would be glad if you can provide me information regarding this. 1. Using the open source MPEG-J api's at ISO , the mpeg-j stream = was only compiled using the bif enc and MUX. Hence the output was a .trif = file. Is there a way to directly generate a MP4 file instead of a .trif file. = I am not able to figure out how to do this. [Mika=EBl Bourges-S=E9venier]=20 You should use mp4enc rather than mux. It will write Jar files into the = mp4 file format. =20 2. If I use the .bt format and use the MP4 tool at ENST, how do I include a java stream to the mpeg-4 stream.=20 [Mika=EBl Bourges-S=E9venier]=20 Convert .bt file format to IM1 file format. There are almost the same = for the scene description but the object descriptor section is a bit = different, see the examples for MPEG-J in Test/MPEG-J directory. With IM1, you need 2 files: one for the scene description, which would = be used by BifsEnc and one file for object descriptor which is used by mux = or mp4enc (these files typically ends with .scr extension). It is in the = scr files that you describe MPEG-J stream, see the samples in Test/MPEG-J directory. =20 Kind regards, =20 Mike=20 =20 Thanks a lot Regards Vidhya ------=_NextPart_000_0001_01C405F9.00717E50 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Diso-8859-1"> <TITLE>Message</TITLE> <META content=3D"MSHTML 6.00.2800.1400" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><SPAN class=3D742521609-09032004><FONT face=3DVerdana = color=3D#0000ff=20 size=3D2>Please use mp4-tech for these discussions. The Discuss = list is meant=20 for non-technical discussions.</FONT></SPAN></DIV> <DIV><SPAN class=3D742521609-09032004><FONT face=3DVerdana = color=3D#0000ff=20 size=3D2>thanks much,</FONT></SPAN></DIV> <DIV><SPAN class=3D742521609-09032004><FONT face=3DVerdana = color=3D#0000ff=20 size=3D2></FONT></SPAN> </DIV> <DIV><SPAN class=3D742521609-09032004><FONT face=3DVerdana = color=3D#0000ff=20 size=3D2>Rob</FONT></SPAN></DIV> <BLOCKQUOTE dir=3Dltr=20 style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px = solid; MARGIN-RIGHT: 0px"> <DIV></DIV> <DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr = align=3Dleft><FONT=20 face=3DTahoma size=3D2>-----Original Message-----<BR><B>From:</B>=20 discuss-bounces-wvgAS0I8NaWTm/[email protected] = [mailto:discuss-bounces-wvgAS0I8NaWTm/[email protected]]=20 <B>On Behalf Of </B>Mikael Bourges-Sevenier<BR><B>Sent:</B> Monday, 8 = March=20 2004 17:37<BR><B>To:</B> 'Vidhya Balasubramanian';=20 discuss-wvgAS0I8NaWTm/[email protected]<BR><B>Subject:</B> RE: [MPEGIF Discuss] = mpeg-j=20 question<BR><BR></FONT></DIV> <DIV><FONT face=3DTahoma size=3D2><FONT face=3DArial=20 color=3D#0000ff></FONT><BR></FONT> </DIV> <BLOCKQUOTE dir=3Dltr=20 style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px = solid; MARGIN-RIGHT: 0px"> <DIV><FONT size=3D2>Hello,</FONT></DIV> <DIV><FONT = size=3D2> I=20 am Vidhya Balasubramanian, a Phd student. I have been working on an = MPEG-4=20 based implementation and I have some questions regarding MPEG-J. I = would be=20 glad if you can provide me information regarding this.</FONT></DIV> <DIV><FONT = size=3D2> 1. Using=20 the open source MPEG-J api's at ISO , the mpeg-j stream was = only=20 compiled using the bif enc and MUX. Hence the output was a .trif = file. Is=20 there a way to directly generate a MP4 file instead of a .trif file. = I am=20 not able to figure out how to do this.<BR><SPAN=20 class=3D154563216-08032004><FONT face=3DArial = color=3D#0000ff>[Mika=EBl=20 Bourges-S=E9venier] </FONT></SPAN></FONT></DIV> <DIV><FONT size=3D2><SPAN class=3D154563216-08032004><FONT = face=3DArial=20 color=3D#0000ff>You should use mp4enc rather than mux. It will = write Jar=20 files into the mp4 file format.</FONT></SPAN></FONT></DIV> <DIV><FONT size=3D2><SPAN = class=3D154563216-08032004></SPAN></FONT> </DIV> <DIV><FONT size=3D2> 2. If I use the = .bt format=20 and use the MP4 tool at ENST, how do I include a java stream to the = mpeg-4=20 stream. <BR><SPAN class=3D154563216-08032004><FONT face=3DArial=20 color=3D#0000ff>[Mika=EBl = Bourges-S=E9venier] </FONT></SPAN></FONT></DIV> <DIV><FONT size=3D2><SPAN class=3D154563216-08032004><FONT = face=3DArial=20 color=3D#0000ff>Convert .bt file format to IM1 file format. There = are almost=20 the same for the scene description but the object descriptor = section is=20 a bit different, see the examples for MPEG-J in Test/MPEG-J=20 directory.</FONT></SPAN></FONT></DIV> <DIV><FONT size=3D2><SPAN class=3D154563216-08032004><FONT = face=3DArial=20 color=3D#0000ff>With IM1, you need 2 files: one for the scene = description,=20 which would be used by BifsEnc and one file for object descriptor = which is=20 used by mux or mp4enc (these files typically ends with .scr = extension).=20 It is in the scr files that you describe MPEG-J stream, see = the samples=20 in Test/MPEG-J directory.</FONT></SPAN></FONT></DIV> <DIV><FONT size=3D2><SPAN = class=3D154563216-08032004></SPAN></FONT> </DIV> <DIV><FONT size=3D2><SPAN class=3D154563216-08032004><FONT = face=3DArial=20 color=3D#0000ff>Kind regards,</FONT></SPAN></FONT></DIV> <DIV><FONT size=3D2><SPAN = class=3D154563216-08032004></SPAN></FONT> </DIV> <DIV><FONT size=3D2><SPAN class=3D154563216-08032004><FONT = face=3DArial=20 color=3D#0000ff>Mike</FONT> </SPAN></FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>Thanks a lot</FONT></DIV> <DIV><FONT size=3D2>Regards</FONT></DIV> <DIV><FONT = size=3D2>Vidhya</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML> ------=_NextPart_000_0001_01C405F9.00717E50-- --===============78194566906436425== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Discuss mailing list Discuss-wvgAS0I8NaWTm/[email protected] http://lists.mpegif.org/mailman/listinfo/discuss Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php --===============78194566906436425==--