[Ffmpeg-devel] Undefined reference to mpegts_parse_open/close/packet

Michael Niedermayer michaelni
Mon Oct 2 21:01:58 CEST 2006


On Mon, Oct 02, 2006 at 01:23:09PM -0400, Rich Felker wrote:
> On Mon, Oct 02, 2006 at 07:15:55AM -0700, Unga wrote:
> > > I repeat:
> > > 
> > >   If you wish to get rid of patented codecs, the
> > > solution
> > >   is to disable *all*, not enable a few select ones.
> > > 
> > > Notice the word "all".
> > > 
> > 
> > What I want to enable are following:
> > 3. mjpeg
> > 4. png
> Probably patent-free.

quoting the jpeg spec:

annex L
L.1        Introductory remarks
The users attention is called to the possibility that  for some of the coding processes specified in Annexes F, G, H, and J
 compliance with this Specification may require use of an invention covered by patent rights.
By publication of this Specification, no position is taken with respect to the validity of this claim or of any patent rights in
connection therewith. However, for each patent listed in this annex, the patent holder has filed with the Information
Technology Task Force (ITTF) and the Telecommunication Standardization Bureau (TSB) a statement of willingness to
grant a license under these rights on reasonable and non-discriminatory terms and conditions to applicants desiring to
obtain such a license.
The criteria for including patents in this annex are:
           a)   the patent has been identified by someone who is familiar with the technical fields relevant to this
                Specification, and who believes use of the invention covered by the patent is required for implementation
                of one or more of the coding processes specified in Annexes F, G, H, or J;
           b)   the patent-holder has written a letter to the ITTF and TSB, stating willingness to grant a license to an
                unlimited number of applicants throughout the world under reasonable terms and conditions that are
                demonstrably free of any unfair discrimination.
This list of patents shall be updated, if necessary, upon publication of any revisions to the Recommendation | International

L.2      List of patents
The following patents may be required for implementation of any one of the processes specified in Annexes F, G, H, and J
which uses arithmetic coding:
         US 4,633,490, December 30, 1986, IBM, MITCHELL (J.L.) and GOERTZEL (G.): Symmetrical Adaptive Data
         Compression/Decompression System.
         US 4,652,856, February 4, 1986, IBM, MOHIUDDIN (K.M.) and RISSANEN (J.J.): A Multiplication-free
         Multi-Alphabet Arithmetic Code.
         US 4,369,463, January 18, 1983, IBM, ANASTASSIOU (D.) and MITCHELL (J.L.): Grey Scale Image
         Compression with Code Words a Function of Image History.
         US 4,749,983, June 7, 1988, IBM, LANGDON (G.): Compression of Multilevel Signals.
         US 4,935,882, June 19, 1990, IBM, PENNEBAKER (W.B.) and MITCHELL (J.L.): Probability Adaptation
         for Arithmetic Coders.
         US 4,905,297, February 27, 1990, IBM, LANGDON (G.G.), Jr., MITCHELL (J.L.), PENNEBAKER (W.B.),
         and RISSANEN (J.J.): Arithmetic Coding Encoder and Decoder System.
         US 4,973,961, November 27, 1990, AT&T, CHAMZAS (C.), DUTTWEILER (D.L.): Method and Apparatus
for Carry-over Control in Arithmetic Entropy Coding.
         US 5,025,258, June 18, 1991, AT&T, DUTTWEILER (D.L): Adaptive Probability Estimator for Entropy
         US 5,099,440, March 24, 1992, IBM, PENNEBAKER (W.B.) and MITCHELL (J.L.): Probability Adaptation
         for Arithmetic Coders.
         Japanese Patent Application 2-46275, February 26, 1990, MEL ONO (F.), KIMURA (T.), YOSHIDA (M.), and
         KINO (S.): Coding System.
The following patent may be required for implementation of any one of the hierarchical processes specified in Annex H
when used with a lossless final frame:
         US 4,665,436, May 12, 1987, EI OSBORNE (J.A.) and SEIFFERT (C.): Narrow Bandwidth Signal

> > 10. dvvideo
> Dunno status.

Helical-scan compressed digital video cassette system using 6,35 mm
                    magnetic tape  Format D-7
                    Part 2:Compression format
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
   of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
that was the only usefull hit when searching for "patent" in the draft i have


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

In the past you could go to a library and read, borrow or copy any book
Today you'd get arrested for mere telling someone where the library is

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