[Ffmpeg-devel] List of output formats/codecs?

[Martin Boehme]

Hi Ian,

> Howdy, I'm working on integrating FFMpeg into another application, and I 
> was wondering if there is a way to get a list of usable output formats and 
> encoders at runtime,

first_avcodec (declared in avcodec.h) points to a linked list of codecs. 
Similarly, first_iformat and first_oformat (declared in avformat.h) 
point to linked lists of input and output formats. For examples of how 
to walk these lists, see the code for avcodec_find_encoder() 
(libavcodec/utils.c), av_find_input_format() and guess_format() (both 
libavformat/utils.c).

> and possibly(this is probably a long shot) what pixel 
> formats are valid with the combination of an encoder/container.

The pix_fmts element of the AVCodec structure points to an array of 
pixel formats supported by the codec -- for most codecs, this is 
PIX_FMT_YUV420P.

HTH

Martin

-- 
Martin B?hme
Inst. f. Neuro- and Bioinformatics
Ratzeburger Allee 160, D-23538 Luebeck
Phone: +49 451 500 5514
Fax:   +49 451 500 5502
boehme at inb.uni-luebeck.de