how to create a deinterlacer in xinimin.c (xine) - c

Question

I've taken xinimin.c and added seek and osd functionality. The last big piece that I need to implement is deinterlacing, however, I'm finding very little documentation. I've been through the hacker's guide and of course I haved googled and googled. I found the deprecated method:
xine_set_param(stream, XINE_PARAM_VO_DEINTERLACE, 1);
which did not work. I saw that the current method involves post plugins, but my /usr/include/xine/post.h doesn't have the word deinterlace in it.
Can anyone provide an example of how to implement deinterlacing. It would be nice to have the flexibility down the road to change the deinterlacer, but something equivalent to the -D option on the command line is what I'm looking for to start with.
Is there a good resource for example source files?

Answer 1

Is this what you are looking for? src/post/deinterlace directory:
(4 links to pretty much the same:)
debian.org/hg/xine-lib
github || huceke/xine-lib-vaapi/tree/master/src/post/deinterlace
fossies dox ** xine-lib 1.2.1, deinterlace.h File Reference
xine_plugin.c File Reference
From hackersguide - Walking the source tree:
post
Video and audio post effect plugins live here. Post plugins
modify streams of video frames or audio buffers as they leave
the decoder to provide conversion or effects.
deinterlace (imported)
The tvtime deinterlacer as a xine video filter post.
hackersguide, Plugin system
Edit:
I have only installed libxine, not anything else.
It is however a good idea to download the source as the project in large part is documented in the code. If you use i.e. Vim it is nice to use it with cscope and/or ctags. (As show in this tutorial.). Then you can jump to functions, definitions, callers, ... (across files etc), simply by a couple of key strokes. (They map where every function is defined, called, etc.)
When compiling, if on linux at least, I have to add the lib's at end (after source file):
gcc -Wall -Wextra -pedantic -std=c89 -o muxine muxine.c -lX11 -lxine
Perhaps this'll get you further on the way: Using sample code, muxine.c,:
And reading source documentation, (mainly here): xine.h
I added in main:
const char* const *tmp;
xine_post_t *post_x;
xine_post_api_t *post_api;
xine_post_in_t *input_api;
xine_post_api_descr_t *param;
const char *post_plug_t = "tvtime";
/*const char *post_plug_d = "deinterlace"; perhaps this?? */
After the existing sample code:
ao_port = xine_open_audio_driver(xine , ao_driver, NULL);
stream = xine_stream_new(xine, ao_port, vo_port);
I added
/* get a list of all available post plugins */
if((tmp = xine_list_post_plugins(xine)) == NULL) {
fprintf(stderr, "Unable to get post plugins\n");
xine_exit(xine);
return 1;
}
printf("Post plugins:\n");
while (*tmp != NULL)
printf(" %s\n", *tmp++);
/* initialize a post plugin */
if ((post_x = xine_post_init(xine, post_plug_t, 1,
&ao_port, &vo_port)) == NULL) {
fprintf(stderr, " *ERR: Unable to 'post init' %s;\n",
post_plug_t);
xine_exit(xine);
return 1;
}
/* get a list of all outputs of a post plugin */
tmp = xine_post_list_outputs(post_x);
printf("Post List Outputs:\n");
while (*tmp != NULL)
printf(" %s\n", *tmp++);
! I get at least tvtime. Believe that is the deinterlacing plugin. (Sounds like it when reading the src/post/... comments.
One have the struct xine_post_api_t whic in turn has set_parameters(), that can be used to control the plugin (from the looks of it).