diff options
author | Lennart Poettering <lennart@poettering.net> | 2004-11-17 00:05:25 +0000 |
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committer | Lennart Poettering <lennart@poettering.net> | 2004-11-17 00:05:25 +0000 |
commit | 0a2bbc528b7865b08139155e0316738a717c4e42 (patch) | |
tree | 99166840892bb315fe109436093876386adac51d /polyp/mcalign.h | |
parent | f5f6605254d17c5bc06b8c1ec98e8ee09009af10 (diff) |
* some commenting work
* add new field "read_only" to memory blocks
* add new API function pa_context_get_server()
* filter capture data through mcalign on client
* make module-tunnel use pa_socket_client_new_string() instead of using pa_resolve_server() directly.
* remove pa_resolve_server()
* remove debug.h and replace it by a macro definition on the gcc command line
* some strbuf cleanups
* small fixes in pa_stream for cleanup when server dies
* new CLI command "load-sample-dir-lazy"
* send FQDN as part of server info
* rework mcalign, this time with memory block merging
* fix iochannel cleanup when connection dies
* check getaddrinfo() results
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@286 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'polyp/mcalign.h')
-rw-r--r-- | polyp/mcalign.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/polyp/mcalign.h b/polyp/mcalign.h new file mode 100644 index 00000000..925f438a --- /dev/null +++ b/polyp/mcalign.h @@ -0,0 +1,77 @@ +#ifndef foomcalignhfoo +#define foomcalignhfoo + +/* $Id$ */ + +/*** + This file is part of polypaudio. + + polypaudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + polypaudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with polypaudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include "memblock.h" +#include "memchunk.h" + +/* An alignment object, used for aligning memchunks to multiples of + * the frame size. */ + +/* Method of operation: the user creates a new mcalign object by + * calling pa_mcalign_new() with the appropriate aligning + * granularity. After that he may call pa_mcalign_push() for an input + * memchunk. After exactly one memchunk the user has to call + * pa_mcalign_pop() until it returns -1. If pa_mcalign_pop() returns + * 0, the memchunk *c is valid and aligned to the granularity. Some + * pseudocode illustrating this: + * + * struct pa_mcalign *a = pa_mcalign_new(4, NULL); + * + * for (;;) { + * struct pa_memchunk input; + * + * ... fill input ... + * + * pa_mcalign_push(m, &input); + * pa_memblock_unref(input.memblock); + * + * for (;;) { + * struct pa_memchunk output; + * + * if (pa_mcalign_pop(m, &output) < 0) + * break; + * + * ... consume output ... + * + * pa_memblock_unref(output.memblock); + * } + * } + * + * pa_memchunk_free(a); + * */ + +struct pa_mcalign; + +struct pa_mcalign *pa_mcalign_new(size_t base, struct pa_memblock_stat *s); +void pa_mcalign_free(struct pa_mcalign *m); + +/* Push a new memchunk into the aligner. The caller of this routine + * has to free the memchunk by himself. */ +void pa_mcalign_push(struct pa_mcalign *m, const struct pa_memchunk *c); + +/* Pop a new memchunk from the aligner. Returns 0 when sucessful, + * nonzero otherwise. */ +int pa_mcalign_pop(struct pa_mcalign *m, struct pa_memchunk *c); + +#endif |