mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
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5effc83479
FSF addresses used in PA sources are no longer valid and rpmlint generates numerous warnings during packaging because of this. This patch changes all FSF addresses to FSF web page according to the GPL how-to: https://www.gnu.org/licenses/gpl-howto.en.html Done automatically by sed-ing through sources.
81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
#ifndef foomcalignhfoo
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#define foomcalignhfoo
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/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#include <pulsecore/memblock.h>
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#include <pulsecore/memchunk.h>
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/* An alignment object, used for aligning memchunks to multiples of
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* the frame size. */
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/* Method of operation: the user creates a new mcalign object by
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* calling pa_mcalign_new() with the appropriate aligning
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* granularity. After that he may call pa_mcalign_push() for an input
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* memchunk. After exactly one memchunk the user has to call
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* pa_mcalign_pop() until it returns -1. If pa_mcalign_pop() returns
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* 0, the memchunk *c is valid and aligned to the granularity. Some
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* pseudocode illustrating this:
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*
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* pa_mcalign *a = pa_mcalign_new(4, NULL);
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*
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* for (;;) {
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* pa_memchunk input;
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*
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* ... fill input ...
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*
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* pa_mcalign_push(m, &input);
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* pa_memblock_unref(input.memblock);
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*
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* for (;;) {
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* pa_memchunk output;
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*
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* if (pa_mcalign_pop(m, &output) < 0)
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* break;
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*
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* ... consume output ...
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*
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* pa_memblock_unref(output.memblock);
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* }
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* }
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*
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* pa_memchunk_free(a);
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* */
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typedef struct pa_mcalign pa_mcalign;
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pa_mcalign *pa_mcalign_new(size_t base);
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void pa_mcalign_free(pa_mcalign *m);
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/* Push a new memchunk into the aligner. The caller of this routine
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* has to free the memchunk by himself. */
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void pa_mcalign_push(pa_mcalign *m, const pa_memchunk *c);
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/* Pop a new memchunk from the aligner. Returns 0 when successful,
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* nonzero otherwise. */
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int pa_mcalign_pop(pa_mcalign *m, pa_memchunk *c);
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/* If we pass l bytes in now, how many bytes would we get out? */
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size_t pa_mcalign_csize(pa_mcalign *m, size_t l);
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/* Flush what's still stored in the aligner */
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void pa_mcalign_flush(pa_mcalign *m);
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#endif
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