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https://gitlab.freedesktop.org/pipewire/pipewire.git
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caaeaff223
Reorganise the SPA includes to make it more extensible later Simplify the naming of the buffer and meta params
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/* Spa
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* Copyright (C) 2017 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <spa/pod/parser.h>
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#include <lib/debug.h>
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int main(int argc, char *argv[])
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{
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char buffer[4096];
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struct spa_pod_builder b = { 0, };
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struct spa_pod_parser prs;
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struct spa_pod *fmt, *pod = NULL, *pod2 = NULL;
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uint32_t format = 1, video = 2, raw = 3;
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uint32_t size = 4, framerate = 5, I420 = 6, YUY2 = 7;
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uint32_t media_type = -1, media_subtype = -1;
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uint32_t fmt_value = -1;
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int res;
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spa_pod_builder_init(&b, buffer, sizeof(buffer));
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fmt = spa_pod_builder_add(&b,
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"<",0,format,
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" [ i", video, "i",raw,"]"
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" :", format, "ieu", I420,
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2, I420, YUY2,
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" :", size, "Rru", &SPA_RECTANGLE(320,240),
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2, &SPA_RECTANGLE(1,1),
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&SPA_RECTANGLE(INT32_MAX, INT32_MAX),
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" :", framerate, "Fru", &SPA_FRACTION(25,1),
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2, &SPA_FRACTION(0,1),
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&SPA_FRACTION(INT32_MAX, 1),
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">", NULL);
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spa_debug_pod(fmt, 0);
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spa_pod_parser_pod(&prs, fmt);
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res = spa_pod_parser_get(&prs,
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"<"
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" [ i",&media_type,"*i"/*,&media_subtype,*/" ]"
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" :", framerate, "V", &pod,
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" :", 10, "?V", &pod2,
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" :", format, "?i", &fmt_value,
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">", NULL);
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printf("res :%d\n", res);
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printf("media-type:%d media-subtype:%d\n", media_type, media_subtype);
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printf("framerate:\n");
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if (pod)
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spa_debug_pod(pod, 0);
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printf("format: %d\n", fmt_value);
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spa_pod_builder_init(&b, buffer, sizeof(buffer));
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pod = spa_pod_builder_add(&b,
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"<",0,format,
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" P", NULL,
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" [ i", 44, "i",45,"]"
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">", NULL);
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spa_debug_pod(pod, 0);
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spa_pod_parser_pod(&prs, pod);
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res = spa_pod_parser_get(&prs,
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"<"
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" ?[ i",&media_type,"i",&media_subtype," ]"
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" [ i", &video, "i",&raw,"]"
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">", NULL);
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printf("res :%d\n", res);
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printf("video:%d raw:%d\n", video, raw);
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return 0;
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}
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