format-utils.h

/* Simple Plugin API */
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
/* SPDX-License-Identifier: MIT */
 
#ifndef SPA_PARAM_VIDEO_FORMAT_UTILS_H
#define SPA_PARAM_VIDEO_FORMAT_UTILS_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <spa/param/format-utils.h>
#include <spa/param/video/format.h>
#include <spa/param/video/raw-utils.h>
#include <spa/param/video/dsp-utils.h>
#include <spa/param/video/h264-utils.h>
#include <spa/param/video/mjpg-utils.h>
 
#ifndef SPA_API_VIDEO_FORMAT_UTILS
 #ifdef SPA_API_IMPL
  #define SPA_API_VIDEO_FORMAT_UTILS SPA_API_IMPL
 #else
  #define SPA_API_VIDEO_FORMAT_UTILS static inline
 #endif
#endif
 
SPA_API_VIDEO_FORMAT_UTILS int
spa_format_video_parse(const struct spa_pod *format, struct spa_video_info *info)
{
        int res;
 
        if ((res = spa_format_parse(format, &info->media_type, &info->media_subtype)) < 0)
                return res;
 
        if (info->media_type != SPA_MEDIA_TYPE_video)
                return -EINVAL;
 
        switch (info->media_subtype) {
        case SPA_MEDIA_SUBTYPE_raw:
                return spa_format_video_raw_parse(format, &info->info.raw);
        case SPA_MEDIA_SUBTYPE_dsp:
                return spa_format_video_dsp_parse(format, &info->info.dsp);
        case SPA_MEDIA_SUBTYPE_h264:
                return spa_format_video_h264_parse(format, &info->info.h264);
        case SPA_MEDIA_SUBTYPE_mjpg:
                return spa_format_video_mjpg_parse(format, &info->info.mjpg);
        }
        return -ENOTSUP;
}
 
SPA_API_VIDEO_FORMAT_UTILS struct spa_pod *
spa_format_video_build(struct spa_pod_builder *builder, uint32_t id,
                       const struct spa_video_info *info)
{
        switch (info->media_subtype) {
        case SPA_MEDIA_SUBTYPE_raw:
                return spa_format_video_raw_build(builder, id, &info->info.raw);
        case SPA_MEDIA_SUBTYPE_dsp:
                return spa_format_video_dsp_build(builder, id, &info->info.dsp);
        case SPA_MEDIA_SUBTYPE_h264:
                return spa_format_video_h264_build(builder, id, &info->info.h264);
        case SPA_MEDIA_SUBTYPE_mjpg:
                return spa_format_video_mjpg_build(builder, id, &info->info.mjpg);
        }
        errno = ENOTSUP;
        return NULL;
}
 
#ifdef __cplusplus
} /* extern "C" */
#endif
 
#endif /* SPA_PARAM_VIDEO_FORMAT_UTILS_H */