lavd/v4l2: move pixel format conversion code to a separate place.

This will be shared with the output device.

1 files changed, 62 insertions, 0 deletions

diff --git a/libavdevice/v4l2-common.h b/libavdevice/v4l2-common.h
new file mode 100644
index 0000000000..8aef2349ae
--- /dev/null
+++ b/libavdevice/v4l2-common.h
@@ -0,0 +1,62 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVDEVICE_V4L2_COMMON_H
+#define AVDEVICE_V4L2_COMMON_H
+
+#undef __STRICT_ANSI__ //workaround due to broken kernel headers
+#include "config.h"
+#include "libavformat/internal.h"
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+#if HAVE_SYS_VIDEOIO_H
+#include <sys/videoio.h>
+#else
+#if HAVE_ASM_TYPES_H
+#include <asm/types.h>
+#endif
+#include <linux/videodev2.h>
+#endif
+#include "libavutil/atomic.h"
+#include "libavutil/avassert.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
+#include "avdevice.h"
+#include "timefilter.h"
+#include "libavutil/parseutils.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/time.h"
+#include "libavutil/avstring.h"
+
+struct fmt_map {
+    enum AVPixelFormat ff_fmt;
+    enum AVCodecID codec_id;
+    uint32_t v4l2_fmt;
+};
+
+extern av_export const struct fmt_map avpriv_fmt_conversion_table[];
+
+uint32_t avpriv_fmt_ff2v4l(enum AVPixelFormat pix_fmt, enum AVCodecID codec_id);
+enum AVPixelFormat avpriv_fmt_v4l2ff(uint32_t v4l2_fmt, enum AVCodecID codec_id);
+enum AVCodecID avpriv_fmt_v4l2codec(uint32_t v4l2_fmt);
+
+#endif /* AVDEVICE_V4L2_COMMON_H */