lavc: VAAPI H.264 encoder

Signed-off-by: Anton Khirnov <anton@khirnov.net>

1 files changed, 45 insertions, 0 deletions

diff --git a/libavcodec/vaapi_encode_h26x.h b/libavcodec/vaapi_encode_h26x.h
new file mode 100644
index 0000000000..d6db69a0ea
--- /dev/null
+++ b/libavcodec/vaapi_encode_h26x.h
@@ -0,0 +1,45 @@
+/*
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VAAPI_ENCODE_H26X_H
+#define AVCODEC_VAAPI_ENCODE_H26X_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "golomb.h"
+#include "put_bits.h"
+
+
+// Debug code may be interested in the name of the syntax element being
+// for tracing purposes.  Here, it is just discarded.
+
+#define write_u(pbc, width, value, name) put_bits(pbc, width, value)
+#define write_ue(pbc, value, name)       set_ue_golomb(pbc, value)
+#define write_se(pbc, value, name)       set_se_golomb(pbc, value)
+
+#define u(width, ...) write_u(pbc, width, __VA_ARGS__)
+#define ue(...)       write_ue(pbc, __VA_ARGS__)
+#define se(...)       write_se(pbc, __VA_ARGS__)
+
+
+// Copy from src to dst, applying emulation prevention.
+int ff_vaapi_encode_h26x_nal_unit_to_byte_stream(uint8_t *dst, size_t *dst_len,
+                                                 uint8_t *src, size_t src_len);
+
+#endif /* AVCODEC_VAAPI_ENCODE_H26X_H */