avformat/mov_muxer: Extended MOV muxer to handle EVC video content

- Changes in mov_write_video_tag function to handle EVC elementary stream
- Provided structure EVCDecoderConfigurationRecord that specifies the decoder configuration information for ISO/IEC 23094-1 video content

Signed-off-by: Dawid Kozinski <d.kozinski@samsung.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/libavformat/evc.h b/libavformat/evc.h
new file mode 100644
index 0000000000..db56275fd8
--- /dev/null
+++ b/libavformat/evc.h
@@ -0,0 +1,44 @@
+/*
+ * EVC helper functions for muxers
+ * Copyright (c) 2022 Dawid Kozinski <d.kozinski@samsung.com>
+ *
+ * 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 AVFORMAT_EVC_H
+#define AVFORMAT_EVC_H
+
+#include <stdint.h>
+#include "libavutil/rational.h"
+#include "avio.h"
+
+
+
+/**
+ * Writes EVC sample metadata to the provided AVIOContext.
+ *
+ * @param pb pointer to the AVIOContext where the evc sample metadata shall be written
+ * @param buf input data buffer
+ * @param size size in bytes of the input data buffer
+ * @param ps_array_completeness @see ISO/IEC 14496-15:2021 Coding of audio-visual objects - Part 15: section 12.3.3.3
+ *
+ * @return 0 in case of success, a negative error code in case of failure
+ */
+int ff_isom_write_evcc(AVIOContext *pb, const uint8_t *data,
+                       int size, int ps_array_completeness);
+
+#endif // AVFORMAT_EVC_H