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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /media/ffvpx/libavcodec/parser.h
parentInitial commit. (diff)
downloadfirefox-upstream.tar.xz
firefox-upstream.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'media/ffvpx/libavcodec/parser.h')
-rw-r--r--media/ffvpx/libavcodec/parser.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/parser.h b/media/ffvpx/libavcodec/parser.h
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+++ b/media/ffvpx/libavcodec/parser.h
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+/*
+ * AVCodecParser prototypes and definitions
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * 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 AVCODEC_PARSER_H
+#define AVCODEC_PARSER_H
+
+#include "avcodec.h"
+
+typedef struct ParseContext{
+ uint8_t *buffer;
+ int index;
+ int last_index;
+ unsigned int buffer_size;
+ uint32_t state; ///< contains the last few bytes in MSB order
+ int frame_start_found;
+ int overread; ///< the number of bytes which where irreversibly read from the next frame
+ int overread_index; ///< the index into ParseContext.buffer of the overread bytes
+ uint64_t state64; ///< contains the last 8 bytes in MSB order
+} ParseContext;
+
+#define END_NOT_FOUND (-100)
+
+/**
+ * Combine the (truncated) bitstream to a complete frame.
+ * @return -1 if no complete frame could be created,
+ * AVERROR(ENOMEM) if there was a memory allocation error
+ */
+int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_size);
+void ff_parse_close(AVCodecParserContext *s);
+
+/**
+ * Fetch timestamps for a specific byte within the current access unit.
+ * @param off byte position within the access unit
+ * @param remove Found timestamps will be removed if set to 1, kept if set to 0.
+ * @param fuzzy Only use found value if it is more informative than what we already have
+ */
+void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove, int fuzzy);
+
+#endif /* AVCODEC_PARSER_H */