From 08f6fdc3e4bbda3837417fb20656165756e6ea87 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 29 Jun 2013 03:24:32 +0200 Subject: avcodec/parser: Make av_register_codec_parser() thread safe Signed-off-by: Michael Niedermayer --- libavcodec/parser.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'libavcodec/parser.c') diff --git a/libavcodec/parser.c b/libavcodec/parser.c index f7cb5cf..500bbb8 100644 --- a/libavcodec/parser.c +++ b/libavcodec/parser.c @@ -23,6 +23,7 @@ #include #include "parser.h" +#include "libavutil/atomic.h" #include "libavutil/mem.h" static AVCodecParser *av_first_parser = NULL; @@ -34,8 +35,9 @@ AVCodecParser* av_parser_next(AVCodecParser *p){ void av_register_codec_parser(AVCodecParser *parser) { - parser->next = av_first_parser; - av_first_parser = parser; + do { + parser->next = av_first_parser; + } while (parser->next != avpriv_atomic_ptr_cas((void * volatile *)&av_first_parser, parser->next, parser)); } AVCodecParserContext *av_parser_init(int codec_id) -- cgit v1.1