mirror of https://git.ffmpeg.org/ffmpeg.git
avcodec/parser: use a mutex instead of atomics in av_register_codec_parser()
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: James Almer <jamrial@gmail.com>
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@ -25,9 +25,9 @@
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#include <string.h>
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#include "libavutil/avassert.h"
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#include "libavutil/atomic.h"
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#include "libavutil/internal.h"
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#include "libavutil/mem.h"
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#include "libavutil/thread.h"
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#include "internal.h"
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#include "parser.h"
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@ -42,11 +42,14 @@ AVCodecParser *av_parser_next(const AVCodecParser *p)
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return av_first_parser;
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}
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static AVMutex parser_register_mutex = AV_MUTEX_INITIALIZER;
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void av_register_codec_parser(AVCodecParser *parser)
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{
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do {
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parser->next = av_first_parser;
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} while (parser->next != avpriv_atomic_ptr_cas((void * volatile *)&av_first_parser, parser->next, parser));
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ff_mutex_lock(&parser_register_mutex);
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parser->next = av_first_parser;
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av_first_parser = parser;
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ff_mutex_unlock(&parser_register_mutex);
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}
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AVCodecParserContext *av_parser_init(int codec_id)
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