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lavc: remove the locking code in avcodec_close() 

This function should not modify any global state, so there should be no
reason for any locking.
This commit is contained in:
Anton Khirnov 2014-04-05 07:09:44 +02:00
parent 584f884090
commit e1b66778b6
1 changed files with 0 additions and 18 deletions
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18
libavcodec/utils.c
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@ -1684,19 +1684,6 @@ void avsubtitle_free(AVSubtitle *sub)
av_cold int avcodec_close(AVCodecContext *avctx)
{
/* If there is a user-supplied mutex locking routine, call it. */
if (lockmgr_cb) {
if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))
return -1;
}
entangled_thread_counter++;
if (entangled_thread_counter != 1) {
av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
entangled_thread_counter--;
return -1;
}
if (avcodec_is_open(avctx)) {
FramePool *pool = avctx->internal->pool;
int i;
@ -1725,12 +1712,7 @@ av_cold int avcodec_close(AVCodecContext *avctx)
av_freep(&avctx->extradata);
avctx->codec = NULL;
avctx->active_thread_type = 0;
entangled_thread_counter--;
/* Release any user-supplied mutex. */
if (lockmgr_cb) {
(*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);
}
return 0;
}