Module: libav Branch: master Commit: b12d21733975f9001eecb480fc28e5e4473b1327
Author: Janne Grunau <[email protected]> Committer: Janne Grunau <[email protected]> Date: Sun Jan 1 17:35:16 2012 +0100 threads: limit the number of automatic threads to MAX_AUTO_THREADS The extra thread added in {frame_}*thread_init was not taken into account. Explicitly sets thread_count to 1 if only one CPU core was detected. Also fixes two typos in comments. --- libavcodec/pthread.c | 14 +++++++++----- 1 files changed, 9 insertions(+), 5 deletions(-) diff --git a/libavcodec/pthread.c b/libavcodec/pthread.c index 54a0eb3..58c5fcd 100644 --- a/libavcodec/pthread.c +++ b/libavcodec/pthread.c @@ -186,7 +186,7 @@ static int get_logical_cpus(AVCodecContext *avctx) nb_cpus = sysconf(_SC_NPROCESSORS_ONLN); #endif av_log(avctx, AV_LOG_DEBUG, "detected %d logical cores\n", nb_cpus); - return FFMIN(nb_cpus, MAX_AUTO_THREADS); + return nb_cpus; } @@ -296,9 +296,11 @@ static int thread_init(AVCodecContext *avctx) if (!thread_count) { int nb_cpus = get_logical_cpus(avctx); - // use number of cores + 1 as thread count if there is motre than one + // use number of cores + 1 as thread count if there is more than one if (nb_cpus > 1) - thread_count = avctx->thread_count = nb_cpus + 1; + thread_count = avctx->thread_count = FFMIN(nb_cpus + 1, MAX_AUTO_THREADS); + else + thread_count = avctx->thread_count = 1; } if (thread_count <= 1) { @@ -767,9 +769,11 @@ static int frame_thread_init(AVCodecContext *avctx) if (!thread_count) { int nb_cpus = get_logical_cpus(avctx); - // use number of cores + 1 as thread count if there is motre than one + // use number of cores + 1 as thread count if there is more than one if (nb_cpus > 1) - thread_count = avctx->thread_count = nb_cpus + 1; + thread_count = avctx->thread_count = FFMIN(nb_cpus + 1, MAX_AUTO_THREADS); + else + thread_count = avctx->thread_count = 1; } if (thread_count <= 1) { _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
