[FFmpeg-cvslog] options: set minimum for "threads" to zero

[Janne Grunau]

ffmpeg | branch: master | Janne Grunau <janne-libav at jannau.net> | Wed Dec 21 01:37:44 2011 +0100| [c32e4029d99fb1bff3df86f62a3ce61d2419aae0] | committer: Janne Grunau

options: set minimum for "threads" to zero

A negative number of threads does not make sense and 0 is used for
autodetection. Adds a symbolic name for autodetection.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c32e4029d99fb1bff3df86f62a3ce61d2419aae0
---

 libavcodec/options.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/libavcodec/options.c b/libavcodec/options.c
index a3a102c..4ac9313 100644
--- a/libavcodec/options.c
+++ b/libavcodec/options.c
@@ -370,7 +370,8 @@ static const AVOption options[]={
 {"float", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_AA_FLOAT }, INT_MIN, INT_MAX, V|D, "aa"},
 #endif
 {"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
-{"threads", NULL, OFFSET(thread_count), AV_OPT_TYPE_INT, {.dbl = 1 }, INT_MIN, INT_MAX, V|E|D},
+{"threads", NULL, OFFSET(thread_count), AV_OPT_TYPE_INT, {.dbl = 1 }, 0, INT_MAX, V|E|D, "threads"},
+{"auto", "detect a good number of threads", 0, AV_OPT_TYPE_CONST, {.dbl = 0 }, INT_MIN, INT_MAX, V|E|D, "threads"},
 {"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
 {"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
 {"dc", "intra_dc_precision", OFFSET(intra_dc_precision), AV_OPT_TYPE_INT, {.dbl = 0 }, INT_MIN, INT_MAX, V|E},