[FFmpeg-devel] [PATCH 2/3] libfdk-aacdec: Use the decoder's default level limiter settings

Martin Storsjö martin at martin.st
Wed Feb 5 13:07:07 EET 2020


It was disabled by default in 2dbd35b00c6433e587d5f44d5dbc8972ebbaa88e
as it added delay, but now we compensate for the delay properly
by offsetting timestamps.
---
 libavcodec/libfdk-aacdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/libfdk-aacdec.c b/libavcodec/libfdk-aacdec.c
index d9b080cf3e..32a97958c4 100644
--- a/libavcodec/libfdk-aacdec.c
+++ b/libavcodec/libfdk-aacdec.c
@@ -81,7 +81,7 @@ static const AVOption fdk_aac_dec_options[] = {
     { "drc_heavy", "Dynamic Range Control: heavy compression, where [1] is on (RF mode) and [0] is off",
                      OFFSET(drc_heavy),      AV_OPT_TYPE_INT,   { .i64 = -1},  -1, 1,   AD, NULL    },
 #if FDKDEC_VER_AT_LEAST(2, 5) // 2.5.10
-    { "level_limit", "Signal level limiting", OFFSET(level_limit), AV_OPT_TYPE_INT, { .i64 = 0 }, -1, 1, AD },
+    { "level_limit", "Signal level limiting (-1 auto, 0 off, 1 enabled)", OFFSET(level_limit), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, AD },
 #endif
 #if FDKDEC_VER_AT_LEAST(3, 0) // 3.0.0
     { "drc_effect","Dynamic Range Control: effect type, where e.g. [0] is none and [6] is general",
-- 
2.21.1 (Apple Git-122.3)



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