[FFmpeg-cvslog] libavcodec/qsvenc: Let runtime to set default parameter.

[Wenbin Chen]

ffmpeg | branch: master | Wenbin Chen <wenbin.chen-at-intel.com at ffmpeg.org> | Mon Sep 26 17:36:29 2022 +0800| [a3c0a3ec604da635fba5d356d7ec53bbd7c38d78] | committer: Haihao Xiang

libavcodec/qsvenc: Let runtime to set default parameter.

Unset qsv_h264 and qsv_hevc's default settings. Let runtime to decide
these parameters, so that it can choose the best parameter and ffmpeg-qsv
can keep up with runtime's update.

Signed-off-by: Wenbin Chen <wenbin.chen at intel.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a3c0a3ec604da635fba5d356d7ec53bbd7c38d78
---

 libavcodec/qsvenc_h264.c | 5 ++---
 libavcodec/qsvenc_hevc.c | 3 +--
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/libavcodec/qsvenc_h264.c b/libavcodec/qsvenc_h264.c
index 85826ae4be..11aaabbd1b 100644
--- a/libavcodec/qsvenc_h264.c
+++ b/libavcodec/qsvenc_h264.c
@@ -176,9 +176,8 @@ static const AVClass class = {
 static const FFCodecDefault qsv_enc_defaults[] = {
     { "b",         "1M"    },
     { "refs",      "0"     },
-    // same as the x264 default
-    { "g",         "250"   },
-    { "bf",        "3"     },
+    { "g",         "-1"    },
+    { "bf",        "-1"    },
     { "qmin",      "-1"    },
     { "qmax",      "-1"    },
     { "trellis",   "-1"    },
diff --git a/libavcodec/qsvenc_hevc.c b/libavcodec/qsvenc_hevc.c
index 6ec6230999..a5bf915954 100644
--- a/libavcodec/qsvenc_hevc.c
+++ b/libavcodec/qsvenc_hevc.c
@@ -289,8 +289,7 @@ static const AVClass class = {
 static const FFCodecDefault qsv_enc_defaults[] = {
     { "b",         "1M"    },
     { "refs",      "0"     },
-    // same as the x264 default
-    { "g",         "248"   },
+    { "g",         "-1"    },
     { "bf",        "-1"    },
     { "qmin",      "-1"    },
     { "qmax",      "-1"    },