[FFmpeg-devel] [PATCH] qsvenc: remove vcm option on Linux

[Zhong Li]

1. vcm mode is only available for H264.
2. vcm is not supported on Linux, but it is shown when run "./ffmpeg -h
encoder=h264_qsv |grep vcm". This shouldn't happen.

Signed-off-by: Zhong Li <zhong.li at intel.com>
---
 libavcodec/qsvenc.h      | 1 -
 libavcodec/qsvenc_h264.c | 3 +++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavcodec/qsvenc.h b/libavcodec/qsvenc.h
index d482722..b32b7f6 100644
--- a/libavcodec/qsvenc.h
+++ b/libavcodec/qsvenc.h
@@ -78,7 +78,6 @@
 { "slow",        NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_3  },            INT_MIN, INT_MAX, VE, "preset" },                                                \
 { "slower",      NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_2  },            INT_MIN, INT_MAX, VE, "preset" },                                                \
 { "veryslow",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_QUALITY  }, INT_MIN, INT_MAX, VE, "preset" },                                                \
-{ "vcm",      "Use the video conferencing mode ratecontrol",  OFFSET(qsv.vcm),      AV_OPT_TYPE_INT, { .i64 = 0  },  0, 1,         VE },                                \
 { "rdo",            "Enable rate distortion optimization",    OFFSET(qsv.rdo),            AV_OPT_TYPE_INT, { .i64 = -1 }, -1,          1, VE },                         \
 { "max_frame_size", "Maximum encoded frame size in bytes",    OFFSET(qsv.max_frame_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, UINT16_MAX, VE },                         \
 { "max_slice_size", "Maximum encoded slice size in bytes",    OFFSET(qsv.max_slice_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, UINT16_MAX, VE },                         \
diff --git a/libavcodec/qsvenc_h264.c b/libavcodec/qsvenc_h264.c
index 7aa65e9..d5e8df7 100644
--- a/libavcodec/qsvenc_h264.c
+++ b/libavcodec/qsvenc_h264.c
@@ -103,6 +103,9 @@ static const AVOption options[] = {
     QSV_COMMON_OPTS
 
     { "cavlc",          "Enable CAVLC",                           OFFSET(qsv.cavlc),          AV_OPT_TYPE_INT, { .i64 = 0 },   0,          1, VE },
+#if QSV_HAVE_VCM
+    { "vcm",      "Use the video conferencing mode ratecontrol",  OFFSET(qsv.vcm),      AV_OPT_TYPE_INT, { .i64 = 0  },  0, 1,         VE },
+#endif
     { "idr_interval", "Distance (in I-frames) between IDR frames", OFFSET(qsv.idr_interval), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
     { "pic_timing_sei",    "Insert picture timing SEI with pic_struct_syntax element", OFFSET(qsv.pic_timing_sei), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE },
     { "single_sei_nal_unit",    "Put all the SEI messages into one NALU",        OFFSET(qsv.single_sei_nal_unit),     AV_OPT_TYPE_INT, { .i64 = -1 }, -1,          1, VE },
-- 
2.7.4