lavc/qsvenc_h264: remove the privite option trellis

There are many problems of current qsv trellis option:
1. Duplicated with AVCodecContext definition
2. MFX_TRELLIS_XXX is introduced by MSDK API 1.17
   Currently Without MSDK API checking thus may cause compilation issue.
3. user is inclined to enable trellis when set "-trellis 1", but
   actually it is to disable since MFX_TRELLIS_OFF is equal to 1.
4. It is too complex for user to enable trellis for every frame(I/P/B).

Just simply remove the private option, and switch to the AVCodecContext
definition. Compatibility should not a big problem (except can't exact map)
since the option name is same as AVCodecContext.

Signed-off-by: Zhong Li <zhong.li@intel.com>
Reviewed-by: Carl Eugen Hoyos <ceffmpeg@gmail.com>
Reviewed-by: Moritz Barsnick <barsnick@gmx.net>

1 files changed, 0 insertions, 1 deletions

diff --git a/libavcodec/qsvenc.h b/libavcodec/qsvenc.h
index fcd01f4a61..eed6f2c2c2 100644
--- a/libavcodec/qsvenc.h
+++ b/libavcodec/qsvenc.h
@@ -153,7 +153,6 @@ typedef struct QSVEncContext {
 
     int single_sei_nal_unit;
     int max_dec_frame_buffering;
-    int trellis;
 
     int bitrate_limit;
     int mbbrc;