move the pixel format setting out of the filterchain

somehow the filterchain format for mp4 ends up applies to the other outputs

Author: dericed

vrecord

@@ -608,10 +608,10 @@ _setup_vrecord_process(){
                 MP4NAME="${DIR}/${FULL_OUTPUT_ID}.mp4"
                 MP4_V_PADNAME="MP4_V"
                 SPLIT_PADS+=("${MP4_V_PADNAME}")
-                RECORD_COMMAND_MP4_FILTER=";[MP4_V]${RECORDINGFILTER_MP4#,},bwdif,format=yuv420p[${MP4_V_PADNAME}]"
+                RECORD_COMMAND_MP4_FILTER=";[MP4_V]${RECORDINGFILTER_MP4#,},bwdif[${MP4_V_PADNAME}]"
                 SPLIT_MAPS+=(-map "[${MP4_V_PADNAME}]")
                 (( VIDEO_STREAM_IDX++ ))
-                EXTRAOPTIONS+=(-c:v:"${MP4_V_IDX}" h264 -g:v:"${MP4_V_IDX}" 12 -profile:v:"${MP4_V_IDX}" main -level:v:"${MP4_V_IDX}" "${ACCESS_MP4_LEVEL}" -b:v:"${MP4_V_IDX}" "${ACCESS_MP4_BITRATE}")
+                EXTRAOPTIONS+=(-c:v:"${MP4_V_IDX}" h264 -pix_fmt:v:"${MP4_V_IDX}" yuv420p -g:v:"${MP4_V_IDX}" 12 -profile:v:"${MP4_V_IDX}" main -level:v:"${MP4_V_IDX}" "${ACCESS_MP4_LEVEL}" -b:v:"${MP4_V_IDX}" "${ACCESS_MP4_BITRATE}")
             fi
 
             # construct end of video filterchain