Encoding a video in H264 format and use MP4 as container

I have used ffmpeg to encode the input video into H264 format and finally used MP4 as container. The following command line I have used for encoding.

#!/bin/bash
outfile=”video.mp4″
options=”-vcodec libx264 -b 512k -flags +loop+mv4 -cmp 256 \
-partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 \
-me_method hex -subq 7 -trellis 1 -refs 5 -bf 3 \
-flags2 +bpyramid+wpred+mixed_refs+dct8x8 -coder 1 -me_range 16 \
-g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -qmin 10\
-qmax 51 -qdiff 4″

ffmpeg -y -i “$1″ -an -pass 1 -threads 2 $options “$outfile”

ffmpeg -y -i “$1″ -acodec libfaac -ar 44100 -ab 96k -pass 2 -threads 2 $options “$outfile”