[mdlug] RESEND: Converting video for Android with mencoder - updated

[Ingles, Raymond]

Just to make sure this hits the general group, I'll send it one more
time. Might be useful to somebody.

> A while back, I posted scripts that would convert video to play on a
Motorola
> Droid running Android. It turns out that mencoder's defaults have
changed,
> and you need to add a new option to the command to make sure it
converts with
> the H264 "Baseline" profile instead of the "Main" profile (which
Android
> doesn't support).
> 
> So, an example of the new script (the key change is the addition of
the
> option ":weightp=0"):
> 
> --------
> #!/bin/bash
> # Helps handling filenames with spaces
> IFS=`printf '\n\t'`
> 
> ## Set up parameters for encoding
> 
> # If you're skipping frames, increase FPS. If duplicating, decrease
FPS.
> # Usual values are 24000/1001 (23.976), 24, 25 (PAL), 30000/1001
(29.97), 30.
> #OFPS="-opfs 24"
> #OFPS="-ofps 30"
> #OFPS="-ofps 24000/1001"
> OFPS="-ofps 30000/1001"
> 
> # Aspect ratio of video
> ASPECT=16:9
> # Height of the output video (default for Droid: 480)
> SCALEH=480
> 
> # Width of the output video (default for Droid: 848) Yes, the screen's
> bigger,
> # but 854 isn't divisible by 16.
> SCALEW=848
> 
> # Log file name
> TEMP_FILE_DIR=`mktemp -d`
> 
> # This is the key parameter we gotta have from the user.
> # Spaces in the output file name are probably not a good idea.
> if [ -n "$1" ]; then
>   NEWNAME=$1
> else
>   echo Output file name not specified, aborting!
>   echo "Usage: " $0 " output-name input-video"
>   exit 0
> fi
> 
> # Do the actual encoding (2 passes)
> nice -n 10 /usr/bin/mencoder $2 \
> -o /dev/null -passlogfile ${TEMP_FILE_DIR}/pass.log -vf
> softskip,dsize=${ASPECT},scale=${SCALEW}:${SCALEH}:0,harddup -sws 10 -
> channels 2 -oac faac -faacopts mpeg=4:object=2:br=128 ${OFPS} -ovc
x264 -
> x264encopts
>
pass=1:bitrate=1000:turbo=2:me=umh:me_range=16:dct_decimate:nointerlaced
:no8x
>
8dct:nofast_pskip:trellis=0:partitions=p8x8,i4x4:mixed_refs:keyint=240:k
eyint
>
_min=24:psy_rd=0.8,0.0:frameref=1:bframes=0:b_adapt=0:noweight_b:direct_
pred=
>
none:subq=8:chroma_me:nocabac:aq_mode=1:deblock:vbv_maxrate=1500:vbv_buf
size=
> 1000:level_idc=30:threads=auto:ssim:psnr:weightp=0
> 
> nice -n 10 /usr/bin/mencoder $2 \
> -o ${TEMP_FILE_DIR}/${NEWNAME}.avi -passlogfile
${TEMP_FILE_DIR}/pass.log -vf
> softskip,dsize=${ASPECT},scale=${SCALEW}:${SCALEH}:0,harddup -sws 10
-af
> lavcresample=48000:16:1 -srate 48000 -channels 2 -oac faac -faacopts
> mpeg=4:object=2:br=128 ${OFPS} -ovc x264 -x264encopts
>
pass=2:bitrate=1000:me=umh:me_range=16:dct_decimate:nointerlaced:no8x8dc
t:nof
>
ast_pskip:trellis=0:partitions=p8x8,i4x4:mixed_refs:keyint=240:keyint_mi
n=24:
>
psy_rd=0.8,0.0:frameref=1:bframes=0:b_adapt=0:noweight_b:direct_pred=non
e:sub
>
q=8:chroma_me:nocabac:aq_mode=1:deblock:vbv_maxrate=1500:vbv_bufsize=100
0:lev
> el_idc=30:threads=auto:ssim:psnr:weightp=0
> 
> 
> # Extract the video and sound from the .avi
> /usr/bin/mencoder ${TEMP_FILE_DIR}/${NEWNAME}.avi -nosound -ovc copy
-of
> rawvideo -o ${TEMP_FILE_DIR}/h264_video.h264
> 
> /usr/bin/MP4Box -aviraw audio ${TEMP_FILE_DIR}/${NEWNAME}.avi -out
> ${TEMP_FILE_DIR}/aac.raw
> mv -f ${TEMP_FILE_DIR}/aac_audio.raw ${TEMP_FILE_DIR}/aac_audio.aac
> 
> # Package the video and sound into the .mp4
> /usr/bin/mplayer ${TEMP_FILE_DIR}/${NEWNAME}.avi -noconfig all -loop 1
-
> identify -nosound -vo null -nocache -frames 1 2>/dev/null | grep
> '^ID_VIDEO_FPS' | tail -n 1 | awk -F= '{print $2}' >
${TEMP_FILE_DIR}/mp4fps
> 
> /usr/bin/MP4Box -fps $(cat ${TEMP_FILE_DIR}/mp4fps) -tmp
${TEMP_FILE_DIR} -
> add ${TEMP_FILE_DIR}/h264_video.h264  -add
> ${TEMP_FILE_DIR}/aac_audio.aac#audio:name="LC-AAC Stereo"   -itags
> name="new_droid":comment="Tagged on $(date)"   -ipod -mpeg4 -new
> "${NEWNAME}.mp4"
> 
> # Clean up the intermediate stuff
> rm -rf ${TEMP_FILE_DIR}
> 
> --------
>  Sincerely,
> 
>  Ray Ingles                              (313) 227-2317
> 
>  Microsoft Windows - Flakey and built to stay that way.