[MEncoder-users] Encoded file doesn't sync with iPhone [SOLVED]

[Jörgen Isaksson]

15 mar 2010 kl. 23.05 skrev Grozdan <neutrino8 at gmail.com>:

> 2010/3/15 Jörgen Isaksson <jogga at me.com>:
>>
>> On 15 mar 2010, at 16.43, Grozdan wrote:
>>
>>> 2010/3/15 Jörgen Isaksson <jogga at me.com>
>>>>
>>>> On 15 mar 2010, at 15.34, Christian Ebert wrote:
>>>>
>>>>> * Jörgen Isaksson on Monday, March 15, 2010 at 15:16:33 +0100
>>>>>> On 15 mar 2010, at 12.46, Grozdan wrote:
>>>>>>> Encode as usual to an AVI with mencoder (make sure you add -vf  
>>>>>>> harddup to
>>>>>                         ^^^
>>>>>>> your video filters chain)
>>>>>>>
>>>>>>> After done, use MP4Box to dump the video and audio, then mux  
>>>>>>> it together
>>>>>>>
>>>>>>> MP4Box -aviraw video file.avi
>>>>>>> MP4Box -aviraw audio file.avi
>>>>>>>
>>>>>>> if your audio is AAC, you have to rename the dumped MP4Box  
>>>>>>> audio file to
>>>>>>> have the .aac extension or else, MP4Box won't accept files  
>>>>>>> with the .raw
>>>>>>> extension. Then, mux it together like this
>>>>>>>
>>>>>>> MP4Box -fps <fps-of-video> -add video.h264 -add audio.aac - 
>>>>>>> ipod -mpeg4 -new
>>>>>>> output.mp4
>>>>>>
>>>>>> I'm sorry, but I still can't get it to work???
>>>>>
>>>>> You're still using the lavf muxer (-of lavf) which is broken. As
>>>>> Grozdan stated, you have to go the avi route.
>>>>>
>>>>>> It just doesn't sync with the iPhone.
>>>>>>
>>>>>> This is what I tried. First I encode the video to mp4 like  
>>>>>> this. The avi suggestion didn't work.
>>>>>>
>>>>>> mencoder movie.mov -o output.mp4 -vf scale=480:-10,harddup - 
>>>>>> lavfopts format=mp4 -faacopts mpeg=4:object=2:raw:br=128 -oac  
>>>>>> faac -ovc x264 -sws 9 -x264encopts  
>>>>>> nocabac:level_idc= 
>>>>>> 30: 
>>>>>> bframes= 
>>>>>> 0:g 
>>>>>> lobal_header:threads= 
>>>>>> auto:subq= 
>>>>>> 5:f 
>>>>>> rameref=6:partitions=all:trellis=1:chroma_me:me=umh:bitrate=500  
>>>>>> -of lavf
>>>>>
>>>>> mencoder -of avi -o output.avi ...
>>>>>
>>>>> And then the MP4Box commands Grozdan gave you.
>>>>
>>>> I'm really sorry... but using the Grozdan method still doesn't  
>>>> work for me. I'm not using -of lavf anymore. Encoding to an avi  
>>>> container like this.
>>>>
>>>> mencoder input.mov -of avi -o output.avi -vf  
>>>> scale=480:-10,harddup -faacopts mpeg=4:object=2:raw:br=128 -oac  
>>>> faac -ovc x264 -sws 9 -x264encopts  
>>>> nocabac:level_idc= 
>>>> 30: 
>>>> bframes= 
>>>> 0:g 
>>>> lobal_header:threads= 
>>>> auto:subq= 
>>>> 5:frameref=6:partitions=all:trellis=1:chroma_me:me=umh:bitrate=500
>>>>
>>>> MP4Box -aviraw video output.avi
>>>> MP4Box -aviraw audio output.avi
>>>>
>>>> renaming output_audio.raw to output_audio.aac as Grozdan  
>>>> mentioned and muxing.
>>>>
>>>> MP4Box -fps 25 -add output_video.h264 -add output_audio.aac -ipod  
>>>> -mpeg4 -new output.mp4
>>>>
>>>> AVC-H264 import - frame size 480 x 272 at 25.000 FPSImport  
>>>> results: 272 samples - Slices: 10 I 262 P 0 B - 0 SEI - 6 IDR
>>>> AAC import - sample rate 44100 - MPEG-4 audio - 2 channels
>>>> Setting up iTunes/iPod file...
>>>> Forcing AVC/H264 SAR to 1:1...
>>>> Saving output.mp4: 0.500 secs Interleaving
>>>>
>>>> I end up with a file with an empty video and audio track???
>>>>
>>>> Do you have a workflow for this that actually works? It feels  
>>>> like I'm so close...
>>>
>>> try h264enc, it has presets for iphone/ipod and muxes to mp4 as  
>>> well.
>>> I don't buy shit from Apple, but I know people have successfully  
>>> used
>>> to encode for their devices
>>>
>>> http://h264enc.sourceforge.net/
>>>
>>> Make sure your gpac/mp4box is up to date
>>
>> It seems like the x264 encoding settings I was using didn't produce  
>> a baseline h264 track as I expected. I used trial and error and  
>> found a solution that actually syncs with my iPhone without the  
>> need to use mp4box for muxing. Nice!
>>
>> This is what I'm using at the moment if someone is interested.
>>
>> mencoder input.mov -o output.m4v \
>> -vf scale=480:-10,harddup \
>> -of lavf -lavfopts format=ipod \
>> -alang en \
>> -oac faac -faacopts br=128:mpeg=4:object=2:raw \
>> -ovc x264 -x264encopts  
>> bitrate= 
>> 800: 
>> nocabac:level_idc= 
>> 30: 
>> bframes= 
>> 0:g 
>> lobal_header:threads= 
>> auto:subq= 
>> 5:f 
>> rameref= 
>> 6:partitions=all:trellis=1:chroma_me:me=umh:weightp=0:8x8dct=0
>
> trellis=1 will do nothing when cabac is disabled as it depends on it.
> So setting it to 1 (enable) will do nothing. Also, are you sure the
> iphone can take 6 frame references without disturbing the picture?

I'm not sure of anything regarding this. I'm just saying that it's  
finally syncing with the iPhone. I will have to dig deeper into all  
those options now that I have something to work with. It seems like  
the last two parameters did the trick?

But thx for all the help and friendly replies from all list members.

/ Jorgen

>
>>
>> Best regards / Jorgen
>>
>>
>>
>>
>>
>>
>>
>>
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