so the command to convert .mov tp mp4 with least CPU utilization is
ffmpeg -i input.MOV -c:v copy -a:a copy -profile:v main -crf 23 -movflags
faststart output.MP4
I cannot specify scale or or setdar, correct?
On Wednesday, June 24, 2015 5:40 PM, Henk D. Schoneveld
<[email protected]> wrote:
On 24 Jun 2015, at 20:49, Dani A <[email protected]> wrote:
> Than you Henk, the other suggestions were great. so if when we copy mthe
> codec,what does FFMEPG do? just rename the file from .mov to mp4?
More or less. A file you can play consist of a container, mp4 mov ts flv avi
etc, think of it as a bottle
This container contains a video and an audio stream, each of which are encoded
with a codec.
Video codecs are h264 h265 xvid mpeg2
Audio codecs as aac ac3 etc
Further the container contains time codes and other things.
mov and mp4 are containers which have a lot in common but are not the same.
So with c:v copy a:a copy from mov to mp4 you ‘tell’ ffmpeg to put the video
and the audio stream, unaltered, from one bottle into another form of a bottle.
Not every container can hold all kinds of codecs. You have to google to find
your way, what can and can’t be done.
>
>
>
>
> On Wednesday, June 24, 2015 2:25 PM, Henk D. Schoneveld
><[email protected]> wrote:
>
>
>
> On 21 Jun 2015, at 21:59, Dani A <[email protected]> wrote:
>
>> Is there any way faster I can convert iphone .mov to mp4. for example,
>> copying the same codec instead of using the libx264 so it will be faster and
>> will not consume so much resources?
> You can use codec copy. But then it is impossible to scale.
> It’s one or the other.
> How much or little did my earlier suggestions help ?
>>
>>
>>
>> On Tuesday, June 16, 2015 7:42 AM, Henk D. Schoneveld
>><[email protected]> wrote:
>>
>>
>>
>> On 16 Jun 2015, at 05:13, Dani A <[email protected]> wrote:
>>
>>> I am using the below command to covert the .mov files to play html5, but it
>>> takes so much time..Is there another way to convert those files so they can
>>> play on html5 players but fast to convert...
>>> ffmpeg -i input.MOV -vf scale=720x406,setdar=16:9 -c:v libx264 -profile:v
>>> main -crf 20 -movflags faststart output.MOV
>> You can make it faster by lowering the quality, by increasing the crf value.
>> -crf 23 is the default value and is faster then -crf 20. It depends on the
>> kind of stream and on your eyes how high is acceptable to you. Another
>> option if player accepts this is anamorphic encoding, non-square pixels.
>>>
>>>
>>> Is there a faster codec to use compared to the libx264?
>> According to Eighth MPEG-4 AVC/H.264 Video Codecs Comparison … libx264 is
>> the fastest.
>>>
>>>
>>> _______________________________________________
>>> ffmpeg-user mailing list
>>> [email protected]
>>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>>
>> _______________________________________________
>> ffmpeg-user mailing list
>> [email protected]
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>>
>>
>> _______________________________________________
>> ffmpeg-user mailing list
>> [email protected]
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> _______________________________________________
> ffmpeg-user mailing list
> [email protected]
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
>
> _______________________________________________
> ffmpeg-user mailing list
> [email protected]
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
_______________________________________________
ffmpeg-user mailing list
[email protected]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user
_______________________________________________
ffmpeg-user mailing list
[email protected]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user
