Hello,
I would need similar or same help.
My scenario:
I have fullHD source video AVCHD in M2TS file.
I would like to encode MPEG DASH set with valid MPD manifest for one audio
track and three to four video tracks with different resolutions and
bitrates.
I spent a week on Google without big success.
Here is my batch using ffmpeg, x264 and mp4box:
set _jmeno=sourceFileNameOnly
ffmpeg.exe -i %_jmeno%.m2ts -b:a 128k -ac 2 -vn -y audio.aac
x264 --output video_2400k.264 --fps 25 --preset slow --bitrate
2400 --vbv-maxrate 4800 --vbv-bufsize 9600 --min-keyint 50 --keyint
50 --scenecut 0 --no-scenecut --pass 1 --no-interlaced --video-filter
"resize:width=1280,height=720" %_jmeno%.m2ts
x264 --output video_1200k.264 --fps 25 --preset slow --bitrate
1200 --vbv-maxrate 2400 --vbv-bufsize 4800 --min-keyint 50 --keyint
50 --scenecut 0 --no-scenecut --pass 1 --no-interlaced --video-filter
"resize:width=864,height=486" %_jmeno%.m2ts
x264 --output video_600k.264 --fps 25 --preset slow --bitrate
600 --vbv-maxrate 1200 --vbv-bufsize 2400 --min-keyint 50 --keyint
50 --scenecut 0 --no-scenecut --pass 1 --no-interlaced --video-filter
"resize:width=640,height=360" %_jmeno%.m2ts
md %_jmeno%
MP4Box -add audio.aac -fps 25 a.mp4
MP4Box -add video_2400k.264 -fps 25 v_2400k.mp4
MP4Box -add video_1200k.264 -fps 25 v_1200k.mp4
MP4Box -add video_600k.264 -fps 25 v_600k.mp4
MP4Box -dash 10000 -frag 2000 -rap -profile full -url-template -base-url
"./" -bs-switching no -out %_jmeno%\dash.mpd a.mp4 v_2400k.mp4 v_1200k.mp4
v_600k.mp4
It generates some set and manifest, but it doesn't play on webserver.
Any help will be appreciated
Thanks a lot
Mirek
-----Původní zpráva-----
From: Jim Shupert, Jr.
Sent: Saturday, February 14, 2015 3:03 AM
To: FFmpeg user questions
Subject: Re: [FFmpeg-user] Different bitrates for videos and creation of
manifest files
Hello,
We have few videos, and we want generate different bitrates for those
videos and create a manifest file for it..
Could you please tell us the steps we need to use for this..
Thank you,
Ria
Friend Ria
It might be said that your request is to vague - not enough info.
so
lets proceed like this
1_ do you have ffmpeg installed / built ? can you run it?
2_ what are your "few videos"?
a desired answer would be like: we have dv25 in a mov or file.mp4 from a
camera
3_ what did you wish for in " different datarates"?
A good next step is for you to look at the documentation and examples.
Try to make "something" and paste all that here.
and we will see.
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