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video_taking_montage_conferencing [2018/02/03 17:58]
127.0.0.1 external edit
video_taking_montage_conferencing [2019/07/27 09:57] (current)
anton
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-**    How to convert Canon HD *.mts files and batch process them?**+** List of video edititng software ​**
  
-(old) as complexity of Cinelerra and direct supported ​import ​in Kdeinlive, I decided ​to move on.+Requirements:​ 
 +  * import ​material 
 +  * drag to timeline 
 +  * dual-monitor 
 +  * multi-camera shooting (several time-lines, channels) 
 +  * move several clips, expanding whole projects (not that everything rest after is messed up)
  
-(ffmpeg changed a name)+Variants: 
 +  * <​del>​pitivi</​del>​ 
 +  * <​del>​openshot</​del>​ 
 +  * avidemux ​(transcoder) 
 +  * <​del>​blender</​del>​ 
 +  * <​del>​cinelerra</​del>​ 
 +  * kdenlive (simple) 
 +  * **lightworks** 
 +  * <​del>​lives</​del>​ 
 +  * **shotcut** 
 +  * **flowblade** 
 +  * <​del>​vidcutter</​del>​ 
 +  * **DaVinci Resolve**
  
-<​code>​ 
-sudo apt-get install libav-tools 
-sudo apt-get install libavcodec-extra-53 
-</​code>​ 
  
-if you prefer, use command line interface 
  
-<​code>​ 
-sudo apt-get install winff 
-wget http://​www.g-raffa.eu/​Cinelerra/​HOWTO/​Cinelerra4Grandma.wff 
-</​code>​ 
  
-import preset file to winff 
  
-choose whatever you want, for cinelerra advised: 
  
-"​Cinelerra intermediate formats > mjpeg , (convert)" or "​DNxHD"​+[[howto ​convert ​canon mts files]]
  
-after one evening, I realised that my Canon Legria HF M307 was recording audio stream in 256 kb/s and 48000 sample rate. 
- 
-I took a small video, about 10s to play with, because 60sec file is big for testing. 
- 
-and Cinelerra would import such audio steam and hangs with internal Canon codec. 
- 
-So I decided to try to transcode streams inside of *.mts container with follow command: 
- 
-avconv -i cup.mts -ar 44100 -ab 128k -vcodec dnxhd -b 185M cupED.mov 
- 
-let's look what happened: 
- 
-<​code>​ 
-anton@LNX-ANTON:​~/​Videos/​test$ ls -l 
-</​code>​ 
- 
-size is changed, but not dramaticly, it is good 
- 
-use "​avconv -i file" for information 
- 
-<​code>​ 
-anton@LNX-ANTON:​~/​Videos/​test$ avconv -i cup.mts 
-anton@LNX-ANTON:​~/​Videos/​test$ avconv -i cup128k.mov 
-</​code>​ 
- 
-That what had to be proven []. 
- 
-cinelerra, load files, cupED.mov 
- 
-add effect (title) 
- 
-file, render 
- 
-path, name i.e. "​RENDERED.mov"​ 
- 
-file format: quicktime for linux, 
- 
-(x) render audio tracks (settings: MPEG-4 Audio, 128000, 100%) 
- 
-(x) render video tracks (settings: MPEG-4 Video, 2000000 (x) fix bitrate, 500000, 10 ( ) fix quantization ( ) interlaced, keyframe interval 45) 
- 
-insert nothing 
- 
-"​OK"​ 
- 
-<​code>​ 
-anton@LNX-ANTON:​~/​Videos/​test$ avconv -i RENDERED.mov 
-</​code>​ 
- 
-which is OKAY! :v) 
- 
-to summarize this task: it is necessary to check which quality is a file and how to transcode it. 
- 
-  
- 
-Today I took a test session and after copying from SD card to HDD *.MTS files, I had to batch convert them. Using shell "​for"​ loop: 
- 
-<​code>​ 
-anton@LNX-ANTON:​~/​Videos/​2013 03 06 - myyrmanni/​PRIVATE/​AVCHD/​BDMV/​STREAM$ for file in *.MTS; do avconv -i "​$file"​ -ar 44100 -ab 128k -vcodec dnxhd -b 185M "​$file"​.mov;​ done 
-</​code>​ 
- 
-worked fine, and then size check: 
- 
-open with Video player to check codec info: 
- 
-old >> 48000 Hz / 256 kbps, new >> 44100 Hz / 134 kbps 
- 
-last check with Cinelerra, file, new, load files,​insertion strategy "​replace currect project and concatenate tracks",​ extension "​*.mov",​ select all, ok, shift+scrollUp,​ check end of video 
- 
-*.MTS files deleted 
- 
-Final files are very large 117 Mb transcoded into 2,8 Gb. That is not actually what I needed. 
- 
-You can also try to transcode only audio track: 
- 
-<​code>​ 
-avconv -i cup.mts -ar 44100 -ab 128k -vcodec copy cupED.mov 
-</​code>​ 
- 
-After second evening of discovering of disadvantages of transcoding / moving / importing *.MTS files. Suddenly I realised, that, really, I would not do it all the time. There are standartization of AVCHD on Wikipedia, that tells that directly format'​s support is integrated into Linux soft: Blender, Kdenline, LiVeS, Openshot. 
- 
-Second issue, I discovered from the same document that optimal quality is 1920x1080 25fps interlaced, not 50 fps as I thought. 
- 
-Third issue is a final media, if it will be as a final target of video project would be Blu-Ray disc, that is in its maximum resolution 1920x1080 30i, and not 50 fps again as I thought before. Normal DVD is 720x576 25i 
- 
-Fourth issue is that less frames is used, more effective is editing process. =lighter for pc. 
- 
-I read camcoder'​s manual about formats and decided what to use when recording video. 
- 
-Revision: 2014 11 14 
  
  
video_taking_montage_conferencing.1517673492.txt.gz · Last modified: 2018/02/03 17:58 by 127.0.0.1