Difference between revisions of "MPEG-1 to MXF using FFmpeg"

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[[Main Page]] > [[Documentation]] > [[Format-specific preservation issues]] > [[Moving Picture Experts Group file]] > MPEG to MXF using FFmpeg
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[[Main Page]] > [[Documentation]] > [[Media type preservation plans]] > [[MPEG-1 and MPEG-2]] > MPEG-1 to MXF using FFmpeg
  
*File used was CLIP07.MPG ("Animal Handling"), taken from [http://www.interniche.org/video_download.htm http://www.interniche.org/video_download.htm])
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*File used was CLIP07.MPG ("Animal Handling"), taken from [http://www.interniche.org/video_download.htm http://www.interniche.org/video_download.htm]
*Used the following command to convert the file: ffmpeg -i CLIP07.MPG -b 1245000 -ar 48000 CLIP07.mxf
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*Used the following command to convert the file: ffmpeg -i CLIP07.MPG -vcodec mpeg2video -qscale 1 -qmin 1 -intra -ar 48000 CLIP07.mxf
*Note: FITS tools don't recognize the MXF format and only generate a small amount of generic file metadata as a result. In addition, some of the elements that are considered significant properties are not extracted by FITS for the original file. Therefore some of the metadata in these tables are taken from the FFmpeg metadata that were generated during conversion. These are indicated by FFmpeg in brackets next to the value.
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*Note: FITS tools don't recognize the MXF format and only generate a small amount of generic file metadata as a result.
 
</br>
 
</br>
  
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|20,334,596 bytes
 
|20,334,596 bytes
 
|41,290,418 bytes
 
|41,290,418 bytes
|-
 
|Duration
 
|
 
|02:10 (approx) (FITS); 001:48.25 (FFmpeg)
 
|001:48.25 (FFmpeg)
 
|-
 
|Bit rate
 
|
 
|1245 kb/s
 
|1245 kb/s (FFmpeg)
 
 
|-
 
|-
 
|Streamcount
 
|Streamcount
 
|imageStreams, audioStreams
 
|imageStreams, audioStreams
|2 (FFmpeg)
+
|2
|2 (FFmpeg)
+
|2
 
|-
 
|-
 
|FrameCount
 
|FrameCount
 
|length
 
|length
|2706 (FFmpeg)
+
|2706
|2706 (FFmpeg)
+
|2706
 
|-
 
|-
 
|ImageWidth
 
|ImageWidth
 
|width
 
|width
 
|352
 
|352
|352 (FFmpeg)
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|352
 
|-
 
|-
 
|ImageHeight
 
|ImageHeight
 
|height
 
|height
 
|288
 
|288
|288 (FFmpeg)
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|288
 
|-
 
|-
 
|BitDepth
 
|BitDepth
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|PAR (pixel aspect ratio)/DAR (display aspect ratio)
 
|PAR (pixel aspect ratio)/DAR (display aspect ratio)
 
|aspectRatio
 
|aspectRatio
|4:3 (FITS); PAR 178:163 DAR 1958:1467 (FFmpeg)
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|PAR 178:163 DAR 1958:1467
|PAR 12:11 DAR v:3 (FFmpeg)
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|PAR 178:163 DAR 1958:1467
 
|-
 
|-
 
|FrameRate
 
|FrameRate
 
|frameRate
 
|frameRate
|25 per second (FFmpeg)
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|25 per second
|25 per second (FFmpeg)
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|25 per second
 
|-
 
|-
 
|
 
|
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|Compression
 
|Compression
 
|codec
 
|codec
|mpeg1video (FFmpeg)
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|mpeg1video
|mpeg2video (FFmpeg)
+
|mpeg2video
 
|-
 
|-
 
|
 
|
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|-
 
|-
 
|Codec
 
|Codec
|MPEG 1 Audio, Layer 2 (MP2) (FFMpeg)
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|MPEG 1 Audio, Layer 2 (MP2)
|pcm_s16le (FFmpeg)
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|PCM
 
|-
 
|-
 
|Channels
 
|Channels
|2 (FFmpeg)
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|2
|2 (FFmpeg)
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|2
|-
 
|Bit rate
 
|224 kpb/s (FFmpeg)
 
|1536 kpb/s (FFmpeg)
 
 
|-
 
|-
 
|SampleRate
 
|SampleRate
|44100 HZ (FFmpeg)
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|44100 HZ
|48000 HZ (FFmpeg)
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|48000 HZ
 
|-
 
|-
 
|BitDepth
 
|BitDepth
|16 (FFmpeg)
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|16
|16 (FFmpeg)
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|16
 
|-}</br>
 
|-}</br>

Latest revision as of 18:15, 11 August 2010

Main Page > Documentation > Media type preservation plans > MPEG-1 and MPEG-2 > MPEG-1 to MXF using FFmpeg

  • File used was CLIP07.MPG ("Animal Handling"), taken from http://www.interniche.org/video_download.htm
  • Used the following command to convert the file: ffmpeg -i CLIP07.MPG -vcodec mpeg2video -qscale 1 -qmin 1 -intra -ar 48000 CLIP07.mxf
  • Note: FITS tools don't recognize the MXF format and only generate a small amount of generic file metadata as a result.


File/video stream properties[edit]

Property Significant property name Original Normalized
FileSize 20,334,596 bytes 41,290,418 bytes
Streamcount imageStreams, audioStreams 2 2
FrameCount length 2706 2706
ImageWidth width 352 352
ImageHeight height 288 288
BitDepth bitDepth
colourModel
colourSpace yuv420p yuv420p
PAR (pixel aspect ratio)/DAR (display aspect ratio) aspectRatio PAR 178:163 DAR 1958:1467 PAR 178:163 DAR 1958:1467
FrameRate frameRate 25 per second 25 per second
lossless No No
compressionRatio
Compression codec mpeg1video mpeg2video
interlace
metadata


Audio stream properties[edit]

Property Original Normalized
Codec MPEG 1 Audio, Layer 2 (MP2) PCM
Channels 2 2
SampleRate 44100 HZ 48000 HZ
BitDepth 16 16