ffprobe
Dies ist eine alte Version des Dokuments!
Inhaltsverzeichnis
ffprobe
> ffprobe -i Film.wmv -show_format > ffprobe -i Film.wmv -show_packets > ffprobe -i Film.wmv -show_streams
Zum auslesen der Video-Eigenschaften ist mediainfo deutlich besser geeignet! Es kann auch den Scan-Type (Progressive oder Interlaced) mit einer Ausnahme (manchmal gibt es anstelle von 50p, 50i aus) recht gut erkennen.
Video-Eigenschaften auslesen
Die wichtigsten Infos kann man mit diesem Kommando auslesen:
ffprobe Film.wmv ... Duration: 00:02:10.00, start: 0.000000, bitrate: 442 kb/s Stream #0.0(heb): Audio: wmav2, 22050 Hz, 1 channels, s16, 16 kb/s Stream #0.1(heb): Video: wmv3 (Main), yuv420p, 640x480, 413 kb/s, 20 tbr, 1k tbn, 1k tbc
Manchmal wird direkt vor "tbr" auch noch extra "fps" aufgeführt.
FFmpeg verwendet drei verschiedene Zeitangaben:
tbn = the time base in AVStream that has come from the container tbc = the time base in AVCodecContext for the codec used for a particular stream tbr = tbr is guessed from the video stream and is the value users want to see when they look for the video frame rate
25 fps - Bilder/Sekunde 25 tbr - geratene Bildwiederholrate des Datenstromes 90k tbn - Zeitbasis des AV-Kontainers 50 tbc - Zeitbasis im AV-Kodec-Kontext
Also ist die Angabe "tbr" im allgemeinen mit "fps" gleichzusetzen.
Man kann sich die Infos auch in einem anderen Format ausgeben lassen. Eines, welches besser maschinenlesbar ist:
> ffprobe -i Film.wmv -show_streams 2>/dev/null [STREAM] index=0 codec_name=wmav2 codec_long_name=Windows Media Audio 2 codec_type=audio codec_time_base=0/1 codec_tag_string=a[1][0][0] codec_tag=0x0161 sample_rate=22050.000000 channels=1 bits_per_sample=0 r_frame_rate=0/0 avg_frame_rate=250/81 time_base=1/1000 start_time=0.000000 duration=130.000000 TAG:language=heb [/STREAM] [STREAM] index=1 codec_name=wmv3 codec_long_name=Windows Media Video 9 codec_type=video codec_time_base=1/1000 codec_tag_string=WMV3 codec_tag=0x33564d57 width=640 height=480 has_b_frames=0 pix_fmt=yuv420p r_frame_rate=20/1 avg_frame_rate=0/0 time_base=1/1000 start_time=0.000000 duration=130.000000 TAG:language=heb [/STREAM]
> ffprobe -show_streams Film.mpg 2>/dev/null | sed 's/ /$/g' | tr -s '\n' ' ' | sed 's# \[/STREAM\]# [/STREAM]|#g' | tr -s '|' '\n' | fgrep codec_type=video | tr -s ' ' '\n' | sed 's/[$]/ /g' | egrep 'codec_time_base=|_frame_rate=|time_base=' codec_time_base=1/50 r_frame_rate=25/1 avg_frame_rate=25/1 time_base=1/90000
weitere Infos kann man sich mit diesem Kommando anzeigen lassen:
> ffprobe -show_format Film.wmv 2>/dev/null [FORMAT] filename=Film.wmv nb_streams=2 format_name=asf format_long_name=ASF format start_time=0.000000 duration=130.000000 size=7197119.000000 bit_rate=442899.000000 TAG:WMFSDKVersion=10.00.00.3802 TAG:WMFSDKNeeded=0.0.0.0000 TAG:IsVBR=0 [/FORMAT]
> ffprobe -show_format Film.mpg 2>/dev/null [FORMAT] filename=Du_bist_was_Du_isst.mpg nb_streams=3 format_name=mpeg format_long_name=MPEG-PS format start_time=0.287267 duration=0.928000 size=4992397312.000000 bit_rate=-2147483648.000000 [/FORMAT]
> ffprobe -show_packets Film.mpg 2>/dev/null | fgrep stream_index= | head -n1000 | sort | uniq stream_index=0 stream_index=1 stream_index=2
Show Streams
> ffprobe -v error -probesize 9223372036G -analyzeduration 9223372036G -show_streams -i "${1}"
[STREAM]
index=0
codec_name=mpeg2video
codec_long_name=MPEG-2 video
profile=Main
codec_type=video
codec_tag_string=[0][0][0][0]
codec_tag=0x0000
width=720
height=576
coded_width=0
coded_height=0
closed_captions=0
film_grain=0
has_b_frames=1
sample_aspect_ratio=16:15
display_aspect_ratio=4:3
pix_fmt=yuv420p
level=8
color_range=tv
color_space=unknown
color_transfer=unknown
color_primaries=unknown
chroma_location=left
field_order=progressive
refs=1
id=0x1e0
r_frame_rate=25/1
avg_frame_rate=25/1
time_base=1/90000
start_pts=25854
start_time=0.287267
duration_ts=146073600
duration=1623.040000
...
> ffprobe -v error -probesize 9223372036G -analyzeduration 9223372036G -show_streams -show_data -i "${1}"
[STREAM]
index=0
codec_name=mpeg2video
codec_long_name=MPEG-2 video
profile=Main
codec_type=video
codec_tag_string=[0][0][0][0]
codec_tag=0x0000
width=720
height=576
coded_width=0
coded_height=0
closed_captions=0
film_grain=0
has_b_frames=1
sample_aspect_ratio=16:15
display_aspect_ratio=4:3
pix_fmt=yuv420p
level=8
color_range=tv
color_space=unknown
color_transfer=unknown
color_primaries=unknown
chroma_location=left
field_order=progressive
refs=1
id=0x1e0
r_frame_rate=25/1
avg_frame_rate=25/1
time_base=1/90000
start_pts=25854
start_time=0.287267
duration_ts=146073600
duration=1623.040000
...
> ffprobe -v error -probesize 9223372036G -analyzeduration 9223372036G -show_streams -show_format -loglevel warning -print_format json -i "${1}"
{
"streams": [
{
"index": 0,
"codec_name": "mpeg2video",
"codec_long_name": "MPEG-2 video",
"profile": "Main",
"codec_type": "video",
"codec_tag_string": "[0][0][0][0]",
"codec_tag": "0x0000",
"width": 720,
"height": 576,
"coded_width": 0,
"coded_height": 0,
"closed_captions": 0,
"film_grain": 0,
"has_b_frames": 1,
"sample_aspect_ratio": "16:15",
"display_aspect_ratio": "4:3",
"pix_fmt": "yuv420p",
"level": 8,
"color_range": "tv",
"chroma_location": "left",
"field_order": "progressive",
"refs": 1,
"id": "0x1e0",
"r_frame_rate": "25/1",
"avg_frame_rate": "25/1",
"time_base": "1/90000",
"start_pts": 25854,
"start_time": "0.287267",
"duration_ts": 146073600,
"duration": "1623.040000",
...
Show Entries
> ffprobe -v error -probesize 9223372036G -analyzeduration 9223372036G -show_entries format_tags=title -of compact=p=0:nk=1 -i "${1}"
Winnetou - Eine neue Welt (Originaltitel: Winnetou & Old Shatterhand)
> ffprobe -v error -probesize 9223372036G -analyzeduration 9223372036G -show_entries format_tags=comment -of compact=p=0:nk=1 -i "${1}"
FSK 12 / 2016 / 117 Min. / imdb tt4893452 / Nik Xhelilaj, Wotan Wilke Möhring, Jürgen Vogel
> ffprobe -v error -probesize 9223372036G -analyzeduration 9223372036G -show_entries format_tags=description -of compact=p=0:nk=1 -i "${1}"
Apachenhäuptling Winnetou schließt Freundschaft mit dem deutschen Eisenbahningenieur Karl May, der später Old Shatterhand genannt wird.
> ffprobe -v error -probesize 9223372036G -analyzeduration 9223372036G -show_entries stream=codec_type -of default=noprint_wrappers=1 -i "${1}"
codec_type=video
codec_type=audio
codec_type=subtitle
> ffprobe -v error -probesize 9223372036G -analyzeduration 9223372036G -select_streams v:0 -show_entries stream=width,height,duration,bit_rate -of default=noprint_wrappers=1 -i "${1}"
width=720
height=576
duration=1623.040000
bit_rate=N/A
Spuren zählen:
> CODEC_TYPE="$(ffprobe -v error -probesize 9223372036G -analyzeduration 9223372036G -show_entries stream=codec_type -of default=noprint_wrappers=1 -i Film.mkv)"
> echo "${CODEC_TYPE}" | grep -F 'codec_type=video' | nl | awk '{sub("="," ");print $1,$3}' | tail -n1
1 video
> echo "${CODEC_TYPE}" | grep -F 'codec_type=audio' | nl | awk '{sub("="," ");print $1,$3}' | tail -n1
4 audio
> echo "${CODEC_TYPE}" | grep -F 'codec_type=subtitle' | nl | awk '{sub("="," ");print $1,$3}' | tail -n1
3 subtitle
/home/http/wiki/data/attic/ffprobe.1715551506.txt · Zuletzt geändert: von manfred