Changes between Version 3 and Version 4 of FFprobeTips

Timestamp:

Apr 13, 2015, 3:54:21 AM (12 years ago)

Author:

llogan

Comment:

simplify

FFprobeTips

@@ -20 +20 @@
 
 {{{
-$ ffprobe -v error -show_format input.mkv
+$ ffprobe -v error -show_format -show_streams input.mp4
+[STREAM]
+index=0
+codec_name=h264
+codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
+profile=High
+codec_type=video
+codec_time_base=1/50
+codec_tag_string=avc1
+codec_tag=0x31637661
+width=320
+height=240
+has_b_frames=2
+sample_aspect_ratio=1:1
+display_aspect_ratio=4:3
+pix_fmt=yuv420p
+level=13
+color_range=N/A
+color_space=unknown
+color_transfer=unknown
+color_primaries=unknown
+chroma_location=left
+timecode=N/A
+refs=4
+is_avc=1
+nal_length_size=4
+id=N/A
+r_frame_rate=25/1
+avg_frame_rate=25/1
+time_base=1/12800
+start_pts=0
+start_time=0.000000
+duration_ts=384000
+duration=30.000000
+bit_rate=34761
+max_bit_rate=N/A
+bits_per_raw_sample=8
+nb_frames=750
+nb_read_frames=N/A
+nb_read_packets=N/A
+DISPOSITION:default=1
+DISPOSITION:dub=0
+DISPOSITION:original=0
+DISPOSITION:comment=0
+DISPOSITION:lyrics=0
+DISPOSITION:karaoke=0
+DISPOSITION:forced=0
+DISPOSITION:hearing_impaired=0
+DISPOSITION:visual_impaired=0
+DISPOSITION:clean_effects=0
+DISPOSITION:attached_pic=0
+TAG:language=und
+TAG:handler_name=VideoHandler
+[/STREAM]
+[STREAM]
+index=1
+codec_name=aac
+codec_long_name=AAC (Advanced Audio Coding)
+profile=LC
+codec_type=audio
+codec_time_base=1/44100
+codec_tag_string=mp4a
+codec_tag=0x6134706d
+sample_fmt=fltp
+sample_rate=44100
+channels=1
+channel_layout=mono
+bits_per_sample=0
+id=N/A
+r_frame_rate=0/0
+avg_frame_rate=0/0
+time_base=1/44100
+start_pts=-1024
+start_time=-0.023220
+duration_ts=1324024
+duration=30.023220
+bit_rate=56517
+max_bit_rate=N/A
+bits_per_raw_sample=N/A
+nb_frames=1293
+nb_read_frames=N/A
+nb_read_packets=N/A
+DISPOSITION:default=1
+DISPOSITION:dub=0
+DISPOSITION:original=0
+DISPOSITION:comment=0
+DISPOSITION:lyrics=0
+DISPOSITION:karaoke=0
+DISPOSITION:forced=0
+DISPOSITION:hearing_impaired=0
+DISPOSITION:visual_impaired=0
+DISPOSITION:clean_effects=0
+DISPOSITION:attached_pic=0
+TAG:language=und
+TAG:handler_name=SoundHandler
+[/STREAM]
 [FORMAT]
-filename=input.mkv
+filename=input.mp4
 nb_streams=2
 nb_programs=0
-format_name=matroska,webm
-format_long_name=Matroska / WebM
-start_time=0.000000
-duration=108.501000
-size=56164272
-bit_rate=4141106
+format_name=mov,mp4,m4a,3gp,3g2,mj2
+format_long_name=QuickTime / MOV
+start_time=-0.023220
+duration=30.024000
+size=368644
+bit_rate=98226
 probe_score=100
-TAG:encoder=libebml v0.7.7 + libmatroska v0.8.1
-TAG:creation_time=2008-10-22 06:43:30
+TAG:major_brand=isom
+TAG:minor_version=512
+TAG:compatible_brands=isomiso2avc1mp41
+TAG:title=FFprobe Tips
+TAG:encoder=Lavf56.15.101
 [/FORMAT]
 }}}
 
-If you only want `size=56164272` you can add `grep`:
-
-{{{
-$ ffprobe -v error -show_format input.mkv | grep size
-size=56164272
-}}}
-
-There are several methods to get only the value such as by using `awk`:
-
-{{{
-$ ffprobe -v error -show_format input.mkv | awk -F= '/size/{print $NF}'
-56164272
-}}}
-
-Or with `eval` and `echo`:
-
-{{{
-eval $(ffprobe -v error -show_format -show_entries format=size -of flat=s=_ input.mkv); echo $format_size
-56164272
+From the above example, if you would only want `size=368644`:
+{{{
+$ ffprobe -v error -show_entries format=size -of default=noprint_wrappers=1 input.mp4
+size=368644
+}}}
+
+If you would only want the value with no key:
+
+{{{
+$ ffprobe -v error -show_entries format=size -of default=noprint_wrappers=1:nokey=1 input.mp4
 }}}
 
 * `-v` sets the loglevel. `error` will omit the build and "generic" file information, but will allow errors to be shown in addition to the desired `ffprobe` output.
-* `-print_format` is useful to change the output format. Available formats are: default, compact, csv, flat, ini, json, xml.
+* `-print_format` (or the alias `-of`) is useful to change the output format. Available formats are: default, compact, csv, flat, ini, json, xml.
 
 == Duration ==
 
-{{{
-eval $(ffprobe -v error -show_format -of flat=s=_ input.mkv | grep format_duration); echo $format_duration
-}}}
-
-Alternatively you can omit `grep` by using the `-show_entries` option:
-
-{{{
-eval $(ffprobe -v error -show_format -of flat=s=_ -show_entries format=duration input.mkv); echo $format_duration
-}}}
-
-Example output in seconds:
-
-{{{
-108.501000
-}}}
-
-Adding the `-sexagesimal` option will use the `HOURS:MM:SS.MICROSECONDS` time unit format such as:
-
-{{{
-0:01:48.501000
+Format (container) duration:
+
+{{{
+$ ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 input.mp4
+30.024000
+}}}
+
+Adding the `-sexagesimal` option will use the `HOURS:MM:SS.MICROSECONDS` time unit format:
+
+{{{
+0:00:30.024000
+}}}
+
+Duration of the first video stream:
+
+{{{
+$ ffprobe -v error -select_streams v:0 -show_entries stream=duration -of default=noprint_wrappers=1:nokey=1 input.mp4
+30.000000
 }}}
 
@@ -90 +177 @@
 
 {{{
-eval $(ffprobe -v error -of flat=s=_ -select_streams v:0 -show_entries stream=avg_frame_rate input.mkv); echo $streams_stream_0_avg_frame_rate
+$ ffprobe -v error -select_streams v:0 -show_entries stream=avg_frame_rate -of default=noprint_wrappers=1:nokey=1 input.mp4
 }}}
 
@@ -109 +196 @@
 
 == Width x Height ==
+
+Using `eval`:
 
 {{{