[FFmpeg-user] ffprobe aac profile

[Christian Ebert]

* Carl Eugen Hoyos on Friday, February 21, 2014 at 08:30:17 +0000
> Young Kim <shadowing71 <at> gmail.com> writes:
> 
>> I'm currently trying to use ffprobe as a means for 
>> finding the metadata of videos. However, it doesn't 
>> seem as if it can display HE-AAC or LE-AAC for aac 
>> audio files.
> 
> Command line and complete, uncut console output missing.

This one is more specific:
http://trac.ffmpeg.org/ticket/3361
but mentions also that profile is always unknown.

A quick one:

$ ffprobe -select_streams a -show_streams test.mp4
ffprobe version N-60710-g61d5970 Copyright (c) 2007-2014 the FFmpeg developers
  built on Feb 18 2014 12:17:56 with Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
  configuration: --enable-gpl --enable-version3 --enable-nonfree --disable-ffserver --enable-shared --enable-libfdk-aac --enable-libx265 --enable-libx264 --enable-libxvid --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --extra-cflags=-I/sw/include --extra-libs=-L/sw/lib
  libavutil      52. 64.100 / 52. 64.100
  libavcodec     55. 52.102 / 55. 52.102
  libavformat    55. 33.100 / 55. 33.100
  libavdevice    55. 10.100 / 55. 10.100
  libavfilter     4.  1.102 /  4.  1.102
  libswscale      2.  5.101 /  2.  5.101
  libswresample   0. 17.104 /  0. 17.104
  libpostproc    52.  3.100 / 52.  3.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fc4a2807600] stream 0, timescale not set
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Movies/amazonaws/media/ccc_trailer1.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 1
    compatible_brands: isom
    creation_time   : 2013-08-25 09:04:49
    title           : <title>
  Duration: 00:04:14.24, start: 0.114694, bitrate: 935 kb/s
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 867 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 64 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
    Stream #0:2: Video: mjpeg, yuvj420p(pc), 640x480 [SAR 1:1 DAR 4:3], 90k tbr, 90k tbn, 90k tbc
[STREAM]
index=1
codec_name=aac
codec_long_name=AAC (Advanced Audio Coding)
profile=unknown
codec_type=audio
codec_time_base=1/44100
codec_tag_string=mp4a
codec_tag=0x6134706d
sample_fmt=fltp
sample_rate=44100
channels=2
channel_layout=stereo
bits_per_sample=0
id=N/A
r_frame_rate=0/0
avg_frame_rate=0/0
time_base=1/44100
start_pts=-5058
start_time=-0.114694
duration_ts=11218944
duration=254.397823
bit_rate=64000
nb_frames=5478
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=eng
TAG:handler_name=SoundHandler
[/STREAM]

You can use the sample attached to the ticket for this one as
well:
http://trac.ffmpeg.org/attachment/ticket/3361/fdk-he-mono.m4a

-- 
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