Adio Info showing different to Media Info

[jweaver]

I am just feeding back an observation.. its beyond minor but thought you might like to fix it at some point.

I have a bunch of files that according to MediaInfo have the following Audio settings:

ID                                      : 2
Format                                  : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                : A_AAC-2
Duration                                : 30 min 39 s
Bit rate                                : 317 kb/s
Channel(s)                              : 6 channels
Channel layout                          : C L R Ls Rs LFE
Sampling rate                            : 48.0 kHz
Frame rate                              : 46.875 FPS (1024 SPF)
Compression mode                        : Lossy
Stream size                              : 69.6 MiB (24%)
Language                                : English
Default                                  : Yes
Forced                                  : No


317kbs Bitrate is an odd number for sure, but thats what it is.... But according to Hybrid the Bitrate is 128kbs.

I have sent you logs from when I open this file.. If you want the file in question, just ask.

Jon

[Selur]

FFmpeg reported:

ID_DEMUXER=mkv ID_VIDEO_FORMAT=avc1 ID_VIDEO_BITRATE=0 ID_VIDEO_WIDTH=1280 ID_VIDEO_HEIGHT=720 ID_VIDEO_FPS=59.940 ID_VIDEO_ASPECT=0.0000 ID_AUDIO_FORMAT=MP4A ID_AUDIO_BITRATE=0 ID_AUDIO_RATE=48000 ID_AUDIO_NCH=6 ID_START_TIME=0.00 ID_LENGTH=1839.21 ID_SEEKABLE=1 ID_CHAPTERS=3 ========================================================================== Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders dec_audio: Allocating 1536000 + 131072 = 1667072 bytes for output buffer. FFmpeg's libavcodec audio codec INFO: libavcodec "aac" init OK! AUDIO: 48000 Hz, 6 ch, floatle, 128.0 kbit/1.39% (ratio: 16000->1152000)

Mplayer reports:

AUDIO: 48000 Hz, 6 ch, floatle, 128.0 kbit/1.39% (ratio: 16000->1152000) ID_AUDIO_BITRATE=128000 ID_AUDIO_RATE=48000 ID_AUDIO_NCH=6

MediaInfo reports:

Audio Count : 280 Count of stream of this kind : 1 Kind of stream : Audio Kind of stream : Audio Stream identifier : 0 StreamOrder : 1 ID : 2 ID : 2 Unique ID : 7351533584388041878 Format : AAC Format : AAC LC Format/Info : Advanced Audio Codec Low Complexity Commercial name : AAC Format_AdditionalFeatures : LC Codec ID : A_AAC-2 Duration : 1839210.000000 Duration : 30 min 39 s Duration : 30 min 39 s 210 ms Duration : 30 min 39 s Duration : 00:30:39.210 Duration : 00:30:34:15 Duration : 00:30:39.210 (00:30:34:15) Bit rate : 317375 Bit rate : 317 kb/s Channel(s) : 6 Channel(s) : 6 channels Channel positions : Front: L C R, Side: L R, LFE Channel positions : 3/2/0.1 Channel layout : C L R Ls Rs LFE Samples per frame : 1024 Sampling rate : 48000 Sampling rate : 48.0 kHz Samples count : 88282080 Frame rate : 46.875 Frame rate : 46.875 FPS (1024 SPF) Frame count : 86213 Compression mode : Lossy Compression mode : Lossy Delay : 0 Delay : 00:00:00.000 Delay, origin : Container Delay, origin : Container Delay relative to video : 0 Delay relative to video : 00:00:00.000 Stream size : 72964936 Stream size : 69.6 MiB (24%) Stream size : 70 MiB Stream size : 70 MiB Stream size : 69.6 MiB Stream size : 69.58 MiB Stream size : 69.6 MiB (24%) Proportion of this stream : 0.24008 Language : en Language : English Language : English Language : en Language : eng Language : en Default : Yes Default : Yes Forced : No

Hybrid simply doesn't change the bit rate since it already had one.

I can probably write a workaround for it, would need a short sample to reproduce and fix the issue.

Cu Selur

[jweaver]

Sample sent by email

I "cut" a 2 second clip and compressed the video right down to make it small enough to mail.. But Audio is untouched and clearly shows the issue.

Jon

[Selur]

Wrote a 'blind' workaround for it yesterday, which does seem to work.
-> try the dev version I send you a link to via PM

Cu Selur