[MPlayer-users] FAAD bitrate never gets set, and channels always fall back to 2 (stereo)

Blammo blammo.doh at gmail.com
Tue Dec 2 22:44:30 CET 2008


On Thu, May 8, 2008 at 5:51 AM, Nico Sabbi <Nicola.Sabbi at poste.it> wrote:
>> IMO setting it to 128kbps if it's not
>> defined in the header seems like a hack to me (as it is clearly
>> commented).  I wasn't trying to be rude, I was just trying to
>> understand why it's being done that way.

Any idea if this issue is being addressed? I'm on the latest CVS, and
not able to playback aac 5.1 encoded content.

ffmpeg says:
    Stream #0.1(und): Audio: aac, 48000 Hz, 5.1, s16

mplayer says:
===========================
==> Found audio stream: 1
[lavf] Audio stream found, -aid 1
======= WAVE Format =======
Format Tag: 255 (0xFF)
Channels: 6
Samplerate: 48000
avg byte/sec: 0
Block align: 1
bits/sample: 16
cbSize: 2
Unknown extra header dump: [11] [b0]
==========================================================================

==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
[NULL @ 0xbe3500]AVOption type 2 of option channel_layout not implemented yet
[NULL @ 0xbe3500]AVOption type 2 of option request_channel_layout not
implemented yet
INFO: libavcodec init OK!
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================

==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
dec_audio: Allocating 4608 bytes for input buffer.
dec_audio: Allocating 49152 + 65536 = 114688 bytes for output buffer.
FAAD: Decoder init done (0Bytes)!
FAAD: Negotiated samplerate: 48000Hz  channels: 6
FAAD: compressed input bitrate missing, assuming 128kbit/s!
AUDIO: 48000 Hz, 2 ch, s16le, 128.0 kbit/8.33% (ratio: 16000->192000)
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio) decoder)
==========================================================================



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