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No sound with .mov, PCM S24 BE (in24)
Posted: 22 Jul 2013 20:36
by eminenz
I'm grateful to be able to play Quicktime .mov files with VLC, but don't get any sound with a file
for which VLC indicates the audio codec as PCM S24 BE (in24).
(Video codec is DV video (dvcp).)
Another Quicktime .mov file with MPEG AAC Audio (mp4a) plays fine.
I've updated my WIn7 64-bit codecs using version 9.9.9
of K-Lite Codec Pack 64-bit.
Any ideas how to resolve the problem and get sound?
Thanks so very much!
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 22 Jul 2013 21:03
by Rémi Denis-Courmont
Try with VLC 2.1 prereleases. If it still fails file a bug and attach a sample file.
Posted: 27 Jul 2013 11:35
by rvdboom
It may not be related at all, but I currently struggle with the recent versions of alsa and vlc to get proper sound support. I had an issue with downmixing of 5.1 to stereo that I thought was because of newer VLC channel map support, until I realized that I also had problems with the ALSA provided aplay.
I have 24 bits 5.1 Wav sound tracks. If I play them with just the following command, it works :
Code: Select all
aplay -v Master51FemmeSqueletteDCP_24fps.wav
Lecture WAVE 'Master51FemmeSqueletteDCP_24fps.wav' : Signed 24 bit Little Endian in 3bytes, Fréquence 48000 Hz, 6 Canaux
Plug PCM: Route conversion PCM (sformat=S32_LE)
Transformation table:
0 <- 0
1 <- 1
Its setup is:
stream : PLAYBACK
access : RW_INTERLEAVED
format : S24_3LE
subformat : STD
channels : 6
rate : 48000
exact rate : 48000 (48000/1)
msbits : 24
buffer_size : 8192
period_size : 1024
period_time : 21333
tstamp_mode : NONE
period_step : 1
avail_min : 1024
period_event : 0
start_threshold : 8192
stop_threshold : 8192
silence_threshold: 0
silence_size : 0
boundary : 4611686018427387904
Slave: Soft volume PCM
Control: PCM Playback Volume
min_dB: -51
max_dB: 0
resolution: 256
Its setup is:
stream : PLAYBACK
access : MMAP_INTERLEAVED
format : S32_LE
subformat : STD
channels : 2
rate : 48000
exact rate : 48000 (48000/1)
msbits : 32
buffer_size : 8192
period_size : 1024
period_time : 21333
tstamp_mode : NONE
period_step : 1
avail_min : 1024
period_event : 0
start_threshold : 8192
stop_threshold : 8192
silence_threshold: 0
silence_size : 0
boundary : 4611686018427387904
Slave: Direct Stream Mixing PCM
Its setup is:
stream : PLAYBACK
access : MMAP_INTERLEAVED
format : S32_LE
subformat : STD
channels : 2
rate : 48000
exact rate : 48000 (48000/1)
msbits : 32
buffer_size : 8192
period_size : 1024
period_time : 21333
tstamp_mode : NONE
period_step : 1
avail_min : 1024
period_event : 0
start_threshold : 8192
stop_threshold : 8192
silence_threshold: 0
silence_size : 0
boundary : 4611686018427387904
Hardware PCM card 0 'HDA ATI SB' device 0 subdevice 0
Its setup is:
stream : PLAYBACK
access : MMAP_INTERLEAVED
format : S32_LE
subformat : STD
channels : 2
rate : 48000
exact rate : 48000 (48000/1)
msbits : 32
buffer_size : 8192
period_size : 1024
period_time : 21333
tstamp_mode : ENABLE
period_step : 1
avail_min : 1024
period_event : 0
start_threshold : 1
stop_threshold : 4611686018427387904
silence_threshold: 0
silence_size : 4611686018427387904
boundary : 4611686018427387904
appl_ptr : 0
hw_ptr : 0
If I play them forcing one of the Alsa PCM, I get an error because of unsupported sound format :
Code: Select all
bash-4.2$ aplay -v -D surround51 Master51FemmeSqueletteDCP_24fps.wav
Lecture WAVE 'Master51FemmeSqueletteDCP_24fps.wav' : Signed 24 bit Little Endian in 3bytes, Fréquence 48000 Hz, 6 Canaux
aplay: set_params:1233: Ce format d'échantillonage n'est pas disponible
Available formats:
- S16_LE
- S32_LE
bash-4.2$ aplay -v -D front Master51FemmeSqueletteDCP_24fps.wav
Lecture WAVE 'Master51FemmeSqueletteDCP_24fps.wav' : Signed 24 bit Little Endian in 3bytes, Fréquence 48000 Hz, 6 Canaux
aplay: set_params:1233: Ce format d'échantillonage n'est pas disponible
Available formats:
- S16_LE
- S32_LE
bash-4.2$
I'm not very knowledgeable about how sound works on Linux and am thus easily baffled. Maybe that's normal but it doesn't seem to me to be the case. The Alsa users mailing list provided no feedback on the subject.
The point is : have your tried to watch your file using another Alsa device than the current one?
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 27 Jul 2013 11:38
by Rémi Denis-Courmont
Please don't hijack threads.
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 27 Jul 2013 12:09
by rvdboom
I didn't intend to, I just thought that maybe the initial poster had issues with 24bits PCM because of the same problems with Alsa that I have. But then again, that's probably because I don't understand his problem no more than I understand mine.
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 17 Dec 2013 06:33
by Lubricator
I have the same problem with a MOV-file.
Stream 0
Type: Audio
Codec: PCM S32 BE (in32) <-- Not exactly as in the topic.
Language: English
Channels: Stereo
Sample rate: 48000 Hz
Bits per sample: 32
Stream 1
Type: Video
Codec: H264 - MPEG-4 AVC (part 10) (avc1)
Language: English
Resolution: 1920x1080
Frame rate: 23.976000
Decoded format: Planar 4:2:0 YUV
Using VLC media player 2.1.2 now. Previous version had the same problem too.
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 17 Dec 2013 08:35
by Jean-Baptiste Kempf
Please share the file.
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 17 Dec 2013 20:38
by Lubricator
How? I wouldn't mind sharing it, but the file is copyrighted and pornographic. I tried editing out a short sample, but the video editor I used did reencoding.
BTW, there is audio when I play the movie in the video editor.
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 18 Dec 2013 00:42
by Jean-Baptiste Kempf
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 18 Dec 2013 21:56
by Lubricator
What do I enter into the "Trac Ticket" field at
http://streams.videolan.org/upload/ or should I leave it blank?
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 20 Dec 2013 00:53
by Lubricator
Never mind. I finished uploading now and left Trac Ticket blank.
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 23 Dec 2013 20:23
by Jean-Baptiste Kempf
OK.
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 23 Dec 2013 20:36
by Jean-Baptiste Kempf
I just fixed it for VLC 2.2.0
Re: No sound with .mov, PCM S24 BE (in24)
Posted: 26 Dec 2013 01:12
by Lubricator
That's good news. Good job!