Opened 14 years ago
Closed 13 years ago
#8596 closed defect (Fixed)
No audio with DVB recording with 2 audio tracks (0 channels)
Reported by: | otto at kolsi dot fi | Owned by: | danielk |
---|---|---|---|
Priority: | minor | Milestone: | unknown |
Component: | MythTV - Audio Output | Version: | Master Head |
Severity: | medium | Keywords: | |
Cc: | Ticket locked: | no |
Description
With particular recording, there's no audio if playback is started from the middle of the program (bookmark). When playing from the beginning, audio works fine. This recording has 2 tracks but both are identified to have 0 channels. I've attached logs with "-v important,general,audio".
Similar issue was last fixed 3 years ago: #3731.
Attachments (1)
Change History (10)
Changed 14 years ago by
Attachment: | mfe-no-audio.txt added |
---|
comment:1 Changed 14 years ago by
Owner: | changed from JYA to markk |
---|---|
Status: | new → assigned |
comment:2 Changed 14 years ago by
Resolution: | → fixed |
---|---|
Status: | assigned → closed |
comment:3 Changed 14 years ago by
Resolution: | fixed |
---|---|
Status: | closed → new |
This no-audio problem is still present with current trunk. I've uploaded sample file (35M) to: http://filebin.ca/thvvek
Problem should occur with following steps:
- import sample file into recordings using myth.rebuilddatabase.pl and let it re-build the seektable
- start to watch the recording from the beginning
- when the actual program starts (a man within church), exit recording and save a bookmark
- go back to watch the recording from the bookmark -> no audio!
I first tried to cut a smaller sample from the middle of the program but couldn't reproduce the problem with it. It looks like problem maybe happens because of some track changes etc. in the beginning when the program starts..
comment:4 Changed 14 years ago by
Owner: | changed from markk to JYA |
---|---|
Status: | new → assigned |
Appears related to the other bug where audio format changes somewhere in the stream.
comment:5 Changed 14 years ago by
Owner: | JYA deleted |
---|---|
Status: | assigned → new |
I've been able to reproduce the problem by marking a bookmark when you see the man praying with a rosary. You then exit and come back.
Log will show that audio is being opened with: (Video) already open. 2010-09-13 14:54:18.201 AFD: Warning, audio codec 0x9133090 id(MP3) type (Audio) already open, leaving it alone. 2010-09-13 14:54:18.201 AFD: codec MP3 has 0 channels 2010-09-13 14:54:18.201 AFD: Audio Track #1 is A/V stream #1 and has 0 channels in the English language(6647399). 2010-09-13 14:54:18.201 AFD: Warning, audio codec 0x3a80070 id(MP3) type (Audio) already open, leaving it alone. 2010-09-13 14:54:18.201 AFD: codec MP3 has 0 channels 2010-09-13 14:54:18.201 AFD: Audio Track #2 is A/V stream #2 and has 0 channels in the Dutch; Flemish language(6583668). 2010-09-13 14:54:18.201 AFD: Trying to select audio track (w/lang) 2010-09-13 14:54:18.201 AFD: Selected track 1: English MP0 ?ch (A/V Stream #1) 2010-09-13 14:54:18.201 AFD: Initializing audio parms from audio track #1 2010-09-13 14:54:18.201 AFD: Audio format changed
from id(NONE) -1Hz -1ch -1bps to id( MP3) 0Hz 0ch 16bps
So AFVD tries to open the audio card with 0Hz , 0 channels which is obviously not valid.
Re-assigning to someone else, this is related to libavcodec usage in avfd. It is different to the issue of having an AC3 stream going 6->2->6->2 etc...
comment:6 Changed 14 years ago by
Owner: | set to danielk |
---|---|
Status: | new → assigned |
comment:7 Changed 14 years ago by
Just verified that the no-audio issue is still present with latest r26882
comment:8 Changed 13 years ago by
This issue seems to be working now, has been fixed somewhere between r26882 and current head. Ticket can be closed.
comment:9 Changed 13 years ago by
Resolution: | → Fixed |
---|---|
Status: | assigned → closed |
can't imagine why this would be fixed .. but I'm certainly not going to argue about it
This issue is avfd related. Not sure who's best to handle it, Markk or Janne