No AC3 Audio Playback with HD MPEG2-PS Files

macOS specific usage questions
reggie14
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No AC3 Audio Playback with HD MPEG2-PS Files

Postby reggie14 » 13 Mar 2009 16:42

I can't seem to get audio playback working with some high-definition mpeg2 files. The video plays back fine, but there is no audio. The files are TV recordings from a QAM digital TV tuner card (HVR-1600) and from firewire capture from a cable box. The files are program stream mpeg2s of resolution either 720p or 1080i, and they all have AC3 audio tracks, which I think is causing this problem. I can play these files back in Plex Media Center without difficulties, and I can play them back on my Windows box.

I have a MacBook Pro (Intel Core2 Duo 2.5Ghz) running OS 10.5.6. I first tried running VLC 0.9.8a, but that can't even pull up media information for the files. I've been running the nightlies for a while, and right now I have the latest nightly (March 11th) installed. Except for the media information not working in VLC 0.9.8a but working in the nightly, everything else is the same as far as I can tell.

When I open the log (Window->Messages), I see lots and lots of "PTS is out of range" warnings. The log window quickly fills up with these messages, and I don't know how to let the window store more messages or dump things to a log file (the log-related things in the preferences menu don't seem to work, as far as I can tell). But, I started playback of a file, and stopped it after a couple seconds, and this was the contents of the log window:

Code: Select all

main debug: TIMER module_need() : 448.261 ms - Total 448.261 ms / 1 intvls (Avg 448.261 ms) main debug: output 'fl32' 48000 Hz Stereo frame=1 samples/8 bytes main debug: mixer 'fl32' 48000 Hz Stereo frame=1 samples/8 bytes main debug: no need for any filter main debug: looking for audio mixer module: 3 candidates main debug: using audio mixer module "float32_mixer" main debug: TIMER module_need() : 0.676 ms - Total 0.676 ms / 1 intvls (Avg 0.676 ms) main debug: input 'a52 ' 48000 Hz 3F2R/LFE frame=1536 samples/1536 bytes main debug: looking for audio filter module: 1 candidate scaletempo warning: bad input or output format scaletempo warning: input and output formats are not similar main warning: no audio filter module matching "scaletempo" could be loaded main debug: TIMER module_need() : 0.496 ms - Total 0.496 ms / 1 intvls (Avg 0.496 ms) main debug: looking for audio filter module: 1 candidate scaletempo debug: format: 48000 rate, 6 nch, 4 bps, fl32 scaletempo debug: params: 30 stride, 0.200 overlap, 14 search scaletempo debug: 1.000 scale, 1440.000 stride_in, 1440 stride_out, 1152 standing, 288 overlap, 672 search, 2400 queue, fl32 mode main debug: using audio filter module "scaletempo" main debug: TIMER module_need() : 0.712 ms - Total 0.712 ms / 1 intvls (Avg 0.712 ms) main debug: filter(s) 'a52 '->'fl32' 48000 Hz->48000 Hz 3F2R/LFE->3F2R/LFE main debug: looking for audio filter module: 24 candidates main debug: using audio filter module "a52tofloat32" main debug: TIMER module_need() : 3.103 ms - Total 3.103 ms / 1 intvls (Avg 3.103 ms) main debug: found a filter for the whole conversion main debug: filter(s) 'fl32'->'fl32' 48000 Hz->48000 Hz 3F2R/LFE->Stereo main debug: looking for audio filter module: 24 candidates main debug: using audio filter module "simple_channel_mixer" main debug: TIMER module_need() : 5.512 ms - Total 5.512 ms / 1 intvls (Avg 5.512 ms) main debug: found a filter for the whole conversion main debug: filter(s) 'fl32'->'fl32' 52800 Hz->48000 Hz Stereo->Stereo main debug: looking for audio filter module: 24 candidates main debug: using audio filter module "bandlimited_resampler" main debug: TIMER module_need() : 0.159 ms - Total 0.159 ms / 1 intvls (Avg 0.159 ms) main debug: found a filter for the whole conversion main debug: End of audio preroll main debug: Decoder buffering done in 460 ms main warning: PTS is out of range (454014), dropping buffer main warning: PTS is out of range (422420), dropping buffer main warning: PTS is out of range (390430), dropping buffer main warning: PTS is out of range (358435), dropping buffer main warning: PTS is out of range (326440), dropping buffer main warning: PTS is out of range (294455), dropping buffer main warning: PTS is out of range (262469), dropping buffer main warning: PTS is out of range (230481), dropping buffer main warning: PTS is out of range (198493), dropping buffer main warning: PTS is out of range (166505), dropping buffer main warning: PTS is out of range (134511), dropping buffer main warning: PTS is out of range (141964), dropping buffer main warning: PTS is out of range (148521), dropping buffer main debug: looking for decoder module: 33 candidates main debug: using decoder module "libmpeg2" main debug: TIMER module_need() : 1.311 ms - Total 1.311 ms / 1 intvls (Avg 1.311 ms) main debug: thread (decoder) created at priority 0 (../../src/input/decoder.c:314) main debug: thread started main warning: PTS is out of range (196726), dropping buffer main warning: PTS is out of range (223833), dropping buffer main warning: PTS is out of range (191988), dropping buffer main warning: PTS is out of range (177669), dropping buffer main warning: PTS is out of range (189786), dropping buffer main warning: PTS is out of range (185265), dropping buffer main warning: PTS is out of range (153273), dropping buffer main warning: PTS is out of range (172807), dropping buffer main warning: PTS is out of range (185974), dropping buffer main warning: PTS is out of range (191376), dropping buffer main warning: PTS is out of range (201794), dropping buffer main warning: PTS is out of range (169835), dropping buffer main warning: PTS is out of range (179510), dropping buffer main warning: PTS is out of range (187453), dropping buffer main warning: PTS is out of range (198042), dropping buffer main warning: PTS is out of range (202409), dropping buffer main warning: PTS is out of range (170531), dropping buffer libmpeg2 debug: 1920x1080 (display 1920,1080), aspect 768000, sar 1:1, 29.971 fps main debug: no usable vout present, spawning one main debug: looking for text renderer module: 3 candidates main debug: using text renderer module "quartztext" main debug: TIMER module_need() : 0.891 ms - Total 0.891 ms / 1 intvls (Avg 0.891 ms) main debug: looking for video filter2 module: 17 candidates swscale debug: 32x32 chroma: YUVA -> 16x16 chroma: YUVA with scaling using Bicubic (good quality) main debug: using video filter2 module "swscale" main debug: TIMER module_need() : 2.279 ms - Total 2.279 ms / 1 intvls (Avg 2.279 ms) main debug: looking for video filter2 module: 17 candidates yuvp debug: YUVP to YUVA converter main debug: using video filter2 module "yuvp" main debug: TIMER module_need() : 5.100 ms - Total 5.100 ms / 1 intvls (Avg 5.100 ms) main debug: window size: 1920x1080 main debug: looking for video output module: 4 candidates opengl debug: Texture size: 1920x1088 opengl debug: requesting "default" opengl provider main debug: looking for opengl provider module: 2 candidates macosx debug: display is Quartz Extreme accelerated main warning: PTS is out of range (179398), dropping buffer main warning: PTS is out of range (192649), dropping buffer main warning: PTS is out of range (207138), dropping buffer main warning: PTS is out of range (175176), dropping buffer main warning: PTS is out of range (177052), dropping buffer main debug: using opengl provider module "macosx" main debug: TIMER module_need() : 168.343 ms - Total 168.343 ms / 1 intvls (Avg 168.343 ms) main debug: using video output module "opengl" main debug: TIMER module_need() : 169.139 ms - Total 169.139 ms / 1 intvls (Avg 169.139 ms) main debug: got 1 direct buffer(s) main debug: pic render sz 1920x1088, of (0,0), vsz 1920x1080, 4cc I420, ar 16:9, sar 1:1, msk r0x0 g0x0 b0x0 main debug: pic in sz 1920x1088, of (0,0), vsz 1920x1080, 4cc I420, ar 16:9, sar 1:1, msk r0x0 g0x0 b0x0 main debug: pic out sz 1920x1088, of (0,0), vsz 1920x1080, 4cc UYVY, ar 16:9, sar 1:1, msk r0x0 g0x0 b0x0 main debug: looking for video filter2 module: 17 candidates main debug: using video filter2 module "i420_yuy2_mmx" main debug: TIMER module_need() : 0.146 ms - Total 0.146 ms / 1 intvls (Avg 0.146 ms) main debug: indirect render, mapping render pictures 0-15 to system pictures 1-16 main warning: dts != current_pts (-1496643) main warning: PTS is out of range (185653), dropping buffer main warning: decoder synchro warning: pts != current_date (-33367) main warning: PTS is out of range (193620), dropping buffer main warning: PTS is out of range (199045), dropping buffer main warning: PTS is out of range (167194), dropping buffer main warning: PTS is out of range (176445), dropping buffer main debug: looking for video blending module: 1 candidate blend debug: chroma: YUVA -> UYVY main debug: using video blending module "blend" main debug: TIMER module_need() : 0.698 ms - Total 0.698 ms / 1 intvls (Avg 0.698 ms) main warning: PTS is out of range (186133), dropping buffer main warning: PTS is out of range (193546), dropping buffer main warning: PTS is out of range (205446), dropping buffer main warning: PTS is out of range (173476), dropping buffer main warning: PTS is out of range (185725), dropping buffer main warning: PTS is out of range (190755), dropping buffer main warning: PTS is out of range (199248), dropping buffer main warning: PTS is out of range (167262), dropping buffer main warning: PTS is out of range (177781), dropping buffer main warning: PTS is out of range (184913), dropping buffer main warning: PTS is out of range (191410), dropping buffer main warning: PTS is out of range (201255), dropping buffer main warning: PTS is out of range (169280), dropping buffer main warning: PTS is out of range (174436), dropping buffer main warning: PTS is out of range (185431), dropping buffer main warning: PTS is out of range (191047), dropping buffer main warning: PTS is out of range (194211), dropping buffer main warning: PTS is out of range (162527), dropping buffer main warning: PTS is out of range (180043), dropping buffer main warning: PTS is out of range (183448), dropping buffer main warning: PTS is out of range (195347), dropping buffer main warning: PTS is out of range (163361), dropping buffer main warning: PTS is out of range (175891), dropping buffer main warning: PTS is out of range (179792), dropping buffer main warning: PTS is out of range (193140), dropping buffer main warning: PTS is out of range (202824), dropping buffer main warning: PTS is out of range (170892), dropping buffer main warning: PTS is out of range (181394), dropping buffer main warning: PTS is out of range (188109), dropping buffer main warning: PTS is out of range (197948), dropping buffer main warning: PTS is out of range (166144), dropping buffer main warning: PTS is out of range (175142), dropping buffer main warning: PTS is out of range (183111), dropping buffer main warning: PTS is out of range (192399), dropping buffer main warning: PTS is out of range (203116), dropping buffer main warning: PTS is out of range (171135), dropping buffer main warning: PTS is out of range (176795), dropping buffer main warning: PTS is out of range (187170), dropping buffer main warning: PTS is out of range (196903), dropping buffer main warning: PTS is out of range (211269), dropping buffer main warning: PTS is out of range (179425), dropping buffer main warning: PTS is out of range (182448), dropping buffer main warning: PTS is out of range (190548), dropping buffer main warning: PTS is out of range (198643), dropping buffer main warning: PTS is out of range (166686), dropping buffer main warning: PTS is out of range (176261), dropping buffer main warning: PTS is out of range (184360), dropping buffer main warning: PTS is out of range (193028), dropping buffer main warning: PTS is out of range (199547), dropping buffer main warning: PTS is out of range (167594), dropping buffer main warning: PTS is out of range (182604), dropping buffer main warning: PTS is out of range (191677), dropping buffer main warning: PTS is out of range (198582), dropping buffer main warning: PTS is out of range (207412), dropping buffer main warning: PTS is out of range (175426), dropping buffer main warning: PTS is out of range (180622), dropping buffer main warning: PTS is out of range (190440), dropping buffer main warning: PTS is out of range (198605), dropping buffer main warning: PTS is out of range (202410), dropping buffer main warning: PTS is out of range (170436), dropping buffer main warning: PTS is out of range (182035), dropping buffer main debug: Adding CC track 1 for es[1] main warning: PTS is out of range (190779), dropping buffer main warning: PTS is out of range (194713), dropping buffer main warning: PTS is out of range (162741), dropping buffer main warning: PTS is out of range (173877), dropping buffer main warning: PTS is out of range (318101), dropping buffer main warning: PTS is out of range (304642), dropping buffer main warning: PTS is out of range (273117), dropping buffer main warning: PTS is out of range (241123), dropping buffer main warning: PTS is out of range (217360), dropping buffer main warning: PTS is out of range (185385), dropping buffer main debug: Adding CC track 2 for es[1] main warning: PTS is out of range (195486), dropping buffer main warning: PTS is out of range (163543), dropping buffer main warning: PTS is out of range (164432), dropping buffer main warning: PTS is out of range (290765), dropping buffer
If someone can help with the logging issue I can post a more complete version. I don't think this one quite starts from the beginning. I know usually you're not suppose to use the nightlies when looking for technical support, but since things seem to work a little better in the nightly that seems like a better place to start. I can drop back to 0.9.8a if that would be better.

Jean-Baptiste Kempf
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Re: No AC3 Audio Playback with HD MPEG2-PS Files

Postby Jean-Baptiste Kempf » 13 Mar 2009 16:48

Can you share the files?
Jean-Baptiste Kempf
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reggie14
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Re: No AC3 Audio Playback with HD MPEG2-PS Files

Postby reggie14 » 14 Mar 2009 01:05

I uploaded a relatively short clip (~10 seconds) to the VLC FTP samples server. The file is named TheMummyac3clip.mpg. I can provide additional, longer samples if needed.

Jean-Baptiste Kempf
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Re: No AC3 Audio Playback with HD MPEG2-PS Files

Postby Jean-Baptiste Kempf » 14 Mar 2009 11:59

Jean-Baptiste Kempf
http://www.jbkempf.com/ - http://www.jbkempf.com/blog/category/Videolan
VLC media player developer, VideoLAN President and Sites administrator
If you want an answer to your question, just be specific and precise. Don't use Private Messages.

reggie14
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Re: No AC3 Audio Playback with HD MPEG2-PS Files

Postby reggie14 » 16 Mar 2009 21:42

Do you know what the "PTS error is out of range" error means? I sort of blindly messed around with settings for a while trying to find some sort of work-around. I didn't have any luck.


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