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[MP4] Does the popcorn hour (A400, or any model for that matter) play DTS in m4v files?
12-24-2012, 01:28 PM
Post: #1
Does the popcorn hour (A400, or any model for that matter) play DTS in m4v files?
Hello all,

I am a very recent convert to the PCH A400 from Apple TV.

I have a large video library collected over the years all converted to m4v's (given that was all ATV basically played).

Playing these same m4v files on the PCH is fine, except when it comes to those movies with a DTS soundtrack ( note I'm talking here about plain old DTS, not DTSHD / DTSMA for which I know there is a current fix in the works with sigma ). When I try to select the DTS soundtrack the movie exits straight away (as soon as I push the audio button on the remote).

I have generally encoded DTS movies into m4v's with 3 audio tracks - AAC, AC3 & DTS - encodes accomplished through Handbrake with passthru on the AC3 & DTS. The AAC and AC3 play fine.

The exact same file encoded with a MKV wrapper plays the DTS soundtrack without a problem.

The question is then : is a DTS soundtrack not able to be played in an M4V file??

Does anybody know if this is the case?

Any knowledge, help or guidance you may have on this issue would be greatly appreciated.

Thanks.

Ps. Just to note, the ATV has never been able to play DTS (only pass thru Dolby Digital AC3), however I always kept the DTS track within the M4V file, just to have and ultimately in the forlorn hope that Apple might one day support DTS.
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12-24-2012, 07:34 PM
Post: #2
RE: Does the popcorn hour (A400, or any model for that matter) play DTS in m4v files?
try renaming from m4v to to mp4 and test
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12-25-2012, 09:14 AM
Post: #3
RE: Does the popcorn hour (A400, or any model for that matter) play DTS in m4v files?
(12-24-2012 07:34 PM)halfelite Wrote:  try renaming from m4v to to mp4 and test

Hi halfelite, thanks for your reply,

Unfortunately I have already tried renaming to an .mp4, no luck, still no joy playing the DTS track, as soon as I try to switch to DTS it just exits playback.

I have appended a copy of the media info for an Avatar conversion which I renamed to .mp4 (previously .m4v) which exhibits the exact behaviour I detailed. (you will note two DTS tracks here, again its just the normal DTS I am referring to, I know DTS MA is currently being worked on)

And just to round things off I have also attached a copy of the media info for 'The Final Destination' which has just been converted from scratch to a .mp4 (again with the the audio tracks of AAC, AC3 & DTS; AC3 and DTS are passthru on the Handbrake encodes)

Do you see anything out of the ordinary, I am missing something simple??

Like I said everything else plays fine, just not the DTS.

Thanks again for your help.

Cheers


**************************************************
Avatar:
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 2h 41mn
Bit rate mode : Variable
Bit rate : 3 959 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Original display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 23.976 fps
Minimum frame rate : 22.590 fps
Maximum frame rate : 25.539 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.179
Stream size : 4.47 GiB (38%)
Writing library : x264 core 120
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=4 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=20.0 / qcomp=0.60 / qpmin=3 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 2012-12-23 23:03:55
Tagged date : UTC 2012-12-24 01:32:31
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio #1
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 2h 41mn
Bit rate mode : Variable
Bit rate : 160 Kbps
Maximum bit rate : 301 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 185 MiB (2%)
Language : English
Encoded date : UTC 2012-12-23 23:03:55
Tagged date : UTC 2012-12-24 01:32:30

Audio #2
ID : 3
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : ac-3
Duration : 2h 41mn
Bit rate mode : Constant
Bit rate : 640 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 740 MiB (6%)
Language : English
Encoded date : UTC 2012-12-23 23:03:55
Tagged date : UTC 2012-12-24 01:32:30

Audio #3
ID : 4
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A9
Duration : 2h 41mn
Bit rate mode : Constant
Bit rate : 1 509 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.70 GiB (14%)
Language : English
Encoded date : UTC 2012-12-23 23:03:55
Tagged date : UTC 2012-12-24 01:32:30

Audio #4
ID : 5
Format : DTS
Format/Info : Digital Theater Systems
Format profile : MA / Core
Codec ID : A9
Duration : 2h 41mn
Bit rate mode : Variable
Bit rate : 1 561 Kbps / 1 510 Kbps
Nominal bit rate : 4 146 Kbps
Maximum bit rate : 5 488 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Compression mode : Lossless / Lossy
Stream size : 4.68 GiB (40%)
Language : English
Encoded date : UTC 2012-12-23 23:03:55
Tagged date : UTC 2012-12-24 01:32:30

Text
ID : 6
Format : Apple text
Codec ID : text
Duration : 2h 41mn
Bit rate mode : Variable
Bit rate : 1 bps
Stream size : 831 Bytes (0%)
Encoded date : UTC 2012-12-23 23:03:55
Tagged date : UTC 2012-12-24 01:32:31
**************************************************
N:\HD MOVIES (720P)\The Final Destination (2009)\The Final Destination (2009).mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 2.77 GiB
Duration : 1h 21mn
Overall bit rate mode : Variable
Overall bit rate : 4 851 Kbps
Encoded date : UTC 2012-12-25 02:56:20
Tagged date : UTC 2012-12-25 03:46:27
Writing application : HandBrake 0.9.8 2012071700

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1h 21mn
Bit rate mode : Variable
Bit rate : 2 538 Kbps
Width : 1 280 pixels
Height : 532 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Variable
Frame rate : 23.976 fps
Minimum frame rate : 23.810 fps
Maximum frame rate : 24.390 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.155
Stream size : 1.45 GiB (52%)
Writing library : x264 core 120
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=4 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=20.0 / qcomp=0.60 / qpmin=3 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 2012-12-25 02:56:20
Tagged date : UTC 2012-12-25 03:46:27
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio #1
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 1h 21mn
Bit rate mode : Variable
Bit rate : 160 Kbps
Maximum bit rate : 206 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 93.6 MiB (3%)
Encoded date : UTC 2012-12-25 02:56:20
Tagged date : UTC 2012-12-25 03:46:26

Audio #2
ID : 3
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : ac-3
Duration : 1h 21mn
Bit rate mode : Constant
Bit rate : 640 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 375 MiB (13%)
Encoded date : UTC 2012-12-25 02:56:20
Tagged date : UTC 2012-12-25 03:46:26

Audio #3
ID : 4
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A9
Duration : 1h 21mn
Bit rate mode : Constant
Bit rate : 1 509 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 883 MiB (31%)
Encoded date : UTC 2012-12-25 02:56:20
Tagged date : UTC 2012-12-25 03:46:26
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12-25-2012, 09:34 PM
Post: #4
RE: Does the popcorn hour (A400, or any model for that matter) play DTS in m4v files?
This is a tricky one, Mp4 specs did not allow dts up until sometime this year and it changed, Nothing supported it before hand and you are most likely the first person to try it, I would mark this thread as a bug/feature request, as if its part of mp4 specs it should work but since it was added this year the internal splitters might not allow for it depending on when they were made.
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12-26-2012, 01:51 PM
Post: #5
RE: Does the popcorn hour (A400, or any model for that matter) play DTS in m4v files?
(12-25-2012 09:34 PM)halfelite Wrote:  This is a tricky one, Mp4 specs did not allow dts up until sometime this year and it changed, Nothing supported it before hand and you are most likely the first person to try it, I would mark this thread as a bug/feature request, as if its part of mp4 specs it should work but since it was added this year the internal splitters might not allow for it depending on when they were made.

Ok. Thanks again halfelite - is this just a matter of reposting this thread content as a new thread under bugs/feature request?

I guess I have a lot of converting to MKV if I want to enjoy DTS.

Appreciate your response.

NB:
I wonder if this bug is prevalent in all players on the market (for an mp4/m4v containing a DTS track?) It seems pretty pointless for Handbrake to have implemented passthru DTS (and DTS.HD) if no player can actually handle it (aside, I guess, from PC's/PC boxes?).

IF ANYONE ELSE OUT THERE HAS ANY EXPERIENCE WITH THIS PROBLEM / KINK (ON ANY PLATFORM) I'D LOVE TO HEAR ANY AND ALL OF YOUR THOUGHTS/INPUT/WORKAROUNDS.

I'm sure given the number of apple fanboys/girls out there, and maybe their entry into the popcorn product, would see this a significant requirement (if the A400 and NMJ prove to be a stimulant for this franchise - it certainly attracted me and I have been using ATV for 4-5 years now) AND particularly given, I would say, 90% of commercial Blurays have predominantly DTS/DTS.HD tracks these days................
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12-26-2012, 04:54 PM
Post: #6
RE: Does the popcorn hour (A400, or any model for that matter) play DTS in m4v files?
^^ actually when handbrake added it the only software that could play it was mplayer. xbmc did not even support it up until I think v12 or there was a branch of v11 as it needed the newest ffmpeg.

The difference is in the apple community everyone uses mp4 and such outside apple world everyone uses MKV
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