aTV not syncing...i know..again. But this is interesting.

[ron2812]

Hi everybody.

I'm writing this thread because I am converting the same video over and over again since 2 days. Searched in this forum for some information about that i understand, but didn't find anything

I'm converting a mkv File using Handbrake svn2354 (cos finally 2 audiotracks work on a Mac with that version).

Here's what i did:
1) I selected the Apple TV preset and increased the resolution to 1280x528 (720p)
2) Lowered "Constant quality" to make sure I'm below a 5M bitrate
3) Selected the 2 Audio tracks
4) startet and waited 3 hours (did this maybe 10 times now )

The source is a mkv with 720p and 24fps (and i kept the framerate from the original).

So this is how my mp4 video looks like after converting:
size: 3,92 GB
bitrate: 4408
resolution: 1280x528
video codec: H.265
framerate: like the original..24fps

Basically everything seems like it should be able to play on an Apple TV.
BUT: It's not syncinc it..."apple tv can't play that video"

From what i read, the aTV specs are basically:
> 24fps for 720p
> Bitrate has to be below 5Mb


Where am i going wrong? Any ideas anybody?


PS: I've tried to give you all the infos about the video and what i did in Handbrake. I'm a newbie with Handbrake and video converting, so I hope I didn't miss anything important.

[TedJ]

Well, you did miss the activity log we require. See the red box above.

[ron2812]

Here it is:

HandBrake Activity Log for /Users/ron/Desktop/.mp4: 2009-04-28 17:41:28 +0200
Handbrake Version: svn2354 i386 (2009042601)

[17:41:28] macgui: Rip: Pending queue count is 0
[17:41:28] macgui: Rip: No pending jobs, so sending this one to doAddToQueue
[17:41:28] macgui: Rip: Going right to performNewQueueScan
[17:41:28] macgui: scanning specifically for title: 1
[17:41:28] macgui: performNewQueueScan currentQueueEncodeIndex is: 0
[17:41:28] hb_scan: path=/Volumes/Daten/Movies to convert/indianajones.mkv, title_index=1
[17:41:28] scan: trying to open with libdvdread
[17:41:28] dvd: not a dvd - trying as a stream/file instead
Input #0, matroska, from '/Volumes/Daten/Movies to convert/indianajones.mkv':
Duration: 02:06:50.08, start: 0.000000, bitrate: N/A
Stream #0.0(eng): Video: h264, yuv420p, 1280x528, PAR 1:1 DAR 80:33, 24 tbr, 1k tbn, 47.95 tbc
Stream #0.1: Audio: ac3, 48000 Hz, 5.0, s16
Stream #0.2(ger): Audio: ac3, 48000 Hz, 5.1, s16
[17:41:28] scan: decoding previews for title 1
[17:41:28] scan: audio 0x2: AC-3, rate=48000Hz, bitrate=384000 Deutsch (AC3) (5.1 ch)
[17:41:28] scan: audio 0x1: AC-3, rate=48000Hz, bitrate=448000 Unknown (AC3) (5.1 ch)
[17:41:28] scan: 10 previews, 1280x528, 24.000 fps, autocrop = 0/0/0/0, aspect 2.42:1, PAR 1:1
[17:41:28] scan: title (0) job->width:1280, job->height:528
[17:41:28] libhb: scan thread found 1 valid title(s)
[17:41:29] macgui: ScanDone state received from fQueueEncodeLibhb
[17:41:29] macgui: processNewQueueEncode title list is: 1
[17:41:29] macgui: Preset: Custom
[17:41:29] macgui: processNewQueueEncode number of passes expected is: 1
[17:41:29] macgui: prepareJob audiotrack 2 is: 1
[17:41:29] macgui: prepareJob exiting
[17:41:29] 1 job(s) to process
[17:41:29] starting job
[17:41:29] job configuration:
[17:41:29] * source
[17:41:29] + /Volumes/Daten/Movies to convert/indianajones.mkv
[17:41:29] + title 1, chapter(s) 1 to 1
[17:41:29] + container: matroska
[17:41:29] * destination
[17:41:29] + /Users/ron/Desktop/indianajones.mp4
[17:41:29] + container: MPEG-4 (.mp4 and .m4v)
[17:41:29] + 64-bit formatting
[17:41:29] * video track
[17:41:29] + decoder: h264
[17:41:29] + frame rate: same as source (around 24.000 fps)
[17:41:29] + dimensions: 1280 * 528 -> 1280 * 528, crop 0/0/0/0
[17:41:29] + encoder: x264
[17:41:29] + options: level=30:cabac=0:ref=3:mixed-refs=1:bframes=6:weightb=1:direct=auto:no-fast-pskip=1:me=umh:subq=7:analyse=all
[17:41:29] + quality: 23.00 (RF)
[17:41:29] * audio track 0
[17:41:29] + decoder: Unknown (AC3) (5.1 ch) (track 1, id 1)
[17:41:29] + bitrate: 448 kbps, samplerate: 48000 Hz
[17:41:29] + mixdown: Dolby Pro Logic II
[17:41:29] + dynamic range compression: 1.000000
[17:41:29] + encoder: faac
[17:41:29] + bitrate: 128 kbps, samplerate: 48000 Hz
[17:41:29] * audio track 1
[17:41:29] + decoder: Deutsch (AC3) (5.1 ch) (track 1, id 2)
[17:41:29] + bitrate: 384 kbps, samplerate: 48000 Hz
[17:41:29] + mixdown: Dolby Pro Logic II
[17:41:29] + dynamic range compression: 1.000000
[17:41:29] + encoder: faac
[17:41:29] + bitrate: 128 kbps, samplerate: 48000 Hz
[17:41:29] encx264: keyint-min: 24, keyint-max: 240
[17:41:29] encx264: Encoding at constant RF 23.000000
x264 [warning]: frame MB size (80x33) > level limit (1620)
x264 [warning]: MB rate (63360) > level limit (40500)
[17:41:29] dvd: not a dvd - trying as a stream/file instead
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64
x264 [info]: profile Main, level 3.0
No accelerated IMDCT transform found
[17:41:29] reader: first SCR 0
No accelerated IMDCT transform found
[17:41:29] sync: expecting 182665 video frames
[22:02:57] reader: done. 1 scr changes
[22:02:57] sync: got 175602 frames, 182665 expected
[22:02:57] work: average encoding speed for job is 11.192807 fps
[22:02:58] mux: track 0, 299994 frames, 3950490232 bytes, 4152.90 kbps, fifo 64
[22:02:58] mux: track 1, 356686 frames, 121497307 bytes, 127.72 kbps, fifo 16384
[22:02:58] mux: track 2, 356723 frames, 121732820 bytes, 127.97 kbps, fifo 16384
[22:02:58] h264-decoder done: 175603 frames, 0 decoder errors, 0 drops
[22:02:58] render: lost time: 0 (0 frames)
[22:02:58] render: gained time: 0 (0 frames) (0 not accounted for)
x264 [info]: slice I:2455 Avg QP:18.18 size: 73721 PSNR Mean Y:44.96 U:55.08 V:55.21 Avg:46.46 Global:45.44
x264 [info]: slice P:222103 Avg QP:20.78 size: 15086 PSNR Mean Y:41.80 U:51.35 V:51.33 Avg:43.30 Global:42.39
x264 [info]: slice B:75436 Avg QP:23.21 size: 5554 PSNR Mean Y:41.52 U:52.06 V:51.92 Avg:43.04 Global:42.32
x264 [info]: consecutive B-frames: 61.3% 12.2% 10.6% 10.0% 5.7% 0.1% 0.0%
x264 [info]: mb I I16..4: 18.1% 0.0% 81.9%
x264 [info]: mb P I16..4: 1.3% 0.0% 3.1% P16..4: 44.1% 14.6% 5.4% 0.2% 0.2% skip:31.1%
x264 [info]: mb B I16..4: 0.1% 0.0% 0.3% B16..8: 43.9% 1.1% 1.2% direct: 4.0% skip:49.5% L0:36.0% L1:58.1% BI: 5.9%
x264 [info]: direct mvs spatial:100.0% temporal:0.0%
x264 [info]: coded y,uvDC,uvAC intra:81.1% 63.8% 16.6% inter:19.8% 14.1% 0.2%
x264 [info]: ref P L0 78.8% 10.4% 10.8%
x264 [info]: ref B L0 73.9% 26.1%
x264 [info]: SSIM Mean Y:0.9703594
x264 [info]: PSNR Mean Y:41.755 U:51.559 V:51.511 Avg:43.259 Global:42.393 kb/s:2528.36
[22:03:00] libhb: work result = 0

[van]

This line says that the frame rate in the output file is around 40fps

Code: Select all

[22:02:58] mux: track 0, 299994 frames, 3950490232 bytes, 4152.90 kbps, fifo 64

but this lines says the input rate was under 24fps:

Code: Select all

[22:02:58] h264-decoder done: 175603 frames, 0 decoder errors, 0 drops

If the first number is right the file won't sync with an ATV.

Something like this can happen because a lot of mkv's (stupidly) use a really coarse clock (1ms) that makes the interframe times inaccurate which then causes the x264 encoder's b-frame delay to be too small to allow frame reordering so it has to dup frames.

You might try applying this patch and setting the output framerate to 24 fps.

[ron2812]

Wow! Thanks alot!
I'm trying to set a fixed framerate.

Can you tell me how to apply this patch? I'm really new to this, so i'm thankfull for any advice!

[van]

Click the download button on the patch page and download the patch to your desktop (should result in a file called 562.diff unless you rename it).

Do a fresh HandBrake source checkout, cd to the top level of that checkout and apply the patch:

Code: Select all

svn co svn://svn.handbrake.fr/HandBrake/trunk hb.patched
cd hb.patched
patch -p0 < ~/Desktop/562.diff

Then build Handbrake following the normal build instructions.