iPod Touch / iPhone preset

Discuss encoding for devices and presets.
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movingtarget
Posts: 18
Joined: Mon Apr 07, 2008 1:59 pm

iPod Touch / iPhone preset

Post by movingtarget » Fri Dec 04, 2009 4:11 pm

Having just updated to 0.9.4 and transcoded a DVD, I find that the built-in preset for iPod Touch / iPhone gives an output file of about 9MB per minute of playing time, so it takes up more room on my device than before. Under previous versions of Handbrake the iPod Touch/iPhone (notwithstanding the new preset using quality settings rather than fixed bit rate), it was typically half that size or less and I thought that the quality was already as good as it needed to be for viewing on those devices. In that case, what was the thinking behind the new preset that doubles the output file size? I know I could play around with the slider myself, but I like to understand the preset because honestly it came from wiser folk than me.

Or am I hallucinating?

jbrjake
Veteran User
Posts: 4805
Joined: Wed Dec 13, 2006 1:38 am

Re: iPod Touch / iPhone preset

Post by jbrjake » Fri Dec 04, 2009 4:30 pm

movingtarget wrote:the new preset that doubles the output file size
....what part of quality based encoding don't you understand?

movingtarget
Posts: 18
Joined: Mon Apr 07, 2008 1:59 pm

Re: iPod Touch / iPhone preset

Post by movingtarget » Fri Dec 04, 2009 4:32 pm

You didn't understand my question. A pity you guys have to be so rude to everyone.

jbrjake
Veteran User
Posts: 4805
Joined: Wed Dec 13, 2006 1:38 am

Re: iPod Touch / iPhone preset

Post by jbrjake » Fri Dec 04, 2009 4:41 pm

I do understand the question. However, it is nonsensical. You're asking why i made the preset create output 2x as large as the old preset when I didn't do that. I made it quality based. As you read in the documentation, that means output size is unpredictable and based on the source. It is beyond meaningless for you to say the preset creates output twice the size as the old when the old one always produced output at the same size regardless of the source and the new one varies size on every single encode. Again, what part of quality based encoding don't you understand? I don't really care whether or not you think that question is rude, because quite frankly until you tell me what you don't understand about quality based encoding, there is no question here to answer.

movingtarget
Posts: 18
Joined: Mon Apr 07, 2008 1:59 pm

Re: iPod Touch / iPhone preset

Post by movingtarget » Fri Dec 04, 2009 5:18 pm

You know perfectly well you meant to be rude.

Now I see why you're so sore - you were the author of the preset. Don't worry, your preset is just fine.
We all know it's hard to predict the size of one constant quality transcode, but when you try the settings a few times you can get the idea of whether the file sizes tend to be larger or smaller than another given setting (noise, complexity etc.). It's not random, it's determined by the source and the settings. For this preset, for a given source DVD, the output file is generally bigger than before. The quality settings play a large part in that. You chose them. I'm sure you had your thought process but if you want to keep to yourself then no problem.

kvaruni
Posts: 56
Joined: Tue Mar 24, 2009 1:12 pm

Re: iPod Touch / iPhone preset

Post by kvaruni » Fri Dec 04, 2009 5:40 pm

The easiest way to decrease the file size is to lower the constant quality. You do this by raising the RF value from 20 to for example 21. You can also add ":mbtree=1" without the quotes at the end of the option string which you will find on the advanced tab. It then reads:

Code: Select all

cabac=0:ref=2:me=umh:bframes=0:subq=6:8x8dct=0:trellis=0:weightb=0:mbtree=1
These settings are a bit much to explain, but if you want an overview, go visit http://mewiki.project357.com/wiki/X264_Settings . On one hand you lower the quality by raising the RF and on the other hand you kick in macroblock tree ratecontrol which will offer better compression. The reason why that isn't in there by default is because it might have strange effects when you don't use b-frames. Now, your iPod probably can't handle b-frames, so don't try to turn those on. You simply force mbtree to help you out even if it shouldn't, but the results should be just fine.

Given these two changes, you might already get a file that is 30 to 50% smaller in size.

rhester
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Posts: 2888
Joined: Tue Apr 18, 2006 10:24 pm

Re: iPod Touch / iPhone preset

Post by rhester » Fri Dec 04, 2009 5:47 pm

Are you sure mbtree must be forced? It works for me by default (verified with AVInaptic).

Rodney

kvaruni
Posts: 56
Joined: Tue Mar 24, 2009 1:12 pm

Re: iPod Touch / iPhone preset

Post by kvaruni » Fri Dec 04, 2009 5:50 pm

Hmm, might be. My information on mbtree is quite old. I know that it is enabled whenever using b-frames, but I have not tested it in the last few weeks whether or not it is on without b-frames. Might be my mistake! Nevertheless, having it in the settings strings does no harm, so in the case that it is disabled it will nog surely be enabled ;). Thanks for the information though, will surely check this out!

baggss
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Re: iPod Touch / iPhone preset

Post by baggss » Fri Dec 04, 2009 6:29 pm

movingtarget wrote:You know perfectly well you meant to be rude.

Now I see why you're so sore - you were the author of the preset. Don't worry, your preset is just fine.
We all know it's hard to predict the size of one constant quality transcode, but when you try the settings a few times you can get the idea of whether the file sizes tend to be larger or smaller than another given setting (noise, complexity etc.). It's not random, it's determined by the source and the settings. For this preset, for a given source DVD, the output file is generally bigger than before. The quality settings play a large part in that. You chose them. I'm sure you had your thought process but if you want to keep to yourself then no problem.
You have three real choices here:

1) Create a Custom preset that give you what you want: Better balance between size and Quality (probably your best bet).

2) Live with the bigger file sizes and move on.

3) Find an App that does a better job than HB for the price (pretty much impossible)

Nobody has to explain anything to anybody, especially when they doing all of this in their own time, of their own free will and for no monetary gain. If you don't like the attitude, don't like the answers or don't like whatever, feel free to go elsewhere, I wish you luck.

User avatar
Rodeo
HandBrake Team
Posts: 12256
Joined: Tue Mar 03, 2009 8:55 pm

Re: iPod Touch / iPhone preset

Post by Rodeo » Fri Dec 04, 2009 7:10 pm

kvaruni wrote:Hmm, might be. My information on mbtree is quite old. I know that it is enabled whenever using b-frames, but I have not tested it in the last few weeks whether or not it is on without b-frames. Might be my mistake! Nevertheless, having it in the settings strings does no harm, so in the case that it is disabled it will nog surely be enabled ;). Thanks for the information though, will surely check this out!
x264 always defaults to mbtree on. Previous snapshots of HandBrake would override that and disabled mbtree when bframes were off, due to the fact that mbtree without bframes would tend to lower the quality of fades. Since x264 added fade detection (same commit as weighted p-frame prediction), HandBrake follows the x264 defaults and mbtree is on by default regardless of whether bframes are enabled or not.

jbrjake
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Joined: Wed Dec 13, 2006 1:38 am

Re: iPod Touch / iPhone preset

Post by jbrjake » Fri Dec 04, 2009 7:25 pm

movingtarget wrote:You know perfectly well you meant to be rude.
Reread what I said. I didn't say I wasn't trying to be rude, I said I don't care if you think my question is rude, because the fact is, you need to tell me what you don't understand about constant quality rate encoding so I can try to explain this to you. I am trying to give you technical support in my spare time during a busy day. Whether or not you can appreciate a terse answer is not something that weighs heavily on me.
Now I see why you're so sore - you were the author of the preset. Don't worry, your preset is just fine.
More because you are making sweeping generalizations without backing them up with hard evidence, while making comments that indicate a lack of knowledge about rate control.
We all know it's hard to predict the size of one constant quality transcode, but when you try the settings a few times you can get the idea of whether the file sizes tend to be larger or smaller than another given setting (noise, complexity etc.). It's not random, it's determined by the source and the settings. For this preset, for a given source DVD, the output file is generally bigger than before
You are stepping back your claims here.

"Under previous versions of Handbrake the iPod Touch/iPhone (notwithstanding the new preset using quality settings rather than fixed bit rate), it was typically half that size or less"

"the new preset that doubles the output file size"

So which is it? Is the output file merely generally bigger than before, or is it, as you claimed earlier, "typically" twice as large as before?

Unlike you, I've decided to do some actual testing and provide evidence of my claims.

Because your initial post claims you are getting larger files than you did with 0.9.3, I decided to use 0.93's iPhone preset for testing. This leads to a bit of a puzzle for me. You claim you've been using the preset for multiple versions and that it used a fixed bit rate ("Under previous versions of Handbrake the iPod Touch/iPhone (notwithstanding the new preset using quality settings rather than fixed bit rate), it was typically half that size or less") only the iPhone preset changed drastically in 0.9.3 and used CRF even then. In any case, here are my results comparing 0.9.3's preset vs. 0.9.4's:

Code: Select all

jonathon-rubins-macbook-pro:build jonr$ ./HandBrakeCLI -i ~/Movies/Samples/lost.vob -o ~/Desktop/oldiphone.m4v -e x264 -q 0.589 -a 1 -E faac -B 128 -R 48 -6 dpl2 -f mp4 -X 480 -m -x level=30:cabac=0:ref=2:mixed-refs:analyse=all:me=umh:no-fast-pskip=1:bframes=0:8x8dct=0 ; ./HandBrakeCLI -i ~/Movies/Samples/lost.vob -o ~/Desktop/newiphone.m4v -e x264  -q 20.0 -a 1 -E faac -B 128 -6 dpl2 -R 48 -D 0.0 -f mp4 -X 480 -m -x cabac=0:ref=2:me=umh:bframes=0:subme=6:8x8dct=0:trellis=0
[13:58:18] hb_init: checking cpu count
[13:58:18] hb_init: starting libhb thread
HandBrake svn2991 (2009120201) - Darwin x86_64 - http://handbrake.fr
2 CPUs detected
Opening /Users/jonr/Movies/Samples/lost.vob...
[13:58:18] hb_scan: path=/Users/jonr/Movies/Samples/lost.vob, title_index=1
[13:58:18] scan: trying to open with libdvdread
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
[13:58:18] dvd: not a dvd - trying as a stream/file instead
[13:58:18] file is MPEG DVD Program Stream
[13:58:27] add_audio_to_title: added AC3 audio stream 0x80bd
[13:58:27] add_audio_to_title: added AC3 audio stream 0x81bd
[13:58:28] scan: decoding previews for title 1
Scanning title 1...
Scanning title 1...
[13:58:28] scan: audio 0x81bd: AC-3, rate=48000Hz, bitrate=192000 Unknown (AC3) (2.0 ch)
[13:58:28] scan: audio 0x80bd: AC-3, rate=48000Hz, bitrate=448000 Unknown (AC3) (5.1 ch)
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
[13:58:30] scan: 10 previews, 720x480, 23.976 fps, autocrop = 0/2/0/0, aspect 16:9, PAR 32:27
[13:58:30] scan: title (0) job->width:720, job->height:400
[13:58:30] libhb: scan thread found 1 valid title(s)
+ title 1:
  + stream: /Users/jonr/Movies/Samples/lost.vob
  + angle(s) 0
  + duration: 00:07:29
  + size: 720x480, pixel aspect: 32/27, display aspect: 1.78, 23.976 fps
  + autocrop: 0/2/0/0
  + chapters:
    + 1: cells 0->0, 0 blocks, duration 00:07:29
  + audio tracks:
    + 1, Unknown (AC3) (5.1 ch) (iso639-2: und), 48000Hz, 448000bps
    + 2, Unknown (AC3) (2.0 ch) (iso639-2: und), 48000Hz, 192000bps
  + subtitle tracks:
    + 1, Closed Captions (iso639-2: und) (Text)
[13:58:30] 1 job(s) to process
[13:58:30] starting job
[13:58:30] Width out of bounds, scaling down to 480
[13:58:30] New dimensions 480 * 272
[13:58:30] job configuration:
[13:58:30]  * source
[13:58:30]    + /Users/jonr/Movies/Samples/lost.vob
[13:58:30]    + title 1, chapter(s) 1 to 1
[13:58:30]  * destination
[13:58:30]    + /Users/jonr/Desktop/oldiphone.m4v
[13:58:30]    + container: MPEG-4 (.mp4 and .m4v)
[13:58:30]      + chapter markers
[13:58:30]  * video track
[13:58:30]    + decoder: mpeg2
[13:58:30]      + bitrate 9800 kbps
[13:58:30]    + frame rate: same as source (around 23.976 fps)
[13:58:30]    + dimensions: 720 * 480 -> 480 * 272, crop 0/2/0/0
[13:58:30]    + filter
[13:58:30]      + Rotates video 180 degrees (for mduell) (default settings)
[13:58:30]    + encoder: x264
[13:58:30]      + options: level=30:cabac=0:ref=2:mixed-refs:analyse=all:me=umh:no-fast-pskip=1:bframes=0:8x8dct=0
[13:58:30]      + quality: 0.59
[13:58:30]  * audio track 0
[13:58:30]    + decoder: Unknown (AC3) (5.1 ch) (track 1, id 80bd)
[13:58:30]      + bitrate: 448 kbps, samplerate: 48000 Hz
[13:58:30]    + mixdown: Dolby Pro Logic II
[13:58:30]    + encoder: faac
[13:58:30]      + bitrate: 128 kbps, samplerate: 48000 Hz
[13:58:30] reader: first SCR 146 id 224 DTS 22254
[13:58:30] mpeg2: "Chapter 1" (1) at frame 0 time 3003
[13:58:30] Rotate thread started for segment 0
[13:58:30] Rotate thread started for segment 1
[13:58:30] encx264: keyint-min: 24, keyint-max: 240
[13:58:30] encx264: Encoding at constant RF 20.961000
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
x264 [info]: profile Baseline, level 3.0
No accelerated IMDCT transform found
Encoding: task 1 of 1, 0.00 %[13:58:31] sync: expecting 10789 video frames
[13:58:31] sync: first pts is 3003
[13:58:31] sync: adding 433 ms of silence to audio 0  start 39039, next 0
Encoding: task 1 of 1, 100.00 % (44.76 fps, avg 46.73 fps, ETA 00h00m00s)[14:02:23] reader: done. 0 scr changes
Encoding: task 1 of 1, 100.00 %[14:02:23] sync: got 10838 frames, 10789 expected
[14:02:23] work: average encoding speed for job is 46.713455 fps
Encoding: task 1 of 1, 100.00 %[14:02:25] mux: track 0, 10838 frames, 39000549 bytes, 690.22 kbps, fifo 64
[14:02:25] mux: track 1, 21185 frames, 7229228 bytes, 127.94 kbps, fifo 512
[14:02:25] mpeg2 done: 10839 frames
[14:02:25] render: lost time: 0 (0 frames)
[14:02:25] render: gained time: 0 (0 frames) (0 not accounted for)
x264 [info]: frame I:212   Avg QP:19.76  size: 10599  PSNR Mean Y:45.85 U:49.52 V:50.20 Avg:46.76 Global:45.92
x264 [info]: frame P:10626 Avg QP:23.42  size:  3459  PSNR Mean Y:42.31 U:48.09 V:48.57 Avg:43.41 Global:42.47
x264 [info]: mb I  I16..4: 30.3%  0.0% 69.7%
x264 [info]: mb P  I16..4:  3.1%  0.0%  6.7%  P16..4: 49.5% 20.5%  7.9%  0.7%  0.4%    skip:11.2%
x264 [info]: coded y,uvDC,uvAC intra: 59.9% 69.5% 28.9% inter: 25.0% 23.5% 1.2%
x264 [info]: i16 v,h,dc,p: 33% 21%  6% 40%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 18% 17%  7%  9%  9%  8%  7%  5%
x264 [info]: ref P L0: 81.4% 18.6%
x264 [info]: SSIM Mean Y:0.9748109
x264 [info]: PSNR Mean Y:42.381 U:48.117 V:48.606 Avg:43.479 Global:42.519 kb/s:690.34
[14:02:25] libhb: work result = 0

Rip done!
HandBrake has exited.
[14:02:25] hb_init: checking cpu count
[14:02:25] hb_init: starting libhb thread
HandBrake svn2991 (2009120201) - Darwin x86_64 - http://handbrake.fr
2 CPUs detected
Opening /Users/jonr/Movies/Samples/lost.vob...
[14:02:25] hb_scan: path=/Users/jonr/Movies/Samples/lost.vob, title_index=1
[14:02:25] scan: trying to open with libdvdread
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
[14:02:25] dvd: not a dvd - trying as a stream/file instead
[14:02:25] file is MPEG DVD Program Stream
[14:02:35] add_audio_to_title: added AC3 audio stream 0x80bd
[14:02:35] add_audio_to_title: added AC3 audio stream 0x81bd
[14:02:35] scan: decoding previews for title 1
[14:02:35] scan: audio 0x81bd: AC-3, rate=48000Hz, bitrate=192000 Unknown (AC3) (2.0 ch)
[14:02:35] scan: audio 0x80bd: AC-3, rate=48000Hz, bitrate=448000 Unknown (AC3) (5.1 ch)
Scanning title 1...
[14:02:35] scan: 10 previews, 720x480, 23.976 fps, autocrop = 0/2/0/0, aspect 16:9, PAR 32:27
[14:02:35] scan: title (0) job->width:720, job->height:400
[14:02:35] libhb: scan thread found 1 valid title(s)
+ title 1:
  + stream: /Users/jonr/Movies/Samples/lost.vob
  + angle(s) 0
  + duration: 00:07:29
  + size: 720x480, pixel aspect: 32/27, display aspect: 1.78, 23.976 fps
  + autocrop: 0/2/0/0
  + chapters:
    + 1: cells 0->0, 0 blocks, duration 00:07:29
  + audio tracks:
    + 1, Unknown (AC3) (5.1 ch) (iso639-2: und), 48000Hz, 448000bps
    + 2, Unknown (AC3) (2.0 ch) (iso639-2: und), 48000Hz, 192000bps
  + subtitle tracks:
    + 1, Closed Captions (iso639-2: und) (Text)
[14:02:35] 1 job(s) to process
[14:02:35] starting job
[14:02:35] Width out of bounds, scaling down to 480
[14:02:35] New dimensions 480 * 272
[14:02:35] job configuration:
[14:02:35]  * source
[14:02:35]    + /Users/jonr/Movies/Samples/lost.vob
[14:02:35]    + title 1, chapter(s) 1 to 1
[14:02:35]  * destination
[14:02:35]    + /Users/jonr/Desktop/newiphone.m4v
[14:02:35]    + container: MPEG-4 (.mp4 and .m4v)
[14:02:35]      + chapter markers
[14:02:35]  * video track
[14:02:35]    + decoder: mpeg2
[14:02:35]      + bitrate 9800 kbps
[14:02:35]    + frame rate: same as source (around 23.976 fps)
[14:02:35]    + dimensions: 720 * 480 -> 480 * 272, crop 0/2/0/0
[14:02:35]    + filter
[14:02:35]      + Rotates video 180 degrees (for mduell) (default settings)
[14:02:35]    + encoder: x264
[14:02:35]      + options: cabac=0:ref=2:me=umh:bframes=0:subme=6:8x8dct=0:trellis=0
[14:02:35]      + quality: 20.00 (RF)
[14:02:35]  * audio track 0
[14:02:35]    + decoder: Unknown (AC3) (5.1 ch) (track 1, id 80bd)
[14:02:35]      + bitrate: 448 kbps, samplerate: 48000 Hz
[14:02:35]    + mixdown: Dolby Pro Logic II
[14:02:35]    + encoder: faac
[14:02:35]      + bitrate: 128 kbps, samplerate: 48000 Hz
[14:02:35] reader: first SCR 146 id 224 DTS 22254
[14:02:35] Rotate thread started for segment 1
[14:02:35] encx264: keyint-min: 24, keyint-max: 240
[14:02:35] encx264: Encoding at constant RF 20.000000
[14:02:35] Rotate thread started for segment 0
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
[14:02:35] mpeg2: "Chapter 1" (1) at frame 0 time 3003
x264 [info]: profile Baseline, level 2.1
No accelerated IMDCT transform found
[14:02:35] sync: expecting 10789 video frames
[14:02:35] sync: first pts is 3003
[14:02:35] sync: adding 433 ms of silence to audio 0  start 39039, next 0
Encoding: task 1 of 1, 100.00 % (50.80 fps, avg 51.74 fps, ETA 00h00m00s)[14:06:04] reader: done. 0 scr changes
Encoding: task 1 of 1, 100.00 %[14:06:05] sync: got 10838 frames, 10789 expected
[14:06:05] work: average encoding speed for job is 51.717625 fps
Encoding: task 1 of 1, 100.00 %[14:06:06] mux: track 0, 10838 frames, 44547135 bytes, 788.38 kbps, fifo 64
[14:06:06] mux: track 1, 21185 frames, 7229228 bytes, 127.94 kbps, fifo 256
[14:06:06] mpeg2 done: 10839 frames
[14:06:06] render: lost time: 0 (0 frames)
[14:06:06] render: gained time: 0 (0 frames) (0 not accounted for)
x264 [info]: frame I:212   Avg QP:18.77  size: 11858  PSNR Mean Y:46.36 U:49.87 V:50.55 Avg:47.25 Global:46.48
x264 [info]: frame P:10626 Avg QP:22.44  size:  3956  PSNR Mean Y:42.83 U:48.37 V:48.87 Avg:43.90 Global:43.00
x264 [info]: mb I  I16..4: 26.9%  0.0% 73.1%
x264 [info]: mb P  I16..4:  2.8%  0.0%  7.3%  P16..4: 45.4% 23.1%  8.4%  0.0%  0.0%    skip:13.0%
x264 [info]: coded y,uvDC,uvAC intra: 64.8% 74.5% 34.9% inter: 29.0% 27.5% 1.7%
x264 [info]: i16 v,h,dc,p: 32% 20%  6% 42%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 18% 16%  7%  9%  9%  8%  7%  5%
x264 [info]: ref P L0: 83.4% 16.6%
x264 [info]: SSIM Mean Y:0.9770606
x264 [info]: PSNR Mean Y:42.902 U:48.404 V:48.903 Avg:43.969 Global:43.048 kb/s:788.50
[14:06:06] libhb: work result = 0

Rip done!
HandBrake has exited.
As you can clearly see, the new preset is *not* producing output that is twice the size. It is producing output that is merely 14% larger. Ah but wait...if you look closely, you will see I did not use the 0.9.3 preset as it would have been used in 0.9.3. I left mbtree enabled even though it was not present in 0.9.3's copy of x264. What happens if I turn it off?

Code: Select all

vob -o ~/Desktop/oldnombtreeiphone.m4v -e x264 -q 0.589 -a 1 -E faac -B 128 -R 48 -6 dpl2 -f mp4 -X 480 -m -x level=30:cabac=0:ref=2:mixed-refs:analyse=all:me=umh:no-fast-pskip=1:bframes=0:8x8dct=0:mbtree=0
[14:17:09] hb_init: checking cpu count
[14:17:09] hb_init: starting libhb thread
HandBrake svn2991 (2009120201) - Darwin x86_64 - http://handbrake.fr
2 CPUs detected
Opening /Users/jonr/Movies/Samples/lost.vob...
[14:17:09] hb_scan: path=/Users/jonr/Movies/Samples/lost.vob, title_index=1
[14:17:09] scan: trying to open with libdvdread
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
[14:17:09] dvd: not a dvd - trying as a stream/file instead
[14:17:09] file is MPEG DVD Program Stream
[14:17:12] add_audio_to_title: added AC3 audio stream 0x80bd
[14:17:12] add_audio_to_title: added AC3 audio stream 0x81bd
[14:17:12] scan: decoding previews for title 1
[14:17:12] scan: audio 0x81bd: AC-3, rate=48000Hz, bitrate=192000 Unknown (AC3) (2.0 ch)
[14:17:12] scan: audio 0x80bd: AC-3, rate=48000Hz, bitrate=448000 Unknown (AC3) (5.1 ch)
Scanning title 1...
[14:17:12] scan: 10 previews, 720x480, 23.976 fps, autocrop = 0/2/0/0, aspect 16:9, PAR 32:27
[14:17:12] scan: title (0) job->width:720, job->height:400
[14:17:12] libhb: scan thread found 1 valid title(s)
+ title 1:
  + stream: /Users/jonr/Movies/Samples/lost.vob
  + angle(s) 0
  + duration: 00:07:29
  + size: 720x480, pixel aspect: 32/27, display aspect: 1.78, 23.976 fps
  + autocrop: 0/2/0/0
  + chapters:
    + 1: cells 0->0, 0 blocks, duration 00:07:29
  + audio tracks:
    + 1, Unknown (AC3) (5.1 ch) (iso639-2: und), 48000Hz, 448000bps
    + 2, Unknown (AC3) (2.0 ch) (iso639-2: und), 48000Hz, 192000bps
  + subtitle tracks:
    + 1, Closed Captions (iso639-2: und) (Text)
[14:17:12] 1 job(s) to process
[14:17:12] starting job
[14:17:12] Width out of bounds, scaling down to 480
[14:17:12] New dimensions 480 * 272
[14:17:12] job configuration:
[14:17:12]  * source
[14:17:12]    + /Users/jonr/Movies/Samples/lost.vob
[14:17:12]    + title 1, chapter(s) 1 to 1
[14:17:12]  * destination
[14:17:12]    + /Users/jonr/Desktop/oldnombtreeiphone.m4v
[14:17:12]    + container: MPEG-4 (.mp4 and .m4v)
[14:17:12]      + chapter markers
[14:17:12]  * video track
[14:17:12]    + decoder: mpeg2
[14:17:12]      + bitrate 9800 kbps
[14:17:12]    + frame rate: same as source (around 23.976 fps)
[14:17:12]    + dimensions: 720 * 480 -> 480 * 272, crop 0/2/0/0
[14:17:12]    + filter
[14:17:12]      + Rotates video 180 degrees (for mduell) (default settings)
[14:17:12]    + encoder: x264
[14:17:12]      + options: level=30:cabac=0:ref=2:mixed-refs:analyse=all:me=umh:no-fast-pskip=1:bframes=0:8x8dct=0:mbtree=0
[14:17:12]      + quality: 0.59
[14:17:12]  * audio track 0
[14:17:12]    + decoder: Unknown (AC3) (5.1 ch) (track 1, id 80bd)
[14:17:12]      + bitrate: 448 kbps, samplerate: 48000 Hz
[14:17:12]    + mixdown: Dolby Pro Logic II
[14:17:12]    + encoder: faac
[14:17:12]      + bitrate: 128 kbps, samplerate: 48000 Hz
[14:17:12] reader: first SCR 146 id 224 DTS 22254
[14:17:12] mpeg2: "Chapter 1" (1) at frame 0 time 3003
[14:17:12] encx264: keyint-min: 24, keyint-max: 240
[14:17:12] encx264: Encoding at constant RF 20.961000
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
[14:17:12] Rotate thread started for segment 0
[14:17:12] Rotate thread started for segment 1
x264 [info]: profile Baseline, level 3.0
No accelerated IMDCT transform found
[14:17:12] sync: expecting 10789 video frames
[14:17:12] sync: first pts is 3003
[14:17:12] sync: adding 433 ms of silence to audio 0  start 39039, next 0
Encoding: task 1 of 1, 100.00 % (47.45 fps, avg 46.12 fps, ETA 00h00m00s)[14:21:07] reader: done. 0 scr changes
Encoding: task 1 of 1, 100.00 %[14:21:07] sync: got 10838 frames, 10789 expected
[14:21:07] work: average encoding speed for job is 46.090405 fps
Encoding: task 1 of 1, 100.00 %[14:21:08] mux: track 0, 10838 frames, 42303155 bytes, 748.67 kbps, fifo 32
[14:21:08] mux: track 1, 21185 frames, 7229228 bytes, 127.94 kbps, fifo 256
[14:21:08] mpeg2 done: 10839 frames
[14:21:08] render: lost time: 0 (0 frames)
[14:21:08] render: gained time: 0 (0 frames) (0 not accounted for)
x264 [info]: frame I:212   Avg QP:18.61  size: 11485  PSNR Mean Y:46.06 U:49.72 V:50.40 Avg:46.97 Global:45.82
x264 [info]: frame P:10626 Avg QP:22.29  size:  3753  PSNR Mean Y:42.58 U:48.13 V:48.65 Avg:43.66 Global:42.32
x264 [info]: mb I  I16..4: 21.5%  0.0% 78.5%
x264 [info]: mb P  I16..4:  2.4%  0.0%  7.6%  P16..4: 48.3% 22.7%  8.7%  0.7%  0.4%    skip: 9.1%
x264 [info]: coded y,uvDC,uvAC intra: 69.3% 77.1% 37.5% inter: 27.8% 26.0% 1.2%
x264 [info]: i16 v,h,dc,p: 29% 19%  5% 47%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 18% 16%  7%  9%  9%  8%  7%  5%
x264 [info]: ref P L0: 82.2% 17.8%
x264 [info]: SSIM Mean Y:0.9751107
x264 [info]: PSNR Mean Y:42.645 U:48.160 V:48.689 Avg:43.724 Global:42.366 kb/s:748.79
Muxing: this may take awhile...[14:21:08] libhb: work result = 0

Rip done!
HandBrake has exited.
That means on this source, 0.9.4's preset is creating output that is only 5% larger. Where you get 100% from 5% I frankly do not know.

Now, maybe you weren't using 0.9.3's iPhone preset. Maybe you were using the entirely unsupported legacy iPhone preset. Only....that one set an average bitrate of 960kb/s, higher than the encoded bitrate of *any* variation I just tested.

If you don't want me to be rude, provide a more convincing argument.
Last edited by jbrjake on Fri Dec 04, 2009 7:29 pm, edited 1 time in total.
Reason: Legacy iPhone was 960kbps not 900, making this even more ridiculous.

nunley
Posts: 1
Joined: Sat Dec 05, 2009 5:35 pm

Re: iPod Touch / iPhone preset

Post by nunley » Sat Dec 05, 2009 5:43 pm

Flame war aside on how my intellect is inferior to a developer. (That's why I'm here ya know?) My problem with the new Ipod Touch presets resides in the inability of my Android device to play the new encryption presets. Is there a simple, polite fix to set up the prior presets in 0.9.3? Thanks for the hard work and the great program. Really....big fan.
(NO SOUP FOR YOU!!) haha

User avatar
Rodeo
HandBrake Team
Posts: 12256
Joined: Tue Mar 03, 2009 8:55 pm

Re: iPod Touch / iPhone preset

Post by Rodeo » Sat Dec 05, 2009 6:04 pm

nunley wrote:Flame war aside on how my intellect is inferior to a developer. (That's why I'm here ya know?) My problem with the new Ipod Touch presets resides in the inability of my Android device to play the new encryption presets. Is there a simple, polite fix to set up the prior presets in 0.9.3? Thanks for the hard work and the great program. Really....big fan.
(NO SOUP FOR YOU!!) haha
Could you make less sense? Neither HandBrake nor its preset encrypt anything.

trolley
Posts: 7
Joined: Sat Dec 05, 2009 4:12 pm

Re: iPod Touch / iPhone preset

Post by trolley » Sat Dec 05, 2009 10:19 pm

I think it's pretty clear he meant "encoding presets". Was that response really necessary?

CoreyB
Posts: 9
Joined: Sat Feb 21, 2009 3:46 pm

Re: iPod Touch / iPhone preset

Post by CoreyB » Sat Dec 05, 2009 10:46 pm

I've converted a few videos with this preset, is there a reason why 2 pass isn't an option anymore?

User avatar
s55
HandBrake Team
Posts: 9602
Joined: Sun Dec 24, 2006 1:05 pm

Re: iPod Touch / iPhone preset

Post by s55 » Sat Dec 05, 2009 11:08 pm

CoreyB,
From the release announcement wrote:Another result is that 2-pass encoding is not needed. A single pass at a constant quality provides just as much compression efficiency as two passes at an average bitrate.
to set up the prior presets in 0.9.3
Fraid not. The presets would need to be changed to work with the new build of x264. You can't just use 0.9.3 presets.

jbrjake
Veteran User
Posts: 4805
Joined: Wed Dec 13, 2006 1:38 am

Re: iPod Touch / iPhone preset

Post by jbrjake » Sun Dec 06, 2009 3:02 am

2-pass was not an option for the 0.9.3 iPhone preset either, since, as I noted above, it was also CRF.

CoreyB
Posts: 9
Joined: Sat Feb 21, 2009 3:46 pm

Re: iPod Touch / iPhone preset

Post by CoreyB » Sun Dec 06, 2009 3:57 am

jbrjake wrote:2-pass was not an option for the 0.9.3 iPhone preset either, since, as I noted above, it was also CRF.
Hmm, I could have swore I used 2-pass with the iPhone preset in 0.9.3. :? But I'll take your word for it.

jbrjake
Veteran User
Posts: 4805
Joined: Wed Dec 13, 2006 1:38 am

Re: iPod Touch / iPhone preset

Post by jbrjake » Sun Dec 06, 2009 1:44 pm

Then you were either using an out of date preset from 0.9.2, or experienced a cosmetic Windows GUI placebo bug that left the option selectable even though it would have no effect.

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