鐃緒申鐃塾「わ申鐃塾デバワ申鐃緒申鐃叔はわ申鐃緒申動鐃緒申郎鐃緒申鐃緒申任鐃緒申泙鐃緒申鐃竣常申鐃瞬を、わ申鐃獣わ申鐃緒申丱鐃緒申鐃緒申儿鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申直鐃緒申鐃殉わ申鐃緒申
鐃淑駕申鐃緒申Perl Script鐃叔￥申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申任鐃�
# 鐃叔フワ申鐃緒申箸任鐃�level 4.1 鐃緒申鐃術刻申 % ch264level leveltoohigh.mp4 # level 3.1 鐃緒申鐃術刻申 % ch264level -l31 leveltoohigh.mp4
ch264level.pl
#!/usr/bin/env perl
#
# $Id: ch264level.pl,v 0.1 2012/08/31 18:13:16 dankogai Exp dankogai $
#
use strict;
use warnings;
use Getopt::Std;
getopts 'l:' => \my %opt;
my $level = $opt{l} || 41;
die <<"EOF" unless @ARGV;
$0 [-l] foo.mp4 bar.mp4
default is 41 for H.264 level 4.1
-l40 set H.264 level to 4
-l31 sets H.264 level to 3.1
see http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC#Levels
EOF
chlevel( $_, $level ) for @ARGV;
sub chlevel {
my ( $path, $level ) = @_;
open my $fh, '+<', $path or die "$path: $!";
scan:
while ( !eof($fh) ) {
read $fh, my $header, 8;
my $len = unpack( "N", $header );
my $name = substr( $header, 4 );
#warn "$name:$len";
if ( $name eq 'moov' ) {
read $fh, my $moov, $len - 8;
if (
$moov =~ s{(
trak.+
mdia.+
minf.+
stbl.+
stsd.+
avc1.+
avcC
\01..)(.)
}{ $1 . chr $level }emsx
)
{
last scan if ord $2 == $level;
warn sprintf "%s : %d -> %d\n", $path, ord $2, $level;
seek $fh, -$len + 8, 1; # rewind
syswrite $fh, $moov; # rewrite
last scan;
}
}
seek $fh, $len - 8, 1;
}
close $fh;
}
鐃緒申鐃獣わ申鐃緒申丱鐃緒申箸鐃緒申鐃緒申颪�器申鐃緒申鐃淑わ申鐃塾で￥申鐃緒申GB鐃盾あ鐃緒申侫鐃�HD動鐃緒申鐃渋随申鐃叔わ申鐃緒申
鐃緒申鐃緒申
webM鐃緒申鐃緒申M鐃緒申鐃術フワ申鐃緒申鐃殉ットでわ申鐃暑こ鐃夙わ申鐃循ぼ確実になっわ申鐃緒申鐃緒申動鐃緒申離妊侫鐃緒申鐃緒申肇鐃緒申鐃緒申鐃緒申鐃緒申鐃宿になっわ申鐃緒申鐃緒申鐃緒申鐃暑、H.264鐃緒申鐃緒申鐃緒申鐃緒申鐃瞬ワ申鐃緒申鐃緒申鐃緒申鐃緒申鼻廚箸鐃緒申鐃緒申鐃祝は￥申鐃緒申鐃獣わ申鐃塾環駈申鐃緒申鐃緒申覆鐃緒申鐃緒申鐃緒申任鐃緒申討鐃緒申里砲鐃緒申辰鐃緒申能鐃緒申鐃淑わ申鐃獣わ申鐃緒申箸鐃緒申鐃緒申鐃緒申鐃緒申鐃縮わ申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃殉わ申鐃緒申
鐃緒申鐃緒申鐃緒申由鐃塾わ申鐃淑わ申鐃緒申鐃淑�鐃緒申鐃緒申鐃緒申戰鐃塾駕申蠖緒申鐃祝わ申鐃暑こ鐃夙に削申鐃緒申鐃緒申覆鐃緒申薺わ申鼎鐃緒申泙鐃緒申鐃緒申鐃�
H.264 - WikipediaMPEG-2鐃淑どわ申同鐃粛￥申鐃緒申的鐃緒申鐃緒申鐃縮わ申鐃緒申鐃緒申鐃緒申譴随申鐃叔緒申僚鐃緒申鐃緒申表鐃緒申鐃竣ワ申鐃春ワ申鐃緒申鐃緒申函鐃緒申鐃緒申鐃緒申鐃緒申鐃駿わ申鐃緒申僖鐃緒申鐃緒申漫覆鐃緒申鐃緒申浪鐃緒申眠鐃緒申鐃緒申戮鐃春レー鐃緒申譟種申箸鳳洞鐃緒申鐃緒申鐃祝わ申表鐃緒申鐃緒申戰襪�鐃緒申鐃緒申鐃緒申鐃緒申鐃暑。H.264鐃祝緒申鬚垢覽￥申鐃緒申鐃緒申鐃熟ビットワ申鐃夙リー鐃準そ鐃塾わ申痢砲呂鐃緒申離廛鐃緒申侫鐃緒申鐃緒申鐃夙ワ申戰鐃祝わ申辰鐃緒申鐃叔緒申鐃緒申鐃緒申魯咼奪肇鐃緒申肇蝓種申鐃緒申妊鐃緒申鐃緒申匹鐃緒申鐃塾わ申必鐃竣わ申鐃緒申能鐃祝わ申表鐃緒申鐃緒申鐃暑こ鐃夙わ申多鐃緒申鐃緒申
鐃縦まわ申鐃緒申鐃緒申鐃緒申鐃熟￥申鐃緒申鐃塾プワ申鐃春ワ申鐃緒申鐃緒申肇鐃駿ワ申鐃緒申認鐃緒申鐃銃￥申鐃緒申分鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃叔わ申鐃暑か鐃緒申判鐃叔わ申鐃銃わ申鐃緒申錣縁申任鐃緒申鐃緒申鐃緒申鐃緒申覆鐃駿わ申鐃純い鐃竣ワ申鐃春ワ申鐃緒申鐃暑、鐃淑わ申戮鐃緒申磴わ申鐃駿ワ申鐃緒申鐃緒申鐃緒申弍鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃殉わ申鐃緒申鐃純え鐃緒申iPhone 4S鐃緒申 鐃熟ワ申鐃竣ワ申鐃春ワ申鐃緒申鐃緒申鐃駿ワ申4.1 鐃殉で削申鐃緒申鐃叔わ申鐃殉わ申鐃緒申鐃緒申iPhone 4鐃緒申鐃夙わ申鐃曙が鐃潤イ鐃緒申廛鐃緒申侫鐃緒申鐃緒申鐃緒申戰鐃�3.1鐃祝駕申鐃緒申鐃所、iPhone 3GS鐃祝誌申辰討魯戞鐃緒申鐃緒申薀わ申鐃竣ワ申鐃春ワ申鐃緒申鐃緒申泙撚鐃緒申鐃緒申辰討鐃緒申泙鐃緒申泙鐃緒申鐃�
鐃夙わ申鐃緒申鐃緒申iPhone 4鐃叔わ申余裕鐃叔削申鐃緒申鐃叔わ申鐃緒申鐃緒申鐃淑￥申鐃縮常申鐃緒申鐃淑わ申鐃銃わ申Retina Display鐃祝種申鐃殉ってわ申鐃殉わ申動鐃処がiPhone 4S鐃巡新iPad鐃叔削申鐃緒申鐃叔わ申鐃淑わ申鐃獣わ申鐃所す鐃緒申里任鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃銃逸申鐃緒申調鐃駿てみわ申函鐃緒申鐃駿ワ申5.1鐃夙わ申鐃祝なってわ申鐃所す鐃緒申里任鐃緒申鐃�
鐃緒申鐃緒申淵瓮わ申鐃緒申磧種申覆鐃縦まで￥申
% mp4info sm8628149.mp4 mp4info version 1.9.1 sm8628149.mp4: Track Type Info 1 video H264 [email protected], 219.000 secs, 507 kbps, 512x384 @ 30.000000 fps 2 audio MPEG-4 AAC LC, 219.080 secs, 100 kbps, 44100 Hz
鐃祝ワ申動鐃緒申HTML5鐃准￥申鐃緒申鐃緒申iOS鐃緒申鐃竣ワ申鐃緒申伐鐃緒申鐃緒申鐃緒申鐃緒申覆鐃緒申鐃縦逸申任鐃緒申鐃塾でわ申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申匹鐃緒申鐃緒申侫鐃緒申鐃緒申鐃緒申Web鐃緒申有鐃淑どわ申直鐃緒申鐃緒申鐃緒申蛤鐃緒申鐃緒申任鐃緒申泙鐃緒申鐃叔わ申鐃緒申鐃緒申
鐃宿わ申鐃淳てもそ鐃緒申焚鐃所ス鐃准ッワ申鐃緒申必鐃竣わ申鐃緒申泙鐃緒申鐃�
% ffprobe sm8628149.mp4
....
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sm8628149.mp4':
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isom
creation_time : 2009-10-25 18:07:02
copyright :
copyright-eng :
Duration: 00:03:39.08, start: 0.000000, bitrate: 610 kb/s
Stream #0.0(und): Video: h264 (High), yuv420p, 512x384, 506 kb/s, 30 fps, 30 tbr, 30030 tbn, 60 tbc
Metadata:
creation_time : 2009-10-25 07:46:14
Stream #0.1(und): Audio: aac, 44100 Hz, stereo, s16, 100 kb/s
Metadata:
creation_time : 2009-10-25 18:07:02
鐃渋際ワ申戰鐃緒申颪�器申鐃緒申鐃緒申鐃緒申鐃緒申鐃叔駕申鐃緒申鐃緒申鐃緒申鐃淑わ申鐃緒申鐃緒申鐃緒申鐃緒申鐃処う鐃祝なわ申泙鐃緒申鐃緒申鐃�
鐃渋削申 Handbrake 鐃緒申AppleTV 3鐃術のプリセ鐃獣トわ申箸辰謄鐃緒申鵐魁鐃緒申匹鐃緒申覆鐃緒申鐃緒申鐃緒申蕁�鐃緒申戰鐃�3鐃祝なわ申泙鐃緒申鐃緒申鐃緒申砲鐃舜わ申蕕削申侫鐃緒申鐃緒申襯居申鐃緒申鐃緒申肋鐃緒申鐃緒申鐃緒申覆鐃殉わ申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃叔わ申判鐃緒申鐃緒申能鐃緒申鐃夙思わ申鐃殉わ申鐃緒申
% mp4info sm8628149-appletv3.mp4 mp4info version 1.9.1 sm8628149-appletv3.mp4: Track Type Info 1 video H264 High@3, 219.100 secs, 317 kbps, 512x384 @ 29.981743 fps 2 audio MPEG-4 AAC LC, 219.103 secs, 163 kbps, 44100 Hz Encoded with: HandBrake 0.9.8 2012071800
1080p@30FPS鐃叔わ申4.1鐃叔緒申分鐃淑はわ申鐃淑のに￥申鐃淑わ申鐃緒申戰鐃�5.1鐃緒申動鐃処が鐃緒申鐃緒申覆帽鐃緒申飽鐃緒申討鐃緒申鐃塾わ申鐃緒申
鐃緒申鐃緒申鐃緒申鐃緒申浪鐃渋�鐃叔わ申鐃緒申鐃緒申鐃叔刻申鐃緒申鐃緒申鐃旬指わ申鐃緒申鐃殉り、鐃緒申鐃殉わ申鐃渋随申鐃緒申凌佑鐃緒申鐃叔ワ申戰鐃緒申鐃緒申鐃所し鐃銃わ申鐃殉ってわ申鐃緒申里任呂覆鐃緒申任鐃緒申腓�鐃緒申鐃緒申鐃緒申鐃緒申鐃熟ワ申鐃藷コ￥申鐃緒申鐃緒申鐃緒申任鐃緒申鐃緒申戮鐃緒申任鐃緒申鐃緒申泙箸鐃淑ワ申鐃藷コ￥申鐃緒申鐃緒申鐃叔わ申鐃緒申弌鐃縮居申鐃緒申鐃叔わ申鐃緒申丱鐃駿ワ申鐃春誌申鐃緒申鐃緒申鐃緒申鐃所し鐃銃わ申鐃緒申鐃熟わ申鐃叔わ申鐃緒申
鐃殉とわ申
- Mac/PC鐃叔は削申鐃緒申鐃叔わ申鐃緒申里縫鐃緒申泪侫鐃緒申筌随申屮鐃獣トで削申鐃緒申鐃叔わ申鐃淑わ申鐃獣わ申鐃初、鐃緒申戰鐃緒申調鐃駿てみよう
- 鐃緒申鐃緒申戰鐃緒申鐃夙わ申鐃緒申鐃初、鐃緒申離鐃緒申鐃緒申鐃竣トなどでワ申戰鐃緒申颪�器申鐃緒申鐃銃試し鐃銃みよう
- 鐃緒申鐃緒申侫鐃�HD(1080p)鐃叔わ申[email protected]鐃緒申HD(720p)鐃叔わ申[email protected]鐃叔も充分鐃淑はわ申鐃緒申5.1鐃獣わ申4K2K鐃術でわ申鐃緒申?
- 鐃銃ワ申鐃藷コ￥申鐃宿は最醐申鐃緒申鐃緒申
- 鐃緒申聴鐃峻にわ申鐃緒申鐃緒申鐃緒申鐃淑わ申鐃緒申鐃緒申砲癲�鐃緒申鐃藷コ￥申鐃緒申鐃緒申鐃緒申鐃緒申鐃重�鐃准なワ申戰鐃緒申鐃緒申鐃緒申鐃�!
- 必鐃竣わ申発鐃重所が鐃緒申鐃獣わ申鐃所し鐃銃￥申
Dan the HD Blogger
鐃緒申鐃塾ブワ申鐃緒申鐃祝ワ申鐃緒申鐃夙わ申鐃緒申砲鐃�鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申必鐃竣でわ申鐃緒申
鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申
鐃緒申鐃塾居申鐃緒申鐃祝は居申鐃縦ユー鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃夙わ申鐃叔わ申鐃殉わ申鐃緒申