Beda .flv dan .mp4
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Mahmud Ghaznawie
Jan 23, 2010, 5:19:55 AM1/23/10
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Saya men-download file dari youtube. Ada 2 pilihan, .flv atau HQ (dugaan saya 'high quality') .mp4. Saya coba download keduanya. Yg .flv ukuran 19 Mb sedang yang .mp4 malah hanya berukuran 11 Mb. Mata saya sih ngga bisa membedakan keduanya (walaupun di playback full screen). Apakah memang resolusinya sama tapi kompresinya lebih bagus di .mp4 ataukah ada perbedaan yang ngga kentara?
Mohon pencerahan..
Wassalam, MG
Mohon pencerahan..
Wassalam, MG
冴羽獠 (Ryo Saeba)
Jan 23, 2010, 5:39:40 AM1/23/10
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2010/1/23 Mahmud Ghaznawie <mahmud...@gmail.com>:
coba mana url youtube-nya.
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Mahmud Ghaznawie
Jan 23, 2010, 5:44:43 AM1/23/10
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2010/1/23 冴羽獠 (Ryo Saeba) <ryos...@gmail.com>
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Silahkan klik: http://www.youtube.com/profile?user=hammadshams#p/u/0/ZDn9zcsQ5Sw
MG
冴羽獠 (Ryo Saeba)
Jan 23, 2010, 6:17:20 AM1/23/10
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On Sat, Jan 23, 2010 at 5:44 PM, Mahmud Ghaznawie <mahmud...@gmail.com> wrote:
> Silahkan klik:
> http://www.youtube.com/profile?user=hammadshams#p/u/0/ZDn9zcsQ5Sw
yang mp4 bitrate-nya 118 Kbps, yang flv bitrate-nya 243 Kbps, jadi dari filesize wajar yang flv lebih besar. mp4 memang pakai codec h.264 yang lebih efisien, bitrate yang lebih kecil kualitas videonya menyamai flv yang menggunakan h.263.
$ mediainfo test\ 480p.*
General
Complete name : test 480p.flv
Format : Flash Video
File size : 19.3 MiB
Duration : 8mn 16s
Overall bit rate : 326 Kbps
Video
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L2.2
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Muxing mode : Container profile=Unknown@2.2
Duration : 8mn 16s
Bit rate : 243 Kbps
Width : 640 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 15.000 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.053
Stream size : 14.4 MiB (74%)
Audio
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Format settings, PS : Yes
Duration : 8mn 16s
Bit rate : 76.6 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Resolution : 16 bits
Stream size : 4.53 MiB (23%)
General
Complete name : test 480p.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 11.4 MiB
Duration : 8mn 15s
Overall bit rate : 193 Kbps
Encoded date : UTC 2010-01-13 04:44:45
Tagged date : UTC 2010-01-13 04:44:45
gsst : 0
gstd : 496116
gssd : B4A7D6041MH
Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L2.1
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 8mn 15s
Bit rate mode : Variable
Bit rate : 118 Kbps
Maximum bit rate : 1 185 Kbps
Width : 480 pixels
Height : 360 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 15.000 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.045
Stream size : 6.96 MiB (61%)
Title : (C) 2007 Google Inc. v08.13.2007.
Encoded date : UTC 2010-01-13 04:44:45
Tagged date : UTC 2010-01-13 04:44:45
Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Format settings, PS : Yes
Codec ID : 40
Duration : 8mn 15s
Bit rate mode : Variable
Bit rate : 73.5 Kbps
Maximum bit rate : 84.4 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Resolution : 16 bits
Stream size : 4.35 MiB (38%)
Title : (C) 2007 Google Inc. v08.13.2007.
Encoded date : UTC 2010-01-13 04:44:45
Tagged date : UTC 2010-01-13 04:44:45
> Silahkan klik:
> http://www.youtube.com/profile?user=hammadshams#p/u/0/ZDn9zcsQ5Sw
yang mp4 bitrate-nya 118 Kbps, yang flv bitrate-nya 243 Kbps, jadi dari filesize wajar yang flv lebih besar. mp4 memang pakai codec h.264 yang lebih efisien, bitrate yang lebih kecil kualitas videonya menyamai flv yang menggunakan h.263.
$ mediainfo test\ 480p.*
General
Complete name : test 480p.flv
Format : Flash Video
File size : 19.3 MiB
Duration : 8mn 16s
Overall bit rate : 326 Kbps
Video
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L2.2
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Muxing mode : Container profile=Unknown@2.2
Duration : 8mn 16s
Bit rate : 243 Kbps
Width : 640 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 15.000 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.053
Stream size : 14.4 MiB (74%)
Audio
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Format settings, PS : Yes
Duration : 8mn 16s
Bit rate : 76.6 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Resolution : 16 bits
Stream size : 4.53 MiB (23%)
General
Complete name : test 480p.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 11.4 MiB
Duration : 8mn 15s
Overall bit rate : 193 Kbps
Encoded date : UTC 2010-01-13 04:44:45
Tagged date : UTC 2010-01-13 04:44:45
gsst : 0
gstd : 496116
gssd : B4A7D6041MH
Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L2.1
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 8mn 15s
Bit rate mode : Variable
Bit rate : 118 Kbps
Maximum bit rate : 1 185 Kbps
Width : 480 pixels
Height : 360 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 15.000 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.045
Stream size : 6.96 MiB (61%)
Title : (C) 2007 Google Inc. v08.13.2007.
Encoded date : UTC 2010-01-13 04:44:45
Tagged date : UTC 2010-01-13 04:44:45
Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Format settings, PS : Yes
Codec ID : 40
Duration : 8mn 15s
Bit rate mode : Variable
Bit rate : 73.5 Kbps
Maximum bit rate : 84.4 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Resolution : 16 bits
Stream size : 4.35 MiB (38%)
Title : (C) 2007 Google Inc. v08.13.2007.
Encoded date : UTC 2010-01-13 04:44:45
Tagged date : UTC 2010-01-13 04:44:45
Mahmud Ghaznawie
Jan 23, 2010, 7:25:39 AM1/23/10
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2010/1/23 冴羽獠 (Ryo Saeba) <ryos...@gmail.com>
On Sat, Jan 23, 2010 at 5:44 PM, Mahmud Ghaznawie <mahmud...@gmail.com> wrote:
> Silahkan klik:
> http://www.youtube.com/profile?user=hammadshams#p/u/0/ZDn9zcsQ5Sw
Terima kasih informasinya. Berarti utk menghemat 'space' mending download jadi MP4 yaa.. Toh kualitas gambarnya sama saja.
Wassalam, MG
Wassalam, MG
Die~~ ٩๏̯͡๏۶ ̿ ̿ ̿ ̿ ̿̿’\̵͇̿̿\=(•̪●) ɹɐzǝupɐɥʞ ɐzɹıɯ
Jan 23, 2010, 8:26:14 AM1/23/10
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2010/1/23 Mahmud Ghaznawie <mahmud...@gmail.com>:
> Terima kasih informasinya. Berarti utk menghemat 'space' mending download
> jadi MP4 yaa.. Toh kualitas gambarnya sama saja.
>
> Wassalam, MG
>
> --> jadi MP4 yaa.. Toh kualitas gambarnya sama saja.
>
> Wassalam, MG
>
bener.... kalau rajin mengkoleksi film bagusnya emang mp4 disamping
itu portble harware lebih banyak yang support mp4 jadi ga perlu di
convert2 lagi dari flv ke mp4
tapi flv itu kalau menurut saya ntah kenapa kok lebih banyak digunakan
di website streaming ? pasti ada 1 point kelebihannya
( jadi teringat ogg rm dan beberapa extention multimedia yang kurang
"Rajin" digunakan )
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Eko S
Jan 23, 2010, 7:27:46 PM1/23/10
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2010/1/23 冴羽獠 (Ryo Saeba) <ryos...@gmail.com>
On Sat, Jan 23, 2010 at 5:44 PM, Mahmud Ghaznawie <mahmud...@gmail.com> wrote:
> Silahkan klik:
> http://www.youtube.com/profile?user=hammadshams#p/u/0/ZDn9zcsQ5Sw
Wah makasih nih informasinya, selama ini downloadnya juga dengan format .flv...ternyata lebih hemat .mp4 dengan kualitas video yang sama
-Eko Setiawan-
http://belajarubuntu.com
-Eko Setiawan-
http://belajarubuntu.com
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