[FFmpeg-user] Is it possible to convert any video to DV 50 Mbps using FFMpeg ?
Shyam Sundar
sw.craftsman at gmail.com
Thu Jul 3 20:22:53 CEST 2014
Hi,
Thanks Carl & Andy for the reply,
I tried .. but it doesn't seem to generate 50 Mbps video-bitrate output. I
am checking video properties in Media Info.
--------------------------------------------------------------------------------------------------------------------------
C:\>ffmpeg -i C:\Wildlife.wmv -f dv -target ntsc-dv -b:v 50m -
qscale 15 -vol 256 -strict experimental -pix_fmt yuv422p "C:\Wildlife.dv"
ffmpeg version 2.2.1 Copyright (c) 2000-2014 the FFmpeg developers
built on Apr 11 2014 00:32:01 with gcc 4.8.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
--enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca
--enable-libfreetyp
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
--ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr
--enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvidstab
--enable-libvo-aa
cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
--enable-libwavp
ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 66.100 / 52. 66.100
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 33.100 / 55. 33.100
libavdevice 55. 10.100 / 55. 10.100
libavfilter 4. 2.100 / 4. 2.100
libswscale 2. 5.102 / 2. 5.102
libswresample 0. 18.100 / 0. 18.100
libpostproc 52. 3.100 / 52. 3.100
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, asf, from 'C:\Users\Public\Videos\Sample Videos\Wildlife.wmv':
Metadata:
SfOriginalFPS : 299700
WMFSDKVersion : 11.0.6001.7000
WMFSDKNeeded : 0.0.0.0000
comment : Footage: Small World Productions, Inc; Tourism New
Zealand
| Producer: Gary F. Spradling | Music: Steve Ball
title : Wildlife in HD
copyright : © 2008 Microsoft Corporation
IsVBR : 0
DeviceConformanceTemplate: AP at L3
Duration: 00:00:30.09, start: 0.000000, bitrate: 6977 kb/s
Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, stereo,
fltp
, 192 kb/s
Stream #0:1(eng): Video: vc1 (Advanced) (WVC1 / 0x31435657), yuv420p,
1280x7
20, 5942 kb/s, 29.97 tbr, 1k tbn, 1k tbc
Please use -q:a or -q:v, -qscale is ambiguous
File 'C:\Users\Public\Videos\Sample Videos\Wildlife.dv' already exists.
Overwrit
e ? [y/N] y
Output #0, dv, to 'C:\Users\Public\Videos\Sample Videos\Wildlife.dv':
Metadata:
SfOriginalFPS : 299700
WMFSDKVersion : 11.0.6001.7000
WMFSDKNeeded : 0.0.0.0000
comment : Footage: Small World Productions, Inc; Tourism New
Zealand
| Producer: Gary F. Spradling | Music: Steve Ball
title : Wildlife in HD
copyright : © 2008 Microsoft Corporation
IsVBR : 0
DeviceConformanceTemplate: AP at L3
encoder : Lavf55.33.100
Stream #0:0(eng): Video: dvvideo, yuv422p, 720x480, q=2-31, 90k tbn,
29.97 t
bc
Stream #0:1(eng): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Stream mapping:
Stream #0:1 -> #0:0 (vc1 -> dvvideo)
Stream #0:0 -> #0:1 (wmav2 -> pcm_s16le)
Press [q] to stop, [?] for help
frame= 19 fps=0.0 q=0.0 size= 0kB time=00:00:00.63 bitrate=
0.0kbits/s
frame= 39 fps= 39 q=0.0 size= 0kB time=00:00:01.30 bitrate=
0.0kbits/s
frame= 60 fps= 39 q=0.0 size= 0kB time=00:00:02.00 bitrate=
0.0kbits/s
frame= 81 fps= 40 q=0.0 size= 0kB time=00:00:02.70 bitrate=
0.0kbits/s
frame= 102 fps= 40 q=0.0 size= 0kB time=00:00:03.40 bitrate=
0.0kbits/s
frame= 122 fps= 40 q=0.0 size= 4453kB time=00:00:04.07
bitrate=8961.5kbits/s
frame= 146 fps= 41 q=0.0 size= 8203kB time=00:00:04.87
bitrate=13794.4kbits/
frame= 167 fps= 41 q=0.0 size= 14531kB time=00:00:05.57
bitrate=21363.1kbits/
frame= 186 fps= 41 q=0.0 size= 20391kB time=00:00:06.20
bitrate=26915.0kbits/
frame= 204 fps= 40 q=0.0 size= 28359kB time=00:00:06.80
bitrate=34130.6kbits/
frame= 230 fps= 41 q=0.0 size= 32109kB time=00:00:07.67
bitrate=34275.3kbits/
frame= 258 fps= 42 q=0.0 size= 36562kB time=00:00:08.60
bitrate=34793.1kbits/
frame= 286 fps= 43 q=0.0 size= 40312kB time=00:00:09.54
bitrate=34606.0kbits/
frame= 314 fps= 44 q=0.0 size= 45703kB time=00:00:10.47
bitrate=35735.0kbits/
frame= 343 fps= 45 q=0.0 size= 49688kB time=00:00:11.44
bitrate=35565.6kbits/
frame= 365 fps= 45 q=0.0 size= 55078kB time=00:00:12.17
bitrate=37047.9kbits/
frame= 386 fps= 45 q=0.0 size= 60938kB time=00:00:12.87
bitrate=38759.2kbits/
frame= 407 fps= 44 q=0.0 size= 66094kB time=00:00:13.58
bitrate=39869.7kbits/
frame= 428 fps= 44 q=0.0 size= 71250kB time=00:00:14.28
bitrate=40871.3kbits/
frame= 448 fps= 44 q=0.0 size= 76641kB time=00:00:14.94
bitrate=42000.9kbits/
frame= 471 fps= 44 q=0.0 size= 81094kB time=00:00:15.71
bitrate=42271.1kbits/
frame= 493 fps= 44 q=0.0 size= 84844kB time=00:00:16.44
bitrate=42252.3kbits/
frame= 514 fps= 44 q=0.0 size= 89531kB time=00:00:17.15
bitrate=42765.0kbits/
frame= 532 fps= 44 q=0.0 size= 96328kB time=00:00:17.75
bitrate=44454.8kbits/
frame= 549 fps= 43 q=0.0 size= 102656kB time=00:00:18.31
bitrate=45908.2kbits/
frame= 565 fps= 43 q=0.0 size= 109922kB time=00:00:18.85
bitrate=47765.3kbits/
frame= 583 fps= 42 q=0.0 size= 116250kB time=00:00:19.45
bitrate=48955.5kbits/
frame= 603 fps= 42 q=0.0 size= 121875kB time=00:00:20.12
bitrate=49622.0kbits/
frame= 622 fps= 42 q=0.0 size= 128203kB time=00:00:20.75
bitrate=50604.1kbits/
frame= 641 fps= 42 q=0.0 size= 134062kB time=00:00:21.38
bitrate=51348.3kbits/
frame= 664 fps= 42 q=0.0 size= 138516kB time=00:00:22.15
bitrate=51216.3kbits/
frame= 686 fps= 42 q=0.0 size= 145078kB time=00:00:22.88
bitrate=51922.4kbits/
frame= 708 fps= 42 q=0.0 size= 150000kB time=00:00:23.62
bitrate=52015.8kbits/
frame= 728 fps= 42 q=0.0 size= 155625kB time=00:00:24.29
bitrate=52483.8kbits/
frame= 749 fps= 42 q=0.0 size= 160312kB time=00:00:24.99
bitrate=52548.8kbits/
frame= 774 fps= 42 q=0.0 size= 164297kB time=00:00:25.82
bitrate=52115.3kbits/
frame= 799 fps= 42 q=0.0 size= 166875kB time=00:00:26.65
bitrate=51276.9kbits/
frame= 824 fps= 43 q=0.0 size= 171094kB time=00:00:27.49
bitrate=50978.1kbits/
frame= 846 fps= 43 q=0.0 size= 176016kB time=00:00:28.22
bitrate=51080.8kbits/
frame= 867 fps= 43 q=0.0 size= 180938kB time=00:00:28.92
bitrate=51237.3kbits/
frame= 887 fps= 42 q=0.0 size= 186797kB time=00:00:29.59
bitrate=51703.9kbits/
frame= 901 fps= 42 q=0.0 Lsize= 211172kB time=00:00:30.09
bitrate=57486.5kbits
/s
video:211172kB audio:5651kB subtitle:0 data:0 global headers:0kB muxing
overhead
-2.606347%
--------------------------------------------------------------------------------------------------------------------------
Video Properties in Media Info :
--------------------------------------------------------------------------------------------------------------------------
General
Complete name : C:\Wildlife.dv
Format : DV
Commercial name : DVCPRO
File size : 206 MiB
Duration : 1mn 0s
Overall bit rate mode : Constant
Overall bit rate : 28.8 Mbps
Recorded date : 1970-01-01 00:00:00.000
Video
Format : DV
Commercial name : DVCPRO
Duration : 1mn 0s
Bit rate mode : Constant
*Bit rate : 24.4 Mbps*
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 29.970 fps
Standard : NTSC
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Bottom Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 2.357
Time code of first frame : 00:00:00:00
Time code source : Subcode time code
Stream size : 175 MiB (85%)
Audio #1
ID : 0
Format : PCM
Duration : 1mn 0s
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Encoded bit rate : 0 bps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 11.0 MiB (5%)
Audio #2
ID : 1
Format : PCM
Duration : 1mn 0s
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Encoded bit rate : 0 bps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 11.0 MiB (5%)
--------------------------------------------------------------------------------------------------------------------------
Was wondering if you have any further suggestion ...
Thanks,
Rajiv
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