Any chance someone can help me make this a 2 or 3 pass command:
Using "FFmpeg Win64 Static build by Kyle Schwarz, compiled on: Sep 19 2012 16:31:43" in the Command Prompt of Windows7(x64). I am a newbie to FFMPEG and trying to convert videos for my website from .mp4 to .webm (videos edited and mixed in AdobePremiereProCS6 where then encoded into .mp4 from .mts Canon HXG10 recordings). Original video file is 1080p quality.
c:\ff/ffmpeg -i c:\ff/xxx.mp4 -codec:v libvpx -quality good -cpu-used
0 -b:v 7000k -qmin 10 -qmax 42 -maxrate 500k -bufsize 1500k -threads 8
-vf scale=-1:1080 -codec:a libvorbis -b:a 192k -f webm c:\ff/xxx.webm
as '1 pass' the follosing works for me on build including vorbis, libvpx...
for hints on 2 pass libvpx see here
rob@ Pictures$ ffmpeg -y -i me939371029.mp4 -r 30 out3.webm
ffmpeg version git-2012-08-29-85c8303 Copyright (c) 2000-2012 the FFmpeg developers
built on Aug 29 2012 08:59:14 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --enable-gpl --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3
libavutil 51. 70.100 / 51. 70.100
libavcodec 54. 54.100 / 54. 54.100
libavformat 54. 25.104 / 54. 25.104
libavdevice 54. 2.100 / 54. 2.100
libavfilter 3. 14.100 / 3. 14.100
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'me939371029.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf54.22.100
Duration: 00:00:08.01, start: 0.000000, bitrate: 343 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p, 1296x972 [SAR 1:1 DAR 4:3], 316 kb/s, 0.57 fps, 0.50 tbr, 1 tbn, 1 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, s16, 64 kb/s
Metadata:
handler_name : SoundHandler
[libvpx @ 0x1e7f500] v1.1.0
Output #0, webm, to 'out3.webm':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf54.25.104
Stream #0:0(und): Video: vp8, yuv420p, 1296x972 [SAR 1:1 DAR 4:3], q=-1--1, 200 kb/s, 1k tbn, 30 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: vorbis, 44100 Hz, mono, flt
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libvpx)
Stream #0:1 -> #0:1 (aac -> libvorbis)
Press [q] to stop, [?] for help
[libvorbis @ 0x1e67060] Que input is backward in time
frame= 4 fps=0.0 q=0.0 Lsize= 122kB time=00:00:07.99 bitrate= 124.6kbits/s
video:51kB audio:63kB subtitle:0 global headers:3kB muxing overhead 3.241658%
