I am trying to convert a flv video to mp4 using a264, but the result video has a out of sync audio/video. The audio seems ok but the video seems slow and therefore out of sync with the audio.
Here is the command I am running:
/opt/local/bin/ffmpeg -i complaint.flv -f mp4 -vcodec libx264 -acodec aac -copyts -strict experimental -fpre /opt/local/share/ffmpeg/libx264-lossless_slow.ffpreset -ab 44k -threads 0 -crf 23 complaint.mp4
And the output:
Desktop /opt/local/bin/ffmpeg -i complaint.flv -f mp4 -vcodec libx264 -acodec aac -copyts -strict experimental -fpre /opt/local/share/ffmpeg/libx264-lossless_slow.ffpreset -ab 44k -threads 0 -crf 23 complaint.mp4
ffmpeg version 0.7.8, Copyright (c) 2000-2011 the FFmpeg developers
built on Jan 12 2012 21:12:26 with gcc 4.2.1 (Apple Inc. build 5666) (dot 3)
configuration: --prefix=/opt/local --enable-gpl --enable-postproc --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libdirac --enable-libschroedinger --enable-libopenjpeg --enable-libxvid --enable-libx264 --enable-libvpx --enable-libspeex --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/gcc-4.2 --arch=x86_64 --enable-yasm
libavutil 50. 43. 0 / 50. 43. 0
libavcodec 52.123. 0 / 52.123. 0
libavformat 52.111. 0 / 52.111. 0
libavdevice 52. 5. 0 / 52. 5. 0
libavfilter 1. 80. 0 / 1. 80. 0
libswscale 0. 14. 1 / 0. 14. 1
libpostproc 51. 2. 0 / 51. 2. 0
[flv # 0x7fe57a04ac00] Estimating duration from bitrate, this may be inaccurate
Input #0, flv, from 'complaint.flv':
Metadata:
duration : 7
creationdate : Thu Jan 12 23:47:24
description : Recorded using VideoRecording example.
Duration: 00:00:06.61, start: 0.000000, bitrate: N/A
Stream #0.0: Video: flv, yuv420p, 288x288, 1k tbr, 1k tbn, 1k tbc
Stream #0.1: Audio: nellymoser, 11025 Hz, mono, s16
File 'complaint.mp4' already exists. Overwrite ? [y/N] y
[buffer # 0x7fe579c32cc0] w:288 h:288 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
[libx264 # 0x7fe57a044600] using cpu capabilities: none!
[libx264 # 0x7fe57a044600] profile High, level 4.2
[libx264 # 0x7fe57a044600] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options: cabac=1 ref=2 deblock=1:0:0 analyse=0x3:0x33 me=umh subme=6 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.41 aq=1:1.00
Output #0, mp4, to 'complaint.mp4':
Metadata:
duration : 7
creationdate : Thu Jan 12 23:47:24
description : Recorded using VideoRecording example.
encoder : Lavf52.111.0
Stream #0.0: Video: libx264, yuv420p, 288x288, q=0-69, 200 kb/s, 1k tbn, 1k tbc
Stream #0.1: Audio: aac, 11025 Hz, mono, s16, 44 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press [q] to stop, [?] for help
frame= 6557 fps=106 q=-1.0 Lsize= 685kB time=00:00:03.62 bitrate=1549.1kbits/s dup=6367 drop=0
video:615kB audio:17kB global headers:0kB muxing overhead 8.361360%
frame I:27 Avg QP:19.98 size: 8242
[libx264 # 0x7fe57a044600] frame P:6530 Avg QP:30.71 size: 62
[libx264 # 0x7fe57a044600] mb I I16..4: 11.1% 79.3% 9.6%
[libx264 # 0x7fe57a044600] mb P I16..4: 0.1% 0.2% 0.0% P16..4: 1.2% 0.2% 0.3% 0.0% 0.0% skip:98.0%
[libx264 # 0x7fe57a044600] 8x8 transform intra:77.8% inter:64.9%
[libx264 # 0x7fe57a044600] coded y,uvDC,uvAC intra: 75.3% 81.3% 33.3% inter: 0.5% 0.7% 0.1%
[libx264 # 0x7fe57a044600] i16 v,h,dc,p: 78% 9% 10% 3%
[libx264 # 0x7fe57a044600] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 11% 32% 3% 4% 5% 2% 5% 4%
[libx264 # 0x7fe57a044600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 56% 7% 9% 3% 4% 7% 3% 7% 3%
[libx264 # 0x7fe57a044600] i8c dc,h,v,p: 45% 15% 34% 6%
[libx264 # 0x7fe57a044600] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 # 0x7fe57a044600] ref P L0: 80.5% 9.5% 10.0%
[libx264 # 0x7fe57a044600] kb/s:767.20
Is there something I'm missing to make sure the video and audio line up perfectly?
For those who may be trying this, I was better of recording flash in h264 right away, instead of using yuv420p for audio codec. That worked like a charm. Adding the flag -async 1 also helped.
Update: Check out this bit from the ffmpeg documentation (http://ffmpeg.org/ffmpeg.html):
-async: Audio sync method. "Stretches/squeezes" the audio stream to match the timestamps, the parameter is the maximum samples per second by which the audio is changed. -async 1 is a special case where only the start of the audio stream is corrected without any later correction. This option has been deprecated. Use the aresample audio filter instead.
You can read about the aresample filter here: http://ffmpeg.org/trac/ffmpeg/wiki/FilteringGuide
Related
I'm trying to insert 13 seconds of black video at the start of a video that has sound using ffmpeg like so:
ffmpeg -f lavfi -i "color=c=black:s=720x406:r=25:sar=1/1" -i input.mp4 -filter_complex \
"[0:v] trim=end=13,setpts=PTS-STARTPTS [blackstart]; \
[blackstart] [1:v] concat=n=2:v=1:a=0[out]" \
-map "[out]" -c:a copy output.mp4
However the sound is not being maintained. What am I doing incorrectly? -c:a copy does not seem to work should I be using a [1:a] somewhere?
garrett-retina:~ garrett-macbookretina$ ffmpeg -f lavfi -i "color=c=red:s=720x406:r=25:sar=1/1" -i input.mp4 -filter_complex \
> "[0:v] trim=end=13,setpts=PTS-STARTPTS [blackstart]; \
> [blackstart] [1:v] concat=n=2:v=1:a=0[out]" \
> -map "[out]" -c:a copy output.mp4
ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
built with Apple LLVM version 5.0 (clang-500.2.76) (based on LLVM 3.3svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
libavutil 55. 34.100 / 55. 34.100
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.100 / 57. 56.100
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Input #0, lavfi, from 'color=c=red:s=720x406:r=25:sar=1/1':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x406 [SAR 1:1 DAR 360:203], 25 tbr, 25 tbn, 25 tbc
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.56.100
Duration: 33:59:47.32, start: 0.000000, bitrate: 179 kb/s
Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x406 [SAR 1:1 DAR 360:203], 62 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 16000 Hz, stereo, fltp, 114 kb/s (default)
Metadata:
handler_name : SoundHandler
[libx264 # 0x7fa344048400] using SAR=1/1
[libx264 # 0x7fa344048400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 # 0x7fa344048400] profile High, level 3.0
[libx264 # 0x7fa344048400] 264 - core 148 r2748 97eaef2 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/Users/garrett-macbookretina/Desktop/Best of Luck With the Wall/exports/test.mp4':
Metadata:
encoder : Lavf57.56.100
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 720x406 [SAR 1:1 DAR 360:203], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
Metadata:
encoder : Lavc57.64.101 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream mapping:
Stream #0:0 (rawvideo) -> trim
Stream #1:0 (h264) -> concat:in1:v0
concat -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
frame=3060008 fps=432 q=-1.0 Lsize= 957795kB time=34:00:00.20 bitrate= 64.1kbits/s speed=17.3x
video:921972kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.885564%
[libx264 # 0x7fa344048400] frame I:16585 Avg QP:13.67 size: 49743
[libx264 # 0x7fa344048400] frame P:770518 Avg QP:16.48 size: 91
[libx264 # 0x7fa344048400] frame B:2272905 Avg QP:25.11 size: 22
[libx264 # 0x7fa344048400] consecutive B-frames: 0.9% 0.1% 0.4% 98.6%
[libx264 # 0x7fa344048400] mb I I16..4: 10.2% 39.7% 50.1%
[libx264 # 0x7fa344048400] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 0.7% 0.0% 0.0% 0.0% 0.0% skip:99.1%
[libx264 # 0x7fa344048400] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.2% 0.0% 0.0% direct: 0.0% skip:99.8% L0:46.9% L1:53.1% BI: 0.1%
[libx264 # 0x7fa344048400] 8x8 transform intra:39.9% inter:52.0%
[libx264 # 0x7fa344048400] coded y,uvDC,uvAC intra: 86.1% 77.1% 60.4% inter: 0.0% 0.1% 0.0%
[libx264 # 0x7fa344048400] i16 v,h,dc,p: 66% 10% 13% 11%
[libx264 # 0x7fa344048400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 20% 14% 6% 7% 7% 7% 7% 11%
[libx264 # 0x7fa344048400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 19% 11% 7% 9% 8% 8% 7% 9%
[libx264 # 0x7fa344048400] i8c dc,h,v,p: 59% 19% 17% 5%
[libx264 # 0x7fa344048400] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 # 0x7fa344048400] ref P L0: 53.9% 4.0% 16.6% 25.5% 0.0%
[libx264 # 0x7fa344048400] ref B L0: 27.9% 71.6% 0.5%
[libx264 # 0x7fa344048400] ref B L1: 97.6% 2.4%
[libx264 # 0x7fa344048400] kb/s:61.71
garrett-retina:~ garrett-macbookretina$
You need to add silent audio as well. One method using anullsrc:
ffmpeg \
-f lavfi -i "color=c=black:s=720x406:r=25:sar=1/1:d=13" \
-f lavfi -t 1 -i anullsrc=cl=stereo:r=16000 \
-i input.mp4 \
-filter_complex \
"[2:v]setpts=PTS-STARTPTS[video]; \
[0:v][1:a][video][2:a]concat=n=2:v=1:a=1[v][a]" \
-map "[v]" -map "[a]" output.mp4
The silent audio duration only needs to be shorter than the black video duration; the concat filter will pad the rest automatically.
I'm unable to test this example at the moment, but if it is broken let me know and I can fix it later.
I'm doing some extreme slow motion in ffmpeg on a video, both video and audio track, but can't quite get my calculations correct.
The input video is 00:06:41:00 at 24fps (9624 frames).
I need the output video to be 34:00:00:00 at 24fps (2937600 frames).
I tried these for the video and audio:
setpts=305.237*PTS
atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.807668329177057
However the video overshoots by 00:01:19:08 and the audio I'm unsure, on one player it stops somewhere around 8 hours but on another it just continues. What are the correct formulas?
Also on VLC the video has grey frames between video frames - do I need to interpolate to have continuous video frames?
Edit by #Mulvya:
fred-macbookpro:~ srederiquefantune$ ffmpeg -i /Users/srederiquefantune/Desktop/test.mp4 -filter_complex "[0:v]setpts=305.237*PTS, scale=320:240[v];[0:a]atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.5, atempo=0.807668329177057[a]" -map "[v]" -map "[a]" /Users/srederiquefantune/Desktop/output2.mp4
ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.2.1 (GCC) (Apple Inc. build 5666) (dot 3)
configuration: --prefix=/opt/local --enable-swscale --enable-avfilter --enable-avresample --enable-libmp3lame --enable-libvorbis --enable-libopus --enable-libtheora --enable-libschroedinger --enable-libopenjpeg --enable-libmodplug --enable-libvpx --enable-libsoxr --enable-libspeex --enable-libass --enable-libbluray --enable-lzma --enable-gnutls --enable-fontconfig --enable-libfreetype --enable-libfribidi --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --disable-indev=jack --disable-outdev=xv --disable-audiotoolbox --disable-videotoolbox --disable-sdl2 --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/gcc-4.2 --disable-filter=coreimage --disable-filter=coreimagesrc --enable-vda --disable-indev=avfoundation --arch=x86_64 --enable-yasm --enable-libx265 --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid
libavutil 55. 34.100 / 55. 34.100
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.100 / 57. 56.100
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/srederiquefantune/Desktop/test.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
Duration: 00:06:41.25, start: 0.000000, bitrate: 2294 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2172 kb/s, 24 fps, 120 tbr, 90k tbn, 48 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 112 kb/s (default)
Metadata:
handler_name : VideoHandler
[libx264 # 0x104801200] using SAR=4/3
[libx264 # 0x104801200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64
[libx264 # 0x104801200] profile High, level 1.3
[libx264 # 0x104801200] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/Users/srederiquefantune/Desktop/output2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.56.100
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 320x240 [SAR 4:3 DAR 16:9], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
Metadata:
encoder : Lavc57.64.101 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
encoder : Lavc57.64.101 aac
Stream mapping:
Stream #0:0 (h264) -> setpts
Stream #0:1 (aac) -> atempo
scale -> Stream #0:0 (libx264)
atempo -> Stream #0:1 (aac)
Press [q] to stop, [?] for help
[output stream 0:1 # 0x104105420] 100 buffers queued in output stream 0:1, something may be wrong.
frame= 1 fps=0.0 q=0.0 size= 3kB time=00:00:22.01 bitrate= 1.2kbits/s
…
frame=2938515 fps=281 q=-1.0 Lsize= 2439310kB time=35:19:08.66 bitrate= 157.2kbits/s dup=2928888 drop=1 speed=12.1x
video:389302kB audio:1994106kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.345466%
[libx264 # 0x104801200] frame I:15399 Avg QP:14.27 size: 20680
[libx264 # 0x104801200] frame P:740673 Avg QP:17.21 size: 68
[libx264 # 0x104801200] frame B:2182443 Avg QP:25.83 size: 14
[libx264 # 0x104801200] consecutive B-frames: 0.9% 0.2% 0.1% 98.8%
[libx264 # 0x104801200] mb I I16..4: 7.9% 47.3% 44.8%
[libx264 # 0x104801200] mb P I16..4: 0.0% 0.1% 0.1% P16..4: 0.7% 0.1% 0.1% 0.0% 0.0% skip:99.0%
[libx264 # 0x104801200] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.1% 0.0% 0.0% direct: 0.0% skip:99.9% L0:14.0% L1:85.9% BI: 0.0%
[libx264 # 0x104801200] 8x8 transform intra:48.2% inter:52.8%
[libx264 # 0x104801200] coded y,uvDC,uvAC intra: 91.4% 90.7% 88.0% inter: 0.1% 0.1% 0.0%
[libx264 # 0x104801200] i16 v,h,dc,p: 78% 4% 11% 7%
[libx264 # 0x104801200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 13% 17% 7% 8% 10% 7% 10% 10%
[libx264 # 0x104801200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 13% 11% 8% 10% 11% 8% 10% 9%
[libx264 # 0x104801200] i8c dc,h,v,p: 62% 15% 16% 7%
[libx264 # 0x104801200] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 # 0x104801200] ref P L0: 87.6% 7.8% 4.0% 0.6% 0.0%
[libx264 # 0x104801200] ref B L0: 50.0% 49.6% 0.4%
[libx264 # 0x104801200] ref B L1: 91.3% 8.7%
[libx264 # 0x104801200] kb/s:26.05
[aac # 0x104802a00] Qavg: 632.499
fred-macbookpro:~ srederiquefantune$
When I add a watermark image with a landscape orientation to a video that has a portrait orientation the video automatically rotates to landscape. How do I prevent this? Also, the audio file isn't being merged into the output. How can I include the audio.mp3 to be the sole audio track?
ffmpeg -i 1425500438.MOV -i hashtag.png -itsoffset 00:00:07 -i audio.mp3 -filter_complex "[0:v]curves=preset=vintage[a];[a][1:v]overlay=10:10[out]" -vcodec libx264 -pix_fmt yuv420p -ss 0:0:07 -t 14 -map "[out]" -y processed.mov
EDIT****
ffmpeg version 2.1.4 Copyright (c) 2000-2014 the FFmpeg developers
built on Mar 19 2014 12:48:02 with Apple LLVM version 5.1 (clang-503.0.38) (based on LLVM 3.4svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.1.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1/include/openjpeg-1.5 '
libavutil 52. 48.101 / 52. 48.101
libavcodec 55. 39.101 / 55. 39.101
libavformat 55. 19.104 / 55. 19.104
libavdevice 55. 5.100 / 55. 5.100
libavfilter 3. 90.100 / 3. 90.100
libavresample 1. 1. 0 / 1. 1. 0
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1425500438.MOV':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
creation_time : 2015-03-04 20:20:14
encoder : 8.1.2
encoder-eng : 8.1.2
date : 2015-03-04T14:20:14-0600
date-eng : 2015-03-04T14:20:14-0600
model : iPhone 6
model-eng : iPhone 6
make : Apple
make-eng : Apple
Duration: 00:00:10.56, start: 0.000000, bitrate: 703 kb/s
Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 480x360, 696 kb/s, 30.02 fps, 30.08 tbr, 600 tbn, 1200 tbc (default)
Metadata:
rotate : 90
creation_time : 2015-03-04 20:20:14
handler_name : Core Media Data Handler
Input #1, image2, from 'hashtag.png':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Stream #1:0: Video: png, rgba, 131x29, 25 tbr, 25 tbn, 25 tbc
Input #2, mp3, from 'audio.mp3':
Metadata:
encoder : Lavf55.19.104
Duration: 00:00:10.44, start: 0.000000, bitrate: 128 kb/s
Stream #2:0: Audio: mp3, 16000 Hz, stereo, s16p, 128 kb/s
[libx264 # 0x7f9894017200] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX AVX2 FMA3 BMI1 BMI2
[libx264 # 0x7f9894017200] profile High, level 3.0
[libx264 # 0x7f9894017200] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mov, to 'processed.mov':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
make-eng : Apple
make : Apple
encoder-eng : 8.1.2
date : 2015-03-04T14:20:14-0600
date-eng : 2015-03-04T14:20:14-0600
model : iPhone 6
model-eng : iPhone 6
encoder : Lavf55.19.104
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 480x360, q=-1--1, 11552 tbn, 30.08 tbc (default)
Stream mapping:
Stream #0:0 (h264) -> curves
Stream #1:0 (png) -> overlay:overlay
overlay -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
frame= 422 fps=413 q=-1.0 Lsize= 361kB time=00:00:13.96 bitrate= 211.9kbits/s dup=303 drop=0
video:356kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.574185%
[libx264 # 0x7f9894017200] frame I:2 Avg QP:20.09 size: 19764
[libx264 # 0x7f9894017200] frame P:134 Avg QP:22.29 size: 2248
[libx264 # 0x7f9894017200] frame B:286 Avg QP:28.02 size: 79
[libx264 # 0x7f9894017200] consecutive B-frames: 9.2% 0.0% 3.6% 87.2%
[libx264 # 0x7f9894017200] mb I I16..4: 6.6% 45.0% 48.4%
[libx264 # 0x7f9894017200] mb P I16..4: 1.8% 2.4% 0.7% P16..4: 40.8% 13.6% 4.5% 0.0% 0.0% skip:36.1%
[libx264 # 0x7f9894017200] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 10.9% 0.1% 0.0% direct: 0.0% skip:89.0% L0:56.5% L1:42.3% BI: 1.2%
[libx264 # 0x7f9894017200] 8x8 transform intra:47.6% inter:61.5%
[libx264 # 0x7f9894017200] coded y,uvDC,uvAC intra: 51.3% 81.4% 36.7% inter: 5.6% 8.5% 0.5%
[libx264 # 0x7f9894017200] i16 v,h,dc,p: 21% 27% 12% 40%
[libx264 # 0x7f9894017200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 27% 19% 5% 4% 4% 7% 5% 6%
[libx264 # 0x7f9894017200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 22% 12% 4% 5% 5% 6% 4% 6%
[libx264 # 0x7f9894017200] i8c dc,h,v,p: 40% 28% 22% 10%
[libx264 # 0x7f9894017200] Weighted P-Frames: Y:16.4% UV:10.4%
[libx264 # 0x7f9894017200] ref P L0: 73.7% 12.2% 11.7% 2.3% 0.2%
[libx264 # 0x7f9894017200] ref B L0: 93.5% 5.8% 0.7%
[libx264 # 0x7f9894017200] ref B L1: 97.2% 2.8%
[libx264 # 0x7f9894017200] kb/s:207.25
Problem 1
When I add a watermark image with a landscape orientation to a video that has a portrait orientation the video automatically rotates to landscape. How do I prevent this?
The problem is the rotate metadata in the video stream. In your case this is set by the iPhone. The video is not actually recorded "vertically", but the player is supposed to use the rotation metadata to rotate it upon playback. Unfortunately, some players pay attention to this metadata, such as QuickTime, while others ignore it, such as VLC. Due to the inconsistency of players and because ffmpeg preserves the stream metadata this can cause issues.
What to do:
Since you're filtering anyway you can use one of many rotation capable filters to reposition the video.
Strip out the video stream rotation metadata.
Problem 2
The audio file isn't being merged into the output. How can I include the audio.mp3 to be the sole audio track?
Since you used the -map option the default stream selection behavior was disabled. It's generally a better idea to explicitly define the inputs/streams you want, so just add another -map to map the audio.
Example
ffmpeg -i video.mov -i logo.png -i audio.mp3 -filter_complex \
"[0:v]transpose=2,curves=preset=vintage[bg]; \
[bg][1:v]overlay=10:10,format=yuv420p[vid]" \
-c:v libx264 -metadata:s:v rotate="" -map "[vid]" -map 2:a -c:a copy \
-shortest output.mov
Also see:
FFmpeg Documentation: -map option
FFmpeg Wiki: H.264 Encoding Guide
Stack Overflow: FFmpeg mux video and audio from another input - mapping
I am trying to create a video out of one image and copy audio on top. Following this (last section), I tried:
$ ffmpeg -loop 1 -i img.jpg -i audio.mp3 -c:v libx264 -c:a copy -shortest h264.mp4
ffmpeg version 2.5.2 Copyright (c) 2000-2014 the FFmpeg developers
built on Feb 23 2015 10:29:52 with Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.5.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libxvid --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1_1/include/openjpeg-1.5 ' --enable-nonfree --enable-vda
libavutil 54. 15.100 / 54. 15.100
libavcodec 56. 13.100 / 56. 13.100
libavformat 56. 15.102 / 56. 15.102
libavdevice 56. 3.100 / 56. 3.100
libavfilter 5. 2.103 / 5. 2.103
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, image2, from 'img.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 123986 kb/s
Stream #0:0: Video: mjpeg, yuvj440p(pc, bt470bg/unknown/unknown), 1440x900 [SAR 72:72 DAR 8:5], 25 fps, 25 tbr, 25 tbn, 25 tbc
[mp3 # 0x7f94d2034600] Estimating duration from bitrate, this may be inaccurate
Input #1, mp3, from 'audio.mp3':
Metadata:
genre : Other
Duration: 00:00:03.25, start: 0.000000, bitrate: 130 kb/s
Stream #1:0: Audio: mp3, 44100 Hz, mono, s16p, 128 kb/s
[swscaler # 0x7f94d2800000] deprecated pixel format used, make sure you did set range correctly
No pixel format specified, yuvj444p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 # 0x7f94d281b200] using SAR=1/1
[libx264 # 0x7f94d281b200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
[libx264 # 0x7f94d281b200] profile High 4:4:4 Predictive, level 4.0, 4:4:4 8-bit
[libx264 # 0x7f94d281b200] 264 - core 142 r2455 021c0dc - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'h264.mp4':
Metadata:
encoder : Lavf56.15.102
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuvj444p(pc), 1440x900 [SAR 1:1 DAR 8:5], q=-1--1, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc56.13.100 libx264
Stream #0:1: Audio: mp3 (i[0][0][0] / 0x0069), 44100 Hz, mono, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Stream #1:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 64 fps= 30 q=28.0 size= 332kB time=00:00:00.48 bitrate=5670.9kbits/frame= 80 fps= 30 q=28.0 size= 344kB time=00:00:01.12 bitrate=2514.2kbits/frame= 96 fps= 30 q=28.0 size= 356kB time=00:00:01.76 bitrate=1655.1kbits/frame= 112 fps= 30 q=28.0 size= 367kB time=00:00:02.40 bitrate=1252.1kbits/frame= 129 fps= 31 q=28.0 size= 378kB time=00:00:03.08 bitrate=1006.5kbits/frame= 134 fps= 26 q=-1.0 Lsize= 386kB time=00:00:03.28 bitrate= 963.5kbits/s
video:331kB audio:51kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.120110%
[libx264 # 0x7f94d281b200] frame I:1 Avg QP:19.84 size:329471
[libx264 # 0x7f94d281b200] frame P:34 Avg QP:16.64 size: 189
[libx264 # 0x7f94d281b200] frame B:99 Avg QP:25.33 size: 48
[libx264 # 0x7f94d281b200] consecutive B-frames: 1.5% 0.0% 0.0% 98.5%
[libx264 # 0x7f94d281b200] mb I I16..4: 2.8% 70.0% 27.3%
[libx264 # 0x7f94d281b200] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 1.2% 0.0% 0.0% 0.0% 0.0% skip:98.8%
[libx264 # 0x7f94d281b200] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.0% 0.0% 0.0% direct: 0.0% skip:100.0% L0: 1.6% L1:98.4% BI: 0.0%
[libx264 # 0x7f94d281b200] 8x8 transform intra:70.0% inter:95.0%
[libx264 # 0x7f94d281b200] coded y,u,v intra: 96.4% 73.8% 72.9% inter: 0.0% 0.0% 0.0%
[libx264 # 0x7f94d281b200] i16 v,h,dc,p: 37% 4% 1% 58%
[libx264 # 0x7f94d281b200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 27% 8% 3% 5% 5% 8% 4% 9%
[libx264 # 0x7f94d281b200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 38% 18% 5% 3% 7% 7% 10% 5% 7%
[libx264 # 0x7f94d281b200] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 # 0x7f94d281b200] ref P L0: 20.0% 0.4% 42.4% 37.2%
[libx264 # 0x7f94d281b200] ref B L0: 0.0% 100.0%
[libx264 # 0x7f94d281b200] ref B L1: 90.9% 9.1%
[libx264 # 0x7f94d281b200] kb/s:508.50
But I get a video with no audio in QuickTime. I think its a problem of the output container (mp4) not supporting mp3. What output container might be best? Due to quality loss, I am reluctant to convert the mp3 to another format. If my audio is mp3, what might I change about this ffmpeg command?
The final destination is YouTube.
Because YouTube is the final location you can ignore the other players:
Most non-FFmpeg based players can't decode yuvj444p. If you want the video in these other players to work, then add -pix_fmt yuv420p as an output option as mentioned in the console output.
Some players have trouble decoding MP3 in MP4 such as QuickTime and WMP with certain audio rates. If you need it to work in these players you'll need to re-encode to AAC audio by changing -c:a copy to -c:a aac.
Since the input is a single image you can reduce your frame rate for a much faster encoding by adding -framerate 1 as an input option. Again, some players may not be able to decode this frame rate.
YouTube can handle these potential issues, so feel free to upload it. See FFmpeg Wiki: YouTube for more info.
I am trying to use phantomjs with ffmpeg to complie videos from screenshots of a webpage as described here:
https://groups.google.com/forum/#!msg/phantomjs/wluVGGjhL90/oGBXqh7QP44J
I have the following test.js file:
var page = require('webpage').create();
page.clipRect = { top: 0, left: 0, width: 900, height: 800};
page.viewportSize = { width: 900, height: 800};
var url = 'http://dl.dropbox.com/u/621993/voronoi/voronoi.html';
var frames = 100;
page.open(url, function(){
setInterval(function(){
page.render('/dev/stdout');
if( frames == 0 ){
phantom.exit();
}
frames--;
}, 100);
});
Then I run this command, taken from the link above:
$ phantomjs test.js |ffmpeg -c:v png -f image2pipe -r 10 -sameq -i - -y test.mp4
Including -sameq causes an error in ffmpeg, so I took it out and ran:
$ phantomjs test.js |ffmpeg -c:v png -f image2pipe -r 10 -i - -y test.mp4
I get the following output from ffmpeg:
ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
built on Jul 22 2013 09:14:18 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
configuration: --prefix=/Volumes/Ramdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --arch=x86_64 --enable-runtime-cpudetect
libavutil 52. 38.100 / 52. 38.100
libavcodec 55. 18.102 / 55. 18.102
libavformat 55. 12.100 / 55. 12.100
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 79.101 / 3. 79.101
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100
Input #0, image2pipe, from 'pipe:':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: png, rgba, 900x800 [SAR 2835:2835 DAR 9:8], 10 fps, 10 tbr, 10 tbn, 10 tbc
No pixel format specified, yuv444p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 # 0x7f8973803800] using SAR=1/1
[libx264 # 0x7f8973803800] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 # 0x7f8973803800] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
[libx264 # 0x7f8973803800] 264 - core 133 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=10 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'test.mp4':
Metadata:
encoder : Lavf55.12.100
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 900x800 [SAR 1:1 DAR 9:8], q=-1--1, 10240 tbn, 10 tbc
Stream mapping:
Stream #0:0 -> #0:0 (png -> libx264)
pipe:: Input/output error0 size= 65kB time=00:00:04.10 bitrate= 130.5kbits/s
frame= 93 fps= 15 q=-1.0 Lsize= 71kB time=00:00:09.10 bitrate= 63.8kbits/s
video:69kB audio:0kB subtitle:0 global headers:0kB muxing overhead 2.696543%
[libx264 # 0x7f8973803800] frame I:1 Avg QP:15.17 size: 50212
[libx264 # 0x7f8973803800] frame P:24 Avg QP: 8.91 size: 575
[libx264 # 0x7f8973803800] frame B:68 Avg QP: 9.69 size: 87
[libx264 # 0x7f8973803800] consecutive B-frames: 2.2% 0.0% 3.2% 94.6%
[libx264 # 0x7f8973803800] mb I I16..4: 64.2% 19.6% 16.1%
[libx264 # 0x7f8973803800] mb P I16..4: 2.8% 0.2% 0.1% P16..4: 0.5% 0.0% 0.0% 0.0% 0.0% skip:96.3%
[libx264 # 0x7f8973803800] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 3.1% 0.0% 0.0% direct: 0.0% skip:96.9% L0:76.4% L1:23.6% BI: 0.0%
[libx264 # 0x7f8973803800] 8x8 transform intra:13.9% inter:54.0%
[libx264 # 0x7f8973803800] coded y,u,v intra: 7.4% 4.8% 5.2% inter: 0.1% 0.1% 0.1%
[libx264 # 0x7f8973803800] i16 v,h,dc,p: 68% 31% 2% 0%
[libx264 # 0x7f8973803800] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 48% 20% 32% 0% 0% 0% 0% 0% 0%
[libx264 # 0x7f8973803800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 31% 20% 3% 3% 3% 5% 3% 4%
[libx264 # 0x7f8973803800] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 # 0x7f8973803800] ref P L0: 91.9% 0.0% 7.4% 0.7%
[libx264 # 0x7f8973803800] ref B L0: 20.5% 79.5%
[libx264 # 0x7f8973803800] ref B L1: 99.9% 0.1%
[libx264 # 0x7f8973803800] kb/s:60.16
The output test.mp4 file is a blank 10 second video - just a black screen. From what i can tell, I am getting a pipe:: Input/output error from ffmpeg.
I am pretty new to ffmpeg and I have tried changing some parameters and video codecs in the ffmpeg call, but have not found a solution yet. Can anyone advise?
I got this to work by adding -pix_fmt yuv420p to the command:
$ phantomjs test.js | ffmpeg -y -c:v png -f image2pipe -r 10 -i - -c:v libx264 -pix_fmt yuv420p -movflags +faststart test.mp4
Otherwise the output will use a chroma subsampling type (yuv444p in this case) that is not compatible with "dumb" players like QuickTime which require yuv420p – YUV color space with 4:2:0 chroma subsampling.
Adding -movflags +faststart as an input option will allow the video to begin playing by the viewer before it is completely downloaded. Useful if the video will be viewed in a browser.
Default encoding settings for libx264 will be used in this example resulting in H.264 video. See the FFmpeg and x264 Encoding Guide for more information on controlling quality and encoding speed.
I'm using user1690179's command but the mp4 is corrupted.
I'm able to fix it with
./ffmpeg -i test.mp4 -c copy repaired.mp4
Maybe that's because of the pipe:: Input/output error?
Maybe phantomjs doesn't end gracefully?
i don't know much about phantomjs but if you plan on using regular node.js with ffmpeg and request/spawn i have done something similar. It incorporates the use of request to pipe in images for the snapshot url and ffmpeg through spawn for the mjpeg
ffmpeg jpeg stream to webm only creates a file .webm with 1 frame (snapshot) or empty .webm file (mjpeg)
I was having trouble with making webm files from jpeg snapshot and mjpeg stream.. but the answer provided took care of it.
I hope someone finds it useful as this question is pretty old... and perhaps this method is better at serving the task.