first frame is no keyframe, ffmpeg, fms

[Gregory1234]

Hi all,

I am using ffmpeg version 0.11.1 on my mac.  Basically I want to be able to
take XD Cam Ex.MOV's recorded at 18mbps transcode them with ffmpeg to
h.264.mp4's to play on an an fms server.  but whenever I do any of this
transcoding with ffmpeg, I get the warning "[mpeg2video @ 0x1a2e3360]
warning: first frame is no keyframe" and the audio is 6 frames or so early
because the fms server won't start playing the video until it sees a
keyframe.

I've tried forcing a keyframe on the first frame like this:

ffmpeg -i input.mov -force_key_frames 1,2,3,4,5 output.mp4 but it doesn't
seem to have any effect.

I know that -av seek frame and -ss command might be helpful but I don't
know how to get them to create a file that starts with a keyframe.  Can you
help me?

Thanks very much,
Greg Aimo
Distance Education Production Specialist
Harvard University Extension School
[hidden email]
617-872-5362






  This version:

ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
  built on Jul 30 2012 18:48:45 with gcc 4.1.2 20080704 (Red Hat 4.1.2-52)
  configuration: --prefix=/usr/local --enable-gpl --enable-version3
--enable-nonfree --enable-libx264 --enable-libxvid --enable-shared
--enable-postproc --enable-swscale --enable-avfilter --enable-pthreads
--enable-yasm --enable-libfaac --enable-libmp3lame --enable-libvorbis
--enable-libvpx
  libavutil      51. 54.100 / 51. 54.100
  libavcodec     54. 23.100 / 54. 23.100
  libavformat    54.  6.100 / 54.  6.100
  libavdevice    54.  0.100 / 54.  0.100
  libavfilter     2. 77.100 /  2. 77.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100


I probed one of our input files:



Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '01087001.MOV':
  Metadata:
    major_brand     : qt
    minor_version   : 537331968
    compatible_brands: qt  CDes
    creation_time   : 2008-06-06 20:25:39
  Duration: 00:11:43.50, start: 0.000000, bitrate: 20349 kb/s
    Stream #0:0(eng): Video: mpeg2video (Main) (xdv1 / 0x31766478),
yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 18000 kb/s, 29.97 fps, 29.97 tbr,
2997 tbn, 59.94 tbc
    Metadata:
      creation_time   : 2008-06-06 20:25:39
    Stream #0:1(eng): Audio: pcm_s24be (lpcm / 0x6D63706C), 48000 Hz, 1
channels, s32, 1152 kb/s
    Metadata:
      creation_time   : 2008-06-06 20:25:39
    Stream #0:2(eng): Audio: pcm_s24be (lpcm / 0x6D63706C), 48000 Hz, 1
channels, s32, 1152 kb/s
    Metadata:
      creation_time   : 2008-06-06 20:25:39
    Stream #0:3(eng): Data: none (tmcd / 0x64636D74)
    Metadata:
      creation_time   : 2008-06-06 20:25:39
      timecode        : 00:00:07;02
Unsupported codec with id 0 for input stream 3





Greg Aimo
Distance Education Production Specialist
Harvard University Extension School
[hidden email]
617-872-5362
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[hidden email]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user

[Carl Eugen Hoyos]

Gregory Aimo <gregory.aimo <at> gmail.com> writes:

> Basically I want to be able to take XD Cam Ex.MOV's
> recorded at 18mbps transcode them with ffmpeg to
> h.264.mp4's to play on an an fms server.  but whenever
> I do any of this transcoding with ffmpeg, I get the
> warning "[mpeg2video @ 0x1a2e3360] warning: first frame
> is no keyframe"

Please provide the command line you use together with the
complete, uncut console output (not version information
separated from a part of the console output).

And please consider testing current git head if you are a user.

Carl Eugen

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ffmpeg-user mailing list
[hidden email]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user

[Gregory1234]

Sure:

gaimo@de-dev-trans22 ~]$ ffmpeg -i 01087001.MOV test.mp4
ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
  built on Jul 30 2012 18:48:45 with gcc 4.1.2 20080704 (Red Hat 4.1.2-52)
  configuration: --prefix=/usr/local --enable-gpl --enable-version3 --enable-nonfree --enable-libx264 --enable-libxvid --enable-shared --enable-postproc --enable-swscale --enable-avfilter --enable-pthreads --enable-yasm --enable-libfaac --enable-libmp3lame --enable-libvorbis --enable-libvpx
  libavutil      51. 54.100 / 51. 54.100
  libavcodec     54. 23.100 / 54. 23.100
  libavformat    54.  6.100 / 54.  6.100
  libavdevice    54.  0.100 / 54.  0.100
  libavfilter     2. 77.100 /  2. 77.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
Guessed Channel Layout for  Input Stream #0.1 : mono
Guessed Channel Layout for  Input Stream #0.2 : mono
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '01087001.MOV':
  Metadata:
    major_brand     : qt  
    minor_version   : 537331968
    compatible_brands: qt  CDes
    creation_time   : 2008-06-06 20:25:39
  Duration: 00:11:43.50, start: 0.000000, bitrate: 20349 kb/s
    Stream #0:0(eng): Video: mpeg2video (Main) (xdv1 / 0x31766478), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 18000 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 59.94 tbc
    Metadata:
      creation_time   : 2008-06-06 20:25:39
    Stream #0:1(eng): Audio: pcm_s24be (lpcm / 0x6D63706C), 48000 Hz, mono, s32, 1152 kb/s
    Metadata:
      creation_time   : 2008-06-06 20:25:39
    Stream #0:2(eng): Audio: pcm_s24be (lpcm / 0x6D63706C), 48000 Hz, mono, s32, 1152 kb/s
    Metadata:
      creation_time   : 2008-06-06 20:25:39
    Stream #0:3(eng): Data: none (tmcd / 0x64636D74)
    Metadata:
      creation_time   : 2008-06-06 20:25:39
      timecode        : 00:00:07;02
[buffer @ 0xad343a0] w:1280 h:720 pixfmt:yuv420p tb:1/2997 sar:1/1 sws_param:flags=2
[buffersink @ 0xad34da0] No opaque field provided
[aformat @ 0xad30f40] auto-inserting filter 'auto-inserted resampler 0' between the filter 'src' and the filter 'aformat'
[aresample @ 0xad71520] chl:mono fmt:s32 r:48000Hz -> chl:mono fmt:s16 r:48000Hz
[libx264 @ 0xad32ac0] using SAR=1/1
[libx264 @ 0xad32ac0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
[libx264 @ 0xad32ac0] profile High, level 3.1
[libx264 @ 0xad32ac0] 264 - core 122 - 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=3 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 'test.mp4':
  Metadata:
    major_brand     : qt  
    minor_version   : 537331968
    compatible_brands: qt  CDes
    creation_time   : 2008-06-06 20:25:39
    encoder         : Lavf54.6.100
    Stream #0:0(eng): Video: h264 (![0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 2997 tbn, 29.97 tbc
    Metadata:
      creation_time   : 2008-06-06 20:25:39
    Stream #0:1(eng): Audio: aac (@[0][0][0] / 0x0040), 48000 Hz, mono, s16, 128 kb/s
    Metadata:
      creation_time   : 2008-06-06 20:25:39
Stream mapping:
  Stream #0:0 -> #0:0 (mpeg2video -> libx264)
  Stream #0:1 -> #0:1 (pcm_s24be -> libfaac)
Press [q] to stop, [?] for help
[mpeg2video @ 0xad3c360] warning: first frame is no keyframe
frame=   23 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/sframe=   47 fps= 42 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/sframe=   53 fps= 31 q=29.0 size=      41kB time=00:00:00.13 bitrate=2514.0kbits/frame=   59 fps= 26 q=29.0 size=      61kB time=00:00:00.33 bitrate=1501.1kbits/frame=   69 fps= 24 q=29.0 size=     106kB time=00:00:00.66 bitrate=1296.1kbits/frame=   85 fps= 25 q=29.0 size=     162kB time=00:00:01.20 bitrframe=  122 fps= 28 q=29.0 sframframe=  889 fps= 25 q=29.0 size=    3018kB timefraframe= 2483 fps= 26 q=29.0 size=   10345kB time=00:frame=21084 fps= 22 q=-1.0 Lsize=   95642kB time=00:11:43.43 bitrate=1113.8kbits/s      869kB time=00:01:24.51 bitrate=1053.5kbits/s    3kbits/s    = 2524 fps= 26 q=29.0 size=   10575kB time=00:01:22video:87876kB audio:7101kB global headers:0kB muxing overhead 0.700076%
[libx264 @ 0xad32ac0] frame I:86    Avg QP:21.61  size: 36764
[libx264 @ 0xad32ac0] frame P:17284 Avg QP:24.22  size:  4686
[libx264 @ 0xad32ac0] frame B:3714  Avg QP:24.94  size:  1572
[libx264 @ 0xad32ac0] consecutive B-frames: 65.1% 33.9%  0.9%  0.1%
[libx264 @ 0xad32ac0] mb I  I16..4: 24.8% 60.9% 14.4%
[libx264 @ 0xad32ac0] mb P  I16..4:  1.0%  0.8%  0.4%  P16..4: 28.8%  2.6%  4.3%  0.0%  0.0%    skip:62.2%
[libx264 @ 0xad32ac0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 25.0%  0.5%  0.1%  direct: 0.2%  skip:74.0%  L0:30.8% L1:67.8% BI: 1.4%
[libx264 @ 0xad32ac0] 8x8 transform intra:42.1% inter:86.8%
[libx264 @ 0xad32ac0] coded y,uvDC,uvAC intra: 34.4% 50.6% 11.8% inter: 7.4% 12.8% 0.1%
[libx264 @ 0xad32ac0] i16 v,h,dc,p: 22% 25%  8% 45%
[libx264 @ 0xad32ac0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 15% 42%  4%  4%  4%  4%  4%  3%
[libx264 @ 0xad32ac0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 37% 15% 23%  4%  4%  6%  4%  6%  2%
[libx264 @ 0xad32ac0] i8c dc,h,v,p: 55% 22% 20%  3%
[libx264 @ 0xad32ac0] Weighted P-Frames: Y:12.5% UV:0.0%
[libx264 @ 0xad32ac0] ref P L0: 63.8% 19.1% 12.9%  4.0%  0.3%
[libx264 @ 0xad32ac0] ref B L0: 77.4% 22.3%  0.3%
[libx264 @ 0xad32ac0] ref B L1: 99.5%  0.5%
[libx264 @ 0xad32ac0] kb/s:1023.27