[FFmpeg-user] Mpg
Juan O Batista
orestesb at comcast.net
Fri Sep 16 01:00:20 EEST 2016
How can I know if my video has closed captioning using ffmpeg or ffprobe?
Thank you
----- Original Message -----
From: "Marcelo Boufleur" <mboufleur at gmail.com>
To: "FFmpeg user questions" <ffmpeg-user at ffmpeg.org>
Sent: Wednesday, September 14, 2016 6:24:52 PM
Subject: Re: [FFmpeg-user] Mpg
>
> But i got error
> bad option 'ac53' '1'
>
Ahh, nothing like actually trying the command. The "a53cc" option has to be
used outside the internal parameters of x264.
ffmpeg -i INPUT.mpg -c:v libx264 -x264opts keyint=123:min-keyint=20 -a53cc
1 -an -f mpegts OUTPUT.ts
Here is a (working and tested) command line version, and the full command
output:
C:\>ffmpeg -i cea708_dtv.mpg -c:v libx264 -x264opts keyint=60:min-keyint=30
-a53cc 1 -an -f mpegts OUTPUT.TS
ffmpeg version N-80980-g7af44ce Copyright (c) 2000-2016 the FFmpeg
developers
built with gcc 5.4.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-dxva2 --enable-libmfx
--enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128
--enable-fontconfig --enable-fre
i0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libbs2b --enable-libc
aca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc
--enable-libmodplug --enab
le-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenjpeg --enable-li
bopus --enable-librtmp --enable-libschroedinger --enable-libsnappy
--enable-libsoxr --enable-libspee
x --enable-libtheora --enable-libtwolame --enable-libvidstab
--enable-libvo-amrwbenc --enable-libvor
bis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
--enable-libx265 --enable-
libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink
--enable-zlib
libavutil 55. 28.100 / 55. 28.100
libavcodec 57. 50.100 / 57. 50.100
libavformat 57. 41.100 / 57. 41.100
libavdevice 57. 0.102 / 57. 0.102
libavfilter 6. 47.100 / 6. 47.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 1.100 / 2. 1.100
libpostproc 54. 0.100 / 54. 0.100
Input #0, mpegts, from 'cea708_dtv.mpg':
Duration: 00:00:05.01, start: 0.300911, bitrate: 6482 kb/s
Program 1
Stream #0:0[0x1e1]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p(tv, smpte170m), 720x480 [SAR 8:9 DAR 4:3], Closed Captions, 6000
kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
Stream #0:1[0x1e2]: Audio: mp2 ([3][0][0][0] / 0x0003), 44100 Hz,
stereo, s16p, 256 kb/s
[libx264 @ 00000000023c42a0] using SAR=8/9
[libx264 @ 00000000023c42a0] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX
[libx264 @ 00000000023c42a0] profile High, level 3.0
[mpegts @ 00000000024c64c0] Using AVStream.codec to pass codec parameters
to muxers is deprecated, use AVStream.codecpar instead.
Output #0, mpegts, to 'OUTPUT.TS':
Metadata:
encoder : Lavf57.41.100
Stream #0:0: Video: h264 (libx264), yuv420p, 720x480 [SAR 8:9 DAR 4:3],
q=-1--1, 29.97 fps, 90ktbn, 29.97 tbc
Metadata:
encoder : Lavc57.50.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream mapping:
Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 150 fps= 25 q=-1.0 Lsize= 4690kB time=00:00:04.90
bitrate=7833.2kbits/s speed=0.804x
video:4333kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 8.248154%
[libx264 @ 00000000023c42a0] frame I:3 Avg QP:25.11 size: 57332
[libx264 @ 00000000023c42a0] frame P:48 Avg QP:27.88 size: 45895
[libx264 @ 00000000023c42a0] frame B:99 Avg QP:31.95 size: 20826
[libx264 @ 00000000023c42a0] consecutive B-frames: 2.0% 5.3% 74.0% 18.7%
[libx264 @ 00000000023c42a0] mb I I16..4: 5.7% 92.6% 1.7%
[libx264 @ 00000000023c42a0] mb P I16..4: 1.7% 25.7% 2.0% P16..4: 22.2%
26.0% 16.3% 0.0% 0.0% skip: 6.0%
[libx264 @ 00000000023c42a0] mb B I16..4: 0.2% 3.3% 0.0% B16..8: 41.2%
16.8% 7.4% direct:17.1% skip:14.0% L0:31.4% L1:30.1% BI:38.6%
[libx264 @ 00000000023c42a0] 8x8 transform intra:89.0% inter:80.4%
[libx264 @ 00000000023c42a0] coded y,uvDC,uvAC intra: 84.5% 81.6% 37.1%
inter: 60.5% 46.5% 26.3%
[libx264 @ 00000000023c42a0] i16 v,h,dc,p: 16% 41% 33% 10%
[libx264 @ 00000000023c42a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 23% 38% 3%
2% 2% 4% 3% 8%
[libx264 @ 00000000023c42a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 25% 14% 5%
5% 3% 12% 4% 20%
[libx264 @ 00000000023c42a0] i8c dc,h,v,p: 51% 23% 20% 6%
[libx264 @ 00000000023c42a0] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 00000000023c42a0] ref P L0: 54.4% 11.4% 21.2% 13.0%
[libx264 @ 00000000023c42a0] ref B L0: 80.8% 16.4% 2.8%
[libx264 @ 00000000023c42a0] ref B L1: 99.1% 0.9%
[libx264 @ 00000000023c42a0] kb/s:7091.63
And here is the ffmpeg command informing about the resulting file:
C:\>ffmpeg -i OUTPUT.TS
ffmpeg version N-80980-g7af44ce Copyright (c) 2000-2016 the FFmpeg
developers
built with gcc 5.4.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-dxva2 --enable-libmfx
--enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128
--enable-fontconfig --enable-fre
i0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libbs2b --enable-libc
aca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc
--enable-libmodplug --enab
le-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenjpeg --enable-li
bopus --enable-librtmp --enable-libschroedinger --enable-libsnappy
--enable-libsoxr --enable-libspee
x --enable-libtheora --enable-libtwolame --enable-libvidstab
--enable-libvo-amrwbenc --enable-libvor
bis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
--enable-libx265 --enable-
libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink
--enable-zlib
libavutil 55. 28.100 / 55. 28.100
libavcodec 57. 50.100 / 57. 50.100
libavformat 57. 41.100 / 57. 41.100
libavdevice 57. 0.102 / 57. 0.102
libavfilter 6. 47.100 / 6. 47.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 1.100 / 2. 1.100
libpostproc 54. 0.100 / 54. 0.100
Input #0, mpegts, from 'OUTPUT.TS':
Duration: 00:00:05.01, start: 1.466733, bitrate: 7676 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B),
yuv420p, 720x480 [SAR 8:9 DAR 4:3], Closed Captions, 29.97 fps, 29.97 tbr,
90k tbn, 59.94 tbc
I'm attaching a report from Media info from the input and output vídeos,
just to compare how the Closed Caption is recognized:
General
ID : 1 (0x1)
Complete name : C:\cea708_dtv.mpg
Format : MPEG-TS
File size : 3.87 MiB
Duration : 4s 979ms
Overall bit rate mode : Constant
Overall bit rate : 6 500 Kbps
Video
ID : 481 (0x1E1)
Menu ID : 1 (0x1)
Format : MPEG Video
Format version : Version 2
Format profile : Main at Main
Format settings, BVOP : Yes
Format settings, Matrix : Default
Format settings, GOP : M=3, N=15
Codec ID : 2
Duration : 5s 5ms
Bit rate : 5 921 Kbps
Maximum bit rate : 6 000 Kbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 29.970 (30000/1001) fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.572
Time code of first frame : 00:00:00:01
Time code source : Group of pictures header
GOP, Open/Closed : Open
GOP, Open/Closed of first frame : Closed
Stream size : 3.53 MiB (91%)
Color primaries : BT.601 NTSC
Transfer characteristics : BT.601
Matrix coefficients : BT.601
Audio
ID : 482 (0x1E2)
Menu ID : 1 (0x1)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Codec ID : 3
Duration : 496ms
Bit rate mode : Constant
Bit rate : 256 Kbps
Channel(s) : 2 channels
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 15.5 KiB (0%)
Text
ID : 481 (0x1E1)-1
Menu ID : 1 (0x1)
Format : EIA-608
Muxing mode : A/53 / DTVCC Transport
Muxing mode, more info : Muxed in Video #1
Duration : 5s 5ms
Bit rate mode : Constant
Stream size : 0.00 Byte (0%)
And here is the a report from OUTPUT.ts:
General
ID : 1 (0x1)
Complete name : C:\OUTPUT.TS
Format : MPEG-TS
File size : 4.58 MiB
Duration : 4s 938ms
Overall bit rate mode : Variable
Overall bit rate : 7 718 Kbps
Video
ID : 256 (0x100)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High at L3
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : 27
Duration : 5s 5ms
Bit rate : 7 337 Kbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate mode : Variable
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Stream size : 4.38 MiB (96%)
Writing library : x264 core 148 r2705 3f5ed56
Encoding settings : 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=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=60 /
keyint_min=30 / 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
Text
ID : 256 (0x100)-1
Menu ID : 1 (0x1)
Format : EIA-608
Muxing mode : SCTE 128 / DTVCC Transport
Muxing mode, more info : Muxed in Video #1
Duration : 5s 5ms
Bit rate mode : Constant
Stream size : 0.00 Byte (0%)
Menu
ID : 4096 (0x1000)
Menu ID : 1 (0x1)
Duration : 4s 938ms
List : 256 (0x100) (AVC)
Service name : Service01
Service provider : FFmpeg
Service type : digital television
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