[FFmpeg-user] capture mpeg2 from dvdlast
Javier Fuentes
jfuentes at flumotion.com
Fri Nov 23 17:02:18 EET 2018
Hello everybody
Sorry for my delay in reply in my response.
1)I have attached a link for a small section of the flow that I capture
https://drive.google.com/file/d/1c7IwXuu9GLMDo70A8gRyy1pUKntgxrM0/view?usp=sharing
2) I catpure multiple dvb-t or dvb-s signal with dvblast and his outgoing
are rtp, then I use the rpt to transcoding the signal with ffmpeg mp2g to
h264 and audio to aac. and republish it to my server.
Thanks a lot for your help.
Best regards
On Fri, Nov 23, 2018 at 3:43 PM Javier Fuentes <jfuentes at flumotion.com>
wrote:
> Hello everybody
>
> Sorry for my delay in reply in my response.
> 1)I have attached a small section of the flow that I capture
> 2) I catpure multiple dvb-t or dvb-s signal with dvblast and his outgoing
> are rtp, then I use the rpt to transcoding the signal with ffmpeg mp2g to
> h264 and audio to aac. and republish it to my server.
>
> Thanks a lot for your help.
> Best regards
>
> On Thu, Nov 22, 2018 at 5:49 PM Carl Eugen Hoyos <ceffmpeg at gmail.com>
> wrote:
>
>> 2018-11-22 17:36 GMT+01:00, Javier Fuentes <jfuentes at flumotion.com>:
>> > Hello Everybody
>> >
>> >
>> > I have this ffmpeg command
>> > ffmpeg -i rtp://127.0.0.1:6000 -map 0:4 -map 0:2 -vcodec libx264 -b:v
>> 1500k
>> > -s 720x576 -acodec aac -ab 128k -ac 2 -ar 48000 -r 25 -f flv
>> > rtmp://encoder....
>> >
>> > I have a lot of errors when i start capture a mpeg2 signal, and after a
>> > while the capture starts to fail
>> >
>> > Thanks a lot for your help
>> > Best regards
>> >
>> > My log
>> > ffmpeg version git-2018-11-12-ae43235 Copyright (c) 2000-2018 the FFmpeg
>> > developers
>> > built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-28)
>> > configuration: --prefix=/root/ffmpeg_build
>> > --extra-cflags=-I/root/ffmpeg_build/include
>> > --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin
>> > --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac
>> > --enable-libmp3lame --enable-libvpx --enable-libx264
>> --enable-libfreetype
>>
>> > --enable-libspeex --enable-libtheora --enable-libass --enable-avfilter
>> > --enable-pthreads --enable-decoder=mpeg4 --enable-decoder=mpegvideo
>> > --enable-parser=mpeg4video --enable-parser=mpegvideo
>> > --enable-muxer=mpeg2video --enable-muxer=mp4 --enable-muxer=h264
>> > --enable-demuxer=h264 --enable-parser=ac3 --enable-parser=h261
>> > --enable-parser=vc1 --enable-decoder=aac --enable-parser=aac
>> > --enable-demuxer=aac --enable-demuxer=vc1 --enable-decoder=h264
>> > --enable-parser=h264 --enable-demuxer=h264 --enable-muxer=h264
>>
>> While this is probably unrelated, these unused options make
>> the issue needlessly harder to debug...
>>
>> > libavutil 56. 23.101 / 56. 23.101
>> > libavcodec 58. 39.100 / 58. 39.100
>> > libavformat 58. 22.100 / 58. 22.100
>> > libavdevice 58. 6.100 / 58. 6.100
>> > libavfilter 7. 43.100 / 7. 43.100
>> > libswscale 5. 4.100 / 5. 4.100
>> > libswresample 3. 4.100 / 3. 4.100
>> > libpostproc 55. 4.100 / 55. 4.100
>> > [mpeg2video @ 0x2befc40] Invalid frame dimensions 0x0.
>> > Last message repeated 13 times
>> > Input #0, rtp, from 'rtp://127.0.0.1:6000':
>> > Duration: N/A, start: 51639.509822, bitrate: N/A
>> > Program 493
>> > Metadata:
>> > service_name : Clan
>> > service_provider: RTVE
>> > Stream #0:4: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
>> > yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr,
>> 90k
>> > tbn, 50 tbc
>> > Stream #0:0(spa,spa,qaa): Subtitle: dvb_teletext ([6][0][0][0] /
>> 0x0006)
>> > Stream #0:1(spa): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz,
>> stereo,
>> > s16p, 128 kb/s
>> > Stream #0:3(qaa): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz,
>> stereo,
>> > s16p, 128 kb/s
>> > Stream #0:2(spa): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz,
>> mono,
>> > s16p, 96 kb/s (visual impaired) (descriptions)
>> > Stream #0:5(spa): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
>> > Stream #0:6(qaa): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
>> > Stream mapping:
>> > Stream #0:4 -> #0:0 (mpeg2video (native) -> h264 (libx264))
>> > Stream #0:2 -> #0:1 (mp2 (native) -> aac (native))
>> > Press [q] to stop, [?] for help
>> > [libx264 @ 0x2c50340] using SAR=64/45
>> > [libx264 @ 0x2c50340] using cpu capabilities: none!
>> > [libx264 @ 0x2c50340] profile High, level 3.0, 4:2:0, 8-bit
>> > [libx264 @ 0x2c50340] 264 - core 157 - H.264/MPEG-4 AVC codec - Copyleft
>> > 2003-2018 - 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=abr mbtree=1 bitrate=1500 ratetol=1.0
>> > qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
>> > Output #0, flv, to 'rtmp://
>> encoder-cg10.bt.bcn.flumotion.net:1935/yuvod/clan
>> > ':
>> > Metadata:
>> > encoder : Lavf58.22.100
>> > Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p,
>> > 720x576 [SAR 64:45 DAR 16:9], q=-1--1, 1500 kb/s, 25 fps, 1k tbn, 25 tbc
>> > Metadata:
>> > encoder : Lavc58.39.100 libx264
>> > Side data:
>> > cpb: bitrate max/min/avg: 0/0/1500000 buffer size: 0 vbv_delay: -1
>> > Stream #0:1(spa): Audio: aac (LC) ([10][0][0][0] / 0x000A), 48000
>> Hz,
>> > stereo, fltp, 128 kb/s (visual impaired) (descriptions)
>> > Metadata:
>> > encoder : Lavc58.39.100 aac
>> > [rtp @ 0x2b9ab40] max delay reached. need to consume packet
>> > bitrate=1458.5kbits/s speed=1.02x
>> > [rtp @ 0x2b9ab40] RTP: missed 13 packets
>>
>> Can you try to record the network stream to allow us to reproduce?
>> Why is rtp input from the local system necessary?
>>
>> Carl Eugen
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>
>
>
> --
>
>
> Javier Fuentes
> Flumotion Services S.A.
>
> Avda. Diagonal 579-587 7º
> 08021 Barcelona - Spainwww.flumotion.com
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--
Javier Fuentes
Flumotion Services S.A.
Avda. Diagonal 579-587 7º
08021 Barcelona - Spainwww.flumotion.com
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