Dear all,
My video which has KLV metadata on stream 1, is not timestamped properly, when
streaming udp. ¿Is there anyway to recreate the timestamps? I am doing
something wrong when streaming by udp.
The command employed is the following:
>>ffmpeg -re -i klv.mpeg -map 0 -codec copy -f mpegts
>>udp://127.0.0.1:9000?pkt_size=1316
ffmpeg version N-101612-gda12d600ea Copyright (c) 2000-2021 the FFmpeg
developers
built with gcc 9.3-win32 (GCC) 20200320
configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static
--pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64
--target-os=mingw32 --enable-gpl --enable-version3 --disable-debug
--enable-shared --disable-static --disable-w32threads --enable-pthreads
--enable-iconv --enable-zlib --enable-libxml2 --enable-libfreetype
--enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig
--enable-opencl --enable-libvmaf --enable-vulkan --enable-libvorbis
--enable-amf --enable-libaom --enable-avisynth --enable-libdav1d
--enable-libdavs2 --enable-ffnvcodec --enable-cuda-llvm --enable-libglslang
--enable-libgme --enable-libass --enable-libbluray --enable-libmp3lame
--enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp
--enable-lv2 --enable-libmfx --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e
--enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr
--enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d
--enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxavs2
--enable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC
--extra-cxxflags= --extra-ldflags=-pthread --extra-libs=-lgomp
libavutil 56. 68.100 / 56. 68.100
libavcodec 58.133.100 / 58.133.100
libavformat 58. 74.100 / 58. 74.100
libavdevice 58. 12.100 / 58. 12.100
libavfilter 7.109.100 / 7.109.100
libswscale 5. 8.100 / 5. 8.100
libswresample 3. 8.100 / 3. 8.100
libpostproc 55. 8.100 / 55. 8.100
[mpegts @ 000002c852e57000] start time for stream 1 is not set in
estimate_timings_from_pts
Input #0, mpegts, from 'klv.mpeg':
Duration: 00:01:30.80, start: 0.500000, bitrate: 1347 kb/s
Program 1
Stream #0:0[0x3e8]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p(tv, bt470bg, progressive), 640x480 [SAR 1:1 DAR 4:3], 30 fps, 30 tbr,
90k tbn, 60 tbc
Side data:
cpb: bitrate max/min/avg: 1000000/0/0 buffer size: 1835008 vbv_delay: N/A
Stream #0:1[0x90]: Data: klv (KLVA / 0x41564C4B)
Output #0, mpegts, to 'udp://127.0.0.1:9000?pkt_size=1316':
Metadata:
encoder : Lavf58.74.100
Stream #0:0: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv,
bt470bg, progressive), 640x480 [SAR 1:1 DAR 4:3], q=2-31, 30 fps, 30 tbr, 90k
tbn, 90k tbc
Side data:
cpb: bitrate max/min/avg: 1000000/0/0 buffer size: 1835008 vbv_delay: N/A
Stream #0:1: Data: klv (KLVA / 0x41564C4B)
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mpegts @ 000002c854add100] Timestamps are unset in a packet for stream 1. This
is deprecated and will stop working in the future. Fix your code to set the
timestamps properly
frame= 31 fps= 30 q=-1.0 size= 66kB time=00:00:01.03 bitrate=
524.0kbits/s speed= 1x
P Please consider the environment before printing this e-mail.
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