[FFmpeg-user] ffmpeg can generate raw stream but can't read it
Massimo Battistel
battistel at gmail.com
Sat Nov 9 17:49:52 CET 2013
Hi,
with the following command line:
ffmpeg -re -i anyvideo.ext -vcodec rawvideo -acodec pcm_s16le -f mpegts
udp://127.0.0.1:1400
I can stream raw video and audio with no errors/warnings on the ffmpeg
output.
The problem is that I haven't found a way to play/probe it.
If I try to read the stream with this command:
ffmpeg -i udp://127.0.0.1:1400 -analyzeduration 100000000 -probesize
100000000
it fails with the following output:
ffmpeg version N-57367-g2f31b73 Copyright (c) 2000-2013 the FFmpeg
developers
built on Oct 23 2013 20:22:19 with gcc 4.8.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc
--enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus
--enable-librtmp --enable-libschroedinger --enable-libsoxr
--enable-libspeex --enable-libtheora --enable-libtwolame
--enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264
--enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 47.101 / 52. 47.101
libavcodec 55. 38.101 / 55. 38.101
libavformat 55. 19.104 / 55. 19.104
libavdevice 55. 4.100 / 55. 4.100
libavfilter 3. 89.100 / 3. 89.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
Trailing options were found on the commandline.
[mpegts @ 028da8e0] probed stream 0 failed
[mpegts @ 028da8e0] probed stream 1 failed
[mpegts @ 028da8e0] Could not find codec parameters for stream 0 (Unknown:
none ([6][0][0][0] / 0x0006)): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize'
options
[mpegts @ 028da8e0] Could not find codec parameters for stream 1 (Unknown:
none ([6][0][0][0] / 0x0006)): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize'
options
udp://127.0.0.1:1400: could not find codec parameters
Any advice?
thanks
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