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ffmpeg를 사용하여 라디오 스트림을 g722로 트랜스 코딩하려고했습니다. 스트림이 작동하고 스트림을들을 수 있습니다. 문제는 출력 스트림이 입력 스트림보다 빠른 속도입니다. 결과가 좋지 않습니다. 나는 행운없이 atempo로 속도를 늦추려고했다. 이 15.xffmpeg 라디오 라이브 코드 변환 mp3/aac to g722
콘솔 출력 1.x에 따라 다릅니다
size= 241kB time=00:00:28.67 bitrate= 68.8kbits/s speed= 1.4x
: 같은
c:\ffmpeg\bin>ffmpeg -i http://lyd.nrk.no/nrk_radio_mp3_mp3_l -ac 1 -acodec g722 -f rtp -ab 64k -ar 16k rtp://192.168.0.99:555
ffmpeg version N-85750-ga75ef15 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 6.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
libavutil 55. 61.100/55. 61.100
libavcodec 57. 93.100/57. 93.100
libavformat 57. 72.101/57. 72.101
libavdevice 57. 7.100/57. 7.100
libavfilter 6. 88.100/6. 88.100
libswscale 4. 7.101/4. 7.101
libswresample 2. 8.100/2. 8.100
libpostproc 54. 6.100/54. 6.100
Input #0, mp3, from 'http://lyd.nrk.no/nrk_radio_mp3_mp3_l':
Metadata:
icy-name : NRK mP3
icy-pub : 1
Duration: N/A, start: 0.000000, bitrate: 96 kb/s
Stream #0:0: Audio: mp3, 48000 Hz, stereo, s16p, 96 kb/s
[udp @ 000000000244bec0] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
[udp @ 00000000024781a0] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
Stream mapping:
Stream #0:0 -> #0:0 (mp3 (native) -> adpcm_g722 (g722))
Press [q] to stop, [?] for help
Output #0, rtp, to 'rtp://192.168.0.99:555':
Metadata:
icy-name : NRK mP3
icy-pub : 1
encoder : Lavf57.72.101
Stream #0:0: Audio: adpcm_g722 (g722), 16000 Hz, mono, s16, 64 kb/s
Metadata:
encoder : Lavc57.93.100 g722
SDP:
v=0
o=- 0 0 IN IP4 127.0.0.1
s=No Name
c=IN IP4 192.168.0.99
t=0 0
a=tool:libavformat 57.72.101
m=audio 555 RTP/AVP 9
b=AS:64
size= 413kB time=00:00:49.17 bitrate= 68.8kbits/s speed=1.43x
사람이 잘못하고 무슨 메신저 알고 있나요? 감사