मेरे पास कुछ पुराने हार्डवेयर हैं इसलिए मैं चमत्कार की उम्मीद नहीं कर रहा हूं। मैं मानक गुणवत्ता पर एक वेब कैमरा से ustream तक स्ट्रीम करना चाहता हूं।
मैं एक कोड का उपयोग कर रहा हूँ
sudo ffmpeg -re -f v4l2 -i /dev/video1 -f flv "rtmp://1.16543hvtJ6aU flashver=FME/2.5\20(compatible;\20FMSc\201.0)"
या
sudo ffmpeg -re -f v4l2 -r 25 -s 640x480 -i /dev/video1 -f flv "rtmp://1.166aU flashver=FME/2.5\20(compatible;\20FMSc\201.0)
मुझे जैसे परिणाम मिल रहे हैं
Tasks: 102 total, 1 running, 99 sleeping, 2 stopped, 0 zombie
Cpu(s): 5.7%us, 0.7%sy, 0.0%ni, 93.6%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 1920560k total, 339028k used, 1581532k free, 19112k buffers
Swap: 1963004k total, 0k used, 1963004k free, 129300k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3176 root 20 0 222m 31m 24m S 5.0 1.7 0:01.60 ffmpeg
and
Metadata:
encoder : Lavf53.32.100
Stream #0:0: Video: flv1 ([2][0][0][0] / 0x0002), yuv420p, 640x480, q=2-31, 200 kb/s, 1k tbn, 30 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> flv)
Press [q] to stop, [?] for help
frame= 330 fps= 5 q=2.5 size= 808kB time=00:01:02.70 bitrate= 105.5kbits/s dup=0 drop=137
मैं इस प्रणाली को कैसे जोर से धकेल सकता हूं या यह पता लगा सकता हूं कि मेरी अड़चन कहां है?
server@cryo:~$ ffmpeg -re -f v4l2 -r 25 -s 640x480 -i /dev/video0 -f flv "rtmp://1.1654tJ6aU flashver=FME/2.5\20(compatible;\20FMSc\201.0)" ffmpeg version 0.10.9-7:0.10.9-1~precise1 Copyright (c) 2000-2013 the FFmpeg developers
built on Oct 4 2013 06:37:30 with gcc 4.6.3
configuration: --arch=amd64 --disable-stripping --enable-pthreads --enable-runtime-cpudetect --extra-version='7:0.10.9-1~precise1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
avcodec configuration: --arch=amd64 --disable-stripping --enable-pthreads --enable-runtime-cpudetect --extra-version='7:0.10.9-1~precise1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libvo-amrwbenc
libavutil 51. 35.100 / 51. 35.100
libavcodec 53. 61.100 / 53. 61.100
libavformat 53. 32.100 / 53. 32.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 61.100 / 2. 61.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
[video4linux2,v4l2 @ 0x252f4a0] Estimating duration from bitrate, this may be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 120370.039311, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj422p, 640x480, -4 kb/s, 25 tbr, 1000k tbn, 25 tbc
Incompatible pixel format 'yuvj422p' for codec 'flv', auto-selecting format 'yuv420p'
[buffer @ 0x253d2c0] w:640 h:480 pixfmt:yuvj422p tb:1/1000000 sar:0/1 sws_param:
[buffersink @ 0x253d6c0] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'out'
[scale @ 0x253df60] w:640 h:480 fmt:yuvj422p -> w:640 h:480 fmt:yuv420p flags:0x4
Output #0, flv, to 'rtmp://1.16543355.fme.ustream.tv/ustreamVideo/16543355/BGcZ5ejm9mx5WxCXXbJ3xRfLWhvtJ6aU flashver=FME/2.5\20(compatible;\20FMSc\201.0)':
Metadata:
encoder : Lavf53.32.100
Stream #0:0: Video: flv1 ([2][0][0][0] / 0x0002), yuv420p, 640x480, q=2-31, 200 kb/s, 1k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg -> flv)
Press [q] to stop, [?] for help
frame= 198 fps= 12 q=2.0 size= 222kB time=00:00:16.60 bitrate= 109.6kbits/s
या
server@cryo:~$ ffmpeg -re -f v4l2 -r 25 -s 640x480 -i /dev/video1 -f flv "rtmp://1.16543355.fme.ustream.tv/ustreamVideo/16543355/BGcZ5ejm9mx5WxCXXbJ3xRfLWhvtJ6aU flashver=FME/2.5\20(compatible;\20FMSc\201.0)"
ffmpeg version 0.10.9-7:0.10.9-1~precise1 Copyright (c) 2000-2013 the FFmpeg developers
built on Oct 4 2013 06:37:30 with gcc 4.6.3
configuration: --arch=amd64 --disable-stripping --enable-pthreads --enable-runtime-cpudetect --extra-version='7:0.10.9-1~precise1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
avcodec configuration: --arch=amd64 --disable-stripping --enable-pthreads --enable-runtime-cpudetect --extra-version='7:0.10.9-1~precise1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-libcdio --enable-x11grab --enable-libx264 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libvo-amrwbenc
libavutil 51. 35.100 / 51. 35.100
libavcodec 53. 61.100 / 53. 61.100
libavformat 53. 32.100 / 53. 32.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 61.100 / 2. 61.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
[video4linux2,v4l2 @ 0x262a4a0] The driver changed the time per frame from 1/25 to 1/30
[video4linux2,v4l2 @ 0x262a4a0] Estimating duration from bitrate, this may be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video1':
Duration: N/A, start: 163282.070169, bitrate: 147456 kb/s
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 147456 kb/s, 30 tbr, 1000k tbn, 30 tbc
Incompatible pixel format 'yuyv422' for codec 'flv', auto-selecting format 'yuv420p'
[buffer @ 0x26382a0] w:640 h:480 pixfmt:yuyv422 tb:1/1000000 sar:0/1 sws_param:
[buffersink @ 0x2638640] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'out'
[scale @ 0x2638ee0] w:640 h:480 fmt:yuyv422 -> w:640 h:480 fmt:yuv420p flags:0x4
Output #0, flv, to 'rtmp://1.16543355.fme.ustream.tv/ustreamVideo/16543355/BGcZ5ejm9mx5WxCXXbJ3xRfLWhvtJ6aU flashver=FME/2.5\20(compatible;\20FMSc\201.0)':
Metadata:
encoder : Lavf53.32.100
Stream #0:0: Video: flv1 ([2][0][0][0] / 0x0002), yuv420p, 640x480, q=2-31, 200 kb/s, 1k tbn, 30 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> flv)
Press [q] to stop, [?] for help
frame= 83 fps= 5 q=4.4 size= 267kB time=00:00:16.13 bitrate= 135.3kbits/s dup=0 drop=36
फ्रेम छोड़ने का संकेत कहाँ है?
—
राजिब
अंतिम ब्लॉक की अंतिम पंक्ति फ्रेम को छोड़ने से पता चलता है
—
wlraider70
video0और video1उपकरणों के बीच क्या अंतर है? का आउटपुट क्या है ffmpeg -f v4l2 -list_formats all -i /dev/video0? का आउटपुट क्या है ffmpeg -f v4l2 -i /dev/video0 -t 10 -f null -? -reइस मामले में मेरे लिए उपयोग का कोई मतलब नहीं है (आमतौर पर इसका इस्तेमाल अगर आप पहले से एन्कोडेड फाइल को स्ट्रीम करना चाहते हैं)।
ffmpegप्रत्येक कमांड के लिए पूरा कंसोल आउटपुट शामिल करें । आमतौर पर आप का उपयोग करने की जरूरत नहींsudoलिएffmpeg।