Problem in transcoding to aac-lc with various bitrates
Posted: 08 Dec 2010 15:21
Hi all,
When I transcode audio+video stream by giving acodec=mp4a,ab=16,samplerate=44100,channels=1, I am getting the transcoded stream with abudio bit rate of 59kbps. I tried by giving ab =32, still the transcoded stream is have 59kbps.
The exact command I used is
export LICENSE_FILE_PATH=/opt/iZenTube/mss/bin/License.dat; /opt/iZenTube/mss/bin/vlc -I dummy "/opt/lampp/htdocs/ugc/seyretfiles/uploads//videos/user_77/user_77_vntyc608zgu9r3.mp4" --sout '#transcode{venc=x264{deadzone-intra=8,deadzone-inter=24,aud=1,non-deterministic,no-dct-decimate,no-fast-pskip,merange=24,asm=1,profile=baseline,vbv-bufsize=512,qcomp=0.1,qblur=1.0,direct=auto,keyint=9,min-keyint=2,me=tesa,vbv-maxrate=96,ipratio=1.40,no-psnr,subme=9,bpyramid=0,qp=151,qpmin=0,bframes=0,no-cabac,ref=1,mixed-refs=1,nf,level=12,deblock=-2:-1,trellis=2,crf=18,partitions=all},vcodec=h264,vb=64,acodec=mp4a,ab=16,samplerate=44100,channels=1,height=240,width=320,fps=11}:std{access=file,mux=mp4,dst="/opt/lampp/htdocs/ugc/seyretfiles/uploads//destination/user_77/ut_mobile_symbian_user_77_vntyc608zgu9r3.mp4"}' vlc://quit
Please suggest changes to the above command, so that audio can be transcoded into aac-lc with desired bitrate.
When I transcode audio+video stream by giving acodec=mp4a,ab=16,samplerate=44100,channels=1, I am getting the transcoded stream with abudio bit rate of 59kbps. I tried by giving ab =32, still the transcoded stream is have 59kbps.
The exact command I used is
export LICENSE_FILE_PATH=/opt/iZenTube/mss/bin/License.dat; /opt/iZenTube/mss/bin/vlc -I dummy "/opt/lampp/htdocs/ugc/seyretfiles/uploads//videos/user_77/user_77_vntyc608zgu9r3.mp4" --sout '#transcode{venc=x264{deadzone-intra=8,deadzone-inter=24,aud=1,non-deterministic,no-dct-decimate,no-fast-pskip,merange=24,asm=1,profile=baseline,vbv-bufsize=512,qcomp=0.1,qblur=1.0,direct=auto,keyint=9,min-keyint=2,me=tesa,vbv-maxrate=96,ipratio=1.40,no-psnr,subme=9,bpyramid=0,qp=151,qpmin=0,bframes=0,no-cabac,ref=1,mixed-refs=1,nf,level=12,deblock=-2:-1,trellis=2,crf=18,partitions=all},vcodec=h264,vb=64,acodec=mp4a,ab=16,samplerate=44100,channels=1,height=240,width=320,fps=11}:std{access=file,mux=mp4,dst="/opt/lampp/htdocs/ugc/seyretfiles/uploads//destination/user_77/ut_mobile_symbian_user_77_vntyc608zgu9r3.mp4"}' vlc://quit
Please suggest changes to the above command, so that audio can be transcoded into aac-lc with desired bitrate.