[FFmpeg-trac] #654(FFmpeg:new): When listening from a mpeg-ts source, when the codec to HE-ACC mono, SWR doesn't detect the number of channels correctly!

Tue Nov 15 01:22:44 CET 2011

#654: When listening from a mpeg-ts source, when the codec to HE-ACC mono, SWR
doesn't detect the number of channels correctly!
--------------------------------------+---------------------------------
               Reporter:  asbro       |                  Owner:  michael
                   Type:  defect      |                 Status:  new
               Priority:  normal      |              Component:  FFmpeg
                Version:  git-master  |               Keywords:
             Blocked By:              |               Blocking:
Reproduced by developer:  0           |  Analyzed by developer:  0
--------------------------------------+---------------------------------
 [root at ns360662 ~]# ffmpeg -y -loglevel info -vsync 2 -async 4000 -i
 "udp://0.0.0.0:30000?pkt_size=1316" -r 15 -g 30 -c:v libx264 -threads 2
 -preset fast -vprofile baseline -level 3.0 -b:v 200k -s 320x180 -c:a
 libfaac -b:a 128k -ac 2 -ar 44100 -f flv "rtmp://0.0.0.0:1945/live/iphone"
 ffmpeg version N-34855-gc8136eb, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Nov 14 2011 22:04:45 with gcc 4.1.2 20080704 (Red Hat 4.1.2-51)
   configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64
 --mandir=/usr/share/man --enable-shared --enable-runtime-cpudetect
 --enable-gpl --enable-version3 --enable-debug --enable-postproc --enable-
 avfilter --enable-libfreetype --enable-pthreads --disable-avisynth
 --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid
 --enable-libfaac --enable-libaacplus --enable-nonfree --extra-cflags='-O2
 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
 --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --disable-stripping
   libavutil    51. 24. 1 / 51. 24. 1
   libavcodec   53. 33. 0 / 53. 33. 0
   libavformat  53. 20. 0 / 53. 20. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 48. 1 /  2. 48. 1
   libswscale    2.  1. 0 /  2.  1. 0
   libpostproc  51.  2. 0 / 51.  2. 0
 [mpegts @ 0x621120] Unable to seek back to the start


 [mpegts @ 0x621120] max_analyze_duration 5000000 reached at 5013600
 [mpegts @ 0x621120] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, mpegts, from 'udp://0.0.0.0:30000?pkt_size=1316':
   Duration: N/A, start: 54.202311, bitrate: 116 kb/s
   Program 1
     Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B),
 yuv420p, 640x360 [SAR 1:1 DAR 16:9], 40.4
 6 fps, 25 tbr, 90k tbn, 50 tbc
     Stream #0:1[0x101]: Audio: aac ([15][0][0][0] / 0x000F), 44100 Hz,
 stereo, s16, 116 kb/s
 [buffer @ 0x92bca0] w:640 h:360 pixfmt:yuv420p tb:1/1000000 sar:1/1
 sws_param:
 [scale @ 0x64c2a0] w:640 h:360 fmt:yuv420p -> w:320 h:180 fmt:yuv420p
 flags:0x4
 [libx264 @ 0x676660] using SAR=1/1
 [libx264 @ 0x676660] using cpu capabilities: MMX2 SSE2Fast SSSE3
 FastShuffle SSE4.1 Cache64
 [libx264 @ 0x676660] profile Constrained Baseline, level 3.0
 [libx264 @ 0x676660] 264 - core 119 r2106 07efeb4 - H.264/MPEG-4 AVC codec
 - Copyleft 2003-2011 - http://www.v
 ideolan.org/x264.html - options: cabac=0 ref=2 deblock=1:0:0
 analyse=0x1:0x111 me=hex subme=6 psy=1 psy_rd=1.0
 0:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0
 deadzone=21,11 fast_pskip=1 chroma_qp_offs
 et=-2 threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0
 bluray_compat=0 constrained_intra=0 bframes=0 we
 ightp=0 keyint=30 keyint_min=3 scenecut=40 intra_refresh=0 rc_lookahead=30
 rc=abr mbtree=1 bitrate=200 ratetol
 =1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
 Output #0, flv, to 'rtmp://0.0.0.0:1945/live/iphone':
   Metadata:
     encoder         : Lavf53.20.0
     Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p, 320x180
 [SAR 1:1 DAR 16:9], q=-1--1, 200 kb/s,
 1k tbn, 15 tbc
     Stream #0:1: Audio: aac ([10][0][0][0] / 0x000A), 44100 Hz, 2
 channels, s16, 128 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 -> libx264)
   Stream #0:1 -> #0:1 (aac -> libfaac)
 Press [q] to stop, [?] for help
 Input stream #0:1 frame changed from rate:44100 fmt:s16 ch:2 to rate:48000
 fmt:s16 ch:2 drop=2002
 [SWR @ 0x685720] Input channel layout has a different number of channels
 than the number of used channels, ignoring layout
 Input stream #0:1 frame changed from rate:48000 fmt:s16 ch:2 to rate:44100
 fmt:s16 ch:2 drop=2056
 frame= 9125 fps= 15 q=28.0 size=   25608kB time=00:10:24.73 bitrate=
 335.8kbits/s dup=0 drop=5934

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/654>
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