Unable to transcode/stream avc/aac.flv to anything

[jhb50]

vlc-help, I would appreciate your help.

As I have posted in viewtopic.php?f=14&t=76852&start=0
I can transcode my videos from most formats to MPEG-2 as they are streamed.
This includes VP6/MP3.flv files.

AVC/AAC.flv files will however not transcode. They will play but when streamed the server shows the timer running but play locally and play with the client do not receive a transcoded stream. I tried removing the AAC stream and transcoding only the AVC but this makes no difference. I also tried transcoding to DIVX but again no difference. It would appear the problem is in ffmpeg recognizing this avc.flv stream. This problem occurs from both the GUI and Command line.

Here are the :sout's
--sout #transcode{vcodec=mp2v,vb=6000,scale=.5,width=640,fps=30,acodec=a52,ab=384,channels=6,samplerate=48000,soverlay}:duplicate{dst=std{access=http,mux=ts,dst=:8081},dst=display}
--sout=#transcode{vcodec=DIV3,vb=800,scale=1,acodec=mp3,ab=128,channels=2,samplerate=44100}:duplicate{dst=std{access=http,mux=asf,dst=:8081/},dst=display}

I am using 1.0.5 and W7-64. I'd appreciate your advice before I post this as a bug. Thank you.

Here is the log:
oking for packetizer module: 21 candidates
main debug: using packetizer module "packetizer_h264"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: thread (decoder) created at priority 0 (../.././src/input/decoder.c:301)
main debug: thread started
main debug: looking for packetizer module: 21 candidates
packetizer_mpeg4audio debug: running MPEG4 audio packetizer
packetizer_mpeg4audio debug: AAC 44100Hz 1024 samples/frame
main debug: using packetizer module "packetizer_mpeg4audio"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: thread started
main debug: thread (decoder) created at priority 2 (../.././src/input/decoder.c:301)
main debug: starting in async mode
main debug: looking for meta reader module: 2 candidates
lua debug: Trying Lua scripts in C:\Users\John\AppData\Roaming\vlc\lua\meta\reader
lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\reader
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\reader\filename.lua
main debug: no meta reader module matching "any" could be loaded
main debug: TIMER module_need() : 5.000 ms - Total 5.000 ms / 1 intvls (Avg 5.000 ms)
main debug: `file:///D:/All%20Video%20Recordings/GETFLV%20Downloads/Austin%20City%20Limits%20-%20Willie%20Nelson%20-%20Pilot%20Episode%201974.mp4.flv' successfully opened
main debug: Buffering 0%
main debug: switching to sync mode
main debug: adding a new sout input (sout_input:024023c8)
main debug: Buffering 7%
stream_out_transcode debug: creating audio transcoding from fcc=`mp4a' to fcc=`a52 '
main debug: Buffering 15%
main debug: Buffering 23%
main debug: Buffering 31%
main debug: Buffering 38%
main debug: Buffering 46%
main debug: looking for decoder module: 34 candidates
main debug: Buffering 54%
main debug: Buffering 62%
main debug: Buffering 69%
main debug: Buffering 77%
main debug: Buffering 85%
main debug: Buffering 93%
main debug: Stream buffering done (302 ms in 0 ms)
main debug: using decoder module "faad"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for encoder module: 12 candidates
avcodec debug: libavcodec already initialized
avcodec debug: found encoder A52 Audio (aka AC3)
main debug: using encoder module "avcodec"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
stream_out_transcode debug: Looking for filter (f32l->s16l, channels 2->1, rate 44100->48000)
main debug: looking for audio filter module: 14 candidates
main debug: no audio filter module matching "any" could be loaded
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main error: Failed to create audio filter
stream_out_transcode error: Failed to find conversion filter for resampling
main debug: removing module "faad"
main debug: removing module "avcodec"
stream_out_transcode error: cannot create audio chain
main error: cannot create packetizer output (mp4a)
main debug: Decoder buffering done in 0 ms

[VLC_help]

IIRC VLC cannot upmix audio. So stereo -> 5.1 won't work. But channels 2->1 that would indicate something else than the commands you have given.

[jhb50]

Thanks for your response VLC_help.

I get an indentical log if I specify channels = 2, but the problem does not appear to be with the audio stream, rather with the video.
Following is the log using the same command when the source is also AVC/AAC but in an .mp4 container. As you can see the debug for the video is completely different using mp4 debug whereas the flv file uses a different path, and the audio does not encounter the 2>1 problem which I assume is another bug but not the primary one that I am experiencing. The avc/aac.mp4 file transcodes to mpeg2 and streams fine but the avc/aac.flv does not. As I said earlier, the same problem occurs with a video only .flv file.

I have in fact persued this further and have found that VLC will not even convert avc/aac.flv files to ANY format! This is a very specific and critical usability problem.
This inability to convert means that they cannot be transcoded and streamed, or even streamed since flv is not a supported streaming package.

With the transition of many sites such as YouTube, Hulu and PBS from VP6/MP3.flv to AVC/AAC.flv this has become a critical deficiency in VLC, since none of these videos from these sites can be transcoded and/or streamed, until this problem is fixed.

Scaning the logs I find that this problem has been reported a number of times since mid 2009.

1) viewtopic.php?f=14&t=60234
Transcoding/conversion problems, which you confirmed and raised ticket 2850
2)no video in FLV conversion output file using v 1.0.0
viewtopic.php?f=14&t=62718
3)No video after flv to mp4 conversion - audio only
viewtopic.php?f=14&t=56859

I have posted a request in 2850 regarding the growing urgency of this deficiency.
What can I do/provide to assist in getting this bug corrected?
I'd appreciate if you can see if its priority can be increased.

Thanks

---------------------------------------------------------------



main debug: processing request item Closed Captions.yt.avc.480x360.mp4 node Playlist skip 0
main debug: resyncing on Closed Captions.yt.avc.480x360.mp4
main debug: Closed Captions.yt.avc.480x360.mp4 is at 0
main debug: starting new item
main debug: creating new input thread
main debug: Creating an input for 'Closed Captions.yt.avc.480x360.mp4'
main debug: thread started
main debug: thread (input) created at priority 1 (../.././src/input/input.c:214)
main debug: using sout chain=`transcode{venc=ffmpeg,vcodec=mp2v,vb=6000,scale=.5,width=640,fps=30,acodec=a52,ab=384,channels=6,samplerate=48000,soverlay}:duplicate{dst=std{access=http,mux=ts,dst=:8081},dst=display}'
main debug: stream=`duplicate'
main debug: looking for sout stream module: 1 candidate
stream_out_duplicate debug: creating 'duplicate'
stream_out_duplicate debug: * adding `std{access=http,mux=ts,dst=:8081}'
main debug: stream=`std'
main debug: looking for sout stream module: 1 candidate
main debug: set config option: sout-standard-access to http
main debug: set config option: sout-standard-mux to ts
main debug: set config option: sout-standard-dst to :8081
stream_out_standard debug: creating `http/ts://:8081'
stream_out_standard debug: using `http/ts://:8081'
main debug: looking for sout access module: 1 candidate
main info: creating httpd
main debug: net: listening to port 8081
qt4 debug: IM: Setting an input
main debug: using sout access module "access_output_http"
main debug: TIMER module_need() : 26.000 ms - Total 26.000 ms / 1 intvls (Avg 26.000 ms)
stream_out_standard debug: access opened
main debug: looking for sout mux module: 1 candidate
mux_ts debug: shaping=200000 pcr=70000 dts_delay=400000
main debug: using sout mux module "mux_ts"
main debug: TIMER module_need() : 2.000 ms - Total 2.000 ms / 1 intvls (Avg 2.000 ms)
main debug: muxer support adding stream at any time
main debug: muxer prefers to wait for all ES before starting to mux
stream_out_standard debug: mux opened
main debug: using sout stream module "stream_out_standard"
main debug: TIMER module_need() : 28.000 ms - Total 28.000 ms / 1 intvls (Avg 28.000 ms)
stream_out_duplicate debug: * adding `display'
main debug: stream=`display'
main debug: looking for sout stream module: 1 candidate
main debug: using sout stream module "stream_out_display"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: using sout stream module "stream_out_duplicate"
main debug: TIMER module_need() : 29.000 ms - Total 29.000 ms / 1 intvls (Avg 29.000 ms)
main debug: stream=`transcode'
main debug: looking for sout stream module: 1 candidate
main debug: set config option: sout-transcode-venc to ffmpeg
main debug: set config option: sout-transcode-vcodec to mp2v
main debug: set config option: sout-transcode-vb to 6000
main debug: set config option: sout-transcode-scale to .5
main debug: set config option: sout-transcode-width to 640
main debug: set config option: sout-transcode-fps to 30
main debug: set config option: sout-transcode-acodec to a52
main debug: set config option: sout-transcode-ab to 384
main debug: set config option: sout-transcode-channels to 6
main debug: set config option: sout-transcode-samplerate to 48000
main debug: set config option: sout-transcode-soverlay to (null)
stream_out_transcode debug: codec audio=a52 48000Hz 6 channels 384Kb/s
stream_out_transcode debug: codec video=mp2v 640x0 scaling: 0.500000 6000kb/s
main debug: using sout stream module "stream_out_transcode"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: using timeshift granularity of 50 MiB
main debug: using timeshift path 'C:\Users\John\AppData\Local\Temp'
main debug: `file:///D:/All%20Video%20Recordings/GETFLV%20Downloads/Closed%20Captions.yt.avc.480x360.mp4' gives access `file' demux `' path `D:\All Video Recordings\GETFLV Downloads\Closed Captions.yt.avc.480x360.mp4'
main debug: creating demux: access='file' demux='' path='D:\All Video Recordings\GETFLV Downloads\Closed Captions.yt.avc.480x360.mp4'
main debug: looking for access_demux module: 2 candidates
main debug: no access_demux module matching "file" could be loaded
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: creating access 'file' path='D:\All Video Recordings\GETFLV Downloads\Closed Captions.yt.avc.480x360.mp4'
main debug: looking for access module: 2 candidates
filesystem debug: opening file `D:\All Video Recordings\GETFLV Downloads\Closed Captions.yt.avc.480x360.mp4'
main debug: using access module "filesystem"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: Using AStream*Stream
main debug: pre buffering
main debug: received first data after 0 ms
main debug: pre-buffering done 1024 bytes in 0s - 1000000 KiB/s
main debug: looking for stream_filter module: 2 candidates
main debug: no stream_filter module matching "any" could be loaded
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for stream_filter module: 1 candidate
main debug: using stream_filter module "stream_filter_record"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: creating demux: access='file' demux='' path='D:\All Video Recordings\GETFLV Downloads\Closed Captions.yt.avc.480x360.mp4'
main debug: looking for demux module: 50 candidates
mp4 debug: found Box: ftyp size 28
mp4 debug: found Box: moov size 39616
mp4 debug: found Box: mvhd size 108
mp4 debug: read box: "mvhd" creation 733224d-53h:22m:53s modification 733224d-53h:22m:53s time scale 600 duration 694977d-48h:00m:01s rate 1.000000 volume 1.000000 next track id 3
mp4 debug: found Box: iods size 21
mp4 warning: unknown box type iods (incompletely loaded)
mp4 debug: found Box: trak size 22993
mp4 debug: found Box: tkhd size 92
mp4 debug: read box: "tkhd" creation 733224d-53h:22m:53s modification 733224d-53h:22m:54s duration 694977d-08h:51m:33s track ID 1 layer 0 volume 1.000000 width 0.000000 height 0.000000
mp4 debug: found Box: mdia size 22893
mp4 debug: found Box: mdhd size 32
mp4 debug: read box: "mdhd" creation 733224d-53h:22m:53s modification 733224d-53h:22m:54s time scale 44100 duration 695040d-21h:09m:20s language und
mp4 debug: found Box: hdlr size 66
mp4 debug: read box: "hdlr" handler type soun name (C) 2007 Google Inc. v08.13.2007.
mp4 debug: found Box: minf size 22787
mp4 debug: found Box: smhd size 16
mp4 debug: read box: "smhd" balance 0.000000
mp4 debug: found Box: dinf size 36
mp4 debug: found Box: dref size 28
mp4 debug: found Box: url size 12
mp4 debug: read box: "url" url: (null)
mp4 debug: read box: "dref" entry-count 1
mp4 debug: found Box: stbl size 22727
mp4 debug: found Box: stsd size 91
mp4 debug: found Box: mp4a size 75
mp4 debug: read box: "soun" mp4 or qt1/2 (rest=39)
mp4 debug: found Box: esds size 39
mp4 debug: found esds MPEG4ESDescr (25Bytes)
mp4 debug: found esds MP4DecConfigDescr (17Bytes)
mp4 debug: found esds MP4DecSpecificDescr (2Bytes)
mp4 debug: read box: "soun" in stsd channel 2 sample size 16 sample rate 44100.000000
mp4 debug: read box: "stsd" entry-count 1
mp4 debug: found Box: stts size 24
mp4 debug: read box: "stts" entry-count 1
mp4 debug: found Box: stsc size 28
mp4 debug: read box: "stsc" entry-count 1
mp4 debug: found Box: stsz size 21580
mp4 debug: read box: "stsz" sample-size 0 sample-count 5390
mp4 debug: found Box: stco size 996
mp4 debug: read box: "co64" entry-count 245
mp4 debug: found Box: trak size 15730
mp4 debug: found Box: tkhd size 92
mp4 debug: read box: "tkhd" creation 733224d-53h:22m:54s modification 733224d-53h:22m:54s duration 694977d-08h:51m:36s track ID 2 layer 0 volume 0.000000 width 480.000000 height 360.000000
mp4 debug: found Box: mdia size 15630
mp4 debug: found Box: mdhd size 32
mp4 debug: read box: "mdhd" creation 733224d-53h:22m:54s modification 733224d-53h:22m:54s time scale 24992 duration 695013d-16h:53m:20s language und
mp4 debug: found Box: hdlr size 66
mp4 debug: read box: "hdlr" handler type vide name (C) 2007 Google Inc. v08.13.2007.
mp4 debug: found Box: minf size 15524
mp4 debug: found Box: vmhd size 20
mp4 debug: read box: "vmhd" graphics-mode 0 opcolor (0, 0, 0)
mp4 debug: found Box: dinf size 36
mp4 debug: found Box: dref size 28
mp4 debug: found Box: url size 12
mp4 debug: read box: "url" url: (null)
mp4 debug: read box: "dref" entry-count 1
mp4 debug: found Box: stbl size 15460
mp4 debug: found Box: stsd size 160
mp4 debug: found Box: avc1 size 144
mp4 debug: found Box: avcC size 38
mp4 debug: read box: "avcC" version=1 profile=0x42 level=0x15 length size=2 sps=1 pps=1
mp4 debug: - sps[0] length=15
mp4 debug: - pps[0] length=4
mp4 debug: found Box: btrt size 20
mp4 warning: unknown box type btrt (incompletely loaded)
mp4 debug: read box: "vide" in stsd 480x360 depth 24
mp4 debug: read box: "stsd" entry-count 1
mp4 debug: found Box: stts size 24
mp4 debug: read box: "stts" entry-count 1
mp4 debug: found Box: stss size 344
mp4 debug: read box: "stss" entry-count 82
mp4 debug: found Box: stsc size 1396
mp4 debug: read box: "stsc" entry-count 115
mp4 debug: found Box: stsz size 12532
mp4 debug: read box: "stsz" sample-size 0 sample-count 3128
mp4 debug: found Box: stco size 996
mp4 debug: read box: "co64" entry-count 245
mp4 debug: found Box: udta size 756
mp4 debug: found Box: meta size 748
mp4 debug: found Box: hdlr size 33
mp4 debug: read box: "hdlr" handler type mdir name
mp4 debug: found Box: ilst size 703
mp4 debug: found Box: gsst size 25
mp4 warning: unknown box type gsst (incompletely loaded)
mp4 debug: found Box: gstd size 30
mp4 warning: unknown box type gstd (incompletely loaded)
mp4 debug: found Box: gssd size 56
mp4 warning: unknown box type gssd (incompletely loaded)
mp4 debug: found Box: gspu size 152
mp4 warning: unknown box type gspu (incompletely loaded)
mp4 debug: found Box: gspm size 152
mp4 warning: unknown box type gspm (incompletely loaded)
mp4 debug: found Box: gshh size 280
mp4 warning: unknown box type gshh (incompletely loaded)
mp4 debug: found Box: mdat size 8963400
mp4 debug: skip box: "mdat"
mp4 debug: dumping root Box "root"
mp4 debug: | + ftyp size 28
mp4 debug: | + moov size 39616
mp4 debug: | | + mvhd size 108
mp4 debug: | | + iods size 21
mp4 debug: | | + trak size 22993
mp4 debug: | | | + tkhd size 92
mp4 debug: | | | + mdia size 22893
mp4 debug: | | | | + mdhd size 32
mp4 debug: | | | | + hdlr size 66
mp4 debug: | | | | + minf size 22787
mp4 debug: | | | | | + smhd size 16
mp4 debug: | | | | | + dinf size 36
mp4 debug: | | | | | | + dref size 28
mp4 debug: | | | | | | | + url size 12
mp4 debug: | | | | | + stbl size 22727
mp4 debug: | | | | | | + stsd size 91
mp4 debug: | | | | | | | + mp4a size 75
mp4 debug: | | | | | | | | + esds size 39
mp4 debug: | | | | | | + stts size 24
mp4 debug: | | | | | | + stsc size 28
mp4 debug: | | | | | | + stsz size 21580
mp4 debug: | | | | | | + stco size 996
mp4 debug: | | + trak size 15730
mp4 debug: | | | + tkhd size 92
mp4 debug: | | | + mdia size 15630
mp4 debug: | | | | + mdhd size 32
mp4 debug: | | | | + hdlr size 66
mp4 debug: | | | | + minf size 15524
mp4 debug: | | | | | + vmhd size 20
mp4 debug: | | | | | + dinf size 36
mp4 debug: | | | | | | + dref size 28
mp4 debug: | | | | | | | + url size 12
mp4 debug: | | | | | + stbl size 15460
mp4 debug: | | | | | | + stsd size 160
mp4 debug: | | | | | | | + avc1 size 144
mp4 debug: | | | | | | | | + avcC size 38
mp4 debug: | | | | | | | | + btrt size 20
mp4 debug: | | | | | | + stts size 24
mp4 debug: | | | | | | + stss size 344
mp4 debug: | | | | | | + stsc size 1396
mp4 debug: | | | | | | + stsz size 12532
mp4 debug: | | | | | | + stco size 996
mp4 debug: | | + udta size 756
mp4 debug: | | | + meta size 748
mp4 debug: | | | | + hdlr size 33
mp4 debug: | | | | + ilst size 703
mp4 debug: | | | | | + gsst size 25
mp4 debug: | | | | | + gstd size 30
mp4 debug: | | | | | + gssd size 56
mp4 debug: | | | | | + gspu size 152
mp4 debug: | | | | | + gspm size 152
mp4 debug: | | | | | + gshh size 280
mp4 debug: | + mdat size 8963400
mp4 debug: unrecognized major file specification (mp42).
mp4 debug: found 2 tracks
mp4 debug: track[Id 0x1] read 245 chunk
mp4 debug: track[Id 0x1] read 5390 samples length:125s
main debug: selecting program id=0
mp4 debug: adding track[Id 0x1] audio (enable) language undef
mp4 debug: track[Id 0x2] read 245 chunk
mp4 debug: track[Id 0x2] read 3128 samples length:125s
mp4 debug: adding track[Id 0x2] video (enable) language undef
main debug: using demux module "mp4"
main debug: TIMER module_need() : 4.000 ms - Total 4.000 ms / 1 intvls (Avg 4.000 ms)
mp4 warning: control query 14 unimplemented
main debug: looking for a subtitle file in D:\All Video Recordings\GETFLV Downloads\
main debug: looking for packetizer module: 21 candidates
packetizer_mpeg4audio debug: running MPEG4 audio packetizer
packetizer_mpeg4audio debug: AAC 44100Hz 1024 samples/frame
main debug: using packetizer module "packetizer_mpeg4audio"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: thread started
main debug: thread (decoder) created at priority 2 (../.././src/input/decoder.c:301)
main debug: looking for packetizer module: 21 candidates
packetizer_h264 debug: found NAL_SPS (sps_id=0)
packetizer_h264 debug: found NAL_PPS (pps_id=0 sps_id=0)
packetizer_h264 debug: avcC length size=2, sps=1, pps=1
main debug: using packetizer module "packetizer_h264"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: thread started
main debug: thread (decoder) created at priority 0 (../.././src/input/decoder.c:301)
main debug: starting in async mode
main debug: looking for meta reader module: 2 candidates
lua debug: Trying Lua scripts in C:\Users\John\AppData\Roaming\vlc\lua\meta\reader
lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\reader
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\reader\filename.lua
main debug: no meta reader module matching "any" could be loaded
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: `file:///D:/All%20Video%20Recordings/GETFLV%20Downloads/Closed%20Captions.yt.avc.480x360.mp4' successfully opened
mp4 debug: track[Id 0x1] does not provide Sync Sample Box (stss)
mp4 debug: track[Id 0x2] using Sync Sample Box (stss)
mp4 debug: stts gives 0 --> 0 (sample number)
main debug: Buffering 0%
main debug: switching to sync mode
main debug: adding a new sout input (sout_input:04a9bdc0)
main debug: Buffering 0%
stream_out_transcode debug: creating audio transcoding from fcc=`mp4a' to fcc=`a52 '
main debug: adding a new sout input (sout_input:0287c600)
main debug: Buffering 33%
main debug: Buffering 66%
main debug: looking for decoder module: 34 candidates
main debug: Buffering 100%
main debug: Stream buffering done (400 ms in 1 ms)
main debug: using decoder module "faad"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: looking for encoder module: 12 candidates
avcodec debug: libavcodec already initialized
avcodec debug: found encoder A52 Audio (aka AC3)
main debug: using encoder module "avcodec"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
stream_out_transcode debug: Looking for filter (f32l->s16l, channels 2->2, rate 44100->48000)
main debug: looking for audio filter module: 14 candidates
main debug: no audio filter module matching "any" could be loaded
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main error: Failed to create audio filter
stream_out_transcode error: Failed to find conversion filter for resampling
main debug: removing module "faad"
main debug: removing module "avcodec"
stream_out_transcode error: cannot create audio chain
main error: cannot create packetizer output (mp4a)
stream_out_transcode debug: creating video transcoding from fcc=`h264' to fcc=`mp2v'
main debug: looking for decoder module: 34 candidates
avcodec debug: libavcodec already initialized
avcodec debug: trying to use direct rendering
avcodec debug: ffmpeg codec (H264 - MPEG-4 AVC (part 10)) started
main debug: using decoder module "avcodec"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: looking for encoder module: 1 candidate
avcodec debug: libavcodec already initialized
avcodec debug: found encoder MPEG-1/2 Video
main debug: using encoder module "avcodec"
main debug: TIMER module_need() : 2.000 ms - Total 2.000 ms / 1 intvls (Avg 2.000 ms)
main debug: removing module "avcodec"
main debug: Decoder buffering done in 4 ms
avcodec debug: using direct rendering
stream_out_transcode debug: late picture skipped (41000)
stream_out_transcode debug: late picture skipped (1988)
stream_out_transcode debug: drift is too high, resetting master sync
stream_out_transcode debug: decoder aspect is 1.333333:1
stream_out_transcode debug: source pixel aspect is 1.000000:1
stream_out_transcode debug: scaled pixel aspect is 1.000000:1
stream_out_transcode debug: source 480x360, destination 640x480
stream_out_transcode debug: encoder aspect is 0:480
main debug: looking for video filter2 module: 18 candidates
swscale debug: 480x360 chroma: I420 -> 640x480 chroma: I420 with scaling using Bicubic (good quality)
main debug: using video filter2 module "swscale"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: Filter 'Swscale' (0b21421c) appended to chain
stream_out_transcode debug: destination (after video filters) 640x480
main debug: looking for encoder module: 1 candidate
avcodec debug: libavcodec already initialized
avcodec debug: found encoder MPEG-1/2 Video
main debug: using encoder module "avcodec"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
stream_out_duplicate debug: duplicated a new stream codec=mpgv (es=1 group=0)
main debug: adding a new input
mux_ts debug: adding input codec=mpgv pid=68
mux_ts debug: new PCR PID is 68
stream_out_duplicate debug: - added for output 0
main debug: looking for decoder module: 34 candidates
avcodec debug: libavcodec already initialized
avcodec debug: trying to use direct rendering
avcodec debug: ffmpeg codec (MPEG-1/2 Video) started
main debug: using decoder module "avcodec"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: thread started
main debug: thread (decoder) created at priority 0 (../.././src/input/decoder.c:301)
stream_out_duplicate debug: - added for output 1
stream_out_transcode debug: drift is too high, resetting master sync
main debug: no usable vout present, spawning one
main debug: looking for text renderer module: 2 candidates
freetype debug: Building font databases.
freetype debug: Took 400000 microseconds
freetype debug: Using Arial as font from file C:/windows/fonts/arial.ttf
freetype debug: using fontsize: 2
main debug: using text renderer module "freetype"
main debug: TIMER module_need() : 403.000 ms - Total 403.000 ms / 1 intvls (Avg 403.000 ms)
main debug: looking for video filter2 module: 18 candidates
swscale debug: 32x32 chroma: YUVA -> 16x16 chroma: YUVA with scaling using Bicubic (good quality)
main debug: using video filter2 module "swscale"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: looking for video filter2 module: 18 candidates
yuvp debug: YUVP to YUVA converter
main debug: using video filter2 module "yuvp"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: window size: 640x480
main debug: Deinterlacing available
main debug: deinterlace 0, mode blend, is_needed 0
main debug: looking for video output module: 1 candidate
vout_wrapper debug: Opening vout display wrapper
main debug: looking for vout display module: 8 candidates
direct3d debug: creating Vout EventThread
direct3d debug: DirectXCreateWindow
main debug: looking for vout window hwnd module: 3 candidates
qt4 debug: requesting video...
qt4 debug: Video was requested 0, 0
main debug: using vout window hwnd module "qt4"
main debug: TIMER module_need() : 19.000 ms - Total 19.000 ms / 1 intvls (Avg 19.000 ms)
direct3d debug: created video sub-window
direct3d debug: Vout EventThread running
direct3d debug: disabling screen saver
main debug: VoutDisplayEvent 'resize' 656x518 window
direct3d warning: trying surface pixel format: YV12
direct3d debug: selected surface pixel format is YV12
direct3d debug: Direct3D scene created successfully
direct3d debug: Direct3D device adapter successfully initialized
main debug: using vout display module "direct3d"
main debug: TIMER module_need() : 166.000 ms - Total 166.000 ms / 1 intvls (Avg 166.000 ms)
main debug: using video output module "vout_wrapper"
main debug: TIMER module_need() : 166.000 ms - Total 166.000 ms / 1 intvls (Avg 166.000 ms)
main debug: got 1 direct buffer(s)
main debug: pic render sz 640x480, of (0,0), vsz 640x480, 4cc I420, sar 1:1, msk r0x0 g0x0 b0x0
main debug: pic in sz 640x480, of (0,0), vsz 640x480, 4cc I420, sar 1:1, msk r0x0 g0x0 b0x0
main debug: pic out sz 640x480, of (0,0), vsz 640x480, 4cc I420, sar 1:1, msk r0x0 g0x0 b0x0
main debug: direct render, mapping render pictures 0-23 to system pictures 1-24
main debug: VoutDisplayEvent 'resize' 640x480 window
avcodec debug: using direct rendering
main debug: Post-processing available
main warning: vlc_object_find_name(postproc) is not safe!
main warning: late picture skipped (400640 > -5507)
main warning: late picture skipped (367307 > -5507)
main warning: late picture skipped (333973 > -5507)
main warning: late picture skipped (300640 > -5507)
qt4 debug: Qt: Entering Fullscreen
main debug: control type=1

[jhb50]

Here is a further test that demonstrates that it is a video transcoding problem.
This log is for a transcode and stream from avc/aac.flv to mpeg2/aac.mpg ie: the audio is just copied.
In this case the audio does stream but there is no video.

main debug: processing request item Austin City Limits - Willie Nelson - Pilot Episode 1974.mp4.flv node Playlist skip 0
main debug: resyncing on Austin City Limits - Willie Nelson - Pilot Episode 1974.mp4.flv
main debug: Austin City Limits - Willie Nelson - Pilot Episode 1974.mp4.flv is at 0
main debug: starting new item
main debug: creating new input thread
main debug: Creating an input for 'Austin City Limits - Willie Nelson - Pilot Episode 1974.mp4.flv'
main debug: thread started
main debug: thread (input) created at priority 1 (../.././src/input/input.c:214)
main debug: using sout chain=`transcode{venc=ffmpeg,vcodec=mp2v,vb=6000,scale=.5,width=640,fps=30,soverlay}:duplicate{dst=std{access=http,mux=ts,dst=:8081},dst=display}'
main debug: stream=`duplicate'
main debug: looking for sout stream module: 1 candidate
stream_out_duplicate debug: creating 'duplicate'
stream_out_duplicate debug: * adding `std{access=http,mux=ts,dst=:8081}'
main debug: stream=`std'
main debug: looking for sout stream module: 1 candidate
main debug: set config option: sout-standard-access to http
main debug: set config option: sout-standard-mux to ts
main debug: set config option: sout-standard-dst to :8081
stream_out_standard debug: creating `http/ts://:8081'
stream_out_standard debug: using `http/ts://:8081'
main debug: looking for sout access module: 1 candidate
main info: creating httpd
main debug: net: listening to port 8081
qt4 debug: IM: Setting an input
main debug: using sout access module "access_output_http"
main debug: TIMER module_need() : 28.000 ms - Total 28.000 ms / 1 intvls (Avg 28.000 ms)
stream_out_standard debug: access opened
main debug: looking for sout mux module: 1 candidate
mux_ts debug: shaping=200000 pcr=70000 dts_delay=400000
main debug: using sout mux module "mux_ts"
main debug: TIMER module_need() : 3.000 ms - Total 3.000 ms / 1 intvls (Avg 3.000 ms)
main debug: muxer support adding stream at any time
main debug: muxer prefers to wait for all ES before starting to mux
stream_out_standard debug: mux opened
main debug: using sout stream module "stream_out_standard"
main debug: TIMER module_need() : 31.000 ms - Total 31.000 ms / 1 intvls (Avg 31.000 ms)
stream_out_duplicate debug: * adding `display'
main debug: stream=`display'
main debug: looking for sout stream module: 1 candidate
main debug: using sout stream module "stream_out_display"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: using sout stream module "stream_out_duplicate"
main debug: TIMER module_need() : 33.000 ms - Total 33.000 ms / 1 intvls (Avg 33.000 ms)
main debug: stream=`transcode'
main debug: looking for sout stream module: 1 candidate
main debug: set config option: sout-transcode-venc to ffmpeg
main debug: set config option: sout-transcode-vcodec to mp2v
main debug: set config option: sout-transcode-vb to 6000
main debug: set config option: sout-transcode-scale to .5
main debug: set config option: sout-transcode-width to 640
main debug: set config option: sout-transcode-fps to 30
main debug: set config option: sout-transcode-soverlay to (null)
stream_out_transcode debug: codec video=mp2v 640x0 scaling: 0.500000 6000kb/s
main debug: using sout stream module "stream_out_transcode"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: using timeshift granularity of 50 MiB
main debug: using timeshift path 'C:\Users\John\AppData\Local\Temp'
main debug: `file:///D:/All%20Video%20Recordings/GETFLV%20Downloads/Austin%20City%20Limits%20-%20Willie%20Nelson%20-%20Pilot%20Episode%201974.mp4.flv' gives access `file' demux `' path `D:\All Video Recordings\GETFLV Downloads\Austin City Limits - Willie Nelson - Pilot Episode 1974.mp4.flv'
main debug: creating demux: access='file' demux='' path='D:\All Video Recordings\GETFLV Downloads\Austin City Limits - Willie Nelson - Pilot Episode 1974.mp4.flv'
main debug: looking for access_demux module: 2 candidates
main debug: no access_demux module matching "file" could be loaded
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: creating access 'file' path='D:\All Video Recordings\GETFLV Downloads\Austin City Limits - Willie Nelson - Pilot Episode 1974.mp4.flv'
main debug: looking for access module: 2 candidates
filesystem debug: opening file `D:\All Video Recordings\GETFLV Downloads\Austin City Limits - Willie Nelson - Pilot Episode 1974.mp4.flv'
main debug: using access module "filesystem"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: Using AStream*Stream
main debug: pre buffering
main debug: received first data after 0 ms
main debug: pre-buffering done 1024 bytes in 0s - 1000000 KiB/s
main debug: looking for stream_filter module: 2 candidates
main debug: no stream_filter module matching "any" could be loaded
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for stream_filter module: 1 candidate
main debug: using stream_filter module "stream_filter_record"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: creating demux: access='file' demux='' path='D:\All Video Recordings\GETFLV Downloads\Austin City Limits - Willie Nelson - Pilot Episode 1974.mp4.flv'
main debug: looking for demux module: 50 candidates
lua debug: Trying Lua scripts in C:\Users\John\AppData\Roaming\vlc\lua\playlist
lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\playlist
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\anevia_streams.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\anevia_xml.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\appletrailers.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\bbc_co_uk.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\break.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\canalplus.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\cue.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\dailymotion.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\france2.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\googlevideo.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\jamendo.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\joox.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\katsomo.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\koreus.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\lelombrik.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\megavideo.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\metacafe.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\mpora.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\pinkbike.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\rockbox_fm_presets.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\vimeo.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\youtube.lua
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\playlist\youtube_homepage.lua
avcodec debug: detected format: flv
main debug: selecting program id=0
avcodec debug: adding es: video codec = h264
avcodec debug: adding es: audio codec = mp4a
avcodec debug: AVFormat supported stream
avcodec debug: - format = flv (FLV format)
avcodec debug: - start time = 0
avcodec debug: - duration = 3566933000
main debug: using demux module "avcodec"
main debug: TIMER module_need() : 28.000 ms - Total 28.000 ms / 1 intvls (Avg 28.000 ms)
main debug: looking for a subtitle file in D:\All Video Recordings\GETFLV Downloads\
main debug: looking for packetizer module: 21 candidates
main debug: using packetizer module "packetizer_h264"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: thread started
main debug: thread (decoder) created at priority 0 (../.././src/input/decoder.c:301)
main debug: looking for packetizer module: 21 candidates
packetizer_mpeg4audio debug: running MPEG4 audio packetizer
packetizer_mpeg4audio debug: AAC 44100Hz 1024 samples/frame
main debug: using packetizer module "packetizer_mpeg4audio"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: thread started
main debug: thread (decoder) created at priority 2 (../.././src/input/decoder.c:301)
main debug: starting in async mode
main debug: looking for meta reader module: 2 candidates
lua debug: Trying Lua scripts in C:\Users\John\AppData\Roaming\vlc\lua\meta\reader
lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\reader
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\reader\filename.lua
main debug: no meta reader module matching "any" could be loaded
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: `file:///D:/All%20Video%20Recordings/GETFLV%20Downloads/Austin%20City%20Limits%20-%20Willie%20Nelson%20-%20Pilot%20Episode%201974.mp4.flv' successfully opened
main debug: Buffering 0%
main debug: switching to sync mode
main debug: adding a new sout input (sout_input:026ad148)
main debug: Buffering 7%
stream_out_transcode debug: not transcoding a stream (fcc=`mp4a')
main debug: Buffering 15%
stream_out_duplicate debug: duplicated a new stream codec=mp4a (es=1 group=0)
main debug: Buffering 23%
main debug: adding a new input
main debug: Buffering 31%
mux_ts debug: adding input codec=mp4a pid=68
main debug: Buffering 38%
mux_ts debug: new PCR PID is 68
stream_out_duplicate debug: - added for output 0
main debug: Buffering 46%
main debug: Buffering 54%
main debug: Buffering 62%
main debug: Buffering 69%
main debug: Buffering 77%
main debug: looking for decoder module: 34 candidates
main debug: Buffering 85%
main debug: Buffering 93%
main debug: Stream buffering done (302 ms in 0 ms)
main debug: using decoder module "faad"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for packetizer module: 21 candidates
packetizer_mpeg4audio debug: running MPEG4 audio packetizer
packetizer_mpeg4audio debug: AAC 44100Hz 1024 samples/frame
main debug: using packetizer module "packetizer_mpeg4audio"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: thread started
main debug: thread (decoder) created at priority 2 (../.././src/input/decoder.c:301)
stream_out_duplicate debug: - added for output 1
main debug: Decoder buffering done in 1 ms
faad warning: decoded zero sample
main debug: reusing aout
main debug: looking for audio output module: 4 candidates
aout_directx debug: Opening DirectSound Audio Output
aout_directx debug: found device: Primary Sound Driver
aout_directx debug: found device: Speakers (Realtek High Definition Audio)
aout_directx debug: found device: Speakers (PlayOn Virtual Audio Device)
aout_directx debug: found device: (Realtek High Definition Audio)
aout_directx debug: device supports 2 channels (DEFAULT!)
aout_directx debug: device supports 1 channel
aout_directx debug: Windows says your SpeakerConfig is stereo
aout_directx debug: creating DirectSoundThread
main debug: thread started
main debug: thread (DirectSound Notification Thread) created at priority 15 (../../.././modules/audio_output/directx.c:321)
aout_directx debug: DirectSoundThread ready
main debug: using audio output module "aout_directx"
main debug: TIMER module_need() : 25.000 ms - Total 25.000 ms / 1 intvls (Avg 25.000 ms)
main debug: output 's16l' 44100 Hz Stereo frame=1 samples/4 bytes
main debug: mixer 'f32l' 44100 Hz Stereo frame=1 samples/8 bytes
main debug: filter(s) 'f32l'->'s16l' 44100 Hz->44100 Hz Stereo->Stereo
main debug: looking for audio filter module: 14 candidates
audio_format debug: f32l->s16l, bits per sample: 32->16
main debug: using audio filter module "audio_format"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: found a filter for the whole conversion
main debug: looking for audio mixer module: 3 candidates
main debug: using audio mixer module "float32_mixer"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: input 'f32l' 44100 Hz Stereo frame=1 samples/8 bytes
main debug: looking for audio filter module: 1 candidate
scaletempo debug: format: 44100 rate, 2 nch, 4 bps, fl32
scaletempo debug: params: 30 stride, 0.200 overlap, 14 search
scaletempo debug: 1.000 scale, 1323.000 stride_in, 1323 stride_out, 1059 standing, 264 overlap, 617 search, 2204 queue, fl32 mode
main debug: using audio filter module "scaletempo"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: filter(s) 'f32l'->'f32l' 48510 Hz->44100 Hz Stereo->Stereo
main debug: looking for audio filter module: 14 candidates
bandlimited_resampler debug: f32l/48510KHz/2->f32l/44100KHz/2
main debug: using audio filter module "bandlimited_resampler"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: found a filter for the whole conversion
main warning: output date isn't PTS date, requesting resampling (44000)
main warning: buffer is 44277 late, triggering upsampling
main debug: control type=1

[jhb50]

As further input on this inability of VLC to convert AVC/AAC.flv files to any other format , be advised that the following commands will perform the conversions of avc/aac.flv files correctly so there must be something broken in the VLC to ffmpeg encoder interface, particularly when VLC even fails to convert to .mp4 using copies of the video and audio streams.

ffmpeg.exe" -i "INPUT.flv" -f dvd -target ntsc-dvd -r 29.97 -s 720x480 -aspect 4:3 -b 8000kb -mbd rd -trellis -mv0 -cmp 0 -subcmp 2 -ac 2 "OUTPUT.mpg"

ffmpeg.exe" -i "INPUT.flv" -vcodec copy -acodec copy -f mp4 "OUTPUT.mp4"

[jhb50]

and More info:

I now find that even though ffmpeg can convert the avc/aac.flv file to an avc/aac.mp4 file which VLC can play. When VLC streams that file only the video will play but the audio will not play. This is the exact opposite of what happens when I stream the avc/aac.flv file directly in VLC. So it leaves me confused as to where the problem is., but it looks like the audio plays a part,

If I use ffmpeg to transcode the audio to ac3 and create an avc/ac3.mp4 file, VLC will play it and stream it successfully. I am now using this as a work around in my universal streaming solution for the WII viewtopic.php?f=14&t=76934 . If the .flv file contains an avc stream (per mediainfo), copy the video and transcode the audio to ac3 in .mp4 container with ffmpeg (Takes about 1 minute for 30 min video) and then transcode the avc on the fly as it streams. Best I can do until it is fixed.

I've added all this to 2850.

[VLC_help]

You shouldn't raise ticket priority to highest unless it is critical security bug.

[jhb50]

Thanks for that info...backed off to high.