It seems that this problem was sorted out on Gnash 0.8.10

http://www.mediafire.com/download.php?qxyi2pvmp2i4byj
This is a video result of sync-sound.swf from Gnash 0.8.10
(You'll notice that it beeps as clock's hand reaches around 12 o'clock now)



I also tested on another flash 'movie' that mainly relied on this feature too:

Tarboy (Flash 9)
http://www.newgrounds.com/portal/view/509092
(http://uploads.ungrounded.net/509000/509092_Tarboy_FP9___80_KBPS.swf)

http://www.mediafire.com/download.php?7z3t6r3nvt8rt4k
(Before) This is a video result from Gnash 0.8.9
You will notice that animation was out-of-sync, especially after the "Tarboy" title, that sound was obviously played ahead of the animation.

http://www.mediafire.com/download.php?iyqkb0tjk2doxwt
(After) This is a video result from Gnash 0.8.10
You will notice that animation was in sync with the audio.



I have also checked that MS Paint Adventure movie mentioned on the original submission, which had been out-of-sync on Gnash 0.8.9, was played properly on Gnash 0.8.10 as well.


Gnash 0.8.10: gnash_0.8.10-1~lenny (from getgnash.org APT repository)
Gnash 0.8.9: gnash_0.8.9-1~lenny (from getgnash.org APT repository too)
System: Debian GNU/Linux 5.0 Lenny on i386

I've tried to dump my test file with libming-0.4.3's listswf. From the result, it should be a real stream sound. (If judging from a presence of SWF_SOUNDSTREAMBLOCK)

These are snippets from my sync-sound.swf's listswf output (line 1-25 and 14218-14227), full output also attached.


File version: 7
File size: 99370
Frame size: (0,12800)x(0,9600)
Frame rate: 48.000000 / sec.
Total frames: 480

Offset: 21 (0x0015)
Block type: 9 (SWF_SETBACKGROUNDCOLOR)
Block length: 3

 RGBA: (ff,ff,ff,ff)

Offset: 26 (0x001a)
Block type: 18 (SWF_SOUNDSTREAMHEAD)
Block length: 6

  PlaybackSoundRate 22 kHz
  PlaybackSoundSize 16 bit
  PlaybackSoundType stereo
  StreamSoundCompression MP3
  StreamSoundRate 22 kHz
  StreamSoundSize 16 bit
  StreamSoundType stereo
  StreamSoundSampleCount 459
  LatencySeek 1633

....<Output Cutted>....

Offset: 13260 (0x33cc)
Block type: 19 (SWF_SOUNDSTREAMBLOCK)
Block length: 836

  SampleCount 2304
  Mp3: SeekSamples 1633

Offset: 14102 (0x3716)
Block type: 1 (SWF_SHOWFRAME)
Block length: 0


Sorry for my mistake in bug #33323, that one is actually using "Sync: Start".

Note: using listswf from libming 0.4.3 source release on Debian GNU/Linux 5.0 Lenny

(file #23457)

Hello, I've created flash file that's likely to expose
this problem; by utilizing animation heavily, using 48fps, and embed sound
in timeline as "Sync: Stream", using Macromedia Flash MX 2004 (Flash 7).

http://www.mediafire.com/?rl4vgrikcs0vwjk
This is a 'correct' result from Macromedia Flash Player 7
(You'll notice that it beeps when clock's hand is around 12 o'clock.)

http://www.mediafire.com/?s1aasdq9swpb2un
This is a video result from Gnash
(You'll notice that beeps are completely unrelated to clock's hand movement.)

http://www.mediafire.com/?tw4bejz5o30splf
This is my test flash file (created from Macromedia Flash MX 2004), also attached here.


System: Debian GNU/Linux 5.0 Lenny
Gnash: gnash 0.8.9-1~lenny (from getgnash.org apt repository)

(file #23431)