The source device is the Panasonic e-Wear SV-AV20/30 tiny camera. Makes asf mpeg4 files. Video is decoded fine thus far (the camera is not high- performance so there are dropped frames and occasional weirdness). Audio is not. Audio is G.726. format is 0x45 (69) clsid is 094d04a1-9bf0-4343-867d-6ff0c6b975d4 The friendly name was "Sharp G.726 Audio" The driver filename is "scg726.acm" Fourcc not located in registry (nothing resembling what was described on the codec import page was to be found... I'm no regedit pro, though) There was one other instance of a clsid associated with the file, which is listed here just in case as 52003641-6800-11D2-9cf9-00c04fcb385a Files uploaded: video5.asf (as used to make mplayer output below) scg726.acm (as installed from product CD) email.txt (this email) md5sum: dc4b2f21968ac6e7e6c8a4417ed0d85c scg726.acm 7d84d3c64869777f55cad1e0d434986d video5.asf files at _f_t_p_:_/_/_f_t_p_._m_p_l_a_y_e_r_h_q_._h_u_/_M_P_l_a_y_e_r_/_i_n_c_o_m_i_n_g_/_s_h_a_r_p_-_g_._7_2_6/ -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Dropped it in and tried it just to check. The audio is properly identified (? the sample rate and channel count look right), but video holds at the first frame, no audio plays, and 'q' bails out like normal.: ---------------------------------------------------------- audiocodec g726 info "Sharp G.726 Audio" status working format 0x45 driver acm dll "scg726.acm" ---------------------------------------------------------- MPlayer 1.0pre2-3.3.2 (C) 2000-2003 MPlayer Team CPU: Intel Celeron 2/Pentium III Coppermine,Geyserville 802.2 MHz (Family: 6, Stepping: 3) Detected cache-line size is 32 bytes CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 0 Compiled for x86 CPU with extensions: MMX MMX2 SSE [...] Playing video5.asf ASF file format detected. VIDEO: [MP4S] 320x240 24bpp Clip info: comments: Panasonic SV-AV30 ========================================================================== Opening audio decoder: [acm] Win32/ACM decoders Loading codec DLL: 'scg726.acm' Loaded DLL driver scg726.acm AUDIO: 8000 Hz, 1 ch, 16 bit (0x10), ratio: 4000->16000 (32.0 kbit) Selected audio codec: [g726] afm:acm (Sharp G.726 Audio) ========================================================================== vo: X11 running at 1600x1200 with depth 16 and 16 bpp (":0.0" => local display) Disabling DPMS ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffodivx] vfm:ffmpeg (FFmpeg MPEG-4) ========================================================================== Checking audio filter chain for 8000Hz/1ch/16bit -> 8000Hz/1ch/16bit... AF_pre: af format: 2 bps, 1 ch, 8000 hz, little endian signed int AF_pre: 8000Hz 1ch Signed 16-bit (Little-Endian) AO: [oss] 8000Hz 1ch Signed 16-bit (Little-Endian) (2 bps) Building audio filter chain for 8000Hz/1ch/16bit -> 8000Hz/1ch/16bit... Starting playback... VDec: vo config request - 320 x 240 (preferred csp: Planar YV12) VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1.33:1 - prescaling to correct movie aspect. VO: [xv] 320x240 => 320x240 Planar YV12 Total Unfree 0 bytes cnt 0 [(nil),0].006 3/ 3 0% 0% 0.0% 0 0 0% Successfully enabled DPMS