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Diffstat (limited to 'DOCS/tech/win32-codec-howto.txt')
| -rw-r--r-- | DOCS/tech/win32-codec-howto.txt | 43 |
1 files changed, 37 insertions, 6 deletions
diff --git a/DOCS/tech/win32-codec-howto.txt b/DOCS/tech/win32-codec-howto.txt index 81dfafca83..3346de47bb 100644 --- a/DOCS/tech/win32-codec-howto.txt +++ b/DOCS/tech/win32-codec-howto.txt @@ -25,17 +25,36 @@ Cannot find codec matching selected -vo and video format 0x55594648. It means your AVI is encoded with a codec which has the HFYU fourcc (HFYU = HuffYUV codec, DIV3 = DivX Low Motion, etc.). Now that you know this, you -have to find out which DLL Windows loads in order to play this file. In our -case, the 'system.ini' contains this information in a line that reads: +have to find out which DLL Windows loads in order to play this file. +You can find the vfw codec by searching the internet for e.g. VIDC.HFYU. + +In our case, the 'system.ini' also contains this information in a line that reads: VIDC.HFYU=huffyuv.dll -So you need the 'huffyuv.dll' file. Note that the audio codecs are -specified by the MSACM prefix: +So you need the 'huffyuv.dll' file. + + + +ACM Codecs: +~~~~~~~~~~~~ +MPlayer may fail at playing the audio in your file with this message: + +Cannot find codec for audio format 0x55. +Read DOCS/HTML/en/codecs.html! +Audio: no sound + +MPlayer calls this the TwoCC format identifier. From the TwoCC list we find: + +0x0055 MPEG-1 Layer 3 (MP3) + +If you are lucky, you can then just search the internet for "codec acm" +e.g. "mp3 acm". Or if the codec is already installed on Windows, +it will show up in the system.ini as: msacm.l3acm=L3codeca.acm -This is the MP3 codec. +Note that the audio codecs are specified by the MSACM prefix: @@ -53,7 +72,7 @@ New Method: Using Microsoft GraphEdit (fast) -- Get GraphEdit from either DirectX SDK or doom9. +- Get GraphEdit from the Microsoft SDK, DirectX SDK or doom9. - Start 'graphedit.exe'. - From the menu select "Graph -> Insert Filters". - Expand item "DirectShow Filters". @@ -86,3 +105,15 @@ Take a deep breath and start searching the registry... If searching fails, try enabling all the checkboxes. You may have false hits, but you may get lucky... + + + +Tips: +~~~~~~~ +If you get an error loading a new codec, it may need some more files to work. +Start the filemon utility before loading MPlayer to find out which dlls are +trying to be loaded. + +Your codec may load some external .dll libraries. If the codec is already +installed in Windows, run listdlls wmplayer.exe while Windows Media +Player is playing your file to find out which. |