This will be because each video provider library (see
PREFIX/directfb-1.0.0/interfaces/IDIrectFBVideoProvider/*.so) is loaded in
turn (dlopen).
Each of them have a Probe function. If Probe returns true then this Video
Provider is used. If Probe returns false the next one is loaded and it
repeats.
Once all have been tried and no Probe has returned true then you get the
error message you see.
I would check to see if
1.) you have some video providers built (see above path)
2.) If not build them (see configure options I believe)
hope it helps
Dan
kaka kaka wrote:
>
> Hi All,
>
> Given below is the example of directFB which runs a video file,
> But while running avi file using the sample code given below(it is
> attached
> also).
> I am getting the error message that " No (suitable) implementation found"
> more precisely, the following is the error message.
> "(#) DirectFBError [dfb-> CreateVideoProvider (dfb , argv[1],
> &videoprovider)] : No (suitable) implementation found "
>
> Can anybody explain why i am getting the error?
>
> Best Regards,
> kaka
>
>
>
>
>
>
>
> /*
>
> (c) Copyright 2000-2002 convergence integrated media GmbH.
>
> All rights reserved.
>
> Written by Denis Oliver Kropp <[EMAIL PROTECTED]>,
>
> Andreas Hundt <[EMAIL PROTECTED]> and
>
> Sven Neumann <[EMAIL PROTECTED]>.
>
> This file is subject to the terms and conditions of the MIT License:
>
> Permission is hereby granted, free of charge, to any person
>
> obtaining a copy of this software and associated documentation
>
> files (the "Software"), to deal in the Software without restriction,
>
> including without limitation the rights to use, copy, modify, merge,
>
> publish, distribute, sublicense, and/or sell copies of the Software,
>
> and to permit persons to whom the Software is furnished to do so,
>
> subject to the following conditions:
>
> The above copyright notice and this permission notice shall be
>
> included in all copies or substantial portions of the Software.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
>
> EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
>
> MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
>
> IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
>
> CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
>
> TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
>
> SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
>
> */
>
> #include <stdio.h>
>
> #include <stdlib.h>
>
> #include <unistd.h>
>
> #include <math.h>
>
> #include <directfb.h>
>
> static IDirectFB *dfb;
>
> static IDirectFBDisplayLayer *layer;
>
> static IDirectFBImageProvider *provider;
>
> static IDirectFBVideoProvider *videoprovider;
>
> static IDirectFBWindow *videowindow;
>
> static IDirectFBSurface *videosurface;
>
> static IDirectFBWindow *dfbwindow;
>
> static IDirectFBSurface *dfbsurface;
>
> static IDirectFBInputDevice *mouse;
>
> static IDirectFBInputDevice *keyboard;
>
> static IDirectFBEventBuffer *mouse_events;
>
> int err;
>
> /* macro for a safe call to DirectFB functions */
>
> #define DFBCHECK(x...) \
>
> { \
>
> err = x; \
>
> if (err != DFB_OK) { \
>
> fprintf( stderr, "%s <%d>:\n\t", __FILE__, __LINE__ ); \
>
> DirectFBErrorFatal( #x, err ); \
>
> } \
>
> }
>
>
>
> int main( int argc, char *argv[] )
>
> {
>
> DFBDisplayLayerConfig layer_config;
>
> DFBInputDeviceKeyState quit = DIKS_UP;
>
> DFBCHECK(DirectFBInit( &argc, &argv ));
>
> if (argc < 2) {
>
> fprintf(stderr, "%s: you must specify a video source\n", argv[0]);
>
> return 1;
>
> }
>
> DFBCHECK(DirectFBCreate( &dfb ));
>
> DFBCHECK(dfb->GetInputDevice( dfb, DIDID_MOUSE, &mouse ));
>
> DFBCHECK(dfb->GetInputDevice( dfb, DIDID_KEYBOARD, &keyboard ));
>
> DFBCHECK(mouse->CreateEventBuffer( mouse, &mouse_events ));
>
> DFBCHECK(dfb->GetDisplayLayer( dfb, DLID_PRIMARY, &layer ));
>
> {
>
> DFBSurfaceDescription sdsc;
>
> DFBWindowDescription desc;
>
> DFBCHECK(dfb->CreateVideoProvider( dfb, argv[1],
>
> &videoprovider ));
>
> videoprovider->GetSurfaceDescription( videoprovider, &sdsc );
>
>
>
> desc.flags = DWDESC_POSX | DWDESC_POSY | DWDESC_WIDTH | DWDESC_HEIGHT;
>
> desc.posx = 0;
>
> desc.posy = 0;
>
> desc.width = sdsc.width;
>
> desc.height = sdsc.height;
>
> DFBCHECK(layer->CreateWindow( layer, &desc, &videowindow ) );
>
> DFBCHECK(videowindow->GetSurface( videowindow, &videosurface ) );
>
> videowindow->SetOpacity( videowindow, 0xFF );
>
> DFBCHECK(videoprovider->PlayTo( videoprovider, videosurface,
>
> NULL, NULL, NULL ));
>
> }
>
> {
>
> DFBWindowDescription desc;
>
> desc.flags = DWDESC_POSX | DWDESC_POSY | DWDESC_WIDTH |
>
> DWDESC_HEIGHT | DWDESC_CAPS;
>
> desc.posx = 0;
>
> desc.posy = 20;
>
> desc.width = 275;//512;
>
> desc.height = 116;//145;
>
> desc.caps = DWCAPS_ALPHACHANNEL;
>
> DFBCHECK(layer->CreateWindow( layer, &desc, &dfbwindow ) );
>
> DFBCHECK(dfbwindow->GetSurface( dfbwindow, &dfbsurface ) );
>
> DFBCHECK(dfb->CreateImageProvider( dfb, DATADIR"/shot.png",
>
> &provider ));
>
> DFBCHECK(provider->RenderTo( provider, dfbsurface, NULL ));
>
> provider->Release( provider );
>
> dfbwindow->SetOpacity( dfbwindow, 0xFF );
>
> }
>
> layer->GetConfiguration( layer, &layer_config );
>
>
>
> while (quit == DIKS_UP) {
>
> DFBInputEvent ev;
>
> int movx = 0;
>
> int movy = 0;
>
> keyboard->GetKeyState( keyboard, DIKI_ESCAPE, &quit );
>
> while (mouse_events->GetEvent( mouse_events, DFB_EVENT(&ev) ) == DFB_OK) {
>
> if (ev.type == DIET_AXISMOTION) {
>
> switch (ev.axis) {
>
> case DIAI_X:
>
> movx += ev.axisrel;
>
> break;
>
> case DIAI_Y:
>
> movy += ev.axisrel;
>
> break;
>
> default:
>
> break;
>
> }
>
> } else
>
> if (ev.type == DIET_BUTTONRELEASE) {
>
> quit = DIKS_DOWN;
>
> }
>
> }
>
> {
>
> static int mode = 0;
>
> if (mode || 1) {
>
> static int wx = 0;
>
> static int wy = 0;
>
> static int dirx = 4;
>
> static int diry = 2;
>
> wx += dirx;
>
> wy += diry;
>
> if (wx >= layer_config.width - 768/2 || wx <= 0)
>
> dirx *= -1;
>
> if (wy >= layer_config.height - 576/2 || wy <= 0)
>
> diry *= -1;
>
> videowindow->Move( videowindow, dirx, diry );
>
> }
>
> else {
>
> static float w = 0;
>
> unsigned char r = sin(w)*128+127;
>
> unsigned char g = sin(w*0.3f)*128+127;
>
> unsigned char b = sin(w*0.5f)*128+127;
>
> layer->SetBackgroundColor( layer, r, g, b, 0 );
>
> w += 0.1f;
>
> }
>
> mode = !mode;
>
> }
>
> if (movx || movy)
>
> dfbwindow->Move( dfbwindow, movx, movy );
>
> }
>
> videoprovider->Release( videoprovider );
>
> dfbwindow->Release( dfbwindow );
>
> layer->Release( layer );
>
> dfb->Release( dfb );
>
> return 42;
>
> }
>
>
> _______________________________________________
> directfb-users mailing list
> [email protected]
> http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
>
>
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