davinci: video.c: improvements for readability

Improvements for readability:
- Renamed p_sys->e to p_sys_>engine
- Renamed p_sys->d to p_sys->handle

modules/codec/davinci/video.c

@@ -52,8 +52,8 @@ static picture_t *DecodeVideoBlock( decoder_t *, block_t ** );
 struct decoder_sys_t
 {
     char *psz_ti_engine;
-    Engine_Handle e;
-    VIDDEC_Handle d;
+    Engine_Handle engine;
+    VIDDEC_Handle handle;
 
     XDM_BufDesc in;
     XDM_BufDesc out;
@@ -103,7 +103,7 @@ int OpenVideoDecoder( vlc_object_t *p_this )
     davinci_RuntimeInit( p_this );
 
     /* Create an engine handle */
-    p_sys->e = Engine_open( p_sys->psz_ti_engine, NULL /*&Engine_ATTRS*/, &err );
+    p_sys->engine = Engine_open( p_sys->psz_ti_engine, NULL /*&Engine_ATTRS*/, &err );
     if( err != Engine_EOK )
     {
         msg_Err( p_dec, "Error while opening engine `%s': %s",
@@ -148,8 +148,8 @@ int OpenVideoDecoder( vlc_object_t *p_this )
         goto error;
     }
 
-    p_sys->d = VIDDEC_create( p_sys->e, (String)psz_codec, &params );
-    if( !p_sys->d )
+    p_sys->handle = VIDDEC_create( p_sys->engine, (String)psz_codec, &params );
+    if( !p_sys->handle )
     {
         msg_Err( p_dec, "Failed to create video decoder (%s) for %s",
                  psz_codec, psz_namecodec );
@@ -172,7 +172,7 @@ int OpenVideoDecoder( vlc_object_t *p_this )
     return VLC_SUCCESS;
 
 error:
-    if( p_sys->e ) Engine_close( p_sys->e );
+    if( p_sys->engine ) Engine_close( p_sys->engine );
     free( p_sys->psz_ti_engine );
     free( p_sys );
     return VLC_EGENERIC;
@@ -187,10 +187,10 @@ void CloseVideoDecoder( vlc_object_t *p_this )
     decoder_sys_t *p_sys = p_dec->p_sys;
 
     /* Close our codec handle */
-    VIDDEC_delete( p_sys->d );
+    VIDDEC_delete( p_sys->handle );
 
     /* Close our engine handle */
-    Engine_close( p_sys->e );
+    Engine_close( p_sys->engine );
 
     /* Exit the codec engine */
     davinci_RuntimeExit( p_this );
@@ -247,7 +247,7 @@ static picture_t *DecodeVideoBlock( decoder_t *p_dec, block_t **pp_block )
 
     if( p_sys->in.numBufs == 0 || p_sys->out.numBufs == 0 )
     {
-        if( VIDDEC_control( p_sys->d, XDM_GETBUFINFO, &dparams, &status )
+        if( VIDDEC_control( p_sys->handle, XDM_GETBUFINFO, &dparams, &status )
             != VIDDEC_EOK )
         {
             msg_Err( p_dec, "Failed to get buffer info" );
@@ -279,7 +279,7 @@ static picture_t *DecodeVideoBlock( decoder_t *p_dec, block_t **pp_block )
     }
 
 #ifdef DAVINCI_DEBUG
-    if( VIDDEC_control( p_sys->d, XDM_GETSTATUS, &dparams, &status )
+    if( VIDDEC_control( p_sys->handle, XDM_GETSTATUS, &dparams, &status )
         != VIDDEC_EOK )
     {
         msg_Err( p_dec, "Failed to get decoder status" );
@@ -316,14 +316,14 @@ static picture_t *DecodeVideoBlock( decoder_t *p_dec, block_t **pp_block )
     out_args.size = sizeof( out_args );
 
     /* Decode the video */
-    if( VIDDEC_process( p_sys->d, &p_sys->in, &p_sys->out, &in_args, &out_args ) != VIDDEC_EOK )
+    if( VIDDEC_process( p_sys->handle, &p_sys->in, &p_sys->out, &in_args, &out_args ) != VIDDEC_EOK )
     {
         msg_Err( p_dec, "Video decoding failed: %s",
             davinci_GetExtendedError(out_args.extendedError ) );
         goto error;
     }
 
-    if( VIDDEC_control( p_sys->d, XDM_GETSTATUS, &dparams, &status ) != VIDDEC_EOK )
+    if( VIDDEC_control( p_sys->handle, XDM_GETSTATUS, &dparams, &status ) != VIDDEC_EOK )
     {
         msg_Err( p_dec, "Failed to get decoder status" );
         goto error;