--- a/videoeditorengine/h263decoder/src/vdeti_mpeg.cpp Fri Jan 29 14:08:33 2010 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,114 +0,0 @@
-/*
-* Copyright (c) 2010 Ixonos Plc.
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of the "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - Initial contribution
-*
-* Contributors:
-* Ixonos Plc
-*
-* Description:
-* Input stream type determination.
-*
-*/
-
-
-
-
-/*
- * Includes
- */
-
-#include "h263dConfig.h"
-
-#include "debug.h"
-#include "sync.h"
-#include "vde.h"
-#include "vdemain.h"
-#include "mpegcons.h"
-
-#include "core.h"
-
-
-/*
- * Functions visible outside this module
- */
-
-/*
- * vdeDetermineStreamType
- *
- * Parameters:
- * hInstance instance data
- *
- * Function:
- * This function detects the stream type, looking at the start code
- * (h.263 vs. MPEG-4) and sets the flag "fMPEG4" which is
- * used for the configuration of the decoder.
- * In case of an MPEG-4 stream calls the Video Object Header and the VOL Header
- * decoding function to set initial parameters.
- *
- * Returns:
- * VDE_OK if the stream type could be detected and
- * it is supported
- * VDE_ERROR_HALTED if the stream type couldn't be detected or
- * the configuration is not supported
- * VDE_ERROR if unrecoverable bitbuffer error occered
- *
- */
-int vdeDetermineStreamType(vdeHInstance_t hInstance, CMPEG4Transcoder *hTranscoder)
-{
- vdeInstance_t *vdeinstance = (vdeInstance_t *) hInstance;
- bibBuffer_t *inBuffer = vdeinstance->inBuffer;
-
- int numBitsGot,
- bitErrorIndication = 0;
- int16 error = 0;
- u_int32 bits;
-
- bits = bibShowBits(32, inBuffer, &numBitsGot, &bitErrorIndication, &error);
- if (error)
- return VDE_ERROR;
-
- /* If PSC */
- if ((bits >> 10) == 32) {
- vdeinstance->fMPEG4 = 0;
- }
-
- /* Else check for Visual Sequence, Visual Object or Video Object start code */
- else if ((bits == MP4_VOS_START_CODE) ||
- (bits == MP4_VO_START_CODE) ||
- ((bits >> MP4_VID_ID_CODE_LENGTH) == MP4_VID_START_CODE) ||
- ((bits >> MP4_VOL_ID_CODE_LENGTH) == MP4_VOL_START_CODE)) {
-
- vdeinstance->fMPEG4 = 1;
-
- if (vdcDecodeMPEGVolHeader(vdeinstance->vdcHInstance, inBuffer, hTranscoder) != 0)
- return VDE_ERROR;
-
- bits = bibShowBits(22, inBuffer, &numBitsGot, &bitErrorIndication, &error);
- if (error)
- return VDE_ERROR;
-
- /* Check if H.263 PSC follows the VOL header, in which case this is
- MPEG-4 with short header and is decoded as H.263 */
- if ( bits == 32 ) {
- vdeinstance->fMPEG4 = 0;
- }
-
- }
-
- /* Else no H.263 and no MPEG-4 start code detected -> let's try H.263,
- since MPEG-4 cannot anyway be decoded without starting header */
- else {
- vdeinstance->fMPEG4 = 0;
- }
-
- return VDE_OK;
-}
-
-// End of File