fix 1074 (f622dfaa) · Commits · IVAS Codec Public Collaboration / IVAS Codec

lib_com/options.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -171,6 +171,7 @@

		#define NONBE_FIX_SBA_SIGNALING_BITS_B /* FhG: issue 1061: option B: signal sba order additionally in OSBA */

		#define NONBE_FIX_1074_NOBJ_SIGNAL_OMASA_LBR /* Nok: issue 1074 fixing number of objects signaling in OMASA low rate */
		/* ##################### End NON-BE switches ########################### */

		/* ################## End DEVELOPMENT switches ######################### */

+18 −0

Original line number	Diff line number	Diff line
		@@ -366,12 +366,30 @@ ivas_error ivas_dec_setup(

		if ( st_ivas->nchan_ism > 0 )
		{
		#ifdef NONBE_FIX_1074_NOBJ_SIGNAL_OMASA_LBR
		/* the input_ivas_format should be MASA_ISM_FORMAT, but we cannot initialize it now */
		/* info about the number of objects:
		'00' - MASA format at the encoder
		'01' - MASA_ISM_FORMAT at the encoder, with 4 objects
		'10' - MASA_ISM_FORMAT at the encoder, with 3 objects
		'11' - MASA_ISM_FORMAT at the encoder, with 1 or 2 objects
		reading if 3 or 4 object is performed later
		*/
		st_ivas->nchan_ism = 5 - st_ivas->nchan_ism;
		if ( st_ivas->nchan_transport == 1 && st_ivas->nchan_ism == 2 )
		{
		st_ivas->nchan_ism = 1;
		}
		/* for MASA_ISM_FORMAT at input the number of MASA transport channels is always 2 and the corresponding bit is not used here*/
		#else
		/* the input_ivas_format should be MASA_ISM_FORMAT, but we cannot initialize it now */
		if ( st_ivas->nchan_transport == 2 && st_ivas->nchan_ism == 3 )
		{
		st_ivas->nchan_ism = 4;
		}

		/* for MASA_ISM_FORMAT at input the number of MASA transport channels is always 2 */
		#endif
		st_ivas->nchan_transport = 2;
		element_mode_flag = 1;
		}

+10 −0

Original line number	Diff line number	Diff line
		@@ -249,6 +249,15 @@ ivas_error ivas_masa_decode(
		}
		}

		#ifdef NONBE_FIX_1074_NOBJ_SIGNAL_OMASA_LBR
		/* read 2 bits:
		'00' - MASA format at the encoder
		'01' - MASA_ISM_FORMAT at the encoder, with 4 object
		'10' - MASA_ISM_FORMAT at the encoder, with 3 objects
		'11' - MASA_ISM_FORMAT at the encoder, with 1 or 2 objects
		reading if 3 or 4 object is performed later
		*/
		#else
		/* read 2 bits:
		'00' - MASA format at the encoder
		'01' - MASA_ISM_FORMAT at the encoder, with 1 object
		@@ -256,6 +265,7 @@ ivas_error ivas_masa_decode(
		'11' - MASA_ISM_FORMAT at the encoder, with 3 or 4 objects
		reading if 3 or 4 object is performed later
		*/
		#endif
		byteBuffer = st->bit_stream[( st->next_bit_pos )--];
		byteBuffer = byteBuffer + 2 * st->bit_stream[( st->next_bit_pos )--];

+19 −0

Original line number	Diff line number	Diff line
		@@ -420,6 +420,13 @@ ivas_error ivas_masa_encode(
		{
		if ( ivas_format == MASA_ISM_FORMAT && ism_mode == ISM_MODE_NONE )
		{
		#ifdef NONBE_FIX_1074_NOBJ_SIGNAL_OMASA_LBR
		/* use the MASA number of transport channels bit to signal if there are 1 or 2 objects */
		if ( nchan_ism == 1 \|\| nchan_ism == 2 )
		{
		push_next_indice( hMetaData, nchan_ism - 1, MASA_TRANSP_BITS );
		}
		#else
		/* use the MASA number of transport channels bit to signal if there are 3 or 4 objects */
		if ( nchan_ism == 4 )
		{
		@@ -429,6 +436,7 @@ ivas_error ivas_masa_encode(
		{
		push_next_indice( hMetaData, 0, MASA_TRANSP_BITS );
		}
		#endif
		}
		else
		{
		@@ -440,6 +448,16 @@ ivas_error ivas_masa_encode(

		if ( ivas_format == MASA_ISM_FORMAT && ism_mode == ISM_MODE_NONE )
		{
		#ifdef NONBE_FIX_1074_NOBJ_SIGNAL_OMASA_LBR
		if ( nchan_ism >= 3 ) /* if 3 or 4 objects */
		{
		push_next_indice( hMetaData, 5 - nchan_ism, MASA_HEADER_BITS );
		}
		else
		{
		push_next_indice( hMetaData, 3, MASA_HEADER_BITS );
		}
		#else
		if ( nchan_ism <= 3 )
		{
		push_next_indice( hMetaData, nchan_ism, MASA_HEADER_BITS );
		@@ -448,6 +466,7 @@ ivas_error ivas_masa_encode(
		{
		push_next_indice( hMetaData, nchan_ism - 1, MASA_HEADER_BITS );
		}
		#endif
		hQMetaData->metadata_max_bits -= MASA_HEADER_BITS;
		}
		else