int Open( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t*)p_this;
filter_sys_t *p_sys;
const vlc_fourcc_t fourcc = p_filter->fmt_in.video.i_chroma;
const vlc_chroma_description_t *chroma = vlc_fourcc_GetChromaDescription( fourcc );
if( chroma == NULL || chroma->pixel_size > 2 )
{
notsupp:
msg_Err( p_filter, "unsupported chroma %4.4s", (char*)&fourcc );
return VLC_EGENERIC;
}
unsigned pixel_size = chroma->pixel_size;
bool packed = false;
if( chroma->plane_count != 3 )
{
packed = true;
switch( fourcc )
{
case VLC_CODEC_YUYV:
case VLC_CODEC_UYVY:
case VLC_CODEC_YVYU:
case VLC_CODEC_VYUY:
case VLC_CODEC_NV12:
case VLC_CODEC_NV21:
pixel_size = 1;
break;
default:
goto notsupp;
}
}
assert( vlc_fourcc_IsYUV( fourcc ) );
/* */
p_sys = p_filter->p_sys = malloc( sizeof( *p_sys ) );
if( !p_sys )
return VLC_ENOMEM;
p_sys->chroma = chroma;
config_ChainParse( p_filter, FILTER_CFG_PREFIX, ppsz_filter_options,
p_filter->p_cfg );
char *psz_mode = var_InheritString( p_filter, FILTER_CFG_PREFIX "mode" );
SetFilterMethod( p_filter, psz_mode, packed );
free( psz_mode );
for( int i = 0; i < METADATA_SIZE; i++ )
{
p_sys->meta.pi_date[i] = VLC_TS_INVALID;
p_sys->meta.pi_nb_fields[i] = 2;
p_sys->meta.pb_top_field_first[i] = true;
}
p_sys->i_frame_offset = 0; /* start with default value (first-ever frame
cannot have offset) */
for( int i = 0; i < HISTORY_SIZE; i++ )
p_sys->pp_history[i] = NULL;
IVTCClearState( p_filter );
#if defined(CAN_COMPILE_C_ALTIVEC)
if( pixel_size == 1 && vlc_CPU_ALTIVEC() )
p_sys->pf_merge = MergeAltivec;
else
#endif
#if defined(CAN_COMPILE_SSE2)
if( vlc_CPU_SSE2() )
{
p_sys->pf_merge = pixel_size == 1 ? Merge8BitSSE2 : Merge16BitSSE2;
p_sys->pf_end_merge = EndMMX;
}
else
#endif
#if defined(CAN_COMPILE_MMXEXT)
if( pixel_size == 1 && vlc_CPU_MMXEXT() )
{
p_sys->pf_merge = MergeMMXEXT;
p_sys->pf_end_merge = EndMMX;
}
else
#endif
#if defined(CAN_COMPILE_3DNOW)
if( pixel_size == 1 && vlc_CPU_3dNOW() )
{
p_sys->pf_merge = Merge3DNow;
p_sys->pf_end_merge = End3DNow;
}
else
#endif
#if defined(CAN_COMPILE_ARM)
if( vlc_CPU_ARM_NEON() )
p_sys->pf_merge = pixel_size == 1 ? merge8_arm_neon : merge16_arm_neon;
else
if( vlc_CPU_ARMv6() )
p_sys->pf_merge = pixel_size == 1 ? merge8_armv6 : merge16_armv6;
else
#endif
{
p_sys->pf_merge = pixel_size == 1 ? Merge8BitGeneric : Merge16BitGeneric;
#if defined(__i386__) || defined(__x86_64__)
p_sys->pf_end_merge = NULL;
#endif
}
/* */
if( p_sys->i_mode == DEINTERLACE_PHOSPHOR )
{
int i_c420 = var_GetInteger( p_filter,
FILTER_CFG_PREFIX "phosphor-chroma" );
if( i_c420 != PC_LATEST && i_c420 != PC_ALTLINE &&
i_c420 != PC_BLEND && i_c420 != PC_UPCONVERT )
{
msg_Dbg( p_filter, "Phosphor 4:2:0 input chroma mode not set"\
"or out of range (valid: 1, 2, 3 or 4), "\
"using default" );
i_c420 = PC_ALTLINE;
}
msg_Dbg( p_filter, "using Phosphor 4:2:0 input chroma mode %d",
i_c420 );
/* This maps directly to the phosphor_chroma_t enum. */
p_sys->phosphor.i_chroma_for_420 = i_c420;
int i_dimmer = var_GetInteger( p_filter,
FILTER_CFG_PREFIX "phosphor-dimmer" );
if( i_dimmer < 1 || i_dimmer > 4 )
{
msg_Dbg( p_filter, "Phosphor dimmer strength not set "\
"or out of range (valid: 1, 2, 3 or 4), "\
"using default" );
i_dimmer = 2; /* low */
}
msg_Dbg( p_filter, "using Phosphor dimmer strength %d", i_dimmer );
/* The internal value ranges from 0 to 3. */
p_sys->phosphor.i_dimmer_strength = i_dimmer - 1;
}
else
{
p_sys->phosphor.i_chroma_for_420 = PC_ALTLINE;
p_sys->phosphor.i_dimmer_strength = 1;
}
/* */
video_format_t fmt;
GetOutputFormat( p_filter, &fmt, &p_filter->fmt_in.video );
if( !p_filter->b_allow_fmt_out_change &&
( fmt.i_chroma != p_filter->fmt_in.video.i_chroma ||
fmt.i_height != p_filter->fmt_in.video.i_height ) )
{
Close( VLC_OBJECT(p_filter) );
return VLC_EGENERIC;
}
p_filter->fmt_out.video = fmt;
p_filter->fmt_out.i_codec = fmt.i_chroma;
p_filter->pf_video_filter = Deinterlace;
p_filter->pf_video_flush = Flush;
p_filter->pf_video_mouse = Mouse;
msg_Dbg( p_filter, "deinterlacing" );
return VLC_SUCCESS;
}
/*****************************************************************************
* OpenDecoder: probe the decoder and return score
*****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
decoder_sys_t *p_sys;
uint32_t i_accel = 0;
if( p_dec->fmt_in.i_codec != VLC_CODEC_MPGV )
return VLC_EGENERIC;
/* Select onl recognized original format (standard mpeg video) */
switch( p_dec->fmt_in.i_original_fourcc )
{
case VLC_FOURCC('m','p','g','1'):
case VLC_FOURCC('m','p','g','2'):
case VLC_FOURCC('m','p','g','v'):
case VLC_FOURCC('P','I','M','1'):
case VLC_FOURCC('h','d','v','2'):
break;
default:
if( p_dec->fmt_in.i_original_fourcc )
return VLC_EGENERIC;
break;
}
/* Allocate the memory needed to store the decoder's structure */
if( ( p_dec->p_sys = p_sys = calloc( 1, sizeof(*p_sys)) ) == NULL )
return VLC_ENOMEM;
/* Initialize the thread properties */
p_sys->p_mpeg2dec = NULL;
p_sys->p_synchro = NULL;
p_sys->p_info = NULL;
p_sys->i_current_pts = 0;
p_sys->i_previous_pts = 0;
p_sys->i_current_dts = 0;
p_sys->i_previous_dts = 0;
p_sys->i_sar_num = 0;
p_sys->i_sar_den = 0;
p_sys->b_garbage_pic = false;
p_sys->b_slice_i = false;
p_sys->b_second_field = false;
p_sys->b_skip = false;
p_sys->b_preroll = false;
DpbInit( p_dec );
p_sys->i_cc_pts = 0;
p_sys->i_cc_dts = 0;
p_sys->i_cc_flags = 0;
#if MPEG2_RELEASE >= MPEG2_VERSION (0, 5, 0)
p_dec->pf_get_cc = GetCc;
cc_Init( &p_sys->cc );
#endif
p_sys->p_gop_user_data = NULL;
p_sys->i_gop_user_data = 0;
#if defined( __i386__ ) || defined( __x86_64__ )
if( vlc_CPU_MMX() )
i_accel |= MPEG2_ACCEL_X86_MMX;
if( vlc_CPU_3dNOW() )
i_accel |= MPEG2_ACCEL_X86_3DNOW;
if( vlc_CPU_MMXEXT() )
i_accel |= MPEG2_ACCEL_X86_MMXEXT;
#elif defined( __powerpc__ ) || defined( __ppc__ ) || defined( __ppc64__ )
if( vlc_CPU_ALTIVEC() )
i_accel |= MPEG2_ACCEL_PPC_ALTIVEC;
#elif defined(__arm__)
# ifdef MPEG2_ACCEL_ARM
i_accel |= MPEG2_ACCEL_ARM;
# endif
# ifdef MPEG2_ACCEL_ARM_NEON
if( vlc_CPU_ARM_NEON() )
i_accel |= MPEG2_ACCEL_ARM_NEON;
# endif
/* TODO: sparc */
#else
/* If we do not know this CPU, trust libmpeg2's feature detection */
i_accel = MPEG2_ACCEL_DETECT;
#endif
/* Set CPU acceleration features */
mpeg2_accel( i_accel );
/* Initialize decoder */
p_sys->p_mpeg2dec = mpeg2_init();
if( p_sys->p_mpeg2dec == NULL)
{
msg_Err( p_dec, "mpeg2_init() failed" );
free( p_sys );
return VLC_EGENERIC;
}
p_sys->p_info = mpeg2_info( p_sys->p_mpeg2dec );
p_dec->pf_decode_video = DecodeBlock;
p_dec->pf_flush = Reset;
p_dec->fmt_out.i_cat = VIDEO_ES;
p_dec->fmt_out.i_codec = 0;
return VLC_SUCCESS;
}
