/*****************************************************************************
* OpenDeinterlace: probe the filter and return score
*****************************************************************************/
int OpenDeinterlace( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t*)p_this;
filter_sys_t *p_sys;
/* Check if we can handle that formats */
if( TestFfmpegChroma( -1, p_filter->fmt_in.i_codec ) != VLC_SUCCESS )
{
msg_Err( p_filter, "Failed to match chroma type" );
return VLC_EGENERIC;
}
/* Allocate the memory needed to store the decoder's structure */
if( ( p_filter->p_sys = p_sys =
(filter_sys_t *)malloc(sizeof(filter_sys_t)) ) == NULL )
{
return VLC_EGENERIC;
}
/* Misc init */
p_filter->fmt_in.video.i_chroma = p_filter->fmt_in.i_codec;
if( GetFfmpegChroma( &p_sys->i_src_ffmpeg_chroma, p_filter->fmt_in.video ) != VLC_SUCCESS )
{
msg_Err( p_filter, "Failed to match chroma type" );
return VLC_EGENERIC;
}
p_filter->pf_video_filter = Deinterlace;
msg_Dbg( p_filter, "deinterlacing" );
/* libavcodec needs to be initialized for some chroma conversions */
InitLibavcodec(p_this);
return VLC_SUCCESS;
}
/*****************************************************************************
* ffmpeg_CopyPicture: copy a picture from ffmpeg internal buffers to a
* picture_t structure (when not in direct rendering mode).
*****************************************************************************/
static void ffmpeg_CopyPicture( decoder_t *p_dec,
picture_t *p_pic, AVFrame *p_ff_pic )
{
decoder_sys_t *p_sys = p_dec->p_sys;
if( p_sys->p_va )
{
vlc_va_Extract( p_sys->p_va, p_pic, p_ff_pic );
}
else if( TestFfmpegChroma( p_sys->p_context->pix_fmt, -1 ) == VLC_SUCCESS )
{
int i_plane, i_size, i_line;
uint8_t *p_dst, *p_src;
int i_src_stride, i_dst_stride;
for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
{
p_src = p_ff_pic->data[i_plane];
p_dst = p_pic->p[i_plane].p_pixels;
i_src_stride = p_ff_pic->linesize[i_plane];
i_dst_stride = p_pic->p[i_plane].i_pitch;
i_size = __MIN( i_src_stride, i_dst_stride );
for( i_line = 0; i_line < p_pic->p[i_plane].i_visible_lines;
i_line++ )
{
vlc_memcpy( p_dst, p_src, i_size );
p_src += i_src_stride;
p_dst += i_dst_stride;
}
}
}
else
{
msg_Err( p_dec, "don't know how to convert chroma %i",
p_sys->p_context->pix_fmt );
p_dec->b_error = 1;
}
}
