static filter_t *CreateFilter( vlc_object_t *p_this, const es_format_t *p_fmt_in,
vlc_fourcc_t fmt_out )
{
filter_t *p_filter;
p_filter = vlc_object_create( p_this, sizeof(filter_t) );
if (unlikely(p_filter == NULL))
return NULL;
p_filter->owner.video.buffer_new = (picture_t *(*)(filter_t *))video_new_buffer;
es_format_InitFromVideo( &p_filter->fmt_in, &p_fmt_in->video );
es_format_InitFromVideo( &p_filter->fmt_out, &p_fmt_in->video );
p_filter->fmt_in.i_codec = p_filter->fmt_in.video.i_chroma = VLC_CODEC_D3D11_OPAQUE;
p_filter->fmt_out.i_codec = p_filter->fmt_out.video.i_chroma = fmt_out;
p_filter->p_module = module_need( p_filter, "video filter2", NULL, false );
if( !p_filter->p_module )
{
msg_Dbg( p_filter, "no video filter found" );
DeleteFilter( p_filter );
return NULL;
}
return p_filter;
}
static decoder_t *CreateDecoder( vlc_object_t *p_this, const video_format_t *fmt )
{
decoder_t *p_dec;
p_dec = vlc_custom_create( p_this, sizeof( *p_dec ), "image decoder" );
if( p_dec == NULL )
return NULL;
p_dec->p_module = NULL;
es_format_InitFromVideo( &p_dec->fmt_in, fmt );
es_format_Init( &p_dec->fmt_out, VIDEO_ES, 0 );
p_dec->b_frame_drop_allowed = false;
p_dec->pf_vout_format_update = video_update_format;
p_dec->pf_vout_buffer_new = video_new_buffer;
/* Find a suitable decoder module */
p_dec->p_module = module_need( p_dec, "video decoder", "$codec", false );
if( !p_dec->p_module )
{
msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'. "
"VLC probably does not support this image format.",
(char*)&p_dec->fmt_in.i_codec );
DeleteDecoder( p_dec );
return NULL;
}
return p_dec;
}
static encoder_t *CreateEncoder( vlc_object_t *p_this, const video_format_t *fmt_in,
const video_format_t *fmt_out )
{
encoder_t *p_enc;
p_enc = sout_EncoderCreate( p_this );
if( p_enc == NULL )
return NULL;
p_enc->p_module = NULL;
es_format_InitFromVideo( &p_enc->fmt_in, fmt_in );
if( p_enc->fmt_in.video.i_visible_width == 0 ||
p_enc->fmt_in.video.i_visible_height == 0 ||
p_enc->fmt_out.video.i_visible_width == 0 ||
p_enc->fmt_out.video.i_visible_height == 0 )
{
if( fmt_out->i_width > 0 && fmt_out->i_height > 0 )
{
p_enc->fmt_in.video.i_width = fmt_out->i_width;
p_enc->fmt_in.video.i_height = fmt_out->i_height;
if( fmt_out->i_visible_width > 0 &&
fmt_out->i_visible_height > 0 )
{
p_enc->fmt_in.video.i_visible_width = fmt_out->i_visible_width;
p_enc->fmt_in.video.i_visible_height = fmt_out->i_visible_height;
}
else
{
p_enc->fmt_in.video.i_visible_width = fmt_out->i_width;
p_enc->fmt_in.video.i_visible_height = fmt_out->i_height;
}
}
} else if( fmt_out->i_sar_num && fmt_out->i_sar_den &&
fmt_out->i_sar_num * fmt_in->i_sar_den !=
fmt_out->i_sar_den * fmt_in->i_sar_num )
{
p_enc->fmt_in.video.i_width =
fmt_in->i_sar_num * (int64_t)fmt_out->i_sar_den * fmt_in->i_width /
fmt_in->i_sar_den / fmt_out->i_sar_num;
p_enc->fmt_in.video.i_visible_width =
fmt_in->i_sar_num * (int64_t)fmt_out->i_sar_den *
fmt_in->i_visible_width / fmt_in->i_sar_den / fmt_out->i_sar_num;
}
p_enc->fmt_in.video.i_frame_rate = 25;
p_enc->fmt_in.video.i_frame_rate_base = 1;
es_format_InitFromVideo( &p_enc->fmt_out, fmt_out );
p_enc->fmt_out.video.i_width = p_enc->fmt_in.video.i_width;
p_enc->fmt_out.video.i_height = p_enc->fmt_in.video.i_height;
/* Find a suitable decoder module */
p_enc->p_module = module_need( p_enc, "encoder", NULL, false );
if( !p_enc->p_module )
{
msg_Err( p_enc, "no suitable encoder module for fourcc `%4.4s'.\n"
"VLC probably does not support this image format.",
(char*)&p_enc->fmt_out.i_codec );
DeleteEncoder( p_enc );
return NULL;
}
p_enc->fmt_in.video.i_chroma = p_enc->fmt_in.i_codec;
return p_enc;
}
