static encoder_t *CreateEncoder( vlc_object_t *p_this, video_format_t *fmt_in,
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_Init( &p_enc->fmt_in, VIDEO_ES, fmt_in->i_chroma );
p_enc->fmt_in.video = *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_Init( &p_enc->fmt_out, VIDEO_ES, fmt_out->i_chroma );
p_enc->fmt_out.video = *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;
}
static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
sout_stream_id_t *id;
id = calloc( 1, sizeof( sout_stream_id_t ) );
if( !id )
goto error;
id->id = NULL;
id->p_decoder = NULL;
id->p_encoder = NULL;
/* Create decoder object */
id->p_decoder = vlc_object_create( p_stream, sizeof( decoder_t ) );
if( !id->p_decoder )
goto error;
id->p_decoder->p_module = NULL;
id->p_decoder->fmt_in = *p_fmt;
id->p_decoder->b_pace_control = true;
/* Create encoder object */
id->p_encoder = sout_EncoderCreate( p_stream );
if( !id->p_encoder )
goto error;
id->p_encoder->p_module = NULL;
/* Create destination format */
es_format_Init( &id->p_encoder->fmt_out, p_fmt->i_cat, 0 );
id->p_encoder->fmt_out.i_id = p_fmt->i_id;
id->p_encoder->fmt_out.i_group = p_fmt->i_group;
if( p_sys->psz_alang )
id->p_encoder->fmt_out.psz_language = strdup( p_sys->psz_alang );
else if( p_fmt->psz_language )
id->p_encoder->fmt_out.psz_language = strdup( p_fmt->psz_language );
bool success;
if( p_fmt->i_cat == AUDIO_ES && (p_sys->i_acodec || p_sys->psz_aenc) )
success = transcode_audio_add(p_stream, p_fmt, id);
else if( p_fmt->i_cat == VIDEO_ES && (p_sys->i_vcodec || p_sys->psz_venc) )
success = transcode_video_add(p_stream, p_fmt, id);
else if( ( p_fmt->i_cat == SPU_ES ) &&
( p_sys->i_scodec || p_sys->psz_senc || p_sys->b_soverlay ) )
success = transcode_spu_add(p_stream, p_fmt, id);
else if( !p_sys->b_osd && (p_sys->i_osdcodec != 0 || p_sys->psz_osdenc) )
success = transcode_osd_add(p_stream, p_fmt, id);
else
{
msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
(char*)&p_fmt->i_codec );
id->id = sout_StreamIdAdd( p_stream->p_next, p_fmt );
id->b_transcode = false;
success = id->id;
}
if(!success)
goto error;
return id;
error:
if( id )
{
if( id->p_decoder )
{
vlc_object_release( id->p_decoder );
id->p_decoder = NULL;
}
if( id->p_encoder )
{
es_format_Clean( &id->p_encoder->fmt_out );
vlc_object_release( id->p_encoder );
id->p_encoder = NULL;
}
free( id );
}
return NULL;
}
