if ( st != NULL )
{
char *pix_fmt = mlt_properties_get( properties, "pix_fmt" );
- double ar = mlt_properties_get_double( properties, "display_ratio" );
AVCodecContext *c = st->codec;
// Establish defaults from AVOptions
// Set options controlled by MLT
c->width = mlt_properties_get_int( properties, "width" );
c->height = mlt_properties_get_int( properties, "height" );
- c->sample_aspect_ratio = av_d2q( ar * c->height / c->width , 255);
c->time_base.num = mlt_properties_get_int( properties, "frame_rate_den" );
c->time_base.den = mlt_properties_get_int( properties, "frame_rate_num" );
c->pix_fmt = pix_fmt ? avcodec_get_pix_fmt( pix_fmt ) : PIX_FMT_YUV420P;
+ if ( codec_id == CODEC_ID_DVVIDEO )
+ {
+ // Compensate for FFmpeg's notion of DV aspect ratios, which are
+ // based upon a width of 704. Since we do not have a normaliser
+ // that crops (nor is cropping 720 wide ITU-R 601 video always desirable)
+ // we just coerce the values to facilitate a passive behaviour through
+ // the rescale normaliser when using equivalent producers and consumers.
+ // = display_aspect / (width * height)
+ double ar = mlt_properties_get_double( properties, "aspect_ratio" );
+ if ( ar == 8.0/9.0 ) // 4:3 NTSC
+ {
+ c->sample_aspect_ratio.num = 10;
+ c->sample_aspect_ratio.den = 11;
+ }
+ else if ( ar == 16.0/15.0 ) // 4:3 PAL
+ {
+ c->sample_aspect_ratio.num = 159;
+ c->sample_aspect_ratio.den = 54;
+ }
+ else if ( ar == 32.0/27.0 ) // 16:9 NTSC
+ {
+ c->sample_aspect_ratio.num = 40;
+ c->sample_aspect_ratio.den = 33;
+ }
+ else // 16:9 PAL
+ {
+ c->sample_aspect_ratio.num = 118;
+ c->sample_aspect_ratio.den = 81;
+ }
+ }
+ else if ( mlt_properties_get( properties, "aspect" ) )
+ {
+ double ar = mlt_properties_get_double( properties, "aspect" );
+ c->sample_aspect_ratio = av_d2q( ar * c->height / c->width , 255);
+ }
+ else
+ {
+ c->sample_aspect_ratio.num = mlt_properties_get_int( properties, "sample_aspect_num" );
+ c->sample_aspect_ratio.den = mlt_properties_get_int( properties, "sample_aspect_den" );
+ }
+
if ( mlt_properties_get_double( properties, "qscale" ) > 0 )
{
c->flags |= CODEC_FLAG_QSCALE;
// Check for audio codec overides
if ( acodec != NULL )
{
- AVCodec *p = first_avcodec;
- while( p != NULL )
- {
- if ( !strcmp( p->name, acodec ) && p->type == CODEC_TYPE_AUDIO )
- break;
- p = p->next;
- }
+ AVCodec *p = avcodec_find_encoder_by_name( acodec );
if ( p != NULL )
audio_codec_id = p->id;
else
// Check for video codec overides
if ( vcodec != NULL )
{
- AVCodec *p = first_avcodec;
- while( p != NULL )
- {
- if ( !strcmp( p->name, vcodec ) && p->type == CODEC_TYPE_VIDEO )
- break;
- p = p->next;
- }
+ AVCodec *p = avcodec_find_encoder_by_name( vcodec );
if ( p != NULL )
video_codec_id = p->id;
else