Commit 5d3d5ee7 authored by Christophe Massiot's avatar Christophe Massiot

* modules/codec/libmpeg2.c, modules/packetizer/mpegvideo.c: Fixed wrong PTS

   and DTS for field pictures.
parent b1b72b63
...@@ -64,6 +64,7 @@ struct decoder_sys_t ...@@ -64,6 +64,7 @@ struct decoder_sys_t
vlc_bool_t b_after_sequence_header; /* is it the next frame after vlc_bool_t b_after_sequence_header; /* is it the next frame after
* the sequence header ? */ * the sequence header ? */
vlc_bool_t b_slice_i; /* intra-slice refresh stream */ vlc_bool_t b_slice_i; /* intra-slice refresh stream */
vlc_bool_t b_second_field;
vlc_bool_t b_preroll; vlc_bool_t b_preroll;
...@@ -143,6 +144,7 @@ static int OpenDecoder( vlc_object_t *p_this ) ...@@ -143,6 +144,7 @@ static int OpenDecoder( vlc_object_t *p_this )
p_sys->p_picture_to_destroy = NULL; p_sys->p_picture_to_destroy = NULL;
p_sys->b_garbage_pic = 0; p_sys->b_garbage_pic = 0;
p_sys->b_slice_i = 0; p_sys->b_slice_i = 0;
p_sys->b_second_field = 0;
p_sys->b_skip = 0; p_sys->b_skip = 0;
p_sys->b_preroll = VLC_FALSE; p_sys->b_preroll = VLC_FALSE;
...@@ -339,20 +341,7 @@ static picture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block ) ...@@ -339,20 +341,7 @@ static picture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
break; break;
case STATE_PICTURE_2ND: case STATE_PICTURE_2ND:
vout_SynchroNewPicture( p_sys->p_synchro, p_sys->b_second_field = 1;
p_sys->p_info->current_picture->flags & PIC_MASK_CODING_TYPE,
p_sys->p_info->current_picture->nb_fields,
0, 0, p_sys->i_current_rate,
p_sys->p_info->sequence->flags & SEQ_FLAG_LOW_DELAY );
if( p_sys->b_skip )
{
vout_SynchroTrash( p_sys->p_synchro );
}
else
{
vout_SynchroDecode( p_sys->p_synchro );
}
break; break;
case STATE_PICTURE: case STATE_PICTURE:
...@@ -408,8 +397,15 @@ static picture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block ) ...@@ -408,8 +397,15 @@ static picture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
p_sys->i_current_dts : p_sys->i_previous_dts ) : 0; p_sys->i_current_dts : p_sys->i_previous_dts ) : 0;
#endif #endif
/* If nb_fields == 1, it is a field picture, and it will be
* followed by another field picture for which we won't call
* vout_SynchroNewPicture() because this would have other
* problems, so we take it into account here.
* This kind of sucks, but I didn't think better. --Meuuh
*/
vout_SynchroNewPicture( p_sys->p_synchro, vout_SynchroNewPicture( p_sys->p_synchro,
p_sys->p_info->current_picture->flags & PIC_MASK_CODING_TYPE, p_sys->p_info->current_picture->flags & PIC_MASK_CODING_TYPE,
p_sys->p_info->current_picture->nb_fields == 1 ? 2 :
p_sys->p_info->current_picture->nb_fields, i_pts, i_dts, p_sys->p_info->current_picture->nb_fields, i_pts, i_dts,
p_sys->i_current_rate, p_sys->i_current_rate,
p_sys->p_info->sequence->flags & SEQ_FLAG_LOW_DELAY ); p_sys->p_info->sequence->flags & SEQ_FLAG_LOW_DELAY );
......
...@@ -118,6 +118,7 @@ struct decoder_sys_t ...@@ -118,6 +118,7 @@ struct decoder_sys_t
mtime_t i_interpolated_dts; mtime_t i_interpolated_dts;
mtime_t i_old_duration; mtime_t i_old_duration;
mtime_t i_last_ref_pts; mtime_t i_last_ref_pts;
vlc_bool_t b_second_field;
/* Number of pictures since last sequence header */ /* Number of pictures since last sequence header */
int i_seq_old; int i_seq_old;
...@@ -185,6 +186,7 @@ static int Open( vlc_object_t *p_this ) ...@@ -185,6 +186,7 @@ static int Open( vlc_object_t *p_this )
p_sys->i_interpolated_dts = 0; p_sys->i_interpolated_dts = 0;
p_sys->i_old_duration = 0; p_sys->i_old_duration = 0;
p_sys->i_last_ref_pts = 0; p_sys->i_last_ref_pts = 0;
p_sys->b_second_field = 0;
p_sys->b_discontinuity = VLC_FALSE; p_sys->b_discontinuity = VLC_FALSE;
p_sys->b_sync_on_intra_frame = var_CreateGetBool( p_dec, "packetizer-mpegvideo-sync-iframe" ); p_sys->b_sync_on_intra_frame = var_CreateGetBool( p_dec, "packetizer-mpegvideo-sync-iframe" );
...@@ -433,14 +435,16 @@ static block_t *ParseMPEGBlock( decoder_t *p_dec, block_t *p_frag ) ...@@ -433,14 +435,16 @@ static block_t *ParseMPEGBlock( decoder_t *p_dec, block_t *p_frag )
else else
{ {
/* Correct interpolated dts when we receive a new pts/dts */ /* Correct interpolated dts when we receive a new pts/dts */
if( p_sys->i_last_ref_pts > 0 ) if( p_sys->i_last_ref_pts > 0 && !p_sys->b_second_field )
p_sys->i_interpolated_dts = p_sys->i_last_ref_pts; p_sys->i_interpolated_dts = p_sys->i_last_ref_pts;
if( p_sys->i_dts > 0 ) p_sys->i_interpolated_dts = p_sys->i_dts; if( p_sys->i_dts > 0 ) p_sys->i_interpolated_dts = p_sys->i_dts;
if( !p_sys->b_second_field )
p_sys->i_last_ref_pts = p_sys->i_pts; p_sys->i_last_ref_pts = p_sys->i_pts;
} }
p_pic->i_dts = p_sys->i_interpolated_dts; p_pic->i_dts = p_sys->i_interpolated_dts;
p_sys->i_interpolated_dts += i_duration;
/* Set PTS only if we have a B frame or if it comes from the stream */ /* Set PTS only if we have a B frame or if it comes from the stream */
if( p_sys->i_pts > 0 ) if( p_sys->i_pts > 0 )
...@@ -456,17 +460,6 @@ static block_t *ParseMPEGBlock( decoder_t *p_dec, block_t *p_frag ) ...@@ -456,17 +460,6 @@ static block_t *ParseMPEGBlock( decoder_t *p_dec, block_t *p_frag )
p_pic->i_pts = 0; p_pic->i_pts = 0;
} }
if( p_sys->b_low_delay || p_sys->i_picture_type == 0x03 )
{
/* Trivial case (DTS == PTS) */
p_sys->i_interpolated_dts += i_duration;
}
else
{
p_sys->i_interpolated_dts += p_sys->i_old_duration;
p_sys->i_old_duration = i_duration;
}
switch ( p_sys->i_picture_type ) switch ( p_sys->i_picture_type )
{ {
case 0x01: case 0x01:
...@@ -491,6 +484,15 @@ static block_t *ParseMPEGBlock( decoder_t *p_dec, block_t *p_frag ) ...@@ -491,6 +484,15 @@ static block_t *ParseMPEGBlock( decoder_t *p_dec, block_t *p_frag )
p_sys->p_frame = NULL; p_sys->p_frame = NULL;
p_sys->pp_last = &p_sys->p_frame; p_sys->pp_last = &p_sys->p_frame;
p_sys->b_frame_slice = VLC_FALSE; p_sys->b_frame_slice = VLC_FALSE;
if( p_sys->i_picture_structure != 0x03 )
{
p_sys->b_second_field = !p_sys->b_second_field;
}
else
{
p_sys->b_second_field = 0;
}
} }
/* /*
......
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