It may be used under the terms of the GNU General Public License. */
#include "hb.h"
-
+#include "hbffmpeg.h"
#include "mpeg2dec/mpeg2.h"
/* Cadence tracking */
#define BTB_PROG 64
#define TB_PROG 128
#define TBT_PROG 256
-static int cadence[12];
-static int flag = 0;
/**********************************************************************
* hb_libmpeg2_t
int look_for_break; /* need gop start to add chap break */
uint32_t nframes; /* number of frames we've decoded */
int64_t last_pts;
+ int cadence[12];
+ int flag;
} hb_libmpeg2_t;
/**********************************************************************
return m;
}
+static hb_buffer_t *hb_copy_frame( hb_job_t *job, int width, int height,
+ uint8_t* y, uint8_t *u, uint8_t *v )
+{
+ int dst_w = width, dst_h = height;
+ if ( job )
+ {
+ dst_w = job->title->width;
+ dst_h = job->title->height;
+ }
+ int dst_wh = dst_w * dst_h;
+ hb_buffer_t *buf = hb_video_buffer_init( dst_w, dst_h );
+
+ if ( dst_w != width || dst_h != height )
+ {
+ // we're encoding and the frame dimensions don't match the title dimensions -
+ // rescale & matte Y, U, V into our output buf.
+ AVPicture in, out;
+ avpicture_alloc(&in, PIX_FMT_YUV420P, width, height );
+ avpicture_alloc(&out, PIX_FMT_YUV420P, dst_w, dst_h );
+
+ int src_wh = width * height;
+ memcpy( in.data[0], y, src_wh );
+ memcpy( in.data[1], u, src_wh >> 2 );
+ memcpy( in.data[2], v, src_wh >> 2 );
+ struct SwsContext *context = sws_getContext( width, height, PIX_FMT_YUV420P,
+ dst_w, dst_h, PIX_FMT_YUV420P,
+ SWS_LANCZOS|SWS_ACCURATE_RND,
+ NULL, NULL, NULL );
+ sws_scale( context, in.data, in.linesize, 0, height, out.data, out.linesize );
+ sws_freeContext( context );
+
+ uint8_t *data = buf->data;
+ memcpy( data, out.data[0], dst_wh );
+ data += dst_wh;
+ // U & V planes are 1/4 the size of Y plane.
+ dst_wh >>= 2;
+ memcpy( data, out.data[1], dst_wh );
+ data += dst_wh;
+ memcpy( data, out.data[2], dst_wh );
+
+ avpicture_free( &out );
+ avpicture_free( &in );
+ }
+ else
+ {
+ // we're scanning or the frame dimensions match the title's dimensions
+ // so we can do a straight copy.
+ uint8_t *data = buf->data;
+ memcpy( data, y, dst_wh );
+ data += dst_wh;
+ // U & V planes are 1/4 the size of Y plane.
+ dst_wh >>= 2;
+ memcpy( data, u, dst_wh );
+ data += dst_wh;
+ memcpy( data, v, dst_wh );
+ }
+ return buf;
+}
+
/**********************************************************************
* hb_libmpeg2_decode
**********************************************************************
{
mpeg2_state_t state;
hb_buffer_t * buf;
- uint8_t * data;
if ( buf_es->size )
{
if( m->got_iframe )
{
- buf = hb_buffer_init( m->width * m->height * 3 / 2 );
- data = buf->data;
-
+ buf = hb_copy_frame( m->job, m->info->sequence->width,
+ m->info->sequence->height,
+ m->info->display_fbuf->buf[0],
+ m->info->display_fbuf->buf[1],
+ m->info->display_fbuf->buf[2] );
buf->sequence = buf_es->sequence;
- memcpy( data, m->info->display_fbuf->buf[0],
- m->width * m->height );
- data += m->width * m->height;
- memcpy( data, m->info->display_fbuf->buf[1],
- m->width * m->height / 4 );
- data += m->width * m->height / 4;
- memcpy( data, m->info->display_fbuf->buf[2],
- m->width * m->height / 4 );
-
if( m->info->display_picture->flags & PIC_FLAG_TAGS )
{
buf->start =
( (uint64_t) m->info->display_picture->tag << 32 ) |
( (uint64_t) m->info->display_picture->tag2 );
- /*
- * Add back in again to track PTS of MPEG2 frames
- * hb_log("MPEG2: Normal buf->start = %lld", buf->start);
- */
}
else if( m->last_pts > -1 )
{
}
++m->nframes;
- flag = m->info->display_picture->flags;
+ m->flag = m->info->display_picture->flags;
/* Uncomment this block to see frame-by-frame picture flags, as the video encodes.
hb_log("***** MPEG 2 Picture Info for PTS %lld *****", buf->start);
- if( flag & TOP_FIRST )
+ if( m->flag & TOP_FIRST )
hb_log("MPEG2 Flag: Top field first");
- if( flag & PROGRESSIVE )
+ if( m->flag & PROGRESSIVE )
hb_log("MPEG2 Flag: Progressive");
- if( flag & COMPOSITE )
+ if( m->flag & COMPOSITE )
hb_log("MPEG2 Flag: Composite");
- if( flag & SKIP )
+ if( m->flag & SKIP )
hb_log("MPEG2 Flag: Skip!");
- if( flag & TAGS )
+ if( m->flag & TAGS )
hb_log("MPEG2 Flag: TAGS");
- if(flag & REPEAT_FIRST )
+ if(fm->lag & REPEAT_FIRST )
hb_log("MPEG2 Flag: Repeat first field");
- if( flag & COMPOSITE_MASK )
+ if( m->flag & COMPOSITE_MASK )
hb_log("MPEG2 Flag: Composite mask");
hb_log("fields: %d", m->info->display_picture->nb_fields);
*/
int i = 0;
for(i=11; i > 0; i--)
{
- cadence[i] = cadence[i-1];
+ m->cadence[i] = m->cadence[i-1];
}
- if ( !(flag & PROGRESSIVE) && !(flag & TOP_FIRST) )
+ if ( !(m->flag & PROGRESSIVE) && !(m->flag & TOP_FIRST) )
{
/* Not progressive, not top first...
That means it's probably bottom
first, 2 fields displayed.
*/
//hb_log("MPEG2 Flag: Bottom field first, 2 fields displayed.");
- cadence[0] = BT;
+ m->cadence[0] = BT;
}
- else if ( !(flag & PROGRESSIVE) && (flag & TOP_FIRST) )
+ else if ( !(m->flag & PROGRESSIVE) && (m->flag & TOP_FIRST) )
{
/* Not progressive, top is first,
Two fields displayed.
*/
//hb_log("MPEG2 Flag: Top field first, 2 fields displayed.");
- cadence[0] = TB;
+ m->cadence[0] = TB;
}
- else if ( (flag & PROGRESSIVE) && !(flag & TOP_FIRST) && !( flag & REPEAT_FIRST ) )
+ else if ( (m->flag & PROGRESSIVE) && !(m->flag & TOP_FIRST) && !( m->flag & REPEAT_FIRST ) )
{
/* Progressive, but noting else.
That means Bottom first,
2 fields displayed.
*/
//hb_log("MPEG2 Flag: Progressive. Bottom field first, 2 fields displayed.");
- cadence[0] = BT_PROG;
+ m->cadence[0] = BT_PROG;
}
- else if ( (flag & PROGRESSIVE) && !(flag & TOP_FIRST) && ( flag & REPEAT_FIRST ) )
+ else if ( (m->flag & PROGRESSIVE) && !(m->flag & TOP_FIRST) && ( m->flag & REPEAT_FIRST ) )
{
/* Progressive, and repeat. .
That means Bottom first,
3 fields displayed.
*/
//hb_log("MPEG2 Flag: Progressive repeat. Bottom field first, 3 fields displayed.");
- cadence[0] = BTB_PROG;
+ m->cadence[0] = BTB_PROG;
}
- else if ( (flag & PROGRESSIVE) && (flag & TOP_FIRST) && !( flag & REPEAT_FIRST ) )
+ else if ( (m->flag & PROGRESSIVE) && (m->flag & TOP_FIRST) && !( m->flag & REPEAT_FIRST ) )
{
/* Progressive, top first.
That means top first,
2 fields displayed.
*/
//hb_log("MPEG2 Flag: Progressive. Top field first, 2 fields displayed.");
- cadence[0] = TB_PROG;
+ m->cadence[0] = TB_PROG;
}
- else if ( (flag & PROGRESSIVE) && (flag & TOP_FIRST) && ( flag & REPEAT_FIRST ) )
+ else if ( (m->flag & PROGRESSIVE) && (m->flag & TOP_FIRST) && ( m->flag & REPEAT_FIRST ) )
{
/* Progressive, top, repeat.
That means top first,
3 fields displayed.
*/
//hb_log("MPEG2 Flag: Progressive repeat. Top field first, 3 fields displayed.");
- cadence[0] = TBT_PROG;
+ m->cadence[0] = TBT_PROG;
}
- if ( (cadence[2] <= TB) && (cadence[1] <= TB) && (cadence[0] > TB) && (cadence[11]) )
+ if ( (m->cadence[2] <= TB) && (m->cadence[1] <= TB) && (m->cadence[0] > TB) && (m->cadence[11]) )
hb_log("%fs: Video -> Film", (float)buf->start / 90000);
- if ( (cadence[2] > TB) && (cadence[1] <= TB) && (cadence[0] <= TB) && (cadence[11]) )
+ if ( (m->cadence[2] > TB) && (m->cadence[1] <= TB) && (m->cadence[0] <= TB) && (m->cadence[11]) )
hb_log("%fs: Film -> Video", (float)buf->start / 90000);
/* Store picture flags for later use by filters */