/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h> /* malloc(), free() */
-#include <vlc/vlc.h>
-#include <vlc/decoder.h>
-#include <vlc/input.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
-#include "vlc_block_helper.h"
+#include <vlc/vlc.h>
+#include <vlc_block.h>
+#include <vlc_codec.h>
+#include <vlc_block_helper.h>
+#include "../codec/cc.h"
#define SYNC_INTRAFRAME_TEXT N_("Sync on Intra Frame")
#define SYNC_INTRAFRAME_LONGTEXT N_("Normally the packetizer would " \
*****************************************************************************/
static block_t *Packetize( decoder_t *, block_t ** );
static block_t *ParseMPEGBlock( decoder_t *, block_t * );
+static block_t *GetCc( decoder_t *p_dec, vlc_bool_t pb_present[4] );
struct decoder_sys_t
{
*/
block_bytestream_t bytestream;
int i_state;
- int i_offset;
+ size_t i_offset;
uint8_t p_startcode[3];
/* Sequence header and extension */
int i_progressive_frame;
mtime_t i_interpolated_dts;
- mtime_t i_old_duration;
mtime_t i_last_ref_pts;
+ vlc_bool_t b_second_field;
/* Number of pictures since last sequence header */
int i_seq_old;
/* Sync behaviour */
vlc_bool_t b_sync_on_intra_frame;
vlc_bool_t b_discontinuity;
+
+ /* */
+ vlc_bool_t b_cc_reset;
+ uint32_t i_cc_flags;
+ mtime_t i_cc_pts;
+ mtime_t i_cc_dts;
+ cc_data_t cc;
};
enum {
es_format_Init( &p_dec->fmt_out, VIDEO_ES, VLC_FOURCC('m','p','g','v') );
p_dec->pf_packetize = Packetize;
+ p_dec->pf_get_cc = GetCc;
p_dec->p_sys = p_sys = malloc( sizeof( decoder_sys_t ) );
/* Misc init */
p_sys->i_state = STATE_NOSYNC;
- p_sys->bytestream = block_BytestreamInit( p_dec );
+ p_sys->bytestream = block_BytestreamInit();
p_sys->p_startcode[0] = 0;
p_sys->p_startcode[1] = 0;
p_sys->p_startcode[2] = 1;
p_sys->b_inited = 0;
p_sys->i_interpolated_dts = 0;
- p_sys->i_old_duration = 0;
p_sys->i_last_ref_pts = 0;
+ p_sys->b_second_field = 0;
p_sys->b_discontinuity = VLC_FALSE;
p_sys->b_sync_on_intra_frame = var_CreateGetBool( p_dec, "packetizer-mpegvideo-sync-iframe" );
if( p_sys->b_sync_on_intra_frame )
msg_Dbg( p_dec, "syncing on intra frame now" );
+ p_sys->b_cc_reset = VLC_FALSE;
+ p_sys->i_cc_pts = 0;
+ p_sys->i_cc_dts = 0;
+ p_sys->i_cc_flags = 0;
+ cc_Init( &p_sys->cc );
+
return VLC_SUCCESS;
}
return NULL;
}
- if( (*pp_block)->i_flags & (BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) )
+ if( (*pp_block)->i_flags&(BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) )
{
- p_sys->i_state = STATE_NOSYNC;
- p_sys->b_discontinuity = VLC_TRUE;
- if( p_sys->p_frame )
- block_ChainRelease( p_sys->p_frame );
- p_sys->p_frame = NULL;
- p_sys->pp_last = &p_sys->p_frame;
- p_sys->b_frame_slice = VLC_FALSE;
+ if( (*pp_block)->i_flags&BLOCK_FLAG_CORRUPTED )
+ {
+ p_sys->i_state = STATE_NOSYNC;
+ block_BytestreamFlush( &p_sys->bytestream );
+
+ p_sys->b_discontinuity = VLC_TRUE;
+ if( p_sys->p_frame )
+ block_ChainRelease( p_sys->p_frame );
+ p_sys->p_frame = NULL;
+ p_sys->pp_last = &p_sys->p_frame;
+ p_sys->b_frame_slice = VLC_FALSE;
+ }
+// p_sys->i_interpolated_dts =
+// p_sys->i_last_ref_pts = 0;
+
block_Release( *pp_block );
return NULL;
}
+
block_BytestreamPush( &p_sys->bytestream, *pp_block );
while( 1 )
}
}
+/*****************************************************************************
+ * GetCc:
+ *****************************************************************************/
+static block_t *GetCc( decoder_t *p_dec, vlc_bool_t pb_present[4] )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ block_t *p_cc;
+ int i;
+
+ for( i = 0; i < 4; i++ )
+ pb_present[i] = p_sys->cc.pb_present[i];
+
+ if( p_sys->cc.i_data <= 0 )
+ return NULL;
+
+ p_cc = block_New( p_dec, p_sys->cc.i_data);
+ if( p_cc )
+ {
+ memcpy( p_cc->p_buffer, p_sys->cc.p_data, p_sys->cc.i_data );
+ p_cc->i_dts =
+ p_cc->i_pts = p_sys->cc.b_reorder ? p_sys->i_cc_pts : p_sys->i_cc_dts;
+ p_cc->i_flags = ( p_sys->cc.b_reorder ? p_sys->i_cc_flags : BLOCK_FLAG_TYPE_P ) & ( BLOCK_FLAG_TYPE_I|BLOCK_FLAG_TYPE_P|BLOCK_FLAG_TYPE_B);
+ }
+ cc_Flush( &p_sys->cc );
+ return p_cc;
+}
+
/*****************************************************************************
* ParseMPEGBlock: Re-assemble fragments into a block containing a picture
*****************************************************************************/
else
{
/* 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;
if( p_sys->i_dts > 0 ) p_sys->i_interpolated_dts = p_sys->i_dts;
- p_sys->i_last_ref_pts = p_sys->i_pts;
+ if( !p_sys->b_second_field )
+ p_sys->i_last_ref_pts = p_sys->i_pts;
}
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 */
if( p_sys->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 )
{
case 0x01:
p_sys->p_frame = NULL;
p_sys->pp_last = &p_sys->p_frame;
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;
+ }
+
+ /* CC */
+ p_sys->b_cc_reset = VLC_TRUE;
+ p_sys->i_cc_pts = p_pic->i_pts;
+ p_sys->i_cc_dts = p_pic->i_dts;
+ p_sys->i_cc_flags = p_pic->i_flags;
+ }
+
+ if( !p_pic && p_sys->b_cc_reset )
+ {
+ p_sys->b_cc_reset = VLC_FALSE;
+ cc_Flush( &p_sys->cc );
}
/*
{
int i_type = p_frag->p_buffer[4] >> 4;
- /* Extention start code */
+ /* Extension start code */
if( i_type == 0x01 )
{
#if 0
};
#endif
- /* sequence extention */
+ /* sequence extension */
if( p_sys->p_ext) block_Release( p_sys->p_ext );
p_sys->p_ext = block_Duplicate( p_frag );
}
else if( i_type == 0x08 )
{
- /* picture extention */
+ /* picture extension */
p_sys->i_picture_structure = p_frag->p_buffer[6]&0x03;
p_sys->i_top_field_first = p_frag->p_buffer[7] >> 7;
p_sys->i_repeat_first_field= (p_frag->p_buffer[7]>>1)&0x01;
p_sys->i_progressive_frame = p_frag->p_buffer[8] >> 7;
}
}
+ else if( p_frag->p_buffer[3] == 0xb2 && p_frag->i_buffer > 4 )
+ {
+ cc_Extract( &p_sys->cc, &p_frag->p_buffer[4], p_frag->i_buffer - 4 );
+ }
else if( p_frag->p_buffer[3] == 0x00 )
{
/* Picture start code */
projects / vlc / blobdiff