Commit c0aeb6ae authored by Laurent Aimar's avatar Laurent Aimar
Browse files

Reduce CDG decoder frame rate down to 25.

parent 96b814ba
......@@ -58,6 +58,8 @@ struct decoder_sys_t
int i_offsetv;
uint8_t screen[CDG_SCREEN_PITCH*CDG_SCREEN_HEIGHT];
uint8_t *p_screen;
int i_packet;
};
#define CDG_PACKET_SIZE (24)
......@@ -107,6 +109,7 @@ static int Open( vlc_object_t *p_this )
/* Init */
p_sys->p_screen = p_sys->screen;
p_sys->i_packet = 0;
/* Set output properties
* TODO maybe it would be better to use RV16 or RV24 ? */
......@@ -141,6 +144,12 @@ static picture_t *Decode( decoder_t *p_dec, block_t **pp_block )
return NULL;
p_block = *pp_block;
if( p_block->i_flags & (BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) )
{
p_sys->i_packet = 0;
goto exit;
}
/* Decode packet */
while( p_block->i_buffer >= CDG_PACKET_SIZE )
{
......@@ -149,20 +158,21 @@ static picture_t *Decode( decoder_t *p_dec, block_t **pp_block )
p_block->p_buffer += CDG_PACKET_SIZE;
}
/* Get a new picture */
p_pic = decoder_NewPicture( p_dec );
if( !p_pic )
goto error;
/* Only display 25 frame per second (there is 75 packets per second) */
if( (p_sys->i_packet%3) == 1 )
{
/* Get a new picture */
p_pic = decoder_NewPicture( p_dec );
if( !p_pic )
goto exit;
Render( p_sys, p_pic );
p_pic->date = p_block->i_pts > 0 ? p_block->i_pts : p_block->i_dts;
Render( p_sys, p_pic );
p_pic->date = p_block->i_pts > 0 ? p_block->i_pts : p_block->i_dts;
}
exit:
block_Release( p_block ); *pp_block = NULL;
return p_pic;
error:
block_Release( p_block ); *pp_block = NULL;
return NULL;
}
/*****************************************************************************
......@@ -336,6 +346,8 @@ static int DecodePacket( decoder_sys_t *p_cdg, uint8_t *p_buffer, int i_buffer )
if( i_buffer != CDG_PACKET_SIZE )
return -1;
p_cdg->i_packet++;
/* Handle CDG command only */
if( i_cmd != 0x09 )
return 0;
......
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