#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_codec.h>
-#include <vlc_vout.h>
#include <png.h>
/*****************************************************************************
/*****************************************************************************
* Module descriptor
*****************************************************************************/
-vlc_module_begin();
- set_category( CAT_INPUT );
- set_subcategory( SUBCAT_INPUT_VCODEC );
- set_description( N_("PNG video decoder") );
- set_capability( "decoder", 1000 );
- set_callbacks( OpenDecoder, CloseDecoder );
- add_shortcut( "png" );
-vlc_module_end();
+vlc_module_begin ()
+ set_category( CAT_INPUT )
+ set_subcategory( SUBCAT_INPUT_VCODEC )
+ set_description( N_("PNG video decoder") )
+ set_capability( "decoder", 1000 )
+ set_callbacks( OpenDecoder, CloseDecoder )
+ add_shortcut( "png" )
+vlc_module_end ()
/*****************************************************************************
* OpenDecoder: probe the decoder and return score
static int OpenDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
- decoder_sys_t *p_sys;
- if( p_dec->fmt_in.i_codec != VLC_FOURCC('p','n','g',' ') &&
+ if( p_dec->fmt_in.i_codec != VLC_CODEC_PNG &&
p_dec->fmt_in.i_codec != VLC_FOURCC('M','P','N','G') )
{
return VLC_EGENERIC;
}
/* Allocate the memory needed to store the decoder's structure */
- if( ( p_dec->p_sys = p_sys =
- (decoder_sys_t *)malloc(sizeof(decoder_sys_t)) ) == NULL )
+ if( ( p_dec->p_sys = malloc(sizeof(decoder_sys_t)) ) == NULL )
return VLC_ENOMEM;
/* Set output properties */
p_dec->fmt_out.i_cat = VIDEO_ES;
- p_dec->fmt_out.i_codec = VLC_FOURCC('R','G','B','A');
+ p_dec->fmt_out.i_codec = VLC_CODEC_RGBA;
/* Set callbacks */
p_dec->pf_decode_video = DecodeBlock;
p_block = *pp_block;
p_sys->b_error = false;
+ if( p_block->i_flags & BLOCK_FLAG_DISCONTINUITY )
+ {
+ block_Release( p_block ); *pp_block = NULL;
+ return NULL;
+ }
+
p_png = png_create_read_struct( PNG_LIBPNG_VER_STRING, 0, 0, 0 );
if( p_png == NULL )
{
block_Release( p_block ); *pp_block = NULL;
return NULL;
}
-
+
p_info = png_create_info_struct( p_png );
if( p_info == NULL )
{
- png_destroy_read_struct( &p_png, png_infopp_NULL, png_infopp_NULL );
+ png_destroy_read_struct( &p_png, NULL, NULL );
block_Release( p_block ); *pp_block = NULL;
return NULL;
}
p_end_info = png_create_info_struct( p_png );
if( p_end_info == NULL )
{
- png_destroy_read_struct( &p_png, &p_info, png_infopp_NULL );
+ png_destroy_read_struct( &p_png, &p_info, NULL );
block_Release( p_block ); *pp_block = NULL;
return NULL;
}
-
+
/* libpng longjmp's there in case of error */
if( setjmp( png_jmpbuf( p_png ) ) )
goto error;
if( p_sys->b_error ) goto error;
/* Set output properties */
- p_dec->fmt_out.i_codec = VLC_FOURCC('R','G','B','A');
+ p_dec->fmt_out.i_codec = VLC_CODEC_RGBA;
p_dec->fmt_out.video.i_width = i_width;
p_dec->fmt_out.video.i_height = i_height;
- p_dec->fmt_out.video.i_aspect = VOUT_ASPECT_FACTOR * i_width / i_height;
+ p_dec->fmt_out.video.i_sar_num = 1;
+ p_dec->fmt_out.video.i_sar_den = 1;
p_dec->fmt_out.video.i_rmask = 0x000000ff;
p_dec->fmt_out.video.i_gmask = 0x0000ff00;
p_dec->fmt_out.video.i_bmask = 0x00ff0000;
}
else if( !(i_color_type & PNG_COLOR_MASK_ALPHA) )
{
- p_dec->fmt_out.i_codec = VLC_FOURCC('R','V','2','4');
+ p_dec->fmt_out.i_codec = VLC_CODEC_RGB24;
}
/* Get a new picture */
png_destroy_read_struct( &p_png, &p_info, &p_end_info );
free( p_row_pointers );
- p_pic->date = p_block->i_pts > 0 ? p_block->i_pts : p_block->i_dts;
+ p_pic->date = p_block->i_pts > VLC_TS_INVALID ? p_block->i_pts : p_block->i_dts;
block_Release( p_block ); *pp_block = NULL;
return p_pic;