#include <vlc_codec.h>
#include <vlc_sout.h>
#include <vlc_input.h>
+#include "../demux/xiph.h"
+
#include <ogg/ogg.h>
#include <theora/theora.h>
/*
* Input properties
*/
- int i_headers;
+ bool b_has_headers;
/*
* Theora properties
if( ( p_dec->p_sys = p_sys = malloc(sizeof(*p_sys)) ) == NULL )
return VLC_ENOMEM;
p_dec->p_sys->b_packetizer = false;
-
+ p_sys->b_has_headers = false;
p_sys->i_pts = VLC_TS_INVALID;
p_sys->b_decoded_first_keyframe = false;
theora_comment_init( &p_sys->tc );
theora_info_init( &p_sys->ti );
- p_sys->i_headers = 0;
-
return VLC_SUCCESS;
}
oggpacket.packetno = 0;
/* Check for headers */
- if( p_sys->i_headers == 0 && p_dec->fmt_in.i_extra )
- {
- /* Headers already available as extra data */
- p_sys->i_headers = 3;
- }
- else if( oggpacket.bytes && p_sys->i_headers < 3 )
+ if( !p_sys->b_has_headers )
{
- /* Backup headers as extra data */
- uint8_t *p_extra;
-
- p_dec->fmt_in.p_extra = xrealloc( p_dec->fmt_in.p_extra,
- p_dec->fmt_in.i_extra + oggpacket.bytes + 2 );
- p_extra = ((uint8_t *)p_dec->fmt_in.p_extra) + p_dec->fmt_in.i_extra;
- *(p_extra++) = oggpacket.bytes >> 8;
- *(p_extra++) = oggpacket.bytes & 0xFF;
-
- memcpy( p_extra, oggpacket.packet, oggpacket.bytes );
- p_dec->fmt_in.i_extra += oggpacket.bytes + 2;
-
- block_Release( *pp_block );
- p_sys->i_headers++;
- return NULL;
- }
-
- if( p_sys->i_headers == 3 )
- {
- if( ProcessHeaders( p_dec ) != VLC_SUCCESS )
+ if( ProcessHeaders( p_dec ) )
{
- p_sys->i_headers = 0;
- p_dec->fmt_in.i_extra = 0;
block_Release( *pp_block );
return NULL;
}
- else p_sys->i_headers++;
+ p_sys->b_has_headers = true;
}
return ProcessPacket( p_dec, &oggpacket, pp_block );
{
decoder_sys_t *p_sys = p_dec->p_sys;
ogg_packet oggpacket;
- uint8_t *p_extra;
- int i_extra;
- if( !p_dec->fmt_in.i_extra ) return VLC_EGENERIC;
+ unsigned pi_size[XIPH_MAX_HEADER_COUNT];
+ void *pp_data[XIPH_MAX_HEADER_COUNT];
+ unsigned i_count;
+ if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
+ p_dec->fmt_in.i_extra, p_dec->fmt_in.p_extra) )
+ return VLC_EGENERIC;
+ if( i_count < 3 )
+ goto error;
oggpacket.granulepos = -1;
- oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
oggpacket.e_o_s = 0;
oggpacket.packetno = 0;
- p_extra = p_dec->fmt_in.p_extra;
- i_extra = p_dec->fmt_in.i_extra;
/* Take care of the initial Vorbis header */
- oggpacket.bytes = *(p_extra++) << 8;
- oggpacket.bytes |= (*(p_extra++) & 0xFF);
- oggpacket.packet = p_extra;
- p_extra += oggpacket.bytes;
- i_extra -= (oggpacket.bytes + 2);
- if( i_extra < 0 )
- {
- msg_Err( p_dec, "header data corrupted");
- return VLC_EGENERIC;
- }
-
+ oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
+ oggpacket.bytes = pi_size[0];
+ oggpacket.packet = pp_data[0];
if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
{
msg_Err( p_dec, "this bitstream does not contain Theora video data" );
- return VLC_EGENERIC;
+ goto error;
}
/* Set output properties */
}
/* The next packet in order is the comments header */
- oggpacket.b_o_s = 0;
- oggpacket.bytes = *(p_extra++) << 8;
- oggpacket.bytes |= (*(p_extra++) & 0xFF);
- oggpacket.packet = p_extra;
- p_extra += oggpacket.bytes;
- i_extra -= (oggpacket.bytes + 2);
- if( i_extra < 0 )
- {
- msg_Err( p_dec, "header data corrupted");
- return VLC_EGENERIC;
- }
-
- /* The next packet in order is the comments header */
+ oggpacket.b_o_s = 0;
+ oggpacket.bytes = pi_size[1];
+ oggpacket.packet = pp_data[1];
if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
{
msg_Err( p_dec, "2nd Theora header is corrupted" );
- return VLC_EGENERIC;
+ goto error;
}
ParseTheoraComments( p_dec );
/* The next packet in order is the codebooks header
* We need to watch out that this packet is not missing as a
* missing or corrupted header is fatal. */
- oggpacket.bytes = *(p_extra++) << 8;
- oggpacket.bytes |= (*(p_extra++) & 0xFF);
- oggpacket.packet = p_extra;
- i_extra -= (oggpacket.bytes + 2);
- if( i_extra < 0 )
- {
- msg_Err( p_dec, "header data corrupted");
- return VLC_EGENERIC;
- }
-
- /* The next packet in order is the codebooks header
- * We need to watch out that this packet is not missing as a
- * missing or corrupted header is fatal */
+ oggpacket.b_o_s = 0;
+ oggpacket.bytes = pi_size[2];
+ oggpacket.packet = pp_data[2];
if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
{
msg_Err( p_dec, "3rd Theora header is corrupted" );
- return VLC_EGENERIC;
+ goto error;
}
if( !p_sys->b_packetizer )
p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
}
+ for( unsigned i = 0; i < i_count; i++ )
+ free( pp_data[i] );
return VLC_SUCCESS;
+
+error:
+ for( unsigned i = 0; i < i_count; i++ )
+ free( pp_data[i] );
+ return VLC_EGENERIC;
}
/*****************************************************************************
/* Date management */
p_block->i_dts = p_block->i_pts = p_sys->i_pts;
- if( p_sys->i_headers >= 3 )
- p_block->i_length = p_sys->i_pts - p_block->i_pts;
- else
- p_block->i_length = 0;
+ p_block->i_length = p_sys->i_pts - p_block->i_pts;
p_buf = p_block;
}
else
{
- if( p_sys->i_headers >= 3 )
- p_buf = DecodePacket( p_dec, p_oggpacket );
- else
- p_buf = NULL;
-
- if( p_block ) block_Release( p_block );
+ p_buf = DecodePacket( p_dec, p_oggpacket );
+ if( p_block )
+ block_Release( p_block );
}
/* Date management */
projects / vlc / blobdiff