static void CloseDecoder ( vlc_object_t * );
static void *DecodeBlock ( decoder_t *, block_t ** );
+static int ProcessHeaders( decoder_t * );
static void *ProcessPacket ( decoder_t *, ogg_packet *, block_t ** );
static picture_t *DecodePacket( decoder_t *, ogg_packet * );
oggpacket.e_o_s = 0;
oggpacket.packetno = 0;
- if( p_sys->i_headers == 0 )
+ /* Check for headers */
+ if( p_sys->i_headers == 0 && p_dec->fmt_in.i_extra )
{
- /* Take care of the initial Theora header */
+ /* Headers already available as extra data */
+ p_sys->i_headers = 3;
+ }
+ else if( oggpacket.bytes && p_sys->i_headers < 3 )
+ {
+ /* Backup headers as extra data */
+ uint8_t *p_extra;
+
+ p_dec->fmt_in.p_extra =
+ realloc( p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra +
+ oggpacket.bytes + 2 );
+ p_extra = 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;
+ }
- oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
- if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
+ if( p_sys->i_headers == 3 )
+ {
+ if( ProcessHeaders( p_dec ) != VLC_SUCCESS )
{
- msg_Err( p_dec, "This bitstream does not contain Theora "
- "video data." );
- block_Release( p_block );
+ p_sys->i_headers = 0;
+ p_dec->fmt_in.i_extra = 0;
+ block_Release( *pp_block );
return NULL;
}
- p_sys->i_headers++;
+ else p_sys->i_headers++;
+ }
- /* Set output properties */
- p_dec->fmt_out.video.i_width = p_sys->ti.width;
- p_dec->fmt_out.video.i_height = p_sys->ti.height;
+ return ProcessPacket( p_dec, &oggpacket, pp_block );
+}
- if( p_sys->ti.aspect_denominator && p_sys->ti.aspect_numerator )
- {
- p_dec->fmt_out.video.i_aspect = ((int64_t)VOUT_ASPECT_FACTOR) *
- ( p_sys->ti.aspect_numerator * p_sys->ti.width ) /
- ( p_sys->ti.aspect_denominator * p_sys->ti.height );
- }
- else
- {
- p_dec->fmt_out.video.i_aspect = VOUT_ASPECT_FACTOR *
- p_sys->ti.frame_width / p_sys->ti.frame_height;
- }
+/*****************************************************************************
+ * ProcessHeaders: process Theora headers.
+ *****************************************************************************/
+static int ProcessHeaders( decoder_t *p_dec )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ ogg_packet oggpacket;
+ uint8_t *p_extra;
+ int i_extra;
- msg_Dbg( p_dec, "%dx%d %.02f fps video, frame content "
- "is %dx%d with offset (%d,%d).",
- p_sys->ti.width, p_sys->ti.height,
- (double)p_sys->ti.fps_numerator/p_sys->ti.fps_denominator,
- p_sys->ti.frame_width, p_sys->ti.frame_height,
- p_sys->ti.offset_x, p_sys->ti.offset_y );
+ if( !p_dec->fmt_in.i_extra ) return VLC_EGENERIC;
- return ProcessPacket( p_dec, &oggpacket, pp_block );
+ 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;
}
- if( p_sys->i_headers == 1 )
+ if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
{
- /* The next packet in order is the comments header */
- if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
- {
- msg_Err( p_dec, "2nd Theora header is corrupted." );
- return NULL;
- }
- p_sys->i_headers++;
+ msg_Err( p_dec, "This bitstream does not contain Theora video data" );
+ return VLC_EGENERIC;
+ }
+
+ /* Set output properties */
+ p_dec->fmt_out.video.i_width = p_sys->ti.width;
+ p_dec->fmt_out.video.i_height = p_sys->ti.height;
+
+ if( p_sys->ti.aspect_denominator && p_sys->ti.aspect_numerator )
+ {
+ p_dec->fmt_out.video.i_aspect = ((int64_t)VOUT_ASPECT_FACTOR) *
+ ( p_sys->ti.aspect_numerator * p_sys->ti.width ) /
+ ( p_sys->ti.aspect_denominator * p_sys->ti.height );
+ }
+ else
+ {
+ p_dec->fmt_out.video.i_aspect = VOUT_ASPECT_FACTOR *
+ p_sys->ti.frame_width / p_sys->ti.frame_height;
+ }
- ParseTheoraComments( p_dec );
+ msg_Dbg( p_dec, "%dx%d %.02f fps video, frame content "
+ "is %dx%d with offset (%d,%d)",
+ p_sys->ti.width, p_sys->ti.height,
+ (double)p_sys->ti.fps_numerator/p_sys->ti.fps_denominator,
+ p_sys->ti.frame_width, p_sys->ti.frame_height,
+ p_sys->ti.offset_x, p_sys->ti.offset_y );
- return ProcessPacket( p_dec, &oggpacket, pp_block );
+ /* 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;
}
- if( p_sys->i_headers == 2 )
+ /* The next packet in order is the comments header */
+ if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
{
- /* 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. */
- if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
- {
- msg_Err( p_dec, "3rd Theora header is corrupted." );
- return NULL;
- }
- p_sys->i_headers++;
+ msg_Err( p_dec, "2nd Theora header is corrupted" );
+ return VLC_EGENERIC;
+ }
- if( !p_sys->b_packetizer )
- {
- /* We have all the headers, initialize decoder */
- theora_decode_init( &p_sys->td, &p_sys->ti );
- }
+ ParseTheoraComments( p_dec );
- return ProcessPacket( p_dec, &oggpacket, pp_block );
+ /* 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;
}
- return ProcessPacket( p_dec, &oggpacket, pp_block );
+ /* 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 */
+ if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
+ {
+ msg_Err( p_dec, "3rd Theora header is corrupted" );
+ return VLC_EGENERIC;
+ }
+
+ if( !p_sys->b_packetizer )
+ {
+ /* We have all the headers, initialize decoder */
+ theora_decode_init( &p_sys->td, &p_sys->ti );
+ }
+ else
+ {
+ p_dec->fmt_out.i_extra = p_dec->fmt_in.i_extra;
+ p_dec->fmt_out.p_extra =
+ realloc( p_dec->fmt_out.p_extra, p_dec->fmt_out.i_extra );
+ memcpy( p_dec->fmt_out.p_extra,
+ p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
+ }
+
+ return VLC_SUCCESS;
}
/*****************************************************************************
p_sys->i_pts = p_block->i_pts;
}
+ *pp_block = NULL; /* To avoid being fed the same packet again */
+
if( p_sys->b_packetizer )
{
/* Date management */
else
p_buf = NULL;
- if( p_block )
- {
- block_Release( p_block );
- *pp_block = NULL;
- }
+ if( p_block ) block_Release( p_block );
}
/* Date management */
static void ParseTheoraComments( decoder_t *p_dec )
{
input_thread_t *p_input = (input_thread_t *)p_dec->p_parent;
-
- int i = 0;
char *psz_name, *psz_value, *psz_comment;
+ int i = 0;
+
+ if( p_input->i_object_type != VLC_OBJECT_INPUT ) return;
+
while ( i < p_dec->p_sys->tc.comments )
{
psz_comment = strdup( p_dec->p_sys->tc.user_comments[i] );
{
encoder_t *p_enc = (encoder_t *)p_this;
encoder_sys_t *p_sys = p_enc->p_sys;
- ogg_packet header[3];
+ ogg_packet header;
uint8_t *p_extra;
vlc_value_t val;
int i_quality, i;
theora_comment_init( &p_sys->tc );
/* Create and store headers */
- theora_encode_header( &p_sys->td, &header[0] );
- theora_encode_comment( &p_sys->tc, &header[1] );
- theora_encode_tables( &p_sys->td, &header[2] );
- p_enc->fmt_out.i_extra = 1 + 3 * 2 + header[0].bytes +
- header[1].bytes + header[2].bytes;
- p_extra = p_enc->fmt_out.p_extra = malloc( p_enc->fmt_out.i_extra );
- *(p_extra++) = 3; /* number of headers */
+ p_enc->fmt_out.i_extra = 3 * 2;
for( i = 0; i < 3; i++ )
{
- *(p_extra++) = header[i].bytes >> 8;
- *(p_extra++) = header[i].bytes & 0xFF;
- memcpy( p_extra, header[i].packet, header[i].bytes );
- p_extra += header[i].bytes;
+ if( i == 0 ) theora_encode_header( &p_sys->td, &header );
+ else if( i == 1 ) theora_encode_comment( &p_sys->tc, &header );
+ else if( i == 2 ) theora_encode_tables( &p_sys->td, &header );
+
+ p_enc->fmt_out.p_extra =
+ realloc( p_enc->fmt_out.p_extra,
+ p_enc->fmt_out.i_extra + header.bytes );
+ p_extra = p_enc->fmt_out.p_extra;
+ p_extra += p_enc->fmt_out.i_extra + (i-3)*2;
+ p_enc->fmt_out.i_extra += header.bytes;
+
+ *(p_extra++) = header.bytes >> 8;
+ *(p_extra++) = header.bytes & 0xFF;
+
+ memcpy( p_extra, header.packet, header.bytes );
}
return VLC_SUCCESS;
projects / vlc / blobdiff