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amarok/amarok/src/metadata/rmff/rmff.cpp

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/***************************************************************************
copyright : (C) 2005 by Paul Cifarelli
email : paulc2@optonline.net
***************************************************************************/
/***************************************************************************
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 51 Franklin St, 5th fl, Boston, MA 02110-1301, *
* USA, or check http://www.fsf.org/about/contact.html *
* *
* Note that no RealNetworks code appears or is duplicated, copied, or *
+ used as a template in this code. The code was written from scratch *
* using the reference documentation found at: *
* *
* https://common.helixcommunity.org/nonav/2003/HCS_SDK_r5/helixsdk.htm *
* *
***************************************************************************/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <netinet/in.h>
#include <taglib.h>
#include <id3v1tag.h>
#include <id3v2tag.h>
#include <tfile.h>
#include <fileref.h>
#include <iostream>
#include <string.h>
#include "rmff.h"
#define UNPACK4(a, buf, i) memcpy((void *)&a, (void *) &buf[i], 4),i+=4,a=ntohl(a)
#define UNPACK2(a, buf, i) memcpy((void *)&a, (void *) &buf[i], 2),i+=2,a=ntohs(a)
using namespace TagLib;
using namespace TagLib::RealMedia;
RMFFile::RMFFile(const char *filename) : File(filename), m_id3tag(0)
{
if (isOpen())
m_id3tag = new ID3v1::Tag(this, length() - 128);
}
RMFFile::~RMFFile()
{
delete m_id3tag;
}
bool RMFFile::save()
{
ByteVector bv = m_id3tag->render(); //TODO finish this
return false;
}
String RealMediaFF::title () const
{
return !m_err && m_id3v1tag ? m_id3v1tag->tag()->title() : "";
}
String RealMediaFF::artist () const
{
return !m_err && m_id3v1tag ? m_id3v1tag->tag()->artist() : "";
}
String RealMediaFF::album () const
{
return !m_err && m_id3v1tag ? m_id3v1tag->tag()->album() : "";
}
String RealMediaFF::comment() const
{
return !m_err && m_id3v1tag ? m_id3v1tag->tag()->comment() : "";
}
String RealMediaFF::genre() const
{
return !m_err && m_id3v1tag ? m_id3v1tag->tag()->genre() : "";
}
TagLib::uint RealMediaFF::year() const
{
return !m_err && m_id3v1tag ? m_id3v1tag->tag()->year() : 0;
}
TagLib::uint RealMediaFF::track() const
{
return !m_err && m_id3v1tag ? m_id3v1tag->tag()->track() : 0;
}
// properties
int RealMediaFF::length () const
{
return m_readProperties && !m_err && m_props ? m_props->duration : 0;
}
int RealMediaFF::bitrate () const
{
return m_readProperties && !m_err && m_props ? m_props->avg_bit_rate : 0;
}
int RealMediaFF::sampleRate () const
{
return 0;
}
int RealMediaFF::channels () const
{
return 0;
}
RealMediaFF::RealMediaFF(const char *file, bool readProperties, AudioProperties::ReadStyle /*propertiesStyle*/)
: m_filename(0)
, m_head(0)
, m_tail(0)
, m_err(0)
, m_hdr(0)
, m_props(0)
, media_hdrs(0)
, m_contenthdr(0)
, m_md(0)
, m_title(0)
, m_author(0)
, m_copyright(0)
, m_comment(0)
, m_id3v1tag(0)
, m_flipYearInMetadataSection(0)
, m_readProperties(readProperties)
{
m_filename = strdup(file);
m_fd = open(m_filename, O_RDONLY);
if (m_fd < 0)
{
m_err = -1;
return;
}
// ok, for RM files, the properties are embedded, so we ignore propertiesStyle
if (m_readProperties)
{
init();
// and now for the really complicated stuff...
if (initMetadataSection())
std::cerr << "ERROR reading Metadata\n";
}
// now get the ID3v1 tag at the end of this file
m_id3v1tag = new RMFFile(m_filename);
}
RealMediaFF::RealMediaFF(RealMediaFF &src)
: m_filename(0)
, m_head(0)
, m_tail(0)
, m_err(0)
, m_hdr(0)
, m_props(0)
, media_hdrs(0)
, m_contenthdr(0)
, m_md(0)
, m_title(0)
, m_author(0)
, m_copyright(0)
, m_comment(0)
, m_id3v1tag(0)
, m_flipYearInMetadataSection(0)
, m_readProperties(src.m_readProperties)
{
m_filename=strdup(src.m_filename);
m_fd = open(m_filename, O_RDONLY);
if (m_fd < 0)
{
m_err = -1;
return;
}
// ok, for RM files, the properties are embedded, so we ignore propertiesStyle
if (m_readProperties)
{
init();
// and now for the really complicated stuff...
if (initMetadataSection())
std::cerr << "ERROR reading Metadata\n";
}
// now get the ID3v1 tag at the end of this file
m_id3v1tag = new RMFFile(m_filename);
}
RealMediaFF::~RealMediaFF()
{
::free(m_filename);
Collectable *hdr = m_head, *next;
while (hdr)
{
next = hdr->fwd;
delete hdr;
hdr = next;
}
delete m_id3v1tag;
delete m_md;
close(m_fd);
}
bool RealMediaFF::isEmpty() const
{
return m_id3v1tag->tag()->isEmpty();
}
void RealMediaFF::saveHeader(Collectable *hdr)
{
hdr->fwd = 0;
if (!m_head)
m_head = m_tail = hdr;
else
{
m_tail->fwd = hdr;
m_tail = hdr;
}
}
int RealMediaFF::init()
{
int nbytes;
unsigned char buf[65536];
UINT32 object_id;
UINT32 sz;
UINT32 consumed = 0;
off_t s;
if ( (s = lseek(m_fd, 0, SEEK_SET)) )
{
m_err = -1;
return m_err;
}
m_hdr = new File_Header_v0_v1;
nbytes = getChunk(buf, 65536, m_hdr->s.object_id, m_hdr->s.size, consumed);
if (nbytes < 0 || m_hdr->s.size != consumed || memcmp((void *)&m_hdr->s.object_id, ".RMF", 4))
{
//std::cerr << "SERIOUS ERROR - not likely a RealMedia file\n";
m_err = -1;
return m_err;
}
if (!getRealFileHeader(m_hdr, buf, m_hdr->s.object_id, m_hdr->s.size))
{
saveHeader(m_hdr);
consumed = 0;
nbytes = getChunk(buf, 65536, object_id, sz, consumed);
if (nbytes < 0 || sz != consumed)
{
m_err = -1;
return m_err;
}
while (!m_err && memcmp((void *)&object_id, "DATA", 4))
{
char oid[5];
memcpy((void *)oid, (void *)&object_id, 4);
oid[4] = 0;
if (!memcmp((void *)&object_id, "PROP", 4))
{
m_props = new RMProperties;
getRealPropertyHeader(m_props, buf, object_id, sz);
saveHeader(m_props);
}
if (!memcmp((void *)&object_id, "MDPR", 4))
{
media_hdrs = new MediaProperties;
getMediaPropHeader(media_hdrs, buf, object_id, sz);
saveHeader(media_hdrs);
}
if (!memcmp((void *)&object_id, "CONT", 4))
{
m_contenthdr = new ContentDescription;
getContentDescription(m_contenthdr, buf, object_id, sz);
saveHeader(m_contenthdr);
}
consumed = 0;
do
{
nbytes = getChunk(buf, 65536, object_id, sz, consumed);
} while ( !m_err && memcmp((void *)&object_id, "DATA", 4) && (consumed < sz) );
}
}
return 0;
}
int RealMediaFF::getHdr(unsigned char *buf, size_t sz, UINT32 &fourcc, UINT32 &csz)
{
int nbytes = 0, i = 0;
if (sz < (size_t)RMFF_HDR_SIZE)
return 0;
if ( (nbytes = read(m_fd, (void *) buf, RMFF_HDR_SIZE)) != RMFF_HDR_SIZE )
{
m_err = -1;
return (nbytes);
}
memcpy((void *)&fourcc, buf, 4); i+=4;
UNPACK4(csz,buf,i);
return nbytes;
}
int RealMediaFF::getChunk(unsigned char *buf, size_t sz, UINT32 &fourcc, UINT32 &csz, UINT32 &alreadyconsumed)
{
int nbytes = 0, i = 0, readamount;
csz = 0;
if (!alreadyconsumed)
{
if ( (nbytes = getHdr(buf, sz, fourcc, csz)) != RMFF_HDR_SIZE )
{
m_err = -1;
alreadyconsumed += nbytes > 0 ? nbytes : 0;
return nbytes;
}
alreadyconsumed += RMFF_HDR_SIZE;
readamount = csz - RMFF_HDR_SIZE;
i = RMFF_HDR_SIZE;
}
else
readamount = csz - alreadyconsumed;
if ( (nbytes = read(m_fd, (void *) &buf[i], readamount > (int)sz - i ? (int)sz - i : readamount )) != readamount )
{
if (nbytes < 0)
{
m_err = -1;
}
else
alreadyconsumed += nbytes;
return (nbytes<0 ? i : i + nbytes);
}
alreadyconsumed += nbytes;
return (csz);
}
int RealMediaFF::getRealFileHeader(File_Header_v0_v1 *hdr, const unsigned char *buf, UINT32 object_id, int sz)
{
int i = 0;
// RealMedia header
hdr->s.object_id = object_id;
hdr->s.size = sz;
i = RMFF_HDR_SIZE;
UNPACK2(hdr->object_version, buf, i);
if ( !strncmp((const char *) &hdr->s.object_id, ".RMF", 4) &&
(hdr->object_version == 0 || hdr->object_version == 1) )
{
UNPACK4(hdr->file_version, buf, i);
UNPACK4(hdr->num_headers, buf, i);
}
return 0;
}
int RealMediaFF::getRealPropertyHeader(RMProperties *props, const unsigned char *buf, UINT32 object_id, int sz)
{
int i = 0;
// Properties
props->s.object_id = object_id;
props->s.size = sz;
i = RMFF_HDR_SIZE;
UNPACK2(props->object_version, buf, i);
if ( !strncmp((const char *)&props->s.object_id,"PROP",4) && (props->object_version == 0) )
{
UNPACK4(props->max_bit_rate, buf, i);
UNPACK4(props->avg_bit_rate, buf, i);
UNPACK4(props->max_packet_size, buf, i);
UNPACK4(props->avg_packet_size, buf, i);
UNPACK4(props->num_packets, buf, i);
UNPACK4(props->duration, buf, i);
UNPACK4(props->preroll, buf, i);
UNPACK4(props->index_offset, buf, i);
UNPACK4(props->data_offset, buf, i);
UNPACK2(props->num_streams, buf, i);
UNPACK2(props->flags, buf, i);
}
return 0;
}
int RealMediaFF::getMediaPropHeader(MediaProperties *media_hdr, const unsigned char *buf, UINT32 object_id, int sz)
{
int i = 0;
// Properties
media_hdr->s.object_id = object_id;
media_hdr->s.size = sz;
i = RMFF_HDR_SIZE;
UNPACK2(media_hdr->object_version, buf, i);
if ( !strncmp((const char *)&media_hdr->s.object_id, "MDPR", 4) && media_hdr->object_version == 0)
{
UNPACK2(media_hdr->stream_number, buf, i);
UNPACK4(media_hdr->max_bit_rate, buf, i);
UNPACK4(media_hdr->avg_bit_rate, buf, i);
UNPACK4(media_hdr->max_packet_size, buf, i);
UNPACK4(media_hdr->avg_packet_size, buf, i);
UNPACK4(media_hdr->start_time, buf, i);
UNPACK4(media_hdr->preroll, buf, i);
UNPACK4(media_hdr->duration, buf, i);
media_hdr->stream_name_size = buf[i]; i++;
memcpy(media_hdr->stream_name, &buf[i], media_hdr->stream_name_size);
media_hdr->stream_name[media_hdr->stream_name_size] = 0;
i += media_hdr->stream_name_size;
media_hdr->mime_type_size = buf[i]; i++;
memcpy(media_hdr->mime_type, &buf[i], media_hdr->mime_type_size);
i += media_hdr->mime_type_size;
UNPACK4(media_hdr->type_specific_len, buf, i);
if (media_hdr->type_specific_len)
{
media_hdr->type_specific_data = new UINT8[media_hdr->type_specific_len];
memcpy(media_hdr->type_specific_data, &buf[i], media_hdr->type_specific_len);
if (!strncmp((const char *)media_hdr->mime_type, "logical-fileinfo", 16))
{
media_hdr->lstr = new LogicalStream;
UNPACK4(media_hdr->lstr->size, buf, i);
UNPACK2(media_hdr->lstr->object_version, buf, i);
if (media_hdr->lstr->object_version == 0)
{
UNPACK2(media_hdr->lstr->num_physical_streams, buf, i);
if (media_hdr->lstr->num_physical_streams > 0)
{
media_hdr->lstr->physical_stream_numbers = new UINT16[ media_hdr->lstr->num_physical_streams ];
media_hdr->lstr->data_offsets = new UINT32[ media_hdr->lstr->num_physical_streams ];
for (int j=0; j<media_hdr->lstr->num_physical_streams; j++)
{
UNPACK2(media_hdr->lstr->physical_stream_numbers[j], buf, i);
}
for (int j=0; j<media_hdr->lstr->num_physical_streams; j++)
{
UNPACK4(media_hdr->lstr->data_offsets[j], buf, i);
}
}
UNPACK2(media_hdr->lstr->num_rules, buf, i);
if (media_hdr->lstr->num_rules > 0)
{
media_hdr->lstr->rule_to_physical_stream_number_map = new UINT16[ media_hdr->lstr->num_rules ];
for (int j=0; j<media_hdr->lstr->num_rules; j++)
{
UNPACK2(media_hdr->lstr->rule_to_physical_stream_number_map[j], buf, i);
}
}
UNPACK2(media_hdr->lstr->num_properties, buf, i);
if (media_hdr->lstr->num_properties > 0)
{
media_hdr->lstr->properties = new NameValueProperty[ media_hdr->lstr->num_properties ];
for (int j=0; j<media_hdr->lstr->num_properties; j++)
{
UNPACK4(media_hdr->lstr->properties[j].size, buf, i);
UNPACK2(media_hdr->lstr->properties[j].object_version, buf, i);
if (media_hdr->lstr->properties[j].object_version == 0)
{
media_hdr->lstr->properties[j].name_length = buf[i]; i++;
if (media_hdr->lstr->properties[j].name_length)
{
media_hdr->lstr->properties[j].name = new UINT8[ media_hdr->lstr->properties[j].name_length + 1];
memcpy((void *)media_hdr->lstr->properties[j].name, (void *)&buf[i],
media_hdr->lstr->properties[j].name_length);
media_hdr->lstr->properties[j].name[ media_hdr->lstr->properties[j].name_length ] = 0;
i+=media_hdr->lstr->properties[j].name_length;
}
UNPACK4(media_hdr->lstr->properties[j].type, buf, i);
UNPACK2(media_hdr->lstr->properties[j].value_length, buf, i);
if (media_hdr->lstr->properties[j].value_length)
{
media_hdr->lstr->properties[j].value_data = new UINT8[ media_hdr->lstr->properties[j].value_length + 1];
memcpy((void *)media_hdr->lstr->properties[j].value_data, (void *)&buf[i],
media_hdr->lstr->properties[j].value_length);
media_hdr->lstr->properties[j].value_data[ media_hdr->lstr->properties[j].value_length ] = 0;
i+=media_hdr->lstr->properties[j].value_length;
}
}
}
}
}
else
media_hdr->lstr = 0;
}
}
else
media_hdr->type_specific_data = 0;
}
else
{
m_err = -1;
return m_err;
}
return 0;
}
int RealMediaFF::getContentDescription(ContentDescription *cont, const unsigned char *buf, UINT32 object_id, int sz)
{
int i = 0;
// Properties
cont->s.object_id = object_id;
cont->s.size = sz;
i = RMFF_HDR_SIZE;
UNPACK2(cont->object_version, buf, i);
if ( !strncmp((const char *)&cont->s.object_id, "CONT", 4) && cont->object_version == 0)
{
UNPACK2(cont->title_len, buf, i);
cont->title = new UINT8[cont->title_len + 1];
memcpy((void *)cont->title, (void *)&buf[i], cont->title_len); i+=cont->title_len;
m_title = (char *)cont->title;
m_title[cont->title_len] = 0;
UNPACK2(cont->author_len, buf, i);
cont->author = new UINT8[cont->author_len + 1];
memcpy((void *)cont->author, (void *)&buf[i], cont->author_len); i+=cont->author_len;
m_author = (char *)cont->author;
m_author[cont->author_len] = 0;
UNPACK2(cont->copyright_len, buf, i);
cont->copyright = new UINT8[cont->copyright_len + 1];
memcpy((void *)cont->copyright, (void *)&buf[i], cont->copyright_len); i+=cont->copyright_len;
m_copyright = (char *)cont->copyright;
m_copyright[cont->copyright_len] = 0;
UNPACK2(cont->comment_len, buf, i);
cont->comment = new UINT8[cont->comment_len + 1];
memcpy((void *)cont->comment, (void *)&buf[i], cont->comment_len); i+=cont->comment_len;
m_comment = (char *)cont->comment;
m_comment[cont->comment_len] = 0;
}
else
{
m_err = -1;
return m_err;
}
return 0;
}
int RealMediaFF::seekChunk(UINT32 object_id)
{
if (!m_err)
{
off_t s, tot;
UINT32 oid = 0, sz = 0;
unsigned char buf[255];
int nbytes = 0;
if ( (s = lseek(m_fd, 0, SEEK_SET)) != 0)
return -1;
tot = 0;
while( (nbytes = getHdr(buf, 255, oid, sz)) == RMFF_HDR_SIZE && memcmp((void *)&oid, (void *)&object_id, 4) )
{
tot += sz;
if (sz > (unsigned) RMFF_HDR_SIZE)
{
if ( (s = lseek(m_fd, sz - RMFF_HDR_SIZE, SEEK_CUR)) != tot )
return -1;
}
else
return -1; // bail in this case, since the chuck sz includes the header size
}
if ( (s = lseek(m_fd, -RMFF_HDR_SIZE, SEEK_CUR)) != tot )
return -1;
return s;
}
return -1;
}
int RealMediaFF::getMDProperties(MDProperties *props, const unsigned char *buf)
{
int i = 0;
int start = i;
UNPACK4(props->size, buf, i);
UNPACK4(props->type, buf, i);
UNPACK4(props->flags, buf, i);
UNPACK4(props->value_offset, buf, i);
UNPACK4(props->subproperties_offset, buf, i);
UNPACK4(props->num_subproperties, buf, i);
UNPACK4(props->name_length, buf, i);
props->name = new UINT8[ props->name_length + 1 ];
memcpy((void *)props->name, (void *)&buf[i], props->name_length);
props->name[ props->name_length ] = 0;
i+=props->name_length;
i = start + props->value_offset;
UNPACK4(props->value_length, buf, i);
props->value = new UINT8[ props->value_length ];
memcpy( (void *) props->value, (void *)&buf[i], props->value_length );
if ( (props->type == MPT_ULONG) || (props->type == MPT_FLAG && props->value_length == 4) )
{
// wOOt! the Year is a ULONG, and its stored little endian?! my guess is this is a bug in
// RealPlayer 10 for Windows (where I created my test files)
// This hack is intended to ensure that we at least interpret the Year properly.
if (!strcmp((char *)props->name, "Year"))
{
if ( *(unsigned long *)props->value > 65536 )
{
*(unsigned long *)(props->value) = ntohl(*(unsigned long *)(props->value));
m_flipYearInMetadataSection = true;
}
else
m_flipYearInMetadataSection = false;
}
else
*(unsigned long *)(props->value) = ntohl(*(unsigned long *)(props->value));
}
i += props->value_length;
i = start + props->subproperties_offset;
props->subproperties_list = new PropListEntry[ props->num_subproperties ];
for (int j=0; j<(int)props->num_subproperties; j++)
{
UNPACK4(props->subproperties_list[j].offset, buf, i);
UNPACK4(props->subproperties_list[j].num_props_for_name, buf, i);
}
props->subproperties = new MDProperties[ props->num_subproperties ];
for (int j=0; j<(int)props->num_subproperties; j++)
{
i = start + props->subproperties_list[j].offset;
getMDProperties(&props->subproperties[j], &buf[i]);
}
return 0;
}
int RealMediaFF::initMetadataSection()
{
UINT32 object_id;
off_t s;
int nbytes;
unsigned char buf[65536];
UINT32 consumed;
memcpy((void *)&object_id, "RMMD", 4);
if ( (s = seekChunk(object_id)) < 0 )
{
m_err = -1;
return m_err;
}
m_md = new MetadataSection;
consumed = 0;
nbytes = getChunk(buf, 65536, m_md->s.object_id, m_md->s.size, consumed);
if (nbytes < 0 || m_md->s.size != consumed || memcmp((void *)&m_md->s.object_id, "RMMD", 4))
{
//std::cerr << "SERIOUS ERROR - not able to find the chunk I just seek'd to!\n";
m_err = -1;
return m_err;
}
// Properties
int i = RMFF_HDR_SIZE;
memcpy((void *)&m_md->object_id, (void *)&buf[i], 4); i+=4;
UNPACK4(m_md->object_version, buf, i);
if ( !strncmp((const char *)&m_md->s.object_id, "RMMD", 4) )
{
if (!getMDProperties(&m_md->properties, &buf[i]))
saveHeader(m_md);
}
else
{
m_err = -1;
return m_err;
}
return 0;
}
#ifdef TESTING
void RealMediaFF::printRealFileHeader(std::ostream &os)
{
char object_id[5];
if (m_hdr)
{
strncpy(object_id, (const char *)&m_hdr->s.object_id, 4);
object_id[4]=0;
os << "HDR object_id: " << object_id << std::endl;
os << "HDR size: " << m_hdr->s.size << std::endl;
os << "HDR object version: " << m_hdr->object_version << std::endl;
os << "HDR file version: " << m_hdr->file_version << std::endl;
os << "HDR num headers: " << m_hdr->num_headers << std::endl;
}
}
void RealMediaFF::printRealPropHeader(std::ostream &os)
{
char object_id[5];
if (m_props)
{
strncpy(object_id, (const char *)&m_props->s.object_id, 4);
object_id[4]=0;
os << "PROPS object_id: " << object_id << std::endl;
os << "PROPS size: " << m_props->s.size << std::endl;
os << "PROPS object_version: " << m_props->object_version << std::endl;
os << "PROPS max_bit_rate: " << m_props->max_bit_rate << std::endl;
os << "PROPS avg_bit_rate: " << m_props->avg_bit_rate << std::endl;
os << "PROPS max_packet_size: " << m_props->max_packet_size << std::endl;
os << "PROPS avg_packet_size: " << m_props->avg_packet_size << std::endl;
os << "PROPS num_packets: " << m_props->num_packets << std::endl;
os << "PROPS duration: " << m_props->duration << std::endl;
os << "PROPS preroll: " << m_props->preroll << std::endl;
os << "PROPS index_offset: " << m_props->index_offset << std::endl;
os << "PROPS data_offset: " << m_props->data_offset << std::endl;
os << "PROPS num_streams: " << m_props->num_streams << std::endl;
os << "PROPS flags: " << m_props->flags << std::endl;
}
}
void RealMediaFF::printMediaPropHeaders(std::ostream &os)
{
int i = 0;
char object_id[5];
MediaProperties *media_hdr = (MediaProperties *)m_head;
while (media_hdr)
{
strncpy(object_id, (const char *)&media_hdr->s.object_id, 4);
object_id[4]=0;
if (!strncmp(object_id, "MDPR", 4))
{
os << "MEDIA HDR" << i << " object_id: " << object_id << std::endl;
os << "MEDIA HDR" << i << " size: " << media_hdr->s.size << std::endl;
os << "MEDIA HDR" << i << " max_bit_rate: " << media_hdr->max_bit_rate << std::endl;
os << "MEDIA HDR" << i << " avg_bit_rate: " << media_hdr->avg_bit_rate << std::endl;
os << "MEDIA HDR" << i << " max_packet_size: " << media_hdr->max_packet_size << std::endl;
os << "MEDIA HDR" << i << " avg_packet_size: " << media_hdr->avg_packet_size << std::endl;
os << "MEDIA HDR" << i << " start_time: " << media_hdr->start_time << std::endl;
os << "MEDIA HDR" << i << " preroll: " << media_hdr->preroll << std::endl;
os << "MEDIA HDR" << i << " duration: " << media_hdr->duration << std::endl;
os << "MEDIA HDR" << i << " stream_name: " << media_hdr->stream_name << std::endl;
os << "MEDIA HDR" << i << " mime type: " << media_hdr->mime_type << std::endl;
if (media_hdr->lstr)
{
os << "MEDIA HDR" << i << " LOGSTR info size: " << media_hdr->lstr->size << std::endl;
os << "MEDIA HDR" << i << " LOGSTR info num_physical_streams: " << media_hdr->lstr->num_physical_streams << std::endl;
os << "MEDIA HDR" << i << " LOGSTR info num_rules: " << media_hdr->lstr->num_rules << std::endl;
os << "MEDIA HDR" << i << " LOGSTR info num_properties: " << media_hdr->lstr->num_properties << std::endl;
for (int j=0; media_hdr->lstr->properties && j<media_hdr->lstr->num_properties; j++)
{
if (media_hdr->lstr->properties[j].name)
os << "MEDIA HDR" << i << " LOGSTR info prop name: " << media_hdr->lstr->properties[j].name << std::endl;
os << "MEDIA HDR" << i << " LOGSTR info prop type: " << media_hdr->lstr->properties[j].type << std::endl;
os << "MEDIA HDR" << i << " LOGSTR info prop value_length: " << media_hdr->lstr->properties[j].value_length << std::endl;
if (media_hdr->lstr->properties[j].value_data)
{
if (media_hdr->lstr->properties[j].type == 0)
os << "MEDIA HDR" << i << " LOGSTR info prop value: " <<
*(unsigned long *)media_hdr->lstr->properties[j].value_data << std::endl;
else if (media_hdr->lstr->properties[j].type == 2)
os << "MEDIA HDR" << i << " LOGSTR info prop value: " << media_hdr->lstr->properties[j].value_data << std::endl;
else
os << "MEDIA HDR" << i << " LOGSTR info prop value: <binary>\n";
}
}
}
i++;
}
media_hdr = (MediaProperties *)media_hdr->fwd;
}
}
void RealMediaFF::printContentDescription(std::ostream &os)
{
char object_id[5];
if (m_contenthdr)
{
strncpy(object_id, (const char *)&m_contenthdr->s.object_id, 4);
object_id[4]=0;
os << "CONT object_id: " << object_id << std::endl;
os << "CONT title(" << m_contenthdr->title_len << "):\t\t<" << m_contenthdr->title << ">" << std::endl;
os << "CONT author(" << m_contenthdr->author_len << "):\t\t<" << m_contenthdr->author << ">" << std::endl;
os << "CONT copyright(" << m_contenthdr->copyright_len << "):\t\t<" << m_contenthdr->copyright << ">" << std::endl;
os << "CONT comment(" << m_contenthdr->comment_len << "):\t\t<" << m_contenthdr->comment << ">" << std::endl;
}
}
void RealMediaFF::printID3v1Tag(std::ostream &os)
{
if (m_id3v1tag)
{
os << "ID3 tag : " << ID3v1::Tag::fileIdentifier() << std::endl;
os << "ID3 title : " << m_id3v1tag->tag()->title() << std::endl;
os << "ID3 artist : " << m_id3v1tag->tag()->artist() << std::endl;
os << "ID3 album : " << m_id3v1tag->tag()->album() << std::endl;
os << "ID3 year : " << m_id3v1tag->tag()->year() << std::endl;
os << "ID3 comment : " << m_id3v1tag->tag()->comment() << std::endl;
os << "ID3 track : " << m_id3v1tag->tag()->track() << std::endl;
os << "ID3 genre : " << m_id3v1tag->tag()->genre() << std::endl;
}
}
void RealMediaFF::printMDProperties(std::ostream &os, char *nam, MDProperties *props)
{
char name[8192];
strcpy(name, nam);
os << "MDP subproperties for: " << name << std::endl;
os << "MD properties.size: " << props->size << std::endl;
os << "MD properties.type: " << props->type << std::endl;
os << "MD properties.flags: " << props->flags << std::endl;
os << "MD properties.value_offset: " << props->value_offset << std::endl;
os << "MD properties.subproperties_offset: " << props->subproperties_offset << std::endl;
os << "MD properties.num_subproperties: " << props->num_subproperties << std::endl;
os << "MD properties.name_length: " << props->name_length << std::endl;
os << "MD properties.name: " << (char *)props->name << std::endl;
os << "MD properties.value_length: " << props->value_length << std::endl;
switch (props->type)
{
case MPT_TEXT:
case MPT_TEXTLIST:
case MPT_URL:
case MPT_DATE:
case MPT_FILENAME:
os << "MD properties.value: " << (char *)props->value << std::endl;
break;
case MPT_FLAG:
if (props->value_length == 4)
os << "MD properties.value: " << *(unsigned long *)props->value << std::endl;
else
os << "MD properties.value: " << *props->value << std::endl;
break;
case MPT_ULONG:
os << "MD properties.value: " << *(unsigned long *)props->value << std::endl;
break;
case MPT_BINARY:
os << "MD properties.value: <binary>" << std::endl;
break;
case MPT_GROUPING:
os << "MD properties.value: <grouping>" << std::endl;
break;
case MPT_REFERENCE:
os << "MD properties.value: <reference>" << std::endl;
break;
}
if (props->num_subproperties)
{
strcat(name, (char *)props->name);
strcat(name, "/");
}
for (int j=0; j<props->num_subproperties; j++)
{
os << "MD properties.sub_properties_list[" << j << "].offset: " <<
props->subproperties_list[j].offset << std::endl;
os << "MD properties.sub_properties_list[" << j << "].num_props_for_name: " <<
props->subproperties_list[j].num_props_for_name << std::endl;
os << std::endl;
printMDProperties(os, name, &props->subproperties[j]);
}
}
void RealMediaFF::printMetadataSection(std::ostream &os)
{
char name[8192];
char oid[5];
memcpy((void *)oid, (void *)&m_md->s.object_id, 4);
oid[4] = 0;
os << "MetadataSection: ";
os << "MS object_id: " << oid << std::endl;
os << "MS SIZE: " << m_md->s.size << std::endl;
os << "MD object_id: " << (char *)&m_md->object_id << std::endl;
os << "MD object_version: " << m_md->object_version << std::endl;
os << std::endl;
strcpy(name, "");
printMDProperties(os, name, &m_md->properties);
}
std::ostream &RealMediaFF::operator<<(std::ostream &os)
{
if (m_readProperties)
{
printRealFileHeader(os);
printRealPropHeader(os);
printMediaPropHeaders(os);
printContentDescription(os);
printMetadataSection(os);
}
printID3v1Tag(os);
return os;
}
std::ostream &operator<<(std::ostream &os, RealMediaFF &rmff)
{
rmff.operator<<(os);
return os;
}
int main(int argc, char *argv[])
{
char *m_filen;
if (argc > 1)
m_filen = argv[1];
else
m_filen = "./Drown.ra";
RealMediaFF rmff(m_filen);
if (!rmff.err())
std::cout << rmff;
/*
UINT32 oid = 0;
memcpy( (void *)&oid, (void *) ".RMF", 4);
off_t pos = rmff.seekChunk(oid);
std::cout << "POS=" << pos << std::endl;
memcpy( (void *)&oid, (void *) "MDPR", 4);
pos = rmff.seekChunk(oid);
std::cout << "POS=" << pos << std::endl;
memcpy( (void *)&oid, (void *) "RMMD", 4);
pos = rmff.seekChunk(oid);
std::cout << "POS=" << pos << std::endl;
*/
}
#endif
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