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mpv/stream/realrtsp/rmff.c

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/*
* This file was ported to MPlayer from xine CVS rmff.c,v 1.3 2002/12/24 01:30:22
*/
/*
* Copyright (C) 2002 the xine project
*
* This file is part of xine, a free video player.
*
* xine 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.
*
* xine 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
*
* functions for real media file format
* adopted from joschkas real tools
*/
#include "rmff.h"
#include "xbuffer.h"
#include "mp_msg.h"
#include "libavutil/intreadwrite.h"
/*
#define LOG
*/
static void hexdump (const char *buf, int length) {
int i;
printf ("rmff: ascii>");
for (i = 0; i < length; i++) {
unsigned char c = buf[i];
if ((c >= 32) && (c <= 128))
printf ("%c", c);
else
printf (".");
}
printf ("\n");
printf ("rmff: hexdump> ");
for (i = 0; i < length; i++) {
unsigned char c = buf[i];
printf ("%02x", c);
if ((i % 16) == 15)
printf ("\nrmff: ");
if ((i % 2) == 1)
printf (" ");
}
printf ("\n");
}
/*
* writes header data to a buffer
*/
static int rmff_dump_fileheader(rmff_fileheader_t *fileheader, char *buffer, int bufsize) {
if (!fileheader) return 0;
if (bufsize < RMFF_FILEHEADER_SIZE)
return -1;
AV_WB32(buffer, fileheader->object_id);
AV_WB32(buffer+4, fileheader->size);
AV_WB16(buffer+8, fileheader->object_version);
AV_WB32(buffer+10, fileheader->file_version);
AV_WB32(buffer+14, fileheader->num_headers);
return RMFF_FILEHEADER_SIZE;
}
static int rmff_dump_prop(rmff_prop_t *prop, char *buffer, int bufsize) {
if (!prop) return 0;
if (bufsize < RMFF_PROPHEADER_SIZE)
return -1;
AV_WB32(buffer, prop->object_id);
AV_WB32(buffer+4, prop->size);
AV_WB16(buffer+8, prop->object_version);
AV_WB32(buffer+10, prop->max_bit_rate);
AV_WB32(buffer+14, prop->avg_bit_rate);
AV_WB32(buffer+18, prop->max_packet_size);
AV_WB32(buffer+22, prop->avg_packet_size);
AV_WB32(buffer+26, prop->num_packets);
AV_WB32(buffer+30, prop->duration);
AV_WB32(buffer+34, prop->preroll);
AV_WB32(buffer+38, prop->index_offset);
AV_WB32(buffer+42, prop->data_offset);
AV_WB16(buffer+46, prop->num_streams);
AV_WB16(buffer+48, prop->flags);
return RMFF_PROPHEADER_SIZE;
}
static int rmff_dump_mdpr(rmff_mdpr_t *mdpr, char *buffer, int bufsize) {
int s1, s2, s3;
if (!mdpr) return 0;
if (!(bufsize > RMFF_MDPRHEADER_SIZE + mdpr->stream_name_size + mdpr->mime_type_size &&
(unsigned)bufsize - RMFF_MDPRHEADER_SIZE - mdpr->stream_name_size - mdpr->mime_type_size > mdpr->type_specific_len))
return -1;
AV_WB32(buffer, mdpr->object_id);
AV_WB32(buffer+4, mdpr->size);
AV_WB16(buffer+8, mdpr->object_version);
AV_WB16(buffer+10, mdpr->stream_number);
AV_WB32(buffer+12, mdpr->max_bit_rate);
AV_WB32(buffer+16, mdpr->avg_bit_rate);
AV_WB32(buffer+20, mdpr->max_packet_size);
AV_WB32(buffer+24, mdpr->avg_packet_size);
AV_WB32(buffer+28, mdpr->start_time);
AV_WB32(buffer+32, mdpr->preroll);
AV_WB32(buffer+36, mdpr->duration);
buffer[40] = mdpr->stream_name_size;
s1=mdpr->stream_name_size;
memcpy(&buffer[41], mdpr->stream_name, s1);
buffer[41+s1] = mdpr->mime_type_size;
s2=mdpr->mime_type_size;
memcpy(&buffer[42+s1], mdpr->mime_type, s2);
AV_WB32(buffer+42+s1+s2, mdpr->type_specific_len);
s3=mdpr->type_specific_len;
memcpy(&buffer[46+s1+s2], mdpr->type_specific_data, s3);
return RMFF_MDPRHEADER_SIZE + s1 + s2 + s3;
}
static int rmff_dump_cont(rmff_cont_t *cont, char *buffer, int bufsize) {
int p;
if (!cont) return 0;
if (bufsize < RMFF_CONTHEADER_SIZE + cont->title_len + cont->author_len +
cont->copyright_len + cont->comment_len)
return -1;
AV_WB32(buffer, cont->object_id);
AV_WB32(buffer+4, cont->size);
AV_WB16(buffer+8, cont->object_version);
AV_WB16(buffer+10, cont->title_len);
memcpy(&buffer[12], cont->title, cont->title_len);
p=12+cont->title_len;
AV_WB16(buffer+p, cont->author_len);
memcpy(&buffer[p+2], cont->author, cont->author_len);
p+=2+cont->author_len;
AV_WB16(buffer+p, cont->copyright_len);
memcpy(&buffer[p+2], cont->copyright, cont->copyright_len);
p+=2+cont->copyright_len;
AV_WB16(buffer+p, cont->comment_len);
memcpy(&buffer[p+2], cont->comment, cont->comment_len);
return RMFF_CONTHEADER_SIZE + cont->title_len + cont->author_len +
cont->copyright_len + cont->comment_len;
}
static int rmff_dump_dataheader(rmff_data_t *data, char *buffer, int bufsize) {
if (!data) return 0;
if (bufsize < RMFF_DATAHEADER_SIZE)
return -1;
AV_WB32(buffer, data->object_id);
AV_WB32(buffer+4, data->size);
AV_WB16(buffer+8, data->object_version);
AV_WB32(buffer+10, data->num_packets);
AV_WB32(buffer+14, data->next_data_header);
return RMFF_DATAHEADER_SIZE;
}
int rmff_dump_header(rmff_header_t *h, char *buffer, int max) {
int written=0, size;
rmff_mdpr_t **stream=h->streams;
if ((size=rmff_dump_fileheader(h->fileheader, &buffer[written], max)) < 0)
goto buftoosmall;
written+=size;
max -= size;
if ((size=rmff_dump_prop(h->prop, &buffer[written], max)) < 0)
goto buftoosmall;
written+=size;
max -= size;
if ((size=rmff_dump_cont(h->cont, &buffer[written], max)) < 0)
goto buftoosmall;
written+=size;
max -= size;
if (stream)
{
while(*stream)
{
if ((size=rmff_dump_mdpr(*stream, &buffer[written], max)) < 0)
goto buftoosmall;
written+=size;
max -= size;
stream++;
}
}
if ((size=rmff_dump_dataheader(h->data, &buffer[written], max)) < 0)
goto buftoosmall;
written+=size;
return written;
buftoosmall:
mp_msg(MSGT_STREAM, MSGL_ERR, "rmff_dumpheader: buffer too small, aborting. Please report\n");
return -1;
}
void rmff_dump_pheader(rmff_pheader_t *h, char *data) {
data[0]=(h->object_version>>8) & 0xff;
data[1]=h->object_version & 0xff;
data[2]=(h->length>>8) & 0xff;
data[3]=h->length & 0xff;
data[4]=(h->stream_number>>8) & 0xff;
data[5]=h->stream_number & 0xff;
data[6]=(h->timestamp>>24) & 0xff;
data[7]=(h->timestamp>>16) & 0xff;
data[8]=(h->timestamp>>8) & 0xff;
data[9]=h->timestamp & 0xff;
data[10]=h->reserved;
data[11]=h->flags;
}
static rmff_fileheader_t *rmff_scan_fileheader(const char *data) {
rmff_fileheader_t *fileheader=malloc(sizeof(rmff_fileheader_t));
fileheader->object_id=AV_RB32(data);
fileheader->size=AV_RB32(&data[4]);
fileheader->object_version=AV_RB16(&data[8]);
if (fileheader->object_version != 0)
{
mp_msg(MSGT_STREAM, MSGL_WARN, "warning: unknown object version in .RMF: 0x%04x\n",
fileheader->object_version);
}
fileheader->file_version=AV_RB32(&data[10]);
fileheader->num_headers=AV_RB32(&data[14]);
return fileheader;
}
static rmff_prop_t *rmff_scan_prop(const char *data) {
rmff_prop_t *prop=malloc(sizeof(rmff_prop_t));
prop->object_id=AV_RB32(data);
prop->size=AV_RB32(&data[4]);
prop->object_version=AV_RB16(&data[8]);
if (prop->object_version != 0)
{
mp_msg(MSGT_STREAM, MSGL_WARN, "warning: unknown object version in PROP: 0x%04x\n",
prop->object_version);
}
prop->max_bit_rate=AV_RB32(&data[10]);
prop->avg_bit_rate=AV_RB32(&data[14]);
prop->max_packet_size=AV_RB32(&data[18]);
prop->avg_packet_size=AV_RB32(&data[22]);
prop->num_packets=AV_RB32(&data[26]);
prop->duration=AV_RB32(&data[30]);
prop->preroll=AV_RB32(&data[34]);
prop->index_offset=AV_RB32(&data[38]);
prop->data_offset=AV_RB32(&data[42]);
prop->num_streams=AV_RB16(&data[46]);
prop->flags=AV_RB16(&data[48]);
return prop;
}
static rmff_mdpr_t *rmff_scan_mdpr(const char *data) {
rmff_mdpr_t *mdpr=malloc(sizeof(rmff_mdpr_t));
mdpr->object_id=AV_RB32(data);
mdpr->size=AV_RB32(&data[4]);
mdpr->object_version=AV_RB16(&data[8]);
if (mdpr->object_version != 0)
{
mp_msg(MSGT_STREAM, MSGL_WARN, "warning: unknown object version in MDPR: 0x%04x\n",
mdpr->object_version);
}
mdpr->stream_number=AV_RB16(&data[10]);
mdpr->max_bit_rate=AV_RB32(&data[12]);
mdpr->avg_bit_rate=AV_RB32(&data[16]);
mdpr->max_packet_size=AV_RB32(&data[20]);
mdpr->avg_packet_size=AV_RB32(&data[24]);
mdpr->start_time=AV_RB32(&data[28]);
mdpr->preroll=AV_RB32(&data[32]);
mdpr->duration=AV_RB32(&data[36]);
mdpr->stream_name_size=data[40];
mdpr->stream_name=malloc(mdpr->stream_name_size+1);
memcpy(mdpr->stream_name, &data[41], mdpr->stream_name_size);
mdpr->stream_name[mdpr->stream_name_size]=0;
mdpr->mime_type_size=data[41+mdpr->stream_name_size];
mdpr->mime_type=malloc(mdpr->mime_type_size+1);
memcpy(mdpr->mime_type, &data[42+mdpr->stream_name_size], mdpr->mime_type_size);
mdpr->mime_type[mdpr->mime_type_size]=0;
mdpr->type_specific_len=AV_RB32(&data[42+mdpr->stream_name_size+mdpr->mime_type_size]);
mdpr->type_specific_data=malloc(mdpr->type_specific_len);
memcpy(mdpr->type_specific_data,
&data[46+mdpr->stream_name_size+mdpr->mime_type_size], mdpr->type_specific_len);
return mdpr;
}
static rmff_cont_t *rmff_scan_cont(const char *data) {
rmff_cont_t *cont=malloc(sizeof(rmff_cont_t));
int pos;
cont->object_id=AV_RB32(data);
cont->size=AV_RB32(&data[4]);
cont->object_version=AV_RB16(&data[8]);
if (cont->object_version != 0)
{
mp_msg(MSGT_STREAM, MSGL_WARN, "warning: unknown object version in CONT: 0x%04x\n",
cont->object_version);
}
cont->title_len=AV_RB16(&data[10]);
cont->title=malloc(cont->title_len+1);
memcpy(cont->title, &data[12], cont->title_len);
cont->title[cont->title_len]=0;
pos=cont->title_len+12;
cont->author_len=AV_RB16(&data[pos]);
cont->author=malloc(cont->author_len+1);
memcpy(cont->author, &data[pos+2], cont->author_len);
cont->author[cont->author_len]=0;
pos=pos+2+cont->author_len;
cont->copyright_len=AV_RB16(&data[pos]);
cont->copyright=malloc(cont->copyright_len+1);
memcpy(cont->copyright, &data[pos+2], cont->copyright_len);
cont->copyright[cont->copyright_len]=0;
pos=pos+2+cont->copyright_len;
cont->comment_len=AV_RB16(&data[pos]);
cont->comment=malloc(cont->comment_len+1);
memcpy(cont->comment, &data[pos+2], cont->comment_len);
cont->comment[cont->comment_len]=0;
return cont;
}
static rmff_data_t *rmff_scan_dataheader(const char *data) {
rmff_data_t *dh=malloc(sizeof(rmff_data_t));
dh->object_id=AV_RB32(data);
dh->size=AV_RB32(&data[4]);
dh->object_version=AV_RB16(&data[8]);
if (dh->object_version != 0)
{
mp_msg(MSGT_STREAM, MSGL_WARN, "warning: unknown object version in DATA: 0x%04x\n",
dh->object_version);
}
dh->num_packets=AV_RB32(&data[10]);
dh->next_data_header=AV_RB32(&data[14]);
return dh;
}
rmff_header_t *rmff_scan_header(const char *data) {
rmff_header_t *header=malloc(sizeof(rmff_header_t));
rmff_mdpr_t *mdpr=NULL;
int chunk_size;
uint32_t chunk_type;
const char *ptr=data;
int i;
header->fileheader=NULL;
header->prop=NULL;
header->cont=NULL;
header->data=NULL;
chunk_type = AV_RB32(ptr);
if (chunk_type != RMF_TAG)
{
mp_msg(MSGT_STREAM, MSGL_ERR, "rmff: not an real media file header (.RMF tag not found).\n");
free(header);
return NULL;
}
header->fileheader=rmff_scan_fileheader(ptr);
ptr += header->fileheader->size;
header->streams=malloc(sizeof(rmff_mdpr_t*)*(header->fileheader->num_headers));
for (i=0; i<header->fileheader->num_headers; i++) {
header->streams[i]=NULL;
}
for (i=1; i<header->fileheader->num_headers; i++) {
chunk_type = AV_RB32(ptr);
if (ptr[0] == 0)
{
mp_msg(MSGT_STREAM, MSGL_WARN, "rmff: warning: only %d of %d header found.\n", i, header->fileheader->num_headers);
break;
}
chunk_size=1;
switch (chunk_type) {
case PROP_TAG:
header->prop=rmff_scan_prop(ptr);
chunk_size=header->prop->size;
break;
case MDPR_TAG:
mdpr=rmff_scan_mdpr(ptr);
chunk_size=mdpr->size;
header->streams[mdpr->stream_number]=mdpr;
break;
case CONT_TAG:
header->cont=rmff_scan_cont(ptr);
chunk_size=header->cont->size;
break;
case DATA_TAG:
header->data=rmff_scan_dataheader(ptr);
chunk_size=34; /* hard coded header size */
break;
default:
mp_msg(MSGT_STREAM, MSGL_WARN, "unknown chunk\n");
hexdump(ptr,10);
chunk_size=1;
break;
}
ptr+=chunk_size;
}
return header;
}
rmff_header_t *rmff_scan_header_stream(int fd) {
rmff_header_t *header;
char *buf=xbuffer_init(1024);
int index=0;
uint32_t chunk_type;
uint32_t chunk_size;
do {
buf = xbuffer_ensure_size(buf, index+8);
recv(fd, buf+index, 8, 0);
chunk_type=AV_RB32(buf+index); index+=4;
chunk_size=AV_RB32(buf+index); index+=4;
switch (chunk_type) {
case DATA_TAG:
chunk_size=18;
case MDPR_TAG:
case CONT_TAG:
case RMF_TAG:
case PROP_TAG:
buf = xbuffer_ensure_size(buf, index+chunk_size-8);
recv(fd, buf+index, (chunk_size-8), 0);
index+=(chunk_size-8);
break;
default:
mp_msg(MSGT_STREAM, MSGL_WARN, "rmff_scan_header_stream: unknown chunk");
hexdump(buf+index-8, 8);
chunk_type=DATA_TAG;
}
} while (chunk_type != DATA_TAG);
header = rmff_scan_header(buf);
xbuffer_free(buf);
return header;
}
void rmff_scan_pheader(rmff_pheader_t *h, char *data) {
h->object_version=AV_RB16(data);
h->length=AV_RB16(data+2);
h->stream_number=AV_RB16(data+4);
h->timestamp=AV_RB32(data+6);
h->reserved=(uint8_t)data[10];
h->flags=(uint8_t)data[11];
}
rmff_fileheader_t *rmff_new_fileheader(uint32_t num_headers) {
rmff_fileheader_t *fileheader=malloc(sizeof(rmff_fileheader_t));
fileheader->object_id=RMF_TAG;
fileheader->size=18;
fileheader->object_version=0;
fileheader->file_version=0;
fileheader->num_headers=num_headers;
return fileheader;
}
rmff_prop_t *rmff_new_prop (
uint32_t max_bit_rate,
uint32_t avg_bit_rate,
uint32_t max_packet_size,
uint32_t avg_packet_size,
uint32_t num_packets,
uint32_t duration,
uint32_t preroll,
uint32_t index_offset,
uint32_t data_offset,
uint16_t num_streams,
uint16_t flags ) {
rmff_prop_t *prop=malloc(sizeof(rmff_prop_t));
prop->object_id=PROP_TAG;
prop->size=50;
prop->object_version=0;
prop->max_bit_rate=max_bit_rate;
prop->avg_bit_rate=avg_bit_rate;
prop->max_packet_size=max_packet_size;
prop->avg_packet_size=avg_packet_size;
prop->num_packets=num_packets;
prop->duration=duration;
prop->preroll=preroll;
prop->index_offset=index_offset;
prop->data_offset=data_offset;
prop->num_streams=num_streams;
prop->flags=flags;
return prop;
}
rmff_mdpr_t *rmff_new_mdpr(
uint16_t stream_number,
uint32_t max_bit_rate,
uint32_t avg_bit_rate,
uint32_t max_packet_size,
uint32_t avg_packet_size,
uint32_t start_time,
uint32_t preroll,
uint32_t duration,
const char *stream_name,
const char *mime_type,
uint32_t type_specific_len,
const char *type_specific_data ) {
rmff_mdpr_t *mdpr=malloc(sizeof(rmff_mdpr_t));
mdpr->object_id=MDPR_TAG;
mdpr->object_version=0;
mdpr->stream_number=stream_number;
mdpr->max_bit_rate=max_bit_rate;
mdpr->avg_bit_rate=avg_bit_rate;
mdpr->max_packet_size=max_packet_size;
mdpr->avg_packet_size=avg_packet_size;
mdpr->start_time=start_time;
mdpr->preroll=preroll;
mdpr->duration=duration;
mdpr->stream_name_size=0;
if (stream_name) {
mdpr->stream_name=strdup(stream_name);
mdpr->stream_name_size=strlen(stream_name);
}
mdpr->mime_type_size=0;
if (mime_type) {
mdpr->mime_type=strdup(mime_type);
mdpr->mime_type_size=strlen(mime_type);
}
mdpr->type_specific_len=type_specific_len;
mdpr->type_specific_data=malloc(type_specific_len);
memcpy(mdpr->type_specific_data,type_specific_data,type_specific_len);
mdpr->mlti_data=NULL;
mdpr->size=mdpr->stream_name_size+mdpr->mime_type_size+mdpr->type_specific_len+46;
return mdpr;
}
rmff_cont_t *rmff_new_cont(const char *title, const char *author, const char *copyright, const char *comment) {
rmff_cont_t *cont=malloc(sizeof(rmff_cont_t));
cont->object_id=CONT_TAG;
cont->object_version=0;
cont->title=NULL;
cont->author=NULL;
cont->copyright=NULL;
cont->comment=NULL;
cont->title_len=0;
cont->author_len=0;
cont->copyright_len=0;
cont->comment_len=0;
if (title) {
cont->title_len=strlen(title);
cont->title=strdup(title);
}
if (author) {
cont->author_len=strlen(author);
cont->author=strdup(author);
}
if (copyright) {
cont->copyright_len=strlen(copyright);
cont->copyright=strdup(copyright);
}
if (comment) {
cont->comment_len=strlen(comment);
cont->comment=strdup(comment);
}
cont->size=cont->title_len+cont->author_len+cont->copyright_len+cont->comment_len+18;
return cont;
}
rmff_data_t *rmff_new_dataheader(uint32_t num_packets, uint32_t next_data_header) {
rmff_data_t *data=malloc(sizeof(rmff_data_t));
data->object_id=DATA_TAG;
data->size=18;
data->object_version=0;
data->num_packets=num_packets;
data->next_data_header=next_data_header;
return data;
}
void rmff_print_header(rmff_header_t *h) {
rmff_mdpr_t **stream;
if(!h) {
printf("rmff_print_header: NULL given\n");
return;
}
if(h->fileheader)
{
printf("\nFILE:\n");
printf("file version : %d\n", h->fileheader->file_version);
printf("number of headers : %d\n", h->fileheader->num_headers);
}
if(h->cont)
{
printf("\nCONTENT:\n");
printf("title : %s\n", h->cont->title);
printf("author : %s\n", h->cont->author);
printf("copyright : %s\n", h->cont->copyright);
printf("comment : %s\n", h->cont->comment);
}
if(h->prop)
{
printf("\nSTREAM PROPERTIES:\n");
printf("bit rate (max/avg) : %i/%i\n", h->prop->max_bit_rate, h->prop->avg_bit_rate);
printf("packet size (max/avg) : %i/%i bytes\n", h->prop->max_packet_size, h->prop->avg_packet_size);
printf("packets : %i\n", h->prop->num_packets);
printf("duration : %i ms\n", h->prop->duration);
printf("pre-buffer : %i ms\n", h->prop->preroll);
printf("index offset : %i bytes\n", h->prop->index_offset);
printf("data offset : %i bytes\n", h->prop->data_offset);
printf("media streams : %i\n", h->prop->num_streams);
printf("flags : ");
if (h->prop->flags & PN_SAVE_ENABLED) printf("save_enabled ");
if (h->prop->flags & PN_PERFECT_PLAY_ENABLED) printf("perfect_play_enabled ");
if (h->prop->flags & PN_LIVE_BROADCAST) printf("live_broadcast ");
printf("\n");
}
stream=h->streams;
if(stream)
{
while (*stream)
{
printf("\nSTREAM %i:\n", (*stream)->stream_number);
printf("stream name [mime type] : %s [%s]\n", (*stream)->stream_name, (*stream)->mime_type);
printf("bit rate (max/avg) : %i/%i\n", (*stream)->max_bit_rate, (*stream)->avg_bit_rate);
printf("packet size (max/avg) : %i/%i bytes\n", (*stream)->max_packet_size, (*stream)->avg_packet_size);
printf("start time : %i\n", (*stream)->start_time);
printf("pre-buffer : %i ms\n", (*stream)->preroll);
printf("duration : %i ms\n", (*stream)->duration);
printf("type specific data:\n");
hexdump((*stream)->type_specific_data, (*stream)->type_specific_len);
stream++;
}
}
if(h->data)
{
printf("\nDATA:\n");
printf("size : %i\n", h->data->size);
printf("packets : %i\n", h->data->num_packets);
printf("next DATA : 0x%08x\n", h->data->next_data_header);
}
}
void rmff_fix_header(rmff_header_t *h) {
int num_headers=0;
int header_size=0;
rmff_mdpr_t **streams;
int num_streams=0;
if (!h) {
mp_msg(MSGT_STREAM, MSGL_ERR, "rmff_fix_header: fatal: no header given.\n");
return;
}
if (!h->streams) {
mp_msg(MSGT_STREAM, MSGL_WARN, "rmff_fix_header: warning: no MDPR chunks\n");
} else
{
streams=h->streams;
while (*streams)
{
num_streams++;
num_headers++;
header_size+=(*streams)->size;
streams++;
}
}
if (h->prop) {
if (h->prop->size != 50)
{
#ifdef LOG
printf("rmff_fix_header: correcting prop.size from %i to %i\n", h->prop->size, 50);
#endif
h->prop->size=50;
}
if (h->prop->num_streams != num_streams)
{
#ifdef LOG
printf("rmff_fix_header: correcting prop.num_streams from %i to %i\n", h->prop->num_streams, num_streams);
#endif
h->prop->num_streams=num_streams;
}
num_headers++;
header_size+=50;
} else
mp_msg(MSGT_STREAM, MSGL_WARN, "rmff_fix_header: warning: no PROP chunk.\n");
if (h->cont) {
num_headers++;
header_size+=h->cont->size;
} else
mp_msg(MSGT_STREAM, MSGL_WARN, "rmff_fix_header: warning: no CONT chunk.\n");
if (!h->data) {
#ifdef LOG
printf("rmff_fix_header: no DATA chunk, creating one\n");
#endif
h->data=malloc(sizeof(rmff_data_t));
h->data->object_id=DATA_TAG;
h->data->object_version=0;
h->data->size=34;
h->data->num_packets=0;
h->data->next_data_header=0;
}
num_headers++;
if (!h->fileheader) {
#ifdef LOG
printf("rmff_fix_header: no fileheader, creating one");
#endif
h->fileheader=malloc(sizeof(rmff_fileheader_t));
h->fileheader->object_id=RMF_TAG;
h->fileheader->size=34;
h->fileheader->object_version=0;
h->fileheader->file_version=0;
h->fileheader->num_headers=num_headers+1;
}
header_size+=h->fileheader->size;
num_headers++;
if(h->fileheader->num_headers != num_headers) {
#ifdef LOG
printf("rmff_fix_header: setting num_headers from %i to %i\n", h->fileheader->num_headers, num_headers);
#endif
h->fileheader->num_headers=num_headers;
}
if(h->prop) {
if (h->prop->data_offset != header_size) {
#ifdef LOG
printf("rmff_fix_header: setting prop.data_offset from %i to %i\n", h->prop->data_offset, header_size);
#endif
h->prop->data_offset=header_size;
}
if (h->prop->num_packets == 0) {
int p=(int)(h->prop->avg_bit_rate/8.0*(h->prop->duration/1000.0)/h->prop->avg_packet_size);
#ifdef LOG
printf("rmff_fix_header: assuming prop.num_packets=%i\n", p);
#endif
h->prop->num_packets=p;
}
if (h->data->num_packets == 0) {
#ifdef LOG
printf("rmff_fix_header: assuming data.num_packets=%i\n", h->prop->num_packets);
#endif
h->data->num_packets=h->prop->num_packets;
}
#ifdef LOG
printf("rmff_fix_header: assuming data.size=%i\n", h->prop->num_packets*h->prop->avg_packet_size);
#endif
h->data->size=h->prop->num_packets*h->prop->avg_packet_size;
}
}
int rmff_get_header_size(rmff_header_t *h) {
if (!h) return 0;
if (!h->prop) return -1;
return h->prop->data_offset+18;
}
void rmff_free_header(rmff_header_t *h) {
if (!h) return;
if (h->fileheader) free(h->fileheader);
if (h->prop) free(h->prop);
if (h->data) free(h->data);
if (h->cont)
{
free(h->cont->title);
free(h->cont->author);
free(h->cont->copyright);
free(h->cont->comment);
free(h->cont);
}
if (h->streams)
{
rmff_mdpr_t **s=h->streams;
while(*s) {
free((*s)->stream_name);
free((*s)->mime_type);
free((*s)->type_specific_data);
free(*s);
s++;
}
free(h->streams);
}
free(h);
}
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