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[dvbtools-cvs] dvbsubs README,1.1.1.1,1.2 dvbsubs.c,1.2,1.3
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From: <lin...@us...> - 2002-06-16 16:01:39
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Update of /cvsroot/dvbtools/dvbsubs
In directory usw-pr-cvs1:/tmp/cvs-serv21200
Modified Files:
README dvbsubs.c
Log Message:
added decoding from DVB card
Index: README
===================================================================
RCS file: /cvsroot/dvbtools/dvbsubs/README,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -C2 -d -r1.1.1.1 -r1.2
*** README 15 Jun 2002 23:14:03 -0000 1.1.1.1
--- README 16 Jun 2002 16:01:36 -0000 1.2
***************
*** 4,7 ****
--- 4,23 ----
Program to decode DVB subtitles (ETS 300 743).
+ This is currently just a test program to dump the DVB subtitle stream
+ in XML
+
+ Usage:
+
+ dvbsubs filename.pes
+
+ to decode a PES stream containing DVB subtitles.
+
+ or:
+
+ dvbsubs PID
+
+ to read a PES stream from a DVB card and dump the DVB subtitles.
+
+
Copyright
---------
Index: dvbsubs.c
===================================================================
RCS file: /cvsroot/dvbtools/dvbsubs/dvbsubs.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -C2 -d -r1.2 -r1.3
*** dvbsubs.c 16 Jun 2002 15:28:02 -0000 1.2
--- dvbsubs.c 16 Jun 2002 16:01:36 -0000 1.3
***************
*** 22,30 ****
--- 22,55 ----
#include <stdio.h>
+ #include <stdio.h>
+ #include <stdint.h>
+ #include <sys/types.h>
+ #include <sys/stat.h>
#include <fcntl.h>
+ #include <sys/ioctl.h>
+ #include <unistd.h>
+ #include <time.h>
+ #include <sys/poll.h>
+
+ #include <ost/dmx.h>
unsigned char buf[100000];
int i=0;
+ void set_filt(int fd,uint16_t tt_pid, dmxPesType_t t)
+ {
+ size_t bytesRead;
+ struct dmxPesFilterParams pesFilterParams;
+
+ pesFilterParams.pid = tt_pid;
+ pesFilterParams.input = DMX_IN_FRONTEND;
+ pesFilterParams.output = DMX_OUT_TAP;
+ pesFilterParams.pesType = t;
+ pesFilterParams.flags = DMX_IMMEDIATE_START;
+
+ if (ioctl(fd, DMX_SET_PES_FILTER, &pesFilterParams) < 0)
+ perror("DMX SET PES FILTER:");
+ }
+
void process_page_composition_segment() {
int segment_type,
***************
*** 40,43 ****
--- 65,70 ----
segment_length=(buf[i]<<8)|buf[i+1]; i+=2;
+ j=i+segment_length;
+
page_time_out=buf[i++];
page_version_number=(buf[i]&0xf0)>>4;
***************
*** 45,49 ****
i++;
- j=i+segment_length-2;
printf("<page_composition_segment page_id=\"0x%02x\">\n",page_id);
printf("<page_time_out>%d</page_time_out>\n",page_time_out);
--- 72,75 ----
***************
*** 97,100 ****
--- 123,129 ----
page_id=(buf[i]<<8)|buf[i+1]; i+=2;
segment_length=(buf[i]<<8)|buf[i+1]; i+=2;
+
+ j=i+segment_length;
+
region_id=buf[i++];
region_version_number=(buf[i]&0xf0)>>4;
***************
*** 125,129 ****
printf("<region_2_bit_pixel_code>%d</region_2_bit_pixel_code>\n",region_2_bit_pixel_code);
- j=i+segment_length-10;
printf("<objects>\n");
while (i < j) {
--- 154,157 ----
***************
*** 151,154 ****
--- 179,247 ----
}
+ void process_CLUT_definition_segment() {
+ int page_id,
+ segment_length,
+ CLUT_id,
+ CLUT_version_number;
+
+ int CLUT_entry_id,
+ CLUT_flag_8_bit,
+ CLUT_flag_4_bit,
+ CLUT_flag_2_bit,
+ full_range_flag,
+ Y_value,
+ Cr_value,
+ Cb_value,
+ T_value;
+
+ int j;
+
+ page_id=(buf[i]<<8)|buf[i+1]; i+=2;
+ segment_length=(buf[i]<<8)|buf[i+1]; i+=2;
+ j=i+segment_length;
+
+ CLUT_id=buf[i++];
+ CLUT_version_number=(buf[i]&0xf0)>>4;
+ i++;
+
+ printf("<CLUT_definition_segment page_id=\"0x%02x\" CLUT_id=\"0x%02x\">\n",page_id,CLUT_id);
+
+ printf("<CLUT_version_number>%d</CLUT_version_number>\n",CLUT_version_number);
+ printf("<CLUT_entries>\n");
+ while (i < j) {
+ CLUT_entry_id=buf[i++];
+
+ printf("<CLUT_entry id=\"0x%02x\">\n",CLUT_entry_id);
+ CLUT_flag_2_bit=(buf[i]&0x80)>>7;
+ CLUT_flag_4_bit=(buf[i]&0x40)>>6;
+ CLUT_flag_8_bit=(buf[i]&0x20)>>5;
+ full_range_flag=buf[i]&1;
+ i++;
+ printf("<CLUT_flag_2_bit>%d</CLUT_flag_2_bit>\n",CLUT_flag_2_bit);
+ printf("<CLUT_flag_4_bit>%d</CLUT_flag_4_bit>\n",CLUT_flag_4_bit);
+ printf("<CLUT_flag_8_bit>%d</CLUT_flag_8_bit>\n",CLUT_flag_8_bit);
+ printf("<full_range_flag>%d</full_range_flag>\n",full_range_flag);
+ if (full_range_flag==1) {
+ Y_value=buf[i++];
+ Cr_value=buf[i++];
+ Cb_value=buf[i++];
+ T_value=buf[i++];
+ } else {
+ Y_value=(buf[i]&0xfc)>>2;
+ Cr_value=(buf[i]&0x2<<2)|((buf[i+1]&0xc0)>>6);
+ Cb_value=(buf[i+1]&0x2c)>>2;
+ T_value=buf[i+1]&2;
+ i+=2;
+ }
+ printf("<Y_value>%d</Y_value>\n",Y_value);
+ printf("<Cr_value>%d</Cr_value>\n",Cr_value);
+ printf("<Cb_value>%d</Cb_value>\n",Cb_value);
+ printf("<T_value>%d</T_value>\n",T_value);
+ printf("</CLUT_entry>\n");
+ }
+ printf("</CLUT_entries>\n");
+ printf("</CLUT_definition_segment>\n");
+ }
+
void process_object_data_segment() {
int segment_type,
***************
*** 167,170 ****
--- 260,265 ----
page_id=(buf[i]<<8)|buf[i+1]; i+=2;
segment_length=(buf[i]<<8)|buf[i+1]; i+=2;
+ j=i+segment_length;
+
object_id=(buf[i]<<8)|buf[i+1]; i+=2;
object_version_number=(buf[i]&0xf0)>>4;
***************
*** 173,178 ****
i++;
- j=i+segment_length-3;
-
printf("<object_data_segment page_id=\"0x%02x\" object_id=\"0x%02x\">\n",page_id,object_id);
--- 268,271 ----
***************
*** 193,196 ****
--- 286,290 ----
int fd;
int x;
+ int pid;
int stream_id,
***************
*** 204,217 ****
if (argc!=2) {
! fprintf(stderr,"USAGE: dvbsubs file.pes\n");
exit(0);
}
! fd=open(argv[1],O_RDONLY);
! if (fd <= 0) {
! fprintf(stderr,"can't open file\n");
! exit(0);
}
while (1) {
/* READ PES PACKET */
--- 298,322 ----
if (argc!=2) {
! fprintf(stderr,"USAGE: dvbsubs filename.pes\n");
! fprintf(stderr," or dvbsubs PID\n");
exit(0);
}
! pid=atoi(argv[1]);
! if (pid > 0) {
! if((fd = open("/dev/ost/demux",O_RDWR)) < 0){
! perror("DEMUX DEVICE 1: ");
! return -1;
! }
! set_filt(fd,pid,DMX_PES_OTHER);
! } else {
! fd=open(argv[1],O_RDONLY);
! if (fd <= 0) {
! fprintf(stderr,"can't open file\n");
! exit(0);
! }
}
+ printf("<?xml version=\"1.0\" ?>\n");
while (1) {
/* READ PES PACKET */
***************
*** 227,231 ****
n=read(fd,&buf[6],PES_packet_length);
- printf("PES_packet_length=%d\n",PES_packet_length);
i++; // Skip some boring PES flags
if (buf[i]!=0x80) {
--- 332,335 ----
***************
*** 245,251 ****
i+=2;
- printf("i=%d\n",i);
printf("<pes_packet data_identifier=\"0x%02x\">\n",buf[i++]);
! printf("<pts pts1=\"0x%01x\" pts1=\"0x%04x\" pts1=\"0x%04x\" />\n",PTS_1,PTS_2,PTS_3);
printf("<subtitle_stream id=\"0x%02x\">\n",buf[i++]);
while (buf[i]==0x0f) {
--- 349,354 ----
i+=2;
printf("<pes_packet data_identifier=\"0x%02x\">\n",buf[i++]);
! printf("<pts pts1=\"0x%01x\" pts2=\"0x%04x\" pts3=\"0x%04x\" />\n",PTS_1,PTS_2,PTS_3);
printf("<subtitle_stream id=\"0x%02x\">\n",buf[i++]);
while (buf[i]==0x0f) {
***************
*** 260,265 ****
case 0x11: process_region_composition_segment();
break;
! // case 0x12: process_CLUT_definition_segment();
! // break;
case 0x13: process_object_data_segment();
break;
--- 363,368 ----
case 0x11: process_region_composition_segment();
break;
! case 0x12: process_CLUT_definition_segment();
! break;
case 0x13: process_object_data_segment();
break;
***************
*** 267,275 ****
segment_length=(buf[i+2]<<8)|buf[i+3];
i+=segment_length+4;
! printf("SKIPPING segment %02x, length %d\n",segment_type,segment_length);
}
}
printf("</subtitle_stream>\n");
printf("</pes_packet>\n");
}
}
--- 370,379 ----
segment_length=(buf[i+2]<<8)|buf[i+3];
i+=segment_length+4;
! // printf("SKIPPING segment %02x, length %d\n",segment_type,segment_length);
}
}
printf("</subtitle_stream>\n");
printf("</pes_packet>\n");
+ exit(0);
}
}
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