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BBINFO.cpp
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BBINFO.cpp
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/*************************************************************************
bbINFO by Brent Beyeler, beyeler@home.com
*************************************************************************/
#include "bits.h"
#include <string.h>
#include <stdarg.h>
#define MPEG_PROGRAM_END_CODE 0x000001B9
#define PACK_START_CODE 0x000001BA
#define SYSTEM_HEADER_START_CODE 0x000001BB
#define PACKET_START_CODE_PREFIX 0x000001
#define PROGRAM_ASSOCIATION_TABLE 0x0000
#define CONDITIONAL_ACCESS_TABLE 0x0001
#define NULL_PACKET 0x1FFF
#define TRANSPORT_SYNC_BYTE 0x47
#define PROGRAM_STREAM_MAP 0xBC
#define PRIVATE_STREAM_1 0xBD
#define PADDING_STREAM 0xBE
#define PRIVATE_STREAM_2 0xBF
#define ECM_STREAM 0xF0
#define EMM_STREAM 0xF1
#define PROGRAM_STREAM_DIRECTORY 0xFF
#define DSMCC_STREAM 0xF2
#define ITUTRECH222TYPEE_STREAM 0xF8
#define VIDEO_STREAM_0 0xE0
#define VIDEO_STREAM_F 0xEF
#define AUDIO_STREAM_0 0xC0
#define AUDIO_STREAM_1F 0xDF
#define SUBSTREAM_AC3_0 0x80
#define SUBSTREAM_AC3_8 0x87
#define SUBSTREAM_DTS_0 0x88
#define SUBSTREAM_DTS_8 0x8F
#define SUBSTREAM_PCM_0 0xA0
#define SUBSTREAM_PCM_F 0xAF
#define SUBSTREAM_SUBPIC_0 0x20
#define SUBSTREAM_SUBPIC_1F 0x3F
#define PICTURE_START_CODE 0x00
#define USER_DATA_START_CODE 0xB2
#define SEQUENCE_HEADER_CODE 0xB3
#define EXTENSION_START_CODE 0xB5
#define SEQUENCE_END_CODE 0xB7
#define GROUP_START_CODE 0xB8
#define PICTURE_CODING_EXTENSION 0x04
#define FAST_FORWARD 0
#define SLOW_MOTION 1
#define FREEZE_FRAME 2
#define FAST_REVERSE 3
#define SLOW_REVERSE 4
static void transport_stream();
static int verbose_level;
static int col;
static bool vob_flag;
static char oldLevel3[80], level3[80];
double frequency [4] = {44.1, 48, 32, 0};
unsigned int slots [4] = {12, 144, 0, 0};
unsigned int bitrate_index [3][16] =
{{0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,0},
{0,32,48,56,64,80,96,112,128,160,192,224,256,320,384,0},
{0,32,40,48,56,64,80,96,112,128,160,192,224,256,320,0}};
void zprintf(int level, const char *tmpStr, ...)
{
va_list args;
if (verbose_level > 2)
{
if (level > 2)
{
if ((col + strlen(tmpStr) > 80) || (tmpStr[2] != oldLevel3[2]))
{
col = 0;
printf("\n");
}
va_start( args, tmpStr );
vprintf(tmpStr,args);
va_end( args );
col += strlen(tmpStr);
strcpy(oldLevel3, tmpStr);
}
}
else
if (level <= verbose_level)
{
va_start( args, tmpStr );
vprintf(tmpStr,args);
va_end( args );
}
}
int main(int argc, char* argv[])
{
unsigned long i, j, k, PES_packet_length, PES_header_data_length;
unsigned long PTS_DTS_flags, ESCR_flag, ES_rate_flag, DSM_trick_mode_flag;
unsigned long additional_copy_info_flag, PES_CRC_flag, PES_extension_flag;
unsigned long trick_mode_control, PES_private_data_flag, pack_header_field_flag;
unsigned long program_packet_sequence_counter_flag, PSTD_buffer_flag;
unsigned long PES_extension_flag_2, PES_extension_field_length;
unsigned long bytes_used, video_sync[16];
int audio_sync[32];
unsigned long ac3_bytes[8], dts_bytes[8], pcm_bytes[16], subpic_bytes[32];
bool firsttime = true;
unsigned long pack_packets, system_packets;
unsigned long stream_id, substream_id, SCR_value, PTS_value, DTS_value;
unsigned long stream_packets[256], stream_bytes[256];
unsigned long substream_packets[256], substream_bytes[256];
char tmpStr[256];
bool streams_found[256], mpeg2;
long double scr_value, pts_value, dts_value;
double bit_count;
long offset;
int mpeg_type; // 0 = none, 1 = program stream, 2 = transport stream
int layer, bit_rate, freq, padding_bit;
for (i = 0; i < 16; i++)
{
video_sync[i] = 0;
pcm_bytes[i] = 0;
}
for (i = 0; i < 32; i++)
{
audio_sync[i] = -1;
subpic_bytes[i] = 0;
}
for (i = 0; i < 256; i++)
{
streams_found[i] = false;
stream_packets[i] = 0;
stream_bytes[i] = 0;
substream_packets[i] = 0;
substream_bytes[i] = 0;
}
for (i = 0; i < 8; i++)
{
ac3_bytes[i] = 0;
dts_bytes[i] = 0;
}
bit_count = 0.0;
pack_packets = 0;
system_packets = 0;
col = 0;
strcpy(level3, "");
strcpy(oldLevel3, "");
verbose_level = 1;
printf("bbINFO - version 1.9, by Brent Beyeler (beyeler@home.com)\n");
printf(" speed increases by, Apachez and Christian Vogelgsang\n\n");
if (argc < 2)
{
printf("\nbbINFO is an MPEG transport and program stream analyzer\n\n");
printf("Usage: bbINFO MPEG filename <verbose level 1..4, default = 1>\n");
printf(" verbose levels 3..4 only available for program streams\n\n");
printf("Examples:\n");
printf(" To list the timing information for all packets\n");
printf(" bbINFO test.mpg 1\n\n");
printf(" To list all packets in detail (can generate huge files)\n");
printf(" bbINFO test.mpg 2\n\n");
printf(" To list all packets visually saving to file test.txt\n");
printf(" bbINFO test.vob 3 > test.txt\n\n");
printf(" To list all packets visually including PTS, DTS and P-STD info\n");
printf(" bbINFO test.vob 4\n");
exit (1);
}
init_getbits(argv[1]);
strcpy(tmpStr, argv[1]);
strlwr(tmpStr);
vob_flag = (strstr(tmpStr, ".vob") != NULL);
if (argc > 2)
{
sscanf(argv[2], "%d", &verbose_level);
if (verbose_level < 1)
verbose_level = 1;
if (verbose_level > 4)
verbose_level = 4;
}
mpeg_type = 0;
while (!mpeg_type)
{
if (look_ahead(32) == PACK_START_CODE)
{
mpeg_type = 1;
i = getbits(32);
if (look_ahead(2) == 1)
{
mpeg2 = true;
printf("File %s is an MPEG-2 Program Stream\n\n", argv[1]);
}
else
{
mpeg2 = false;
printf("File %s is an MPEG-1 Program Stream\n\n", argv[1]);
}
}
else
if (look_ahead(8) == TRANSPORT_SYNC_BYTE)
{
printf("File %s is an MPEG-2 Transport Stream\n\n", argv[1]);
if (verbose_level > 2)
{
printf("\nInvalid verbose level (%d) for transport streams.\n", verbose_level);
exit(1);
}
mpeg_type = 2;
}
else
getbits(8);
}
if (!mpeg_type)
{
printf("\nUnknown file type.\n");
exit(1);
}
if (mpeg_type == 2)
{
transport_stream();
exit(0);
}
do
{
if (!firsttime)
i = getbits(32);
else
firsttime = false;
nextpass:
switch (i)
{
case PACK_START_CODE:
pack_packets++;
if (bit_count != 0.0)
{
j = ((unsigned long)(bitcount() - bit_count)) >> 3;
zprintf(2, "\npack size = %d\n", j);
}
bit_count = bitcount();
if (verbose_level < 3)
zprintf(1, "\nPACK #%d, ", pack_packets - 1);
if (verbose_level == 1)
zprintf(1, "pack_start_code = %08X, ", i);
else
zprintf(1, "pack_start_code = %08X\n", i);
j = getbits(2);
if (mpeg2)
zprintf(2, " 01 = %d\n", j);
else
{
j = (j << 2) | getbits(2);
zprintf(2, " 0010 = %d\n", j);
}
if (verbose_level == 1)
{
SCR_value = getbits(3);
if (SCR_value & 0x00000004)
scr_value = 4294967296.0;
else
scr_value = 0.0;
SCR_value = SCR_value << 30;
get1bit();
SCR_value |= (getbits(15) << 15);
get1bit();
SCR_value |= getbits(15);
scr_value += (long double) SCR_value;
scr_value *= 300.0;
get1bit();
if (mpeg2)
scr_value += (long double) getbits(9);
printf("SCR = %Lf ms\n", scr_value / 27000.0);
scr_value /= 300.0;
}
else
{
zprintf(2, " system_clock_reference_base [32..30] = %d\n", getbits(3));
zprintf(2, " marker bit = %d\n", get1bit());
zprintf(2, " system_clock_reference_base [29..15] = %d\n", getbits(15));
zprintf(2, " marker bit = %d\n", get1bit());
zprintf(2, " system_clock_reference_base [14..0] = %d\n", getbits(15));
zprintf(2, " marker bit = %d\n", get1bit());
if (mpeg2)
zprintf(2, " system_clock_reference_extension = %d\n", getbits(9));
}
zprintf(2, " marker bit = %d\n", get1bit());
zprintf(2, " program_mux_rate = %d\n", getbits(22));
zprintf(2, " marker bit = %d\n", get1bit());
if (mpeg2)
{
zprintf(2, " marker bit = %d\n", get1bit());
zprintf(2, " reserved = %d\n", getbits(5));
i = getbits(3);
zprintf(2, " pack_stuffing_length = %d\n", i);
for (j = 0; j < i; j++)
zprintf(2, " stuffing byte = %d\n", getbits(8));
}
if (verbose_level > 2)
{
if (strlen(level3))
zprintf(3, level3, 0);
strcpy(level3, " P");
}
break;
case SYSTEM_HEADER_START_CODE:
system_packets++;
zprintf(1, "\nsystem_header_start_code = %08X\n", i);
zprintf(2, " header_length = %d\n", getbits(16));
zprintf(2, " marker bit = %d\n", get1bit());
zprintf(2, " rate_bound = %d\n", getbits(22));
zprintf(2, " marker bit = %d\n", get1bit());
zprintf(2, " audio_bound = %d\n", getbits(6));
zprintf(2, " fixed_flag = %d\n", get1bit());
zprintf(2, " CSPS_flag = %d\n", get1bit());
zprintf(2, " system_audio_lock_flag = %d\n", get1bit());
zprintf(2, " system_video_lock_flag = %d\n", get1bit());
zprintf(2, " marker bit = %d\n", get1bit());
zprintf(2, " video_bound = %d\n", getbits(5));
if (mpeg2)
{
zprintf(2, " packet_rate_restriction_flag = %d\n", get1bit());
zprintf(2, " reserved_bits = %d\n", getbits(7));
}
else
zprintf(2, " reserved_bits = %d\n", getbits(8));
while (look_ahead(1) == 1)
{
zprintf(2, " stream_id = %02X\n", getbits(8));
zprintf(2, " 11 = %d\n", getbits(2));
zprintf(2, " P-STD_buffer_bound_scale = %d\n", get1bit());
zprintf(2, " P-STD_buffer_size_bound = %d\n", getbits(13));
}
if (verbose_level > 2)
strcat(level3, "S");
break;
case MPEG_PROGRAM_END_CODE:
zprintf(1, "\n\nmpeg_program_end_code = %08X\n", i);
if (verbose_level > 2)
strcat(level3, "E");
break;
default:
if ((i >> 8) != PACKET_START_CODE_PREFIX)
{
// printf("\n\nUnknown bits in stream = %08X at byte %.0f\n", i, bitcount() / 8 - 4);
// printf("\nAttempting resynch ... ");
if (seek_sync(PACKET_START_CODE_PREFIX, 24))
{
i = 0x00000100 | getbits(8);
// printf("succesfully resynched\n\n");
goto nextpass;
}
if (end_bs())
break;
printf("\n\nUnknown bits in stream, could not resynch\n");
exit(1);
}
if (verbose_level != 1)
zprintf(1, "\npacket_start_code_prefix = %06X\n", i >> 8);
stream_id = i & 0x000000FF;
if (!streams_found[stream_id])
streams_found[stream_id] = true;
stream_packets[stream_id]++;
if (verbose_level < 3)
{
switch (stream_id)
{
case PROGRAM_STREAM_MAP:
printf(" stream_id = %02lX Program Stream Map, packet #%ld\n", stream_id, stream_packets[stream_id] - 1);
break;
case PRIVATE_STREAM_1:
if (verbose_level == 1)
printf(" stream_id = %02lX Private Stream 1, packet #%ld, ", stream_id, stream_packets[stream_id] - 1);
else
printf(" stream_id = %02lX Private Stream 1, packet #%ld\n", stream_id, stream_packets[stream_id] - 1);
break;
case PRIVATE_STREAM_2:
printf(" stream_id = %02lX Private Stream 2, packet #%ld\n", stream_id, stream_packets[stream_id] - 1);
break;
case ECM_STREAM:
printf(" stream_id = %02lX ECM Stream, packet #%ld\n", stream_id, stream_packets[stream_id] - 1);
break;
case EMM_STREAM:
printf(" stream_id = %02lX EMM Stream, packet #%ld\n", stream_id, stream_packets[stream_id] - 1);
break;
case PROGRAM_STREAM_DIRECTORY:
printf(" stream_id = %02lX Program Stream Directory, packet #%ld\n", stream_id, stream_packets[stream_id] - 1);
break;
case DSMCC_STREAM:
printf(" stream_id = %02lX DSMCC Stream, packet #%ld\n", stream_id, stream_packets[stream_id] - 1);
break;
case ITUTRECH222TYPEE_STREAM:
printf(" stream_id = %02lX ITU-T Rec. H.222.1 type E, packet #%ld\n", stream_id, stream_packets[stream_id] - 1);
break;
case PADDING_STREAM:
if (verbose_level == 1)
printf(" stream_id = %02lX Padding Stream, packet #%ld, ", stream_id, stream_packets[stream_id] - 1);
else
printf(" stream_id = %02lX Padding Stream, packet #%ld\n", stream_id, stream_packets[stream_id] - 1);
break;
default:
if ((stream_id >= 0xE0) && (stream_id <= 0xEF))
{
sprintf(tmpStr, " stream_id = %%02X Video Stream %ld, packet #%ld, ", stream_id - 0xE0, stream_packets[stream_id] - 1);
if (verbose_level != 1)
strcat(tmpStr, "\n");
zprintf(1, tmpStr, stream_id);
}
else
if ((stream_id >= 0xC0) && (stream_id <= 0xDF))
{
sprintf(tmpStr, " stream_id = %%02X MPEG Audio Stream %ld, packet #%ld, ", stream_id - 0xC0, stream_packets[stream_id] - 1);
if (verbose_level != 1)
strcat(tmpStr, "\n");
zprintf(1, tmpStr, stream_id);
}
else
if (verbose_level == 1)
printf(" stream_id = %02lX, packet #%ld, ", stream_id, stream_packets[stream_id] - 1);
else
printf(" stream_id = %02lX, packet #%ld\n", stream_id, stream_packets[stream_id] - 1);
}
}
PES_packet_length = getbits(16);
zprintf(2, " packet_length = %d\n", PES_packet_length);
switch (stream_id)
{
case PROGRAM_STREAM_MAP:
case ECM_STREAM:
case EMM_STREAM:
case PROGRAM_STREAM_DIRECTORY:
case DSMCC_STREAM:
case ITUTRECH222TYPEE_STREAM:
for (j = 0; j < PES_packet_length; j++)
getbits(8);
if (verbose_level > 2)
strcat(level3, "o");
zprintf(2, " read %d PES packet data bytes\n", j);
stream_bytes[stream_id] += j;
break;
case PRIVATE_STREAM_2:
for (j = 0; j < PES_packet_length; j++)
getbits(8);
if (verbose_level > 2)
strcat(level3, "2");
zprintf(2, " read %d PES packet data bytes\n", j);
stream_bytes[stream_id] += j;
break;
case PADDING_STREAM:
bytes_used = 0;
if (!mpeg2)
{
/* flush stuffing bytes */
while (look_ahead(1) == 1)
{
getbits(8);
bytes_used++;
}
zprintf(2, " read %d stuffing bytes\n", bytes_used);
if (look_ahead(2) == 1)
{
if (verbose_level == 2)
printf(" P-STD buffer fields\n");
zprintf(2, " 01 = %d\n", getbits(2));
zprintf(2, " P-STD_buffer_scale = %d\n", get1bit());
zprintf(2, " P-STD_buffer_size = %d\n", getbits(13));
bytes_used += 2;
if (verbose_level > 3)
strcat(level3, "P-STD");
}
if (look_ahead(4) == 2)
{
if (verbose_level == 1)
{
getbits(4);
PTS_value = getbits(3);
if (PTS_value & 0x00000004)
pts_value = 4294967296.0;
else
pts_value = 0.0;
PTS_value = PTS_value << 30;
get1bit();
PTS_value |= (getbits(15) << 15);
get1bit();
PTS_value |= getbits(15);
pts_value += (long double) PTS_value;
get1bit();
printf("PTS = %Lf ms\n", pts_value / 90.0);
}
else
{
if (verbose_level == 2)
printf(" PTS fields\n");
zprintf(2, " 0010 = %d\n", getbits(4));
zprintf(2, " PTS[32..30] = %d\n", getbits(3));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " PTS[29..15] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " PTS[14..0] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
if (verbose_level > 3)
strcat(level3, "PTS");
}
bytes_used += 5;
}
else
if (look_ahead(4) == 3)
{
if (verbose_level == 1)
{
getbits(4);
PTS_value = getbits(3);
if (PTS_value & 0x00000004)
pts_value = 4294967296.0;
else
pts_value = 0.0;
PTS_value = PTS_value << 30;
get1bit();
PTS_value |= (getbits(15) << 15);
get1bit();
PTS_value |= getbits(15);
pts_value += (long double) PTS_value;
get1bit();
printf("PTS = %Lf ms, ", pts_value / 90.0);
getbits(4);
DTS_value = getbits(3);
if (DTS_value & 0x00000004)
dts_value = 4294967296.0;
else
dts_value = 0.0;
DTS_value = DTS_value << 30;
get1bit();
DTS_value |= (getbits(15) << 15);
get1bit();
DTS_value |= getbits(15);
dts_value += (long double) DTS_value;
get1bit();
printf("DTS = %Lf ms\n", dts_value / 90.0);
}
else
{
if (verbose_level == 2)
printf(" PTS fields\n");
zprintf(2, " 0011 = %d\n", getbits(4));
zprintf(2, " PTS[32..30] = %d\n", getbits(3));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " PTS[29..15] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " PTS[14..0] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
if (verbose_level == 2)
printf(" DTS fields\n");
zprintf(2, " 0001 = %d\n", getbits(4));
zprintf(2, " DTS[32..30] = %d\n", getbits(3));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " DTS[29..15] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " DTS[14..0] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
if (verbose_level > 3)
strcat(level3, "PTSDTS");
}
bytes_used += 10;
}
else
{
if (verbose_level == 1)
printf("\n");
j = getbits(8);
if (j != 0x0f)
{
printf(" Invalid bits in MPEG-1 file\n");
exit (1);
}
zprintf(2, " no_timestamps marker = %d\n", j);
bytes_used++;
}
}
else
if (verbose_level == 1)
printf("\n");
for (j = 0; j < PES_packet_length - bytes_used; j++)
getbits(8);
if (verbose_level > 2)
strcat(level3, "p");
zprintf(2, " read %d padding_bytes\n", j);
stream_bytes[stream_id] += j;
break;
default:
bytes_used = 0;
if (mpeg2)
{
zprintf(2, " 10 = %d\n", getbits(2));
zprintf(2, " PES_scrambling_control = %d\n", getbits(2));
zprintf(2, " PES_priority = %d\n", get1bit());
zprintf(2, " data_alignment_indicator = %d\n", get1bit());
zprintf(2, " copyright = %d\n", get1bit());
zprintf(2, " original_or_copy = %d\n", get1bit());
PTS_DTS_flags = getbits(2);
zprintf(2, " PTS_DTS_flags = %d\n", PTS_DTS_flags);
ESCR_flag = get1bit();
zprintf(2, " ESCR_flag = %d\n", ESCR_flag);
ES_rate_flag = get1bit();
zprintf(2, " ES_rate_flag = %d\n", ES_rate_flag);
DSM_trick_mode_flag = get1bit();
zprintf(2, " DSM_trick_mode_flag = %d\n", DSM_trick_mode_flag);
additional_copy_info_flag = get1bit();
zprintf(2, " additional_copy_info_flag = %d\n", additional_copy_info_flag);
PES_CRC_flag = get1bit();
zprintf(2, " PES_CRC_flag = %d\n", PES_CRC_flag);
PES_extension_flag = get1bit();
zprintf(2, " PES_extension_flag = %d\n", PES_extension_flag);
PES_header_data_length = getbits(8);
zprintf(2, " PES_header_data_length = %d\n", PES_header_data_length);
if ((verbose_level == 1) && (PTS_DTS_flags != 2) && (PTS_DTS_flags != 3))
printf("\n");
if (PTS_DTS_flags == 2)
{
if (verbose_level == 1)
{
getbits(4);
PTS_value = getbits(3);
if (PTS_value & 0x00000004)
pts_value = 4294967296.0;
else
pts_value = 0.0;
PTS_value = PTS_value << 30;
get1bit();
PTS_value |= (getbits(15) << 15);
get1bit();
PTS_value |= getbits(15);
pts_value += (long double) PTS_value;
get1bit();
if (pts_value <= scr_value)
printf("PTS = %Lf ms, underflow\n", pts_value / 90.0);
else
printf("PTS = %Lf ms\n", pts_value / 90.0);
}
else
{
if (verbose_level == 2)
printf(" PTS fields\n");
zprintf(2, " 0010 = %d\n", getbits(4));
zprintf(2, " PTS[32..30] = %d\n", getbits(3));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " PTS[29..15] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " PTS[14..0] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
if (verbose_level > 3)
strcat(level3, "PTS");
}
bytes_used += 5;
}
if (PTS_DTS_flags == 3)
{
if (verbose_level == 1)
{
getbits(4);
PTS_value = getbits(3);
if (PTS_value & 0x00000004)
pts_value = 4294967296.0;
else
pts_value = 0.0;
PTS_value = PTS_value << 30;
get1bit();
PTS_value |= (getbits(15) << 15);
get1bit();
PTS_value |= getbits(15);
pts_value += (long double) PTS_value;
get1bit();
if (pts_value <= scr_value)
printf("PTS = %Lf ms underflow, ", pts_value / 90.0);
else
printf("PTS = %Lf ms, ", pts_value / 90.0);
getbits(4);
DTS_value = getbits(3);
if (DTS_value & 0x00000004)
dts_value = 4294967296.0;
else
dts_value = 0.0;
DTS_value = DTS_value << 30;
get1bit();
DTS_value |= (getbits(15) << 15);
get1bit();
DTS_value |= getbits(15);
dts_value += (long double) DTS_value;
get1bit();
if (dts_value <= scr_value)
printf("DTS = %Lf ms underflow\n", dts_value / 90.0);
else
printf("DTS = %Lf ms\n", dts_value / 90.0);
}
else
{
if (verbose_level == 2)
printf(" PTS fields\n");
zprintf(2, " 0011 = %d\n", getbits(4));
zprintf(2, " PTS[32..30] = %d\n", getbits(3));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " PTS[29..15] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " PTS[14..0] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
if (verbose_level == 2)
printf(" DTS fields\n");
zprintf(2, " 0001 = %d\n", getbits(4));
zprintf(2, " DTS[32..30] = %d\n", getbits(3));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " DTS[29..15] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " DTS[14..0] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
if (verbose_level > 3)
strcat(level3, "PTSDTS");
}
bytes_used += 10;
}
if (ESCR_flag == 1)
{
if (verbose_level == 2)
printf(" ESCR fields\n");
zprintf(2, " reserved = %d\n", getbits(2));
zprintf(2, " ESCR_base[32..30] = %d\n", getbits(3));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " ESCR_base[29..15] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " ESCR_base[14..0] = %d\n", getbits(15));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " ESCR_extension = %d\n", getbits(9));
zprintf(2, " marker_bit = %d\n", get1bit());
bytes_used += 6;
}
if (ES_rate_flag == 1)
{
if (verbose_level == 2)
printf(" ES rate fields\n");
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " ES_rate = %d\n", getbits(22));
zprintf(2, " marker_bit = %d\n", get1bit());
bytes_used += 3;
}
if (DSM_trick_mode_flag == 1)
{
trick_mode_control = getbits(3);
if (verbose_level == 2)
printf(" DSM trick mode fields\n");
zprintf(2, " trick_mode_control = %d\n", trick_mode_control);
switch (trick_mode_control)
{
case FAST_FORWARD:
if (verbose_level == 2)
printf(" fast forward fields\n");
zprintf(2, " field_id = %d\n", getbits(2));
zprintf(2, " intra_slice_refresh = %d\n", get1bit());
zprintf(2, " frequency_truncation = %d\n", getbits(2));
break;
case SLOW_MOTION:
if (verbose_level == 2)
printf(" slow motion fields\n");
zprintf(2, " rep_cntrl = %d\n", getbits(5));
break;
case FREEZE_FRAME:
if (verbose_level == 2)
printf(" freeze frame fields\n");
zprintf(2, " field_id = %d\n", getbits(2));
zprintf(2, " reserved = %d\n", getbits(3));
break;
case FAST_REVERSE:
if (verbose_level == 2)
printf(" fast reverse fields\n");
zprintf(2, " field_id = %d\n", getbits(2));
zprintf(2, " intra_slice_refresh = %d\n", get1bit());
zprintf(2, " frequency_truncation = %d\n", getbits(2));
break;
case SLOW_REVERSE:
if (verbose_level == 2)
printf(" slow reverse fields\n");
zprintf(2, " rep_cntrl = %d\n", getbits(5));
break;
default:
if (verbose_level == 2)
printf(" reserve fields\n");
zprintf(2, " reserved = %d\n", getbits(5));
break;
}
bytes_used++;
}
if (additional_copy_info_flag == 1)
{
if (verbose_level == 2)
printf(" additional copy info fields\n");
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " additional_copy_info = %d\n", getbits(7));
bytes_used++;
}
if (PES_CRC_flag == 1)
{
if (verbose_level == 2)
printf(" PES CRC field\n");
zprintf(2, " previous_PES_packet_CRC = %d\n", getbits(16));
bytes_used += 2;
}
if (PES_extension_flag == 1)
{
if (verbose_level == 2)
printf(" PES extension fields\n");
PES_private_data_flag = get1bit();
zprintf(2, " PES_private_data_flag = %d\n", PES_private_data_flag);
pack_header_field_flag = get1bit();
zprintf(2, " pack_header_field_flag = %d\n", pack_header_field_flag);
program_packet_sequence_counter_flag = get1bit();
zprintf(2, " program_packet_sequence_counter_flag = %d\n", program_packet_sequence_counter_flag);
PSTD_buffer_flag = get1bit();
zprintf(2, " P-STD_buffer_flag = %d\n", PSTD_buffer_flag);
zprintf(2, " reserved = %d\n", getbits(3));
PES_extension_flag_2 = get1bit();
zprintf(2, " PES_extension_flag_2 = %d\n", PES_extension_flag_2);
bytes_used++;
if (PES_private_data_flag == 1)
{
if (verbose_level == 2)
printf(" PES private data fields\n");
for (j = 0; j < 128; j++)
getbits(8);
zprintf(2, " read %d bytes of private data\n", j);
bytes_used += 16;
}
if (pack_header_field_flag == 1)
{
printf(" pack header field flag value not allowed in program streams\n");
exit(1);
}
if (program_packet_sequence_counter_flag == 1)
{
if (verbose_level == 2)
printf(" program packet sequence counter fields\n");
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " program_packet_sequence_counter = %d\n", getbits(7));
zprintf(2, " marker_bit = %d\n", get1bit());
zprintf(2, " MPEG1_MPEG2_identifier = %d\n", get1bit());
zprintf(2, " original_stuff_length = %d\n", getbits(6));
bytes_used += 2;
}
if (PSTD_buffer_flag == 1)
{
if (verbose_level == 2)
printf(" P-STD buffer fields\n");
zprintf(2, " 01 = %d\n", getbits(2));
zprintf(2, " P-STD_buffer_scale = %d\n", get1bit());
zprintf(2, " P-STD_buffer_size = %d\n", getbits(13));
bytes_used += 2;
if (verbose_level > 3)
strcat(level3, "P-STD");
}
if (PES_extension_flag_2 == 1)
{
if (verbose_level == 2)
printf(" PES extension 2 fields\n");
zprintf(2, " marker_bit = %d\n", get1bit());
PES_extension_field_length = getbits(7);
zprintf(2, " PES_extension_field_length = %d\n", PES_extension_field_length);
bytes_used++;
for (j = 0; j < PES_extension_field_length; j++)
{
getbits(8);
bytes_used++;
}
zprintf(2, " read %d bytes of PES extension field data\n", j);
}
}
for (j = 0; j < PES_header_data_length - bytes_used; j++)
getbits(8);
if (j)
zprintf(2, " read %d stuffing bytes\n", j);
if (verbose_level == 1)
{
if ((stream_id >= VIDEO_STREAM_0) && (stream_id <= VIDEO_STREAM_F))
{
i = stream_id - VIDEO_STREAM_0;
j = 0;
while (j < PES_packet_length - PES_header_data_length - 3)
{
k = getbits(8);
switch (video_sync[i])
{
case 0:
if (k == 0x00)
video_sync[i] = 1;
break;
case 1:
if (k == 0x00)
video_sync[i] = 2;
else
video_sync[i] = 0;
break;
case 2:
if (k != 0x01)
{
if (k != 0x00)
video_sync[i] = 0;
}
else
{
offset = j - 2;
switch (look_ahead(8))
{
case USER_DATA_START_CODE:
printf(" %ld - user_data_start_code\n", offset);
break;
case SEQUENCE_HEADER_CODE:
printf(" %ld - sequence_header_code\n", offset);
break;
case EXTENSION_START_CODE:
printf(" %ld - extension_start_code\n", offset);
break;
case SEQUENCE_END_CODE:
printf(" %ld - sequence_end_code\n", offset);
break;
case GROUP_START_CODE:
printf(" %ld - group_of_pictures header\n", offset);
break;
case PICTURE_START_CODE:
printf(" %ld - picture_start_code\n", offset);
break;
}
video_sync[i] = 0;
}
}
j++;
}
}
else
if ((stream_id >= AUDIO_STREAM_0) && (stream_id <= AUDIO_STREAM_1F))
{
i = stream_id - AUDIO_STREAM_0;
for (j = 0; j < PES_packet_length - PES_header_data_length - 3; j++)
{
k = getbits(8);
switch (audio_sync[i])
{
case -1:
if (k == 0xFF)
audio_sync[i] = -2;
break;
case -2:
if ((k & 0xF0) == 0xF0)
{
offset = j - 1;
printf(" %ld - audio syncword\n", offset);
layer = (k & 0x06) >> 1;
audio_sync[i] = -3;
}
else
audio_sync[i] = -1;
break;
case -3:
bit_rate = (k & 0xF0) >> 4;
freq = (k & 0x0C) >> 2;
padding_bit = (k & 0x02) >> 1;
audio_sync[i] = ((bitrate_index[3 - layer][bit_rate] /
frequency[freq]) * slots[3 - layer]) - 4;
if (padding_bit)
audio_sync[i] += 1;