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-rw-r--r--ext/mplex/systems.cc762
1 files changed, 0 insertions, 762 deletions
diff --git a/ext/mplex/systems.cc b/ext/mplex/systems.cc
deleted file mode 100644
index fd5b9082..00000000
--- a/ext/mplex/systems.cc
+++ /dev/null
@@ -1,762 +0,0 @@
-#include <config.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/param.h>
-#include <sys/stat.h>
-#include "systems.hh"
-#include "mplexconsts.hh"
-#include <cassert>
-
-uint8_t dummy_buf[8000];
-void
-PS_Stream::Init (unsigned _mpeg, unsigned int _sector_size, off_t max_seg_size)
-{
- max_segment_size = max_seg_size;
- mpeg_version = _mpeg;
- sector_size = _sector_size;
- segment_num = 1;
- written = 0;
-
- sector_buf = new uint8_t[_sector_size];
-}
-
-bool PS_Stream::FileLimReached ()
-{
- return max_segment_size != 0 && written > max_segment_size;
-}
-
-void
-PS_Stream::NextFile ()
-{
-/*
- char prev_filename[strlen (cur_filename) + 1];
-
- //fclose (strm);
- ++segment_num;
- strcpy (prev_filename, cur_filename);
- snprintf (cur_filename, MAXPATHLEN, filename_pat, segment_num);
- if (strcmp (prev_filename, cur_filename) == 0) {
- mjpeg_error_exit1
- ("Need to split output but there appears to be no %%d in the filename pattern %s",
- filename_pat);
- }
- strm = fopen (cur_filename, "wb");
- if (strm == NULL) {
- mjpeg_error_exit1 ("Could not open for writing: %s", cur_filename);
- }
- */
-}
-
-/**************************************************************
-
- Packet payload compute how much payload a sector-sized packet with the
- specified headers can carry...
- TODO: Should really be called "Sector Payload"
-**************************************************************/
-
-
-unsigned int
-PS_Stream::PacketPayload (MuxStream & strm,
- Sys_header_struc * sys_header,
- Pack_struc * pack_header, int buffers, int PTSstamp, int DTSstamp)
-{
- int payload = sector_size - (PACKET_HEADER_SIZE + strm.zero_stuffing);
-
- if (sys_header != NULL)
- payload -= sys_header->length;
- if (mpeg_version == 2) {
- if (buffers)
- payload -= MPEG2_BUFFERINFO_LENGTH;
-
- payload -= MPEG2_AFTER_PACKET_LENGTH_MIN;
- if (pack_header != NULL)
- payload -= pack_header->length;
- if (DTSstamp)
- payload -= DTS_PTS_TIMESTAMP_LENGTH;
- if (PTSstamp)
- payload -= DTS_PTS_TIMESTAMP_LENGTH;
-
- } else {
- if (buffers)
- payload -= MPEG1_BUFFERINFO_LENGTH;
-
- payload -= MPEG1_AFTER_PACKET_LENGTH_MIN;
- if (pack_header != NULL)
- payload -= pack_header->length;
- if (DTSstamp)
- payload -= DTS_PTS_TIMESTAMP_LENGTH;
- if (PTSstamp)
- payload -= DTS_PTS_TIMESTAMP_LENGTH;
- if (DTSstamp || PTSstamp)
- payload += 1; /* No need for nostamp marker ... */
-
- }
-
- return payload;
-}
-
-
-
-/*************************************************************************
- Kopiert einen TimeCode in einen Bytebuffer. Dabei wird er nach
- MPEG-Verfahren in bits aufgesplittet.
-
- Makes a Copy of a TimeCode in a Buffer, splitting it into bitfields
- for MPEG-1/2 DTS/PTS fields and MPEG-1 pack scr fields
-*************************************************************************/
-
-void
-PS_Stream::BufferDtsPtsMpeg1ScrTimecode (clockticks timecode, uint8_t marker, uint8_t ** buffer)
-{
- clockticks thetime_base;
- uint8_t temp;
- unsigned int msb, lsb;
-
- /* MPEG-1 uses a 90KHz clock, extended to 300*90KHz = 27Mhz in MPEG-2 */
- /* For these fields we only encode to MPEG-1 90Khz resolution... */
-
- thetime_base = timecode / 300;
- msb = (thetime_base >> 32) & 1;
- lsb = (thetime_base & 0xFFFFFFFFLL);
-
- temp = (marker << 4) | (msb << 3) | ((lsb >> 29) & 0x6) | 1;
- *((*buffer)++) = temp;
- temp = (lsb & 0x3fc00000) >> 22;
- *((*buffer)++) = temp;
- temp = ((lsb & 0x003f8000) >> 14) | 1;
- *((*buffer)++) = temp;
- temp = (lsb & 0x7f80) >> 7;
- *((*buffer)++) = temp;
- temp = ((lsb & 0x007f) << 1) | 1;
- *((*buffer)++) = temp;
-
-}
-
-/*************************************************************************
- Makes a Copy of a TimeCode in a Buffer, splitting it into bitfields
- for MPEG-2 pack scr fields which use the full 27Mhz resolution
-
- Did they *really* need to put a 27Mhz
- clock source into the system stream. Does anyone really need it
- for their decoders? Get real... I guess they thought it might allow
- someone somewhere to save on a proper clock circuit.
-*************************************************************************/
-
-
-void
-PS_Stream::BufferMpeg2ScrTimecode (clockticks timecode, uint8_t ** buffer)
-{
- clockticks thetime_base;
- unsigned int thetime_ext;
- uint8_t temp;
- unsigned int msb, lsb;
-
- thetime_base = timecode / 300;
- thetime_ext = timecode % 300;
- msb = (thetime_base >> 32) & 1;
- lsb = thetime_base & 0xFFFFFFFFLL;
-
-
- temp = (MARKER_MPEG2_SCR << 6) | (msb << 5) | ((lsb >> 27) & 0x18) | 0x4 | ((lsb >> 28) & 0x3);
- *((*buffer)++) = temp;
- temp = (lsb & 0x0ff00000) >> 20;
- *((*buffer)++) = temp;
- temp = ((lsb & 0x000f8000) >> 12) | 0x4 | ((lsb & 0x00006000) >> 13);
- *((*buffer)++) = temp;
- temp = (lsb & 0x00001fe0) >> 5;
- *((*buffer)++) = temp;
- temp = ((lsb & 0x0000001f) << 3) | 0x4 | ((thetime_ext & 0x00000180) >> 7);
- *((*buffer)++) = temp;
- temp = ((thetime_ext & 0x0000007F) << 1) | 1;
- *((*buffer)++) = temp;
-}
-
-/*************************************************************************
-
-BufferPaddingPacket - Insert a padding packet of the desired length
- into the specified Program/System stream buffer
-
-**************************************************************************/
-
-void
-PS_Stream::BufferPaddingPacket (int padding, uint8_t * &buffer)
-{
- uint8_t *index = buffer;
- int i;
-
- assert ((mpeg_version == 2 && padding >= 6) || (mpeg_version == 1 && padding >= 7));
-
- *(index++) = static_cast < uint8_t > (PACKET_START) >> 16;
- *(index++) = static_cast < uint8_t > (PACKET_START & 0x00ffff) >> 8;
- *(index++) = static_cast < uint8_t > (PACKET_START & 0x0000ff);
- *(index++) = PADDING_STR;
- *(index++) = static_cast < uint8_t > ((padding - 6) >> 8);
- *(index++) = static_cast < uint8_t > ((padding - 6) & 0xff);
- if (mpeg_version == 2) {
- for (i = 0; i < padding - 6; i++)
- *(index++) = static_cast < uint8_t > (STUFFING_BYTE);
- } else {
- *(index++) = 0x0F;
- for (i = 0; i < padding - 7; i++)
- *(index++) = static_cast < uint8_t > (STUFFING_BYTE);
- }
-
- buffer = index;
-}
-
-
-void
-PS_Stream::BufferSectorHeader (uint8_t * index,
- Pack_struc * pack,
- Sys_header_struc * sys_header, uint8_t * &header_end)
-{
- /* Pack header if present */
-
- if (pack != NULL) {
- memcpy (index, pack->buf, pack->length);
- index += pack->length;
- }
-
- /* System header if present */
-
- if (sys_header != NULL) {
- memcpy (index, sys_header->buf, sys_header->length);
- index += sys_header->length;
- }
- header_end = index;
-}
-
-/******************************************
- *
- * BufferPacketHeader
- * Construct and MPEG-1/2 header for a packet in the specified
- * buffer (which *MUST* be long enough) and set points to the start of
- * the payload and packet length fields.
- *
- ******************************************/
-
-
-void
-PS_Stream::BufferPacketHeader (uint8_t * buf,
- uint8_t type,
- unsigned int mpeg_version,
- bool buffers,
- unsigned int buffer_size,
- uint8_t buffer_scale,
- clockticks PTS,
- clockticks DTS,
- uint8_t timestamps, uint8_t * &size_field, uint8_t * &header_end)
-{
-
- uint8_t *index = buf;
- uint8_t *pes_header_len_field = 0;
-
-
- /* konstante Packet Headerwerte eintragen */
- /* write constant packet header data */
-
- *(index++) = static_cast < uint8_t > (PACKET_START) >> 16;
- *(index++) = static_cast < uint8_t > (PACKET_START & 0x00ffff) >> 8;
- *(index++) = static_cast < uint8_t > (PACKET_START & 0x0000ff);
- *(index++) = type;
-
-
- /* we remember this offset so we can fill in the packet size field once
- we know the actual size... */
- size_field = index;
- index += 2;
-
- if (mpeg_version == 1) {
- /* MPEG-1: buffer information */
- if (buffers) {
- *(index++) = static_cast < uint8_t > (0x40 | (buffer_scale << 5) | (buffer_size >> 8));
- *(index++) = static_cast < uint8_t > (buffer_size & 0xff);
- }
-
- /* MPEG-1: PTS, PTS & DTS, oder gar nichts? */
- /* should we write PTS, PTS & DTS or nothing at all ? */
-
- switch (timestamps) {
- case TIMESTAMPBITS_NO:
- *(index++) = MARKER_NO_TIMESTAMPS;
- break;
- case TIMESTAMPBITS_PTS:
- BufferDtsPtsMpeg1ScrTimecode (PTS, MARKER_JUST_PTS, &index);
- break;
- case TIMESTAMPBITS_PTS_DTS:
- BufferDtsPtsMpeg1ScrTimecode (PTS, MARKER_PTS, &index);
- BufferDtsPtsMpeg1ScrTimecode (DTS, MARKER_DTS, &index);
- break;
- }
- } else if (type != PADDING_STR) {
- /* MPEG-2 packet syntax header flags. */
- /* These *DO NOT* appear in padding packets */
- /* TODO: They don't appear in several others either! */
- /* First byte:
- <1,0><PES_scrambling_control:2=0><PES_priority><data_alignment_ind.=0>
- <copyright=0><original=1> */
- *(index++) = 0x81;
- /* Second byte: PTS PTS_DTS or neither? Buffer info?
- <PTS_DTS:2><ESCR=0><ES_rate=0>
- <DSM_trick_mode:2=0><PES_CRC=0><PES_extension=(!!buffers)>
- */
- *(index++) = (timestamps << 6) | (!!buffers);
- /* Third byte:
- <PES_header_length:8> */
- pes_header_len_field = index; /* To fill in later! */
- index++;
- /* MPEG-2: the timecodes if required */
- switch (timestamps) {
- case TIMESTAMPBITS_PTS:
- BufferDtsPtsMpeg1ScrTimecode (PTS, MARKER_JUST_PTS, &index);
- break;
-
- case TIMESTAMPBITS_PTS_DTS:
- BufferDtsPtsMpeg1ScrTimecode (PTS, MARKER_PTS, &index);
- BufferDtsPtsMpeg1ScrTimecode (DTS, MARKER_DTS, &index);
- break;
- }
-
- /* MPEG-2 The buffer information in a PES_extension */
- if (buffers) {
- /* MPEG-2 PES extension header
- <PES_private_data:1=0><pack_header_field=0>
- <program_packet_sequence_counter=0>
- <P-STD_buffer=1><reserved:3=1><{PES_extension_flag_2=0> */
- *(index++) = static_cast < uint8_t > (0x1e);
- *(index++) = static_cast < uint8_t > (0x40 | (buffer_scale << 5) | (buffer_size >> 8));
- *(index++) = static_cast < uint8_t > (buffer_size & 0xff);
- }
- }
-
- if (mpeg_version == 2 && type != PADDING_STR) {
- *pes_header_len_field = static_cast < uint8_t > (index - (pes_header_len_field + 1));
- }
-
- header_end = index;
-}
-
-/*************************************************************************
- * CreateSector
- *
- * Creates a complete sector to carry a padding packet or a packet
- * from one of the elementary streams. Pack and System headers are
- * prepended if required.
- *
- * We allow for situations where want to
- * deliberately reduce the payload carried by stuffing.
- * This allows us to deal with tricky situations where the
- * header overhead of adding in additional information
- * would exceed the remaining payload capacity.
- *
- * Header stuffing and/or a padding packet is appended if the sector is
- * unfilled. Zero stuffing after the end of a packet is also supported
- * to allow thos wretched audio packets from VCD's to be handled.
- *
- * TODO: Should really be called "WriteSector"
- * TODO: We need to add a mechanism for sub-headers of private streams
- * to be generated...
- *
- *************************************************************************/
-
-
-unsigned int
-PS_Stream::CreateSector (Pack_struc * pack,
- Sys_header_struc * sys_header,
- unsigned int max_packet_data_size,
- MuxStream & strm,
- bool buffers,
- bool end_marker, clockticks PTS, clockticks DTS, uint8_t timestamps)
-{
- unsigned int i;
- unsigned int j;
- uint8_t *index;
- uint8_t *size_offset;
- uint8_t *fixed_packet_header_end;
- uint8_t *pes_header_len_offset = 0;
- unsigned int target_packet_data_size;
- unsigned int actual_packet_data_size;
- int packet_data_to_read;
- unsigned int bytes_short;
- uint8_t type = strm.stream_id;
- uint8_t buffer_scale = strm.BufferScale ();
- unsigned int buffer_size = strm.BufferSizeCode ();
- unsigned int sector_pack_area;
-
- index = sector_buf;
-
- sector_pack_area = sector_size - strm.zero_stuffing;
- if (end_marker)
- sector_pack_area -= 4;
-
- BufferSectorHeader (index, pack, sys_header, index);
-
- /* konstante Packet Headerwerte eintragen */
- /* write constant packet header data */
-
- *(index++) = static_cast < uint8_t > (PACKET_START) >> 16;
- *(index++) = static_cast < uint8_t > (PACKET_START & 0x00ffff) >> 8;
- *(index++) = static_cast < uint8_t > (PACKET_START & 0x0000ff);
- *(index++) = type;
-
-
- /* we remember this offset so we can fill in the packet size field once
- we know the actual size... */
- size_offset = index;
- index += 2;
- fixed_packet_header_end = index;
-
- if (mpeg_version == 1) {
- /* MPEG-1: buffer information */
- if (buffers) {
- *(index++) = static_cast < uint8_t > (0x40 | (buffer_scale << 5) | (buffer_size >> 8));
- *(index++) = static_cast < uint8_t > (buffer_size & 0xff);
- }
-
- /* MPEG-1: PTS, PTS & DTS, oder gar nichts? */
- /* should we write PTS, PTS & DTS or nothing at all ? */
-
- switch (timestamps) {
- case TIMESTAMPBITS_NO:
- *(index++) = MARKER_NO_TIMESTAMPS;
- break;
- case TIMESTAMPBITS_PTS:
- BufferDtsPtsMpeg1ScrTimecode (PTS, MARKER_JUST_PTS, &index);
- break;
- case TIMESTAMPBITS_PTS_DTS:
- BufferDtsPtsMpeg1ScrTimecode (PTS, MARKER_PTS, &index);
- BufferDtsPtsMpeg1ScrTimecode (DTS, MARKER_DTS, &index);
- break;
- }
- } else if (type != PADDING_STR) {
- /* MPEG-2 packet syntax header flags. */
- /* These *DO NOT* appear in padding packets */
- /* TODO: They don't appear in several others either! */
- /* First byte:
- <1,0><PES_scrambling_control:2=0><PES_priority><data_alignment_ind.=0>
- <copyright=0><original=1> */
- *(index++) = 0x81;
- /* Second byte: PTS PTS_DTS or neither? Buffer info?
- <PTS_DTS:2><ESCR=0><ES_rate=0>
- <DSM_trick_mode:2=0><PES_CRC=0><PES_extension=(!!buffers)>
- */
- *(index++) = (timestamps << 6) | (!!buffers);
- /* Third byte:
- <PES_header_length:8> */
- pes_header_len_offset = index; /* To fill in later! */
- index++;
- /* MPEG-2: the timecodes if required */
- switch (timestamps) {
- case TIMESTAMPBITS_PTS:
- BufferDtsPtsMpeg1ScrTimecode (PTS, MARKER_JUST_PTS, &index);
- break;
-
- case TIMESTAMPBITS_PTS_DTS:
- BufferDtsPtsMpeg1ScrTimecode (PTS, MARKER_PTS, &index);
- BufferDtsPtsMpeg1ScrTimecode (DTS, MARKER_DTS, &index);
- break;
- }
-
- /* MPEG-2 The buffer information in a PES_extension */
- if (buffers) {
- /* MPEG-2 PES extension header
- <PES_private_data:1=0><pack_header_field=0>
- <program_packet_sequence_counter=0>
- <P-STD_buffer=1><reserved:3=1><{PES_extension_flag_2=0> */
- *(index++) = static_cast < uint8_t > (0x1e);
- *(index++) = static_cast < uint8_t > (0x40 | (buffer_scale << 5) | (buffer_size >> 8));
- *(index++) = static_cast < uint8_t > (buffer_size & 0xff);
- }
- }
-#ifdef MUX_DEBUG
- // DVD MPEG2: AC3 in PRIVATE_STR_1
- if (type == PRIVATE_STR_1) {
- ac3_header = index;
- // TODO: should allow multiple AC3 streams...
- //ac3_header[0] = AC3_SUB_STR_1; // byte: Audio stream number
- // byte: num of AC3 syncwords
- // byte: Offset first AC3 syncword (hi)
- // byte: Offset 2nd AC2 syncword (lo)
- //index += 4;
- //subheader_size = 4;
- subheader_size = 0;
- } else
-#endif
-
-
- /* MPEG-1, MPEG-2: data available to be filled is packet_size less
- * header and MPEG-1 trailer... */
-
- target_packet_data_size = sector_pack_area - (index - sector_buf);
-
-
- /* DEBUG: A handy consistency check when we're messing around */
-#ifdef MUX_DEBUG
- if (type != PADDING_STR && (end_marker ? target_packet_data_size + 4 : target_packet_data_size)
- !=
- PacketPayload (strm, sys_header, pack, buffers,
- timestamps & TIMESTAMPBITS_PTS, timestamps & TIMESTAMPBITS_DTS))
- {
- printf ("\nPacket size calculation error %d S%d P%d B%d %d %d!\n ",
- timestamps,
- sys_header != 0, pack != 0, buffers,
- target_packet_data_size,
- PacketPayload (strm, sys_header, pack, buffers,
- timestamps & TIMESTAMPBITS_PTS, timestamps & TIMESTAMPBITS_DTS));
- exit (1);
- }
-#endif
-
- /* If a maximum payload data size is specified (!=0) and is
- smaller than the space available thats all we read (the
- remaining space is stuffed) */
- if (max_packet_data_size != 0 && max_packet_data_size < target_packet_data_size) {
- packet_data_to_read = max_packet_data_size;
- } else
- packet_data_to_read = target_packet_data_size;
-
-
- /* MPEG-1, MPEG-2: read in available packet data ... */
-
- actual_packet_data_size = strm.ReadPacketPayload (index, packet_data_to_read);
-
- // DVD MPEG2: AC3 in PRIVATE_STR_1: fill in syncword count and offset
-#ifdef MUX_DEBUG
- if (type == PRIVATE_STR_1) {
- unsigned int syncwords_found;
-
- for (i = 0; i < actual_packet_data_size; ++i) {
- if (index[i + 4] == 0x0b && i + 5 < actual_packet_data_size && index[i + 5] == 0x77) {
- if (syncwords_found == 0) {
- if (ac3_header[2] != static_cast < uint8_t > ((i + 1) >> 8) ||
- ac3_header[3] != static_cast < uint8_t > ((i + 1) & 0xff))
- printf ("BROKEN HEADER %2x %2x (%2x %2x)\n",
- ac3_header[2],
- ac3_header[3],
- static_cast < uint8_t > ((i + 1) >> 8),
- static_cast < uint8_t > ((i + 1) & 0xff));
- }
- ++syncwords_found;
- }
- }
- }
-#endif
- bytes_short = target_packet_data_size - actual_packet_data_size;
-
- /* Handle the situations where we don't have enough data to fill
- the packet size fully ...
- Small shortfalls are dealt with by stuffing, big ones by inserting
- padding packets.
- */
-
-
- if (bytes_short < MINIMUM_PADDING_PACKET_SIZE && bytes_short > 0) {
- if (mpeg_version == 1) {
- /* MPEG-1 stuffing happens *before* header data fields. */
- memmove (fixed_packet_header_end + bytes_short,
- fixed_packet_header_end, actual_packet_data_size + (index - fixed_packet_header_end)
- );
- for (j = 0; j < bytes_short; ++j)
- fixed_packet_header_end[j] = static_cast < uint8_t > (STUFFING_BYTE);
- } else {
- memmove (index + bytes_short, index, actual_packet_data_size);
- for (j = 0; j < bytes_short; ++j)
- *(index + j) = static_cast < uint8_t > (STUFFING_BYTE);
- }
- index += bytes_short;
- bytes_short = 0;
- }
-
-
- /* MPEG-2: we now know the header length... but we mustn't forget
- to take into account any non-MPEG headers we've included.
- Currently this only happens for AC3 audio, but who knows...
- */
- if (mpeg_version == 2 && type != PADDING_STR) {
- unsigned int pes_header_len = index - (pes_header_len_offset + 1);
-
- *pes_header_len_offset = static_cast < uint8_t > (pes_header_len);
- }
- index += actual_packet_data_size;
- /* MPEG-1, MPEG-2: Now we know that actual packet size */
- size_offset[0] = static_cast < uint8_t > ((index - size_offset - 2) >> 8);
- size_offset[1] = static_cast < uint8_t > ((index - size_offset - 2) & 0xff);
-
- /* The case where we have fallen short enough to allow it to be
- dealt with by inserting a stuffing packet... */
- if (bytes_short != 0) {
- *(index++) = static_cast < uint8_t > (PACKET_START) >> 16;
- *(index++) = static_cast < uint8_t > (PACKET_START & 0x00ffff) >> 8;
- *(index++) = static_cast < uint8_t > (PACKET_START & 0x0000ff);
- *(index++) = PADDING_STR;
- *(index++) = static_cast < uint8_t > ((bytes_short - 6) >> 8);
- *(index++) = static_cast < uint8_t > ((bytes_short - 6) & 0xff);
- if (mpeg_version == 2) {
- for (i = 0; i < bytes_short - 6; i++)
- *(index++) = static_cast < uint8_t > (STUFFING_BYTE);
- } else {
- *(index++) = 0x0F; /* TODO: A.Stevens 2000 Why is this here? */
- for (i = 0; i < bytes_short - 7; i++)
- *(index++) = static_cast < uint8_t > (STUFFING_BYTE);
- }
-
- bytes_short = 0;
- }
-
- if (end_marker) {
- *(index++) = static_cast < uint8_t > ((ISO11172_END) >> 24);
- *(index++) = static_cast < uint8_t > ((ISO11172_END & 0x00ff0000) >> 16);
- *(index++) = static_cast < uint8_t > ((ISO11172_END & 0x0000ff00) >> 8);
- *(index++) = static_cast < uint8_t > (ISO11172_END & 0x000000ff);
- }
-
- for (i = 0; i < strm.zero_stuffing; i++)
- *(index++) = static_cast < uint8_t > (0);
-
-
- /* At this point padding or stuffing will have ensured the packet
- is filled to target_packet_data_size
- */
- RawWrite (sector_buf, sector_size);
- return actual_packet_data_size;
-}
-
-
-
-
-/*************************************************************************
- Create_Pack
- erstellt in einem Buffer die spezifischen Pack-Informationen.
- Diese werden dann spaeter von der Sector-Routine nochmals
- in dem Sektor kopiert.
-
- writes specifical pack header information into a buffer
- later this will be copied from the sector routine into
- the sector buffer
-*************************************************************************/
-
-void
-PS_Stream::CreatePack (Pack_struc * pack, clockticks SCR, unsigned int mux_rate)
-{
- uint8_t *index;
-
- index = pack->buf;
-
- *(index++) = static_cast < uint8_t > ((PACK_START) >> 24);
- *(index++) = static_cast < uint8_t > ((PACK_START & 0x00ff0000) >> 16);
- *(index++) = static_cast < uint8_t > ((PACK_START & 0x0000ff00) >> 8);
- *(index++) = static_cast < uint8_t > (PACK_START & 0x000000ff);
-
- if (mpeg_version == 2) {
- /* Annoying: MPEG-2's SCR pack header time is different from
- all the rest... */
- BufferMpeg2ScrTimecode (SCR, &index);
- *(index++) = static_cast < uint8_t > (mux_rate >> 14);
- *(index++) = static_cast < uint8_t > (0xff & (mux_rate >> 6));
- *(index++) = static_cast < uint8_t > (0x03 | ((mux_rate & 0x3f) << 2));
- *(index++) = static_cast < uint8_t > (RESERVED_BYTE << 3 | 0); /* No pack stuffing */
- } else {
- BufferDtsPtsMpeg1ScrTimecode (SCR, MARKER_MPEG1_SCR, &index);
- *(index++) = static_cast < uint8_t > (0x80 | (mux_rate >> 15));
- *(index++) = static_cast < uint8_t > (0xff & (mux_rate >> 7));
- *(index++) = static_cast < uint8_t > (0x01 | ((mux_rate & 0x7f) << 1));
- }
- pack->SCR = SCR;
- pack->length = index - pack->buf;
-}
-
-
-/*************************************************************************
- Create_Sys_Header
- erstelle in einem Buffer die spezifischen Sys_Header
- Informationen. Diese werden spaeter von der Sector-Routine
- nochmals zum Sectorbuffer kopiert.
-
- writes specifical system header information into a buffer
- later this will be copied from the sector routine into
- the sector buffer
- RETURN: Length of header created...
-*************************************************************************/
-
-void
-PS_Stream::CreateSysHeader (Sys_header_struc * sys_header,
- unsigned int rate_bound,
- bool fixed,
- int CSPS,
- bool audio_lock, bool video_lock, vector < MuxStream * >&streams)
-{
- uint8_t *index;
- uint8_t *len_index;
- int system_header_size;
-
- index = sys_header->buf;
- int video_bound = 0;
- int audio_bound = 0;
-
- vector < MuxStream * >::iterator str;
- for (str = streams.begin (); str < streams.end (); ++str) {
- switch (((*str)->stream_id & 0xe0)) {
- case 0xe0: // MPEG Video
- ++video_bound;
- break;
- case 0xb9: // DVD seems to use this stream id in
- ++video_bound; // system headers for video buffer size
- break;
- case 0xc0:
- ++audio_bound; // MPEG Audio
- break;
- default:
- break;
- }
- }
-
- /* if we are not using both streams, we should clear some
- options here */
-
- *(index++) = static_cast < uint8_t > ((SYS_HEADER_START) >> 24);
- *(index++) = static_cast < uint8_t > ((SYS_HEADER_START & 0x00ff0000) >> 16);
- *(index++) = static_cast < uint8_t > ((SYS_HEADER_START & 0x0000ff00) >> 8);
- *(index++) = static_cast < uint8_t > (SYS_HEADER_START & 0x000000ff);
-
- len_index = index; /* Skip length field for now... */
- index += 2;
-
- *(index++) = static_cast < uint8_t > (0x80 | (rate_bound >> 15));
- *(index++) = static_cast < uint8_t > (0xff & (rate_bound >> 7));
- *(index++) = static_cast < uint8_t > (0x01 | ((rate_bound & 0x7f) << 1));
- *(index++) = static_cast < uint8_t > ((audio_bound << 2) | (fixed << 1) | CSPS);
- *(index++) = static_cast < uint8_t > ((audio_lock << 7) | (video_lock << 6) | 0x20 | video_bound);
-
- *(index++) = static_cast < uint8_t > (RESERVED_BYTE);
- for (str = streams.begin (); str < streams.end (); ++str) {
- *(index++) = (*str)->stream_id;
- *(index++) = static_cast < uint8_t >
- (0xc0 | ((*str)->BufferScale () << 5) | ((*str)->BufferSizeCode () >> 8));
- *(index++) = static_cast < uint8_t > ((*str)->BufferSizeCode () & 0xff);
- }
-
-
- system_header_size = (index - sys_header->buf);
- len_index[0] = static_cast < uint8_t > ((system_header_size - 6) >> 8);
- len_index[1] = static_cast < uint8_t > ((system_header_size - 6) & 0xff);
- sys_header->length = system_header_size;
-}
-
-
-void
-PS_Stream::RawWrite (uint8_t * buf, unsigned int len)
-{
- if (callback (this, buf, len, user_data) != len) {
- mjpeg_error_exit1 ("Failed write");
- }
- written += len;
-}
-
-/*
- * Local variables:
- * c-file-style: "stroustrup"
- * tab-width: 4
- * indent-tabs-mode: nil
- * End:
- */
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-04 23:53:48 +0000