+++ /dev/null
-Makefile
-Makefile.in
-*.o
-*.lo
-*.la
-.deps
-.libs
+++ /dev/null
-
-plugin_LTLIBRARIES = libgstmpeg1systemencode.la
-
-libgstmpeg1systemencode_la_SOURCES = gstmpeg1systemencode.c \
- buffer.c \
- systems.c
-libgstmpeg1systemencode_la_CFLAGS = $(GST_CFLAGS)
-libgstmpeg1systemencode_la_LIBADD =
-libgstmpeg1systemencode_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
-libgstmpeg1systemencode_la_LIBTOOLFLAGS = $(GST_PLUGIN_LIBTOOLFLAGS)
-
-noinst_HEADERS = gstmpeg1systemencode.h \
- main.h \
- buffer.h
+++ /dev/null
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <string.h>
-
-#include <gst/gst.h>
-#include <gst/getbits/getbits.h>
-
-#include "buffer.h"
-
-#define SEQUENCE_HEADER 0x000001b3
-#define SEQUENCE_END 0x000001b7
-#define PICTURE_START 0x00000100
-#define GROUP_START 0x000001b8
-#define SYNCWORD_START 0x000001
-
-#define AUDIO_SYNCWORD 0xfff
-
-#define CLOCKS 90000.0
-
-#ifdef G_HAVE_ISO_VARARGS
-
-#define DEBUG(...) g_print (__VA_ARGS__)
-
-#elif defined(G_HAVE_GNUC_VARARGS)
-
-#define DEBUG(a, b...) g_print (##b)
-
-#endif
-
-/* This must match decoder and encoder tables */
-static const double picture_rates[16] = {
- 0.0,
- 24000.0 / 1001.,
- 24.0,
- 25.0,
- 30000.0 / 1001.,
- 30.0,
- 50.0,
- 60000.0 / 1001.,
- 60.0,
-
- 1,
- 5,
- 10,
- 12,
- 15,
- 0,
- 0
-};
-
-/* defined but not used
-static double ratio [16] = { 0., 1., 0.6735, 0.7031, 0.7615, 0.8055,
- 0.8437, 0.8935, 0.9157, 0.9815, 1.0255, 1.0695, 1.0950, 1.1575,
- 1.2015, 0.};
-*/
-
-#ifndef GST_DISABLE_GST_DEBUG
-static const char picture_types[4][3] = { "I", "P", "B", "D" };
-#endif
-
-static const int bitrate_index[2][3][16] =
- { {{0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448,},
- {0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384,},
- {0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320,}},
-{{0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256,},
- {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160,},
- {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160,}},
-};
-
-static const long frequency[9] =
- { 44100, 48000, 32000, 22050, 24000, 16000, 11025, 12000, 8000 };
-
-static const double dfrequency[9] =
- { 44.1, 48, 32, 22.05, 24, 16, 11.025, 12, 8 };
-
-static const unsigned int samples[4] = { 192, 384, 1152, 1152 };
-
-/* deined but not used
-static const char mode [4][15] =
- { "stereo", "joint stereo", "dual channel", "single channel" };
-static const char copyright [2][20] =
- { "no copyright","copyright protected" };
-static const char original [2][10] =
- { "copy","original" };
-static const char emphasis [4][20] =
- { "none", "50/15 microseconds", "reserved", "CCITT J.17" };
-*/
-static void mpeg1mux_buffer_update_video_info (Mpeg1MuxBuffer * mb);
-static void mpeg1mux_buffer_update_audio_info (Mpeg1MuxBuffer * mb);
-
-Mpeg1MuxBuffer *
-mpeg1mux_buffer_new (guchar type, guchar id)
-{
- Mpeg1MuxBuffer *new = g_malloc (sizeof (Mpeg1MuxBuffer));
-
- new->buffer = NULL;
- new->length = 0;
- new->base = 0;
- new->buffer_type = type;
- new->stream_id = id;
- new->scan_pos = 0;
- new->new_frame = TRUE;
- new->current_start = 0;
- new->timecode_list = NULL;
- new->queued_list = NULL;
- new->next_frame_time = 0;
-
- return new;
-}
-
-void
-mpeg1mux_buffer_queue (Mpeg1MuxBuffer * mb, GstBuffer * buf)
-{
-
- if (mb->buffer == NULL) {
- mb->buffer = g_malloc (GST_BUFFER_SIZE (buf));
- mb->length = GST_BUFFER_SIZE (buf);
- memcpy (mb->buffer, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
- } else {
- mb->buffer = g_realloc (mb->buffer, mb->length + GST_BUFFER_SIZE (buf));
- memcpy (mb->buffer + mb->length, GST_BUFFER_DATA (buf),
- GST_BUFFER_SIZE (buf));
- mb->length += GST_BUFFER_SIZE (buf);
- }
-
- GST_DEBUG ("queuing buffer %lu", mb->length);
- if (mb->buffer_type == BUFFER_TYPE_VIDEO) {
- mpeg1mux_buffer_update_video_info (mb);
- } else {
- mpeg1mux_buffer_update_audio_info (mb);
- }
-}
-
-gulong
-mpeg1mux_buffer_update_queued (Mpeg1MuxBuffer * mb, guint64 scr)
-{
- GList *queued_list;
- Mpeg1MuxTimecode *tc;
- gulong total_queued = 0;
-
- GST_DEBUG ("queued in buffer on SCR=%" G_GUINT64_FORMAT, scr);
- queued_list = g_list_first (mb->queued_list);
-
- while (queued_list) {
- tc = (Mpeg1MuxTimecode *) queued_list->data;
- if (tc->DTS < scr) {
- /* this buffer should be sent out */
- mb->queued_list = g_list_remove (mb->queued_list, tc);
- queued_list = g_list_first (mb->queued_list);
- } else {
- GST_DEBUG ("queued in buffer %ld, %" G_GUINT64_FORMAT,
- tc->original_length, tc->DTS);
- total_queued += tc->original_length;
- queued_list = g_list_next (queued_list);
- }
- }
- GST_DEBUG ("queued in buffer %lu", total_queued);
-
- return total_queued;
-}
-
-void
-mpeg1mux_buffer_shrink (Mpeg1MuxBuffer * mb, gulong size)
-{
- GList *timecode_list;
- Mpeg1MuxTimecode *tc;
- gulong consumed = 0;
- gulong count;
-
- GST_DEBUG ("shrinking buffer %lu", size);
-
- g_assert (mb->length >= size);
-
- memcpy (mb->buffer, mb->buffer + size, mb->length - size);
- mb->buffer = g_realloc (mb->buffer, mb->length - size);
-
- mb->length -= size;
- mb->scan_pos -= size;
- mb->current_start -= size;
-
- timecode_list = g_list_first (mb->timecode_list);
- tc = (Mpeg1MuxTimecode *) timecode_list->data;
-
- if (tc->length > size) {
- tc->length -= size;
- mb->new_frame = FALSE;
- } else {
- consumed += tc->length;
- while (size >= consumed) {
- GST_DEBUG ("removing timecode: %" G_GUINT64_FORMAT " %" G_GUINT64_FORMAT
- " %lu %lu", tc->DTS, tc->PTS, tc->length, consumed);
- mb->timecode_list = g_list_remove_link (mb->timecode_list, timecode_list);
- mb->queued_list = g_list_append (mb->queued_list, tc);
- timecode_list = g_list_first (mb->timecode_list);
- tc = (Mpeg1MuxTimecode *) timecode_list->data;
- consumed += tc->length;
- GST_DEBUG ("next timecode: %" G_GUINT64_FORMAT " %" G_GUINT64_FORMAT
- " %lu %lu", tc->DTS, tc->PTS, tc->length, consumed);
- }
- mb->new_frame = TRUE;
- GST_DEBUG ("leftover frame size from %lu to %lu ", tc->length,
- consumed - size);
- tc->length = consumed - size;
- }
-
- if (mb->buffer_type == BUFFER_TYPE_VIDEO) {
- mb->info.video.DTS = tc->DTS;
- mb->info.video.PTS = tc->PTS;
- mb->next_frame_time = tc->DTS;
- } else {
- mb->info.audio.PTS = tc->PTS;
- mb->next_frame_time = tc->PTS;
- }
- GST_DEBUG ("next frame time timecode: %" G_GUINT64_FORMAT " %lu",
- mb->next_frame_time, tc->length);
-
- /* check buffer consistency */
- timecode_list = g_list_first (mb->timecode_list);
- count = 0;
-
- while (timecode_list) {
- tc = (Mpeg1MuxTimecode *) timecode_list->data;
- count += tc->length;
-
- timecode_list = g_list_next (timecode_list);
- }
-
- if (count != mb->current_start)
- g_print ("********** error %lu != %lu\n", count, mb->current_start);
-
- mb->base += size;
-}
-
-static void
-mpeg1mux_buffer_update_video_info (Mpeg1MuxBuffer * mb)
-{
- gboolean have_sync = FALSE;
- guchar *data = mb->buffer;
- gulong offset = mb->scan_pos;
- guint sync_zeros = 0;
- gulong id = 0;
- guint temporal_reference, temp;
- gst_getbits_t gb;
-
-
- GST_DEBUG ("mpeg1mux::update_video_info %lu %lu", mb->base, mb->scan_pos);
- if (mb->base == 0 && mb->scan_pos == 0) {
- if ((SYNCWORD_START << 8) + *(mb->buffer + 3) == SEQUENCE_HEADER) {
-
- gst_getbits_init (&gb, NULL, NULL);
- gst_getbits_newbuf (&gb, data + 4, mb->length);
- mb->info.video.horizontal_size = gst_getbits12 (&gb);
- mb->info.video.vertical_size = gst_getbits12 (&gb);
- mb->info.video.aspect_ratio = gst_getbits4 (&gb);
- mb->info.video.picture_rate = gst_getbits4 (&gb);
- mb->info.video.bit_rate = gst_getbits18 (&gb);
- if (gst_getbits1 (&gb) != 1) {
- g_print ("mpeg1mux::update_video_info: marker bit error\n");
- }
- mb->info.video.vbv_buffer_size = gst_getbits10 (&gb);
- mb->info.video.CSPF = gst_getbits1 (&gb);
-
- mb->info.video.secs_per_frame =
- 1. / picture_rates[mb->info.video.picture_rate];
- mb->info.video.decoding_order = 0;
- mb->info.video.group_order = 0;
- GST_DEBUG ("mpeg1mux::update_video_info: secs per frame %g",
- mb->info.video.secs_per_frame);
- } else {
- g_print ("mpeg1mux::update_video_info: Invalid MPEG Video header\n");
- }
- }
- while (offset < mb->length - 6) {
- if (!have_sync) {
- guchar byte = *(data + offset);
-
- /*GST_DEBUG ("mpeg1mux::update_video_info: found #%d at %lu",byte,offset); */
- offset++;
- /* if it's zero, increment the zero count */
- if (byte == 0) {
- sync_zeros++;
- /*GST_DEBUG ("mpeg1mux::update_video_info: found zero #%d at %lu",sync_zeros,offset-1); */
- }
- /* if it's a one and we have two previous zeros, we have sync */
- else if ((byte == 1) && (sync_zeros >= 2)) {
- GST_DEBUG ("mpeg1mux::update_video_info: synced at %lu", offset - 1);
- have_sync = TRUE;
- sync_zeros = 0;
- }
- /* if it's anything else, we've lost it completely */
- else
- sync_zeros = 0;
- /* then snag the chunk ID */
- } else if (id == 0) {
- id = *(data + offset);
- GST_DEBUG ("mpeg1mux::update_video_info: got id 0x%02lX", id);
- id = (SYNCWORD_START << 8) + id;
- switch (id) {
- case SEQUENCE_HEADER:
- GST_DEBUG ("mpeg1mux::update_video_info: sequence header");
- break;
- case GROUP_START:
- GST_DEBUG ("mpeg1mux::update_video_info: group start");
- mb->info.video.group_order = 0;
- break;
- case PICTURE_START:
- /* skip the first access unit */
- if (mb->info.video.decoding_order != 0) {
- Mpeg1MuxTimecode *tc;
-
- GST_DEBUG ("mpeg1mux::update_video_info: PTS %" G_GUINT64_FORMAT
- ", DTS %" G_GUINT64_FORMAT ", length %lu",
- mb->info.video.current_PTS, mb->info.video.current_DTS,
- offset - mb->current_start - 3);
-
- tc = (Mpeg1MuxTimecode *) g_malloc (sizeof (Mpeg1MuxTimecode));
- tc->length = offset - mb->current_start - 3;
- tc->original_length = tc->length;
- tc->frame_type = mb->info.video.current_type;
- tc->DTS = mb->info.video.current_DTS;
- tc->PTS = mb->info.video.current_PTS;
-
- mb->timecode_list = g_list_append (mb->timecode_list, tc);
-
- if (mb->info.video.decoding_order == 0) {
- mb->next_frame_time = tc->DTS;
- }
-
- mb->current_start = offset - 3;
- }
-
- temp = (*(data + offset + 1) << 8) + *(data + offset + 2);
- temporal_reference = (temp & 0xffc0) >> 6;
- mb->info.video.current_type = (temp & 0x0038) >> 3;
- GST_DEBUG
- ("mpeg1mux::update_video_info: picture start temporal_ref:%d type:%s Frame",
- temporal_reference,
- picture_types[mb->info.video.current_type - 1]);
-
- mb->info.video.current_DTS =
- mb->info.video.decoding_order * mb->info.video.secs_per_frame *
- CLOCKS;
- mb->info.video.current_PTS =
- (temporal_reference - mb->info.video.group_order + 1 +
- mb->info.video.decoding_order) * mb->info.video.secs_per_frame *
- CLOCKS;
-
- mb->info.video.decoding_order++;
- mb->info.video.group_order++;
-
-
- offset++;
- break;
- case SEQUENCE_END:
- GST_DEBUG ("mpeg1mux::update_video_info: sequence end");
- break;
- }
- /* prepare for next sync */
- offset++;
- have_sync = FALSE;
- id = 0;
- sync_zeros = 0;
- }
- }
- mb->scan_pos = offset;
-}
-
-static void
-mpeg1mux_buffer_update_audio_info (Mpeg1MuxBuffer * mb)
-{
- guchar *data = mb->buffer;
- gulong offset = mb->scan_pos;
- guint32 id = 0;
- guint padding_bit;
- gst_getbits_t gb;
- guint startup_delay = 0;
- int layer_index, lsf, samplerate_index, padding;
- long bpf;
- Mpeg1MuxTimecode *tc;
-
-
- GST_DEBUG ("mpeg1mux::update_audio_info %lu %lu", mb->base, mb->scan_pos);
- if (mb->base == 0 && mb->scan_pos == 0) {
- id = GST_READ_UINT32_BE (data);
-
- printf ("MPEG audio id = %08x\n", (unsigned int) id);
- if ((id & 0xfff00000) == AUDIO_SYNCWORD << 20) {
-
- /* mpegver = (header >> 19) & 0x3; don't need this for bpf */
- layer_index = (id >> 17) & 0x3;
- mb->info.audio.layer = 4 - layer_index;
- lsf = (id & (1 << 20)) ? ((id & (1 << 19)) ? 0 : 1) : 1;
- mb->info.audio.bit_rate =
- bitrate_index[lsf][mb->info.audio.layer - 1][((id >> 12) & 0xf)];
- samplerate_index = (id >> 10) & 0x3;
- padding = (id >> 9) & 0x1;
-
- if (mb->info.audio.layer == 1) {
- bpf = mb->info.audio.bit_rate * 12000;
- bpf /= frequency[samplerate_index];
- bpf = ((bpf + padding) << 2);
- } else {
- bpf = mb->info.audio.bit_rate * 144000;
- bpf /= frequency[samplerate_index];
- bpf += padding;
- }
- mb->info.audio.framesize = bpf;
-
- GST_DEBUG ("mpeg1mux::update_audio_info: samples per second %d",
- samplerate_index);
-
- gst_getbits_init (&gb, NULL, NULL);
- gst_getbits_newbuf (&gb, data, mb->length);
-
- gst_flushbitsn (&gb, 12);
- if (gst_getbits1 (&gb) != 1) {
- g_print ("mpeg1mux::update_audio_info: marker bit error\n");
- }
- gst_flushbitsn (&gb, 2);
- mb->info.audio.protection = gst_getbits1 (&gb);
- gst_flushbitsn (&gb, 4);
- mb->info.audio.frequency = gst_getbits2 (&gb);
- padding_bit = gst_getbits1 (&gb);
- gst_flushbitsn (&gb, 1);
- mb->info.audio.mode = gst_getbits2 (&gb);
- mb->info.audio.mode_extension = gst_getbits2 (&gb);
- mb->info.audio.copyright = gst_getbits1 (&gb);
- mb->info.audio.original_copy = gst_getbits1 (&gb);
- mb->info.audio.emphasis = gst_getbits2 (&gb);
-
- GST_DEBUG ("mpeg1mux::update_audio_info: layer %d", mb->info.audio.layer);
- GST_DEBUG ("mpeg1mux::update_audio_info: bit_rate %d",
- mb->info.audio.bit_rate);
- GST_DEBUG ("mpeg1mux::update_audio_info: frequency %d",
- mb->info.audio.frequency);
-
- mb->info.audio.samples_per_second =
- (double) dfrequency[mb->info.audio.frequency];
-
- GST_DEBUG ("mpeg1mux::update_audio_info: samples per second %g",
- mb->info.audio.samples_per_second);
-
- mb->info.audio.decoding_order = 0;
-
- tc = (Mpeg1MuxTimecode *) g_malloc (sizeof (Mpeg1MuxTimecode));
- tc->length = mb->info.audio.framesize;
- tc->original_length = tc->length;
- tc->frame_type = FRAME_TYPE_AUDIO;
-
- mb->info.audio.current_PTS =
- mb->info.audio.decoding_order * samples[mb->info.audio.layer] /
- mb->info.audio.samples_per_second * 90. + startup_delay;
-
- GST_DEBUG ("mpeg1mux::update_audio_info: PTS %" G_GUINT64_FORMAT
- ", length %u", mb->info.audio.current_PTS, mb->info.audio.framesize);
- tc->PTS = mb->info.audio.current_PTS;
- tc->DTS = mb->info.audio.current_PTS;
- mb->timecode_list = g_list_append (mb->timecode_list, tc);
-
- mb->next_frame_time = tc->PTS;
-
- mb->info.audio.decoding_order++;
- offset += tc->length;
- } else {
- g_print ("mpeg1mux::update_audio_info: Invalid MPEG Video header\n");
- }
- }
- while (offset < mb->length - 4) {
- id = GST_READ_UINT32_BE (data + offset);
-
- /* mpegver = (header >> 19) & 0x3; don't need this for bpf */
- layer_index = (id >> 17) & 0x3;
- mb->info.audio.layer = 4 - layer_index;
- lsf = (id & (1 << 20)) ? ((id & (1 << 19)) ? 0 : 1) : 1;
- mb->info.audio.bit_rate =
- bitrate_index[lsf][mb->info.audio.layer - 1][((id >> 12) & 0xf)];
- samplerate_index = (id >> 10) & 0x3;
- padding = (id >> 9) & 0x1;
-
- if (mb->info.audio.layer == 1) {
- bpf = mb->info.audio.bit_rate * 12000;
- bpf /= frequency[samplerate_index];
- bpf = ((bpf + padding) << 2);
- } else {
- bpf = mb->info.audio.bit_rate * 144000;
- bpf /= frequency[samplerate_index];
- bpf += padding;
- }
- tc = (Mpeg1MuxTimecode *) g_malloc (sizeof (Mpeg1MuxTimecode));
- tc->length = bpf;
- tc->original_length = tc->length;
- tc->frame_type = FRAME_TYPE_AUDIO;
-
- mb->current_start = offset + bpf;
-
- mb->info.audio.samples_per_second =
- (double) dfrequency[mb->info.audio.frequency];
-
- mb->info.audio.current_PTS =
- (mb->info.audio.decoding_order * samples[mb->info.audio.layer]) /
- mb->info.audio.samples_per_second * 90.;
-
- tc->DTS = tc->PTS = mb->info.audio.current_PTS;
- GST_DEBUG ("mpeg1mux::update_audio_info: PTS %" G_GUINT64_FORMAT ", %"
- G_GUINT64_FORMAT " length %lu", mb->info.audio.current_PTS, tc->PTS,
- tc->length);
- mb->timecode_list = g_list_append (mb->timecode_list, tc);
-
- mb->info.audio.decoding_order++;
- offset += tc->length;
- }
- mb->scan_pos = offset;
-}
+++ /dev/null
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-
-#ifndef __BUFFER_H__
-#define __BUFFER_H__
-
-#include <gst/gst.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-#define MPEG1MUX_BUFFER_QUEUED(mb) (g_list_length((mb)->timecode_list))
-#define MPEG1MUX_BUFFER_SPACE(mb) ((mb)->length)
-#define MPEG1MUX_BUFFER_DATA(mb) ((mb)->buffer)
-#define MPEG1MUX_BUFFER_TYPE(mb) ((mb)->buffer)
-#define MPEG1MUX_BUFFER_FIRST_TIMECODE(mb) (g_list_first((mb)->timecode_list)->data)
-
-#define BUFFER_TYPE_VIDEO 1
-#define BUFFER_TYPE_AUDIO 2
-
-#define FRAME_TYPE_IFRAME 1
-#define FRAME_TYPE_BFRAME 2
-#define FRAME_TYPE_PFRAME 3
-#define FRAME_TYPE_AUDIO 4
-
-typedef struct _Mpeg1MuxBuffer Mpeg1MuxBuffer;
-typedef struct _Mpeg1MuxTimecode Mpeg1MuxTimecode;
-
-typedef struct video_struc /* Informationen ueber Video Stream */
-{
- unsigned int stream_length ;
- unsigned int num_sequence ;
- unsigned int num_seq_end ;
- unsigned int num_pictures ;
- unsigned int num_groups ;
- unsigned int num_frames[4] ;
- unsigned int avg_frames[4] ;
-
- unsigned int horizontal_size;
- unsigned int vertical_size ;
- unsigned int aspect_ratio ;
- unsigned int picture_rate ;
- unsigned int bit_rate ;
- unsigned int comp_bit_rate ;
- unsigned int vbv_buffer_size;
- unsigned int CSPF ;
-
- guint64 PTS;
- guint64 DTS;
-
- guint64 current_PTS;
- guint64 current_DTS;
- guchar current_type;
-
- double secs_per_frame;
- gulong group_order, decoding_order;
-} Video_struc;
-
-typedef struct audio_struc /* Informationen ueber Audio Stream */
-{
- unsigned int stream_length ;
- unsigned int num_syncword ;
- unsigned int num_frames [2] ;
- unsigned int framesize ;
- unsigned int layer ;
- unsigned int protection ;
- unsigned int bit_rate ;
- unsigned int frequency ;
- unsigned int mode ;
- unsigned int mode_extension ;
- unsigned int copyright ;
- unsigned int original_copy ;
- unsigned int emphasis ;
-
- guint64 PTS;
-
- guint64 current_PTS;
-
- double samples_per_second;
- gulong decoding_order;
-} Audio_struc;
-
-struct _Mpeg1MuxTimecode {
- gulong length;
- gulong original_length;
- guchar frame_type;
- guint64 PTS;
- guint64 DTS;
-};
-
-struct _Mpeg1MuxBuffer {
- unsigned char *buffer;
- gulong length;
- gulong base;
- gulong scan_pos;
- gulong last_pos;
- gulong current_start;
- guchar buffer_type;
- guchar stream_id;
- gboolean new_frame;
- guint64 next_frame_time;
-
- union {
- Video_struc video;
- Audio_struc audio;
- } info;
-
- GList *timecode_list;
- GList *queued_list;
-};
-
-Mpeg1MuxBuffer *mpeg1mux_buffer_new(guchar type, guchar id);
-
-void mpeg1mux_buffer_queue(Mpeg1MuxBuffer *mb, GstBuffer *buf);
-void mpeg1mux_buffer_shrink(Mpeg1MuxBuffer *mb, gulong size);
-gulong mpeg1mux_buffer_update_queued(Mpeg1MuxBuffer *mb, guint64 scr);
-
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __BUFFER_H__ */
+++ /dev/null
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-/*#define DEBUG_ENABLED */
-#include "gstmpeg1systemencode.h"
-#include "main.h"
-
-/* GstMPEG1SystemEncode signals and args */
-enum
-{
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum
-{
- PROP_0
- /* FILL ME */
-};
-
-static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS ("video/mpeg, " "systemstream = (boolean) TRUE")
- );
-static GstStaticPadTemplate video_sink_factory =
-GST_STATIC_PAD_TEMPLATE ("video_%u",
- GST_PAD_SINK,
- GST_PAD_REQUEST,
- GST_STATIC_CAPS ("video/mpeg, "
- "mpegversion = (int) 1, " "systemstream = (boolean) FALSE")
- );
-
-static GstStaticPadTemplate audio_sink_factory =
-GST_STATIC_PAD_TEMPLATE ("audio_%u",
- GST_PAD_SINK,
- GST_PAD_REQUEST,
- GST_STATIC_CAPS ("audio/mpeg, "
- "mpegversion = (int) 1, " "layer = (int) [ 1, 2 ] ")
- );
-
-static void gst_system_encode_class_init (GstMPEG1SystemEncodeClass * klass);
-static void gst_system_encode_base_init (GstMPEG1SystemEncodeClass * klass);
-static void gst_system_encode_init (GstMPEG1SystemEncode * system_encode);
-
-static GstPad *gst_system_encode_request_new_pad (GstElement * element,
- GstPadTemplate * templ, const gchar * unused);
-static void gst_system_encode_chain (GstPad * pad, GstData * _data);
-
-static void gst_system_encode_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_system_encode_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static GstElementClass *parent_class = NULL;
-
-/*static guint gst_system_encode_signals[LAST_SIGNAL] = { 0 }; */
-
-GType
-gst_mpeg1_system_encode_get_type (void)
-{
- static GType system_encode_type = 0;
-
- if (!system_encode_type) {
- static const GTypeInfo system_encode_info = {
- sizeof (GstMPEG1SystemEncodeClass),
- (GBaseInitFunc) gst_system_encode_base_init,
- NULL,
- (GClassInitFunc) gst_system_encode_class_init,
- NULL,
- NULL,
- sizeof (GstMPEG1SystemEncode),
- 0,
- (GInstanceInitFunc) gst_system_encode_init,
- NULL
- };
-
- system_encode_type =
- g_type_register_static (GST_TYPE_ELEMENT, "GstMPEG1SystemEncode",
- &system_encode_info, 0);
- }
- return system_encode_type;
-}
-
-static void
-gst_system_encode_base_init (GstMPEG1SystemEncodeClass * klass)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&src_factory));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&audio_sink_factory));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&video_sink_factory));
- gst_element_class_set_static_metadata (element_class, "MPEG-1 muxer",
- "Codec/Muxer",
- "Multiplexes MPEG-1 Streams", "Wim Taymans <wim.taymans@chello.be>");
-}
-
-static void
-gst_system_encode_class_init (GstMPEG1SystemEncodeClass * klass)
-{
- GObjectClass *gobject_class;
- GstElementClass *gstelement_class;
-
- gobject_class = (GObjectClass *) klass;
- gstelement_class = (GstElementClass *) klass;
-
- parent_class = g_type_class_peek_parent (klass);
-
- gobject_class->set_property = gst_system_encode_set_property;
- gobject_class->get_property = gst_system_encode_get_property;
-
- gstelement_class->request_new_pad = gst_system_encode_request_new_pad;
-}
-
-static void
-gst_system_encode_init (GstMPEG1SystemEncode * system_encode)
-{
- system_encode->srcpad =
- gst_pad_new_from_static_template (&src_factory, "src");
- gst_element_add_pad (GST_ELEMENT (system_encode), system_encode->srcpad);
-
- system_encode->video_buffer = mpeg1mux_buffer_new (BUFFER_TYPE_VIDEO, 0xE0);
- system_encode->audio_buffer = mpeg1mux_buffer_new (BUFFER_TYPE_AUDIO, 0xC0);
- system_encode->have_setup = FALSE;
- system_encode->mta = NULL;
- system_encode->packet_size = 2048;
- system_encode->lock = g_mutex_new ();
- system_encode->current_pack = system_encode->packets_per_pack = 3;
- system_encode->video_delay_ms = 0;
- system_encode->audio_delay_ms = 0;
- system_encode->sectors_delay = 0;
- system_encode->startup_delay = ~1;
- system_encode->which_streams = 0;
- system_encode->num_audio_pads = 0;
- system_encode->num_video_pads = 0;
- system_encode->pack = g_malloc (sizeof (Pack_struc));
- system_encode->sys_header = g_malloc (sizeof (Sys_header_struc));
- system_encode->sector = g_malloc (sizeof (Sector_struc));
-
-}
-
-static GstPad *
-gst_system_encode_request_new_pad (GstElement * element, GstPadTemplate * templ,
- const gchar * unused)
-{
- GstMPEG1SystemEncode *system_encode;
- gchar *name = NULL;
- GstPad *newpad;
-
- g_return_val_if_fail (templ != NULL, NULL);
-
- if (templ->direction != GST_PAD_SINK) {
- g_warning ("system_encode: request pad that is not a SINK pad\n");
- return NULL;
- }
- system_encode = GST_SYSTEM_ENCODE (element);
-
- if (templ == gst_static_pad_template_get (&audio_sink_factory)) {
- name = g_strdup_printf ("audio_%02d", system_encode->num_audio_pads);
- g_print ("%s\n", name);
- newpad = gst_pad_new_from_template (templ, name);
- gst_pad_set_element_private (newpad,
- GINT_TO_POINTER (system_encode->num_audio_pads));
-
- system_encode->audio_pad[system_encode->num_audio_pads] = newpad;
- system_encode->num_audio_pads++;
- system_encode->which_streams |= STREAMS_AUDIO;
- } else if (templ == gst_static_pad_template_get (&video_sink_factory)) {
- name = g_strdup_printf ("video_%02d", system_encode->num_video_pads);
- g_print ("%s\n", name);
- newpad = gst_pad_new_from_template (templ, name);
- gst_pad_set_element_private (newpad,
- GINT_TO_POINTER (system_encode->num_video_pads));
-
- system_encode->video_pad[system_encode->num_video_pads] = newpad;
- system_encode->num_video_pads++;
- system_encode->which_streams |= STREAMS_VIDEO;
- } else {
- g_warning ("system_encode: this is not our template!\n");
- return NULL;
- }
-
- gst_pad_set_chain_function (newpad, gst_system_encode_chain);
- gst_element_add_pad (GST_ELEMENT (system_encode), newpad);
-
- return newpad;
-}
-
-/* return a list of all the highest prioripty streams */
-static GList *
-gst_system_encode_pick_streams (GList * mta,
- GstMPEG1SystemEncode * system_encode)
-{
- guint64 lowest = ~1;
-
- GST_DEBUG ("pick_streams: %" G_GINT64_FORMAT ", %" G_GINT64_FORMAT,
- system_encode->video_buffer->next_frame_time,
- system_encode->audio_buffer->next_frame_time);
-
- if (system_encode->which_streams & STREAMS_VIDEO) {
- if (system_encode->video_buffer->next_frame_time <
- lowest - system_encode->video_delay) {
- lowest = system_encode->video_buffer->next_frame_time;
- }
- }
- if (system_encode->which_streams & STREAMS_AUDIO) {
- if (system_encode->audio_buffer->next_frame_time <
- lowest - system_encode->audio_delay) {
- lowest = system_encode->audio_buffer->next_frame_time;
- }
- }
-
- if (system_encode->which_streams & STREAMS_VIDEO) {
- if (system_encode->video_buffer->next_frame_time == lowest) {
- mta = g_list_append (mta, system_encode->video_buffer);
- }
- }
- if (system_encode->which_streams & STREAMS_AUDIO) {
- if (system_encode->audio_buffer->next_frame_time == lowest) {
- mta = g_list_append (mta, system_encode->audio_buffer);
- }
- }
- return mta;
-}
-
-static gboolean
-gst_system_encode_have_data (GstMPEG1SystemEncode * system_encode)
-{
-
- if (system_encode->which_streams == (STREAMS_VIDEO | STREAMS_AUDIO)) {
- if (MPEG1MUX_BUFFER_QUEUED (system_encode->audio_buffer) > 2 &&
- MPEG1MUX_BUFFER_SPACE (system_encode->audio_buffer) >
- system_encode->packet_size * 2
- && MPEG1MUX_BUFFER_QUEUED (system_encode->video_buffer) > 2
- && MPEG1MUX_BUFFER_SPACE (system_encode->video_buffer) >
- system_encode->packet_size * 2) {
- return TRUE;
- }
- }
- if (system_encode->which_streams == STREAMS_VIDEO) {
- if (MPEG1MUX_BUFFER_QUEUED (system_encode->video_buffer) > 2 &&
- MPEG1MUX_BUFFER_SPACE (system_encode->video_buffer) >
- system_encode->packet_size * 2) {
- return TRUE;
- }
- }
- if (system_encode->which_streams == STREAMS_VIDEO) {
- if (MPEG1MUX_BUFFER_QUEUED (system_encode->audio_buffer) > 2 &&
- MPEG1MUX_BUFFER_SPACE (system_encode->audio_buffer) >
- system_encode->packet_size * 2) {
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-static GList *
-gst_system_encode_update_mta (GstMPEG1SystemEncode * system_encode, GList * mta,
- gulong size)
-{
- GList *streams = g_list_first (mta);
- Mpeg1MuxBuffer *mb = (Mpeg1MuxBuffer *) streams->data;
-
- GST_DEBUG ("system_encode::multiplex: update mta");
-
- mpeg1mux_buffer_shrink (mb, size);
-
- mta = g_list_remove (mta, mb);
-
- return mta;
-}
-
-static void
-gst_system_setup_multiplex (GstMPEG1SystemEncode * system_encode)
-{
- Mpeg1MuxTimecode *video_tc, *audio_tc;
-
- system_encode->audio_buffer_size = 4 * 1024;
- system_encode->video_buffer_size = 46 * 1024;
- system_encode->bytes_output = 0;
- system_encode->min_packet_data =
- system_encode->packet_size - PACK_HEADER_SIZE - SYS_HEADER_SIZE -
- PACKET_HEADER_SIZE - AFTER_PACKET_LENGTH;
- system_encode->max_packet_data =
- system_encode->packet_size - PACKET_HEADER_SIZE - AFTER_PACKET_LENGTH;
-
- if (system_encode->which_streams & STREAMS_VIDEO) {
- system_encode->video_rate =
- system_encode->video_buffer->info.video.bit_rate * 50;
- } else
- system_encode->video_rate = 0;
- if (system_encode->which_streams & STREAMS_AUDIO)
- system_encode->audio_rate =
- system_encode->audio_buffer->info.audio.bit_rate * 128;
- else
- system_encode->audio_rate = 0;
-
- system_encode->data_rate =
- system_encode->video_rate + system_encode->audio_rate;
-
- system_encode->dmux_rate = ceil ((double) (system_encode->data_rate) *
- ((double) (system_encode->packet_size) /
- (double) (system_encode->min_packet_data) +
- ((double) (system_encode->packet_size) /
- (double) (system_encode->max_packet_data) *
- (double) (system_encode->packets_per_pack -
- 1.))) / (double) (system_encode->packets_per_pack));
- system_encode->data_rate = ceil (system_encode->dmux_rate / 50.) * 50;
-
- GST_DEBUG
- ("system_encode::multiplex: data_rate %u, video_rate: %u, audio_rate: %u",
- system_encode->data_rate, system_encode->video_rate,
- system_encode->audio_rate);
-
- system_encode->video_delay =
- (double) system_encode->video_delay_ms * (double) (CLOCKS / 1000);
- system_encode->audio_delay =
- (double) system_encode->audio_delay_ms * (double) (CLOCKS / 1000);
-
- system_encode->mux_rate = ceil (system_encode->dmux_rate / 50.);
- system_encode->dmux_rate = system_encode->mux_rate * 50.;
-
- video_tc = MPEG1MUX_BUFFER_FIRST_TIMECODE (system_encode->video_buffer);
- audio_tc = MPEG1MUX_BUFFER_FIRST_TIMECODE (system_encode->audio_buffer);
-
- GST_DEBUG ("system_encode::video tc %" G_GINT64_FORMAT ", audio tc %"
- G_GINT64_FORMAT ":", video_tc->DTS, audio_tc->DTS);
-
- system_encode->delay = ((double) system_encode->sectors_delay +
- ceil ((double) video_tc->length /
- (double) system_encode->min_packet_data) +
- ceil ((double) video_tc->length /
- (double) system_encode->min_packet_data)) *
- (double) system_encode->packet_size / system_encode->dmux_rate *
- (double) CLOCKS;
-
- system_encode->audio_delay += system_encode->delay;
- system_encode->video_delay += system_encode->delay;
-
- system_encode->audio_delay = 0;
- system_encode->video_delay = 0;
- system_encode->delay = 0;
-
- GST_DEBUG ("system_encode::multiplex: delay %g, mux_rate: %lu",
- system_encode->delay, system_encode->mux_rate);
-}
-
-static void
-gst_system_encode_multiplex (GstMPEG1SystemEncode * system_encode)
-{
- GList *streams;
- Mpeg1MuxBuffer *mb = (Mpeg1MuxBuffer *) streams->data;
- guchar timestamps;
- guchar buffer_scale;
- GstBuffer *outbuf;
- Pack_struc *pack;
- Sys_header_struc *sys_header;
- Mpeg1MuxTimecode *tc;
- gulong buffer_size, non_scaled_buffer_size, total_queued;
- guint64 PTS, DTS;
-
- g_mutex_lock (system_encode->lock);
-
- while (gst_system_encode_have_data (system_encode)) {
- GST_DEBUG ("system_encode::multiplex: multiplexing");
-
- if (!system_encode->have_setup) {
- gst_system_setup_multiplex (system_encode);
- system_encode->have_setup = TRUE;
- }
-
- if (system_encode->mta == NULL) {
- system_encode->mta =
- gst_system_encode_pick_streams (system_encode->mta, system_encode);
- }
- if (system_encode->mta == NULL)
- break;
-
-
- system_encode->SCR =
- (guint64) (system_encode->bytes_output +
- LAST_SCR_BYTE_IN_PACK) * CLOCKS / system_encode->dmux_rate;
-
-
- streams = g_list_first (system_encode->mta);
- mb = (Mpeg1MuxBuffer *) streams->data;
-
- if (system_encode->current_pack == system_encode->packets_per_pack) {
- create_pack (system_encode->pack, system_encode->SCR,
- system_encode->mux_rate);
- create_sys_header (system_encode->sys_header, system_encode->mux_rate, 1,
- 1, 1, 1, 1, 1, AUDIO_STR_0, 0, system_encode->audio_buffer_size / 128,
- VIDEO_STR_0, 1, system_encode->video_buffer_size / 1024,
- system_encode->which_streams);
- system_encode->current_pack = 0;
- pack = system_encode->pack;
- sys_header = system_encode->sys_header;
- } else {
- system_encode->current_pack++;
- pack = NULL;
- sys_header = NULL;
- }
-
- tc = MPEG1MUX_BUFFER_FIRST_TIMECODE (mb);
- if (mb->new_frame) {
- GST_DEBUG ("system_encode::multiplex: new frame");
- if (tc->frame_type == FRAME_TYPE_AUDIO
- || tc->frame_type == FRAME_TYPE_IFRAME
- || tc->frame_type == FRAME_TYPE_PFRAME) {
- timestamps = TIMESTAMPS_PTS;
- } else {
- timestamps = TIMESTAMPS_PTS_DTS;
- }
- } else {
- timestamps = TIMESTAMPS_NO;
- }
-
- if (tc->frame_type != FRAME_TYPE_AUDIO) {
- if (tc->PTS < system_encode->startup_delay)
- system_encode->startup_delay = tc->PTS;
- }
-
- if (tc->frame_type == FRAME_TYPE_AUDIO) {
- buffer_scale = 0;
- non_scaled_buffer_size = system_encode->audio_buffer_size;
- buffer_size = system_encode->audio_buffer_size / 128;
- PTS = tc->PTS + system_encode->audio_delay + system_encode->startup_delay;
- DTS = tc->PTS + system_encode->audio_delay + system_encode->startup_delay;
- } else {
- buffer_scale = 1;
- non_scaled_buffer_size = system_encode->video_buffer_size;
- buffer_size = system_encode->video_buffer_size / 1024;
- PTS = tc->PTS + system_encode->video_delay;
- DTS = tc->DTS + system_encode->video_delay;
- }
-
- total_queued = mpeg1mux_buffer_update_queued (mb, system_encode->SCR);
-
- if (non_scaled_buffer_size - total_queued >= system_encode->packet_size) {
-
- /* write the pack/packet here */
- create_sector (system_encode->sector, pack, sys_header,
- system_encode->packet_size,
- MPEG1MUX_BUFFER_DATA (mb), mb->stream_id, buffer_scale,
- buffer_size, TRUE, PTS, DTS,
- timestamps, system_encode->which_streams);
- /* update mta */
- system_encode->mta =
- gst_system_encode_update_mta (system_encode, system_encode->mta,
- system_encode->sector->length_of_packet_data);
- } else {
- /* write a padding packet */
- create_sector (system_encode->sector, pack, sys_header,
- system_encode->packet_size, NULL, PADDING_STR, 0,
- 0, FALSE, 0, 0, TIMESTAMPS_NO, system_encode->which_streams);
- }
-
- outbuf = gst_buffer_new ();
- GST_BUFFER_DATA (outbuf) =
- g_malloc (system_encode->sector->length_of_sector);
- GST_BUFFER_SIZE (outbuf) = system_encode->sector->length_of_sector;
- memcpy (GST_BUFFER_DATA (outbuf), system_encode->sector->buf,
- system_encode->sector->length_of_sector);
- system_encode->bytes_output += GST_BUFFER_SIZE (outbuf);
- gst_pad_push (system_encode->srcpad, GST_DATA (outbuf));
-
- GST_DEBUG ("system_encode::multiplex: writing %02x", mb->stream_id);
-
- }
- GST_INFO ("system_encode::multiplex: data left in video buffer %lu\n",
- MPEG1MUX_BUFFER_SPACE (system_encode->video_buffer));
- GST_INFO ("system_encode::multiplex: data left in audio buffer %lu\n",
- MPEG1MUX_BUFFER_SPACE (system_encode->audio_buffer));
-
- g_mutex_unlock (system_encode->lock);
-}
-
-static void
-gst_system_encode_chain (GstPad * pad, GstData * _data)
-{
- GstBuffer *buf = GST_BUFFER (_data);
- GstMPEG1SystemEncode *system_encode;
- guchar *data;
- gulong size;
- const gchar *padname;
- gint channel;
-
- g_return_if_fail (pad != NULL);
- g_return_if_fail (GST_IS_PAD (pad));
- g_return_if_fail (buf != NULL);
-
- system_encode = GST_SYSTEM_ENCODE (GST_OBJECT_PARENT (pad));
- data = GST_BUFFER_DATA (buf);
- size = GST_BUFFER_SIZE (buf);
-
- GST_DEBUG ("system_encode::chain: system_encode: have buffer of size %lu",
- size);
- padname = GST_OBJECT_NAME (pad);
-
- if (strncmp (padname, "audio_", 6) == 0) {
- channel = atoi (&padname[6]);
- GST_DEBUG
- ("gst_system_encode_chain: got audio buffer in from audio channel %02d",
- channel);
-
- mpeg1mux_buffer_queue (system_encode->audio_buffer, buf);
- } else if (strncmp (padname, "video_", 6) == 0) {
- channel = atoi (&padname[6]);
- GST_DEBUG
- ("gst_system_encode_chain: got video buffer in from video channel %02d",
- channel);
-
- mpeg1mux_buffer_queue (system_encode->video_buffer, buf);
-
- } else {
- g_assert_not_reached ();
- }
- gst_system_encode_multiplex (system_encode);
-
- gst_buffer_unref (buf);
-}
-
-static void
-gst_system_encode_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstMPEG1SystemEncode *system_encode;
-
- g_return_if_fail (GST_IS_SYSTEM_ENCODE (object));
- system_encode = GST_SYSTEM_ENCODE (object);
-
- switch (prop_id) {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_system_encode_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
-{
- GstMPEG1SystemEncode *src;
-
- g_return_if_fail (GST_IS_SYSTEM_ENCODE (object));
- src = GST_SYSTEM_ENCODE (object);
-
- switch (prop_id) {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
- /* this filter needs the getbits functions */
- if (!gst_library_load ("gstgetbits"))
- return FALSE;
-
- return gst_element_register (plugin, "mpeg1sysenc",
- GST_RANK_NONE, GST_TYPE_SYSTEM_ENCODE);
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- mpeg1sysenc,
- "MPEG-1 system stream encoder",
- plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
+++ /dev/null
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-
-#ifndef __SYSTEM_ENCODE_H__
-#define __SYSTEM_ENCODE_H__
-
-
-#include <gst/gst.h>
-#include <gst/getbits/getbits.h>
-
-#include "buffer.h"
-#include "main.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-
-#define GST_TYPE_SYSTEM_ENCODE \
- (gst_mpeg1_system_encode_get_type())
-#define GST_SYSTEM_ENCODE(obj) \
- (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SYSTEM_ENCODE,GstMPEG1SystemEncode))
-#define GST_SYSTEM_ENCODE_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SYSTEM_ENCODE,GstMPEG1SystemEncodeClass))
-#define GST_IS_SYSTEM_ENCODE(obj) \
- (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SYSTEM_ENCODE))
-#define GST_IS_SYSTEM_ENCODE_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SYSTEM_ENCODE))
-
-typedef struct _GstMPEG1SystemEncode GstMPEG1SystemEncode;
-typedef struct _GstMPEG1SystemEncodeClass GstMPEG1SystemEncodeClass;
-
-struct _GstMPEG1SystemEncode {
- GstElement element;
-
- GstPad *srcpad;
-
- gboolean have_setup;
-
- GMutex *lock;
-
- guint num_audio_pads;
- guint num_video_pads;
-
- Mpeg1MuxBuffer *audio_buffer;
- Mpeg1MuxBuffer *video_buffer;
-
- Pack_struc *pack;
- Sys_header_struc *sys_header;
- Sector_struc *sector;
-
- guint data_rate, video_rate, audio_rate;
- gdouble delay, audio_delay, video_delay;
- gdouble clock_cycles;
- gulong sectors_delay, video_delay_ms, audio_delay_ms;
- gulong startup_delay;
- gulong audio_buffer_size;
- gulong video_buffer_size;
- gulong mux_rate, dmux_rate;
- guint64 SCR;
- gint which_streams;
-
- gint current_pack;
- gulong min_packet_data;
- gulong max_packet_data;
- gint packets_per_pack;
- gulong packet_size;
- gulong bytes_output;
-
- GList *mta;
-
- /* stream input pads */
- GstPad *private_1_pad[8]; /* up to 8 ac3 audio tracks <grumble> */
- GstPad *private_2_pad;
- GstPad *video_pad[16];
- GstPad *audio_pad[32];
-};
-
-struct _GstMPEG1SystemEncodeClass {
- GstElementClass parent_class;
-};
-
-GType gst_mpeg1_system_encode_get_type(void);
-
-/* multplex.c */
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-
-#endif /* __SYSTEM_ENCODE_H__ */
+++ /dev/null
-/*************************************************************************
-* Generating a MPEG/SYSTEMS *
-* MULTIPLEXED VIDEO/AUDIO STREAM *
-* from two MPEG source streams *
-* Christoph Moar *
-* SIEMENS CORPORATE RESEARCH AND DEVELOPMENT ST SN 11 / T SN 6 *
-* (C) 1994 1995 *
-**************************************************************************
-* Restrictions apply. Will not support the whole MPEG/SYSTEM Standard. *
-* Basically, will generate Constrained System Parameter Files. *
-* Mixes only one audio and/or one video stream. Might be expanded. *
-*************************************************************************/
-
-/*************************************************************************
-* mplex - MPEG/SYSTEMS multiplexer *
-* Copyright (C) 1994 1995 Christoph Moar *
-* Siemens ZFE ST SN 11 / T SN 6 *
-* *
-* moar@informatik.tu-muenchen.de *
-* (Christoph Moar) *
-* *
-* 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 program 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., 51 Franklin Street, Fifth Floor, Boston, *
-* MA 02110-1301 USA. *
-*************************************************************************/
-
-
-#ifndef __MAIN_H__
-#define __MAIN_H__
-
-#include <glib.h>
-
-#define PACK_START 0x000001ba
-#define SYS_HEADER_START 0x000001bb
-#define ISO11172_END 0x000001b9
-#define PACKET_START 0x000001
-
-#define CLOCKS 90000.0 /* System Clock Hertz */
-
-#define AFTER_PACKET_LENGTH 15 /* No of non-data-bytes */
- /* following the packet */
- /* length field */
-#define LAST_SCR_BYTE_IN_PACK 9 /* No of bytes in pack */
- /* preceding, and */
- /* including, the SCR */
-
-/* The following values for sys_header_length & size are only valid for */
-/* System streams consisting of two basic streams. When wrapping around */
-/* the system layer on a single video or a single audio stream, those */
-/* values get decreased by 3. */
-
-#define SYS_HEADER_LENGTH 12 /* length of Sys Header */
- /* after start code and */
- /* length field */
-
-#define SYS_HEADER_SIZE 18 /* incl. start code and */
- /* length field */
-#define PACK_HEADER_SIZE 12
-
-#define PACKET_HEADER_SIZE 6
-
-#define MAX_SECTOR_SIZE 0x20000 /* Max Sektor Groesse */
-
-#define STREAMS_VIDEO 1
-#define STREAMS_AUDIO 2
-#define STREAMS_BOTH 3
-
-#define AUDIO_STREAMS 0xb8 /* Marker Audio Streams */
-#define VIDEO_STREAMS 0xb9 /* Marker Video Streams */
-#define AUDIO_STR_0 0xc0 /* Marker Audio Stream0 */
-#define VIDEO_STR_0 0xe0 /* Marker Video Stream0 */
-#define PADDING_STR 0xbe /* Marker Padding Stream*/
-
-#define ZERO_STUFFING_BYTE 0
-#define STUFFING_BYTE 0xff
-#define RESERVED_BYTE 0xff
-#define TIMESTAMPS_NO 0 /* Flag NO timestamps */
-#define TIMESTAMPS_PTS 1 /* Flag PTS timestamp */
-#define TIMESTAMPS_PTS_DTS 2 /* Flag BOTH timestamps */
-
-#define MARKER_SCR 2 /* Marker SCR */
-#define MARKER_JUST_PTS 2 /* Marker only PTS */
-#define MARKER_PTS 3 /* Marker PTS */
-#define MARKER_DTS 1 /* Marker DTS */
-#define MARKER_NO_TIMESTAMPS 0x0f /* Marker NO timestamps */
-
-#define STATUS_AUDIO_END 0 /* Statusmessage A end */
-#define STATUS_VIDEO_END 1 /* Statusmessage V end */
-#define STATUS_AUDIO_TIME_OUT 2 /* Statusmessage A out */
-#define STATUS_VIDEO_TIME_OUT 3 /* Statusmessage V out */
-
-/*************************************************************************
- Typ- und Strukturdefinitionen
-*************************************************************************/
-
-typedef struct sector_struc /* A sector, can contain pack, sys header */
- /* and packet. */
-{ unsigned char buf [MAX_SECTOR_SIZE] ;
- unsigned int length_of_sector ;
- unsigned int length_of_packet_data ;
- guint64 TS ;
-} Sector_struc;
-
-typedef struct pack_struc /* Pack Info */
-{ unsigned char buf [PACK_HEADER_SIZE];
- guint64 SCR;
-} Pack_struc;
-
-typedef struct sys_header_struc /* System Header Info */
-{ unsigned char buf [SYS_HEADER_SIZE];
-} Sys_header_struc;
-
-/*************************************************************************
- Funktionsprototypen, keine Argumente, K&R Style
-*************************************************************************/
-
-/* systems.c */
-void create_sector (Sector_struc *sector, Pack_struc *pack, Sys_header_struc *sys_header,
- unsigned int packet_size, unsigned char *inputbuffer, unsigned char type, unsigned char buffer_scale,
- unsigned int buffer_size, unsigned char buffers, guint64 PTS, guint64 DTS,
- unsigned char timestamps, unsigned int which_streams);
-
-void create_pack (Pack_struc *pack, guint64 SCR, unsigned int mux_rate);
-
-void create_sys_header (Sys_header_struc *sys_header, unsigned int rate_bound, unsigned char audio_bound,
- unsigned char fixed, unsigned char CSPS, unsigned char audio_lock, unsigned char video_lock,
- unsigned char video_bound, unsigned char stream1, unsigned char buffer1_scale, unsigned int buffer1_size,
- unsigned char stream2, unsigned char buffer2_scale, unsigned int buffer2_size, unsigned int which_streams);
-
-#endif
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
- ProjectType="Visual C++"
- Version="7.10"
- Name="mpeg1systemencode"
- ProjectGUID="{979C216F-0ACF-4956-AE00-055A42D678BA}"
- Keyword="Win32Proj">
- <Platforms>
- <Platform
- Name="Win32"/>
- </Platforms>
- <Configurations>
- <Configuration
- Name="Debug|Win32"
- OutputDirectory="../../win32/Debug"
- IntermediateDirectory="../../win32/Debug"
- ConfigurationType="2"
- CharacterSet="2">
- <Tool
- Name="VCCLCompilerTool"
- Optimization="0"
- AdditionalIncludeDirectories="../../../gstreamer/win32;../../../gstreamer;../../../gstreamer/libs;../../../glib;../../../glib/glib;../../../glib/gmodule;"../../gst-libs";../../../popt/include;../../../libxml2/include/libxml2"
- PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;mpeg1systemencode_EXPORTS;HAVE_CONFIG_H;_USE_MATH_DEFINES"
- MinimalRebuild="TRUE"
- BasicRuntimeChecks="3"
- RuntimeLibrary="3"
- UsePrecompiledHeader="0"
- WarningLevel="3"
- Detect64BitPortabilityProblems="TRUE"
- DebugInformationFormat="4"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLinkerTool"
- AdditionalDependencies="glib-2.0.lib gmodule-2.0.lib gthread-2.0.lib gobject-2.0.lib libgstreamer.lib gstbytestream.lib iconv.lib intl.lib"
- OutputFile="$(OutDir)/gstmpeg1systemencode.dll"
- LinkIncremental="2"
- AdditionalLibraryDirectories="../../../gstreamer/win32/Debug;../../../glib/glib;../../../glib/gmodule;../../../glib/gthread;../../../glib/gobject;../../../gettext/lib;../../../libiconv/lib"
- ModuleDefinitionFile=""
- GenerateDebugInformation="TRUE"
- ProgramDatabaseFile="$(OutDir)/mpeg1systemencode.pdb"
- SubSystem="2"
- OptimizeReferences="2"
- ImportLibrary="$(OutDir)/gstmpeg1systemencode.lib"
- TargetMachine="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"
- CommandLine="copy /Y $(TargetPath) c:\gstreamer\plugins"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="Release|Win32"
- OutputDirectory="../../win32/Release"
- IntermediateDirectory="../../win32/Release"
- ConfigurationType="2"
- CharacterSet="2">
- <Tool
- Name="VCCLCompilerTool"
- AdditionalIncludeDirectories="../../../gstreamer/win32;../../../gstreamer;../../../gstreamer/libs;../../../glib;../../../glib/glib;../../../glib/gmodule;"../../gst-libs";../../../popt/include;../../../libxml2/include/libxml2"
- PreprocessorDefinitions="WIN32;NDEBUG;GST_DISABLE_GST_DEBUG;_WINDOWS;_USRDLL;mpeg1systemencode_EXPORTS;HAVE_CONFIG_H;_USE_MATH_DEFINES"
- RuntimeLibrary="2"
- UsePrecompiledHeader="0"
- WarningLevel="3"
- Detect64BitPortabilityProblems="TRUE"
- DebugInformationFormat="3"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLinkerTool"
- AdditionalDependencies="glib-2.0.lib gmodule-2.0.lib gthread-2.0.lib gobject-2.0.lib libgstreamer.lib gstbytestream.lib iconv.lib intl.lib"
- OutputFile="$(OutDir)/gstmpeg1systemencode.dll"
- LinkIncremental="1"
- AdditionalLibraryDirectories="../../../gstreamer/win32/Release;../../../glib/glib;../../../glib/gmodule;../../../glib/gthread;../../../glib/gobject;../../../gettext/lib;../../../libiconv/lib"
- ModuleDefinitionFile=""
- GenerateDebugInformation="TRUE"
- SubSystem="2"
- OptimizeReferences="2"
- EnableCOMDATFolding="2"
- ImportLibrary="$(OutDir)/gstmpeg1systemencode.lib"
- TargetMachine="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"
- CommandLine="copy /Y $(TargetPath) c:\gstreamer\plugins"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- </Configurations>
- <References>
- </References>
- <Files>
- <Filter
- Name="Source Files"
- Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx"
- UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}">
- <File
- RelativePath=".\gstmpeg1systemencode.c">
- </File>
- <File
- RelativePath=".\buffer.c">
- </File>
- <File
- RelativePath=".\systems.c">
- </File>
- </Filter>
- <Filter
- Name="Header Files"
- Filter="h;hpp;hxx;hm;inl;inc;xsd"
- UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}">
- <File
- RelativePath=".\gstmpeg1systemencode.h">
- </File>
- <File
- RelativePath=".\main.h">
- </File>
- <File
- RelativePath=".\buffer.h">
- </File>
- </Filter>
- <Filter
- Name="Resource Files"
- Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx"
- UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}">
- </Filter>
- </Files>
- <Globals>
- </Globals>
-</VisualStudioProject>
+++ /dev/null
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <string.h>
-
-#include "main.h"
-
-static void
-buffer_timecode (timecode, marker, buffer)
- guint64 timecode;
- unsigned char marker;
- unsigned char **buffer;
-
-{
- unsigned char temp;
-
- temp = (marker << 4) | ((timecode >> 29) & 0x38) |
- ((timecode >> 29) & 0x6) | 1;
- *((*buffer)++) = temp;
- temp = (timecode & 0x3fc00000) >> 22;
- *((*buffer)++) = temp;
- temp = ((timecode & 0x003f8000) >> 14) | 1;
- *((*buffer)++) = temp;
- temp = (timecode & 0x7f80) >> 7;
- *((*buffer)++) = temp;
- temp = ((timecode & 0x007f) << 1) | 1;
- *((*buffer)++) = temp;
-}
-
-/*************************************************************************
- creates a complete sector.
- Also copies Pack and Sys_Header informations into the
- sector buffer, then reads a packet full of data from
- the input stream into the sector buffer.
-*************************************************************************/
-
-
-void
-create_sector (sector, pack, sys_header,
- packet_size, inputbuffer, type,
- buffer_scale, buffer_size, buffers, PTS, DTS, timestamps, which_streams)
-
- Sector_struc *sector;
- Pack_struc *pack;
- Sys_header_struc *sys_header;
- unsigned int packet_size;
- unsigned char *inputbuffer;
-
- unsigned char type;
- unsigned char buffer_scale;
- unsigned int buffer_size;
- unsigned char buffers;
- guint64 PTS;
- guint64 DTS;
- unsigned char timestamps;
- unsigned int which_streams;
-
-{
- int i, j, tmp;
- unsigned char *index;
- unsigned char *size_offset;
-
- /* printf("creating sector\n"); */
-
- index = sector->buf;
- sector->length_of_sector = 0;
-
-/* Should we copy Pack Header information ? */
-
- if (pack != NULL) {
- i = sizeof (pack->buf);
- memcpy (index, pack->buf, i);
- index += i;
- sector->length_of_sector += i;
- }
-
-/* Should we copy System Header information ? */
-
- if (sys_header != NULL) {
- i = sizeof (sys_header->buf);
-
- /* only one stream? 3 bytes less in sys header */
- if (which_streams != STREAMS_BOTH)
- i -= 3;
-
- memcpy (index, sys_header->buf, i);
- index += i;
- sector->length_of_sector += i;
- }
-
- /* write constant packet header data */
-
- *(index++) = (unsigned char) (PACKET_START) >> 16;
- *(index++) = (unsigned char) (PACKET_START & 0x00ffff) >> 8;
- *(index++) = (unsigned char) (PACKET_START & 0x0000ff);
- *(index++) = type;
-
- /* we remember this offset in case we will have to shrink this packet */
-
- size_offset = index;
- *(index++) = (unsigned char) ((packet_size - PACKET_HEADER_SIZE) >> 8);
- *(index++) = (unsigned char) ((packet_size - PACKET_HEADER_SIZE) & 0xff);
-
- *(index++) = STUFFING_BYTE;
- *(index++) = STUFFING_BYTE;
- *(index++) = STUFFING_BYTE;
-
- i = 0;
-
- if (!buffers)
- i += 2;
- if (timestamps == TIMESTAMPS_NO)
- i += 9;
- else if (timestamps == TIMESTAMPS_PTS)
- i += 5;
-
- /* printf("%i stuffing %d\n", i, timestamps); */
-
- for (j = 0; j < i; j++)
- *(index++) = STUFFING_BYTE;
-
- /* should we write buffer info ? */
-
- if (buffers) {
- *(index++) = (unsigned char) (0x40 |
- (buffer_scale << 5) | (buffer_size >> 8));
- *(index++) = (unsigned char) (buffer_size & 0xff);
- }
-
- /* should we write PTS, PTS & DTS or nothing at all ? */
-
- switch (timestamps) {
- case TIMESTAMPS_NO:
- *(index++) = MARKER_NO_TIMESTAMPS;
- break;
- case TIMESTAMPS_PTS:
- buffer_timecode (PTS, MARKER_JUST_PTS, &index);
- sector->TS = PTS;
- break;
- case TIMESTAMPS_PTS_DTS:
- buffer_timecode (PTS, MARKER_PTS, &index);
- buffer_timecode (DTS, MARKER_DTS, &index);
- sector->TS = DTS;
- break;
- }
-
-/* read in packet data */
-
- i = (packet_size - PACKET_HEADER_SIZE - AFTER_PACKET_LENGTH);
-
- if (type == PADDING_STR) {
- for (j = 0; j < i; j++)
- *(index++) = (unsigned char) STUFFING_BYTE;
- tmp = i;
- } else {
- /*tmp = fread (index, sizeof (unsigned char), i, inputstream); */
- memcpy (index, inputbuffer, i);
- tmp = i;
- index += tmp;
-
- /* if we did not get enough data bytes, shorten the Packet length */
-
- if (tmp != i) {
- packet_size -= (i - tmp);
- *(size_offset++) =
- (unsigned char) ((packet_size - PACKET_HEADER_SIZE) >> 8);
- *(size_offset++) =
- (unsigned char) ((packet_size - PACKET_HEADER_SIZE) & 0xff);
-
-/* zero byte stuffing in the last Packet of a stream */
-/* we don't need this any more, since we shortenend the packet */
-/* for (j=tmp; j<i; j++) */
-/* *(index++)=(unsigned char) ZERO_STUFFING_BYTE; */
- }
- }
-
-
- /* write other struct data */
-
- sector->length_of_sector += packet_size;
- sector->length_of_packet_data = tmp;
-
-}
-
-/*************************************************************************
- writes specifical pack header information into a buffer
- later this will be copied from the sector routine into
- the sector buffer
-*************************************************************************/
-
-void
-create_pack (pack, SCR, mux_rate)
-
- Pack_struc *pack;
- unsigned int mux_rate;
- guint64 SCR;
-
-{
- unsigned char *index;
-
- index = pack->buf;
-
- *(index++) = (unsigned char) ((PACK_START) >> 24);
- *(index++) = (unsigned char) ((PACK_START & 0x00ff0000) >> 16);
- *(index++) = (unsigned char) ((PACK_START & 0x0000ff00) >> 8);
- *(index++) = (unsigned char) (PACK_START & 0x000000ff);
- buffer_timecode (SCR, MARKER_SCR, &index);
- *(index++) = (unsigned char) (0x80 | (mux_rate >> 15));
- *(index++) = (unsigned char) (0xff & (mux_rate >> 7));
- *(index++) = (unsigned char) (0x01 | ((mux_rate & 0x7f) << 1));
- pack->SCR = SCR;
-}
-
-
-/*************************************************************************
- writes specifical system header information into a buffer
- later this will be copied from the sector routine into
- the sector buffer
-*************************************************************************/
-
-void
-create_sys_header (sys_header, rate_bound, audio_bound,
- fixed, CSPS, audio_lock, video_lock,
- video_bound,
- stream1, buffer1_scale, buffer1_size,
- stream2, buffer2_scale, buffer2_size, which_streams)
-
- Sys_header_struc *sys_header;
- unsigned int rate_bound;
- unsigned char audio_bound;
- unsigned char fixed;
- unsigned char CSPS;
- unsigned char audio_lock;
- unsigned char video_lock;
- unsigned char video_bound;
-
- unsigned char stream1;
- unsigned char buffer1_scale;
- unsigned int buffer1_size;
- unsigned char stream2;
- unsigned char buffer2_scale;
- unsigned int buffer2_size;
- unsigned int which_streams;
-
-{
- unsigned char *index;
-
- index = sys_header->buf;
-
- /* if we are not using both streams, we should clear some
- options here */
-
- if (!(which_streams & STREAMS_AUDIO))
- audio_bound = 0;
- if (!(which_streams & STREAMS_VIDEO))
- video_bound = 0;
-
- *(index++) = (unsigned char) ((SYS_HEADER_START) >> 24);
- *(index++) = (unsigned char) ((SYS_HEADER_START & 0x00ff0000) >> 16);
- *(index++) = (unsigned char) ((SYS_HEADER_START & 0x0000ff00) >> 8);
- *(index++) = (unsigned char) (SYS_HEADER_START & 0x000000ff);
-
- if (which_streams == STREAMS_BOTH) {
- *(index++) = (unsigned char) (SYS_HEADER_LENGTH >> 8);
- *(index++) = (unsigned char) (SYS_HEADER_LENGTH & 0xff);
- } else {
- *(index++) = (unsigned char) ((SYS_HEADER_LENGTH - 3) >> 8);
- *(index++) = (unsigned char) ((SYS_HEADER_LENGTH - 3) & 0xff);
- }
-
- *(index++) = (unsigned char) (0x80 | (rate_bound >> 15));
- *(index++) = (unsigned char) (0xff & (rate_bound >> 7));
- *(index++) = (unsigned char) (0x01 | ((rate_bound & 0x7f) << 1));
- *(index++) = (unsigned char) ((audio_bound << 2) | (fixed << 1) | CSPS);
- *(index++) = (unsigned char) ((audio_lock << 7) |
- (video_lock << 6) | 0x20 | video_bound);
-
- *(index++) = (unsigned char) RESERVED_BYTE;
-
- if (which_streams & STREAMS_AUDIO) {
- *(index++) = stream1;
- *(index++) = (unsigned char) (0xc0 |
- (buffer1_scale << 5) | (buffer1_size >> 8));
- *(index++) = (unsigned char) (buffer1_size & 0xff);
- }
-
- if (which_streams & STREAMS_VIDEO) {
- *(index++) = stream2;
- *(index++) = (unsigned char) (0xc0 |
- (buffer2_scale << 5) | (buffer2_size >> 8));
- *(index++) = (unsigned char) (buffer2_size & 0xff);
- }
-
-}
projects / platform / upstream / gstreamer.git / commitdiff