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-rw-r--r--gst/mpeg1sys/buffer.c407
-rw-r--r--gst/mpeg1sys/buffer.h194
-rw-r--r--gst/mpeg1sys/gstmpeg1systemencode.c474
-rw-r--r--gst/mpeg1sys/gstmpeg1systemencode.h93
-rw-r--r--gst/mpeg1sys/main.h111
-rw-r--r--gst/mpeg1sys/systems.c421
6 files changed, 892 insertions, 808 deletions
diff --git a/gst/mpeg1sys/buffer.c b/gst/mpeg1sys/buffer.c
index 0d029529..ceb67d07 100644
--- a/gst/mpeg1sys/buffer.c
+++ b/gst/mpeg1sys/buffer.c
@@ -36,7 +36,7 @@
#define AUDIO_SYNCWORD 0xfff
-#define CLOCKS 90000.0
+#define CLOCKS 90000.0
#ifdef G_HAVE_ISO_VARARGS
@@ -49,26 +49,26 @@
#endif
/* This must match decoder and encoder tables */
-static 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
+static 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,
@@ -76,26 +76,25 @@ static double ratio [16] = { 0., 1., 0.6735, 0.7031, 0.7615, 0.8055,
*/
#ifndef GST_DISABLE_GST_DEBUG
-static char picture_types [4][3] =
- { "I", "P", "B", "D" };
+static char picture_types[4][3] = { "I", "P", "B", "D" };
#endif
static 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, } },
+ { {{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 long frequency[9] =
-{44100, 48000, 32000, 22050, 24000, 16000, 11025, 12000, 8000};
+ { 44100, 48000, 32000, 22050, 24000, 16000, 11025, 12000, 8000 };
+
+static double dfrequency[9] = { 44.1, 48, 32, 22.05, 24, 16, 11.025, 12, 8 };
-static double dfrequency[9] =
-{44.1, 48, 32, 22.05, 24, 16, 11.025, 12, 8};
+static unsigned int samples[4] = { 192, 384, 1152, 1152 };
-static unsigned int samples [4] = {192, 384, 1152, 1152};
/* deined but not used
static char mode [4][15] =
{ "stereo", "joint stereo", "dual channel", "single channel" };
@@ -106,11 +105,13 @@ static char original [2][10] =
static 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);
+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));
+Mpeg1MuxBuffer *
+mpeg1mux_buffer_new (guchar type, guchar id)
+{
+ Mpeg1MuxBuffer *new = g_malloc (sizeof (Mpeg1MuxBuffer));
new->buffer = NULL;
new->length = 0;
@@ -127,47 +128,50 @@ Mpeg1MuxBuffer *mpeg1mux_buffer_new(guchar type, guchar id) {
return new;
}
-void mpeg1mux_buffer_queue(Mpeg1MuxBuffer *mb, GstBuffer *buf) {
+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);
+ 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);
+ mpeg1mux_buffer_update_video_info (mb);
+ } else {
+ mpeg1mux_buffer_update_audio_info (mb);
}
}
-gulong mpeg1mux_buffer_update_queued(Mpeg1MuxBuffer *mb, guint64 scr) {
+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);
+ 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);
+ 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);
+ queued_list = g_list_next (queued_list);
}
}
GST_DEBUG ("queued in buffer %lu", total_queued);
@@ -175,7 +179,9 @@ gulong mpeg1mux_buffer_update_queued(Mpeg1MuxBuffer *mb, guint64 scr) {
return total_queued;
}
-void mpeg1mux_buffer_shrink(Mpeg1MuxBuffer *mb, gulong size) {
+void
+mpeg1mux_buffer_shrink (Mpeg1MuxBuffer * mb, gulong size)
+{
GList *timecode_list;
Mpeg1MuxTimecode *tc;
gulong consumed = 0;
@@ -183,35 +189,37 @@ void mpeg1mux_buffer_shrink(Mpeg1MuxBuffer *mb, gulong size) {
GST_DEBUG ("shrinking buffer %lu", size);
- g_assert(mb->length >= size);
+ g_assert (mb->length >= size);
- memcpy(mb->buffer, mb->buffer+size, mb->length-size);
- mb->buffer = g_realloc(mb->buffer, 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);
+ 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 {
+ } 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);
+ 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);
+ 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);
+ GST_DEBUG ("leftover frame size from %lu to %lu ", tc->length,
+ consumed - size);
tc->length = consumed - size;
}
@@ -219,128 +227,143 @@ void mpeg1mux_buffer_shrink(Mpeg1MuxBuffer *mb, gulong size) {
mb->info.video.DTS = tc->DTS;
mb->info.video.PTS = tc->PTS;
mb->next_frame_time = tc->DTS;
- }
- else {
+ } 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);
+ 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);
+ 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);
+
+ timecode_list = g_list_next (timecode_list);
}
- if (count != mb->current_start) g_print("********** error %lu != %lu\n", count, mb->current_start);
+ 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) {
+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;
+ 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");
+ 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");
+ 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) {
+ while (offset < mb->length - 6) {
if (!have_sync) {
- guchar byte = *(data+offset);
+ 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); */
+ 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;
+ 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
+ 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;
+ 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");
+ 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;
+ 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;
+ 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);
+ 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;
+ mb->current_start = offset - 3;
}
- temp= (*(data+offset+1)<<8)+*(data+offset+2);
+ 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;
+ 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++;
@@ -349,7 +372,7 @@ static void mpeg1mux_buffer_update_video_info(Mpeg1MuxBuffer *mb) {
offset++;
break;
case SEQUENCE_END:
- GST_DEBUG ("mpeg1mux::update_video_info: sequence end");
+ GST_DEBUG ("mpeg1mux::update_video_info: sequence end");
break;
}
/* prepare for next sync */
@@ -362,105 +385,115 @@ static void mpeg1mux_buffer_update_video_info(Mpeg1MuxBuffer *mb) {
mb->scan_pos = offset;
}
-static void mpeg1mux_buffer_update_audio_info(Mpeg1MuxBuffer *mb) {
+static void
+mpeg1mux_buffer_update_audio_info (Mpeg1MuxBuffer * mb)
+{
guchar *data = mb->buffer;
gulong offset = mb->scan_pos;
- guint32 id=0;
+ guint32 id = 0;
guint padding_bit;
gst_getbits_t gb;
guint startup_delay = 0;
- int layer_index,lsf,samplerate_index,padding;
+ 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 = GUINT32_FROM_BE(*((guint32 *)(data)));
+ id = GUINT32_FROM_BE (*((guint32 *) (data)));
- printf("MPEG audio id = %08x\n", (unsigned int)id);
- if ((id & 0xfff00000) == AUDIO_SYNCWORD<<20) {
+ 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)];
+ 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);
+ 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;
+ 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_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_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, 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_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);
+ 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];
+ 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);
+ GST_DEBUG ("mpeg1mux::update_audio_info: samples per second %g",
+ mb->info.audio.samples_per_second);
- mb->info.audio.decoding_order=0;
+ mb->info.audio.decoding_order = 0;
- tc = (Mpeg1MuxTimecode *) g_malloc(sizeof(Mpeg1MuxTimecode));
+ 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;
+ 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);
+ 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->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");
+ } else {
+ g_print ("mpeg1mux::update_audio_info: Invalid MPEG Video header\n");
}
}
- while (offset < mb->length-4) {
- id = GUINT32_FROM_BE(*((guint32 *)(data+offset)));
+ while (offset < mb->length - 4) {
+ id = GUINT32_FROM_BE (*((guint32 *) (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)];
+ 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;
@@ -473,21 +506,25 @@ static void mpeg1mux_buffer_update_audio_info(Mpeg1MuxBuffer *mb) {
bpf /= frequency[samplerate_index];
bpf += padding;
}
- tc = (Mpeg1MuxTimecode *) g_malloc(sizeof(Mpeg1MuxTimecode));
+ 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.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. ;
+ 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);
+ 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;
diff --git a/gst/mpeg1sys/buffer.h b/gst/mpeg1sys/buffer.h
index 0624c3aa..2a9fb71f 100644
--- a/gst/mpeg1sys/buffer.h
+++ b/gst/mpeg1sys/buffer.h
@@ -24,8 +24,9 @@
#include <gst/gst.h>
#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
+extern "C"
+{
+#endif /* __cplusplus */
#define MPEG1MUX_BUFFER_QUEUED(mb) (g_list_length((mb)->timecode_list))
#define MPEG1MUX_BUFFER_SPACE(mb) ((mb)->length)
@@ -41,101 +42,104 @@ extern "C" {
#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);
+ 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 /* __cplusplus */
-#endif /* __BUFFER_H__ */
+#endif /* __BUFFER_H__ */
diff --git a/gst/mpeg1sys/gstmpeg1systemencode.c b/gst/mpeg1sys/gstmpeg1systemencode.c
index e3d38d9a..a071f0c4 100644
--- a/gst/mpeg1sys/gstmpeg1systemencode.c
+++ b/gst/mpeg1sys/gstmpeg1systemencode.c
@@ -39,59 +39,54 @@ static GstElementDetails system_encode_details = {
};
/* GstMPEG1SystemEncode signals and args */
-enum {
+enum
+{
/* FILL ME */
LAST_SIGNAL
};
-enum {
+enum
+{
ARG_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 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_%d",
- GST_PAD_SINK,
- GST_PAD_REQUEST,
- GST_STATIC_CAPS ("video/mpeg, "
- "mpegversion = (int) 1, "
- "systemstream = (boolean) FALSE")
-);
+GST_STATIC_PAD_TEMPLATE ("video_%d",
+ 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_%d",
- 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);
+GST_STATIC_PAD_TEMPLATE ("audio_%d",
+ 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
@@ -101,46 +96,48 @@ gst_mpeg1_system_encode_get_type (void)
if (!system_encode_type) {
static const GTypeInfo system_encode_info = {
- sizeof(GstMPEG1SystemEncodeClass),
- (GBaseInitFunc)gst_system_encode_base_init,
+ sizeof (GstMPEG1SystemEncodeClass),
+ (GBaseInitFunc) gst_system_encode_base_init,
NULL,
- (GClassInitFunc)gst_system_encode_class_init,
+ (GClassInitFunc) gst_system_encode_class_init,
NULL,
NULL,
- sizeof(GstMPEG1SystemEncode),
+ sizeof (GstMPEG1SystemEncode),
0,
- (GInstanceInitFunc)gst_system_encode_init,
+ (GInstanceInitFunc) gst_system_encode_init,
NULL
};
- system_encode_type = g_type_register_static(GST_TYPE_ELEMENT, "GstMPEG1SystemEncode", &system_encode_info, 0);
+ 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)
+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_static_pad_template_get (&src_factory));
gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&audio_sink_factory));
+ 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_static_pad_template_get (&video_sink_factory));
gst_element_class_set_details (element_class, &system_encode_details);
}
static void
-gst_system_encode_class_init (GstMPEG1SystemEncodeClass *klass)
+gst_system_encode_class_init (GstMPEG1SystemEncodeClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
- gobject_class = (GObjectClass*)klass;
- gstelement_class = (GstElementClass*)klass;
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
- parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+ parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gobject_class->set_property = gst_system_encode_set_property;
gobject_class->get_property = gst_system_encode_get_property;
@@ -149,10 +146,11 @@ gst_system_encode_class_init (GstMPEG1SystemEncodeClass *klass)
}
static void
-gst_system_encode_init (GstMPEG1SystemEncode *system_encode)
+gst_system_encode_init (GstMPEG1SystemEncode * system_encode)
{
- system_encode->srcpad = gst_pad_new_from_template (
- gst_static_pad_template_get (&src_factory), "src");
+ system_encode->srcpad =
+ gst_pad_new_from_template (gst_static_pad_template_get (&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);
@@ -160,7 +158,7 @@ gst_system_encode_init (GstMPEG1SystemEncode *system_encode)
system_encode->have_setup = FALSE;
system_encode->mta = NULL;
system_encode->packet_size = 2048;
- system_encode->lock = g_mutex_new();
+ 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;
@@ -175,8 +173,9 @@ gst_system_encode_init (GstMPEG1SystemEncode *system_encode)
}
-static GstPad*
-gst_system_encode_request_new_pad (GstElement *element, GstPadTemplate *templ, const gchar *unused)
+static GstPad *
+gst_system_encode_request_new_pad (GstElement * element, GstPadTemplate * templ,
+ const gchar * unused)
{
GstMPEG1SystemEncode *system_encode;
gchar *name = NULL;
@@ -194,23 +193,23 @@ gst_system_encode_request_new_pad (GstElement *element, GstPadTemplate *templ, c
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));
+ 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)) {
+ } 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));
+ 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 {
+ } else {
g_warning ("system_encode: this is not our template!\n");
return NULL;
}
@@ -222,59 +221,67 @@ gst_system_encode_request_new_pad (GstElement *element, GstPadTemplate *templ, c
}
/* return a list of all the highest prioripty streams */
-static GList*
-gst_system_encode_pick_streams (GList *mta, GstMPEG1SystemEncode *system_encode)
+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);
+ 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) {
+ 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) {
+ 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);
+ 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);
+ mta = g_list_append (mta, system_encode->audio_buffer);
}
}
return mta;
}
static gboolean
-gst_system_encode_have_data (GstMPEG1SystemEncode *system_encode)
+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) {
+ 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) {
+ 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) {
+ if (MPEG1MUX_BUFFER_QUEUED (system_encode->audio_buffer) > 2 &&
+ MPEG1MUX_BUFFER_SPACE (system_encode->audio_buffer) >
+ system_encode->packet_size * 2) {
return TRUE;
}
}
@@ -282,67 +289,85 @@ gst_system_encode_have_data (GstMPEG1SystemEncode *system_encode)
return FALSE;
}
-static GList*
-gst_system_encode_update_mta (GstMPEG1SystemEncode *system_encode, GList *mta, gulong size)
+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;
+ GList *streams = g_list_first (mta);
+ Mpeg1MuxBuffer *mb = (Mpeg1MuxBuffer *) streams->data;
GST_DEBUG ("system_encode::multiplex: update mta");
- mpeg1mux_buffer_shrink(mb, size);
+ mpeg1mux_buffer_shrink (mb, size);
- mta = g_list_remove(mta, mb);
+ mta = g_list_remove (mta, mb);
return mta;
}
static void
-gst_system_setup_multiplex (GstMPEG1SystemEncode *system_encode)
+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->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;
+ 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;
+ 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_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;
@@ -351,134 +376,142 @@ gst_system_setup_multiplex (GstMPEG1SystemEncode *system_encode)
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);
+ 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)
+gst_system_encode_multiplex (GstMPEG1SystemEncode * system_encode)
{
GList *streams;
- Mpeg1MuxBuffer *mb = (Mpeg1MuxBuffer *)streams->data;
+ Mpeg1MuxBuffer *mb = (Mpeg1MuxBuffer *) streams->data;
guchar timestamps;
guchar buffer_scale;
GstBuffer *outbuf;
- Pack_struc *pack;
- Sys_header_struc *sys_header;
+ 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);
+ g_mutex_lock (system_encode->lock);
- while (gst_system_encode_have_data(system_encode)) {
+ 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);
+ 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);
+ system_encode->mta =
+ gst_system_encode_pick_streams (system_encode->mta, system_encode);
}
- if (system_encode->mta == NULL) break;
+ if (system_encode->mta == NULL)
+ break;
- system_encode->SCR = (guint64)(system_encode->bytes_output+LAST_SCR_BYTE_IN_PACK)*CLOCKS/system_encode->dmux_rate;
+ 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;
+ 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 );
+ 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 {
+ } else {
system_encode->current_pack++;
pack = NULL;
sys_header = NULL;
}
- tc = MPEG1MUX_BUFFER_FIRST_TIMECODE(mb);
+ 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;
+ 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 {
+ } else {
timestamps = TIMESTAMPS_NO;
}
if (tc->frame_type != FRAME_TYPE_AUDIO) {
- if (tc->PTS<system_encode->startup_delay)
+ 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;
+ 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 {
+ } else {
buffer_scale = 1;
non_scaled_buffer_size = system_encode->video_buffer_size;
- buffer_size = system_encode->video_buffer_size/1024;
+ 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);
+ 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 {
+ 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);
+ 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));
+ 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));
+ 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);
+ g_mutex_unlock (system_encode->lock);
}
static void
-gst_system_encode_chain (GstPad *pad, GstData *_data)
+gst_system_encode_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstMPEG1SystemEncode *system_encode;
@@ -487,46 +520,50 @@ gst_system_encode_chain (GstPad *pad, GstData *_data)
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);
+ 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);
+ data = GST_BUFFER_DATA (buf);
+ size = GST_BUFFER_SIZE (buf);
- GST_DEBUG ("system_encode::chain: system_encode: have buffer of size %lu",size);
+ 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);
+ 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->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);
+ mpeg1mux_buffer_queue (system_encode->video_buffer, buf);
+ } else {
+ g_assert_not_reached ();
}
- else {
- g_assert_not_reached ();
- }
- gst_system_encode_multiplex(system_encode);
+ gst_system_encode_multiplex (system_encode);
- gst_buffer_unref(buf);
+ gst_buffer_unref (buf);
}
static void
-gst_system_encode_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+gst_system_encode_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
{
GstMPEG1SystemEncode *system_encode;
/* it's not null if we got it, but it might not be ours */
- g_return_if_fail(GST_IS_SYSTEM_ENCODE(object));
- system_encode = GST_SYSTEM_ENCODE(object);
+ g_return_if_fail (GST_IS_SYSTEM_ENCODE (object));
+ system_encode = GST_SYSTEM_ENCODE (object);
switch (prop_id) {
default:
@@ -536,13 +573,14 @@ gst_system_encode_set_property (GObject *object, guint prop_id, const GValue *va
}
static void
-gst_system_encode_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+gst_system_encode_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
{
GstMPEG1SystemEncode *src;
/* it's not null if we got it, but it might not be ours */
- g_return_if_fail(GST_IS_SYSTEM_ENCODE(object));
- src = GST_SYSTEM_ENCODE(object);
+ g_return_if_fail (GST_IS_SYSTEM_ENCODE (object));
+ src = GST_SYSTEM_ENCODE (object);
switch (prop_id) {
default:
@@ -552,24 +590,18 @@ gst_system_encode_get_property (GObject *object, guint prop_id, GValue *value, G
}
static gboolean
-plugin_init (GstPlugin *plugin)
+plugin_init (GstPlugin * plugin)
{
/* this filter needs the getbits functions */
if (!gst_library_load ("gstgetbits"))
return FALSE;
return gst_element_register (plugin, "system_encode",
- GST_RANK_NONE, GST_TYPE_SYSTEM_ENCODE);
+ GST_RANK_NONE, GST_TYPE_SYSTEM_ENCODE);
}
-GST_PLUGIN_DEFINE (
- GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- "system_encode",
- "MPEG-1 system stream encoder",
- plugin_init,
- VERSION,
- "GPL",
- GST_PACKAGE,
- GST_ORIGIN
-)
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "system_encode",
+ "MPEG-1 system stream encoder",
+ plugin_init, VERSION, "GPL", GST_PACKAGE, GST_ORIGIN)
diff --git a/gst/mpeg1sys/gstmpeg1systemencode.h b/gst/mpeg1sys/gstmpeg1systemencode.h
index 44555332..0580cedc 100644
--- a/gst/mpeg1sys/gstmpeg1systemencode.h
+++ b/gst/mpeg1sys/gstmpeg1systemencode.h
@@ -29,8 +29,9 @@
#include "main.h"
#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
+extern "C"
+{
+#endif /* __cplusplus */
#define GST_TYPE_SYSTEM_ENCODE \
@@ -44,66 +45,68 @@ extern "C" {
#define GST_IS_SYSTEM_ENCODE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SYSTEM_ENCODE))
-typedef struct _GstMPEG1SystemEncode GstMPEG1SystemEncode;
-typedef struct _GstMPEG1SystemEncodeClass GstMPEG1SystemEncodeClass;
+ typedef struct _GstMPEG1SystemEncode GstMPEG1SystemEncode;
+ typedef struct _GstMPEG1SystemEncodeClass GstMPEG1SystemEncodeClass;
-struct _GstMPEG1SystemEncode {
- GstElement element;
+ struct _GstMPEG1SystemEncode
+ {
+ GstElement element;
- GstPad *srcpad;
+ GstPad *srcpad;
- gboolean have_setup;
+ gboolean have_setup;
- GMutex *lock;
+ GMutex *lock;
- guint num_audio_pads;
- guint num_video_pads;
+ guint num_audio_pads;
+ guint num_video_pads;
- Mpeg1MuxBuffer *audio_buffer;
- Mpeg1MuxBuffer *video_buffer;
+ Mpeg1MuxBuffer *audio_buffer;
+ Mpeg1MuxBuffer *video_buffer;
- Pack_struc *pack;
- Sys_header_struc *sys_header;
- Sector_struc *sector;
+ 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;
+ 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;
+ gint current_pack;
+ gulong min_packet_data;
+ gulong max_packet_data;
+ gint packets_per_pack;
+ gulong packet_size;
+ gulong bytes_output;
- GList *mta;
+ 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];
-};
+ /* 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;
-};
+ struct _GstMPEG1SystemEncodeClass
+ {
+ GstElementClass parent_class;
+ };
-GType gst_mpeg1_system_encode_get_type(void);
+ GType gst_mpeg1_system_encode_get_type (void);
/* multplex.c */
#ifdef __cplusplus
}
-#endif /* __cplusplus */
+#endif /* __cplusplus */
-#endif /* __SYSTEM_ENCODE_H__ */
+#endif /* __SYSTEM_ENCODE_H__ */
diff --git a/gst/mpeg1sys/main.h b/gst/mpeg1sys/main.h
index 434f57f5..c09fc41b 100644
--- a/gst/mpeg1sys/main.h
+++ b/gst/mpeg1sys/main.h
@@ -45,79 +45,82 @@
#define ISO11172_END 0x000001b9
#define PACKET_START 0x000001
-#define CLOCKS 90000.0 /* System Clock Hertz */
+#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 */
+#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_LENGTH 12 /* length of Sys Header */
+ /* after start code and */
+ /* length field */
-#define SYS_HEADER_SIZE 18 /* incl. 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 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 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 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 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 */
+#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 ;
+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;
+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];
+typedef struct sys_header_struc /* System Header Info */
+{
+ unsigned char buf[SYS_HEADER_SIZE];
} Sys_header_struc;
/*************************************************************************
@@ -125,16 +128,20 @@ typedef struct sys_header_struc /* System Header Info */
*************************************************************************/
/* 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);
+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
diff --git a/gst/mpeg1sys/systems.c b/gst/mpeg1sys/systems.c
index aa6de41a..20e7bd90 100644
--- a/gst/mpeg1sys/systems.c
+++ b/gst/mpeg1sys/systems.c
@@ -6,25 +6,26 @@
#include "main.h"
-static void buffer_timecode (timecode, marker, buffer)
-guint64 timecode;
-unsigned char marker;
-unsigned char **buffer;
+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 = (marker << 4) | ((timecode >> 29) & 0x38) |
+ ((timecode >> 29) & 0x6) | 1;
+ *((*buffer)++) = temp;
temp = (timecode & 0x3fc00000) >> 22;
- *((*buffer)++)=temp;
+ *((*buffer)++) = temp;
temp = ((timecode & 0x003f8000) >> 14) | 1;
- *((*buffer)++)=temp;
+ *((*buffer)++) = temp;
temp = (timecode & 0x7f80) >> 7;
- *((*buffer)++)=temp;
+ *((*buffer)++) = temp;
temp = ((timecode & 0x007f) << 1) | 1;
- *((*buffer)++)=temp;
+ *((*buffer)++) = temp;
}
/*************************************************************************
@@ -35,152 +36,151 @@ unsigned char **buffer;
*************************************************************************/
-void create_sector (sector, pack, sys_header,
- packet_size, inputbuffer, type,
- buffer_scale, buffer_size, buffers,
- PTS, DTS, timestamps, which_streams )
+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;
+ 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;
+ 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;
+ int i, j, tmp;
+ unsigned char *index;
+ unsigned char *size_offset;
- /* printf("creating sector\n"); */
+ /* printf("creating sector\n"); */
- index = sector->buf;
- sector->length_of_sector=0;
+ index = sector->buf;
+ sector->length_of_sector = 0;
/* Should we copy Pack Header information ? */
- if (pack != NULL)
- {
- i = sizeof(pack->buf);
- bcopy (pack->buf, index, i);
- index += i;
- sector->length_of_sector += i;
- }
+ if (pack != NULL) {
+ i = sizeof (pack->buf);
+ bcopy (pack->buf, index, i);
+ index += i;
+ sector->length_of_sector += i;
+ }
/* Should we copy System Header information ? */
- if (sys_header != NULL)
- {
- i = sizeof(sys_header->buf);
+ 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;
+ /* only one stream? 3 bytes less in sys header */
+ if (which_streams != STREAMS_BOTH)
+ i -= 3;
- bcopy (sys_header->buf, index, i);
- index += i;
- sector->length_of_sector += i;
- }
+ bcopy (sys_header->buf, index, i);
+ index += i;
+ sector->length_of_sector += i;
+ }
- /* write constant packet header data */
+ /* 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;
+ *(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);
+ /* we remember this offset in case we will have to shrink this packet */
- *(index++) = STUFFING_BYTE;
- *(index++) = STUFFING_BYTE;
- *(index++) = STUFFING_BYTE;
+ size_offset = index;
+ *(index++) = (unsigned char) ((packet_size - PACKET_HEADER_SIZE) >> 8);
+ *(index++) = (unsigned char) ((packet_size - PACKET_HEADER_SIZE) & 0xff);
- i = 0;
+ *(index++) = STUFFING_BYTE;
+ *(index++) = STUFFING_BYTE;
+ *(index++) = STUFFING_BYTE;
- if (!buffers) i +=2;
- if (timestamps == TIMESTAMPS_NO) i+=9;
- else if (timestamps == TIMESTAMPS_PTS) i+=5;
+ i = 0;
- /* printf("%i stuffing %d\n", i, timestamps); */
-
- for (j=0; j<i; j++)
- *(index++) = STUFFING_BYTE;
+ if (!buffers)
+ i += 2;
+ if (timestamps == TIMESTAMPS_NO)
+ i += 9;
+ else if (timestamps == TIMESTAMPS_PTS)
+ i += 5;
- /* should we write buffer info ? */
+ /* printf("%i stuffing %d\n", i, timestamps); */
- if (buffers)
- {
- *(index++) = (unsigned char) (0x40 |
- (buffer_scale << 5) | (buffer_size >> 8));
- *(index++) = (unsigned char) (buffer_size & 0xff);
- }
+ for (j = 0; j < i; j++)
+ *(index++) = STUFFING_BYTE;
- /* 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;
- }
+ /* 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);
-
+
+ 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 */
+ /* write other struct data */
+
+ sector->length_of_sector += packet_size;
+ sector->length_of_packet_data = tmp;
- sector->length_of_sector += packet_size;
- sector->length_of_packet_data = tmp;
-
}
/*************************************************************************
@@ -189,26 +189,27 @@ unsigned int which_streams;
the sector buffer
*************************************************************************/
-void create_pack (pack, SCR, mux_rate)
+void
+create_pack (pack, SCR, mux_rate)
-Pack_struc *pack;
-unsigned int mux_rate;
-guint64 SCR;
+ 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;
+ 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;
}
@@ -218,77 +219,77 @@ guint64 SCR;
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;
+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);
- }
+ 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);
+ }
}