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Diffstat (limited to 'gst/mpeg1videoparse/gstmp1videoparse.c')
-rw-r--r--gst/mpeg1videoparse/gstmp1videoparse.c249
1 files changed, 125 insertions, 124 deletions
diff --git a/gst/mpeg1videoparse/gstmp1videoparse.c b/gst/mpeg1videoparse/gstmp1videoparse.c
index e1b5b089..6c666274 100644
--- a/gst/mpeg1videoparse/gstmp1videoparse.c
+++ b/gst/mpeg1videoparse/gstmp1videoparse.c
@@ -46,19 +46,19 @@ static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/mpeg, "
- "mpegversion = (int) 1, "
- "systemstream = (boolean) false, "
- "width = (int) [ 16, 4096 ], "
- "height = (int) [ 16, 4096 ], "
- "pixel_width = (int) [ 1, 255 ], "
- "pixel_height = (int) [ 1, 255 ], " "framerate = (double) [ 0, MAX ]")
+ "mpegversion = (int) 1, "
+ "systemstream = (boolean) false, "
+ "width = (int) [ 16, 4096 ], "
+ "height = (int) [ 16, 4096 ], "
+ "pixel_width = (int) [ 1, 255 ], "
+ "pixel_height = (int) [ 1, 255 ], " "framerate = (double) [ 0, MAX ]")
);
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/mpeg, "
- "mpegversion = (int) 1, " "systemstream = (boolean) false")
+ "mpegversion = (int) 1, " "systemstream = (boolean) false")
);
/* Mp1VideoParse signals and args */
@@ -106,9 +106,10 @@ mp1videoparse_get_type (void)
0,
(GInstanceInitFunc) gst_mp1videoparse_init,
};
+
mp1videoparse_type =
- g_type_register_static (GST_TYPE_ELEMENT, "Mp1VideoParse",
- &mp1videoparse_info, 0);
+ g_type_register_static (GST_TYPE_ELEMENT, "Mp1VideoParse",
+ &mp1videoparse_info, 0);
}
return mp1videoparse_type;
}
@@ -181,9 +182,9 @@ mp1videoparse_parse_seq (Mp1VideoParse * mp1videoparse, GstBuffer * buf)
fps_idx = (n & 0x0000000f) >> 0;
if (fps_idx >= 9 || fps_idx <= 0)
- fps_idx = 3; /* well, we need a default */
+ fps_idx = 3; /* well, we need a default */
if (asr_idx >= 15 || asr_idx <= 0)
- asr_idx = 1; /* no aspect ratio */
+ asr_idx = 1; /* no aspect ratio */
if (asr_table[asr_idx] != mp1videoparse->asr ||
fps_table[fps_idx] != mp1videoparse->fps ||
@@ -200,12 +201,12 @@ mp1videoparse_parse_seq (Mp1VideoParse * mp1videoparse, GstBuffer * buf)
p_h = (asr_table[asr_idx] > 1.0) ? (100 * asr_table[asr_idx]) : 1;
caps = gst_caps_new_simple ("video/mpeg",
- "systemstream", G_TYPE_BOOLEAN, FALSE,
- "mpegversion", G_TYPE_INT, 1,
- "width", G_TYPE_INT, width,
- "height", G_TYPE_INT, height,
- "framerate", G_TYPE_DOUBLE, fps_table[fps_idx],
- "pixel_width", G_TYPE_INT, p_w, "pixel_height", G_TYPE_INT, p_h, NULL);
+ "systemstream", G_TYPE_BOOLEAN, FALSE,
+ "mpegversion", G_TYPE_INT, 1,
+ "width", G_TYPE_INT, width,
+ "height", G_TYPE_INT, height,
+ "framerate", G_TYPE_DOUBLE, fps_table[fps_idx],
+ "pixel_width", G_TYPE_INT, p_w, "pixel_height", G_TYPE_INT, p_h, NULL);
GST_DEBUG ("New mpeg1videoparse caps: " GST_PTR_FORMAT, caps);
@@ -220,7 +221,7 @@ mp1videoparse_valid_sync (Mp1VideoParse * mp1videoparse, guint32 head,
switch (head) {
case SEQ_START_CODE:{
GstBuffer *subbuf = gst_buffer_create_sub (buf, 4,
- GST_BUFFER_SIZE (buf) - 4);
+ GST_BUFFER_SIZE (buf) - 4);
mp1videoparse_parse_seq (mp1videoparse, subbuf);
gst_buffer_unref (subbuf);
@@ -233,7 +234,7 @@ mp1videoparse_valid_sync (Mp1VideoParse * mp1videoparse, guint32 head,
return TRUE;
default:
if (head >= SLICE_MIN_START_CODE && head <= SLICE_MAX_START_CODE)
- return TRUE;
+ return TRUE;
}
return FALSE;
@@ -259,10 +260,10 @@ mp1videoparse_find_next_gop (Mp1VideoParse * mp1videoparse, GstBuffer * buf)
have_sync = TRUE;
} else if (have_sync) {
if (byte == (SEQ_START_CODE & 0xff) || byte == (GOP_START_CODE & 0xff)) {
- return offset - 4;
+ return offset - 4;
} else {
- sync_zeros = 0;
- have_sync = FALSE;
+ sync_zeros = 0;
+ have_sync = FALSE;
}
} else {
sync_zeros = 0;
@@ -277,10 +278,10 @@ gst_mp1videoparse_time_code (guchar * gop, gfloat fps)
{
guint32 data = GUINT32_FROM_BE (*(guint32 *) gop);
- return ((((data & 0xfc000000) >> 26) * 3600 * GST_SECOND) + /* hours */
- (((data & 0x03f00000) >> 20) * 60 * GST_SECOND) + /* minutes */
- (((data & 0x0007e000) >> 13) * GST_SECOND) + /* seconds */
- (((data & 0x00001f80) >> 7) * GST_SECOND / fps)); /* frames */
+ return ((((data & 0xfc000000) >> 26) * 3600 * GST_SECOND) + /* hours */
+ (((data & 0x03f00000) >> 20) * 60 * GST_SECOND) + /* minutes */
+ (((data & 0x0007e000) >> 13) * GST_SECOND) + /* seconds */
+ (((data & 0x00001f80) >> 7) * GST_SECOND / fps)); /* frames */
}
static void
@@ -334,17 +335,17 @@ gst_mp1videoparse_real_chain (Mp1VideoParse * mp1videoparse, GstBuffer * buf,
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH:
case GST_EVENT_DISCONTINUOUS:
- gst_mp1videoparse_flush (mp1videoparse);
- break;
+ gst_mp1videoparse_flush (mp1videoparse);
+ break;
case GST_EVENT_EOS:
- gst_mp1videoparse_flush (mp1videoparse);
- gst_event_ref (event);
- gst_pad_push (outpad, GST_DATA (event));
- gst_element_set_eos (GST_ELEMENT (mp1videoparse));
- break;
+ gst_mp1videoparse_flush (mp1videoparse);
+ gst_event_ref (event);
+ gst_pad_push (outpad, GST_DATA (event));
+ gst_element_set_eos (GST_ELEMENT (mp1videoparse));
+ break;
default:
- GST_DEBUG ("Unhandled event type %d", GST_EVENT_TYPE (event));
- break;
+ GST_DEBUG ("Unhandled event type %d", GST_EVENT_TYPE (event));
+ break;
}
gst_event_unref (event);
@@ -382,43 +383,43 @@ gst_mp1videoparse_real_chain (Mp1VideoParse * mp1videoparse, GstBuffer * buf,
GST_DEBUG ("mp1videoparse: head is %08x", (unsigned int) head);
if (!mp1videoparse_valid_sync (mp1videoparse, head,
- mp1videoparse->partialbuf) || mp1videoparse->need_resync) {
+ mp1videoparse->partialbuf) || mp1videoparse->need_resync) {
sync_pos =
- mp1videoparse_find_next_gop (mp1videoparse,
- mp1videoparse->partialbuf);
+ mp1videoparse_find_next_gop (mp1videoparse,
+ mp1videoparse->partialbuf);
if (sync_pos >= 0) {
- mp1videoparse->need_resync = FALSE;
- GST_DEBUG ("mp1videoparse: found new gop at %d", sync_pos);
-
- if (sync_pos != 0) {
- temp =
- gst_buffer_create_sub (mp1videoparse->partialbuf, sync_pos,
- size - sync_pos);
- g_assert (temp != NULL);
- gst_buffer_unref (mp1videoparse->partialbuf);
- mp1videoparse->partialbuf = temp;
- data = GST_BUFFER_DATA (mp1videoparse->partialbuf);
- size = GST_BUFFER_SIZE (mp1videoparse->partialbuf);
- offset = 0;
- }
-
- head = GUINT32_FROM_BE (*((guint32 *) data));
- /* re-call this function so that if we hadn't already, we can
- * now read the sequence header and parse video properties,
- * set caps, stream data, be happy, bla, bla, bla... */
- if (!mp1videoparse_valid_sync (mp1videoparse, head,
- mp1videoparse->partialbuf))
- g_error ("Found sync but no valid sync point at pos 0x0");
+ mp1videoparse->need_resync = FALSE;
+ GST_DEBUG ("mp1videoparse: found new gop at %d", sync_pos);
+
+ if (sync_pos != 0) {
+ temp =
+ gst_buffer_create_sub (mp1videoparse->partialbuf, sync_pos,
+ size - sync_pos);
+ g_assert (temp != NULL);
+ gst_buffer_unref (mp1videoparse->partialbuf);
+ mp1videoparse->partialbuf = temp;
+ data = GST_BUFFER_DATA (mp1videoparse->partialbuf);
+ size = GST_BUFFER_SIZE (mp1videoparse->partialbuf);
+ offset = 0;
+ }
+
+ head = GUINT32_FROM_BE (*((guint32 *) data));
+ /* re-call this function so that if we hadn't already, we can
+ * now read the sequence header and parse video properties,
+ * set caps, stream data, be happy, bla, bla, bla... */
+ if (!mp1videoparse_valid_sync (mp1videoparse, head,
+ mp1videoparse->partialbuf))
+ g_error ("Found sync but no valid sync point at pos 0x0");
} else {
- GST_DEBUG ("mp1videoparse: could not sync");
- gst_buffer_unref (mp1videoparse->partialbuf);
- mp1videoparse->partialbuf = NULL;
- return;
+ GST_DEBUG ("mp1videoparse: could not sync");
+ gst_buffer_unref (mp1videoparse->partialbuf);
+ mp1videoparse->partialbuf = NULL;
+ return;
}
}
if (mp1videoparse->picture_in_buffer == 1 &&
- time_stamp != GST_CLOCK_TIME_NONE) {
+ time_stamp != GST_CLOCK_TIME_NONE) {
mp1videoparse->last_pts = time_stamp;
}
@@ -430,56 +431,56 @@ gst_mp1videoparse_real_chain (Mp1VideoParse * mp1videoparse, GstBuffer * buf,
while (offset < size - 1) {
sync_byte = *(data + offset);
if (sync_byte == 0) {
- sync_state++;
+ sync_state++;
} else if ((sync_byte == 1) && (sync_state >= 2)) {
- GST_DEBUG ("mp1videoparse: code 0x000001%02x", data[offset + 1]);
- if (data[offset + 1] == (PICTURE_START_CODE & 0xff)) {
- mp1videoparse->picture_in_buffer++;
- if (mp1videoparse->picture_in_buffer == 1) {
- if (time_stamp != GST_CLOCK_TIME_NONE) {
- mp1videoparse->last_pts = time_stamp;
- }
- sync_state = 0;
- } else if (mp1videoparse->picture_in_buffer == 2) {
- have_sync = TRUE;
- break;
- } else {
- GST_DEBUG ("mp1videoparse: %d in buffer",
- mp1videoparse->picture_in_buffer);
- g_assert_not_reached ();
- }
- }
- /* A new sequence (or GOP) is a valid sync too. Note that the
- * sequence header should be put in the next buffer, not here. */
- else if (data[offset + 1] == (SEQ_START_CODE & 0xFF) ||
- data[offset + 1] == (GOP_START_CODE & 0xFF)) {
- if (mp1videoparse->picture_in_buffer == 0 &&
- data[offset + 1] == (GOP_START_CODE & 0xFF)) {
- mp1videoparse->last_pts = gst_mp1videoparse_time_code (&data[2],
- mp1videoparse->fps);
- } else if (mp1videoparse->picture_in_buffer == 1) {
- have_sync = TRUE;
- break;
- } else {
- g_assert (mp1videoparse->picture_in_buffer == 0);
- }
- }
- /* end-of-sequence is a valid sync point and should be included
- * in the current picture, not the next. */
- else if (data[offset + 1] == (SEQ_END_CODE & 0xFF)) {
- if (mp1videoparse->picture_in_buffer == 1) {
- offset += 4;
- have_sync = TRUE;
- break;
- } else {
- g_assert (mp1videoparse->picture_in_buffer == 0);
- }
- } else
- sync_state = 0;
+ GST_DEBUG ("mp1videoparse: code 0x000001%02x", data[offset + 1]);
+ if (data[offset + 1] == (PICTURE_START_CODE & 0xff)) {
+ mp1videoparse->picture_in_buffer++;
+ if (mp1videoparse->picture_in_buffer == 1) {
+ if (time_stamp != GST_CLOCK_TIME_NONE) {
+ mp1videoparse->last_pts = time_stamp;
+ }
+ sync_state = 0;
+ } else if (mp1videoparse->picture_in_buffer == 2) {
+ have_sync = TRUE;
+ break;
+ } else {
+ GST_DEBUG ("mp1videoparse: %d in buffer",
+ mp1videoparse->picture_in_buffer);
+ g_assert_not_reached ();
+ }
+ }
+ /* A new sequence (or GOP) is a valid sync too. Note that the
+ * sequence header should be put in the next buffer, not here. */
+ else if (data[offset + 1] == (SEQ_START_CODE & 0xFF) ||
+ data[offset + 1] == (GOP_START_CODE & 0xFF)) {
+ if (mp1videoparse->picture_in_buffer == 0 &&
+ data[offset + 1] == (GOP_START_CODE & 0xFF)) {
+ mp1videoparse->last_pts = gst_mp1videoparse_time_code (&data[2],
+ mp1videoparse->fps);
+ } else if (mp1videoparse->picture_in_buffer == 1) {
+ have_sync = TRUE;
+ break;
+ } else {
+ g_assert (mp1videoparse->picture_in_buffer == 0);
+ }
+ }
+ /* end-of-sequence is a valid sync point and should be included
+ * in the current picture, not the next. */
+ else if (data[offset + 1] == (SEQ_END_CODE & 0xFF)) {
+ if (mp1videoparse->picture_in_buffer == 1) {
+ offset += 4;
+ have_sync = TRUE;
+ break;
+ } else {
+ g_assert (mp1videoparse->picture_in_buffer == 0);
+ }
+ } else
+ sync_state = 0;
}
/* something else... */
else
- sync_state = 0;
+ sync_state = 0;
/* go down the buffer */
offset++;
}
@@ -487,7 +488,7 @@ gst_mp1videoparse_real_chain (Mp1VideoParse * mp1videoparse, GstBuffer * buf,
if (have_sync) {
offset -= 2;
GST_DEBUG ("mp1videoparse: synced at %ld code 0x000001%02x", offset,
- data[offset + 3]);
+ data[offset + 3]);
outbuf = gst_buffer_create_sub (mp1videoparse->partialbuf, 0, offset + 4);
g_assert (outbuf != NULL);
@@ -496,31 +497,31 @@ gst_mp1videoparse_real_chain (Mp1VideoParse * mp1videoparse, GstBuffer * buf,
mp1videoparse->last_pts += GST_BUFFER_DURATION (outbuf);
if (mp1videoparse->in_flush) {
- /* FIXME, send a flush event here */
- mp1videoparse->in_flush = FALSE;
+ /* FIXME, send a flush event here */
+ mp1videoparse->in_flush = FALSE;
}
if (GST_PAD_CAPS (outpad) != NULL) {
- GST_DEBUG ("mp1videoparse: pushing %d bytes %" G_GUINT64_FORMAT,
- GST_BUFFER_SIZE (outbuf), GST_BUFFER_TIMESTAMP (outbuf));
- gst_pad_push (outpad, GST_DATA (outbuf));
- GST_DEBUG ("mp1videoparse: pushing done");
+ GST_DEBUG ("mp1videoparse: pushing %d bytes %" G_GUINT64_FORMAT,
+ GST_BUFFER_SIZE (outbuf), GST_BUFFER_TIMESTAMP (outbuf));
+ gst_pad_push (outpad, GST_DATA (outbuf));
+ GST_DEBUG ("mp1videoparse: pushing done");
} else {
- GST_DEBUG ("No capsnego yet, delaying buffer push");
- gst_buffer_unref (outbuf);
+ GST_DEBUG ("No capsnego yet, delaying buffer push");
+ gst_buffer_unref (outbuf);
}
mp1videoparse->picture_in_buffer = 0;
temp =
- gst_buffer_create_sub (mp1videoparse->partialbuf, offset,
- size - offset);
+ gst_buffer_create_sub (mp1videoparse->partialbuf, offset,
+ size - offset);
gst_buffer_unref (mp1videoparse->partialbuf);
mp1videoparse->partialbuf = temp;
offset = 0;
} else {
if (time_stamp != GST_CLOCK_TIME_NONE) {
- mp1videoparse->last_pts = time_stamp;
- break;
+ mp1videoparse->last_pts = time_stamp;
+ break;
}
}
} while (1);
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-28 06:03:01 +0000