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gst/mpegstream/gstdvddemux.c (gst_dvd_demux_handle_newsegment): Properly handle non contiguous VOBUs by adding the se...

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Original commit message from CVS:
2005-12-08  Martin Soto  <martinsoto@users.sourceforge.net>

* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_handle_newsegment):
Properly handle non contiguous VOBUs by adding the segment accum
field to the adjust value.

* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_class_init)
(gst_dvd_demux_init, gst_dvd_demux_handle_newsegment): Extend
handle_newsegment to prevent sending actual newsegment events and
use tiemstamp rewriting instead.
(gst_dvd_demux_handle_dvd_event): Don't send a newsegment after
dvd-lang-codes.
* gst/mpegstream/gstmpegparse.c (gst_mpeg_parse_handle_newsegment)
(gst_mpeg_parse_event):
* gst/mpegstream/gstmpegparse.h (struct _GstMPEGParseClass):
Add a new parameter to handle_newsegment to allow controlling
whether newsegment events are forwarded or not.

* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_init)
(gst_dvd_demux_handle_dvd_event, gst_dvd_demux_send_subbuffer)
(gst_dvd_demux_reset):
last_end_ptm and discont_time aren't necessary anymore, since
timestamp adjustment is now replaced by newsegment events.
(gst_dvd_demux_init): Prevent MPEGParse from adjusting
timestamps.
* gst/mpegstream/gstdvddemux.h:
* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_handle_dvd_event):
Don't handle dvd-nav-packet events anymore, since the are now
replaced by standard newsegment events.

* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_init)
(gst_dvd_demux_handle_dvd_event, gst_dvd_demux_send_subbuffer)
(gst_dvd_demux_change_state):
* gst/mpegstream/gstdvddemux.h:
Get rid of the ignore_next_newmedia_discont hack.
* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_class_init)
(gst_dvd_demux_handle_newsegment):
* gst/mpegstream/gstmpegdemux.c (gst_mpeg_demux_class_init)
(gst_mpeg_demux_handle_newsegment): Don't override
handle_newsegment anymore. It was only necessary to handle
NEWMEDIA events.

* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_process_event)
(gst_dvd_demux_handle_dvd_event, gst_dvd_demux_set_cur_audio)
(gst_dvd_demux_set_cur_subpicture):
Reactivate handling of DVD events.

* gst/mpegstream/gstmpegparse.c (normal_seek)
(gst_mpeg_parse_handle_src_event)
(gst_mpeg_parse_handle_src_query):
First attempt at reenabling seek.

* gst/mpegstream/gstmpegparse.h:
* gst/mpegstream/gstmpegparse.c (gst_mpeg_parse_init)
(gst_mpeg_parse_update_streaminfo)
(gst_mpeg_parse_get_rate)
(gst_mpeg_parse_convert, gst_mpeg_parse_get_src_query_types)
(gst_mpeg_parse_handle_src_query):
* gst/mpegstream/gstmpegdemux.c (gst_mpeg_demux_new_output_pad):
Make queries work again.

* gst/mpegstream/gstmpegparse.c (gst_mpeg_parse_reset)
(gst_mpeg_parse_handle_newsegment)
(gst_mpeg_parse_send_newsegment, gst_mpeg_parse_pad_added)
(gst_mpeg_parse_chain, gst_mpeg_parse_handle_src_event):
* gst/mpegstream/gstmpegparse.h (struct _GstMPEGParse):
Get rid of the newsegment_pending attribute, and rely instead on
proper timestamp adjustment.

* gst/mpegstream/gstmpegparse.c
(gst_mpeg_parse_get_src_event_masks): Erase.

* gst/mpegstream/gstmpegparse.c (gst_mpeg_parse_init):
Initialize fields before creating pads to prevent the pad creation
callback from failing.
(gst_mpeg_parse_reset): Initialize new fields, and change
initialization order to match the order in the structure.
(gst_mpeg_parse_handle_newsegment): Forward new segment events
whenever possible, and update the current segment.
(gst_mpeg_parse_send_newsegment): Update the current segment and
pending_newsegment.
(gst_mpeg_parse_pad_added): Use the current segment to send
newsegment events to new pads.
(gst_mpeg_parse_chain): Properly add adjust time to sent buffers
and events. Properly update newsegment_pending.
* gst/mpegstream/gstmpegparse.h	(struct _GstMPEGParse):
New fields do_adjust and current_segment.

* gst/mpegstream/gstmpegdemux.c:
* gst/mpegstream/gstdvddemux.c:
* gst/mpegstream/gstmpegparse.h:
Rename handle_discont virtual method to handle_newsegment. Erase
some (already commented out support) for old NEW_MEDIA events.

* gst/mpegstream/gstmpegparse.h (struct _GstMPEGParse):
* gst/mpegstream/gstmpegparse.c (gst_mpeg_parse_init)
(gst_mpeg_parse_reset, gst_mpeg_parse_handle_discont)
(gst_mpeg_parse_pad_added, gst_mpeg_parse_parse_packhead)
(gst_mpeg_parse_event, gst_mpeg_parse_chain):
Erase the "pending_scr" field, and replace it by a slightly
different handling of the current SCR. Document code blocks in
parse_packhead and chain.
This commit is contained in:
Martin Soto 2005-12-08 12:45:09 +00:00
parent e14fa780ed
commit 81f2585c88
7 changed files with 461 additions and 395 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

103
ChangeLog
View file

@ -1,3 +1,106 @@
2005-12-08 Martin Soto <martinsoto@users.sourceforge.net>
* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_handle_newsegment):
Properly handle non contiguous VOBUs by adding the segment accum
field to the adjust value.
* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_class_init)
(gst_dvd_demux_init, gst_dvd_demux_handle_newsegment): Extend
handle_newsegment to prevent sending actual newsegment events and
use tiemstamp rewriting instead.
(gst_dvd_demux_handle_dvd_event): Don't send a newsegment after
dvd-lang-codes.
* gst/mpegstream/gstmpegparse.c (gst_mpeg_parse_handle_newsegment)
(gst_mpeg_parse_event):
* gst/mpegstream/gstmpegparse.h (struct _GstMPEGParseClass):
Add a new parameter to handle_newsegment to allow controlling
whether newsegment events are forwarded or not.
* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_init)
(gst_dvd_demux_handle_dvd_event, gst_dvd_demux_send_subbuffer)
(gst_dvd_demux_reset):
last_end_ptm and discont_time aren't necessary anymore, since
timestamp adjustment is now replaced by newsegment events.
(gst_dvd_demux_init): Prevent MPEGParse from adjusting
timestamps.
* gst/mpegstream/gstdvddemux.h:
* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_handle_dvd_event):
Don't handle dvd-nav-packet events anymore, since the are now
replaced by standard newsegment events.
* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_init)
(gst_dvd_demux_handle_dvd_event, gst_dvd_demux_send_subbuffer)
(gst_dvd_demux_change_state):
* gst/mpegstream/gstdvddemux.h:
Get rid of the ignore_next_newmedia_discont hack.
* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_class_init)
(gst_dvd_demux_handle_newsegment):
* gst/mpegstream/gstmpegdemux.c (gst_mpeg_demux_class_init)
(gst_mpeg_demux_handle_newsegment): Don't override
handle_newsegment anymore. It was only necessary to handle
NEWMEDIA events.
* gst/mpegstream/gstdvddemux.c (gst_dvd_demux_process_event)
(gst_dvd_demux_handle_dvd_event, gst_dvd_demux_set_cur_audio)
(gst_dvd_demux_set_cur_subpicture):
Reactivate handling of DVD events.
* gst/mpegstream/gstmpegparse.c (normal_seek)
(gst_mpeg_parse_handle_src_event)
(gst_mpeg_parse_handle_src_query):
First attempt at reenabling seek.
* gst/mpegstream/gstmpegparse.h:
* gst/mpegstream/gstmpegparse.c (gst_mpeg_parse_init)
(gst_mpeg_parse_update_streaminfo)
(gst_mpeg_parse_get_rate)
(gst_mpeg_parse_convert, gst_mpeg_parse_get_src_query_types)
(gst_mpeg_parse_handle_src_query):
* gst/mpegstream/gstmpegdemux.c (gst_mpeg_demux_new_output_pad):
Make queries work again.
* gst/mpegstream/gstmpegparse.c (gst_mpeg_parse_reset)
(gst_mpeg_parse_handle_newsegment)
(gst_mpeg_parse_send_newsegment, gst_mpeg_parse_pad_added)
(gst_mpeg_parse_chain, gst_mpeg_parse_handle_src_event):
* gst/mpegstream/gstmpegparse.h (struct _GstMPEGParse):
Get rid of the newsegment_pending attribute, and rely instead on
proper timestamp adjustment.
* gst/mpegstream/gstmpegparse.c
(gst_mpeg_parse_get_src_event_masks): Erase.
* gst/mpegstream/gstmpegparse.c (gst_mpeg_parse_init):
Initialize fields before creating pads to prevent the pad creation
callback from failing.
(gst_mpeg_parse_reset): Initialize new fields, and change
initialization order to match the order in the structure.
(gst_mpeg_parse_handle_newsegment): Forward new segment events
whenever possible, and update the current segment.
(gst_mpeg_parse_send_newsegment): Update the current segment and
pending_newsegment.
(gst_mpeg_parse_pad_added): Use the current segment to send
newsegment events to new pads.
(gst_mpeg_parse_chain): Properly add adjust time to sent buffers
and events. Properly update newsegment_pending.
* gst/mpegstream/gstmpegparse.h (struct _GstMPEGParse):
New fields do_adjust and current_segment.
* gst/mpegstream/gstmpegdemux.c:
* gst/mpegstream/gstdvddemux.c:
* gst/mpegstream/gstmpegparse.h:
Rename handle_discont virtual method to handle_newsegment. Erase
some (already commented out support) for old NEW_MEDIA events.
* gst/mpegstream/gstmpegparse.h (struct _GstMPEGParse):
* gst/mpegstream/gstmpegparse.c (gst_mpeg_parse_init)
(gst_mpeg_parse_reset, gst_mpeg_parse_handle_discont)
(gst_mpeg_parse_pad_added, gst_mpeg_parse_parse_packhead)
(gst_mpeg_parse_event, gst_mpeg_parse_chain):
Erase the "pending_scr" field, and replace it by a slightly
different handling of the current SCR. Document code blocks in
parse_packhead and chain.
2005-12-07 Edward Hervey <edward@fluendo.com>
* ext/mad/gstid3tag.c: (gst_mad_id3_to_tag_list):

1
gst/mpegstream/Makefile.am
View file

@ -1,4 +1,3 @@
plugin_LTLIBRARIES = libgstmpegstream.la
libgstmpegstream_la_SOURCES = gstmpegstream.c \

150
gst/mpegstream/gstdvddemux.c
View file

@ -144,12 +144,10 @@ static GstFlowReturn gst_dvd_demux_send_buffer (GstMPEGParse * mpeg_parse,
static gboolean gst_dvd_demux_process_event (GstMPEGParse * mpeg_parse,
GstEvent * event, GstClockTime time);
static gboolean gst_dvd_demux_handle_discont
(GstMPEGParse * mpeg_parse, GstEvent * event);
#if 0
static gboolean gst_dvd_demux_handle_newsegment (GstMPEGParse * mpeg_parse,
GstEvent * event, gboolean forward);
static gboolean gst_dvd_demux_handle_dvd_event
(GstDVDDemux * dvd_demux, GstEvent * event);
#endif
static GstMPEGStream *gst_dvd_demux_get_video_stream
(GstMPEGDemux * mpeg_demux,
@ -171,12 +169,10 @@ static GstFlowReturn gst_dvd_demux_send_subbuffer
GstMPEGStream * outstream,
GstBuffer * buffer, GstClockTime timestamp, guint offset, guint size);
#if 0
static void gst_dvd_demux_set_cur_audio
(GstDVDDemux * dvd_demux, gint stream_nr);
static void gst_dvd_demux_set_cur_subpicture
(GstDVDDemux * dvd_demux, gint stream_nr);
#endif
static void gst_dvd_demux_reset (GstDVDDemux * dvd_demux);
static void gst_dvd_demux_synchronise_pads (GstMPEGDemux * mpeg_demux,
@ -248,7 +244,7 @@ gst_dvd_demux_class_init (GstDVDDemuxClass * klass)
gstelement_class->change_state = gst_dvd_demux_change_state;
mpeg_parse_class->handle_discont = gst_dvd_demux_handle_discont;
mpeg_parse_class->handle_newsegment = gst_dvd_demux_handle_newsegment;
mpeg_demux_class->get_audio_stream = gst_dvd_demux_get_audio_stream;
mpeg_demux_class->get_video_stream = gst_dvd_demux_get_video_stream;
@ -286,15 +282,11 @@ gst_dvd_demux_init (GstDVDDemux * dvd_demux, GstDVDDemuxClass * klass)
dvd_demux->cur_audio_nr = 0;
dvd_demux->cur_subpicture_nr = 0;
dvd_demux->last_end_ptm = INITIAL_END_PTM;
dvd_demux->discont_time = GST_CLOCK_TIME_NONE;
for (i = 0; i < GST_DVD_DEMUX_NUM_SUBPICTURE_STREAMS; i++) {
dvd_demux->subpicture_stream[i] = NULL;
}
dvd_demux->langcodes = NULL;
dvd_demux->ignore_next_newmedia_discont = FALSE;
}
@ -314,13 +306,11 @@ gst_dvd_demux_process_event (GstMPEGParse * mpeg_parse, GstEvent * event,
gboolean ret = TRUE;
switch (GST_EVENT_TYPE (event)) {
#if 0
/* FIXME: I do not know how to port GST_EVENT_ANY to gstreamer 0.9 */
case GST_EVENT_ANY:
if (!gst_dvd_demux_handle_dvd_event (dvd_demux, event))
return GST_FLOW_ERROR;
case GST_EVENT_CUSTOM_DOWNSTREAM:
if (!gst_dvd_demux_handle_dvd_event (dvd_demux, event)) {
ret = GST_FLOW_ERROR;
}
break;
#endif
/* case GST_EVENT_FILLER: */
case GST_EVENT_NEWSEGMENT:
case GST_EVENT_FLUSH_START:
@ -337,7 +327,23 @@ gst_dvd_demux_process_event (GstMPEGParse * mpeg_parse, GstEvent * event,
return ret;
}
#if 0
static gboolean
gst_dvd_demux_handle_newsegment (GstMPEGParse * mpeg_parse,
GstEvent * event, gboolean forward)
{
gboolean ret;
/* Run the superclass implementation to update the current segment. */
ret = GST_MPEG_PARSE_CLASS (parent_class)->handle_newsegment (mpeg_parse,
event, FALSE);
/* Use the current segment to adjust timestamps. */
GST_MPEG_DEMUX (mpeg_parse)->adjust = mpeg_parse->current_segment.accum -
mpeg_parse->current_segment.start;
return ret;
}
static gboolean
gst_dvd_demux_handle_dvd_event (GstDVDDemux * dvd_demux, GstEvent * event)
{
@ -357,8 +363,7 @@ gst_dvd_demux_handle_dvd_event (GstDVDDemux * dvd_demux, GstEvent * event)
}
#endif
if (!g_str_has_prefix (gst_structure_get_name (structure),
"application/x-gst")) {
if (strcmp (gst_structure_get_name (structure), "application/x-gst-dvd") != 0) {
/* This isn't a DVD event. */
if (GST_EVENT_TIMESTAMP (event) != GST_CLOCK_TIME_NONE) {
GST_EVENT_TIMESTAMP (event) += mpeg_demux->adjust;
@ -379,9 +384,7 @@ gst_dvd_demux_handle_dvd_event (GstDVDDemux * dvd_demux, GstEvent * event)
}
gst_dvd_demux_set_cur_audio (dvd_demux, stream_nr);
gst_event_unref (event);
}
else if (strcmp (event_type, "dvd-spu-stream-change") == 0) {
} else if (strcmp (event_type, "dvd-spu-stream-change") == 0) {
gint stream_nr;
gst_structure_get_int (structure, "physical", &stream_nr);
@ -391,59 +394,6 @@ gst_dvd_demux_handle_dvd_event (GstDVDDemux * dvd_demux, GstEvent * event)
return FALSE;
}
gst_dvd_demux_set_cur_subpicture (dvd_demux, stream_nr);
gst_event_unref (event);
}
else if (strcmp (event_type, "dvd-nav-packet") == 0) {
GstClockTimeDiff old_adjust = mpeg_demux->adjust;
GstClockTime start_ptm =
g_value_get_uint64 (gst_structure_get_value (structure, "start_ptm"));
GstClockTime end_ptm =
g_value_get_uint64 (gst_structure_get_value (structure, "end_ptm"));
GstClockTime cell_start =
g_value_get_uint64 (gst_structure_get_value (structure, "cell_start"));
GstClockTime pg_start =
g_value_get_uint64 (gst_structure_get_value (structure, "pg_start"));
if (start_ptm != dvd_demux->last_end_ptm) {
GST_DEBUG_OBJECT (dvd_demux,
"PTM sequence discontinuity: from %0.3fs to %0.3fs, cell_start %0.3fs, pg_start %0.3fs",
(double) dvd_demux->last_end_ptm / GST_SECOND,
(double) start_ptm / GST_SECOND,
(double) cell_start / GST_SECOND, (double) pg_start / GST_SECOND);
if (pg_start > start_ptm)
mpeg_demux->adjust = pg_start - start_ptm;
else
mpeg_demux->adjust = 0;
/* Keep video/audio/subtitle pads within 1/2 sec of the SCR */
mpeg_demux->max_gap = 0.5 * GST_SECOND;
mpeg_demux->max_gap_tolerance = 0.05 * GST_SECOND;
}
/* Send a discont after a seek, or if PTM wrapping causes too large a gap */
if (mpeg_demux->just_flushed ||
ABS (GST_CLOCK_DIFF (dvd_demux->last_end_ptm + old_adjust,
start_ptm + mpeg_demux->adjust)) > PTM_DISCONT_ADJUST) {
/* The pipeline was just flushed, schedule a discontinuity with
the next sequence time. We don't do it here to reduce the
time gap between the discontinuity and the subsequent data
blocks. */
if (start_ptm > PTM_DISCONT_ADJUST)
dvd_demux->discont_time = start_ptm - PTM_DISCONT_ADJUST;
else
dvd_demux->discont_time = 0;
GST_DEBUG_OBJECT (dvd_demux,
"Set mpeg discont time to %" G_GINT64_FORMAT ", adjust %"
G_GINT64_FORMAT, dvd_demux->discont_time, mpeg_demux->adjust);
}
dvd_demux->last_end_ptm = end_ptm;
gst_event_unref (event);
} else if (!strcmp (event_type, "dvd-lang-codes")) {
gint num_substreams = 0, num_audstreams = 0, n;
@ -452,8 +402,6 @@ gst_dvd_demux_handle_dvd_event (GstDVDDemux * dvd_demux, GstEvent * event)
/* reset */
if (dvd_demux->langcodes)
gst_event_unref (dvd_demux->langcodes);
PARSE_CLASS (dvd_demux)->handle_discont (mpeg_parse,
gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_UNDEFINED, 0, 0, 0));
/* see what kind of streams we have */
dvd_demux->langcodes = event;
@ -513,7 +461,6 @@ gst_dvd_demux_handle_dvd_event (GstDVDDemux * dvd_demux, GstEvent * event)
/* we know this will be all */
gst_element_no_more_pads (GST_ELEMENT (dvd_demux));
dvd_demux->ignore_next_newmedia_discont = TRUE;
/* Keep video/audio/subtitle pads within 1/2 sec of the SCR */
mpeg_demux->max_gap = 0.5 * GST_SECOND;
@ -528,29 +475,6 @@ gst_dvd_demux_handle_dvd_event (GstDVDDemux * dvd_demux, GstEvent * event)
return TRUE;
}
#endif
static GstFlowReturn
gst_dvd_demux_handle_discont (GstMPEGParse * mpeg_parse, GstEvent * event)
{
#if 0
GstDVDDemux *dvd_demux = GST_DVD_DEMUX (mpeg_parse);
if (GST_EVENT_DISCONT_NEW_MEDIA (event)) {
/* HACK */
if (dvd_demux->ignore_next_newmedia_discont)
GST_EVENT_DISCONT_NEW_MEDIA (event) = FALSE;
else
gst_dvd_demux_reset (dvd_demux);
}
#endif
/* let parent handle and forward discont */
if (GST_MPEG_PARSE_CLASS (parent_class)->handle_discont != NULL)
GST_MPEG_PARSE_CLASS (parent_class)->handle_discont (mpeg_parse, event);
return GST_FLOW_OK;
}
static GstMPEGStream *
gst_dvd_demux_get_video_stream (GstMPEGDemux * mpeg_demux,
@ -1008,27 +932,11 @@ gst_dvd_demux_send_subbuffer (GstMPEGDemux * mpeg_demux,
GstMPEGStream * outstream, GstBuffer * buffer,
GstClockTime timestamp, guint offset, guint size)
{
GstMPEGParse *mpeg_parse = GST_MPEG_PARSE (mpeg_demux);
GstDVDDemux *dvd_demux = GST_DVD_DEMUX (mpeg_demux);
GstFlowReturn ret;
GstPad *outpad;
gint cur_nr;
/* If there's a pending discontinuity, send it now. The idea is to
minimize the time interval between the discontinuity and the data
buffers following it. */
if (dvd_demux->discont_time != GST_CLOCK_TIME_NONE) {
if ((gint64) (dvd_demux->discont_time) < 0) {
GST_ERROR ("DVD Discont < 0! % " G_GINT64_FORMAT,
(gint64) dvd_demux->discont_time);
}
PARSE_CLASS (mpeg_demux)->send_newsegment (mpeg_parse, 1.0,
dvd_demux->discont_time, GST_CLOCK_TIME_NONE);
dvd_demux->discont_time = GST_CLOCK_TIME_NONE;
}
dvd_demux->ignore_next_newmedia_discont = FALSE;
/* You never know what happens to a buffer when you send it. Just
in case, we keep a reference to the buffer during the execution
of this function. */
@ -1081,7 +989,6 @@ gst_dvd_demux_send_subbuffer (GstMPEGDemux * mpeg_demux,
return ret;
}
#if 0
static void
gst_dvd_demux_set_cur_audio (GstDVDDemux * dvd_demux, gint stream_nr)
{
@ -1136,7 +1043,6 @@ gst_dvd_demux_set_cur_subpicture (GstDVDDemux * dvd_demux, gint stream_nr)
gst_pad_set_caps (dvd_demux->cur_subpicture, caps);
}
}
#endif
static void
gst_dvd_demux_reset (GstDVDDemux * dvd_demux)
@ -1165,9 +1071,6 @@ gst_dvd_demux_reset (GstDVDDemux * dvd_demux)
dvd_demux->cur_audio_nr = 0;
dvd_demux->cur_subpicture_nr = 0;
dvd_demux->mpeg_version = 0;
dvd_demux->last_end_ptm = INITIAL_END_PTM;
dvd_demux->discont_time = GST_CLOCK_TIME_NONE;
#if 0
/* Reset max_gap handling */
@ -1259,7 +1162,6 @@ gst_dvd_demux_change_state (GstElement * element, GstStateChange transition)
gst_event_unref (dvd_demux->langcodes);
dvd_demux->langcodes = NULL;
}
dvd_demux->ignore_next_newmedia_discont = FALSE;
break;
default:
break;

16
gst/mpegstream/gstdvddemux.h
View file

@ -91,30 +91,20 @@ struct _GstDVDLPCMStream {
struct _GstDVDDemux {
GstMPEGDemux parent;
GstPad *cur_video; /* Current video stream pad. */
GstPad *cur_audio; /* Current audio stream pad. */
GstPad *cur_subpicture; /* Current subpicture stream pad. */
GstPad *cur_video; /* Current video stream pad. */
GstPad *cur_audio; /* Current audio stream pad. */
GstPad *cur_subpicture; /* Current subpicture stream pad. */
gint cur_video_nr; /* Current video stream number. */
gint cur_audio_nr; /* Current audio stream number. */
gint cur_subpicture_nr; /* Current subpicture stream number. */
GstClockTime last_end_ptm; /* End presentation time of the last nav packet
event received. */
GstClockTime discont_time; /* If different from GST_CLOCK_TIME_NONE, a
discontinuous event should be sent with the
given time, before sending the next data
block.. */
gint mpeg_version; /* Version of the MPEG video stream */
GstMPEGStream *subpicture_stream[GST_DVD_DEMUX_NUM_SUBPICTURE_STREAMS];
/* Subpicture output streams. */
GstEvent *langcodes;
gboolean ignore_next_newmedia_discont;
};

34
gst/mpegstream/gstmpegdemux.c
View file

@ -98,8 +98,6 @@ static gboolean gst_mpeg_demux_process_event (GstMPEGParse * mpeg_parse,
GstEvent * event, GstClockTime time);
static gboolean gst_mpeg_demux_send_newsegment (GstMPEGParse * parse,
gdouble rate, GstClockTime start_time, GstClockTime stop_time);
static gboolean gst_mpeg_demux_handle_discont (GstMPEGParse * mpeg_parse,
GstEvent * event);
static gboolean gst_mpeg_demux_send_event (GstMPEGParse * mpeg_parse,
GstEvent * event, GstClockTime time);
@ -201,7 +199,6 @@ gst_mpeg_demux_class_init (GstMPEGDemuxClass * klass)
mpeg_parse_class->send_buffer = gst_mpeg_demux_send_buffer;
mpeg_parse_class->process_event = gst_mpeg_demux_process_event;
mpeg_parse_class->send_newsegment = gst_mpeg_demux_send_newsegment;
mpeg_parse_class->handle_discont = gst_mpeg_demux_handle_discont;
mpeg_parse_class->send_event = gst_mpeg_demux_send_event;
klass->new_output_pad = gst_mpeg_demux_new_output_pad;
@ -323,25 +320,6 @@ gst_mpeg_demux_send_event (GstMPEGParse * mpeg_parse, GstEvent * event,
return TRUE;
}
static gboolean
gst_mpeg_demux_handle_discont (GstMPEGParse * mpeg_parse, GstEvent * event)
{
gboolean ret = TRUE;
#if 0
GstMPEGDemux *mpeg_demux = GST_MPEG_DEMUX (mpeg_parse);
if (GST_EVENT_DISCONT_NEW_MEDIA (event)) {
gst_mpeg_demux_reset (mpeg_demux);
}
#endif
if (parent_class->handle_discont != NULL)
ret = parent_class->handle_discont (mpeg_parse, event);
return ret;
}
static gint
_demux_get_writer_id (GstIndex * index, GstPad * pad)
{
@ -369,11 +347,11 @@ gst_mpeg_demux_new_output_pad (GstMPEGDemux * mpeg_demux,
#if 0
gst_pad_set_event_function (pad,
GST_DEBUG_FUNCPTR (gst_mpeg_demux_handle_src_event));
#endif
gst_pad_set_query_type_function (pad,
GST_DEBUG_FUNCPTR (gst_mpeg_parse_get_src_query_types));
gst_pad_set_query_function (pad,
GST_DEBUG_FUNCPTR (gst_mpeg_demux_handle_src_query));
#endif
GST_DEBUG_FUNCPTR (gst_mpeg_parse_handle_src_query));
gst_pad_use_fixed_caps (pad);
return pad;
@ -1003,8 +981,12 @@ gst_mpeg_demux_send_subbuffer (GstMPEGDemux * mpeg_demux,
if (size == 0)
return GST_FLOW_OK;
GST_DEBUG_OBJECT (mpeg_demux, "Creating subbuffer size %d, time=%"
GST_TIME_FORMAT, size, GST_TIME_ARGS (timestamp));
if (timestamp != GST_CLOCK_TIME_NONE) {
GST_DEBUG_OBJECT (mpeg_demux, "Creating subbuffer size %d, time=%"
GST_TIME_FORMAT, size, GST_TIME_ARGS (timestamp));
} else {
GST_DEBUG_OBJECT (mpeg_demux, "Creating subbuffer size %d", size);
}
outbuf = gst_buffer_create_sub (buffer, offset, size);
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;

517
gst/mpegstream/gstmpegparse.c
View file

@ -17,11 +17,10 @@
* Boston, MA 02111-1307, USA.
*/
/*#define GST_DEBUG_ENABLED*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstmpegparse.h"
#include "gstmpegclock.h"
@ -99,8 +98,10 @@ static gboolean gst_mpeg_parse_parse_packhead (GstMPEGParse * mpeg_parse,
GstBuffer * buffer);
static void gst_mpeg_parse_reset (GstMPEGParse * mpeg_parse);
static GstFlowReturn gst_mpeg_parse_handle_discont (GstMPEGParse * mpeg_parse,
GstEvent * event);
static gboolean
gst_mpeg_parse_handle_newsegment (GstMPEGParse * mpeg_parse,
GstEvent * event, gboolean forward);
static GstFlowReturn gst_mpeg_parse_send_buffer (GstMPEGParse * mpeg_parse,
GstBuffer * buffer, GstClockTime time);
@ -161,7 +162,7 @@ gst_mpeg_parse_class_init (GstMPEGParseClass * klass)
klass->parse_syshead = NULL;
klass->parse_packet = NULL;
klass->parse_pes = NULL;
klass->handle_discont = gst_mpeg_parse_handle_discont;
klass->handle_newsegment = gst_mpeg_parse_handle_newsegment;
klass->send_buffer = gst_mpeg_parse_send_buffer;
klass->process_event = gst_mpeg_parse_process_event;
klass->send_newsegment = gst_mpeg_parse_send_newsegment;
@ -198,6 +199,14 @@ gst_mpeg_parse_init (GstMPEGParse * mpeg_parse, GstMPEGParseClass * klass)
gstelement_class = GST_ELEMENT_GET_CLASS (mpeg_parse);
mpeg_parse->packetize = NULL;
mpeg_parse->max_scr_gap = DEFAULT_MAX_SCR_GAP;
mpeg_parse->byte_offset = G_MAXUINT64;
gst_mpeg_parse_reset (mpeg_parse);
templ = gst_element_class_get_pad_template (gstelement_class, "sink");
mpeg_parse->sinkpad = gst_pad_new_from_template (templ, "sink");
gst_element_add_pad (GST_ELEMENT (mpeg_parse), mpeg_parse->sinkpad);
@ -207,12 +216,10 @@ gst_mpeg_parse_init (GstMPEGParse * mpeg_parse, GstMPEGParseClass * klass)
gst_element_add_pad (GST_ELEMENT (mpeg_parse), mpeg_parse->srcpad);
gst_pad_set_event_function (mpeg_parse->srcpad,
GST_DEBUG_FUNCPTR (gst_mpeg_parse_handle_src_event));
#if 0
gst_pad_set_query_type_function (mpeg_parse->srcpad,
GST_DEBUG_FUNCPTR (gst_mpeg_parse_get_src_query_types));
gst_pad_set_query_function (mpeg_parse->srcpad,
GST_DEBUG_FUNCPTR (gst_mpeg_parse_handle_src_query));
#endif
gst_pad_use_fixed_caps (mpeg_parse->srcpad);
}
@ -220,16 +227,9 @@ gst_mpeg_parse_init (GstMPEGParse * mpeg_parse, GstMPEGParseClass * klass)
GST_DEBUG_FUNCPTR (gst_mpeg_parse_event));
gst_pad_set_chain_function (mpeg_parse->sinkpad,
GST_DEBUG_FUNCPTR (gst_mpeg_parse_chain));
mpeg_parse->packetize = NULL;
mpeg_parse->max_scr_gap = DEFAULT_MAX_SCR_GAP;
mpeg_parse->byte_offset = G_MAXUINT64;
gst_mpeg_parse_reset (mpeg_parse);
}
#if 0
#ifdef FIXME
static void
gst_mpeg_parse_update_streaminfo (GstMPEGParse * mpeg_parse)
{
@ -259,52 +259,67 @@ static void
gst_mpeg_parse_reset (GstMPEGParse * mpeg_parse)
{
GST_DEBUG ("Resetting mpeg_parse");
mpeg_parse->current_scr = 0;
mpeg_parse->current_ts = 0;
mpeg_parse->bytes_since_scr = 0;
mpeg_parse->avg_bitrate_time = 0;
mpeg_parse->avg_bitrate_bytes = 0;
mpeg_parse->first_scr = MP_INVALID_SCR;
mpeg_parse->first_scr_pos = 0;
mpeg_parse->last_scr = MP_INVALID_SCR;
mpeg_parse->last_scr_pos = 0;
mpeg_parse->scr_rate = 0;
mpeg_parse->adjust = 0;
mpeg_parse->next_scr = 0;
mpeg_parse->mux_rate = 0;
mpeg_parse->avg_bitrate_time = 0;
mpeg_parse->avg_bitrate_bytes = 0;
mpeg_parse->newsegment_pending = FALSE;
mpeg_parse->scr_pending = FALSE;
mpeg_parse->mux_rate = 0;
mpeg_parse->current_scr = MP_INVALID_SCR;
mpeg_parse->next_scr = 0;
mpeg_parse->bytes_since_scr = 0;
mpeg_parse->current_ts = 0;
mpeg_parse->do_adjust = TRUE;
mpeg_parse->adjust = 0;
/* Reset the current segment. */
GST_DEBUG_OBJECT (mpeg_parse, "Resetting current segment");
gst_segment_init (&mpeg_parse->current_segment, GST_FORMAT_TIME);
/* Send a corresponding newsegment. */
if (CLASS (mpeg_parse)->send_newsegment) {
CLASS (mpeg_parse)->send_newsegment (mpeg_parse, 1.0, 0,
GST_CLOCK_TIME_NONE);
}
}
static gboolean
gst_mpeg_parse_handle_discont (GstMPEGParse * mpeg_parse, GstEvent * event)
gst_mpeg_parse_handle_newsegment (GstMPEGParse * mpeg_parse,
GstEvent * event, gboolean forward)
{
GstFormat format;
gboolean ret = TRUE;
gint64 time;
gboolean update;
gdouble rate;
GstFormat format;
gint64 start, stop, time;
#if 0
if (GST_EVENT_DISCONT_NEW_MEDIA (event)) {
gst_mpeg_parse_reset (mpeg_parse);
}
#endif
gst_event_parse_new_segment (event, NULL, NULL, &format, &time, NULL, NULL);
gst_event_parse_new_segment (event, &update, &rate, &format,
&start, &stop, &time);
if (format == GST_FORMAT_TIME && (GST_CLOCK_TIME_IS_VALID (time))) {
GST_DEBUG_OBJECT (mpeg_parse, "forwarding discontinuity, time: %0.3fs",
(double) time / GST_SECOND);
/* Update the current segment. */
GST_DEBUG_OBJECT (mpeg_parse, "Updating current segment with newsegment");
gst_segment_set_newsegment (&mpeg_parse->current_segment,
update, rate, format, start, stop, time);
if (CLASS (mpeg_parse)->send_newsegment)
ret = CLASS (mpeg_parse)->send_newsegment (mpeg_parse, 1.0, time,
GST_CLOCK_TIME_NONE);
} else {
/* Use the next SCR to send a discontinuous event. */
GST_DEBUG_OBJECT (mpeg_parse, "Using next SCR to send discont");
mpeg_parse->newsegment_pending = TRUE;
mpeg_parse->scr_pending = TRUE;
if (forward) {
GST_DEBUG_OBJECT (mpeg_parse, "forwarding time based segment");
if (CLASS (mpeg_parse)->send_event) {
ret = CLASS (mpeg_parse)->send_event (mpeg_parse, event, time);
}
}
/* We are receiving segments from upstream. Don't try to adjust
SCR values. */
mpeg_parse->do_adjust = FALSE;
mpeg_parse->adjust = 0;
}
mpeg_parse->packetize->resync = TRUE;
@ -337,7 +352,7 @@ gst_mpeg_parse_send_buffer (GstMPEGParse * mpeg_parse, GstBuffer * buffer,
}
GST_BUFFER_TIMESTAMP (buffer) = time;
GST_DEBUG ("current_scr %" G_GINT64_FORMAT, time);
GST_DEBUG ("current buffer time: %" GST_TIME_FORMAT, GST_TIME_ARGS (time));
result = gst_pad_push (mpeg_parse->srcpad, buffer);
@ -357,8 +372,13 @@ gst_mpeg_parse_send_newsegment (GstMPEGParse * mpeg_parse, gdouble rate,
{
GstEvent *event;
event = gst_event_new_new_segment (FALSE, rate, GST_FORMAT_TIME, start_time,
stop_time, (gint64) 0);
event = gst_event_new_new_segment (FALSE, rate, GST_FORMAT_TIME,
start_time, stop_time, 0);
/* Update the current segment. */
GST_DEBUG_OBJECT (mpeg_parse, "Setting current segment");
gst_segment_set_newsegment (&mpeg_parse->current_segment, FALSE, rate,
GST_FORMAT_TIME, start_time, stop_time, 0);
if (CLASS (mpeg_parse)->send_event) {
return CLASS (mpeg_parse)->send_event (mpeg_parse, event, start_time);
@ -408,25 +428,22 @@ gst_mpeg_parse_pad_added (GstElement * element, GstPad * pad)
{
GstMPEGParse *mpeg_parse;
if (GST_PAD_IS_SINK (pad))
if (GST_PAD_IS_SINK (pad)) {
return;
}
mpeg_parse = GST_MPEG_PARSE (element);
/* For each new added pad, send a discont so it knows about the current
* time. This is required because MPEG allows any sort of order of
* packets, including setting base time before defining streams or
* even adding streams halfway a stream. */
if (!mpeg_parse->scr_pending) {
GstEvent *event = gst_event_new_new_segment (FALSE, 1.0,
GST_FORMAT_TIME,
(guint64) MPEGTIME_TO_GSTTIME (mpeg_parse->current_scr +
mpeg_parse->adjust),
GST_CLOCK_TIME_NONE,
(gint64) 0);
/* For each new added pad, send a newsegment event so it knows about
* the current time. This is required because MPEG allows any sort
* of order of packets, and new substreams can be found at any
* time. */
GstEvent *event = gst_event_new_new_segment (FALSE,
mpeg_parse->current_segment.rate,
GST_FORMAT_TIME, mpeg_parse->current_segment.start,
mpeg_parse->current_segment.stop, 0);
gst_pad_push_event (pad, event);
}
gst_pad_push_event (pad, event);
}
static gboolean
@ -444,6 +461,7 @@ gst_mpeg_parse_parse_packhead (GstMPEGParse * mpeg_parse, GstBuffer * buffer)
scr1 = GUINT32_FROM_BE (*(guint32 *) buf);
scr2 = GUINT32_FROM_BE (*(guint32 *) (buf + 4));
/* Extract the SCR and rate values from the header. */
if (GST_MPEG_PACKETIZE_IS_MPEG2 (mpeg_parse->packetize)) {
guint32 scr_ext;
@ -481,20 +499,19 @@ gst_mpeg_parse_parse_packhead (GstMPEGParse * mpeg_parse, GstBuffer * buffer)
prev_scr = mpeg_parse->current_scr;
mpeg_parse->current_scr = scr;
mpeg_parse->current_ts = MPEGTIME_TO_GSTTIME (mpeg_parse->current_scr +
mpeg_parse->adjust);
mpeg_parse->scr_pending = FALSE;
if (mpeg_parse->next_scr == MP_INVALID_SCR) {
mpeg_parse->next_scr = mpeg_parse->current_scr;
}
/* Update the first SCR. */
if ((mpeg_parse->first_scr == MP_INVALID_SCR) ||
(mpeg_parse->current_scr < mpeg_parse->first_scr)) {
mpeg_parse->first_scr = mpeg_parse->current_scr;
mpeg_parse->first_scr_pos = gst_mpeg_packetize_tell (mpeg_parse->packetize);
}
/* Update the last SCR. */
if ((mpeg_parse->last_scr == MP_INVALID_SCR) ||
(mpeg_parse->current_scr > mpeg_parse->last_scr)) {
mpeg_parse->last_scr = mpeg_parse->current_scr;
@ -515,30 +532,30 @@ gst_mpeg_parse_parse_packhead (GstMPEGParse * mpeg_parse, GstBuffer * buffer)
MPEGTIME_TO_GSTTIME (mpeg_parse->current_scr) -
MPEGTIME_TO_GSTTIME (mpeg_parse->next_scr));
/* watch out for integer overflows... */
/* Watch out for integer overflows... */
if (mpeg_parse->next_scr > scr) {
diff = mpeg_parse->next_scr - scr;
} else {
diff = scr - mpeg_parse->next_scr;
}
if (diff > mpeg_parse->max_scr_gap) {
GST_DEBUG ("discontinuity detected; expected: %" G_GUINT64_FORMAT " got: %"
if (mpeg_parse->do_adjust && diff > mpeg_parse->max_scr_gap) {
/* SCR gap found, fix the adjust value. */
GST_DEBUG ("SCR gap detected; expected: %" G_GUINT64_FORMAT " got: %"
G_GUINT64_FORMAT " adjusted:%" G_GINT64_FORMAT " adjust:%"
G_GINT64_FORMAT, mpeg_parse->next_scr, mpeg_parse->current_scr,
mpeg_parse->current_scr + mpeg_parse->adjust, mpeg_parse->adjust);
if (mpeg_parse->max_scr_gap >= 0) {
mpeg_parse->adjust +=
(gint64) mpeg_parse->next_scr - (gint64) mpeg_parse->current_scr;
GST_DEBUG ("new adjust: %" G_GINT64_FORMAT, mpeg_parse->adjust);
} else {
mpeg_parse->newsegment_pending = TRUE;
}
mpeg_parse->adjust +=
(gint64) mpeg_parse->next_scr - (gint64) mpeg_parse->current_scr;
GST_DEBUG ("new adjust: %" G_GINT64_FORMAT, mpeg_parse->adjust);
}
/* Update the current timestamp. */
mpeg_parse->current_ts = MPEGTIME_TO_GSTTIME (mpeg_parse->current_scr +
mpeg_parse->adjust);
/* Check for the reached offset signal. */
offset = gst_mpeg_packetize_tell (mpeg_parse->packetize);
if (offset > mpeg_parse->byte_offset) {
/* we have reached the wanted offset so emit the signal. */
@ -546,20 +563,22 @@ gst_mpeg_parse_parse_packhead (GstMPEGParse * mpeg_parse, GstBuffer * buffer)
gst_mpeg_parse_signals[SIGNAL_REACHED_OFFSET], 0);
}
/* Update index if any. */
if (mpeg_parse->index && GST_INDEX_IS_WRITABLE (mpeg_parse->index)) {
/* update index if any */
gst_index_add_association (mpeg_parse->index, mpeg_parse->index_id,
GST_ASSOCIATION_FLAG_KEY_UNIT,
GST_FORMAT_BYTES, GST_BUFFER_OFFSET (buffer),
GST_FORMAT_TIME, MPEGTIME_TO_GSTTIME (mpeg_parse->current_scr), 0);
}
/* Update the calculated average bitrate. */
if ((mpeg_parse->current_scr > prev_scr) && (diff < mpeg_parse->max_scr_gap)) {
mpeg_parse->avg_bitrate_time +=
MPEGTIME_TO_GSTTIME (mpeg_parse->current_scr - prev_scr);
mpeg_parse->avg_bitrate_bytes += mpeg_parse->bytes_since_scr;
}
/* Update the bitrate. */
if (mpeg_parse->mux_rate != new_rate) {
if (GST_MPEG_PACKETIZE_IS_MPEG2 (mpeg_parse->packetize)) {
mpeg_parse->mux_rate = new_rate;
@ -569,18 +588,19 @@ gst_mpeg_parse_parse_packhead (GstMPEGParse * mpeg_parse, GstBuffer * buffer)
mpeg_parse->avg_bitrate_time;
}
//gst_mpeg_parse_update_streaminfo (mpeg_parse);
GST_DEBUG ("stream current is %1.3fMbs, calculated over %1.3fkB",
GST_LOG ("stream current is %1.3fMbs, calculated over %1.3fkB",
(mpeg_parse->mux_rate * 8) / 1048576.0,
mpeg_parse->bytes_since_scr / 1024.0);
}
if (mpeg_parse->avg_bitrate_bytes) {
GST_DEBUG ("stream avg is %1.3fMbs, calculated over %1.3fkB",
GST_LOG ("stream avg is %1.3fMbs, calculated over %1.3fkB",
(float) (mpeg_parse->avg_bitrate_bytes) * 8 * GST_SECOND
/ mpeg_parse->avg_bitrate_time / 1048576.0,
mpeg_parse->avg_bitrate_bytes / 1024.0);
}
/* Range-check the calculated average bitrate. */
if (mpeg_parse->avg_bitrate_bytes > MP_MAX_VALID_BSS) {
mpeg_parse->avg_bitrate_bytes = 0;
mpeg_parse->avg_bitrate_time = 0;
@ -597,12 +617,16 @@ gst_mpeg_parse_event (GstPad * pad, GstEvent * event)
GstClockTime time;
gboolean ret = FALSE;
time = MPEGTIME_TO_GSTTIME (mpeg_parse->current_scr);
if (mpeg_parse->current_scr != MP_INVALID_SCR) {
time = MPEGTIME_TO_GSTTIME (mpeg_parse->current_scr);
} else {
time = GST_CLOCK_TIME_NONE;
}
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
if (CLASS (mpeg_parse)->handle_discont)
ret = CLASS (mpeg_parse)->handle_discont (mpeg_parse, event);
if (CLASS (mpeg_parse)->handle_newsegment)
ret = CLASS (mpeg_parse)->handle_newsegment (mpeg_parse, event, TRUE);
else
gst_event_unref (event);
break;
@ -649,21 +673,22 @@ gst_mpeg_parse_chain (GstPad * pad, GstBuffer * buffer)
GST_LOG_OBJECT (mpeg_parse, "have chunk 0x%02X", id);
switch (id) {
case 0xb9:
case ISO11172_END_START_CODE:
break;
case 0xba:
case PACK_START_CODE:
if (CLASS (mpeg_parse)->parse_packhead) {
CLASS (mpeg_parse)->parse_packhead (mpeg_parse, buffer);
}
break;
case 0xbb:
case SYS_HEADER_START_CODE:
if (CLASS (mpeg_parse)->parse_syshead) {
CLASS (mpeg_parse)->parse_syshead (mpeg_parse, buffer);
}
break;
default:
if (mpeg2 && ((id < 0xBD) || (id > 0xFE))) {
g_warning ("******** unknown id 0x%02X", id);
GST_ELEMENT_WARNING (GST_ELEMENT (mpeg_parse),
STREAM, DEMUX, (NULL), ("Unknown stream id 0x%02X", id));
} else {
if (mpeg2) {
if (CLASS (mpeg_parse)->parse_pes) {
@ -677,28 +702,19 @@ gst_mpeg_parse_chain (GstPad * pad, GstBuffer * buffer)
}
}
time = MPEGTIME_TO_GSTTIME (mpeg_parse->current_scr);
/* we're not sending data as long as no new SCR was found */
if (mpeg_parse->newsegment_pending) {
if (!mpeg_parse->scr_pending) {
if (CLASS (mpeg_parse)->send_newsegment) {
CLASS (mpeg_parse)->send_newsegment (mpeg_parse, 1.0,
MPEGTIME_TO_GSTTIME (mpeg_parse->current_scr +
mpeg_parse->adjust), GST_CLOCK_TIME_NONE);
}
mpeg_parse->newsegment_pending = FALSE;
} else {
GST_DEBUG ("waiting for SCR");
gst_buffer_unref (buffer);
result = GST_FLOW_OK;
goto done;
}
/* Don't send data as long as no new SCR is found. */
if (mpeg_parse->current_scr == MP_INVALID_SCR) {
GST_DEBUG ("waiting for SCR");
gst_buffer_unref (buffer);
result = GST_FLOW_OK;
goto done;
}
/* Update the byte count. */
size = GST_BUFFER_SIZE (buffer);
mpeg_parse->bytes_since_scr += size;
/* Make sure the output pad has proper capabilities. */
if (!GST_PAD_CAPS (mpeg_parse->sinkpad)) {
gboolean mpeg2 = GST_MPEG_PACKETIZE_IS_MPEG2 (mpeg_parse->packetize);
@ -714,9 +730,14 @@ gst_mpeg_parse_chain (GstPad * pad, GstBuffer * buffer)
}
}
/* Send the buffer. */
g_return_val_if_fail (mpeg_parse->current_scr != MP_INVALID_SCR,
GST_FLOW_OK);
time = MPEGTIME_TO_GSTTIME (mpeg_parse->current_scr + mpeg_parse->adjust);
if (CLASS (mpeg_parse)->send_buffer)
result = CLASS (mpeg_parse)->send_buffer (mpeg_parse, buffer, time);
/* Calculate the expected next SCR. */
if (mpeg_parse->current_scr != MP_INVALID_SCR) {
guint64 scr, bss, br;
@ -730,7 +751,8 @@ gst_mpeg_parse_chain (GstPad * pad, GstBuffer * buffer)
if (br) {
if (GST_MPEG_PACKETIZE_IS_MPEG2 (mpeg_parse->packetize)) {
/*
* The mpeg spec says something like this, but that doesn't really work:
* The mpeg spec says something like this, but that doesn't
* really work:
*
* mpeg_parse->next_scr = (scr * br + bss * CLOCK_FREQ) / (CLOCK_FREQ + br);
*/
@ -765,7 +787,6 @@ done:
return result;
}
#if 0
const GstFormat *
gst_mpeg_parse_get_src_formats (GstPad * pad)
{
@ -792,19 +813,21 @@ gst_mpeg_parse_get_rate (GstMPEGParse * mpeg_parse, gint64 * rate)
/* If upstream knows the total time and the total bytes,
* use those to compute an average byterate
*/
if (gst_pad_query (GST_PAD_PEER (mpeg_parse->sinkpad),
GST_QUERY_TOTAL, &time_format, &total_time)
if (gst_pad_query_duration (GST_PAD_PEER (mpeg_parse->sinkpad),
&time_format, &total_time)
&&
gst_pad_query (GST_PAD_PEER (mpeg_parse->sinkpad),
GST_QUERY_TOTAL, &bytes_format, &total_bytes)
gst_pad_query_duration (GST_PAD_PEER (mpeg_parse->sinkpad),
&bytes_format, &total_bytes)
&& total_time != 0 && total_bytes != 0) {
/* Use the funny calculation to avoid overflow of 64 bits */
*rate =
((total_bytes * GST_USECOND) / total_time) * (GST_SECOND / GST_USECOND);
*rate = ((total_bytes * GST_USECOND) / total_time) *
(GST_SECOND / GST_USECOND);
if (*rate > 0)
if (*rate > 0) {
return TRUE;
}
}
*rate = 0;
if ((mpeg_parse->first_scr != MP_INVALID_SCR) &&
@ -849,14 +872,17 @@ gst_mpeg_parse_get_rate (GstMPEGParse * mpeg_parse, gint64 * rate)
return FALSE;
}
gboolean
gst_mpeg_parse_convert_src (GstPad * pad, GstFormat src_format,
static gboolean
gst_mpeg_parse_convert (GstMPEGParse * mpeg_parse, GstFormat src_format,
gint64 src_value, GstFormat * dest_format, gint64 * dest_value)
{
gboolean res = TRUE;
GstMPEGParse *mpeg_parse = GST_MPEG_PARSE (gst_pad_get_parent (pad));
gint64 rate;
if (src_format == *dest_format) {
*dest_value = src_value;
return TRUE;
}
switch (src_format) {
case GST_FORMAT_BYTES:
@ -864,14 +890,15 @@ gst_mpeg_parse_convert_src (GstPad * pad, GstFormat src_format,
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_TIME;
case GST_FORMAT_TIME:
if (!gst_mpeg_parse_get_rate (mpeg_parse, &rate))
if (!gst_mpeg_parse_get_rate (mpeg_parse, &rate)) {
res = FALSE;
else {
} else {
*dest_value = GST_SECOND * src_value / rate;
}
break;
default:
res = FALSE;
break;
}
break;
case GST_FORMAT_TIME:
@ -879,14 +906,17 @@ gst_mpeg_parse_convert_src (GstPad * pad, GstFormat src_format,
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_BYTES;
case GST_FORMAT_BYTES:
if (!gst_mpeg_parse_get_rate (mpeg_parse, &rate))
if (!gst_mpeg_parse_get_rate (mpeg_parse, &rate)) {
res = FALSE;
else {
} else {
*dest_value = src_value * rate / GST_SECOND;
}
break;
case GST_FORMAT_TIME:
break;
default:
res = FALSE;
break;
}
break;
default:
@ -897,100 +927,121 @@ gst_mpeg_parse_convert_src (GstPad * pad, GstFormat src_format,
return res;
}
#if 0
const GstQueryType *
gst_mpeg_parse_get_src_query_types (GstPad * pad)
{
static const GstQueryType types[] = {
GST_QUERY_TOTAL,
GST_QUERY_DURATION,
GST_QUERY_POSITION,
GST_QUERY_CONVERT,
0
};
return types;
}
#endif
gboolean
gst_mpeg_parse_handle_src_query (GstPad * pad, GstQueryType type,
GstFormat * format, gint64 * value)
gst_mpeg_parse_handle_src_query (GstPad * pad, GstQuery * query)
{
gboolean res = TRUE;
GstMPEGParse *mpeg_parse = GST_MPEG_PARSE (gst_pad_get_parent (pad));
GstFormat src_format = GST_FORMAT_UNDEFINED;
gint64 src_value = 0;
GstMPEGParse *mpeg_parse = GST_MPEG_PARSE (GST_PAD_PARENT (pad));
GstFormat src_format = GST_FORMAT_UNDEFINED, format;
gint64 src_value = 0, value;
switch (type) {
case GST_QUERY_TOTAL:
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
{
switch (*format) {
gst_query_parse_duration (query, &format, NULL);
switch (format) {
case GST_FORMAT_DEFAULT:
*format = GST_FORMAT_TIME;
format = GST_FORMAT_TIME;
/* fallthrough */
case GST_FORMAT_TIME:
/*
* Try asking upstream if it knows the time - a DVD might know
*/
/* Try asking upstream if it knows the time - a DVD might
know */
src_format = GST_FORMAT_TIME;
if (gst_pad_query (GST_PAD_PEER (mpeg_parse->sinkpad),
GST_QUERY_TOTAL, &src_format, &src_value)) {
if (gst_pad_query_duration (GST_PAD_PEER (mpeg_parse->sinkpad),
&src_format, &src_value)) {
res = TRUE;
break;
}
/* Otherwise fallthrough */
default:
src_format = GST_FORMAT_BYTES;
if (!gst_pad_query (GST_PAD_PEER (mpeg_parse->sinkpad),
GST_QUERY_TOTAL, &src_format, &src_value)) {
if (!gst_pad_query_duration (GST_PAD_PEER (mpeg_parse->sinkpad),
&src_format, &src_value)) {
res = FALSE;
goto done;
}
break;
}
/* Convert the value to the desired format. */
if (!gst_mpeg_parse_convert (mpeg_parse, src_format, src_value,
&format, &value)) {
res = FALSE;
goto done;
}
gst_query_set_duration (query, format, value);
break;
}
case GST_QUERY_POSITION:
{
switch (*format) {
gst_query_parse_position (query, &format, NULL);
switch (format) {
case GST_FORMAT_DEFAULT:
*format = GST_FORMAT_TIME;
/* fallthrough */
format = GST_FORMAT_TIME;
/* Fallthrough. */
default:
src_format = GST_FORMAT_TIME;
if ((mpeg_parse->current_scr == MP_INVALID_SCR) ||
(mpeg_parse->first_scr == MP_INVALID_SCR))
(mpeg_parse->first_scr == MP_INVALID_SCR)) {
res = FALSE;
else {
gint64 cur =
(gint64) (mpeg_parse->current_scr) - mpeg_parse->first_scr;
src_value = MPEGTIME_TO_GSTTIME (MAX (0, cur));
goto done;
}
gint64 cur =
(gint64) (mpeg_parse->current_scr) - mpeg_parse->first_scr;
src_value = MPEGTIME_TO_GSTTIME (MAX (0, cur));
break;
}
/* Convert the value to the desired format. */
if (!gst_mpeg_parse_convert (mpeg_parse, src_format, src_value,
&format, &value)) {
res = FALSE;
goto done;
}
gst_query_set_position (query, format, value);
break;
}
case GST_QUERY_CONVERT:
{
gst_query_parse_convert (query, &src_format, &src_value, &format, NULL);
if (!gst_mpeg_parse_convert (mpeg_parse, src_format, src_value,
&format, &value)) {
res = FALSE;
goto done;
}
gst_query_set_convert (query, src_format, src_value, format, value);
break;
}
default:
res = FALSE;
break;
goto done;
}
/* bring to requested format */
if (res)
res = gst_pad_convert (pad, src_format, src_value, format, value);
done:
return res;
}
const GstEventMask *
gst_mpeg_parse_get_src_event_masks (GstPad * pad)
{
static const GstEventMask masks[] = {
{GST_EVENT_SEEK, GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH},
{0,}
};
return masks;
}
#ifdef FIXME
static gboolean
index_seek (GstPad * pad, GstEvent * event, gint64 * offset, gint64 * scr)
{
@ -1016,82 +1067,118 @@ index_seek (GstPad * pad, GstEvent * event, gint64 * offset, gint64 * scr)
GST_EVENT_SEEK_OFFSET (event), *offset, *scr);
return TRUE;
}
return FALSE;
}
static gboolean
normal_seek (GstPad * pad, GstEvent * event, gint64 * offset, gint64 * scr)
{
gboolean res;
GstFormat format;
gint64 time;
/* bring offset to bytes */
format = GST_FORMAT_BYTES;
res = gst_pad_convert (pad,
GST_EVENT_SEEK_FORMAT (event),
GST_EVENT_SEEK_OFFSET (event), &format, offset);
/* bring offset to time */
format = GST_FORMAT_TIME;
res &= gst_pad_convert (pad,
GST_EVENT_SEEK_FORMAT (event),
GST_EVENT_SEEK_OFFSET (event), &format, &time);
/* convert to scr */
*scr = GSTTIME_TO_MPEGTIME (time);
return res;
}
#endif
static GstEvent *
normal_seek (GstMPEGParse * mpeg_parse, GstPad * pad, GstEvent * event)
{
GstEvent *upstream = NULL;
gint64 offset;
GstFormat format, conv;
gint64 cur, stop;
gdouble rate;
GstSeekType cur_type, stop_type;
GstSeekFlags flags;
gint64 start_position, end_position;
gst_event_parse_seek (event, &rate, &format, &flags, &cur_type,
&cur, &stop_type, &stop);
offset = cur;
if (offset != -1) {
GST_LOG ("starting conversion of cur");
/* Bring the format to time on srcpad. */
conv = GST_FORMAT_TIME;
if (!gst_pad_query_convert (pad, format, offset, &conv, &start_position)) {
goto done;
}
/* And convert to bytes on sinkpad. */
conv = GST_FORMAT_BYTES;
if (!gst_pad_query_convert (mpeg_parse->sinkpad, GST_FORMAT_TIME,
start_position, &conv, &start_position)) {
goto done;
}
GST_INFO ("Finished conversion of cur, BYTES cur : %lld", start_position);
} else {
start_position = -1;
}
offset = stop;
if (offset != -1) {
GST_INFO ("starting conversion of stop");
/* Bring the format to time on srcpad. */
conv = GST_FORMAT_TIME;
if (!gst_pad_query_convert (pad, format, offset, &conv, &end_position)) {
goto done;
}
/* And convert to bytes on sinkpad. */
conv = GST_FORMAT_BYTES;
if (!gst_pad_query_convert (mpeg_parse->sinkpad, GST_FORMAT_TIME,
end_position, &conv, &end_position)) {
goto done;
}
GST_INFO ("Finished conversion of stop, BYTES stop : %lld", end_position);
} else {
end_position = -1;
}
upstream = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags,
cur_type, start_position, stop_type, end_position);
done:
return upstream;
}
gboolean
gst_mpeg_parse_handle_src_event (GstPad * pad, GstEvent * event)
{
gboolean res = FALSE;
gboolean res = TRUE;
GstEvent *upstream = NULL;
#if 0
GstMPEGParse *mpeg_parse = GST_MPEG_PARSE (gst_pad_get_parent (pad));
#endif
GST_INFO_OBJECT (mpeg_parse, "Event received");
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
{
#if 0
/* FIXME: port the seeking to gstreamer 0.9 */
gint64 desired_offset;
gint64 expected_scr = 0;
GST_INFO_OBJECT (mpeg_parse, "Seek event received");
/* first to to use the index if we have one */
if (mpeg_parse->index)
#ifdef FIXME
/* First try to use the index if we have one. */
if (mpeg_parse->index) {
res = index_seek (pad, event, &desired_offset, &expected_scr);
/* nothing found, try fuzzy seek */
if (!res)
res = normal_seek (pad, event, &desired_offset, &expected_scr);
if (!res)
break;
GST_DEBUG ("from pad %s: sending seek to %" G_GINT64_FORMAT
" expected SCR: %" G_GUINT64_FORMAT " (%" G_GUINT64_FORMAT ")",
gst_object_get_name (GST_OBJECT (pad)), desired_offset, expected_scr,
MPEGTIME_TO_GSTTIME (expected_scr));
if (gst_bytestream_seek (mpeg_parse->packetize->bs, desired_offset,
GST_SEEK_METHOD_SET)) {
mpeg_parse->newsegment_pending = TRUE;
mpeg_parse->scr_pending = TRUE;
mpeg_parse->next_scr = expected_scr;
mpeg_parse->current_scr = MP_INVALID_SCR;
mpeg_parse->current_ts = GST_CLOCK_TIME_NONE;
mpeg_parse->adjust = 0;
res = TRUE;
}
#endif
if (upstream == NULL) {
/* Nothing found, try fuzzy seek. */
upstream = normal_seek (mpeg_parse, pad, event);
}
if (!upstream) {
res = FALSE;
goto done;
}
gst_pad_push_event (pad, upstream);
break;
}
case GST_EVENT_NAVIGATION:
/* Forward navigation events unchanged. */
res = gst_pad_push_event (mpeg_parse->sinkpad, event);
break;
default:
res = FALSE;
break;
}
done:
gst_object_unref (mpeg_parse);
gst_event_unref (event);
return res;
}

35
gst/mpegstream/gstmpegparse.h
View file

@ -78,16 +78,14 @@ struct _GstMPEGParse
adjusted with the value of
'adjust') */
/* Timestamp handling. */
gboolean do_adjust; /* If true, adjust SCR values using
the 'adjust' attribute. */
gint64 adjust; /* Value added to SCR values to
produce buffer timestamps */
gint max_scr_gap; /* The maximum allowed SCR gap without
making a timestamp adjustment */
gboolean newsegment_pending; /* If true, the element should send a
NEWSEGMENT event as soon as there
is SCR information available */
gboolean scr_pending;
GstSegment current_segment; /* Segment currently being played. */
GstIndex *index;
gint index_id;
@ -99,25 +97,33 @@ struct _GstMPEGParseClass
{
GstElementClass parent_class;
/* Process packet types */
/* Process packets of different types */
gboolean (*parse_packhead) (GstMPEGParse * parse, GstBuffer * buffer);
gboolean (*parse_syshead) (GstMPEGParse * parse, GstBuffer * buffer);
GstFlowReturn (*parse_packet) (GstMPEGParse * parse, GstBuffer * buffer);
GstFlowReturn (*parse_pes) (GstMPEGParse * parse, GstBuffer * buffer);
/* Process events */
GstFlowReturn (*handle_discont) (GstMPEGParse * parse, GstEvent * event);
/* Optional method to send out the data */
GstFlowReturn (*send_buffer) (GstMPEGParse * parse,
GstBuffer * buffer, GstClockTime time);
/* Process an event */
gboolean (*process_event) (GstMPEGParse * parse,
GstEvent * event, GstClockTime time);
/* Process a newsegment event */
gboolean (*handle_newsegment)
(GstMPEGParse * parse, GstEvent * event,
gboolean forward);
/* Send an event */
gboolean (*send_event) (GstMPEGParse * parse, GstEvent *event,
GstClockTime time);
/* Send a newsegment event. */
gboolean (*send_newsegment)(GstMPEGParse * parse, gdouble rate,
GstClockTime start_time,
GstClockTime stop_time);
gboolean (*send_event) (GstMPEGParse * parse, GstEvent *event,
GstClockTime time);
/* Signals */
void (*reached_offset) (GstMPEGParse *parse,
@ -130,13 +136,10 @@ gboolean gst_mpeg_parse_plugin_init (GstPlugin * plugin);
const GstFormat *gst_mpeg_parse_get_src_formats (GstPad * pad);
gboolean gst_mpeg_parse_convert_src (GstPad * pad, GstFormat src_format,
gint64 src_value, GstFormat * dest_format, gint64 * dest_value);
gboolean gst_mpeg_parse_handle_src_event (GstPad * pad, GstEvent * event);
const GstQueryType *gst_mpeg_parse_get_src_query_types (GstPad * pad);
gboolean gst_mpeg_parse_handle_src_query (GstPad * pad, GstQueryType type,
GstFormat * format, gint64 * value);
gboolean gst_mpeg_parse_handle_src_query (GstPad * pad, GstQuery * query);
G_END_DECLS