mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-01-12 02:15:31 +00:00
Code Issues 1 Projects Releases Wiki Activity

ext/ogg/gstoggdemux.c: Mark buffers with DISCONT after seek and after activating new chains.

Browse source 
Original commit message from CVS:
* ext/ogg/gstoggdemux.c: (gst_ogg_demux_chain_peer),
(gst_ogg_chain_mark_discont), (gst_ogg_chain_new_stream),
(gst_ogg_demux_activate_chain), (gst_ogg_demux_perform_seek):
Mark buffers with DISCONT after seek and after activating new
chains.
* ext/theora/gsttheoradec.h:
* ext/theora/theoradec.c: (gst_theora_dec_reset),
(theora_get_query_types), (theora_dec_sink_event),
(theora_dec_push), (theora_handle_data_packet), (theora_dec_chain),
(theora_dec_change_state):
Fix frame counter.
Detect and mark DISCONT buffers.
* ext/vorbis/vorbisdec.c: (vorbis_dec_src_query),
(vorbis_dec_sink_event), (vorbis_dec_push), (vorbis_dec_chain),
(vorbis_dec_change_state):
* ext/vorbis/vorbisdec.h:
Use GstSegment.
Detect and mark DISCONT buffers.
Don't crash on 0 sized buffers.
This commit is contained in:
Wim Taymans 2006-05-03 15:34:48 +00:00
parent 461ffeda1b
commit 9e6ae51849
6 changed files with 133 additions and 35 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
ChangeLog
View file

@ -1,3 +1,27 @@
2006-05-03 Wim Taymans <wim@fluendo.com>
* ext/ogg/gstoggdemux.c: (gst_ogg_demux_chain_peer),
(gst_ogg_chain_mark_discont), (gst_ogg_chain_new_stream),
(gst_ogg_demux_activate_chain), (gst_ogg_demux_perform_seek):
Mark buffers with DISCONT after seek and after activating new
chains.
* ext/theora/gsttheoradec.h:
* ext/theora/theoradec.c: (gst_theora_dec_reset),
(theora_get_query_types), (theora_dec_sink_event),
(theora_dec_push), (theora_handle_data_packet), (theora_dec_chain),
(theora_dec_change_state):
Fix frame counter.
Detect and mark DISCONT buffers.
* ext/vorbis/vorbisdec.c: (vorbis_dec_src_query),
(vorbis_dec_sink_event), (vorbis_dec_push), (vorbis_dec_chain),
(vorbis_dec_change_state):
* ext/vorbis/vorbisdec.h:
Use GstSegment.
Detect and mark DISCONT buffers.
Don't crash on 0 sized buffers.
2006-05-03 Wim Taymans <wim@fluendo.com>
* gst/volume/gstvolume.c: (volume_funcfind), (volume_set_caps),

32
ext/ogg/gstoggdemux.c
View file

@ -137,6 +137,8 @@ struct _GstOggPad
ogg_stream_state stream;
gboolean discont;
gboolean dynamic; /* True if the internal element had dynamic pads */
guint padaddedid; /* The signal id for element::pad-added */
};
@ -949,6 +951,12 @@ gst_ogg_demux_chain_peer (GstOggPad * pad, ogg_packet * packet)
GST_BUFFER_OFFSET (buf) = -1;
GST_BUFFER_OFFSET_END (buf) = packet->granulepos;
/* Mark discont on the buffer */
if (pad->discont) {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
pad->discont = FALSE;
}
ret = gst_pad_push (GST_PAD (pad), buf);
/* ignore not linked */
if (ret == GST_FLOW_NOT_LINKED)
@ -1204,6 +1212,18 @@ gst_ogg_chain_free (GstOggChain * chain)
g_free (chain);
}
static void
gst_ogg_chain_mark_discont (GstOggChain * chain)
{
gint i;
for (i = 0; i < chain->streams->len; i++) {
GstOggPad *pad = g_array_index (chain->streams, GstOggPad *, i);
pad->discont = TRUE;
}
}
static GstOggPad *
gst_ogg_chain_new_stream (GstOggChain * chain, glong serialno)
{
@ -1225,6 +1245,7 @@ gst_ogg_chain_new_stream (GstOggChain * chain, glong serialno)
GST_PAD_DIRECTION (ret) = GST_PAD_SRC;
ret->chain = chain;
ret->ogg = chain->ogg;
ret->discont = TRUE;
gst_object_set_name (GST_OBJECT (ret), name);
g_free (name);
@ -1643,6 +1664,9 @@ gst_ogg_demux_activate_chain (GstOggDemux * ogg, GstOggChain * chain,
pad = g_array_index (chain->streams, GstOggPad *, i);
GST_DEBUG_OBJECT (ogg, "adding pad %" GST_PTR_FORMAT, pad);
/* mark discont */
pad->discont = TRUE;
/* activate first */
gst_pad_set_active (GST_PAD_CAST (pad), TRUE);
@ -1667,6 +1691,11 @@ gst_ogg_demux_activate_chain (GstOggDemux * ogg, GstOggChain * chain,
for (headers = pad->headers; headers; headers = g_list_next (headers)) {
GstBuffer *buffer = GST_BUFFER (headers->data);
if (pad->discont) {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
pad->discont = FALSE;
}
/* we don't care about the return value here */
gst_pad_push (GST_PAD_CAST (pad), buffer);
}
@ -1991,7 +2020,8 @@ gst_ogg_demux_perform_seek (GstOggDemux * ogg, GstEvent * event)
/* switch to different chain, send segment on new chain */
gst_ogg_demux_activate_chain (ogg, chain, event);
} else {
/* send segment on current chain */
/* mark discont and send segment on current chain */
gst_ogg_chain_mark_discont (chain);
gst_ogg_demux_send_event (ogg, event);
}

1
ext/theora/gsttheoradec.h
View file

@ -78,6 +78,7 @@ struct _GstTheoraDec
/* segment info */ /* with STREAM_LOCK */
GstSegment segment;
gboolean discont;
/* QoS stuff */ /* with LOCK*/
gdouble proportion;

46
ext/theora/theoradec.c
View file

@ -172,6 +172,8 @@ gst_theora_dec_reset (GstTheoraDec * dec)
dec->need_keyframe = TRUE;
dec->last_timestamp = -1;
dec->granulepos = -1;
dec->discont = TRUE;
dec->frame_nr = -1;
gst_segment_init (&dec->segment, GST_FORMAT_TIME);
GST_OBJECT_LOCK (dec);
@ -180,7 +182,6 @@ gst_theora_dec_reset (GstTheoraDec * dec)
GST_OBJECT_UNLOCK (dec);
}
/* FIXME: copy from libtheora, theora should somehow make this available for seeking */
static int
_theora_ilog (unsigned int v)
{
@ -281,6 +282,8 @@ theora_get_query_types (GstPad * pad)
{
static const GstQueryType theora_src_query_types[] = {
GST_QUERY_POSITION,
GST_QUERY_DURATION,
GST_QUERY_CONVERT,
0
};
@ -641,7 +644,6 @@ theora_dec_sink_event (GstPad * pad, GstEvent * event)
ret = gst_pad_push_event (dec->srcpad, event);
break;
case GST_EVENT_FLUSH_STOP:
/* FIXME, makes us waiting for keyframes */
gst_theora_dec_reset (dec);
ret = gst_pad_push_event (dec->srcpad, event);
break;
@ -876,6 +878,11 @@ theora_dec_push (GstTheoraDec * dec, GstBuffer * buf)
GST_DEBUG_OBJECT (dec, "patch buffer %lld %lld", size, time);
GST_BUFFER_TIMESTAMP (buffer) = time;
if (dec->discont) {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
dec->discont = FALSE;
}
/* ignore the result.. */
gst_pad_push (dec->srcpad, buffer);
size--;
@ -883,6 +890,10 @@ theora_dec_push (GstTheoraDec * dec, GstBuffer * buf)
g_list_free (dec->queued);
dec->queued = NULL;
}
if (dec->discont) {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
dec->discont = FALSE;
}
result = gst_pad_push (dec->srcpad, buf);
}
@ -904,20 +915,23 @@ theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet,
gint cwidth, cheight;
GstFlowReturn result;
if (!dec->have_header)
if (G_UNLIKELY (!dec->have_header))
goto not_initialized;
/* the second most significant bit of the first data byte is cleared
* for keyframes */
keyframe = (packet->packet[0] & 0x40) == 0;
if (keyframe) {
GST_DEBUG_OBJECT (dec, "we have a keyframe");
dec->need_keyframe = FALSE;
} else if (dec->need_keyframe) {
goto dropping;
}
GST_DEBUG_OBJECT (dec, "parsing data packet");
/* this does the decoding */
if (theora_decode_packetin (&dec->state, packet))
if (G_UNLIKELY (theora_decode_packetin (&dec->state, packet)))
goto decode_error;
if (outtime != -1) {
@ -942,10 +956,11 @@ theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet,
/* this does postprocessing and set up the decoded frame
* pointers in our yuv variable */
if (theora_decode_YUVout (&dec->state, &yuv) < 0)
if (G_UNLIKELY (theora_decode_YUVout (&dec->state, &yuv) < 0))
goto no_yuv;
if ((yuv.y_width != dec->info.width) || (yuv.y_height != dec->info.height))
if (G_UNLIKELY ((yuv.y_width != dec->info.width)
|| (yuv.y_height != dec->info.height)))
goto wrong_dimensions;
width = dec->width;
@ -966,7 +981,7 @@ theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet,
result =
gst_pad_alloc_buffer_and_set_caps (dec->srcpad, GST_BUFFER_OFFSET_NONE,
out_size, GST_PAD_CAPS (dec->srcpad), &out);
if (result != GST_FLOW_OK)
if (G_UNLIKELY (result != GST_FLOW_OK))
goto no_buffer;
/* copy the visible region to the destination. This is actually pretty
@ -1011,9 +1026,9 @@ theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet,
}
}
/* FIXME, frame_nr not correct */
GST_BUFFER_OFFSET (out) = dec->frame_nr;
dec->frame_nr++;
if (dec->frame_nr != -1)
dec->frame_nr++;
GST_BUFFER_OFFSET_END (out) = dec->frame_nr;
GST_BUFFER_DURATION (out) =
gst_util_uint64_scale_int (GST_SECOND, dec->info.fps_denominator,
@ -1034,11 +1049,14 @@ not_initialized:
dropping:
{
GST_WARNING_OBJECT (dec, "dropping frame because we need a keyframe");
dec->discont = TRUE;
return GST_FLOW_OK;
}
dropping_qos:
{
dec->frame_nr++;
if (dec->frame_nr != -1)
dec->frame_nr++;
dec->discont = TRUE;
GST_WARNING_OBJECT (dec, "dropping frame because of QoS");
return GST_FLOW_OK;
}
@ -1079,9 +1097,11 @@ theora_dec_chain (GstPad * pad, GstBuffer * buf)
/* resync on DISCONT */
if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT))) {
GST_DEBUG_OBJECT (dec, "received DISCONT buffer");
dec->need_keyframe = TRUE;
dec->last_timestamp = -1;
dec->granulepos = -1;
dec->discont = TRUE;
}
/* make ogg_packet out of the buffer */
@ -1107,7 +1127,7 @@ theora_dec_chain (GstPad * pad, GstBuffer * buf)
if (packet.bytes < 1)
goto wrong_size;
GST_DEBUG_OBJECT (dec, "header=%d packetno=%lld, outtime=%" GST_TIME_FORMAT,
GST_DEBUG_OBJECT (dec, "header=%02x packetno=%lld, outtime=%" GST_TIME_FORMAT,
packet.packet[0], packet.packetno, GST_TIME_ARGS (dec->last_timestamp));
/* switch depending on packet type */
@ -1122,7 +1142,7 @@ theora_dec_chain (GstPad * pad, GstBuffer * buf)
}
done:
/* interpollate granule pos */
/* interpolate granule pos */
dec->granulepos = _inc_granulepos (dec, dec->granulepos);
gst_object_unref (dec);
@ -1135,6 +1155,7 @@ done:
wrong_size:
{
GST_WARNING_OBJECT (dec, "received empty packet");
dec->discont = TRUE;
result = GST_FLOW_OK;
goto done;
}
@ -1171,6 +1192,7 @@ theora_dec_change_state (GstElement * element, GstStateChange transition)
theora_clear (&dec->state);
theora_comment_clear (&dec->comment);
theora_info_clear (&dec->info);
gst_theora_dec_reset (dec);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;

59
ext/vorbis/vorbisdec.c
View file

@ -275,7 +275,7 @@ vorbis_dec_src_query (GstPad * pad, GstQuery * query)
&value)))
goto error;
value = (value - dec->segment_start) + dec->segment_time;
value = (value - dec->segment.start) + dec->segment.time;
gst_query_set_position (query, format, value);
@ -426,25 +426,18 @@ vorbis_dec_sink_event (GstPad * pad, GstEvent * event)
gst_event_parse_new_segment (event, &update, &rate, &format, &start,
&stop, &time);
/* we need time and a positive rate for now */
if (format != GST_FORMAT_TIME)
goto newseg_wrong_format;
if (rate <= 0.0)
goto newseg_wrong_rate;
/* now copy over the values */
dec->segment_rate = rate;
dec->segment_start = start;
dec->segment_stop = stop;
dec->segment_time = time;
/* now configure the values */
gst_segment_set_newsegment (&dec->segment, update,
rate, format, start, stop, time);
dec->granulepos = -1;
dec->cur_timestamp = GST_CLOCK_TIME_NONE;
dec->prev_timestamp = GST_CLOCK_TIME_NONE;
#ifdef HAVE_VORBIS_SYNTHESIS_RESTART
vorbis_synthesis_restart (&dec->vd);
#endif
/* and forward */
ret = gst_pad_push_event (dec->srcpad, event);
break;
}
@ -659,6 +652,8 @@ header_read_error:
}
}
/* These samples can be outside of the float -1.0 -- 1.0 range, this
* is allowed, downstream elements are supposed to clip */
static void
copy_samples (float *out, float **in, guint samples, gint channels)
{
@ -714,11 +709,19 @@ vorbis_dec_push (GstVorbisDec * dec, GstBuffer * buf)
GstBuffer *buffer = GST_BUFFER (walk->data);
/* ignore the result */
if (dec->discont) {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
dec->discont = FALSE;
}
gst_pad_push (dec->srcpad, buffer);
}
g_list_free (dec->queued);
dec->queued = NULL;
}
if (dec->discont) {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
dec->discont = FALSE;
}
result = gst_pad_push (dec->srcpad, buf);
}
@ -841,12 +844,18 @@ vorbis_dec_chain (GstPad * pad, GstBuffer * buffer)
ogg_packet packet;
GstFlowReturn result = GST_FLOW_OK;
vd = GST_VORBIS_DEC (GST_PAD_PARENT (pad));
vd = GST_VORBIS_DEC (gst_pad_get_parent (pad));
if (GST_BUFFER_SIZE (buffer) == 0) {
gst_buffer_unref (buffer);
GST_ELEMENT_ERROR (vd, STREAM, DECODE, (NULL), ("empty buffer received"));
return GST_FLOW_ERROR;
/* resync on DISCONT */
if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT))) {
GST_DEBUG_OBJECT (vd, "received DISCONT buffer");
vd->granulepos = -1;
vd->cur_timestamp = GST_CLOCK_TIME_NONE;
vd->prev_timestamp = GST_CLOCK_TIME_NONE;
#ifdef HAVE_VORBIS_SYNTHESIS_RESTART
vorbis_synthesis_restart (&vd->vd);
#endif
vd->discont = TRUE;
}
/* only ogg has granulepos, demuxers of other container formats
@ -876,6 +885,9 @@ vorbis_dec_chain (GstPad * pad, GstBuffer * buffer)
*/
packet.e_o_s = 0;
if (packet.bytes < 1)
goto wrong_size;
GST_DEBUG_OBJECT (vd, "vorbis granule: %" G_GINT64_FORMAT,
(gint64) packet.granulepos);
@ -895,8 +907,18 @@ vorbis_dec_chain (GstPad * pad, GstBuffer * buffer)
done:
gst_buffer_unref (buffer);
gst_object_unref (vd);
return result;
/* ERRORS */
wrong_size:
{
GST_WARNING_OBJECT (vd, "received empty packet");
result = GST_FLOW_OK;
vd->discont = TRUE;
goto done;
}
}
static GstStateChangeReturn
@ -917,6 +939,7 @@ vorbis_dec_change_state (GstElement * element, GstStateChange transition)
vd->prev_timestamp = GST_CLOCK_TIME_NONE;
vd->granulepos = -1;
vd->packetno = 0;
vd->discont = TRUE;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;

6
ext/vorbis/vorbisdec.h
View file

@ -64,10 +64,8 @@ struct _GstVorbisDec {
GList *queued;
gdouble segment_rate;
gint64 segment_start;
gint64 segment_stop;
gint64 segment_time;
GstSegment segment;
gboolean discont;
GstClockTime cur_timestamp; /* only used with non-ogg container formats */
GstClockTime prev_timestamp; /* only used with non-ogg container formats */