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resindvd: Modify the segment update logic

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Send segment updates to the audio and subpicture pads more frequently,
but less often to the video pad, where timestamps appear less often.
This helps with gap filling on some DVDs.
This commit is contained in:
Jan Schmidt 2009-05-11 17:50:41 +01:00
parent d7cabb0801
commit 11a7e37325
2 changed files with 11 additions and 2 deletions
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12
ext/resindvd/gstmpegdemux.c
View file

@ -28,7 +28,8 @@
#include "gstmpegdefs.h"
#include "gstmpegdemux.h"
#define SEGMENT_THRESHOLD (GST_SECOND/2)
#define SEGMENT_THRESHOLD (300*GST_MSECOND)
#define VIDEO_SEGMENT_THRESHOLD (500*GST_MSECOND)
/* The SCR_MUNGE value is used to offset the scr_adjust value, to avoid
* ever generating a negative timestamp */
@ -248,6 +249,7 @@ gst_flups_demux_create_stream (GstFluPSDemux * demux, gint id, gint stream_type)
gchar *name;
GstFluPSDemuxClass *klass = GST_FLUPS_DEMUX_GET_CLASS (demux);
GstCaps *caps;
GstClockTime threshold = SEGMENT_THRESHOLD;
name = NULL;
template = NULL;
@ -277,6 +279,7 @@ gst_flups_demux_create_stream (GstFluPSDemux * demux, gint id, gint stream_type)
caps = gst_caps_new_simple ("video/mpeg",
"mpegversion", G_TYPE_INT, mpeg_version,
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
threshold = VIDEO_SEGMENT_THRESHOLD;
break;
}
case ST_AUDIO_MPEG1:
@ -296,6 +299,7 @@ gst_flups_demux_create_stream (GstFluPSDemux * demux, gint id, gint stream_type)
template = klass->video_template;
name = g_strdup_printf ("video_%02x", id);
caps = gst_caps_new_simple ("video/x-h264", NULL);
threshold = VIDEO_SEGMENT_THRESHOLD;
break;
case ST_PS_AUDIO_AC3:
template = klass->audio_template;
@ -335,6 +339,7 @@ gst_flups_demux_create_stream (GstFluPSDemux * demux, gint id, gint stream_type)
stream->notlinked = FALSE;
stream->type = stream_type;
stream->pad = gst_pad_new_from_template (template, name);
stream->segment_thresh = threshold;
gst_pad_set_event_function (stream->pad, gst_flups_demux_src_event);
gst_pad_set_query_function (stream->pad, gst_flups_demux_src_query);
gst_pad_use_fixed_caps (stream->pad);
@ -487,11 +492,14 @@ gst_flups_demux_send_segment_updates (GstFluPSDemux * demux,
if (stream->last_ts == GST_CLOCK_TIME_NONE ||
stream->last_ts < demux->src_segment.start)
stream->last_ts = demux->src_segment.start;
if (stream->last_ts + SEGMENT_THRESHOLD < new_time) {
if (stream->last_ts + stream->segment_thresh < new_time) {
#if 0
g_print ("Segment update to pad %s time %" GST_TIME_FORMAT "\n",
GST_PAD_NAME (stream->pad), GST_TIME_ARGS (new_time));
#endif
GST_DEBUG_OBJECT (demux,
"Segment update to pad %s time %" GST_TIME_FORMAT,
GST_PAD_NAME (stream->pad), GST_TIME_ARGS (new_time));
if (event == NULL) {
event = gst_event_new_new_segment_full (TRUE,
demux->src_segment.rate, demux->src_segment.applied_rate,

1
ext/resindvd/gstmpegdemux.h
View file

@ -64,6 +64,7 @@ struct _GstFluPSStream {
gboolean need_segment;
GstClockTime last_ts;
GstClockTime segment_thresh;
};
struct _GstFluPSDemux {