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ext/jpeg/gstjpegdec.*: Fix durations on outgoing buffers after seeking in MJPEG files (#334083); some minor clean-ups.

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Original commit message from CVS:
* ext/jpeg/gstjpegdec.c: (gst_jpeg_dec_class_init),
(gst_jpeg_dec_chain), (gst_jpeg_dec_change_state):
* ext/jpeg/gstjpegdec.h:
Fix durations on outgoing buffers after seeking
in MJPEG files (#334083); some minor clean-ups.
This commit is contained in:
Tim-Philipp Müller 2006-03-14 09:23:09 +00:00
parent dfa6de2b4a
commit 23b55c755d
3 changed files with 40 additions and 17 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2006-03-14 Tim-Philipp Müller <tim at centricular dot net>
* ext/jpeg/gstjpegdec.c: (gst_jpeg_dec_class_init),
(gst_jpeg_dec_chain), (gst_jpeg_dec_change_state):
* ext/jpeg/gstjpegdec.h:
Fix durations on outgoing buffers after seeking
in MJPEG files (#334083); some minor clean-ups.
2006-03-13 Wim Taymans <wim@fluendo.com>
* gst/wavparse/gstwavparse.c: (gst_wavparse_reset),

42
ext/jpeg/gstjpegdec.c
View file

@ -57,7 +57,7 @@ GST_STATIC_PAD_TEMPLATE ("sink",
G_STRINGIFY (MAX_HEIGHT) " ], " "framerate = (fraction) [ 0/1, MAX ]")
);
GST_DEBUG_CATEGORY (jpeg_dec_debug);
GST_DEBUG_CATEGORY_STATIC (jpeg_dec_debug);
#define GST_CAT_DEFAULT jpeg_dec_debug
/* These macros are adapted from videotestsrc.c
@ -144,7 +144,9 @@ gst_jpeg_dec_class_init (GstJpegDecClass * klass)
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = gst_jpeg_dec_finalize;
gstelement_class->change_state = gst_jpeg_dec_change_state;
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_jpeg_dec_change_state);
GST_DEBUG_CATEGORY_INIT (jpeg_dec_debug, "jpegdec", 0, "JPEG decoder");
}
@ -708,6 +710,13 @@ gst_jpeg_dec_chain (GstPad * pad, GstBuffer * buf)
dec = GST_JPEG_DEC (GST_OBJECT_PARENT (pad));
timestamp = GST_BUFFER_TIMESTAMP (buf);
duration = GST_BUFFER_DURATION (buf);
/*
GST_LOG_OBJECT (dec, "Received buffer: %d bytes, ts=%" GST_TIME_FORMAT
", dur=%" GST_TIME_FORMAT, GST_BUFFER_SIZE (buf),
GST_TIME_ARGS (timestamp), GST_TIME_ARGS (duration));
*/
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
dec->next_ts = timestamp;
@ -824,15 +833,18 @@ gst_jpeg_dec_chain (GstPad * pad, GstBuffer * buf)
outdata = GST_BUFFER_DATA (outbuf);
GST_BUFFER_TIMESTAMP (outbuf) = dec->next_ts;
if (dec->packetized && dec->framerate_numerator != 0) {
GstClockTime next_ts;
dec->frames_decoded++;
next_ts = gst_util_uint64_scale (dec->frames_decoded,
GST_SECOND * dec->framerate_denominator, dec->framerate_numerator);
duration = next_ts - dec->next_ts;
dec->next_ts = next_ts;
if (dec->packetized && GST_CLOCK_TIME_IS_VALID (dec->next_ts)) {
if (GST_CLOCK_TIME_IS_VALID (duration)) {
/* use duration from incoming buffer for outgoing buffer */
dec->next_ts += duration;
} else if (dec->framerate_numerator != 0) {
duration = gst_util_uint64_scale (GST_SECOND,
dec->framerate_denominator, dec->framerate_numerator);
dec->next_ts += duration;
} else {
duration = GST_CLOCK_TIME_NONE;
dec->next_ts = GST_CLOCK_TIME_NONE;
}
} else {
duration = GST_CLOCK_TIME_NONE;
dec->next_ts = GST_CLOCK_TIME_NONE;
@ -874,7 +886,10 @@ gst_jpeg_dec_chain (GstPad * pad, GstBuffer * buf)
GST_LOG_OBJECT (dec, "decompressing finished");
jpeg_finish_decompress (&dec->cinfo);
GST_LOG_OBJECT (dec, "pushing buffer");
GST_LOG_OBJECT (dec, "pushing buffer (ts=%" GST_TIME_FORMAT ", dur=%"
GST_TIME_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (outbuf)));
ret = gst_pad_push (dec->srcpad, outbuf);
done:
@ -942,7 +957,6 @@ gst_jpeg_dec_change_state (GstElement * element, GstStateChange transition)
dec->framerate_numerator = 0;
dec->framerate_denominator = 1;
dec->caps_framerate_numerator = dec->caps_framerate_denominator = 0;
dec->frames_decoded = 0;
dec->caps_width = -1;
dec->caps_height = -1;
dec->packetized = FALSE;
@ -952,6 +966,8 @@ gst_jpeg_dec_change_state (GstElement * element, GstStateChange transition)
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret != GST_STATE_CHANGE_SUCCESS)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:

7
ext/jpeg/gstjpegdec.h
View file

@ -38,10 +38,10 @@ G_BEGIN_DECLS
#define GST_JPEG_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_JPEG_DEC,GstJpegDec))
#define GST_JPEG_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_JPEG_DEC,GstJpegDec))
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_JPEG_DEC,GstJpegDecClass))
#define GST_IS_JPEG_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_JPEG_DEC))
#define GST_IS_JPEG_DEC_CLASS(obj) \
#define GST_IS_JPEG_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_JPEG_DEC))
typedef struct _GstJpegDec GstJpegDec;
@ -72,13 +72,12 @@ struct _GstJpegDec {
/* TRUE if each input buffer contains a whole jpeg image */
gboolean packetized;
/* the timestamp of the next frame */
/* the (expected) timestamp of the next frame */
guint64 next_ts;
/* video state */
gint framerate_numerator;
gint framerate_denominator;
gint frames_decoded;
/* negotiated state */
gint caps_framerate_numerator;