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flx plugin ported to 0.9

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Original commit message from CVS:
flx plugin ported to 0.9
This commit is contained in:
Zeeshan Ali 2005-10-16 21:19:44 +00:00
parent 3650ac0c24
commit e509e3980d
6 changed files with 185 additions and 157 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
2005-10-17 Zeeshan Ali <zeenix at gmail dot com>
* configure.ac:
* gst/flx/Makefile.am:
* gst/flx/gstflxdec.c: (gst_flxdec_init),
(gst_flxdec_src_event_handler), (gst_flxdec_sink_event_handler),
(gst_flxdec_chain), (gst_flxdec_change_state), (plugin_init):
* gst/flx/gstflxdec.h:
flx plugin ported to 0.9
2005-10-16 Thomas Vander Stichele <thomas at apestaart dot org>
* ext/shout2/gstshout2.c: (gst_shout2send_change_state):

2
common

@ -1 +1 @@
Subproject commit e3944a4eec91af24489896ba3674a16af37326ea
Subproject commit 3a9d355b657cf710011aa1eaadd64f6723527e14

1
configure.ac
View file

@ -603,6 +603,7 @@ gst/videobox/Makefile
gst/videofilter/Makefile
gst/wavenc/Makefile
gst/wavparse/Makefile
gst/flx/Makefile
ext/jpeg/Makefile
ext/Makefile
ext/aalib/Makefile

4
gst/flx/Makefile.am
View file

@ -1,8 +1,8 @@
plugin_LTLIBRARIES = libgstflxdec.la
libgstflxdec_la_SOURCES = gstflxdec.c flx_color.c
libgstflxdec_la_CFLAGS = $(GST_CFLAGS)
libgstflxdec_la_LIBADD = $(GST_LIBS)
libgstflxdec_la_CFLAGS = $(GST_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS)
libgstflxdec_la_LIBADD = $(GST_BASE_LIBS) $(GST_PLUGINS_BASE_LIBS)
libgstflxdec_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = flx_fmt.h flx_color.h gstflxdec.h

177
gst/flx/gstflxdec.c
View file

@ -36,7 +36,7 @@ static GstElementDetails flxdec_details = {
"FLX Decoder",
"Codec/Decoder/Audio",
"FLX decoder",
"Sepp Wijnands <mrrazz@garbage-coderz.net>"
"Sepp Wijnands <mrrazz@garbage-coderz.net>, Zeeshan Ali <zeenix@gmail.com>"
};
/* Flx signals and args */
@ -70,11 +70,14 @@ static void gst_flxdec_class_init (GstFlxDecClass * klass);
static void gst_flxdec_base_init (GstFlxDecClass * klass);
static void gst_flxdec_init (GstFlxDec * flxdec);
static void gst_flxdec_loop (GstElement * element);
static GstFlowReturn gst_flxdec_chain (GstPad * pad, GstBuffer * buf);
static GstStateChangeReturn gst_flxdec_change_state (GstElement * element,
GstStateChange transition);
static gboolean gst_flxdec_src_event_handler (GstPad * pad, GstEvent * event);
static gboolean gst_flxdec_sink_event_handler (GstPad * pad, GstEvent * event);
static void gst_flxdec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_flxdec_get_property (GObject * object, guint prop_id,
@ -145,8 +148,6 @@ gst_flxdec_class_init (GstFlxDecClass * klass)
gstelement_class->change_state = gst_flxdec_change_state;
}
static void
gst_flxdec_init (GstFlxDec * flxdec)
{
@ -154,17 +155,53 @@ gst_flxdec_init (GstFlxDec * flxdec)
gst_pad_new_from_template (gst_static_pad_template_get (&sink_factory),
"sink");
gst_element_add_pad (GST_ELEMENT (flxdec), flxdec->sinkpad);
gst_element_set_loop_function (GST_ELEMENT (flxdec), gst_flxdec_loop);
gst_pad_set_chain_function (flxdec->sinkpad, gst_flxdec_chain);
gst_pad_set_event_function (flxdec->sinkpad, gst_flxdec_sink_event_handler);
flxdec->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&src_video_factory), "src");
gst_element_add_pad (GST_ELEMENT (flxdec), flxdec->srcpad);
gst_pad_use_explicit_caps (flxdec->srcpad);
gst_pad_set_event_function (flxdec->srcpad, gst_flxdec_src_event_handler);
gst_pad_use_fixed_caps (flxdec->srcpad);
flxdec->bs = NULL;
flxdec->frame = NULL;
flxdec->delta = NULL;
flxdec->adapter = gst_adapter_new ();
}
static gboolean
gst_flxdec_src_event_handler (GstPad * pad, GstEvent * event)
{
GstFlxDec *flxdec = (GstFlxDec *) gst_pad_get_parent (pad);
g_return_val_if_fail (GST_IS_EVENT (event), FALSE);
/* TODO: implement the seek and other event handling */
return gst_pad_push_event (flxdec->sinkpad, event);
}
static gboolean
gst_flxdec_sink_event_handler (GstPad * pad, GstEvent * event)
{
GstFlxDec *flxdec = (GstFlxDec *) gst_pad_get_parent (pad);
g_return_val_if_fail (GST_IS_EVENT (event), FALSE);
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS ||
GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT)
GST_STREAM_LOCK (flxdec->srcpad);
gst_pad_push_event (flxdec->srcpad, gst_event_ref (event));
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS ||
GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT)
GST_STREAM_UNLOCK (flxdec->srcpad);
return TRUE;
}
static void
@ -411,68 +448,39 @@ flx_decode_delta_flc (GstFlxDec * flxdec, guchar * data, guchar * dest)
}
}
static GstBuffer *
flx_get_data (GstFlxDec * flxdec, gulong size)
static GstFlowReturn
gst_flxdec_chain (GstPad * pad, GstBuffer * buf)
{
GstBuffer *retbuf;
guint32 got_bytes;
g_return_val_if_fail (flxdec != NULL, NULL);
got_bytes = gst_bytestream_read (flxdec->bs, &retbuf, size);
if (got_bytes < size) {
GstEvent *event;
guint32 remaining;
gst_bytestream_get_status (flxdec->bs, &remaining, &event);
gst_pad_event_default (flxdec->sinkpad, event);
}
return retbuf;
}
static void
gst_flxdec_loop (GstElement * element)
{
GstBuffer *buf;
GstBuffer *databuf;
guchar *data, *chunk;
GstCaps *caps;
guint avail;
GstFlowReturn res = GST_FLOW_OK;
GstFlxDec *flxdec;
FlxHeader *flxh;
FlxFrameChunk *flxfh;
g_return_if_fail (element != NULL);
g_return_if_fail (GST_IS_FLXDEC (element));
g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR);
flxdec = (GstFlxDec *) gst_pad_get_parent (pad);
g_return_val_if_fail (flxdec != NULL, GST_FLOW_ERROR);
GST_DEBUG ("entering loop function");
flxdec = GST_FLXDEC (element);
gst_adapter_push (flxdec->adapter, buf);
avail = gst_adapter_available (flxdec->adapter);
if (flxdec->state == GST_FLXDEC_READ_HEADER) {
databuf = flx_get_data (flxdec, FlxHeaderSize);
if (avail >= FlxHeaderSize) {
const guint8 *data = gst_adapter_peek (flxdec->adapter, FlxHeaderSize);
if (!databuf) {
GST_LOG ("empty buffer");
return;
}
data = GST_BUFFER_DATA (databuf);
memcpy ((char *) &flxdec->hdr, data, sizeof (FlxHeader));
gst_buffer_unref (databuf);
memcpy ((gchar *) & flxdec->hdr, data, FlxHeaderSize);
gst_adapter_flush (flxdec->adapter, FlxHeaderSize);
flxh = &flxdec->hdr;
/* check header */
if (flxh->type != FLX_MAGICHDR_FLI &&
flxh->type != FLX_MAGICHDR_FLC && flxh->type != FLX_MAGICHDR_FLX) {
GST_ELEMENT_ERROR (element, STREAM, WRONG_TYPE, (NULL),
GST_ELEMENT_ERROR (flxdec, STREAM, WRONG_TYPE, (NULL),
("not a flx file (type %d)\n", flxh->type));
return;
return GST_FLOW_ERROR;
}
@ -495,10 +503,11 @@ gst_flxdec_loop (GstElement * element)
gst_caps_set_simple (caps,
"width", G_TYPE_INT, flxh->width,
"height", G_TYPE_INT, flxh->height,
"framerate", G_TYPE_DOUBLE, (gdouble) (GST_SECOND / flxdec->frame_time),
NULL);
"framerate", G_TYPE_DOUBLE,
(gdouble) (GST_SECOND / flxdec->frame_time), NULL);
gst_pad_set_explicit_caps (flxdec->srcpad, caps);
gst_pad_set_caps (flxdec->srcpad, caps);
gst_caps_unref (caps);
if (flxh->depth <= 8)
flxdec->converter =
@ -522,37 +531,44 @@ gst_flxdec_loop (GstElement * element)
GST_BUFFER_SIZE (flxdec->delta) = flxdec->size;
flxdec->state = GST_FLXDEC_PLAYING;
}
} else if (flxdec->state == GST_FLXDEC_PLAYING) {
GstBuffer *out;
databuf = flx_get_data (flxdec, FlxFrameChunkSize);
if (!databuf)
return;
flxfh = (FlxFrameChunk *) GST_BUFFER_DATA (databuf);
if (avail >= FlxFrameChunkSize) {
guchar *chunk = NULL;
guint to_flush = 0;
const guint8 *data =
gst_adapter_peek (flxdec->adapter, FlxFrameChunkSize);
flxfh = (FlxFrameChunk *) g_memdup (data, FlxFrameChunkSize);
switch (flxfh->id) {
case FLX_FRAME_TYPE:
buf = flx_get_data (flxdec, flxfh->size - FlxFrameChunkSize);
if (avail < flxfh->size) {
break;
}
chunk = GST_BUFFER_DATA (buf);
gst_adapter_flush (flxdec->adapter, FlxFrameChunkSize);
data = gst_adapter_peek (flxdec->adapter,
flxfh->size - FlxFrameChunkSize);
chunk = g_memdup (data, flxfh->size - FlxFrameChunkSize);
to_flush = flxfh->size - FlxFrameChunkSize;
if (((FlxFrameType *) chunk)->chunks == 0)
break;
/* create 32 bits output frame */
out = gst_buffer_new ();
GST_BUFFER_DATA (out) = g_malloc (flxdec->size * 4);
GST_BUFFER_SIZE (out) = flxdec->size * 4;
res = gst_pad_alloc_buffer (flxdec->srcpad,
GST_BUFFER_OFFSET_NONE,
flxdec->size * 4, GST_PAD_CAPS (flxdec->srcpad), &out);
if (res != GST_FLOW_OK)
break;
/* decode chunks */
flx_decode_chunks (flxdec,
((FlxFrameType *) chunk)->chunks,
GST_BUFFER_DATA (buf) + FlxFrameTypeSize,
GST_BUFFER_DATA (flxdec->frame));
/* destroy input buffer */
gst_buffer_unref (buf);
chunk + FlxFrameTypeSize, GST_BUFFER_DATA (flxdec->frame));
/* save copy of the current frame for possible delta. */
memcpy (GST_BUFFER_DATA (flxdec->delta),
@ -565,16 +581,21 @@ gst_flxdec_loop (GstElement * element)
GST_BUFFER_TIMESTAMP (out) = flxdec->next_time;
flxdec->next_time += flxdec->frame_time;
gst_pad_push (flxdec->srcpad, GST_DATA (out));
gst_pad_push (flxdec->srcpad, out);
break;
}
/* destroy header buffer */
gst_buffer_unref (databuf);
gst_adapter_flush (flxdec->adapter, to_flush);
if (chunk)
g_free (chunk);
g_free (flxfh);
}
}
return res;
}
static GstStateChangeReturn
gst_flxdec_change_state (GstElement * element, GstStateChange transition)
{
@ -586,7 +607,7 @@ gst_flxdec_change_state (GstElement * element, GstStateChange transition)
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
flxdec->bs = gst_bytestream_new (flxdec->sinkpad);
gst_adapter_clear (flxdec->adapter);
flxdec->state = GST_FLXDEC_READ_HEADER;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
@ -598,15 +619,14 @@ gst_flxdec_change_state (GstElement * element, GstStateChange transition)
flxdec->frame = NULL;
gst_buffer_unref (flxdec->delta);
flxdec->delta = NULL;
gst_bytestream_destroy (flxdec->bs);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
}
parent_class->change_state (element, transition);
return parent_class->change_state (element, transition);
return GST_STATE_CHANGE_SUCCESS;
//return GST_STATE_CHANGE_SUCCESS;
}
static void
@ -643,9 +663,6 @@ gst_flxdec_get_property (GObject * object, guint prop_id, GValue * value,
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_library_load ("gstbytestream"))
return FALSE;
return gst_element_register (plugin, "flxdec",
GST_RANK_PRIMARY, GST_TYPE_FLXDEC);
}

4
gst/flx/gstflxdec.h
View file

@ -23,7 +23,7 @@
#include <gst/gst.h>
#include "flx_color.h"
#include <gst/bytestream/bytestream.h>
#include <gst/base/gstadapter.h>
#ifdef __cplusplus
@ -47,7 +47,7 @@ struct _GstFlxDec {
gboolean active, new_meta;
GstBuffer *delta, *frame;
GstByteStream *bs;
GstAdapter *adapter;
gulong size;
GstFlxDecState state;
glong frame_time;