"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 */
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,
gstelement_class->change_state = gst_flxdec_change_state;
}
-
-
static void
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
}
}
-static GstBuffer *
-flx_get_data (GstFlxDec * flxdec, gulong size)
-{
- 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)
+static GstFlowReturn
+gst_flxdec_chain (GstPad * pad, GstBuffer * buf)
{
- 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 (!databuf) {
- GST_LOG ("empty buffer");
- return;
- }
+ if (avail >= FlxHeaderSize) {
+ const guint8 *data = gst_adapter_peek (flxdec->adapter, FlxHeaderSize);
- data = GST_BUFFER_DATA (databuf);
+ memcpy ((gchar *) & flxdec->hdr, data, FlxHeaderSize);
+ gst_adapter_flush (flxdec->adapter, FlxHeaderSize);
- memcpy ((char *) &flxdec->hdr, data, sizeof (FlxHeader));
+ flxh = &flxdec->hdr;
- gst_buffer_unref (databuf);
-
- 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),
- ("not a flx file (type %d)\n", flxh->type));
- return;
- }
+ /* check header */
+ if (flxh->type != FLX_MAGICHDR_FLI &&
+ flxh->type != FLX_MAGICHDR_FLC && flxh->type != FLX_MAGICHDR_FLX) {
+ GST_ELEMENT_ERROR (flxdec, STREAM, WRONG_TYPE, (NULL),
+ ("not a flx file (type %d)\n", flxh->type));
+ return GST_FLOW_ERROR;
+ }
- GST_LOG ("size : %d\n", flxh->size);
- GST_LOG ("frames : %d\n", flxh->frames);
- GST_LOG ("width : %d\n", flxh->width);
- GST_LOG ("height : %d\n", flxh->height);
- GST_LOG ("depth : %d\n", flxh->depth);
- GST_LOG ("speed : %d\n", flxh->speed);
+ GST_LOG ("size : %d\n", flxh->size);
+ GST_LOG ("frames : %d\n", flxh->frames);
+ GST_LOG ("width : %d\n", flxh->width);
+ GST_LOG ("height : %d\n", flxh->height);
+ GST_LOG ("depth : %d\n", flxh->depth);
+ GST_LOG ("speed : %d\n", flxh->speed);
- flxdec->next_time = 0;
+ flxdec->next_time = 0;
- if (flxh->type == FLX_MAGICHDR_FLI) {
- flxdec->frame_time = JIFFIE * flxh->speed;
- } else {
- flxdec->frame_time = flxh->speed * GST_MSECOND;
- }
+ if (flxh->type == FLX_MAGICHDR_FLI) {
+ flxdec->frame_time = JIFFIE * flxh->speed;
+ } else {
+ flxdec->frame_time = flxh->speed * GST_MSECOND;
+ }
- caps = gst_caps_from_string (GST_VIDEO_CAPS_xRGB_HOST_ENDIAN);
- 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);
+ caps = gst_caps_from_string (GST_VIDEO_CAPS_xRGB_HOST_ENDIAN);
+ 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);
+
+ gst_pad_set_caps (flxdec->srcpad, caps);
+ gst_caps_unref (caps);
+
+ if (flxh->depth <= 8)
+ flxdec->converter =
+ flx_colorspace_converter_new (flxh->width, flxh->height);
+
+ if (flxh->type == FLX_MAGICHDR_FLC || flxh->type == FLX_MAGICHDR_FLX) {
+ GST_LOG ("(FLC) aspect_dx : %d\n", flxh->aspect_dx);
+ GST_LOG ("(FLC) aspect_dy : %d\n", flxh->aspect_dy);
+ GST_LOG ("(FLC) oframe1 : 0x%08x\n", flxh->oframe1);
+ GST_LOG ("(FLC) oframe2 : 0x%08x\n", flxh->oframe2);
+ }
- gst_pad_set_explicit_caps (flxdec->srcpad, caps);
+ flxdec->size = (flxh->width * flxh->height);
- if (flxh->depth <= 8)
- flxdec->converter =
- flx_colorspace_converter_new (flxh->width, flxh->height);
+ /* create delta and output frame */
+ flxdec->frame = gst_buffer_new ();
+ flxdec->delta = gst_buffer_new ();
+ GST_BUFFER_DATA (flxdec->frame) = g_malloc (flxdec->size);
+ GST_BUFFER_SIZE (flxdec->frame) = flxdec->size;
+ GST_BUFFER_DATA (flxdec->delta) = g_malloc (flxdec->size);
+ GST_BUFFER_SIZE (flxdec->delta) = flxdec->size;
- if (flxh->type == FLX_MAGICHDR_FLC || flxh->type == FLX_MAGICHDR_FLX) {
- GST_LOG ("(FLC) aspect_dx : %d\n", flxh->aspect_dx);
- GST_LOG ("(FLC) aspect_dy : %d\n", flxh->aspect_dy);
- GST_LOG ("(FLC) oframe1 : 0x%08x\n", flxh->oframe1);
- GST_LOG ("(FLC) oframe2 : 0x%08x\n", flxh->oframe2);
+ flxdec->state = GST_FLXDEC_PLAYING;
}
-
- flxdec->size = (flxh->width * flxh->height);
-
- /* create delta and output frame */
- flxdec->frame = gst_buffer_new ();
- flxdec->delta = gst_buffer_new ();
- GST_BUFFER_DATA (flxdec->frame) = g_malloc (flxdec->size);
- GST_BUFFER_SIZE (flxdec->frame) = flxdec->size;
- GST_BUFFER_DATA (flxdec->delta) = g_malloc (flxdec->size);
- 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);
-
- switch (flxfh->id) {
- case FLX_FRAME_TYPE:
- buf = flx_get_data (flxdec, flxfh->size - FlxFrameChunkSize);
-
- chunk = GST_BUFFER_DATA (buf);
-
- if (((FlxFrameType *) chunk)->chunks == 0)
+ 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:
+ if (avail < flxfh->size) {
+ break;
+ }
+
+ 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 */
+ 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,
+ chunk + FlxFrameTypeSize, GST_BUFFER_DATA (flxdec->frame));
+
+ /* save copy of the current frame for possible delta. */
+ memcpy (GST_BUFFER_DATA (flxdec->delta),
+ GST_BUFFER_DATA (flxdec->frame), GST_BUFFER_SIZE (flxdec->delta));
+
+ /* convert current frame. */
+ flx_colorspace_convert (flxdec->converter,
+ GST_BUFFER_DATA (flxdec->frame), GST_BUFFER_DATA (out));
+
+ GST_BUFFER_TIMESTAMP (out) = flxdec->next_time;
+ flxdec->next_time += flxdec->frame_time;
+
+ gst_pad_push (flxdec->srcpad, out);
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;
-
- /* 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);
-
- /* save copy of the current frame for possible delta. */
- memcpy (GST_BUFFER_DATA (flxdec->delta),
- GST_BUFFER_DATA (flxdec->frame), GST_BUFFER_SIZE (flxdec->delta));
-
- /* convert current frame. */
- flx_colorspace_convert (flxdec->converter,
- GST_BUFFER_DATA (flxdec->frame), GST_BUFFER_DATA (out));
-
- GST_BUFFER_TIMESTAMP (out) = flxdec->next_time;
- flxdec->next_time += flxdec->frame_time;
-
- gst_pad_push (flxdec->srcpad, GST_DATA (out));
+ gst_adapter_flush (flxdec->adapter, to_flush);
- break;
+ if (chunk)
+ g_free (chunk);
+ g_free (flxfh);
}
-
- /* destroy header buffer */
- gst_buffer_unref (databuf);
}
+
+ return res;
}
static GstStateChangeReturn
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:
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
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);
}
projects / platform / upstream / gst-plugins-good.git / commitdiff