static void
gst_overlay_loop (GstElement * element)
{
GstOverlay *overlay;
GstBuffer *out;
GstBuffer *in1 = NULL, *in2 = NULL, *in3 = NULL;
int size;
overlay = GST_OVERLAY (element);
in1 = GST_BUFFER (gst_pad_pull (overlay->sinkpad1));
if (GST_IS_EVENT (in1)) {
gst_pad_push (overlay->srcpad, GST_DATA (in1));
/* FIXME */
return;
}
in2 = GST_BUFFER (gst_pad_pull (overlay->sinkpad2));
if (GST_IS_EVENT (in2)) {
gst_pad_push (overlay->srcpad, GST_DATA (in2));
/* FIXME */
return;
}
in3 = GST_BUFFER (gst_pad_pull (overlay->sinkpad3));
if (GST_IS_EVENT (in3)) {
gst_pad_push (overlay->srcpad, GST_DATA (in3));
/* FIXME */
return;
}
g_return_if_fail (in1 != NULL);
g_return_if_fail (in2 != NULL);
g_return_if_fail (in3 != NULL);
size = (overlay->width * overlay->height * 3) / 2;
g_return_if_fail (GST_BUFFER_SIZE (in1) != size);
g_return_if_fail (GST_BUFFER_SIZE (in2) != size);
g_return_if_fail (GST_BUFFER_SIZE (in3) != size);
out = gst_buffer_new_and_alloc (size);
gst_overlay_blend_i420 (GST_BUFFER_DATA (out),
GST_BUFFER_DATA (in1),
GST_BUFFER_DATA (in2),
GST_BUFFER_DATA (in3), overlay->width, overlay->height);
GST_BUFFER_TIMESTAMP (out) = GST_BUFFER_TIMESTAMP (in1);
GST_BUFFER_DURATION (out) = GST_BUFFER_DURATION (in1);
gst_buffer_unref (in1);
gst_buffer_unref (in2);
gst_buffer_unref (in3);
gst_pad_push (overlay->srcpad, GST_DATA (out));
}
/** GstXineInput ***********************************************************/
enum
{
ARG_0,
ARG_LOCATION
};
GST_BOILERPLATE (GstXineInput, gst_xine_input, GstXine, GST_TYPE_XINE);
static void gst_xine_input_dispose (GObject * object);
static void gst_xine_input_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_xine_input_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn
gst_xine_input_change_state (GstElement * element, GstStateChange transition);
static void
gst_xine_input_base_init (gpointer g_class)
{
}
static void
gst_xine_input_class_init (GstXineInputClass * klass)
{
GstElementClass *element = GST_ELEMENT_CLASS (klass);
GObjectClass *object = G_OBJECT_CLASS (klass);
element->change_state = gst_xine_input_change_state;
object->set_property = gst_xine_input_set_property;
object->get_property = gst_xine_input_get_property;
object->dispose = gst_xine_input_dispose;
g_object_class_install_property (object, ARG_LOCATION,
g_param_spec_string ("location", "location", "location",
NULL, G_PARAM_READWRITE));
}
static void
gst_xine_input_init (GstXineInput * xine, GstXineInputClass * g_class)
{
}
static void
gst_xine_input_dispose (GObject * object)
{
GstXineInput *xine = GST_XINE_INPUT (object);
g_free (xine->location);
xine->location = NULL;
GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
}
static void
gst_xine_input_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstXineInput *xine = GST_XINE_INPUT (object);
switch (prop_id) {
case ARG_LOCATION:
if (gst_element_get_state (GST_ELEMENT (xine)) != GST_STATE_NULL)
return;
if (xine->location)
g_free (xine->location);
xine->location = g_strdup (g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
return;
}
}
static void
gst_xine_input_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstXineInput *xine = GST_XINE_INPUT (object);
switch (prop_id) {
case ARG_LOCATION:
g_value_set_string (value, xine->location);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
return;
}
}
#define BUFFER_SIZE 4096 /* FIXME: what size? */
static GstData *
gst_xine_input_get (GstPad * pad)
{
GstXineInput *xine =
GST_XINE_INPUT (gst_object_get_parent (GST_OBJECT (pad)));
GstBuffer *buf;
gint real_size, position;
/* FIXME: how does xine figure out EOS? */
position = xine->input->get_current_pos (xine->input);
if (position > 0 && position == xine->input->get_length (xine->input)) {
gst_element_set_eos (GST_ELEMENT (xine));
return GST_DATA (gst_event_new (GST_EVENT_EOS));
}
buf =
gst_pad_alloc_buffer_and_set_caps (xine->srcpad, GST_BUFFER_OFFSET_NONE,
xine->blocksize);
GST_BUFFER_OFFSET (buf) = position;
real_size =
xine->input->read (xine->input, GST_BUFFER_DATA (buf),
GST_BUFFER_MAXSIZE (buf));
GST_BUFFER_SIZE (buf) = real_size;
if (real_size < 0) {
GST_ELEMENT_ERROR (xine, RESOURCE, READ, (NULL), ("error %d reading data",
real_size));
gst_data_unref (GST_DATA (buf));
return NULL;
} else if (real_size == 0) {
buf_element_t *element;
if (xine->input->get_capabilities (xine->input) & INPUT_CAP_BLOCK)
element =
xine->input->read_block (xine->input,
gst_xine_get_stream (GST_XINE (xine))->audio_fifo, xine->blocksize);
if (element == NULL) {
/* FIXME: is this EOS? */
gst_element_set_eos (GST_ELEMENT (xine));
return GST_DATA (gst_event_new (GST_EVENT_EOS));
} else {
GST_BUFFER_SIZE (buf) = element->size;
/* FIXME: put buf_element_t data in buffer */
memcpy (GST_BUFFER_DATA (buf), element->mem, element->size);
element->free_buffer (element);
}
}
GST_BUFFER_OFFSET_END (buf) = xine->input->get_current_pos (xine->input);
return GST_DATA (buf);
}
static void
gst_mikmod_loop (GstElement * element)
{
GstMikMod *mikmod;
GstBuffer *buffer_in;
g_return_if_fail (element != NULL);
g_return_if_fail (GST_IS_MIKMOD (element));
mikmod = GST_MIKMOD (element);
srcpad = mikmod->srcpad;
mikmod->Buffer = NULL;
if (!mikmod->initialized) {
while ((buffer_in = GST_BUFFER (gst_pad_pull (mikmod->sinkpad)))) {
if (GST_IS_EVENT (buffer_in)) {
GstEvent *event = GST_EVENT (buffer_in);
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS)
break;
} else {
if (mikmod->Buffer) {
mikmod->Buffer = gst_buffer_append (mikmod->Buffer, buffer_in);
} else {
mikmod->Buffer = buffer_in;
}
}
}
if (!GST_PAD_CAPS (mikmod->srcpad)) {
if (GST_PAD_LINK_SUCCESSFUL (gst_pad_renegotiate (mikmod->srcpad))) {
GST_ELEMENT_ERROR (mikmod, CORE, NEGOTIATION, (NULL), (NULL));
return;
}
}
MikMod_RegisterDriver (&drv_gst);
MikMod_RegisterAllLoaders ();
MikMod_Init ("");
reader = GST_READER_new (mikmod);
module = Player_LoadGeneric (reader, 64, 0);
gst_buffer_unref (mikmod->Buffer);
if (!Player_Active ())
Player_Start (module);
mikmod->initialized = TRUE;
}
if (Player_Active ()) {
timestamp = (module->sngtime / 1024.0) * GST_SECOND;
drv_gst.Update ();
} else {
gst_element_set_eos (GST_ELEMENT (mikmod));
gst_pad_push (mikmod->srcpad, GST_DATA (gst_event_new (GST_EVENT_EOS)));
}
}
static void
gst_tarkinenc_setup (TarkinEnc * tarkinenc)
{
gint i;
GstBuffer *outbuf;
ogg_stream_init (&tarkinenc->os, 1);
tarkin_info_init (&tarkinenc->ti);
tarkinenc->ti.inter.numerator = 1;
tarkinenc->ti.inter.denominator = 1;
tarkin_comment_init (&tarkinenc->tc);
tarkin_comment_add_tag (&tarkinenc->tc, "TITLE", "GStreamer produced file");
tarkin_comment_add_tag (&tarkinenc->tc, "ARTIST", "C coders ;)");
tarkinenc->tarkin_stream = tarkin_stream_new ();
tarkin_analysis_init (tarkinenc->tarkin_stream,
&tarkinenc->ti, free_frame, packet_out, (void *) tarkinenc);
tarkin_analysis_add_layer (tarkinenc->tarkin_stream, &tarkinenc->layer[0]);
tarkin_analysis_headerout (tarkinenc->tarkin_stream, &tarkinenc->tc,
tarkinenc->op, &tarkinenc->op[1], &tarkinenc->op[2]);
for (i = 0; i < 3; i++) {
ogg_stream_packetin (&tarkinenc->os, &tarkinenc->op[i]);
}
ogg_stream_flush (&tarkinenc->os, &tarkinenc->og);
tarkinenc->frame_num = 0;
outbuf = gst_buffer_new ();
GST_BUFFER_DATA (outbuf) = tarkinenc->og.header;
GST_BUFFER_SIZE (outbuf) = tarkinenc->og.header_len;
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_DONTFREE);
gst_pad_push (tarkinenc->srcpad, GST_DATA (outbuf));
outbuf = gst_buffer_new ();
GST_BUFFER_DATA (outbuf) = tarkinenc->og.body;
GST_BUFFER_SIZE (outbuf) = tarkinenc->og.body_len;
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_DONTFREE);
gst_pad_push (tarkinenc->srcpad, GST_DATA (outbuf));
tarkinenc->setup = TRUE;
}
static void
write_metadata (GstWavEnc * wavenc)
{
GString *info_str;
GList *props;
int total = 4;
gboolean need_to_write = FALSE;
info_str = g_string_new ("LIST INFO");
for (props = wavenc->metadata->properties->properties; props;
props = props->next) {
GstPropsEntry *entry = props->data;
const char *name;
guint32 id;
name = gst_props_entry_get_name (entry);
id = get_id_from_name (name);
if (id != 0) {
const char *text;
char *tmp;
int len, req, i;
need_to_write = TRUE; /* We've got at least one entry */
gst_props_entry_get_string (entry, &text);
len = strlen (text) + 1; /* The length in the file includes the \0 */
tmp = g_strdup_printf ("%" GST_FOURCC_FORMAT "%d%s", GST_FOURCC_ARGS (id),
GUINT32_TO_LE (len), text);
g_string_append (info_str, tmp);
g_free (tmp);
/* Check that we end on an even boundary */
req = ((len + 8) + 1) & ~1;
for (i = 0; i < req - len; i++) {
g_string_append_printf (info_str, "%c", 0);
}
total += req;
}
}
if (need_to_write) {
GstBuffer *buf;
/* Now we've got all the strings together, we can write our length in */
info_str->str[4] = GUINT32_TO_LE (total);
buf = gst_buffer_new ();
gst_buffer_set_data (buf, info_str->str, info_str->len);
gst_pad_push (wavenc->srcpad, GST_DATA (buf));
g_string_free (info_str, FALSE);
}
}
static void
gst_xine_audio_sink_chain (GstPad * pad, GstData * data)
{
GstXineAudioSink *xine =
GST_XINE_AUDIO_SINK (gst_object_get_parent (GST_OBJECT (pad)));
while (xine->driver->write (xine->driver, (guint16 *) GST_BUFFER_DATA (data),
GST_BUFFER_SIZE (data) / xine->open) == 0);
gst_data_unref (GST_DATA (data));
}
static void
gst_rfc2250_enc_new_buffer (GstRFC2250Enc * enc)
{
if (enc->packet) {
gst_pad_push (enc->srcpad, GST_DATA (enc->packet));
}
enc->packet = gst_buffer_new ();
enc->flags = 0;
enc->remaining = enc->MTU;
}
static GstData *
gst_v4ljpegsrc_get (GstPad * pad)
{
GstV4lJpegSrc *v4ljpegsrc;
GstV4lSrc *v4lsrc;
GstData *data;
GstBuffer *buf;
GstBuffer *outbuf;
int jpeg_size;
g_return_val_if_fail (pad != NULL, NULL);
v4ljpegsrc = GST_V4LJPEGSRC (gst_pad_get_parent (pad));
v4lsrc = GST_V4LSRC (v4ljpegsrc);
/* Fetch from the v4lsrc class get fn. */
data = v4ljpegsrc->getfn (pad);
/* If not a buffer, return it unchanged */
if (!data || (!GST_IS_BUFFER (data)))
return data;
buf = GST_BUFFER (data);
/* Confirm that the buffer contains jpeg data */
/*
* Create a new subbuffer from the jpeg data
* The first 2 bytes in the buffer are the size of the jpeg data
*/
if (GST_BUFFER_SIZE (buf) > 2) {
jpeg_size = (int) (GST_READ_UINT16_LE (GST_BUFFER_DATA (buf))) * 8;
} else
jpeg_size = 0;
/* Check that the size is sensible */
if ((jpeg_size <= 0) || (jpeg_size > GST_BUFFER_SIZE (buf) - 2)) {
GST_ELEMENT_ERROR (v4ljpegsrc, STREAM, FORMAT, (NULL),
("Invalid non-jpeg frame from camera"));
return NULL;
}
GST_DEBUG_OBJECT (v4ljpegsrc, "Creating JPEG subbuffer of size %d",
jpeg_size);
outbuf = gst_buffer_create_sub (buf, 2, jpeg_size);
/* Copy timestamps onto the subbuffer */
gst_buffer_stamp (outbuf, buf);
/* Release the main buffer */
gst_buffer_unref (buf);
return GST_DATA (outbuf);
}
static void
write_cues (GstWavEnc * wavenc)
{
GString *cue_string, *point_string;
GstBuffer *buf;
GList *cue_list, *c;
int num_cues, total = 4;
if (gst_props_get (wavenc->metadata->properties,
"cues", &cue_list, NULL) == FALSE) {
/* No cues, move along please, nothing to see here */
return;
}
/* Space for 'cue ', chunk size and number of cuepoints */
cue_string = g_string_new ("cue ");
#define CUEPOINT_SIZE 24
point_string = g_string_sized_new (CUEPOINT_SIZE);
for (c = cue_list, num_cues = 0; c; c = c->next, num_cues++) {
GstCaps *cue_caps = c->data;
guint32 pos;
gst_props_get (cue_caps->properties, "position", &pos, NULL);
point_string->str[0] = GUINT32_TO_LE (num_cues + 1);
point_string->str[4] = GUINT32_TO_LE (0);
/* Fixme: There is probably a macro for this */
point_string->str[8] = 'd';
point_string->str[9] = 'a';
point_string->str[10] = 't';
point_string->str[11] = 'a';
point_string->str[12] = GUINT32_TO_LE (0);
point_string->str[16] = GUINT32_TO_LE (0);
point_string->str[20] = GUINT32_TO_LE (pos);
total += CUEPOINT_SIZE;
}
/* Set the length and chunk size */
cue_string->str[4] = GUINT32_TO_LE (total);
cue_string->str[8] = GUINT32_TO_LE (num_cues);
/* Stick the cue points on the end */
g_string_append (cue_string, point_string->str);
g_string_free (point_string, TRUE);
buf = gst_buffer_new ();
gst_buffer_set_data (buf, cue_string->str, cue_string->len);
gst_pad_push (wavenc->srcpad, GST_DATA (buf));
g_string_free (cue_string, FALSE);
}
TarkinError
packet_out (void *stream, ogg_packet * op)
{
ogg_page og;
TarkinStream *s = stream;
TarkinEnc *te = s->user_ptr;
GstBuffer *outbuf;
ogg_stream_packetin (&te->os, op);
if (op->e_o_s) {
ogg_stream_flush (&te->os, &og);
outbuf = gst_buffer_new ();
GST_BUFFER_DATA (outbuf) = og.header;
GST_BUFFER_SIZE (outbuf) = og.header_len;
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_DONTFREE);
gst_pad_push (te->srcpad, GST_DATA (outbuf));
outbuf = gst_buffer_new ();
GST_BUFFER_DATA (outbuf) = og.body;
GST_BUFFER_SIZE (outbuf) = og.body_len;
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_DONTFREE);
gst_pad_push (te->srcpad, GST_DATA (outbuf));
} else {
while (ogg_stream_pageout (&te->os, &og)) {
outbuf = gst_buffer_new ();
GST_BUFFER_DATA (outbuf) = og.header;
GST_BUFFER_SIZE (outbuf) = og.header_len;
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_DONTFREE);
gst_pad_push (te->srcpad, GST_DATA (outbuf));
outbuf = gst_buffer_new ();
GST_BUFFER_DATA (outbuf) = og.body;
GST_BUFFER_SIZE (outbuf) = og.body_len;
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_DONTFREE);
gst_pad_push (te->srcpad, GST_DATA (outbuf));
}
}
return (TARKIN_OK);
}
void
gst_vbidec_show_text (GstVBIDec * vbidec, char *text, int len)
{
//fprintf(stderr, "%*s\n", len, text);
if (len > 0) {
if (GST_PAD_IS_USABLE (vbidec->srcpad)) {
GstBuffer *buf = gst_buffer_new_and_alloc (len);
memcpy (GST_BUFFER_DATA (buf), text, len);
GST_BUFFER_SIZE (buf) = len;
// FIXME
//GST_BUFFER_TIMESTAMP (buf) = vbidec->...
//...
//fprintf(stderr, "vbi text pushed\n");
gst_pad_push (vbidec->srcpad, GST_DATA (buf));
}
}
}
static void
gst_rtjpegdec_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstRTJpegDec *rtjpegdec;
guchar *data;
gulong size;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
rtjpegdec = GST_RTJPEGDEC (GST_OBJECT_PARENT (pad));
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
g_warning ("would be encoding frame here\n");
gst_pad_push (rtjpegdec->srcpad, GST_DATA (buf));
}
static void
gst_hermes_colorspace_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstHermesColorspace *space;
GstBuffer *outbuf = NULL;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
space = GST_HERMES_COLORSPACE (gst_pad_get_parent (pad));
g_return_if_fail (space != NULL);
g_return_if_fail (GST_IS_COLORSPACE (space));
if (space->passthru) {
gst_pad_push (space->srcpad, _data);
return;
}
if (GST_BUFFER_SIZE (buf) < space->sink_size) {
g_critical ("input size is smaller than expected");
}
outbuf =
gst_pad_alloc_buffer_and_set_caps (space->srcpad, GST_BUFFER_OFFSET_NONE,
space->src_size);
Hermes_ConverterCopy (space->h_handle,
GST_BUFFER_DATA (buf), 0, 0, space->width, space->height,
space->sink_stride, GST_BUFFER_DATA (outbuf), 0, 0,
space->width, space->height, space->src_stride);
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
gst_buffer_unref (buf);
gst_pad_push (space->srcpad, GST_DATA (outbuf));
}
static void
gst_rfc2250_enc_loop (GstElement * element)
{
GstRFC2250Enc *enc = GST_RFC2250_ENC (element);
GstData *data;
guint id;
gboolean mpeg2;
data = gst_mpeg_packetize_read (enc->packetize);
id = GST_MPEG_PACKETIZE_ID (enc->packetize);
mpeg2 = GST_MPEG_PACKETIZE_IS_MPEG2 (enc->packetize);
if (GST_IS_BUFFER (data)) {
GstBuffer *buffer = GST_BUFFER (data);
GST_DEBUG ("rfc2250enc: have chunk 0x%02X", id);
switch (id) {
case SEQUENCE_START_CODE:
gst_rfc2250_enc_new_buffer (enc);
enc->flags |= ENC_HAVE_SEQ;
break;
case GOP_START_CODE:
if (enc->flags & ENC_HAVE_DATA) {
gst_rfc2250_enc_new_buffer (enc);
}
enc->flags |= ENC_HAVE_GOP;
break;
case PICTURE_START_CODE:
if (enc->flags & ENC_HAVE_DATA) {
gst_rfc2250_enc_new_buffer (enc);
}
enc->flags |= ENC_HAVE_PIC;
break;
case EXT_START_CODE:
case USER_START_CODE:
case SEQUENCE_ERROR_START_CODE:
case SEQUENCE_END_START_CODE:
break;
default:
/* do this here because of the long range */
if (id >= SLICE_MIN_START_CODE && id <= SLICE_MAX_START_CODE) {
enc->flags |= ENC_HAVE_DATA;
gst_rfc2250_enc_add_slice (enc, buffer);
buffer = NULL;
break;
}
break;
}
if (buffer) {
gst_buffer_merge (enc->packet, buffer);
enc->remaining -= GST_BUFFER_SIZE (buffer);
gst_buffer_unref (buffer);
}
} else {
if (enc->packet) {
gst_pad_push (enc->srcpad, GST_DATA (enc->packet));
enc->packet = NULL;
enc->flags = 0;
enc->remaining = enc->MTU;
}
gst_pad_event_default (enc->sinkpad, GST_EVENT (data));
}
}
static void
gst_median_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstMedian *median;
guchar *data;
gulong size;
GstBuffer *outbuf;
/* GstMeta *meta; */
int lumsize, chromsize;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
median = GST_MEDIAN (GST_OBJECT_PARENT (pad));
if (!median->active) {
gst_pad_push (median->srcpad, GST_DATA (buf));
return;
}
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
GST_DEBUG ("median: have buffer of %d", GST_BUFFER_SIZE (buf));
outbuf = gst_buffer_new ();
GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (buf));
GST_BUFFER_SIZE (outbuf) = GST_BUFFER_SIZE (buf);
lumsize = median->width * median->height;
chromsize = lumsize / 4;
if (median->filtersize == 5) {
median_5 (data, GST_BUFFER_DATA (outbuf), median->width, median->height);
if (!median->lum_only) {
median_5 (data + lumsize, GST_BUFFER_DATA (outbuf) + lumsize,
median->width / 2, median->height / 2);
median_5 (data + lumsize + chromsize,
GST_BUFFER_DATA (outbuf) + lumsize + chromsize, median->width / 2,
median->height / 2);
} else {
memcpy (GST_BUFFER_DATA (outbuf) + lumsize, data + lumsize,
chromsize * 2);
}
} else {
median_9 (data, GST_BUFFER_DATA (outbuf), median->width, median->height);
if (!median->lum_only) {
median_9 (data + lumsize, GST_BUFFER_DATA (outbuf) + lumsize,
median->width / 2, median->height / 2);
median_9 (data + lumsize + chromsize,
GST_BUFFER_DATA (outbuf) + lumsize + chromsize, median->width / 2,
median->height / 2);
} else {
memcpy (GST_BUFFER_DATA (outbuf) + lumsize, data + lumsize,
chromsize * 2);
}
}
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
gst_buffer_unref (buf);
gst_pad_push (median->srcpad, GST_DATA (outbuf));
}
static void
gst_videodrop_chain (GstPad * pad, GstData * data)
{
GstVideodrop *videodrop = GST_VIDEODROP (gst_pad_get_parent (pad));
GstBuffer *buf;
if (GST_IS_EVENT (data)) {
GstEvent *event = GST_EVENT (data);
if (GST_EVENT_TYPE (event) == GST_EVENT_DISCONTINUOUS) {
/* since we rely on timestamps of the source, we need to handle
* changes in time carefully. */
gint64 time;
if (gst_event_discont_get_value (event, GST_FORMAT_TIME, &time)) {
videodrop->total = videodrop->pass = 0;
videodrop->time_adjust = time;
} else {
GST_ELEMENT_ERROR (videodrop, STREAM, TOO_LAZY, (NULL),
("Received discont, but no time information"));
gst_event_unref (event);
return;
}
/* FIXME: increase timestamp / speed */
}
gst_pad_event_default (pad, event);
return;
}
buf = GST_BUFFER (data);
videodrop->total++;
GST_DEBUG ("Received buffer at %u:%02u:%02u:%09u, fps=%lf, pass=%"
G_GUINT64_FORMAT " of " G_GUINT64_FORMAT ", speed=%lf",
(guint) (GST_BUFFER_TIMESTAMP (buf) / (GST_SECOND * 60 * 60)),
(guint) ((GST_BUFFER_TIMESTAMP (buf) / (GST_SECOND * 60)) % 60),
(guint) ((GST_BUFFER_TIMESTAMP (buf) / GST_SECOND) % 60),
(guint) (GST_BUFFER_TIMESTAMP (buf) % GST_SECOND),
videodrop->to_fps, videodrop->total, videodrop->pass, videodrop->speed);
while (((GST_BUFFER_TIMESTAMP (buf) - videodrop->time_adjust) /
videodrop->speed * videodrop->to_fps / GST_SECOND) >=
videodrop->pass) {
/* since we write to the struct (time/duration), we need a new struct,
* but we don't want to copy around data - a subbuffer is the easiest
* way to accomplish that... */
GstBuffer *copy = gst_buffer_create_sub (buf, 0, GST_BUFFER_SIZE (buf));
/* adjust timestamp/duration and push forward */
GST_BUFFER_TIMESTAMP (copy) = (videodrop->time_adjust / videodrop->speed) +
GST_SECOND * videodrop->pass / videodrop->to_fps;
GST_BUFFER_DURATION (copy) = GST_SECOND / videodrop->to_fps;
GST_DEBUG ("Sending out buffer from out %u:%02u:%02u:%09u",
(guint) (GST_BUFFER_TIMESTAMP (copy) / (GST_SECOND * 60 * 60)),
(guint) ((GST_BUFFER_TIMESTAMP (copy) / (GST_SECOND * 60)) % 60),
(guint) ((GST_BUFFER_TIMESTAMP (copy) / GST_SECOND) % 60),
(guint) (GST_BUFFER_TIMESTAMP (copy) % GST_SECOND));
gst_pad_push (videodrop->srcpad, GST_DATA (copy));
videodrop->pass++;
}
gst_buffer_unref (buf);
}
static void
write_labels (GstWavEnc * wavenc)
{
GstBuffer *buf;
GString *info_str;
int total = 4;
GList *caps;
info_str = g_string_new ("LIST adtl");
if (gst_props_get (wavenc->metadata->properties, "ltxts", &caps, NULL)) {
GList *p;
int i;
for (p = caps, i = 1; p; p = p->next, i++) {
GstCaps *ltxt_caps = p->data;
GString *ltxt;
char *label = NULL;
int len, req, j;
gst_props_get (ltxt_caps->properties, "name", &label, NULL);
len = strlen (label);
#define LTXT_SIZE 28
ltxt = g_string_new ("ltxt ");
ltxt->str[8] = GUINT32_TO_LE (i); /* Identifier */
ltxt->str[12] = GUINT32_TO_LE (0); /* Sample Length */
ltxt->str[16] = GUINT32_TO_LE (0); /* FIXME: Don't save the purpose yet */
ltxt->str[20] = GUINT16_TO_LE (0); /* Country */
ltxt->str[22] = GUINT16_TO_LE (0); /* Language */
ltxt->str[24] = GUINT16_TO_LE (0); /* Dialect */
ltxt->str[26] = GUINT16_TO_LE (0); /* Code Page */
g_string_append (ltxt, label);
g_free (label);
len += LTXT_SIZE;
ltxt->str[4] = GUINT32_TO_LE (len);
/* Check that we end on an even boundary */
req = ((len + 8) + 1) & ~1;
for (j = 0; j < req - len; j++) {
g_string_append_printf (ltxt, "%c", 0);
}
total += req;
g_string_append (info_str, ltxt->str);
g_string_free (ltxt, TRUE);
}
}
if (gst_props_get (wavenc->metadata->properties, "labels", &caps, NULL)) {
GList *p;
int i;
for (p = caps, i = 1; p; p = p->next, i++) {
GstCaps *labl_caps = p->data;
GString *labl;
char *label = NULL;
int len, req, j;
gst_props_get (labl_caps->properties, "name", &label, NULL);
len = strlen (label);
#define LABL_SIZE 4
labl = g_string_new ("labl ");
labl->str[8] = GUINT32_TO_LE (i);
g_string_append (labl, label);
g_free (label);
len += LABL_SIZE;
labl->str[4] = GUINT32_TO_LE (len);
/* Check our size */
req = ((len + 8) + 1) & ~1;
for (j = 0; j < req - len; j++) {
g_string_append_printf (labl, "%c", 0);
}
total += req;
g_string_append (info_str, labl->str);
g_string_free (labl, TRUE);
}
}
if (gst_props_get (wavenc->metadata->properties, "notes", &caps, NULL)) {
GList *p;
int i;
for (p = caps, i = 1; p; p = p->next, i++) {
GstCaps *note_caps = p->data;
GString *note;
char *label = NULL;
int len, req, j;
gst_props_get (note_caps->properties, "name", &label, NULL);
len = strlen (label);
#define NOTE_SIZE 4
note = g_string_new ("note ");
note->str[8] = GUINT32_TO_LE (i);
g_string_append (note, label);
g_free (label);
len += NOTE_SIZE;
note->str[4] = GUINT32_TO_LE (len);
/* Size check */
req = ((len + 8) + 1) & ~1;
for (j = 0; j < req - len; j++) {
g_string_append_printf (note, "%c", 0);
}
total += req;
g_string_append (info_str, note->str);
g_string_free (note, TRUE);
}
}
info_str->str[4] = GUINT32_TO_LE (total);
buf = gst_buffer_new ();
gst_buffer_set_data (buf, info_str->str, info_str->len);
gst_pad_push (wavenc->srcpad, GST_DATA (buf));
g_string_free (info_str, FALSE);
}
static void
gst_tarkindec_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
TarkinDec *tarkindec;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
tarkindec = GST_TARKINDEC (gst_pad_get_parent (pad));
if (!tarkindec->setup) {
GST_ELEMENT_ERROR (tarkindec, CORE, NEGOTATION, (NULL),
("decoder not initialized (input is not tarkin?)"));
if (GST_IS_BUFFER (buf))
gst_buffer_unref (buf);
else
gst_pad_event_default (pad, GST_EVENT (buf));
return;
}
if (GST_IS_EVENT (buf)) {
switch (GST_EVENT_TYPE (buf)) {
case GST_EVENT_EOS:
default:
gst_pad_event_default (pad, GST_EVENT (buf));
break;
}
} else {
gchar *data;
gulong size;
gchar *buffer;
guchar *rgb;
TarkinTime date;
TarkinVideoLayerDesc *layer;
/* data to decode */
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
buffer = ogg_sync_buffer (&tarkindec->oy, size);
memcpy (buffer, data, size);
ogg_sync_wrote (&tarkindec->oy, size);
if (ogg_sync_pageout (&tarkindec->oy, &tarkindec->og)) {
ogg_stream_pagein (&tarkindec->os, &tarkindec->og);
while (ogg_stream_packetout (&tarkindec->os, &tarkindec->op)) {
if (tarkindec->op.e_o_s)
break;
if (tarkindec->nheader < 3) { /* 3 first packets to headerin */
tarkin_synthesis_headerin (&tarkindec->ti, &tarkindec->tc,
&tarkindec->op);
if (tarkindec->nheader == 2) {
tarkin_synthesis_init (tarkindec->tarkin_stream, &tarkindec->ti);
}
tarkindec->nheader++;
} else {
tarkin_synthesis_packetin (tarkindec->tarkin_stream, &tarkindec->op);
while (tarkin_synthesis_frameout (tarkindec->tarkin_stream, &rgb, 0,
&date) == 0) {
GstBuffer *outbuf;
layer = &tarkindec->tarkin_stream->layer->desc;
if (!GST_PAD_CAPS (tarkindec->srcpad)) {
if (gst_pad_try_set_caps (tarkindec->srcpad, GST_CAPS_NEW ("tarkin_raw", "video/x-raw-rgb", "bpp", GST_PROPS_INT (24), "depth", GST_PROPS_INT (24), "endianness", GST_PROPS_INT (G_BYTE_ORDER), "red_mask", GST_PROPS_INT (0xff0000), "green_mask", GST_PROPS_INT (0xff00), "blue_mask", GST_PROPS_INT (0xff), "width", GST_PROPS_INT (layer->width), "height", GST_PROPS_INT (layer->height), "framerate", GST_PROPS_FLOAT (0.) /* FIXME!!! */
)) <= 0) {
GST_ELEMENT_ERROR (tarkindec, CORE, NEGOTATION, (NULL),
("could not output format"));
gst_buffer_unref (buf);
return;
}
}
outbuf = gst_buffer_new ();
GST_BUFFER_DATA (outbuf) = rgb;
GST_BUFFER_SIZE (outbuf) = layer->width * layer->height * 3;
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_DONTFREE);
gst_pad_push (tarkindec->srcpad, GST_DATA (outbuf));
tarkin_synthesis_freeframe (tarkindec->tarkin_stream, rgb);
}
}
}
}
gst_buffer_unref (buf);
}
}
static void
gst_fameenc_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstFameEnc *fameenc;
guchar *data;
gulong size;
gint frame_size;
gint length;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
g_return_if_fail (GST_IS_BUFFER (buf));
fameenc = GST_FAMEENC (gst_pad_get_parent (pad));
data = (guchar *) GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
GST_DEBUG ("gst_fameenc_chain: got buffer of %ld bytes in '%s'",
size, GST_OBJECT_NAME (fameenc));
/* the data contains the three planes side by side, with size w * h, w * h /4,
* w * h / 4 */
fameenc->fy.w = fameenc->fp.width;
fameenc->fy.h = fameenc->fp.height;
frame_size = fameenc->fp.width * fameenc->fp.height;
fameenc->fy.p = 0;
fameenc->fy.y = data;
fameenc->fy.u = data + frame_size;
fameenc->fy.v = fameenc->fy.u + (frame_size >> 2);
fame_start_frame (fameenc->fc, &fameenc->fy, NULL);
while ((length = fame_encode_slice (fameenc->fc)) != 0) {
GstBuffer *outbuf;
outbuf = gst_buffer_new ();
/* FIXME: safeguard, remove me when a better way is found */
if (length > FAMEENC_BUFFER_SIZE)
g_warning
("FAMEENC_BUFFER_SIZE is defined too low, encoded slice has size %d !\n",
length);
if (!fameenc->time_interval) {
fameenc->time_interval =
GST_SECOND * fameenc->fp.frame_rate_den / fameenc->fp.frame_rate_num;
}
fameenc->next_time += fameenc->time_interval;
GST_BUFFER_SIZE (outbuf) = length;
GST_BUFFER_TIMESTAMP (outbuf) = fameenc->next_time;
GST_BUFFER_DATA (outbuf) = g_malloc (length);
memcpy (GST_BUFFER_DATA (outbuf), fameenc->buffer, length);
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
GST_DEBUG ("gst_fameenc_chain: pushing buffer of size %d",
GST_BUFFER_SIZE (outbuf));
gst_pad_push (fameenc->srcpad, GST_DATA (outbuf));
}
fame_end_frame (fameenc->fc, NULL);
gst_buffer_unref (buf);
}
static void
gst_snapshot_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstSnapshot *snapshot;
guchar *data;
gulong size;
gint i;
png_byte *row_pointers[MAX_HEIGHT];
FILE *fp;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
snapshot = GST_SNAPSHOT (GST_OBJECT_PARENT (pad));
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
GST_DEBUG ("snapshot: have buffer of %d\n", GST_BUFFER_SIZE (buf));
snapshot->cur_frame++;
if (snapshot->cur_frame == snapshot->frame ||
snapshot->snapshot_asked == TRUE) {
snapshot->snapshot_asked = FALSE;
GST_INFO ("dumpfile : %s\n", snapshot->location);
fp = fopen (snapshot->location, "wb");
if (fp == NULL)
g_warning (" Can not open %s\n", snapshot->location);
else {
snapshot->png_struct_ptr =
png_create_write_struct (PNG_LIBPNG_VER_STRING, (png_voidp) NULL,
user_error_fn, user_warning_fn);
if (snapshot->png_struct_ptr == NULL)
g_warning ("Failed to initialize png structure");
snapshot->png_info_ptr =
png_create_info_struct (snapshot->png_struct_ptr);
if (setjmp (snapshot->png_struct_ptr->jmpbuf))
png_destroy_write_struct (&snapshot->png_struct_ptr,
&snapshot->png_info_ptr);
png_set_filter (snapshot->png_struct_ptr, 0,
PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE);
png_init_io (snapshot->png_struct_ptr, fp);
png_set_compression_level (snapshot->png_struct_ptr, 9);
png_set_IHDR (snapshot->png_struct_ptr,
snapshot->png_info_ptr,
snapshot->width,
snapshot->height,
snapshot->to_bpp / 3,
PNG_COLOR_TYPE_RGB,
PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
for (i = 0; i < snapshot->height; i++)
row_pointers[i] = data + (snapshot->width * i * snapshot->to_bpp / 8);
png_write_info (snapshot->png_struct_ptr, snapshot->png_info_ptr);
png_write_image (snapshot->png_struct_ptr, row_pointers);
png_write_end (snapshot->png_struct_ptr, NULL);
png_destroy_info_struct (snapshot->png_struct_ptr,
&snapshot->png_info_ptr);
png_destroy_write_struct (&snapshot->png_struct_ptr, (png_infopp) NULL);
fclose (fp);
}
}
gst_pad_push (snapshot->srcpad, GST_DATA (buf));
}
static void
gst_chart_chain (GstPad * pad, GstData * _data)
{
GstBuffer *bufin = GST_BUFFER (_data);
GstChart *chart;
GstBuffer *bufout;
guint32 samples_in;
guint32 sizeout;
gint16 *datain;
guchar *dataout;
g_return_if_fail (bufin != NULL);
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (GST_IS_CHART (GST_OBJECT_PARENT (pad)));
chart = GST_CHART (GST_OBJECT_PARENT (pad));
g_return_if_fail (chart != NULL);
GST_DEBUG ("CHART: chainfunc called");
samples_in = GST_BUFFER_SIZE (bufin) / sizeof (gint16);
datain = (gint16 *) (GST_BUFFER_DATA (bufin));
GST_DEBUG ("input buffer has %d samples", samples_in);
if (chart->next_time <= GST_BUFFER_TIMESTAMP (bufin)) {
chart->next_time = GST_BUFFER_TIMESTAMP (bufin);
GST_DEBUG ("in: %" G_GINT64_FORMAT, GST_BUFFER_TIMESTAMP (bufin));
}
chart->samples_since_last_frame += samples_in;
if (chart->samples_between_frames <= chart->samples_since_last_frame) {
chart->samples_since_last_frame = 0;
/* get data to draw into buffer */
if (samples_in >= chart->width) {
/* make a new buffer for the output */
bufout = gst_buffer_new ();
sizeout = chart->bpp / 8 * chart->width * chart->height;
dataout = g_malloc (sizeout);
GST_BUFFER_SIZE (bufout) = sizeout;
GST_BUFFER_DATA (bufout) = dataout;
GST_DEBUG ("CHART: made new buffer: size %d, width %d, height %d",
sizeout, chart->width, chart->height);
/* take data and draw to new buffer */
/* FIXME: call different routines for different properties */
draw_chart_16bpp (dataout, chart->width, chart->height, (gint16 *) datain,
samples_in);
gst_buffer_unref (bufin);
/* set timestamp */
GST_BUFFER_TIMESTAMP (bufout) = chart->next_time;
GST_DEBUG ("CHART: outputting buffer");
/* output buffer */
GST_BUFFER_FLAG_SET (bufout, GST_BUFFER_READONLY);
gst_pad_push (chart->srcpad, GST_DATA (bufout));
}
} else {
GST_DEBUG ("CHART: skipping buffer");
gst_buffer_unref (bufin);
}
GST_DEBUG ("CHART: exiting chainfunc");
}
