static GstFlowReturn
gst_inter_app_src_create (GstBaseSrc * src, guint64 offset, guint size,
GstBuffer ** buf)
{
GstInterAppSrc *interappsrc = GST_INTER_APP_SRC (src);
GstBuffer *buffer = NULL;
GstCaps *caps = NULL;
gboolean changed;
GST_DEBUG_OBJECT (interappsrc, "create");
caps = gst_deferred_client_get_caps (&interappsrc->surface->app_client,
&changed, TRUE);
buffer = gst_deferred_client_get_buffer (&interappsrc->surface->app_client);
if (changed) {
GST_DEBUG_OBJECT (interappsrc, "Got caps: %" GST_PTR_FORMAT, caps);
if (!gst_base_src_set_caps (src, caps)) {
GST_ERROR_OBJECT (interappsrc, "Failed to set caps");
gst_caps_unref (caps);
return GST_FLOW_NOT_NEGOTIATED;
}
gst_caps_unref (caps);
}
GST_LOG_OBJECT (interappsrc, "Pushing %u bytes",
(unsigned int) gst_buffer_get_size (buffer));
*buf = buffer;
return GST_FLOW_OK;
}
/**
* shell_recorder_src_add_buffer:
*
* Adds a buffer to the internal queue to be pushed out at the next opportunity.
* There is no flow control, so arbitrary amounts of memory may be used by
* the buffers on the queue. The buffer contents must match the #GstCaps
* set in the :caps property.
*/
void
shell_recorder_src_add_buffer (ShellRecorderSrc *src,
GstBuffer *buffer)
{
g_return_if_fail (SHELL_IS_RECORDER_SRC (src));
g_return_if_fail (src->caps != NULL);
gst_base_src_set_caps (GST_BASE_SRC (src), src->caps);
shell_recorder_src_update_memory_used (src,
(int)(gst_buffer_get_size(buffer) / 1024));
g_async_queue_push (src->queue, gst_buffer_ref (buffer));
}
static gboolean gst_imx_v4l2src_negotiate(GstBaseSrc *src)
{
GstImxV4l2VideoSrc *v4l2src = GST_IMX_V4L2SRC(src);
GstCaps *caps;
/* not much to negotiate;
* we already performed setup, so that is what will be streamed */
caps = gst_imx_v4l2src_caps_for_current_setup(v4l2src);
if (!caps)
return FALSE;
GST_INFO_OBJECT(src, "negotiated caps %" GST_PTR_FORMAT, (gpointer)caps);
return gst_base_src_set_caps(src, caps);
}
static gboolean gst_imx_v4l2src_negotiate(GstBaseSrc *src)
{
GstImxV4l2VideoSrc *v4l2src = GST_IMX_V4L2SRC(src);
GstCaps *caps;
GstVideoFormat gst_fmt;
const gchar *pixel_format = NULL;
const gchar *interlace_mode = "progressive";
struct v4l2_format fmt;
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if (ioctl(GST_IMX_FD_OBJECT_GET_FD(v4l2src->fd_obj_v4l), VIDIOC_G_FMT, &fmt) < 0) {
GST_ERROR_OBJECT(v4l2src, "VIDIOC_G_FMT failed");
return FALSE;
}
switch (fmt.fmt.pix.pixelformat) {
case V4L2_PIX_FMT_YUV420: /* Special Case for handling YU12 */
pixel_format = "I420";
break;
case V4L2_PIX_FMT_YUYV: /* Special Case for handling YUYV */
pixel_format = "YUY2";
break;
default:
gst_fmt = gst_video_format_from_fourcc(fmt.fmt.pix.pixelformat);
pixel_format = gst_video_format_to_string(gst_fmt);
}
if (fmt.fmt.pix.field == V4L2_FIELD_INTERLACED)
interlace_mode = "interleaved";
/* not much to negotiate;
* we already performed setup, so that is what will be streamed */
caps = gst_caps_new_simple("video/x-raw",
"format", G_TYPE_STRING, pixel_format,
"width", G_TYPE_INT, v4l2src->capture_width,
"height", G_TYPE_INT, v4l2src->capture_height,
"interlace-mode", G_TYPE_STRING, interlace_mode,
"framerate", GST_TYPE_FRACTION, v4l2src->fps_n, v4l2src->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,
NULL);
GST_INFO_OBJECT(src, "negotiated caps %" GST_PTR_FORMAT, (gpointer)caps);
return gst_base_src_set_caps(src, caps);
}
static gboolean gst_imx_v4l2src_negotiate(GstBaseSrc *src)
{
GstImxV4l2Src *v4l2src = GST_IMX_V4L2SRC(src);
GstCaps *caps;
/* not much to negotiate;
* we already performed setup, so that is what will be streamed */
caps = gst_caps_new_simple("video/x-raw",
"format", G_TYPE_STRING, "I420",
"width", G_TYPE_INT, v4l2src->capture_width,
"height", G_TYPE_INT, v4l2src->capture_height,
"framerate", GST_TYPE_FRACTION, v4l2src->fps_n, v4l2src->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,
NULL);
GST_INFO_OBJECT(src, "negotiated caps %" GST_PTR_FORMAT, (gpointer)caps);
return gst_base_src_set_caps(src, caps);
}
static gboolean
gst_app_src_do_negotiate (GstBaseSrc * basesrc)
{
GstAppSrc *appsrc = GST_APP_SRC_CAST (basesrc);
GstAppSrcPrivate *priv = appsrc->priv;
gboolean result;
GstCaps *caps;
GST_OBJECT_LOCK (basesrc);
caps = priv->caps ? gst_caps_ref (priv->caps) : NULL;
GST_OBJECT_UNLOCK (basesrc);
if (caps) {
result = gst_base_src_set_caps (basesrc, caps);
gst_caps_unref (caps);
} else {
result = GST_BASE_SRC_CLASS (parent_class)->negotiate (basesrc);
}
return result;
}
static gboolean
gst_v4l2src_negotiate (GstBaseSrc * basesrc)
{
GstV4l2Src *v4l2src;
GstV4l2Object *obj;
GstCaps *thiscaps;
GstCaps *caps = NULL;
GstCaps *peercaps = NULL;
gboolean result = FALSE;
v4l2src = GST_V4L2SRC (basesrc);
obj = v4l2src->v4l2object;
/* We don't allow renegotiation, just return TRUE in that case */
if (GST_V4L2_IS_ACTIVE (obj))
return TRUE;
/* first see what is possible on our source pad */
thiscaps = gst_pad_query_caps (GST_BASE_SRC_PAD (basesrc), NULL);
GST_DEBUG_OBJECT (basesrc, "caps of src: %" GST_PTR_FORMAT, thiscaps);
LOG_CAPS (basesrc, thiscaps);
/* nothing or anything is allowed, we're done */
if (thiscaps == NULL || gst_caps_is_any (thiscaps))
goto no_nego_needed;
/* get the peer caps without a filter as we'll filter ourselves later on */
peercaps = gst_pad_peer_query_caps (GST_BASE_SRC_PAD (basesrc), NULL);
GST_DEBUG_OBJECT (basesrc, "caps of peer: %" GST_PTR_FORMAT, peercaps);
LOG_CAPS (basesrc, peercaps);
if (peercaps && !gst_caps_is_any (peercaps)) {
GstCaps *icaps = NULL;
int i;
/* Prefer the first caps we are compatible with that the peer proposed */
for (i = 0; i < gst_caps_get_size (peercaps); i++) {
/* get intersection */
GstCaps *ipcaps = gst_caps_copy_nth (peercaps, i);
GST_DEBUG_OBJECT (basesrc, "peer: %" GST_PTR_FORMAT, ipcaps);
LOG_CAPS (basesrc, ipcaps);
icaps = gst_caps_intersect (thiscaps, ipcaps);
gst_caps_unref (ipcaps);
if (!gst_caps_is_empty (icaps))
break;
gst_caps_unref (icaps);
icaps = NULL;
}
GST_DEBUG_OBJECT (basesrc, "intersect: %" GST_PTR_FORMAT, icaps);
LOG_CAPS (basesrc, icaps);
if (icaps) {
/* If there are multiple intersections pick the one with the smallest
* resolution strictly bigger then the first peer caps */
if (gst_caps_get_size (icaps) > 1) {
GstStructure *s = gst_caps_get_structure (peercaps, 0);
int best = 0;
int twidth, theight;
int width = G_MAXINT, height = G_MAXINT;
if (gst_structure_get_int (s, "width", &twidth)
&& gst_structure_get_int (s, "height", &theight)) {
/* Walk the structure backwards to get the first entry of the
* smallest resolution bigger (or equal to) the preferred resolution)
*/
for (i = gst_caps_get_size (icaps) - 1; i >= 0; i--) {
GstStructure *is = gst_caps_get_structure (icaps, i);
int w, h;
if (gst_structure_get_int (is, "width", &w)
&& gst_structure_get_int (is, "height", &h)) {
if (w >= twidth && w <= width && h >= theight && h <= height) {
width = w;
height = h;
best = i;
}
}
}
}
caps = gst_caps_copy_nth (icaps, best);
gst_caps_unref (icaps);
} else {
caps = icaps;
}
}
gst_caps_unref (thiscaps);
} else {
/* no peer or peer have ANY caps, work with our own caps then */
caps = thiscaps;
}
if (peercaps)
gst_caps_unref (peercaps);
if (caps) {
caps = gst_caps_truncate (caps);
/* now fixate */
if (!gst_caps_is_empty (caps)) {
caps = gst_v4l2src_fixate (basesrc, caps);
GST_DEBUG_OBJECT (basesrc, "fixated to: %" GST_PTR_FORMAT, caps);
LOG_CAPS (basesrc, caps);
if (gst_caps_is_any (caps)) {
/* hmm, still anything, so element can do anything and
* nego is not needed */
result = TRUE;
} else if (gst_caps_is_fixed (caps)) {
/* yay, fixed caps, use those then */
result = gst_base_src_set_caps (basesrc, caps);
}
}
gst_caps_unref (caps);
}
return result;
no_nego_needed:
{
GST_DEBUG_OBJECT (basesrc, "no negotiation needed");
if (thiscaps)
gst_caps_unref (thiscaps);
return TRUE;
}
}
static GstFlowReturn
gst_decklink_video_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
{
GstDecklinkVideoSrc *self = GST_DECKLINK_VIDEO_SRC_CAST (bsrc);
GstFlowReturn flow_ret = GST_FLOW_OK;
const guint8 *data;
gsize data_size;
VideoFrame *vf;
CaptureFrame *f;
GstCaps *caps;
gboolean caps_changed = FALSE;
g_mutex_lock (&self->lock);
while (g_queue_is_empty (&self->current_frames) && !self->flushing) {
g_cond_wait (&self->cond, &self->lock);
}
f = (CaptureFrame *) g_queue_pop_head (&self->current_frames);
g_mutex_unlock (&self->lock);
if (self->flushing) {
if (f)
capture_frame_free (f);
GST_DEBUG_OBJECT (self, "Flushing");
return GST_FLOW_FLUSHING;
}
// If we're not flushing, we should have a valid frame from the queue
g_assert (f != NULL);
g_mutex_lock (&self->lock);
if (self->caps_mode != f->mode) {
if (self->mode == GST_DECKLINK_MODE_AUTO) {
GST_DEBUG_OBJECT (self, "Mode changed from %d to %d", self->caps_mode,
f->mode);
caps_changed = TRUE;
self->caps_mode = f->mode;
} else {
g_mutex_unlock (&self->lock);
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
("Invalid mode in captured frame"),
("Mode set to %d but captured %d", self->caps_mode, f->mode));
capture_frame_free (f);
return GST_FLOW_NOT_NEGOTIATED;
}
}
if (self->caps_format != f->format) {
if (self->video_format == GST_DECKLINK_VIDEO_FORMAT_AUTO) {
GST_DEBUG_OBJECT (self, "Format changed from %d to %d", self->caps_format,
f->format);
caps_changed = TRUE;
self->caps_format = f->format;
} else {
g_mutex_unlock (&self->lock);
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
("Invalid pixel format in captured frame"),
("Format set to %d but captured %d", self->caps_format, f->format));
capture_frame_free (f);
return GST_FLOW_NOT_NEGOTIATED;
}
}
g_mutex_unlock (&self->lock);
if (caps_changed) {
caps = gst_decklink_mode_get_caps (f->mode, f->format);
gst_video_info_from_caps (&self->info, caps);
gst_base_src_set_caps (GST_BASE_SRC_CAST (bsrc), caps);
gst_element_post_message (GST_ELEMENT_CAST (self),
gst_message_new_latency (GST_OBJECT_CAST (self)));
gst_caps_unref (caps);
}
f->frame->GetBytes ((gpointer *) & data);
data_size = self->info.size;
vf = (VideoFrame *) g_malloc0 (sizeof (VideoFrame));
*buffer =
gst_buffer_new_wrapped_full ((GstMemoryFlags) GST_MEMORY_FLAG_READONLY,
(gpointer) data, data_size, 0, data_size, vf,
(GDestroyNotify) video_frame_free);
vf->frame = f->frame;
f->frame->AddRef ();
vf->input = self->input->input;
vf->input->AddRef ();
GST_BUFFER_TIMESTAMP (*buffer) = f->capture_time;
GST_BUFFER_DURATION (*buffer) = f->capture_duration;
gst_buffer_add_video_time_code_meta (*buffer, f->tc);
GST_DEBUG_OBJECT (self,
"Outputting buffer %p with timestamp %" GST_TIME_FORMAT " and duration %"
GST_TIME_FORMAT, *buffer, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (*buffer)),
GST_TIME_ARGS (GST_BUFFER_DURATION (*buffer)));
capture_frame_free (f);
return flow_ret;
}
static gboolean
gst_data_uri_src_set_uri (GstURIHandler * handler, const gchar * uri,
GError ** error)
{
GstDataURISrc *src = GST_DATA_URI_SRC (handler);
gboolean ret = FALSE;
gchar *mimetype = NULL;
const gchar *parameters_start;
const gchar *data_start;
const gchar *orig_uri = uri;
GstCaps *caps;
GstBuffer *buffer;
gboolean base64 = FALSE;
gchar *charset = NULL;
gpointer bdata;
gsize bsize;
GST_OBJECT_LOCK (src);
if (GST_STATE (src) >= GST_STATE_PAUSED)
goto wrong_state;
GST_OBJECT_UNLOCK (src);
/* uri must be an URI as defined in RFC 2397
* data:[<mediatype>][;base64],<data>
*/
if (strncmp ("data:", uri, 5) != 0)
goto invalid_uri;
uri += 5;
parameters_start = strchr (uri, ';');
data_start = strchr (uri, ',');
if (data_start == NULL)
goto invalid_uri;
if (data_start != uri && parameters_start != uri)
mimetype =
g_strndup (uri,
(parameters_start ? parameters_start : data_start) - uri);
else
mimetype = g_strdup ("text/plain");
GST_DEBUG_OBJECT (src, "Mimetype: %s", mimetype);
if (parameters_start != NULL) {
gchar **walk;
gchar *parameters =
g_strndup (parameters_start + 1, data_start - parameters_start - 1);
gchar **parameters_strv;
parameters_strv = g_strsplit (parameters, ";", -1);
GST_DEBUG_OBJECT (src, "Parameters: ");
walk = parameters_strv;
while (*walk) {
GST_DEBUG_OBJECT (src, "\t %s", *walk);
if (strcmp ("base64", *walk) == 0) {
base64 = TRUE;
} else if (strncmp ("charset=", *walk, 8) == 0) {
charset = g_strdup (*walk + 8);
}
walk++;
}
g_free (parameters);
g_strfreev (parameters_strv);
}
/* Skip comma */
data_start += 1;
if (base64) {
bdata = g_base64_decode (data_start, &bsize);
} else {
/* URI encoded, i.e. "percent" encoding */
bdata = g_uri_unescape_string (data_start, NULL);
if (bdata == NULL)
goto invalid_uri_encoded_data;
bsize = strlen (bdata) + 1;
}
/* Convert to UTF8 */
if (strcmp ("text/plain", mimetype) == 0 &&
charset && g_ascii_strcasecmp ("US-ASCII", charset) != 0
&& g_ascii_strcasecmp ("UTF-8", charset) != 0) {
gsize read;
gsize written;
gpointer data;
data =
g_convert_with_fallback (bdata, -1, "UTF-8", charset, (char *) "*",
&read, &written, NULL);
g_free (bdata);
bdata = data;
bsize = written;
}
buffer = gst_buffer_new_wrapped (bdata, bsize);
caps = gst_type_find_helper_for_buffer (GST_OBJECT (src), buffer, NULL);
if (!caps)
caps = gst_caps_new_empty_simple (mimetype);
gst_base_src_set_caps (GST_BASE_SRC_CAST (src), caps);
gst_caps_unref (caps);
GST_OBJECT_LOCK (src);
gst_buffer_replace (&src->buffer, buffer);
gst_buffer_unref (buffer);
g_free (src->uri);
src->uri = g_strdup (orig_uri);
GST_OBJECT_UNLOCK (src);
ret = TRUE;
out:
g_free (mimetype);
g_free (charset);
return ret;
wrong_state:
{
GST_WARNING_OBJECT (src, "Can't set URI in %s state",
gst_element_state_get_name (GST_STATE (src)));
GST_OBJECT_UNLOCK (src);
g_set_error (error, GST_URI_ERROR, GST_URI_ERROR_BAD_STATE,
"Changing the 'uri' property on dataurisrc while it is running "
"is not supported");
goto out;
}
invalid_uri:
{
GST_WARNING_OBJECT (src, "invalid URI '%s'", uri);
g_set_error (error, GST_URI_ERROR, GST_URI_ERROR_BAD_URI,
"Invalid data URI");
goto out;
}
invalid_uri_encoded_data:
{
GST_WARNING_OBJECT (src, "Failed to parse data encoded in URI '%s'", uri);
g_set_error (error, GST_URI_ERROR, GST_URI_ERROR_BAD_URI,
"Could not parse data encoded in data URI");
goto out;
}
}
static gboolean
gst_rfb_src_negotiate (GstBaseSrc * bsrc)
{
GstRfbSrc *src = GST_RFB_SRC (bsrc);
RfbDecoder *decoder;
GstCaps *caps;
GstVideoInfo vinfo;
GstVideoFormat vformat;
guint32 red_mask, green_mask, blue_mask;
gchar *stream_id = NULL;
GstEvent *stream_start = NULL;
decoder = src->decoder;
if (decoder->inited)
return TRUE;
GST_DEBUG_OBJECT (src, "connecting to host %s on port %d",
src->host, src->port);
if (!rfb_decoder_connect_tcp (decoder, src->host, src->port)) {
if (decoder->error != NULL) {
GST_ELEMENT_ERROR (src, RESOURCE, READ,
("Could not connect to VNC server %s on port %d: %s", src->host,
src->port, decoder->error->message), (NULL));
} else {
GST_ELEMENT_ERROR (src, RESOURCE, READ,
("Could not connect to VNC server %s on port %d", src->host,
src->port), (NULL));
}
return FALSE;
}
while (!decoder->inited) {
if (!rfb_decoder_iterate (decoder)) {
if (decoder->error != NULL) {
GST_ELEMENT_ERROR (src, RESOURCE, READ,
("Failed to setup VNC connection to host %s on port %d: %s",
src->host, src->port, decoder->error->message), (NULL));
} else {
GST_ELEMENT_ERROR (src, RESOURCE, READ,
("Failed to setup VNC connection to host %s on port %d", src->host,
src->port), (NULL));
}
return FALSE;
}
}
stream_id = gst_pad_create_stream_id_printf (GST_BASE_SRC_PAD (bsrc),
GST_ELEMENT (src), "%s:%d", src->host, src->port);
stream_start = gst_event_new_stream_start (stream_id);
g_free (stream_id);
gst_pad_push_event (GST_BASE_SRC_PAD (bsrc), stream_start);
decoder->rect_width =
(decoder->rect_width ? decoder->rect_width : decoder->width);
decoder->rect_height =
(decoder->rect_height ? decoder->rect_height : decoder->height);
decoder->decoder_private = src;
/* calculate some many used values */
decoder->bytespp = decoder->bpp / 8;
decoder->line_size = decoder->rect_width * decoder->bytespp;
GST_DEBUG_OBJECT (src, "setting caps width to %d and height to %d",
decoder->rect_width, decoder->rect_height);
red_mask = decoder->red_max << decoder->red_shift;
green_mask = decoder->green_max << decoder->green_shift;
blue_mask = decoder->blue_max << decoder->blue_shift;
vformat = gst_video_format_from_masks (decoder->depth, decoder->bpp,
decoder->big_endian ? G_BIG_ENDIAN : G_LITTLE_ENDIAN,
red_mask, green_mask, blue_mask, 0);
gst_video_info_init (&vinfo);
gst_video_info_set_format (&vinfo, vformat, decoder->rect_width,
decoder->rect_height);
decoder->frame = g_malloc (vinfo.size);
if (decoder->use_copyrect)
decoder->prev_frame = g_malloc (vinfo.size);
caps = gst_video_info_to_caps (&vinfo);
gst_base_src_set_caps (bsrc, caps);
gst_caps_unref (caps);
return TRUE;
}
/* This is essentially gst_base_src_negotiate_default() but the caps
* are guaranteed to have a channel layout for > 2 channels
*/
static gboolean
gst_pulsesrc_negotiate (GstBaseSrc * basesrc)
{
GstPulseSrc *pulsesrc = GST_PULSESRC_CAST (basesrc);
GstCaps *thiscaps;
GstCaps *caps = NULL;
GstCaps *peercaps = NULL;
gboolean result = FALSE;
/* first see what is possible on our source pad */
thiscaps = gst_pad_query_caps (GST_BASE_SRC_PAD (basesrc), NULL);
GST_DEBUG_OBJECT (basesrc, "caps of src: %" GST_PTR_FORMAT, thiscaps);
/* nothing or anything is allowed, we're done */
if (thiscaps == NULL || gst_caps_is_any (thiscaps))
goto no_nego_needed;
/* get the peer caps */
peercaps = gst_pad_peer_query_caps (GST_BASE_SRC_PAD (basesrc), NULL);
GST_DEBUG_OBJECT (basesrc, "caps of peer: %" GST_PTR_FORMAT, peercaps);
if (peercaps) {
/* get intersection */
caps = gst_caps_intersect (thiscaps, peercaps);
GST_DEBUG_OBJECT (basesrc, "intersect: %" GST_PTR_FORMAT, caps);
gst_caps_unref (thiscaps);
gst_caps_unref (peercaps);
} else {
/* no peer, work with our own caps then */
caps = thiscaps;
}
if (caps) {
/* take first (and best, since they are sorted) possibility */
caps = gst_caps_truncate (caps);
/* now fixate */
if (!gst_caps_is_empty (caps)) {
caps = GST_BASE_SRC_CLASS (parent_class)->fixate (basesrc, caps);
GST_DEBUG_OBJECT (basesrc, "fixated to: %" GST_PTR_FORMAT, caps);
if (gst_caps_is_any (caps)) {
/* hmm, still anything, so element can do anything and
* nego is not needed */
result = TRUE;
} else if (gst_caps_is_fixed (caps)) {
/* yay, fixed caps, use those then */
result = gst_pulsesrc_create_stream (pulsesrc, &caps);
if (result)
result = gst_base_src_set_caps (basesrc, caps);
}
}
gst_caps_unref (caps);
}
return result;
no_nego_needed:
{
GST_DEBUG_OBJECT (basesrc, "no negotiation needed");
if (thiscaps)
gst_caps_unref (thiscaps);
return TRUE;
}
}
static GstFlowReturn
gst_decklink_video_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
{
GstDecklinkVideoSrc *self = GST_DECKLINK_VIDEO_SRC_CAST (bsrc);
GstFlowReturn flow_ret = GST_FLOW_OK;
const guint8 *data;
gsize data_size;
VideoFrame *vf;
CaptureFrame *f;
GstCaps *caps;
g_mutex_lock (&self->lock);
while (g_queue_is_empty (&self->current_frames) && !self->flushing) {
g_cond_wait (&self->cond, &self->lock);
}
f = (CaptureFrame *) g_queue_pop_head (&self->current_frames);
g_mutex_unlock (&self->lock);
if (self->flushing) {
if (f)
capture_frame_free (f);
GST_DEBUG_OBJECT (self, "Flushing");
return GST_FLOW_FLUSHING;
}
g_mutex_lock (&self->lock);
if (self->mode == GST_DECKLINK_MODE_AUTO && self->caps_mode != f->mode) {
GST_DEBUG_OBJECT (self, "Mode changed from %d to %d", self->caps_mode,
f->mode);
self->caps_mode = f->mode;
g_mutex_unlock (&self->lock);
caps = gst_decklink_mode_get_caps (f->mode);
gst_video_info_from_caps (&self->info, caps);
gst_base_src_set_caps (GST_BASE_SRC_CAST (bsrc), caps);
gst_element_post_message (GST_ELEMENT_CAST (self),
gst_message_new_latency (GST_OBJECT_CAST (self)));
gst_caps_unref (caps);
} else {
g_mutex_unlock (&self->lock);
}
f->frame->GetBytes ((gpointer *) & data);
data_size = self->info.size;
vf = (VideoFrame *) g_malloc0 (sizeof (VideoFrame));
*buffer =
gst_buffer_new_wrapped_full ((GstMemoryFlags) GST_MEMORY_FLAG_READONLY,
(gpointer) data, data_size, 0, data_size, vf,
(GDestroyNotify) video_frame_free);
vf->frame = f->frame;
f->frame->AddRef ();
vf->input = self->input->input;
vf->input->AddRef ();
GST_BUFFER_TIMESTAMP (*buffer) = f->capture_time;
GST_BUFFER_DURATION (*buffer) = f->capture_duration;
GST_DEBUG_OBJECT (self,
"Outputting buffer %p with timestamp %" GST_TIME_FORMAT " and duration %"
GST_TIME_FORMAT, *buffer, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (*buffer)),
GST_TIME_ARGS (GST_BUFFER_DURATION (*buffer)));
capture_frame_free (f);
return flow_ret;
}
static GstFlowReturn
gst_inter_audio_src_create (GstBaseSrc * src, guint64 offset, guint size,
GstBuffer ** buf)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GstCaps *caps;
GstBuffer *buffer;
guint n, bpf;
guint64 period_time;
guint64 period_samples;
GST_DEBUG_OBJECT (interaudiosrc, "create");
buffer = NULL;
caps = NULL;
g_mutex_lock (&interaudiosrc->surface->mutex);
if (interaudiosrc->surface->audio_info.finfo) {
if (!gst_audio_info_is_equal (&interaudiosrc->surface->audio_info,
&interaudiosrc->info)) {
caps = gst_audio_info_to_caps (&interaudiosrc->surface->audio_info);
interaudiosrc->timestamp_offset +=
gst_util_uint64_scale (interaudiosrc->n_samples, GST_SECOND,
interaudiosrc->info.rate);
interaudiosrc->n_samples = 0;
}
}
bpf = interaudiosrc->surface->audio_info.bpf;
period_time = interaudiosrc->surface->audio_period_time;
period_samples =
gst_util_uint64_scale (period_time, interaudiosrc->info.rate, GST_SECOND);
if (bpf > 0)
n = gst_adapter_available (interaudiosrc->surface->audio_adapter) / bpf;
else
n = 0;
if (n > period_samples)
n = period_samples;
if (n > 0) {
buffer = gst_adapter_take_buffer (interaudiosrc->surface->audio_adapter,
n * bpf);
} else {
buffer = gst_buffer_new ();
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_GAP);
}
g_mutex_unlock (&interaudiosrc->surface->mutex);
if (caps) {
gboolean ret = gst_base_src_set_caps (src, caps);
gst_caps_unref (caps);
if (!ret) {
GST_ERROR_OBJECT (src, "Failed to set caps %" GST_PTR_FORMAT, caps);
if (buffer)
gst_buffer_unref (buffer);
return GST_FLOW_NOT_NEGOTIATED;
}
}
buffer = gst_buffer_make_writable (buffer);
bpf = interaudiosrc->info.bpf;
if (n < period_samples) {
GstMapInfo map;
GstMemory *mem;
GST_DEBUG_OBJECT (interaudiosrc,
"creating %" G_GUINT64_FORMAT " samples of silence",
period_samples - n);
mem = gst_allocator_alloc (NULL, (period_samples - n) * bpf, NULL);
if (gst_memory_map (mem, &map, GST_MAP_WRITE)) {
gst_audio_format_fill_silence (interaudiosrc->info.finfo, map.data,
map.size);
gst_memory_unmap (mem, &map);
}
gst_buffer_prepend_memory (buffer, mem);
}
n = period_samples;
GST_BUFFER_OFFSET (buffer) = interaudiosrc->n_samples;
GST_BUFFER_OFFSET_END (buffer) = interaudiosrc->n_samples + n;
GST_BUFFER_TIMESTAMP (buffer) = interaudiosrc->timestamp_offset +
gst_util_uint64_scale (interaudiosrc->n_samples, GST_SECOND,
interaudiosrc->info.rate);
GST_DEBUG_OBJECT (interaudiosrc, "create ts %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
GST_BUFFER_DURATION (buffer) = interaudiosrc->timestamp_offset +
gst_util_uint64_scale (interaudiosrc->n_samples + n, GST_SECOND,
interaudiosrc->info.rate) - GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DISCONT);
if (interaudiosrc->n_samples == 0) {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
}
interaudiosrc->n_samples += n;
*buf = buffer;
return GST_FLOW_OK;
}
/* create a socket for connecting to remote server */
static gboolean
gst_neonhttp_src_start (GstBaseSrc * bsrc)
{
GstNeonhttpSrc *src = GST_NEONHTTP_SRC (bsrc);
const gchar *content_length;
gint res;
#ifndef GST_DISABLE_GST_DEBUG
if (src->neon_http_debug)
ne_debug_init (stderr, NE_DBG_HTTP);
#endif
ne_oom_callback (oom_callback);
res = ne_sock_init ();
if (res != 0)
goto init_failed;
res = gst_neonhttp_src_send_request_and_redirect (src,
&src->session, &src->request, 0, src->automatic_redirect);
if (res != NE_OK || !src->session) {
if (res == HTTP_SOCKET_ERROR) {
goto socket_error;
} else if (res == HTTP_REQUEST_WRONG_PROXY) {
goto wrong_proxy;
} else {
goto begin_req_failed;
}
}
content_length = ne_get_response_header (src->request, "Content-Length");
if (content_length)
src->content_size = g_ascii_strtoull (content_length, NULL, 10);
else
src->content_size = -1;
if (TRUE) {
/* Icecast stuff */
const gchar *str_value;
GstTagList *tags;
gchar *iradio_name;
gchar *iradio_url;
gchar *iradio_genre;
gint icy_metaint;
tags = gst_tag_list_new_empty ();
str_value = ne_get_response_header (src->request, "icy-metaint");
if (str_value) {
if (sscanf (str_value, "%d", &icy_metaint) == 1) {
GstCaps *icy_caps;
icy_caps = gst_caps_new_simple ("application/x-icy",
"metadata-interval", G_TYPE_INT, icy_metaint, NULL);
gst_base_src_set_caps (GST_BASE_SRC (src), icy_caps);
}
}
/* FIXME: send tags with name, genre, url */
str_value = ne_get_response_header (src->request, "icy-name");
if (str_value) {
iradio_name = gst_neonhttp_src_unicodify (str_value);
if (iradio_name) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_ORGANIZATION,
iradio_name, NULL);
g_free (iradio_name);
}
}
str_value = ne_get_response_header (src->request, "icy-genre");
if (str_value) {
iradio_genre = gst_neonhttp_src_unicodify (str_value);
if (iradio_genre) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_GENRE,
iradio_genre, NULL);
g_free (iradio_genre);
}
}
str_value = ne_get_response_header (src->request, "icy-url");
if (str_value) {
iradio_url = gst_neonhttp_src_unicodify (str_value);
if (iradio_url) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_LOCATION,
iradio_url, NULL);
g_free (iradio_url);
}
}
if (!gst_tag_list_is_empty (tags)) {
GST_DEBUG_OBJECT (src, "pushing tag list %" GST_PTR_FORMAT, tags);
gst_pad_push_event (GST_BASE_SRC_PAD (src), gst_event_new_tag (tags));
} else {
gst_tag_list_unref (tags);
}
}
return TRUE;
/* ERRORS */
init_failed:
{
GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL),
("ne_sock_init() failed: %d", res));
return FALSE;
}
socket_error:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("HTTP Request failed when opening socket: %d", res));
return FALSE;
}
wrong_proxy:
{
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
("Proxy Server URI is invalid - make sure that either both proxy host "
"and port are specified or neither."));
return FALSE;
}
begin_req_failed:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Could not begin request: %d", res));
return FALSE;
}
}
