/******************************************************************************
* gst_tiaudenc1_init
* Initializes a new element instance, instantiates pads and sets the pad
* callback functions.
******************************************************************************/
static void gst_tiaudenc1_init(GstTIAudenc1 *audenc1, GstTIAudenc1Class *gclass)
{
/* Instantiate RAW audio sink pad.
*
* Fixate on our static template caps instead of writing a getcaps
* function, which is overkill for this element.
*/
audenc1->sinkpad =
gst_pad_new_from_static_template(&sink_factory, "sink");
gst_pad_set_setcaps_function(
audenc1->sinkpad, GST_DEBUG_FUNCPTR(gst_tiaudenc1_set_sink_caps));
gst_pad_set_event_function(
audenc1->sinkpad, GST_DEBUG_FUNCPTR(gst_tiaudenc1_sink_event));
gst_pad_set_chain_function(
audenc1->sinkpad, GST_DEBUG_FUNCPTR(gst_tiaudenc1_chain));
gst_pad_fixate_caps(audenc1->sinkpad,
gst_caps_make_writable(
gst_caps_copy(gst_pad_get_pad_template_caps(audenc1->sinkpad))));
/* Instantiate encoded audio source pad.
*
* Fixate on our static template caps instead of writing a getcaps
* function, which is overkill for this element.
*/
audenc1->srcpad =
gst_pad_new_from_static_template(&src_factory, "src");
gst_pad_fixate_caps(audenc1->srcpad,
gst_caps_make_writable(
gst_caps_copy(gst_pad_get_pad_template_caps(audenc1->srcpad))));
/* Add pads to TIAudenc1 element */
gst_element_add_pad(GST_ELEMENT(audenc1), audenc1->sinkpad);
gst_element_add_pad(GST_ELEMENT(audenc1), audenc1->srcpad);
/* Initialize TIAudenc1 state */
g_object_set(audenc1, "engineName", DEFAULT_ENGINE_NAME, (gchar*)NULL);
audenc1->displayBuffer = DEFAULT_DISPLAY_BUFFER;
audenc1->genTimeStamps = DEFAULT_GENTIMESTAMPS;
audenc1->codecName = NULL;
audenc1->hEngine = NULL;
audenc1->hAe = NULL;
audenc1->channels = DEFAULT_NUM_CHANNELES;
audenc1->bitrate = DEFAULT_BITRATE;
audenc1->samplefreq = DEFAULT_SAMPLEFREQ;
audenc1->drainingEOS = FALSE;
audenc1->threadStatus = 0UL;
audenc1->waitOnEncodeThread = NULL;
audenc1->waitOnEncodeDrain = NULL;
audenc1->numOutputBufs = DEFAULT_NUMOUTPUT_BUFS;
audenc1->hOutBufTab = NULL;
audenc1->circBuf = NULL;
gst_tiaudenc1_init_env(audenc1);
}
static void
gst_proxy_pad_do_fixatecaps (GstPad * pad, GstCaps * caps)
{
GstPad *target = gst_proxy_pad_get_target (pad);
if (target) {
gst_pad_fixate_caps (target, caps);
gst_object_unref (target);
}
}
static GstFlowReturn
gst_vdp_vpp_sink_bufferalloc (GstPad * pad, guint64 offset, guint size,
GstCaps * caps, GstBuffer ** buf)
{
GstVdpVideoPostProcess *vpp =
GST_VDP_VIDEO_POST_PROCESS (gst_pad_get_parent (pad));
GstVdpOutputBuffer *outbuf;
GstFlowReturn ret = GST_FLOW_ERROR;
GstVdpDevice *device = NULL;
GstStructure *structure;
gint width, height;
gint chroma_type;
if (!vpp->device) {
/* if we haven't got a device yet we must alloc a buffer downstream to get it */
GstCaps *src_caps = gst_pad_get_allowed_caps (vpp->srcpad);
gst_pad_fixate_caps (vpp->srcpad, src_caps);
ret = gst_pad_alloc_buffer (vpp->srcpad, 0, 0, src_caps,
(GstBuffer **) & outbuf);
gst_caps_unref (src_caps);
if (ret != GST_FLOW_OK)
goto error;
device = outbuf->device;
gst_buffer_unref (GST_BUFFER (outbuf));
} else
device = vpp->device;
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "width", &width) ||
!gst_structure_get_int (structure, "height", &height) ||
!gst_structure_get_int (structure, "chroma-type", &chroma_type))
goto error;
*buf = GST_BUFFER (gst_vdp_video_buffer_new (device,
chroma_type, width, height));
if (*buf == NULL)
goto error;
GST_BUFFER_SIZE (*buf) = size;
GST_BUFFER_OFFSET (*buf) = offset;
gst_buffer_set_caps (*buf, caps);
ret = GST_FLOW_OK;
error:
gst_object_unref (vpp);
return ret;
}
static gboolean
sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstStructure *structure;
GstOmxBaseFilter *omx_base;
GOmxCore *gomx;
gint rate = 0;
omx_base = GST_OMX_BASE_FILTER (GST_PAD_PARENT (pad));
gomx = (GOmxCore *) omx_base->gomx;
GST_INFO_OBJECT (omx_base, "setcaps (sink): %" GST_PTR_FORMAT, caps);
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "rate", &rate);
/* Input port configuration. */
{
OMX_AUDIO_PARAM_PCMMODETYPE param;
G_OMX_INIT_PARAM (param);
param.nPortIndex = omx_base->out_port->port_index;
OMX_GetParameter (gomx->omx_handle, OMX_IndexParamAudioPcm, ¶m);
param.nSamplingRate = rate;
OMX_SetParameter (gomx->omx_handle, OMX_IndexParamAudioPcm, ¶m);
}
/* set caps on the srcpad */
{
GstCaps *tmp_caps;
tmp_caps = gst_pad_get_allowed_caps (omx_base->srcpad);
tmp_caps = gst_caps_make_writable (tmp_caps);
gst_caps_truncate (tmp_caps);
gst_pad_fixate_caps (omx_base->srcpad, tmp_caps);
if (gst_caps_is_fixed (tmp_caps)) {
GST_INFO_OBJECT (omx_base, "fixated to: %" GST_PTR_FORMAT, tmp_caps);
gst_pad_set_caps (omx_base->srcpad, tmp_caps);
}
gst_caps_unref (tmp_caps);
}
return gst_pad_set_caps (pad, caps);
}
gboolean
gst_base_video_decoder_set_src_caps (GstBaseVideoDecoder * base_video_decoder)
{
GstCaps *caps;
GstVideoState *state = &base_video_decoder->state;
if (base_video_decoder->have_src_caps)
return TRUE;
caps = gst_pad_get_allowed_caps (base_video_decoder->srcpad);
if (!caps)
goto null_allowed_caps;
if (gst_caps_is_empty (caps))
goto empty_allowed_caps;
gst_caps_set_simple (caps,
"width", G_TYPE_INT, state->width,
"height", G_TYPE_INT, state->height,
"pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n, state->par_d,
"interlaced", G_TYPE_BOOLEAN, state->interlaced, NULL);
if (state->fps_d != 0)
gst_caps_set_simple (caps,
"framerate", GST_TYPE_FRACTION, state->fps_n, state->fps_d, NULL);
gst_pad_fixate_caps (base_video_decoder->srcpad, caps);
GST_DEBUG ("setting caps %" GST_PTR_FORMAT, caps);
base_video_decoder->have_src_caps =
gst_pad_set_caps (GST_BASE_VIDEO_DECODER_SRC_PAD (base_video_decoder),
caps);
gst_caps_unref (caps);
return base_video_decoder->have_src_caps;
null_allowed_caps:
GST_ERROR_OBJECT (base_video_decoder,
"Got null from gst_pad_get_allowed_caps");
return FALSE;
empty_allowed_caps:
GST_ERROR_OBJECT (base_video_decoder,
"Got EMPTY caps from gst_pad_get_allowed_caps");
gst_caps_unref (caps);
return FALSE;
}
static gboolean
start_image_capture (GstWrapperCameraBinSrc * self)
{
GstBaseCameraSrc *bcamsrc = GST_BASE_CAMERA_SRC (self);
GstPhotography *photography = gst_base_camera_src_get_photography (bcamsrc);
gboolean ret = FALSE;
GstCaps *caps;
GST_DEBUG_OBJECT (self, "Starting image capture");
if (self->image_renegotiate) {
/* clean capsfilter caps so they don't interfere here */
g_object_set (self->src_filter, "caps", NULL, NULL);
if (self->src_zoom_filter)
g_object_set (self->src_zoom_filter, "caps", NULL, NULL);
caps = gst_pad_get_allowed_caps (self->imgsrc);
caps = gst_caps_make_writable (caps);
gst_pad_fixate_caps (self->imgsrc, caps);
gst_caps_replace (&self->image_capture_caps, caps);
gst_caps_unref (caps);
self->image_renegotiate = FALSE;
}
if (photography) {
GST_DEBUG_OBJECT (self, "prepare image capture caps %" GST_PTR_FORMAT,
self->image_capture_caps);
ret = gst_photography_prepare_for_capture (photography,
(GstPhotoCapturePrepared) img_capture_prepared,
self->image_capture_caps, self);
} else {
g_mutex_unlock (bcamsrc->capturing_mutex);
gst_wrapper_camera_bin_reset_video_src_caps (self,
self->image_capture_caps);
g_mutex_lock (bcamsrc->capturing_mutex);
ret = TRUE;
}
return ret;
}
static gboolean
gst_wrapper_camera_bin_src_start_capture (GstBaseCameraSrc * camerasrc)
{
GstWrapperCameraBinSrc *src = GST_WRAPPER_CAMERA_BIN_SRC (camerasrc);
/* TODO should we access this directly? Maybe a macro is better? */
if (src->mode == MODE_IMAGE) {
start_image_capture (src);
src->image_capture_count = 1;
} else if (src->mode == MODE_VIDEO) {
GstCaps *caps = NULL;
g_mutex_unlock (camerasrc->capturing_mutex);
gst_wrapper_camera_bin_reset_video_src_caps (src, NULL);
g_mutex_lock (camerasrc->capturing_mutex);
if (src->video_renegotiate) {
/* clean capsfilter caps so they don't interfere here */
g_object_set (src->src_filter, "caps", NULL, NULL);
if (src->src_zoom_filter)
g_object_set (src->src_zoom_filter, "caps", NULL, NULL);
caps = gst_pad_get_allowed_caps (src->vidsrc);
caps = gst_caps_make_writable (caps);
gst_pad_fixate_caps (src->vidsrc, caps);
GST_DEBUG_OBJECT (src, "Vidsrc caps fixated to %" GST_PTR_FORMAT, caps);
src->video_renegotiate = FALSE;
g_mutex_unlock (camerasrc->capturing_mutex);
gst_wrapper_camera_bin_reset_video_src_caps (src, caps);
g_mutex_lock (camerasrc->capturing_mutex);
gst_caps_unref (caps);
}
if (src->video_rec_status == GST_VIDEO_RECORDING_STATUS_DONE) {
src->video_rec_status = GST_VIDEO_RECORDING_STATUS_STARTING;
}
} else {
g_assert_not_reached ();
return FALSE;
}
return TRUE;
}
static gboolean
gst_v4l2src_negotiate (GstBaseSrc * basesrc)
{
GstCaps *thiscaps;
GstCaps *caps = NULL;
GstCaps *peercaps = NULL;
gboolean result = FALSE;
/* first see what is possible on our source pad */
thiscaps = gst_pad_get_caps (GST_BASE_SRC_PAD (basesrc));
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 */
peercaps = gst_pad_peer_get_caps (GST_BASE_SRC_PAD (basesrc));
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);
gst_caps_unref (peercaps);
} else {
/* no peer or peer have ANY caps, work with our own caps then */
caps = thiscaps;
}
if (caps) {
caps = gst_caps_make_writable (caps);
gst_caps_truncate (caps);
/* now fixate */
if (!gst_caps_is_empty (caps)) {
gst_pad_fixate_caps (GST_BASE_SRC_PAD (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 */
if (gst_pad_set_caps (GST_BASE_SRC_PAD (basesrc), caps))
result = TRUE;
}
}
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_jasper_dec_negotiate (GstJasperDec * dec, jas_image_t * image)
{
GstFlowReturn flow_ret = GST_FLOW_OK;
gint width, height, channels;
gint i, j;
gboolean negotiate = FALSE;
jas_clrspc_t clrspc;
GstCaps *allowed_caps, *caps;
width = jas_image_width (image);
height = jas_image_height (image);
channels = jas_image_numcmpts (image);
GST_LOG_OBJECT (dec, "%d x %d, %d components", width, height, channels);
/* jp2c bitstream has no real colour space info (kept in container),
* so decoder may only pretend to know, where it really does not */
if (!jas_clrspc_isunknown (dec->clrspc)) {
clrspc = dec->clrspc;
GST_DEBUG_OBJECT (dec, "forcing container supplied colour space %d",
clrspc);
jas_image_setclrspc (image, clrspc);
} else
clrspc = jas_image_clrspc (image);
if (!width || !height || !channels || jas_clrspc_isunknown (clrspc))
goto fail_image;
if (dec->width != width || dec->height != height ||
dec->channels != channels || dec->clrspc != clrspc)
negotiate = TRUE;
if (channels != 3)
goto not_supported;
for (i = 0; i < channels; i++) {
gint cheight, cwidth, depth, sgnd;
cheight = jas_image_cmptheight (image, i);
cwidth = jas_image_cmptwidth (image, i);
depth = jas_image_cmptprec (image, i);
sgnd = jas_image_cmptsgnd (image, i);
GST_LOG_OBJECT (dec, "image component %d, %dx%d, depth %d, sgnd %d", i,
cwidth, cheight, depth, sgnd);
if (depth != 8 || sgnd)
goto not_supported;
if (dec->cheight[i] != cheight || dec->cwidth[i] != cwidth) {
dec->cheight[i] = cheight;
dec->cwidth[i] = cwidth;
negotiate = TRUE;
}
}
if (!negotiate && dec->format != GST_VIDEO_FORMAT_UNKNOWN)
goto done;
/* clear and refresh to new state */
flow_ret = GST_FLOW_NOT_NEGOTIATED;
dec->format = GST_VIDEO_FORMAT_UNKNOWN;
dec->width = width;
dec->height = height;
dec->channels = channels;
/* retrieve allowed caps, and find the first one that reasonably maps
* to the parameters of the colourspace */
caps = gst_pad_get_allowed_caps (dec->srcpad);
if (!caps) {
GST_DEBUG_OBJECT (dec, "... but no peer, using template caps");
/* need to copy because get_allowed_caps returns a ref,
and get_pad_template_caps doesn't */
caps = gst_caps_copy (gst_pad_get_pad_template_caps (dec->srcpad));
}
/* avoid lists of fourcc, etc */
allowed_caps = gst_caps_normalize (caps);
caps = NULL;
GST_LOG_OBJECT (dec, "allowed source caps %" GST_PTR_FORMAT, allowed_caps);
for (i = 0; i < gst_caps_get_size (allowed_caps); i++) {
GstVideoFormat format;
gboolean ok;
if (caps)
gst_caps_unref (caps);
caps = gst_caps_copy_nth (allowed_caps, i);
/* sigh, ds and _parse_caps need fixed caps for parsing, fixate */
gst_pad_fixate_caps (dec->srcpad, caps);
GST_LOG_OBJECT (dec, "checking caps %" GST_PTR_FORMAT, caps);
if (!gst_video_format_parse_caps (caps, &format, NULL, NULL))
continue;
if (gst_video_format_is_rgb (format) &&
jas_clrspc_fam (clrspc) == JAS_CLRSPC_FAM_RGB) {
GST_DEBUG_OBJECT (dec, "trying RGB");
if ((dec->cmpt[0] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_RGB_R))) < 0 ||
(dec->cmpt[1] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_RGB_G))) < 0 ||
(dec->cmpt[2] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_RGB_B))) < 0) {
GST_DEBUG_OBJECT (dec, "missing RGB color component");
continue;
}
} else if (gst_video_format_is_yuv (format) &&
jas_clrspc_fam (clrspc) == JAS_CLRSPC_FAM_YCBCR) {
GST_DEBUG_OBJECT (dec, "trying YUV");
if ((dec->cmpt[0] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_YCBCR_Y))) < 0 ||
(dec->cmpt[1] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_YCBCR_CB))) < 0 ||
(dec->cmpt[2] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_YCBCR_CR))) < 0) {
GST_DEBUG_OBJECT (dec, "missing YUV color component");
continue;
}
} else
continue;
/* match format with validity checks */
ok = TRUE;
for (j = 0; j < channels; j++) {
gint cmpt;
cmpt = dec->cmpt[j];
if (dec->cwidth[cmpt] != gst_video_format_get_component_width (format, j,
width) ||
dec->cheight[cmpt] != gst_video_format_get_component_height (format,
j, height))
ok = FALSE;
}
/* commit to this format */
if (ok) {
dec->format = format;
break;
}
}
if (caps)
gst_caps_unref (caps);
gst_caps_unref (allowed_caps);
if (dec->format != GST_VIDEO_FORMAT_UNKNOWN) {
/* cache some video format properties */
for (j = 0; j < channels; ++j) {
dec->offset[j] = gst_video_format_get_component_offset (dec->format, j,
dec->width, dec->height);
dec->inc[j] = gst_video_format_get_pixel_stride (dec->format, j);
dec->stride[j] = gst_video_format_get_row_stride (dec->format, j,
dec->width);
}
dec->image_size = gst_video_format_get_size (dec->format, width, height);
dec->alpha = gst_video_format_has_alpha (dec->format);
if (dec->buf)
g_free (dec->buf);
dec->buf = g_new0 (glong, dec->width);
caps = gst_video_format_new_caps (dec->format, dec->width, dec->height,
dec->framerate_numerator, dec->framerate_denominator, 1, 1);
GST_DEBUG_OBJECT (dec, "Set format to %d, size to %dx%d", dec->format,
dec->width, dec->height);
if (!gst_pad_set_caps (dec->srcpad, caps))
flow_ret = GST_FLOW_NOT_NEGOTIATED;
else
flow_ret = GST_FLOW_OK;
gst_caps_unref (caps);
}
done:
return flow_ret;
/* ERRORS */
fail_image:
{
GST_DEBUG_OBJECT (dec, "Failed to process decoded image.");
flow_ret = GST_FLOW_NOT_NEGOTIATED;
goto done;
}
not_supported:
{
GST_DEBUG_OBJECT (dec, "Decoded image has unsupported colour space.");
GST_ELEMENT_ERROR (dec, STREAM, DECODE, (NULL), ("Unsupported colorspace"));
flow_ret = GST_FLOW_ERROR;
goto done;
}
}
static gboolean
gst_vdp_vpp_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstVdpVideoPostProcess *vpp =
GST_VDP_VIDEO_POST_PROCESS (gst_pad_get_parent (pad));
GstStructure *structure;
GstCaps *video_caps = NULL;
gboolean res = FALSE;
GstCaps *allowed_caps, *output_caps, *src_caps;
/* check if the input is non native */
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_name (structure, "video/x-raw-yuv")) {
if (!gst_structure_get_fourcc (structure, "format", &vpp->fourcc))
goto done;
vpp->native_input = FALSE;
video_caps = gst_vdp_yuv_to_video_caps (caps);
if (!video_caps)
goto done;
if (!vpp->vpool)
vpp->vpool = gst_vdp_video_buffer_pool_new (vpp->device);
gst_vdp_buffer_pool_set_caps (vpp->vpool, video_caps);
} else {
vpp->native_input = TRUE;
video_caps = gst_caps_ref (caps);
if (vpp->vpool) {
g_object_unref (vpp->vpool);
vpp->vpool = NULL;
}
}
structure = gst_caps_get_structure (video_caps, 0);
if (!gst_structure_get_int (structure, "width", &vpp->width) ||
!gst_structure_get_int (structure, "height", &vpp->height) ||
!gst_structure_get_int (structure, "chroma-type",
(gint *) & vpp->chroma_type))
goto done;
/* get interlaced flag */
gst_structure_get_boolean (structure, "interlaced", &vpp->interlaced);
/* extract par */
if (gst_structure_has_field_typed (structure, "pixel-aspect-ratio",
GST_TYPE_FRACTION)) {
gst_structure_get_fraction (structure, "pixel-aspect-ratio", &vpp->par_n,
&vpp->par_d);
vpp->got_par = TRUE;
} else
vpp->got_par = FALSE;
allowed_caps = gst_pad_get_allowed_caps (vpp->srcpad);
if (G_UNLIKELY (!allowed_caps))
goto null_allowed_caps;
if (G_UNLIKELY (gst_caps_is_empty (allowed_caps)))
goto empty_allowed_caps;
GST_DEBUG ("allowed_caps: %" GST_PTR_FORMAT, allowed_caps);
output_caps = gst_vdp_video_to_output_caps (video_caps);
src_caps = gst_caps_intersect (output_caps, allowed_caps);
gst_caps_unref (allowed_caps);
gst_caps_unref (output_caps);
if (gst_caps_is_empty (src_caps))
goto not_negotiated;
gst_pad_fixate_caps (vpp->srcpad, src_caps);
if (gst_vdp_vpp_is_interlaced (vpp)) {
gint fps_n, fps_d;
if (gst_structure_get_fraction (structure, "framerate", &fps_n, &fps_d)) {
gst_fraction_double (&fps_n, &fps_d);
gst_caps_set_simple (src_caps, "framerate", GST_TYPE_FRACTION, fps_n,
fps_d, NULL);
vpp->field_duration = gst_util_uint64_scale (GST_SECOND, fps_d, fps_n);
}
gst_caps_set_simple (src_caps, "interlaced", G_TYPE_BOOLEAN, FALSE, NULL);
}
GST_DEBUG ("src_caps: %" GST_PTR_FORMAT, src_caps);
res = gst_pad_set_caps (vpp->srcpad, src_caps);
gst_caps_unref (src_caps);
done:
gst_object_unref (vpp);
if (video_caps)
gst_caps_unref (video_caps);
return res;
null_allowed_caps:
GST_ERROR_OBJECT (vpp, "Got null from gst_pad_get_allowed_caps");
goto done;
empty_allowed_caps:
GST_ERROR_OBJECT (vpp, "Got EMPTY caps from gst_pad_get_allowed_caps");
gst_caps_unref (allowed_caps);
goto done;
not_negotiated:
gst_caps_unref (src_caps);
GST_ERROR_OBJECT (vpp, "Couldn't find suitable output format");
goto done;
}
/* 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)
{
GstCaps *thiscaps;
GstCaps *caps = NULL;
GstCaps *peercaps = NULL;
gboolean result = FALSE;
/* first see what is possible on our source pad */
thiscaps = gst_pad_get_caps_reffed (GST_BASE_SRC_PAD (basesrc));
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_get_caps_reffed (GST_BASE_SRC_PAD (basesrc));
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_make_writable (caps);
gst_caps_truncate (caps);
/* now fixate */
if (!gst_caps_is_empty (caps)) {
gst_pad_fixate_caps (GST_BASE_SRC_PAD (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 (GST_PULSESRC_CAST (basesrc), caps);
if (result)
result = gst_pad_set_caps (GST_BASE_SRC_PAD (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 gboolean
gst_xvidenc_setcaps (GstPad * pad, GstCaps * vscaps)
{
GstXvidEnc *xvidenc;
GstStructure *structure;
gint w, h;
const GValue *fps, *par;
gint xvid_cs = -1;
xvidenc = GST_XVIDENC (GST_PAD_PARENT (pad));
/* if there's something old around, remove it */
if (xvidenc->handle) {
gst_xvidenc_flush_buffers (xvidenc, TRUE);
xvid_encore (xvidenc->handle, XVID_ENC_DESTROY, NULL, NULL);
xvidenc->handle = NULL;
}
structure = gst_caps_get_structure (vscaps, 0);
if (!gst_structure_get_int (structure, "width", &w) ||
!gst_structure_get_int (structure, "height", &h)) {
return FALSE;
}
fps = gst_structure_get_value (structure, "framerate");
if (fps == NULL || !GST_VALUE_HOLDS_FRACTION (fps)) {
GST_WARNING_OBJECT (pad, "no framerate specified, or not a GstFraction");
return FALSE;
}
/* optional par info */
par = gst_structure_get_value (structure, "pixel-aspect-ratio");
xvid_cs = gst_xvid_structure_to_csp (structure);
if (xvid_cs == -1) {
gchar *sstr;
sstr = gst_structure_to_string (structure);
GST_DEBUG_OBJECT (xvidenc, "Did not find xvid colourspace for caps %s",
sstr);
g_free (sstr);
return FALSE;
}
xvidenc->csp = xvid_cs;
xvidenc->width = w;
xvidenc->height = h;
xvidenc->fbase = gst_value_get_fraction_numerator (fps);
xvidenc->fincr = gst_value_get_fraction_denominator (fps);
if ((par != NULL) && GST_VALUE_HOLDS_FRACTION (par)) {
xvidenc->par_width = gst_value_get_fraction_numerator (par);
xvidenc->par_height = gst_value_get_fraction_denominator (par);
} else {
xvidenc->par_width = 1;
xvidenc->par_height = 1;
}
/* wipe xframe cache given possible change caps properties */
g_free (xvidenc->xframe_cache);
xvidenc->xframe_cache = NULL;
if (gst_xvidenc_setup (xvidenc)) {
gboolean ret = FALSE;
GstCaps *new_caps = NULL, *allowed_caps;
/* please downstream with preferred caps */
allowed_caps = gst_pad_get_allowed_caps (xvidenc->srcpad);
GST_DEBUG_OBJECT (xvidenc, "allowed caps: %" GST_PTR_FORMAT, allowed_caps);
if (allowed_caps && !gst_caps_is_empty (allowed_caps)) {
new_caps = gst_caps_copy_nth (allowed_caps, 0);
} else {
new_caps = gst_caps_new_simple ("video/x-xvid", NULL);
}
if (allowed_caps)
gst_caps_unref (allowed_caps);
gst_caps_set_simple (new_caps,
"width", G_TYPE_INT, w, "height", G_TYPE_INT, h,
"framerate", GST_TYPE_FRACTION, xvidenc->fbase, xvidenc->fincr,
"pixel-aspect-ratio", GST_TYPE_FRACTION,
xvidenc->par_width, xvidenc->par_height, NULL);
/* just to be sure */
gst_pad_fixate_caps (xvidenc->srcpad, new_caps);
if (xvidenc->used_profile != 0) {
switch (xvidenc->used_profile) {
case XVID_PROFILE_S_L0:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING, "simple",
"level", G_TYPE_STRING, "0", NULL);
break;
case XVID_PROFILE_S_L1:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING, "simple",
"level", G_TYPE_STRING, "1", NULL);
break;
case XVID_PROFILE_S_L2:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING, "simple",
"level", G_TYPE_STRING, "2", NULL);
break;
case XVID_PROFILE_S_L3:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING, "simple",
"level", G_TYPE_STRING, "3", NULL);
break;
/* case XVID_PROFILE_S_L4a:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING, "simple",
"level", G_TYPE_STRING, "4a", NULL);
break;
case XVID_PROFILE_S_L5:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING, "simple",
"level", G_TYPE_STRING, "5", NULL);
break;
case XVID_PROFILE_S_L6:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING, "simple",
"level", G_TYPE_STRING, "6", NULL);
break;*/
case XVID_PROFILE_ARTS_L1:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING,
"advanced-real-time-simple", "level", G_TYPE_STRING, "1", NULL);
break;
case XVID_PROFILE_ARTS_L2:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING,
"advanced-real-time-simple", "level", G_TYPE_STRING, "2", NULL);
break;
case XVID_PROFILE_ARTS_L3:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING,
"advanced-real-time-simple", "level", G_TYPE_STRING, "3", NULL);
break;
case XVID_PROFILE_ARTS_L4:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING,
"advanced-real-time-simple", "level", G_TYPE_STRING, "4", NULL);
break;
case XVID_PROFILE_AS_L0:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING,
"advanced-simple", "level", G_TYPE_STRING, "0", NULL);
break;
case XVID_PROFILE_AS_L1:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING,
"advanced-simple", "level", G_TYPE_STRING, "1", NULL);
break;
case XVID_PROFILE_AS_L2:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING,
"advanced-simple", "level", G_TYPE_STRING, "2", NULL);
break;
case XVID_PROFILE_AS_L3:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING,
"advanced-simple", "level", G_TYPE_STRING, "3", NULL);
break;
case XVID_PROFILE_AS_L4:
gst_caps_set_simple (new_caps, "profile", G_TYPE_STRING,
"advanced-simple", "level", G_TYPE_STRING, "4", NULL);
break;
default:
g_assert_not_reached ();
break;
}
}
/* src pad should accept anyway */
ret = gst_pad_set_caps (xvidenc->srcpad, new_caps);
gst_caps_unref (new_caps);
if (!ret && xvidenc->handle) {
xvid_encore (xvidenc->handle, XVID_ENC_DESTROY, NULL, NULL);
xvidenc->handle = NULL;
}
return ret;
} else /* setup did not work out */
return FALSE;
}
static gboolean
gst_droid_cam_src_vfsrc_negotiate (GstDroidCamSrc * src)
{
GstCaps *caps;
GstCaps *peer;
GstCaps *common;
gboolean ret;
GstDroidCamSrcClass *klass;
GST_DEBUG_OBJECT (src, "vfsrc negotiate");
klass = GST_DROID_CAM_SRC_GET_CLASS (src);
caps = gst_droid_cam_src_vfsrc_getcaps (src->vfsrc);
if (!caps || gst_caps_is_empty (caps)) {
GST_ELEMENT_ERROR (src, STREAM, FORMAT,
("Failed to get any supported caps"), (NULL));
if (caps) {
gst_caps_unref (caps);
}
ret = FALSE;
goto out;
}
GST_LOG_OBJECT (src, "caps %" GST_PTR_FORMAT, caps);
peer = gst_pad_peer_get_caps_reffed (src->vfsrc);
if (!peer || gst_caps_is_empty (peer) || gst_caps_is_any (peer)) {
if (peer) {
gst_caps_unref (peer);
}
gst_caps_unref (caps);
/* Use default. */
GST_CAMERA_BUFFER_POOL_LOCK (src->pool);
caps = gst_caps_new_simple (GST_NATIVE_BUFFER_NAME,
"width", G_TYPE_INT, DEFAULT_VF_WIDTH,
"height", G_TYPE_INT, DEFAULT_VF_HEIGHT,
"framerate", GST_TYPE_FRACTION, DEFAULT_FPS, 1,
"orientation-angle", G_TYPE_INT, src->pool->orientation, NULL);
GST_CAMERA_BUFFER_POOL_UNLOCK (src->pool);
GST_DEBUG_OBJECT (src, "using default caps %" GST_PTR_FORMAT, caps);
ret = gst_pad_set_caps (src->vfsrc, caps);
gst_caps_unref (caps);
goto out;
}
GST_DEBUG_OBJECT (src, "peer caps %" GST_PTR_FORMAT, peer);
common = gst_caps_intersect (caps, peer);
GST_LOG_OBJECT (src, "caps intersection %" GST_PTR_FORMAT, common);
gst_caps_unref (caps);
gst_caps_unref (peer);
if (gst_caps_is_empty (common)) {
GST_ELEMENT_ERROR (src, STREAM, FORMAT, ("No common caps"), (NULL));
gst_caps_unref (common);
ret = FALSE;
goto out;
}
if (!gst_caps_is_fixed (common)) {
gst_pad_fixate_caps (src->vfsrc, common);
}
ret = gst_pad_set_caps (src->vfsrc, common);
gst_caps_unref (common);
out:
if (ret) {
/* set camera parameters */
ret = klass->set_camera_params (src);
}
return ret;
}
