/* Return the possible output caps based on inputs and downstream prefs */
static GstCaps *
_update_caps (GstVideoAggregator * vagg, GstCaps * caps)
{
GstGLStereoMix *mix = GST_GL_STEREO_MIX (vagg);
GList *l;
gint best_width = -1, best_height = -1;
gdouble best_fps = -1, cur_fps;
gint best_fps_n = 0, best_fps_d = 1;
GstVideoInfo *mix_info;
GstCaps *blend_caps, *tmp_caps;
GstCaps *out_caps;
GST_OBJECT_LOCK (vagg);
for (l = GST_ELEMENT (vagg)->sinkpads; l; l = l->next) {
GstVideoAggregatorPad *pad = l->data;
GstVideoInfo tmp = pad->info;
gint this_width, this_height;
gint fps_n, fps_d;
if (!pad->info.finfo)
continue;
/* This can happen if we release a pad and another pad hasn't been negotiated_caps yet */
if (GST_VIDEO_INFO_FORMAT (&pad->info) == GST_VIDEO_FORMAT_UNKNOWN)
continue;
/* Convert to per-view width/height for unpacked forms */
gst_video_multiview_video_info_change_mode (&tmp,
GST_VIDEO_MULTIVIEW_MODE_SEPARATED, GST_VIDEO_MULTIVIEW_FLAGS_NONE);
this_width = GST_VIDEO_INFO_WIDTH (&tmp);
this_height = GST_VIDEO_INFO_HEIGHT (&tmp);
fps_n = GST_VIDEO_INFO_FPS_N (&tmp);
fps_d = GST_VIDEO_INFO_FPS_D (&tmp);
GST_INFO_OBJECT (vagg, "Input pad %" GST_PTR_FORMAT
" w %u h %u", pad, this_width, this_height);
if (this_width == 0 || this_height == 0)
continue;
if (best_width < this_width)
best_width = this_width;
if (best_height < this_height)
best_height = this_height;
if (fps_d == 0)
cur_fps = 0.0;
else
gst_util_fraction_to_double (fps_n, fps_d, &cur_fps);
if (best_fps < cur_fps) {
best_fps = cur_fps;
best_fps_n = fps_n;
best_fps_d = fps_d;
}
/* FIXME: Preserve PAR for at least one input when different sized inputs */
}
GST_OBJECT_UNLOCK (vagg);
mix_info = &mix->mix_info;
gst_video_info_set_format (mix_info, GST_VIDEO_FORMAT_RGBA, best_width,
best_height);
GST_VIDEO_INFO_FPS_N (mix_info) = best_fps_n;
GST_VIDEO_INFO_FPS_D (mix_info) = best_fps_d;
GST_VIDEO_INFO_MULTIVIEW_MODE (mix_info) = GST_VIDEO_MULTIVIEW_MODE_SEPARATED;
GST_VIDEO_INFO_VIEWS (mix_info) = 2;
/* FIXME: If input is marked as flipped or flopped, preserve those flags */
GST_VIDEO_INFO_MULTIVIEW_FLAGS (mix_info) = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
/* Choose our output format based on downstream preferences */
blend_caps = gst_video_info_to_caps (mix_info);
gst_caps_set_features (blend_caps, 0,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_GL_MEMORY));
tmp_caps = get_converted_caps (GST_GL_STEREO_MIX (vagg), blend_caps);
gst_caps_unref (blend_caps);
out_caps = gst_caps_intersect (caps, tmp_caps);
gst_caps_unref (tmp_caps);
GST_DEBUG_OBJECT (vagg, "Possible output caps %" GST_PTR_FORMAT, out_caps);
return out_caps;
}
static gboolean
gst_amc_video_dec_set_src_caps (GstAmcVideoDec * self, GstAmcFormat * format)
{
GstVideoCodecState *output_state;
const gchar *mime;
gint color_format, width, height;
gint stride, slice_height;
gint crop_left, crop_right;
gint crop_top, crop_bottom;
GstVideoFormat gst_format;
GstAmcVideoDecClass *klass = GST_AMC_VIDEO_DEC_GET_CLASS (self);
GError *err = NULL;
gboolean ret;
if (!gst_amc_format_get_int (format, "color-format", &color_format, &err) ||
!gst_amc_format_get_int (format, "width", &width, &err) ||
!gst_amc_format_get_int (format, "height", &height, &err)) {
GST_ERROR_OBJECT (self, "Failed to get output format metadata: %s",
err->message);
g_clear_error (&err);
return FALSE;
}
if (!gst_amc_format_get_int (format, "stride", &stride, &err) ||
!gst_amc_format_get_int (format, "slice-height", &slice_height, &err)) {
GST_ERROR_OBJECT (self, "Failed to get stride and slice-height: %s",
err->message);
g_clear_error (&err);
return FALSE;
}
if (!gst_amc_format_get_int (format, "crop-left", &crop_left, &err) ||
!gst_amc_format_get_int (format, "crop-right", &crop_right, &err) ||
!gst_amc_format_get_int (format, "crop-top", &crop_top, &err) ||
!gst_amc_format_get_int (format, "crop-bottom", &crop_bottom, &err)) {
GST_ERROR_OBJECT (self, "Failed to get crop rectangle: %s", err->message);
g_clear_error (&err);
return FALSE;
}
if (width == 0 || height == 0) {
GST_ERROR_OBJECT (self, "Height or width not set");
return FALSE;
}
if (crop_bottom)
height = height - (height - crop_bottom - 1);
if (crop_top)
height = height - crop_top;
if (crop_right)
width = width - (width - crop_right - 1);
if (crop_left)
width = width - crop_left;
mime = caps_to_mime (self->input_state->caps);
if (!mime) {
GST_ERROR_OBJECT (self, "Failed to convert caps to mime");
return FALSE;
}
gst_format =
gst_amc_color_format_to_video_format (klass->codec_info, mime,
color_format);
if (gst_format == GST_VIDEO_FORMAT_UNKNOWN) {
GST_ERROR_OBJECT (self, "Unknown color format 0x%08x", color_format);
return FALSE;
}
output_state = gst_video_decoder_set_output_state (GST_VIDEO_DECODER (self),
gst_format, width, height, self->input_state);
/* FIXME: Special handling for multiview, untested */
if (color_format == COLOR_QCOM_FormatYVU420SemiPlanar32mMultiView) {
gst_video_multiview_video_info_change_mode (&output_state->info,
GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM, GST_VIDEO_MULTIVIEW_FLAGS_NONE);
}
self->format = gst_format;
if (!gst_amc_color_format_info_set (&self->color_format_info,
klass->codec_info, mime, color_format, width, height, stride,
slice_height, crop_left, crop_right, crop_top, crop_bottom)) {
GST_ERROR_OBJECT (self, "Failed to set up GstAmcColorFormatInfo");
return FALSE;
}
GST_DEBUG_OBJECT (self,
"Color format info: {color_format=%d, width=%d, height=%d, "
"stride=%d, slice-height=%d, crop-left=%d, crop-top=%d, "
"crop-right=%d, crop-bottom=%d, frame-size=%d}",
self->color_format_info.color_format, self->color_format_info.width,
self->color_format_info.height, self->color_format_info.stride,
self->color_format_info.slice_height, self->color_format_info.crop_left,
self->color_format_info.crop_top, self->color_format_info.crop_right,
self->color_format_info.crop_bottom, self->color_format_info.frame_size);
ret = gst_video_decoder_negotiate (GST_VIDEO_DECODER (self));
gst_video_codec_state_unref (output_state);
self->input_state_changed = FALSE;
return ret;
}
