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intervideo: Add support for arbitrary video formats

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This commit is contained in:
Sebastian Dröge 2014-10-22 19:31:31 +02:00
parent 1363a244a0
commit 9bcc1aa274
3 changed files with 32 additions and 20 deletions
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2
gst/inter/gstintervideosink.c
View file

@ -77,7 +77,7 @@ static GstStaticPadTemplate gst_inter_video_sink_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink", GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK, GST_PAD_SINK,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("I420")) GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL))
); );

49
gst/inter/gstintervideosrc.c
View file

@ -78,7 +78,7 @@ static GstStaticPadTemplate gst_inter_video_src_src_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC, GST_PAD_SRC,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("I420")) GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL))
); );
@ -208,18 +208,41 @@ gst_inter_video_src_get_caps (GstBaseSrc * src, GstCaps * filter)
} }
static gboolean static gboolean
gst_inter_video_src_set_caps (GstBaseSrc * src, GstCaps * caps) gst_inter_video_src_set_caps (GstBaseSrc * base, GstCaps * caps)
{ {
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src); GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (base);
GstVideoConverter *converter;
GstVideoFrame src_frame, dest_frame;
GstBuffer *src, *dest;
GstVideoInfo black_info;
GST_DEBUG_OBJECT (intervideosrc, "set_caps"); GST_DEBUG_OBJECT (intervideosrc, "set_caps");
if (!gst_video_info_from_caps (&intervideosrc->info, caps)) { if (!gst_video_info_from_caps (&intervideosrc->info, caps)) {
GST_ERROR_OBJECT (src, "Failed to parse caps %" GST_PTR_FORMAT, caps); GST_ERROR_OBJECT (intervideosrc, "Failed to parse caps %" GST_PTR_FORMAT,
caps);
return FALSE; return FALSE;
} }
return gst_pad_set_caps (src->srcpad, caps); /* Create a black frame */
gst_buffer_replace (&intervideosrc->black_frame, NULL);
gst_video_info_set_format (&black_info, GST_VIDEO_FORMAT_ARGB,
intervideosrc->info.width, intervideosrc->info.height);
black_info.fps_n = intervideosrc->info.fps_n;
black_info.fps_d = intervideosrc->info.fps_d;
src = gst_buffer_new_and_alloc (black_info.size);
dest = gst_buffer_new_and_alloc (intervideosrc->info.size);
gst_buffer_memset (src, 0, 0, black_info.size);
gst_video_frame_map (&src_frame, &black_info, src, GST_MAP_READ);
gst_video_frame_map (&dest_frame, &intervideosrc->info, dest, GST_MAP_WRITE);
converter = gst_video_converter_new (&black_info, &intervideosrc->info, NULL);
gst_video_converter_frame (converter, &dest_frame, &src_frame);
gst_video_converter_free (converter);
gst_video_frame_unmap (&src_frame);
gst_video_frame_unmap (&dest_frame);
intervideosrc->black_frame = dest;
return gst_pad_set_caps (GST_BASE_SRC_PAD (intervideosrc), caps);
} }
static gboolean static gboolean
@ -245,6 +268,7 @@ gst_inter_video_src_stop (GstBaseSrc * src)
gst_inter_surface_unref (intervideosrc->surface); gst_inter_surface_unref (intervideosrc->surface);
intervideosrc->surface = NULL; intervideosrc->surface = NULL;
gst_buffer_replace (&intervideosrc->black_frame, NULL);
return TRUE; return TRUE;
} }
@ -321,20 +345,7 @@ gst_inter_video_src_create (GstBaseSrc * src, guint64 offset, guint size,
} }
if (buffer == NULL) { if (buffer == NULL) {
GstMapInfo map; buffer = gst_buffer_copy (intervideosrc->black_frame);
buffer =
gst_buffer_new_and_alloc (GST_VIDEO_INFO_SIZE (&intervideosrc->info));
gst_buffer_map (buffer, &map, GST_MAP_WRITE);
memset (map.data, 16, GST_VIDEO_INFO_COMP_STRIDE (&intervideosrc->info, 0) *
GST_VIDEO_INFO_COMP_HEIGHT (&intervideosrc->info, 0));
memset (map.data + GST_VIDEO_INFO_COMP_OFFSET (&intervideosrc->info, 1),
128,
2 * GST_VIDEO_INFO_COMP_STRIDE (&intervideosrc->info, 1) *
GST_VIDEO_INFO_COMP_HEIGHT (&intervideosrc->info, 1));
gst_buffer_unmap (buffer, &map);
} }
buffer = gst_buffer_make_writable (buffer); buffer = gst_buffer_make_writable (buffer);

1
gst/inter/gstintervideosrc.h
View file

@ -44,6 +44,7 @@ struct _GstInterVideoSrc
char *channel; char *channel;
GstVideoInfo info; GstVideoInfo info;
GstBuffer *black_frame;
int n_frames; int n_frames;
GstClockTime timestamp_offset; GstClockTime timestamp_offset;
}; };