mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-24 17:20:36 +00:00
Code Issues 1 Projects Releases Wiki Activity

mxfmux: Add support for muxing JPEG2000 code streams

Browse source
This commit is contained in:
Sebastian Dröge 2009-03-11 19:34:12 +01:00
parent 244c0a4707
commit 654f0627e4
1 changed files with 117 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

117
gst/mxf/mxfjpeg2000.c
View file

@ -31,9 +31,11 @@
#endif
#include <gst/gst.h>
#include <gst/video/video.h>
#include <string.h>
#include "mxfjpeg2000.h"
#include "mxfwrite.h"
GST_DEBUG_CATEGORY_EXTERN (mxf_debug);
#define GST_CAT_DEFAULT mxf_debug
@ -202,8 +204,123 @@ static const MXFEssenceElementHandler mxf_jpeg2000_essence_element_handler = {
mxf_jpeg2000_create_caps
};
static GstFlowReturn
mxf_jpeg2000_write_func (GstBuffer * buffer, GstCaps * caps,
gpointer mapping_data, GstAdapter * adapter, GstBuffer ** outbuf,
gboolean flush)
{
*outbuf = buffer;
return GST_FLOW_OK;
}
static const guint8 jpeg2000_essence_container_ul[] = {
0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x07,
0x0d, 0x01, 0x03, 0x01, 0x02, 0x0c, 0x01, 0x00
};
static const guint jpeg2000_picture_essence_coding[] = {
0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x07,
0x04, 0x01, 0x02, 0x02, 0x03, 0x01, 0x01, 0x00
};
static MXFMetadataFileDescriptor *
mxf_jpeg2000_get_descriptor (GstPadTemplate * tmpl, GstCaps * caps,
MXFEssenceElementWriteFunc * handler, gpointer * mapping_data)
{
MXFMetadataRGBAPictureEssenceDescriptor *ret;
GstStructure *s;
guint32 fourcc;
s = gst_caps_get_structure (caps, 0);
if (strcmp (gst_structure_get_name (s), "image/x-jpc") != 0)
return NULL;
if (!gst_structure_get_fourcc (s, "fourcc", &fourcc))
return NULL;
ret = (MXFMetadataRGBAPictureEssenceDescriptor *)
gst_mini_object_new (MXF_TYPE_METADATA_RGBA_PICTURE_ESSENCE_DESCRIPTOR);
memcpy (&ret->parent.parent.essence_container, &jpeg2000_essence_container_ul,
16);
memcpy (&ret->parent.picture_essence_coding, &jpeg2000_picture_essence_coding,
16);
if (fourcc == GST_MAKE_FOURCC ('s', 'R', 'G', 'B')) {
ret->n_pixel_layout = 3;
ret->pixel_layout = g_new0 (guint8, 6);
ret->pixel_layout[0] = 'R';
ret->pixel_layout[1] = 8;
ret->pixel_layout[2] = 'G';
ret->pixel_layout[3] = 8;
ret->pixel_layout[4] = 'B';
ret->pixel_layout[5] = 8;
} else if (fourcc == GST_MAKE_FOURCC ('s', 'Y', 'U', 'V')) {
ret->n_pixel_layout = 3;
ret->pixel_layout = g_new0 (guint8, 6);
ret->pixel_layout[0] = 'Y';
ret->pixel_layout[1] = 8;
ret->pixel_layout[2] = 'U';
ret->pixel_layout[3] = 8;
ret->pixel_layout[4] = 'V';
ret->pixel_layout[5] = 8;
} else {
g_assert_not_reached ();
}
mxf_metadata_generic_picture_essence_descriptor_from_caps (&ret->parent,
caps);
*handler = mxf_jpeg2000_write_func;
return (MXFMetadataFileDescriptor *) ret;
}
static void
mxf_jpeg2000_update_descriptor (MXFMetadataFileDescriptor * d, GstCaps * caps,
gpointer mapping_data, GstBuffer * buf)
{
return;
}
static void
mxf_jpeg2000_get_edit_rate (MXFMetadataFileDescriptor * a, GstCaps * caps,
gpointer mapping_data, GstBuffer * buf, MXFMetadataSourcePackage * package,
MXFMetadataTimelineTrack * track, MXFFraction * edit_rate)
{
(*edit_rate).n = a->sample_rate.n;
(*edit_rate).d = a->sample_rate.d;
}
static guint32
mxf_jpeg2000_get_track_number_template (MXFMetadataFileDescriptor * a,
GstCaps * caps, gpointer mapping_data)
{
return (0x15 << 24) | (0x08 << 8);
}
static MXFEssenceElementWriter mxf_jpeg2000_essence_element_writer = {
mxf_jpeg2000_get_descriptor,
mxf_jpeg2000_update_descriptor,
mxf_jpeg2000_get_edit_rate,
mxf_jpeg2000_get_track_number_template,
NULL,
{{0,}}
};
void
mxf_jpeg2000_init (void)
{
mxf_essence_element_handler_register (&mxf_jpeg2000_essence_element_handler);
mxf_jpeg2000_essence_element_writer.pad_template =
gst_pad_template_new ("jpeg2000_video_sink_%u", GST_PAD_SINK,
GST_PAD_REQUEST,
gst_caps_from_string ("image/x-jpc, fields = 1, width = "
GST_VIDEO_SIZE_RANGE ", height = " GST_VIDEO_SIZE_RANGE
", framerate = " GST_VIDEO_FPS_RANGE
", fourcc = (GstFourcc) { sRGB, sYUV }"));
memcpy (&mxf_jpeg2000_essence_element_writer.data_definition,
mxf_metadata_track_identifier_get (MXF_METADATA_TRACK_PICTURE_ESSENCE),
16);
mxf_essence_element_writer_register (&mxf_jpeg2000_essence_element_writer);
}