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Added new module for common functions. Using GST_TYPE_FRACTION for Exif (S)Rational types.

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Original commit message from CVS:
Added new module for common functions. Using GST_TYPE_FRACTION for Exif (S)Rational types.
This commit is contained in:
Edgard Lima 2007-12-14 18:18:37 +00:00
parent 91bb79004f
commit b2a023be7b
13 changed files with 1312 additions and 1619 deletions
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19
ChangeLog
View file

@ -1,3 +1,22 @@
2007-12-14 Edgard Lima,,,, <edgard.lima@indt.org.br>
* ext/metadata/Makefile.am:
* ext/metadata/TODO:
* ext/metadata/gstmetadata.c:
* ext/metadata/gstmetadatacommon.c:
* ext/metadata/gstmetadatacommon.h:
* ext/metadata/gstmetadatademux.c:
* ext/metadata/gstmetadatademux.h:
* ext/metadata/gstmetadatamux.c:
* ext/metadata/gstmetadatamux.h:
* ext/metadata/gstmetadataparse.c:
* ext/metadata/gstmetadataparse.h:
* ext/metadata/metadataexif.c:
* ext/metadata/metadatatags.c:
* ext/metadata/test/metadata_editor.c:
Added new module for common functions. Using GST_TYPE_FRACTION for
Exif (S)Rational types.
2007-12-14 Zaheer Abbas Merali <zaheerabbas at merali dot org>
* gst/mpegtsparse/mpegtspacketizer.c:

9
ext/metadata/Makefile.am
View file

@ -1,7 +1,8 @@
plugin_LTLIBRARIES = libgstmetadata.la
libgstmetadata_la_SOURCES = gstmetadata.c \
gstmetadataparse.c \
gstmetadatacommon.c \
gstmetadatademux.c \
metadata.c \
metadataparsejpeg.c \
metadatamuxjpeg.c \
@ -15,11 +16,15 @@ libgstmetadata_la_SOURCES = gstmetadata.c \
gstmetadatamux.c \
metadatatags.c
libgstmetadata_ladir = $(includedir)/gstreamer-@GST_MAJORMINOR@/metadata
libgstmetadata_la_HEADERS = metadatatags.h
libgstmetadata_la_CFLAGS = $(METADATA_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS)
libgstmetadata_la_LIBADD = $(METADATA_LIBS) -lgsttag-@GST_MAJORMINOR@ $(GST_PLUGINS_BASE_LIBS) $(GST_BASE_LIBS)
libgstmetadata_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstmetadataparse.h \
noinst_HEADERS = gstmetadatademux.h \
gstmetadatacommon.h \
metadata.h \
metadataparsejpeg.h \
metadatamuxjpeg.h \

10
ext/metadata/TODO
View file

@ -4,10 +4,9 @@ This file contains a list of things to be done as well some open issues (questio
TODO:
1- Add individual tags IPTC and XMP (and more for EXIF)
2- Use GST_TYPE_FRACTION for Rational and SRational (metadataexif.c)
3- Get properties like 'width' and 'height' from caps
4- Review the code (in order to move to gst-plugins-good)
5- Document how the plugin works (atchitecture and interaction beteween modules)
2- Get properties like 'width' and 'height' from caps
3- Review the code (in order to move to gst-plugins-good)
4- Document how the plugin works (atchitecture and interaction beteween modules)
OPEN ISSUES:
@ -15,4 +14,7 @@ OPEN ISSUES:
2- How to change metadata when the orignal image was modified.
ex: file.jpeg has XMP, then we do filesrc ! metadataparse ! jpegdec ! pngenc ! metadatamux ! files
is the metadata still valid? which fields are no valid anymore?
3- Add GST_TYPE_FRACTION support for GStreamer TAGS
4- Have parse, demux and mux? (or just demux and must) see issue (5)
5- After decided issue (4) put more things to gstmetadatacommon (or else create a Class)

6
ext/metadata/gstmetadata.c
View file

@ -49,7 +49,7 @@
#include "metadatatags.h"
extern gboolean gst_metadata_parse_plugin_init (GstPlugin * plugin);
extern gboolean gst_metadata_demux_plugin_init (GstPlugin * plugin);
extern gboolean gst_metadata_mux_plugin_init (GstPlugin * plugin);
GST_DEBUG_CATEGORY_EXTERN (gst_metadata_exif_debug);
@ -71,7 +71,7 @@ plugin_init (GstPlugin * plugin)
metadata_tags_register ();
ret = gst_metadata_parse_plugin_init (plugin);
ret = gst_metadata_demux_plugin_init (plugin);
ret = ret && gst_metadata_mux_plugin_init (plugin);
@ -82,5 +82,5 @@ plugin_init (GstPlugin * plugin)
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"metadata",
"Metadata (EXIF, IPTC and XMP) image (JPEG, TIFF) parser and muxer",
"Metadata (EXIF, IPTC and XMP) image (JPEG, TIFF) demuxer and muxer",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

631
ext/metadata/gstmetadatacommon.c Normal file
View file

@ -0,0 +1,631 @@
/*
* GStreamer
* Copyright 2007 Edgard Lima <edgard.lima@indt.org.br>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:metadatamux-metadata
*
* <refsect2>
* <title>Example launch line</title>
* <para>
* <programlisting>
* gst-launch -v -m filesrc location=./test.jpeg ! metadatamux ! fakesink silent=TRUE
* </programlisting>
* </para>
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
/*
* static functions declaration
*/
#include "gstmetadatacommon.h"
/*
* offset - offset of buffer in original stream
* size - size of buffer
* seg_offset - offset of segment in original stream
* seg_size - size of segment
* boffset - offset inside buffer where segment starts (-1 for no intersection)
* bsize - size of intersection
* seg_binter - if segment start inside buffer is zero. if segment start before
* buffer and intersect, it is the offset inside segment.
*
* ret:
* -1 - segment before buffer
* 0 - segment intersects
* 1 - segment after buffer
*/
static int
gst_metadata_common_get_strip_seg (const gint64 offset, guint32 size,
const gint64 seg_offset, const guint32 seg_size,
gint64 * boffset, guint32 * bsize, guint32 * seg_binter)
{
int ret = -1;
*boffset = -1;
*bsize = 0;
*seg_binter = -1;
/* all segment after buffer */
if (seg_offset >= offset + size) {
ret = 1;
goto done;
}
if (seg_offset < offset) {
/* segment start somewhere before buffer */
/* all segment before buffer */
if (seg_offset + seg_size <= offset) {
ret = -1;
goto done;
}
*seg_binter = offset - seg_offset;
*boffset = 0;
/* FIXME : optimize to >= size -> = size */
if (seg_offset + seg_size >= offset + size) {
/* segment cover all buffer */
*bsize = size;
} else {
/* segment goes from start of buffer to somewhere before end */
*bsize = seg_size - *seg_binter;
}
ret = 0;
} else {
/* segment start somewhere into buffer */
*boffset = seg_offset - offset;
*seg_binter = 0;
if (seg_offset + seg_size <= offset + size) {
/* all segment into buffer */
*bsize = seg_size;
} else {
*bsize = size - *boffset;
}
ret = 0;
}
done:
return ret;
}
/*
* extern functions declaration
*/
void
gst_metadata_common_init (GstMetadataCommon * common, gboolean parse,
guint8 options)
{
metadata_init (&common->metadata, parse, options);
}
void
gst_metadata_common_dispose (GstMetadataCommon * common)
{
if (common->append_buffer) {
gst_buffer_unref (common->append_buffer);
common->append_buffer = NULL;
}
metadata_dispose (&common->metadata);
}
/*
/*
* TRUE -> buffer striped or injeted
* FALSE -> buffer unmodified
*/
gboolean
gst_metadata_common_strip_push_buffer (GstMetadataCommon * common,
gint64 offset_orig, GstBuffer ** prepend, GstBuffer ** buf)
{
MetadataChunk *strip = common->metadata.strip_chunks.chunk;
MetadataChunk *inject = common->metadata.inject_chunks.chunk;
const gsize strip_len = common->metadata.strip_chunks.len;
const gsize inject_len = common->metadata.inject_chunks.len;
gboolean buffer_reallocated = FALSE;
guint32 size_buf_in = GST_BUFFER_SIZE (*buf);
gint64 *boffset_strip = NULL;
guint32 *bsize_strip = NULL;
guint32 *seg_binter_strip = NULL;
int i, j;
gboolean need_free_strip = FALSE;
guint32 striped_bytes = 0;
guint32 injected_bytes = 0;
guint32 prepend_size = prepend && *prepend ? GST_BUFFER_SIZE (*prepend) : 0;
if (inject_len) {
for (i = 0; i < inject_len; ++i) {
int res;
if (inject[i].offset_orig >= offset_orig) {
if (inject[i].offset_orig < offset_orig + size_buf_in) {
injected_bytes += inject[i].size;
} else {
/* segment is after size (segments are sorted) */
break;
}
}
}
}
/*
* strip segments
*/
if (strip_len == 0)
goto inject;
if (G_UNLIKELY (strip_len > 16)) {
boffset_strip = g_new (gint64, strip_len);
bsize_strip = g_new (guint32, strip_len);
seg_binter_strip = g_new (guint32, strip_len);
need_free_strip = TRUE;
} else {
boffset_strip = g_alloca (sizeof (boffset_strip[0]) * strip_len);
bsize_strip = g_alloca (sizeof (bsize_strip[0]) * strip_len);
seg_binter_strip = g_alloca (sizeof (seg_binter_strip[0]) * strip_len);
}
memset (bsize_strip, 0x00, sizeof (bsize_strip[0]) * strip_len);
for (i = 0; i < strip_len; ++i) {
int res;
res = gst_metadata_common_get_strip_seg (offset_orig, size_buf_in,
strip[i].offset_orig, strip[i].size, &boffset_strip[i], &bsize_strip[i],
&seg_binter_strip[i]);
/* segment is after size (segments are sorted) */
striped_bytes += bsize_strip[i];
if (res > 0) {
break;
}
}
if (striped_bytes) {
guint8 *data;
if (!buffer_reallocated) {
buffer_reallocated = TRUE;
if (injected_bytes + prepend_size > striped_bytes) {
GstBuffer *new_buf =
gst_buffer_new_and_alloc (GST_BUFFER_SIZE (*buf) + injected_bytes +
prepend_size - striped_bytes);
memcpy (GST_BUFFER_DATA (new_buf), GST_BUFFER_DATA (*buf),
GST_BUFFER_SIZE (*buf));
gst_buffer_unref (*buf);
*buf = new_buf;
} else if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY)) {
GstBuffer *new_buf = gst_buffer_copy (*buf);
gst_buffer_unref (*buf);
*buf = new_buf;
GST_BUFFER_FLAG_UNSET (*buf, GST_BUFFER_FLAG_READONLY);
GST_BUFFER_SIZE (*buf) += injected_bytes + prepend_size - striped_bytes;
}
}
data = GST_BUFFER_DATA (*buf);
striped_bytes = 0;
for (i = 0; i < strip_len; ++i) {
/* intersect */
if (bsize_strip[i]) {
memmove (data + boffset_strip[i] - striped_bytes,
data + boffset_strip[i] + bsize_strip[i] - striped_bytes,
size_buf_in - boffset_strip[i] - bsize_strip[i]);
striped_bytes += bsize_strip[i];
}
}
size_buf_in -= striped_bytes;
}
inject:
/*
* inject segments
*/
if (inject_len) {
guint8 *data;
guint32 striped_so_far;
if (!buffer_reallocated) {
buffer_reallocated = TRUE;
if (injected_bytes + prepend_size > striped_bytes) {
GstBuffer *new_buf =
gst_buffer_new_and_alloc (GST_BUFFER_SIZE (*buf) + injected_bytes +
prepend_size - striped_bytes);
memcpy (GST_BUFFER_DATA (new_buf), GST_BUFFER_DATA (*buf),
GST_BUFFER_SIZE (*buf));
gst_buffer_unref (*buf);
*buf = new_buf;
} else if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY)) {
GstBuffer *new_buf = gst_buffer_copy (*buf);
gst_buffer_unref (*buf);
*buf = new_buf;
GST_BUFFER_FLAG_UNSET (*buf, GST_BUFFER_FLAG_READONLY);
GST_BUFFER_SIZE (*buf) += injected_bytes + prepend_size - striped_bytes;
}
}
data = GST_BUFFER_DATA (*buf);
injected_bytes = 0;
striped_so_far = 0;
j = 0;
for (i = 0; i < inject_len; ++i) {
int res;
while (j < strip_len) {
if (strip[j].offset_orig < inject[i].offset_orig)
striped_so_far += bsize_strip[j++];
else
break;
}
if (inject[i].offset_orig >= offset_orig) {
if (inject[i].offset_orig <
offset_orig + size_buf_in + striped_bytes - injected_bytes) {
/* insert */
guint32 buf_off =
inject[i].offset_orig - offset_orig - striped_so_far +
injected_bytes;
memmove (data + buf_off + inject[i].size, data + buf_off,
size_buf_in - buf_off);
memcpy (data + buf_off, inject[i].data, inject[i].size);
injected_bytes += inject[i].size;
size_buf_in += inject[i].size;
} else {
/* segment is after size (segments are sorted) */
break;
}
}
}
}
done:
if (prepend_size) {
if (injected_bytes == 0 && striped_bytes == 0) {
GstBuffer *new_buf =
gst_buffer_new_and_alloc (size_buf_in + prepend_size);
memcpy (GST_BUFFER_DATA (new_buf) + prepend_size, GST_BUFFER_DATA (*buf),
size_buf_in);
gst_buffer_unref (*buf);
*buf = new_buf;
} else {
memmove (GST_BUFFER_DATA (*buf) + prepend_size, GST_BUFFER_DATA (*buf),
size_buf_in);
}
memcpy (GST_BUFFER_DATA (*buf), GST_BUFFER_DATA (*prepend), prepend_size);
gst_buffer_unref (*prepend);
*prepend = NULL;
}
GST_BUFFER_SIZE (*buf) = size_buf_in + prepend_size;
if (need_free_strip) {
g_free (boffset_strip);
g_free (bsize_strip);
g_free (seg_binter_strip);
}
return injected_bytes || striped_bytes;
}
/*
* pos - position in stream striped
* orig_pos - position in original stream
* return TRUE - position in original buffer
* FALSE - position in inserted chunk
*/
gboolean
gst_metadata_common_translate_pos_to_orig (GstMetadataCommon * common,
gint64 pos, gint64 * orig_pos, GstBuffer ** buf)
{
MetadataChunk *strip = common->metadata.strip_chunks.chunk;
MetadataChunk *inject = common->metadata.inject_chunks.chunk;
const gsize strip_len = common->metadata.strip_chunks.len;
const gsize inject_len = common->metadata.inject_chunks.len;
const gint64 duration_orig = common->duration_orig;
const gint64 duration = common->duration;
int i;
gboolean ret = TRUE;
guint64 new_buf_size = 0;
guint64 injected_before = 0;
if (G_UNLIKELY (pos == -1)) {
*orig_pos = -1;
return TRUE;
} else if (G_UNLIKELY (pos >= duration)) {
/* this should never happen */
*orig_pos = duration_orig;
return TRUE;
}
/* calculate for injected */
/* just calculate size */
*orig_pos = pos; /* save pos */
for (i = 0; i < inject_len; ++i) {
/* check if pos in inside chunk */
if (inject[i].offset <= pos) {
if (pos < inject[i].offset + inject[i].size) {
/* orig pos points after insert chunk */
new_buf_size += inject[i].size;
/* put pos after current chunk */
pos = inject[i].offset + inject[i].size;
ret = FALSE;
} else {
/* in case pos is not inside a injected chunk */
injected_before += inject[i].size;
}
} else {
break;
}
}
/* alloc buffer and calcute original pos */
if (buf && ret == FALSE) {
guint8 *data;
if (*buf)
gst_buffer_unref (*buf);
*buf = gst_buffer_new_and_alloc (new_buf_size);
data = GST_BUFFER_DATA (*buf);
pos = *orig_pos; /* recover saved pos */
for (i = 0; i < inject_len; ++i) {
if (inject[i].offset > pos) {
break;
}
if (inject[i].offset <= pos && pos < inject[i].offset + inject[i].size) {
memcpy (data, inject[i].data, inject[i].size);
data += inject[i].size;
pos = inject[i].offset + inject[i].size;
/* out position after insert chunk orig */
*orig_pos = inject[i].offset_orig + inject[i].size;
}
}
}
if (ret == FALSE) {
/* if it inside a injected is already done */
goto done;
}
/* calculate for striped */
*orig_pos = pos - injected_before;
for (i = 0; i < strip_len; ++i) {
if (strip[i].offset_orig > pos) {
break;
}
*orig_pos += strip[i].size;
}
done:
if (G_UNLIKELY (*orig_pos >= duration_orig)) {
*orig_pos = duration_orig - 1;
}
return ret;
}
/*
* return:
* -1 -> error
* 0 -> succeded
* 1 -> need more data
*/
gboolean
gst_metadata_common_calculate_offsets (GstMetadataCommon * common)
{
int i, j;
guint32 append_size;
guint32 bytes_striped, bytes_inject;
MetadataChunk *strip = common->metadata.strip_chunks.chunk;
MetadataChunk *inject = common->metadata.inject_chunks.chunk;
gsize strip_len;
gsize inject_len;
if (common->state != MT_STATE_PARSED)
return FALSE;
metadata_lazy_update (&common->metadata);
strip_len = common->metadata.strip_chunks.len;
inject_len = common->metadata.inject_chunks.len;
bytes_striped = 0;
bytes_inject = 0;
/* calculate the new position off injected chunks */
j = 0;
for (i = 0; i < inject_len; ++i) {
for (; j < strip_len; ++j) {
if (strip[j].offset_orig >= inject[i].offset_orig) {
break;
}
bytes_striped += strip[j].size;
}
inject[i].offset = inject[i].offset_orig - bytes_striped + bytes_inject;
bytes_inject += inject[i].size;
}
/* calculate append (doesnt make much sense, but, anyway..) */
append_size = 0;
for (i = inject_len - 1; i >= 0; --i) {
if (inject[i].offset_orig == common->duration_orig)
append_size += inject[i].size;
else
break;
}
if (append_size) {
guint8 *data;
common->append_buffer = gst_buffer_new_and_alloc (append_size);
GST_BUFFER_FLAG_SET (common->append_buffer, GST_BUFFER_FLAG_READONLY);
data = GST_BUFFER_DATA (common->append_buffer);
for (i = inject_len - 1; i >= 0; --i) {
if (inject[i].offset_orig == common->duration_orig) {
memcpy (data, inject[i].data, inject[i].size);
data += inject[i].size;
} else {
break;
}
}
}
if (common->duration_orig) {
common->duration = common->duration_orig;
for (i = 0; i < inject_len; ++i) {
common->duration += inject[i].size;
}
for (i = 0; i < strip_len; ++i) {
common->duration -= strip[i].size;
}
}
return TRUE;
}
void
gst_metadata_common_update_segment_with_new_buffer (GstMetadataCommon * common,
guint8 ** buf, guint32 * size, MetadataChunkType type)
{
int i;
MetadataChunk *inject = common->metadata.inject_chunks.chunk;
const gsize inject_len = common->metadata.inject_chunks.len;
if (!(buf && size))
goto done;
if (*buf == 0)
goto done;
if (*size == 0)
goto done;
for (i = 0; i < inject_len; ++i) {
if (inject[i].type == type) {
inject[i].size = *size;
if (inject[i].data)
g_free (inject[i].data);
inject[i].data = *buf;
*size = 0;
*buf = 0;
break;
}
}
done:
return;
}
const gchar *
gst_metadata_common_get_type_name (int img_type)
{
gchar *type_name = NULL;
switch (img_type) {
case IMG_JPEG:
type_name = "jpeg";
break;
case IMG_PNG:
type_name = "png";
break;
default:
type_name = "invalid type";
break;
}
return type_name;
}

96
ext/metadata/gstmetadatacommon.h Normal file
View file

@ -0,0 +1,96 @@
/*
* GStreamer
* Copyright 2007 Edgard Lima <edgard.lima@indt.org.br>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_METADATA_COMMON_H__
#define __GST_METADATA_COMMON_H__
#include "metadata.h"
G_BEGIN_DECLS
typedef struct _GstMetadataCommon GstMetadataCommon;
typedef enum _tag_MetadataState
{
MT_STATE_NULL, /* still need to check media type */
MT_STATE_PARSED
} MetadataState;
struct _GstMetadataCommon {
MetaData metadata;
gint64 duration_orig; /* durarion of stream */
gint64 duration; /* durarion of modified stream */
GstBuffer * append_buffer;
MetadataState state;
};
extern void
gst_metadata_common_init(GstMetadataCommon *common, gboolean parse, guint8 options);
extern void
gst_metadata_common_dispose(GstMetadataCommon *common);
extern gboolean
gst_metadata_common_strip_push_buffer (GstMetadataCommon *common, gint64 offset_orig,
GstBuffer ** prepend, GstBuffer ** buf);
extern gboolean
gst_metadata_common_translate_pos_to_orig (GstMetadataCommon *common,
gint64 pos, gint64 * orig_pos, GstBuffer ** buf);
extern gboolean
gst_metadata_common_calculate_offsets (GstMetadataCommon *common);
extern void
gst_metadata_common_update_segment_with_new_buffer (GstMetadataCommon *common,
guint8 ** buf, guint32 * size, MetadataChunkType type);
extern const gchar *
gst_metadata_common_get_type_name (int img_type);
G_END_DECLS
#endif /* __GST_METADATA_COMMON_H__ */

890
ext/metadata/gstmetadataparse.c → ext/metadata/gstmetadatademux.c
View file

File diff suppressed because it is too large Load diff

52
ext/metadata/gstmetadataparse.h → ext/metadata/gstmetadatademux.h
View file

@ -41,45 +41,40 @@
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_METADATA_PARSE_H__
#define __GST_METADATA_PARSE_H__
#ifndef __GST_METADATA_DEMUX_H__
#define __GST_METADATA_DEMUX_H__
#include <gst/gst.h>
#include "metadata.h"
#include "gstmetadatacommon.h"
G_BEGIN_DECLS
/* #defines don't like whitespacey bits */
#define GST_TYPE_METADATA_PARSE \
(gst_metadata_parse_get_type())
#define GST_METADATA_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_METADATA_PARSE,GstMetadataParse))
#define GST_METADATA_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_METADATA_PARSE,GstMetadataParseClass))
#define GST_IS_METADATA_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_METADATA_PARSE))
#define GST_IS_METADATA_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_METADATA_PARSE))
typedef struct _GstMetadataParse GstMetadataParse;
typedef struct _GstMetadataParseClass GstMetadataParseClass;
#define GST_TYPE_METADATA_DEMUX \
(gst_metadata_demux_get_type())
#define GST_METADATA_DEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_METADATA_DEMUX,GstMetadataDemux))
#define GST_METADATA_DEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_METADATA_DEMUX,GstMetadataDemuxClass))
#define GST_IS_METADATA_DEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_METADATA_DEMUX))
#define GST_IS_METADATA_DEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_METADATA_DEMUX))
typedef struct _GstMetadataDemux GstMetadataDemux;
typedef struct _GstMetadataDemuxClass GstMetadataDemuxClass;
typedef enum _tag_MetadataState
{
MT_STATE_NULL, /* still need to check media type */
MT_STATE_PARSED
} MetadataState;
struct _GstMetadataParse
struct _GstMetadataDemux
{
GstElement element;
GstPad *sinkpad, *srcpad;
GstMetadataCommon common;
guint8 options;
gboolean need_send_tag;
MetaData parse_data;
GstAdapter *adapter_parsing;
GstAdapter *adapter_holding;
guint32 next_offset;
@ -87,14 +82,9 @@ struct _GstMetadataParse
ImageType img_type;
gint64 offset_orig; /* offset in original stream */
gint64 duration_orig; /* durarion of stream */
gint64 offset; /* offset in current stream */
gint64 duration; /* durarion of modified stream */
MetadataState state;
GstBuffer * prepend_buffer;
GstBuffer * append_buffer;
gboolean need_more_data;
@ -102,12 +92,12 @@ struct _GstMetadataParse
};
struct _GstMetadataParseClass
struct _GstMetadataDemuxClass
{
GstElementClass parent_class;
};
extern GType gst_metadata_parse_get_type (void);
extern GType gst_metadata_demux_get_type (void);
G_END_DECLS
#endif /* __GST_METADATA_PARSE_H__ */
#endif /* __GST_METADATA_DEMUX_H__ */

759
ext/metadata/gstmetadatamux.c
View file

File diff suppressed because it is too large Load diff

16
ext/metadata/gstmetadatamux.h
View file

@ -46,7 +46,7 @@
#include <gst/gst.h>
#include "metadata.h"
#include "gstmetadatacommon.h"
G_BEGIN_DECLS
/* #defines don't like whitespacey bits */
@ -63,21 +63,16 @@ G_BEGIN_DECLS
typedef struct _GstMetadataMux GstMetadataMux;
typedef struct _GstMetadataMuxClass GstMetadataMuxClass;
typedef enum _tag_MetadataState
{
MT_STATE_NULL, /* still need to check media type */
MT_STATE_MUXED
} MetadataState;
struct _GstMetadataMux
{
GstElement element;
GstPad *sinkpad, *srcpad;
GstMetadataCommon common;
guint8 options;
MetaData mux_data;
GstAdapter *adapter_parsing;
GstAdapter *adapter_holding;
guint32 next_offset;
@ -85,14 +80,9 @@ struct _GstMetadataMux
ImageType img_type;
gint64 offset_orig; /* offset in original stream */
gint64 duration_orig; /* durarion of stream */
gint64 offset; /* offset in current stream */
gint64 duration; /* durarion of modified stream */
MetadataState state;
GstBuffer * prepend_buffer;
GstBuffer * append_buffer;
gboolean need_more_data;

275
ext/metadata/metadataexif.c
View file

@ -89,7 +89,6 @@ typedef struct _tag_MapIntStr
{
ExifTag exif;
const gchar *str;
GType type;
} MapIntStr;
static void
@ -99,21 +98,21 @@ static void exif_content_foreach_entry_func (ExifEntry * entry, void *);
/* *INDENT-OFF* */
static MapIntStr mappedTags[] = {
{EXIF_TAG_MAKE, /*EXIF_FORMAT_ASCII,*/ GST_TAG_DEVICE_MAKE, G_TYPE_STRING},
{EXIF_TAG_MODEL, /*EXIF_FORMAT_ASCII,*/ GST_TAG_DEVICE_MODEL, G_TYPE_STRING},
{EXIF_TAG_SOFTWARE, /*EXIF_FORMAT_ASCII,*/ GST_TAG_CREATOR_TOOL, G_TYPE_STRING},
{EXIF_TAG_X_RESOLUTION, /*EXIF_FORMAT_RATIONAL,*/ GST_TAG_IMAGE_XRESOLUTION, G_TYPE_FLOAT}, /* inches */
{EXIF_TAG_Y_RESOLUTION, /*EXIF_FORMAT_RATIONAL,*/ GST_TAG_IMAGE_YRESOLUTION, G_TYPE_FLOAT}, /* inches */
{EXIF_TAG_EXPOSURE_TIME, /*EXIF_FORMAT_RATIONAL,*/ GST_TAG_CAPTURE_EXPOSURE_TIME, G_TYPE_FLOAT},
{EXIF_TAG_FNUMBER, /*EXIF_FORMAT_RATIONAL,*/ GST_TAG_CAPTURE_FNUMBER, G_TYPE_FLOAT},
{EXIF_TAG_EXPOSURE_PROGRAM, /*EXIF_FORMAT_SHORT,*/ GST_TAG_CAPTURE_EXPOSURE_PROGRAM, G_TYPE_UINT},
{EXIF_TAG_BRIGHTNESS_VALUE, /*EXIF_FORMAT_SRATIONAL,*/ GST_TAG_CAPTURE_BRIGHTNESS, G_TYPE_FLOAT},
{EXIF_TAG_WHITE_BALANCE, /*EXIF_FORMAT_SHORT,*/ GST_TAG_CAPTURE_WHITE_BALANCE, G_TYPE_UINT},
{EXIF_TAG_DIGITAL_ZOOM_RATIO, /*EXIF_FORMAT_RATIONAL,*/ GST_TAG_CAPTURE_DIGITAL_ZOOM, G_TYPE_FLOAT},
{EXIF_TAG_GAIN_CONTROL, /*EXIF_FORMAT_SHORT,*/ GST_TAG_CAPTURE_GAIN, G_TYPE_UINT},
{EXIF_TAG_CONTRAST, /*EXIF_FORMAT_SHORT,*/ GST_TAG_CAPTURE_CONTRAST, G_TYPE_INT},
{EXIF_TAG_SATURATION, /*EXIF_FORMAT_SHORT,*/ GST_TAG_CAPTURE_SATURATION, G_TYPE_INT},
{0, NULL, G_TYPE_NONE}
{EXIF_TAG_MAKE, /*ASCII,*/ GST_TAG_DEVICE_MAKE, /*STRING*/},
{EXIF_TAG_MODEL, /*ASCII,*/ GST_TAG_DEVICE_MODEL, /*STRING*/},
{EXIF_TAG_SOFTWARE, /*ASCII,*/ GST_TAG_CREATOR_TOOL, /*STRING*/},
{EXIF_TAG_X_RESOLUTION, /*RATIONAL,*/ GST_TAG_IMAGE_XRESOLUTION, /*FRACTION*/}, /* inches */
{EXIF_TAG_Y_RESOLUTION, /*RATIONAL,*/ GST_TAG_IMAGE_YRESOLUTION, /*FRACTION*/}, /* inches */
{EXIF_TAG_EXPOSURE_TIME, /*RATIONAL,*/ GST_TAG_CAPTURE_EXPOSURE_TIME, /*FRACTION*/},
{EXIF_TAG_FNUMBER, /*RATIONAL,*/ GST_TAG_CAPTURE_FNUMBER, /*FRACTION*/},
{EXIF_TAG_EXPOSURE_PROGRAM, /*SHORT,*/ GST_TAG_CAPTURE_EXPOSURE_PROGRAM, /*UINT*/},
{EXIF_TAG_BRIGHTNESS_VALUE, /*SRATIONAL,*/ GST_TAG_CAPTURE_BRIGHTNESS, /*FRACTION*/},
{EXIF_TAG_WHITE_BALANCE, /*SHORT,*/ GST_TAG_CAPTURE_WHITE_BALANCE, /*UINT*/},
{EXIF_TAG_DIGITAL_ZOOM_RATIO, /*RATIONAL,*/ GST_TAG_CAPTURE_DIGITAL_ZOOM, /*FRACTION*/},
{EXIF_TAG_GAIN_CONTROL, /*SHORT,*/ GST_TAG_CAPTURE_GAIN, /*UINT*/},
{EXIF_TAG_CONTRAST, /*SHORT,*/ GST_TAG_CAPTURE_CONTRAST, /*INT*/},
{EXIF_TAG_SATURATION, /*SHORT,*/ GST_TAG_CAPTURE_SATURATION, /*INT*/},
{0, NULL}
};
/* *INDENT-ON* */
@ -123,12 +122,13 @@ metadataparse_exif_get_tag_from_exif (ExifTag exif, GType * type)
int i = 0;
while (mappedTags[i].exif) {
if (exif == mappedTags[i].exif)
if (exif == mappedTags[i].exif) {
*type = gst_tag_get_type (mappedTags[i].str);
break;
}
++i;
}
*type = mappedTags[i].type;
return mappedTags[i].str;
}
@ -139,12 +139,13 @@ metadataparse_exif_get_exif_from_tag (const gchar * tag, GType * type)
int i = 0;
while (mappedTags[i].exif) {
if (0 == strcmp (mappedTags[i].str, tag))
if (0 == strcmp (mappedTags[i].str, tag)) {
*type = gst_tag_get_type (tag);
break;
}
++i;
}
*type = mappedTags[i].type;
return mappedTags[i].exif;
}
@ -257,61 +258,59 @@ exif_content_foreach_entry_func (ExifEntry * entry, void *user_data)
goto done;
}
if (tag) {
/* FIXME: create a generic function for this */
/* could also be used with entry->format */
if (!tag)
goto done;
if (type == GST_TYPE_FRACTION) {
gint numerator = 0;
gint denominator = 1;
switch (entry->format) {
case EXIF_FORMAT_SRATIONAL:
{
ExifSRational v_srat;
v_srat = exif_get_srational (entry->data, byte_order);
if (v_srat.denominator) {
numerator = (gint) v_srat.numerator;
denominator = (gint) v_srat.denominator;
}
}
break;
case EXIF_FORMAT_RATIONAL:
{
ExifRational v_rat;
v_rat = exif_get_rational (entry->data, byte_order);
if (v_rat.denominator) {
numerator = (gint) v_rat.numerator;
denominator = (gint) v_rat.denominator;
}
if (meudata->resolution_unit == 3) {
/* converts from cm to inches */
if (entry->tag == EXIF_TAG_X_RESOLUTION
|| entry->tag == EXIF_TAG_Y_RESOLUTION) {
numerator *= 2;
denominator *= 5;
}
}
}
break;
default:
GST_ERROR ("Unexpected Tag Type");
goto done;
break;
}
gst_tag_list_add (meudata->taglist, meudata->mode, tag, numerator,
denominator, NULL);
} else {
switch (type) {
case G_TYPE_STRING:
gst_tag_list_add (meudata->taglist, meudata->mode, tag,
exif_entry_get_value (entry, buf, sizeof (buf)), NULL);
break;
case G_TYPE_FLOAT:
{
gfloat f_value;
switch (entry->format) {
case EXIF_FORMAT_SRATIONAL:
{
ExifSRational v_srat;
v_srat = exif_get_srational (entry->data, byte_order);
if (v_srat.denominator == 0)
f_value = 0.0f;
else
f_value = (float) v_srat.numerator / (float) v_srat.denominator;
if (v_srat.numerator == 0xFFFFFFFF) {
if (entry->tag == EXIF_TAG_BRIGHTNESS_VALUE) {
f_value = 100.0f;
}
}
}
break;
case EXIF_FORMAT_RATIONAL:
{
ExifRational v_rat;
v_rat = exif_get_rational (entry->data, byte_order);
if (v_rat.denominator == 0)
f_value = 0.0f;
else
f_value = (float) v_rat.numerator / (float) v_rat.denominator;
if (meudata->resolution_unit == 3) {
/* converts from cm to inches */
if (entry->tag == EXIF_TAG_X_RESOLUTION
|| entry->tag == EXIF_TAG_Y_RESOLUTION) {
f_value *= 0.4f;
}
}
}
break;
default:
GST_ERROR ("Unexpected Tag Type");
goto done;
break;
}
gst_tag_list_add (meudata->taglist, meudata->mode, tag, f_value, NULL);
}
break;
case G_TYPE_INT:
/* fall through */
case G_TYPE_UINT:
@ -350,8 +349,10 @@ exif_content_foreach_entry_func (ExifEntry * entry, void *user_data)
default:
break;
}
}
done:
GST_LOG ("\n Entry %p: %s (%s)\n"
@ -465,90 +466,82 @@ metadataexif_for_each_tag_in_list (const GstTagList * list, const gchar * tag,
exif_entry_initialize (entry, exif_tag);
}
switch (type) {
case G_TYPE_STRING:
{
gchar *value = NULL;
if (type == GST_TYPE_FRACTION) {
const GValue *gvalue = gst_tag_list_get_value_index (list, tag, 0);
gint numerator = gst_value_get_fraction_numerator (gvalue);
gint denominator = gst_value_get_fraction_denominator (gvalue);
if (gst_tag_list_get_string (list, tag, &value)) {
entry->components = strlen (value) + 1;
entry->size = exif_format_get_size (entry->format) * entry->components;
entry->data = value;
switch (entry->format) {
case EXIF_FORMAT_SRATIONAL:
{
ExifSRational sr = { numerator, denominator };
exif_set_srational (entry->data, byte_order, sr);
}
}
break;
case G_TYPE_FLOAT:
{
gfloat value;
break;
case EXIF_FORMAT_RATIONAL:
{
ExifRational r = { numerator, denominator };
gst_tag_list_get_float (list, tag, &value);
exif_set_rational (entry->data, byte_order, r);
if (entry->tag == EXIF_TAG_X_RESOLUTION ||
entry->tag == EXIF_TAG_Y_RESOLUTION) {
ExifEntry *unit_entry = NULL;
switch (entry->format) {
case EXIF_FORMAT_SRATIONAL:
{
ExifSRational sr;
if ((unit_entry = exif_data_get_entry (ed, EXIF_TAG_RESOLUTION_UNIT))) {
ExifShort vsh = exif_get_short (unit_entry->data, byte_order);
sr = float_to_srational (value);
if (entry->tag == EXIF_TAG_BRIGHTNESS_VALUE) {
if (value == 100.0f) {
sr.numerator = 0xFFFFFFFF;
sr.denominator = 1;
}
}
exif_set_srational (entry->data, byte_order, sr);
}
break;
case EXIF_FORMAT_RATIONAL:
{
ExifRational r;
r = float_to_rational (value);
exif_set_rational (entry->data, byte_order, r);
if (entry->tag == EXIF_TAG_X_RESOLUTION ||
entry->tag == EXIF_TAG_Y_RESOLUTION) {
ExifEntry *unit_entry = NULL;
if ((unit_entry =
exif_data_get_entry (ed, EXIF_TAG_RESOLUTION_UNIT))) {
ExifShort vsh = exif_get_short (unit_entry->data, byte_order);
if (vsh != 2) /* inches */
exif_set_short (unit_entry->data, byte_order, 2);
}
if (vsh != 2) /* inches */
exif_set_short (unit_entry->data, byte_order, 2);
}
}
break;
default:
break;
}
break;
default:
break;
}
break;
case G_TYPE_UINT:
case G_TYPE_INT:
{
gint value;
ExifShort v_short;
} else {
if (G_TYPE_UINT == type) {
gst_tag_list_get_uint (list, tag, &value);
} else {
gst_tag_list_get_int (list, tag, &value);
switch (type) {
case G_TYPE_STRING:
{
gchar *value = NULL;
if (gst_tag_list_get_string (list, tag, &value)) {
entry->components = strlen (value) + 1;
entry->size =
exif_format_get_size (entry->format) * entry->components;
entry->data = value;
}
}
if (entry->tag == EXIF_TAG_CONTRAST || entry->tag == EXIF_TAG_SATURATION) {
if (value < -33)
value = 1; /* low */
else if (value < 34)
value = 0; /* normal */
else
value = 2; /* high */
break;
case G_TYPE_UINT:
case G_TYPE_INT:
{
gint value;
ExifShort v_short;
if (G_TYPE_UINT == type) {
gst_tag_list_get_uint (list, tag, &value);
} else {
gst_tag_list_get_int (list, tag, &value);
}
if (entry->tag == EXIF_TAG_CONTRAST
|| entry->tag == EXIF_TAG_SATURATION) {
if (value < -33)
value = 1; /* low */
else if (value < 34)
value = 0; /* normal */
else
value = 2; /* high */
}
v_short = value;
exif_set_short (entry->data, byte_order, v_short);
}
v_short = value;
exif_set_short (entry->data, byte_order, v_short);
break;
default:
break;
}
break;
default:
break;
}
done:

106
ext/metadata/metadatatags.c
View file

@ -49,39 +49,6 @@
static void
metadata_tags_exif_register (void)
{
gst_tag_register (GST_TAG_EXIF, GST_TAG_FLAG_META,
GST_TYPE_BUFFER, GST_TAG_EXIF, "exif metadata chunk", NULL);
}
/*
* IPTC tags
*/
static void
metadata_tags_iptc_register (void)
{
gst_tag_register (GST_TAG_IPTC, GST_TAG_FLAG_META,
GST_TYPE_BUFFER, GST_TAG_IPTC, "iptc metadata chunk", NULL);
}
/*
* XMP tags
*/
static void
metadata_tags_xmp_register (void)
{
gst_tag_register (GST_TAG_XMP, GST_TAG_FLAG_META,
GST_TYPE_BUFFER, GST_TAG_XMP, "xmp metadata chunk", NULL);
}
/*
*
*/
void
metadata_tags_register (void)
{
/* devices tags */
@ -101,20 +68,21 @@ metadata_tags_register (void)
/* image tags */
gst_tag_register (GST_TAG_IMAGE_XRESOLUTION, GST_TAG_FLAG_META, G_TYPE_FLOAT,
GST_TAG_IMAGE_XRESOLUTION, "Horizontal resolution in pixels per inch",
NULL);
gst_tag_register (GST_TAG_IMAGE_YRESOLUTION, GST_TAG_FLAG_META, G_TYPE_FLOAT,
GST_TAG_IMAGE_YRESOLUTION, "Vertical resolution in pixels per inch",
NULL);
gst_tag_register (GST_TAG_IMAGE_XRESOLUTION, GST_TAG_FLAG_META,
GST_TYPE_FRACTION, GST_TAG_IMAGE_XRESOLUTION,
"Horizontal resolution in pixels per inch", NULL);
gst_tag_register (GST_TAG_IMAGE_YRESOLUTION, GST_TAG_FLAG_META,
GST_TYPE_FRACTION, GST_TAG_IMAGE_YRESOLUTION,
"Vertical resolution in pixels per inch", NULL);
/* capture tags */
gst_tag_register (GST_TAG_CAPTURE_EXPOSURE_TIME, GST_TAG_FLAG_META,
G_TYPE_FLOAT, GST_TAG_CAPTURE_EXPOSURE_TIME, "Exposure time in seconds",
GST_TYPE_FRACTION, GST_TAG_CAPTURE_EXPOSURE_TIME,
"Exposure time in seconds", NULL);
gst_tag_register (GST_TAG_CAPTURE_FNUMBER, GST_TAG_FLAG_META,
GST_TYPE_FRACTION, GST_TAG_CAPTURE_FNUMBER, "F number (focal ratio)",
NULL);
gst_tag_register (GST_TAG_CAPTURE_FNUMBER, GST_TAG_FLAG_META, G_TYPE_FLOAT,
GST_TAG_CAPTURE_FNUMBER, "F number (focal ratio)", NULL);
/**
0 - not defined
1- Manual
@ -137,11 +105,11 @@ metadata_tags_register (void)
"Class of program used for exposure", NULL);
/** The unit is the APEX value.
Ordinarily it is given in the range of -99.99 to 99.99.
100.0 mean unknown
if numerator is 0xFFFFFFFF means unknown
*/
gst_tag_register (GST_TAG_CAPTURE_BRIGHTNESS, GST_TAG_FLAG_META, G_TYPE_FLOAT,
GST_TAG_CAPTURE_BRIGHTNESS, "Brightness (APEX from -99.99 to 99.99)",
NULL);
gst_tag_register (GST_TAG_CAPTURE_BRIGHTNESS, GST_TAG_FLAG_META,
GST_TYPE_FRACTION, GST_TAG_CAPTURE_BRIGHTNESS,
"Brightness (APEX from -99.99 to 99.99)", NULL);
/**
0- Auto
1- Off
@ -160,7 +128,8 @@ metadata_tags_register (void)
/** if Zero ZOOM not used
*/
gst_tag_register (GST_TAG_CAPTURE_DIGITAL_ZOOM, GST_TAG_FLAG_META,
G_TYPE_FLOAT, GST_TAG_CAPTURE_DIGITAL_ZOOM, "Digital zoom ratio", NULL);
GST_TYPE_FRACTION, GST_TAG_CAPTURE_DIGITAL_ZOOM, "Digital zoom ratio",
NULL);
/**
0- None
1- Low gain up
@ -189,6 +158,49 @@ metadata_tags_register (void)
gst_tag_register (GST_TAG_CAPTURE_SATURATION, GST_TAG_FLAG_META, G_TYPE_INT,
GST_TAG_CAPTURE_SATURATION, "", NULL);
}
/*
* IPTC tags
*/
static void
metadata_tags_iptc_register (void)
{
}
/*
* XMP tags
*/
static void
metadata_tags_xmp_register (void)
{
}
/*
*
*/
void
metadata_tags_register (void)
{
/* whole chunk tags */
gst_tag_register (GST_TAG_EXIF, GST_TAG_FLAG_META,
GST_TYPE_BUFFER, GST_TAG_EXIF, "exif metadata chunk", NULL);
gst_tag_register (GST_TAG_IPTC, GST_TAG_FLAG_META,
GST_TYPE_BUFFER, GST_TAG_IPTC, "iptc metadata chunk", NULL);
gst_tag_register (GST_TAG_XMP, GST_TAG_FLAG_META,
GST_TYPE_BUFFER, GST_TAG_XMP, "xmp metadata chunk", NULL);
/* tags related to some metadata */
metadata_tags_exif_register ();
metadata_tags_iptc_register ();
metadata_tags_xmp_register ();

62
ext/metadata/test/metadata_editor.c
View file

@ -160,33 +160,43 @@ change_tag_list (GstTagList ** list, const gchar * tag, const gchar * value)
type = gst_tag_get_type (tag);
switch (type) {
case G_TYPE_STRING:
gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, value, NULL);
ret = TRUE;
break;
case G_TYPE_FLOAT:
{
gfloat fv = (gfloat) g_strtod (value, NULL);
if (type == GST_TYPE_FRACTION) {
/* FIXME: Ask GStreamer guys to add GST_FRACTION support to TAGS */
/* Even better: ask GLib guys to add this type */
gint n, d;
gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, fv, NULL);
ret = TRUE;
}
break;
case G_TYPE_INT:
/* fall through */
case G_TYPE_UINT:
{
gint iv = atoi (value);
sscanf (value, "%d/%d", &n, &d);
gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, n, d, NULL);
ret = TRUE;
} else {
switch (type) {
case G_TYPE_STRING:
gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, value, NULL);
ret = TRUE;
break;
case G_TYPE_FLOAT:
{
gfloat fv = (gfloat) g_strtod (value, NULL);
gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, iv, NULL);
ret = TRUE;
gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, fv, NULL);
ret = TRUE;
}
break;
case G_TYPE_INT:
/* fall through */
case G_TYPE_UINT:
{
gint iv = atoi (value);
gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, iv, NULL);
ret = TRUE;
}
break;
default:
fprintf (stderr, "This app still doesn't handle type (%s)(%ld)\n",
g_type_name (type), type);
break;
}
break;
default:
fprintf (stderr, "This app still doesn't handle type (%s)(%ld)\n",
g_type_name (type), type);
break;
}
done:
@ -700,7 +710,7 @@ me_gst_setup_encode_pipeline (const gchar * src_file, const gchar * dest_file,
/* create elements */
gst_source = gst_element_factory_make ("filesrc", NULL);
gst_metadata_demux = gst_element_factory_make ("metadataparse", NULL);
gst_metadata_demux = gst_element_factory_make ("metadatademux", NULL);
gst_metadata_mux = gst_element_factory_make ("metadatamux", NULL);
gst_file_sink = gst_element_factory_make ("filesink", NULL);
@ -767,7 +777,7 @@ me_gst_setup_view_pipeline (const gchar * filename, GdkWindow * window)
/* create elements */
gst_source = gst_element_factory_make ("filesrc", NULL);
gst_metadata_demux = gst_element_factory_make ("metadataparse", NULL);
gst_metadata_demux = gst_element_factory_make ("metadatademux", NULL);
/* let's do a dummy stuff to avoid decodebin */
if (is_png (filename))
gst_image_dec = gst_element_factory_make ("pngdec", NULL);