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Removed gstmetadatacommon.

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Original commit message from CVS:
Removed gstmetadatacommon.
This commit is contained in:
Edgard Lima 2007-12-21 09:45:56 +00:00
parent bb4e1d10e9
commit 0f2ac9fe8b
9 changed files with 758 additions and 852 deletions
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12
ChangeLog
View file

@ -1,3 +1,15 @@
2007-12-21 Edgard Lima <edgard.lima@indt.org.br>
* ext/metadata/Makefile.am:
* ext/metadata/TODO:
* ext/metadata/gstbasemetadata.c:
* ext/metadata/gstbasemetadata.h:
* ext/metadata/gstmetadatacommon.c:
* ext/metadata/gstmetadatacommon.h:
* ext/metadata/metadata.c:
* ext/metadata/metadata.h:
Removed gstmetadatacommon.
2007-12-20 David Schleef <ds@schleef.org>
* sys/glsink/Makefile.am:

2
ext/metadata/Makefile.am
View file

@ -1,7 +1,6 @@
plugin_LTLIBRARIES = libgstmetadata.la
libgstmetadata_la_SOURCES = gstmetadata.c \
gstmetadatacommon.c \
gstmetadatademux.c \
metadata.c \
metadataparsejpeg.c \
@ -25,7 +24,6 @@ libgstmetadata_la_LIBADD = $(METADATA_LIBS) -lgsttag-@GST_MAJORMINOR@ $(GST_PLUG
libgstmetadata_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstmetadatademux.h \
gstmetadatacommon.h \
metadata.h \
metadataparsejpeg.h \
metadatamuxjpeg.h \

6
ext/metadata/TODO
View file

@ -1,9 +1,10 @@
This file contains a list of things to be done as well some open issues (questions) related to design/implementation.
* I (Edgard Lima - alima - edgard.lima@indt.org.br) will be on vacation until 05-Jan-2008. After that I will be back on it.
TODO:
0- Remove "common" file (put inside class)
1- Add individual tags IPTC and XMP (and more for EXIF)
2- Get properties like 'width' and 'height' from caps
3- Review the code (in order to move to gst-plugins-good)
@ -16,9 +17,8 @@ OPEN ISSUES:
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- After decided issue (4) put more things to gstmetadatacommon (or else create a Class)
KNOWN BUGS
1- exposure-time, exposure-program and fnumber can't be read from a file saved from scratch (whithout WHOLE_CHUNK from previous file)
I believe it is a bu in libexif

747
ext/metadata/gstbasemetadata.c
View file

@ -167,6 +167,525 @@ gst_base_metadata_get_type (void)
return base_metadata_type;
}
/* static helper function */
/*
* 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_base_metadata_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
*/
/*
/*
* TRUE -> buffer striped or injeted
* FALSE -> buffer unmodified
*/
gboolean
gst_base_metadata_strip_push_buffer (GstBaseMetadata * base,
gint64 offset_orig, GstBuffer ** prepend, GstBuffer ** buf)
{
MetadataChunk *strip = base->metadata->strip_chunks.chunk;
MetadataChunk *inject = base->metadata->inject_chunks.chunk;
const gsize strip_len = base->metadata->strip_chunks.len;
const gsize inject_len = base->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_base_metadata_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_base_metadata_translate_pos_to_orig (GstBaseMetadata * base,
gint64 pos, gint64 * orig_pos, GstBuffer ** buf)
{
MetadataChunk *strip = base->metadata->strip_chunks.chunk;
MetadataChunk *inject = base->metadata->inject_chunks.chunk;
const gsize strip_len = base->metadata->strip_chunks.len;
const gsize inject_len = base->metadata->inject_chunks.len;
const gint64 duration_orig = base->duration_orig;
const gint64 duration = base->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_base_metadata_calculate_offsets (GstBaseMetadata * base)
{
int i, j;
guint32 append_size;
guint32 bytes_striped, bytes_inject;
MetadataChunk *strip = base->metadata->strip_chunks.chunk;
MetadataChunk *inject = base->metadata->inject_chunks.chunk;
gsize strip_len;
gsize inject_len;
if (base->state != MT_STATE_PARSED)
return FALSE;
metadata_lazy_update (base->metadata);
strip_len = base->metadata->strip_chunks.len;
inject_len = base->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 == base->duration_orig)
append_size += inject[i].size;
else
break;
}
if (append_size) {
guint8 *data;
base->append_buffer = gst_buffer_new_and_alloc (append_size);
GST_BUFFER_FLAG_SET (base->append_buffer, GST_BUFFER_FLAG_READONLY);
data = GST_BUFFER_DATA (base->append_buffer);
for (i = inject_len - 1; i >= 0; --i) {
if (inject[i].offset_orig == base->duration_orig) {
memcpy (data, inject[i].data, inject[i].size);
data += inject[i].size;
} else {
break;
}
}
}
if (base->duration_orig) {
base->duration = base->duration_orig;
for (i = 0; i < inject_len; ++i) {
base->duration += inject[i].size;
}
for (i = 0; i < strip_len; ++i) {
base->duration -= strip[i].size;
}
}
return TRUE;
}
const gchar *
gst_base_metadata_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;
}
/* gstreamer functions */
static void
gst_base_metadata_base_init (gpointer gclass)
@ -260,8 +779,6 @@ gst_base_metadata_init (GstBaseMetadata * filter, GstBaseMetadataClass * gclass)
metadataparse_xmp_init ();
/* init members */
filter->options = META_OPT_EXIF | META_OPT_IPTC | META_OPT_XMP;
gst_base_metadata_init_members (filter);
}
@ -329,7 +846,7 @@ gst_base_metadata_processing (GstBaseMetadata * filter)
if (filter->need_processing) {
bclass->processing (filter);
if (gst_metadata_common_calculate_offsets (&filter->common)) {
if (gst_base_metadata_calculate_offsets (filter)) {
filter->need_processing = FALSE;
} else {
ret = FALSE;
@ -404,10 +921,10 @@ gst_base_metadata_src_event (GstPad * pad, GstEvent * event)
case GST_FORMAT_BYTES:
break;
case GST_FORMAT_PERCENT:
if (filter->common.duration < 0)
if (filter->duration < 0)
goto done;
start = start * filter->common.duration / 100;
stop = stop * filter->common.duration / 100;
start = start * filter->duration / 100;
stop = stop * filter->duration / 100;
break;
default:
goto done;
@ -417,9 +934,9 @@ gst_base_metadata_src_event (GstPad * pad, GstEvent * event)
if (start_type == GST_SEEK_TYPE_CUR)
start = filter->offset + start;
else if (start_type == GST_SEEK_TYPE_END) {
if (filter->common.duration < 0)
if (filter->duration < 0)
goto done;
start = filter->common.duration + start;
start = filter->duration + start;
}
start_type == GST_SEEK_TYPE_SET;
@ -430,21 +947,20 @@ gst_base_metadata_src_event (GstPad * pad, GstEvent * event)
/* FIXME: related to append */
filter->offset = start;
gst_metadata_common_translate_pos_to_orig (&filter->common, start, &start,
gst_base_metadata_translate_pos_to_orig (filter, start, &start,
&filter->prepend_buffer);
filter->offset_orig = start;
if (stop_type == GST_SEEK_TYPE_CUR)
stop = filter->offset + stop;
else if (stop_type == GST_SEEK_TYPE_END) {
if (filter->common.duration < 0)
if (filter->duration < 0)
goto done;
stop = filter->common.duration + stop;
stop = filter->duration + stop;
}
stop_type == GST_SEEK_TYPE_SET;
gst_metadata_common_translate_pos_to_orig (&filter->common, stop, &stop,
NULL);
gst_base_metadata_translate_pos_to_orig (filter, stop, &stop, NULL);
gst_event_unref (event);
event = gst_event_new_seek (rate, format, flags,
@ -494,7 +1010,20 @@ gst_base_metadata_finalize (GObject * object)
static void
gst_base_metadata_dispose_members (GstBaseMetadata * filter)
{
gst_metadata_common_dispose (&filter->common);
/* buffers used to build output buffer */
if (filter->prepend_buffer) {
gst_buffer_unref (filter->prepend_buffer);
filter->prepend_buffer = NULL;
}
if (filter->append_buffer) {
gst_buffer_unref (filter->append_buffer);
filter->append_buffer = NULL;
}
/* adapter used during parsing process */
if (filter->adapter_parsing) {
gst_object_unref (filter->adapter_parsing);
@ -506,29 +1035,82 @@ gst_base_metadata_dispose_members (GstBaseMetadata * filter)
filter->adapter_holding = NULL;
}
if (filter->prepend_buffer) {
gst_buffer_unref (filter->prepend_buffer);
filter->prepend_buffer = NULL;
}
metadata_dispose (&filter->metadata);
}
static void
gst_base_metadata_init_members (GstBaseMetadata * filter)
{
filter->metadata = NULL;
filter->img_type = IMG_NONE;
filter->duration_orig = 0;
filter->duration = 0;
filter->state = MT_STATE_NULL;
filter->options = META_OPT_EXIF | META_OPT_IPTC | META_OPT_XMP;
filter->need_processing = FALSE;
filter->adapter_parsing = NULL;
filter->adapter_holding = NULL;
filter->next_offset = 0;
filter->next_size = 0;
filter->img_type = IMG_NONE;
filter->need_more_data = FALSE;
filter->offset_orig = 0;
filter->offset = 0;
filter->need_more_data = FALSE;
filter->append_buffer = NULL;
filter->prepend_buffer = NULL;
memset (&filter->common, 0x00, sizeof (filter->common));
}
static void
gst_base_metadata_reset_streaming (GstBaseMetadata * filter)
{
filter->offset_orig = 0;
filter->offset = 0;
if (filter->adapter_holding)
gst_adapter_clear (filter->adapter_holding);
}
static void
gst_base_metadata_reset_parsing (GstBaseMetadata * filter)
{
if (filter->prepend_buffer) {
gst_buffer_unref (filter->prepend_buffer);
filter->prepend_buffer = NULL;
}
if (filter->append_buffer) {
gst_buffer_unref (filter->append_buffer);
filter->append_buffer = NULL;
}
if (filter->adapter_parsing)
gst_adapter_clear (filter->adapter_parsing);
if (filter->adapter_holding)
gst_adapter_clear (filter->adapter_holding);
filter->img_type = IMG_NONE;
filter->duration_orig = 0;
filter->duration = 0;
filter->state = MT_STATE_NULL;
filter->need_processing = FALSE;
filter->next_offset = 0;
filter->next_size = 0;
filter->need_more_data = FALSE;
filter->offset_orig = 0;
filter->offset = 0;
metadata_dispose (&filter->metadata);
}
@ -617,9 +1199,8 @@ gst_base_metadata_src_query (GstPad * pad, GstQuery * query)
gst_query_parse_duration (query, &format, NULL);
if (format == GST_FORMAT_BYTES) {
if (filter->common.duration >= 0) {
gst_query_set_duration (query, GST_FORMAT_BYTES,
filter->common.duration);
if (filter->duration >= 0) {
gst_query_set_duration (query, GST_FORMAT_BYTES, filter->duration);
ret = TRUE;
}
}
@ -658,11 +1239,11 @@ gst_base_metadata_parse (GstBaseMetadata * filter, const guint8 * buf,
filter->next_offset = 0;
filter->next_size = 0;
ret = metadata_parse (&filter->common.metadata, buf, size,
ret = metadata_parse (filter->metadata, buf, size,
&filter->next_offset, &filter->next_size);
if (ret == META_PARSING_ERROR) {
if (META_DATA_IMG_TYPE (filter->common.metadata) == IMG_NONE) {
if (META_DATA_IMG_TYPE (filter->metadata) == IMG_NONE) {
/* image type not recognized */
GST_ELEMENT_ERROR (filter, STREAM, TYPE_NOT_FOUND, (NULL),
("Only jpeg and png are supported"));
@ -671,18 +1252,18 @@ gst_base_metadata_parse (GstBaseMetadata * filter, const guint8 * buf,
} else if (ret == META_PARSING_NEED_MORE_DATA) {
filter->need_more_data = TRUE;
} else {
filter->common.state = MT_STATE_PARSED;
filter->state = MT_STATE_PARSED;
filter->need_more_data = FALSE;
filter->need_processing = TRUE;
}
/* reconfigure caps if it is different from type detected by 'base_metadata' function */
if (filter->img_type != META_DATA_IMG_TYPE (filter->common.metadata)) {
filter->img_type = META_DATA_IMG_TYPE (filter->common.metadata);
if (filter->img_type != META_DATA_IMG_TYPE (filter->metadata)) {
filter->img_type = META_DATA_IMG_TYPE (filter->metadata);
if (!gst_base_metadata_configure_caps (filter)) {
GST_ELEMENT_ERROR (filter, STREAM, FORMAT, (NULL),
("Couldn't reconfigure caps for %s",
gst_metadata_common_get_type_name (filter->img_type)));
gst_base_metadata_get_type_name (filter->img_type)));
ret = META_PARSING_ERROR;
goto done;
}
@ -715,8 +1296,13 @@ gst_base_metadata_chain (GstPad * pad, GstBuffer * buf)
filter = GST_BASE_METADATA (gst_pad_get_parent (pad));
if (filter->common.state != MT_STATE_PARSED) {
guint32 adpt_size = gst_adapter_available (filter->adapter_parsing);
if (filter->state != MT_STATE_PARSED) {
guint32 adpt_size;
if (G_UNLIKELY (filter->adapter_parsing == NULL))
filter->adapter_parsing = gst_adapter_new ();
adpt_size = gst_adapter_available (filter->adapter_parsing);
if (filter->next_offset) {
if (filter->next_offset >= adpt_size) {
@ -764,7 +1350,7 @@ gst_base_metadata_chain (GstPad * pad, GstBuffer * buf)
}
}
if (filter->common.state == MT_STATE_PARSED) {
if (filter->state == MT_STATE_PARSED) {
if (!gst_base_metadata_processing (filter)) {
ret = GST_FLOW_ERROR;
@ -779,13 +1365,12 @@ gst_base_metadata_chain (GstPad * pad, GstBuffer * buf)
filter->adapter_holding = NULL;
}
if (filter->offset_orig + GST_BUFFER_SIZE (buf) ==
filter->common.duration_orig)
if (filter->offset_orig + GST_BUFFER_SIZE (buf) == filter->duration_orig)
append = TRUE;
buf_size = GST_BUFFER_SIZE (buf);
gst_metadata_common_strip_push_buffer (&filter->common, filter->offset_orig,
gst_base_metadata_strip_push_buffer (filter, filter->offset_orig,
&filter->prepend_buffer, &buf);
if (buf) { /* may be all buffer has been striped */
@ -800,11 +1385,11 @@ gst_base_metadata_chain (GstPad * pad, GstBuffer * buf)
ret = GST_FLOW_OK;
}
if (append && filter->common.append_buffer) {
gst_buffer_set_caps (filter->common.append_buffer,
if (append && filter->append_buffer) {
gst_buffer_set_caps (filter->append_buffer,
GST_PAD_CAPS (filter->srcpad));
gst_buffer_ref (filter->common.append_buffer);
ret = gst_pad_push (filter->srcpad, filter->common.append_buffer);
gst_buffer_ref (filter->append_buffer);
ret = gst_pad_push (filter->srcpad, filter->append_buffer);
if (ret != GST_FLOW_OK)
goto done;
}
@ -852,7 +1437,7 @@ gst_base_metadata_pull_range_base (GstBaseMetadata * filter)
ret = TRUE;
goto done;
}
filter->common.duration_orig = duration;
filter->duration_orig = duration;
if (format != GST_FORMAT_BYTES) {
/* this should never happen, but try chain anyway */
@ -921,7 +1506,7 @@ gst_base_metadata_sink_activate (GstPad * pad)
}
/* try to base */
if (filter->common.state == MT_STATE_NULL) {
if (filter->state == MT_STATE_NULL) {
ret = gst_base_metadata_pull_range_base (filter);
}
@ -968,21 +1553,20 @@ gst_base_metadata_get_range (GstPad * pad,
goto done;
}
if (offset + size > filter->common.duration) {
size = filter->common.duration - offset;
if (offset + size > filter->duration) {
size = filter->duration - offset;
}
size_orig = size;
gst_metadata_common_translate_pos_to_orig (&filter->common, offset,
gst_base_metadata_translate_pos_to_orig (filter, offset,
&offset_orig, &prepend);
if (size > 1) {
gint64 pos;
pos = offset + size - 1;
gst_metadata_common_translate_pos_to_orig (&filter->common, pos, &pos,
NULL);
gst_base_metadata_translate_pos_to_orig (filter, pos, &pos, NULL);
size_orig = pos + 1 - offset_orig;
}
@ -991,8 +1575,7 @@ gst_base_metadata_get_range (GstPad * pad,
ret = gst_pad_pull_range (filter->sinkpad, offset_orig, size_orig, buf);
if (ret == GST_FLOW_OK && *buf) {
gst_metadata_common_strip_push_buffer (&filter->common, offset_orig,
&prepend, buf);
gst_base_metadata_strip_push_buffer (filter, offset_orig, &prepend, buf);
if (GST_BUFFER_SIZE (*buf) < size) {
/* need append */
@ -1008,7 +1591,7 @@ done:
if (need_append) {
/* FIXME: together with SEEK and
* gst_metadata_common_translate_pos_to_orig
* gst_base_metadata_translate_pos_to_orig
* this way if chunk is added in the end we are in trolble
* ...still not implemented 'cause it will not be the
* case for the time being
@ -1029,7 +1612,7 @@ gst_base_metadata_src_activate_pull (GstPad * pad, gboolean active)
ret = gst_pad_activate_pull (filter->sinkpad, active);
if (ret && filter->common.state == MT_STATE_NULL) {
if (ret && filter->state == MT_STATE_NULL) {
ret = gst_base_metadata_pull_range_base (filter);
}
@ -1047,9 +1630,12 @@ gst_base_metadata_change_state (GstElement * element, GstStateChange transition)
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
gst_base_metadata_init_members (filter);
filter->adapter_parsing = gst_adapter_new ();
gst_metadata_common_init (&filter->common, filter->options);
gst_base_metadata_reset_parsing (filter);
metadata_init (&filter->metadata, filter->options);
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (filter->metadata == NULL)
metadata_init (&filter->metadata, filter->options);
break;
default:
break;
@ -1061,22 +1647,9 @@ gst_base_metadata_change_state (GstElement * element, GstStateChange transition)
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
filter->offset = 0;
filter->offset_orig = 0;
if (filter->adapter_parsing) {
gst_adapter_clear (filter->adapter_parsing);
}
if (filter->adapter_holding) {
gst_adapter_clear (filter->adapter_holding);
}
if (filter->common.state != MT_STATE_PARSED) {
/* cleanup parser */
gst_metadata_common_dispose (&filter->common);
gst_metadata_common_init (&filter->common, filter->options);
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
gst_base_metadata_dispose_members (filter);
gst_base_metadata_reset_streaming (filter);
if (filter->state != MT_STATE_PARSED)
gst_base_metadata_reset_parsing (filter);
break;
default:
break;
@ -1108,16 +1681,40 @@ gst_base_metadata_get_option_flag (const GstBaseMetadata * metadata)
}
void
gst_base_metadata_update_segment_with_new_buffer (GstBaseMetadata * metadata,
gst_base_metadata_update_segment_with_new_buffer (GstBaseMetadata * base,
guint8 ** buf, guint32 * size, MetadataChunkType type)
{
gst_metadata_common_update_segment_with_new_buffer (&metadata->common, buf,
size, type);
int i;
MetadataChunk *inject = base->metadata->inject_chunks.chunk;
const gsize inject_len = base->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;
}
void
gst_base_metadata_chunk_array_remove_zero_size (GstBaseMetadata * metadata)
{
metadata_chunk_array_remove_zero_size (&metadata->common.metadata.
inject_chunks);
metadata_chunk_array_remove_zero_size (&metadata->metadata->inject_chunks);
}

33
ext/metadata/gstbasemetadata.h
View file

@ -45,8 +45,7 @@
#define __GST_BASE_METADATA_H__
#include <gst/gst.h>
#include "gstmetadatacommon.h"
#include "metadata.h"
G_BEGIN_DECLS
@ -84,13 +83,19 @@ typedef enum _tag_BaseMetadataType {
*/
#define GST_BASE_METADATA_SINK_PAD(obj) (GST_BASE_METADATA_CAST (obj)->sinkpad)
#define GST_BASE_METADATA_EXIF_ADAPTER(obj) (GST_BASE_METADATA_CAST (obj)->common.metadata.exif_adapter)
#define GST_BASE_METADATA_IPTC_ADAPTER(obj) (GST_BASE_METADATA_CAST (obj)->common.metadata.iptc_adapter)
#define GST_BASE_METADATA_XMP_ADAPTER(obj) (GST_BASE_METADATA_CAST (obj)->common.metadata.xmp_adapter)
#define GST_BASE_METADATA_EXIF_ADAPTER(obj) (GST_BASE_METADATA_CAST (obj)->metadata->exif_adapter)
#define GST_BASE_METADATA_IPTC_ADAPTER(obj) (GST_BASE_METADATA_CAST (obj)->metadata->iptc_adapter)
#define GST_BASE_METADATA_XMP_ADAPTER(obj) (GST_BASE_METADATA_CAST (obj)->metadata->xmp_adapter)
#define GST_BASE_METADATA_IMG_TYPE(obj) (GST_BASE_METADATA_CAST (obj)->img_type)
typedef enum _tag_MetadataState
{
MT_STATE_NULL, /* still need to check media type */
MT_STATE_PARSED
} MetadataState;
/**
* GstBaseMetadata:
* @element: the parent element.
@ -104,26 +109,32 @@ struct _GstBaseMetadata
/*< protected >*/
GstPad *sinkpad, *srcpad;
MetaData *metadata; /* handle for parsing module */
ImageType img_type;
/*< private >*/
GstMetadataCommon common;
gint64 duration_orig; /* durarion of stream */
gint64 duration; /* durarion of modified stream */
MetadataState state;
MetaOptions options;
gboolean need_processing;
gboolean need_processing; /* still need some action before send first buffer */
GstAdapter *adapter_parsing;
GstAdapter *adapter_holding;
guint32 next_offset;
guint32 next_size;
ImageType img_type;
gboolean need_more_data;
gint64 offset_orig; /* offset in original stream */
gint64 offset; /* offset in current stream */
GstBuffer * append_buffer;
GstBuffer * prepend_buffer;
gboolean need_more_data;
};
struct _GstBaseMetadataClass

630
ext/metadata/gstmetadatacommon.c
View file

@ -1,630 +0,0 @@
/*
* 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, MetaOptions options)
{
metadata_init (&common->metadata, 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
View file

@ -1,96 +0,0 @@
/*
* 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, MetaOptions 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__ */

78
ext/metadata/metadata.c
View file

@ -68,28 +68,36 @@ metadata_parse_none (MetaData * meta_data, const guint8 * buf,
* Look at 'MetaOptions' to see the available options.
*/
void
metadata_init (MetaData * meta_data, const MetaOptions options)
metadata_init (MetaData ** meta_data, const MetaOptions options)
{
meta_data->state = STATE_NULL;
meta_data->img_type = IMG_NONE;
meta_data->options = options;
meta_data->offset_orig = 0;
meta_data->exif_adapter = NULL;
meta_data->iptc_adapter = NULL;
meta_data->xmp_adapter = NULL;
if (meta_data->options & META_OPT_DEMUX) {
if (meta_data == NULL)
return;
if ((*meta_data))
metadata_dispose (meta_data);
(*meta_data) = g_new (MetaData, 1);
(*meta_data)->state = STATE_NULL;
(*meta_data)->img_type = IMG_NONE;
(*meta_data)->options = options;
(*meta_data)->offset_orig = 0;
(*meta_data)->exif_adapter = NULL;
(*meta_data)->iptc_adapter = NULL;
(*meta_data)->xmp_adapter = NULL;
if ((*meta_data)->options & META_OPT_DEMUX) {
/* when parsing we will probably strip only 3 chunk (exif, iptc and xmp)
so we use 4 just in case there is more than one chunk of them.
But this is just for convinience, 'cause the chunk_array incriases dinamically */
metadata_chunk_array_init (&meta_data->strip_chunks, 4);
metadata_chunk_array_init (&(*meta_data)->strip_chunks, 4);
/* at most 1 chunk will be injected (JPEG JFIF) */
metadata_chunk_array_init (&meta_data->inject_chunks, 1);
metadata_chunk_array_init (&(*meta_data)->inject_chunks, 1);
} else {
/* at most 1 chunk will be striped (JPEG JFIF) */
metadata_chunk_array_init (&meta_data->strip_chunks, 1);
metadata_chunk_array_init (&(*meta_data)->strip_chunks, 1);
/* at most 3 chunk will be injected (EXIF, IPTC, XMP) */
metadata_chunk_array_init (&meta_data->inject_chunks, 3);
metadata_chunk_array_init (&(*meta_data)->inject_chunks, 3);
}
}
@ -99,42 +107,48 @@ metadata_init (MetaData * meta_data, const MetaOptions options)
* Call this function to free any resource allocated by 'metadata_init'
*/
void
metadata_dispose (MetaData * meta_data)
metadata_dispose (MetaData ** meta_data)
{
switch (meta_data->img_type) {
if (meta_data == NULL || (*meta_data) == NULL)
return;
switch ((*meta_data)->img_type) {
case IMG_JPEG:
if (G_LIKELY (meta_data->options & META_OPT_DEMUX))
metadataparse_jpeg_dispose (&meta_data->format_data.jpeg_parse);
if (G_LIKELY ((*meta_data)->options & META_OPT_DEMUX))
metadataparse_jpeg_dispose (&(*meta_data)->format_data.jpeg_parse);
else
metadatamux_jpeg_dispose (&meta_data->format_data.jpeg_mux);
metadatamux_jpeg_dispose (&(*meta_data)->format_data.jpeg_mux);
break;
case IMG_PNG:
if (G_LIKELY (meta_data->options & META_OPT_DEMUX))
metadataparse_png_dispose (&meta_data->format_data.png_parse);
if (G_LIKELY ((*meta_data)->options & META_OPT_DEMUX))
metadataparse_png_dispose (&(*meta_data)->format_data.png_parse);
else
metadatamux_png_dispose (&meta_data->format_data.png_mux);
metadatamux_png_dispose (&(*meta_data)->format_data.png_mux);
break;
}
metadata_chunk_array_free (&meta_data->strip_chunks);
metadata_chunk_array_free (&meta_data->inject_chunks);
metadata_chunk_array_free (&(*meta_data)->strip_chunks);
metadata_chunk_array_free (&(*meta_data)->inject_chunks);
if (meta_data->xmp_adapter) {
gst_object_unref (meta_data->xmp_adapter);
meta_data->xmp_adapter = NULL;
if ((*meta_data)->xmp_adapter) {
gst_object_unref ((*meta_data)->xmp_adapter);
(*meta_data)->xmp_adapter = NULL;
}
if (meta_data->iptc_adapter) {
gst_object_unref (meta_data->iptc_adapter);
meta_data->iptc_adapter = NULL;
if ((*meta_data)->iptc_adapter) {
gst_object_unref ((*meta_data)->iptc_adapter);
(*meta_data)->iptc_adapter = NULL;
}
if (meta_data->exif_adapter) {
gst_object_unref (meta_data->exif_adapter);
meta_data->exif_adapter = NULL;
if ((*meta_data)->exif_adapter) {
gst_object_unref ((*meta_data)->exif_adapter);
(*meta_data)->exif_adapter = NULL;
}
g_free (*meta_data);
*meta_data = NULL;
}
/*

6
ext/metadata/metadata.h
View file

@ -104,11 +104,11 @@ typedef struct _tag_MetaData
} MetaData;
#define META_DATA_IMG_TYPE(p) (p).img_type
#define META_DATA_IMG_TYPE(p) (p)->img_type
extern void metadata_init (MetaData * meta_data, const MetaOptions options);
extern void metadata_init (MetaData ** meta_data, const MetaOptions options);
extern void metadata_dispose (MetaData * meta_data);
extern void metadata_dispose (MetaData ** meta_data);
extern MetadataParsingReturn
metadata_parse (MetaData * meta_data, const guint8 * buf,