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Some IPTC tags mapped.
Original commit message from CVS: Some IPTC tags mapped.
This commit is contained in:
parent
0f2ac9fe8b
commit
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9 changed files with 227 additions and 52 deletions
12
ChangeLog
12
ChangeLog
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@ -1,3 +1,15 @@
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2007-12-21 Edgard Lima,,,, <edgard.lima@indt.org.br>
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* ext/metadata/TODO:
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* ext/metadata/gstbasemetadata.c:
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* ext/metadata/gstbasemetadata.h:
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* ext/metadata/metadata.h:
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* ext/metadata/metadataiptc.c:
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* ext/metadata/metadatamuxjpeg.c:
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* ext/metadata/metadataparsejpeg.c:
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* ext/metadata/metadataparseutil.c:
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Some IPTC tags mapped.
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2007-12-21 Edgard Lima <edgard.lima@indt.org.br>
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* ext/metadata/Makefile.am:
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@ -1,11 +1,14 @@
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This file contains a list of things to be done as well some open issues (questions) related to design/implementation.
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* 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.
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INFO:
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1- 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.
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2- to see what tags are mapped so far run 'grep -n GST_TAG *.[ch]' into this folder.
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TODO:
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1- Add individual tags IPTC and XMP (and more for EXIF)
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1- Add individual XMP tags (and more for EXIF and IPTC)
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2- Get properties like 'width' and 'height' from caps
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3- Review the code (in order to move to gst-plugins-good)
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4- Document how the plugin works (atchitecture and interaction beteween modules)
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@ -17,8 +20,9 @@ OPEN ISSUES:
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ex: file.jpeg has XMP, then we do filesrc ! metadataparse ! jpegdec ! pngenc ! metadatamux ! files
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is the metadata still valid? which fields are no valid anymore?
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3- Add GST_TYPE_FRACTION support for GStreamer TAGS
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4- currently, in JPEG files, if there is a Photoshop segment, everything inside it but IPTC will be lost. From the point of view of implementation it is easy, but I still don't now how to solve from the point of view of "designing". Anyway I think it is not so important.
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KNOWN BUGS
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1- exposure-time, exposure-program and fnumber can't be read from a file saved from scratch (whithout WHOLE_CHUNK from previous file)
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I believe it is a bu in libexif
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I believe it is a bug in libexif
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@ -263,10 +263,10 @@ gboolean
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gst_base_metadata_strip_push_buffer (GstBaseMetadata * base,
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gint64 offset_orig, GstBuffer ** prepend, GstBuffer ** buf)
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{
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MetadataChunk *strip = base->metadata->strip_chunks.chunk;
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MetadataChunk *inject = base->metadata->inject_chunks.chunk;
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const gsize strip_len = base->metadata->strip_chunks.len;
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const gsize inject_len = base->metadata->inject_chunks.len;
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MetadataChunk *strip = META_DATA_STRIP_CHUNKS (base->metadata).chunk;
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MetadataChunk *inject = META_DATA_INJECT_CHUNKS (base->metadata).chunk;
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const gsize strip_len = META_DATA_STRIP_CHUNKS (base->metadata).len;
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const gsize inject_len = META_DATA_INJECT_CHUNKS (base->metadata).len;
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gboolean buffer_reallocated = FALSE;
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@ -493,10 +493,10 @@ gboolean
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gst_base_metadata_translate_pos_to_orig (GstBaseMetadata * base,
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gint64 pos, gint64 * orig_pos, GstBuffer ** buf)
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{
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MetadataChunk *strip = base->metadata->strip_chunks.chunk;
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MetadataChunk *inject = base->metadata->inject_chunks.chunk;
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const gsize strip_len = base->metadata->strip_chunks.len;
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const gsize inject_len = base->metadata->inject_chunks.len;
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MetadataChunk *strip = META_DATA_STRIP_CHUNKS (base->metadata).chunk;
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MetadataChunk *inject = META_DATA_INJECT_CHUNKS (base->metadata).chunk;
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const gsize strip_len = META_DATA_STRIP_CHUNKS (base->metadata).len;
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const gsize inject_len = META_DATA_INJECT_CHUNKS (base->metadata).len;
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const gint64 duration_orig = base->duration_orig;
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const gint64 duration = base->duration;
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@ -597,8 +597,8 @@ gst_base_metadata_calculate_offsets (GstBaseMetadata * base)
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int i, j;
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guint32 append_size;
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guint32 bytes_striped, bytes_inject;
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MetadataChunk *strip = base->metadata->strip_chunks.chunk;
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MetadataChunk *inject = base->metadata->inject_chunks.chunk;
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MetadataChunk *strip = META_DATA_STRIP_CHUNKS (base->metadata).chunk;
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MetadataChunk *inject = META_DATA_INJECT_CHUNKS (base->metadata).chunk;
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gsize strip_len;
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gsize inject_len;
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@ -607,8 +607,8 @@ gst_base_metadata_calculate_offsets (GstBaseMetadata * base)
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metadata_lazy_update (base->metadata);
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strip_len = base->metadata->strip_chunks.len;
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inject_len = base->metadata->inject_chunks.len;
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strip_len = META_DATA_STRIP_CHUNKS (base->metadata).len;
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inject_len = META_DATA_INJECT_CHUNKS (base->metadata).len;
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bytes_striped = 0;
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bytes_inject = 0;
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@ -1661,23 +1661,22 @@ done:
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}
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void
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gst_base_metadata_set_option_flag (GstBaseMetadata * metadata,
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MetaOptions options)
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gst_base_metadata_set_option_flag (GstBaseMetadata * base, MetaOptions options)
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{
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metadata->options |= options;
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base->options |= options;
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}
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void
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gst_base_metadata_unset_option_flag (GstBaseMetadata * metadata,
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gst_base_metadata_unset_option_flag (GstBaseMetadata * base,
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MetaOptions options)
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{
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metadata->options &= ~options;
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base->options &= ~options;
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}
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MetaOptions
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gst_base_metadata_get_option_flag (const GstBaseMetadata * metadata)
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gst_base_metadata_get_option_flag (const GstBaseMetadata * base)
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{
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return metadata->options;
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return base->options;
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}
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void
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@ -1685,8 +1684,8 @@ gst_base_metadata_update_segment_with_new_buffer (GstBaseMetadata * base,
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guint8 ** buf, guint32 * size, MetadataChunkType type)
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{
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int i;
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MetadataChunk *inject = base->metadata->inject_chunks.chunk;
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const gsize inject_len = base->metadata->inject_chunks.len;
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MetadataChunk *inject = META_DATA_INJECT_CHUNKS (base->metadata).chunk;
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const gsize inject_len = META_DATA_INJECT_CHUNKS (base->metadata).len;
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if (!(buf && size))
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goto done;
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@ -1714,7 +1713,8 @@ done:
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}
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void
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gst_base_metadata_chunk_array_remove_zero_size (GstBaseMetadata * metadata)
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gst_base_metadata_chunk_array_remove_zero_size (GstBaseMetadata * base)
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{
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metadata_chunk_array_remove_zero_size (&metadata->metadata->inject_chunks);
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metadata_chunk_array_remove_zero_size (&META_DATA_INJECT_CHUNKS (base->
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metadata));
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}
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@ -156,20 +156,20 @@ extern GType
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gst_base_metadata_get_type (void);
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extern void
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gst_base_metadata_set_option_flag(GstBaseMetadata *metadata, const MetaOptions options);
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gst_base_metadata_set_option_flag(GstBaseMetadata *base, const MetaOptions options);
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extern void
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gst_base_metadata_unset_option_flag(GstBaseMetadata *metadata, const MetaOptions options);
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gst_base_metadata_unset_option_flag(GstBaseMetadata *base, const MetaOptions options);
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extern MetaOptions
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gst_base_metadata_get_option_flag(const GstBaseMetadata *metadata);
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gst_base_metadata_get_option_flag(const GstBaseMetadata *base);
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extern void
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gst_base_metadata_update_segment_with_new_buffer (GstBaseMetadata *metadata,
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gst_base_metadata_update_segment_with_new_buffer (GstBaseMetadata *base,
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guint8 ** buf, guint32 * size, MetadataChunkType type);
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extern void
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gst_base_metadata_chunk_array_remove_zero_size (GstBaseMetadata *metadata);
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gst_base_metadata_chunk_array_remove_zero_size (GstBaseMetadata *base);
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G_END_DECLS
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#endif /* __GST_BASE_METADATA_H__ */
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@ -106,6 +106,9 @@ typedef struct _tag_MetaData
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#define META_DATA_IMG_TYPE(p) (p)->img_type
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#define META_DATA_STRIP_CHUNKS(p) (p)->strip_chunks
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#define META_DATA_INJECT_CHUNKS(p) (p)->inject_chunks
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extern void metadata_init (MetaData ** meta_data, const MetaOptions options);
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extern void metadata_dispose (MetaData ** meta_data);
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@ -75,11 +75,74 @@ metadatamux_iptc_create_chunk_from_tag_list (guint8 ** buf, guint32 * size,
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#else /* ifndef HAVE_IPTC */
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#include <iptc-data.h>
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#include <iptc-tag.h>
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#include <string.h>
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#include <gst/gsttaglist.h>
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typedef struct _tag_MEUserData
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{
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GstTagList *taglist;
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GstTagMergeMode mode;
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} MEUserData;
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typedef struct _tag_MapIntStr
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{
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IptcRecord record;
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IptcTag iptc;
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const gchar *str;
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} MapIntStr;
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static void
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iptc_data_foreach_dataset_func (IptcDataSet * dataset, void *user_data);
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/* *INDENT-OFF* */
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static MapIntStr mappedTags[] = {
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{IPTC_RECORD_APP_2, IPTC_TAG_OBJECT_NAME, /*ASCII*/ GST_TAG_TITLE /*STRING*/},
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{IPTC_RECORD_APP_2, IPTC_TAG_BYLINE, /*ASCII*/ GST_TAG_COMPOSER /*STRING*/},
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{IPTC_RECORD_APP_2, IPTC_TAG_CAPTION, /*ASCII*/ GST_TAG_DESCRIPTION /*STRING*/},
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{IPTC_RECORD_APP_2, IPTC_TAG_COPYRIGHT_NOTICE, /*ASCII*/ GST_TAG_COPYRIGHT /*STRING*/},
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{0, 0, NULL}
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};
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/* *INDENT-ON* */
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static const gchar *
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metadataparse_iptc_get_tag_from_iptc (IptcTag iptc, GType * type,
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IptcRecord * record)
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{
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int i = 0;
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while (mappedTags[i].iptc) {
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if (iptc == mappedTags[i].iptc) {
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*type = gst_tag_get_type (mappedTags[i].str);
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*record = mappedTags[i].record;
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break;
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}
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++i;
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}
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return mappedTags[i].str;
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}
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static IptcTag
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metadataparse_iptc_get_iptc_from_tag (const gchar * tag, GType * type,
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IptcRecord * record)
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{
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int i = 0;
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while (mappedTags[i].iptc) {
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if (0 == strcmp (mappedTags[i].str, tag)) {
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*type = gst_tag_get_type (tag);
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*record = mappedTags[i].record;
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break;
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}
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++i;
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}
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return mappedTags[i].iptc;
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}
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void
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metadataparse_iptc_tag_list_add (GstTagList * taglist, GstTagMergeMode mode,
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GstAdapter * adapter, MetadataTagMapping mapping)
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@ -87,6 +150,7 @@ metadataparse_iptc_tag_list_add (GstTagList * taglist, GstTagMergeMode mode,
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const guint8 *buf;
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guint32 size;
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IptcData *iptc = NULL;
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MEUserData user_data = { taglist, mode };
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if (adapter == NULL || (size = gst_adapter_available (adapter)) == 0) {
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goto done;
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@ -108,7 +172,7 @@ metadataparse_iptc_tag_list_add (GstTagList * taglist, GstTagMergeMode mode,
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}
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iptc_data_foreach_dataset (iptc, iptc_data_foreach_dataset_func,
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(void *) taglist);
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(void *) &user_data);
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done:
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@ -123,20 +187,81 @@ static void
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iptc_data_foreach_dataset_func (IptcDataSet * dataset, void *user_data)
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{
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char buf[256];
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GstTagList *taglist = (GstTagList *) user_data;
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char buf[1024];
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MEUserData *meudata = (MEUserData *) user_data;
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GType type;
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IptcRecord record;
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const gchar *tag =
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metadataparse_iptc_get_tag_from_iptc (dataset->tag, &type, &record);
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const gchar *value = iptc_dataset_get_as_str (dataset, buf, 1024);
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if (!tag)
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goto done;
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gst_tag_list_add (meudata->taglist, meudata->mode, tag, value, NULL);
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done:
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GST_LOG ("name -> %s", iptc_tag_get_name (dataset->record, dataset->tag));
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GST_LOG ("title -> %s", iptc_tag_get_title (dataset->record, dataset->tag));
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GST_LOG ("description -> %s", iptc_tag_get_description (dataset->record,
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dataset->tag));
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GST_LOG ("value = %s", iptc_dataset_get_as_str (dataset, buf, 256));
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GST_LOG ("value = %s", value);
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GST_LOG ("record = %d", dataset->record);
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return;
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}
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static void
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metadataiptc_for_each_tag_in_list (const GstTagList * list, const gchar * tag,
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gpointer user_data)
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{
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IptcData *iptc = (IptcData *) user_data;
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IptcTag iptc_tag;
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IptcRecord record;
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GType type;
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IptcDataSet *dataset = NULL;
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gboolean new_dataset = FALSE;
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gchar *tag_value = NULL;
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iptc_tag = metadataparse_iptc_get_iptc_from_tag (tag, &type, &record);
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if (!iptc_tag)
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goto done;
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dataset = iptc_data_get_dataset (iptc, record, iptc_tag);
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if (!dataset) {
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dataset = iptc_dataset_new ();
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new_dataset = TRUE;
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}
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iptc_dataset_set_tag (dataset, record, iptc_tag);
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if (gst_tag_list_get_string (list, tag, &tag_value)) {
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iptc_dataset_set_data (dataset, tag_value, strlen (tag_value),
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IPTC_DONT_VALIDATE);
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g_free (tag_value);
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tag_value = NULL;
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}
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if (new_dataset)
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iptc_data_add_dataset (iptc, dataset);
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done:
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if (dataset)
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iptc_dataset_unref (dataset);
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}
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void
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metadatamux_iptc_create_chunk_from_tag_list (guint8 ** buf, guint32 * size,
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const GstTagList * taglist)
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{
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IptcData *iptc = NULL;
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GstBuffer *iptc_chunk = NULL;
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const GValue *val = NULL;
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|
@ -152,14 +277,25 @@ metadatamux_iptc_create_chunk_from_tag_list (guint8 ** buf, guint32 * size,
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if (val) {
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iptc_chunk = gst_value_get_buffer (val);
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if (iptc_chunk) {
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*size = GST_BUFFER_SIZE (iptc_chunk);
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*buf = g_new (guint8, *size);
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memcpy (*buf, GST_BUFFER_DATA (iptc_chunk), *size);
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iptc = iptc_data_new_from_data (GST_BUFFER_DATA (iptc_chunk),
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GST_BUFFER_SIZE (iptc_chunk));
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}
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}
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if (!iptc) {
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iptc = iptc_data_new ();
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}
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gst_tag_list_foreach (taglist, metadataiptc_for_each_tag_in_list, iptc);
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iptc_data_save (iptc, buf, size);
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done:
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if (iptc)
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iptc_data_unref (iptc);
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return;
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}
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|
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@ -75,6 +75,35 @@ metadatamux_wrap_chunk (MetadataChunk * chunk, const guint8 * buf,
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}
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}
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#ifdef HAVE_IPTC
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static gboolean
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metadatamux_wrap_iptc_with_ps3 (unsigned char **buf, unsigned int *buf_size)
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{
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unsigned int out_size = *buf_size + 4096;
|
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unsigned char *outbuf = g_new (unsigned char, out_size);
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int size_written;
|
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gboolean ret = TRUE;
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size_written =
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iptc_jpeg_ps3_save_iptc (NULL, 0, *buf, *buf_size, outbuf, out_size);
|
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|
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g_free (*buf);
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*buf = NULL;
|
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*buf_size = 0;
|
||||
|
||||
if (size_written < 0) {
|
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g_free (outbuf);
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ret = FALSE;
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} else {
|
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*buf_size = size_written;
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*buf = outbuf;
|
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}
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return ret;
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}
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#endif /* #ifdef HAVE_IPTC */
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void
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metadatamux_jpeg_lazy_update (JpegMuxData * jpeg_data)
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{
|
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|
@ -93,21 +122,12 @@ metadatamux_jpeg_lazy_update (JpegMuxData * jpeg_data)
|
|||
case MD_CHUNK_IPTC:
|
||||
#ifdef HAVE_IPTC
|
||||
{
|
||||
unsigned int size = jpeg_data->inject_chunks->chunk[i].size + 256;
|
||||
unsigned char *buf = g_new (guint8, size);
|
||||
|
||||
size = iptc_jpeg_ps3_save_iptc (NULL, 0,
|
||||
jpeg_data->inject_chunks->chunk[i].data,
|
||||
jpeg_data->inject_chunks->chunk[i].size, buf, size);
|
||||
if (size > 0) {
|
||||
g_free (jpeg_data->inject_chunks->chunk[i].data);
|
||||
jpeg_data->inject_chunks->chunk[i].data = buf;
|
||||
jpeg_data->inject_chunks->chunk[i].size = size;
|
||||
if (metadatamux_wrap_iptc_with_ps3 (&jpeg_data->inject_chunks->
|
||||
chunk[i].data, &jpeg_data->inject_chunks->chunk[i].size)) {
|
||||
metadatamux_wrap_chunk (&jpeg_data->inject_chunks->chunk[i], NULL,
|
||||
0, 0xFF, 0xED);
|
||||
} else {
|
||||
GST_ERROR ("Invalid IPTC chunk\n");
|
||||
g_free (buf);
|
||||
/* FIXME: remove entry from list */
|
||||
}
|
||||
}
|
||||
|
@ -225,7 +245,6 @@ metadatamux_jpeg_reading (JpegMuxData * jpeg_data, guint8 ** buf,
|
|||
static const char JfifHeader[] = "JFIF";
|
||||
static const unsigned char ExifHeader[] =
|
||||
{ 0x45, 0x78, 0x69, 0x66, 0x00, 0x00 };
|
||||
static const char IptcHeader[] = "Photoshop 3.0";
|
||||
static const char XmpHeader[] = "http://ns.adobe.com/xap/1.0/";
|
||||
|
||||
*next_start = *buf;
|
||||
|
|
|
@ -199,7 +199,7 @@ metadataparse_jpeg_reading (JpegParseData * jpeg_data, guint8 ** buf,
|
|||
static const char JfifHeader[] = "JFIF";
|
||||
static const unsigned char ExifHeader[] =
|
||||
{ 0x45, 0x78, 0x69, 0x66, 0x00, 0x00 };
|
||||
static const char IptcHeader[] = "Photoshop 3.0";
|
||||
static const char PhotoshopHeader[] = "Photoshop 3.0";
|
||||
static const char XmpHeader[] = "http://ns.adobe.com/xap/1.0/";
|
||||
|
||||
*next_start = *buf;
|
||||
|
@ -354,7 +354,7 @@ metadataparse_jpeg_reading (JpegParseData * jpeg_data, guint8 ** buf,
|
|||
}
|
||||
|
||||
|
||||
if (0 == memcmp (IptcHeader, *buf, 14)) {
|
||||
if (0 == memcmp (PhotoshopHeader, *buf, 14)) {
|
||||
|
||||
if (!jpeg_data->parse_only) {
|
||||
|
||||
|
|
|
@ -42,6 +42,7 @@
|
|||
*/
|
||||
|
||||
#include "metadataparseutil.h"
|
||||
#include <string.h>
|
||||
|
||||
void
|
||||
metadataparse_util_tag_list_add_chunk (GstTagList * taglist,
|
||||
|
|
Loading…
Reference in a new issue