summaryrefslogtreecommitdiffstats
path: root/ext/metadata/metadataparse.c
diff options
context:
space:
mode:
authorEdgard Lima <edgard.lima@indt.org.br>2007-11-28 08:13:52 +0000
committerEdgard Lima <edgard.lima@indt.org.br>2007-11-28 08:13:52 +0000
commitc1e6c76cdb550c564f58e84c66b3e993ea36227d (patch)
tree612c9146a4528e8810887f99d13c459c6be50206 /ext/metadata/metadataparse.c
parent307925e3077da26e33b06a6c53080ebf07328847 (diff)
downloadgst-plugins-bad-c1e6c76cdb550c564f58e84c66b3e993ea36227d.tar.gz
gst-plugins-bad-c1e6c76cdb550c564f58e84c66b3e993ea36227d.tar.bz2
gst-plugins-bad-c1e6c76cdb550c564f58e84c66b3e993ea36227d.zip
Small fixes in get_range and better structure for generic muxer and demuxer.
Original commit message from CVS: Small fixes in get_range and better structure for generic muxer and demuxer.
Diffstat (limited to 'ext/metadata/metadataparse.c')
-rw-r--r--ext/metadata/metadataparse.c224
1 files changed, 0 insertions, 224 deletions
diff --git a/ext/metadata/metadataparse.c b/ext/metadata/metadataparse.c
deleted file mode 100644
index cb22c795..00000000
--- a/ext/metadata/metadataparse.c
+++ /dev/null
@@ -1,224 +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.
- */
-
-#include <string.h>
-
-#include "metadataparse.h"
-
-/*
- *static declarations
- */
-
-static int
-metadataparse_parse_none (ParseData * parse_data, const guint8 * buf,
- guint32 * bufsize, guint8 ** next_start, guint32 * next_size);
-
-/*
- * extern implementation
- */
-
-void
-metadataparse_init (ParseData * parse_data)
-{
- parse_data->state = STATE_NULL;
- parse_data->img_type = IMG_NONE;
- parse_data->option = PARSE_OPT_ALL;
- parse_data->offset_orig = 0;
- parse_data->exif_adapter = NULL;
- parse_data->iptc_adapter = NULL;
- parse_data->xmp_adapter = NULL;
- metadata_chunk_array_init (&parse_data->strip_chunks, 4);
- metadata_chunk_array_init (&parse_data->inject_chunks, 1);
-}
-
-/*
- * offset: number of bytes to jump (just a hint to jump a chunk)
- * size: number of bytes to read on next call (just a hint to get all chunk)
- * return:
- * -1 -> error
- * 0 -> done
- * 1 -> need more data
- */
-int
-metadataparse_parse (ParseData * parse_data, const guint8 * buf,
- guint32 bufsize, guint32 * next_offset, guint32 * next_size)
-{
-
- int ret = 0;
-
- guint8 *next_start = (guint8 *) buf;
-
- if (parse_data->state == STATE_NULL) {
- ret =
- metadataparse_parse_none (parse_data, buf, &bufsize, &next_start,
- next_size);
- if (ret == 0)
- parse_data->state = STATE_READING;
- else
- goto done;
- }
-
- switch (parse_data->img_type) {
- case IMG_JPEG:
- ret =
- metadataparse_jpeg_parse (&parse_data->format_data.jpeg,
- (guint8 *) buf, &bufsize, parse_data->offset_orig, &next_start,
- next_size);
- break;
- case IMG_PNG:
- ret =
- metadataparse_png_parse (&parse_data->format_data.png,
- (guint8 *) buf, &bufsize, parse_data->offset_orig, &next_start,
- next_size);
- break;
- default:
- /* unexpected */
- ret = -1;
- goto done;
- break;
- }
-
- *next_offset = next_start - buf;
- parse_data->offset_orig += *next_offset;
-
-done:
-
- if (ret == 0) {
- parse_data->state = STATE_DONE;
- }
-
- return ret;
-}
-
-void
-metadataparse_dispose (ParseData * parse_data)
-{
-
- switch (parse_data->img_type) {
- case IMG_JPEG:
- metadataparse_jpeg_dispose (&parse_data->format_data.jpeg);
- break;
- case IMG_PNG:
- metadataparse_png_dispose (&parse_data->format_data.png);
- break;
- }
-
- metadata_chunk_array_free (&parse_data->strip_chunks);
- metadata_chunk_array_free (&parse_data->inject_chunks);
-
- if (parse_data->xmp_adapter) {
- gst_object_unref (parse_data->xmp_adapter);
- parse_data->xmp_adapter = NULL;
- }
-
- if (parse_data->iptc_adapter) {
- gst_object_unref (parse_data->iptc_adapter);
- parse_data->iptc_adapter = NULL;
- }
-
- if (parse_data->exif_adapter) {
- gst_object_unref (parse_data->exif_adapter);
- parse_data->exif_adapter = NULL;
- }
-
-}
-
-/*
- * static implementation
- */
-
-/* find image type */
-static int
-metadataparse_parse_none (ParseData * parse_data, const guint8 * buf,
- guint32 * bufsize, guint8 ** next_start, guint32 * next_size)
-{
-
- int ret = -1;
- GstAdapter **exif = NULL;
- GstAdapter **iptc = NULL;
- GstAdapter **xmp = NULL;
-
- *next_start = (guint8 *) buf;
-
- parse_data->img_type = IMG_NONE;
-
- if (*bufsize < 3) {
- *next_size = 3;
- ret = 1;
- goto done;
- }
-
- if (parse_data->option & PARSE_OPT_EXIF)
- exif = &parse_data->exif_adapter;
- if (parse_data->option & PARSE_OPT_IPTC)
- iptc = &parse_data->iptc_adapter;
- if (parse_data->option & PARSE_OPT_XMP)
- xmp = &parse_data->xmp_adapter;
-
- if (buf[0] == 0xFF && buf[1] == 0xD8 && buf[2] == 0xFF) {
- metadataparse_jpeg_init (&parse_data->format_data.jpeg, exif, iptc, xmp,
- &parse_data->strip_chunks, &parse_data->inject_chunks);
- ret = 0;
- parse_data->img_type = IMG_JPEG;
- goto done;
- }
-
- if (*bufsize < 8) {
- *next_size = 8;
- ret = 1;
- goto done;
- }
-
- if (buf[0] == 0x89 && buf[1] == 0x50 && buf[2] == 0x4E && buf[3] == 0x47 &&
- buf[4] == 0x0D && buf[5] == 0x0A && buf[6] == 0x1A && buf[7] == 0x0A) {
- metadataparse_png_init (&parse_data->format_data.png, exif, iptc, xmp,
- &parse_data->strip_chunks, &parse_data->inject_chunks);
- ret = 0;
- parse_data->img_type = IMG_PNG;
- goto done;
- }
-
-done:
-
- return ret;
-}