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author | Edgard Lima <edgard.lima@indt.org.br> | 2007-11-28 08:13:52 +0000 |
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committer | Edgard Lima <edgard.lima@indt.org.br> | 2007-11-28 08:13:52 +0000 |
commit | c1e6c76cdb550c564f58e84c66b3e993ea36227d (patch) | |
tree | 612c9146a4528e8810887f99d13c459c6be50206 /ext/metadata/metadataparse.c | |
parent | 307925e3077da26e33b06a6c53080ebf07328847 (diff) | |
download | gst-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.c | 224 |
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; -} |