--- /dev/null
+/**
+ * Copyright (C) 2008 by INdT
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * @author Andre Moreira Magalhaes <andre.magalhaes@openbossa.org>
+ */
+
+/**
+ * @brief
+ *
+ * asf/wma file parser.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <lightmediascanner_plugin.h>
+#include <lightmediascanner_db.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+enum StreamTypes {
+ STREAM_TYPE_UNKNOWN = 0,
+ STREAM_TYPE_AUDIO,
+ STREAM_TYPE_VIDEO
+};
+
+enum AttributeTypes {
+ ATTR_TYPE_UNICODE = 0,
+ ATTR_TYPE_BYTES,
+ ATTR_TYPE_BOOL,
+ ATTR_TYPE_DWORD,
+ ATTR_TYPE_QWORD,
+ ATTR_TYPE_WORD,
+ ATTR_TYPE_GUID
+};
+
+struct asf_info {
+ struct lms_string_size title;
+ struct lms_string_size artist;
+ struct lms_string_size album;
+ struct lms_string_size genre;
+ unsigned char trackno;
+};
+
+struct plugin {
+ struct lms_plugin plugin;
+ lms_db_audio_t *audio_db;
+ lms_db_video_t *video_db;
+ lms_charset_conv_t *cs_conv;
+};
+
+static const char _name[] = "asf";
+static const struct lms_string_size _exts[] = {
+ LMS_STATIC_STRING_SIZE(".wma"),
+ LMS_STATIC_STRING_SIZE(".wmv"),
+ LMS_STATIC_STRING_SIZE(".asf")
+};
+
+static const char header_guid[16] = "\x30\x26\xB2\x75\x8E\x66\xCF\x11\xA6\xD9\x00\xAA\x00\x62\xCE\x6C";
+static const char file_properties_guid[16] = "\xA1\xDC\xAB\x8C\x47\xA9\xCF\x11\x8E\xE4\x00\xC0\x0C\x20\x53\x65";
+static const char stream_properties_guid[16] = "\x91\x07\xDC\xB7\xB7\xA9\xCF\x11\x8E\xE6\x00\xC0\x0C\x20\x53\x65";
+static const char stream_type_audio_guid[16] = "\x40\x9E\x69\xF8\x4D\x5B\xCF\x11\xA8\xFD\x00\x80\x5F\x5C\x44\x2B";
+static const char stream_type_video_guid[16] = "\xC0\xEF\x19\xBC\x4D\x5B\xCF\x11\xA8\xFD\x00\x80\x5F\x5C\x44\x2B";
+static const char content_description_guid[16] = "\x33\x26\xB2\x75\x8E\x66\xCF\x11\xA6\xD9\x00\xAA\x00\x62\xCE\x6C";
+static const char extended_content_description_guid[16] = "\x40\xA4\xD0\xD2\x07\xE3\xD2\x11\x97\xF0\x00\xA0\xC9\x5E\xA8\x50";
+static const char header_extension_guid[16] = "\xb5\x03\xbf_.\xa9\xcf\x11\x8e\xe3\x00\xc0\x0c Se";
+static const char metadata_guid[16] = "\xEA\xCB\xF8\xC5\xAF[wH\204g\xAA\214D\xFAL\xCA";
+static const char metadata_library_guid[16] = "\224\034#D\230\224\321I\241A\x1d\x13NEpT";
+static const char content_encryption_object_guid[16] = "\xFB\xB3\x11\x22\x23\xBD\xD2\x11\xB4\xB7\x00\xA0\xC9\x55\xFC\x6E";
+static const char extended_content_encryption_object_guid[16] = "\x14\xE6\x8A\x29\x22\x26\x17\x4C\xB9\x35\xDA\xE0\x7E\xE9\x28\x9C";
+
+static long long
+_to_number(const char *data, unsigned int type_size, unsigned int data_size)
+{
+ long long sum = 0;
+ unsigned int last, i;
+
+ last = data_size > type_size ? type_size - 1 : data_size - 1;
+
+ for (i = 0; i <= last; i++)
+ sum |= (unsigned char) (data[i]) << (i * 8);
+
+ return sum;
+}
+
+static short
+_read_word(int fd)
+{
+ char v[2];
+ if (read(fd, &v, 2) != 2) {
+ return 0;
+ }
+ return (unsigned int) _to_number(v, sizeof(unsigned short), 2);
+}
+
+static unsigned int
+_read_dword(int fd)
+{
+ char v[4];
+ if (read(fd, &v, 4) != 4) {
+ return 0;
+ }
+ return (unsigned int) _to_number(v, sizeof(unsigned int), 4);
+}
+
+static long long
+_read_qword(int fd)
+{
+ char v[8];
+ if (read(fd, &v, 8) != 8) {
+ return 0;
+ }
+ return (unsigned int) _to_number(v, sizeof(unsigned long long), 8);
+}
+
+static int
+_read_string(int fd, size_t count, char **str, size_t *len)
+{
+ char *data;
+ size_t data_size, size;
+
+ data = (char *) malloc(sizeof(char) * count);
+ data_size = read(fd, data, count);
+ if (data_size == -1) {
+ free(data);
+ return -1;
+ }
+
+ size = data_size;
+ while (size >= 2) {
+ if (data[size - 1] != '\0' || data[size - 2] != '\0') {
+ break;
+ }
+ size -= 2;
+ }
+
+ *str = data;
+ *len = size;
+
+ return 0;
+}
+
+static void
+_parse_content_description(lms_charset_conv_t *cs_conv, int fd, struct asf_info *info)
+{
+ int title_length = _read_word(fd);
+ int artist_length = _read_word(fd);
+ int copyright_length = _read_word(fd);
+ int comment_length = _read_word(fd);
+ int rating_length = _read_word(fd);
+ int len;
+ char *copyright, *comment, *rating;
+
+ _read_string(fd, title_length, &info->title.str, &info->title.len);
+ lms_charset_conv_force(cs_conv, &info->title.str, &info->title.len);
+ _read_string(fd, artist_length, &info->artist.str, &info->artist.len);
+ lms_charset_conv_force(cs_conv, &info->artist.str, &info->artist.len);
+ _read_string(fd, copyright_length, ©right, &len);
+ _read_string(fd, comment_length, &comment, &len);
+ _read_string(fd, rating_length, &rating, &len);
+}
+
+static void
+_parse_attribute_name(int fd,
+ int kind,
+ char **attr_name,
+ size_t *attr_name_len,
+ int *attr_type,
+ int *attr_size)
+{
+ int attr_name_length;
+
+ /* extended content descriptor */
+ if (kind == 0) {
+ attr_name_length = _read_word(fd);
+ if (attr_name)
+ _read_string(fd, attr_name_length, attr_name, attr_name_len);
+ else
+ lseek(fd, attr_name_length, SEEK_CUR);
+ *attr_type = _read_word(fd);
+ *attr_size = _read_word(fd);
+ }
+ /* metadata & metadata library */
+ else {
+ lseek(fd, 2, SEEK_CUR); /* language */
+ lseek(fd, 2, SEEK_CUR); /* stream */
+ attr_name_length = _read_word(fd);
+ *attr_type = _read_word(fd);
+ *attr_size = _read_dword(fd);
+ if (attr_name)
+ _read_string(fd, attr_name_length, attr_name, attr_name_len);
+ else
+ lseek(fd, attr_name_length, SEEK_CUR);
+ }
+}
+
+static void
+_parse_attribute_string_data(lms_charset_conv_t *cs_conv,
+ int fd,
+ int attr_size,
+ char **attr_data,
+ size_t *attr_data_len)
+{
+ _read_string(fd, attr_size, attr_data, attr_data_len);
+ lms_charset_conv_force(cs_conv, attr_data, attr_data_len);
+}
+
+static void
+_skip_attribute_data(int fd, int kind, int attr_type, int attr_size)
+{
+ switch (attr_type) {
+ case ATTR_TYPE_WORD:
+ lseek(fd, 2, SEEK_CUR);
+ break;
+
+ case ATTR_TYPE_BOOL:
+ if (kind == 0) {
+ lseek(fd, 4, SEEK_CUR);
+ }
+ else {
+ lseek(fd, 2, SEEK_CUR);
+ }
+ break;
+
+ case ATTR_TYPE_DWORD:
+ lseek(fd, 4, SEEK_CUR);
+ break;
+
+ case ATTR_TYPE_QWORD:
+ lseek(fd, 8, SEEK_CUR);
+ break;
+
+ case ATTR_TYPE_UNICODE:
+ case ATTR_TYPE_BYTES:
+ case ATTR_TYPE_GUID:
+ lseek(fd, attr_size, SEEK_CUR);
+ break;
+
+ default:
+ break;
+ }
+}
+
+static void
+_skip_attribute(int fd, int kind)
+{
+ int attr_type, attr_size;
+ _parse_attribute_name(fd, kind, NULL, NULL, &attr_type, &attr_size);
+ _skip_attribute_data(fd, kind, attr_type, attr_size);
+}
+
+static void
+_parse_extended_content_description_object(lms_charset_conv_t *cs_conv, int fd, struct asf_info *info)
+{
+ int count = _read_word(fd);
+ char *attr_name;
+ size_t attr_name_len;
+ int attr_type, attr_size;
+ while (count--) {
+ attr_name = NULL;
+ _parse_attribute_name(fd, 0,
+ &attr_name, &attr_name_len,
+ &attr_type, &attr_size);
+ if (attr_type == ATTR_TYPE_UNICODE) {
+ lms_charset_conv_force(cs_conv, &attr_name, &attr_name_len);
+ if (strcmp(attr_name, "WM/AlbumTitle") == 0)
+ _parse_attribute_string_data(cs_conv,
+ fd, attr_size,
+ &info->album.str,
+ &info->album.len);
+ else if (strcmp(attr_name, "WM/Genre") == 0)
+ _parse_attribute_string_data(cs_conv,
+ fd, attr_size,
+ &info->genre.str,
+ &info->genre.len);
+ else if (strcmp(attr_name, "WM/TrackNumber") == 0) {
+ char *trackno;
+ size_t trackno_len;
+ _parse_attribute_string_data(cs_conv,
+ fd, attr_size,
+ &trackno,
+ &trackno_len);
+ if (trackno) {
+ info->trackno = atoi(trackno);
+ free(trackno);
+ }
+ }
+ else
+ _skip_attribute_data(fd, 0, attr_type, attr_size);
+ }
+ else
+ _skip_attribute_data(fd, 0, attr_type, attr_size);
+ if (attr_name)
+ free(attr_name);
+ }
+}
+
+static void
+_skip_metadata(int fd)
+{
+ int count = _read_word(fd);
+ while (count--) {
+ _skip_attribute(fd, 1);
+ }
+}
+
+static void
+_skip_metadata_library(int fd)
+{
+ int count = _read_word(fd);
+ while (count--) {
+ _skip_attribute(fd, 2);
+ }
+}
+
+static void
+_skip_header_extension(int fd)
+{
+ char guid[16];
+ long long size, data_size, data_pos;
+
+ lseek(fd, 18, SEEK_CUR);
+ data_size = _read_dword(fd);
+ data_pos = 0;
+ while (data_pos < data_size) {
+ read(fd, &guid, 16);
+ size = _read_qword(fd);
+ if (memcmp(guid, metadata_guid, 16) == 0) {
+ _skip_metadata(fd);
+ }
+ else if (memcmp(guid, metadata_library_guid, 16) == 0) {
+ _skip_metadata_library(fd);
+ }
+ else {
+ lseek(fd, size - 24, SEEK_CUR);
+ }
+ data_pos += size;
+ }
+}
+
+static void
+_strstrip(char **str, unsigned int *p_len)
+{
+ if (*str)
+ lms_strstrip(*str, p_len);
+
+ if (*p_len == 0 && *str) {
+ free(*str);
+ *str = NULL;
+ }
+}
+
+static void *
+_match(struct plugin *p, const char *path, int len, int base)
+{
+ int i;
+
+ i = lms_which_extension(path, len, _exts, LMS_ARRAY_SIZE(_exts));
+ if (i < 0)
+ return NULL;
+ else
+ return (void*)(i + 1);
+}
+
+static int
+_parse(struct plugin *plugin, struct lms_context *ctxt, const struct lms_file_info *finfo, void *match)
+{
+ struct asf_info info = {0};
+ struct lms_audio_info audio_info = {0};
+ struct lms_video_info video_info = {0};
+ int r, fd, num_objects, i;
+ char guid[16];
+ unsigned int size;
+ int stream_type = STREAM_TYPE_UNKNOWN;
+
+ fd = open(finfo->path, O_RDONLY);
+ if (fd < 0) {
+ perror("open");
+ return -1;
+ }
+
+ if (read(fd, &guid, 16) != 16) {
+ perror("read");
+ r = -2;
+ goto done;
+ }
+ if (memcmp(guid, header_guid, 16) != 0) {
+ fprintf(stderr, "ERROR: invalid header (%s).\n", finfo->path);
+ r = -3;
+ goto done;
+ }
+
+ size = _read_qword(fd);
+ num_objects = _read_dword(fd);
+
+ lseek(fd, 2, SEEK_CUR);
+
+ for (i = 0; i < num_objects; ++i) {
+ read(fd, &guid, 16);
+ size = _read_qword(fd);
+
+ if (memcmp(guid, file_properties_guid, 16) == 0)
+ lseek(fd, size - 24, SEEK_CUR);
+ else if (memcmp(guid, stream_properties_guid, 16) == 0) {
+ read(fd, &guid, 16);
+ if (memcmp(guid, stream_type_audio_guid, 16) == 0)
+ stream_type = STREAM_TYPE_AUDIO;
+ else if (memcmp(guid, stream_type_video_guid, 16) == 0)
+ stream_type = STREAM_TYPE_VIDEO;
+ lseek(fd, size - 40, SEEK_CUR);
+ }
+ else if (memcmp(guid, content_description_guid, 16) == 0)
+ _parse_content_description(plugin->cs_conv, fd, &info);
+ else if (memcmp(guid, extended_content_description_guid, 16) == 0)
+ _parse_extended_content_description_object(plugin->cs_conv, fd, &info);
+ else if (memcmp(guid, header_extension_guid, 16) == 0)
+ _skip_header_extension(fd);
+ else if (memcmp(guid, content_encryption_object_guid, 16) == 0 ||
+ memcmp(guid, extended_content_encryption_object_guid, 16) == 0) {
+ /* ignore DRM'd files */
+ fprintf(stderr, "ERROR: ignoring DRM'd file %s\n", finfo->path);
+ r = -4;
+ goto done;
+ }
+ else
+ lseek(fd, size - 24, SEEK_CUR);
+ }
+
+ /* try to define stream type by extension */
+ if (stream_type == STREAM_TYPE_UNKNOWN) {
+ int ext_idx = ((int)match) - 1;
+ if (strcmp(_exts[ext_idx].str, ".wma") == 0)
+ stream_type = STREAM_TYPE_AUDIO;
+ /* consider wmv and asf as video */
+ else
+ stream_type = STREAM_TYPE_VIDEO;
+ }
+
+ _strstrip(&info.title.str, &info.title.len);
+ _strstrip(&info.artist.str, &info.genre.len);
+ _strstrip(&info.album.str, &info.album.len);
+ _strstrip(&info.genre.str, &info.genre.len);
+
+ if (!info.title.str) {
+ int ext_idx;
+ if (info.title.str)
+ free(info.title.str);
+ ext_idx = ((int)match) - 1;
+ info.title.len = finfo->path_len - finfo->base - _exts[ext_idx].len;
+ info.title.str = malloc((info.title.len + 1) * sizeof(char));
+ memcpy(info.title.str, finfo->path + finfo->base, info.title.len);
+ info.title.str[info.title.len] = '\0';
+ lms_charset_conv(ctxt->cs_conv, &info.title.str, &info.title.len);
+ }
+
+#if 0
+ fprintf(stderr, "file %s info\n", finfo->path);
+ fprintf(stderr, "\ttitle='%s' len=%d\n", info.title.str, info.title.len);
+ fprintf(stderr, "\tartist='%s'\n", info.artist.str);
+ fprintf(stderr, "\talbum='%s'\n", info.album.str);
+ fprintf(stderr, "\tgenre='%s'\n", info.genre.str);
+ fprintf(stderr, "\ttrackno=%d\n", info.trackno);
+#endif
+
+ if (stream_type == STREAM_TYPE_AUDIO) {
+ audio_info.id = finfo->id;
+ audio_info.title = info.title;
+ audio_info.artist = info.artist;
+ audio_info.album = info.album;
+ audio_info.genre = info.genre;
+ audio_info.trackno = info.trackno;
+ r = lms_db_audio_add(plugin->audio_db, &audio_info);
+ }
+ else {
+ video_info.id = finfo->id;
+ video_info.title = info.title;
+ video_info.artist = info.artist;
+ r = lms_db_video_add(plugin->video_db, &video_info);
+ }
+
+ done:
+ if (info.title.str)
+ free(info.title.str);
+ if (info.artist.str)
+ free(info.artist.str);
+ if (info.album.str)
+ free(info.album.str);
+ if (info.genre.str)
+ free(info.genre.str);
+
+ posix_fadvise(fd, 0, 0, POSIX_FADV_DONTNEED);
+ close(fd);
+
+ return r;
+}
+
+static int
+_setup(struct plugin *plugin, struct lms_context *ctxt)
+{
+ plugin->audio_db = lms_db_audio_new(ctxt->db);
+ if (!plugin->audio_db)
+ return -1;
+ plugin->video_db = lms_db_video_new(ctxt->db);
+ if (!plugin->video_db)
+ return -1;
+ plugin->cs_conv = lms_charset_conv_new();
+ if (!plugin->cs_conv)
+ return -1;
+ lms_charset_conv_add(plugin->cs_conv, "UTF-16LE");
+
+ return 0;
+}
+
+static int
+_start(struct plugin *plugin, struct lms_context *ctxt)
+{
+ int r;
+ r = lms_db_audio_start(plugin->audio_db);
+ r |= lms_db_video_start(plugin->video_db);
+ return r;
+}
+
+static int
+_finish(struct plugin *plugin, struct lms_context *ctxt)
+{
+ if (plugin->audio_db)
+ lms_db_audio_free(plugin->audio_db);
+ if (plugin->video_db)
+ lms_db_video_free(plugin->video_db);
+ if (plugin->cs_conv)
+ lms_charset_conv_free(plugin->cs_conv);
+
+ return 0;
+}
+
+static int
+_close(struct plugin *plugin)
+{
+ free(plugin);
+ return 0;
+}
+
+API struct lms_plugin *
+lms_plugin_open(void)
+{
+ struct plugin *plugin;
+
+ plugin = (struct plugin *)malloc(sizeof(*plugin));
+ plugin->plugin.name = _name;
+ plugin->plugin.match = (lms_plugin_match_fn_t)_match;
+ plugin->plugin.parse = (lms_plugin_parse_fn_t)_parse;
+ plugin->plugin.close = (lms_plugin_close_fn_t)_close;
+ plugin->plugin.setup = (lms_plugin_setup_fn_t)_setup;
+ plugin->plugin.start = (lms_plugin_start_fn_t)_start;
+ plugin->plugin.finish = (lms_plugin_finish_fn_t)_finish;
+
+ return (struct lms_plugin *)plugin;
+}
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