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id3tag: Use gst_tag_list_peek_string_index

Browse source 
Replace _get_string_index with _peek_string_index to avoid
a string copy
This commit is contained in:
Thiago Santos 2010-06-18 14:37:05 -03:00
parent 33e78b12b4
commit 34836d6ea4
1 changed files with 24 additions and 32 deletions
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56
gst/id3tag/id3tag.c
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@ -156,7 +156,7 @@ static void id3v2_frame_finish (GstId3v2Tag * tag, GstId3v2Frame * frame);
static guint id3v2_frame_get_size (GstId3v2Tag * tag, GstId3v2Frame * frame);
static void id3v2_tag_add_text_frame (GstId3v2Tag * tag,
const gchar * frame_id, gchar ** strings, int num_strings);
const gchar * frame_id, const gchar ** strings, int num_strings);
static gboolean
id3v2_tag_init (GstId3v2Tag * tag, guint major_version)
@ -391,7 +391,7 @@ id3v2_frame_write_string (GstId3v2Frame * frame, int encoding,
static void
id3v2_tag_add_text_frame (GstId3v2Tag * tag, const gchar * frame_id,
gchar ** strings_utf8, int num_strings)
const gchar ** strings_utf8, int num_strings)
{
GstId3v2Frame frame;
guint len, i;
@ -440,14 +440,14 @@ static void
add_text_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
const gchar * tag, guint num_tags, const gchar * frame_id)
{
gchar **strings;
const gchar **strings;
guint n, i;
GST_LOG ("Adding '%s' frame", frame_id);
strings = g_new0 (gchar *, num_tags + 1);
strings = g_new0 (const gchar *, num_tags + 1);
for (n = 0, i = 0; n < num_tags; ++n) {
if (gst_tag_list_get_string_index (list, tag, n, &strings[i]) &&
if (gst_tag_list_peek_string_index (list, tag, n, &strings[i]) &&
strings[i] != NULL) {
GST_LOG ("%s: %s[%u] = '%s'", frame_id, tag, i, strings[i]);
++i;
@ -460,7 +460,7 @@ add_text_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
GST_WARNING ("Empty list for tag %s, skipping", tag);
}
g_strfreev (strings);
g_free (strings);
}
static void
@ -567,7 +567,8 @@ add_count_or_num_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
GST_DEBUG ("Setting %s to %s (frame_id = %s)", tag, tag_str, frame_id);
id3v2_tag_add_text_frame (id3v2tag, frame_id, &tag_str, 1);
id3v2_tag_add_text_frame (id3v2tag, frame_id, (const gchar **) &tag_str,
1);
g_free (tag_str);
}
} else if (corr[idx].corr_count == NULL) {
@ -580,7 +581,8 @@ add_count_or_num_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
gchar *tag_str = g_strdup_printf ("0/%u", count);
GST_DEBUG ("Setting %s to %s (frame_id = %s)", tag, tag_str, frame_id);
id3v2_tag_add_text_frame (id3v2tag, frame_id, &tag_str, 1);
id3v2_tag_add_text_frame (id3v2tag, frame_id, (const gchar **) &tag_str,
1);
g_free (tag_str);
}
}
@ -598,9 +600,9 @@ add_comment_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
GST_LOG ("Adding comment frames");
for (n = 0; n < num_tags; ++n) {
gchar *s = NULL;
const gchar *s = NULL;
if (gst_tag_list_get_string_index (list, tag, n, &s) && s != NULL) {
if (gst_tag_list_peek_string_index (list, tag, n, &s) && s != NULL) {
gchar *desc = NULL, *val = NULL, *lang = NULL;
int desclen, vallen, encoding1, encoding2, encoding;
GstId3v2Frame frame;
@ -643,7 +645,6 @@ add_comment_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
g_array_append_val (id3v2tag->frames, frame);
}
g_free (s);
}
}
@ -744,9 +745,9 @@ add_musicbrainz_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
g_assert (idx < G_N_ELEMENTS (mb_ids));
for (i = 0; i < num_tags; ++i) {
gchar *id_str;
const gchar *id_str;
if (gst_tag_list_get_string_index (list, tag, 0, &id_str) && id_str) {
if (gst_tag_list_peek_string_index (list, tag, 0, &id_str) && id_str) {
/* add two frames, one with the ID the musicbrainz.org spec mentions
* and one with the ID that applications use in the real world */
GstId3v2Frame frame1, frame2;
@ -767,8 +768,6 @@ add_musicbrainz_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
mb_ids[idx].realworld_id, TRUE);
id3v2_frame_write_string (&frame2, encoding, id_str, FALSE);
g_array_append_val (id3v2tag->frames, frame2);
g_free (id_str);
}
}
}
@ -778,9 +777,9 @@ add_unique_file_id_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
const gchar * tag, guint num_tags, const gchar * unused)
{
const gchar *origin = "http://musicbrainz.org";
gchar *id_str = NULL;
const gchar *id_str = NULL;
if (gst_tag_list_get_string_index (list, tag, 0, &id_str) && id_str) {
if (gst_tag_list_peek_string_index (list, tag, 0, &id_str) && id_str) {
GstId3v2Frame frame;
GST_LOG ("Adding %s (%s): %s", tag, origin, id_str);
@ -791,8 +790,6 @@ add_unique_file_id_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
id3v2_frame_write_bytes (&frame, (const guint8 *) id_str,
strlen (id_str) + 1);
g_array_append_val (id3v2tag->frames, frame);
g_free (id_str);
}
}
@ -835,7 +832,7 @@ add_date_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
}
if (strings[0] != NULL) {
id3v2_tag_add_text_frame (id3v2tag, frame_id, strings, i);
id3v2_tag_add_text_frame (id3v2tag, frame_id, (const gchar **) strings, i);
} else {
GST_WARNING ("Empty list for tag %s, skipping", tag);
}
@ -857,9 +854,9 @@ add_encoder_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
strings = g_new0 (gchar *, num_tags + 1);
for (n = 0; n < num_tags; ++n) {
gchar *encoder = NULL;
const gchar *encoder = NULL;
if (gst_tag_list_get_string_index (list, tag, n, &encoder) && encoder) {
if (gst_tag_list_peek_string_index (list, tag, n, &encoder) && encoder) {
guint encoder_version;
gchar *s;
@ -873,12 +870,11 @@ add_encoder_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
GST_LOG ("encoder[%u] = '%s'", n, s);
strings[i] = s;
i++;
g_free (encoder);
}
}
if (strings[0] != NULL) {
id3v2_tag_add_text_frame (id3v2tag, "TSSE", strings, i);
id3v2_tag_add_text_frame (id3v2tag, "TSSE", (const gchar **) strings, i);
} else {
GST_WARNING ("Empty list for tag %s, skipping", tag);
}
@ -890,12 +886,12 @@ static void
add_uri_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
const gchar * tag, guint num_tags, const gchar * frame_id)
{
gchar *url = NULL;
const gchar *url = NULL;
g_assert (frame_id != NULL);
/* URI tags are limited to one of each per taglist */
if (gst_tag_list_get_string_index (list, tag, 0, &url) && url != NULL) {
if (gst_tag_list_peek_string_index (list, tag, 0, &url) && url != NULL) {
guint url_len;
url_len = strlen (url);
@ -908,8 +904,6 @@ add_uri_tag (GstId3v2Tag * id3v2tag, const GstTagList * list,
} else {
GST_WARNING ("Tag %s does not contain a valid URI (%s)", tag, url);
}
g_free (url);
}
}
@ -1195,12 +1189,12 @@ static void
genre_v1_convert (const GstTagList * list, const gchar * tag,
guint8 * dst, int maxlen, gboolean * wrote_tag)
{
gchar *str;
const gchar *str;
int genreidx = -1;
guint i, max;
/* We only support one genre */
if (!gst_tag_list_get_string_index (list, tag, 0, &str) || str == NULL)
if (!gst_tag_list_peek_string_index (list, tag, 0, &str) || str == NULL)
return;
max = gst_tag_id3_genre_count ();
@ -1217,8 +1211,6 @@ genre_v1_convert (const GstTagList * list, const gchar * tag,
*dst = (guint8) genreidx;
*wrote_tag = TRUE;
}
g_free (str);
}
static void