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flacenc: Add support for writing METADATA_BLOCK_PICTURE blocks for GST_TAG_IMAGE and GST_TAG_PREVIEW_IMAGE

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This commit is contained in:
Sebastian Dröge 2011-04-01 13:18:55 +02:00
parent ce66aea7b0
commit 6fd1546bce
1 changed files with 54 additions and 5 deletions
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59
ext/flac/gstflacenc.c
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@ -473,6 +473,7 @@ gst_flac_enc_set_metadata (GstFlacEnc * flacenc, guint64 total_samples)
const GstTagList *user_tags;
GstTagList *copy;
gint entries = 1;
gint n_images, n_preview_images;
g_return_if_fail (flacenc != NULL);
user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (flacenc));
@ -481,33 +482,81 @@ gst_flac_enc_set_metadata (GstFlacEnc * flacenc, guint64 total_samples)
}
copy = gst_tag_list_merge (user_tags, flacenc->tags,
gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (flacenc)));
flacenc->meta = g_new0 (FLAC__StreamMetadata *, 3);
n_images = gst_tag_list_get_tag_size (copy, GST_TAG_IMAGE);
n_preview_images = gst_tag_list_get_tag_size (copy, GST_TAG_PREVIEW_IMAGE);
flacenc->meta =
g_new0 (FLAC__StreamMetadata *, 3 + n_images + n_preview_images);
flacenc->meta[0] =
FLAC__metadata_object_new (FLAC__METADATA_TYPE_VORBIS_COMMENT);
gst_tag_list_foreach (copy, add_one_tag, flacenc);
if (n_images + n_preview_images > 0) {
GstBuffer *buffer;
GstCaps *caps;
GstStructure *structure;
GstTagImageType image_type = GST_TAG_IMAGE_TYPE_NONE;
gint i;
for (i = 0; i < n_images + n_preview_images; i++) {
if (i < n_images) {
if (!gst_tag_list_get_buffer_index (copy, GST_TAG_IMAGE, i, &buffer))
continue;
} else {
if (!gst_tag_list_get_buffer_index (copy, GST_TAG_PREVIEW_IMAGE,
i - n_images, &buffer))
continue;
}
flacenc->meta[entries] =
FLAC__metadata_object_new (FLAC__METADATA_TYPE_PICTURE);
caps = gst_buffer_get_caps (buffer);
structure = gst_caps_get_structure (caps, 0);
gst_structure_get (structure, "image-type", GST_TYPE_TAG_IMAGE_TYPE,
&image_type, NULL);
/* Convert to ID3v2 APIC image type */
if (image_type == GST_TAG_IMAGE_TYPE_NONE)
image_type = (i < n_images) ? 0x00 : 0x01;
else
image_type = image_type + 2;
FLAC__metadata_object_picture_set_data (flacenc->meta[entries],
GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer), TRUE);
/* FIXME: There's no way to set the picture type in libFLAC */
flacenc->meta[entries]->data.picture.type = image_type;
FLAC__metadata_object_picture_set_mime_type (flacenc->meta[entries],
(char *) gst_structure_get_name (structure), TRUE);
gst_caps_unref (caps);
gst_buffer_unref (buffer);
entries++;
}
}
if (flacenc->seekpoints && total_samples != GST_CLOCK_TIME_NONE) {
gboolean res;
guint samples;
flacenc->meta[1] =
flacenc->meta[entries] =
FLAC__metadata_object_new (FLAC__METADATA_TYPE_SEEKTABLE);
if (flacenc->seekpoints > 0) {
res =
FLAC__metadata_object_seektable_template_append_spaced_points
(flacenc->meta[1], flacenc->seekpoints, total_samples);
(flacenc->meta[entries], flacenc->seekpoints, total_samples);
} else {
samples = -flacenc->seekpoints * flacenc->sample_rate;
res =
FLAC__metadata_object_seektable_template_append_spaced_points_by_samples
(flacenc->meta[1], samples, total_samples);
(flacenc->meta[entries], samples, total_samples);
}
if (!res) {
GST_DEBUG_OBJECT (flacenc, "adding seekpoint template %d failed",
flacenc->seekpoints);
FLAC__metadata_object_delete (flacenc->meta[1]);
flacenc->meta[1] = NULL;
flacenc->meta[entries] = NULL;
} else {
entries++;
}