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sfdec: add taglist support

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Map the metadata strings and a bunch of info-fields to GStreamer tags.
This commit is contained in:
Stefan Sauer 2013-12-18 08:12:07 +01:00
parent b884eac02c
commit bf956c487f
1 changed files with 111 additions and 1 deletions
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112
ext/sndfile/gstsfdec.c
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@ -21,10 +21,11 @@
# include "config.h"
#endif
#include <stdlib.h>
#include <gst/gst-i18n-plugin.h>
#include <gst/audio/audio.h>
#include "gstsfdec.h"
#include <gst/audio/audio.h>
enum
{
@ -355,11 +356,15 @@ static gboolean
gst_sf_dec_open_file (GstSFDec * self)
{
SF_INFO info = { 0, };
SF_LOOP_INFO loop_info = { 0, };
GstCaps *caps;
GstStructure *s;
GstSegment seg;
GstTagList *tags;
gint width;
const gchar *format;
const gchar *tag;
const gchar *codec_name;
gchar *stream_id;
GST_DEBUG_OBJECT (self, "opening the stream");
@ -413,10 +418,115 @@ gst_sf_dec_open_file (GstSFDec * self)
gst_pad_set_caps (self->srcpad, caps);
gst_caps_unref (caps);
/* push initial segment */
gst_segment_init (&seg, GST_FORMAT_TIME);
seg.stop = gst_util_uint64_scale_int (self->duration, GST_SECOND, self->rate);
gst_pad_push_event (self->srcpad, gst_event_new_segment (&seg));
/* get extra details */
if (sf_command (self->file, SFC_GET_LOOP_INFO, &loop_info,
sizeof (loop_info))) {
GST_DEBUG_OBJECT (self, "have loop info");
}
/* send tags */
tags = gst_tag_list_new_empty ();
if ((tag = sf_get_string (self->file, SF_STR_TITLE))) {
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_TITLE, tag, NULL);
}
if ((tag = sf_get_string (self->file, SF_STR_COMMENT))) {
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_COMMENT, tag, NULL);
}
if ((tag = sf_get_string (self->file, SF_STR_ARTIST))) {
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_ARTIST, tag, NULL);
}
if ((tag = sf_get_string (self->file, SF_STR_ALBUM))) {
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_ALBUM, tag, NULL);
}
if ((tag = sf_get_string (self->file, SF_STR_GENRE))) {
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_GENRE, tag, NULL);
}
if ((tag = sf_get_string (self->file, SF_STR_COPYRIGHT))) {
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_COPYRIGHT, tag, NULL);
}
if ((tag = sf_get_string (self->file, SF_STR_LICENSE))) {
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_LICENSE, tag, NULL);
}
if ((tag = sf_get_string (self->file, SF_STR_SOFTWARE))) {
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_APPLICATION_NAME, tag,
NULL);
}
if ((tag = sf_get_string (self->file, SF_STR_TRACKNUMBER))) {
guint track = atoi (tag);
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_TRACK_NUMBER, track,
NULL);
}
if (loop_info.bpm != 0.0) {
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_BEATS_PER_MINUTE,
(gdouble) loop_info.bpm, NULL);
}
/* TODO: SF_STR_DATE: GST_TAG_DATE / GST_TAG_DATE_TIME */
/* TODO: calculate bitrate: GST_TAG_BITRATE */
switch (info.format & SF_FORMAT_SUBMASK) {
case SF_FORMAT_PCM_S8:
case SF_FORMAT_PCM_16:
case SF_FORMAT_PCM_24:
case SF_FORMAT_PCM_32:
case SF_FORMAT_PCM_U8:
codec_name = "Uncompressed PCM audio";
break;
case SF_FORMAT_FLOAT:
case SF_FORMAT_DOUBLE:
codec_name = "Uncompressed IEEE float audio";
break;
case SF_FORMAT_ULAW:
codec_name = "µ-law audio";
break;
case SF_FORMAT_ALAW:
codec_name = "A-law audio";
break;
case SF_FORMAT_IMA_ADPCM:
case SF_FORMAT_MS_ADPCM:
case SF_FORMAT_VOX_ADPCM:
case SF_FORMAT_G721_32:
case SF_FORMAT_G723_24:
case SF_FORMAT_G723_40:
codec_name = "ADPCM audio";
break;
case SF_FORMAT_GSM610:
codec_name = "MS GSM audio";
break;
case SF_FORMAT_DWVW_12:
case SF_FORMAT_DWVW_16:
case SF_FORMAT_DWVW_24:
case SF_FORMAT_DWVW_N:
codec_name = "Delta Width Variable Word encoded audio";
break;
case SF_FORMAT_DPCM_8:
case SF_FORMAT_DPCM_16:
codec_name = "differential PCM audio";
break;
case SF_FORMAT_VORBIS:
codec_name = "Vorbis";
break;
default:
codec_name = NULL;
GST_WARNING_OBJECT (self, "unmapped codec_type: %d",
info.format & SF_FORMAT_SUBMASK);
break;
}
if (codec_name) {
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_AUDIO_CODEC,
codec_name, NULL);
}
if (!gst_tag_list_is_empty (tags)) {
GST_DEBUG_OBJECT (self, "have tags");
gst_pad_push_event (self->srcpad, gst_event_new_tag (tags));
} else {
gst_tag_list_unref (tags);
}
return TRUE;
open_failed: