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flacparse: generate empty vorbiscomment for complete streamheaders if needed

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Fixes https://bugzilla.gnome.org/show_bug.cgi?id=681335
This commit is contained in:
Mark Nauwelaerts 2012-08-07 12:12:09 +02:00
parent 2e21ace12c
commit 2d179ebf90
1 changed files with 62 additions and 41 deletions
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103
gst/audioparsers/gstflacparse.c
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@ -184,6 +184,9 @@ static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_STATIC_CAPS ("audio/x-flac")
);
static GstBuffer *gst_flac_parse_generate_vorbiscomment (GstFlacParse *
flacparse);
static void gst_flac_parse_finalize (GObject * object);
static void gst_flac_parse_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
@ -1251,6 +1254,16 @@ gst_flac_parse_handle_headers (GstFlacParse * flacparse)
gst_buffer_unmap (header, &map);
}
/* at least this one we can generate easily
* to provide full headers downstream */
if (vorbiscomment == NULL && streaminfo != NULL) {
GST_DEBUG_OBJECT (flacparse,
"missing vorbiscomment header; generating dummy");
vorbiscomment = gst_flac_parse_generate_vorbiscomment (flacparse);
flacparse->headers = g_list_insert (flacparse->headers, vorbiscomment,
g_list_index (flacparse->headers, streaminfo) + 1);
}
if (marker == NULL || streaminfo == NULL || vorbiscomment == NULL) {
GST_WARNING_OBJECT (flacparse,
"missing header %p %p %p, muxing into container "
@ -1339,10 +1352,56 @@ push_headers:
return res;
}
/* empty vorbiscomment */
static GstBuffer *
gst_flac_parse_generate_vorbiscomment (GstFlacParse * flacparse)
{
GstTagList *taglist = gst_tag_list_new_empty ();
guchar header[4];
guint size;
GstBuffer *vorbiscomment;
GstMapInfo map;
header[0] = 0x84; /* is_last = 1; type = 4; */
vorbiscomment =
gst_tag_list_to_vorbiscomment_buffer (taglist, header,
sizeof (header), NULL);
gst_tag_list_unref (taglist);
gst_buffer_map (vorbiscomment, &map, GST_MAP_WRITE);
/* Get rid of framing bit */
if (map.data[map.size - 1] == 1) {
GstBuffer *sub;
sub =
gst_buffer_copy_region (vorbiscomment, GST_BUFFER_COPY_ALL, 0,
map.size - 1);
gst_buffer_unmap (vorbiscomment, &map);
gst_buffer_unref (vorbiscomment);
vorbiscomment = sub;
gst_buffer_map (vorbiscomment, &map, GST_MAP_WRITE);
}
size = map.size - 4;
map.data[1] = ((size & 0xFF0000) >> 16);
map.data[2] = ((size & 0x00FF00) >> 8);
map.data[3] = (size & 0x0000FF);
gst_buffer_unmap (vorbiscomment, &map);
GST_BUFFER_TIMESTAMP (vorbiscomment) = GST_CLOCK_TIME_NONE;
GST_BUFFER_DURATION (vorbiscomment) = GST_CLOCK_TIME_NONE;
GST_BUFFER_OFFSET (vorbiscomment) = 0;
GST_BUFFER_OFFSET_END (vorbiscomment) = 0;
return vorbiscomment;
}
static gboolean
gst_flac_parse_generate_headers (GstFlacParse * flacparse)
{
GstBuffer *marker, *streaminfo, *vorbiscomment;
GstBuffer *marker, *streaminfo;
GstMapInfo map;
marker = gst_buffer_new_and_alloc (4);
@ -1411,46 +1470,8 @@ gst_flac_parse_generate_headers (GstFlacParse * flacparse)
GST_BUFFER_OFFSET_END (streaminfo) = 0;
flacparse->headers = g_list_append (flacparse->headers, streaminfo);
/* empty vorbiscomment */
{
GstTagList *taglist = gst_tag_list_new_empty ();
guchar header[4];
guint size;
header[0] = 0x84; /* is_last = 1; type = 4; */
vorbiscomment =
gst_tag_list_to_vorbiscomment_buffer (taglist, header,
sizeof (header), NULL);
gst_tag_list_unref (taglist);
gst_buffer_map (vorbiscomment, &map, GST_MAP_WRITE);
/* Get rid of framing bit */
if (map.data[map.size - 1] == 1) {
GstBuffer *sub;
sub =
gst_buffer_copy_region (vorbiscomment, GST_BUFFER_COPY_ALL, 0,
map.size - 1);
gst_buffer_unmap (vorbiscomment, &map);
gst_buffer_unref (vorbiscomment);
vorbiscomment = sub;
gst_buffer_map (vorbiscomment, &map, GST_MAP_WRITE);
}
size = map.size - 4;
map.data[1] = ((size & 0xFF0000) >> 16);
map.data[2] = ((size & 0x00FF00) >> 8);
map.data[3] = (size & 0x0000FF);
gst_buffer_unmap (vorbiscomment, &map);
GST_BUFFER_TIMESTAMP (vorbiscomment) = GST_CLOCK_TIME_NONE;
GST_BUFFER_DURATION (vorbiscomment) = GST_CLOCK_TIME_NONE;
GST_BUFFER_OFFSET (vorbiscomment) = 0;
GST_BUFFER_OFFSET_END (vorbiscomment) = 0;
flacparse->headers = g_list_append (flacparse->headers, vorbiscomment);
}
flacparse->headers = g_list_append (flacparse->headers,
gst_flac_parse_generate_vorbiscomment (flacparse));
return TRUE;
}