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mpeg4videoparse: also set short configuration data in codec_data

Browse source 
That is, header configuration may start at Video Object (startcode),
rather than at Visual Object Sequence, which is catered for and parsed,
so let's also take it as codec_data if no more available.

Fixes (remainder of) #572551.
This commit is contained in:
Mark Nauwelaerts 2010-04-20 15:37:03 +02:00
parent c4aaab2d59
commit 00148e3736
1 changed files with 25 additions and 9 deletions
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34
gst/mpeg4videoparse/mpeg4videoparse.c
View file

@ -210,10 +210,26 @@ static gint aspect_ratio_table[6][2] = { {-1, -1}, {1, 1}, {12, 11},
{10, 11}, {16, 11}, {40, 33}
};
static void
gst_mpeg4vparse_set_config (GstMpeg4VParse * parse, const guint8 * data,
gsize size)
{
/* limit possible caps noise */
if (parse->config && size == GST_BUFFER_SIZE (parse->config) &&
memcmp (GST_BUFFER_DATA (parse->config), data, size) == 0)
return;
if (parse->config != NULL)
gst_buffer_unref (parse->config);
parse->config = gst_buffer_new_and_alloc (size);
memcpy (GST_BUFFER_DATA (parse->config), data, size);
}
/* Handle parsing a video object */
static gboolean
gst_mpeg4vparse_handle_vo (GstMpeg4VParse * parse, const guint8 * data,
gsize size)
gsize size, gboolean set_codec_data)
{
guint32 bits;
bitstream_t bs = { data, 0, 0, size };
@ -222,6 +238,9 @@ gst_mpeg4vparse_handle_vo (GstMpeg4VParse * parse, const guint8 * data,
gint aspect_ratio_width = -1, aspect_ratio_height = -1;
gint height = -1, width = -1;
if (set_codec_data)
gst_mpeg4vparse_set_config (parse, data, size);
/* expecting a video object startcode */
GET_BITS (&bs, 32, &bits);
if (bits > 0x11F)
@ -384,11 +403,7 @@ gst_mpeg4vparse_handle_vos (GstMpeg4VParse * parse, const guint8 * data,
/* Even if we fail to parse, then some other element might succeed, so always
* put the VOS in the config */
parse->profile = profile;
if (parse->config != NULL)
gst_buffer_unref (parse->config);
parse->config = gst_buffer_new_and_alloc (size);
memcpy (GST_BUFFER_DATA (parse->config), data, size);
gst_mpeg4vparse_set_config (parse, data, size);
parse->have_config = TRUE;
@ -440,7 +455,7 @@ gst_mpeg4vparse_handle_vos (GstMpeg4VParse * parse, const guint8 * data,
data = &bs.data[bs.offset];
size -= bs.offset;
return gst_mpeg4vparse_handle_vo (parse, data, size);
return gst_mpeg4vparse_handle_vo (parse, data, size, FALSE);
out:
return gst_mpeg4vparse_set_new_caps (parse, 0, 0, -1, -1, -1, -1);
@ -577,7 +592,7 @@ gst_mpeg4vparse_drain (GstMpeg4VParse * parse, GstBuffer * last_buffer)
/* end of VOS found, interpret the config data and restart the
* search for the VOP */
gst_mpeg4vparse_handle_vo (parse, data + parse->vos_offset,
parse->offset - parse->vos_offset);
parse->offset - parse->vos_offset, TRUE);
parse->state = PARSE_START_FOUND;
break;
default:
@ -685,7 +700,8 @@ gst_mpeg4vparse_sink_setcaps (GstPad * pad, GstCaps * caps)
/* Sometimes, instead, it'll just have the video object/video object
layer data. We can parse that too, though it'll give us slightly
less information. */
res = gst_mpeg4vparse_handle_vo (parse, data, GST_BUFFER_SIZE (buf));
res = gst_mpeg4vparse_handle_vo (parse, data, GST_BUFFER_SIZE (buf),
FALSE);
}
} else {
GST_WARNING_OBJECT (parse,