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gst-libs/gst/riff/riff-read.c: On second thought, just skip JUNK chunks automatically, so the caller doesn't have to ...

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Original commit message from CVS:
* gst-libs/gst/riff/riff-read.c: (gst_riff_read_chunk):
On second thought, just skip JUNK chunks automatically, so
the caller doesn't have to handle this. Fixes #342345.
Also, return GST_FLOW_UNEXPECTED if we get a short read,
not GST_FLOW_ERROR.
This commit is contained in:
Tim-Philipp Müller 2006-05-19 15:00:43 +00:00
parent 3ef484fe2b
commit 25d29c4f09
2 changed files with 29 additions and 14 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2006-05-19 Tim-Philipp Müller <tim at centricular dot net>
* gst-libs/gst/riff/riff-read.c: (gst_riff_read_chunk):
On second thought, just skip JUNK chunks automatically, so
the caller doesn't have to handle this. Fixes #342345.
Also, return GST_FLOW_UNEXPECTED if we get a short read,
not GST_FLOW_ERROR.
2006-05-19 Tim-Philipp Müller <tim at centricular dot net>
* gst-libs/gst/riff/riff-read.c: (gst_riff_read_chunk):

35
gst-libs/gst/riff/riff-read.c
View file

@ -39,7 +39,8 @@ GST_DEBUG_CATEGORY_EXTERN (riff_debug);
* @tag: fourcc of the chunk (returned by this function).
* @chunk_data: buffer (returned by this function).
*
* Reads a single chunk of data.
* Reads a single chunk of data. Since 0.10.8 'JUNK' chunks
* are skipped automatically.
*
* Returns: flow status.
*/
@ -54,6 +55,8 @@ gst_riff_read_chunk (GstElement * element,
guint64 offset = *_offset;
gchar dbg[5] = { 0, };
skip_junk:
if ((res = gst_pad_pull_range (pad, offset, 8, &buf)) != GST_FLOW_OK)
return res;
else if (!buf || GST_BUFFER_SIZE (buf) < 8) {
@ -69,18 +72,22 @@ gst_riff_read_chunk (GstElement * element,
memcpy (dbg, tag, 4);
GST_DEBUG_OBJECT (element, "tag=%s, size=%u", dbg, size);
if (*tag == GST_RIFF_TAG_JUNK && size == 0) {
buf = gst_buffer_new ();
} else {
if ((res = gst_pad_pull_range (pad, offset + 8, size, &buf)) != GST_FLOW_OK)
return res;
if (!buf || GST_BUFFER_SIZE (buf) < size) {
GST_DEBUG_OBJECT (element, "not enough data (available=%u, needed=%u)",
(buf) ? GST_BUFFER_SIZE (buf) : 0, size);
if (buf)
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
/* skip 'JUNK' chunks */
if (*tag == GST_RIFF_TAG_JUNK) {
*_offset += 8 + GST_ROUND_UP_2 (size);
offset += 8 + GST_ROUND_UP_2 (size);
GST_DEBUG_OBJECT (element, "skipping JUNK chunk");
goto skip_junk;
}
if ((res = gst_pad_pull_range (pad, offset + 8, size, &buf)) != GST_FLOW_OK)
return res;
else if (!buf || GST_BUFFER_SIZE (buf) < size) {
GST_DEBUG_OBJECT (element, "not enough data (available=%u, needed=%u)",
(buf) ? GST_BUFFER_SIZE (buf) : 0, size);
if (buf)
gst_buffer_unref (buf);
return GST_FLOW_UNEXPECTED;
}
*_chunk_data = buf;
@ -101,7 +108,7 @@ gst_riff_read_chunk (GstElement * element,
*
* Reads a single chunk.
*
* Returns: the fourcc tag of this chunk, or 0 on error.
* Returns: the fourcc tag of this chunk, or FALSE on error
*/
gboolean