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qtdemux: Implement CONVERT and FORMATS query

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Fixes bug #636784.
This commit is contained in:
Kishore Arepalli 2010-12-11 17:46:17 +01:00 committed by Sebastian Dröge
parent d73440cb97
commit 5d9c8996da
1 changed files with 101 additions and 26 deletions
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127
gst/qtdemux/qtdemux.c
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@ -387,6 +387,13 @@ GST_BOILERPLATE (GstQTDemux, gst_qtdemux, GstQTDemux, GST_TYPE_ELEMENT);
static void gst_qtdemux_dispose (GObject * object);
static guint32
gst_qtdemux_find_index_linear (GstQTDemux * qtdemux, QtDemuxStream * str,
guint64 media_time);
static guint32
gst_qtdemux_find_index_for_given_media_offset_linear (GstQTDemux * qtdemux,
QtDemuxStream * str, gint64 media_offset);
static void gst_qtdemux_set_index (GstElement * element, GstIndex * index);
static GstIndex *gst_qtdemux_get_index (GstElement * element);
static GstStateChangeReturn gst_qtdemux_change_state (GstElement * element,
@ -561,47 +568,57 @@ gst_qtdemux_pull_atom (GstQTDemux * qtdemux, guint64 offset, guint64 size,
return flow;
}
#if 0
#if 1
static gboolean
gst_qtdemux_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
GstFormat dest_format, gint64 * dest_value)
{
gboolean res = TRUE;
QtDemuxStream *stream = gst_pad_get_element_private (pad);
GstQTDemux *qtdemux = GST_QTDEMUX (gst_pad_get_parent (pad));
gint32 index;
if (stream->subtype == GST_MAKE_FOURCC ('v', 'i', 'd', 'e') &&
(src_format == GST_FORMAT_BYTES || *dest_format == GST_FORMAT_BYTES))
if (stream->subtype != FOURCC_vide)
return FALSE;
switch (src_format) {
case GST_FORMAT_TIME:
switch (*dest_format) {
case GST_FORMAT_BYTES:
*dest_value = src_value * 1; /* FIXME */
break;
case GST_FORMAT_DEFAULT:
*dest_value = src_value * 1; /* FIXME */
switch (dest_format) {
case GST_FORMAT_BYTES:{
index = gst_qtdemux_find_index_linear (qtdemux, stream, src_value);
if (-1 == index)
return FALSE;
*dest_value = stream->samples[index].offset;
GST_DEBUG_OBJECT (qtdemux, "Format Conversion Time->Offset :%"
GST_TIME_FORMAT "->%" G_GUINT64_FORMAT,
GST_TIME_ARGS (src_value), *dest_value);
break;
}
default:
res = FALSE;
break;
}
break;
case GST_FORMAT_BYTES:
switch (*dest_format) {
case GST_FORMAT_TIME:
*dest_value = src_value * 1; /* FIXME */
break;
default:
res = FALSE;
break;
}
break;
case GST_FORMAT_DEFAULT:
switch (*dest_format) {
case GST_FORMAT_TIME:
*dest_value = src_value * 1; /* FIXME */
switch (dest_format) {
case GST_FORMAT_TIME:{
index =
gst_qtdemux_find_index_for_given_media_offset_linear (qtdemux,
stream, src_value);
if (-1 == index)
return FALSE;
*dest_value =
gst_util_uint64_scale (stream->samples[index].timestamp,
GST_SECOND, stream->timescale);
GST_DEBUG_OBJECT (qtdemux, "Format Conversion Offset->Time :%"
G_GUINT64_FORMAT "->%" GST_TIME_FORMAT,
src_value, GST_TIME_ARGS (*dest_value));
break;
}
default:
res = FALSE;
break;
@ -621,6 +638,8 @@ gst_qtdemux_get_src_query_types (GstPad * pad)
static const GstQueryType src_types[] = {
GST_QUERY_POSITION,
GST_QUERY_DURATION,
GST_QUERY_CONVERT,
GST_QUERY_FORMATS,
GST_QUERY_SEEKING,
0
};
@ -675,6 +694,24 @@ gst_qtdemux_handle_src_query (GstPad * pad, GstQuery * query)
}
break;
}
case GST_QUERY_CONVERT:{
GstFormat src_fmt, dest_fmt;
gint64 src_value, dest_value;
gst_query_parse_convert (query, &src_fmt, &src_value, &dest_fmt, NULL);
res = gst_qtdemux_src_convert (pad,
src_fmt, src_value, dest_fmt, &dest_value);
if (res) {
gst_query_set_convert (query, src_fmt, src_value, dest_fmt, dest_value);
res = TRUE;
}
break;
}
case GST_QUERY_FORMATS:
gst_query_set_formats (query, 2, GST_FORMAT_TIME, GST_FORMAT_BYTES);
res = TRUE;
break;
case GST_QUERY_SEEKING:{
GstFormat fmt;
gboolean seekable;
@ -825,6 +862,44 @@ gst_qtdemux_find_index (GstQTDemux * qtdemux, QtDemuxStream * str,
return index;
}
/* find the index of the sample that includes the data for @media_offset using a
* linear search
*
* Returns the index of the sample.
*/
static guint32
gst_qtdemux_find_index_for_given_media_offset_linear (GstQTDemux * qtdemux,
QtDemuxStream * str, gint64 media_offset)
{
QtDemuxSample *result = str->samples;
guint32 index = 0;
if (media_offset == result->offset)
return index;
result++;
while (index < str->n_samples - 1) {
if (!qtdemux_parse_samples (qtdemux, str, index + 1))
goto parse_failed;
if (media_offset < result->offset)
break;
index++;
result++;
}
return index;
/* ERRORS */
parse_failed:
{
GST_LOG_OBJECT (qtdemux, "Parsing of index %u failed!", index + 1);
return -1;
}
}
/* find the index of the sample that includes the data for @media_time using a
* linear search, and keeping in mind that not all samples may have been parsed
* yet. If possible, it will delegate to binary search.
@ -5123,7 +5198,7 @@ qtdemux_stbl_init (GstQTDemux * qtdemux, QtDemuxStream * stream, GNode * stbl)
/* sync sample atom */
stream->stps_present = FALSE;
if ((stream->stss_present =
!!qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stss,
! !qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stss,
&stream->stss) ? TRUE : FALSE) == TRUE) {
/* copy atom data into a new buffer for later use */
stream->stss.data = g_memdup (stream->stss.data, stream->stss.size);
@ -5141,7 +5216,7 @@ qtdemux_stbl_init (GstQTDemux * qtdemux, QtDemuxStream * stream, GNode * stbl)
/* partial sync sample atom */
if ((stream->stps_present =
!!qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stps,
! !qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stps,
&stream->stps) ? TRUE : FALSE) == TRUE) {
/* copy atom data into a new buffer for later use */
stream->stps.data = g_memdup (stream->stps.data, stream->stps.size);
@ -5261,7 +5336,7 @@ qtdemux_stbl_init (GstQTDemux * qtdemux, QtDemuxStream * stream, GNode * stbl)
/* composition time-to-sample */
if ((stream->ctts_present =
!!qtdemux_tree_get_child_by_type_full (stbl, FOURCC_ctts,
! !qtdemux_tree_get_child_by_type_full (stbl, FOURCC_ctts,
&stream->ctts) ? TRUE : FALSE) == TRUE) {
/* copy atom data into a new buffer for later use */
stream->ctts.data = g_memdup (stream->ctts.data, stream->ctts.size);