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gst/avi/gstavidemux.c: Use scaling code for added precission and more correct stop position in case scale==0.

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Original commit message from CVS:
* gst/avi/gstavidemux.c: (gst_avi_demux_src_convert),
(gst_avi_demux_handle_src_query), (gst_avi_demux_handle_src_event),
(gst_avi_demux_parse_file_header), (gst_avi_demux_stream_init),
(gst_avi_demux_parse_avih), (gst_avi_demux_parse_superindex),
(gst_avi_demux_parse_subindex), (gst_avi_demux_parse_stream),
(gst_avi_demux_stream_header), (gst_avi_demux_change_state):
Use scaling code for added precission and more correct stop
position in case scale==0.
This commit is contained in:
Wim Taymans 2006-02-19 16:02:25 +00:00
parent 645eac79e8
commit e9d173ccd5
2 changed files with 230 additions and 134 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
ChangeLog
View file

@ -1,3 +1,14 @@
2006-02-19 Wim Taymans <wim@fluendo.com>
* gst/avi/gstavidemux.c: (gst_avi_demux_src_convert),
(gst_avi_demux_handle_src_query), (gst_avi_demux_handle_src_event),
(gst_avi_demux_parse_file_header), (gst_avi_demux_stream_init),
(gst_avi_demux_parse_avih), (gst_avi_demux_parse_superindex),
(gst_avi_demux_parse_subindex), (gst_avi_demux_parse_stream),
(gst_avi_demux_stream_header), (gst_avi_demux_change_state):
Use scaling code for added precission and more correct stop
position in case scale==0.
2006-02-19 Wim Taymans <wim@fluendo.com>
* gst/flx/gstflxdec.c: (gst_flxdec_src_query_handler),

353
gst/avi/gstavidemux.c
View file

@ -301,11 +301,13 @@ gst_avi_demux_src_convert (GstPad * pad,
case GST_FORMAT_TIME:
switch (*dest_format) {
case GST_FORMAT_BYTES:
*dest_value = src_value * stream->strf.auds->av_bps / GST_SECOND;
*dest_value =
gst_util_uint64_scale_int (src_value, stream->strf.auds->av_bps,
GST_SECOND);
break;
case GST_FORMAT_DEFAULT:
*dest_value = src_value * stream->strh->rate /
(stream->strh->scale * GST_SECOND);
*dest_value = gst_util_uint64_scale (src_value, stream->strh->rate,
stream->strh->scale * GST_SECOND);
break;
default:
res = FALSE;
@ -316,8 +318,8 @@ gst_avi_demux_src_convert (GstPad * pad,
switch (*dest_format) {
case GST_FORMAT_TIME:
if (stream->strf.auds->av_bps != 0) {
*dest_value = ((gfloat) src_value) * GST_SECOND /
stream->strf.auds->av_bps;
*dest_value = gst_util_uint64_scale_int (src_value, GST_SECOND,
stream->strf.auds->av_bps);
} else
res = FALSE;
break;
@ -329,8 +331,9 @@ gst_avi_demux_src_convert (GstPad * pad,
case GST_FORMAT_DEFAULT:
switch (*dest_format) {
case GST_FORMAT_TIME:
*dest_value = ((((gfloat) src_value) * stream->strh->scale) /
stream->strh->rate) * GST_SECOND;
*dest_value =
gst_util_uint64_scale (src_value,
stream->strh->scale * GST_SECOND, stream->strh->rate);
break;
default:
res = FALSE;
@ -377,27 +380,30 @@ gst_avi_demux_handle_src_query (GstPad * pad, GstQuery * query)
if (stream->strh->type == GST_RIFF_FCC_auds) {
if (!stream->strh->samplesize) {
pos = GST_SECOND * stream->current_frame *
stream->strh->scale / stream->strh->rate;
pos = gst_util_uint64_scale_int ((gint64) stream->current_frame *
stream->strh->scale, GST_SECOND, stream->strh->rate);
} else if (stream->strf.auds->av_bps != 0) {
pos = ((gfloat) stream->current_byte) * GST_SECOND /
stream->strf.auds->av_bps;
pos = gst_util_uint64_scale_int (stream->current_byte, GST_SECOND,
stream->strf.auds->av_bps);
} else if (stream->total_frames != 0 && stream->total_bytes != 0) {
/* calculate timestamps based on video size */
guint64 xlen = demux->avih->us_frame *
demux->avih->tot_frames * GST_USECOND;
if (!stream->strh->samplesize)
pos = xlen * stream->current_frame / stream->total_frames;
pos = gst_util_uint64_scale_int (xlen, stream->current_frame,
stream->total_frames);
else
pos = xlen * stream->current_byte / stream->total_bytes;
pos = gst_util_uint64_scale_int (xlen, stream->current_byte,
stream->total_bytes);
} else {
res = FALSE;
}
} else {
if (stream->strh->rate != 0) {
pos = ((gfloat) stream->current_frame * stream->strh->scale *
GST_SECOND / stream->strh->rate);
pos =
gst_util_uint64_scale_int ((guint64) stream->current_frame *
stream->strh->scale, GST_SECOND, stream->strh->rate);
} else {
pos = stream->current_frame * demux->avih->us_frame * GST_USECOND;
}
@ -410,8 +416,9 @@ gst_avi_demux_handle_src_query (GstPad * pad, GstQuery * query)
{
gint64 len;
len = (((gfloat) stream->strh->scale) * stream->strh->length /
stream->strh->rate) * GST_SECOND;
len =
gst_util_uint64_scale ((guint64) stream->strh->length *
stream->strh->scale, GST_SECOND, stream->strh->rate);
gst_query_set_duration (query, GST_FORMAT_TIME, len);
break;
}
@ -486,8 +493,9 @@ gst_avi_demux_handle_src_event (GstPad * pad, GstEvent * event)
tstop = stop;
}
duration = (((gfloat) stream->strh->scale) * stream->strh->length /
stream->strh->rate) * GST_SECOND;
duration =
gst_util_uint64_scale ((guint64) stream->strh->length *
stream->strh->scale, GST_SECOND, stream->strh->rate);
switch (start_type) {
case GST_SEEK_TYPE_CUR:
@ -562,14 +570,19 @@ gst_avi_demux_parse_file_header (GstElement * element, GstBuffer * buf)
if (!gst_riff_parse_file_header (element, buf, &doctype))
return FALSE;
if (doctype != GST_RIFF_RIFF_AVI) {
if (doctype != GST_RIFF_RIFF_AVI)
goto not_avi;
return TRUE;
/* ERRORS */
not_avi:
{
GST_ELEMENT_ERROR (element, STREAM, WRONG_TYPE, (NULL),
("File is not an AVI file: %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (doctype)));
return FALSE;
}
return TRUE;
}
static GstFlowReturn
@ -582,11 +595,19 @@ gst_avi_demux_stream_init (GstAviDemux * avi)
avi->offset, 12, &buf)) != GST_FLOW_OK)
return res;
else if (!gst_avi_demux_parse_file_header (GST_ELEMENT (avi), buf))
return GST_FLOW_ERROR;
goto wrong_header;
avi->offset += 12;
return GST_FLOW_OK;
/* ERRORS */
wrong_header:
{
GST_DEBUG_OBJECT (avi, "error parsing file header");
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
}
/**
@ -609,14 +630,11 @@ gst_avi_demux_parse_avih (GstElement * element,
{
gst_riff_avih *avih;
if (!buf || GST_BUFFER_SIZE (buf) < sizeof (gst_riff_avih)) {
GST_ELEMENT_ERROR (element, STREAM, DEMUX, (NULL),
("Too small avih (%d available, %d needed)",
GST_BUFFER_SIZE (buf), (int) sizeof (gst_riff_avih)));
if (buf)
gst_buffer_unref (buf);
return FALSE;
}
if (buf == NULL)
goto no_buffer;
if (GST_BUFFER_SIZE (buf) < sizeof (gst_riff_avih))
goto avih_too_small;
avih = g_memdup (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
@ -658,6 +676,21 @@ gst_avi_demux_parse_avih (GstElement * element,
gst_buffer_unref (buf);
return TRUE;
/* ERRORS */
no_buffer:
{
GST_ELEMENT_ERROR (element, STREAM, DEMUX, (NULL), ("No buffer"));
return FALSE;
}
avih_too_small:
{
GST_ELEMENT_ERROR (element, STREAM, DEMUX, (NULL),
("Too small avih (%d available, %d needed)",
GST_BUFFER_SIZE (buf), (int) sizeof (gst_riff_avih)));
gst_buffer_unref (buf);
return FALSE;
}
}
/**
@ -684,14 +717,11 @@ gst_avi_demux_parse_superindex (GstElement * element,
*_indexes = NULL;
if (!buf || GST_BUFFER_SIZE (buf) < 24) {
GST_ERROR_OBJECT (element,
"Not enough data to parse superindex (%d available, %d needed)",
GST_BUFFER_SIZE (buf), 24);
if (buf)
gst_buffer_unref (buf);
return FALSE;
}
if (buf == NULL)
goto no_buffer;
if (!buf || GST_BUFFER_SIZE (buf) < 24)
goto too_small;
/* check type of index. The opendml2 specs state that
* there should be 4 dwords per array entry. Type can be
@ -718,6 +748,21 @@ gst_avi_demux_parse_superindex (GstElement * element,
gst_buffer_unref (buf);
return TRUE;
/* ERRORS */
no_buffer:
{
GST_ERROR_OBJECT (element, "No buffer");
return FALSE;
}
too_small:
{
GST_ERROR_OBJECT (element,
"Not enough data to parse superindex (%d available, %d needed)",
GST_BUFFER_SIZE (buf), 24);
gst_buffer_unref (buf);
return FALSE;
}
}
/**
@ -751,23 +796,15 @@ gst_avi_demux_parse_subindex (GstElement * element,
gint64 tmp;
/* check size */
if (!buf || GST_BUFFER_SIZE (buf) < 24) {
GST_ERROR_OBJECT (element,
"Not enough data to parse subindex (%d available, %d needed)",
GST_BUFFER_SIZE (buf), 24);
if (buf)
gst_buffer_unref (buf);
*_entries_list = NULL;
return TRUE; /* continue */
}
if (buf == NULL)
goto no_buffer;
if (GST_BUFFER_SIZE (buf) < 24)
goto too_small;
/* We don't support index-data yet */
if (data[3] & 0x80) {
GST_ELEMENT_ERROR (element, STREAM, NOT_IMPLEMENTED, (NULL),
("Subindex-is-data is not implemented"));
gst_buffer_unref (buf);
return FALSE;
}
if (data[3] & 0x80)
goto not_implemented;
/* check type of index. The opendml2 specs state that
* there should be 4 dwords per array entry. Type can be
@ -840,6 +877,29 @@ gst_avi_demux_parse_subindex (GstElement * element,
}
return TRUE;
/* ERRORS */
no_buffer:
{
GST_ERROR_OBJECT (element, "No buffer");
return TRUE; /* continue */
}
too_small:
{
GST_ERROR_OBJECT (element,
"Not enough data to parse subindex (%d available, %d needed)",
GST_BUFFER_SIZE (buf), 24);
gst_buffer_unref (buf);
*_entries_list = NULL;
return TRUE; /* continue */
}
not_implemented:
{
GST_ELEMENT_ERROR (element, STREAM, NOT_IMPLEMENTED, (NULL),
("Subindex-is-data is not implemented"));
gst_buffer_unref (buf);
return FALSE;
}
}
static void
@ -1060,14 +1120,10 @@ gst_avi_demux_parse_stream (GstElement * element, GstBuffer * buf)
gst_pad_use_fixed_caps (pad);
#if 0
gst_pad_set_formats_function (pad, gst_avi_demux_get_src_formats);
gst_pad_set_event_mask_function (pad, gst_avi_demux_get_event_mask);
#endif
gst_pad_set_event_function (pad, gst_avi_demux_handle_src_event);
gst_pad_set_query_type_function (pad, gst_avi_demux_get_src_query_types);
gst_pad_set_query_function (pad, gst_avi_demux_handle_src_query);
#if 0
gst_pad_set_convert_function (pad, gst_avi_demux_src_convert);
#endif
stream->num = avi->num_streams;
stream->total_bytes = 0;
@ -1093,24 +1149,27 @@ gst_avi_demux_parse_stream (GstElement * element, GstBuffer * buf)
return TRUE;
/* ERRORS */
fail:
/* unref any mem that may be in use */
if (buf)
gst_buffer_unref (buf);
if (sub)
gst_buffer_unref (sub);
g_free (stream->strh);
g_free (stream->strf.data);
g_free (stream->name);
g_free (stream->indexes);
if (stream->initdata)
gst_buffer_unref (stream->initdata);
if (stream->extradata)
gst_buffer_unref (stream->extradata);
memset (stream, 0, sizeof (avi_stream_context));
avi->num_streams++;
{
/* unref any mem that may be in use */
if (buf)
gst_buffer_unref (buf);
if (sub)
gst_buffer_unref (sub);
g_free (stream->strh);
g_free (stream->strf.data);
g_free (stream->name);
g_free (stream->indexes);
if (stream->initdata)
gst_buffer_unref (stream->initdata);
if (stream->extradata)
gst_buffer_unref (stream->extradata);
memset (stream, 0, sizeof (avi_stream_context));
avi->num_streams++;
return FALSE;
return FALSE;
}
}
/**
@ -1942,19 +2001,13 @@ gst_avi_demux_stream_header (GstAviDemux * avi)
if ((res = gst_riff_read_chunk (GST_ELEMENT (avi), avi->sinkpad,
&avi->offset, &tag, &buf)) != GST_FLOW_OK)
return res;
else if (tag != GST_RIFF_TAG_LIST) {
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL),
("Invalid AVI header (no LIST at start): %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (tag)));
return GST_FLOW_ERROR;
} else if (GST_BUFFER_SIZE (buf) < 4) {
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL), ("No header found"));
return GST_FLOW_ERROR;
}
else if (tag != GST_RIFF_TAG_LIST)
goto no_list;
else if (GST_BUFFER_SIZE (buf) < 4)
goto no_header;
/* Find the 'hdrl' LIST tag */
while (GST_READ_UINT32_LE (GST_BUFFER_DATA (buf)) != GST_RIFF_LIST_hdrl) {
GST_LOG_OBJECT (avi, "buffer contains %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (GST_READ_UINT32_LE (GST_BUFFER_DATA (buf))));
@ -1963,37 +2016,18 @@ gst_avi_demux_stream_header (GstAviDemux * avi)
if ((res = gst_riff_read_chunk (GST_ELEMENT (avi), avi->sinkpad,
&avi->offset, &tag, &buf)) != GST_FLOW_OK)
return res;
else if (tag != GST_RIFF_TAG_LIST) {
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL),
("Invalid AVI header (no LIST at start): %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (tag)));
return GST_FLOW_ERROR;
} else if (GST_BUFFER_SIZE (buf) < 4) {
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL),
("Invalid AVI header (no hdrl at start): %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (tag)));
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
else if (tag != GST_RIFF_TAG_LIST)
goto no_list;
else if (GST_BUFFER_SIZE (buf) < 4)
goto no_header;
}
/* the hdrl starts with a 'avih' header */
if (!gst_riff_parse_chunk (GST_ELEMENT (avi), buf, &offset, &tag, &sub) ||
tag != GST_RIFF_TAG_avih) {
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL),
("Invalid AVI header (no avih at start): %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (tag)));
if (sub) {
gst_buffer_unref (sub);
sub = NULL;
}
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
} else if (!gst_avi_demux_parse_avih (GST_ELEMENT (avi), sub, &avi->avih)) {
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
tag != GST_RIFF_TAG_avih)
goto no_avih;
else if (!gst_avi_demux_parse_avih (GST_ELEMENT (avi), sub, &avi->avih))
goto invalid_avih;
/* now, read the elements from the header until the end */
while (gst_riff_parse_chunk (GST_ELEMENT (avi), buf, &offset, &tag, &sub)) {
@ -2045,10 +2079,9 @@ gst_avi_demux_stream_header (GstAviDemux * avi)
gst_buffer_unref (buf);
/* check parsed streams */
if (avi->num_streams == 0) {
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL), ("No streams found"));
return GST_FLOW_ERROR;
} else if (avi->num_streams != avi->avih->streams) {
if (avi->num_streams == 0)
goto no_streams;
else if (avi->num_streams != avi->avih->streams) {
GST_WARNING_OBJECT (avi,
"Stream header mentioned %d streams, but %d available",
avi->avih->streams, avi->num_streams);
@ -2119,22 +2152,19 @@ done:
gst_avi_demux_stream_scan (avi, &index, &alloc);
}
if (index) {
gst_avi_demux_massage_index (avi, index, alloc);
} else {
g_list_free (index);
g_list_foreach (alloc, (GFunc) g_free, NULL);
g_list_free (alloc);
if (!index)
goto no_index;
GST_ELEMENT_ERROR (avi, STREAM, NOT_IMPLEMENTED, (NULL),
("Could not get/create index"));
return GST_FLOW_ERROR;
}
gst_avi_demux_massage_index (avi, index, alloc);
/* send initial discont */
avi->segment_start = 0;
avi->segment_stop = (gint64) (((gfloat) avi->stream[0].strh->scale) *
avi->stream[0].strh->length / avi->stream[0].strh->rate) * GST_SECOND;
avi->segment_stop =
gst_util_uint64_scale_int ((gint64) avi->stream[0].strh->scale *
avi->stream[0].strh->length, GST_SECOND, avi->stream[0].strh->rate);
GST_DEBUG_OBJECT (avi, "segment stop %" G_GINT64_FORMAT, avi->segment_stop);
avi->seek_event = gst_event_new_new_segment
(FALSE, avi->segment_rate, GST_FORMAT_TIME,
avi->segment_start, avi->segment_stop, avi->segment_start);
@ -2145,6 +2175,62 @@ done:
gst_element_no_more_pads (GST_ELEMENT (avi));
return GST_FLOW_OK;
/* ERRORS */
no_list:
{
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL),
("Invalid AVI header (no LIST at start): %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (tag)));
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
no_header:
{
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL),
("Invalid AVI header (no hdrl at start): %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (tag)));
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
no_avih:
{
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL),
("Invalid AVI header (no avih at start): %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (tag)));
if (sub) {
gst_buffer_unref (sub);
sub = NULL;
}
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
invalid_avih:
{
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL),
("Invalid AVI header (cannot parse avih at start)"));
if (sub) {
gst_buffer_unref (sub);
sub = NULL;
}
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
no_streams:
{
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL), ("No streams found"));
return GST_FLOW_ERROR;
}
no_index:
{
g_list_free (index);
g_list_foreach (alloc, (GFunc) g_free, NULL);
g_list_free (alloc);
GST_ELEMENT_ERROR (avi, STREAM, NOT_IMPLEMENTED, (NULL),
("Could not get/create index"));
return GST_FLOW_ERROR;
}
}
/*
@ -2522,6 +2608,7 @@ gst_avi_demux_sink_activate_pull (GstPad * sinkpad, gboolean active)
static GstStateChangeReturn
gst_avi_demux_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstAviDemux *avi = GST_AVI_DEMUX (element);
switch (transition) {
@ -2531,13 +2618,10 @@ gst_avi_demux_change_state (GstElement * element, GstStateChange transition)
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state) {
GstStateChangeReturn ret;
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret != GST_STATE_CHANGE_SUCCESS)
return ret;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
goto done;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
@ -2547,5 +2631,6 @@ gst_avi_demux_change_state (GstElement * element, GstStateChange transition)
break;
}
return GST_STATE_CHANGE_SUCCESS;
done:
return ret;
}