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gst/wavparse/gstwavparse.*: More sanity check for the header fields. Fix type for 'rate' header field.

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Original commit message from CVS:
* gst/wavparse/gstwavparse.c: (uint64_ceiling_scale_int),
(gst_wavparse_perform_seek), (gst_wavparse_stream_headers),
(gst_wavparse_stream_data):
* gst/wavparse/gstwavparse.h:
More sanity check for the header fields. Fix type for 'rate' header
field.
This commit is contained in:
Stefan Kost 2007-04-13 06:20:28 +00:00
parent ef7c18817f
commit 0722106b57
3 changed files with 56 additions and 8 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2007-04-13 Stefan Kost <ensonic@users.sf.net>
* gst/wavparse/gstwavparse.c: (uint64_ceiling_scale_int),
(gst_wavparse_perform_seek), (gst_wavparse_stream_headers),
(gst_wavparse_stream_data):
* gst/wavparse/gstwavparse.h:
More sanity check for the header fields. Fix type for 'rate' header
field.
2007-04-12 Tim-Philipp Müller <tim at centricular dot net>
* gst/icydemux/gsticydemux.c: (notgst_tag_freeform_string_to_utf8),

49
gst/wavparse/gstwavparse.c
View file

@ -58,6 +58,7 @@
#include "config.h"
#endif
#include <string.h>
#include <math.h>
#include "gstwavparse.h"
#include "gst/riff/riff-ids.h"
@ -108,6 +109,7 @@ static GstStaticPadTemplate src_template_factory =
GST_STATIC_PAD_TEMPLATE ("wavparse_src",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
/* FIXME: we need to sync this better with gst_riff_create_audio_caps() */
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) little_endian, "
"signed = (boolean) true, "
@ -131,11 +133,11 @@ static GstStaticPadTemplate src_template_factory =
"audio/mpeg, "
"mpegversion = (int) 1, "
"layer = (int) [ 1, 3 ], "
"rate = (int) [ 8000, 48000 ], "
"rate = (int) [ 16000, 48000 ], "
"channels = (int) [ 1, 2 ]; "
"audio/mpeg, "
"mpegversion = (int) 4, "
"rate = (int) [ 8000, 48000 ], "
"rate = (int) [ 8000, 96000 ], "
"channels = (int) [ 1, 8 ]; "
"audio/x-alaw, "
"rate = (int) [ 8000, 48000 ], "
@ -194,7 +196,6 @@ gst_wavparse_class_init (GstWavParseClass * klass)
gstelement_class->send_event = gst_wavparse_send_event;
}
static void
gst_wavparse_dispose (GObject * object)
{
@ -1107,8 +1108,11 @@ gst_wavparse_stream_headers (GstWavParse * wav)
buf = NULL; /* parse_strf_auds() took ownership of buffer */
/* do sanity checks of header fields */
if (header->channels == 0)
goto no_channels;
if (header->rate == 0)
goto no_rate;
GST_DEBUG_OBJECT (wav, "creating the caps");
@ -1123,6 +1127,13 @@ gst_wavparse_stream_headers (GstWavParse * wav)
if (!caps)
goto unknown_format;
/* do more sanity checks of header fields
* (these can be sanitized by gst_riff_create_audio_caps()
*/
if (header->blockalign >
header->channels * (guint) ceil (header->size / 8.0))
goto invalid_blockalign;
wav->format = header->format;
wav->rate = header->rate;
wav->channels = header->channels;
@ -1144,6 +1155,8 @@ gst_wavparse_stream_headers (GstWavParse * wav)
break;
}
default:
if (wav->av_bps > wav->blockalign * wav->rate)
goto invalid_bps;
/* use the configured bps */
wav->bps = wav->av_bps;
break;
@ -1159,7 +1172,7 @@ gst_wavparse_stream_headers (GstWavParse * wav)
GST_DEBUG_OBJECT (wav, "width = %u", (guint) wav->width);
GST_DEBUG_OBJECT (wav, "depth = %u", (guint) wav->depth);
GST_DEBUG_OBJECT (wav, "av_bps = %u", (guint) wav->av_bps);
GST_DEBUG_OBJECT (wav, "frequency = %d", wav->rate);
GST_DEBUG_OBJECT (wav, "frequency = %u", (guint) wav->rate);
GST_DEBUG_OBJECT (wav, "channels = %u", (guint) wav->channels);
GST_DEBUG_OBJECT (wav, "bytes_per_sample = %u", wav->bytes_per_sample);
@ -1342,10 +1355,36 @@ no_channels:
g_free (codec_name);
return GST_FLOW_ERROR;
}
no_rate:
{
GST_ELEMENT_ERROR (wav, STREAM, FAILED, (NULL),
("Stream with sample_rate == 0 - invalid data"));
g_free (header);
g_free (codec_name);
return GST_FLOW_ERROR;
}
invalid_blockalign:
{
GST_ELEMENT_ERROR (wav, STREAM, FAILED, (NULL),
("Stream claims blockalign = %u, which is more than %u - invalid data",
header->blockalign,
header->channels * (guint) ceil (header->size / 8.0)));
g_free (header);
g_free (codec_name);
return GST_FLOW_ERROR;
}
invalid_bps:
{
GST_ELEMENT_ERROR (wav, STREAM, FAILED, (NULL),
("Stream claims av_bsp = %lu, which is more than %lu - invalid data",
wav->av_bps, wav->blockalign * wav->rate));
g_free (codec_name);
return GST_FLOW_ERROR;
}
no_bytes_per_sample:
{
GST_ELEMENT_ERROR (wav, STREAM, FAILED, (NULL),
("could not caluclate bytes per sample - invalid data"));
("Could not caluclate bytes per sample - invalid data"));
g_free (codec_name);
return GST_FLOW_ERROR;
}

6
gst/wavparse/gstwavparse.h
View file

@ -76,7 +76,7 @@ struct _GstWavParse {
/* useful audio data */
guint16 depth;
gint rate;
guint32 rate;
guint16 channels;
guint16 blockalign;
guint16 width;
@ -95,7 +95,7 @@ struct _GstWavParse {
/* offset/length of data part */
guint64 datastart;
guint64 datasize;
/* pending seek */
GstEvent *seek_event;
@ -107,7 +107,7 @@ struct _GstWavParse {
/* configured segment, start/stop expressed in time */
GstSegment segment;
gboolean segment_running;
/* for late pad configuration */
gboolean first;
};