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gst-libs/gst/riff/riff-media.c: More sanity checks for the header fields.

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Original commit message from CVS:
* gst-libs/gst/riff/riff-media.c: (gst_riff_create_audio_caps):
More sanity checks for the header fields.
This commit is contained in:
Stefan Kost 2007-04-13 06:17:45 +00:00
parent 83ab98b0fc
commit 95ef089dc6
2 changed files with 41 additions and 2 deletions
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5
ChangeLog
View file

@ -1,3 +1,8 @@
2007-04-13 Stefan Kost <ensonic@users.sf.net>
* gst-libs/gst/riff/riff-media.c: (gst_riff_create_audio_caps):
More sanity checks for the header fields.
2007-04-12 Tim-Philipp Müller <tim at centricular dot net>
* gst-libs/gst/tag/tags.c: (gst_tag_freeform_string_to_utf8):

38
gst-libs/gst/riff/riff-media.c
View file

@ -29,6 +29,7 @@
#include <gst/audio/multichannel.h>
#include <string.h>
#include <math.h>
GST_DEBUG_CATEGORY_EXTERN (riff_debug);
#define GST_CAT_DEFAULT riff_debug
@ -747,7 +748,7 @@ gst_riff_create_audio_caps (guint16 codec_id,
{
gboolean block_align = FALSE, rate_chan = TRUE;
GstCaps *caps = NULL;
gint rate_min = 1000, rate_max = 96000;
gint rate_min = 8000, rate_max = 96000;
gint channels_max = 2;
switch (codec_id) {
@ -755,8 +756,15 @@ gst_riff_create_audio_caps (guint16 codec_id,
if (strf != NULL) {
gint ba = strf->blockalign;
gint ch = strf->channels;
gint ws = strf->size;
gint wd = ba * 8 / ch;
gint ws;
if (strf->size > 32) {
GST_WARNING ("invalid depth (%d) of pcm audio, overwriting.",
strf->size);
strf->size = 8 * (guint) ceil (wd / 8.0);
}
ws = strf->size;
caps = gst_caps_new_simple ("audio/x-raw-int",
"endianness", G_TYPE_INT, G_LITTLE_ENDIAN,
@ -880,6 +888,7 @@ gst_riff_create_audio_caps (guint16 codec_id,
strf->blockalign = strf->av_bps * strf->channels;
}
}
rate_max = 48000;
caps = gst_caps_new_simple ("audio/x-alaw", NULL);
if (codec_name)
*codec_name = g_strdup ("A-law audio");
@ -917,6 +926,7 @@ gst_riff_create_audio_caps (guint16 codec_id,
strf->blockalign = strf->av_bps * strf->channels;
}
}
rate_max = 48000;
caps = gst_caps_new_simple ("audio/x-mulaw", NULL);
if (codec_name)
*codec_name = g_strdup ("Mu-law audio");
@ -926,6 +936,7 @@ gst_riff_create_audio_caps (guint16 codec_id,
goto unknown;
case GST_RIFF_WAVE_FORMAT_DVI_ADPCM:
rate_max = 48000;
caps = gst_caps_new_simple ("audio/x-adpcm",
"layout", G_TYPE_STRING, "dvi", NULL);
if (codec_name)
@ -941,6 +952,8 @@ gst_riff_create_audio_caps (guint16 codec_id,
break;
case GST_RIFF_WAVE_FORMAT_MPEGL12: /* mp1 or mp2 */
rate_min = 16000;
rate_max = 48000;
caps = gst_caps_new_simple ("audio/mpeg",
"mpegversion", G_TYPE_INT, 1, "layer", G_TYPE_INT, 2, NULL);
if (codec_name)
@ -948,6 +961,8 @@ gst_riff_create_audio_caps (guint16 codec_id,
break;
case GST_RIFF_WAVE_FORMAT_MPEGL3: /* mp3 */
rate_min = 16000;
rate_max = 48000;
caps = gst_caps_new_simple ("audio/mpeg",
"mpegversion", G_TYPE_INT, 1, "layer", G_TYPE_INT, 3, NULL);
if (codec_name)
@ -1128,6 +1143,11 @@ gst_riff_create_audio_caps (guint16 codec_id,
if (strf != NULL) {
if (rate_chan) {
if (strf->channels > channels_max)
goto too_many_channels;
if (strf->rate < rate_min || strf->rate > rate_max)
goto invalid_rate;
gst_caps_set_simple (caps,
"rate", G_TYPE_INT, strf->rate,
"channels", G_TYPE_INT, strf->channels, NULL);
@ -1155,6 +1175,20 @@ gst_riff_create_audio_caps (guint16 codec_id,
}
return caps;
/* ERROR */
too_many_channels:
GST_WARNING
("Stream claims to contain %lu channels, but format only supports %lu",
strf->channels, channels_max);
gst_caps_unref (caps);
return NULL;
invalid_rate:
GST_WARNING
("Stream with sample_rate %lu, but format only supports %lu .. %lu",
strf->rate, rate_min, rate_max);
gst_caps_unref (caps);
return NULL;
}
GstCaps *