FaSTTUBe/GST-Tensordecoder-ov_ep
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use new bytestream api

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Original commit message from CVS:
use new bytestream api
This commit is contained in:
Steve Baker 2002-05-15 19:08:16 +00:00
parent a26984bd9d
commit ee40ec1e0a
1 changed files with 23 additions and 19 deletions
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42
gst/mpegstream/gstmpegpacketize.c
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@ -58,11 +58,12 @@ parse_packhead (GstMPEGPacketize * packetize)
gint length = 8 + 4; gint length = 8 + 4;
guint8 *buf; guint8 *buf;
GstBuffer *outbuf; GstBuffer *outbuf;
guint32 got_bytes;
GST_DEBUG (0, "packetize: in parse_packhead"); GST_DEBUG (0, "packetize: in parse_packhead");
buf = gst_bytestream_peek_bytes (packetize->bs, length); got_bytes = gst_bytestream_peek_bytes (packetize->bs, &buf, length);
if (!buf) return NULL; if (got_bytes < length) return NULL;
buf += 4; buf += 4;
GST_DEBUG (0, "code %02x", *buf); GST_DEBUG (0, "code %02x", *buf);
@ -72,16 +73,16 @@ parse_packhead (GstMPEGPacketize * packetize)
GST_DEBUG (0, "packetize::parse_packhead setting mpeg2"); GST_DEBUG (0, "packetize::parse_packhead setting mpeg2");
packetize->MPEG2 = TRUE; packetize->MPEG2 = TRUE;
length += 2; length += 2;
buf = gst_bytestream_peek_bytes (packetize->bs, length); got_bytes = gst_bytestream_peek_bytes (packetize->bs, &buf, length);
if (!buf) return NULL; if (got_bytes < length) return NULL;
} }
else { else {
GST_DEBUG (0, "packetize::parse_packhead setting mpeg1"); GST_DEBUG (0, "packetize::parse_packhead setting mpeg1");
packetize->MPEG2 = FALSE; packetize->MPEG2 = FALSE;
} }
outbuf = gst_bytestream_read (packetize->bs, length); got_bytes = gst_bytestream_read (packetize->bs, &outbuf, length);
if (!outbuf) return NULL; if (got_bytes < length) return NULL;
return GST_DATA (outbuf); return GST_DATA (outbuf);
} }
@ -93,18 +94,19 @@ parse_generic (GstMPEGPacketize *packetize)
GstByteStream *bs = packetize->bs; GstByteStream *bs = packetize->bs;
guchar *buf; guchar *buf;
GstBuffer *outbuf; GstBuffer *outbuf;
guint32 got_bytes;
GST_DEBUG (0, "packetize: in parse_syshead"); GST_DEBUG (0, "packetize: in parse_syshead");
buf = gst_bytestream_peek_bytes (bs, 2 + 4); got_bytes = gst_bytestream_peek_bytes (bs, (guint8**)&buf, 2 + 4);
if (!buf) return NULL; if (got_bytes < 6) return NULL;
buf += 4; buf += 4;
length = GUINT16_FROM_BE (*(guint16 *) buf); length = GUINT16_FROM_BE (*(guint16 *) buf);
GST_DEBUG (0, "packetize: header_length %d", length); GST_DEBUG (0, "packetize: header_length %d", length);
outbuf = gst_bytestream_read (packetize->bs, 2 + length + 4); got_bytes = gst_bytestream_read (packetize->bs, &outbuf, 2 + length + 4);
if (!outbuf) return NULL; if (got_bytes < 2 + length + 4) return NULL;
return GST_DATA (outbuf); return GST_DATA (outbuf);
} }
@ -118,9 +120,10 @@ parse_chunk (GstMPEGPacketize *packetize)
guint32 code; guint32 code;
const gint chunksize = 4096; const gint chunksize = 4096;
GstBuffer *outbuf = NULL; GstBuffer *outbuf = NULL;
guint32 got_bytes;
buf = gst_bytestream_peek_bytes (bs, chunksize); got_bytes = gst_bytestream_peek_bytes (bs, (guint8**)&buf, chunksize);
if (!buf) if (got_bytes < chunksize)
return FALSE; return FALSE;
offset = 4; offset = 4;
@ -134,13 +137,13 @@ parse_chunk (GstMPEGPacketize *packetize)
GST_DEBUG (0, " code = %08x", code); GST_DEBUG (0, " code = %08x", code);
if ((offset % chunksize) == 0) { if ((offset % chunksize) == 0) {
buf = gst_bytestream_peek_bytes (bs, offset + chunksize); got_bytes = gst_bytestream_peek_bytes (bs, (guint8**)&buf, offset + chunksize);
if (!buf) if (got_bytes < offset + chunksize)
return NULL; return NULL;
} }
} }
if (offset > 4) { if (offset > 4) {
outbuf = gst_bytestream_read (bs, offset-4); got_bytes = gst_bytestream_read (bs, &outbuf, offset-4);
} }
return GST_DATA (outbuf); return GST_DATA (outbuf);
} }
@ -155,9 +158,10 @@ find_start_code (GstMPEGPacketize *packetize)
gint offset; gint offset;
guint32 code; guint32 code;
const gint chunksize = 4096; const gint chunksize = 4096;
guint32 got_bytes;
buf = gst_bytestream_peek_bytes (bs, chunksize); got_bytes = gst_bytestream_peek_bytes (bs, (guint8**)&buf, chunksize);
if (!buf) if (got_bytes < chunksize)
return FALSE; return FALSE;
offset = 4; offset = 4;
@ -174,8 +178,8 @@ find_start_code (GstMPEGPacketize *packetize)
if (offset == chunksize) { if (offset == chunksize) {
if (!gst_bytestream_flush (bs, offset)) if (!gst_bytestream_flush (bs, offset))
return FALSE; return FALSE;
buf = gst_bytestream_peek_bytes (bs, chunksize); got_bytes = gst_bytestream_peek_bytes (bs, (guint8**)&buf, chunksize);
if (!buf) if (got_bytes < chunksize)
return FALSE; return FALSE;
offset = 0; offset = 0;
} }