mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-27 12:11:13 +00:00
Code Issues 1 Projects Releases Wiki Activity

rtpvrawpay: fail on interlaced video

Browse source 
Detect and fail when trying to payload interlaced video.
This commit is contained in:
Wim Taymans 2009-02-26 13:00:58 +01:00
parent 80510aeee7
commit 62d5787bcd
1 changed files with 37 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

39
gst/rtp/gstrtpvrawpay.c
View file

@ -211,6 +211,7 @@ gst_rtp_vraw_pay_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
GstVideoFormat sampling;
const gchar *depthstr, *samplingstr, *colorimetrystr;
gchar *wstr, *hstr;
gboolean interlaced;
rtpvrawpay = GST_RTP_VRAW_PAY (payload);
@ -229,6 +230,13 @@ gst_rtp_vraw_pay_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
if (!res)
goto missing_dimension;
/* fail on interlaced video for now */
if (!gst_structure_get_boolean (s, "interlaced", &interlaced))
interlaced = FALSE;
if (interlaced)
goto interlaced;
yp = up = vp = 0;
xinc = yinc = 1;
@ -358,6 +366,11 @@ unknown_fourcc:
GST_ERROR_OBJECT (payload, "invalid or missing fourcc");
return FALSE;
}
interlaced:
{
GST_ERROR_OBJECT (payload, "interlaced video not supported yet");
return FALSE;
}
missing_dimension:
{
GST_ERROR_OBJECT (payload, "missing width or height property");
@ -409,7 +422,7 @@ gst_rtp_vraw_pay_handle_buffer (GstBaseRTPPayload * payload, GstBuffer * buffer)
GstBuffer *out;
guint8 *outdata, *headers;
gboolean next_line;
guint length, cont, pixels;
guint length, cont, pixels, fieldid;
/* get the max allowed payload length size, we try to fill the complete MTU */
left = gst_rtp_buffer_calc_payload_len (mtu, 0, 0);
@ -422,6 +435,24 @@ gst_rtp_vraw_pay_handle_buffer (GstBaseRTPPayload * payload, GstBuffer * buffer)
GST_LOG_OBJECT (rtpvrawpay, "created buffer of size %u for MTU %u", left,
mtu);
/*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Extended Sequence Number | Length |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |F| Line No |C| Offset |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Length |F| Line No |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |C| Offset | .
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ .
* . .
* . Two (partial) lines of video data .
* . .
* +---------------------------------------------------------------+
*/
/* need 2 bytes for the extended sequence number */
*outdata++ = 0;
*outdata++ = 0;
@ -456,8 +487,12 @@ gst_rtp_vraw_pay_handle_buffer (GstBaseRTPPayload * payload, GstBuffer * buffer)
/* write length */
*outdata++ = (length >> 8) & 0xff;
*outdata++ = length & 0xff;
/* always 0 for now */
fieldid = 0x00;
/* write line no */
*outdata++ = (line >> 8) & 0x7f;
*outdata++ = ((line >> 8) & 0x7f) | fieldid;
*outdata++ = line & 0xff;
if (next_line) {