2 * Copyright (C) 2008 Axis Communications <dev-gstreamer@axis.com>
3 * @author Bjorn Ostby <bjorn.ostby@axis.com>
4 * @author Peter Kjellerstedt <peter.kjellerstedt@axis.com>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
23 * SECTION:element-rtpjpegpay
25 * Payload encode JPEG pictures into RTP packets according to RFC 2435.
26 * For detailed information see: http://www.rfc-editor.org/rfc/rfc2435.txt
28 * The payloader takes a JPEG picture, scans the header for quantization
29 * tables (if needed) and constructs the RTP packet header followed by
30 * the actual JPEG entropy scan.
32 * The payloader assumes that correct width and height is found in the caps.
40 #include <gst/rtp/gstrtpbuffer.h>
42 #include "gstrtpjpegpay.h"
44 static GstStaticPadTemplate gst_rtp_jpeg_pay_sink_template =
45 GST_STATIC_PAD_TEMPLATE ("sink",
48 GST_STATIC_CAPS ("image/jpeg; " "video/x-jpeg")
51 static GstStaticPadTemplate gst_rtp_jpeg_pay_src_template =
52 GST_STATIC_PAD_TEMPLATE ("src",
55 GST_STATIC_CAPS ("application/x-rtp, "
56 " media = (string) \"video\", "
57 " payload = (int) 26 , "
58 " clock-rate = (int) 90000, " " encoding-name = (string) \"JPEG\"")
61 GST_DEBUG_CATEGORY_STATIC (rtpjpegpay_debug);
62 #define GST_CAT_DEFAULT (rtpjpegpay_debug)
67 * Prefix length in the header before the quantization tables:
68 * Two size bytes and one byte for precision
70 #define QUANT_PREFIX_LEN 3
73 * DEFAULT_BUFFER_LIST:
76 #define DEFAULT_BUFFER_LIST FALSE
78 typedef enum _RtpJpegMarker RtpJpegMarker;
82 * @JPEG_MARKER: Prefix for JPEG marker
83 * @JPEG_MARKER_SOI: Start of Image marker
84 * @JPEG_MARKER_JFIF: JFIF marker
85 * @JPEG_MARKER_CMT: Comment marker
86 * @JPEG_MARKER_DQT: Define Quantization Table marker
87 * @JPEG_MARKER_SOF: Start of Frame marker
88 * @JPEG_MARKER_DHT: Define Huffman Table marker
89 * @JPEG_MARKER_SOS: Start of Scan marker
90 * @JPEG_MARKER_EOI: End of Image marker
91 * @JPEG_MARKER_DRI: Define Restart Interval marker
93 * Identifers for markers in JPEG header
98 JPEG_MARKER_SOI = 0xD8,
99 JPEG_MARKER_JFIF = 0xE0,
100 JPEG_MARKER_CMT = 0xFE,
101 JPEG_MARKER_DQT = 0xDB,
102 JPEG_MARKER_SOF = 0xC0,
103 JPEG_MARKER_DHT = 0xC4,
104 JPEG_MARKER_SOS = 0xDA,
105 JPEG_MARKER_EOI = 0xD9,
106 JPEG_MARKER_DRI = 0xDD
109 #define DEFAULT_JPEG_QUANT 255
111 #define DEFAULT_JPEG_QUALITY 255
112 #define DEFAULT_JPEG_TYPE 1
127 Q_TABLE_MAX /* only support for two tables at the moment */
130 typedef struct _RtpJpegHeader RtpJpegHeader;
134 * @type_spec: type specific
135 * @offset: fragment offset
137 * @q: quantization table for this frame
138 * @width: width of image in 8-pixel multiples
139 * @height: height of image in 8-pixel multiples
142 * 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
143 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
144 * | Type-specific | Fragment Offset |
145 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
146 * | Type | Q | Width | Height |
147 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
149 struct _RtpJpegHeader
162 * @precision: specify size of quantization tables
163 * @length: length of quantization data
166 * 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
167 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
168 * | MBZ | Precision | Length |
169 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
170 * | Quantization Table Data |
172 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
188 * RtpRestartMarkerHeader:
189 * @restartInterval: number of MCUs that appear between restart markers
190 * @restartFirstLastCount: a combination of the first packet mark in the chunk
191 * last packet mark in the chunk and the position of the
192 * first restart interval in the current "chunk"
195 * 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
196 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
197 * | Restart Interval |F|L| Restart Count |
198 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
200 * The restart marker header is implemented according to the following
201 * methodology specified in section 3.1.7 of rfc2435.txt.
203 * "If the restart intervals in a frame are not guaranteed to be aligned
204 * with packet boundaries, the F (first) and L (last) bits MUST be set
205 * to 1 and the Restart Count MUST be set to 0x3FFF. This indicates
206 * that a receiver MUST reassemble the entire frame before decoding it."
212 guint16 restart_interval;
213 guint16 restart_count;
214 } RtpRestartMarkerHeader;
223 /* FIXME: restart marker header currently unsupported */
225 static void gst_rtp_jpeg_pay_set_property (GObject * object, guint prop_id,
226 const GValue * value, GParamSpec * pspec);
228 static void gst_rtp_jpeg_pay_get_property (GObject * object, guint prop_id,
229 GValue * value, GParamSpec * pspec);
231 static gboolean gst_rtp_jpeg_pay_setcaps (GstBaseRTPPayload * basepayload,
234 static GstFlowReturn gst_rtp_jpeg_pay_handle_buffer (GstBaseRTPPayload * pad,
237 GST_BOILERPLATE (GstRtpJPEGPay, gst_rtp_jpeg_pay, GstBaseRTPPayload,
238 GST_TYPE_BASE_RTP_PAYLOAD);
241 gst_rtp_jpeg_pay_base_init (gpointer klass)
243 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
245 gst_element_class_add_pad_template (element_class,
246 gst_static_pad_template_get (&gst_rtp_jpeg_pay_src_template));
247 gst_element_class_add_pad_template (element_class,
248 gst_static_pad_template_get (&gst_rtp_jpeg_pay_sink_template));
250 gst_element_class_set_details_simple (element_class, "RTP JPEG payloader",
251 "Codec/Payloader/Network/RTP",
252 "Payload-encodes JPEG pictures into RTP packets (RFC 2435)",
253 "Axis Communications <dev-gstreamer@axis.com>");
257 gst_rtp_jpeg_pay_class_init (GstRtpJPEGPayClass * klass)
259 GObjectClass *gobject_class;
260 GstBaseRTPPayloadClass *gstbasertppayload_class;
262 gobject_class = (GObjectClass *) klass;
263 gstbasertppayload_class = (GstBaseRTPPayloadClass *) klass;
265 gobject_class->set_property = gst_rtp_jpeg_pay_set_property;
266 gobject_class->get_property = gst_rtp_jpeg_pay_get_property;
268 gstbasertppayload_class->set_caps = gst_rtp_jpeg_pay_setcaps;
269 gstbasertppayload_class->handle_buffer = gst_rtp_jpeg_pay_handle_buffer;
271 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_JPEG_QUALITY,
272 g_param_spec_int ("quality", "Quality",
273 "Quality factor on JPEG data (unused)", 0, 255, 255,
274 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
276 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_JPEG_TYPE,
277 g_param_spec_int ("type", "Type",
278 "Default JPEG Type, overwritten by SOF when present", 0, 255,
279 DEFAULT_JPEG_TYPE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
281 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BUFFER_LIST,
282 g_param_spec_boolean ("buffer-list", "Buffer List",
284 DEFAULT_BUFFER_LIST, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
286 GST_DEBUG_CATEGORY_INIT (rtpjpegpay_debug, "rtpjpegpay", 0,
287 "Motion JPEG RTP Payloader");
291 gst_rtp_jpeg_pay_init (GstRtpJPEGPay * pay, GstRtpJPEGPayClass * klass)
293 pay->quality = DEFAULT_JPEG_QUALITY;
294 pay->quant = DEFAULT_JPEG_QUANT;
295 pay->type = DEFAULT_JPEG_TYPE;
296 pay->buffer_list = DEFAULT_BUFFER_LIST;
300 gst_rtp_jpeg_pay_setcaps (GstBaseRTPPayload * basepayload, GstCaps * caps)
302 GstStructure *caps_structure = gst_caps_get_structure (caps, 0);
305 gint width = 0, height = 0;
307 pay = GST_RTP_JPEG_PAY (basepayload);
309 /* these properties are not mandatory, we can get them from the SOF, if there
311 if (gst_structure_get_int (caps_structure, "height", &height)) {
312 if (height <= 0 || height > 2040)
313 goto invalid_dimension;
315 pay->height = height / 8;
317 if (gst_structure_get_int (caps_structure, "width", &width)) {
318 if (width <= 0 || width > 2040)
319 goto invalid_dimension;
321 pay->width = width / 8;
323 gst_basertppayload_set_options (basepayload, "video", TRUE, "JPEG", 90000);
324 res = gst_basertppayload_set_outcaps (basepayload, NULL);
331 GST_ERROR_OBJECT (pay, "Invalid width/height from caps");
337 gst_rtp_jpeg_pay_header_size (const guint8 * data, guint offset)
339 return data[offset] << 8 | data[offset + 1];
343 gst_rtp_jpeg_pay_read_quant_table (const guint8 * data, guint size,
344 guint offset, RtpQuantTable tables[])
346 guint quant_size, tab_size;
350 if (offset + 2 > size)
353 quant_size = gst_rtp_jpeg_pay_header_size (data, offset);
355 goto small_quant_size;
357 /* clamp to available data */
358 if (offset + quant_size > size)
359 quant_size = size - offset;
364 while (quant_size > 0) {
365 /* not enough to read the id */
366 if (offset + 1 > size)
369 id = data[offset] & 0x0f;
371 /* invalid id received - corrupt data */
374 prec = (data[offset] & 0xf0) >> 4;
380 /* there is not enough for the table */
381 if (quant_size < tab_size + 1)
384 GST_LOG ("read quant table %d, tab_size %d, prec %02x", id, tab_size, prec);
386 tables[id].size = tab_size;
387 tables[id].data = &data[offset + 1];
390 quant_size -= tab_size;
394 return offset + quant_size;
399 GST_WARNING ("not enough data");
404 GST_WARNING ("quant_size too small (%u < 2)", quant_size);
409 GST_WARNING ("invalid id");
414 GST_WARNING ("not enough data for table (%u < %u)", quant_size,
421 gst_rtp_jpeg_pay_read_sof (GstRtpJPEGPay * pay, const guint8 * data,
422 guint size, guint * offset, CompInfo info[])
425 guint width, height, infolen;
431 /* we need at least 17 bytes for the SOF */
435 sof_size = gst_rtp_jpeg_pay_header_size (data, off);
444 /* precision should be 8 */
445 if (data[off++] != 8)
448 /* read dimensions */
449 height = data[off] << 8 | data[off + 1];
450 width = data[off + 2] << 8 | data[off + 3];
453 GST_LOG_OBJECT (pay, "got dimensions %ux%u", height, width);
455 if (height == 0 || height > 2040)
456 goto invalid_dimension;
457 if (width == 0 || width > 2040)
458 goto invalid_dimension;
460 pay->height = height / 8;
461 pay->width = width / 8;
463 /* we only support 3 components */
464 if (data[off++] != 3)
468 for (i = 0; i < 3; i++) {
469 elem.id = data[off++];
470 elem.samp = data[off++];
471 elem.qt = data[off++];
472 GST_LOG_OBJECT (pay, "got comp %d, samp %02x, qt %d", elem.id, elem.samp,
474 /* insertion sort from the last element to the first */
475 for (j = infolen; j > 1; j--) {
476 if (G_LIKELY (info[j - 1].id < elem.id))
478 info[j] = info[j - 1];
484 /* see that the components are supported */
485 if (info[0].samp == 0x21)
487 else if (info[0].samp == 0x22)
492 if (!(info[1].samp == 0x11))
495 if (!(info[2].samp == 0x11))
498 /* the other components are free to use any quant table but they have to
499 * have the same table id */
500 if (info[1].qt != info[2].qt)
508 GST_ELEMENT_ERROR (pay, STREAM, FORMAT,
509 ("Wrong size %u (needed %u).", size, off + 17), (NULL));
514 GST_ELEMENT_ERROR (pay, STREAM, FORMAT,
515 ("Wrong SOF length %u.", sof_size), (NULL));
520 GST_ELEMENT_ERROR (pay, STREAM, FORMAT,
521 ("Wrong precision, expecting 8."), (NULL));
526 GST_ELEMENT_ERROR (pay, STREAM, FORMAT,
527 ("Wrong dimension, size %ux%u", width, height), (NULL));
532 GST_ELEMENT_ERROR (pay, STREAM, FORMAT,
533 ("Wrong number of components"), (NULL));
538 GST_ELEMENT_ERROR (pay, STREAM, FORMAT, ("Invalid component"), (NULL));
544 gst_rtp_jpeg_pay_read_dri (GstRtpJPEGPay * pay, const guint8 * data,
545 guint size, guint * offset, RtpRestartMarkerHeader * dri)
551 /* we need at least 4 bytes for the DRI */
555 dri_size = gst_rtp_jpeg_pay_header_size (data, off);
562 dri->restart_interval = g_htons ((data[off] << 8) | (data[off + 1]));
563 dri->restart_count = g_htons (0xFFFF);
565 return dri->restart_interval > 0;
569 GST_WARNING ("not enough data for DRI");
575 GST_WARNING ("DRI size too small (%u)", dri_size);
582 gst_rtp_jpeg_pay_scan_marker (const guint8 * data, guint size, guint * offset)
584 while ((data[(*offset)++] != JPEG_MARKER) && ((*offset) < size));
586 if (G_UNLIKELY ((*offset) >= size)) {
587 GST_LOG ("found EOI marker");
588 return JPEG_MARKER_EOI;
592 marker = data[*offset];
593 GST_LOG ("found %02x marker at offset %u", marker, *offset);
600 gst_rtp_jpeg_pay_handle_buffer (GstBaseRTPPayload * basepayload,
604 GstClockTime timestamp;
605 GstFlowReturn ret = GST_FLOW_ERROR;
606 RtpJpegHeader jpeg_header;
607 RtpQuantHeader quant_header;
608 RtpRestartMarkerHeader restart_marker_header;
609 RtpQuantTable tables[15] = { {0, NULL}, };
610 CompInfo info[3] = { {0,}, };
611 guint quant_data_size;
616 guint jpeg_header_size = 0;
619 gboolean sos_found, sof_found, dqt_found, dri_found;
621 GstBufferList *list = NULL;
622 GstBufferListIterator *it = NULL;
624 pay = GST_RTP_JPEG_PAY (basepayload);
625 mtu = GST_BASE_RTP_PAYLOAD_MTU (pay);
627 size = GST_BUFFER_SIZE (buffer);
628 data = GST_BUFFER_DATA (buffer);
629 timestamp = GST_BUFFER_TIMESTAMP (buffer);
632 GST_LOG_OBJECT (pay, "got buffer size %u, timestamp %" GST_TIME_FORMAT, size,
633 GST_TIME_ARGS (timestamp));
635 /* parse the jpeg header for 'start of scan' and read quant tables if needed */
641 while (!sos_found && (offset < size)) {
642 GST_LOG_OBJECT (pay, "checking from offset %u", offset);
643 switch (gst_rtp_jpeg_pay_scan_marker (data, size, &offset)) {
644 case JPEG_MARKER_JFIF:
645 case JPEG_MARKER_CMT:
646 case JPEG_MARKER_DHT:
647 GST_LOG_OBJECT (pay, "skipping marker");
648 offset += gst_rtp_jpeg_pay_header_size (data, offset);
650 case JPEG_MARKER_SOF:
651 if (!gst_rtp_jpeg_pay_read_sof (pay, data, size, &offset, info))
655 case JPEG_MARKER_DQT:
656 GST_LOG ("DQT found");
657 offset = gst_rtp_jpeg_pay_read_quant_table (data, size, offset, tables);
660 case JPEG_MARKER_SOS:
662 GST_LOG_OBJECT (pay, "SOS found");
663 jpeg_header_size = offset + gst_rtp_jpeg_pay_header_size (data, offset);
665 case JPEG_MARKER_EOI:
666 GST_WARNING_OBJECT (pay, "EOI reached before SOS!");
668 case JPEG_MARKER_SOI:
669 GST_LOG_OBJECT (pay, "SOI found");
671 case JPEG_MARKER_DRI:
672 GST_LOG_OBJECT (pay, "DRI found");
673 if (gst_rtp_jpeg_pay_read_dri (pay, data, size, &offset,
674 &restart_marker_header))
681 if (!dqt_found || !sof_found)
682 goto unsupported_jpeg;
684 /* by now we should either have negotiated the width/height or the SOF header
685 * should have filled us in */
686 if (pay->width == 0 || pay->height == 0)
689 GST_LOG_OBJECT (pay, "header size %u", jpeg_header_size);
691 size -= jpeg_header_size;
692 data += jpeg_header_size;
698 /* prepare stuff for the jpeg header */
699 jpeg_header.type_spec = 0;
700 jpeg_header.type = pay->type;
701 jpeg_header.q = pay->quant;
702 jpeg_header.width = pay->width;
703 jpeg_header.height = pay->height;
705 /* collect the quant headers sizes */
706 quant_header.mbz = 0;
707 quant_header.precision = 0;
708 quant_header.length = 0;
711 if (pay->quant > 127) {
712 /* for the Y and U component, look up the quant table and its size. quant
713 * tables for U and V should be the same */
714 for (i = 0; i < 2; i++) {
722 qsize = tables[qt].size;
726 quant_header.precision |= (qsize == 64 ? 0 : (1 << i));
727 quant_data_size += qsize;
729 quant_header.length = g_htons (quant_data_size);
730 quant_data_size += sizeof (quant_header);
733 GST_LOG_OBJECT (pay, "quant_data size %u", quant_data_size);
735 if (pay->buffer_list) {
736 list = gst_buffer_list_new ();
737 it = gst_buffer_list_iterate (list);
740 bytes_left = sizeof (jpeg_header) + quant_data_size + size;
743 bytes_left += sizeof (restart_marker_header);
749 guint payload_size = (bytes_left < mtu ? bytes_left : mtu);
751 if (pay->buffer_list) {
754 header_size = sizeof (jpeg_header) + quant_data_size;
756 header_size += sizeof (restart_marker_header);
758 outbuf = gst_rtp_buffer_new_allocate (header_size, 0, 0);
760 outbuf = gst_rtp_buffer_new_allocate (payload_size, 0, 0);
762 GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
764 if (payload_size == bytes_left) {
765 GST_LOG_OBJECT (pay, "last packet of frame");
767 gst_rtp_buffer_set_marker (outbuf, 1);
770 payload = gst_rtp_buffer_get_payload (outbuf);
773 #if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
774 jpeg_header.offset = ((offset & 0x0000FF) << 16) |
775 ((offset & 0xFF0000) >> 16) | (offset & 0x00FF00);
777 jpeg_header.offset = offset;
779 memcpy (payload, &jpeg_header, sizeof (jpeg_header));
780 payload += sizeof (jpeg_header);
781 payload_size -= sizeof (jpeg_header);
784 memcpy (payload, &restart_marker_header, sizeof (restart_marker_header));
785 payload += sizeof (restart_marker_header);
786 payload_size -= sizeof (restart_marker_header);
789 /* only send quant table with first packet */
790 if (G_UNLIKELY (quant_data_size > 0)) {
791 memcpy (payload, &quant_header, sizeof (quant_header));
792 payload += sizeof (quant_header);
794 /* copy the quant tables for luma and chrominance */
795 for (i = 0; i < 2; i++) {
800 qsize = tables[qt].size;
801 memcpy (payload, tables[qt].data, qsize);
803 GST_LOG_OBJECT (pay, "component %d using quant %d, size %d", i, qt,
808 payload_size -= quant_data_size;
809 bytes_left -= quant_data_size;
812 GST_LOG_OBJECT (pay, "sending payload size %d", payload_size);
814 if (pay->buffer_list) {
817 /* create a new buf to hold the payload */
818 paybuf = gst_buffer_create_sub (buffer, jpeg_header_size + offset,
821 /* create a new group to hold the rtp header and the payload */
822 gst_buffer_list_iterator_add_group (it);
823 gst_buffer_list_iterator_add (it, outbuf);
824 gst_buffer_list_iterator_add (it, paybuf);
826 memcpy (payload, data, payload_size);
827 ret = gst_basertppayload_push (basepayload, outbuf);
828 if (ret != GST_FLOW_OK)
832 bytes_left -= payload_size;
833 offset += payload_size;
834 data += payload_size;
838 if (pay->buffer_list) {
839 gst_buffer_list_iterator_free (it);
840 /* push the whole buffer list at once */
841 ret = gst_basertppayload_push_list (basepayload, list);
844 gst_buffer_unref (buffer);
851 GST_ELEMENT_ERROR (pay, STREAM, FORMAT, ("Unsupported JPEG"), (NULL));
852 gst_buffer_unref (buffer);
853 return GST_FLOW_NOT_SUPPORTED;
857 GST_ELEMENT_ERROR (pay, STREAM, FORMAT, ("No size given"), (NULL));
858 gst_buffer_unref (buffer);
859 return GST_FLOW_NOT_NEGOTIATED;
863 /* error was posted */
864 gst_buffer_unref (buffer);
865 return GST_FLOW_ERROR;
869 GST_ELEMENT_ERROR (pay, STREAM, FORMAT, ("Invalid quant tables"), (NULL));
870 gst_buffer_unref (buffer);
871 return GST_FLOW_ERROR;
876 gst_rtp_jpeg_pay_set_property (GObject * object, guint prop_id,
877 const GValue * value, GParamSpec * pspec)
879 GstRtpJPEGPay *rtpjpegpay;
881 rtpjpegpay = GST_RTP_JPEG_PAY (object);
884 case PROP_JPEG_QUALITY:
885 rtpjpegpay->quality = g_value_get_int (value);
886 GST_DEBUG_OBJECT (object, "quality = %d", rtpjpegpay->quality);
889 rtpjpegpay->type = g_value_get_int (value);
890 GST_DEBUG_OBJECT (object, "type = %d", rtpjpegpay->type);
892 case PROP_BUFFER_LIST:
893 rtpjpegpay->buffer_list = g_value_get_boolean (value);
894 GST_DEBUG_OBJECT (object, "buffer_list = %d", rtpjpegpay->buffer_list);
897 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
903 gst_rtp_jpeg_pay_get_property (GObject * object, guint prop_id,
904 GValue * value, GParamSpec * pspec)
906 GstRtpJPEGPay *rtpjpegpay;
908 rtpjpegpay = GST_RTP_JPEG_PAY (object);
911 case PROP_JPEG_QUALITY:
912 g_value_set_int (value, rtpjpegpay->quality);
915 g_value_set_int (value, rtpjpegpay->type);
917 case PROP_BUFFER_LIST:
918 g_value_set_boolean (value, rtpjpegpay->buffer_list);
921 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
927 gst_rtp_jpeg_pay_plugin_init (GstPlugin * plugin)
929 return gst_element_register (plugin, "rtpjpegpay", GST_RANK_SECONDARY,
930 GST_TYPE_RTP_JPEG_PAY);