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
92 * @JPEG_MARKER_H264: H264 marker
94 * Identifers for markers in JPEG header
99 JPEG_MARKER_SOI = 0xD8,
100 JPEG_MARKER_JFIF = 0xE0,
101 JPEG_MARKER_CMT = 0xFE,
102 JPEG_MARKER_DQT = 0xDB,
103 JPEG_MARKER_SOF = 0xC0,
104 JPEG_MARKER_DHT = 0xC4,
105 JPEG_MARKER_SOS = 0xDA,
106 JPEG_MARKER_EOI = 0xD9,
107 JPEG_MARKER_DRI = 0xDD,
108 JPEG_MARKER_H264 = 0xE4
111 #define DEFAULT_JPEG_QUANT 255
113 #define DEFAULT_JPEG_QUALITY 255
114 #define DEFAULT_JPEG_TYPE 1
129 Q_TABLE_MAX /* only support for two tables at the moment */
132 typedef struct _RtpJpegHeader RtpJpegHeader;
136 * @type_spec: type specific
137 * @offset: fragment offset
139 * @q: quantization table for this frame
140 * @width: width of image in 8-pixel multiples
141 * @height: height of image in 8-pixel multiples
144 * 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
145 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
146 * | Type-specific | Fragment Offset |
147 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
148 * | Type | Q | Width | Height |
149 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
151 struct _RtpJpegHeader
164 * @precision: specify size of quantization tables
165 * @length: length of quantization data
168 * 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
169 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
170 * | MBZ | Precision | Length |
171 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
172 * | Quantization Table Data |
174 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
190 * RtpRestartMarkerHeader:
191 * @restartInterval: number of MCUs that appear between restart markers
192 * @restartFirstLastCount: a combination of the first packet mark in the chunk
193 * last packet mark in the chunk and the position of the
194 * first restart interval in the current "chunk"
197 * 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
198 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
199 * | Restart Interval |F|L| Restart Count |
200 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
202 * The restart marker header is implemented according to the following
203 * methodology specified in section 3.1.7 of rfc2435.txt.
205 * "If the restart intervals in a frame are not guaranteed to be aligned
206 * with packet boundaries, the F (first) and L (last) bits MUST be set
207 * to 1 and the Restart Count MUST be set to 0x3FFF. This indicates
208 * that a receiver MUST reassemble the entire frame before decoding it."
214 guint16 restart_interval;
215 guint16 restart_count;
216 } RtpRestartMarkerHeader;
225 /* FIXME: restart marker header currently unsupported */
227 static void gst_rtp_jpeg_pay_set_property (GObject * object, guint prop_id,
228 const GValue * value, GParamSpec * pspec);
230 static void gst_rtp_jpeg_pay_get_property (GObject * object, guint prop_id,
231 GValue * value, GParamSpec * pspec);
233 static gboolean gst_rtp_jpeg_pay_setcaps (GstBaseRTPPayload * basepayload,
236 static GstFlowReturn gst_rtp_jpeg_pay_handle_buffer (GstBaseRTPPayload * pad,
239 GST_BOILERPLATE (GstRtpJPEGPay, gst_rtp_jpeg_pay, GstBaseRTPPayload,
240 GST_TYPE_BASE_RTP_PAYLOAD);
243 gst_rtp_jpeg_pay_base_init (gpointer klass)
245 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
247 gst_element_class_add_static_pad_template (element_class,
248 &gst_rtp_jpeg_pay_src_template);
249 gst_element_class_add_static_pad_template (element_class,
250 &gst_rtp_jpeg_pay_sink_template);
252 gst_element_class_set_details_simple (element_class, "RTP JPEG payloader",
253 "Codec/Payloader/Network/RTP",
254 "Payload-encodes JPEG pictures into RTP packets (RFC 2435)",
255 "Axis Communications <dev-gstreamer@axis.com>");
259 gst_rtp_jpeg_pay_class_init (GstRtpJPEGPayClass * klass)
261 GObjectClass *gobject_class;
262 GstBaseRTPPayloadClass *gstbasertppayload_class;
264 gobject_class = (GObjectClass *) klass;
265 gstbasertppayload_class = (GstBaseRTPPayloadClass *) klass;
267 gobject_class->set_property = gst_rtp_jpeg_pay_set_property;
268 gobject_class->get_property = gst_rtp_jpeg_pay_get_property;
270 gstbasertppayload_class->set_caps = gst_rtp_jpeg_pay_setcaps;
271 gstbasertppayload_class->handle_buffer = gst_rtp_jpeg_pay_handle_buffer;
273 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_JPEG_QUALITY,
274 g_param_spec_int ("quality", "Quality",
275 "Quality factor on JPEG data (unused)", 0, 255, 255,
276 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
278 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_JPEG_TYPE,
279 g_param_spec_int ("type", "Type",
280 "Default JPEG Type, overwritten by SOF when present", 0, 255,
281 DEFAULT_JPEG_TYPE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
283 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BUFFER_LIST,
284 g_param_spec_boolean ("buffer-list", "Buffer List",
286 DEFAULT_BUFFER_LIST, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
288 GST_DEBUG_CATEGORY_INIT (rtpjpegpay_debug, "rtpjpegpay", 0,
289 "Motion JPEG RTP Payloader");
293 gst_rtp_jpeg_pay_init (GstRtpJPEGPay * pay, GstRtpJPEGPayClass * klass)
295 pay->quality = DEFAULT_JPEG_QUALITY;
296 pay->quant = DEFAULT_JPEG_QUANT;
297 pay->type = DEFAULT_JPEG_TYPE;
298 pay->buffer_list = DEFAULT_BUFFER_LIST;
302 gst_rtp_jpeg_pay_setcaps (GstBaseRTPPayload * basepayload, GstCaps * caps)
304 GstStructure *caps_structure = gst_caps_get_structure (caps, 0);
307 gint width = 0, height = 0;
309 pay = GST_RTP_JPEG_PAY (basepayload);
311 /* these properties are not mandatory, we can get them from the SOF, if there
313 if (gst_structure_get_int (caps_structure, "height", &height)) {
314 if (height <= 0 || height > 2040)
315 goto invalid_dimension;
317 pay->height = GST_ROUND_UP_8 (height) / 8;
319 if (gst_structure_get_int (caps_structure, "width", &width)) {
320 if (width <= 0 || width > 2040)
321 goto invalid_dimension;
323 pay->width = GST_ROUND_UP_8 (width) / 8;
325 gst_basertppayload_set_options (basepayload, "video", TRUE, "JPEG", 90000);
326 res = gst_basertppayload_set_outcaps (basepayload, NULL);
333 GST_ERROR_OBJECT (pay, "Invalid width/height from caps");
339 gst_rtp_jpeg_pay_header_size (const guint8 * data, guint offset)
341 return data[offset] << 8 | data[offset + 1];
345 gst_rtp_jpeg_pay_read_quant_table (const guint8 * data, guint size,
346 guint offset, RtpQuantTable tables[])
348 guint quant_size, tab_size;
352 if (offset + 2 > size)
355 quant_size = gst_rtp_jpeg_pay_header_size (data, offset);
357 goto small_quant_size;
359 /* clamp to available data */
360 if (offset + quant_size > size)
361 quant_size = size - offset;
366 while (quant_size > 0) {
367 /* not enough to read the id */
368 if (offset + 1 > size)
371 id = data[offset] & 0x0f;
373 /* invalid id received - corrupt data */
376 prec = (data[offset] & 0xf0) >> 4;
382 /* there is not enough for the table */
383 if (quant_size < tab_size + 1)
386 GST_LOG ("read quant table %d, tab_size %d, prec %02x", id, tab_size, prec);
388 tables[id].size = tab_size;
389 tables[id].data = &data[offset + 1];
392 quant_size -= tab_size;
396 return offset + quant_size;
401 GST_WARNING ("not enough data");
406 GST_WARNING ("quant_size too small (%u < 2)", quant_size);
411 GST_WARNING ("invalid id");
416 GST_WARNING ("not enough data for table (%u < %u)", quant_size,
423 gst_rtp_jpeg_pay_read_sof (GstRtpJPEGPay * pay, const guint8 * data,
424 guint size, guint * offset, CompInfo info[])
427 guint width, height, infolen;
433 /* we need at least 17 bytes for the SOF */
437 sof_size = gst_rtp_jpeg_pay_header_size (data, off);
446 /* precision should be 8 */
447 if (data[off++] != 8)
450 /* read dimensions */
451 height = data[off] << 8 | data[off + 1];
452 width = data[off + 2] << 8 | data[off + 3];
455 GST_LOG_OBJECT (pay, "got dimensions %ux%u", height, width);
457 if (height == 0 || height > 2040)
458 goto invalid_dimension;
459 if (width == 0 || width > 2040)
460 goto invalid_dimension;
462 pay->height = GST_ROUND_UP_8 (height) / 8;
463 pay->width = GST_ROUND_UP_8 (width) / 8;
465 /* we only support 3 components */
466 if (data[off++] != 3)
470 for (i = 0; i < 3; i++) {
471 elem.id = data[off++];
472 elem.samp = data[off++];
473 elem.qt = data[off++];
474 GST_LOG_OBJECT (pay, "got comp %d, samp %02x, qt %d", elem.id, elem.samp,
476 /* insertion sort from the last element to the first */
477 for (j = infolen; j > 1; j--) {
478 if (G_LIKELY (info[j - 1].id < elem.id))
480 info[j] = info[j - 1];
486 /* see that the components are supported */
487 if (info[0].samp == 0x21)
489 else if (info[0].samp == 0x22)
494 if (!(info[1].samp == 0x11))
497 if (!(info[2].samp == 0x11))
500 /* the other components are free to use any quant table but they have to
501 * have the same table id */
502 if (info[1].qt != info[2].qt)
510 GST_ELEMENT_ERROR (pay, STREAM, FORMAT,
511 ("Wrong size %u (needed %u).", size, off + 17), (NULL));
516 GST_ELEMENT_ERROR (pay, STREAM, FORMAT,
517 ("Wrong SOF length %u.", sof_size), (NULL));
522 GST_ELEMENT_ERROR (pay, STREAM, FORMAT,
523 ("Wrong precision, expecting 8."), (NULL));
528 GST_ELEMENT_ERROR (pay, STREAM, FORMAT,
529 ("Wrong dimension, size %ux%u", width, height), (NULL));
534 GST_ELEMENT_ERROR (pay, STREAM, FORMAT,
535 ("Wrong number of components"), (NULL));
540 GST_ELEMENT_ERROR (pay, STREAM, FORMAT, ("Invalid component"), (NULL));
546 gst_rtp_jpeg_pay_read_dri (GstRtpJPEGPay * pay, const guint8 * data,
547 guint size, guint * offset, RtpRestartMarkerHeader * dri)
553 /* we need at least 4 bytes for the DRI */
557 dri_size = gst_rtp_jpeg_pay_header_size (data, off);
564 dri->restart_interval = g_htons ((data[off] << 8) | (data[off + 1]));
565 dri->restart_count = g_htons (0xFFFF);
567 return dri->restart_interval > 0;
571 GST_WARNING ("not enough data for DRI");
577 GST_WARNING ("DRI size too small (%u)", dri_size);
584 gst_rtp_jpeg_pay_scan_marker (const guint8 * data, guint size, guint * offset)
586 while ((data[(*offset)++] != JPEG_MARKER) && ((*offset) < size));
588 if (G_UNLIKELY ((*offset) >= size)) {
589 GST_LOG ("found EOI marker");
590 return JPEG_MARKER_EOI;
594 marker = data[*offset];
595 GST_LOG ("found 0x%02x marker at offset %u", marker, *offset);
602 gst_rtp_jpeg_pay_handle_buffer (GstBaseRTPPayload * basepayload,
606 GstClockTime timestamp;
607 GstFlowReturn ret = GST_FLOW_ERROR;
608 RtpJpegHeader jpeg_header;
609 RtpQuantHeader quant_header;
610 RtpRestartMarkerHeader restart_marker_header;
611 RtpQuantTable tables[15] = { {0, NULL}, };
612 CompInfo info[3] = { {0,}, };
613 guint quant_data_size;
618 guint jpeg_header_size = 0;
621 gboolean sos_found, sof_found, dqt_found, dri_found;
623 GstBufferList *list = NULL;
624 GstBufferListIterator *it = NULL;
626 pay = GST_RTP_JPEG_PAY (basepayload);
627 mtu = GST_BASE_RTP_PAYLOAD_MTU (pay);
629 size = GST_BUFFER_SIZE (buffer);
630 data = GST_BUFFER_DATA (buffer);
631 timestamp = GST_BUFFER_TIMESTAMP (buffer);
634 GST_LOG_OBJECT (pay, "got buffer size %u, timestamp %" GST_TIME_FORMAT, size,
635 GST_TIME_ARGS (timestamp));
637 /* parse the jpeg header for 'start of scan' and read quant tables if needed */
643 while (!sos_found && (offset < size)) {
644 GST_LOG_OBJECT (pay, "checking from offset %u", offset);
645 switch (gst_rtp_jpeg_pay_scan_marker (data, size, &offset)) {
646 case JPEG_MARKER_JFIF:
647 case JPEG_MARKER_CMT:
648 case JPEG_MARKER_DHT:
649 case JPEG_MARKER_H264:
650 GST_LOG_OBJECT (pay, "skipping marker");
651 offset += gst_rtp_jpeg_pay_header_size (data, offset);
653 case JPEG_MARKER_SOF:
654 if (!gst_rtp_jpeg_pay_read_sof (pay, data, size, &offset, info))
658 case JPEG_MARKER_DQT:
659 GST_LOG ("DQT found");
660 offset = gst_rtp_jpeg_pay_read_quant_table (data, size, offset, tables);
663 case JPEG_MARKER_SOS:
665 GST_LOG_OBJECT (pay, "SOS found");
666 jpeg_header_size = offset + gst_rtp_jpeg_pay_header_size (data, offset);
668 case JPEG_MARKER_EOI:
669 GST_WARNING_OBJECT (pay, "EOI reached before SOS!");
671 case JPEG_MARKER_SOI:
672 GST_LOG_OBJECT (pay, "SOI found");
674 case JPEG_MARKER_DRI:
675 GST_LOG_OBJECT (pay, "DRI found");
676 if (gst_rtp_jpeg_pay_read_dri (pay, data, size, &offset,
677 &restart_marker_header))
684 if (!dqt_found || !sof_found)
685 goto unsupported_jpeg;
687 /* by now we should either have negotiated the width/height or the SOF header
688 * should have filled us in */
689 if (pay->width == 0 || pay->height == 0)
692 GST_LOG_OBJECT (pay, "header size %u", jpeg_header_size);
694 size -= jpeg_header_size;
695 data += jpeg_header_size;
701 /* prepare stuff for the jpeg header */
702 jpeg_header.type_spec = 0;
703 jpeg_header.type = pay->type;
704 jpeg_header.q = pay->quant;
705 jpeg_header.width = pay->width;
706 jpeg_header.height = pay->height;
708 /* collect the quant headers sizes */
709 quant_header.mbz = 0;
710 quant_header.precision = 0;
711 quant_header.length = 0;
714 if (pay->quant > 127) {
715 /* for the Y and U component, look up the quant table and its size. quant
716 * tables for U and V should be the same */
717 for (i = 0; i < 2; i++) {
722 if (qt >= G_N_ELEMENTS (tables))
725 qsize = tables[qt].size;
729 quant_header.precision |= (qsize == 64 ? 0 : (1 << i));
730 quant_data_size += qsize;
732 quant_header.length = g_htons (quant_data_size);
733 quant_data_size += sizeof (quant_header);
736 GST_LOG_OBJECT (pay, "quant_data size %u", quant_data_size);
738 if (pay->buffer_list) {
739 list = gst_buffer_list_new ();
740 it = gst_buffer_list_iterate (list);
743 bytes_left = sizeof (jpeg_header) + quant_data_size + size;
746 bytes_left += sizeof (restart_marker_header);
752 guint payload_size = (bytes_left < mtu ? bytes_left : mtu);
754 if (pay->buffer_list) {
757 header_size = sizeof (jpeg_header) + quant_data_size;
759 header_size += sizeof (restart_marker_header);
761 outbuf = gst_rtp_buffer_new_allocate (header_size, 0, 0);
763 outbuf = gst_rtp_buffer_new_allocate (payload_size, 0, 0);
765 GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
767 if (payload_size == bytes_left) {
768 GST_LOG_OBJECT (pay, "last packet of frame");
770 gst_rtp_buffer_set_marker (outbuf, 1);
773 payload = gst_rtp_buffer_get_payload (outbuf);
776 #if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
777 jpeg_header.offset = ((offset & 0x0000FF) << 16) |
778 ((offset & 0xFF0000) >> 16) | (offset & 0x00FF00);
780 jpeg_header.offset = offset;
782 memcpy (payload, &jpeg_header, sizeof (jpeg_header));
783 payload += sizeof (jpeg_header);
784 payload_size -= sizeof (jpeg_header);
787 memcpy (payload, &restart_marker_header, sizeof (restart_marker_header));
788 payload += sizeof (restart_marker_header);
789 payload_size -= sizeof (restart_marker_header);
792 /* only send quant table with first packet */
793 if (G_UNLIKELY (quant_data_size > 0)) {
794 memcpy (payload, &quant_header, sizeof (quant_header));
795 payload += sizeof (quant_header);
797 /* copy the quant tables for luma and chrominance */
798 for (i = 0; i < 2; i++) {
803 qsize = tables[qt].size;
804 memcpy (payload, tables[qt].data, qsize);
806 GST_LOG_OBJECT (pay, "component %d using quant %d, size %d", i, qt,
811 payload_size -= quant_data_size;
812 bytes_left -= quant_data_size;
815 GST_LOG_OBJECT (pay, "sending payload size %d", payload_size);
817 if (pay->buffer_list) {
820 /* create a new buf to hold the payload */
821 paybuf = gst_buffer_create_sub (buffer, jpeg_header_size + offset,
824 /* create a new group to hold the rtp header and the payload */
825 gst_buffer_list_iterator_add_group (it);
826 gst_buffer_list_iterator_add (it, outbuf);
827 gst_buffer_list_iterator_add (it, paybuf);
829 memcpy (payload, data, payload_size);
830 ret = gst_basertppayload_push (basepayload, outbuf);
831 if (ret != GST_FLOW_OK)
835 bytes_left -= payload_size;
836 offset += payload_size;
837 data += payload_size;
841 if (pay->buffer_list) {
842 gst_buffer_list_iterator_free (it);
843 /* push the whole buffer list at once */
844 ret = gst_basertppayload_push_list (basepayload, list);
847 gst_buffer_unref (buffer);
854 GST_ELEMENT_ERROR (pay, STREAM, FORMAT, ("Unsupported JPEG"), (NULL));
855 gst_buffer_unref (buffer);
856 return GST_FLOW_NOT_SUPPORTED;
860 GST_ELEMENT_ERROR (pay, STREAM, FORMAT, ("No size given"), (NULL));
861 gst_buffer_unref (buffer);
862 return GST_FLOW_NOT_NEGOTIATED;
866 /* error was posted */
867 gst_buffer_unref (buffer);
868 return GST_FLOW_ERROR;
872 GST_ELEMENT_ERROR (pay, STREAM, FORMAT, ("Invalid quant tables"), (NULL));
873 gst_buffer_unref (buffer);
874 return GST_FLOW_ERROR;
879 gst_rtp_jpeg_pay_set_property (GObject * object, guint prop_id,
880 const GValue * value, GParamSpec * pspec)
882 GstRtpJPEGPay *rtpjpegpay;
884 rtpjpegpay = GST_RTP_JPEG_PAY (object);
887 case PROP_JPEG_QUALITY:
888 rtpjpegpay->quality = g_value_get_int (value);
889 GST_DEBUG_OBJECT (object, "quality = %d", rtpjpegpay->quality);
892 rtpjpegpay->type = g_value_get_int (value);
893 GST_DEBUG_OBJECT (object, "type = %d", rtpjpegpay->type);
895 case PROP_BUFFER_LIST:
896 rtpjpegpay->buffer_list = g_value_get_boolean (value);
897 GST_DEBUG_OBJECT (object, "buffer_list = %d", rtpjpegpay->buffer_list);
900 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
906 gst_rtp_jpeg_pay_get_property (GObject * object, guint prop_id,
907 GValue * value, GParamSpec * pspec)
909 GstRtpJPEGPay *rtpjpegpay;
911 rtpjpegpay = GST_RTP_JPEG_PAY (object);
914 case PROP_JPEG_QUALITY:
915 g_value_set_int (value, rtpjpegpay->quality);
918 g_value_set_int (value, rtpjpegpay->type);
920 case PROP_BUFFER_LIST:
921 g_value_set_boolean (value, rtpjpegpay->buffer_list);
924 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
930 gst_rtp_jpeg_pay_plugin_init (GstPlugin * plugin)
932 return gst_element_register (plugin, "rtpjpegpay", GST_RANK_SECONDARY,
933 GST_TYPE_RTP_JPEG_PAY);