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-rw-r--r--libavformat/Makefile1
-rw-r--r--libavformat/rtpenc.c4
-rw-r--r--libavformat/rtpenc.h1
-rw-r--r--libavformat/rtpenc_rfc4175.c116
-rw-r--r--libavformat/sdp.c25
-rw-r--r--libavformat/version.h2
6 files changed, 148 insertions, 1 deletions
diff --git a/libavformat/Makefile b/libavformat/Makefile
index 3d6c8ef8f5..a19d2e0c88 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -482,6 +482,7 @@ OBJS-$(CONFIG_RTP_MUXER) += rtp.o \
rtpenc_jpeg.o \
rtpenc_mpv.o \
rtpenc.o \
+ rtpenc_rfc4175.o \
rtpenc_vc2hq.o \
rtpenc_vp8.o \
rtpenc_vp9.o \
diff --git a/libavformat/rtpenc.c b/libavformat/rtpenc.c
index 2a1c176066..4f115cc77e 100644
--- a/libavformat/rtpenc.c
+++ b/libavformat/rtpenc.c
@@ -84,6 +84,7 @@ static int is_supported(enum AVCodecID id)
case AV_CODEC_ID_MJPEG:
case AV_CODEC_ID_SPEEX:
case AV_CODEC_ID_OPUS:
+ case AV_CODEC_ID_RAWVIDEO:
return 1;
default:
return 0;
@@ -619,6 +620,9 @@ static int rtp_write_packet(AVFormatContext *s1, AVPacket *pkt)
case AV_CODEC_ID_MJPEG:
ff_rtp_send_jpeg(s1, pkt->data, size);
break;
+ case AV_CODEC_ID_RAWVIDEO:
+ ff_rtp_send_raw_rfc4175 (s1, pkt->data, size);
+ break;
case AV_CODEC_ID_OPUS:
if (size > s->max_payload_size) {
av_log(s1, AV_LOG_ERROR,
diff --git a/libavformat/rtpenc.h b/libavformat/rtpenc.h
index 62dc9ab10a..70ea85bf3f 100644
--- a/libavformat/rtpenc.h
+++ b/libavformat/rtpenc.h
@@ -95,6 +95,7 @@ void ff_rtp_send_vc2hq(AVFormatContext *s1, const uint8_t *buf, int size, int in
void ff_rtp_send_vp8(AVFormatContext *s1, const uint8_t *buff, int size);
void ff_rtp_send_vp9(AVFormatContext *s1, const uint8_t *buff, int size);
void ff_rtp_send_jpeg(AVFormatContext *s1, const uint8_t *buff, int size);
+void ff_rtp_send_raw_rfc4175(AVFormatContext *s1, const uint8_t *buf, int size);
const uint8_t *ff_h263_find_resync_marker_reverse(const uint8_t *av_restrict start,
const uint8_t *av_restrict end);
diff --git a/libavformat/rtpenc_rfc4175.c b/libavformat/rtpenc_rfc4175.c
new file mode 100644
index 0000000000..6fa34b64cb
--- /dev/null
+++ b/libavformat/rtpenc_rfc4175.c
@@ -0,0 +1,116 @@
+/*
+ * RTP Packetization of RAW video (RFC4175)
+ * Copyright (c) 2021 Limin Wang
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "avformat.h"
+#include "rtpenc.h"
+
+void ff_rtp_send_raw_rfc4175(AVFormatContext *s1, const uint8_t *buf, int size)
+{
+ RTPMuxContext *s = s1->priv_data;
+ int width = s1->streams[0]->codecpar->width;
+ int height = s1->streams[0]->codecpar->height;
+ int xinc, yinc, pgroup;
+ int field = 0;
+ int i = 0;
+ int offset = 0;
+
+ s->timestamp = s->cur_timestamp;
+ switch (s1->streams[0]->codecpar->format) {
+ case AV_PIX_FMT_UYVY422:
+ xinc = yinc = 2;
+ pgroup = 4;
+ break;
+ case AV_PIX_FMT_YUV420P:
+ xinc = yinc = 4;
+ pgroup = 6;
+ break;
+ default:
+ return;
+ }
+
+ while (i < height) {
+ int left = s->max_payload_size;
+ uint8_t *dest = s->buf;
+ uint8_t *headers;
+ const int head_size = 6;
+ int next_line;
+ int length, cont, pixels;
+
+ /* Extended Sequence Number */
+ *dest++ = 0;
+ *dest++ = 0;
+ left -= 2;
+
+ headers = dest;
+ do {
+ pixels = width * xinc - offset;
+ length = (pixels * pgroup) / xinc;
+
+ left -= head_size;
+ if (left >= length) {
+ next_line = 1;
+ } else {
+ pixels = (left / pgroup) * xinc;
+ length = (pixels * pgroup) / xinc;
+ next_line = 0;
+ }
+ left -= length;
+
+ /* Length */
+ *dest++ = (length >> 8) & 0xff;
+ *dest++ = length & 0xff;
+
+ /* Line No */
+ *dest++ = ((i >> 8) & 0x7f) | ((field << 7) & 0x80);
+ *dest++ = i & 0xff;
+ if (next_line) i += yinc;
+
+ cont = (left > (head_size + pgroup) && i < height) ? 0x80 : 0x00;
+ /* Offset and Continuation marker */
+ *dest++ = ((offset >> 8) & 0x7f) | cont;
+ *dest++ = offset & 0xff;
+
+ if (next_line)
+ offset = 0;
+ else
+ offset += pixels;
+ } while (cont);
+
+ do {
+ int l_line;
+ int l_off;
+ int copy_offset;
+
+ length = (headers[0] << 8) | headers[1];
+ l_line = ((headers[2] & 0x7f) << 8) | headers[3];
+ l_off = ((headers[4] & 0x7f) << 8) | headers[5];
+ cont = headers[4] & 0x80;
+ headers += head_size;
+
+ copy_offset = (l_line * width + l_off) * pgroup / xinc;
+ if (copy_offset + length > size)
+ break;
+ memcpy (dest, buf + copy_offset, length);
+ dest += length;
+ } while (cont);
+
+ ff_rtp_send_data (s1, s->buf, s->max_payload_size - left, i >= height);
+ }
+}
diff --git a/libavformat/sdp.c b/libavformat/sdp.c
index 1200e553f9..cc04d70c0d 100644
--- a/libavformat/sdp.c
+++ b/libavformat/sdp.c
@@ -660,6 +660,31 @@ static char *sdp_write_media_attributes(char *buff, int size, AVStream *st, int
p->width, p->height, pix_fmt, config);
break;
}
+ case AV_CODEC_ID_RAWVIDEO: {
+ const char *pix_fmt;
+ int bit_depth = 8;
+
+ switch (p->format) {
+ case AV_PIX_FMT_UYVY422:
+ pix_fmt = "YCbCr-4:2:2";
+ break;
+ case AV_PIX_FMT_YUV420P:
+ pix_fmt = "YCbCr-4:2:0";
+ break;
+ default:
+ av_log(fmt, AV_LOG_ERROR, "Unsupported pixel format.\n");
+ return NULL;
+ }
+
+ av_strlcatf(buff, size, "a=rtpmap:%d raw/90000\r\n"
+ "a=fmtp:%d sampling=%s; "
+ "width=%d; height=%d; "
+ "depth=%d\r\n",
+ payload_type, payload_type,
+ pix_fmt, p->width, p->height, bit_depth);
+ break;
+ }
+
case AV_CODEC_ID_VP8:
av_strlcatf(buff, size, "a=rtpmap:%d VP8/90000\r\n",
payload_type);
diff --git a/libavformat/version.h b/libavformat/version.h
index ae2b873197..0705ee4112 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -33,7 +33,7 @@
// Also please add any ticket numbers that you believe might be affected here
#define LIBAVFORMAT_VERSION_MAJOR 59
#define LIBAVFORMAT_VERSION_MINOR 9
-#define LIBAVFORMAT_VERSION_MICRO 101
+#define LIBAVFORMAT_VERSION_MICRO 102
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-06 04:03:03 +0000