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-rw-r--r--Changelog1
-rwxr-xr-xconfigure2
-rw-r--r--libavformat/Makefile1
-rw-r--r--libavformat/avformat.h2
-rw-r--r--libavformat/rtpdec.c5
-rw-r--r--libavformat/rtpdec_formats.h4
-rw-r--r--libavformat/rtpdec_qt.c255
7 files changed, 268 insertions, 2 deletions
diff --git a/Changelog b/Changelog
index 13f53a5732..b2c72bc096 100644
--- a/Changelog
+++ b/Changelog
@@ -43,6 +43,7 @@ version <next>:
- yadif filter
- blackframe filter
- Demuxer for Leitch/Harris' VR native stream format (LXF)
+- RTP depacketization of the X-QT QuickTime format
version 0.6:
diff --git a/configure b/configure
index 0b7af0195c..7cb843f56d 100755
--- a/configure
+++ b/configure
@@ -1363,7 +1363,7 @@ ogg_demuxer_select="golomb"
psp_muxer_select="mov_muxer"
rtsp_demuxer_select="http_protocol sdp_demuxer"
rtsp_muxer_select="rtp_muxer http_protocol sdp_demuxer"
-sdp_demuxer_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer"
+sdp_demuxer_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
spdif_muxer_select="aac_parser"
tg2_muxer_select="mov_muxer"
tgp_muxer_select="mov_muxer"
diff --git a/libavformat/Makefile b/libavformat/Makefile
index b3ae72a3d9..1f1c576a08 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -240,6 +240,7 @@ OBJS-$(CONFIG_SDP_DEMUXER) += rtsp.o \
rtpdec_latm.o \
rtpdec_mpeg4.o \
rtpdec_qdm2.o \
+ rtpdec_qt.o \
rtpdec_svq3.o \
rtpdec_vp8.o \
rtpdec_xiph.o
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 362a0561da..feb285bdb8 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -22,7 +22,7 @@
#define AVFORMAT_AVFORMAT_H
#define LIBAVFORMAT_VERSION_MAJOR 52
-#define LIBAVFORMAT_VERSION_MINOR 79
+#define LIBAVFORMAT_VERSION_MINOR 80
#define LIBAVFORMAT_VERSION_MICRO 0
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
diff --git a/libavformat/rtpdec.c b/libavformat/rtpdec.c
index d349ce79b2..8c8d1fa793 100644
--- a/libavformat/rtpdec.c
+++ b/libavformat/rtpdec.c
@@ -70,6 +70,11 @@ void av_register_rtp_dynamic_payload_handlers(void)
ff_register_dynamic_payload_handler(&ff_ms_rtp_asf_pfv_handler);
ff_register_dynamic_payload_handler(&ff_ms_rtp_asf_pfa_handler);
+
+ ff_register_dynamic_payload_handler(&ff_qt_rtp_aud_handler);
+ ff_register_dynamic_payload_handler(&ff_qt_rtp_vid_handler);
+ ff_register_dynamic_payload_handler(&ff_quicktime_rtp_aud_handler);
+ ff_register_dynamic_payload_handler(&ff_quicktime_rtp_vid_handler);
}
static int rtcp_parse_packet(RTPDemuxContext *s, const unsigned char *buf, int len)
diff --git a/libavformat/rtpdec_formats.h b/libavformat/rtpdec_formats.h
index 4b30879ecb..aab189eaca 100644
--- a/libavformat/rtpdec_formats.h
+++ b/libavformat/rtpdec_formats.h
@@ -42,6 +42,10 @@ extern RTPDynamicProtocolHandler ff_mpeg4_generic_dynamic_handler;
extern RTPDynamicProtocolHandler ff_ms_rtp_asf_pfa_handler;
extern RTPDynamicProtocolHandler ff_ms_rtp_asf_pfv_handler;
extern RTPDynamicProtocolHandler ff_qdm2_dynamic_handler;
+extern RTPDynamicProtocolHandler ff_qt_rtp_aud_handler;
+extern RTPDynamicProtocolHandler ff_qt_rtp_vid_handler;
+extern RTPDynamicProtocolHandler ff_quicktime_rtp_aud_handler;
+extern RTPDynamicProtocolHandler ff_quicktime_rtp_vid_handler;
extern RTPDynamicProtocolHandler ff_svq3_dynamic_handler;
extern RTPDynamicProtocolHandler ff_theora_dynamic_handler;
extern RTPDynamicProtocolHandler ff_vorbis_dynamic_handler;
diff --git a/libavformat/rtpdec_qt.c b/libavformat/rtpdec_qt.c
new file mode 100644
index 0000000000..7dfc71fd66
--- /dev/null
+++ b/libavformat/rtpdec_qt.c
@@ -0,0 +1,255 @@
+/*
+ * RTP/Quicktime support.
+ * Copyright (c) 2009 Ronald S. Bultje
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * @brief Quicktime-style RTP support
+ * @author Ronald S. Bultje <rbultje@ronald.bitfreak.net>
+ */
+
+#include "avformat.h"
+#include "rtp.h"
+#include "rtpdec.h"
+#include "isom.h"
+#include "libavcodec/get_bits.h"
+
+struct PayloadContext {
+ AVPacket pkt;
+ int bytes_per_frame, remaining;
+ uint32_t timestamp;
+};
+
+static int qt_rtp_parse_packet(AVFormatContext *s, PayloadContext *qt,
+ AVStream *st, AVPacket *pkt,
+ uint32_t *timestamp, const uint8_t *buf,
+ int len, int flags)
+{
+ ByteIOContext pb;
+ GetBitContext gb;
+ int packing_scheme, has_payload_desc, has_packet_info, alen,
+ has_marker_bit = flags & RTP_FLAG_MARKER;
+
+ if (qt->remaining) {
+ int num = qt->pkt.size / qt->bytes_per_frame;
+
+ if (av_new_packet(pkt, qt->bytes_per_frame))
+ return AVERROR(ENOMEM);
+ pkt->stream_index = st->index;
+ pkt->flags = qt->pkt.flags;
+ memcpy(pkt->data,
+ &qt->pkt.data[(num - qt->remaining) * qt->bytes_per_frame],
+ qt->bytes_per_frame);
+ if (--qt->remaining == 0) {
+ av_freep(&qt->pkt.data);
+ qt->pkt.size = 0;
+ }
+ return qt->remaining > 0;
+ }
+
+ /**
+ * The RTP payload is described in:
+ * http://developer.apple.com/quicktime/icefloe/dispatch026.html
+ */
+ init_get_bits(&gb, buf, len << 3);
+ init_put_byte(&pb, buf, len, 0, NULL, NULL, NULL, NULL);
+
+ if (len < 4)
+ return AVERROR_INVALIDDATA;
+
+ skip_bits(&gb, 4); // version
+ if ((packing_scheme = get_bits(&gb, 2)) == 0)
+ return AVERROR_INVALIDDATA;
+ if (get_bits1(&gb))
+ flags |= RTP_FLAG_KEY;
+ has_payload_desc = get_bits1(&gb);
+ has_packet_info = get_bits1(&gb);
+ skip_bits(&gb, 23); // reserved:7, cache payload info:1, payload ID:15
+
+ if (has_payload_desc) {
+ int data_len, pos, is_start, is_finish;
+ uint32_t tag;
+
+ pos = get_bits_count(&gb) >> 3;
+ if (pos + 12 > len)
+ return AVERROR_INVALIDDATA;
+
+ skip_bits(&gb, 2); // has non-I frames:1, is sparse:1
+ is_start = get_bits1(&gb);
+ is_finish = get_bits1(&gb);
+ if (!is_start || !is_finish) {
+ av_log_missing_feature(s, "RTP-X-QT with payload description "
+ "split over several packets", 1);
+ return AVERROR_NOTSUPP;
+ }
+ skip_bits(&gb, 12); // reserved
+ data_len = get_bits(&gb, 16);
+
+ url_fseek(&pb, pos + 4, SEEK_SET);
+ tag = get_le32(&pb);
+ if ((st->codec->codec_type == CODEC_TYPE_VIDEO &&
+ tag != MKTAG('v','i','d','e')) ||
+ (st->codec->codec_type == CODEC_TYPE_AUDIO &&
+ tag != MKTAG('s','o','u','n')))
+ return AVERROR_INVALIDDATA;
+ av_set_pts_info(st, 32, 1, get_be32(&pb));
+
+ if (pos + data_len > len)
+ return AVERROR_INVALIDDATA;
+ /* TLVs */
+ while (url_ftell(&pb) + 4 < pos + data_len) {
+ int tlv_len = get_be16(&pb);
+ tag = get_le16(&pb);
+ if (url_ftell(&pb) + tlv_len > pos + data_len)
+ return AVERROR_INVALIDDATA;
+
+#define MKTAG16(a,b) MKTAG(a,b,0,0)
+ switch (tag) {
+ case MKTAG16('s','d'): {
+ MOVStreamContext *msc;
+ void *priv_data = st->priv_data;
+ int nb_streams = s->nb_streams;
+ MOVContext *mc = av_mallocz(sizeof(*mc));
+ if (!mc)
+ return AVERROR(ENOMEM);
+ mc->fc = s;
+ st->priv_data = msc = av_mallocz(sizeof(MOVStreamContext));
+ if (!msc) {
+ av_free(mc);
+ st->priv_data = priv_data;
+ return AVERROR(ENOMEM);
+ }
+ /* ff_mov_read_stsd_entries updates stream s->nb_streams-1,
+ * so set it temporarily to indicate which stream to update. */
+ s->nb_streams = st->index + 1;
+ ff_mov_read_stsd_entries(mc, &pb, 1);
+ qt->bytes_per_frame = msc->bytes_per_frame;
+ av_free(msc);
+ av_free(mc);
+ st->priv_data = priv_data;
+ s->nb_streams = nb_streams;
+ break;
+ }
+ default:
+ url_fskip(&pb, tlv_len);
+ break;
+ }
+ }
+
+ /* 32-bit alignment */
+ url_fskip(&pb, ((url_ftell(&pb) + 3) & ~3) - url_ftell(&pb));
+ } else
+ url_fseek(&pb, 4, SEEK_SET);
+
+ if (has_packet_info) {
+ av_log_missing_feature(s, "RTP-X-QT with packet specific info", 1);
+ return AVERROR_NOTSUPP;
+ }
+
+ alen = len - url_ftell(&pb);
+ if (alen <= 0)
+ return AVERROR_INVALIDDATA;
+
+ switch (packing_scheme) {
+ case 3: /* one data packet spread over 1 or multiple RTP packets */
+ if (qt->pkt.size > 0 && qt->timestamp == *timestamp) {
+ qt->pkt.data = av_realloc(qt->pkt.data, qt->pkt.size + alen +
+ FF_INPUT_BUFFER_PADDING_SIZE);
+ } else {
+ av_freep(&qt->pkt.data);
+ av_init_packet(&qt->pkt);
+ qt->pkt.data = av_malloc(alen + FF_INPUT_BUFFER_PADDING_SIZE);
+ qt->pkt.size = 0;
+ qt->timestamp = *timestamp;
+ }
+ if (!qt->pkt.data)
+ return AVERROR(ENOMEM);
+ memcpy(qt->pkt.data + qt->pkt.size, buf + url_ftell(&pb), alen);
+ qt->pkt.size += alen;
+ if (has_marker_bit) {
+ *pkt = qt->pkt;
+ qt->pkt.size = 0;
+ qt->pkt.data = NULL;
+ pkt->flags = flags & RTP_FLAG_KEY ? AV_PKT_FLAG_KEY : 0;
+ pkt->stream_index = st->index;
+ pkt->destruct = av_destruct_packet;
+ memset(pkt->data + pkt->size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+ return 0;
+ }
+ return AVERROR(EAGAIN);
+
+ case 1: /* constant packet size, multiple packets per RTP packet */
+ if (qt->bytes_per_frame == 0 ||
+ alen % qt->bytes_per_frame != 0)
+ return AVERROR_INVALIDDATA; /* wrongly padded */
+ qt->remaining = (alen / qt->bytes_per_frame) - 1;
+ if (av_new_packet(pkt, qt->bytes_per_frame))
+ return AVERROR(ENOMEM);
+ memcpy(pkt->data, buf + url_ftell(&pb), qt->bytes_per_frame);
+ pkt->flags = flags & RTP_FLAG_KEY ? AV_PKT_FLAG_KEY : 0;
+ pkt->stream_index = st->index;
+ if (qt->remaining > 0) {
+ av_freep(&qt->pkt.data);
+ qt->pkt.data = av_malloc(qt->remaining * qt->bytes_per_frame);
+ if (!qt->pkt.data) {
+ av_free_packet(pkt);
+ return AVERROR(ENOMEM);
+ }
+ qt->pkt.size = qt->remaining * qt->bytes_per_frame;
+ memcpy(qt->pkt.data,
+ buf + url_ftell(&pb) + qt->bytes_per_frame,
+ qt->remaining * qt->bytes_per_frame);
+ qt->pkt.flags = pkt->flags;
+ return 1;
+ }
+ return 0;
+
+ default: /* unimplemented */
+ av_log_missing_feature(NULL, "RTP-X-QT with packing scheme 2", 1);
+ return AVERROR_NOTSUPP;
+ }
+}
+
+static PayloadContext *qt_rtp_new(void)
+{
+ return av_mallocz(sizeof(PayloadContext));
+}
+
+static void qt_rtp_free(PayloadContext *qt)
+{
+ av_freep(&qt->pkt.data);
+ av_free(qt);
+}
+
+#define RTP_QT_HANDLER(m, n, s, t) \
+RTPDynamicProtocolHandler ff_ ## m ## _rtp_ ## n ## _handler = { \
+ s, \
+ t, \
+ CODEC_ID_NONE, \
+ NULL, \
+ qt_rtp_new, \
+ qt_rtp_free, \
+ qt_rtp_parse_packet, \
+};
+
+RTP_QT_HANDLER(qt, vid, "X-QT", CODEC_TYPE_VIDEO);
+RTP_QT_HANDLER(qt, aud, "X-QT", CODEC_TYPE_AUDIO);
+RTP_QT_HANDLER(quicktime, vid, "X-QUICKTIME", CODEC_TYPE_VIDEO);
+RTP_QT_HANDLER(quicktime, aud, "X-QUICKTIME", CODEC_TYPE_AUDIO);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-08 09:11:09 +0000