[FFmpeg-cvslog] Use parsers for RealVideo 3/4 to determine correct PTS
Kostya Shishkov
git at videolan.org
Thu Aug 18 11:48:02 CEST 2011
ffmpeg | branch: master | Kostya Shishkov <kostya.shishkov at gmail.com> | Mon Aug 15 12:03:40 2011 +0200| [48ce8b8da714558c8738610d5512b6c3c95c901a] | committer: Anton Khirnov
Use parsers for RealVideo 3/4 to determine correct PTS
Signed-off-by: Anton Khirnov <anton at khirnov.net>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=48ce8b8da714558c8738610d5512b6c3c95c901a
---
libavcodec/Makefile | 2 +
libavcodec/allcodecs.c | 2 +
libavcodec/rv34_parser.c | 97 ++++++++++++++++++++++
libavformat/rmdec.c | 1 +
tests/ref/fate/real-rv40 | 205 +++++++++++++++++++++++-----------------------
tests/ref/fate/rv30 | 63 +++++++-------
6 files changed, 235 insertions(+), 135 deletions(-)
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 36e07a9..2264e86 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -616,6 +616,8 @@ OBJS-$(CONFIG_MPEGVIDEO_PARSER) += mpegvideo_parser.o \
mpeg12.o mpeg12data.o \
mpegvideo.o error_resilience.o
OBJS-$(CONFIG_PNM_PARSER) += pnm_parser.o pnm.o
+OBJS-$(CONFIG_RV30_PARSER) += rv34_parser.o
+OBJS-$(CONFIG_RV40_PARSER) += rv34_parser.o
OBJS-$(CONFIG_VC1_PARSER) += vc1_parser.o vc1.o vc1data.o \
msmpeg4.o msmpeg4data.o mpeg4video.o \
h263.o mpegvideo.o error_resilience.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index dcef0d6..7ba945c 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -396,6 +396,8 @@ void avcodec_register_all(void)
REGISTER_PARSER (MPEGAUDIO, mpegaudio);
REGISTER_PARSER (MPEGVIDEO, mpegvideo);
REGISTER_PARSER (PNM, pnm);
+ REGISTER_PARSER (RV30, rv30);
+ REGISTER_PARSER (RV40, rv40);
REGISTER_PARSER (VC1, vc1);
REGISTER_PARSER (VP3, vp3);
REGISTER_PARSER (VP8, vp8);
diff --git a/libavcodec/rv34_parser.c b/libavcodec/rv34_parser.c
new file mode 100644
index 0000000..c2563a5
--- /dev/null
+++ b/libavcodec/rv34_parser.c
@@ -0,0 +1,97 @@
+/*
+ * RV30/40 parser
+ * Copyright (c) 2011 Konstantin Shishkov
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * RV30/40 parser
+ */
+
+#include "parser.h"
+#include "libavutil/intreadwrite.h"
+
+typedef struct {
+ ParseContext pc;
+ int64_t key_dts;
+ int key_pts;
+} RV34ParseContext;
+
+static const int rv_to_av_frame_type[4] = {
+ AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B,
+};
+
+static int rv34_parse(AVCodecParserContext *s,
+ AVCodecContext *avctx,
+ const uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size)
+{
+ RV34ParseContext *pc = s->priv_data;
+ int off;
+ int type, pts, hdr;
+
+ if (buf_size < 13 + *buf * 8) {
+ *poutbuf = buf;
+ *poutbuf_size = buf_size;
+ return buf_size;
+ }
+
+ off = AV_RL32(buf + 5);
+ hdr = AV_RB32(buf + 9 + *buf * 8);
+ if (avctx->codec_id == CODEC_ID_RV30) {
+ type = (hdr >> 27) & 3;
+ pts = (hdr >> 7) & 0x1FFF;
+ } else {
+ type = (hdr >> 29) & 3;
+ pts = (hdr >> 6) & 0x1FFF;
+ }
+
+ if (type != 3 && s->pts != AV_NOPTS_VALUE) {
+ pc->key_dts = s->pts;
+ pc->key_pts = pts;
+ } else {
+ if (type != 3)
+ s->pts = pc->key_dts + ((pts - pc->key_pts) & 0x1FFF);
+ else
+ s->pts = pc->key_dts - ((pc->key_pts - pts) & 0x1FFF);
+ }
+ s->pict_type = rv_to_av_frame_type[type];
+
+ *poutbuf = buf;
+ *poutbuf_size = buf_size;
+ return buf_size;
+}
+
+#ifdef CONFIG_RV30_PARSER
+AVCodecParser ff_rv30_parser = {
+ { CODEC_ID_RV30 },
+ sizeof(RV34ParseContext),
+ NULL,
+ rv34_parse,
+};
+#endif
+
+#ifdef CONFIG_RV40_PARSER
+AVCodecParser ff_rv40_parser = {
+ { CODEC_ID_RV40 },
+ sizeof(RV34ParseContext),
+ NULL,
+ rv34_parse,
+};
+#endif
diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c
index 5ee75b5..cf5c46a 100644
--- a/libavformat/rmdec.c
+++ b/libavformat/rmdec.c
@@ -298,6 +298,7 @@ ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVIOContext *pb,
st->codec->time_base.num= 1;
fps= avio_rb16(pb);
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->need_parsing = AVSTREAM_PARSE_TIMESTAMPS;
avio_rb32(pb);
avio_skip(pb, 2);
avio_rb16(pb);
diff --git a/tests/ref/fate/real-rv40 b/tests/ref/fate/real-rv40
index 990a530..22cc731 100644
--- a/tests/ref/fate/real-rv40
+++ b/tests/ref/fate/real-rv40
@@ -16,106 +16,105 @@
0, 112500, 276480, 0x5f7a0d4f
0, 120000, 276480, 0x5f7a0d4f
0, 127500, 276480, 0x5f7a0d4f
-0, 135000, 276480, 0x75641594
-0, 142500, 276480, 0x32ee3526
-0, 150000, 276480, 0x5ce39368
-0, 157500, 276480, 0x4ec1e418
-0, 165000, 276480, 0x85cbc3b5
-0, 172500, 276480, 0x377c7b46
-0, 180000, 276480, 0x756a4a2e
-0, 187500, 276480, 0xcb379547
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-0, 202500, 276480, 0xe479ffed
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-0, 240000, 276480, 0xc3db9706
-0, 247500, 276480, 0xc9c57884
-0, 255000, 276480, 0x000b5269
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-0, 270000, 276480, 0x70647530
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diff --git a/tests/ref/fate/rv30 b/tests/ref/fate/rv30
index 867151b..8777367 100644
--- a/tests/ref/fate/rv30
+++ b/tests/ref/fate/rv30
@@ -2,45 +2,44 @@
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