[FFmpeg-cvslog] lavf/avs3dec: add raw avs3 demuxer
hwren
git at videolan.org
Mon Oct 5 19:03:42 EEST 2020
ffmpeg | branch: master | hwren <hwrenx at 126.com> | Mon Oct 5 20:10:45 2020 +0800| [ff74ad2a4b51bda9f6ec92fffa09228c408eaa0b] | committer: hwren
lavf/avs3dec: add raw avs3 demuxer
Signed-off-by: hbj <hanbj at pku.edu.cn>
Signed-off-by: hwren <hwrenx at 126.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ff74ad2a4b51bda9f6ec92fffa09228c408eaa0b
---
Changelog | 1 +
libavformat/Makefile | 1 +
libavformat/allformats.c | 1 +
libavformat/avs3dec.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++
libavformat/version.h | 2 +-
5 files changed, 72 insertions(+), 1 deletion(-)
diff --git a/Changelog b/Changelog
index 89c235e7fe..49064becb4 100644
--- a/Changelog
+++ b/Changelog
@@ -32,6 +32,7 @@ version <next>:
- Argonaut Games Video decoder
- libwavpack encoder removed
- ACE demuxer
+- AVS3 demuxer
version 4.3:
diff --git a/libavformat/Makefile b/libavformat/Makefile
index e82af409b7..7b1fca0bab 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -125,6 +125,7 @@ OBJS-$(CONFIG_AVR_DEMUXER) += avr.o pcm.o
OBJS-$(CONFIG_AVS_DEMUXER) += avs.o voc_packet.o vocdec.o voc.o
OBJS-$(CONFIG_AVS2_DEMUXER) += davs2.o rawdec.o
OBJS-$(CONFIG_AVS2_MUXER) += rawenc.o
+OBJS-$(CONFIG_AVS3_DEMUXER) += avs3dec.o rawdec.o
OBJS-$(CONFIG_BETHSOFTVID_DEMUXER) += bethsoftvid.o
OBJS-$(CONFIG_BFI_DEMUXER) += bfi.o
OBJS-$(CONFIG_BINK_DEMUXER) += bink.o
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index 9d85b8ccc3..3912b60ec3 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -87,6 +87,7 @@ extern AVInputFormat ff_avr_demuxer;
extern AVInputFormat ff_avs_demuxer;
extern AVInputFormat ff_avs2_demuxer;
extern AVOutputFormat ff_avs2_muxer;
+extern AVInputFormat ff_avs3_demuxer;
extern AVInputFormat ff_bethsoftvid_demuxer;
extern AVInputFormat ff_bfi_demuxer;
extern AVInputFormat ff_bintext_demuxer;
diff --git a/libavformat/avs3dec.c b/libavformat/avs3dec.c
new file mode 100644
index 0000000000..253caa7c1d
--- /dev/null
+++ b/libavformat/avs3dec.c
@@ -0,0 +1,68 @@
+/*
+ * RAW AVS3-P2/IEEE1857.10 video demuxer
+ * Copyright (c) 2020 Zhenyu Wang <wangzhenyu at pkusz.edu.cn>
+ * Bingjie Han <hanbj at pkusz.edu.cn>
+ * Huiwen Ren <hwrenx at gmail.com>
+ *
+ * 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 "libavcodec/avs3.h"
+#include "libavcodec/internal.h"
+#include "avformat.h"
+#include "rawdec.h"
+
+static int avs3video_probe(const AVProbeData *p)
+{
+ const uint8_t *ptr = p->buf, *end = p->buf + p->buf_size;
+ uint32_t code = -1;
+ uint8_t state = 0;
+ int pic = 0, seq = 0, slice_pos = 0;
+ int ret = 0;
+
+ while (ptr < end) {
+ ptr = avpriv_find_start_code(ptr, end, &code);
+ state = code & 0xFF;
+ if ((code & 0xFFFFFF00) == 0x100) {
+ if (state < AVS3_SEQ_START_CODE) {
+ if (code < slice_pos)
+ return 0;
+ slice_pos = code;
+ } else {
+ slice_pos = 0;
+ }
+ if (state == AVS3_SEQ_START_CODE) {
+ seq++;
+ if (*ptr != AVS3_PROFILE_BASELINE_MAIN && *ptr != AVS3_PROFILE_BASELINE_MAIN10)
+ return 0;
+ } else if (AVS3_ISPIC(state)) {
+ pic++;
+ } else if ((state == AVS3_UNDEF_START_CODE) ||
+ (state > AVS3_VIDEO_EDIT_CODE)) {
+ return 0;
+ }
+ }
+ }
+
+ if (seq && pic && av_match_ext(p->filename, "avs3")) {
+ ret = AVPROBE_SCORE_MAX;
+ }
+
+ return ret;
+}
+
+FF_DEF_RAWVIDEO_DEMUXER(avs3, "raw AVS3-P2/IEEE1857.10", avs3video_probe, "avs3", AV_CODEC_ID_AVS3)
diff --git a/libavformat/version.h b/libavformat/version.h
index 9bde0c37f9..6a601f0c92 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -32,7 +32,7 @@
// Major bumping may affect Ticket5467, 5421, 5451(compatibility with Chromium)
// Also please add any ticket numbers that you believe might be affected here
#define LIBAVFORMAT_VERSION_MAJOR 58
-#define LIBAVFORMAT_VERSION_MINOR 60
+#define LIBAVFORMAT_VERSION_MINOR 61
#define LIBAVFORMAT_VERSION_MICRO 100
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
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