[FFmpeg-devel] [PATCH 7/8] avcodec/vbnenc: add VBN encoder
Marton Balint
cus at passwd.hu
Wed Mar 30 23:32:04 EEST 2022
Signed-off-by: Marton Balint <cus at passwd.hu>
---
Changelog | 2 +-
configure | 1 +
libavcodec/Makefile | 1 +
libavcodec/allcodecs.c | 1 +
libavcodec/vbnenc.c | 173 +++++++++++++++++++++++++++++++++++++++++
libavcodec/version.h | 2 +-
libavformat/img2enc.c | 2 +-
libavformat/version.h | 4 +-
8 files changed, 181 insertions(+), 5 deletions(-)
create mode 100644 libavcodec/vbnenc.c
diff --git a/Changelog b/Changelog
index 7bad88dabc..c3fbba5221 100644
--- a/Changelog
+++ b/Changelog
@@ -6,7 +6,7 @@ version 5.1:
- dropped obsolete XvMC hwaccel
- pcm-bluray encoder
- DFPWM audio encoder/decoder and raw muxer/demuxer
-- Vizrt Binary Image decoder
+- Vizrt Binary Image encoder/decoder
version 5.0:
diff --git a/configure b/configure
index 90c99ff85e..9c8965852b 100755
--- a/configure
+++ b/configure
@@ -2960,6 +2960,7 @@ utvideo_decoder_select="bswapdsp llviddsp"
utvideo_encoder_select="bswapdsp huffman llvidencdsp"
vble_decoder_select="llviddsp"
vbn_decoder_select="texturedsp"
+vbn_encoder_select="texturedspenc"
vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideodec vc1dsp"
vc1image_decoder_select="vc1_decoder"
vorbis_decoder_select="mdct"
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 90700085b8..90f46035d9 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -709,6 +709,7 @@ OBJS-$(CONFIG_V410_DECODER) += v410dec.o
OBJS-$(CONFIG_V410_ENCODER) += v410enc.o
OBJS-$(CONFIG_VB_DECODER) += vb.o
OBJS-$(CONFIG_VBN_DECODER) += vbndec.o
+OBJS-$(CONFIG_VBN_ENCODER) += vbnenc.o
OBJS-$(CONFIG_VBLE_DECODER) += vble.o
OBJS-$(CONFIG_VC1_DECODER) += vc1dec.o vc1_block.o vc1_loopfilter.o \
vc1_mc.o vc1_pred.o vc1.o vc1data.o \
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index f0a7ea7fd4..585918da93 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -347,6 +347,7 @@ extern const FFCodec ff_v408_decoder;
extern const FFCodec ff_v410_encoder;
extern const FFCodec ff_v410_decoder;
extern const FFCodec ff_vb_decoder;
+extern const FFCodec ff_vbn_encoder;
extern const FFCodec ff_vbn_decoder;
extern const FFCodec ff_vble_decoder;
extern const FFCodec ff_vc1_decoder;
diff --git a/libavcodec/vbnenc.c b/libavcodec/vbnenc.c
new file mode 100644
index 0000000000..51f618c7d9
--- /dev/null
+++ b/libavcodec/vbnenc.c
@@ -0,0 +1,173 @@
+/*
+ * Vizrt Binary Image encoder
+ *
+ * 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
+ * Vizrt Binary Image encoder
+ */
+
+#include "avcodec.h"
+#include "bytestream.h"
+#include "codec_internal.h"
+#include "encode.h"
+#include "texturedsp.h"
+#include "vbn.h"
+
+#include "libavutil/imgutils.h"
+#include "libavutil/frame.h"
+#include "libavutil/opt.h"
+
+typedef struct VBNContext {
+ AVClass *class;
+ TextureDSPContext dxtc;
+ PutByteContext pb;
+ int format;
+ TextureDSPThreadContext enc;
+} VBNContext;
+
+static int vbn_encode(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *frame, int *got_packet)
+{
+ VBNContext *ctx = avctx->priv_data;
+ PutByteContext *pb = &ctx->pb;
+ int ret;
+ ptrdiff_t linesize;
+ int64_t pkt_size;
+
+ ret = av_image_check_size2(frame->width, frame->height, INT_MAX, frame->format, 0, avctx);
+ if (ret < 0)
+ return ret;
+
+ if (ctx->format == VBN_FORMAT_DXT1 || ctx->format == VBN_FORMAT_DXT5) {
+ if (frame->width % TEXTURE_BLOCK_W || frame->height % TEXTURE_BLOCK_H) {
+ av_log(avctx, AV_LOG_ERROR, "Video size %dx%d is not multiple of 4\n", frame->width, frame->height);
+ return AVERROR(EINVAL);
+ }
+ if (frame->format != AV_PIX_FMT_RGBA) {
+ av_log(avctx, AV_LOG_ERROR, "DXT formats only support RGBA pixel format\n");
+ return AVERROR(EINVAL);
+ }
+ ctx->enc.raw_ratio = 16;
+ ctx->enc.slice_count = av_clip(avctx->thread_count, 1, avctx->height / TEXTURE_BLOCK_H);
+ }
+
+ switch (ctx->format) {
+ case VBN_FORMAT_DXT1:
+ linesize = frame->width / 2;
+ ctx->enc.tex_funct = ctx->dxtc.dxt1_block;
+ ctx->enc.tex_ratio = 8;
+ break;
+ case VBN_FORMAT_DXT5:
+ linesize = frame->width;
+ ctx->enc.tex_funct = ctx->dxtc.dxt5_block;
+ ctx->enc.tex_ratio = 16;
+ break;
+ case VBN_FORMAT_RAW:
+ linesize = av_image_get_linesize(frame->format, frame->width, 0);
+ if (linesize < 0)
+ return linesize;
+ break;
+ default:
+ av_log(avctx, AV_LOG_ERROR, "Invalid format %02X\n", ctx->format);
+ return AVERROR(EINVAL);
+ }
+
+ pkt_size = VBN_HEADER_SIZE + linesize * frame->height;
+ if (pkt_size > INT_MAX)
+ return AVERROR(EINVAL);
+
+ if ((ret = ff_get_encode_buffer(avctx, pkt, pkt_size, 0)) < 0)
+ return ret;
+
+ memset(pkt->data, 0, VBN_HEADER_SIZE);
+ bytestream2_init_writer(pb, pkt->data, pkt_size);
+ bytestream2_put_le32(pb, VBN_MAGIC);
+ bytestream2_put_le32(pb, VBN_MAJOR);
+ bytestream2_put_le32(pb, VBN_MINOR);
+ bytestream2_put_le32(pb, frame->width);
+ bytestream2_put_le32(pb, frame->height);
+ bytestream2_put_le32(pb, frame->format == AV_PIX_FMT_RGBA ? 4 : 3);
+ bytestream2_put_le32(pb, ctx->format);
+ bytestream2_put_le32(pb, frame->format == AV_PIX_FMT_RGBA ? VBN_PIX_RGBA : VBN_PIX_RGB);
+ bytestream2_put_le32(pb, 0); // mipmaps
+ bytestream2_put_le32(pb, pkt_size - VBN_HEADER_SIZE);
+ bytestream2_seek_p(pb, 64, SEEK_SET);
+ bytestream2_put_le32(pb, pkt_size - VBN_HEADER_SIZE);
+
+ if (ctx->format == VBN_FORMAT_DXT1 || ctx->format == VBN_FORMAT_DXT5) {
+ ctx->enc.frame_data.in = (frame->height - 1) * frame->linesize[0] + frame->data[0];
+ ctx->enc.stride = -frame->linesize[0];
+ ctx->enc.tex_data.out = pkt->data + VBN_HEADER_SIZE;
+ avctx->execute2(avctx, ff_texturedsp_compress_thread, &ctx->enc, NULL, ctx->enc.slice_count);
+ } else {
+ uint8_t *flipped = frame->data[0] + frame->linesize[0] * (frame->height - 1);
+ av_image_copy_plane(pkt->data + VBN_HEADER_SIZE, linesize, flipped, -frame->linesize[0], linesize, frame->height);
+ }
+
+ *got_packet = 1;
+ return 0;
+}
+
+static av_cold int vbn_init(AVCodecContext *avctx)
+{
+ VBNContext *ctx = avctx->priv_data;
+ ff_texturedspenc_init(&ctx->dxtc);
+ return 0;
+}
+
+static av_cold int vbn_close(AVCodecContext *avctx)
+{
+ return 0;
+}
+
+#define OFFSET(x) offsetof(VBNContext, x)
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+ { "format", "Texture format", OFFSET(format), AV_OPT_TYPE_INT, { .i64 = VBN_FORMAT_DXT5 }, VBN_FORMAT_RAW, VBN_FORMAT_DXT5, FLAGS, "format" },
+ { "raw", "RAW texture", 0, AV_OPT_TYPE_CONST, { .i64 = VBN_FORMAT_RAW }, 0, 0, FLAGS, "format" },
+ { "dxt1", "DXT1 texture", 0, AV_OPT_TYPE_CONST, { .i64 = VBN_FORMAT_DXT1 }, 0, 0, FLAGS, "format" },
+ { "dxt5", "DXT5 texture", 0, AV_OPT_TYPE_CONST, { .i64 = VBN_FORMAT_DXT5 }, 0, 0, FLAGS, "format" },
+ { NULL },
+};
+
+static const AVClass vbnenc_class = {
+ .class_name = "VBN encoder",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+const FFCodec ff_vbn_encoder = {
+ .p.name = "vbn",
+ .p.long_name = NULL_IF_CONFIG_SMALL("Vizrt Binary Image"),
+ .p.type = AVMEDIA_TYPE_VIDEO,
+ .p.id = AV_CODEC_ID_VBN,
+ .p.capabilities = AV_CODEC_CAP_SLICE_THREADS,
+ .p.priv_class = &vbnenc_class,
+ .init = vbn_init,
+ .encode2 = vbn_encode,
+ .close = vbn_close,
+ .priv_data_size = sizeof(VBNContext),
+ .p.pix_fmts = (const enum AVPixelFormat[]) {
+ AV_PIX_FMT_RGBA, AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE,
+ },
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
+ FF_CODEC_CAP_INIT_CLEANUP,
+};
diff --git a/libavcodec/version.h b/libavcodec/version.h
index a744e7469f..26ee41eb1f 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -29,7 +29,7 @@
#include "version_major.h"
-#define LIBAVCODEC_VERSION_MINOR 25
+#define LIBAVCODEC_VERSION_MINOR 26
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
diff --git a/libavformat/img2enc.c b/libavformat/img2enc.c
index 9b3b8741c8..ae351963d9 100644
--- a/libavformat/img2enc.c
+++ b/libavformat/img2enc.c
@@ -265,7 +265,7 @@ const AVOutputFormat ff_image2_muxer = {
.long_name = NULL_IF_CONFIG_SMALL("image2 sequence"),
.extensions = "bmp,dpx,exr,jls,jpeg,jpg,ljpg,pam,pbm,pcx,pfm,pgm,pgmyuv,png,"
"ppm,sgi,tga,tif,tiff,jp2,j2c,j2k,xwd,sun,ras,rs,im1,im8,im24,"
- "sunras,xbm,xface,pix,y",
+ "sunras,vbn,xbm,xface,pix,y",
.priv_data_size = sizeof(VideoMuxData),
.video_codec = AV_CODEC_ID_MJPEG,
.write_header = write_header,
diff --git a/libavformat/version.h b/libavformat/version.h
index f4a26c2870..683184d5da 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -31,8 +31,8 @@
#include "version_major.h"
-#define LIBAVFORMAT_VERSION_MINOR 20
-#define LIBAVFORMAT_VERSION_MICRO 101
+#define LIBAVFORMAT_VERSION_MINOR 21
+#define LIBAVFORMAT_VERSION_MICRO 100
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \
--
2.31.1
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