[FFmpeg-devel] [PATCH 2/2 v3] libutvideo: Add Ut Video encoder wrapper
Derek Buitenhuis
derek.buitenhuis at gmail.com
Mon Mar 5 21:25:16 CET 2012
All colorspaces are supported.
Renamed libutvideo.cpp to libutvideodec.cpp.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis at gmail.com>
---
Changelog | 1 +
MAINTAINERS | 1 +
configure | 3 +-
libavcodec/Makefile | 3 +-
libavcodec/allcodecs.c | 2 +-
libavcodec/{libutvideo.cpp => libutvideodec.cpp} | 0
libavcodec/libutvideoenc.cpp | 240 ++++++++++++++++++++++
libavcodec/version.h | 2 +-
libavformat/utils.c | 1 +
9 files changed, 249 insertions(+), 4 deletions(-)
rename libavcodec/{libutvideo.cpp => libutvideodec.cpp} (100%)
create mode 100644 libavcodec/libutvideoenc.cpp
diff --git a/Changelog b/Changelog
index 9779bd0..77112f6 100644
--- a/Changelog
+++ b/Changelog
@@ -12,6 +12,7 @@ version next:
- WMA Lossless decoder
- bluray protocol
- blackdetect filter
+- libutvideo encoder wrapper (--enable-libutvideo)
version 0.10:
diff --git a/MAINTAINERS b/MAINTAINERS
index 834686e..9441bd0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -171,6 +171,7 @@ Codecs:
libschroedinger* David Conrad
libspeexdec.c Justin Ruggles
libtheoraenc.c David Conrad
+ libutvideo* Derek Buitenhuis
libvorbis.c David Conrad
libxavs.c Stefan Gehrer
libx264.c Mans Rullgard, Jason Garrett-Glaser
diff --git a/configure b/configure
index b92609a..9ab2302 100755
--- a/configure
+++ b/configure
@@ -194,7 +194,7 @@ External library support:
--enable-libspeex enable Speex support via libspeex [no]
--enable-libstagefright-h264 enable H.264 decoding via libstagefright [no]
--enable-libtheora enable Theora encoding via libtheora [no]
- --enable-libutvideo enable Ut Video decoding via libutvideo [no]
+ --enable-libutvideo enable Ut Video encoding and decoding via libutvideo [no]
--enable-libv4l2 enable libv4l2/v4l-utils [no]
--enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
--enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
@@ -1575,6 +1575,7 @@ libx264rgb_encoder_deps="libx264"
libxavs_encoder_deps="libxavs"
libxvid_encoder_deps="libxvid"
libutvideo_decoder_deps="libutvideo gpl"
+libutvideo_encoder_deps="libutvideo gpl"
# demuxers / muxers
ac3_demuxer_select="ac3_parser"
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 433ae48..2e11dc8 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -647,7 +647,8 @@ OBJS-$(CONFIG_LIBSPEEX_DECODER) += libspeexdec.o
OBJS-$(CONFIG_LIBSPEEX_ENCODER) += libspeexenc.o
OBJS-$(CONFIG_LIBSTAGEFRIGHT_H264_DECODER)+= libstagefright.o
OBJS-$(CONFIG_LIBTHEORA_ENCODER) += libtheoraenc.o
-OBJS-$(CONFIG_LIBUTVIDEO_DECODER) += libutvideo.o
+OBJS-$(CONFIG_LIBUTVIDEO_DECODER) += libutvideodec.o
+OBJS-$(CONFIG_LIBUTVIDEO_ENCODER) += libutvideoenc.o
OBJS-$(CONFIG_LIBVO_AACENC_ENCODER) += libvo-aacenc.o mpeg4audio.o
OBJS-$(CONFIG_LIBVO_AMRWBENC_ENCODER) += libvo-amrwbenc.o
OBJS-$(CONFIG_LIBVORBIS_ENCODER) += libvorbis.o vorbis_data.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index c8cfbb5..52a67f3 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -412,7 +412,7 @@ void avcodec_register_all(void)
REGISTER_ENCDEC (LIBSPEEX, libspeex);
REGISTER_DECODER (LIBSTAGEFRIGHT_H264, libstagefright_h264);
REGISTER_ENCODER (LIBTHEORA, libtheora);
- REGISTER_DECODER (LIBUTVIDEO, libutvideo);
+ REGISTER_ENCDEC (LIBUTVIDEO, libutvideo);
REGISTER_ENCODER (LIBVO_AACENC, libvo_aacenc);
REGISTER_ENCODER (LIBVO_AMRWBENC, libvo_amrwbenc);
REGISTER_ENCODER (LIBVORBIS, libvorbis);
diff --git a/libavcodec/libutvideo.cpp b/libavcodec/libutvideodec.cpp
similarity index 100%
rename from libavcodec/libutvideo.cpp
rename to libavcodec/libutvideodec.cpp
diff --git a/libavcodec/libutvideoenc.cpp b/libavcodec/libutvideoenc.cpp
new file mode 100644
index 0000000..8f106f2
--- /dev/null
+++ b/libavcodec/libutvideoenc.cpp
@@ -0,0 +1,240 @@
+/*
+ * Copyright (c) 2012 Derek Buitenhuis
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation;
+ * version 2 of the License.
+ *
+ * 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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
+ * Known FOURCCs:
+ * 'ULY0' (YCbCr 4:2:0), 'ULY2' (YCbCr 4:2:2), 'ULRG' (RGB), 'ULRA' (RGBA)
+ */
+
+extern "C" {
+#include "avcodec.h"
+#include "internal.h"
+}
+
+#include "libutvideo.h"
+#include "put_bits.h"
+
+static av_cold int utvideo_encode_init(AVCodecContext *avctx)
+{
+ UtVideoContext *utv = (UtVideoContext *)avctx->priv_data;
+ UtVideoExtra *info;
+ uint32_t flags, in_format;
+
+ switch (avctx->pix_fmt) {
+ case PIX_FMT_YUV420P:
+ in_format = UTVF_YV12;
+ avctx->bits_per_coded_sample = 12;
+ avctx->codec_tag = MKTAG('U', 'L', 'Y', '0');
+ break;
+ case PIX_FMT_YUYV422:
+ in_format = UTVF_YUYV;
+ avctx->bits_per_coded_sample = 16;
+ avctx->codec_tag = MKTAG('U', 'L', 'Y', '2');
+ break;
+ case PIX_FMT_BGR24:
+ in_format = UTVF_RGB24_WIN;
+ avctx->bits_per_coded_sample = 24;
+ avctx->codec_tag = MKTAG('U', 'L', 'R', 'G');
+ break;
+ case PIX_FMT_RGB32:
+ in_format = UTVF_RGB32_WIN;
+ avctx->bits_per_coded_sample = 32;
+ avctx->codec_tag = MKTAG('U', 'L', 'R', 'A');
+ break;
+ default:
+ return AVERROR(EINVAL);
+ }
+
+ /* Check before we alloc anything */
+ if (avctx->prediction_method != 0 && avctx->prediction_method != 2) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid prediction method.\n");
+ return AVERROR(EINVAL);
+ }
+
+ flags = ((avctx->prediction_method + 1) << 8) | (avctx->thread_count - 1);
+
+ avctx->priv_data = utv;
+ avctx->coded_frame = avcodec_alloc_frame();
+
+ /* Alloc extradata buffer */
+ info = (UtVideoExtra *)av_malloc(sizeof(*info));
+
+ if (info == NULL) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate extradata buffer.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ /*
+ * We use this buffer to hold the data that Ut Video returns,
+ * since we cannot decode planes separately with it.
+ */
+ utv->buf_size = avpicture_get_size(avctx->pix_fmt,
+ avctx->width, avctx->height);
+ utv->buffer = (uint8_t *)av_malloc(utv->buf_size);
+
+ if (utv->buffer == NULL) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate output buffer.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ /*
+ * Create a Ut Video instance. Since the function wants
+ * an "interface name" string, pass it the name of the lib.
+ */
+ utv->codec = CCodec::CreateInstance(UNFCC(avctx->codec_tag), "libavcodec");
+
+ /* Initialize encoder */
+ utv->codec->EncodeBegin(in_format, avctx->width, avctx->height,
+ CBGROSSWIDTH_WINDOWS);
+
+ /* Get extradata from encoder */
+ avctx->extradata_size = utv->codec->EncodeGetExtraDataSize();
+ utv->codec->EncodeGetExtraData(info, avctx->extradata_size, in_format,
+ avctx->width, avctx->height,
+ CBGROSSWIDTH_WINDOWS);
+ avctx->extradata = (uint8_t *)info;
+
+ /* Set flags */
+ utv->codec->SetState(&flags, sizeof(flags));
+
+ return 0;
+}
+
+static int utvideo_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *pic, int *got_packet)
+{
+ UtVideoContext *utv = (UtVideoContext *)avctx->priv_data;
+ int w = avctx->width, h = avctx->height;
+ int ret, rgb_size, i;
+ bool keyframe;
+ uint8_t *y, *u, *v;
+ uint8_t *dst;
+
+ /* Alloc buffer */
+ if ((ret = ff_alloc_packet(pkt, utv->buf_size)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+ return ret;
+ }
+
+ dst = pkt->data;
+
+ /* Move input if needed data into Ut Video friendly buffer */
+ switch (avctx->pix_fmt) {
+ case PIX_FMT_YUV420P:
+ y = utv->buffer;
+ u = y + w * h;
+ v = u + w * h / 4;
+ for (i = 0; i < h; i++) {
+ memcpy(y, pic->data[0] + i * pic->linesize[0], w);
+ y += w;
+ }
+ for (i = 0; i < h / 2; i++) {
+ memcpy(u, pic->data[2] + i * pic->linesize[2], w >> 1);
+ memcpy(v, pic->data[1] + i * pic->linesize[1], w >> 1);
+ u += w >> 1;
+ v += w >> 1;
+ }
+ break;
+ case PIX_FMT_YUYV422:
+ for (i = 0; i < h; i++)
+ memcpy(utv->buffer + i * (w << 1),
+ pic->data[0] + i * pic->linesize[0], w << 1);
+ break;
+ case PIX_FMT_BGR24:
+ case PIX_FMT_RGB32:
+ /* Ut Video takes bottom-up BGR */
+ rgb_size = avctx->pix_fmt == PIX_FMT_BGR24 ? 3 : 4;
+ for (i = 0; i < h; i++)
+ memcpy(utv->buffer + (h - i - 1) * w * rgb_size,
+ pic->data[0] + i * pic->linesize[0],
+ w * rgb_size);
+ break;
+ default:
+ return AVERROR(EINVAL);
+ }
+
+ /* Encode frame */
+ pkt->size = utv->codec->EncodeFrame(dst, &keyframe, utv->buffer);
+
+ if (!pkt->size) {
+ av_log(avctx, AV_LOG_ERROR, "EncodeFrame failed!\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ /*
+ * Ut Video is intra-only and every frame is a keyframe,
+ * and the API always returns true. In case something
+ * durastic changes in the future, such as inter support,
+ * assert that this is true.
+ */
+ av_assert(keyframe == true);
+ avctx->coded_frame->key_frame = 1;
+ avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
+
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ *got_packet = 1;
+ return 0;
+}
+
+static av_cold int utvideo_encode_close(AVCodecContext *avctx)
+{
+ UtVideoContext *utv = (UtVideoContext *)avctx->priv_data;
+
+ av_freep(&avctx->coded_frame);
+ av_freep(&avctx->extradata);
+ av_freep(&utv->buffer);
+
+ utv->codec->EncodeEnd();
+ CCodec::DeleteInstance(utv->codec);
+
+ return 0;
+}
+
+AVCodec ff_libutvideo_encoder = {
+ "libutvideo",
+ NULL_IF_CONFIG_SMALL("Ut Video"),
+ AVMEDIA_TYPE_VIDEO,
+ CODEC_ID_UTVIDEO,
+ CODEC_CAP_AUTO_THREADS | CODEC_CAP_LOSSLESS,
+ NULL, /* supported_framerates */
+ (const enum PixelFormat[]) {
+ PIX_FMT_YUV420P, PIX_FMT_YUYV422, PIX_FMT_BGR24,
+ PIX_FMT_RGB32, PIX_FMT_NONE
+ },
+ NULL, /* supported_samplerates */
+ NULL, /* sample_fmts */
+ NULL, /* channel_layouts */
+ 0, /* max_lowres */
+ NULL, /* priv_class */
+ NULL, /* profiles */
+ sizeof(UtVideoContext),
+ NULL, /* next */
+ NULL, /* init_thread_copy */
+ NULL, /* update_thread_context */
+ NULL, /* defaults */
+ NULL, /* init_static_data */
+ utvideo_encode_init,
+ NULL, /* encode */
+ utvideo_encode_frame,
+ NULL, /* decode */
+ utvideo_encode_close,
+ NULL, /* flush */
+};
diff --git a/libavcodec/version.h b/libavcodec/version.h
index b8d2bbf..72d5b2e 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -21,7 +21,7 @@
#define AVCODEC_VERSION_H
#define LIBAVCODEC_VERSION_MAJOR 54
-#define LIBAVCODEC_VERSION_MINOR 8
+#define LIBAVCODEC_VERSION_MINOR 9
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
diff --git a/libavformat/utils.c b/libavformat/utils.c
index dce3444..42dbae3 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -852,6 +852,7 @@ static int is_intra_only(AVCodecContext *enc){
case CODEC_ID_VCR1:
case CODEC_ID_DNXHD:
case CODEC_ID_JPEG2000:
+ case CODEC_ID_UTVIDEO:
return 1;
default: break;
}
--
1.7.9.1
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