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avcodec: remove libutvideo wrapper support 

The 10-bit decoding support is available now in native decoder.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
tags/n3.1
Derek Buitenhuis Paul B Mahol 9 years ago
parent
dccea0ed0d
commit
a02766fb4d
9 changed files with 2 additions and 647 deletions
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  1. +2
    -0
      Changelog
  2. +0
    -2
      LICENSE.md
  3. +0
    -1
      MAINTAINERS
  4. +0
    -8
      configure
  5. +0
    -3
      libavcodec/Makefile
  6. +0
    -1
      libavcodec/allcodecs.c
  7. +0
    -72
      libavcodec/libutvideo.h
  8. +0
    -279
      libavcodec/libutvideodec.cpp
  9. +0
    -281
      libavcodec/libutvideoenc.cpp

+ 2
- 0
Changelog View File

@@ -42,6 +42,8 @@ version <next>:
- OpenExr improvements (tile data and B44/B44A support)
- BitJazz SheerVideo decoder
- CUDA CUVID H264/HEVC decoder
- 10-bit depth support in native utvideo decoder
- libutvideo wrapper removed


version 3.0:


+ 0
- 2
LICENSE.md View File

@@ -17,7 +17,6 @@ Specifically, the GPL parts of FFmpeg are:
- `libavcodec/x86/flac_dsp_gpl.asm`
- `libavcodec/x86/idct_mmx.c`
- `libavfilter/x86/vf_removegrain.asm`
- libutvideo encoding/decoding wrappers in `libavcodec/libutvideo*.cpp`
- the X11 grabber in `libavdevice/x11grab.c`
- the following building and testing tools
- `compat/solaris/make_sunver.pl`
@@ -87,7 +86,6 @@ The following libraries are under GPL:
- frei0r
- libcdio
- librubberband
- libutvideo
- libvidstab
- libx264
- libx265


+ 0
- 1
MAINTAINERS View File

@@ -204,7 +204,6 @@ Codecs:
libschroedinger* David Conrad
libspeexdec.c Justin Ruggles
libtheoraenc.c David Conrad
libutvideo* Carl Eugen Hoyos
libvorbis.c David Conrad
libvpx* James Zern
libx264.c Mans Rullgard, Jason Garrett-Glaser


+ 0
- 8
configure View File

@@ -263,7 +263,6 @@ External library support:
--enable-libtesseract enable Tesseract, needed for ocr filter [no]
--enable-libtheora enable Theora encoding via libtheora [no]
--enable-libtwolame enable MP2 encoding via libtwolame [no]
--enable-libutvideo enable Ut Video encoding and decoding via libutvideo [no]
--enable-libv4l2 enable libv4l2/v4l-utils [no]
--enable-libvidstab enable video stabilization using vid.stab [no]
--enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
@@ -1510,7 +1509,6 @@ EXTERNAL_LIBRARY_LIST="
libtesseract
libtheora
libtwolame
libutvideo
libv4l2
libvidstab
libvo_amrwbenc
@@ -2773,8 +2771,6 @@ libspeex_encoder_deps="libspeex"
libspeex_encoder_select="audio_frame_queue"
libtheora_encoder_deps="libtheora"
libtwolame_encoder_deps="libtwolame"
libutvideo_decoder_deps="libutvideo"
libutvideo_encoder_deps="libutvideo"
libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
libvorbis_decoder_deps="libvorbis"
libvorbis_encoder_deps="libvorbis"
@@ -5013,7 +5009,6 @@ die_license_disabled gpl frei0r
die_license_disabled gpl libcdio
die_license_disabled gpl librubberband
die_license_disabled gpl libsmbclient
die_license_disabled gpl libutvideo
die_license_disabled gpl libvidstab
die_license_disabled gpl libx264
die_license_disabled gpl libx265
@@ -5685,9 +5680,6 @@ enabled libtheora && require libtheora theora/theoraenc.h th_info_init -
enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame &&
{ check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
enabled libutvideo && { require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++ &&
check_cpp_condition utvideo/utvideo.h "!defined(UTVIDEO_VERSION_MAJOR) || UTVIDEO_VERSION_MAJOR < 15 || UTVIDEO_VERSION_MAJOR == 15 && UTVIDEO_VERSION_MINOR < 4" ||
die "ERROR: libutvideo version must be <= 15.3.0."; }
enabled libv4l2 && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
enabled libvidstab && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc


+ 0
- 3
libavcodec/Makefile View File

@@ -880,8 +880,6 @@ OBJS-$(CONFIG_LIBSPEEX_DECODER) += libspeexdec.o
OBJS-$(CONFIG_LIBSPEEX_ENCODER) += libspeexenc.o
OBJS-$(CONFIG_LIBTHEORA_ENCODER) += libtheoraenc.o
OBJS-$(CONFIG_LIBTWOLAME_ENCODER) += libtwolame.o
OBJS-$(CONFIG_LIBUTVIDEO_DECODER) += libutvideodec.o
OBJS-$(CONFIG_LIBUTVIDEO_ENCODER) += libutvideoenc.o
OBJS-$(CONFIG_LIBVO_AMRWBENC_ENCODER) += libvo-amrwbenc.o
OBJS-$(CONFIG_LIBVORBIS_DECODER) += libvorbisdec.o
OBJS-$(CONFIG_LIBVORBIS_ENCODER) += libvorbisenc.o \
@@ -993,7 +991,6 @@ SKIPHEADERS-$(CONFIG_D3D11VA) += d3d11va.h dxva2_internal.h
SKIPHEADERS-$(CONFIG_DXVA2) += dxva2.h dxva2_internal.h
SKIPHEADERS-$(CONFIG_JNI) += ffjni.h
SKIPHEADERS-$(CONFIG_LIBSCHROEDINGER) += libschroedinger.h
SKIPHEADERS-$(CONFIG_LIBUTVIDEO) += libutvideo.h
SKIPHEADERS-$(CONFIG_LIBVPX) += libvpx.h
SKIPHEADERS-$(CONFIG_LIBWEBP_ENCODER) += libwebpenc_common.h
SKIPHEADERS-$(CONFIG_MEDIACODEC) += mediacodecdec.h mediacodec_wrapper.h mediacodec_sw_buffer.h


+ 0
- 1
libavcodec/allcodecs.c View File

@@ -599,7 +599,6 @@ void avcodec_register_all(void)
REGISTER_ENCDEC (LIBSPEEX, libspeex);
REGISTER_ENCODER(LIBTHEORA, libtheora);
REGISTER_ENCODER(LIBTWOLAME, libtwolame);
REGISTER_ENCDEC (LIBUTVIDEO, libutvideo);
REGISTER_ENCODER(LIBVO_AMRWBENC, libvo_amrwbenc);
REGISTER_ENCDEC (LIBVORBIS, libvorbis);
REGISTER_ENCDEC (LIBVPX_VP8, libvpx_vp8);


+ 0
- 72
libavcodec/libutvideo.h View File

@@ -1,72 +0,0 @@
/*
* Copyright (c) 2011-2012 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),
* 'ULH0' (YCbCr 4:2:0 BT.709), 'ULH2' (YCbCr 4:2:2 BT.709)
*/

#ifndef AVCODEC_LIBUTVIDEO_H
#define AVCODEC_LIBUTVIDEO_H

#include <stdlib.h>
#include <utvideo/utvideo.h>
#include <utvideo/Codec.h>

/*
* Ut Video version 12.0.0 changed the RGB format names and removed
* the _WIN names, so if the new names are absent, define them
* against the old names so compatibility with pre-v12 versions
* is maintained.
*/
#if !defined(UTVF_NFCC_BGR_BU)
#define UTVF_NFCC_BGR_BU UTVF_RGB24_WIN
#endif

#if !defined(UTVF_NFCC_BGRA_BU)
#define UTVF_NFCC_BGRA_BU UTVF_RGB32_WIN
#endif

/*
* Ut Video version 13.0.1 introduced new BT.709 variants.
* Special-case these and only use them if v13 is detected.
*/
#if defined(UTVF_HDYC)
#define UTV_BT709
#endif

typedef struct {
uint32_t version;
uint32_t original_format;
uint32_t frameinfo_size;
uint32_t flags;
} UtVideoExtra;

typedef struct {
const AVClass *c;
CCodec *codec;
unsigned int buf_size;
uint8_t *buffer;
int pred;
} UtVideoContext;

#endif /* AVCODEC_LIBUTVIDEO_H */

+ 0
- 279
libavcodec/libutvideodec.cpp View File

@@ -1,279 +0,0 @@
/*
* Copyright (c) 2011 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),
* 'ULH0' (YCbCr 4:2:0 BT.709), 'ULH2' (YCbCr 4:2:2 BT.709)
*/

extern "C" {
#include "avcodec.h"
#include "libavutil/imgutils.h"
}

#include "libutvideo.h"
#include "get_bits.h"

static av_cold int utvideo_decode_init(AVCodecContext *avctx)
{
UtVideoContext *utv = (UtVideoContext *)avctx->priv_data;
UtVideoExtra info;
int format;
int begin_ret;

if (avctx->extradata_size != 16 && avctx->extradata_size != 8 ) {
av_log(avctx, AV_LOG_ERROR, "Extradata size (%d) mismatch.\n", avctx->extradata_size);
return -1;
}

/* Read extradata */
info.version = AV_RL32(avctx->extradata);
info.original_format = AV_RL32(avctx->extradata + 4);
info.frameinfo_size = AV_RL32(avctx->extradata + 8);
info.flags = AV_RL32(avctx->extradata + 12);

/* Pick format based on FOURCC */
switch (avctx->codec_tag) {
#ifdef UTV_BT709
case MKTAG('U', 'L', 'H', '0'):
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
avctx->colorspace = AVCOL_SPC_BT709;
format = UTVF_YV12;
break;
case MKTAG('U', 'L', 'H', '2'):
avctx->pix_fmt = AV_PIX_FMT_YUYV422;
avctx->colorspace = AVCOL_SPC_BT709;
format = UTVF_YUY2;
break;
#endif
case MKTAG('U', 'L', 'Y', '0'):
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
format = UTVF_YV12;
break;
case MKTAG('U', 'L', 'Y', '2'):
avctx->pix_fmt = AV_PIX_FMT_YUYV422;
format = UTVF_YUY2;
break;
case MKTAG('U', 'L', 'R', 'G'):
avctx->pix_fmt = AV_PIX_FMT_BGR24;
format = UTVF_NFCC_BGR_BU;
break;
case MKTAG('U', 'L', 'R', 'A'):
avctx->pix_fmt = AV_PIX_FMT_RGB32;
format = UTVF_NFCC_BGRA_BU;
break;
#ifdef UTVF_UQY2
case MKTAG('U', 'Q', 'Y', '2'):
avctx->pix_fmt = AV_PIX_FMT_YUV422P10;
format = UTVF_v210;
break;
#endif
default:
av_log(avctx, AV_LOG_ERROR,
"Not a Ut Video FOURCC: %X\n", avctx->codec_tag);
return -1;
}

/* Only allocate the buffer once */
utv->buf_size = av_image_get_buffer_size(avctx->pix_fmt, avctx->width, avctx->height, 1);
#ifdef UTVF_UQY2
if (format == UTVF_v210)
utv->buf_size += avctx->height * ((avctx->width + 47) / 48) * 128; // the linesize used by the decoder, this does not seem to be exported
#endif
utv->buffer = (uint8_t *)av_malloc(utv->buf_size * sizeof(uint8_t));

if (utv->buffer == NULL) {
av_log(avctx, AV_LOG_ERROR, "Unable to allocate output buffer.\n");
return -1;
}

/* Allocate the output frame */
avctx->coded_frame = av_frame_alloc();

/* Is it interlaced? */
avctx->coded_frame->interlaced_frame = info.flags & 0x800 ? 1 : 0;

/* Apparently Ut Video doesn't store this info... */
avctx->coded_frame->top_field_first = 1;

/*
* 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 Decoding */
begin_ret = utv->codec->DecodeBegin(format, avctx->width, avctx->height,
CBGROSSWIDTH_WINDOWS, &info, sizeof(UtVideoExtra));

/* Check to see if the decoder initlized properly */
if (begin_ret != 0) {
av_log(avctx, AV_LOG_ERROR,
"Could not initialize decoder: %d\n", begin_ret);
return -1;
}

return 0;
}

static int utvideo_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt)
{
UtVideoContext *utv = (UtVideoContext *)avctx->priv_data;
AVFrame *pic = avctx->coded_frame;
int w = avctx->width, h = avctx->height;

/* Set flags */
pic->pict_type = AV_PICTURE_TYPE_I;
pic->key_frame = 1;

/* Decode the frame */
utv->codec->DecodeFrame(utv->buffer, avpkt->data, true);

/* Set the output data depending on the colorspace */
switch (avctx->pix_fmt) {
case AV_PIX_FMT_YUV420P:
pic->linesize[0] = w;
pic->linesize[1] = pic->linesize[2] = w / 2;
pic->data[0] = utv->buffer;
pic->data[2] = utv->buffer + (w * h);
pic->data[1] = pic->data[2] + (w * h / 4);
break;
case AV_PIX_FMT_YUYV422:
pic->linesize[0] = w * 2;
pic->data[0] = utv->buffer;
break;
case AV_PIX_FMT_YUV422P10: {
uint16_t *y, *u, *v;
int i,j;
int linesize = ((w + 47) / 48) * 128;

pic->linesize[0] = w * 2;
pic->linesize[1] =
pic->linesize[2] = w;
pic->data[0] = utv->buffer + linesize * h;
pic->data[1] = pic->data[0] + h*pic->linesize[0];
pic->data[2] = pic->data[1] + h*pic->linesize[1];
y = (uint16_t*)pic->data[0];
u = (uint16_t*)pic->data[1];
v = (uint16_t*)pic->data[2];
for (j = 0; j < h; j++) {
const uint8_t *in = utv->buffer + j * linesize;

for (i = 0; i + 1 < w; i += 6, in += 4) {
unsigned a,b;
a = AV_RL32(in);
in += 4;
b = AV_RL32(in);
*u++ = (a ) & 0x3FF;
*y++ = (a>>10) & 0x3FF;
*v++ = (a>>20) & 0x3FF;
*y++ = (b ) & 0x3FF;

if (i + 3 >= w)
break;

in += 4;
a = AV_RL32(in);
*u++ = (b>>10) & 0x3FF;
*y++ = (b>>20) & 0x3FF;
*v++ = (a ) & 0x3FF;
*y++ = (a>>10) & 0x3FF;

if (i + 5 >= w)
break;

in += 4;
b = AV_RL32(in);
*u++ = (a>>20) & 0x3FF;
*y++ = (b ) & 0x3FF;
*v++ = (b>>10) & 0x3FF;
*y++ = (b>>20) & 0x3FF;
}
}
break;
}
case AV_PIX_FMT_BGR24:
case AV_PIX_FMT_RGB32:
/* Make the linesize negative, since Ut Video uses bottom-up BGR */
pic->linesize[0] = -1 * w * (avctx->pix_fmt == AV_PIX_FMT_BGR24 ? 3 : 4);
pic->data[0] = utv->buffer + utv->buf_size + pic->linesize[0];
break;
}
pic->width = w;
pic->height = h;
pic->format = avctx->pix_fmt;

if (avctx->refcounted_frames) {
int ret = av_frame_ref((AVFrame*)data, pic);
if (ret < 0)
return ret;
} else {
av_frame_move_ref((AVFrame*)data, pic);
}

*got_frame = 1;

return avpkt->size;
}

static av_cold int utvideo_decode_close(AVCodecContext *avctx)
{
UtVideoContext *utv = (UtVideoContext *)avctx->priv_data;

/* Free output */
av_frame_free(&avctx->coded_frame);
av_freep(&utv->buffer);

/* Finish decoding and clean up the instance */
utv->codec->DecodeEnd();
CCodec::DeleteInstance(utv->codec);

return 0;
}

AVCodec ff_libutvideo_decoder = {
"libutvideo",
NULL_IF_CONFIG_SMALL("Ut Video"),
AVMEDIA_TYPE_VIDEO,
AV_CODEC_ID_UTVIDEO,
0, //capabilities
NULL, //supported_framerates
NULL, //pix_fmts
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_decode_init,
NULL, //encode
NULL, //encode2
utvideo_decode_frame,
utvideo_decode_close,
};

+ 0
- 281
libavcodec/libutvideoenc.cpp View File

@@ -1,281 +0,0 @@
/*
* 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),
* 'ULH0' (YCbCr 4:2:0 BT.709), 'ULH2' (YCbCr 4:2:2 BT.709)
*/

extern "C" {
#include "libavutil/opt.h"
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#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;
int ret;

switch (avctx->pix_fmt) {
case AV_PIX_FMT_YUV420P:
in_format = UTVF_YV12;
avctx->bits_per_coded_sample = 12;
if (avctx->colorspace == AVCOL_SPC_BT709)
avctx->codec_tag = MKTAG('U', 'L', 'H', '0');
else
avctx->codec_tag = MKTAG('U', 'L', 'Y', '0');
break;
case AV_PIX_FMT_YUYV422:
in_format = UTVF_YUYV;
avctx->bits_per_coded_sample = 16;
if (avctx->colorspace == AVCOL_SPC_BT709)
avctx->codec_tag = MKTAG('U', 'L', 'H', '2');
else
avctx->codec_tag = MKTAG('U', 'L', 'Y', '2');
break;
case AV_PIX_FMT_BGR24:
in_format = UTVF_NFCC_BGR_BU;
avctx->bits_per_coded_sample = 24;
avctx->codec_tag = MKTAG('U', 'L', 'R', 'G');
break;
case AV_PIX_FMT_RGB32:
in_format = UTVF_NFCC_BGRA_BU;
avctx->bits_per_coded_sample = 32;
avctx->codec_tag = MKTAG('U', 'L', 'R', 'A');
break;
default:
return AVERROR(EINVAL);
}

#if FF_API_PRIVATE_OPT
FF_DISABLE_DEPRECATION_WARNINGS
if (avctx->prediction_method)
utv->pred = avctx->prediction_method;
FF_ENABLE_DEPRECATION_WARNINGS
#endif

/* Check before we alloc anything */
if (utv->pred != 0 && utv->pred != 2) {
av_log(avctx, AV_LOG_ERROR, "Invalid prediction method.\n");
return AVERROR(EINVAL);
}

flags = ((utv->pred + 1) << 8) | (avctx->thread_count - 1);

avctx->priv_data = utv;

/* Alloc extradata buffer */
info = (UtVideoExtra *)av_malloc(sizeof(*info));

if (!info) {
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.
*/
ret = av_image_get_buffer_size(avctx->pix_fmt, avctx->width, avctx->height, 1);
if (ret < 0) {
av_free(info);
return ret;
}
utv->buf_size = ret;

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");
av_free(info);
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_packet2(avctx, pkt, utv->buf_size, 0)) < 0)
return ret;

dst = pkt->data;

/* Move input if needed data into Ut Video friendly buffer */
switch (avctx->pix_fmt) {
case AV_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 AV_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 AV_PIX_FMT_BGR24:
case AV_PIX_FMT_RGB32:
/* Ut Video takes bottom-up BGR */
rgb_size = avctx->pix_fmt == AV_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_assert2(keyframe == true);

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->extradata);
av_freep(&utv->buffer);

utv->codec->EncodeEnd();
CCodec::DeleteInstance(utv->codec);

return 0;
}

#define OFFSET(x) offsetof(UtVideoContext, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "pred", "Prediction method", OFFSET(pred), AV_OPT_TYPE_INT, 0, 0, 2, VE, "pred" },
{ "left", NULL, 0, AV_OPT_TYPE_CONST, 0, INT_MIN, INT_MAX, VE, "pred" },
{ "median", NULL, 0, AV_OPT_TYPE_CONST, 2, INT_MIN, INT_MAX, VE, "pred" },
{ NULL },
};

static const AVClass utvideo_class = {
"libutvideo",
av_default_item_name,
options,
LIBAVUTIL_VERSION_INT,
0,
0,
NULL,
NULL,
AV_CLASS_CATEGORY_NA,
NULL,
NULL,
};

AVCodec ff_libutvideo_encoder = {
"libutvideo",
NULL_IF_CONFIG_SMALL("Ut Video"),
AVMEDIA_TYPE_VIDEO,
AV_CODEC_ID_UTVIDEO,
AV_CODEC_CAP_AUTO_THREADS | (int)AV_CODEC_CAP_LOSSLESS | AV_CODEC_CAP_INTRA_ONLY,
NULL, /* supported_framerates */
(const enum AVPixelFormat[]) {
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUYV422, AV_PIX_FMT_BGR24,
AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE
},
NULL, /* supported_samplerates */
NULL, /* sample_fmts */
NULL, /* channel_layouts */
0, /* max_lowres */
&utvideo_class, /* 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 */
};

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