libopenjpeg: introduce encoding support

Based on FFmpeg version from
commit 713a7854e06964abc8f7d015b94acbed27769d24

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

1 files changed, 437 insertions, 0 deletions

diff --git a/libavcodec/libopenjpegenc.c b/libavcodec/libopenjpegenc.c
new file mode 100644
index 0000000000..6a9e138cc8
--- /dev/null
+++ b/libavcodec/libopenjpegenc.c
@@ -0,0 +1,437 @@
+/*
+ * JPEG 2000 encoding support via OpenJPEG
+ * Copyright (c) 2011 Michael Bradshaw <mbradshaw@sorensonmedia.com>
+ *
+ * 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
+* JPEG 2000 encoder using libopenjpeg
+*/
+
+#define  OPJ_STATIC
+#include <openjpeg.h>
+
+#include "libavutil/opt.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/intreadwrite.h"
+#include "avcodec.h"
+#include "internal.h"
+
+typedef struct {
+    AVClass *avclass;
+    opj_image_t *image;
+    opj_cparameters_t enc_params;
+    opj_cinfo_t *compress;
+    opj_event_mgr_t event_mgr;
+    int format;
+    int profile;
+    int prog_order;
+    int cinema_mode;
+    int numresolution;
+    int numlayers;
+    int disto_alloc;
+    int fixed_alloc;
+    int fixed_quality;
+} LibOpenJPEGContext;
+
+static void error_callback(const char *msg, void *data)
+{
+    av_log(data, AV_LOG_ERROR, "%s\n", msg);
+}
+
+static void warning_callback(const char *msg, void *data)
+{
+    av_log(data, AV_LOG_WARNING, "%s\n", msg);
+}
+
+static void info_callback(const char *msg, void *data)
+{
+    av_log(data, AV_LOG_DEBUG, "%s\n", msg);
+}
+
+static opj_image_t *libopenjpeg_create_image(AVCodecContext *avctx,
+                                             opj_cparameters_t *parameters)
+{
+    opj_image_cmptparm_t *cmptparm;
+    OPJ_COLOR_SPACE color_space;
+    opj_image_t *img;
+    int i;
+    int sub_dx[4];
+    int sub_dy[4];
+    int numcomps = av_pix_fmt_descriptors[avctx->pix_fmt].nb_components;
+
+    sub_dx[0] = sub_dx[3] = 1;
+    sub_dy[0] = sub_dy[3] = 1;
+    sub_dx[1] = sub_dx[2] =
+        1 << av_pix_fmt_descriptors[avctx->pix_fmt].log2_chroma_w;
+    sub_dy[1] = sub_dy[2] =
+        1 << av_pix_fmt_descriptors[avctx->pix_fmt].log2_chroma_h;
+
+
+    switch (avctx->pix_fmt) {
+    case PIX_FMT_GRAY8:
+    case PIX_FMT_GRAY16:
+    case PIX_FMT_Y400A:
+        color_space = CLRSPC_GRAY;
+        break;
+    case PIX_FMT_RGB24:
+    case PIX_FMT_RGBA:
+    case PIX_FMT_RGB48:
+        color_space = CLRSPC_SRGB;
+        break;
+    case PIX_FMT_YUV410P:
+    case PIX_FMT_YUV411P:
+    case PIX_FMT_YUV420P:
+    case PIX_FMT_YUV422P:
+    case PIX_FMT_YUV440P:
+    case PIX_FMT_YUV444P:
+    case PIX_FMT_YUVA420P:
+    case PIX_FMT_YUV420P9:
+    case PIX_FMT_YUV422P9:
+    case PIX_FMT_YUV444P9:
+    case PIX_FMT_YUV420P10:
+    case PIX_FMT_YUV422P10:
+    case PIX_FMT_YUV444P10:
+    case PIX_FMT_YUV420P16:
+    case PIX_FMT_YUV422P16:
+    case PIX_FMT_YUV444P16:
+        color_space = CLRSPC_SYCC;
+        break;
+    default:
+        av_log(avctx, AV_LOG_ERROR,
+               "The requested pixel format '%s' is not supported\n",
+               av_get_pix_fmt_name(avctx->pix_fmt));
+        return NULL;
+    }
+
+    cmptparm = av_mallocz(numcomps * sizeof(*cmptparm));
+    if (!cmptparm) {
+        av_log(avctx, AV_LOG_ERROR, "Not enough memory");
+        return NULL;
+    }
+
+    for (i = 0; i < numcomps; i++) {
+        cmptparm[i].prec =
+            av_pix_fmt_descriptors[avctx->pix_fmt].comp[i].depth_minus1 + 1;
+        cmptparm[i].bpp  =
+            av_pix_fmt_descriptors[avctx->pix_fmt].comp[i].depth_minus1 + 1;
+        cmptparm[i].sgnd = 0;
+        cmptparm[i].dx   = sub_dx[i];
+        cmptparm[i].dy   = sub_dy[i];
+        cmptparm[i].w    = avctx->width / sub_dx[i];
+        cmptparm[i].h    = avctx->height / sub_dy[i];
+    }
+
+    img = opj_image_create(numcomps, cmptparm, color_space);
+    av_freep(&cmptparm);
+    return img;
+}
+
+static av_cold int libopenjpeg_encode_init(AVCodecContext *avctx)
+{
+    LibOpenJPEGContext *ctx = avctx->priv_data;
+    int err = AVERROR(ENOMEM);
+
+    opj_set_default_encoder_parameters(&ctx->enc_params);
+
+    ctx->enc_params.cp_rsiz          = ctx->profile;
+    ctx->enc_params.mode             = !!avctx->global_quality;
+    ctx->enc_params.cp_cinema        = ctx->cinema_mode;
+    ctx->enc_params.prog_order       = ctx->prog_order;
+    ctx->enc_params.numresolution    = ctx->numresolution;
+    ctx->enc_params.cp_disto_alloc   = ctx->disto_alloc;
+    ctx->enc_params.cp_fixed_alloc   = ctx->fixed_alloc;
+    ctx->enc_params.cp_fixed_quality = ctx->fixed_quality;
+    ctx->enc_params.tcp_numlayers    = ctx->numlayers;
+    ctx->enc_params.tcp_rates[0]     = FFMAX(avctx->compression_level, 0) * 2;
+
+    ctx->compress = opj_create_compress(ctx->format);
+    if (!ctx->compress) {
+        av_log(avctx, AV_LOG_ERROR, "Error creating the compressor\n");
+        return AVERROR(ENOMEM);
+    }
+
+    avctx->coded_frame = avcodec_alloc_frame();
+    if (!avctx->coded_frame) {
+        av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
+        goto fail;
+    }
+
+    ctx->image = libopenjpeg_create_image(avctx, &ctx->enc_params);
+    if (!ctx->image) {
+        av_log(avctx, AV_LOG_ERROR, "Error creating the mj2 image\n");
+        err = AVERROR(EINVAL);
+        goto fail;
+    }
+
+    ctx->event_mgr.info_handler    = info_callback;
+    ctx->event_mgr.error_handler   = error_callback;
+    ctx->event_mgr.warning_handler = warning_callback;
+    opj_set_event_mgr((opj_common_ptr)ctx->compress, &ctx->event_mgr, avctx);
+
+    return 0;
+
+fail:
+    av_freep(&ctx->compress);
+    av_freep(&avctx->coded_frame);
+    return err;
+}
+
+static void libopenjpeg_copy_packed8(AVCodecContext *avctx,
+                                     const AVFrame *frame, opj_image_t *image)
+{
+    int compno;
+    int x, y;
+    int image_index, frame_index;
+    const int numcomps = image->numcomps;
+
+    for (compno = 0; compno < numcomps; ++compno) {
+        for (y = 0; y < avctx->height; ++y) {
+            image_index = y * avctx->width;
+            frame_index = y * frame->linesize[0] + compno;
+            for (x = 0; x < avctx->width; ++x) {
+                image->comps[compno].data[image_index++] =
+                    frame->data[0][frame_index];
+                frame_index += numcomps;
+            }
+        }
+    }
+}
+
+static void libopenjpeg_copy_packed16(AVCodecContext *avctx,
+                                      const AVFrame *frame, opj_image_t *image)
+{
+    int compno;
+    int x, y;
+    int image_index, frame_index;
+    const int numcomps = image->numcomps;
+    uint16_t *frame_ptr = (uint16_t*)frame->data[0];
+
+    for (compno = 0; compno < numcomps; ++compno) {
+        for (y = 0; y < avctx->height; ++y) {
+            image_index = y * avctx->width;
+            frame_index = y * (frame->linesize[0] / 2) + compno;
+            for (x = 0; x < avctx->width; ++x) {
+                image->comps[compno].data[image_index++] =
+                    frame_ptr[frame_index];
+                frame_index += numcomps;
+            }
+        }
+    }
+}
+
+static void libopenjpeg_copy_unpacked8(AVCodecContext *avctx,
+                                       const AVFrame *frame, opj_image_t *image)
+{
+    int compno;
+    int x, y;
+    int width, height;
+    int image_index, frame_index;
+    const int numcomps = image->numcomps;
+
+    for (compno = 0; compno < numcomps; ++compno) {
+        width  = avctx->width  / image->comps[compno].dx;
+        height = avctx->height / image->comps[compno].dy;
+        for (y = 0; y < height; ++y) {
+            image_index = y * width;
+            frame_index = y * frame->linesize[compno];
+            for (x = 0; x < width; ++x) {
+                image->comps[compno].data[image_index++] =
+                    frame->data[compno][frame_index++];
+            }
+        }
+    }
+}
+
+static void libopenjpeg_copy_unpacked16(AVCodecContext *avctx,
+                                        const AVFrame *frame,
+                                        opj_image_t *image)
+{
+    int compno;
+    int x, y;
+    int width, height;
+    int image_index, frame_index;
+    const int numcomps = image->numcomps;
+    uint16_t *frame_ptr;
+
+    for (compno = 0; compno < numcomps; ++compno) {
+        width  = avctx->width  / image->comps[compno].dx;
+        height = avctx->height / image->comps[compno].dy;
+        frame_ptr = (uint16_t*)frame->data[compno];
+        for (y = 0; y < height; ++y) {
+            image_index = y * width;
+            frame_index = y * (frame->linesize[compno] / 2);
+            for (x = 0; x < width; ++x) {
+                image->comps[compno].data[image_index++] =
+                    frame_ptr[frame_index++];
+            }
+        }
+    }
+}
+
+static int libopenjpeg_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                                    const AVFrame *frame, int *got_packet)
+{
+    LibOpenJPEGContext *ctx = avctx->priv_data;
+    opj_cinfo_t *compress = ctx->compress;
+    opj_image_t *image = ctx->image;
+    opj_cio_t *stream;
+    int ret, len;
+
+    // x0, y0 is the top left corner of the image
+    // x1, y1 is the width, height of the reference grid
+    image->x0 = 0;
+    image->y0 = 0;
+    image->x1 = (avctx->width - 1)  * ctx->enc_params.subsampling_dx + 1;
+    image->y1 = (avctx->height - 1) * ctx->enc_params.subsampling_dy + 1;
+
+    switch (avctx->pix_fmt) {
+    case PIX_FMT_RGB24:
+    case PIX_FMT_RGBA:
+    case PIX_FMT_Y400A:
+        libopenjpeg_copy_packed8(avctx, frame, image);
+        break;
+    case PIX_FMT_RGB48:
+        libopenjpeg_copy_packed16(avctx, frame, image);
+        break;
+    case PIX_FMT_GRAY8:
+    case PIX_FMT_YUV410P:
+    case PIX_FMT_YUV411P:
+    case PIX_FMT_YUV420P:
+    case PIX_FMT_YUV422P:
+    case PIX_FMT_YUV440P:
+    case PIX_FMT_YUV444P:
+    case PIX_FMT_YUVA420P:
+        libopenjpeg_copy_unpacked8(avctx, frame, image);
+        break;
+    case PIX_FMT_GRAY16:
+    case PIX_FMT_YUV420P9:
+    case PIX_FMT_YUV422P9:
+    case PIX_FMT_YUV444P9:
+    case PIX_FMT_YUV444P10:
+    case PIX_FMT_YUV422P10:
+    case PIX_FMT_YUV420P10:
+    case PIX_FMT_YUV444P16:
+    case PIX_FMT_YUV422P16:
+    case PIX_FMT_YUV420P16:
+        libopenjpeg_copy_unpacked16(avctx, frame, image);
+        break;
+    default:
+        av_log(avctx, AV_LOG_ERROR,
+               "The frame's pixel format '%s' is not supported\n",
+               av_get_pix_fmt_name(avctx->pix_fmt));
+        return AVERROR(EINVAL);
+        break;
+    }
+
+    opj_setup_encoder(compress, &ctx->enc_params, image);
+    stream = opj_cio_open((opj_common_ptr)compress, NULL, 0);
+    if (!stream) {
+        av_log(avctx, AV_LOG_ERROR, "Error creating the cio stream\n");
+        return AVERROR(ENOMEM);
+    }
+
+    if (!opj_encode(compress, stream, image, NULL)) {
+        opj_cio_close(stream);
+        av_log(avctx, AV_LOG_ERROR, "Error during the opj encode\n");
+        return -1;
+    }
+
+    len = cio_tell(stream);
+    if ((ret = ff_alloc_packet(pkt, len)) < 0) {
+        opj_cio_close(stream);
+        return ret;
+    }
+
+    memcpy(pkt->data, stream->buffer, len);
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+    opj_cio_close(stream);
+    return 0;
+}
+
+static av_cold int libopenjpeg_encode_close(AVCodecContext *avctx)
+{
+    LibOpenJPEGContext *ctx = avctx->priv_data;
+
+    opj_destroy_compress(ctx->compress);
+    opj_image_destroy(ctx->image);
+    av_freep(&avctx->coded_frame);
+    return 0 ;
+}
+
+#define OFFSET(x) offsetof(LibOpenJPEGContext, x)
+#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+    { "format",        "Codec Format",      OFFSET(format),        AV_OPT_TYPE_INT,   { CODEC_JP2   }, CODEC_J2K, CODEC_JP2,   VE, "format"      },
+    { "j2k",           NULL,                0,                     AV_OPT_TYPE_CONST, { CODEC_J2K   }, 0,         0,           VE, "format"      },
+    { "jp2",           NULL,                0,                     AV_OPT_TYPE_CONST, { CODEC_JP2   }, 0,         0,           VE, "format"      },
+    { "profile",       NULL,                OFFSET(profile),       AV_OPT_TYPE_INT,   { STD_RSIZ    }, STD_RSIZ,  CINEMA4K,    VE, "profile"     },
+    { "jpeg2000",      NULL,                0,                     AV_OPT_TYPE_CONST, { STD_RSIZ    }, 0,         0,           VE, "profile"     },
+    { "cinema2k",      NULL,                0,                     AV_OPT_TYPE_CONST, { CINEMA2K    }, 0,         0,           VE, "profile"     },
+    { "cinema4k",      NULL,                0,                     AV_OPT_TYPE_CONST, { CINEMA4K    }, 0,         0,           VE, "profile"     },
+    { "cinema_mode",   "Digital Cinema",    OFFSET(cinema_mode),   AV_OPT_TYPE_INT,   { OFF         }, OFF,       CINEMA4K_24, VE, "cinema_mode" },
+    { "off",           NULL,                0,                     AV_OPT_TYPE_CONST, { OFF         }, 0,         0,           VE, "cinema_mode" },
+    { "2k_24",         NULL,                0,                     AV_OPT_TYPE_CONST, { CINEMA2K_24 }, 0,         0,           VE, "cinema_mode" },
+    { "2k_48",         NULL,                0,                     AV_OPT_TYPE_CONST, { CINEMA2K_48 }, 0,         0,           VE, "cinema_mode" },
+    { "4k_24",         NULL,                0,                     AV_OPT_TYPE_CONST, { CINEMA4K_24 }, 0,         0,           VE, "cinema_mode" },
+    { "prog_order",    "Progression Order", OFFSET(prog_order),    AV_OPT_TYPE_INT,   { LRCP        }, LRCP,      CPRL,        VE, "prog_order"  },
+    { "lrcp",          NULL,                0,                     AV_OPT_TYPE_CONST, { LRCP        }, 0,         0,           VE, "prog_order"  },
+    { "rlcp",          NULL,                0,                     AV_OPT_TYPE_CONST, { RLCP        }, 0,         0,           VE, "prog_order"  },
+    { "rpcl",          NULL,                0,                     AV_OPT_TYPE_CONST, { RPCL        }, 0,         0,           VE, "prog_order"  },
+    { "pcrl",          NULL,                0,                     AV_OPT_TYPE_CONST, { PCRL        }, 0,         0,           VE, "prog_order"  },
+    { "cprl",          NULL,                0,                     AV_OPT_TYPE_CONST, { CPRL        }, 0,         0,           VE, "prog_order"  },
+    { "numresolution", NULL,                OFFSET(numresolution), AV_OPT_TYPE_INT,   { 6           }, 1,         10,          VE                },
+    { "numlayers",     NULL,                OFFSET(numlayers),     AV_OPT_TYPE_INT,   { 1           }, 1,         10,          VE                },
+    { "disto_alloc",   NULL,                OFFSET(disto_alloc),   AV_OPT_TYPE_INT,   { 1           }, 0,         1,           VE                },
+    { "fixed_alloc",   NULL,                OFFSET(fixed_alloc),   AV_OPT_TYPE_INT,   { 0           }, 0,         1,           VE                },
+    { "fixed_quality", NULL,                OFFSET(fixed_quality), AV_OPT_TYPE_INT,   { 0           }, 0,         1,           VE                },
+    { NULL },
+};
+
+static const AVClass class = {
+    .class_name = "libopenjpeg",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_libopenjpeg_encoder = {
+    .name           = "libopenjpeg",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = CODEC_ID_JPEG2000,
+    .priv_data_size = sizeof(LibOpenJPEGContext),
+    .init           = libopenjpeg_encode_init,
+    .encode2        = libopenjpeg_encode_frame,
+    .close          = libopenjpeg_encode_close,
+    .capabilities   = 0,
+    .pix_fmts       = (const enum PixelFormat[]){
+        PIX_FMT_RGB24, PIX_FMT_RGBA, PIX_FMT_RGB48,
+        PIX_FMT_GRAY8, PIX_FMT_GRAY16, PIX_FMT_Y400A,
+        PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUVA420P,
+        PIX_FMT_YUV440P, PIX_FMT_YUV444P,
+        PIX_FMT_YUV411P, PIX_FMT_YUV410P,
+        PIX_FMT_YUV420P9, PIX_FMT_YUV422P9, PIX_FMT_YUV444P9,
+        PIX_FMT_YUV420P10, PIX_FMT_YUV422P10, PIX_FMT_YUV444P10,
+        PIX_FMT_YUV420P16, PIX_FMT_YUV422P16, PIX_FMT_YUV444P16,
+        PIX_FMT_NONE
+    },
+    .long_name      = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
+    .priv_class     = &class,
+};