FFmpeg: libavcodec/libopenjpegenc.c Source File

00001 /*
00002  * JPEG 2000 encoding support via OpenJPEG
00003  * Copyright (c) 2011 Michael Bradshaw <mbradshaw@sorensonmedia.com>
00004  *
00005  * This file is part of FFmpeg.
00006  *
00007  * FFmpeg is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * FFmpeg is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with FFmpeg; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00020  */
00021 
00027 #include "libavutil/opt.h"
00028 #include "libavutil/imgutils.h"
00029 #include "libavutil/avassert.h"
00030 #include "avcodec.h"
00031 #include "libavutil/intreadwrite.h"
00032 #include "internal.h"
00033 #define  OPJ_STATIC
00034 #include <openjpeg.h>
00035 
00036 typedef struct {
00037     AVClass *avclass;
00038     opj_image_t *image;
00039     opj_cparameters_t enc_params;
00040     opj_cinfo_t *compress;
00041     opj_event_mgr_t event_mgr;
00042     int format;
00043     int profile;
00044     int cinema_mode;
00045     int prog_order;
00046     int numresolution;
00047     int numlayers;
00048     int disto_alloc;
00049     int fixed_alloc;
00050     int fixed_quality;
00051 } LibOpenJPEGContext;
00052 
00053 static void error_callback(const char *msg, void *data)
00054 {
00055     av_log((AVCodecContext*)data, AV_LOG_ERROR, "libopenjpeg: %s\n", msg);
00056 }
00057 
00058 static void warning_callback(const char *msg, void *data)
00059 {
00060     av_log((AVCodecContext*)data, AV_LOG_WARNING, "libopenjpeg: %s\n", msg);
00061 }
00062 
00063 static opj_image_t *mj2_create_image(AVCodecContext *avctx, opj_cparameters_t *parameters)
00064 {
00065     opj_image_cmptparm_t *cmptparm;
00066     opj_image_t *img;
00067     int i;
00068     int sub_dx[4];
00069     int sub_dy[4];
00070     int numcomps;
00071     OPJ_COLOR_SPACE color_space = CLRSPC_UNKNOWN;
00072 
00073     sub_dx[0] = sub_dx[3] = 1;
00074     sub_dy[0] = sub_dy[3] = 1;
00075     sub_dx[1] = sub_dx[2] = 1<<av_pix_fmt_descriptors[avctx->pix_fmt].log2_chroma_w;
00076     sub_dy[1] = sub_dy[2] = 1<<av_pix_fmt_descriptors[avctx->pix_fmt].log2_chroma_h;
00077 
00078     numcomps = av_pix_fmt_descriptors[avctx->pix_fmt].nb_components;
00079 
00080     switch (avctx->pix_fmt) {
00081     case PIX_FMT_GRAY8:
00082     case PIX_FMT_GRAY8A:
00083     case PIX_FMT_GRAY16:
00084         color_space = CLRSPC_GRAY;
00085         break;
00086     case PIX_FMT_RGB24:
00087     case PIX_FMT_RGBA:
00088     case PIX_FMT_RGB48:
00089     case PIX_FMT_RGBA64:
00090         color_space = CLRSPC_SRGB;
00091         break;
00092     case PIX_FMT_YUV420P:
00093     case PIX_FMT_YUV422P:
00094     case PIX_FMT_YUV440P:
00095     case PIX_FMT_YUV444P:
00096     case PIX_FMT_YUVA420P:
00097     case PIX_FMT_YUV420P9:
00098     case PIX_FMT_YUV422P9:
00099     case PIX_FMT_YUV444P9:
00100     case PIX_FMT_YUV420P10:
00101     case PIX_FMT_YUV422P10:
00102     case PIX_FMT_YUV444P10:
00103     case PIX_FMT_YUV420P16:
00104     case PIX_FMT_YUV422P16:
00105     case PIX_FMT_YUV444P16:
00106         color_space = CLRSPC_SYCC;
00107         break;
00108     default:
00109         av_log(avctx, AV_LOG_ERROR, "The requested pixel format '%s' is not supported\n", av_get_pix_fmt_name(avctx->pix_fmt));
00110         return NULL;
00111     }
00112 
00113     cmptparm = av_mallocz(numcomps * sizeof(opj_image_cmptparm_t));
00114     if (!cmptparm) {
00115         av_log(avctx, AV_LOG_ERROR, "Not enough memory");
00116         return NULL;
00117     }
00118     for (i = 0; i < numcomps; i++) {
00119         cmptparm[i].prec = av_pix_fmt_descriptors[avctx->pix_fmt].comp[i].depth_minus1 + 1;
00120         cmptparm[i].bpp = av_pix_fmt_descriptors[avctx->pix_fmt].comp[i].depth_minus1 + 1;
00121         cmptparm[i].sgnd = 0;
00122         cmptparm[i].dx = sub_dx[i];
00123         cmptparm[i].dy = sub_dy[i];
00124         cmptparm[i].w = avctx->width / sub_dx[i];
00125         cmptparm[i].h = avctx->height / sub_dy[i];
00126     }
00127 
00128     img = opj_image_create(numcomps, cmptparm, color_space);
00129     av_freep(&cmptparm);
00130     return img;
00131 }
00132 
00133 static av_cold int libopenjpeg_encode_init(AVCodecContext *avctx)
00134 {
00135     LibOpenJPEGContext *ctx = avctx->priv_data;
00136 
00137     opj_set_default_encoder_parameters(&ctx->enc_params);
00138     ctx->enc_params.cp_rsiz = ctx->profile;
00139     ctx->enc_params.mode = !!avctx->global_quality;
00140     ctx->enc_params.cp_cinema = ctx->cinema_mode;
00141     ctx->enc_params.prog_order = ctx->prog_order;
00142     ctx->enc_params.numresolution = ctx->numresolution;
00143     ctx->enc_params.cp_disto_alloc = ctx->disto_alloc;
00144     ctx->enc_params.cp_fixed_alloc = ctx->fixed_alloc;
00145     ctx->enc_params.cp_fixed_quality = ctx->fixed_quality;
00146     ctx->enc_params.tcp_numlayers = ctx->numlayers;
00147     ctx->enc_params.tcp_rates[0] = FFMAX(avctx->compression_level, 0) * 2;
00148 
00149     ctx->compress = opj_create_compress(ctx->format);
00150     if (!ctx->compress) {
00151         av_log(avctx, AV_LOG_ERROR, "Error creating the compressor\n");
00152         return AVERROR(ENOMEM);
00153     }
00154 
00155     avctx->coded_frame = avcodec_alloc_frame();
00156     if (!avctx->coded_frame) {
00157         av_freep(&ctx->compress);
00158         av_log(avctx, AV_LOG_ERROR, "Error allocating coded frame\n");
00159         return AVERROR(ENOMEM);
00160     }
00161 
00162     ctx->image = mj2_create_image(avctx, &ctx->enc_params);
00163     if (!ctx->image) {
00164         av_freep(&ctx->compress);
00165         av_freep(&avctx->coded_frame);
00166         av_log(avctx, AV_LOG_ERROR, "Error creating the mj2 image\n");
00167         return AVERROR(EINVAL);
00168     }
00169 
00170     memset(&ctx->event_mgr, 0, sizeof(opj_event_mgr_t));
00171     ctx->event_mgr.error_handler = error_callback;
00172     ctx->event_mgr.warning_handler = warning_callback;
00173     ctx->event_mgr.info_handler = NULL;
00174     opj_set_event_mgr((opj_common_ptr)ctx->compress, &ctx->event_mgr, avctx);
00175 
00176     return 0;
00177 }
00178 
00179 static int libopenjpeg_copy_packed8(AVCodecContext *avctx, const AVFrame *frame, opj_image_t *image)
00180 {
00181     int compno;
00182     int x;
00183     int y;
00184     int image_index;
00185     int frame_index;
00186     const int numcomps = image->numcomps;
00187 
00188     for (compno = 0; compno < numcomps; ++compno) {
00189         if (image->comps[compno].w > frame->linesize[0] / numcomps) {
00190             av_log(avctx, AV_LOG_ERROR, "Error: frame's linesize is too small for the image\n");
00191             return 0;
00192         }
00193     }
00194 
00195     for (compno = 0; compno < numcomps; ++compno) {
00196         for (y = 0; y < avctx->height; ++y) {
00197             image_index = y * avctx->width;
00198             frame_index = y * frame->linesize[0] + compno;
00199             for (x = 0; x < avctx->width; ++x) {
00200                 image->comps[compno].data[image_index++] = frame->data[0][frame_index];
00201                 frame_index += numcomps;
00202             }
00203         }
00204     }
00205 
00206     return 1;
00207 }
00208 
00209 static int libopenjpeg_copy_packed16(AVCodecContext *avctx, const AVFrame *frame, opj_image_t *image)
00210 {
00211     int compno;
00212     int x;
00213     int y;
00214     int image_index;
00215     int frame_index;
00216     const int numcomps = image->numcomps;
00217     uint16_t *frame_ptr = (uint16_t*)frame->data[0];
00218 
00219     for (compno = 0; compno < numcomps; ++compno) {
00220         if (image->comps[compno].w > frame->linesize[0] / numcomps) {
00221             av_log(avctx, AV_LOG_ERROR, "Error: frame's linesize is too small for the image\n");
00222             return 0;
00223         }
00224     }
00225 
00226     for (compno = 0; compno < numcomps; ++compno) {
00227         for (y = 0; y < avctx->height; ++y) {
00228             image_index = y * avctx->width;
00229             frame_index = y * (frame->linesize[0] / 2) + compno;
00230             for (x = 0; x < avctx->width; ++x) {
00231                 image->comps[compno].data[image_index++] = frame_ptr[frame_index];
00232                 frame_index += numcomps;
00233             }
00234         }
00235     }
00236 
00237     return 1;
00238 }
00239 
00240 static int libopenjpeg_copy_unpacked8(AVCodecContext *avctx, const AVFrame *frame, opj_image_t *image)
00241 {
00242     int compno;
00243     int x;
00244     int y;
00245     int width;
00246     int height;
00247     int image_index;
00248     int frame_index;
00249     const int numcomps = image->numcomps;
00250 
00251     for (compno = 0; compno < numcomps; ++compno) {
00252         if (image->comps[compno].w > frame->linesize[compno]) {
00253             av_log(avctx, AV_LOG_ERROR, "Error: frame's linesize is too small for the image\n");
00254             return 0;
00255         }
00256     }
00257 
00258     for (compno = 0; compno < numcomps; ++compno) {
00259         width = avctx->width / image->comps[compno].dx;
00260         height = avctx->height / image->comps[compno].dy;
00261         for (y = 0; y < height; ++y) {
00262             image_index = y * width;
00263             frame_index = y * frame->linesize[compno];
00264             for (x = 0; x < width; ++x) {
00265                 image->comps[compno].data[image_index++] = frame->data[compno][frame_index++];
00266             }
00267         }
00268     }
00269 
00270     return 1;
00271 }
00272 
00273 static int libopenjpeg_copy_unpacked16(AVCodecContext *avctx, const AVFrame *frame, opj_image_t *image)
00274 {
00275     int compno;
00276     int x;
00277     int y;
00278     int width;
00279     int height;
00280     int image_index;
00281     int frame_index;
00282     const int numcomps = image->numcomps;
00283     uint16_t *frame_ptr;
00284 
00285     for (compno = 0; compno < numcomps; ++compno) {
00286         if (image->comps[compno].w > frame->linesize[compno]) {
00287             av_log(avctx, AV_LOG_ERROR, "Error: frame's linesize is too small for the image\n");
00288             return 0;
00289         }
00290     }
00291 
00292     for (compno = 0; compno < numcomps; ++compno) {
00293         width = avctx->width / image->comps[compno].dx;
00294         height = avctx->height / image->comps[compno].dy;
00295         frame_ptr = (uint16_t*)frame->data[compno];
00296         for (y = 0; y < height; ++y) {
00297             image_index = y * width;
00298             frame_index = y * (frame->linesize[compno] / 2);
00299             for (x = 0; x < width; ++x) {
00300                 image->comps[compno].data[image_index++] = frame_ptr[frame_index++];
00301             }
00302         }
00303     }
00304 
00305     return 1;
00306 }
00307 
00308 static int libopenjpeg_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
00309                                     const AVFrame *frame, int *got_packet)
00310 {
00311     LibOpenJPEGContext *ctx = avctx->priv_data;
00312     opj_cinfo_t *compress = ctx->compress;
00313     opj_image_t *image = ctx->image;
00314     opj_cio_t *stream;
00315     int cpyresult = 0;
00316     int ret, len;
00317 
00318     // x0, y0 is the top left corner of the image
00319     // x1, y1 is the width, height of the reference grid
00320     image->x0 = 0;
00321     image->y0 = 0;
00322     image->x1 = (avctx->width - 1) * ctx->enc_params.subsampling_dx + 1;
00323     image->y1 = (avctx->height - 1) * ctx->enc_params.subsampling_dy + 1;
00324 
00325     switch (avctx->pix_fmt) {
00326     case PIX_FMT_RGB24:
00327     case PIX_FMT_RGBA:
00328     case PIX_FMT_GRAY8A:
00329         cpyresult = libopenjpeg_copy_packed8(avctx, frame, image);
00330         break;
00331     case PIX_FMT_RGB48:
00332     case PIX_FMT_RGBA64:
00333         cpyresult = libopenjpeg_copy_packed16(avctx, frame, image);
00334         break;
00335     case PIX_FMT_GRAY8:
00336     case PIX_FMT_YUV420P:
00337     case PIX_FMT_YUV422P:
00338     case PIX_FMT_YUV440P:
00339     case PIX_FMT_YUV444P:
00340     case PIX_FMT_YUVA420P:
00341         cpyresult = libopenjpeg_copy_unpacked8(avctx, frame, image);
00342         break;
00343     case PIX_FMT_GRAY16:
00344     case PIX_FMT_YUV420P9:
00345     case PIX_FMT_YUV420P10:
00346     case PIX_FMT_YUV420P16:
00347     case PIX_FMT_YUV422P9:
00348     case PIX_FMT_YUV422P10:
00349     case PIX_FMT_YUV422P16:
00350     case PIX_FMT_YUV444P9:
00351     case PIX_FMT_YUV444P10:
00352     case PIX_FMT_YUV444P16:
00353         cpyresult = libopenjpeg_copy_unpacked16(avctx, frame, image);
00354         break;
00355     default:
00356         av_log(avctx, AV_LOG_ERROR, "The frame's pixel format '%s' is not supported\n", av_get_pix_fmt_name(avctx->pix_fmt));
00357         return AVERROR(EINVAL);
00358         break;
00359     }
00360 
00361     if (!cpyresult) {
00362         av_log(avctx, AV_LOG_ERROR, "Could not copy the frame data to the internal image buffer\n");
00363         return -1;
00364     }
00365 
00366     opj_setup_encoder(compress, &ctx->enc_params, image);
00367     stream = opj_cio_open((opj_common_ptr)compress, NULL, 0);
00368     if (!stream) {
00369         av_log(avctx, AV_LOG_ERROR, "Error creating the cio stream\n");
00370         return AVERROR(ENOMEM);
00371     }
00372 
00373     if (!opj_encode(compress, stream, image, NULL)) {
00374         opj_cio_close(stream);
00375         av_log(avctx, AV_LOG_ERROR, "Error during the opj encode\n");
00376         return -1;
00377     }
00378 
00379     len = cio_tell(stream);
00380     if ((ret = ff_alloc_packet2(avctx, pkt, len)) < 0) {
00381         opj_cio_close(stream);
00382         return ret;
00383     }
00384 
00385     memcpy(pkt->data, stream->buffer, len);
00386     pkt->flags |= AV_PKT_FLAG_KEY;
00387     *got_packet = 1;
00388     opj_cio_close(stream);
00389     return 0;
00390 }
00391 
00392 static av_cold int libopenjpeg_encode_close(AVCodecContext *avctx)
00393 {
00394     LibOpenJPEGContext *ctx = avctx->priv_data;
00395 
00396     opj_destroy_compress(ctx->compress);
00397     opj_image_destroy(ctx->image);
00398     av_freep(&avctx->coded_frame);
00399     return 0 ;
00400 }
00401 
00402 #define OFFSET(x) offsetof(LibOpenJPEGContext, x)
00403 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
00404 static const AVOption options[] = {
00405     { "format",        "Codec Format",      OFFSET(format),        AV_OPT_TYPE_INT,   { CODEC_JP2   }, CODEC_J2K, CODEC_JP2,   VE, "format"      },
00406     { "j2k",           NULL,                0,                     AV_OPT_TYPE_CONST, { CODEC_J2K   }, 0,         0,           VE, "format"      },
00407     { "jp2",           NULL,                0,                     AV_OPT_TYPE_CONST, { CODEC_JP2   }, 0,         0,           VE, "format"      },
00408     { "profile",       NULL,                OFFSET(profile),       AV_OPT_TYPE_INT,   { STD_RSIZ    }, STD_RSIZ,  CINEMA4K,    VE, "profile"     },
00409     { "jpeg2000",      NULL,                0,                     AV_OPT_TYPE_CONST, { STD_RSIZ    }, 0,         0,           VE, "profile"     },
00410     { "cinema2k",      NULL,                0,                     AV_OPT_TYPE_CONST, { CINEMA2K    }, 0,         0,           VE, "profile"     },
00411     { "cinema4k",      NULL,                0,                     AV_OPT_TYPE_CONST, { CINEMA4K    }, 0,         0,           VE, "profile"     },
00412     { "cinema_mode",   "Digital Cinema",    OFFSET(cinema_mode),   AV_OPT_TYPE_INT,   { OFF         }, OFF,       CINEMA4K_24, VE, "cinema_mode" },
00413     { "off",           NULL,                0,                     AV_OPT_TYPE_CONST, { OFF         }, 0,         0,           VE, "cinema_mode" },
00414     { "2k_24",         NULL,                0,                     AV_OPT_TYPE_CONST, { CINEMA2K_24 }, 0,         0,           VE, "cinema_mode" },
00415     { "2k_48",         NULL,                0,                     AV_OPT_TYPE_CONST, { CINEMA2K_48 }, 0,         0,           VE, "cinema_mode" },
00416     { "4k_24",         NULL,                0,                     AV_OPT_TYPE_CONST, { CINEMA4K_24 }, 0,         0,           VE, "cinema_mode" },
00417     { "prog_order",    "Progression Order", OFFSET(prog_order),    AV_OPT_TYPE_INT,   { LRCP        }, LRCP,      CPRL,        VE, "prog_order"  },
00418     { "lrcp",          NULL,                0,                     AV_OPT_TYPE_CONST, { LRCP        }, 0,         0,           VE, "prog_order"  },
00419     { "rlcp",          NULL,                0,                     AV_OPT_TYPE_CONST, { RLCP        }, 0,         0,           VE, "prog_order"  },
00420     { "rpcl",          NULL,                0,                     AV_OPT_TYPE_CONST, { RPCL        }, 0,         0,           VE, "prog_order"  },
00421     { "pcrl",          NULL,                0,                     AV_OPT_TYPE_CONST, { PCRL        }, 0,         0,           VE, "prog_order"  },
00422     { "cprl",          NULL,                0,                     AV_OPT_TYPE_CONST, { CPRL        }, 0,         0,           VE, "prog_order"  },
00423     { "numresolution", NULL,                OFFSET(numresolution), AV_OPT_TYPE_INT,   { 6           }, 1,         10,          VE                },
00424     { "numlayers",     NULL,                OFFSET(numlayers),     AV_OPT_TYPE_INT,   { 1           }, 1,         10,          VE                },
00425     { "disto_alloc",   NULL,                OFFSET(disto_alloc),   AV_OPT_TYPE_INT,   { 1           }, 0,         1,           VE                },
00426     { "fixed_alloc",   NULL,                OFFSET(fixed_alloc),   AV_OPT_TYPE_INT,   { 0           }, 0,         1,           VE                },
00427     { "fixed_quality", NULL,                OFFSET(fixed_quality), AV_OPT_TYPE_INT,   { 0           }, 0,         1,           VE                },
00428     { NULL },
00429 };
00430 
00431 static const AVClass class = {
00432     .class_name = "libopenjpeg",
00433     .item_name  = av_default_item_name,
00434     .option     = options,
00435     .version    = LIBAVUTIL_VERSION_INT,
00436 };
00437 
00438 AVCodec ff_libopenjpeg_encoder = {
00439     .name           = "libopenjpeg",
00440     .type           = AVMEDIA_TYPE_VIDEO,
00441     .id             = CODEC_ID_JPEG2000,
00442     .priv_data_size = sizeof(LibOpenJPEGContext),
00443     .init           = libopenjpeg_encode_init,
00444     .encode2        = libopenjpeg_encode_frame,
00445     .close          = libopenjpeg_encode_close,
00446     .capabilities   = 0,
00447     .pix_fmts = (const enum PixelFormat[]){PIX_FMT_RGB24,PIX_FMT_RGBA,PIX_FMT_RGB48,PIX_FMT_RGBA64,
00448                                            PIX_FMT_GRAY8,PIX_FMT_GRAY8A,PIX_FMT_GRAY16,
00449                                            PIX_FMT_YUV420P,PIX_FMT_YUV422P,PIX_FMT_YUVA420P,
00450                                            PIX_FMT_YUV440P,PIX_FMT_YUV444P,
00451                                            PIX_FMT_YUV420P9,PIX_FMT_YUV422P9,PIX_FMT_YUV444P9,
00452                                            PIX_FMT_YUV420P10,PIX_FMT_YUV422P10,PIX_FMT_YUV444P10,
00453                                            PIX_FMT_YUV420P16,PIX_FMT_YUV422P16,PIX_FMT_YUV444P16,
00454                                            PIX_FMT_NONE},
00455     .long_name = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
00456     .priv_class     = &class,
00457 };