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libopenjpegenc: allow changing encoding parameters 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Reviewed-by: Michael Bradshaw <mbradshaw@sorensonmedia.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Paul B Mahol 2012-03-25 23:33:53 +00:00 committed by Michael Niedermayer
parent dec8eb6b29
commit 67d5fcc989
1 changed files with 58 additions and 3 deletions
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61
libavcodec/libopenjpegenc.c
View File

@ -24,6 +24,7 @@
* JPEG 2000 encoder using libopenjpeg
*/
#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "libavutil/avassert.h"
#include "avcodec.h"
@ -33,10 +34,20 @@
#include <openjpeg.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 cinema_mode;
int prog_order;
int numresolution;
int numlayers;
int disto_alloc;
int fixed_alloc;
int fixed_quality;
} LibOpenJPEGContext;
static void error_callback(const char *msg, void *data)
@ -124,11 +135,19 @@ static av_cold int libopenjpeg_encode_init(AVCodecContext *avctx)
LibOpenJPEGContext *ctx = avctx->priv_data;
opj_set_default_encoder_parameters(&ctx->enc_params);
ctx->enc_params.tcp_numlayers = 1;
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->enc_params.cp_disto_alloc = 1;
ctx->compress = opj_create_compress(CODEC_J2K);
ctx->compress = opj_create_compress(ctx->format);
if (!ctx->compress) {
av_log(avctx, AV_LOG_ERROR, "Error creating the compressor\n");
return AVERROR(ENOMEM);
@ -381,6 +400,41 @@ static av_cold int libopenjpeg_encode_close(AVCodecContext *avctx)
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",
@ -400,4 +454,5 @@ AVCodec ff_libopenjpeg_encoder = {
PIX_FMT_YUV420P16,PIX_FMT_YUV422P16,PIX_FMT_YUV444P16,
PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
} ;
.priv_class = &class,
};