[FFmpeg-devel] [PATCH 4/4] libopenjpegenc: allow changing encoding parameters
Paul B Mahol
onemda at gmail.com
Mon Mar 26 01:37:20 CEST 2012
Signed-off-by: Paul B Mahol <onemda at gmail.com>
---
libavcodec/libopenjpegenc.c | 62 ++++++++++++++++++++++++++++++++++++++++---
1 files changed, 58 insertions(+), 4 deletions(-)
diff --git a/libavcodec/libopenjpegenc.c b/libavcodec/libopenjpegenc.c
index 8eba40d..b357fcd 100644
--- a/libavcodec/libopenjpegenc.c
+++ b/libavcodec/libopenjpegenc.c
@@ -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 +135,18 @@ 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 +399,41 @@ 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 +453,5 @@ 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,
+};
--
1.7.7
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