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libopenjpegenc: make dci compliant j2c

Signed-off-by: Michael Bradshaw <mjbshaw@gmail.com>
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1 parent b5f544a commit 60f06f986f81c5aa0497c4fa189f50a504896c81 @michaelcinquin michaelcinquin committed with Feb 4, 2013
Showing with 29 additions and 0 deletions.
  1. +29 −0 libavcodec/libopenjpegenc.c
@@ -188,6 +188,35 @@ static av_cold int libopenjpeg_encode_init(AVCodecContext *avctx)
ctx->enc_params.tcp_numlayers = ctx->numlayers;
ctx->enc_params.tcp_rates[0] = FFMAX(avctx->compression_level, 0) * 2;
+ if (ctx->cinema_mode > 0) {
+ ctx->enc_params.irreversible = 1;
+ ctx->enc_params.tcp_mct = 1;
+ ctx->enc_params.tile_size_on = 0;
+ /* no subsampling */
+ ctx->enc_params.cp_tdx=1;
+ ctx->enc_params.cp_tdy=1;
+ ctx->enc_params.subsampling_dx = 1;
+ ctx->enc_params.subsampling_dy = 1;
+ /* Tile and Image shall be at (0,0) */
+ ctx->enc_params.cp_tx0 = 0;
+ ctx->enc_params.cp_ty0 = 0;
+ ctx->enc_params.image_offset_x0 = 0;
+ ctx->enc_params.image_offset_y0 = 0;
+ /* Codeblock size= 32*32 */
+ ctx->enc_params.cblockw_init = 32;
+ ctx->enc_params.cblockh_init = 32;
+ ctx->enc_params.csty |= 0x01;
+ /* No ROI */
+ ctx->enc_params.roi_compno = -1;
+
+ if (ctx->enc_params.prog_order != CPRL) {
+ av_log(avctx, AV_LOG_ERROR, "prog_order forced to CPRL\n");
+ ctx->enc_params.prog_order = CPRL;
+ }
+ ctx->enc_params.tp_flag = 'C';
+ ctx->enc_params.tp_on = 1;
+ }
+
ctx->compress = opj_create_compress(ctx->format);
if (!ctx->compress) {
av_log(avctx, AV_LOG_ERROR, "Error creating the compressor\n");

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