generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

libopenjpegenc: make dci compliant j2c

Browse Source 
Signed-off-by: Michael Bradshaw <mjbshaw@gmail.com>
This commit is contained in:
Michaël Cinquin 2013-02-03 23:53:39 -07:00 committed by Michael Bradshaw
parent b5f544a0f9
commit 60f06f986f
1 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
libavcodec/libopenjpegenc.c
View File

@ -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");