From 51a5ddfa017f5229ff18da58f7cef908fd312138 Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Thu, 19 Jul 2012 22:22:08 +0200 Subject: libopenjpeg: K&R formatting cosmetics --- libavcodec/libopenjpegdec.c | 134 ++++++++++++++++++++++++-------------------- 1 file changed, 73 insertions(+), 61 deletions(-) (limited to 'libavcodec/libopenjpegdec.c') diff --git a/libavcodec/libopenjpegdec.c b/libavcodec/libopenjpegdec.c index 4b3e8d6e48..6696ee5269 100644 --- a/libavcodec/libopenjpegdec.c +++ b/libavcodec/libopenjpegdec.c @@ -20,17 +20,18 @@ */ /** -* @file -* JPEG 2000 decoder using libopenjpeg -*/ + * @file + * JPEG 2000 decoder using libopenjpeg + */ + +#define OPJ_STATIC +#include -#include "libavutil/opt.h" #include "libavutil/imgutils.h" -#include "avcodec.h" #include "libavutil/intreadwrite.h" +#include "libavutil/opt.h" +#include "avcodec.h" #include "thread.h" -#define OPJ_STATIC -#include #define JP2_SIG_TYPE 0x6A502020 #define JP2_SIG_VALUE 0x0D0A870A @@ -45,10 +46,10 @@ typedef struct { static int check_image_attributes(opj_image_t *image) { - return image->comps[0].dx == image->comps[1].dx && - image->comps[1].dx == image->comps[2].dx && - image->comps[0].dy == image->comps[1].dy && - image->comps[1].dy == image->comps[2].dy && + return image->comps[0].dx == image->comps[1].dx && + image->comps[1].dx == image->comps[2].dx && + image->comps[0].dy == image->comps[1].dy && + image->comps[1].dy == image->comps[2].dy && image->comps[0].prec == image->comps[1].prec && image->comps[1].prec == image->comps[2].prec; } @@ -89,80 +90,91 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx, *data_size = 0; // Check if input is a raw jpeg2k codestream or in jp2 wrapping - if((AV_RB32(buf) == 12) && - (AV_RB32(buf + 4) == JP2_SIG_TYPE) && - (AV_RB32(buf + 8) == JP2_SIG_VALUE)) { + if ((AV_RB32(buf) == 12) && + (AV_RB32(buf + 4) == JP2_SIG_TYPE) && + (AV_RB32(buf + 8) == JP2_SIG_VALUE)) { dec = opj_create_decompress(CODEC_JP2); } else { - // If the AVPacket contains a jp2c box, then skip to - // the starting byte of the codestream. + /* If the AVPacket contains a jp2c box, then skip to + * the starting byte of the codestream. */ if (AV_RB32(buf + 4) == AV_RB32("jp2c")) buf += 8; dec = opj_create_decompress(CODEC_J2K); } - if(!dec) { + if (!dec) { av_log(avctx, AV_LOG_ERROR, "Error initializing decoder.\n"); return -1; } opj_set_event_mgr((opj_common_ptr)dec, NULL, NULL); ctx->dec_params.cp_limit_decoding = LIMIT_TO_MAIN_HEADER; - ctx->dec_params.cp_reduce = ctx->lowres; - ctx->dec_params.cp_layer = ctx->lowqual; + ctx->dec_params.cp_reduce = ctx->lowres; + ctx->dec_params.cp_layer = ctx->lowqual; // Tie decoder with decoding parameters opj_setup_decoder(dec, &ctx->dec_params); stream = opj_cio_open((opj_common_ptr)dec, buf, buf_size); - if(!stream) { - av_log(avctx, AV_LOG_ERROR, "Codestream could not be opened for reading.\n"); + + if (!stream) { + av_log(avctx, AV_LOG_ERROR, + "Codestream could not be opened for reading.\n"); opj_destroy_decompress(dec); return -1; } - // Decode the header only + // Decode the header only. image = opj_decode_with_info(dec, stream, NULL); opj_cio_close(stream); - if(!image) { + + if (!image) { av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n"); opj_destroy_decompress(dec); return -1; } + width = image->x1 - image->x0; height = image->y1 - image->y0; if (ctx->lowres) { - width = (width + (1 << ctx->lowres) - 1) >> ctx->lowres; + width = (width + (1 << ctx->lowres) - 1) >> ctx->lowres; height = (height + (1 << ctx->lowres) - 1) >> ctx->lowres; } - if(av_image_check_size(width, height, 0, avctx) < 0) { - av_log(avctx, AV_LOG_ERROR, "%dx%d dimension invalid.\n", width, height); + if (av_image_check_size(width, height, 0, avctx) < 0) { + av_log(avctx, AV_LOG_ERROR, + "%dx%d dimension invalid.\n", width, height); goto done; } + avcodec_set_dimensions(avctx, width, height); - switch(image->numcomps) - { - case 1: avctx->pix_fmt = PIX_FMT_GRAY8; - break; - case 3: if(check_image_attributes(image)) { - avctx->pix_fmt = PIX_FMT_RGB24; - } else { - avctx->pix_fmt = PIX_FMT_GRAY8; - av_log(avctx, AV_LOG_ERROR, "Only first component will be used.\n"); - } - break; - case 4: has_alpha = 1; - avctx->pix_fmt = PIX_FMT_RGBA; - break; - default: av_log(avctx, AV_LOG_ERROR, "%d components unsupported.\n", image->numcomps); - goto done; + switch (image->numcomps) { + case 1: + avctx->pix_fmt = PIX_FMT_GRAY8; + break; + case 3: + if (check_image_attributes(image)) { + avctx->pix_fmt = PIX_FMT_RGB24; + } else { + avctx->pix_fmt = PIX_FMT_GRAY8; + av_log(avctx, AV_LOG_ERROR, + "Only first component will be used.\n"); + } + break; + case 4: + has_alpha = 1; + avctx->pix_fmt = PIX_FMT_RGBA; + break; + default: + av_log(avctx, AV_LOG_ERROR, "%d components unsupported.\n", + image->numcomps); + goto done; } - if(picture->data[0]) + if (picture->data[0]) ff_thread_release_buffer(avctx, picture); - if(ff_thread_get_buffer(avctx, picture) < 0){ + if (ff_thread_get_buffer(avctx, picture) < 0) { av_log(avctx, AV_LOG_ERROR, "ff_thread_get_buffer() failed\n"); return -1; } @@ -170,32 +182,32 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx, ff_thread_finish_setup(avctx); ctx->dec_params.cp_limit_decoding = NO_LIMITATION; - // Tie decoder with decoding parameters + // Tie decoder with decoding parameters. opj_setup_decoder(dec, &ctx->dec_params); stream = opj_cio_open((opj_common_ptr)dec, buf, buf_size); - if(!stream) { - av_log(avctx, AV_LOG_ERROR, "Codestream could not be opened for reading.\n"); + if (!stream) { + av_log(avctx, AV_LOG_ERROR, + "Codestream could not be opened for reading.\n"); opj_destroy_decompress(dec); return -1; } - // Decode the codestream + // Decode the codestream. image = opj_decode_with_info(dec, stream, NULL); opj_cio_close(stream); - for(x = 0; x < image->numcomps; x++) { + for (x = 0; x < image->numcomps; x++) adjust[x] = FFMAX(image->comps[x].prec - 8, 0); - } - for(y = 0; y < avctx->height; y++) { - index = y*avctx->width; - img_ptr = picture->data[0] + y*picture->linesize[0]; - for(x = 0; x < avctx->width; x++, index++) { + for (y = 0; y < avctx->height; y++) { + index = y * avctx->width; + img_ptr = picture->data[0] + y * picture->linesize[0]; + for (x = 0; x < avctx->width; x++, index++) { *img_ptr++ = image->comps[0].data[index] >> adjust[0]; - if(image->numcomps > 2 && check_image_attributes(image)) { + if (image->numcomps > 2 && check_image_attributes(image)) { *img_ptr++ = image->comps[1].data[index] >> adjust[1]; *img_ptr++ = image->comps[2].data[index] >> adjust[2]; - if(has_alpha) + if (has_alpha) *img_ptr++ = image->comps[3].data[index] >> adjust[3]; } } @@ -203,7 +215,7 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx, *output = ctx->image; *data_size = sizeof(AVPicture); - ret = buf_size; + ret = buf_size; done: opj_image_destroy(image); @@ -215,17 +227,17 @@ static av_cold int libopenjpeg_decode_close(AVCodecContext *avctx) { LibOpenJPEGContext *ctx = avctx->priv_data; - if(ctx->image.data[0]) + if (ctx->image.data[0]) ff_thread_release_buffer(avctx, &ctx->image); - return 0 ; + return 0; } #define OFFSET(x) offsetof(LibOpenJPEGContext, x) #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM static const AVOption options[] = { - { "lowqual", "Limit the number of layers used for decoding", OFFSET(lowqual), AV_OPT_TYPE_INT, { 0 }, 0, INT_MAX, VD }, - { "lowres", "Lower the decoding resolution by a power of two", OFFSET(lowres), AV_OPT_TYPE_INT, { 0 }, 0, INT_MAX, VD }, + { "lowqual", "Limit the number of layers used for decoding", OFFSET(lowqual), AV_OPT_TYPE_INT, { 0 }, 0, INT_MAX, VD }, + { "lowres", "Lower the decoding resolution by a power of two", OFFSET(lowres), AV_OPT_TYPE_INT, { 0 }, 0, INT_MAX, VD }, { NULL }, }; -- cgit v1.2.3