diff options
author | Aurelien Jacobs <aurel@gnuage.org> | 2007-05-19 02:42:49 +0400 |
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committer | Aurelien Jacobs <aurel@gnuage.org> | 2007-05-19 02:42:49 +0400 |
commit | d9c9259f89af7f4a4a2029f1c1b9c0513e1b3a6d (patch) | |
tree | c13dcfc45e54e2cc603af5c4a20f423235523779 | |
parent | 56fd7cc584ae1862eed64972fa89334c2d221079 (diff) |
split ljpeg encoder out of mjpeg.c
Originally committed as revision 9057 to svn://svn.ffmpeg.org/ffmpeg/trunk
-rw-r--r-- | libavcodec/Makefile | 2 | ||||
-rw-r--r-- | libavcodec/ljpegenc.c | 197 | ||||
-rw-r--r-- | libavcodec/mjpegenc.c | 174 | ||||
-rw-r--r-- | libavcodec/mjpegenc.h | 60 | ||||
-rw-r--r-- | libavcodec/mpegvideo.c | 1 | ||||
-rw-r--r-- | libavcodec/mpegvideo.h | 9 |
6 files changed, 261 insertions, 182 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile index a63eec7516..1e473da18f 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -99,7 +99,7 @@ OBJS-$(CONFIG_INTERPLAY_VIDEO_DECODER) += interplayvideo.o OBJS-$(CONFIG_INTERPLAY_DPCM_DECODER) += dpcm.o OBJS-$(CONFIG_JPEGLS_ENCODER) += jpeglsenc.o jpegls.o OBJS-$(CONFIG_KMVC_DECODER) += kmvc.o -OBJS-$(CONFIG_LJPEG_ENCODER) += mjpegenc.o mjpeg.o mpegvideo.o +OBJS-$(CONFIG_LJPEG_ENCODER) += ljpegenc.o mjpegenc.o mjpeg.o mpegvideo.o OBJS-$(CONFIG_LOCO_DECODER) += loco.o OBJS-$(CONFIG_MACE3_DECODER) += mace.o OBJS-$(CONFIG_MACE6_DECODER) += mace.o diff --git a/libavcodec/ljpegenc.c b/libavcodec/ljpegenc.c new file mode 100644 index 0000000000..0c566a1aa0 --- /dev/null +++ b/libavcodec/ljpegenc.c @@ -0,0 +1,197 @@ +/* + * lossless JPEG encoder + * Copyright (c) 2000, 2001 Fabrice Bellard. + * Copyright (c) 2003 Alex Beregszaszi + * Copyright (c) 2003-2004 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Support for external huffman table, various fixes (AVID workaround), + * aspecting, new decode_frame mechanism and apple mjpeg-b support + * by Alex Beregszaszi + */ + +/** + * @file ljpegenc.c + * lossless JPEG encoder. + */ + +#include "avcodec.h" +#include "dsputil.h" +#include "mpegvideo.h" +#include "mjpeg.h" +#include "mjpegenc.h" + + +static int encode_picture_lossless(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){ + MpegEncContext * const s = avctx->priv_data; + MJpegContext * const m = s->mjpeg_ctx; + AVFrame *pict = data; + const int width= s->width; + const int height= s->height; + AVFrame * const p= (AVFrame*)&s->current_picture; + const int predictor= avctx->prediction_method+1; + + init_put_bits(&s->pb, buf, buf_size); + + *p = *pict; + p->pict_type= FF_I_TYPE; + p->key_frame= 1; + + mjpeg_picture_header(s); + + s->header_bits= put_bits_count(&s->pb); + + if(avctx->pix_fmt == PIX_FMT_RGB32){ + int x, y, i; + const int linesize= p->linesize[0]; + uint16_t (*buffer)[4]= (void *) s->rd_scratchpad; + int left[3], top[3], topleft[3]; + + for(i=0; i<3; i++){ + buffer[0][i]= 1 << (9 - 1); + } + + for(y = 0; y < height; y++) { + const int modified_predictor= y ? predictor : 1; + uint8_t *ptr = p->data[0] + (linesize * y); + + if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < width*3*4){ + av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); + return -1; + } + + for(i=0; i<3; i++){ + top[i]= left[i]= topleft[i]= buffer[0][i]; + } + for(x = 0; x < width; x++) { + buffer[x][1] = ptr[4*x+0] - ptr[4*x+1] + 0x100; + buffer[x][2] = ptr[4*x+2] - ptr[4*x+1] + 0x100; + buffer[x][0] = (ptr[4*x+0] + 2*ptr[4*x+1] + ptr[4*x+2])>>2; + + for(i=0;i<3;i++) { + int pred, diff; + + PREDICT(pred, topleft[i], top[i], left[i], modified_predictor); + + topleft[i]= top[i]; + top[i]= buffer[x+1][i]; + + left[i]= buffer[x][i]; + + diff= ((left[i] - pred + 0x100)&0x1FF) - 0x100; + + if(i==0) + mjpeg_encode_dc(s, diff, m->huff_size_dc_luminance, m->huff_code_dc_luminance); //FIXME ugly + else + mjpeg_encode_dc(s, diff, m->huff_size_dc_chrominance, m->huff_code_dc_chrominance); + } + } + } + }else{ + int mb_x, mb_y, i; + const int mb_width = (width + s->mjpeg_hsample[0] - 1) / s->mjpeg_hsample[0]; + const int mb_height = (height + s->mjpeg_vsample[0] - 1) / s->mjpeg_vsample[0]; + + for(mb_y = 0; mb_y < mb_height; mb_y++) { + if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < mb_width * 4 * 3 * s->mjpeg_hsample[0] * s->mjpeg_vsample[0]){ + av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); + return -1; + } + for(mb_x = 0; mb_x < mb_width; mb_x++) { + if(mb_x==0 || mb_y==0){ + for(i=0;i<3;i++) { + uint8_t *ptr; + int x, y, h, v, linesize; + h = s->mjpeg_hsample[i]; + v = s->mjpeg_vsample[i]; + linesize= p->linesize[i]; + + for(y=0; y<v; y++){ + for(x=0; x<h; x++){ + int pred; + + ptr = p->data[i] + (linesize * (v * mb_y + y)) + (h * mb_x + x); //FIXME optimize this crap + if(y==0 && mb_y==0){ + if(x==0 && mb_x==0){ + pred= 128; + }else{ + pred= ptr[-1]; + } + }else{ + if(x==0 && mb_x==0){ + pred= ptr[-linesize]; + }else{ + PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor); + } + } + + if(i==0) + mjpeg_encode_dc(s, (int8_t)(*ptr - pred), m->huff_size_dc_luminance, m->huff_code_dc_luminance); //FIXME ugly + else + mjpeg_encode_dc(s, (int8_t)(*ptr - pred), m->huff_size_dc_chrominance, m->huff_code_dc_chrominance); + } + } + } + }else{ + for(i=0;i<3;i++) { + uint8_t *ptr; + int x, y, h, v, linesize; + h = s->mjpeg_hsample[i]; + v = s->mjpeg_vsample[i]; + linesize= p->linesize[i]; + + for(y=0; y<v; y++){ + for(x=0; x<h; x++){ + int pred; + + ptr = p->data[i] + (linesize * (v * mb_y + y)) + (h * mb_x + x); //FIXME optimize this crap +//printf("%d %d %d %d %8X\n", mb_x, mb_y, x, y, ptr); + PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor); + + if(i==0) + mjpeg_encode_dc(s, (int8_t)(*ptr - pred), m->huff_size_dc_luminance, m->huff_code_dc_luminance); //FIXME ugly + else + mjpeg_encode_dc(s, (int8_t)(*ptr - pred), m->huff_size_dc_chrominance, m->huff_code_dc_chrominance); + } + } + } + } + } + } + } + + emms_c(); + + mjpeg_picture_trailer(s); + s->picture_number++; + + flush_put_bits(&s->pb); + return pbBufPtr(&s->pb) - s->pb.buf; +// return (put_bits_count(&f->pb)+7)/8; +} + + +AVCodec ljpeg_encoder = { //FIXME avoid MPV_* lossless jpeg shouldnt need them + "ljpeg", + CODEC_TYPE_VIDEO, + CODEC_ID_LJPEG, + sizeof(MpegEncContext), + MPV_encode_init, + encode_picture_lossless, + MPV_encode_end, +}; diff --git a/libavcodec/mjpegenc.c b/libavcodec/mjpegenc.c index 53aae5c287..8bf64920a3 100644 --- a/libavcodec/mjpegenc.c +++ b/libavcodec/mjpegenc.c @@ -37,23 +37,12 @@ #include "dsputil.h" #include "mpegvideo.h" #include "mjpeg.h" +#include "mjpegenc.h" /* use two quantizer tables (one for luminance and one for chrominance) */ /* not yet working */ #undef TWOMATRIXES -typedef struct MJpegContext { - uint8_t huff_size_dc_luminance[12]; //FIXME use array [3] instead of lumi / chrom, for easier addressing - uint16_t huff_code_dc_luminance[12]; - uint8_t huff_size_dc_chrominance[12]; - uint16_t huff_code_dc_chrominance[12]; - - uint8_t huff_size_ac_luminance[256]; - uint16_t huff_code_ac_luminance[256]; - uint8_t huff_size_ac_chrominance[256]; - uint16_t huff_code_ac_chrominance[256]; -} MJpegContext; - int mjpeg_init(MpegEncContext *s) { @@ -365,7 +354,7 @@ void mjpeg_picture_trailer(MpegEncContext *s) put_marker(&s->pb, EOI); } -static inline void mjpeg_encode_dc(MpegEncContext *s, int val, +void mjpeg_encode_dc(MpegEncContext *s, int val, uint8_t *huff_size, uint16_t *huff_code) { int mant, nbits; @@ -460,162 +449,3 @@ void mjpeg_encode_mb(MpegEncContext *s, encode_block(s, block[7], 7); } } - -static int encode_picture_lossless(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){ - MpegEncContext * const s = avctx->priv_data; - MJpegContext * const m = s->mjpeg_ctx; - AVFrame *pict = data; - const int width= s->width; - const int height= s->height; - AVFrame * const p= (AVFrame*)&s->current_picture; - const int predictor= avctx->prediction_method+1; - - init_put_bits(&s->pb, buf, buf_size); - - *p = *pict; - p->pict_type= FF_I_TYPE; - p->key_frame= 1; - - mjpeg_picture_header(s); - - s->header_bits= put_bits_count(&s->pb); - - if(avctx->pix_fmt == PIX_FMT_RGB32){ - int x, y, i; - const int linesize= p->linesize[0]; - uint16_t (*buffer)[4]= (void *) s->rd_scratchpad; - int left[3], top[3], topleft[3]; - - for(i=0; i<3; i++){ - buffer[0][i]= 1 << (9 - 1); - } - - for(y = 0; y < height; y++) { - const int modified_predictor= y ? predictor : 1; - uint8_t *ptr = p->data[0] + (linesize * y); - - if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < width*3*4){ - av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); - return -1; - } - - for(i=0; i<3; i++){ - top[i]= left[i]= topleft[i]= buffer[0][i]; - } - for(x = 0; x < width; x++) { - buffer[x][1] = ptr[4*x+0] - ptr[4*x+1] + 0x100; - buffer[x][2] = ptr[4*x+2] - ptr[4*x+1] + 0x100; - buffer[x][0] = (ptr[4*x+0] + 2*ptr[4*x+1] + ptr[4*x+2])>>2; - - for(i=0;i<3;i++) { - int pred, diff; - - PREDICT(pred, topleft[i], top[i], left[i], modified_predictor); - - topleft[i]= top[i]; - top[i]= buffer[x+1][i]; - - left[i]= buffer[x][i]; - - diff= ((left[i] - pred + 0x100)&0x1FF) - 0x100; - - if(i==0) - mjpeg_encode_dc(s, diff, m->huff_size_dc_luminance, m->huff_code_dc_luminance); //FIXME ugly - else - mjpeg_encode_dc(s, diff, m->huff_size_dc_chrominance, m->huff_code_dc_chrominance); - } - } - } - }else{ - int mb_x, mb_y, i; - const int mb_width = (width + s->mjpeg_hsample[0] - 1) / s->mjpeg_hsample[0]; - const int mb_height = (height + s->mjpeg_vsample[0] - 1) / s->mjpeg_vsample[0]; - - for(mb_y = 0; mb_y < mb_height; mb_y++) { - if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < mb_width * 4 * 3 * s->mjpeg_hsample[0] * s->mjpeg_vsample[0]){ - av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); - return -1; - } - for(mb_x = 0; mb_x < mb_width; mb_x++) { - if(mb_x==0 || mb_y==0){ - for(i=0;i<3;i++) { - uint8_t *ptr; - int x, y, h, v, linesize; - h = s->mjpeg_hsample[i]; - v = s->mjpeg_vsample[i]; - linesize= p->linesize[i]; - - for(y=0; y<v; y++){ - for(x=0; x<h; x++){ - int pred; - - ptr = p->data[i] + (linesize * (v * mb_y + y)) + (h * mb_x + x); //FIXME optimize this crap - if(y==0 && mb_y==0){ - if(x==0 && mb_x==0){ - pred= 128; - }else{ - pred= ptr[-1]; - } - }else{ - if(x==0 && mb_x==0){ - pred= ptr[-linesize]; - }else{ - PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor); - } - } - - if(i==0) - mjpeg_encode_dc(s, (int8_t)(*ptr - pred), m->huff_size_dc_luminance, m->huff_code_dc_luminance); //FIXME ugly - else - mjpeg_encode_dc(s, (int8_t)(*ptr - pred), m->huff_size_dc_chrominance, m->huff_code_dc_chrominance); - } - } - } - }else{ - for(i=0;i<3;i++) { - uint8_t *ptr; - int x, y, h, v, linesize; - h = s->mjpeg_hsample[i]; - v = s->mjpeg_vsample[i]; - linesize= p->linesize[i]; - - for(y=0; y<v; y++){ - for(x=0; x<h; x++){ - int pred; - - ptr = p->data[i] + (linesize * (v * mb_y + y)) + (h * mb_x + x); //FIXME optimize this crap -//printf("%d %d %d %d %8X\n", mb_x, mb_y, x, y, ptr); - PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor); - - if(i==0) - mjpeg_encode_dc(s, (int8_t)(*ptr - pred), m->huff_size_dc_luminance, m->huff_code_dc_luminance); //FIXME ugly - else - mjpeg_encode_dc(s, (int8_t)(*ptr - pred), m->huff_size_dc_chrominance, m->huff_code_dc_chrominance); - } - } - } - } - } - } - } - - emms_c(); - - mjpeg_picture_trailer(s); - s->picture_number++; - - flush_put_bits(&s->pb); - return pbBufPtr(&s->pb) - s->pb.buf; -// return (put_bits_count(&f->pb)+7)/8; -} - - -AVCodec ljpeg_encoder = { //FIXME avoid MPV_* lossless jpeg shouldnt need them - "ljpeg", - CODEC_TYPE_VIDEO, - CODEC_ID_LJPEG, - sizeof(MpegEncContext), - MPV_encode_init, - encode_picture_lossless, - MPV_encode_end, -}; diff --git a/libavcodec/mjpegenc.h b/libavcodec/mjpegenc.h new file mode 100644 index 0000000000..12867bb224 --- /dev/null +++ b/libavcodec/mjpegenc.h @@ -0,0 +1,60 @@ +/* + * MJPEG encoder + * Copyright (c) 2000, 2001 Fabrice Bellard. + * Copyright (c) 2003 Alex Beregszaszi + * Copyright (c) 2003-2004 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Support for external huffman table, various fixes (AVID workaround), + * aspecting, new decode_frame mechanism and apple mjpeg-b support + * by Alex Beregszaszi + */ + +/** + * @file mjpegenc.h + * MJPEG encoder. + */ + +#ifndef MJPEGENC_H +#define MJPEGENC_H + +#include "dsputil.h" +#include "mpegvideo.h" + +typedef struct MJpegContext { + uint8_t huff_size_dc_luminance[12]; //FIXME use array [3] instead of lumi / chrom, for easier addressing + uint16_t huff_code_dc_luminance[12]; + uint8_t huff_size_dc_chrominance[12]; + uint16_t huff_code_dc_chrominance[12]; + + uint8_t huff_size_ac_luminance[256]; + uint16_t huff_code_ac_luminance[256]; + uint8_t huff_size_ac_chrominance[256]; + uint16_t huff_code_ac_chrominance[256]; +} MJpegContext; + +int mjpeg_init(MpegEncContext *s); +void mjpeg_close(MpegEncContext *s); +void mjpeg_picture_header(MpegEncContext *s); +void mjpeg_picture_trailer(MpegEncContext *s); +void ff_mjpeg_stuffing(PutBitContext *pbc); +void mjpeg_encode_dc(MpegEncContext *s, int val, + uint8_t *huff_size, uint16_t *huff_code); +void mjpeg_encode_mb(MpegEncContext *s, DCTELEM block[6][64]); + +#endif /* MJPEGENC_H */ diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c index 755a506b11..7c5f2227fd 100644 --- a/libavcodec/mpegvideo.c +++ b/libavcodec/mpegvideo.c @@ -30,6 +30,7 @@ #include "avcodec.h" #include "dsputil.h" #include "mpegvideo.h" +#include "mjpegenc.h" #include "msmpeg4.h" #include "faandct.h" #include <limits.h> diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h index 389694ca0b..5313edc62e 100644 --- a/libavcodec/mpegvideo.h +++ b/libavcodec/mpegvideo.h @@ -905,14 +905,5 @@ void ff_wmv2_encode_mb(MpegEncContext * s, DCTELEM block[6][64], int motion_x, int motion_y); -/* mjpeg.c */ -int mjpeg_init(MpegEncContext *s); -void mjpeg_close(MpegEncContext *s); -void mjpeg_encode_mb(MpegEncContext *s, - DCTELEM block[6][64]); -void mjpeg_picture_header(MpegEncContext *s); -void mjpeg_picture_trailer(MpegEncContext *s); -void ff_mjpeg_stuffing(PutBitContext * pbc); - #endif /* AVCODEC_MPEGVIDEO_H */ |