mirror of
https://github.com/librempeg/librempeg
synced 2024-11-23 03:28:27 +00:00
prores: change license to LGPL, merge some parts.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Elvis Presley
Michael Niedermayer
parent
b87d882578
commit
bebaf4ea1f
@ -313,7 +313,7 @@ OBJS-$(CONFIG_PNG_DECODER) += png.o pngdec.o
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OBJS-$(CONFIG_PNG_ENCODER) += png.o pngenc.o
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OBJS-$(CONFIG_PPM_DECODER) += pnmdec.o pnm.o
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OBJS-$(CONFIG_PPM_ENCODER) += pnmenc.o pnm.o
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OBJS-$(CONFIG_PRORES_GPL_DECODER) += proresdec_gpl.o
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OBJS-$(CONFIG_PRORES_DECODER) += proresdec.o
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OBJS-$(CONFIG_PRORES_LGPL_DECODER) += proresdec_lgpl.o proresdsp.o
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OBJS-$(CONFIG_PTX_DECODER) += ptx.o
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OBJS-$(CONFIG_QCELP_DECODER) += qcelpdec.o celp_math.o \
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@ -172,7 +172,7 @@ void avcodec_register_all(void)
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REGISTER_DECODER (PICTOR, pictor);
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REGISTER_ENCDEC (PNG, png);
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REGISTER_ENCDEC (PPM, ppm);
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REGISTER_DECODER (PRORES_GPL, prores_gpl);
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REGISTER_DECODER (PRORES, prores);
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REGISTER_DECODER (PRORES_LGPL, prores_lgpl);
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REGISTER_DECODER (PTX, ptx);
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REGISTER_DECODER (QDRAW, qdraw);
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@ -5,16 +5,16 @@
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* version 2 of the License.
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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@ -30,33 +30,8 @@
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#include "avcodec.h"
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#include "get_bits.h"
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#include "dsputil.h"
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#include "simple_idct.h"
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typedef struct {
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const uint8_t *data;
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unsigned mb_x;
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unsigned mb_y;
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unsigned mb_count;
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unsigned data_size;
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} SliceContext;
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typedef struct {
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AVFrame frame;
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DSPContext dsp;
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int frame_type; ///< 0 = progressive, 1 = tff, 2 = bff
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uint8_t qmat_luma[64];
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uint8_t qmat_chroma[64];
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SliceContext *slices;
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int slice_count; ///< number of slices in the current picture
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unsigned mb_width; ///< width of the current picture in mb
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unsigned mb_height; ///< height of the current picture in mb
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uint8_t progressive_scan[64];
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uint8_t interlaced_scan[64];
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const uint8_t *scan;
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int first_field;
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void (*idct_put)(DCTELEM *, uint8_t *restrict, int);
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} ProresContext;
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#include "proresdec.h"
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static void permute(uint8_t *dst, const uint8_t *src, const uint8_t permutation[64])
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{
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@ -65,27 +40,6 @@ static void permute(uint8_t *dst, const uint8_t *src, const uint8_t permutation[
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dst[i] = permutation[src[i]];
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}
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static av_always_inline void put_pixels(const DCTELEM *block, uint8_t *restrict pixels, int stride)
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{
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int16_t *p = (int16_t*)pixels;
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int i, j;
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stride >>= 1;
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for(i = 0; i < 8; i++) {
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for (j = 0; j < 8; j++) {
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p[j] = av_clip(block[j], 4, 1019);
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}
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p += stride;
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block += 8;
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}
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}
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static void idct_put(DCTELEM *block, uint8_t *restrict pixels, int stride)
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{
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ff_simple_idct_10(block);
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put_pixels(block, pixels, stride);
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}
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static const uint8_t progressive_scan[64] = {
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0, 1, 8, 9, 2, 3, 10, 11,
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16, 17, 24, 25, 18, 19, 26, 27,
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@ -111,18 +65,22 @@ static const uint8_t interlaced_scan[64] = {
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static av_cold int decode_init(AVCodecContext *avctx)
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{
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ProresContext *ctx = avctx->priv_data;
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uint8_t idct_permutation[64];
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avctx->bits_per_raw_sample = 10;
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dsputil_init(&ctx->dsp, avctx);
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ff_proresdsp_init(&ctx->prodsp);
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avctx->coded_frame = &ctx->frame;
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ctx->frame.type = FF_I_TYPE;
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ctx->frame.key_frame = 1;
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ctx->idct_put = idct_put;
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memcpy(ctx->progressive_scan, progressive_scan, sizeof(progressive_scan));
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memcpy(ctx->interlaced_scan, interlaced_scan, sizeof(interlaced_scan));
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ff_init_scantable_permutation(idct_permutation,
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ctx->prodsp.idct_permutation_type);
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permute(ctx->progressive_scan, progressive_scan, idct_permutation);
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permute(ctx->interlaced_scan, interlaced_scan, idct_permutation);
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return 0;
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}
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@ -133,7 +91,6 @@ static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
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int hdr_size, width, height, flags;
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int version;
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const uint8_t *ptr;
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const uint8_t *scan;
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hdr_size = AV_RB16(buf);
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av_dlog(avctx, "header size %d\n", hdr_size);
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@ -162,10 +119,8 @@ static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
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av_dlog(avctx, "frame type %d\n", ctx->frame_type);
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if (ctx->frame_type == 0) {
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scan = progressive_scan;
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ctx->scan = ctx->progressive_scan; // permuted
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} else {
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scan = interlaced_scan;
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ctx->scan = ctx->interlaced_scan; // permuted
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ctx->frame.interlaced_frame = 1;
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ctx->frame.top_field_first = ctx->frame_type == 1;
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@ -178,14 +133,14 @@ static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
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av_dlog(avctx, "flags %x\n", flags);
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if (flags & 2) {
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permute(ctx->qmat_luma, scan, ptr);
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permute(ctx->qmat_luma, ctx->prodsp.idct_permutation, ptr);
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ptr += 64;
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} else {
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memset(ctx->qmat_luma, 4, 64);
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}
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if (flags & 1) {
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permute(ctx->qmat_chroma, scan, ptr);
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permute(ctx->qmat_chroma, ctx->prodsp.idct_permutation, ptr);
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} else {
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memset(ctx->qmat_chroma, 4, 64);
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}
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@ -331,7 +286,7 @@ static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, cons
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static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
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static av_always_inline void decode_dc_coeffs(GetBitContext *gb, DCTELEM *out,
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int blocks_per_slice, const int *qmat)
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int blocks_per_slice)
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{
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DCTELEM prev_dc;
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int code, i, sign;
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@ -340,7 +295,7 @@ static av_always_inline void decode_dc_coeffs(GetBitContext *gb, DCTELEM *out,
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DECODE_CODEWORD(code, FIRST_DC_CB);
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prev_dc = TOSIGNED(code);
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out[0] = 4096 + ((prev_dc * qmat[0]) >> 2);
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out[0] = prev_dc;
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out += 64; // dc coeff for the next block
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@ -351,7 +306,7 @@ static av_always_inline void decode_dc_coeffs(GetBitContext *gb, DCTELEM *out,
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if(code) sign ^= -(code & 1);
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else sign = 0;
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prev_dc += (((code + 1) >> 1) ^ sign) - sign;
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out[0] = 4096 + ((prev_dc * qmat[0]) >> 2);
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out[0] = prev_dc;
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}
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CLOSE_READER(re, gb);
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}
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@ -361,8 +316,7 @@ static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29, 0x29,
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static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28, 0x28, 0x28, 0x28, 0x4C };
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static av_always_inline void decode_ac_coeffs(AVCodecContext *avctx, GetBitContext *gb,
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DCTELEM *out, int blocks_per_slice,
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const int *qmat)
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DCTELEM *out, int blocks_per_slice)
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{
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ProresContext *ctx = avctx->priv_data;
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int block_mask, sign;
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@ -397,7 +351,7 @@ static av_always_inline void decode_ac_coeffs(AVCodecContext *avctx, GetBitConte
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sign = SHOW_SBITS(re, gb, 1);
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SKIP_BITS(re, gb, 1);
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out[((pos & block_mask) << 6) + ctx->scan[i]] = (((level ^ sign) - sign) * qmat[i]) >> 2;
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out[((pos & block_mask) << 6) + ctx->scan[i]] = ((level ^ sign) - sign);
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}
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CLOSE_READER(re, gb);
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@ -406,7 +360,7 @@ static av_always_inline void decode_ac_coeffs(AVCodecContext *avctx, GetBitConte
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static void decode_slice_luma(AVCodecContext *avctx, SliceContext *slice,
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uint8_t *dst, int dst_stride,
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const uint8_t *buf, unsigned buf_size,
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const int *qmat)
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const int16_t *qmat)
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{
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ProresContext *ctx = avctx->priv_data;
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LOCAL_ALIGNED_16(DCTELEM, blocks, [8*4*64]);
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@ -419,26 +373,24 @@ static void decode_slice_luma(AVCodecContext *avctx, SliceContext *slice,
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init_get_bits(&gb, buf, buf_size << 3);
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decode_dc_coeffs(&gb, blocks, blocks_per_slice, qmat);
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decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice, qmat);
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decode_dc_coeffs(&gb, blocks, blocks_per_slice);
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decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice);
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block = blocks;
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for (i = 0; i < slice->mb_count; i++) {
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ctx->idct_put(block+(0<<6), dst, dst_stride);
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ctx->idct_put(block+(1<<6), dst+16, dst_stride);
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ctx->idct_put(block+(2<<6), dst+8*dst_stride, dst_stride);
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ctx->idct_put(block+(3<<6), dst+8*dst_stride+16, dst_stride);
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ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
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ctx->prodsp.idct_put(dst+16, dst_stride, block+(1<<6), qmat);
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ctx->prodsp.idct_put(dst+8*dst_stride, dst_stride, block+(2<<6), qmat);
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ctx->prodsp.idct_put(dst+8*dst_stride+16, dst_stride, block+(3<<6), qmat);
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block += 4*64;
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dst += 32;
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}
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}
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static void decode_slice_chroma(AVCodecContext *avctx, SliceContext *slice,
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uint8_t *dst, int dst_stride,
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const uint8_t *buf, unsigned buf_size,
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const int *qmat, int log2_blocks_per_mb)
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const int16_t *qmat, int log2_blocks_per_mb)
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{
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ProresContext *ctx = avctx->priv_data;
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LOCAL_ALIGNED_16(DCTELEM, blocks, [8*4*64]);
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@ -451,14 +403,14 @@ static void decode_slice_chroma(AVCodecContext *avctx, SliceContext *slice,
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init_get_bits(&gb, buf, buf_size << 3);
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decode_dc_coeffs(&gb, blocks, blocks_per_slice, qmat);
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decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice, qmat);
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decode_dc_coeffs(&gb, blocks, blocks_per_slice);
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decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice);
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block = blocks;
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for (i = 0; i < slice->mb_count; i++) {
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for (j = 0; j < log2_blocks_per_mb; j++) {
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ctx->idct_put(block+(0<<6), dst, dst_stride);
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ctx->idct_put(block+(1<<6), dst+8*dst_stride, dst_stride);
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ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
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ctx->prodsp.idct_put(dst+8*dst_stride, dst_stride, block+(1<<6), qmat);
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block += 2*64;
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dst += 16;
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}
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@ -475,8 +427,8 @@ static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int
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int luma_stride, chroma_stride;
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int y_data_size, u_data_size, v_data_size;
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uint8_t *dest_y, *dest_u, *dest_v;
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int qmat_luma_scaled[64];
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int qmat_chroma_scaled[64];
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int16_t qmat_luma_scaled[64];
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int16_t qmat_chroma_scaled[64];
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int mb_x_shift;
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//av_log(avctx, AV_LOG_INFO, "slice %d mb width %d mb x %d y %d\n",
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@ -499,7 +451,7 @@ static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int
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buf += hdr_size;
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for (i = 0; i < 64; i++) {
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qmat_luma_scaled[i] = ctx->qmat_luma[i] * qscale;
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qmat_luma_scaled [i] = ctx->qmat_luma [i] * qscale;
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qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * qscale;
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}
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@ -628,8 +580,8 @@ static av_cold int decode_close(AVCodecContext *avctx)
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return 0;
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}
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AVCodec ff_prores_gpl_decoder = {
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.name = "prores_gpl",
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AVCodec ff_prores_decoder = {
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.name = "prores",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = CODEC_ID_PRORES,
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.priv_data_size = sizeof(ProresContext),
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53
libavcodec/proresdec.h
Normal file
53
libavcodec/proresdec.h
Normal file
@ -0,0 +1,53 @@
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/*
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* Copyright (c) 2010-2011 Maxim Poliakovski
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* Copyright (c) 2010-2011 Elvis Presley
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* version 2 of the License.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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* General Public License for more details.
|
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*
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* You should have received a copy of the GNU General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_PRORESDEC_H
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#define AVCODEC_PRORESDEC_H
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#include "dsputil.h"
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#include "proresdsp.h"
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typedef struct {
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const uint8_t *data;
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unsigned mb_x;
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unsigned mb_y;
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unsigned mb_count;
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unsigned data_size;
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} SliceContext;
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typedef struct {
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DSPContext dsp;
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ProresDSPContext prodsp;
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AVFrame frame;
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int frame_type; ///< 0 = progressive, 1 = tff, 2 = bff
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uint8_t qmat_luma[64];
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uint8_t qmat_chroma[64];
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SliceContext *slices;
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int slice_count; ///< number of slices in the current picture
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unsigned mb_width; ///< width of the current picture in mb
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unsigned mb_height; ///< height of the current picture in mb
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uint8_t progressive_scan[64];
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uint8_t interlaced_scan[64];
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const uint8_t *scan;
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int first_field;
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} ProresContext;
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#endif /* AVCODEC_PRORESDEC_H */
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@ -36,6 +36,8 @@ MMX-OBJS-$(CONFIG_GPL) += x86/idct_mmx.o
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MMX-OBJS-$(CONFIG_LPC) += x86/lpc_mmx.o
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YASM-OBJS-$(CONFIG_PRORES_LGPL_DECODER) += x86/proresdsp.o
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MMX-OBJS-$(CONFIG_PRORES_LGPL_DECODER) += x86/proresdsp-init.o
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YASM-OBJS-$(CONFIG_PRORES_DECODER) += x86/proresdsp.o
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MMX-OBJS-$(CONFIG_PRORES_DECODER) += x86/proresdsp-init.o
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MMX-OBJS-$(CONFIG_DWT) += x86/snowdsp_mmx.o
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MMX-OBJS-$(CONFIG_VC1_DECODER) += x86/vc1dsp_mmx.o
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YASM-OBJS-$(CONFIG_VP3_DECODER) += x86/vp3dsp.o
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