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Diffstat (limited to 'ffmpeg/libavcodec/huffyuvenc.c')
-rw-r--r--ffmpeg/libavcodec/huffyuvenc.c722
1 files changed, 0 insertions, 722 deletions
diff --git a/ffmpeg/libavcodec/huffyuvenc.c b/ffmpeg/libavcodec/huffyuvenc.c
deleted file mode 100644
index 3a55d54..0000000
--- a/ffmpeg/libavcodec/huffyuvenc.c
+++ /dev/null
@@ -1,722 +0,0 @@
-/*
- * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
- * the algorithm used
- *
- * 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
- */
-
-/**
- * @file
- * huffyuv encoder
- */
-
-#include "avcodec.h"
-#include "huffyuv.h"
-#include "huffman.h"
-#include "internal.h"
-#include "put_bits.h"
-
-static inline int sub_left_prediction(HYuvContext *s, uint8_t *dst,
- const uint8_t *src, int w, int left)
-{
- int i;
- if (w < 32) {
- for (i = 0; i < w; i++) {
- const int temp = src[i];
- dst[i] = temp - left;
- left = temp;
- }
- return left;
- } else {
- for (i = 0; i < 16; i++) {
- const int temp = src[i];
- dst[i] = temp - left;
- left = temp;
- }
- s->dsp.diff_bytes(dst + 16, src + 16, src + 15, w - 16);
- return src[w-1];
- }
-}
-
-static inline void sub_left_prediction_bgr32(HYuvContext *s, uint8_t *dst,
- const uint8_t *src, int w,
- int *red, int *green, int *blue,
- int *alpha)
-{
- int i;
- int r, g, b, a;
- r = *red;
- g = *green;
- b = *blue;
- a = *alpha;
-
- for (i = 0; i < FFMIN(w, 4); i++) {
- const int rt = src[i * 4 + R];
- const int gt = src[i * 4 + G];
- const int bt = src[i * 4 + B];
- const int at = src[i * 4 + A];
- dst[i * 4 + R] = rt - r;
- dst[i * 4 + G] = gt - g;
- dst[i * 4 + B] = bt - b;
- dst[i * 4 + A] = at - a;
- r = rt;
- g = gt;
- b = bt;
- a = at;
- }
-
- s->dsp.diff_bytes(dst + 16, src + 16, src + 12, w * 4 - 16);
-
- *red = src[(w - 1) * 4 + R];
- *green = src[(w - 1) * 4 + G];
- *blue = src[(w - 1) * 4 + B];
- *alpha = src[(w - 1) * 4 + A];
-}
-
-static inline void sub_left_prediction_rgb24(HYuvContext *s, uint8_t *dst,
- uint8_t *src, int w,
- int *red, int *green, int *blue)
-{
- int i;
- int r, g, b;
- r = *red;
- g = *green;
- b = *blue;
- for (i = 0; i < FFMIN(w, 16); i++) {
- const int rt = src[i * 3 + 0];
- const int gt = src[i * 3 + 1];
- const int bt = src[i * 3 + 2];
- dst[i * 3 + 0] = rt - r;
- dst[i * 3 + 1] = gt - g;
- dst[i * 3 + 2] = bt - b;
- r = rt;
- g = gt;
- b = bt;
- }
-
- s->dsp.diff_bytes(dst + 48, src + 48, src + 48 - 3, w * 3 - 48);
-
- *red = src[(w - 1) * 3 + 0];
- *green = src[(w - 1) * 3 + 1];
- *blue = src[(w - 1) * 3 + 2];
-}
-
-static int store_table(HYuvContext *s, const uint8_t *len, uint8_t *buf)
-{
- int i;
- int index = 0;
-
- for (i = 0; i < 256;) {
- int val = len[i];
- int repeat = 0;
-
- for (; i < 256 && len[i] == val && repeat < 255; i++)
- repeat++;
-
- av_assert0(val < 32 && val >0 && repeat<256 && repeat>0);
- if (repeat > 7) {
- buf[index++] = val;
- buf[index++] = repeat;
- } else {
- buf[index++] = val | (repeat << 5);
- }
- }
-
- return index;
-}
-
-static av_cold int encode_init(AVCodecContext *avctx)
-{
- HYuvContext *s = avctx->priv_data;
- int i, j;
-
- ff_huffyuv_common_init(avctx);
-
- avctx->extradata = av_mallocz(1024*30); // 256*3+4 == 772
- avctx->stats_out = av_mallocz(1024*30); // 21*256*3(%llu ) + 3(\n) + 1(0) = 16132
- if (!avctx->extradata || !avctx->stats_out) {
- av_freep(&avctx->stats_out);
- return AVERROR(ENOMEM);
- }
- s->version = 2;
-
- avctx->coded_frame = av_frame_alloc();
- if (!avctx->coded_frame)
- return AVERROR(ENOMEM);
-
- avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
- avctx->coded_frame->key_frame = 1;
-
- switch (avctx->pix_fmt) {
- case AV_PIX_FMT_YUV420P:
- case AV_PIX_FMT_YUV422P:
- if (s->width & 1) {
- av_log(avctx, AV_LOG_ERROR, "Width must be even for this colorspace.\n");
- return AVERROR(EINVAL);
- }
- s->bitstream_bpp = avctx->pix_fmt == AV_PIX_FMT_YUV420P ? 12 : 16;
- break;
- case AV_PIX_FMT_RGB32:
- s->bitstream_bpp = 32;
- break;
- case AV_PIX_FMT_RGB24:
- s->bitstream_bpp = 24;
- break;
- default:
- av_log(avctx, AV_LOG_ERROR, "format not supported\n");
- return AVERROR(EINVAL);
- }
- avctx->bits_per_coded_sample = s->bitstream_bpp;
- s->decorrelate = s->bitstream_bpp >= 24;
- s->predictor = avctx->prediction_method;
- s->interlaced = avctx->flags&CODEC_FLAG_INTERLACED_ME ? 1 : 0;
- if (avctx->context_model == 1) {
- s->context = avctx->context_model;
- if (s->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)) {
- av_log(avctx, AV_LOG_ERROR,
- "context=1 is not compatible with "
- "2 pass huffyuv encoding\n");
- return AVERROR(EINVAL);
- }
- }else s->context= 0;
-
- if (avctx->codec->id == AV_CODEC_ID_HUFFYUV) {
- if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
- av_log(avctx, AV_LOG_ERROR,
- "Error: YV12 is not supported by huffyuv; use "
- "vcodec=ffvhuff or format=422p\n");
- return AVERROR(EINVAL);
- }
- if (avctx->context_model) {
- av_log(avctx, AV_LOG_ERROR,
- "Error: per-frame huffman tables are not supported "
- "by huffyuv; use vcodec=ffvhuff\n");
- return AVERROR(EINVAL);
- }
- if (s->interlaced != ( s->height > 288 ))
- av_log(avctx, AV_LOG_INFO,
- "using huffyuv 2.2.0 or newer interlacing flag\n");
- }
-
- if (s->bitstream_bpp >= 24 && s->predictor == MEDIAN) {
- av_log(avctx, AV_LOG_ERROR,
- "Error: RGB is incompatible with median predictor\n");
- return AVERROR(EINVAL);
- }
-
- ((uint8_t*)avctx->extradata)[0] = s->predictor | (s->decorrelate << 6);
- ((uint8_t*)avctx->extradata)[1] = s->bitstream_bpp;
- ((uint8_t*)avctx->extradata)[2] = s->interlaced ? 0x10 : 0x20;
- if (s->context)
- ((uint8_t*)avctx->extradata)[2] |= 0x40;
- ((uint8_t*)avctx->extradata)[3] = 0;
- s->avctx->extradata_size = 4;
-
- if (avctx->stats_in) {
- char *p = avctx->stats_in;
-
- for (i = 0; i < 3; i++)
- for (j = 0; j < 256; j++)
- s->stats[i][j] = 1;
-
- for (;;) {
- for (i = 0; i < 3; i++) {
- char *next;
-
- for (j = 0; j < 256; j++) {
- s->stats[i][j] += strtol(p, &next, 0);
- if (next == p) return -1;
- p = next;
- }
- }
- if (p[0] == 0 || p[1] == 0 || p[2] == 0) break;
- }
- } else {
- for (i = 0; i < 3; i++)
- for (j = 0; j < 256; j++) {
- int d = FFMIN(j, 256 - j);
-
- s->stats[i][j] = 100000000 / (d + 1);
- }
- }
-
- for (i = 0; i < 3; i++) {
- ff_huff_gen_len_table(s->len[i], s->stats[i]);
-
- if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i]) < 0) {
- return -1;
- }
-
- s->avctx->extradata_size +=
- store_table(s, s->len[i], &((uint8_t*)s->avctx->extradata)[s->avctx->extradata_size]);
- }
-
- if (s->context) {
- for (i = 0; i < 3; i++) {
- int pels = s->width * s->height / (i ? 40 : 10);
- for (j = 0; j < 256; j++) {
- int d = FFMIN(j, 256 - j);
- s->stats[i][j] = pels/(d + 1);
- }
- }
- } else {
- for (i = 0; i < 3; i++)
- for (j = 0; j < 256; j++)
- s->stats[i][j]= 0;
- }
-
- if (ff_huffyuv_alloc_temp(s)) {
- ff_huffyuv_common_end(s);
- return AVERROR(ENOMEM);
- }
-
- s->picture_number=0;
-
- return 0;
-}
-static int encode_422_bitstream(HYuvContext *s, int offset, int count)
-{
- int i;
- const uint8_t *y = s->temp[0] + offset;
- const uint8_t *u = s->temp[1] + offset / 2;
- const uint8_t *v = s->temp[2] + offset / 2;
-
- if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 2 * 4 * count) {
- av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
- return -1;
- }
-
-#define LOAD4\
- int y0 = y[2 * i];\
- int y1 = y[2 * i + 1];\
- int u0 = u[i];\
- int v0 = v[i];
-
- count /= 2;
-
- if (s->flags & CODEC_FLAG_PASS1) {
- for(i = 0; i < count; i++) {
- LOAD4;
- s->stats[0][y0]++;
- s->stats[1][u0]++;
- s->stats[0][y1]++;
- s->stats[2][v0]++;
- }
- }
- if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)
- return 0;
- if (s->context) {
- for (i = 0; i < count; i++) {
- LOAD4;
- s->stats[0][y0]++;
- put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);
- s->stats[1][u0]++;
- put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]);
- s->stats[0][y1]++;
- put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
- s->stats[2][v0]++;
- put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]);
- }
- } else {
- for(i = 0; i < count; i++) {
- LOAD4;
- put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);
- put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]);
- put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
- put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]);
- }
- }
- return 0;
-}
-
-static int encode_gray_bitstream(HYuvContext *s, int count)
-{
- int i;
-
- if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 4 * count) {
- av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
- return -1;
- }
-
-#define LOAD2\
- int y0 = s->temp[0][2 * i];\
- int y1 = s->temp[0][2 * i + 1];
-#define STAT2\
- s->stats[0][y0]++;\
- s->stats[0][y1]++;
-#define WRITE2\
- put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);\
- put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
-
- count /= 2;
-
- if (s->flags & CODEC_FLAG_PASS1) {
- for (i = 0; i < count; i++) {
- LOAD2;
- STAT2;
- }
- }
- if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)
- return 0;
-
- if (s->context) {
- for (i = 0; i < count; i++) {
- LOAD2;
- STAT2;
- WRITE2;
- }
- } else {
- for (i = 0; i < count; i++) {
- LOAD2;
- WRITE2;
- }
- }
- return 0;
-}
-
-static inline int encode_bgra_bitstream(HYuvContext *s, int count, int planes)
-{
- int i;
-
- if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) <
- 4 * planes * count) {
- av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
- return -1;
- }
-
-#define LOAD_GBRA \
- int g = s->temp[0][planes == 3 ? 3 * i + 1 : 4 * i + G]; \
- int b =(s->temp[0][planes == 3 ? 3 * i + 2 : 4 * i + B] - g) & 0xFF;\
- int r =(s->temp[0][planes == 3 ? 3 * i + 0 : 4 * i + R] - g) & 0xFF;\
- int a = s->temp[0][planes * i + A];
-
-#define STAT_BGRA \
- s->stats[0][b]++; \
- s->stats[1][g]++; \
- s->stats[2][r]++; \
- if (planes == 4) \
- s->stats[2][a]++;
-
-#define WRITE_GBRA \
- put_bits(&s->pb, s->len[1][g], s->bits[1][g]); \
- put_bits(&s->pb, s->len[0][b], s->bits[0][b]); \
- put_bits(&s->pb, s->len[2][r], s->bits[2][r]); \
- if (planes == 4) \
- put_bits(&s->pb, s->len[2][a], s->bits[2][a]);
-
- if ((s->flags & CODEC_FLAG_PASS1) &&
- (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) {
- for (i = 0; i < count; i++) {
- LOAD_GBRA;
- STAT_BGRA;
- }
- } else if (s->context || (s->flags & CODEC_FLAG_PASS1)) {
- for (i = 0; i < count; i++) {
- LOAD_GBRA;
- STAT_BGRA;
- WRITE_GBRA;
- }
- } else {
- for (i = 0; i < count; i++) {
- LOAD_GBRA;
- WRITE_GBRA;
- }
- }
- return 0;
-}
-
-static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
- const AVFrame *pict, int *got_packet)
-{
- HYuvContext *s = avctx->priv_data;
- const int width = s->width;
- const int width2 = s->width>>1;
- const int height = s->height;
- const int fake_ystride = s->interlaced ? pict->linesize[0]*2 : pict->linesize[0];
- const int fake_ustride = s->interlaced ? pict->linesize[1]*2 : pict->linesize[1];
- const int fake_vstride = s->interlaced ? pict->linesize[2]*2 : pict->linesize[2];
- const AVFrame * const p = pict;
- int i, j, size = 0, ret;
-
- if ((ret = ff_alloc_packet2(avctx, pkt, width * height * 3 * 4 + FF_MIN_BUFFER_SIZE)) < 0)
- return ret;
-
- if (s->context) {
- for (i = 0; i < 3; i++) {
- ff_huff_gen_len_table(s->len[i], s->stats[i]);
- if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i]) < 0)
- return -1;
- size += store_table(s, s->len[i], &pkt->data[size]);
- }
-
- for (i = 0; i < 3; i++)
- for (j = 0; j < 256; j++)
- s->stats[i][j] >>= 1;
- }
-
- init_put_bits(&s->pb, pkt->data + size, pkt->size - size);
-
- if (avctx->pix_fmt == AV_PIX_FMT_YUV422P ||
- avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
- int lefty, leftu, leftv, y, cy;
-
- put_bits(&s->pb, 8, leftv = p->data[2][0]);
- put_bits(&s->pb, 8, lefty = p->data[0][1]);
- put_bits(&s->pb, 8, leftu = p->data[1][0]);
- put_bits(&s->pb, 8, p->data[0][0]);
-
- lefty = sub_left_prediction(s, s->temp[0], p->data[0], width , 0);
- leftu = sub_left_prediction(s, s->temp[1], p->data[1], width2, 0);
- leftv = sub_left_prediction(s, s->temp[2], p->data[2], width2, 0);
-
- encode_422_bitstream(s, 2, width-2);
-
- if (s->predictor==MEDIAN) {
- int lefttopy, lefttopu, lefttopv;
- cy = y = 1;
- if (s->interlaced) {
- lefty = sub_left_prediction(s, s->temp[0], p->data[0] + p->linesize[0], width , lefty);
- leftu = sub_left_prediction(s, s->temp[1], p->data[1] + p->linesize[1], width2, leftu);
- leftv = sub_left_prediction(s, s->temp[2], p->data[2] + p->linesize[2], width2, leftv);
-
- encode_422_bitstream(s, 0, width);
- y++; cy++;
- }
-
- lefty = sub_left_prediction(s, s->temp[0], p->data[0] + fake_ystride, 4, lefty);
- leftu = sub_left_prediction(s, s->temp[1], p->data[1] + fake_ustride, 2, leftu);
- leftv = sub_left_prediction(s, s->temp[2], p->data[2] + fake_vstride, 2, leftv);
-
- encode_422_bitstream(s, 0, 4);
-
- lefttopy = p->data[0][3];
- lefttopu = p->data[1][1];
- lefttopv = p->data[2][1];
- s->dsp.sub_hfyu_median_prediction(s->temp[0], p->data[0]+4, p->data[0] + fake_ystride + 4, width - 4 , &lefty, &lefttopy);
- s->dsp.sub_hfyu_median_prediction(s->temp[1], p->data[1]+2, p->data[1] + fake_ustride + 2, width2 - 2, &leftu, &lefttopu);
- s->dsp.sub_hfyu_median_prediction(s->temp[2], p->data[2]+2, p->data[2] + fake_vstride + 2, width2 - 2, &leftv, &lefttopv);
- encode_422_bitstream(s, 0, width - 4);
- y++; cy++;
-
- for (; y < height; y++,cy++) {
- uint8_t *ydst, *udst, *vdst;
-
- if (s->bitstream_bpp == 12) {
- while (2 * cy > y) {
- ydst = p->data[0] + p->linesize[0] * y;
- s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy);
- encode_gray_bitstream(s, width);
- y++;
- }
- if (y >= height) break;
- }
- ydst = p->data[0] + p->linesize[0] * y;
- udst = p->data[1] + p->linesize[1] * cy;
- vdst = p->data[2] + p->linesize[2] * cy;
-
- s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy);
- s->dsp.sub_hfyu_median_prediction(s->temp[1], udst - fake_ustride, udst, width2, &leftu, &lefttopu);
- s->dsp.sub_hfyu_median_prediction(s->temp[2], vdst - fake_vstride, vdst, width2, &leftv, &lefttopv);
-
- encode_422_bitstream(s, 0, width);
- }
- } else {
- for (cy = y = 1; y < height; y++, cy++) {
- uint8_t *ydst, *udst, *vdst;
-
- /* encode a luma only line & y++ */
- if (s->bitstream_bpp == 12) {
- ydst = p->data[0] + p->linesize[0] * y;
-
- if (s->predictor == PLANE && s->interlaced < y) {
- s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
-
- lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
- } else {
- lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty);
- }
- encode_gray_bitstream(s, width);
- y++;
- if (y >= height) break;
- }
-
- ydst = p->data[0] + p->linesize[0] * y;
- udst = p->data[1] + p->linesize[1] * cy;
- vdst = p->data[2] + p->linesize[2] * cy;
-
- if (s->predictor == PLANE && s->interlaced < cy) {
- s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width);
- s->dsp.diff_bytes(s->temp[2], udst, udst - fake_ustride, width2);
- s->dsp.diff_bytes(s->temp[2] + width2, vdst, vdst - fake_vstride, width2);
-
- lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty);
- leftu = sub_left_prediction(s, s->temp[1], s->temp[2], width2, leftu);
- leftv = sub_left_prediction(s, s->temp[2], s->temp[2] + width2, width2, leftv);
- } else {
- lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty);
- leftu = sub_left_prediction(s, s->temp[1], udst, width2, leftu);
- leftv = sub_left_prediction(s, s->temp[2], vdst, width2, leftv);
- }
-
- encode_422_bitstream(s, 0, width);
- }
- }
- } else if(avctx->pix_fmt == AV_PIX_FMT_RGB32) {
- uint8_t *data = p->data[0] + (height - 1) * p->linesize[0];
- const int stride = -p->linesize[0];
- const int fake_stride = -fake_ystride;
- int y;
- int leftr, leftg, leftb, lefta;
-
- put_bits(&s->pb, 8, lefta = data[A]);
- put_bits(&s->pb, 8, leftr = data[R]);
- put_bits(&s->pb, 8, leftg = data[G]);
- put_bits(&s->pb, 8, leftb = data[B]);
-
- sub_left_prediction_bgr32(s, s->temp[0], data + 4, width - 1,
- &leftr, &leftg, &leftb, &lefta);
- encode_bgra_bitstream(s, width - 1, 4);
-
- for (y = 1; y < s->height; y++) {
- uint8_t *dst = data + y*stride;
- if (s->predictor == PLANE && s->interlaced < y) {
- s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width * 4);
- sub_left_prediction_bgr32(s, s->temp[0], s->temp[1], width,
- &leftr, &leftg, &leftb, &lefta);
- } else {
- sub_left_prediction_bgr32(s, s->temp[0], dst, width,
- &leftr, &leftg, &leftb, &lefta);
- }
- encode_bgra_bitstream(s, width, 4);
- }
- } else if (avctx->pix_fmt == AV_PIX_FMT_RGB24) {
- uint8_t *data = p->data[0] + (height - 1) * p->linesize[0];
- const int stride = -p->linesize[0];
- const int fake_stride = -fake_ystride;
- int y;
- int leftr, leftg, leftb;
-
- put_bits(&s->pb, 8, leftr = data[0]);
- put_bits(&s->pb, 8, leftg = data[1]);
- put_bits(&s->pb, 8, leftb = data[2]);
- put_bits(&s->pb, 8, 0);
-
- sub_left_prediction_rgb24(s, s->temp[0], data + 3, width - 1,
- &leftr, &leftg, &leftb);
- encode_bgra_bitstream(s, width-1, 3);
-
- for (y = 1; y < s->height; y++) {
- uint8_t *dst = data + y * stride;
- if (s->predictor == PLANE && s->interlaced < y) {
- s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride,
- width * 3);
- sub_left_prediction_rgb24(s, s->temp[0], s->temp[1], width,
- &leftr, &leftg, &leftb);
- } else {
- sub_left_prediction_rgb24(s, s->temp[0], dst, width,
- &leftr, &leftg, &leftb);
- }
- encode_bgra_bitstream(s, width, 3);
- }
- } else {
- av_log(avctx, AV_LOG_ERROR, "Format not supported!\n");
- }
- emms_c();
-
- size += (put_bits_count(&s->pb) + 31) / 8;
- put_bits(&s->pb, 16, 0);
- put_bits(&s->pb, 15, 0);
- size /= 4;
-
- if ((s->flags&CODEC_FLAG_PASS1) && (s->picture_number & 31) == 0) {
- int j;
- char *p = avctx->stats_out;
- char *end = p + 1024*30;
- for (i = 0; i < 3; i++) {
- for (j = 0; j < 256; j++) {
- snprintf(p, end-p, "%"PRIu64" ", s->stats[i][j]);
- p += strlen(p);
- s->stats[i][j]= 0;
- }
- snprintf(p, end-p, "\n");
- p++;
- }
- } else
- avctx->stats_out[0] = '\0';
- if (!(s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) {
- flush_put_bits(&s->pb);
- s->dsp.bswap_buf((uint32_t*)pkt->data, (uint32_t*)pkt->data, size);
- }
-
- s->picture_number++;
-
- pkt->size = size * 4;
- pkt->flags |= AV_PKT_FLAG_KEY;
- *got_packet = 1;
-
- return 0;
-}
-
-static av_cold int encode_end(AVCodecContext *avctx)
-{
- HYuvContext *s = avctx->priv_data;
-
- ff_huffyuv_common_end(s);
-
- av_freep(&avctx->extradata);
- av_freep(&avctx->stats_out);
-
- av_frame_free(&avctx->coded_frame);
-
- return 0;
-}
-
-#if CONFIG_HUFFYUV_ENCODER
-AVCodec ff_huffyuv_encoder = {
- .name = "huffyuv",
- .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"),
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_HUFFYUV,
- .priv_data_size = sizeof(HYuvContext),
- .init = encode_init,
- .encode2 = encode_frame,
- .close = encode_end,
- .pix_fmts = (const enum AVPixelFormat[]){
- AV_PIX_FMT_YUV422P, AV_PIX_FMT_RGB24,
- AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE
- },
-};
-#endif
-
-#if CONFIG_FFVHUFF_ENCODER
-AVCodec ff_ffvhuff_encoder = {
- .name = "ffvhuff",
- .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"),
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_FFVHUFF,
- .priv_data_size = sizeof(HYuvContext),
- .init = encode_init,
- .encode2 = encode_frame,
- .close = encode_end,
- .pix_fmts = (const enum AVPixelFormat[]){
- AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_RGB24,
- AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE
- },
-};
-#endif
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 08:56:40 +0000