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authorTim Redfern <tim@eclectronics.org>2014-02-17 13:36:38 +0000
committerTim Redfern <tim@eclectronics.org>2014-02-17 13:36:38 +0000
commit22e28216336da876e1fd17f380ce42eaf1446769 (patch)
tree444dad3dc7e2656992d29f34f7bce31970c122a5 /ffmpeg/libavcodec/cljr.c
parentae5e8541f6e06e64c28719467cdf366ac57aff31 (diff)
chasing indexing error
Diffstat (limited to 'ffmpeg/libavcodec/cljr.c')
-rw-r--r--ffmpeg/libavcodec/cljr.c196
1 files changed, 0 insertions, 196 deletions
diff --git a/ffmpeg/libavcodec/cljr.c b/ffmpeg/libavcodec/cljr.c
deleted file mode 100644
index 7e0773b..0000000
--- a/ffmpeg/libavcodec/cljr.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * Cirrus Logic AccuPak (CLJR) codec
- * Copyright (c) 2003 Alex Beregszaszi
- *
- * 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
- * Cirrus Logic AccuPak codec.
- */
-
-#include "avcodec.h"
-#include "libavutil/opt.h"
-#include "get_bits.h"
-#include "internal.h"
-#include "put_bits.h"
-
-#if CONFIG_CLJR_DECODER
-static int decode_frame(AVCodecContext *avctx,
- void *data, int *got_frame,
- AVPacket *avpkt)
-{
- const uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
- GetBitContext gb;
- AVFrame * const p = data;
- int x, y, ret;
-
- if (avctx->height <= 0 || avctx->width <= 0) {
- av_log(avctx, AV_LOG_ERROR, "Invalid width or height\n");
- return AVERROR_INVALIDDATA;
- }
-
- if (buf_size / avctx->height < avctx->width) {
- av_log(avctx, AV_LOG_ERROR,
- "Resolution larger than buffer size. Invalid header?\n");
- return AVERROR_INVALIDDATA;
- }
-
- if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
- return ret;
- p->pict_type = AV_PICTURE_TYPE_I;
- p->key_frame = 1;
-
- init_get_bits(&gb, buf, buf_size * 8);
-
- for (y = 0; y < avctx->height; y++) {
- uint8_t *luma = &p->data[0][y * p->linesize[0]];
- uint8_t *cb = &p->data[1][y * p->linesize[1]];
- uint8_t *cr = &p->data[2][y * p->linesize[2]];
- for (x = 0; x < avctx->width; x += 4) {
- luma[3] = (get_bits(&gb, 5)*33) >> 2;
- luma[2] = (get_bits(&gb, 5)*33) >> 2;
- luma[1] = (get_bits(&gb, 5)*33) >> 2;
- luma[0] = (get_bits(&gb, 5)*33) >> 2;
- luma += 4;
- *(cb++) = get_bits(&gb, 6) << 2;
- *(cr++) = get_bits(&gb, 6) << 2;
- }
- }
-
- *got_frame = 1;
-
- return buf_size;
-}
-
-static av_cold int decode_init(AVCodecContext *avctx)
-{
- avctx->pix_fmt = AV_PIX_FMT_YUV411P;
- return 0;
-}
-
-AVCodec ff_cljr_decoder = {
- .name = "cljr",
- .long_name = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_CLJR,
- .init = decode_init,
- .decode = decode_frame,
- .capabilities = CODEC_CAP_DR1,
-};
-#endif
-
-#if CONFIG_CLJR_ENCODER
-typedef struct CLJRContext {
- AVClass *avclass;
- int dither_type;
-} CLJRContext;
-
-static av_cold int encode_init(AVCodecContext *avctx)
-{
- avctx->coded_frame = av_frame_alloc();
- if (!avctx->coded_frame)
- return AVERROR(ENOMEM);
-
- return 0;
-}
-
-static av_cold int encode_close(AVCodecContext *avctx)
-{
- av_frame_free(&avctx->coded_frame);
- return 0;
-}
-
-static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
- const AVFrame *p, int *got_packet)
-{
- CLJRContext *a = avctx->priv_data;
- PutBitContext pb;
- int x, y, ret;
- uint32_t dither= avctx->frame_number;
- static const uint32_t ordered_dither[2][2] =
- {
- { 0x10400000, 0x104F0000 },
- { 0xCB2A0000, 0xCB250000 },
- };
-
- if ((ret = ff_alloc_packet2(avctx, pkt, 32*avctx->height*avctx->width/4)) < 0)
- return ret;
-
- avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
- avctx->coded_frame->key_frame = 1;
-
- init_put_bits(&pb, pkt->data, pkt->size);
-
- for (y = 0; y < avctx->height; y++) {
- uint8_t *luma = &p->data[0][y * p->linesize[0]];
- uint8_t *cb = &p->data[1][y * p->linesize[1]];
- uint8_t *cr = &p->data[2][y * p->linesize[2]];
- for (x = 0; x < avctx->width; x += 4) {
- switch (a->dither_type) {
- case 0: dither = 0x492A0000; break;
- case 1: dither = dither * 1664525 + 1013904223; break;
- case 2: dither = ordered_dither[ y&1 ][ (x>>2)&1 ];break;
- }
- put_bits(&pb, 5, (249*(luma[3] + (dither>>29) )) >> 11);
- put_bits(&pb, 5, (249*(luma[2] + ((dither>>26)&7))) >> 11);
- put_bits(&pb, 5, (249*(luma[1] + ((dither>>23)&7))) >> 11);
- put_bits(&pb, 5, (249*(luma[0] + ((dither>>20)&7))) >> 11);
- luma += 4;
- put_bits(&pb, 6, (253*(*(cb++) + ((dither>>18)&3))) >> 10);
- put_bits(&pb, 6, (253*(*(cr++) + ((dither>>16)&3))) >> 10);
- }
- }
-
- flush_put_bits(&pb);
-
- pkt->size = put_bits_count(&pb) / 8;
- pkt->flags |= AV_PKT_FLAG_KEY;
- *got_packet = 1;
- return 0;
-}
-
-#define OFFSET(x) offsetof(CLJRContext, x)
-#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
-static const AVOption options[] = {
- { "dither_type", "Dither type", OFFSET(dither_type), AV_OPT_TYPE_INT, { .i64=1 }, 0, 2, VE},
- { NULL },
-};
-
-static const AVClass cljr_class = {
- .class_name = "cljr encoder",
- .item_name = av_default_item_name,
- .option = options,
- .version = LIBAVUTIL_VERSION_INT,
-};
-
-AVCodec ff_cljr_encoder = {
- .name = "cljr",
- .long_name = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_CLJR,
- .priv_data_size = sizeof(CLJRContext),
- .init = encode_init,
- .encode2 = encode_frame,
- .close = encode_close,
- .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV411P,
- AV_PIX_FMT_NONE },
- .priv_class = &cljr_class,
-};
-#endif