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authorNidhi Makhijani <nidhimj22@gmail.com>2014-07-05 21:04:05 +0530
committerDiego Biurrun <diego@biurrun.de>2014-07-06 09:28:20 -0700
commit373a6dda5422186bc057297342a9e559a564595e (patch)
tree2f902f6ecc2524715e2e2e79feca8d68dc54b34b /libavcodec/cljr.c
parent02a7a5e330ec4373a761f63c292220a1de13b968 (diff)
downloadffmpeg-streaming-373a6dda5422186bc057297342a9e559a564595e.zip
ffmpeg-streaming-373a6dda5422186bc057297342a9e559a564595e.tar.gz
cljr: split decoder and encoder
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Diffstat (limited to 'libavcodec/cljr.c')
-rw-r--r--libavcodec/cljr.c166
1 files changed, 0 insertions, 166 deletions
diff --git a/libavcodec/cljr.c b/libavcodec/cljr.c
deleted file mode 100644
index ad0f729..0000000
--- a/libavcodec/cljr.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Cirrus Logic AccuPak (CLJR) codec
- * Copyright (c) 2003 Alex Beregszaszi
- *
- * This file is part of Libav.
- *
- * Libav 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.
- *
- * Libav 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 Libav; 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 "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) {
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- 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) << 3;
- luma[2] = get_bits(&gb, 5) << 3;
- luma[1] = get_bits(&gb, 5) << 3;
- luma[0] = get_bits(&gb, 5) << 3;
- 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
-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)
-{
- PutBitContext pb;
- int x, y, ret;
-
- if ((ret = ff_alloc_packet(pkt, 32*avctx->height*avctx->width/4)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
- 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) {
- put_bits(&pb, 5, luma[3] >> 3);
- put_bits(&pb, 5, luma[2] >> 3);
- put_bits(&pb, 5, luma[1] >> 3);
- put_bits(&pb, 5, luma[0] >> 3);
- luma += 4;
- put_bits(&pb, 6, *(cb++) >> 2);
- put_bits(&pb, 6, *(cr++) >> 2);
- }
- }
-
- flush_put_bits(&pb);
-
- pkt->size = put_bits_count(&pb) / 8;
- pkt->flags |= AV_PKT_FLAG_KEY;
- *got_packet = 1;
- return 0;
-}
-
-AVCodec ff_cljr_encoder = {
- .name = "cljr",
- .long_name = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_CLJR,
- .init = encode_init,
- .encode2 = encode_frame,
- .close = encode_close,
- .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV411P,
- AV_PIX_FMT_NONE },
-};
-#endif
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