3 * Copyright (c) 2012 Carl Eugen Hoyos
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 static av_cold int v408_decode_init(AVCodecContext *avctx)
27 avctx->pix_fmt = AV_PIX_FMT_YUVA444P;
29 avctx->coded_frame = avcodec_alloc_frame();
31 if (!avctx->coded_frame) {
32 av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
33 return AVERROR(ENOMEM);
39 static int v408_decode_frame(AVCodecContext *avctx, void *data,
40 int *got_frame, AVPacket *avpkt)
42 AVFrame *pic = avctx->coded_frame;
43 const uint8_t *src = avpkt->data;
44 uint8_t *y, *u, *v, *a;
48 avctx->release_buffer(avctx, pic);
50 if (avpkt->size < 4 * avctx->height * avctx->width) {
51 av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
52 return AVERROR(EINVAL);
57 if (ff_get_buffer(avctx, pic) < 0) {
58 av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer.\n");
59 return AVERROR(ENOMEM);
63 pic->pict_type = AV_PICTURE_TYPE_I;
70 for (i = 0; i < avctx->height; i++) {
71 for (j = 0; j < avctx->width; j++) {
72 if (avctx->codec_id==AV_CODEC_ID_AYUV) {
85 y += pic->linesize[0];
86 u += pic->linesize[1];
87 v += pic->linesize[2];
88 a += pic->linesize[3];
92 *(AVFrame *)data = *pic;
97 static av_cold int v408_decode_close(AVCodecContext *avctx)
99 if (avctx->coded_frame->data[0])
100 avctx->release_buffer(avctx, avctx->coded_frame);
102 av_freep(&avctx->coded_frame);
107 #if CONFIG_AYUV_DECODER
108 AVCodec ff_ayuv_decoder = {
110 .type = AVMEDIA_TYPE_VIDEO,
111 .id = AV_CODEC_ID_AYUV,
112 .init = v408_decode_init,
113 .decode = v408_decode_frame,
114 .close = v408_decode_close,
115 .capabilities = CODEC_CAP_DR1,
116 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),
119 #if CONFIG_V408_DECODER
120 AVCodec ff_v408_decoder = {
122 .type = AVMEDIA_TYPE_VIDEO,
123 .id = AV_CODEC_ID_V408,
124 .init = v408_decode_init,
125 .decode = v408_decode_frame,
126 .close = v408_decode_close,
127 .capabilities = CODEC_CAP_DR1,
128 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),