2012-10-06 04:20:52 +00:00
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/*
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* Pinnacle TARGA CineWave YUV16 decoder
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* Copyright (c) 2012 Carl Eugen Hoyos
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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 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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* Lesser General Public License for more details.
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*
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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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#include "avcodec.h"
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2022-03-16 17:18:28 +00:00
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#include "codec_internal.h"
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2022-08-24 19:28:16 +00:00
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#include "decode.h"
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2012-10-06 04:20:52 +00:00
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static av_cold int y216_decode_init(AVCodecContext *avctx)
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{
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2012-10-08 18:54:00 +00:00
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avctx->pix_fmt = AV_PIX_FMT_YUV422P16;
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2012-10-06 04:20:52 +00:00
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avctx->bits_per_raw_sample = 14;
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return 0;
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}
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2022-03-30 19:33:24 +00:00
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static int y216_decode_frame(AVCodecContext *avctx, AVFrame *pic,
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2012-12-05 18:24:43 +00:00
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int *got_frame, AVPacket *avpkt)
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2012-10-06 04:20:52 +00:00
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{
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const uint16_t *src = (uint16_t *)avpkt->data;
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2017-05-07 01:49:06 +00:00
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uint16_t *y, *u, *v;
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int aligned_width = FFALIGN(avctx->width, 4);
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lavc: factorize ff_{thread_,re,}get_buffer error messages.
Coccinelle profile used:
@@
expression r, ctx, f, loglevel, str, flags;
@@
-if ((r = ff_get_buffer(ctx, f, flags)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_get_buffer(ctx, f, flags)) < 0)
+ return r;
@@
expression r, ctx, f, loglevel, str;
@@
-if ((r = ff_reget_buffer(ctx, f)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_reget_buffer(ctx, f)) < 0)
+ return r;
@@
expression r, ctx, f, loglevel, str, flags;
@@
-if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0)
+ return r;
...along with some manual patches for the remaining ones.
2013-03-12 07:41:53 +00:00
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int i, j, ret;
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2012-10-06 04:20:52 +00:00
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if (avpkt->size < 4 * avctx->height * aligned_width) {
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av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
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return AVERROR(EINVAL);
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}
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lavc: factorize ff_{thread_,re,}get_buffer error messages.
Coccinelle profile used:
@@
expression r, ctx, f, loglevel, str, flags;
@@
-if ((r = ff_get_buffer(ctx, f, flags)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_get_buffer(ctx, f, flags)) < 0)
+ return r;
@@
expression r, ctx, f, loglevel, str;
@@
-if ((r = ff_reget_buffer(ctx, f)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_reget_buffer(ctx, f)) < 0)
+ return r;
@@
expression r, ctx, f, loglevel, str, flags;
@@
-if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) {
- av_log(ctx, loglevel, str);
- return r;
-}
+if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0)
+ return r;
...along with some manual patches for the remaining ones.
2013-03-12 07:41:53 +00:00
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if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
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return ret;
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2012-10-06 04:20:52 +00:00
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2023-04-12 16:58:54 +00:00
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pic->flags |= AV_FRAME_FLAG_KEY;
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2012-10-06 04:20:52 +00:00
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pic->pict_type = AV_PICTURE_TYPE_I;
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y = (uint16_t *)pic->data[0];
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u = (uint16_t *)pic->data[1];
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v = (uint16_t *)pic->data[2];
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for (i = 0; i < avctx->height; i++) {
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for (j = 0; j < avctx->width >> 1; j++) {
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u[ j ] = src[4 * j ] << 2 | src[4 * j ] >> 14;
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y[2 * j ] = src[4 * j + 1] << 2 | src[4 * j + 1] >> 14;
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v[ j ] = src[4 * j + 2] << 2 | src[4 * j + 2] >> 14;
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y[2 * j + 1] = src[4 * j + 3] << 2 | src[4 * j + 3] >> 14;
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}
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y += pic->linesize[0] >> 1;
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u += pic->linesize[1] >> 1;
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v += pic->linesize[2] >> 1;
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src += aligned_width << 1;
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}
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2012-12-05 18:24:43 +00:00
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*got_frame = 1;
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2012-10-06 04:20:52 +00:00
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return avpkt->size;
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}
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2022-03-16 20:09:54 +00:00
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const FFCodec ff_targa_y216_decoder = {
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.p.name = "targa_y216",
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2022-08-29 11:38:02 +00:00
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CODEC_LONG_NAME("Pinnacle TARGA CineWave YUV16"),
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2022-03-16 20:09:54 +00:00
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.p.type = AVMEDIA_TYPE_VIDEO,
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.p.id = AV_CODEC_ID_TARGA_Y216,
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2012-10-06 04:20:52 +00:00
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.init = y216_decode_init,
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2022-03-30 21:28:24 +00:00
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FF_CODEC_DECODE_CB(y216_decode_frame),
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2022-03-16 20:09:54 +00:00
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.p.capabilities = AV_CODEC_CAP_DR1,
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2012-10-06 04:20:52 +00:00
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};
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