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https://github.com/FFmpeg/FFmpeg.git
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790f793844
There are lots of files that don't need it: The number of object files that actually need it went down from 2011 to 884 here. Keep it for external users in order to not cause breakages. Also improve the other headers a bit while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
106 lines
3.5 KiB
C
106 lines
3.5 KiB
C
/*
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* AVID Meridien encoder
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*
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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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#include "codec_internal.h"
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#include "encode.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/mem.h"
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static av_cold int avui_encode_init(AVCodecContext *avctx)
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{
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if (avctx->width != 720 || avctx->height != 486 && avctx->height != 576) {
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av_log(avctx, AV_LOG_ERROR, "Only 720x486 and 720x576 are supported.\n");
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return AVERROR(EINVAL);
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}
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if (!(avctx->extradata = av_mallocz(144 + AV_INPUT_BUFFER_PADDING_SIZE)))
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return AVERROR(ENOMEM);
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avctx->extradata_size = 144;
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memcpy(avctx->extradata, "\0\0\0\x18""APRGAPRG0001", 16);
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if (avctx->field_order > AV_FIELD_PROGRESSIVE) {
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avctx->extradata[19] = 2;
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} else {
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avctx->extradata[19] = 1;
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}
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memcpy(avctx->extradata + 24, "\0\0\0\x78""ARESARES0001""\0\0\0\x98", 20);
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AV_WB32(avctx->extradata + 44, avctx->width);
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AV_WB32(avctx->extradata + 48, avctx->height);
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memcpy(avctx->extradata + 52, "\0\0\0\x1\0\0\0\x20\0\0\0\x2", 12);
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return 0;
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}
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static int avui_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
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const AVFrame *pic, int *got_packet)
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{
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uint8_t *dst;
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int i, j, skip, ret, size, interlaced;
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interlaced = avctx->field_order > AV_FIELD_PROGRESSIVE;
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if (avctx->height == 486) {
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skip = 10;
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} else {
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skip = 16;
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}
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size = 2 * avctx->width * (avctx->height + skip) + 8 * interlaced;
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if ((ret = ff_get_encode_buffer(avctx, pkt, size, 0)) < 0)
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return ret;
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dst = pkt->data;
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if (!interlaced) {
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memset(dst, 0, avctx->width * skip);
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dst += avctx->width * skip;
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}
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for (i = 0; i <= interlaced; i++) {
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const uint8_t *src;
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if (interlaced && avctx->height == 486) {
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src = pic->data[0] + (1 - i) * pic->linesize[0];
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} else {
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src = pic->data[0] + i * pic->linesize[0];
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}
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memset(dst, 0, avctx->width * skip + 4 * i);
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dst += avctx->width * skip + 4 * i;
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for (j = 0; j < avctx->height; j += interlaced + 1) {
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memcpy(dst, src, avctx->width * 2);
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src += (interlaced + 1) * pic->linesize[0];
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dst += avctx->width * 2;
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}
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}
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*got_packet = 1;
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return 0;
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}
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const FFCodec ff_avui_encoder = {
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.p.name = "avui",
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CODEC_LONG_NAME("Avid Meridien Uncompressed"),
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.p.type = AVMEDIA_TYPE_VIDEO,
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.p.id = AV_CODEC_ID_AVUI,
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.p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_EXPERIMENTAL |
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AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
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.p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_UYVY422, AV_PIX_FMT_NONE },
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.init = avui_encode_init,
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FF_CODEC_ENCODE_CB(avui_encode_frame),
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};
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