* Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
* Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avcodec.h"
-#include "libavcodec/bytestream.h"
+#include "bytestream.h"
+#include "internal.h"
static av_cold int encode_init(AVCodecContext *avctx)
{
if (avctx->width & 1) {
av_log(avctx, AV_LOG_ERROR, "v210 needs even width\n");
- return -1;
- }
-
- if (avctx->pix_fmt != PIX_FMT_YUV422P16) {
- av_log(avctx, AV_LOG_ERROR, "v210 needs YUV422P16\n");
- return -1;
+ return AVERROR(EINVAL);
}
if (avctx->bits_per_raw_sample != 10)
avctx->bits_per_raw_sample);
avctx->coded_frame = avcodec_alloc_frame();
+ if (!avctx->coded_frame)
+ return AVERROR(ENOMEM);
- avctx->coded_frame->key_frame = 1;
- avctx->coded_frame->pict_type = FF_I_TYPE;
+ avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
return 0;
}
-static int encode_frame(AVCodecContext *avctx, unsigned char *buf,
- int buf_size, void *data)
+static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *pic, int *got_packet)
{
- const AVFrame *pic = data;
int aligned_width = ((avctx->width + 47) / 48) * 48;
int stride = aligned_width * 8 / 3;
- int h, w;
+ int line_padding = stride - ((avctx->width * 8 + 11) / 12) * 4;
+ int h, w, ret;
const uint16_t *y = (const uint16_t*)pic->data[0];
const uint16_t *u = (const uint16_t*)pic->data[1];
const uint16_t *v = (const uint16_t*)pic->data[2];
- uint8_t *p = buf;
- uint8_t *pdst = buf;
+ PutByteContext p;
- if (buf_size < aligned_width * avctx->height * 8 / 3) {
- av_log(avctx, AV_LOG_ERROR, "output buffer too small\n");
- return -1;
+ if ((ret = ff_alloc_packet(pkt, avctx->height * stride)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+ return ret;
}
+ bytestream2_init_writer(&p, pkt->data, pkt->size);
+
+#define CLIP(v) av_clip(v, 4, 1019)
+
#define WRITE_PIXELS(a, b, c) \
do { \
- val = (*a++ >> 6) | \
- ((*b++ & 0xFFC0) << 4); \
- val|= (*c++ & 0xFFC0) << 14; \
- bytestream_put_le32(&p, val); \
+ val = CLIP(*a++); \
+ val |= (CLIP(*b++) << 10) | \
+ (CLIP(*c++) << 20); \
+ bytestream2_put_le32u(&p, val); \
} while (0)
for (h = 0; h < avctx->height; h++) {
if (w < avctx->width - 1) {
WRITE_PIXELS(u, y, v);
- val = *y++ >> 6;
+ val = CLIP(*y++);
if (w == avctx->width - 2)
- bytestream_put_le32(&p, val);
+ bytestream2_put_le32u(&p, val);
}
if (w < avctx->width - 3) {
- val |=((*u++ & 0xFFC0) << 4) |
- ((*y++ & 0xFFC0) << 14);
- bytestream_put_le32(&p, val);
+ val |= (CLIP(*u++) << 10) | (CLIP(*y++) << 20);
+ bytestream2_put_le32u(&p, val);
- val = (*v++ >> 6) |
- (*y++ & 0xFFC0) << 4;
- bytestream_put_le32(&p, val);
+ val = CLIP(*v++) | (CLIP(*y++) << 10);
+ bytestream2_put_le32u(&p, val);
}
- pdst += stride;
- memset(p, 0, pdst - p);
- p = pdst;
+ bytestream2_set_buffer(&p, 0, line_padding);
+
y += pic->linesize[0] / 2 - avctx->width;
u += pic->linesize[1] / 2 - avctx->width / 2;
v += pic->linesize[2] / 2 - avctx->width / 2;
}
- return p - buf;
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ *got_packet = 1;
+ return 0;
}
static av_cold int encode_close(AVCodecContext *avctx)
return 0;
}
-AVCodec v210_encoder = {
- "v210",
- CODEC_TYPE_VIDEO,
- CODEC_ID_V210,
- 0,
- encode_init,
- encode_frame,
- encode_close,
- .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV422P16, PIX_FMT_NONE},
- .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
+AVCodec ff_v210_encoder = {
+ .name = "v210",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_V210,
+ .init = encode_init,
+ .encode2 = encode_frame,
+ .close = encode_close,
+ .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV422P10, AV_PIX_FMT_NONE },
+ .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
};
projects / ffmpeg / blobdiff