* PC Paintbrush PCX (.pcx) image encoder
* Copyright (c) 2009 Daniel Verkamp <daniel at drv.nu>
*
- * 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
*/
/**
- * PCX image encoder
* @file
+ * PCX image encoder
* @author Daniel Verkamp
- * @sa http://www.qzx.com/pc-gpe/pcx.txt
+ * @see http://www.qzx.com/pc-gpe/pcx.txt
*/
#include "avcodec.h"
#include "bytestream.h"
-
-typedef struct PCXContext {
- AVFrame picture;
-} PCXContext;
+#include "internal.h"
static const uint32_t monoblack_pal[16] = { 0x000000, 0xFFFFFF };
static av_cold int pcx_encode_init(AVCodecContext *avctx)
{
- PCXContext *s = avctx->priv_data;
-
- avcodec_get_frame_defaults(&s->picture);
- avctx->coded_frame = &s->picture;
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+ avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
+ avctx->coded_frame->key_frame = 1;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
return 0;
}
// check worst-case upper bound on dst_size
if (dst_size < 2LL * src_plane_size * nplanes || src_plane_size <= 0)
- return -1;
+ return AVERROR(EINVAL);
for (p = 0; p < nplanes; p++) {
int count = 1;
return dst - dst_start;
}
-static int pcx_encode_frame(AVCodecContext *avctx,
- unsigned char *buf, int buf_size, void *data)
+static int pcx_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *frame, int *got_packet)
{
- PCXContext *s = avctx->priv_data;
- AVFrame *const pict = &s->picture;
- const uint8_t *buf_start = buf;
- const uint8_t *buf_end = buf + buf_size;
+ const uint8_t *buf_end;
+ uint8_t *buf;
- int bpp, nplanes, i, y, line_bytes, written;
+ int bpp, nplanes, i, y, line_bytes, written, ret, max_pkt_size;
const uint32_t *pal = NULL;
const uint8_t *src;
- *pict = *(AVFrame *)data;
- pict->pict_type = FF_I_TYPE;
- pict->key_frame = 1;
-
if (avctx->width > 65535 || avctx->height > 65535) {
av_log(avctx, AV_LOG_ERROR, "image dimensions do not fit in 16 bits\n");
- return -1;
+ return AVERROR(EINVAL);
}
switch (avctx->pix_fmt) {
- case PIX_FMT_RGB24:
+ case AV_PIX_FMT_RGB24:
bpp = 8;
nplanes = 3;
break;
- case PIX_FMT_RGB8:
- case PIX_FMT_BGR8:
- case PIX_FMT_RGB4_BYTE:
- case PIX_FMT_BGR4_BYTE:
- case PIX_FMT_GRAY8:
- case PIX_FMT_PAL8:
+ case AV_PIX_FMT_RGB8:
+ case AV_PIX_FMT_BGR8:
+ case AV_PIX_FMT_RGB4_BYTE:
+ case AV_PIX_FMT_BGR4_BYTE:
+ case AV_PIX_FMT_GRAY8:
+ case AV_PIX_FMT_PAL8:
bpp = 8;
nplanes = 1;
- pal = (uint32_t *)pict->data[1];
+ pal = (uint32_t *)frame->data[1];
break;
- case PIX_FMT_MONOBLACK:
+ case AV_PIX_FMT_MONOBLACK:
bpp = 1;
nplanes = 1;
pal = monoblack_pal;
break;
default:
av_log(avctx, AV_LOG_ERROR, "unsupported pixfmt\n");
- return -1;
+ return AVERROR(EINVAL);
}
line_bytes = (avctx->width * bpp + 7) >> 3;
line_bytes = (line_bytes + 1) & ~1;
+ max_pkt_size = 128 + avctx->height * 2 * line_bytes * nplanes + (pal ? 256*3 + 1 : 0);
+ if ((ret = ff_alloc_packet(pkt, max_pkt_size)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n", max_pkt_size);
+ return ret;
+ }
+ buf = pkt->data;
+ buf_end = pkt->data + pkt->size;
+
bytestream_put_byte(&buf, 10); // manufacturer
bytestream_put_byte(&buf, 5); // version
bytestream_put_byte(&buf, 1); // encoding
bytestream_put_byte(&buf, nplanes); // number of planes
bytestream_put_le16(&buf, line_bytes); // scanline plane size in bytes
- while (buf - buf_start < 128)
+ while (buf - pkt->data < 128)
*buf++= 0;
- src = pict->data[0];
+ src = frame->data[0];
for (y = 0; y < avctx->height; y++) {
if ((written = pcx_rle_encode(buf, buf_end - buf,
src, line_bytes, nplanes)) < 0) {
av_log(avctx, AV_LOG_ERROR, "buffer too small\n");
- return -1;
+ return AVERROR_BUG;
}
buf += written;
- src += pict->linesize[0];
+ src += frame->linesize[0];
}
if (nplanes == 1 && bpp == 8) {
if (buf_end - buf < 257) {
av_log(avctx, AV_LOG_ERROR, "buffer too small\n");
- return -1;
+ return AVERROR_BUG;
}
bytestream_put_byte(&buf, 12);
for (i = 0; i < 256; i++) {
}
}
- return buf - buf_start;
+ pkt->size = buf - pkt->data;
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ *got_packet = 1;
+
+ return 0;
}
-AVCodec pcx_encoder = {
- "pcx",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_PCX,
- sizeof(PCXContext),
- pcx_encode_init,
- pcx_encode_frame,
- NULL,
- .pix_fmts = (const enum PixelFormat[]){
- PIX_FMT_RGB24,
- PIX_FMT_RGB8, PIX_FMT_BGR8, PIX_FMT_RGB4_BYTE, PIX_FMT_BGR4_BYTE, PIX_FMT_GRAY8, PIX_FMT_PAL8,
- PIX_FMT_MONOBLACK,
- PIX_FMT_NONE},
- .long_name = NULL_IF_CONFIG_SMALL("PC Paintbrush PCX image"),
+AVCodec ff_pcx_encoder = {
+ .name = "pcx",
+ .long_name = NULL_IF_CONFIG_SMALL("PC Paintbrush PCX image"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_PCX,
+ .init = pcx_encode_init,
+ .encode2 = pcx_encode_frame,
+ .pix_fmts = (const enum AVPixelFormat[]){
+ AV_PIX_FMT_RGB24,
+ AV_PIX_FMT_RGB8, AV_PIX_FMT_BGR8, AV_PIX_FMT_RGB4_BYTE, AV_PIX_FMT_BGR4_BYTE,
+ AV_PIX_FMT_GRAY8, AV_PIX_FMT_PAL8,
+ AV_PIX_FMT_MONOBLACK,
+ AV_PIX_FMT_NONE
+ },
};
projects / ffmpeg / blobdiff