@@ -23,6 +23,7 @@
#include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h"
#include "avcodec.h"
+#include "encode.h"
#include "internal.h"
typedef struct DPXContext {
@@ -142,7 +143,7 @@ static void encode_gbrp10(AVCodecContext *avctx, const AVFrame *pic, uint8_t *ds
}
}
-static void encode_gbrp12(AVCodecContext *avctx, const AVFrame *pic, uint16_t *dst)
+static void encode_gbrp12(AVCodecContext *avctx, const AVFrame *pic, uint8_t *dst)
{
DPXContext *s = avctx->priv_data;
const uint16_t *src[3] = {(uint16_t*)pic->data[0],
@@ -163,11 +164,11 @@ static void encode_gbrp12(AVCodecContext *avctx, const AVFrame *pic, uint16_t *d
value[2] = AV_RL16(src[1] + x) << 4;
value[0] = AV_RL16(src[2] + x) << 4;
}
- for (i = 0; i < 3; i++)
- write16(dst++, value[i]);
+ for (i = 0; i < 3; i++, dst += 2)
+ write16(dst, value[i]);
}
- for (i = 0; i < pad; i++)
- *dst++ = 0;
+ for (i = 0; i < pad; i++, dst += 2)
+ AV_WN16(dst, 0);
for (i = 0; i < 3; i++)
src[i] += pic->linesize[i]/2;
}
@@ -196,7 +197,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
need_align = size - len;
size *= avctx->height;
}
- if ((ret = ff_alloc_packet2(avctx, pkt, size + HEADER_SIZE, 0)) < 0)
+ if ((ret = ff_get_encode_buffer(avctx, pkt, size + HEADER_SIZE, 0)) < 0)
return ret;
buf = pkt->data;
@@ -259,7 +260,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
encode_rgb48_10bit(avctx, frame, buf + HEADER_SIZE);
break;
case 12:
- encode_gbrp12(avctx, frame, (uint16_t*)(buf + HEADER_SIZE));
+ encode_gbrp12(avctx, frame, buf + HEADER_SIZE);
break;
default:
av_log(avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n", s->bits_per_component);
@@ -281,6 +282,7 @@ const AVCodec ff_dpx_encoder = {
.long_name = NULL_IF_CONFIG_SMALL("DPX (Digital Picture Exchange) image"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_DPX,
+ .capabilities = AV_CODEC_CAP_DR1,
.priv_data_size = sizeof(DPXContext),
.init = encode_init,
.encode2 = encode_frame,
When the packet size is known in advance like here, one can avoid an intermediate buffer for the packet data; this also makes it easy to allow user-supplied buffers. Only one thing needed to be changed: One can no longer use a pointer to uint16_t for the destination buffer because its alignment is unknown. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com> --- libavcodec/dpxenc.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-)