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[FFmpeg-devel,30/46] avcodec/r210enc: Avoid copying packet data, allow user-supplied buffers

Message ID HE1PR0301MB21546F34E1C7BE2B0D2DCBBF8F5F9@HE1PR0301MB2154.eurprd03.prod.outlook.com
State Accepted
Commit 5cb64caadfdf6ecb3d63489a27d5b1d2e2992b8d
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Series [FFmpeg-devel,01/46] avcodec/a64multienc: Avoid intermediate buffer
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Commit Message

Andreas Rheinhardt April 29, 2021, 11:57 p.m. UTC
When the packet size is known in advance like here, one can avoid
an intermediate buffer for the packet data by using
ff_get_encode_buffer() and also set AV_CODEC_CAP_DR1 at the same time.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 libavcodec/r210enc.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/libavcodec/r210enc.c b/libavcodec/r210enc.c
index 89518bce29..b143f516c1 100644
--- a/libavcodec/r210enc.c
+++ b/libavcodec/r210enc.c
@@ -21,6 +21,7 @@ 
  */
 
 #include "avcodec.h"
+#include "encode.h"
 #include "internal.h"
 #include "bytestream.h"
 
@@ -46,7 +47,8 @@  static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     uint8_t *srcr_line, *srcg_line, *srcb_line;
     uint8_t *dst;
 
-    if ((ret = ff_alloc_packet2(avctx, pkt, 4 * aligned_width * avctx->height, 0)) < 0)
+    ret = ff_get_encode_buffer(avctx, pkt, 4 * aligned_width * avctx->height, 0);
+    if (ret < 0)
         return ret;
 
     srcg_line = pic->data[0];
@@ -91,6 +93,7 @@  const AVCodec ff_r210_encoder = {
     .long_name      = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_R210,
+    .capabilities   = AV_CODEC_CAP_DR1,
     .init           = encode_init,
     .encode2        = encode_frame,
     .pix_fmts       = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE },
@@ -102,6 +105,7 @@  const AVCodec ff_r10k_encoder = {
     .long_name      = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_R10K,
+    .capabilities   = AV_CODEC_CAP_DR1,
     .init           = encode_init,
     .encode2        = encode_frame,
     .pix_fmts       = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE },
@@ -113,6 +117,7 @@  const AVCodec ff_avrp_encoder = {
     .long_name      = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_AVRP,
+    .capabilities   = AV_CODEC_CAP_DR1,
     .init           = encode_init,
     .encode2        = encode_frame,
     .pix_fmts       = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE },