From: Yogender Gupta <[email protected]>
As provided by SDK 7.
---
doc/APIchanges | 3 +++
libavcodec/nvenc.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
libavcodec/nvenc.h | 10 ++++++++++
libavcodec/nvenc_h264.c | 10 ++++++++++
libavcodec/nvenc_hevc.c | 8 ++++++++
libavcodec/version.h | 2 +-
6 files changed, 77 insertions(+), 1 deletion(-)
diff --git a/doc/APIchanges b/doc/APIchanges
index 5aefa81..b57c420 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -13,6 +13,9 @@ libavutil: 2015-08-28
API changes, most recent first:
+2016-xx-xx - xxxxxxx - lavc 59.28.0 - nvenc.c
+ Use the SDK 7 extended support for HEVC and rate-control improvements.
+
2016-xx-xx - xxxxxxx - lavc 59.27.0 - avcodec.h
Add the extended pixel format profile for HEVC.
diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index d951d9e..6e0e4a6 100644
--- a/libavcodec/nvenc.c
+++ b/libavcodec/nvenc.c
@@ -600,6 +600,51 @@ static void nvenc_setup_rate_control(AVCodecContext *avctx)
if (rc->averageBitRate > 0)
avctx->bit_rate = rc->averageBitRate;
+
+ if (ctx->aq) {
+ ctx->config.rcParams.enableAQ = 1;
+ ctx->config.rcParams.aqStrength = ctx->aq_strength;
+ av_log(avctx, AV_LOG_VERBOSE, "AQ Enabled\n");
+ }
+
+ if (ctx->temporal_aq) {
+ ctx->config.rcParams.enableTemporalAQ = 1;
+ av_log(avctx, AV_LOG_VERBOSE, "Temporal AQ Enabled\n");
+ }
+
+ if (ctx->rc_lookahead) {
+ int lkd_bound = FFMIN(ctx->nb_surfaces, ctx->async_depth) -
+ ctx->config.frameIntervalP - 4;
+
+ if (lkd_bound < 0) {
+ av_log(avctx, AV_LOG_WARNING,
+ "Lookahead Not Enabled. Increase Buffer Delay (-delay)\n");
+ } else {
+ ctx->config.rcParams.enableLookahead = 1;
+ ctx->config.rcParams.lookaheadDepth = av_clip(ctx->rc_lookahead,
0, lkd_bound);
+ ctx->config.rcParams.disableIadapt = ctx->no_scenecut;
+ ctx->config.rcParams.disableBadapt = !ctx->b_adapt;
+ av_log(avctx, AV_LOG_VERBOSE,
+ "Lookahead Enabled: depth %d, Scenecut %s, B-Adapt %s\n",
+ ctx->config.rcParams.lookaheadDepth,
+ ctx->config.rcParams.disableIadapt ? "Disabled" : "Enabled",
+ ctx->config.rcParams.disableBadapt ? "Disabled" :
"Enabled");
+ }
+ }
+
+ if (ctx->strict_gop) {
+ ctx->config.rcParams.strictGOPTarget = 1;
+ av_log(avctx, AV_LOG_VERBOSE, "Strict GOP Target Enabled\n");
+ }
+
+ if (ctx->nonref_p)
+ ctx->config.rcParams.enableNonRefP = 1;
+
+ if (ctx->zerolatency)
+ ctx->config.rcParams.zeroReorderDelay = 1;
+
+ if (ctx->quality)
+ ctx->config.rcParams.targetQuality = ctx->quality;
}
static int nvenc_setup_h264_config(AVCodecContext *avctx)
diff --git a/libavcodec/nvenc.h b/libavcodec/nvenc.h
index fddf433..dfd03b5 100644
--- a/libavcodec/nvenc.h
+++ b/libavcodec/nvenc.h
@@ -171,6 +171,16 @@ typedef struct NVENCContext {
int device;
int flags;
int async_depth;
+ int rc_lookahead;
+ int aq;
+ int no_scenecut;
+ int b_adapt;
+ int temporal_aq;
+ int zerolatency;
+ int nonref_p;
+ int strict_gop;
+ int aq_strength;
+ int quality;
} NVENCContext;
int ff_nvenc_encode_init(AVCodecContext *avctx);
diff --git a/libavcodec/nvenc_h264.c b/libavcodec/nvenc_h264.c
index d58ee88..59e25b1 100644
--- a/libavcodec/nvenc_h264.c
+++ b/libavcodec/nvenc_h264.c
@@ -71,12 +71,22 @@ static const AVOption options[] = {
{ "ll_2pass_quality", "Multi-pass optimized for image quality (only for
low-latency presets)", 0, AV_OPT_TYPE_CONST, { .i64 =
NV_ENC_PARAMS_RC_2_PASS_QUALITY }, 0, 0, VE, "rc" },
{ "ll_2pass_size", "Multi-pass optimized for constant frame size (only
for low-latency presets)", 0, AV_OPT_TYPE_CONST, { .i64 =
NV_ENC_PARAMS_RC_2_PASS_FRAMESIZE_CAP }, 0, 0, VE, "rc" },
{ "vbr_2pass", "Multi-pass variable bitrate mode",
0, AV_OPT_TYPE_CONST, { .i64 =
NV_ENC_PARAMS_RC_2_PASS_VBR }, 0, 0, VE, "rc" },
+ { "rc-lookahead", "Number of frames to look ahead for rate-control",
OFFSET(rc_lookahead), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
{ "surfaces", "Number of concurrent surfaces", OFFSET(nb_surfaces),
AV_OPT_TYPE_INT, { .i64 = 32 }, 0, INT_MAX, VE },
{ "device", "Select a specific NVENC device", OFFSET(device),
AV_OPT_TYPE_INT, { .i64 = -1 }, -2, INT_MAX, VE, "device"
},
{ "any", "Pick the first device available", 0,
AV_OPT_TYPE_CONST, { .i64 = ANY_DEVICE }, 0, 0, VE, "device" },
{ "list", "List the available devices", 0,
AV_OPT_TYPE_CONST, { .i64 = LIST_DEVICES }, 0, 0, VE, "device" },
{ "async_depth", "Delay frame output by the given amount of frames",
OFFSET(async_depth), AV_OPT_TYPE_INT, { .i64 = INT_MAX }, 0, INT_MAX, VE },
{ "delay", "Delay frame output by the given amount of frames",
OFFSET(async_depth), AV_OPT_TYPE_INT, { .i64 = INT_MAX }, 0, INT_MAX, VE },
+ { "no-scenecut", "When lookahead is enabled, set this to 1 to disable
adaptive I-frame insertion at scene cuts", OFFSET(no_scenecut),
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "b_adapt", "When lookahead is enabled, set this to 0 to disable adaptive
B-frame decision", OFFSET(b_adapt), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE },
+ { "spatial-aq", "set to 1 to enable Spatial AQ", OFFSET(aq),
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "temporal-aq", "set to 1 to enable Temporal AQ",
OFFSET(temporal_aq), AV_OPT_TYPE_INT, { .i64 = 0 }, 0,
1, VE },
+ { "zerolatency", "Set 1 to indicate zero latency operation (no reordering
delay)", OFFSET(zerolatency), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "nonref_p", "Set this to 1 to enable automatic insertion of
non-reference P-frames", OFFSET(nonref_p), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1,
VE },
+ { "strict_gop", "Set 1 to minimize GOP-to-GOP rate fluctuations",
OFFSET(strict_gop), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "aq-strength", "When Spatial AQ is enabled, this field is used to
specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive)",
OFFSET(aq_strength), AV_OPT_TYPE_INT, { .i64 = 8 }, 1, 15, VE },
+ { "cq", "Set target quality level (0 to 51, 0-automatic) for constant
quality mode in VBR rate control", OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0
}, 0, 51, VE },
{ NULL }
};
diff --git a/libavcodec/nvenc_hevc.c b/libavcodec/nvenc_hevc.c
index 7cee3c2..873d287 100644
--- a/libavcodec/nvenc_hevc.c
+++ b/libavcodec/nvenc_hevc.c
@@ -69,12 +69,20 @@ static const AVOption options[] = {
{ "ll_2pass_quality", "Multi-pass optimized for image quality (only for
low-latency presets)", 0, AV_OPT_TYPE_CONST, { .i64 =
NV_ENC_PARAMS_RC_2_PASS_QUALITY }, 0, 0, VE, "rc" },
{ "ll_2pass_size", "Multi-pass optimized for constant frame size (only
for low-latency presets)", 0, AV_OPT_TYPE_CONST, { .i64 =
NV_ENC_PARAMS_RC_2_PASS_FRAMESIZE_CAP }, 0, 0, VE, "rc" },
{ "vbr_2pass", "Multi-pass variable bitrate mode",
0, AV_OPT_TYPE_CONST, { .i64 =
NV_ENC_PARAMS_RC_2_PASS_VBR }, 0, 0, VE, "rc" },
+ { "rc-lookahead", "Number of frames to look ahead for rate-control",
OFFSET(rc_lookahead), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
{ "surfaces", "Number of concurrent surfaces", OFFSET(nb_surfaces),
AV_OPT_TYPE_INT, { .i64 = 32 }, 0, INT_MAX, VE },
{ "device", "Select a specific NVENC device", OFFSET(device),
AV_OPT_TYPE_INT, { .i64 = -1 }, -2, INT_MAX, VE, "device"
},
{ "any", "Pick the first device available", 0,
AV_OPT_TYPE_CONST, { .i64 = ANY_DEVICE }, 0, 0, VE, "device" },
{ "list", "List the available devices", 0,
AV_OPT_TYPE_CONST, { .i64 = LIST_DEVICES }, 0, 0, VE, "device" },
{ "async_depth", "Delay frame output by the given amount of frames",
OFFSET(async_depth), AV_OPT_TYPE_INT, { .i64 = INT_MAX }, 0, INT_MAX, VE },
{ "delay", "Delay frame output by the given amount of frames",
OFFSET(async_depth), AV_OPT_TYPE_INT, { .i64 = INT_MAX }, 0, INT_MAX, VE },
+ { "no-scenecut", "When lookahead is enabled, set this to 1 to disable
adaptive I-frame insertion at scene cuts", OFFSET(no_scenecut),
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "spatial_aq", "set to 1 to enable Spatial AQ", OFFSET(aq),
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "zerolatency", "Set 1 to indicate zero latency operation (no reordering
delay)", OFFSET(zerolatency), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "nonref_p", "Set this to 1 to enable automatic insertion of
non-reference P-frames", OFFSET(nonref_p), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1,
VE },
+ { "strict_gop", "Set 1 to minimize GOP-to-GOP rate fluctuations",
OFFSET(strict_gop), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "aq-strength", "When Spatial AQ is enabled, this field is used to
specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive)",
OFFSET(aq_strength), AV_OPT_TYPE_INT, { .i64 = 8 }, 1, 15, VE },
+ { "cq", "Set target quality level (0 to 51, 0-automatic) for constant
quality mode in VBR rate control", OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0
}, 0, 51, VE },
{ NULL }
};
diff --git a/libavcodec/version.h b/libavcodec/version.h
index 20edb61..64b0ee6 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -28,7 +28,7 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 57
-#define LIBAVCODEC_VERSION_MINOR 27
+#define LIBAVCODEC_VERSION_MINOR 28
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
--
2.8.3
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