[FFmpeg-cvslog] nvenc: Extended rate-control support as provided by SDK 7
Yogender Gupta
git at videolan.org
Mon Mar 20 23:57:42 EET 2017
ffmpeg | branch: master | Yogender Gupta <ygupta at nvidia.com> | Sat Sep 24 17:55:00 2016 +0200| [70de2ea4261f860457a04e3d0c58c5543f403325] | committer: Luca Barbato
nvenc: Extended rate-control support as provided by SDK 7
Signed-off-by: Luca Barbato <lu_zero at gentoo.org>
Signed-off-by: Diego Biurrun <diego at biurrun.de>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=70de2ea4261f860457a04e3d0c58c5543f403325
---
libavcodec/nvenc.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
libavcodec/nvenc.h | 10 ++++++++++
libavcodec/nvenc_h264.c | 12 ++++++++++++
libavcodec/nvenc_hevc.c | 10 ++++++++++
libavcodec/version.h | 2 +-
5 files changed, 80 insertions(+), 1 deletion(-)
diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index 14651d4..0b6e4ce 100644
--- a/libavcodec/nvenc.c
+++ b/libavcodec/nvenc.c
@@ -610,6 +610,53 @@ static void nvenc_setup_rate_control(AVCodecContext *avctx)
if (rc->averageBitRate > 0)
avctx->bit_rate = rc->averageBitRate;
+
+#if NVENCAPI_MAJOR_VERSION >= 7
+ 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;
+#endif /* NVENCAPI_MAJOR_VERSION >= 7 */
}
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..faeafe9 100644
--- a/libavcodec/nvenc_h264.c
+++ b/libavcodec/nvenc_h264.c
@@ -77,6 +77,18 @@ static const AVOption options[] = {
{ "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 },
+#if NVENCAPI_MAJOR_VERSION >= 7
+ { "rc-lookahead", "Number of frames to look ahead for rate-control", OFFSET(rc_lookahead), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 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 means automatic) for constant quality mode in VBR rate control", OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 51, VE },
+#endif /* NVENCAPI_MAJOR_VERSION >= 7 */
{ NULL }
};
diff --git a/libavcodec/nvenc_hevc.c b/libavcodec/nvenc_hevc.c
index d564f07..de9af61 100644
--- a/libavcodec/nvenc_hevc.c
+++ b/libavcodec/nvenc_hevc.c
@@ -77,6 +77,16 @@ static const AVOption options[] = {
{ "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 },
+#if NVENCAPI_MAJOR_VERSION >= 7
+ { "rc-lookahead", "Number of frames to look ahead for rate-control", OFFSET(rc_lookahead), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 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 means automatic) for constant quality mode in VBR rate control", OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 51, VE },
+#endif /* NVENCAPI_MAJOR_VERSION >= 7 */
{ NULL }
};
diff --git a/libavcodec/version.h b/libavcodec/version.h
index 20edb61..71ec9ce 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -29,7 +29,7 @@
#define LIBAVCODEC_VERSION_MAJOR 57
#define LIBAVCODEC_VERSION_MINOR 27
-#define LIBAVCODEC_VERSION_MICRO 0
+#define LIBAVCODEC_VERSION_MICRO 1
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \
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