[FFmpeg-devel] [PATCH] avcodec/libaomenc: add an option to set the encoder "usage"
James Almer
jamrial at gmail.com
Thu Jan 23 02:08:43 EET 2020
This allows the user enable the realtime encoding speed mode
Signed-off-by: James Almer <jamrial at gmail.com>
---
The g_usage field is present since 1.0.0, but the AOM_USAGE_* defines were
introduced with the real time mode about a year ago. Builds before that
addition simply ignore the field.
libavcodec/libaomenc.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/libavcodec/libaomenc.c b/libavcodec/libaomenc.c
index c36313bf9d..096aadbe1c 100644
--- a/libavcodec/libaomenc.c
+++ b/libavcodec/libaomenc.c
@@ -93,6 +93,7 @@ typedef struct AOMEncoderContext {
int enable_global_motion;
int enable_intrabc;
int enable_restoration;
+ int usage;
} AOMContext;
static const char *const ctlidstr[] = {
@@ -551,6 +552,8 @@ static av_cold int aom_init(AVCodecContext *avctx,
enccfg.g_threads =
FFMIN(avctx->thread_count ? avctx->thread_count : av_cpu_count(), 64);
+ enccfg.g_usage = ctx->usage;
+
if (ctx->lag_in_frames >= 0)
enccfg.g_lag_in_frames = ctx->lag_in_frames;
@@ -1090,6 +1093,9 @@ static const AVOption options[] = {
{ "enable-global-motion", "Enable global motion", OFFSET(enable_global_motion), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, VE},
{ "enable-intrabc", "Enable intra block copy prediction mode", OFFSET(enable_intrabc), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, VE},
{ "enable-restoration", "Enable Loop Restoration filtering", OFFSET(enable_restoration), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, VE},
+ { "usage", "Quality and compression efficiency vs speed tradeof", OFFSET(usage), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, VE, "usage"},
+ { "good", "Good quality", 0, AV_OPT_TYPE_CONST, {.i64 = 0 /* AOM_USAGE_GOOD_QUALITY */}, 0, 0, VE, "usage"},
+ { "realtime", "Realtime encoding", 0, AV_OPT_TYPE_CONST, {.i64 = 1 /* AOM_USAGE_REALTIME */}, 0, 0, VE, "usage"},
{ NULL },
};
--
2.25.0
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