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avcodec/libaomenc: add support for setting arbitrary libaom options 

A new key & value API lets us gain access to newly added parameters
without adding explicit support for them in our wrapper. Add an
option utilizing this functionality in a similar manner to other
encoder libraries' wrappers.

Signed-off-by: Bohan Li <bohanli@google.com>
This commit is contained in:
Bohan Li 2021-02-08 20:04:41 -08:00 committed by Jan Ekström
parent e0fd35d867
commit 82aab8a4ee
2 changed files with 29 additions and 0 deletions
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11
doc/encoders.texi
View File

@ -1684,6 +1684,17 @@ Enable interintra compound. Default is true.
@item enable-smooth-interintra (@emph{boolean}) (Requires libaom >= v2.0.0)
Enable smooth interintra mode. Default is true.
@item aom-params
Set libaom options using a list of @var{key}=@var{value} pairs separated
by ":". For a list of supported options, see @command{aomenc --help} under the
section "AV1 Specific Options".
For example to specify libaom encoding options with @option{-aom-params}:
@example
ffmpeg -i input -c:v libaom-av1 -b:v 500K -aom-params tune=psnr:enable-tpl-model=1 output.mp4
@end example
@end table
@section libsvtav1

18
libavcodec/libaomenc.c
View File

@ -124,6 +124,7 @@ typedef struct AOMEncoderContext {
int enable_diff_wtd_comp;
int enable_dist_wtd_comp;
int enable_dual_filter;
AVDictionary *aom_params;
} AOMContext;
static const char *const ctlidstr[] = {
@ -874,6 +875,20 @@ static av_cold int aom_init(AVCodecContext *avctx,
codecctl_int(avctx, AV1E_SET_ENABLE_INTRABC, ctx->enable_intrabc);
#endif
#if AOM_ENCODER_ABI_VERSION >= 23
{
AVDictionaryEntry *en = NULL;
while ((en = av_dict_get(ctx->aom_params, "", en, AV_DICT_IGNORE_SUFFIX))) {
int ret = aom_codec_set_option(&ctx->encoder, en->key, en->value);
if (ret != AOM_CODEC_OK) {
log_encoder_error(avctx, en->key);
return AVERROR_EXTERNAL;
}
}
}
#endif
// provide dummy value to initialize wrapper, values will be updated each _encode()
aom_img_wrap(&ctx->rawimg, img_fmt, avctx->width, avctx->height, 1,
(unsigned char*)1);
@ -1299,6 +1314,9 @@ static const AVOption options[] = {
{ "enable-masked-comp", "Enable masked compound", OFFSET(enable_masked_comp), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, VE},
{ "enable-interintra-comp", "Enable interintra compound", OFFSET(enable_interintra_comp), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, VE},
{ "enable-smooth-interintra", "Enable smooth interintra mode", OFFSET(enable_smooth_interintra), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, VE},
#if AOM_ENCODER_ABI_VERSION >= 23
{ "aom-params", "Set libaom options using a :-separated list of key=value pairs", OFFSET(aom_params), AV_OPT_TYPE_DICT, { 0 }, 0, 0, VE },
#endif
{ NULL },
};