Bohan Li: > This key & value API can greatly help with users who wants to try > libaom-av1 specific options that are not supported by ffmpeg options. > > As was previously discussed in this thread: > https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2020-October/271658. > > The commit that added the API to libaom: > https://aomedia.googlesource.com/aom/+/c1d42fe6615c96fc929257 > > The libaom issue tracker: > https://bugs.chromium.org/p/aomedia/issues/detail?id=2875 > > Signed-off-by: Bohan Li <boha...@google.com> > --- > doc/encoders.texi | 10 ++++++++++ > libavcodec/libaomenc.c | 32 ++++++++++++++++++++++++++++++++ > 2 files changed, 42 insertions(+) > > diff --git a/doc/encoders.texi b/doc/encoders.texi > index c2ba7d3e6f..3f32303b3d 100644 > --- a/doc/encoders.texi > +++ b/doc/encoders.texi > @@ -1684,6 +1684,16 @@ 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 libaom-params > +Set libaom options using a list of @var{key}=@var{value} pairs separated > +by ":". See @command{aomenc --help} for a list of options. > + > +For example to specify libaom encoding options with @option{-libaom-params}: > + > +@example > +ffmpeg -i input -c:v libaom-av1 -b:v 500K -libaom-params > tune=psnr:enable-tpl-model=1 output.mp4 > +@end example > + > @end table > > @section libsvtav1 > diff --git a/libavcodec/libaomenc.c b/libavcodec/libaomenc.c > index 342d0883e4..b7c5a64417 100644 > --- a/libavcodec/libaomenc.c > +++ b/libavcodec/libaomenc.c > @@ -124,6 +124,7 @@ typedef struct AOMEncoderContext { > int enable_diff_wtd_comp; > int enable_dist_wtd_comp; > int enable_dual_filter; > + AVDictionary *extra_params; > } AOMContext; > > static const char *const ctlidstr[] = { > @@ -318,6 +319,27 @@ static av_cold int codecctl_int(AVCodecContext *avctx, > return 0; > } > > +static av_cold int codec_set_option(AVCodecContext *avctx, > + const char* key, > + const char* value) > +{ > + AOMContext *ctx = avctx->priv_data; > + char buf[80]; > + int width = -30; > + int res; > + > + snprintf(buf, sizeof(buf), "%s:", key); > + av_log(avctx, AV_LOG_DEBUG, " %*s%s: %s\n", width, buf, key, value);
This will print key twice (unless your key is so long that it doesn't fit into buf anymore). Actually, I do not get why you use buf at all. > + > + res = aom_codec_set_option(&ctx->encoder, key, value); > + if (res != AOM_CODEC_OK) { > + log_encoder_error(avctx, buf); Unless key is oversized, your string will already end with a ':' and the message from log_encoder_error will contain a "::". So this is one more reason to get rid of buf. > + return AVERROR(EINVAL); > + } > + > + return 0; > +} > + > static av_cold int aom_free(AVCodecContext *avctx) > { > AOMContext *ctx = avctx->priv_data; > @@ -874,6 +896,15 @@ 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->extra_params, "", en, > AV_DICT_IGNORE_SUFFIX))) { > + codec_set_option(avctx, en->key, en->value); > + } > + } > +#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 +1330,7 @@ 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}, > + { "libaom-params", "Extra parameters for libaom", > OFFSET(extra_params), AV_OPT_TYPE_DICT, { 0 }, > 0, 0, VE }, > { NULL }, > }; > > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".