68 lines
3.2 KiB
Diff
68 lines
3.2 KiB
Diff
From 7e929dac100916fc45cb95e231025f3439c20156 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
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Date: Tue, 4 Sep 2018 11:45:35 +0300
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Subject: [PATCH] libfdk-aacenc: Allow enabling the ELDv2 profile
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This is a new feature in FDK v2.
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Signed-off-by: Martin Storsjö <martin@martin.st>
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---
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libavcodec/libfdk-aacenc.c | 27 ++++++++++++++++++++++++++-
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1 file changed, 26 insertions(+), 1 deletion(-)
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diff --git a/libavcodec/libfdk-aacenc.c b/libavcodec/libfdk-aacenc.c
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index 92ad1762aea..f71a276403e 100644
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--- a/libavcodec/libfdk-aacenc.c
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+++ b/libavcodec/libfdk-aacenc.c
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@@ -36,6 +36,7 @@ typedef struct AACContext {
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HANDLE_AACENCODER handle;
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int afterburner;
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int eld_sbr;
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+ int eld_v2;
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int signaling;
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int latm;
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int header_period;
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@@ -47,6 +48,9 @@ typedef struct AACContext {
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static const AVOption aac_enc_options[] = {
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{ "afterburner", "Afterburner (improved quality)", offsetof(AACContext, afterburner), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
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{ "eld_sbr", "Enable SBR for ELD (for SBR in other configurations, use the -profile parameter)", offsetof(AACContext, eld_sbr), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
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+#if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
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+ { "eld_v2", "Enable ELDv2 (LD-MPS extension for ELD stereo signals)", offsetof(AACContext, eld_v2), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
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+#endif
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{ "signaling", "SBR/PS signaling style", offsetof(AACContext, signaling), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
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{ "default", "Choose signaling implicitly (explicit hierarchical by default, implicit if global header is disabled)", 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, 0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
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{ "implicit", "Implicit backwards compatible signaling", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
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@@ -149,7 +153,28 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
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switch (avctx->channels) {
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case 1: mode = MODE_1; sce = 1; cpe = 0; break;
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- case 2: mode = MODE_2; sce = 0; cpe = 1; break;
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+ case 2:
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+#if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
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+ // (profile + 1) to map from profile range to AOT range
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+ if (aot == FF_PROFILE_AAC_ELD + 1 && s->eld_v2) {
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+ if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELMODE,
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+ 128)) != AACENC_OK) {
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+ av_log(avctx, AV_LOG_ERROR, "Unable to enable ELDv2: %s\n",
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+ aac_get_error(err));
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+ goto error;
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+ } else {
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+ mode = MODE_212;
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+ sce = 1;
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+ cpe = 0;
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+ }
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+ } else
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+#endif
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+ {
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+ mode = MODE_2;
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+ sce = 0;
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+ cpe = 1;
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+ }
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+ break;
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case 3: mode = MODE_1_2; sce = 1; cpe = 1; break;
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case 4: mode = MODE_1_2_1; sce = 2; cpe = 1; break;
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case 5: mode = MODE_1_2_2; sce = 1; cpe = 2; break;
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