From: Omer Osman <[email protected]> For streams which contain DRC emtadata, the FDK decoder is able to control rendering of the decoded output. The rendering parameters are detailed in fdk_aac_dec_options [].
The default behavior is left up to the decoder. Signed-off-by: Omer Osman <[email protected]> --- libavcodec/libfdk-aacdec.c | 40 ++++++++++++++++++++++++++++++++++++++++ libavcodec/version.h | 2 +- 2 files changed, 41 insertions(+), 1 deletion(-) diff --git a/libavcodec/libfdk-aacdec.c b/libavcodec/libfdk-aacdec.c index 216e1c8..b054ebe 100644 --- a/libavcodec/libfdk-aacdec.c +++ b/libavcodec/libfdk-aacdec.c @@ -39,6 +39,10 @@ typedef struct FDKAACDecContext { uint8_t *decoder_buffer; uint8_t *anc_buffer; enum ConcealMethod conceal_method; + int drc_level; + int drc_boost; + int drc_heavy; + int drc_cut; } FDKAACDecContext; @@ -53,6 +57,14 @@ static const AVOption fdk_aac_dec_options[] = { { "spectral", "Spectral muting", 0, AV_OPT_TYPE_CONST, { .i64 = CONCEAL_METHOD_SPECTRAL_MUTING }, INT_MIN, INT_MAX, AD, "conceal" }, { "noise", "Noise Substitution", 0, AV_OPT_TYPE_CONST, { .i64 = CONCEAL_METHOD_NOISE_SUBSTITUTION }, INT_MIN, INT_MAX, AD, "conceal" }, { "energy", "Energy Interpolation", 0, AV_OPT_TYPE_CONST, { .i64 = CONCEAL_METHOD_ENERGY_INTERPOLATION }, INT_MIN, INT_MAX, AD, "conceal" }, + { "drc_boost", "Dynamic Range Control: boost, where [0] is none and [127] is max boost", + OFFSET(drc_boost), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 127, AD, NULL }, + { "drc_cut", "Dynamic Range Control: attenuation factor, where [0] is none and [127] is max compression", + OFFSET(drc_cut), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 127, AD, NULL }, + { "drc_level", "Dynamic Range Control: reference level, quantized to 0.25dB steps where [0] is 0dB and [127] is -31.75dB", + OFFSET(drc_level), AV_OPT_TYPE_INT, { .i64 = -1}, -1, 127, AD, NULL }, + { "drc_heavy", "Dynamic Range Control: heavy compression, where [1] is on (RF mode) and [0] is off", + OFFSET(drc_heavy), AV_OPT_TYPE_INT, { .i64 = -1}, -1, 1, AD, NULL }, { NULL } }; @@ -246,6 +258,34 @@ static av_cold int fdk_aac_decode_init(AVCodecContext *avctx) } } + if (s->drc_boost != -1) { + if (aacDecoder_SetParam(s->handle, AAC_DRC_BOOST_FACTOR, s->drc_boost) != AAC_DEC_OK) { + av_log(avctx, AV_LOG_ERROR, "Unable to set DRC boost factor in the decoder\n"); + return AVERROR_UNKNOWN; + } + } + + if (s->drc_cut != -1) { + if (aacDecoder_SetParam(s->handle, AAC_DRC_ATTENUATION_FACTOR, s->drc_cut) != AAC_DEC_OK) { + av_log(avctx, AV_LOG_ERROR, "Unable to set DRC attenuation factor in the decoder\n"); + return AVERROR_UNKNOWN; + } + } + + if (s->drc_level != -1) { + if (aacDecoder_SetParam(s->handle, AAC_DRC_REFERENCE_LEVEL, s->drc_level) != AAC_DEC_OK) { + av_log(avctx, AV_LOG_ERROR, "Unable to set DRC reference level in the decoder\n"); + return AVERROR_UNKNOWN; + } + } + + if (s->drc_heavy != -1) { + if (aacDecoder_SetParam(s->handle, AAC_DRC_HEAVY_COMPRESSION, s->drc_heavy) != AAC_DEC_OK) { + av_log(avctx, AV_LOG_ERROR, "Unable to set DRC heavy compression in the decoder\n"); + return AVERROR_UNKNOWN; + } + } + avctx->sample_fmt = AV_SAMPLE_FMT_S16; return 0; diff --git a/libavcodec/version.h b/libavcodec/version.h index 617b688..6b5f6dc 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -30,7 +30,7 @@ #define LIBAVCODEC_VERSION_MAJOR 56 #define LIBAVCODEC_VERSION_MINOR 5 -#define LIBAVCODEC_VERSION_MICRO 1 +#define LIBAVCODEC_VERSION_MICRO 2 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ LIBAVCODEC_VERSION_MINOR, \ -- 1.9.3 (Apple Git-50) _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
