Opus encoder using libopus

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Changelog

@@ -49,7 +49,7 @@ version <next>:
 - RTP depacketization of JPEG
 - Smooth Streaming live segmenter muxer
 - RTP packetization of JPEG
-- Opus decoder using libopus
+- Opus decoder and encoder using libopus
 
 
 version 0.8:

configure

@@ -1583,6 +1583,7 @@ libopencore_amrwb_decoder_deps="libopencore_amrwb"
 libopenjpeg_decoder_deps="libopenjpeg"
 libopenjpeg_encoder_deps="libopenjpeg"
 libopus_decoder_deps="libopus"
+libopus_encoder_deps="libopus"
 libschroedinger_decoder_deps="libschroedinger"
 libschroedinger_encoder_deps="libschroedinger"
 libspeex_decoder_deps="libspeex"

doc/general.texi

@@ -756,7 +756,7 @@ following image formats are supported:
 @item Musepack SV7           @tab     @tab  X
 @item Musepack SV8           @tab     @tab  X
 @item Nellymoser Asao        @tab  X  @tab  X
-@item Opus                   @tab     @tab  E
+@item Opus                   @tab  E  @tab  E
     @tab supported through external library libopus
 @item PCM A-law              @tab  X  @tab  X
 @item PCM mu-law             @tab  X  @tab  X

libavcodec/Makefile

@@ -581,7 +581,10 @@ OBJS-$(CONFIG_LIBOPENCORE_AMRNB_ENCODER)  += libopencore-amr.o
 OBJS-$(CONFIG_LIBOPENCORE_AMRWB_DECODER)  += libopencore-amr.o
 OBJS-$(CONFIG_LIBOPENJPEG_DECODER)        += libopenjpegdec.o
 OBJS-$(CONFIG_LIBOPENJPEG_ENCODER)        += libopenjpegenc.o
-OBJS-$(CONFIG_LIBOPUS_DECODER)            += libopusdec.o vorbis_data.o
+OBJS-$(CONFIG_LIBOPUS_DECODER)            += libopusdec.o libopus.o     \
+                                             vorbis_data.o
+OBJS-$(CONFIG_LIBOPUS_ENCODER)            += libopusenc.o libopus.o     \
+                                             vorbis_data.o audio_frame_queue.o
 OBJS-$(CONFIG_LIBSCHROEDINGER_DECODER)    += libschroedingerdec.o \
                                              libschroedinger.o
 OBJS-$(CONFIG_LIBSCHROEDINGER_ENCODER)    += libschroedingerenc.o \

libavcodec/allcodecs.c

@@ -393,7 +393,7 @@ void avcodec_register_all(void)
     REGISTER_ENCDEC  (LIBOPENCORE_AMRNB, libopencore_amrnb);
     REGISTER_DECODER (LIBOPENCORE_AMRWB, libopencore_amrwb);
     REGISTER_ENCDEC  (LIBOPENJPEG, libopenjpeg);
-    REGISTER_DECODER (LIBOPUS, libopus);
+    REGISTER_ENCDEC  (LIBOPUS, libopus);
     REGISTER_ENCDEC  (LIBSCHROEDINGER, libschroedinger);
     REGISTER_ENCDEC  (LIBSPEEX, libspeex);
     REGISTER_ENCODER (LIBTHEORA, libtheora);

libavcodec/libopus.c

+/*
+ * libopus encoder/decoder common code
+ * Copyright (c) 2012 Nicolas George
+ *
+ * This file is part of libav.
+ *
+ * libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <opus_defines.h>
+
+#include "libavutil/common.h"
+#include "libavutil/error.h"
+#include "libopus.h"
+
+int ff_opus_error_to_averror(int err)
+{
+    switch (err) {
+    case OPUS_BAD_ARG:
+        return AVERROR(EINVAL);
+    case OPUS_BUFFER_TOO_SMALL:
+        return AVERROR_UNKNOWN;
+    case OPUS_INTERNAL_ERROR:
+        return AVERROR(EFAULT);
+    case OPUS_INVALID_PACKET:
+        return AVERROR_INVALIDDATA;
+    case OPUS_UNIMPLEMENTED:
+        return AVERROR(ENOSYS);
+    case OPUS_INVALID_STATE:
+        return AVERROR_UNKNOWN;
+    case OPUS_ALLOC_FAIL:
+        return AVERROR(ENOMEM);
+    default:
+        return AVERROR(EINVAL);
+    }
+}

libavcodec/libopus.h

+/*
+ * libopus encoder/decoder common code
+ * Copyright (c) 2012 Nicolas George
+ *
+ * This file is part of libav.
+ *
+ * libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_LIBOPUS_H
+#define AVCODEC_LIBOPUS_H
+
+int ff_opus_error_to_averror(int err);
+
+#endif /* AVCODEC_LIBOPUS_H */

libavcodec/libopusdec.c

@@ -22,40 +22,18 @@
 #include <opus.h>
 #include <opus_multistream.h>
 
-#include "libavutil/common.h"
 #include "libavutil/avassert.h"
 #include "libavutil/intreadwrite.h"
 #include "avcodec.h"
 #include "vorbis.h"
 #include "mathops.h"
+#include "libopus.h"
 
 struct libopus_context {
     OpusMSDecoder *dec;
     AVFrame frame;
 };
 
-static int opus_error_to_averror(int err)
-{
-    switch (err) {
-    case OPUS_BAD_ARG:
-        return AVERROR(EINVAL);
-    case OPUS_BUFFER_TOO_SMALL:
-        return AVERROR_UNKNOWN;
-    case OPUS_INTERNAL_ERROR:
-        return AVERROR(EFAULT);
-    case OPUS_INVALID_PACKET:
-        return AVERROR_INVALIDDATA;
-    case OPUS_UNIMPLEMENTED:
-        return AVERROR(ENOSYS);
-    case OPUS_INVALID_STATE:
-        return AVERROR_UNKNOWN;
-    case OPUS_ALLOC_FAIL:
-        return AVERROR(ENOMEM);
-    default:
-        return AVERROR(EINVAL);
-    }
-}
-
 #define OPUS_HEAD_SIZE 19
 
 static av_cold int libopus_decode_init(AVCodecContext *avc)
@@ -107,7 +85,7 @@ static av_cold int libopus_decode_init(AVCodecContext *avc)
     if (!opus->dec) {
         av_log(avc, AV_LOG_ERROR, "Unable to create decoder: %s\n",
                opus_strerror(ret));
-        return opus_error_to_averror(ret);
+        return ff_opus_error_to_averror(ret);
     }
 
     ret = opus_multistream_decoder_ctl(opus->dec, OPUS_SET_GAIN(gain_db));
@@ -156,7 +134,7 @@ static int libopus_decode(AVCodecContext *avc, void *frame,
     if (nb_samples < 0) {
         av_log(avc, AV_LOG_ERROR, "Decoding error: %s\n",
                opus_strerror(nb_samples));
-        return opus_error_to_averror(nb_samples);
+        return ff_opus_error_to_averror(nb_samples);
     }
 
     opus->frame.nb_samples = nb_samples;

libavcodec/version.h

@@ -27,7 +27,7 @@
  */
 
 #define LIBAVCODEC_VERSION_MAJOR 54
-#define LIBAVCODEC_VERSION_MINOR 30
+#define LIBAVCODEC_VERSION_MINOR 31
 #define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \