package/ffmpeg: fix build with libfdk-aac 2.0.0

Add upstream patches to fix
http://autobuild.buildroot.net/results/909/9097a2b190f4032ff51eda531f4379a99da5181a/

after fdk-aac was bumped to 2.0.0:
https://git.buildroot.net/buildroot/commit/package/fdk-aac?id=31ff32824a4f3d09351367c3418b5605f9c40521

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/ffmpeg/0002-libfdk-aacenc-Fix-building-with-libfdk-aac-v2.patch

@@ -0,0 +1,100 @@
+From c60fb550302878aba7e86037451f7996e8069289 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
+Date: Fri, 31 Aug 2018 14:25:30 +0300
+Subject: [PATCH] libfdk-aacenc: Fix building with libfdk-aac v2
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+When flushing the encoder, we now need to provide non-null buffer
+parameters for everything, even if they are unused.
+
+The encoderDelay parameter has been replaced by two, nDelay and
+nDelayCore.
+
+Downloaded from
+http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=141c960e21d2860e354f9b90df136184dd00a9a8
+
+Signed-off-by: Martin Storsjö <martin@martin.st>
+[Bernd: rebased for ffmpeg 3.4.5]
+Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
+---
+ libavcodec/libfdk-aacenc.c | 34 +++++++++++++++++++++++++---------
+ 1 file changed, 25 insertions(+), 9 deletions(-)
+
+diff --git a/libavcodec/libfdk-aacenc.c b/libavcodec/libfdk-aacenc.c
+index 0e2051b468..f5adb407ed 100644
+--- a/libavcodec/libfdk-aacenc.c
++++ b/libavcodec/libfdk-aacenc.c
+@@ -26,6 +26,11 @@
+ #include "audio_frame_queue.h"
+ #include "internal.h"
+ 
++#define FDKENC_VER_AT_LEAST(vl0, vl1) \
++    (defined(AACENCODER_LIB_VL0) && \
++        ((AACENCODER_LIB_VL0 > vl0) || \
++         (AACENCODER_LIB_VL0 == vl0 && AACENCODER_LIB_VL1 >= vl1)))
++
+ typedef struct AACContext {
+     const AVClass *class;
+     HANDLE_AACENCODER handle;
+@@ -286,7 +291,11 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
+     }
+ 
+     avctx->frame_size = info.frameLength;
++#if FDKENC_VER_AT_LEAST(4, 0)
++    avctx->initial_padding = info.nDelay;
++#else
+     avctx->initial_padding = info.encoderDelay;
++#endif
+     ff_af_queue_init(avctx, &s->afq);
+ 
+     if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
+@@ -319,28 +328,35 @@ static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+     int out_buffer_size, out_buffer_element_size;
+     void *in_ptr, *out_ptr;
+     int ret;
++    uint8_t dummy_buf[1];
+     AACENC_ERROR err;
+ 
+     /* handle end-of-stream small frame and flushing */
+     if (!frame) {
++        /* Must be a non-null pointer, even if it's a dummy. We could use
++         * the address of anything else on the stack as well. */
++        in_ptr               = dummy_buf;
++        in_buffer_size       = 0;
++
+         in_args.numInSamples = -1;
+     } else {
+-        in_ptr                   = frame->data[0];
+-        in_buffer_size           = 2 * avctx->channels * frame->nb_samples;
+-        in_buffer_element_size   = 2;
++        in_ptr               = frame->data[0];
++        in_buffer_size       = 2 * avctx->channels * frame->nb_samples;
+ 
+-        in_args.numInSamples     = avctx->channels * frame->nb_samples;
+-        in_buf.numBufs           = 1;
+-        in_buf.bufs              = &in_ptr;
+-        in_buf.bufferIdentifiers = &in_buffer_identifier;
+-        in_buf.bufSizes          = &in_buffer_size;
+-        in_buf.bufElSizes        = &in_buffer_element_size;
++        in_args.numInSamples = avctx->channels * frame->nb_samples;
+ 
+         /* add current frame to the queue */
+         if ((ret = ff_af_queue_add(&s->afq, frame)) < 0)
+             return ret;
+     }
+ 
++    in_buffer_element_size   = 2;
++    in_buf.numBufs           = 1;
++    in_buf.bufs              = &in_ptr;
++    in_buf.bufferIdentifiers = &in_buffer_identifier;
++    in_buf.bufSizes          = &in_buffer_size;
++    in_buf.bufElSizes        = &in_buffer_element_size;
++
+     /* The maximum packet size is 6144 bits aka 768 bytes per channel. */
+     if ((ret = ff_alloc_packet2(avctx, avpkt, FFMAX(8192, 768 * avctx->channels), 0)) < 0)
+         return ret;
+-- 
+2.20.1
+

package/ffmpeg/0003-libfdk-aac-Consistently-use-a-proper-version-check-m.patch

@@ -0,0 +1,99 @@
+From 48be4c81e0ad081edab65e133e6e1bdec7de3b55 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
+Date: Tue, 4 Sep 2018 08:29:37 +0300
+Subject: [PATCH] libfdk-aac: Consistently use a proper version check macro for
+ detecting features
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+libfdk-aac: Consistently use a proper version check macro for detecting features
+
+The previous version checks checked explicitly for the version
+where the version define was added to the installed headers,
+making an "#ifdef AACDECODER_LIB_VL0" enough. Now that we have
+a need for more diverse version checks than this, convert all checks
+to such checks.
+
+Downloaded from
+http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=ffb9b7a6bab6c6bfd3dd9a7c32e3724209824999
+
+Signed-off-by: Martin Storsjö <martin@martin.st>
+Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
+---
+ libavcodec/libfdk-aacdec.c | 13 ++++++++-----
+ libavcodec/libfdk-aacenc.c |  6 +++---
+ 2 files changed, 11 insertions(+), 8 deletions(-)
+
+diff --git a/libavcodec/libfdk-aacdec.c b/libavcodec/libfdk-aacdec.c
+index 2857b9453f..ef51184ebd 100644
+--- a/libavcodec/libfdk-aacdec.c
++++ b/libavcodec/libfdk-aacdec.c
+@@ -25,9 +25,12 @@
+ #include "avcodec.h"
+ #include "internal.h"
+ 
+-/* The version macro is introduced the same time as the setting enum was
+- * changed, so this check should suffice. */
+-#ifndef AACDECODER_LIB_VL0
++#define FDKDEC_VER_AT_LEAST(vl0, vl1) \
++    (defined(AACDECODER_LIB_VL0) && \
++        ((AACDECODER_LIB_VL0 > vl0) || \
++         (AACDECODER_LIB_VL0 == vl0 && AACDECODER_LIB_VL1 >= vl1)))
++
++#if !FDKDEC_VER_AT_LEAST(2, 5) // < 2.5.10
+ #define AAC_PCM_MAX_OUTPUT_CHANNELS AAC_PCM_OUTPUT_CHANNELS
+ #endif
+ 
+@@ -72,7 +75,7 @@ static const AVOption fdk_aac_dec_options[] = {
+                      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    },
+-#ifdef AACDECODER_LIB_VL0
++#if FDKDEC_VER_AT_LEAST(2, 5) // 2.5.10
+     { "level_limit", "Signal level limiting", OFFSET(level_limit), AV_OPT_TYPE_INT, { .i64 = 0 }, -1, 1, AD },
+ #endif
+     { NULL }
+@@ -293,7 +296,7 @@ static av_cold int fdk_aac_decode_init(AVCodecContext *avctx)
+         }
+     }
+ 
+-#ifdef AACDECODER_LIB_VL0
++#if FDKDEC_VER_AT_LEAST(2, 5) // 2.5.10
+     if (aacDecoder_SetParam(s->handle, AAC_PCM_LIMITER_ENABLE, s->level_limit) != AAC_DEC_OK) {
+         av_log(avctx, AV_LOG_ERROR, "Unable to set in signal level limiting in the decoder\n");
+         return AVERROR_UNKNOWN;
+diff --git a/libavcodec/libfdk-aacenc.c b/libavcodec/libfdk-aacenc.c
+index f5adb407ed..91dcb5a1b9 100644
+--- a/libavcodec/libfdk-aacenc.c
++++ b/libavcodec/libfdk-aacenc.c
+@@ -156,7 +156,7 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
+     case 6: mode = MODE_1_2_2_1; sce = 2; cpe = 2; break;
+ /* The version macro is introduced the same time as the 7.1 support, so this
+    should suffice. */
+-#ifdef AACENCODER_LIB_VL0
++#if FDKENC_VER_AT_LEAST(3, 4) // 3.4.12
+     case 8:
+         sce = 2;
+         cpe = 3;
+@@ -291,7 +291,7 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
+     }
+ 
+     avctx->frame_size = info.frameLength;
+-#if FDKENC_VER_AT_LEAST(4, 0)
++#if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
+     avctx->initial_padding = info.nDelay;
+ #else
+     avctx->initial_padding = info.encoderDelay;
+@@ -412,7 +412,7 @@ static const uint64_t aac_channel_layout[] = {
+     AV_CH_LAYOUT_4POINT0,
+     AV_CH_LAYOUT_5POINT0_BACK,
+     AV_CH_LAYOUT_5POINT1_BACK,
+-#ifdef AACENCODER_LIB_VL0
++#if FDKENC_VER_AT_LEAST(3, 4) // 3.4.12
+     AV_CH_LAYOUT_7POINT1_WIDE_BACK,
+     AV_CH_LAYOUT_7POINT1,
+ #endif
+-- 
+2.20.1
+

package/ffmpeg/0004-libfdk-aac-Don-t-use-defined-in-a-define.patch

@@ -0,0 +1,72 @@
+From 452746d80fdaaaf1b546860eb78449c6de3678d7 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
+Date: Wed, 12 Sep 2018 20:03:12 +0300
+Subject: [PATCH] libfdk-aac: Don't use defined() in a #define
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+libfdk-aac: Don't use defined() in a #define
+
+MSVC expands the preprocessor directives differently, making the
+version check fail in the previous form.
+
+Clang can warn about this with -Wexpansion-to-defined (not currently
+enabled by default):
+warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined]
+
+Downloaded from
+http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=2a9e1c122eed66be1b26b747342b848300b226c7
+
+Signed-off-by: Martin Storsjö <martin@martin.st>
+Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
+---
+ libavcodec/libfdk-aacdec.c | 9 ++++++---
+ libavcodec/libfdk-aacenc.c | 9 ++++++---
+ 2 files changed, 12 insertions(+), 6 deletions(-)
+
+diff --git a/libavcodec/libfdk-aacdec.c b/libavcodec/libfdk-aacdec.c
+index ef51184ebd..0fbab36463 100644
+--- a/libavcodec/libfdk-aacdec.c
++++ b/libavcodec/libfdk-aacdec.c
+@@ -25,10 +25,13 @@
+ #include "avcodec.h"
+ #include "internal.h"
+ 
++#ifdef AACDECODER_LIB_VL0
+ #define FDKDEC_VER_AT_LEAST(vl0, vl1) \
+-    (defined(AACDECODER_LIB_VL0) && \
+-        ((AACDECODER_LIB_VL0 > vl0) || \
+-         (AACDECODER_LIB_VL0 == vl0 && AACDECODER_LIB_VL1 >= vl1)))
++    ((AACDECODER_LIB_VL0 > vl0) || \
++     (AACDECODER_LIB_VL0 == vl0 && AACDECODER_LIB_VL1 >= vl1))
++#else
++#define FDKDEC_VER_AT_LEAST(vl0, vl1) 0
++#endif
+ 
+ #if !FDKDEC_VER_AT_LEAST(2, 5) // < 2.5.10
+ #define AAC_PCM_MAX_OUTPUT_CHANNELS AAC_PCM_OUTPUT_CHANNELS
+diff --git a/libavcodec/libfdk-aacenc.c b/libavcodec/libfdk-aacenc.c
+index 91dcb5a1b9..8349e56dcb 100644
+--- a/libavcodec/libfdk-aacenc.c
++++ b/libavcodec/libfdk-aacenc.c
+@@ -26,10 +26,13 @@
+ #include "audio_frame_queue.h"
+ #include "internal.h"
+ 
++#ifdef AACENCODER_LIB_VL0
+ #define FDKENC_VER_AT_LEAST(vl0, vl1) \
+-    (defined(AACENCODER_LIB_VL0) && \
+-        ((AACENCODER_LIB_VL0 > vl0) || \
+-         (AACENCODER_LIB_VL0 == vl0 && AACENCODER_LIB_VL1 >= vl1)))
++    ((AACENCODER_LIB_VL0 > vl0) || \
++     (AACENCODER_LIB_VL0 == vl0 && AACENCODER_LIB_VL1 >= vl1))
++#else
++#define FDKENC_VER_AT_LEAST(vl0, vl1) 0
++#endif
+ 
+ typedef struct AACContext {
+     const AVClass *class;
+-- 
+2.20.1
+