libmkv: from Handbrake project

Libmkv was started from Handbrake but is now unmaintained upstream.

Patches:
- A01: add constant to header file
- A02: Breaks API: Allow changing output sampling frequency
- P00: Fix accessing large files on Mingw32

pkgs/development/libraries/libmkv/A01-hbmv-pgs.patch

@@ -0,0 +1,12 @@
+diff --git a/include/libmkv.h b/include/libmkv.h
+index 146a91f..f03d608 100644
+--- a/include/libmkv.h
++++ b/include/libmkv.h
+@@ -94,6 +94,7 @@ extern "C" {
+ #define MK_SUBTITLE_USF    "S_TEXT/USF"
+ #define MK_SUBTITLE_VOBSUB "S_VOBSUB"
+ #define MK_SUBTITLE_BMP    "S_IMAGE/BMP"
++#define MK_SUBTITLE_PGS    "S_HDMV/PGS"
+ 
+ /* Official Tags */
+ #define MK_TAG_TITLE		"TITLE"

pkgs/development/libraries/libmkv/A02-audio-out-sampling-freq.patch

@@ -0,0 +1,28 @@
+diff --git a/include/libmkv.h b/include/libmkv.h
+index 146a91f..f03d608 100644
+--- a/include/libmkv.h
++++ b/include/libmkv.h
+@@ -203,6 +204,7 @@ struct mk_TrackConfig_s {
+ 		} video;
+ 		struct {
+ 			float samplingFreq;	/* Sampling Frequency in Hz */
++			float outputSamplingFreq;	/* Playback Sampling Frequency in Hz (e.g. for AAC w/SBR) */
+ 			unsigned channels;	/* Number of channels for this track */
+ 			unsigned bitDepth;	/* Bits per sample (PCM) */
+ 		} audio;
+diff --git a/src/tracks.c b/src/tracks.c
+index f9c7e48..a2a60ca 100644
+--- a/src/tracks.c
++++ b/src/tracks.c
+@@ -174,6 +174,11 @@ mk_Track *mk_createTrack(mk_Writer *w, mk_TrackConfig *tc)
+ 			/* SamplingFrequency */
+ 			if (mk_writeFloat(v, MATROSKA_ID_AUDIOSAMPLINGFREQ, tc->extra.audio.samplingFreq) < 0)
+ 				return NULL;
++			if (tc->extra.audio.outputSamplingFreq) {
++				/* Output SamplingFrequency */
++				if (mk_writeFloat(v, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, tc->extra.audio.outputSamplingFreq) < 0)
++					return NULL;
++			}
+ 			/* Channels */
+ 			if (mk_writeUInt(v, MATROSKA_ID_AUDIOCHANNELS, tc->extra.audio.channels) < 0)
+ 				return NULL;

pkgs/development/libraries/libmkv/P00-mingw-large-file.patch

@@ -0,0 +1,24 @@
+--- libmkv.orig/src/matroska.c	2009-01-12 23:14:26.000000000 -0800
++++ libmkv/src/matroska.c	2009-03-25 15:22:30.000000000 -0700
+@@ -27,6 +27,11 @@
+ 
+ #include <sys/time.h>
+ 
++#if defined( __MINGW32__ )
++#undef fseeko
++#define fseeko fseeko64
++#endif
++
+ #define RESERVED_SEEKHEAD 0x100
+ /* 256 bytes should be enough room for our Seek entries. */
+ #define RESERVED_CHAPTERS 0x800
+@@ -34,7 +39,7 @@
+ 
+ int mk_seekFile(mk_Writer *w, uint64_t pos)
+ {
+-	if (fseek(w->fp, pos, SEEK_SET))
++	if (fseeko(w->fp, pos, SEEK_SET))
+ 		return -1;
+ 
+ 	w->f_pos = pos;
+

pkgs/development/libraries/libmkv/default.nix

@@ -0,0 +1,29 @@
+{ stdenv, fetchgit, libtool, autoconf, automake }:
+
+stdenv.mkDerivation rec {
+  name = "libmkv-0.6.5.1p2";
+  
+  src = fetchgit {
+    url = https://github.com/saintdev/libmkv.git;
+    rev = "refs/tags/0.6.5.1";
+    sha256 = "1b0441x5rl5dbwrc0hq9jih111iil7ckqws3hcdj63jx2ma3s4hi";
+  };
+
+  nativeBuildInputs = [ libtool autoconf automake ];
+
+  # TODO fix library version
+  preConfigure = "sh bootstrap.sh";
+
+  # From Handbrake
+  patches = [
+    ./A01-hbmv-pgs.patch
+    ./A02-audio-out-sampling-freq.patch
+    ./P00-mingw-large-file.patch
+  ];
+
+  meta = {
+    homepage = https://github.com/saintdev/libmkv;
+    license = stdenv.lib.licenses.gpl2;
+    maintainers = [ stdenv.lib.maintainers.wmertens ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -5142,6 +5142,8 @@ let
 
   libmilter = callPackage ../development/libraries/libmilter { };
 
+  libmkv = callPackage ../development/libraries/libmkv { };
+
   libmms = callPackage ../development/libraries/libmms { };
 
   libmowgli = callPackage ../development/libraries/libmowgli { };