Merge commit 'f5d2c597e99af218b0d4d1cf9737c7e68ee934e4'

* commit 'f5d2c597e99af218b0d4d1cf9737c7e68ee934e4':
  build: fix library installation on cygwin
  mpc8: add a flush function
  mpc8: set packet duration and stream start time instead of tracking frames

Conflicts:
	libavformat/mpc8.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

configure

@@ -2923,7 +2923,10 @@ case $target_os in
         SLIBSUF=".dll"
         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
-        SHFLAGS='-shared -Wl,--enable-auto-image-base'
+        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
+        SLIB_INSTALL_LINKS=
+        SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
+        SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
         objformat="win32"
         enable dos_paths
         check_cflags -fno-common

libavcodec/mpc8.c

@@ -428,6 +428,12 @@ static int mpc8_decode_frame(AVCodecContext * avctx, void *data,
     return c->cur_frame ? c->last_bits_used >> 3 : buf_size;
 }
 
+static av_cold void mpc8_decode_flush(AVCodecContext *avctx)
+{
+    MPCContext *c = avctx->priv_data;
+    c->cur_frame = 0;
+}
+
 AVCodec ff_mpc8_decoder = {
     .name           = "mpc8",
     .type           = AVMEDIA_TYPE_AUDIO,
@@ -435,6 +441,7 @@ AVCodec ff_mpc8_decoder = {
     .priv_data_size = sizeof(MPCContext),
     .init           = mpc8_decode_init,
     .decode         = mpc8_decode_frame,
+    .flush          = mpc8_decode_flush,
     .capabilities   = CODEC_CAP_DR1,
     .long_name      = NULL_IF_CONFIG_SMALL("Musepack SV8"),
 };

libavformat/mpc8.c

@@ -49,7 +49,6 @@ static const int mpc8_rate[8] = { 44100, 48000, 37800, 32000, -1, -1, -1, -1 };
 
 typedef struct {
     int ver;
-    int frame;
     int64_t header_pos;
     int64_t samples;
 
@@ -240,6 +239,7 @@ static int mpc8_read_header(AVFormatContext *s)
     st->codec->channels = (st->codec->extradata[1] >> 4) + 1;
     st->codec->sample_rate = mpc8_rate[st->codec->extradata[0] >> 5];
     avpriv_set_pts_info(st, 32, 1152  << (st->codec->extradata[1]&3)*2, st->codec->sample_rate);
+    st->start_time = 0;
     st->duration = c->samples / (1152 << (st->codec->extradata[1]&3)*2);
     size -= avio_tell(pb) - pos;
     if (size > 0)
@@ -274,7 +274,7 @@ static int mpc8_read_packet(AVFormatContext *s, AVPacket *pkt)
             if(av_get_packet(s->pb, pkt, size) < 0)
                 return AVERROR(ENOMEM);
             pkt->stream_index = 0;
-            pkt->pts = c->frame++;
+            pkt->duration     = 1;
             return 0;
         }
         if(tag == TAG_STREAMEND)
@@ -287,13 +287,12 @@ static int mpc8_read_packet(AVFormatContext *s, AVPacket *pkt)
 static int mpc8_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
 {
     AVStream *st = s->streams[stream_index];
-    MPCContext *c = s->priv_data;
     int index = av_index_search_timestamp(st, timestamp, flags);
 
     if(index < 0) return -1;
     if (avio_seek(s->pb, st->index_entries[index].pos, SEEK_SET) < 0)
         return -1;
-    c->frame = st->index_entries[index].timestamp;
+    ff_update_cur_dts(s, st, st->index_entries[index].timestamp);
     return 0;
 }