Merge commit 'a0b7e289075dccf223b7f407790d8a86fc5d77e8'

* commit 'a0b7e289075dccf223b7f407790d8a86fc5d77e8':
  aviobuf: Partial support for reading in read/write contexts
  build: Avoid detecting bogus components named 'x'

Conflicts:
	libavcodec/allcodecs.c
	libavdevice/alldevices.c
	libavformat/allformats.c
	libavformat/aviobuf.c

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

1 files changed, 8 insertions, 1 deletions

diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 6733b59dab..95a41bbbc6 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -483,7 +483,7 @@ int avio_read(AVIOContext *s, unsigned char *buf, int size)
         len = s->buf_end - s->buf_ptr;
         if (len > size)
             len = size;
-        if (len == 0) {
+        if (len == 0 || s->write_flag) {
             if((s->direct || size > s->buffer_size) && !s->update_checksum){
                 if(s->read_packet)
                     len = s->read_packet(s->opaque, buf, size);
@@ -529,6 +529,13 @@ int ffio_read_partial(AVIOContext *s, unsigned char *buf, int size)
     if (size < 0)
         return -1;
 
+    if (s->read_packet && s->write_flag) {
+        len = s->read_packet(s->opaque, buf, size);
+        if (len > 0)
+            s->pos += len;
+        return len;
+    }
+
     len = s->buf_end - s->buf_ptr;
     if (len == 0) {
         fill_buffer(s);