lavc/lavf: remove unnecessary symbols from the symbol version script.

[ffmpeg] / libavcodec / flashsvenc.c

diff --git a/libavcodec/flashsvenc.c b/libavcodec/flashsvenc.c
index 2802c69b3c796d63107da551f3ff838da6fae2dc..669badc6ceb5a5a46f100ec54f8a0a6dfd731033 100644 (file)
--- a/libavcodec/flashsvenc.c
+++ b/libavcodec/flashsvenc.c
@@ -27,22 +27,13 @@
  * Flash Screen Video encoder
  * @author Alex Beregszaszi
  * @author Benjamin Larsson
+ *
+ * A description of the bitstream format for Flash Screen Video version 1/2
+ * is part of the SWF File Format Specification (version 10), which can be
+ * downloaded from http://www.adobe.com/devnet/swf.html.
  */
 
-/* Bitstream description
- * The picture is divided into blocks that are zlib-compressed.
- *
- * The decoder is fed complete frames, the frameheader contains:
- *  4 bits of block width
- * 12 bits of frame width
- *  4 bits of block height
- * 12 bits of frame height
- *
- * Directly after the header are the compressed blocks. The blocks
- * have their compressed size represented with 16 bits in the beginning.
- * If the size = 0 then the block is unchanged from the previous frame.
- * All blocks are decompressed until the buffer is consumed.
- *
+/*
  * Encoding ideas: A basic encoder would just use a fixed block size.
  * Block sizes can be multiples of 16, from 16 to 256. The blocks don't
  * have to be quadratic. A brute force search with a set of different
@@ -185,7 +176,7 @@ static int encode_bitstream(FlashSVContext *s, AVFrame *p, uint8_t *buf,
 
                 bytestream_put_be16(&ptr, zsize);
                 buf_pos += zsize + 2;
-                av_dlog(avctx, "buf_pos = %d\n", buf_pos);
+                av_dlog(s->avctx, "buf_pos = %d\n", buf_pos);
             } else {
                 pred_blocks++;
                 bytestream_put_be16(&ptr, 0);
@@ -295,4 +286,3 @@ AVCodec ff_flashsv_encoder = {
     .pix_fmts       = (const enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_NONE},
     .long_name      = NULL_IF_CONFIG_SMALL("Flash Screen Video"),
 };
-