[FFmpeg-devel] [PATCH 08/12] Added standard headers

[Traian Coza <traian.coza@gmail.com>]

---
 libavcodec/text_to_bitmap.c | 47 ++++++++++++++++++++++++++++++++++++-
 libavcodec/text_to_bitmap.h | 25 +++++++++++++++++---
 2 files changed, 68 insertions(+), 4 deletions(-)

diff --git a/libavcodec/text_to_bitmap.c b/libavcodec/text_to_bitmap.c
index c419e89c20..52d161d7b1 100644
--- a/libavcodec/text_to_bitmap.c
+++ b/libavcodec/text_to_bitmap.c
@@ -1,4 +1,23 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
 /**
+ * @file
  * text to bitmap support code.
  *
  * This file contains a function to initiate the functionality for a stream,
@@ -11,6 +30,9 @@
 #include "avcodec.h"
 #include "ass_split.h"
 
+/**
+ * Holds the objects used by the rendering function so they don't have to be reinitialized every time
+ */
 struct ASS_Context {
     ASS_Library *library;
     ASS_Renderer *renderer;
@@ -18,6 +40,17 @@ struct ASS_Context {
     ASSSplitContext *ass_split_context;
 };
 
+/**
+ * Initiates the ASS_Context structure and adds it to the input stream decoder context.
+ * Does nothing if ist->dec_ctx->ass_context is already set.
+ * It needs all these arguments because it searches for a frame size in all the streams
+ * @param input_streams
+ * @param output_streams
+ * @param nb_input_streams
+ * @param nb_output_streams
+ * @param ist_i index of input stream for transcoding
+ * @param ost_i index of output stream for transcoding
+ */
 void init_ass_context(
         InputStream **input_streams,
         OutputStream **output_streams,
@@ -82,12 +115,17 @@ void init_ass_context(
     ass_set_shaper(context->renderer, 0);
     ass_set_fonts(context->renderer, NULL, NULL, 1, NULL, 1);
 
-    context->track = ass_read_memory(context->library, (char *)ist->dec_ctx->subtitle_header, ist->dec_ctx->subtitle_header_size, NULL);
+    context->track = ass_read_memory(context->library,
+        (char *)ist->dec_ctx->subtitle_header, ist->dec_ctx->subtitle_header_size, NULL);
     context->ass_split_context = ff_ass_split((char *)ist->dec_ctx->subtitle_header);
 
     ist->dec_ctx->ass_context = context;
 }
 
+/**
+ * Frees what was allocated in init_ass_context
+ * @param context
+ */
 void free_ass_context(ASS_Context *context) {
     ass_library_done(context->library);
     ass_renderer_done(context->renderer);
@@ -104,6 +142,11 @@ void free_ass_context(ASS_Context *context) {
 
 #define ALPHA_THRESHOLD 0b10000000
 
+/**
+ * Renders the AVSubtitle and sets the bitmap data for each AVSubtitleRect
+ * @param context
+ * @param sub
+ */
 void render_avsub_ass(ASS_Context *context, AVSubtitle *sub)
 {
     for (int r = 0; r < sub->num_rects; r++)
@@ -180,6 +223,7 @@ void render_avsub_ass(ASS_Context *context, AVSubtitle *sub)
     }
 }
 
+/*
 static void print_ass_image(const ASS_Image *image)
 {
     int index = 0;
@@ -234,3 +278,4 @@ static void print_subtitle(AVSubtitle sub)
     }
     printf("\n");
 }
+*/
\ No newline at end of file
diff --git a/libavcodec/text_to_bitmap.h b/libavcodec/text_to_bitmap.h
index 0c4689b039..29037150c2 100644
--- a/libavcodec/text_to_bitmap.h
+++ b/libavcodec/text_to_bitmap.h
@@ -1,9 +1,28 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
 /**
+ * @file
  * text_to_bitmap header file
  */
 
-#ifndef FFMPEG_TEXT_TO_BITMAP_H
-#define FFMPEG_TEXT_TO_BITMAP_H
+#ifndef AVCODEC_TEXT_TO_BITMAP_H
+#define AVCODEC_TEXT_TO_BITMAP_H
 
 #include <ass/ass.h>
 #include "fftools/ffmpeg.h"
@@ -21,4 +40,4 @@ void init_ass_context(
 void render_avsub_ass(ASS_Context *, AVSubtitle *);
 void free_ass_context(ASS_Context *context);
 
-#endif //FFMPEG_TEXT_TO_BITMAP_H
+#endif //AVCODEC_TEXT_TO_BITMAP_H
-- 
2.34.1

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