Upstream version 9.38.198.0

[platform/framework/web/crosswalk.git] / src / third_party / ffmpeg / libavdevice / lavfi.c

diff --git a/src/third_party/ffmpeg/libavdevice/lavfi.c b/src/third_party/ffmpeg/libavdevice/lavfi.c
index a177ad0..f1c88ac 100644 (file)
--- a/src/third_party/ffmpeg/libavdevice/lavfi.c
+++ b/src/third_party/ffmpeg/libavdevice/lavfi.c
@@ -115,23 +115,23 @@ av_cold static int lavfi_read_header(AVFormatContext *avctx)
     }
 
     if (lavfi->graph_filename) {
-        uint8_t *file_buf, *graph_buf;
-        size_t file_bufsize;
-        ret = av_file_map(lavfi->graph_filename,
-                          &file_buf, &file_bufsize, 0, avctx);
+        AVBPrint graph_file_pb;
+        AVIOContext *avio = NULL;
+        ret = avio_open(&avio, lavfi->graph_filename, AVIO_FLAG_READ);
         if (ret < 0)
-            goto end;
-
-        /* create a 0-terminated string based on the read file */
-        graph_buf = av_malloc(file_bufsize + 1);
-        if (!graph_buf) {
-            av_file_unmap(file_buf, file_bufsize);
-            FAIL(AVERROR(ENOMEM));
+            FAIL(ret);
+        av_bprint_init(&graph_file_pb, 0, AV_BPRINT_SIZE_UNLIMITED);
+        ret = avio_read_to_bprint(avio, &graph_file_pb, INT_MAX);
+        avio_close(avio);
+        av_bprint_chars(&graph_file_pb, '\0', 1);
+        if (!ret && !av_bprint_is_complete(&graph_file_pb))
+            ret = AVERROR(ENOMEM);
+        if (ret) {
+            av_bprint_finalize(&graph_file_pb, NULL);
+            FAIL(ret);
         }
-        memcpy(graph_buf, file_buf, file_bufsize);
-        graph_buf[file_bufsize] = 0;
-        av_file_unmap(file_buf, file_bufsize);
-        lavfi->graph_str = graph_buf;
+        if ((ret = av_bprint_finalize(&graph_file_pb, &lavfi->graph_str)))
+            FAIL(ret);
     }
 
     if (!lavfi->graph_str)
@@ -211,7 +211,7 @@ av_cold static int lavfi_read_header(AVFormatContext *avctx)
     }
 
     /* create a sink for each output and connect them to the graph */
-    lavfi->sinks = av_malloc(sizeof(AVFilterContext *) * avctx->nb_streams);
+    lavfi->sinks = av_malloc_array(avctx->nb_streams, sizeof(AVFilterContext *));
     if (!lavfi->sinks)
         FAIL(AVERROR(ENOMEM));
 
@@ -425,6 +425,7 @@ static const AVClass lavfi_class = {
     .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
+    .category   = AV_CLASS_CATEGORY_DEVICE_INPUT,
 };
 
 AVInputFormat ff_lavfi_demuxer = {