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authorMark Thompson <sw@jkqxz.net>2017-03-04 23:57:38 +0000
committerMark Thompson <sw@jkqxz.net>2017-06-14 22:27:07 +0100
commit7ce47090ce36fbe72f807d1e35fea3a699adad17 (patch)
tree0c68525328b3904307c35e09b1533d40825edb18 /ffmpeg_filter.c
parent38820631746f86a2252c71ed4a588eb679dd9f40 (diff)
downloadffmpeg-7ce47090ce36fbe72f807d1e35fea3a699adad17.tar.gz
ffmpeg: Support setting the hardware device to use when filtering
This only supports one device globally, but more can be used by passing them with input streams in hw_frames_ctx or by deriving new devices inside a filter graph with hwmap. (cherry picked from commit e669db76108de8d7a36c2274c99da82cc94d1dd1)
Diffstat (limited to 'ffmpeg_filter.c')
-rw-r--r--ffmpeg_filter.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/ffmpeg_filter.c b/ffmpeg_filter.c
index 817f48f473..aacc185059 100644
--- a/ffmpeg_filter.c
+++ b/ffmpeg_filter.c
@@ -1046,9 +1046,15 @@ int configure_filtergraph(FilterGraph *fg)
if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
goto fail;
- if (hw_device_ctx) {
+ if (filter_hw_device || hw_device_ctx) {
+ AVBufferRef *device = filter_hw_device ? filter_hw_device->device_ref
+ : hw_device_ctx;
for (i = 0; i < fg->graph->nb_filters; i++) {
- fg->graph->filters[i]->hw_device_ctx = av_buffer_ref(hw_device_ctx);
+ fg->graph->filters[i]->hw_device_ctx = av_buffer_ref(device);
+ if (!fg->graph->filters[i]->hw_device_ctx) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
}
}