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GitOrigin-RevId: 72933af9ce469acd89cbf41898dcc06c65df7c8a
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MediaPipe Team 2020-01-11 11:08:37 -08:00 committed by jqtang
parent a2823541e6
commit bf5185f122
3 changed files with 16 additions and 8 deletions
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8
mediapipe/docs/autoflip.md
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@ -24,13 +24,11 @@ bazel build -c opt --define MEDIAPIPE_DISABLE_GPU=1 mediapipe/examples/desktop/a
```bash ```bash
GLOG_logtostderr=1 bazel-bin/mediapipe/examples/desktop/autoflip/run_autoflip \ GLOG_logtostderr=1 bazel-bin/mediapipe/examples/desktop/autoflip/run_autoflip \
--calculator_graph_config_file=mediapipe/examples/desktop/autoflip/autoflip_graph.pbtxt \ --calculator_graph_config_file=mediapipe/examples/desktop/autoflip/autoflip_graph.pbtxt \
--input_side_packets=input_video_path=/absolute/path/to/the/local/video/file,\ --input_side_packets=input_video_path=/absolute/path/to/the/local/video/file,output_video_path=/absolute/path/to/save/the/output/video/file,aspect_ratio=1:1
output_video_path=/absolute/path/to/save/the/output/video/file,\
aspect_ratio=9:16
``` ```
Use the `aspect_ratio` flag to provide the output aspect ratio. The format Use the `aspect_ratio` flag to provide the output aspect ratio. The format
should be `weight:height`, where the `weight` and `height` are two positive should be `width:height`, where the `width` and `height` are two positive
integers. AutoFlip supports both landscape-to-portrait and portrait-to-landscape integers. AutoFlip supports both landscape-to-portrait and portrait-to-landscape
conversions. The pipeline internally compares the target aspect ratio against conversions. The pipeline internally compares the target aspect ratio against
the original one, and determines the correct conversion automatically. the original one, and determines the correct conversion automatically.
@ -278,7 +276,7 @@ the required features cannot be all covered (for example, when they are too
spread out in the video), AutoFlip will apply a padding effect to cover as much spread out in the video), AutoFlip will apply a padding effect to cover as much
salient content as possible. See an illustration below. salient content as possible. See an illustration below.
![graph is_required](images/autoflip_is_required.gif){width="600"} ![graph is_required](images/autoflip_is_required.gif)
### Stable vs Tracking Camera Motion ### Stable vs Tracking Camera Motion

4
mediapipe/examples/desktop/autoflip/README.md
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@ -17,9 +17,7 @@
GLOG_logtostderr=1 bazel-bin/mediapipe/examples/desktop/autoflip/run_autoflip \ GLOG_logtostderr=1 bazel-bin/mediapipe/examples/desktop/autoflip/run_autoflip \
--calculator_graph_config_file=mediapipe/examples/desktop/autoflip/autoflip_graph.pbtxt \ --calculator_graph_config_file=mediapipe/examples/desktop/autoflip/autoflip_graph.pbtxt \
--input_side_packets=input_video_path=/absolute/path/to/the/local/video/file,\ --input_side_packets=input_video_path=/absolute/path/to/the/local/video/file,output_video_path=/absolute/path/to/save/the/output/video/file,aspect_ratio=width:height
output_video_path=/absolute/path/to/save/the/output/video/file,\
aspect_ratio=width:height
``` ```
3. View the cropped video. 3. View the cropped video.

12
mediapipe/util/sequence/media_sequence.cc
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@ -217,6 +217,18 @@ float TimestampsToRate(int64 first_timestamp, int64 second_timestamp) {
sequence); sequence);
} }
} }
if (GetPointSize(prefix, *sequence) > 0) {
std::string x_key = merge_prefix(prefix, kRegionPointXKey);
auto* region_feature_list = MutableFeatureList(x_key, sequence);
RET_CHECK_EQ(num_bboxes, region_feature_list->feature_size())
<< "Expected number of BBox timestamps and boxes to match.";
ClearBBoxNumRegions(prefix, sequence);
for (int i = 0; i < num_bboxes; ++i) {
AddBBoxNumRegions(
prefix, region_feature_list->feature(i).float_list().value_size(),
sequence);
}
}
// Collect which timestamps currently match to which indices in timestamps. // Collect which timestamps currently match to which indices in timestamps.
// skip empty timestamps. // skip empty timestamps.
// Requires sorted indices. // Requires sorted indices.