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feat(Transcoder): update captions code samples for display name and l… (
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#292)

* feat(Transcoder): update captions code samples for display name and language

* test bucket should be deleted

* Trigger Build
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@irataxy @parthea
irataxy authored and parthea committed Jun 8, 2023
1 parent 5d1852f commit fbf89e5
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Showing 3 changed files with 75 additions and 27 deletions.
12 changes: 5 additions & 7 deletions video/transcoder/create_job_with_embedded_captions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ def create_job_with_embedded_captions(
input_captions_uri,
output_uri,
):
"""Creates a job based on an ad-hoc job configuration that embeds captions in the output video.
"""Creates a job based on an ad-hoc job configuration that embeds closed captions in the output video.
Args:
project_id (str): The GCP project ID.
Expand Down Expand Up @@ -87,7 +87,8 @@ def create_job_with_embedded_captions(
transcoder_v1.types.ElementaryStream(
key="audio-stream0",
audio_stream=transcoder_v1.types.AudioStream(
codec="aac", bitrate_bps=64000
codec="aac",
bitrate_bps=64000,
),
),
transcoder_v1.types.ElementaryStream(
Expand All @@ -101,15 +102,12 @@ def create_job_with_embedded_captions(
input_track=0,
),
],
language_code="en-US",
display_name="English",
),
),
],
mux_streams=[
transcoder_v1.types.MuxStream(
key="sd",
container="mp4",
elementary_streams=["video-stream0", "audio-stream0"],
),
transcoder_v1.types.MuxStream(
key="sd-hls",
container="ts",
Expand Down
81 changes: 63 additions & 18 deletions video/transcoder/create_job_with_standalone_captions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14,11 +14,11 @@
# See the License for the specific language governing permissions and
# limitations under the License.

"""Google Cloud Transcoder sample for creating a job that can use captions from a standalone file.
"""Google Cloud Transcoder sample for creating a job that can use subtitles from a standalone file.
Example usage:
python create_job_with_standalone_captions.py --project_id <project-id> --location <location> \
--input_video_uri <uri> --input_captions_uri <uri> --output_uri <uri>
--input_video_uri <uri> --input_subtitles1_uri <uri> --input_subtitles2_uri <uri> --output_uri <uri>
"""

# [START transcoder_create_job_with_standalone_captions]
Expand All @@ -36,17 +36,20 @@ def create_job_with_standalone_captions(
project_id,
location,
input_video_uri,
input_captions_uri,
input_subtitles1_uri,
input_subtitles2_uri,
output_uri,
):
"""Creates a job based on an ad-hoc job configuration that can use captions from a standalone file.
"""Creates a job based on an ad-hoc job configuration that can use subtitles from a standalone file.
Args:
project_id (str): The GCP project ID.
location (str): The location to start the job in.
input_video_uri (str): Uri of the input video in the Cloud Storage
bucket.
input_captions_uri (str): Uri of the input captions file in the Cloud
input_subtitles1_uri (str): Uri of an input subtitles file in the Cloud
Storage bucket.
input_subtitles2_uri (str): Uri of an input subtitles file in the Cloud
Storage bucket.
output_uri (str): Uri of the video output folder in the Cloud Storage
bucket."""
Expand All @@ -63,14 +66,18 @@ def create_job_with_standalone_captions(
uri=input_video_uri,
),
transcoder_v1.types.Input(
key="caption-input0",
uri=input_captions_uri,
key="subtitle-input-en",
uri=input_subtitles1_uri,
),
transcoder_v1.types.Input(
key="subtitle-input-es",
uri=input_subtitles2_uri,
),
],
edit_list=[
transcoder_v1.types.EditAtom(
key="atom0",
inputs=["input0", "caption-input0"],
inputs=["input0", "subtitle-input-en", "subtitle-input-es"],
),
],
elementary_streams=[
Expand All @@ -88,18 +95,34 @@ def create_job_with_standalone_captions(
transcoder_v1.types.ElementaryStream(
key="audio-stream0",
audio_stream=transcoder_v1.types.AudioStream(
codec="aac", bitrate_bps=64000
codec="aac",
bitrate_bps=64000,
),
),
transcoder_v1.types.ElementaryStream(
key="vtt-stream-en",
text_stream=transcoder_v1.types.TextStream(
codec="webvtt",
language_code="en-US",
display_name="English",
mapping_=[
transcoder_v1.types.TextStream.TextMapping(
atom_key="atom0",
input_key="subtitle-input-en",
),
],
),
),
transcoder_v1.types.ElementaryStream(
key="vtt-stream0",
key="vtt-stream-es",
text_stream=transcoder_v1.types.TextStream(
codec="webvtt",
language_code="es-ES",
display_name="Spanish",
mapping_=[
transcoder_v1.types.TextStream.TextMapping(
atom_key="atom0",
input_key="caption-input0",
input_track=0,
input_key="subtitle-input-es",
),
],
),
Expand All @@ -117,9 +140,20 @@ def create_job_with_standalone_captions(
elementary_streams=["audio-stream0"],
),
transcoder_v1.types.MuxStream(
key="text-vtt",
key="text-vtt-en",
container="vtt",
elementary_streams=["vtt-stream0"],
elementary_streams=["vtt-stream-en"],
segment_settings=transcoder_v1.types.SegmentSettings(
segment_duration=duration.Duration(
seconds=6,
),
individual_segments=True,
),
),
transcoder_v1.types.MuxStream(
key="text-vtt-es",
container="vtt",
elementary_streams=["vtt-stream-es"],
segment_settings=transcoder_v1.types.SegmentSettings(
segment_duration=duration.Duration(
seconds=6,
Expand All @@ -132,7 +166,12 @@ def create_job_with_standalone_captions(
transcoder_v1.types.Manifest(
file_name="manifest.m3u8",
type_="HLS",
mux_streams=["sd-hls-fmp4", "audio-hls-fmp4", "text-vtt"],
mux_streams=[
"sd-hls-fmp4",
"audio-hls-fmp4",
"text-vtt-en",
"text-vtt-es",
],
),
],
)
Expand All @@ -157,8 +196,13 @@ def create_job_with_standalone_captions(
required=True,
)
parser.add_argument(
"--input_captions_uri",
help="Uri of the input captions file in the Cloud Storage bucket.",
"--input_subtitles1_uri",
help="Uri of an input subtitles file in the Cloud Storage bucket.",
required=True,
)
parser.add_argument(
"--input_subtitles2_uri",
help="Uri of an input subtitles file in the Cloud Storage bucket.",
required=True,
)
parser.add_argument(
Expand All @@ -172,6 +216,7 @@ def create_job_with_standalone_captions(
args.project_id,
args.location,
args.input_video_uri,
args.input_captions_uri,
args.input_subtitles1_uri,
args.input_subtitles2_uri,
args.output_uri,
)
9 changes: 7 additions & 2 deletions video/transcoder/job_test.py
View file
Original file line number Diff line number Diff line change
Expand Up @@ -49,13 +49,17 @@
test_overlay_image_file_name = "overlay.jpg"
test_concat1_file_name = "ForBiggerEscapes.mp4"
test_concat2_file_name = "ForBiggerJoyrides.mp4"
test_captions_file_name = "caption.srt"
test_captions_file_name = "captions.srt"
test_subtitles1_file_name = "subtitles-en.srt"
test_subtitles2_file_name = "subtitles-es.srt"

input_uri = f"gs://{input_bucket_name}{test_video_file_name}"
overlay_image_uri = f"gs://{input_bucket_name}{test_overlay_image_file_name}"
concat1_uri = f"gs://{input_bucket_name}{test_concat1_file_name}"
concat2_uri = f"gs://{input_bucket_name}{test_concat2_file_name}"
captions_uri = f"gs://{input_bucket_name}{test_captions_file_name}"
subtitles1_uri = f"gs://{input_bucket_name}{test_subtitles1_file_name}"
subtitles2_uri = f"gs://{input_bucket_name}{test_subtitles2_file_name}"
output_uri_for_preset = f"gs://{output_bucket_name}/test-output-preset/"
output_uri_for_template = f"gs://{output_bucket_name}/test-output-template/"
output_uri_for_adhoc = f"gs://{output_bucket_name}/test-output-adhoc/"
Expand Down Expand Up @@ -452,7 +456,8 @@ def test_create_job_with_standalone_captions(capsys, test_bucket):
project_id,
location,
input_uri,
captions_uri,
subtitles1_uri,
subtitles2_uri,
output_uri_for_standalone_captions,
)
out, _ = capsys.readouterr()
Expand Down

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