How to extract all audio files in a pdf file?

[nissansz]

How to extract all audio files in a pdf file?

[JorjMcKie]

See https://pymupdf.readthedocs.io/en/latest/annot.html#Annot.get_sound

[nissansz]

I want to change the playback speed to 0.5 x ? Any method?
Now, I use Document on ipad to play audio, want to play a little slower. How to realize it?

[JorjMcKie]

No support for this.

[nissansz]

How to update audio file with the edited audio file?

[nissansz]

How to update audio file with the edited audio file?

[JorjMcKie]

No support for updating sound annotations.

[nissansz]

there is an error with below code. xref = int(xref[:-4]) # xref of video stream file
ValueError: invalid literal for int() with base 10: '362 0 R367'

import sys
import pathlib
import fitz

path = r'C:\a.pdf'
doc = fitz.open(path)  # open PDF
page = doc[0]   # load desired page (0-based)
annot = page.first_annot  # access the desired annot (first one in example)
if annot.type[0] != fitz.PDF_ANNOT_RICH_MEDIA:
    print(f"Annotation type is {annot.type[1]}")
    print("Only support RichMedia currently")
    sys.exit()
cont = doc.xref_get_key(annot.xref, "RichMediaContent/Assets/Names")
if cont[0] != "array":  # should be PDF array
    sys.exit("unexpected: RichMediaContent/Assets/Names is no array")
array = cont[1][1:-1]  # remove array delimiters

# jump over the name / title: we will get it later
if array[0] == "(":
    i = array.find(")")
else:
    i = array.find(">")
xref = array[i + 1 :]  # here is the xref of the actual video stream
if not xref.endswith(" 0 R"):
    sys.exit("media contents array has more than one entry")

xref = int(xref[:-4])  # xref of video stream file
video_filename = doc.xref_get_key(xref, "F")[1]
video_xref = doc.xref_get_key(xref, "EF/F")[1]
video_xref = int(video_xref.split()[0])
video_stream = doc.xref_stream_raw(video_xref)
pathlib.Path(video_filename).write_bytes(video_stream)

[nissansz]

anno type == 20