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segment_base.go
68 lines (66 loc) · 1.59 KB
/
segment_base.go
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package rosso
import (
"154.pages.dev/encoding/dash"
"154.pages.dev/log"
"encoding/hex"
"fmt"
"log/slog"
"net/http"
"os"
)
func (h HttpStream) segment_base(
ext, base_URL string, point dash.Pointer,
) error {
key, err := h.key(point)
if err != nil {
return err
}
slog.Debug("hex", "key", hex.EncodeToString(key))
sb := point.Representation.SegmentBase
// Initialization
req, err := http.NewRequest("GET", base_URL, nil)
if err != nil {
return err
}
req.Header.Set("Range", "bytes=" + string(sb.Initialization.Range))
res, err := http.DefaultClient.Do(req)
if err != nil {
return err
}
defer res.Body.Close()
file, err := os.Create(Name(h.Name) + ext)
if err != nil {
return err
}
defer file.Close()
if err := encode_init(file, res.Body); err != nil {
return err
}
byte_ranges, err := encode_sidx(base_URL, sb.IndexRange)
if err != nil {
return err
}
var meter log.ProgressMeter
meter.Set(len(byte_ranges))
log.TransportDebug()
defer log.TransportInfo()
for _, r := range byte_ranges {
err := func() error {
req, err := http.NewRequest("GET", base_URL, nil)
if err != nil {
return err
}
req.Header.Set("Range", fmt.Sprintf("bytes=%v-%v", r[0], r[1]))
res, err := http.DefaultClient.Do(req)
if err != nil {
return err
}
defer res.Body.Close()
return encode_segment(file, meter.Reader(res), key)
}()
if err != nil {
return err
}
}
return nil
}