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Merge "translate: generic plc not filled in after translation"

This commit is contained in:
Jenkins2 2018-04-30 08:33:09 -05:00 committed by Gerrit Code Review
parent 5dd6fe478c ff652711c7
commit 8e368d0eaf
2 changed files with 39 additions and 0 deletions
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6
formats/format_sln.c
View File

@ -54,6 +54,12 @@ static struct ast_frame *generic_read(struct ast_filestream *s, int *whennext, u
static int slinear_write(struct ast_filestream *fs, struct ast_frame *f)
{
int res;
/* Don't try to write an interpolated frame */
if (f->datalen == 0) {
return 0;
}
if ((res = fwrite(f->data.ptr, 1, f->datalen, fs->f)) != f->datalen) {
ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n", res, f->datalen, strerror(errno));
return -1;

33
main/translate.c
View File

@ -524,6 +524,34 @@ struct ast_trans_pvt *ast_translator_build_path(struct ast_format *dst, struct a
return head;
}
static struct ast_frame *generate_interpolated_slin(struct ast_trans_pvt *p, struct ast_frame *f)
{
struct ast_frame res = { AST_FRAME_VOICE };
/*
* If we've gotten here then we should have an interpolated frame that was not handled
* by the translation codec. So create an interpolated frame in the appropriate format
* that was going to be written. This frame might be handled later by other resources.
* For instance, generic plc.
*
* Note, generic plc is currently only available for the format type 'slin' (8KHz only -
* The generic plc code appears to have been based around that). Generic plc is filled
* in later on frame write.
*/
if (!ast_opt_generic_plc || f->datalen != 0 ||
ast_format_cmp(p->explicit_dst, ast_format_slin) == AST_FORMAT_CMP_NOT_EQUAL) {
return NULL;
}
res.subclass.format = ast_format_cache_get_slin_by_rate(8000); /* ref bumped on dup */
res.samples = f->samples;
res.datalen = 0;
res.data.ptr = NULL;
res.offset = AST_FRIENDLY_OFFSET;
return ast_frdup(&res);
}
/*! \brief do the actual translation */
struct ast_frame *ast_translate(struct ast_trans_pvt *path, struct ast_frame *f, int consume)
{
@ -586,6 +614,11 @@ struct ast_frame *ast_translate(struct ast_trans_pvt *path, struct ast_frame *f,
}
out = p->t->frameout(p);
}
if (!out) {
out = generate_interpolated_slin(path, f);
}
if (out) {
/* we have a frame, play with times */
if (!ast_tvzero(delivery)) {