im new to developing to VLC.
currently, im working on a project that as a part of it, I need to be able to overwrite the subtitles that are about to be displayed, both when online streaming and playing an offline file.
after going through the source code i understood that the relevant file will be 'modules\codec\subsdec.c'. and the relevant methods are 'DecodeBlock' and 'ParseText'.
this is how i tried modifying the 'DecodeBlock' method but unfortunately it doesn't work. im unable to access the variable/field that actually holds the text in order to change it.
Code: Select all
static int DecodeBlock( decoder_t *p_dec, block_t *p_block )
{
subpicture_t *p_spu;
if( p_block == NULL ) /* No Drain */
return VLCDEC_SUCCESS;
if( p_block->i_flags & BLOCK_FLAG_CORRUPTED )
{
block_Release( p_block );
return VLCDEC_SUCCESS;
}
//original
//p_spu = ParseText( p_dec, p_block );
//block_Release( p_block );
//if( p_spu != NULL )
// decoder_QueueSub( p_dec, p_spu );
//return VLCDEC_SUCCESS;
//edited
// Overwrite subtitle text with "hi"
if (p_spu != NULL)
{
// Assuming p_spu->p_region is the region containing the subtitle text
if (p_spu->p_region != NULL && p_spu->p_region->p_text != NULL)
{
// Free the existing text
free(p_spu->p_region->p_text);
// Allocate new text and set it to "hi"
p_spu->p_region->p_text = strdup("hi");
}
decoder_QueueSub(p_dec, p_spu);
}
block_Release(p_block);
return VLCDEC_SUCCESS;
}I'll be happy to hear any suggestions on how to go on with that issue and get the aimed result.
Thanks!