hi!
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:
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!
Statistics: Posted by eylonc — 23 Jul 2024 15:25