/*****************************************************************************
* Open
*****************************************************************************/
static int Open(vlc_object_t *p_this)
{
decoder_t *p_dec = (decoder_t*)p_this;
decoder_sys_t *p_sys;
if (p_dec->fmt_in.i_codec != VLC_CODEC_HEVC)
return VLC_EGENERIC;
p_dec->p_sys = p_sys = calloc(1, sizeof(decoder_sys_t));
if (!p_dec->p_sys)
return VLC_ENOMEM;
INITQ(pre);
INITQ(frame);
INITQ(post);
packetizer_Init(&p_dec->p_sys->packetizer,
p_hevc_startcode, sizeof(p_hevc_startcode), startcode_FindAnnexB,
p_hevc_startcode, 1, 5,
PacketizeReset, PacketizeParse, PacketizeValidate, p_dec);
/* Copy properties */
es_format_Copy(&p_dec->fmt_out, &p_dec->fmt_in);
p_dec->fmt_out.b_packetized = true;
/* Set callbacks */
const uint8_t *p_extra = p_dec->fmt_in.p_extra;
const size_t i_extra = p_dec->fmt_in.i_extra;
/* Check if we have hvcC as extradata */
if(hevc_ishvcC(p_extra, i_extra))
{
p_dec->pf_packetize = PacketizeHVC1;
/* Clear hvcC/HVC1 extra, to be replaced with AnnexB */
free(p_dec->fmt_out.p_extra);
p_dec->fmt_out.i_extra = 0;
size_t i_new_extra = 0;
p_dec->fmt_out.p_extra =
hevc_hvcC_to_AnnexB_NAL(p_extra, i_extra,
&i_new_extra, &p_sys->i_nal_length_size);
if(p_dec->fmt_out.p_extra)
p_dec->fmt_out.i_extra = i_new_extra;
}
else
{
p_dec->pf_packetize = PacketizeAnnexB;
}
p_dec->pf_flush = PacketizeFlush;
if(p_dec->fmt_out.i_extra)
{
/* Feed with AnnexB VPS/SPS/PPS/SEI extradata */
packetizer_Header(&p_sys->packetizer,
p_dec->fmt_out.p_extra, p_dec->fmt_out.i_extra);
}
return VLC_SUCCESS;
}
static block_t * OutputQueues(decoder_sys_t *p_sys, bool b_valid)
{
block_t *p_output = NULL;
block_t **pp_output_last = &p_output;
uint32_t i_flags = 0; /* Because block_ChainGather does not merge flags or times */
if(p_sys->pre.p_chain)
{
i_flags |= p_sys->pre.p_chain->i_flags;
block_ChainLastAppend(&pp_output_last, p_sys->pre.p_chain);
INITQ(pre);
}
if(p_sys->frame.p_chain)
{
i_flags |= p_sys->frame.p_chain->i_flags;
if(p_output && p_output->i_dts == 0)
{
p_output->i_dts = p_sys->frame.p_chain->i_dts;
p_output->i_pts = p_sys->frame.p_chain->i_pts;
}
block_ChainLastAppend(&pp_output_last, p_sys->frame.p_chain);
INITQ(frame);
}
if(p_sys->post.p_chain)
{
i_flags |= p_sys->post.p_chain->i_flags;
block_ChainLastAppend(&pp_output_last, p_sys->post.p_chain);
INITQ(post);
}
if(p_output)
{
p_output->i_flags |= i_flags;
if(!b_valid)
p_output->i_flags |= BLOCK_FLAG_CORRUPTED;
}
return p_output;
}
