Function copy_frame

libhb/decavcodec.c:1151–1348

copy one video frame into an HB buf. If the frame isn't in our color space or at least one of its dimensions is odd, use sws_scale to convert/rescale it. Otherwise just copy the bits.

// or at least one of its dimensions is odd, use sws_scale to convert/rescale it.
// Otherwise just copy the bits.
static hb_buffer_t *copy_frame( hb_work_private_t *pv )
{
    reordered_data_t * reordered = NULL;
    hb_buffer_t      * out;

    out = hb_avframe_to_video_buffer(pv->frame, (AVRational){1,1});

    if (pv->frame->pts != AV_NOPTS_VALUE)
    {
        reordered = reordered_hash_rem(pv, pv->frame->pts);
    }
    if (reordered != NULL)
    {
        out->s.scr_sequence   = reordered->scr_sequence;
        out->s.start          = reordered->pts;
        out->s.new_chap       = reordered->new_chap;
        pv->last_scr_sequence = reordered->scr_sequence;
        pv->last_chapter      = reordered->new_chap;
        free(reordered);
    }
    else
    {
        out->s.scr_sequence   = pv->last_scr_sequence;
        out->s.start          = AV_NOPTS_VALUE;
    }

    double  frame_dur = pv->duration;
    if (pv->frame->repeat_pict)
    {
        frame_dur += pv->frame->repeat_pict * pv->field_duration;
    }
    if (out->s.start == AV_NOPTS_VALUE)
    {
        out->s.start = pv->next_pts;
    }
    else
    {
        pv->next_pts = out->s.start;
    }
    if (pv->next_pts != (int64_t)AV_NOPTS_VALUE)
    {
        pv->next_pts += frame_dur;
        out->s.stop   = pv->next_pts;
    }
    out->s.duration  = frame_dur;

    if (out->s.new_chap > 0 && out->s.new_chap == pv->new_chap)
    {
        pv->new_chap = 0;
    }
    // It is possible that the buffer with new_chap gets dropped
    // by the decoder.  So also check if the output buffer is after
    // the new_chap in the timeline.
    if (pv->new_chap > 0 &&
        (out->s.scr_sequence > pv->chap_scr ||
         (out->s.scr_sequence == pv->chap_scr && out->s.start > pv->chap_time)))
    {
        out->s.new_chap = pv->new_chap;