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avcodec/ffv1enc: Don't create and keep unnecessary reference 

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-08-14 13:37:56 +02:00
parent f76cef5c51
commit 7e9a790441
2 changed files with 7 additions and 9 deletions
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1
libavcodec/ffv1.h
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@ -91,6 +91,7 @@ typedef struct FFV1Context {
struct FFV1Context *fsrc;
AVFrame *cur;
const AVFrame *cur_enc_frame;
int plane_count;
int ac; ///< 1=range coder <-> 0=golomb rice
int ac_byte_count; ///< number of bytes used for AC coding

15
libavcodec/ffv1enc.c
View File

@ -916,12 +916,12 @@ static void encode_slice_header(FFV1Context *f, FFV1Context *fs)
put_symbol(c, state, f->plane[j].quant_table_index, 0);
av_assert0(f->plane[j].quant_table_index == f->context_model);
}
if (!f->picture.f->interlaced_frame)
if (!f->cur_enc_frame->interlaced_frame)
put_symbol(c, state, 3, 0);
else
put_symbol(c, state, 1 + !f->picture.f->top_field_first, 0);
put_symbol(c, state, f->picture.f->sample_aspect_ratio.num, 0);
put_symbol(c, state, f->picture.f->sample_aspect_ratio.den, 0);
put_symbol(c, state, 1 + !f->cur_enc_frame->top_field_first, 0);
put_symbol(c, state, f->cur_enc_frame->sample_aspect_ratio.num, 0);
put_symbol(c, state, f->cur_enc_frame->sample_aspect_ratio.den, 0);
if (f->version > 3) {
put_rac(c, state, fs->slice_coding_mode == 1);
if (fs->slice_coding_mode == 1)
@ -1024,7 +1024,7 @@ static int encode_slice(AVCodecContext *c, void *arg)
int height = fs->slice_height;
int x = fs->slice_x;
int y = fs->slice_y;
const AVFrame *const p = f->picture.f;
const AVFrame *const p = f->cur_enc_frame;
const int ps = av_pix_fmt_desc_get(c->pix_fmt)->comp[0].step;
int ret;
RangeCoder c_bak = fs->c;
@ -1098,7 +1098,6 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
{
FFV1Context *f = avctx->priv_data;
RangeCoder *const c = &f->slice_context[0]->c;
AVFrame *const p = f->picture.f;
uint8_t keystate = 128;
uint8_t *buf_p;
int i, ret;
@ -1165,9 +1164,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
ff_init_range_encoder(c, pkt->data, pkt->size);
ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8);
av_frame_unref(p);
if ((ret = av_frame_ref(p, pict)) < 0)
return ret;
f->cur_enc_frame = pict;
if (avctx->gop_size == 0 || f->picture_number % avctx->gop_size == 0) {
put_rac(c, &keystate, 1);