mirror of https://git.ffmpeg.org/ffmpeg.git
avcodec/dnxhdenc: Move PutBitContext from ctx to stack
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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542abee213
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@ -559,7 +559,7 @@ static int dnxhd_write_header(AVCodecContext *avctx, uint8_t *buf)
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return 0;
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}
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static av_always_inline void dnxhd_encode_dc(DNXHDEncContext *ctx, int diff)
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static av_always_inline void dnxhd_encode_dc(PutBitContext *pb, DNXHDEncContext *ctx, int diff)
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{
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int nbits;
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if (diff < 0) {
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@ -568,19 +568,19 @@ static av_always_inline void dnxhd_encode_dc(DNXHDEncContext *ctx, int diff)
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} else {
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nbits = av_log2_16bit(2 * diff);
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}
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put_bits(&ctx->m.pb, ctx->cid_table->dc_bits[nbits] + nbits,
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put_bits(pb, ctx->cid_table->dc_bits[nbits] + nbits,
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(ctx->cid_table->dc_codes[nbits] << nbits) +
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av_mod_uintp2(diff, nbits));
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}
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static av_always_inline
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void dnxhd_encode_block(DNXHDEncContext *ctx, int16_t *block,
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int last_index, int n)
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void dnxhd_encode_block(PutBitContext *pb, DNXHDEncContext *ctx,
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int16_t *block, int last_index, int n)
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{
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int last_non_zero = 0;
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int slevel, i, j;
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dnxhd_encode_dc(ctx, block[0] - ctx->m.last_dc[n]);
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dnxhd_encode_dc(pb, ctx, block[0] - ctx->m.last_dc[n]);
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ctx->m.last_dc[n] = block[0];
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for (i = 1; i <= last_index; i++) {
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@ -589,14 +589,14 @@ void dnxhd_encode_block(DNXHDEncContext *ctx, int16_t *block,
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if (slevel) {
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int run_level = i - last_non_zero - 1;
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int rlevel = slevel * (1 << 1) | !!run_level;
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put_bits(&ctx->m.pb, ctx->vlc_bits[rlevel], ctx->vlc_codes[rlevel]);
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put_bits(pb, ctx->vlc_bits[rlevel], ctx->vlc_codes[rlevel]);
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if (run_level)
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put_bits(&ctx->m.pb, ctx->run_bits[run_level],
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put_bits(pb, ctx->run_bits[run_level],
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ctx->run_codes[run_level]);
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last_non_zero = i;
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}
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}
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put_bits(&ctx->m.pb, ctx->vlc_bits[0], ctx->vlc_codes[0]); // EOB
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put_bits(pb, ctx->vlc_bits[0], ctx->vlc_codes[0]); // EOB
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}
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static av_always_inline
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@ -879,9 +879,10 @@ static int dnxhd_encode_thread(AVCodecContext *avctx, void *arg,
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int jobnr, int threadnr)
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{
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DNXHDEncContext *ctx = avctx->priv_data;
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PutBitContext pb0, *const pb = &pb0;
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int mb_y = jobnr, mb_x;
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ctx = ctx->thread[threadnr];
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init_put_bits(&ctx->m.pb, (uint8_t *)arg + ctx->data_offset + ctx->slice_offs[jobnr],
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init_put_bits(pb, (uint8_t *)arg + ctx->data_offset + ctx->slice_offs[jobnr],
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ctx->slice_size[jobnr]);
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ctx->m.last_dc[0] =
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@ -892,8 +893,8 @@ static int dnxhd_encode_thread(AVCodecContext *avctx, void *arg,
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int qscale = ctx->mb_qscale[mb];
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int i;
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put_bits(&ctx->m.pb, 11, qscale);
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put_bits(&ctx->m.pb, 1, avctx->pix_fmt == AV_PIX_FMT_YUV444P10);
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put_bits(pb, 11, qscale);
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put_bits(pb, 1, avctx->pix_fmt == AV_PIX_FMT_YUV444P10);
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dnxhd_get_blocks(ctx, mb_x, mb_y);
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@ -904,13 +905,13 @@ static int dnxhd_encode_thread(AVCodecContext *avctx, void *arg,
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ctx->is_444 ? (((i >> 1) % 3) < 1 ? 0 : 4): 4 & (2*i),
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qscale, &overflow);
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dnxhd_encode_block(ctx, block, last_index, n);
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dnxhd_encode_block(pb, ctx, block, last_index, n);
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}
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}
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if (put_bits_count(&ctx->m.pb) & 31)
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put_bits(&ctx->m.pb, 32 - (put_bits_count(&ctx->m.pb) & 31), 0);
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flush_put_bits(&ctx->m.pb);
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memset(put_bits_ptr(&ctx->m.pb), 0, put_bytes_left(&ctx->m.pb, 0));
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if (put_bits_count(pb) & 31)
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put_bits(pb, 32 - (put_bits_count(pb) & 31), 0);
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flush_put_bits(pb);
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memset(put_bits_ptr(pb), 0, put_bytes_left(pb, 0));
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return 0;
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}
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