diff options
author | Linjie Fu <linjie.fu@intel.com> | 2022-03-17 09:41:49 +0300 |
---|---|---|
committer | Haihao Xiang <haihao.xiang@intel.com> | 2022-04-11 06:38:43 +0300 |
commit | a285968a0b122484635846babd9a1e8183e70fb0 (patch) | |
tree | 7e3833f6192a743095fd7f51a2dbbaccfa82c0a2 /libavcodec/vaapi_encode.c | |
parent | 6e45acd23b6b5062f548c2551b1a64cc268eb787 (diff) |
lavc/vaapi_encode_h265: Add GPB frame support for hevc_vaapi
Use GPB frames to replace regular P/B frames if backend driver does not
support it.
- GPB:
Generalized P and B picture. Regular P/B frames replaced by B
frames with previous-predict only, L0 == L1. Normal B frames
still have 2 different ref_lists and allow bi-prediction
Signed-off-by: Linjie Fu <linjie.fu@intel.com>
Signed-off-by: Fei Wang <fei.w.wang@intel.com>
Diffstat (limited to 'libavcodec/vaapi_encode.c')
-rw-r--r-- | libavcodec/vaapi_encode.c | 67 |
1 files changed, 62 insertions, 5 deletions
diff --git a/libavcodec/vaapi_encode.c b/libavcodec/vaapi_encode.c index ffd6cb1c25..21a0ed0827 100644 --- a/libavcodec/vaapi_encode.c +++ b/libavcodec/vaapi_encode.c @@ -1875,6 +1875,7 @@ static av_cold int vaapi_encode_init_gop_structure(AVCodecContext *avctx) VAStatus vas; VAConfigAttrib attr = { VAConfigAttribEncMaxRefFrames }; uint32_t ref_l0, ref_l1; + int prediction_pre_only; vas = vaGetConfigAttributes(ctx->hwctx->display, ctx->va_profile, @@ -1893,6 +1894,51 @@ static av_cold int vaapi_encode_init_gop_structure(AVCodecContext *avctx) ref_l1 = attr.value >> 16 & 0xffff; } + ctx->p_to_gpb = 0; + prediction_pre_only = 0; + +#if VA_CHECK_VERSION(1, 9, 0) + if (!(ctx->codec->flags & FLAG_INTRA_ONLY || + avctx->gop_size <= 1)) { + attr = (VAConfigAttrib) { VAConfigAttribPredictionDirection }; + vas = vaGetConfigAttributes(ctx->hwctx->display, + ctx->va_profile, + ctx->va_entrypoint, + &attr, 1); + if (vas != VA_STATUS_SUCCESS) { + av_log(avctx, AV_LOG_WARNING, "Failed to query prediction direction " + "attribute: %d (%s).\n", vas, vaErrorStr(vas)); + return AVERROR_EXTERNAL; + } else if (attr.value == VA_ATTRIB_NOT_SUPPORTED) { + av_log(avctx, AV_LOG_VERBOSE, "Driver does not report any additional " + "prediction constraints.\n"); + } else { + if (((ref_l0 > 0 || ref_l1 > 0) && !(attr.value & VA_PREDICTION_DIRECTION_PREVIOUS)) || + ((ref_l1 == 0) && (attr.value & (VA_PREDICTION_DIRECTION_FUTURE | VA_PREDICTION_DIRECTION_BI_NOT_EMPTY)))) { + av_log(avctx, AV_LOG_ERROR, "Driver report incorrect prediction " + "direction attribute.\n"); + return AVERROR_EXTERNAL; + } + + if (!(attr.value & VA_PREDICTION_DIRECTION_FUTURE)) { + if (ref_l0 > 0 && ref_l1 > 0) { + prediction_pre_only = 1; + av_log(avctx, AV_LOG_VERBOSE, "Driver only support same reference " + "lists for B-frames.\n"); + } + } + + if (attr.value & VA_PREDICTION_DIRECTION_BI_NOT_EMPTY) { + if (ref_l0 > 0 && ref_l1 > 0) { + ctx->p_to_gpb = 1; + av_log(avctx, AV_LOG_VERBOSE, "Driver does not support P-frames, " + "replacing them with B-frames.\n"); + } + } + } + } +#endif + if (ctx->codec->flags & FLAG_INTRA_ONLY || avctx->gop_size <= 1) { av_log(avctx, AV_LOG_VERBOSE, "Using intra frames only.\n"); @@ -1902,15 +1948,26 @@ static av_cold int vaapi_encode_init_gop_structure(AVCodecContext *avctx) "reference frames.\n"); return AVERROR(EINVAL); } else if (!(ctx->codec->flags & FLAG_B_PICTURES) || - ref_l1 < 1 || avctx->max_b_frames < 1) { - av_log(avctx, AV_LOG_VERBOSE, "Using intra and P-frames " - "(supported references: %d / %d).\n", ref_l0, ref_l1); + ref_l1 < 1 || avctx->max_b_frames < 1 || + prediction_pre_only) { + if (ctx->p_to_gpb) + av_log(avctx, AV_LOG_VERBOSE, "Using intra and B-frames " + "(supported references: %d / %d).\n", + ref_l0, ref_l1); + else + av_log(avctx, AV_LOG_VERBOSE, "Using intra and P-frames " + "(supported references: %d / %d).\n", ref_l0, ref_l1); ctx->gop_size = avctx->gop_size; ctx->p_per_i = INT_MAX; ctx->b_per_p = 0; } else { - av_log(avctx, AV_LOG_VERBOSE, "Using intra, P- and B-frames " - "(supported references: %d / %d).\n", ref_l0, ref_l1); + if (ctx->p_to_gpb) + av_log(avctx, AV_LOG_VERBOSE, "Using intra and B-frames " + "(supported references: %d / %d).\n", + ref_l0, ref_l1); + else + av_log(avctx, AV_LOG_VERBOSE, "Using intra, P- and B-frames " + "(supported references: %d / %d).\n", ref_l0, ref_l1); ctx->gop_size = avctx->gop_size; ctx->p_per_i = INT_MAX; ctx->b_per_p = avctx->max_b_frames; |