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[82.8.130.139]) by smtp.gmail.com with ESMTPSA id r2-v6sm18640545wrq.55.2018.06.07.16.43.54 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 07 Jun 2018 16:43:54 -0700 (PDT) From: Mark Thompson To: ffmpeg-devel@ffmpeg.org Date: Fri, 8 Jun 2018 00:43:11 +0100 Message-Id: <20180607234331.32139-17-sw@jkqxz.net> X-Mailer: git-send-email 2.16.3 In-Reply-To: <20180607234331.32139-1-sw@jkqxz.net> References: <20180607234331.32139-1-sw@jkqxz.net> Subject: [FFmpeg-devel] [PATCH v2 16/36] vaapi_encode: Clean up rate control configuration X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Query which modes are supported and select between VBR and CBR based on that - this removes all of the codec-specific rate control mode selection code. --- doc/encoders.texi | 2 - libavcodec/vaapi_encode.c | 173 ++++++++++++++++++++++++++++------------ libavcodec/vaapi_encode.h | 6 +- libavcodec/vaapi_encode_h264.c | 18 +---- libavcodec/vaapi_encode_h265.c | 14 +--- libavcodec/vaapi_encode_mjpeg.c | 3 +- libavcodec/vaapi_encode_mpeg2.c | 9 +-- libavcodec/vaapi_encode_vp8.c | 13 +-- libavcodec/vaapi_encode_vp9.c | 13 +-- 9 files changed, 137 insertions(+), 114 deletions(-) diff --git a/doc/encoders.texi b/doc/encoders.texi index 62a1509a96..0c0a307987 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -2643,8 +2643,6 @@ Always encodes using the standard quantisation and huffman tables - @item mpeg2_vaapi @option{profile} and @option{level} set the value of @emph{profile_and_level_indication}. -No rate control is supported. - @item vp8_vaapi B-frames are not supported. diff --git a/libavcodec/vaapi_encode.c b/libavcodec/vaapi_encode.c index f4c063734c..5de5483454 100644 --- a/libavcodec/vaapi_encode.c +++ b/libavcodec/vaapi_encode.c @@ -1217,7 +1217,6 @@ static av_cold int vaapi_encode_config_attributes(AVCodecContext *avctx) int i; VAConfigAttrib attr[] = { - { VAConfigAttribRateControl }, { VAConfigAttribEncMaxRefFrames }, { VAConfigAttribEncPackedHeaders }, }; @@ -1241,32 +1240,6 @@ static av_cold int vaapi_encode_config_attributes(AVCodecContext *avctx) continue; } switch (attr[i].type) { - case VAConfigAttribRateControl: - // Hack for backward compatibility: CBR was the only - // usable RC mode for a long time, so old drivers will - // only have it. Normal default options may now choose - // VBR and then fail, however, so override it here with - // CBR if that is the only supported mode. - if (ctx->va_rc_mode == VA_RC_VBR && - !(attr[i].value & VA_RC_VBR) && - (attr[i].value & VA_RC_CBR)) { - av_log(avctx, AV_LOG_WARNING, "VBR rate control is " - "not supported with this driver version; " - "using CBR instead.\n"); - ctx->va_rc_mode = VA_RC_CBR; - } - if (!(ctx->va_rc_mode & attr[i].value)) { - av_log(avctx, AV_LOG_ERROR, "Rate control mode %#x " - "is not supported (mask: %#x).\n", - ctx->va_rc_mode, attr[i].value); - return AVERROR(EINVAL); - } - ctx->config_attributes[ctx->nb_config_attributes++] = - (VAConfigAttrib) { - .type = VAConfigAttribRateControl, - .value = ctx->va_rc_mode, - }; - break; case VAConfigAttribEncMaxRefFrames: { unsigned int ref_l0 = attr[i].value & 0xffff; @@ -1313,44 +1286,144 @@ static av_cold int vaapi_encode_config_attributes(AVCodecContext *avctx) static av_cold int vaapi_encode_init_rate_control(AVCodecContext *avctx) { VAAPIEncodeContext *ctx = avctx->priv_data; - int rc_bits_per_second; - int rc_target_percentage; - int rc_window_size; - int hrd_buffer_size; - int hrd_initial_buffer_fullness; + int64_t rc_bits_per_second; + int rc_target_percentage; + int rc_window_size; + int64_t hrd_buffer_size; + int64_t hrd_initial_buffer_fullness; int fr_num, fr_den; + VAConfigAttrib rc_attr = { VAConfigAttribRateControl }; + VAStatus vas; + + vas = vaGetConfigAttributes(ctx->hwctx->display, + ctx->va_profile, ctx->va_entrypoint, + &rc_attr, 1); + if (vas != VA_STATUS_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to query rate control " + "config attribute: %d (%s).\n", vas, vaErrorStr(vas)); + return AVERROR_EXTERNAL; + } - if (avctx->bit_rate > INT32_MAX) { - av_log(avctx, AV_LOG_ERROR, "Target bitrate of 2^31 bps or " - "higher is not supported.\n"); + if (rc_attr.value == VA_ATTRIB_NOT_SUPPORTED) { + av_log(avctx, AV_LOG_VERBOSE, "Driver does not report any " + "supported rate control modes: assuming constant-quality.\n"); + ctx->va_rc_mode = VA_RC_CQP; + return 0; + } + if (avctx->flags & AV_CODEC_FLAG_QSCALE || + avctx->bit_rate <= 0) { + if (rc_attr.value & VA_RC_CQP) { + av_log(avctx, AV_LOG_VERBOSE, "Using constant-quality mode.\n"); + ctx->va_rc_mode = VA_RC_CQP; + return 0; + } else { + av_log(avctx, AV_LOG_ERROR, "Driver does not support " + "constant-quality mode (%#x).\n", rc_attr.value); + return AVERROR(EINVAL); + } + } + + if (!(rc_attr.value & (VA_RC_CBR | VA_RC_VBR))) { + av_log(avctx, AV_LOG_ERROR, "Driver does not support any " + "bitrate-targetted rate control modes.\n"); return AVERROR(EINVAL); } if (avctx->rc_buffer_size) hrd_buffer_size = avctx->rc_buffer_size; + else if (avctx->rc_max_rate > 0) + hrd_buffer_size = avctx->rc_max_rate; else hrd_buffer_size = avctx->bit_rate; - if (avctx->rc_initial_buffer_occupancy) + if (avctx->rc_initial_buffer_occupancy) { + if (avctx->rc_initial_buffer_occupancy > hrd_buffer_size) { + av_log(avctx, AV_LOG_ERROR, "Invalid RC buffer settings: " + "must have initial buffer size (%d) < " + "buffer size (%"PRId64").\n", + avctx->rc_initial_buffer_occupancy, hrd_buffer_size); + return AVERROR(EINVAL); + } hrd_initial_buffer_fullness = avctx->rc_initial_buffer_occupancy; - else + } else { hrd_initial_buffer_fullness = hrd_buffer_size * 3 / 4; + } + + if (avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate) { + av_log(avctx, AV_LOG_ERROR, "Invalid bitrate settings: must have " + "bitrate (%"PRId64") <= maxrate (%"PRId64").\n", + avctx->bit_rate, avctx->rc_max_rate); + return AVERROR(EINVAL); + } + + if (avctx->rc_max_rate > avctx->bit_rate) { + if (!(rc_attr.value & VA_RC_VBR)) { + av_log(avctx, AV_LOG_WARNING, "Driver does not support " + "VBR mode (%#x), using CBR mode instead.\n", + rc_attr.value); + ctx->va_rc_mode = VA_RC_CBR; + } else { + ctx->va_rc_mode = VA_RC_VBR; + } + + rc_bits_per_second = avctx->rc_max_rate; + rc_target_percentage = (avctx->bit_rate * 100) / avctx->rc_max_rate; + + } else if (avctx->rc_max_rate == avctx->bit_rate) { + if (!(rc_attr.value & VA_RC_CBR)) { + av_log(avctx, AV_LOG_WARNING, "Driver does not support " + "CBR mode (%#x), using VBR mode instead.\n", + rc_attr.value); + ctx->va_rc_mode = VA_RC_VBR; + } else { + ctx->va_rc_mode = VA_RC_CBR; + } - if (ctx->va_rc_mode == VA_RC_CBR) { rc_bits_per_second = avctx->bit_rate; rc_target_percentage = 100; - rc_window_size = 1000; + } else { - if (avctx->rc_max_rate < avctx->bit_rate) { - // Max rate is unset or invalid, just use the normal bitrate. + if (rc_attr.value & VA_RC_VBR) { + ctx->va_rc_mode = VA_RC_VBR; + + // We only have a target bitrate, but VAAPI requires that a + // maximum rate be supplied as well. Since the user has + // offered no particular constraint, arbitrarily pick a + // maximum rate of double the target rate. + rc_bits_per_second = 2 * avctx->bit_rate; + rc_target_percentage = 50; + } else { + ctx->va_rc_mode = VA_RC_CBR; + rc_bits_per_second = avctx->bit_rate; rc_target_percentage = 100; - } else { - rc_bits_per_second = avctx->rc_max_rate; - rc_target_percentage = (avctx->bit_rate * 100) / rc_bits_per_second; } - rc_window_size = (hrd_buffer_size * 1000) / avctx->bit_rate; } + rc_window_size = (hrd_buffer_size * 1000) / rc_bits_per_second; + + av_log(avctx, AV_LOG_VERBOSE, "RC mode: %s, %d%% of %"PRId64" bps " + "over %d ms.\n", ctx->va_rc_mode == VA_RC_VBR ? "VBR" : "CBR", + rc_target_percentage, rc_bits_per_second, rc_window_size); + av_log(avctx, AV_LOG_VERBOSE, "RC buffer: %"PRId64" bits, " + "initial fullness %"PRId64" bits.\n", + hrd_buffer_size, hrd_initial_buffer_fullness); + + if (rc_bits_per_second > UINT32_MAX || + hrd_buffer_size > UINT32_MAX || + hrd_initial_buffer_fullness > UINT32_MAX) { + av_log(avctx, AV_LOG_ERROR, "RC parameters of 2^32 or " + "greater are not supported by VAAPI.\n"); + return AVERROR(EINVAL); + } + + ctx->va_bit_rate = rc_bits_per_second; + + ctx->config_attributes[ctx->nb_config_attributes++] = + (VAConfigAttrib) { + .type = VAConfigAttribRateControl, + .value = ctx->va_rc_mode, + }; + ctx->rc_params.misc.type = VAEncMiscParameterTypeRateControl; ctx->rc_params.rc = (VAEncMiscParameterRateControl) { .bits_per_second = rc_bits_per_second, @@ -1611,6 +1684,10 @@ av_cold int ff_vaapi_encode_init(AVCodecContext *avctx) if (err < 0) goto fail; + err = vaapi_encode_init_rate_control(avctx); + if (err < 0) + goto fail; + err = vaapi_encode_config_attributes(avctx); if (err < 0) goto fail; @@ -1658,12 +1735,6 @@ av_cold int ff_vaapi_encode_init(AVCodecContext *avctx) goto fail; } - if (ctx->va_rc_mode & ~VA_RC_CQP) { - err = vaapi_encode_init_rate_control(avctx); - if (err < 0) - goto fail; - } - if (ctx->codec->configure) { err = ctx->codec->configure(avctx); if (err < 0) diff --git a/libavcodec/vaapi_encode.h b/libavcodec/vaapi_encode.h index b8f2ed6d21..6fac4781c3 100644 --- a/libavcodec/vaapi_encode.h +++ b/libavcodec/vaapi_encode.h @@ -116,8 +116,6 @@ typedef struct VAAPIEncodeContext { // Use low power encoding mode. int low_power; - // Rate control mode. - unsigned int va_rc_mode; // Supported packed headers (initially the desired set, modified // later to what is actually supported). unsigned int va_packed_headers; @@ -138,6 +136,10 @@ typedef struct VAAPIEncodeContext { VAProfile va_profile; // Encoding entrypoint (VAEntryoint*). VAEntrypoint va_entrypoint; + // Rate control mode. + unsigned int va_rc_mode; + // Bitrate for codec-specific encoder parameters. + unsigned int va_bit_rate; // Configuration attributes to use when creating va_config. VAConfigAttrib config_attributes[MAX_CONFIG_ATTRIBUTES]; diff --git a/libavcodec/vaapi_encode_h264.c b/libavcodec/vaapi_encode_h264.c index df6f39a946..1e6eb2e39b 100644 --- a/libavcodec/vaapi_encode_h264.c +++ b/libavcodec/vaapi_encode_h264.c @@ -425,9 +425,9 @@ static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx) // Try to scale these to a sensible range so that the // golomb encode of the value is not overlong. hrd->bit_rate_scale = - av_clip_uintp2(av_log2(avctx->bit_rate) - 15 - 6, 4); + av_clip_uintp2(av_log2(ctx->va_bit_rate) - 15 - 6, 4); hrd->bit_rate_value_minus1[0] = - (avctx->bit_rate >> hrd->bit_rate_scale + 6) - 1; + (ctx->va_bit_rate >> hrd->bit_rate_scale + 6) - 1; hrd->cpb_size_scale = av_clip_uintp2(av_log2(ctx->hrd_params.hrd.buffer_size) - 15 - 4, 4); @@ -497,7 +497,7 @@ static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx) .intra_idr_period = avctx->gop_size, .ip_period = ctx->b_per_p + 1, - .bits_per_second = avctx->bit_rate, + .bits_per_second = ctx->va_bit_rate, .max_num_ref_frames = sps->max_num_ref_frames, .picture_width_in_mbs = sps->pic_width_in_mbs_minus1 + 1, .picture_height_in_mbs = sps->pic_height_in_map_units_minus1 + 1, @@ -823,10 +823,6 @@ static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx) priv->fixed_qp_p = 26; priv->fixed_qp_b = 26; - av_log(avctx, AV_LOG_DEBUG, "Using %s-bitrate = %"PRId64" bps.\n", - ctx->va_rc_mode == VA_RC_CBR ? "constant" : "variable", - avctx->bit_rate); - } else { av_assert0(0 && "Invalid RC mode."); } @@ -934,14 +930,6 @@ static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx) return AVERROR_PATCHWELCOME; } - if (avctx->bit_rate > 0) { - if (avctx->rc_max_rate == avctx->bit_rate) - ctx->va_rc_mode = VA_RC_CBR; - else - ctx->va_rc_mode = VA_RC_VBR; - } else - ctx->va_rc_mode = VA_RC_CQP; - ctx->va_packed_headers = VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS. VA_ENC_PACKED_HEADER_SLICE | // Slice headers. diff --git a/libavcodec/vaapi_encode_h265.c b/libavcodec/vaapi_encode_h265.c index b8b66b87cb..b296919b37 100644 --- a/libavcodec/vaapi_encode_h265.c +++ b/libavcodec/vaapi_encode_h265.c @@ -512,7 +512,7 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx) .intra_period = avctx->gop_size, .intra_idr_period = avctx->gop_size, .ip_period = ctx->b_per_p + 1, - .bits_per_second = avctx->bit_rate, + .bits_per_second = ctx->va_bit_rate, .pic_width_in_luma_samples = sps->pic_width_in_luma_samples, .pic_height_in_luma_samples = sps->pic_height_in_luma_samples, @@ -1014,10 +1014,6 @@ static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx) priv->fixed_qp_p = 30; priv->fixed_qp_b = 30; - av_log(avctx, AV_LOG_DEBUG, "Using %s-bitrate = %"PRId64" bps.\n", - ctx->va_rc_mode == VA_RC_CBR ? "constant" : "variable", - avctx->bit_rate); - } else { av_assert0(0 && "Invalid RC mode."); } @@ -1068,14 +1064,6 @@ static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx) if (avctx->level == FF_LEVEL_UNKNOWN) avctx->level = priv->level; - if (avctx->bit_rate > 0) { - if (avctx->rc_max_rate == avctx->bit_rate) - ctx->va_rc_mode = VA_RC_CBR; - else - ctx->va_rc_mode = VA_RC_VBR; - } else - ctx->va_rc_mode = VA_RC_CQP; - ctx->va_packed_headers = VA_ENC_PACKED_HEADER_SEQUENCE | // VPS, SPS and PPS. VA_ENC_PACKED_HEADER_SLICE | // Slice headers. diff --git a/libavcodec/vaapi_encode_mjpeg.c b/libavcodec/vaapi_encode_mjpeg.c index b328beaa09..67ac2fba96 100644 --- a/libavcodec/vaapi_encode_mjpeg.c +++ b/libavcodec/vaapi_encode_mjpeg.c @@ -388,8 +388,6 @@ static av_cold int vaapi_encode_mjpeg_init(AVCodecContext *avctx) ctx->codec = &vaapi_encode_type_mjpeg; - ctx->va_rc_mode = VA_RC_CQP; - // The JPEG image header - see note above. ctx->va_packed_headers = VA_ENC_PACKED_HEADER_RAW_DATA; @@ -402,6 +400,7 @@ static av_cold int vaapi_encode_mjpeg_init(AVCodecContext *avctx) static const AVCodecDefault vaapi_encode_mjpeg_defaults[] = { { "global_quality", "80" }, + { "b", "0" }, { NULL }, }; diff --git a/libavcodec/vaapi_encode_mpeg2.c b/libavcodec/vaapi_encode_mpeg2.c index db79d72115..ff86b8817e 100644 --- a/libavcodec/vaapi_encode_mpeg2.c +++ b/libavcodec/vaapi_encode_mpeg2.c @@ -188,8 +188,8 @@ static int vaapi_encode_mpeg2_init_sequence_params(AVCodecContext *avctx) memset(pce, 0, sizeof(*pce)); - if (avctx->bit_rate > 0) { - priv->bit_rate = (avctx->bit_rate + 399) / 400; + if (ctx->va_bit_rate > 0) { + priv->bit_rate = (ctx->va_bit_rate + 399) / 400; } else { // Unknown (not a bitrate-targetting mode), so just use the // highest value. @@ -361,7 +361,7 @@ static int vaapi_encode_mpeg2_init_sequence_params(AVCodecContext *avctx) .picture_width = avctx->width, .picture_height = avctx->height, - .bits_per_second = avctx->bit_rate, + .bits_per_second = ctx->va_bit_rate, .frame_rate = av_q2d(priv->frame_rate), .aspect_ratio_information = sh->aspect_ratio_information, .vbv_buffer_size = priv->vbv_buffer_size, @@ -615,8 +615,6 @@ static av_cold int vaapi_encode_mpeg2_init(AVCodecContext *avctx) return AVERROR(EINVAL); } - ctx->va_rc_mode = VA_RC_CQP; - ctx->va_packed_headers = VA_ENC_PACKED_HEADER_SEQUENCE | VA_ENC_PACKED_HEADER_PICTURE; @@ -666,6 +664,7 @@ static const AVOption vaapi_encode_mpeg2_options[] = { }; static const AVCodecDefault vaapi_encode_mpeg2_defaults[] = { + { "b", "0" }, { "bf", "1" }, { "g", "120" }, { "i_qfactor", "1" }, diff --git a/libavcodec/vaapi_encode_vp8.c b/libavcodec/vaapi_encode_vp8.c index 9588826bfb..40871a6bbf 100644 --- a/libavcodec/vaapi_encode_vp8.c +++ b/libavcodec/vaapi_encode_vp8.c @@ -65,7 +65,7 @@ static int vaapi_encode_vp8_init_sequence_params(AVCodecContext *avctx) vseq->kf_auto = 0; if (!(ctx->va_rc_mode & VA_RC_CQP)) { - vseq->bits_per_second = avctx->bit_rate; + vseq->bits_per_second = ctx->va_bit_rate; vseq->intra_period = avctx->gop_size; } @@ -205,17 +205,6 @@ static av_cold int vaapi_encode_vp8_init(AVCodecContext *avctx) ctx->codec = &vaapi_encode_type_vp8; - if (avctx->flags & AV_CODEC_FLAG_QSCALE) { - ctx->va_rc_mode = VA_RC_CQP; - } else if (avctx->bit_rate > 0) { - if (avctx->rc_max_rate == avctx->bit_rate) - ctx->va_rc_mode = VA_RC_CBR; - else - ctx->va_rc_mode = VA_RC_VBR; - } else { - ctx->va_rc_mode = VA_RC_CQP; - } - // Packed headers are not currently supported. ctx->va_packed_headers = 0; diff --git a/libavcodec/vaapi_encode_vp9.c b/libavcodec/vaapi_encode_vp9.c index 4d7cec0520..e400bc8b79 100644 --- a/libavcodec/vaapi_encode_vp9.c +++ b/libavcodec/vaapi_encode_vp9.c @@ -71,7 +71,7 @@ static int vaapi_encode_vp9_init_sequence_params(AVCodecContext *avctx) vseq->kf_auto = 0; if (!(ctx->va_rc_mode & VA_RC_CQP)) { - vseq->bits_per_second = avctx->bit_rate; + vseq->bits_per_second = ctx->va_bit_rate; vseq->intra_period = avctx->gop_size; } @@ -227,17 +227,6 @@ static av_cold int vaapi_encode_vp9_init(AVCodecContext *avctx) ctx->codec = &vaapi_encode_type_vp9; - if (avctx->flags & AV_CODEC_FLAG_QSCALE) { - ctx->va_rc_mode = VA_RC_CQP; - } else if (avctx->bit_rate > 0) { - if (avctx->bit_rate == avctx->rc_max_rate) - ctx->va_rc_mode = VA_RC_CBR; - else - ctx->va_rc_mode = VA_RC_VBR; - } else { - ctx->va_rc_mode = VA_RC_CQP; - } - // Packed headers are not currently supported. ctx->va_packed_headers = 0;