@@ -21,6 +21,7 @@ version <next>:
- MOFLEX demuxer
- MODS demuxer
- PhotoCD decoder
+- AV1 decoder (Hardware acceleration used only)
version 4.3:
@@ -2685,6 +2685,7 @@ atrac3al_decoder_select="mdct"
atrac3p_decoder_select="mdct sinewin"
atrac3pal_decoder_select="mdct sinewin"
atrac9_decoder_select="mdct"
+av1_decoder_select="cbs_av1"
avrn_decoder_select="exif jpegtables"
bink_decoder_select="blockdsp hpeldsp"
binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
@@ -768,6 +768,7 @@ OBJS-$(CONFIG_ZLIB_DECODER) += lcldec.o
OBJS-$(CONFIG_ZLIB_ENCODER) += lclenc.o
OBJS-$(CONFIG_ZMBV_DECODER) += zmbv.o
OBJS-$(CONFIG_ZMBV_ENCODER) += zmbvenc.o
+OBJS-$(CONFIG_AV1_DECODER) += av1dec.o
# (AD)PCM decoders/encoders
OBJS-$(CONFIG_PCM_ALAW_DECODER) += pcm.o
@@ -766,6 +766,7 @@ extern AVCodec ff_idf_decoder;
* above is available */
extern AVCodec ff_aac_mf_encoder;
extern AVCodec ff_ac3_mf_encoder;
+extern AVCodec ff_av1_decoder;
extern AVCodec ff_h263_v4l2m2m_encoder;
extern AVCodec ff_libaom_av1_decoder;
extern AVCodec ff_libopenh264_encoder;
new file mode 100644
@@ -0,0 +1,860 @@
+/*
+ * AV1video decoder
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+#include "get_bits.h"
+#include "hwconfig.h"
+#include "internal.h"
+#include "profiles.h"
+#include "libavutil/pixdesc.h"
+#include "av1dec.h"
+
+static void setup_past_independence(AV1Frame *f)
+{
+ f->loop_filter_delta_enabled = 1;
+
+ f->loop_filter_ref_deltas[AV1_REF_FRAME_INTRA] = 1;
+ f->loop_filter_ref_deltas[AV1_REF_FRAME_LAST] = 0;
+ f->loop_filter_ref_deltas[AV1_REF_FRAME_LAST2] = 0;
+ f->loop_filter_ref_deltas[AV1_REF_FRAME_LAST3] = 0;
+ f->loop_filter_ref_deltas[AV1_REF_FRAME_GOLDEN] = -1;
+ f->loop_filter_ref_deltas[AV1_REF_FRAME_BWDREF] = 0;
+ f->loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF2] = -1;
+ f->loop_filter_ref_deltas[AV1_REF_FRAME_ALTREF] = -1;
+
+ f->loop_filter_mode_deltas[0] = 0;
+ f->loop_filter_mode_deltas[1] = 0;
+}
+
+static void load_previous_and_update(AV1DecContext *s)
+{
+ uint8_t primary_frame, prev_frame;
+
+ primary_frame = s->raw_frame_header->primary_ref_frame;
+ prev_frame = s->raw_frame_header->ref_frame_idx[primary_frame];
+ memcpy(s->cur_frame.loop_filter_ref_deltas,
+ s->ref[prev_frame].loop_filter_ref_deltas,
+ AV1_NUM_REF_FRAMES * sizeof(int8_t));
+ memcpy(s->cur_frame.loop_filter_mode_deltas,
+ s->ref[prev_frame].loop_filter_mode_deltas,
+ 2 * sizeof(int8_t));
+
+ if (s->raw_frame_header->loop_filter_delta_update) {
+ for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) {
+ if (s->raw_frame_header->update_ref_delta[i])
+ s->cur_frame.loop_filter_ref_deltas[i] =
+ s->raw_frame_header->loop_filter_ref_deltas[i];
+ }
+
+ for (int i = 0; i < 2; i++) {
+ if (s->raw_frame_header->update_mode_delta[i])
+ s->cur_frame.loop_filter_mode_deltas[i] =
+ s->raw_frame_header->loop_filter_mode_deltas[i];
+ }
+ }
+
+ s->cur_frame.loop_filter_delta_enabled =
+ s->raw_frame_header->loop_filter_delta_enabled;
+}
+
+static uint32_t inverse_recenter(int r, uint32_t v)
+{
+ if (v > 2 * r)
+ return v;
+ else if (v & 1)
+ return r - ((v + 1) >> 1);
+ else
+ return r + (v >> 1);
+}
+
+static uint32_t decode_unsigned_subexp_with_ref(uint32_t sub_exp,
+ int mx, int r)
+{
+ if ((r << 1) <= mx) {
+ return inverse_recenter(r, sub_exp);
+ } else {
+ return mx - 1 - inverse_recenter(mx - 1 - r, sub_exp);
+ }
+}
+
+static int32_t decode_signed_subexp_with_ref(uint32_t sub_exp, int low,
+ int high, int r)
+{
+ int32_t x = decode_unsigned_subexp_with_ref(sub_exp, high - low, r - low);
+ return x + low;
+}
+
+static void read_global_param(AV1DecContext *s, int type, int ref, int idx)
+{
+ uint8_t primary_frame, prev_frame;
+ uint32_t abs_bits, prec_bits, round, prec_diff, sub, mx;
+ int32_t r;
+
+ primary_frame = s->raw_frame_header->primary_ref_frame;
+ prev_frame = s->raw_frame_header->ref_frame_idx[primary_frame];
+ abs_bits = AV1_GM_ABS_ALPHA_BITS;
+ prec_bits = AV1_GM_ALPHA_PREC_BITS;
+
+ if (idx < 2) {
+ if (type == AV1_WARP_MODEL_TRANSLATION) {
+ abs_bits = AV1_GM_ABS_TRANS_ONLY_BITS -
+ !s->raw_frame_header->allow_high_precision_mv;
+ prec_bits = AV1_GM_TRANS_ONLY_PREC_BITS -
+ !s->raw_frame_header->allow_high_precision_mv;
+ } else {
+ abs_bits = AV1_GM_ABS_TRANS_BITS;
+ prec_bits = AV1_GM_TRANS_PREC_BITS;
+ }
+ }
+ round = (idx % 3) == 2 ? (1 << AV1_WARPEDMODEL_PREC_BITS) : 0;
+ prec_diff = AV1_WARPEDMODEL_PREC_BITS - prec_bits;
+ sub = (idx % 3) == 2 ? (1 << prec_bits) : 0;
+ mx = 1 << abs_bits;
+ r = (s->ref[prev_frame].gm_params[ref][idx] >> prec_diff) - sub;
+
+ s->cur_frame.gm_params[ref][idx] =
+ (decode_signed_subexp_with_ref(s->raw_frame_header->gm_params[ref][idx],
+ -mx, mx + 1, r) << prec_diff) + round;
+}
+
+/**
+* update gm type/params, since cbs already implemented part of this funcation,
+* so we don't need to full implement spec.
+*/
+static void global_motion_params(AV1DecContext *s)
+{
+ const AV1RawFrameHeader *header = s->raw_frame_header;
+ int type, ref;
+
+ for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
+ s->cur_frame.gm_type[ref] = AV1_WARP_MODEL_IDENTITY;
+ for (int i = 0; i < 6; i++)
+ s->cur_frame.gm_params[ref][i] = (i % 3 == 2) ?
+ 1 << AV1_WARPEDMODEL_PREC_BITS : 0;
+ }
+ if (header->frame_type == AV1_FRAME_KEY ||
+ header->frame_type == AV1_FRAME_INTRA_ONLY)
+ return;
+
+ for (ref = AV1_REF_FRAME_LAST; ref <= AV1_REF_FRAME_ALTREF; ref++) {
+ if (header->is_global[ref]) {
+ if (header->is_rot_zoom[ref]) {
+ type = AV1_WARP_MODEL_ROTZOOM;
+ } else {
+ type = header->is_translation[ref] ? AV1_WARP_MODEL_TRANSLATION
+ : AV1_WARP_MODEL_AFFINE;
+ }
+ } else {
+ type = AV1_WARP_MODEL_IDENTITY;
+ }
+ s->cur_frame.gm_type[ref] = type;
+
+ if (type >= AV1_WARP_MODEL_ROTZOOM) {
+ read_global_param(s, type, ref, 2);
+ read_global_param(s, type, ref, 3);
+ if (type == AV1_WARP_MODEL_AFFINE) {
+ read_global_param(s, type, ref, 4);
+ read_global_param(s, type, ref, 5);
+ } else {
+ s->cur_frame.gm_params[ref][4] = -s->cur_frame.gm_params[ref][3];
+ s->cur_frame.gm_params[ref][5] = s->cur_frame.gm_params[ref][2];
+ }
+ }
+ if (type >= AV1_WARP_MODEL_TRANSLATION) {
+ read_global_param(s, type, ref, 0);
+ read_global_param(s, type, ref, 1);
+ }
+ }
+}
+
+static int free_tile_data(AV1DecContext *s)
+{
+ if (s->tile_group_info)
+ av_freep(&s->tile_group_info);
+ return 0;
+}
+
+static int init_tile_data(AV1DecContext *s)
+
+{
+ uint16_t cur_tile_num =
+ s->raw_frame_header->tile_cols * s->raw_frame_header->tile_rows;
+ if (s->tile_num < cur_tile_num) {
+ s->tile_group_info = av_realloc_array(s->tile_group_info, cur_tile_num,
+ sizeof(TileGroupInfo));
+ if (!s->tile_group_info) {
+ return AVERROR(ENOMEM);
+ }
+ s->tile_num = cur_tile_num;
+ }
+
+ return 0;
+}
+
+static int get_tiles_info(AVCodecContext *avctx, AV1RawTileGroup *tile_group)
+{
+ AV1DecContext *s = avctx->priv_data;
+ GetBitContext gb;
+ uint16_t tile_num, tile_row, tile_col;
+ uint32_t size = 0, size_bytes = 0, offset = 0;
+ int ret;
+
+ if ((ret = init_get_bits8(&gb,
+ tile_group->tile_data.data,
+ tile_group->tile_data.data_size)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to initialize bitstream reader.\n");
+ return ret;
+ }
+
+ s->tg_start = tile_group->tg_start;
+ s->tg_end = tile_group->tg_end;
+
+ for (tile_num = tile_group->tg_start; tile_num <= tile_group->tg_end; tile_num++) {
+ tile_row = tile_num / s->raw_frame_header->tile_cols;
+ tile_col = tile_num % s->raw_frame_header->tile_cols;
+
+ if (tile_num == tile_group->tg_end) {
+ s->tile_group_info[tile_num].tile_size = get_bits_left(&gb) / 8;
+ s->tile_group_info[tile_num].tile_offset = offset;
+ s->tile_group_info[tile_num].tile_row = tile_row;
+ s->tile_group_info[tile_num].tile_column = tile_col;
+ return 0;
+ }
+ size_bytes = s->raw_frame_header->tile_size_bytes_minus1 + 1;
+ size = get_bits_le(&gb, size_bytes * 8) + 1;
+ skip_bits(&gb, size * 8);
+
+ offset += size_bytes;
+
+ s->tile_group_info[tile_num].tile_size = size;
+ s->tile_group_info[tile_num].tile_offset = offset;
+ s->tile_group_info[tile_num].tile_row = tile_row;
+ s->tile_group_info[tile_num].tile_column = tile_col;
+
+ offset += size;
+ }
+
+ return 0;
+
+}
+
+static int get_pixel_format(AVCodecContext *avctx)
+{
+ AV1DecContext *s = avctx->priv_data;
+ const AV1RawSequenceHeader *seq = s->raw_seq;
+ uint8_t bit_depth;
+ int ret;
+ enum AVPixelFormat pix_fmt = AV_PIX_FMT_NONE;
+#define HWACCEL_MAX (0)
+ enum AVPixelFormat pix_fmts[HWACCEL_MAX + 1], *fmtp = pix_fmts;
+
+ if (seq->seq_profile == 2 && seq->color_config.high_bitdepth)
+ bit_depth = seq->color_config.twelve_bit ? 12 : 10;
+ else if (seq->seq_profile <= 2)
+ bit_depth = seq->color_config.high_bitdepth ? 10 : 8;
+ else {
+ av_log(avctx, AV_LOG_ERROR,
+ "Unknow av1 profile %d.\n", seq->seq_profile);
+ return -1;
+ }
+
+ if (!seq->color_config.mono_chrome) {
+ // 4:4:4 x:0 y:0, 4:2:2 x:1 y:0, 4:2:0 x:1 y:1
+ if (seq->color_config.subsampling_x == 0 &&
+ seq->color_config.subsampling_y == 0) {
+ if (bit_depth == 8)
+ pix_fmt = AV_PIX_FMT_YUV444P;
+ else if (bit_depth == 10)
+ pix_fmt = AV_PIX_FMT_YUV444P10;
+ else if (bit_depth == 12)
+ pix_fmt = AV_PIX_FMT_YUV444P12;
+ else
+ av_log(avctx, AV_LOG_WARNING, "Unknow av1 pixel format.\n");
+ } else if (seq->color_config.subsampling_x == 1 &&
+ seq->color_config.subsampling_y == 0) {
+ if (bit_depth == 8)
+ pix_fmt = AV_PIX_FMT_YUV422P;
+ else if (bit_depth == 10)
+ pix_fmt = AV_PIX_FMT_YUV422P10;
+ else if (bit_depth == 12)
+ pix_fmt = AV_PIX_FMT_YUV422P12;
+ else
+ av_log(avctx, AV_LOG_WARNING, "Unknow av1 pixel format.\n");
+ } else if (seq->color_config.subsampling_x == 1 &&
+ seq->color_config.subsampling_y == 1) {
+ if (bit_depth == 8)
+ pix_fmt = AV_PIX_FMT_YUV420P;
+ else if (bit_depth == 10)
+ pix_fmt = AV_PIX_FMT_YUV420P10;
+ else if (bit_depth == 12)
+ pix_fmt = AV_PIX_FMT_YUV420P12;
+ else
+ av_log(avctx, AV_LOG_WARNING, "Unknow av1 pixel format.\n");
+ }
+ } else {
+ if (seq->color_config.subsampling_x == 1 &&
+ seq->color_config.subsampling_y == 1)
+ pix_fmt = AV_PIX_FMT_YUV440P;
+ else
+ av_log(avctx, AV_LOG_WARNING, "Unknow av1 pixel format.\n");
+ }
+
+ av_log(avctx, AV_LOG_DEBUG, "Av1 decode get format: %s.\n",
+ av_get_pix_fmt_name(pix_fmt));
+
+ if (pix_fmt == AV_PIX_FMT_NONE)
+ return -1;
+ s->pix_fmt = pix_fmt;
+
+ *fmtp = AV_PIX_FMT_NONE;
+ avctx->sw_pix_fmt = s->pix_fmt;
+ ret = ff_thread_get_format(avctx, pix_fmts);
+ if (ret < 0)
+ return ret;
+
+ /**
+ * check if the HW accel is inited correctly. If not, return un-implemented.
+ * Since now the av1 decoder doesn't support native decode, if it will be
+ * implemented in the future, need remove this check.
+ */
+ if (!avctx->hwaccel) {
+ av_log(avctx, AV_LOG_ERROR, "Your platform doesn't suppport"
+ " hardware acceleration AV1 decode.\n");
+ return AVERROR(ENOSYS);
+ }
+
+ return 0;
+}
+
+static void av1_frame_unref(AVCodecContext *avctx, AV1Frame *f)
+{
+ ff_thread_release_buffer(avctx, &f->tf);
+ av_buffer_unref(&f->hwaccel_priv_buf);
+ f->hwaccel_picture_private = NULL;
+}
+
+static int av1_frame_ref(AVCodecContext *avctx, AV1Frame *dst, AV1Frame *src)
+{
+ int ret;
+
+ ret = ff_thread_ref_frame(&dst->tf, &src->tf);
+ if (ret < 0)
+ return ret;
+
+ if (src->hwaccel_picture_private) {
+ dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
+ if (!dst->hwaccel_priv_buf)
+ goto fail;
+ dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
+ }
+
+ dst->loop_filter_delta_enabled = src->loop_filter_delta_enabled;
+ memcpy(dst->loop_filter_ref_deltas,
+ src->loop_filter_ref_deltas,
+ AV1_NUM_REF_FRAMES * sizeof(int8_t));
+ memcpy(dst->loop_filter_mode_deltas,
+ src->loop_filter_mode_deltas,
+ 2 * sizeof(int8_t));
+ memcpy(dst->gm_type,
+ src->gm_type,
+ AV1_NUM_REF_FRAMES * sizeof(uint8_t));
+ memcpy(dst->gm_params,
+ src->gm_params,
+ AV1_NUM_REF_FRAMES * 6 * sizeof(int32_t));
+
+ return 0;
+
+fail:
+ av1_frame_unref(avctx, dst);
+ return AVERROR(ENOMEM);
+}
+
+static av_cold int av1_decode_free(AVCodecContext *avctx)
+{
+ AV1DecContext *s = avctx->priv_data;
+
+ for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
+ if (s->ref[i].tf.f->buf[0])
+ av1_frame_unref(avctx, &s->ref[i]);
+ av_frame_free(&s->ref[i].tf.f);
+ }
+ if (s->cur_frame.tf.f->buf[0])
+ av1_frame_unref(avctx, &s->cur_frame);
+ av_frame_free(&s->cur_frame.tf.f);
+
+ if (s->seq_ref) {
+ av_buffer_unref(&s->seq_ref);
+ s->raw_seq = NULL;
+ }
+
+ if (s->header_ref) {
+ av_buffer_unref(&s->header_ref);
+ s->raw_frame_header = NULL;
+ }
+
+ free_tile_data(s);
+ ff_cbs_fragment_free(&s->current_obu);
+ ff_cbs_close(&s->cbc);
+
+ return 0;
+}
+
+static int set_context_with_sequence(AVCodecContext *avctx,
+ AV1RawSequenceHeader *seq)
+{
+ int ret;
+
+ avctx->profile = seq->seq_profile;
+ avctx->level = seq->seq_level_idx[0];
+
+ avctx->color_range =
+ seq->color_config.color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
+ avctx->color_primaries = seq->color_config.color_primaries;
+ avctx->colorspace = seq->color_config.color_primaries;
+ avctx->color_trc = seq->color_config.transfer_characteristics;
+
+ if (seq->timing_info.num_units_in_display_tick &&
+ seq->timing_info.time_scale) {
+ ret = av_reduce(&avctx->framerate.den, &avctx->framerate.num,
+ seq->timing_info.num_units_in_display_tick,
+ seq->timing_info.time_scale,
+ INT_MAX);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int update_context_with_frame_header(AVCodecContext *avctx,
+ AV1RawFrameHeader *header)
+{
+ AVRational aspect_ratio;
+ int width, height, r_width, r_height;
+ int ret;
+
+ width = header->frame_width_minus_1 + 1;
+ height = header->frame_height_minus_1 + 1;
+ r_width = header->render_width_minus_1 + 1;
+ r_height = header->render_height_minus_1 + 1;
+
+ if (avctx->width != width || avctx->height != height) {
+ ret = ff_set_dimensions(avctx, width, height);
+ if (ret < 0)
+ return ret;
+ }
+
+ ret = av_reduce(&aspect_ratio.num, &aspect_ratio.den,
+ height * r_width, width * r_height, INT_MAX);
+ if (ret < 0)
+ return ret;
+
+ if (avctx->sample_aspect_ratio.num != aspect_ratio.num ||
+ avctx->sample_aspect_ratio.den != aspect_ratio.den) {
+ ret = ff_set_sar(avctx, aspect_ratio);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static av_cold int av1_decode_init(AVCodecContext *avctx)
+{
+ AV1DecContext *s = avctx->priv_data;
+ AV1RawSequenceHeader *seq;
+ int ret;
+
+ s->avctx = avctx;
+ s->pix_fmt = AV_PIX_FMT_NONE;
+ s->seq_ref = NULL;
+ s->header_ref = NULL;
+ s->raw_frame_header = NULL;
+ s->raw_seq = NULL;
+ s->tile_group_info = NULL;
+ s->tile_num = 0;
+
+ for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++) {
+ s->ref[i].tf.f = av_frame_alloc();
+ if (!s->ref[i].tf.f) {
+ av1_decode_free(avctx);
+ av_log(avctx, AV_LOG_ERROR,
+ "Failed to allocate reference frame buffer %d.\n", i);
+ return AVERROR(ENOMEM);
+ }
+ }
+
+ s->cur_frame.tf.f = av_frame_alloc();
+ if (!s->cur_frame.tf.f) {
+ av1_decode_free(avctx);
+ av_log(avctx, AV_LOG_ERROR,
+ "Failed to allocate current frame buffer.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ ret = ff_cbs_init(&s->cbc, AV_CODEC_ID_AV1, avctx);
+ if (ret < 0)
+ return ret;
+
+ if (avctx->extradata && avctx->extradata_size) {
+ ret = ff_cbs_read(s->cbc, &s->current_obu, avctx->extradata,
+ avctx->extradata_size);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_WARNING, "Failed to read extradata.\n");
+ goto end;
+ }
+
+ seq = ((CodedBitstreamAV1Context *)(s->cbc->priv_data))->sequence_header;
+ if (!seq) {
+ av_log(avctx, AV_LOG_WARNING, "No sequence header available.\n");
+ goto end;
+ }
+
+ ret = set_context_with_sequence(avctx, seq);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_WARNING, "Failed to set context.\n");
+ goto end;
+ }
+
+ end:
+ ff_cbs_fragment_reset(&s->current_obu);
+ }
+
+ return ret;
+}
+
+static int av1_frame_alloc(AVCodecContext *avctx, AV1Frame *f)
+{
+ AV1DecContext *s = avctx->priv_data;
+ AV1RawFrameHeader *header= s->raw_frame_header;
+ AVFrame *frame;
+ int ret;
+
+ if ((ret = ff_thread_get_buffer(avctx, &f->tf, AV_GET_BUFFER_FLAG_REF)) < 0)
+ return ret;
+
+ frame = f->tf.f;
+ frame->key_frame =
+ header->frame_type == AV1_FRAME_KEY && header->show_frame == 1;
+
+ switch (header->frame_type) {
+ case AV1_FRAME_KEY:
+ case AV1_FRAME_INTRA_ONLY:
+ frame->pict_type = AV_PICTURE_TYPE_I;
+ break;
+ case AV1_FRAME_INTER:
+ frame->pict_type = AV_PICTURE_TYPE_P;
+ break;
+ case AV1_FRAME_SWITCH:
+ frame->pict_type = AV_PICTURE_TYPE_SP;
+ break;
+ }
+
+ if (avctx->hwaccel) {
+ const AVHWAccel *hwaccel = avctx->hwaccel;
+ if (hwaccel->frame_priv_data_size) {
+ f->hwaccel_priv_buf =
+ av_buffer_allocz(hwaccel->frame_priv_data_size);
+ if (!f->hwaccel_priv_buf)
+ goto fail;
+ f->hwaccel_picture_private = f->hwaccel_priv_buf->data;
+ }
+ }
+ return 0;
+
+fail:
+ av1_frame_unref(avctx, f);
+ return AVERROR(ENOMEM);
+}
+
+static int set_output_frame(AVCodecContext *avctx, AVFrame *frame,
+ AVPacket *pkt, int *got_frame)
+{
+ AV1DecContext *s = avctx->priv_data;
+ AV1RawFrameHeader *header= s->raw_frame_header;
+ AVFrame *srcframe;
+ int ret;
+
+ if (header->show_existing_frame)
+ srcframe = s->ref[header->frame_to_show_map_idx].tf.f;
+ else
+ srcframe = s->cur_frame.tf.f;
+
+ if ((ret = av_frame_ref(frame, srcframe)) < 0) {
+ return ret;
+ }
+
+ frame->pts = pkt->pts;
+ frame->pkt_dts = pkt->dts;
+
+ *got_frame = 1;
+
+ return 0;
+}
+
+static int update_reference_list (AVCodecContext *avctx)
+{
+ AV1DecContext *s = avctx->priv_data;
+ AV1RawFrameHeader *header= s->raw_frame_header;
+ int ret;
+
+ for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) {
+ if (header->refresh_frame_flags & (1 << i)) {
+ if (s->ref[i].tf.f->buf[0])
+ av1_frame_unref(avctx, &s->ref[i]);
+ if ((ret = av1_frame_ref(avctx, &s->ref[i], &s->cur_frame)) < 0) {
+ av_log(avctx, AV_LOG_DEBUG, "Ref frame error:%d.\n", ret);
+ return ret;
+ }
+ }
+ }
+ return 0;
+}
+
+static int get_current_frame(AVCodecContext *avctx)
+{
+ AV1DecContext *s = avctx->priv_data;
+ int ret;
+
+ if (s->cur_frame.tf.f->buf[0])
+ av1_frame_unref(avctx, &s->cur_frame);
+
+ ret = av1_frame_alloc(avctx, &s->cur_frame);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Failed to allocate space for current frame.\n");
+ return ret;
+ }
+
+ ret = init_tile_data(s);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to init tile data.\n");
+ return ret;
+ }
+
+ if (s->raw_frame_header->primary_ref_frame == AV1_PRIMARY_REF_NONE)
+ setup_past_independence(&s->cur_frame);
+ else
+ load_previous_and_update(s);
+
+ global_motion_params(s);
+
+ return ret;
+}
+
+static int av1_decode_frame(AVCodecContext *avctx, void *frame,
+ int *got_frame, AVPacket *pkt)
+{
+ AV1DecContext *s = avctx->priv_data;
+ AV1RawTileGroup *raw_tile_group = NULL;
+ int ret;
+
+ ret = ff_cbs_read_packet(s->cbc, &s->current_obu, pkt);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to read packet.\n");
+ goto end;
+ }
+ av_log(avctx, AV_LOG_DEBUG, "Total obu for this frame:%d.\n",
+ s->current_obu.nb_units);
+
+ for (int i = 0; i < s->current_obu.nb_units; i++) {
+ CodedBitstreamUnit *unit = &s->current_obu.units[i];
+ AV1RawOBU *obu = unit->content;
+ av_log(avctx, AV_LOG_DEBUG, "Obu idx:%d, obu type:%d.\n", i, unit->type);
+
+ switch (unit->type) {
+ case AV1_OBU_SEQUENCE_HEADER:
+ av_buffer_unref(&s->seq_ref);
+ s->seq_ref = av_buffer_ref(unit->content_ref);
+ if (!s->seq_ref)
+ return AVERROR(ENOMEM);
+
+ s->raw_seq = &obu->obu.sequence_header;
+
+ ret = set_context_with_sequence(avctx, s->raw_seq);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to set context.\n");
+ goto end;
+ }
+
+ if (s->pix_fmt == AV_PIX_FMT_NONE) {
+ ret = get_pixel_format(avctx);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Failed to get pixel format.\n");
+ goto end;
+ }
+ }
+
+ if (avctx->hwaccel && avctx->hwaccel->decode_params) {
+ ret = avctx->hwaccel->decode_params(avctx, unit->type, unit->data,
+ unit->data_size);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "HW accel decode params fail.\n");
+ return ret;
+ }
+ }
+ break;
+ case AV1_OBU_REDUNDANT_FRAME_HEADER:
+ if (s->raw_frame_header)
+ break;
+ case AV1_OBU_FRAME:
+ case AV1_OBU_FRAME_HEADER:
+ av_buffer_unref(&s->header_ref);
+ s->header_ref = av_buffer_ref(unit->content_ref);
+ if (!s->header_ref)
+ return AVERROR(ENOMEM);
+
+ if (unit->type == AV1_OBU_FRAME)
+ s->raw_frame_header = &obu->obu.frame.header;
+ else
+ s->raw_frame_header = &obu->obu.frame_header;
+
+ ret = update_context_with_frame_header(avctx, s->raw_frame_header);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_DEBUG,
+ "Update context with frame header fail:%d.\n", ret);
+ goto end;
+ }
+
+ if (s->raw_frame_header->show_existing_frame) {
+ ret = set_output_frame(avctx, frame, pkt, got_frame);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_DEBUG, "Set output frame error:%d.\n",
+ ret);
+ goto end;
+ }
+ goto end;
+ }
+
+ ret = get_current_frame(avctx);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_DEBUG, "Get current frame error:%d.\n",
+ ret);
+ goto end;
+ }
+
+ if (avctx->hwaccel) {
+ ret = avctx->hwaccel->start_frame(avctx, unit->data,
+ unit->data_size);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "HW accel start frame fail.\n");
+ return ret;
+ }
+ }
+ if (unit->type != AV1_OBU_FRAME)
+ break;
+ case AV1_OBU_TILE_GROUP:
+ if (!s->raw_frame_header) {
+ ret = AVERROR_INVALIDDATA;
+ goto end;
+ }
+
+ if (unit->type == AV1_OBU_FRAME)
+ raw_tile_group = &obu->obu.frame.tile_group;
+ else
+ raw_tile_group = &obu->obu.tile_group;
+
+ get_tiles_info(avctx, raw_tile_group);
+
+ if (avctx->hwaccel) {
+ ret = avctx->hwaccel->decode_slice(avctx,
+ raw_tile_group->tile_data.data,
+ raw_tile_group->tile_data.data_size);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR,
+ "HW accel decode slice fail.\n");
+ return ret;
+ }
+ }
+ break;
+ case AV1_OBU_TILE_LIST:
+ case AV1_OBU_TEMPORAL_DELIMITER:
+ case AV1_OBU_PADDING:
+ case AV1_OBU_METADATA:
+ break;
+ default:
+ av_log(avctx, AV_LOG_DEBUG,
+ "Unknow obu type: %d (%zd bits).\n",
+ unit->type, unit->data_size);
+ }
+
+ if (raw_tile_group && (s->tile_num == raw_tile_group->tg_end + 1)) {
+ if (avctx->hwaccel) {
+ ret = avctx->hwaccel->end_frame(avctx);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "HW accel end frame fail.\n");
+ return ret;
+ }
+ }
+
+ ret = update_reference_list(avctx);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to update reference list.\n");
+ return ret;
+ }
+
+ if (s->raw_frame_header->show_frame) {
+ ret = set_output_frame(avctx, frame, pkt, got_frame);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_DEBUG, "Set output frame error:%d.\n",
+ ret);
+ goto end;
+ }
+ }
+ raw_tile_group = NULL;
+ s->raw_frame_header = NULL;
+ }
+ }
+
+end:
+ ff_cbs_fragment_reset(&s->current_obu);
+ return ret;
+}
+
+static void av1_decode_flush(AVCodecContext *avctx)
+{
+ AV1DecContext *s = avctx->priv_data;
+
+ for (int i = 0; i < FF_ARRAY_ELEMS(s->ref); i++)
+ av1_frame_unref(avctx, &s->ref[i]);
+
+ av1_frame_unref(avctx, &s->cur_frame);
+}
+
+AVCodec ff_av1_decoder = {
+ .name = "av1",
+ .long_name = NULL_IF_CONFIG_SMALL("Alliance for Open Media AV1"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_AV1,
+ .priv_data_size = sizeof(AV1DecContext),
+ .init = av1_decode_init,
+ .close = av1_decode_free,
+ .decode = av1_decode_frame,
+ .capabilities = AV_CODEC_CAP_DR1,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
+ FF_CODEC_CAP_INIT_CLEANUP |
+ FF_CODEC_CAP_SETS_PKT_DTS,
+ .flush = av1_decode_flush,
+ .profiles = NULL_IF_CONFIG_SMALL(ff_av1_profiles),
+ .hw_configs = (const AVCodecHWConfigInternal * []) {
+ NULL
+ },
+};
new file mode 100644
@@ -0,0 +1,70 @@
+/*
+ * AV1 video decoder
+ * *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AV1DEC_H
+#define AVCODEC_AV1DEC_H
+
+#include "thread.h"
+#include "cbs.h"
+#include "cbs_av1.h"
+
+typedef struct AV1Frame {
+ ThreadFrame tf;
+
+ AVBufferRef *hwaccel_priv_buf;
+ void *hwaccel_picture_private;
+
+ uint8_t loop_filter_delta_enabled;
+ int8_t loop_filter_ref_deltas[AV1_NUM_REF_FRAMES];
+ int8_t loop_filter_mode_deltas[2];
+ uint8_t gm_type[AV1_NUM_REF_FRAMES];
+ int32_t gm_params[AV1_NUM_REF_FRAMES][6];
+} AV1Frame;
+
+typedef struct TileGroupInfo {
+ uint32_t tile_offset;
+ uint32_t tile_size;
+ uint16_t tile_row;
+ uint16_t tile_column;
+} TileGroupInfo;
+
+typedef struct AV1DecContext {
+ const AVClass *class;
+ AVCodecContext *avctx;
+
+ enum AVPixelFormat pix_fmt;
+ CodedBitstreamContext *cbc;
+ CodedBitstreamFragment current_obu;
+
+ AVBufferRef *seq_ref;
+ AV1RawSequenceHeader *raw_seq;
+ AVBufferRef *header_ref;
+ AV1RawFrameHeader *raw_frame_header;
+ TileGroupInfo *tile_group_info;
+ uint16_t tile_num;
+ uint16_t tg_start;
+ uint16_t tg_end;
+
+ AV1Frame ref[AV1_NUM_REF_FRAMES];
+ AV1Frame cur_frame;
+
+} AV1DecContext;
+
+#endif /* AVCODEC_AV1DEC_H */
@@ -28,7 +28,7 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 58
-#define LIBAVCODEC_VERSION_MINOR 105
+#define LIBAVCODEC_VERSION_MINOR 106
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
This av1 decoder is now only used for av1 hardware acceleration decoder. Consider it can be extend to a local decoder like hevc or vp9 in the future, so define its name as "av1" and put it into external libraries codec list. Signed-off-by: Fei Wang <fei.w.wang@intel.com> --- update: 1. reuse buffer for tile_group_info. 2. set avctx/frame props from sequence and frame header. 3. refine ref/unref for s->seq_ref/s->header_ref. 4. refine av1_decode_frame to reduce duplicated code. Changelog | 1 + configure | 1 + libavcodec/Makefile | 1 + libavcodec/allcodecs.c | 1 + libavcodec/av1dec.c | 860 +++++++++++++++++++++++++++++++++++++++++ libavcodec/av1dec.h | 70 ++++ libavcodec/version.h | 2 +- 7 files changed, 935 insertions(+), 1 deletion(-) create mode 100644 libavcodec/av1dec.c create mode 100644 libavcodec/av1dec.h