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FFmpeg/libavcodec/vaapi_encode.c
Philip Langdale 109515e16d lavc/vaapi_encode: enable 8bit 4:4:4 encoding for HEVC and VP9 
Sufficiently recent Intel hardware is able to do encoding of 8bit 4:4:4
content in HEVC and VP9. The main requirement here is that the frames
must be provided in the AYUV format.

Enabling support is done by adding the appropriate encoding profiles
and noting that AYUV is officially a four channel format with alpha so
we must state that we expect all four channels.
2022-08-09 09:22:49 -07:00

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/*
* 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 "config_components.h"
#include <inttypes.h>
#include <string.h>
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/internal.h"
#include "libavutil/log.h"
#include "libavutil/pixdesc.h"
#include "vaapi_encode.h"
#include "encode.h"
#include "avcodec.h"
const AVCodecHWConfigInternal *const ff_vaapi_encode_hw_configs[] = {
HW_CONFIG_ENCODER_FRAMES(VAAPI, VAAPI),
NULL,
};
static const char * const picture_type_name[] = { "IDR", "I", "P", "B" };
static int vaapi_encode_make_packed_header(AVCodecContext *avctx,
VAAPIEncodePicture *pic,
int type, char *data, size_t bit_len)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAStatus vas;
VABufferID param_buffer, data_buffer;
VABufferID *tmp;
VAEncPackedHeaderParameterBuffer params = {
.type = type,
.bit_length = bit_len,
.has_emulation_bytes = 1,
};
tmp = av_realloc_array(pic->param_buffers, sizeof(*tmp), pic->nb_param_buffers + 2);
if (!tmp)
return AVERROR(ENOMEM);
pic->param_buffers = tmp;
vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
VAEncPackedHeaderParameterBufferType,
sizeof(params), 1, &params, &param_buffer);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to create parameter buffer "
"for packed header (type %d): %d (%s).\n",
type, vas, vaErrorStr(vas));
return AVERROR(EIO);
}
pic->param_buffers[pic->nb_param_buffers++] = param_buffer;
vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
VAEncPackedHeaderDataBufferType,
(bit_len + 7) / 8, 1, data, &data_buffer);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to create data buffer "
"for packed header (type %d): %d (%s).\n",
type, vas, vaErrorStr(vas));
return AVERROR(EIO);
}
pic->param_buffers[pic->nb_param_buffers++] = data_buffer;
av_log(avctx, AV_LOG_DEBUG, "Packed header buffer (%d) is %#x/%#x "
"(%zu bits).\n", type, param_buffer, data_buffer, bit_len);
return 0;
}
static int vaapi_encode_make_param_buffer(AVCodecContext *avctx,
VAAPIEncodePicture *pic,
int type, char *data, size_t len)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAStatus vas;
VABufferID *tmp;
VABufferID buffer;
tmp = av_realloc_array(pic->param_buffers, sizeof(*tmp), pic->nb_param_buffers + 1);
if (!tmp)
return AVERROR(ENOMEM);
pic->param_buffers = tmp;
vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
type, len, 1, data, &buffer);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to create parameter buffer "
"(type %d): %d (%s).\n", type, vas, vaErrorStr(vas));
return AVERROR(EIO);
}
pic->param_buffers[pic->nb_param_buffers++] = buffer;
av_log(avctx, AV_LOG_DEBUG, "Param buffer (%d) is %#x.\n",
type, buffer);
return 0;
}
static int vaapi_encode_make_misc_param_buffer(AVCodecContext *avctx,
VAAPIEncodePicture *pic,
int type,
const void *data, size_t len)
{
// Construct the buffer on the stack - 1KB is much larger than any
// current misc parameter buffer type (the largest is EncQuality at
// 224 bytes).
uint8_t buffer[1024];
VAEncMiscParameterBuffer header = {
.type = type,
};
size_t buffer_size = sizeof(header) + len;
av_assert0(buffer_size <= sizeof(buffer));
memcpy(buffer, &header, sizeof(header));
memcpy(buffer + sizeof(header), data, len);
return vaapi_encode_make_param_buffer(avctx, pic,
VAEncMiscParameterBufferType,
buffer, buffer_size);
}
static int vaapi_encode_wait(AVCodecContext *avctx,
VAAPIEncodePicture *pic)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAStatus vas;
av_assert0(pic->encode_issued);
if (pic->encode_complete) {
// Already waited for this picture.
return 0;
}
av_log(avctx, AV_LOG_DEBUG, "Sync to pic %"PRId64"/%"PRId64" "
"(input surface %#x).\n", pic->display_order,
pic->encode_order, pic->input_surface);
#if VA_CHECK_VERSION(1, 9, 0)
if (ctx->has_sync_buffer_func) {
vas = vaSyncBuffer(ctx->hwctx->display,
pic->output_buffer,
VA_TIMEOUT_INFINITE);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to sync to output buffer completion: "
"%d (%s).\n", vas, vaErrorStr(vas));
return AVERROR(EIO);
}
} else
#endif
{ // If vaSyncBuffer is not implemented, try old version API.
vas = vaSyncSurface(ctx->hwctx->display, pic->input_surface);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to sync to picture completion: "
"%d (%s).\n", vas, vaErrorStr(vas));
return AVERROR(EIO);
}
}
// Input is definitely finished with now.
av_frame_free(&pic->input_image);
pic->encode_complete = 1;
return 0;
}
static int vaapi_encode_make_row_slice(AVCodecContext *avctx,
VAAPIEncodePicture *pic)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeSlice *slice;
int i, rounding;
for (i = 0; i < pic->nb_slices; i++)
pic->slices[i].row_size = ctx->slice_size;
rounding = ctx->slice_block_rows - ctx->nb_slices * ctx->slice_size;
if (rounding > 0) {
// Place rounding error at top and bottom of frame.
av_assert0(rounding < pic->nb_slices);
// Some Intel drivers contain a bug where the encoder will fail
// if the last slice is smaller than the one before it. Since
// that's straightforward to avoid here, just do so.
if (rounding <= 2) {
for (i = 0; i < rounding; i++)
++pic->slices[i].row_size;
} else {
for (i = 0; i < (rounding + 1) / 2; i++)
++pic->slices[pic->nb_slices - i - 1].row_size;
for (i = 0; i < rounding / 2; i++)
++pic->slices[i].row_size;
}
} else if (rounding < 0) {
// Remove rounding error from last slice only.
av_assert0(rounding < ctx->slice_size);
pic->slices[pic->nb_slices - 1].row_size += rounding;
}
for (i = 0; i < pic->nb_slices; i++) {
slice = &pic->slices[i];
slice->index = i;
if (i == 0) {
slice->row_start = 0;
slice->block_start = 0;
} else {
const VAAPIEncodeSlice *prev = &pic->slices[i - 1];
slice->row_start = prev->row_start + prev->row_size;
slice->block_start = prev->block_start + prev->block_size;
}
slice->block_size = slice->row_size * ctx->slice_block_cols;
av_log(avctx, AV_LOG_DEBUG, "Slice %d: %d-%d (%d rows), "
"%d-%d (%d blocks).\n", i, slice->row_start,
slice->row_start + slice->row_size - 1, slice->row_size,
slice->block_start, slice->block_start + slice->block_size - 1,
slice->block_size);
}
return 0;
}
static int vaapi_encode_make_tile_slice(AVCodecContext *avctx,
VAAPIEncodePicture *pic)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeSlice *slice;
int i, j, index;
for (i = 0; i < ctx->tile_cols; i++) {
for (j = 0; j < ctx->tile_rows; j++) {
index = j * ctx->tile_cols + i;
slice = &pic->slices[index];
slice->index = index;
pic->slices[index].block_start = ctx->col_bd[i] +
ctx->row_bd[j] * ctx->slice_block_cols;
pic->slices[index].block_size = ctx->row_height[j] * ctx->col_width[i];
av_log(avctx, AV_LOG_DEBUG, "Slice %2d: (%2d, %2d) start at: %4d "
"width:%2d height:%2d (%d blocks).\n", index, ctx->col_bd[i],
ctx->row_bd[j], slice->block_start, ctx->col_width[i],
ctx->row_height[j], slice->block_size);
}
}
return 0;
}
static int vaapi_encode_issue(AVCodecContext *avctx,
VAAPIEncodePicture *pic)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeSlice *slice;
VAStatus vas;
int err, i;
char data[MAX_PARAM_BUFFER_SIZE];
size_t bit_len;
av_unused AVFrameSideData *sd;
av_log(avctx, AV_LOG_DEBUG, "Issuing encode for pic %"PRId64"/%"PRId64" "
"as type %s.\n", pic->display_order, pic->encode_order,
picture_type_name[pic->type]);
if (pic->nb_refs == 0) {
av_log(avctx, AV_LOG_DEBUG, "No reference pictures.\n");
} else {
av_log(avctx, AV_LOG_DEBUG, "Refers to:");
for (i = 0; i < pic->nb_refs; i++) {
av_log(avctx, AV_LOG_DEBUG, " %"PRId64"/%"PRId64,
pic->refs[i]->display_order, pic->refs[i]->encode_order);
}
av_log(avctx, AV_LOG_DEBUG, ".\n");
}
av_assert0(!pic->encode_issued);
for (i = 0; i < pic->nb_refs; i++) {
av_assert0(pic->refs[i]);
av_assert0(pic->refs[i]->encode_issued);
}
av_log(avctx, AV_LOG_DEBUG, "Input surface is %#x.\n", pic->input_surface);
pic->recon_image = av_frame_alloc();
if (!pic->recon_image) {
err = AVERROR(ENOMEM);
goto fail;
}
err = av_hwframe_get_buffer(ctx->recon_frames_ref, pic->recon_image, 0);
if (err < 0) {
err = AVERROR(ENOMEM);
goto fail;
}
pic->recon_surface = (VASurfaceID)(uintptr_t)pic->recon_image->data[3];
av_log(avctx, AV_LOG_DEBUG, "Recon surface is %#x.\n", pic->recon_surface);
pic->output_buffer_ref = av_buffer_pool_get(ctx->output_buffer_pool);
if (!pic->output_buffer_ref) {
err = AVERROR(ENOMEM);
goto fail;
}
pic->output_buffer = (VABufferID)(uintptr_t)pic->output_buffer_ref->data;
av_log(avctx, AV_LOG_DEBUG, "Output buffer is %#x.\n",
pic->output_buffer);
if (ctx->codec->picture_params_size > 0) {
pic->codec_picture_params = av_malloc(ctx->codec->picture_params_size);
if (!pic->codec_picture_params)
goto fail;
memcpy(pic->codec_picture_params, ctx->codec_picture_params,
ctx->codec->picture_params_size);
} else {
av_assert0(!ctx->codec_picture_params);
}
pic->nb_param_buffers = 0;
if (pic->type == PICTURE_TYPE_IDR && ctx->codec->init_sequence_params) {
err = vaapi_encode_make_param_buffer(avctx, pic,
VAEncSequenceParameterBufferType,
ctx->codec_sequence_params,
ctx->codec->sequence_params_size);
if (err < 0)
goto fail;
}
if (pic->type == PICTURE_TYPE_IDR) {
for (i = 0; i < ctx->nb_global_params; i++) {
err = vaapi_encode_make_misc_param_buffer(avctx, pic,
ctx->global_params_type[i],
ctx->global_params[i],
ctx->global_params_size[i]);
if (err < 0)
goto fail;
}
}
if (ctx->codec->init_picture_params) {
err = ctx->codec->init_picture_params(avctx, pic);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to initialise picture "
"parameters: %d.\n", err);
goto fail;
}
err = vaapi_encode_make_param_buffer(avctx, pic,
VAEncPictureParameterBufferType,
pic->codec_picture_params,
ctx->codec->picture_params_size);
if (err < 0)
goto fail;
}
#if VA_CHECK_VERSION(1, 5, 0)
if (ctx->max_frame_size) {
err = vaapi_encode_make_misc_param_buffer(avctx, pic,
VAEncMiscParameterTypeMaxFrameSize,
&ctx->mfs_params,
sizeof(ctx->mfs_params));
if (err < 0)
goto fail;
}
#endif
if (pic->type == PICTURE_TYPE_IDR) {
if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SEQUENCE &&
ctx->codec->write_sequence_header) {
bit_len = 8 * sizeof(data);
err = ctx->codec->write_sequence_header(avctx, data, &bit_len);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to write per-sequence "
"header: %d.\n", err);
goto fail;
}
err = vaapi_encode_make_packed_header(avctx, pic,
ctx->codec->sequence_header_type,
data, bit_len);
if (err < 0)
goto fail;
}
}
if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_PICTURE &&
ctx->codec->write_picture_header) {
bit_len = 8 * sizeof(data);
err = ctx->codec->write_picture_header(avctx, pic, data, &bit_len);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to write per-picture "
"header: %d.\n", err);
goto fail;
}
err = vaapi_encode_make_packed_header(avctx, pic,
ctx->codec->picture_header_type,
data, bit_len);
if (err < 0)
goto fail;
}
if (ctx->codec->write_extra_buffer) {
for (i = 0;; i++) {
size_t len = sizeof(data);
int type;
err = ctx->codec->write_extra_buffer(avctx, pic, i, &type,
data, &len);
if (err == AVERROR_EOF)
break;
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to write extra "
"buffer %d: %d.\n", i, err);
goto fail;
}
err = vaapi_encode_make_param_buffer(avctx, pic, type,
data, len);
if (err < 0)
goto fail;
}
}
if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_MISC &&
ctx->codec->write_extra_header) {
for (i = 0;; i++) {
int type;
bit_len = 8 * sizeof(data);
err = ctx->codec->write_extra_header(avctx, pic, i, &type,
data, &bit_len);
if (err == AVERROR_EOF)
break;
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to write extra "
"header %d: %d.\n", i, err);
goto fail;
}
err = vaapi_encode_make_packed_header(avctx, pic, type,
data, bit_len);
if (err < 0)
goto fail;
}
}
if (pic->nb_slices == 0)
pic->nb_slices = ctx->nb_slices;
if (pic->nb_slices > 0) {
pic->slices = av_calloc(pic->nb_slices, sizeof(*pic->slices));
if (!pic->slices) {
err = AVERROR(ENOMEM);
goto fail;
}
if (ctx->tile_rows && ctx->tile_cols)
vaapi_encode_make_tile_slice(avctx, pic);
else
vaapi_encode_make_row_slice(avctx, pic);
}
for (i = 0; i < pic->nb_slices; i++) {
slice = &pic->slices[i];
if (ctx->codec->slice_params_size > 0) {
slice->codec_slice_params = av_mallocz(ctx->codec->slice_params_size);
if (!slice->codec_slice_params) {
err = AVERROR(ENOMEM);
goto fail;
}
}
if (ctx->codec->init_slice_params) {
err = ctx->codec->init_slice_params(avctx, pic, slice);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to initialise slice "
"parameters: %d.\n", err);
goto fail;
}
}
if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SLICE &&
ctx->codec->write_slice_header) {
bit_len = 8 * sizeof(data);
err = ctx->codec->write_slice_header(avctx, pic, slice,
data, &bit_len);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to write per-slice "
"header: %d.\n", err);
goto fail;
}
err = vaapi_encode_make_packed_header(avctx, pic,
ctx->codec->slice_header_type,
data, bit_len);
if (err < 0)
goto fail;
}
if (ctx->codec->init_slice_params) {
err = vaapi_encode_make_param_buffer(avctx, pic,
VAEncSliceParameterBufferType,
slice->codec_slice_params,
ctx->codec->slice_params_size);
if (err < 0)
goto fail;
}
}
#if VA_CHECK_VERSION(1, 0, 0)
sd = av_frame_get_side_data(pic->input_image,
AV_FRAME_DATA_REGIONS_OF_INTEREST);
if (sd && ctx->roi_allowed) {
const AVRegionOfInterest *roi;
uint32_t roi_size;
VAEncMiscParameterBufferROI param_roi;
int nb_roi, i, v;
roi = (const AVRegionOfInterest*)sd->data;
roi_size = roi->self_size;
av_assert0(roi_size && sd->size % roi_size == 0);
nb_roi = sd->size / roi_size;
if (nb_roi > ctx->roi_max_regions) {
if (!ctx->roi_warned) {
av_log(avctx, AV_LOG_WARNING, "More ROIs set than "
"supported by driver (%d > %d).\n",
nb_roi, ctx->roi_max_regions);
ctx->roi_warned = 1;
}
nb_roi = ctx->roi_max_regions;
}
pic->roi = av_calloc(nb_roi, sizeof(*pic->roi));
if (!pic->roi) {
err = AVERROR(ENOMEM);
goto fail;
}
// For overlapping regions, the first in the array takes priority.
for (i = 0; i < nb_roi; i++) {
roi = (const AVRegionOfInterest*)(sd->data + roi_size * i);
av_assert0(roi->qoffset.den != 0);
v = roi->qoffset.num * ctx->roi_quant_range / roi->qoffset.den;
av_log(avctx, AV_LOG_DEBUG, "ROI: (%d,%d)-(%d,%d) -> %+d.\n",
roi->top, roi->left, roi->bottom, roi->right, v);
pic->roi[i] = (VAEncROI) {
.roi_rectangle = {
.x = roi->left,
.y = roi->top,
.width = roi->right - roi->left,
.height = roi->bottom - roi->top,
},
.roi_value = av_clip_int8(v),
};
}
param_roi = (VAEncMiscParameterBufferROI) {
.num_roi = nb_roi,
.max_delta_qp = INT8_MAX,
.min_delta_qp = INT8_MIN,
.roi = pic->roi,
.roi_flags.bits.roi_value_is_qp_delta = 1,
};
err = vaapi_encode_make_misc_param_buffer(avctx, pic,
VAEncMiscParameterTypeROI,
&param_roi,
sizeof(param_roi));
if (err < 0)
goto fail;
}
#endif
vas = vaBeginPicture(ctx->hwctx->display, ctx->va_context,
pic->input_surface);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to begin picture encode issue: "
"%d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(EIO);
goto fail_with_picture;
}
vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
pic->param_buffers, pic->nb_param_buffers);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to upload encode parameters: "
"%d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(EIO);
goto fail_with_picture;
}
vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to end picture encode issue: "
"%d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(EIO);
// vaRenderPicture() has been called here, so we should not destroy
// the parameter buffers unless separate destruction is required.
if (CONFIG_VAAPI_1 || ctx->hwctx->driver_quirks &
AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS)
goto fail;
else
goto fail_at_end;
}
if (CONFIG_VAAPI_1 || ctx->hwctx->driver_quirks &
AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS) {
for (i = 0; i < pic->nb_param_buffers; i++) {
vas = vaDestroyBuffer(ctx->hwctx->display,
pic->param_buffers[i]);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to destroy "
"param buffer %#x: %d (%s).\n",
pic->param_buffers[i], vas, vaErrorStr(vas));
// And ignore.
}
}
}
pic->encode_issued = 1;
return 0;
fail_with_picture:
vaEndPicture(ctx->hwctx->display, ctx->va_context);
fail:
for(i = 0; i < pic->nb_param_buffers; i++)
vaDestroyBuffer(ctx->hwctx->display, pic->param_buffers[i]);
if (pic->slices) {
for (i = 0; i < pic->nb_slices; i++)
av_freep(&pic->slices[i].codec_slice_params);
}
fail_at_end:
av_freep(&pic->codec_picture_params);
av_freep(&pic->param_buffers);
av_freep(&pic->slices);
av_freep(&pic->roi);
av_frame_free(&pic->recon_image);
av_buffer_unref(&pic->output_buffer_ref);
pic->output_buffer = VA_INVALID_ID;
return err;
}
static int vaapi_encode_output(AVCodecContext *avctx,
VAAPIEncodePicture *pic, AVPacket *pkt)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VACodedBufferSegment *buf_list, *buf;
VAStatus vas;
int total_size = 0;
uint8_t *ptr;
int err;
err = vaapi_encode_wait(avctx, pic);
if (err < 0)
return err;
buf_list = NULL;
vas = vaMapBuffer(ctx->hwctx->display, pic->output_buffer,
(void**)&buf_list);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to map output buffers: "
"%d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(EIO);
goto fail;
}
for (buf = buf_list; buf; buf = buf->next)
total_size += buf->size;
err = ff_get_encode_buffer(avctx, pkt, total_size, 0);
ptr = pkt->data;
if (err < 0)
goto fail_mapped;
for (buf = buf_list; buf; buf = buf->next) {
av_log(avctx, AV_LOG_DEBUG, "Output buffer: %u bytes "
"(status %08x).\n", buf->size, buf->status);
memcpy(ptr, buf->buf, buf->size);
ptr += buf->size;
}
if (pic->type == PICTURE_TYPE_IDR)
pkt->flags |= AV_PKT_FLAG_KEY;
pkt->pts = pic->pts;
vas = vaUnmapBuffer(ctx->hwctx->display, pic->output_buffer);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to unmap output buffers: "
"%d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(EIO);
goto fail;
}
av_buffer_unref(&pic->output_buffer_ref);
pic->output_buffer = VA_INVALID_ID;
av_log(avctx, AV_LOG_DEBUG, "Output read for pic %"PRId64"/%"PRId64".\n",
pic->display_order, pic->encode_order);
return 0;
fail_mapped:
vaUnmapBuffer(ctx->hwctx->display, pic->output_buffer);
fail:
av_buffer_unref(&pic->output_buffer_ref);
pic->output_buffer = VA_INVALID_ID;
return err;
}
static int vaapi_encode_discard(AVCodecContext *avctx,
VAAPIEncodePicture *pic)
{
vaapi_encode_wait(avctx, pic);
if (pic->output_buffer_ref) {
av_log(avctx, AV_LOG_DEBUG, "Discard output for pic "
"%"PRId64"/%"PRId64".\n",
pic->display_order, pic->encode_order);
av_buffer_unref(&pic->output_buffer_ref);
pic->output_buffer = VA_INVALID_ID;
}
return 0;
}
static VAAPIEncodePicture *vaapi_encode_alloc(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic;
pic = av_mallocz(sizeof(*pic));
if (!pic)
return NULL;
if (ctx->codec->picture_priv_data_size > 0) {
pic->priv_data = av_mallocz(ctx->codec->picture_priv_data_size);
if (!pic->priv_data) {
av_freep(&pic);
return NULL;
}
}
pic->input_surface = VA_INVALID_ID;
pic->recon_surface = VA_INVALID_ID;
pic->output_buffer = VA_INVALID_ID;
return pic;
}
static int vaapi_encode_free(AVCodecContext *avctx,
VAAPIEncodePicture *pic)
{
int i;
if (pic->encode_issued)
vaapi_encode_discard(avctx, pic);
if (pic->slices) {
for (i = 0; i < pic->nb_slices; i++)
av_freep(&pic->slices[i].codec_slice_params);
}
av_freep(&pic->codec_picture_params);
av_frame_free(&pic->input_image);
av_frame_free(&pic->recon_image);
av_freep(&pic->param_buffers);
av_freep(&pic->slices);
// Output buffer should already be destroyed.
av_assert0(pic->output_buffer == VA_INVALID_ID);
av_freep(&pic->priv_data);
av_freep(&pic->codec_picture_params);
av_freep(&pic->roi);
av_free(pic);
return 0;
}
static void vaapi_encode_add_ref(AVCodecContext *avctx,
VAAPIEncodePicture *pic,
VAAPIEncodePicture *target,
int is_ref, int in_dpb, int prev)
{
int refs = 0;
if (is_ref) {
av_assert0(pic != target);
av_assert0(pic->nb_refs < MAX_PICTURE_REFERENCES);
pic->refs[pic->nb_refs++] = target;
++refs;
}
if (in_dpb) {
av_assert0(pic->nb_dpb_pics < MAX_DPB_SIZE);
pic->dpb[pic->nb_dpb_pics++] = target;
++refs;
}
if (prev) {
av_assert0(!pic->prev);
pic->prev = target;
++refs;
}
target->ref_count[0] += refs;
target->ref_count[1] += refs;
}
static void vaapi_encode_remove_refs(AVCodecContext *avctx,
VAAPIEncodePicture *pic,
int level)
{
int i;
if (pic->ref_removed[level])
return;
for (i = 0; i < pic->nb_refs; i++) {
av_assert0(pic->refs[i]);
--pic->refs[i]->ref_count[level];
av_assert0(pic->refs[i]->ref_count[level] >= 0);
}
for (i = 0; i < pic->nb_dpb_pics; i++) {
av_assert0(pic->dpb[i]);
--pic->dpb[i]->ref_count[level];
av_assert0(pic->dpb[i]->ref_count[level] >= 0);
}
av_assert0(pic->prev || pic->type == PICTURE_TYPE_IDR);
if (pic->prev) {
--pic->prev->ref_count[level];
av_assert0(pic->prev->ref_count[level] >= 0);
}
pic->ref_removed[level] = 1;
}
static void vaapi_encode_set_b_pictures(AVCodecContext *avctx,
VAAPIEncodePicture *start,
VAAPIEncodePicture *end,
VAAPIEncodePicture *prev,
int current_depth,
VAAPIEncodePicture **last)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic, *next, *ref;
int i, len;
av_assert0(start && end && start != end && start->next != end);
// If we are at the maximum depth then encode all pictures as
// non-referenced B-pictures. Also do this if there is exactly one
// picture left, since there will be nothing to reference it.
if (current_depth == ctx->max_b_depth || start->next->next == end) {
for (pic = start->next; pic; pic = pic->next) {
if (pic == end)
break;
pic->type = PICTURE_TYPE_B;
pic->b_depth = current_depth;
vaapi_encode_add_ref(avctx, pic, start, 1, 1, 0);
vaapi_encode_add_ref(avctx, pic, end, 1, 1, 0);
vaapi_encode_add_ref(avctx, pic, prev, 0, 0, 1);
for (ref = end->refs[1]; ref; ref = ref->refs[1])
vaapi_encode_add_ref(avctx, pic, ref, 0, 1, 0);
}
*last = prev;
} else {
// Split the current list at the midpoint with a referenced
// B-picture, then descend into each side separately.
len = 0;
for (pic = start->next; pic != end; pic = pic->next)
++len;
for (pic = start->next, i = 1; 2 * i < len; pic = pic->next, i++);
pic->type = PICTURE_TYPE_B;
pic->b_depth = current_depth;
pic->is_reference = 1;
vaapi_encode_add_ref(avctx, pic, pic, 0, 1, 0);
vaapi_encode_add_ref(avctx, pic, start, 1, 1, 0);
vaapi_encode_add_ref(avctx, pic, end, 1, 1, 0);
vaapi_encode_add_ref(avctx, pic, prev, 0, 0, 1);
for (ref = end->refs[1]; ref; ref = ref->refs[1])
vaapi_encode_add_ref(avctx, pic, ref, 0, 1, 0);
if (i > 1)
vaapi_encode_set_b_pictures(avctx, start, pic, pic,
current_depth + 1, &next);
else
next = pic;
vaapi_encode_set_b_pictures(avctx, pic, end, next,
current_depth + 1, last);
}
}
static int vaapi_encode_pick_next(AVCodecContext *avctx,
VAAPIEncodePicture **pic_out)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic = NULL, *next, *start;
int i, b_counter, closed_gop_end;
// If there are any B-frames already queued, the next one to encode
// is the earliest not-yet-issued frame for which all references are
// available.
for (pic = ctx->pic_start; pic; pic = pic->next) {
if (pic->encode_issued)
continue;
if (pic->type != PICTURE_TYPE_B)
continue;
for (i = 0; i < pic->nb_refs; i++) {
if (!pic->refs[i]->encode_issued)
break;
}
if (i == pic->nb_refs)
break;
}
if (pic) {
av_log(avctx, AV_LOG_DEBUG, "Pick B-picture at depth %d to "
"encode next.\n", pic->b_depth);
*pic_out = pic;
return 0;
}
// Find the B-per-Pth available picture to become the next picture
// on the top layer.
start = NULL;
b_counter = 0;
closed_gop_end = ctx->closed_gop ||
ctx->idr_counter == ctx->gop_per_idr;
for (pic = ctx->pic_start; pic; pic = next) {
next = pic->next;
if (pic->encode_issued) {
start = pic;
continue;
}
// If the next available picture is force-IDR, encode it to start
// a new GOP immediately.
if (pic->force_idr)
break;
if (b_counter == ctx->b_per_p)
break;
// If this picture ends a closed GOP or starts a new GOP then it
// needs to be in the top layer.
if (ctx->gop_counter + b_counter + closed_gop_end >= ctx->gop_size)
break;
// If the picture after this one is force-IDR, we need to encode
// this one in the top layer.
if (next && next->force_idr)
break;
++b_counter;
}
// At the end of the stream the last picture must be in the top layer.
if (!pic && ctx->end_of_stream) {
--b_counter;
pic = ctx->pic_end;
if (pic->encode_complete)
return AVERROR_EOF;
else if (pic->encode_issued)
return AVERROR(EAGAIN);
}
if (!pic) {
av_log(avctx, AV_LOG_DEBUG, "Pick nothing to encode next - "
"need more input for reference pictures.\n");
return AVERROR(EAGAIN);
}
if (ctx->input_order <= ctx->decode_delay && !ctx->end_of_stream) {
av_log(avctx, AV_LOG_DEBUG, "Pick nothing to encode next - "
"need more input for timestamps.\n");
return AVERROR(EAGAIN);
}
if (pic->force_idr) {
av_log(avctx, AV_LOG_DEBUG, "Pick forced IDR-picture to "
"encode next.\n");
pic->type = PICTURE_TYPE_IDR;
ctx->idr_counter = 1;
ctx->gop_counter = 1;
} else if (ctx->gop_counter + b_counter >= ctx->gop_size) {
if (ctx->idr_counter == ctx->gop_per_idr) {
av_log(avctx, AV_LOG_DEBUG, "Pick new-GOP IDR-picture to "
"encode next.\n");
pic->type = PICTURE_TYPE_IDR;
ctx->idr_counter = 1;
} else {
av_log(avctx, AV_LOG_DEBUG, "Pick new-GOP I-picture to "
"encode next.\n");
pic->type = PICTURE_TYPE_I;
++ctx->idr_counter;
}
ctx->gop_counter = 1;
} else {
if (ctx->gop_counter + b_counter + closed_gop_end == ctx->gop_size) {
av_log(avctx, AV_LOG_DEBUG, "Pick group-end P-picture to "
"encode next.\n");
} else {
av_log(avctx, AV_LOG_DEBUG, "Pick normal P-picture to "
"encode next.\n");
}
pic->type = PICTURE_TYPE_P;
av_assert0(start);
ctx->gop_counter += 1 + b_counter;
}
pic->is_reference = 1;
*pic_out = pic;
vaapi_encode_add_ref(avctx, pic, pic, 0, 1, 0);
if (pic->type != PICTURE_TYPE_IDR) {
vaapi_encode_add_ref(avctx, pic, start,
pic->type == PICTURE_TYPE_P,
b_counter > 0, 0);
vaapi_encode_add_ref(avctx, pic, ctx->next_prev, 0, 0, 1);
}
if (ctx->next_prev)
--ctx->next_prev->ref_count[0];
if (b_counter > 0) {
vaapi_encode_set_b_pictures(avctx, start, pic, pic, 1,
&ctx->next_prev);
} else {
ctx->next_prev = pic;
}
++ctx->next_prev->ref_count[0];
return 0;
}
static int vaapi_encode_clear_old(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic, *prev, *next;
av_assert0(ctx->pic_start);
// Remove direct references once each picture is complete.
for (pic = ctx->pic_start; pic; pic = pic->next) {
if (pic->encode_complete && pic->next)
vaapi_encode_remove_refs(avctx, pic, 0);
}
// Remove indirect references once a picture has no direct references.
for (pic = ctx->pic_start; pic; pic = pic->next) {
if (pic->encode_complete && pic->ref_count[0] == 0)
vaapi_encode_remove_refs(avctx, pic, 1);
}
// Clear out all complete pictures with no remaining references.
prev = NULL;
for (pic = ctx->pic_start; pic; pic = next) {
next = pic->next;
if (pic->encode_complete && pic->ref_count[1] == 0) {
av_assert0(pic->ref_removed[0] && pic->ref_removed[1]);
if (prev)
prev->next = next;
else
ctx->pic_start = next;
vaapi_encode_free(avctx, pic);
} else {
prev = pic;
}
}
return 0;
}
static int vaapi_encode_check_frame(AVCodecContext *avctx,
const AVFrame *frame)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
if ((frame->crop_top || frame->crop_bottom ||
frame->crop_left || frame->crop_right) && !ctx->crop_warned) {
av_log(avctx, AV_LOG_WARNING, "Cropping information on input "
"frames ignored due to lack of API support.\n");
ctx->crop_warned = 1;
}
if (!ctx->roi_allowed) {
AVFrameSideData *sd =
av_frame_get_side_data(frame, AV_FRAME_DATA_REGIONS_OF_INTEREST);
if (sd && !ctx->roi_warned) {
av_log(avctx, AV_LOG_WARNING, "ROI side data on input "
"frames ignored due to lack of driver support.\n");
ctx->roi_warned = 1;
}
}
return 0;
}
static int vaapi_encode_send_frame(AVCodecContext *avctx, AVFrame *frame)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic;
int err;
if (frame) {
av_log(avctx, AV_LOG_DEBUG, "Input frame: %ux%u (%"PRId64").\n",
frame->width, frame->height, frame->pts);
err = vaapi_encode_check_frame(avctx, frame);
if (err < 0)
return err;
pic = vaapi_encode_alloc(avctx);
if (!pic)
return AVERROR(ENOMEM);
pic->input_image = av_frame_alloc();
if (!pic->input_image) {
err = AVERROR(ENOMEM);
goto fail;
}
if (ctx->input_order == 0 || frame->pict_type == AV_PICTURE_TYPE_I)
pic->force_idr = 1;
pic->input_surface = (VASurfaceID)(uintptr_t)frame->data[3];
pic->pts = frame->pts;
av_frame_move_ref(pic->input_image, frame);
if (ctx->input_order == 0)
ctx->first_pts = pic->pts;
if (ctx->input_order == ctx->decode_delay)
ctx->dts_pts_diff = pic->pts - ctx->first_pts;
if (ctx->output_delay > 0)
ctx->ts_ring[ctx->input_order %
(3 * ctx->output_delay + ctx->async_depth)] = pic->pts;
pic->display_order = ctx->input_order;
++ctx->input_order;
if (ctx->pic_start) {
ctx->pic_end->next = pic;
ctx->pic_end = pic;
} else {
ctx->pic_start = pic;
ctx->pic_end = pic;
}
} else {
ctx->end_of_stream = 1;
// Fix timestamps if we hit end-of-stream before the initial decode
// delay has elapsed.
if (ctx->input_order < ctx->decode_delay)
ctx->dts_pts_diff = ctx->pic_end->pts - ctx->first_pts;
}
return 0;
fail:
vaapi_encode_free(avctx, pic);
return err;
}
int ff_vaapi_encode_receive_packet(AVCodecContext *avctx, AVPacket *pkt)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic;
AVFrame *frame = ctx->frame;
int err;
err = ff_encode_get_frame(avctx, frame);
if (err < 0 && err != AVERROR_EOF)
return err;
if (err == AVERROR_EOF)
frame = NULL;
err = vaapi_encode_send_frame(avctx, frame);
if (err < 0)
return err;
if (!ctx->pic_start) {
if (ctx->end_of_stream)
return AVERROR_EOF;
else
return AVERROR(EAGAIN);
}
if (ctx->has_sync_buffer_func) {
pic = NULL;
if (av_fifo_can_write(ctx->encode_fifo)) {
err = vaapi_encode_pick_next(avctx, &pic);
if (!err) {
av_assert0(pic);
pic->encode_order = ctx->encode_order +
av_fifo_can_read(ctx->encode_fifo);
err = vaapi_encode_issue(avctx, pic);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Encode failed: %d.\n", err);
return err;
}
av_fifo_write(ctx->encode_fifo, &pic, 1);
}
}
if (!av_fifo_can_read(ctx->encode_fifo))
return err;
// More frames can be buffered
if (av_fifo_can_write(ctx->encode_fifo) && !ctx->end_of_stream)
return AVERROR(EAGAIN);
av_fifo_read(ctx->encode_fifo, &pic, 1);
ctx->encode_order = pic->encode_order + 1;
} else {
pic = NULL;
err = vaapi_encode_pick_next(avctx, &pic);
if (err < 0)
return err;
av_assert0(pic);
pic->encode_order = ctx->encode_order++;
err = vaapi_encode_issue(avctx, pic);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Encode failed: %d.\n", err);
return err;
}
}
err = vaapi_encode_output(avctx, pic, pkt);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Output failed: %d.\n", err);
return err;
}
if (ctx->output_delay == 0) {
pkt->dts = pkt->pts;
} else if (pic->encode_order < ctx->decode_delay) {
if (ctx->ts_ring[pic->encode_order] < INT64_MIN + ctx->dts_pts_diff)
pkt->dts = INT64_MIN;
else
pkt->dts = ctx->ts_ring[pic->encode_order] - ctx->dts_pts_diff;
} else {
pkt->dts = ctx->ts_ring[(pic->encode_order - ctx->decode_delay) %
(3 * ctx->output_delay + ctx->async_depth)];
}
av_log(avctx, AV_LOG_DEBUG, "Output packet: pts %"PRId64" dts %"PRId64".\n",
pkt->pts, pkt->dts);
ctx->output_order = pic->encode_order;
vaapi_encode_clear_old(avctx);
return 0;
}
static av_cold void vaapi_encode_add_global_param(AVCodecContext *avctx, int type,
void *buffer, size_t size)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
av_assert0(ctx->nb_global_params < MAX_GLOBAL_PARAMS);
ctx->global_params_type[ctx->nb_global_params] = type;
ctx->global_params [ctx->nb_global_params] = buffer;
ctx->global_params_size[ctx->nb_global_params] = size;
++ctx->nb_global_params;
}
typedef struct VAAPIEncodeRTFormat {
const char *name;
unsigned int value;
int depth;
int nb_components;
int log2_chroma_w;
int log2_chroma_h;
} VAAPIEncodeRTFormat;
static const VAAPIEncodeRTFormat vaapi_encode_rt_formats[] = {
{ "YUV400", VA_RT_FORMAT_YUV400, 8, 1, },
{ "YUV420", VA_RT_FORMAT_YUV420, 8, 3, 1, 1 },
{ "YUV422", VA_RT_FORMAT_YUV422, 8, 3, 1, 0 },
#if VA_CHECK_VERSION(1, 2, 0)
{ "YUV422_10", VA_RT_FORMAT_YUV422_10, 10, 3, 1, 0 },
#endif
{ "YUV444", VA_RT_FORMAT_YUV444, 8, 3, 0, 0 },
{ "AYUV", VA_RT_FORMAT_YUV444, 8, 4, 0, 0 },
{ "YUV411", VA_RT_FORMAT_YUV411, 8, 3, 2, 0 },
#if VA_CHECK_VERSION(0, 38, 1)
{ "YUV420_10", VA_RT_FORMAT_YUV420_10BPP, 10, 3, 1, 1 },
#endif
};
static const VAEntrypoint vaapi_encode_entrypoints_normal[] = {
VAEntrypointEncSlice,
VAEntrypointEncPicture,
#if VA_CHECK_VERSION(0, 39, 2)
VAEntrypointEncSliceLP,
#endif
0
};
#if VA_CHECK_VERSION(0, 39, 2)
static const VAEntrypoint vaapi_encode_entrypoints_low_power[] = {
VAEntrypointEncSliceLP,
0
};
#endif
static av_cold int vaapi_encode_profile_entrypoint(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAProfile *va_profiles = NULL;
VAEntrypoint *va_entrypoints = NULL;
VAStatus vas;
const VAEntrypoint *usable_entrypoints;
const VAAPIEncodeProfile *profile;
const AVPixFmtDescriptor *desc;
VAConfigAttrib rt_format_attr;
const VAAPIEncodeRTFormat *rt_format;
const char *profile_string, *entrypoint_string;
int i, j, n, depth, err;
if (ctx->low_power) {
#if VA_CHECK_VERSION(0, 39, 2)
usable_entrypoints = vaapi_encode_entrypoints_low_power;
#else
av_log(avctx, AV_LOG_ERROR, "Low-power encoding is not "
"supported with this VAAPI version.\n");
return AVERROR(EINVAL);
#endif
} else {
usable_entrypoints = vaapi_encode_entrypoints_normal;
}
desc = av_pix_fmt_desc_get(ctx->input_frames->sw_format);
if (!desc) {
av_log(avctx, AV_LOG_ERROR, "Invalid input pixfmt (%d).\n",
ctx->input_frames->sw_format);
return AVERROR(EINVAL);
}
depth = desc->comp[0].depth;
for (i = 1; i < desc->nb_components; i++) {
if (desc->comp[i].depth != depth) {
av_log(avctx, AV_LOG_ERROR, "Invalid input pixfmt (%s).\n",
desc->name);
return AVERROR(EINVAL);
}
}
av_log(avctx, AV_LOG_VERBOSE, "Input surface format is %s.\n",
desc->name);
n = vaMaxNumProfiles(ctx->hwctx->display);
va_profiles = av_malloc_array(n, sizeof(VAProfile));
if (!va_profiles) {
err = AVERROR(ENOMEM);
goto fail;
}
vas = vaQueryConfigProfiles(ctx->hwctx->display, va_profiles, &n);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query profiles: %d (%s).\n",
vas, vaErrorStr(vas));
err = AVERROR_EXTERNAL;
goto fail;
}
av_assert0(ctx->codec->profiles);
for (i = 0; (ctx->codec->profiles[i].av_profile !=
FF_PROFILE_UNKNOWN); i++) {
profile = &ctx->codec->profiles[i];
if (depth != profile->depth ||
desc->nb_components != profile->nb_components)
continue;
if (desc->nb_components > 1 &&
(desc->log2_chroma_w != profile->log2_chroma_w ||
desc->log2_chroma_h != profile->log2_chroma_h))
continue;
if (avctx->profile != profile->av_profile &&
avctx->profile != FF_PROFILE_UNKNOWN)
continue;
#if VA_CHECK_VERSION(1, 0, 0)
profile_string = vaProfileStr(profile->va_profile);
#else
profile_string = "(no profile names)";
#endif
for (j = 0; j < n; j++) {
if (va_profiles[j] == profile->va_profile)
break;
}
if (j >= n) {
av_log(avctx, AV_LOG_VERBOSE, "Compatible profile %s (%d) "
"is not supported by driver.\n", profile_string,
profile->va_profile);
continue;
}
ctx->profile = profile;
break;
}
if (!ctx->profile) {
av_log(avctx, AV_LOG_ERROR, "No usable encoding profile found.\n");
err = AVERROR(ENOSYS);
goto fail;
}
avctx->profile = profile->av_profile;
ctx->va_profile = profile->va_profile;
av_log(avctx, AV_LOG_VERBOSE, "Using VAAPI profile %s (%d).\n",
profile_string, ctx->va_profile);
n = vaMaxNumEntrypoints(ctx->hwctx->display);
va_entrypoints = av_malloc_array(n, sizeof(VAEntrypoint));
if (!va_entrypoints) {
err = AVERROR(ENOMEM);
goto fail;
}
vas = vaQueryConfigEntrypoints(ctx->hwctx->display, ctx->va_profile,
va_entrypoints, &n);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query entrypoints for "
"profile %s (%d): %d (%s).\n", profile_string,
ctx->va_profile, vas, vaErrorStr(vas));
err = AVERROR_EXTERNAL;
goto fail;
}
for (i = 0; i < n; i++) {
for (j = 0; usable_entrypoints[j]; j++) {
if (va_entrypoints[i] == usable_entrypoints[j])
break;
}
if (usable_entrypoints[j])
break;
}
if (i >= n) {
av_log(avctx, AV_LOG_ERROR, "No usable encoding entrypoint found "
"for profile %s (%d).\n", profile_string, ctx->va_profile);
err = AVERROR(ENOSYS);
goto fail;
}
ctx->va_entrypoint = va_entrypoints[i];
#if VA_CHECK_VERSION(1, 0, 0)
entrypoint_string = vaEntrypointStr(ctx->va_entrypoint);
#else
entrypoint_string = "(no entrypoint names)";
#endif
av_log(avctx, AV_LOG_VERBOSE, "Using VAAPI entrypoint %s (%d).\n",
entrypoint_string, ctx->va_entrypoint);
for (i = 0; i < FF_ARRAY_ELEMS(vaapi_encode_rt_formats); i++) {
rt_format = &vaapi_encode_rt_formats[i];
if (rt_format->depth == depth &&
rt_format->nb_components == profile->nb_components &&
rt_format->log2_chroma_w == profile->log2_chroma_w &&
rt_format->log2_chroma_h == profile->log2_chroma_h)
break;
}
if (i >= FF_ARRAY_ELEMS(vaapi_encode_rt_formats)) {
av_log(avctx, AV_LOG_ERROR, "No usable render target format "
"found for profile %s (%d) entrypoint %s (%d).\n",
profile_string, ctx->va_profile,
entrypoint_string, ctx->va_entrypoint);
err = AVERROR(ENOSYS);
goto fail;
}
rt_format_attr = (VAConfigAttrib) { VAConfigAttribRTFormat };
vas = vaGetConfigAttributes(ctx->hwctx->display,
ctx->va_profile, ctx->va_entrypoint,
&rt_format_attr, 1);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query RT format "
"config attribute: %d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR_EXTERNAL;
goto fail;
}
if (rt_format_attr.value == VA_ATTRIB_NOT_SUPPORTED) {
av_log(avctx, AV_LOG_VERBOSE, "RT format config attribute not "
"supported by driver: assuming surface RT format %s "
"is valid.\n", rt_format->name);
} else if (!(rt_format_attr.value & rt_format->value)) {
av_log(avctx, AV_LOG_ERROR, "Surface RT format %s not supported "
"by driver for encoding profile %s (%d) entrypoint %s (%d).\n",
rt_format->name, profile_string, ctx->va_profile,
entrypoint_string, ctx->va_entrypoint);
err = AVERROR(ENOSYS);
goto fail;
} else {
av_log(avctx, AV_LOG_VERBOSE, "Using VAAPI render target "
"format %s (%#x).\n", rt_format->name, rt_format->value);
ctx->config_attributes[ctx->nb_config_attributes++] =
(VAConfigAttrib) {
.type = VAConfigAttribRTFormat,
.value = rt_format->value,
};
}
err = 0;
fail:
av_freep(&va_profiles);
av_freep(&va_entrypoints);
return err;
}
static const VAAPIEncodeRCMode vaapi_encode_rc_modes[] = {
// Bitrate Quality
// | Maxrate | HRD/VBV
{ 0 }, // | | | |
{ RC_MODE_CQP, "CQP", 1, VA_RC_CQP, 0, 0, 1, 0 },
{ RC_MODE_CBR, "CBR", 1, VA_RC_CBR, 1, 0, 0, 1 },
{ RC_MODE_VBR, "VBR", 1, VA_RC_VBR, 1, 1, 0, 1 },
#if VA_CHECK_VERSION(1, 1, 0)
{ RC_MODE_ICQ, "ICQ", 1, VA_RC_ICQ, 0, 0, 1, 0 },
#else
{ RC_MODE_ICQ, "ICQ", 0 },
#endif
#if VA_CHECK_VERSION(1, 3, 0)
{ RC_MODE_QVBR, "QVBR", 1, VA_RC_QVBR, 1, 1, 1, 1 },
{ RC_MODE_AVBR, "AVBR", 0, VA_RC_AVBR, 1, 0, 0, 0 },
#else
{ RC_MODE_QVBR, "QVBR", 0 },
{ RC_MODE_AVBR, "AVBR", 0 },
#endif
};
static av_cold int vaapi_encode_init_rate_control(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
uint32_t supported_va_rc_modes;
const VAAPIEncodeRCMode *rc_mode;
int64_t rc_bits_per_second;
int rc_target_percentage;
int rc_window_size;
int rc_quality;
int64_t hrd_buffer_size;
int64_t hrd_initial_buffer_fullness;
int fr_num, fr_den;
VAConfigAttrib rc_attr = { VAConfigAttribRateControl };
VAStatus vas;
char supported_rc_modes_string[64];
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 (rc_attr.value == VA_ATTRIB_NOT_SUPPORTED) {
av_log(avctx, AV_LOG_VERBOSE, "Driver does not report any "
"supported rate control modes: assuming CQP only.\n");
supported_va_rc_modes = VA_RC_CQP;
strcpy(supported_rc_modes_string, "unknown");
} else {
char *str = supported_rc_modes_string;
size_t len = sizeof(supported_rc_modes_string);
int i, first = 1, res;
supported_va_rc_modes = rc_attr.value;
for (i = 0; i < FF_ARRAY_ELEMS(vaapi_encode_rc_modes); i++) {
rc_mode = &vaapi_encode_rc_modes[i];
if (supported_va_rc_modes & rc_mode->va_mode) {
res = snprintf(str, len, "%s%s",
first ? "" : ", ", rc_mode->name);
first = 0;
if (res < 0) {
*str = 0;
break;
}
len -= res;
str += res;
if (len == 0)
break;
}
}
av_log(avctx, AV_LOG_DEBUG, "Driver supports RC modes %s.\n",
supported_rc_modes_string);
}
// Rate control mode selection:
// * If the user has set a mode explicitly with the rc_mode option,
// use it and fail if it is not available.
// * If an explicit QP option has been set, use CQP.
// * If the codec is CQ-only, use CQP.
// * If the QSCALE avcodec option is set, use CQP.
// * If bitrate and quality are both set, try QVBR.
// * If quality is set, try ICQ, then CQP.
// * If bitrate and maxrate are set and have the same value, try CBR.
// * If a bitrate is set, try AVBR, then VBR, then CBR.
// * If no bitrate is set, try ICQ, then CQP.
#define TRY_RC_MODE(mode, fail) do { \
rc_mode = &vaapi_encode_rc_modes[mode]; \
if (!(rc_mode->va_mode & supported_va_rc_modes)) { \
if (fail) { \
av_log(avctx, AV_LOG_ERROR, "Driver does not support %s " \
"RC mode (supported modes: %s).\n", rc_mode->name, \
supported_rc_modes_string); \
return AVERROR(EINVAL); \
} \
av_log(avctx, AV_LOG_DEBUG, "Driver does not support %s " \
"RC mode.\n", rc_mode->name); \
rc_mode = NULL; \
} else { \
goto rc_mode_found; \
} \
} while (0)
if (ctx->explicit_rc_mode)
TRY_RC_MODE(ctx->explicit_rc_mode, 1);
if (ctx->explicit_qp)
TRY_RC_MODE(RC_MODE_CQP, 1);
if (ctx->codec->flags & FLAG_CONSTANT_QUALITY_ONLY)
TRY_RC_MODE(RC_MODE_CQP, 1);
if (avctx->flags & AV_CODEC_FLAG_QSCALE)
TRY_RC_MODE(RC_MODE_CQP, 1);
if (avctx->bit_rate > 0 && avctx->global_quality > 0)
TRY_RC_MODE(RC_MODE_QVBR, 0);
if (avctx->global_quality > 0) {
TRY_RC_MODE(RC_MODE_ICQ, 0);
TRY_RC_MODE(RC_MODE_CQP, 0);
}
if (avctx->bit_rate > 0 && avctx->rc_max_rate == avctx->bit_rate)
TRY_RC_MODE(RC_MODE_CBR, 0);
if (avctx->bit_rate > 0) {
TRY_RC_MODE(RC_MODE_AVBR, 0);
TRY_RC_MODE(RC_MODE_VBR, 0);
TRY_RC_MODE(RC_MODE_CBR, 0);
} else {
TRY_RC_MODE(RC_MODE_ICQ, 0);
TRY_RC_MODE(RC_MODE_CQP, 0);
}
av_log(avctx, AV_LOG_ERROR, "Driver does not support any "
"RC mode compatible with selected options "
"(supported modes: %s).\n", supported_rc_modes_string);
return AVERROR(EINVAL);
rc_mode_found:
if (rc_mode->bitrate) {
if (avctx->bit_rate <= 0) {
av_log(avctx, AV_LOG_ERROR, "Bitrate must be set for %s "
"RC mode.\n", rc_mode->name);
return AVERROR(EINVAL);
}
if (rc_mode->mode == RC_MODE_AVBR) {
// For maximum confusion AVBR is hacked into the existing API
// by overloading some of the fields with completely different
// meanings.
// Target percentage does not apply in AVBR mode.
rc_bits_per_second = avctx->bit_rate;
// Accuracy tolerance range for meeting the specified target
// bitrate. It's very unclear how this is actually intended
// to work - since we do want to get the specified bitrate,
// set the accuracy to 100% for now.
rc_target_percentage = 100;
// Convergence period in frames. The GOP size reflects the
// user's intended block size for cutting, so reusing that
// as the convergence period seems a reasonable default.
rc_window_size = avctx->gop_size > 0 ? avctx->gop_size : 60;
} else if (rc_mode->maxrate) {
if (avctx->rc_max_rate > 0) {
if (avctx->rc_max_rate < avctx->bit_rate) {
av_log(avctx, AV_LOG_ERROR, "Invalid bitrate settings: "
"bitrate (%"PRId64") must not be greater than "
"maxrate (%"PRId64").\n", avctx->bit_rate,
avctx->rc_max_rate);
return AVERROR(EINVAL);
}
rc_bits_per_second = avctx->rc_max_rate;
rc_target_percentage = (avctx->bit_rate * 100) /
avctx->rc_max_rate;
} else {
// We only have a target bitrate, but this mode requires
// that a maximum rate be supplied as well. Since the
// user does not want this to be a constraint, arbitrarily
// pick a maximum rate of double the target rate.
rc_bits_per_second = 2 * avctx->bit_rate;
rc_target_percentage = 50;
}
} else {
if (avctx->rc_max_rate > avctx->bit_rate) {
av_log(avctx, AV_LOG_WARNING, "Max bitrate is ignored "
"in %s RC mode.\n", rc_mode->name);
}
rc_bits_per_second = avctx->bit_rate;
rc_target_percentage = 100;
}
} else {
rc_bits_per_second = 0;
rc_target_percentage = 100;
}
if (rc_mode->quality) {
if (ctx->explicit_qp) {
rc_quality = ctx->explicit_qp;
} else if (avctx->global_quality > 0) {
rc_quality = avctx->global_quality;
} else {
rc_quality = ctx->codec->default_quality;
av_log(avctx, AV_LOG_WARNING, "No quality level set; "
"using default (%d).\n", rc_quality);
}
} else {
rc_quality = 0;
}
if (rc_mode->hrd) {
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 > 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 {
hrd_initial_buffer_fullness = hrd_buffer_size * 3 / 4;
}
rc_window_size = (hrd_buffer_size * 1000) / rc_bits_per_second;
} else {
if (avctx->rc_buffer_size || avctx->rc_initial_buffer_occupancy) {
av_log(avctx, AV_LOG_WARNING, "Buffering settings are ignored "
"in %s RC mode.\n", rc_mode->name);
}
hrd_buffer_size = 0;
hrd_initial_buffer_fullness = 0;
if (rc_mode->mode != RC_MODE_AVBR) {
// Already set (with completely different meaning) for AVBR.
rc_window_size = 1000;
}
}
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->rc_mode = rc_mode;
ctx->rc_quality = rc_quality;
ctx->va_rc_mode = rc_mode->va_mode;
ctx->va_bit_rate = rc_bits_per_second;
av_log(avctx, AV_LOG_VERBOSE, "RC mode: %s.\n", rc_mode->name);
if (rc_attr.value == VA_ATTRIB_NOT_SUPPORTED) {
// This driver does not want the RC mode attribute to be set.
} else {
ctx->config_attributes[ctx->nb_config_attributes++] =
(VAConfigAttrib) {
.type = VAConfigAttribRateControl,
.value = ctx->va_rc_mode,
};
}
if (rc_mode->quality)
av_log(avctx, AV_LOG_VERBOSE, "RC quality: %d.\n", rc_quality);
if (rc_mode->va_mode != VA_RC_CQP) {
if (rc_mode->mode == RC_MODE_AVBR) {
av_log(avctx, AV_LOG_VERBOSE, "RC target: %"PRId64" bps "
"converging in %d frames with %d%% accuracy.\n",
rc_bits_per_second, rc_window_size,
rc_target_percentage);
} else if (rc_mode->bitrate) {
av_log(avctx, AV_LOG_VERBOSE, "RC target: %d%% of "
"%"PRId64" bps over %d ms.\n", rc_target_percentage,
rc_bits_per_second, rc_window_size);
}
ctx->rc_params = (VAEncMiscParameterRateControl) {
.bits_per_second = rc_bits_per_second,
.target_percentage = rc_target_percentage,
.window_size = rc_window_size,
.initial_qp = 0,
.min_qp = (avctx->qmin > 0 ? avctx->qmin : 0),
.basic_unit_size = 0,
#if VA_CHECK_VERSION(1, 1, 0)
.ICQ_quality_factor = av_clip(rc_quality, 1, 51),
.max_qp = (avctx->qmax > 0 ? avctx->qmax : 0),
#endif
#if VA_CHECK_VERSION(1, 3, 0)
.quality_factor = rc_quality,
#endif
};
vaapi_encode_add_global_param(avctx,
VAEncMiscParameterTypeRateControl,
&ctx->rc_params,
sizeof(ctx->rc_params));
}
if (rc_mode->hrd) {
av_log(avctx, AV_LOG_VERBOSE, "RC buffer: %"PRId64" bits, "
"initial fullness %"PRId64" bits.\n",
hrd_buffer_size, hrd_initial_buffer_fullness);
ctx->hrd_params = (VAEncMiscParameterHRD) {
.initial_buffer_fullness = hrd_initial_buffer_fullness,
.buffer_size = hrd_buffer_size,
};
vaapi_encode_add_global_param(avctx,
VAEncMiscParameterTypeHRD,
&ctx->hrd_params,
sizeof(ctx->hrd_params));
}
if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
av_reduce(&fr_num, &fr_den,
avctx->framerate.num, avctx->framerate.den, 65535);
else
av_reduce(&fr_num, &fr_den,
avctx->time_base.den, avctx->time_base.num, 65535);
av_log(avctx, AV_LOG_VERBOSE, "RC framerate: %d/%d (%.2f fps).\n",
fr_num, fr_den, (double)fr_num / fr_den);
ctx->fr_params = (VAEncMiscParameterFrameRate) {
.framerate = (unsigned int)fr_den << 16 | fr_num,
};
#if VA_CHECK_VERSION(0, 40, 0)
vaapi_encode_add_global_param(avctx,
VAEncMiscParameterTypeFrameRate,
&ctx->fr_params,
sizeof(ctx->fr_params));
#endif
return 0;
}
static av_cold int vaapi_encode_init_max_frame_size(AVCodecContext *avctx)
{
#if VA_CHECK_VERSION(1, 5, 0)
VAAPIEncodeContext *ctx = avctx->priv_data;
VAConfigAttrib attr = { VAConfigAttribMaxFrameSize };
VAStatus vas;
if (ctx->va_rc_mode == VA_RC_CQP) {
ctx->max_frame_size = 0;
av_log(avctx, AV_LOG_ERROR, "Max frame size is invalid in CQP rate "
"control mode.\n");
return AVERROR(EINVAL);
}
vas = vaGetConfigAttributes(ctx->hwctx->display,
ctx->va_profile,
ctx->va_entrypoint,
&attr, 1);
if (vas != VA_STATUS_SUCCESS) {
ctx->max_frame_size = 0;
av_log(avctx, AV_LOG_ERROR, "Failed to query max frame size "
"config attribute: %d (%s).\n", vas, vaErrorStr(vas));
return AVERROR_EXTERNAL;
}
if (attr.value == VA_ATTRIB_NOT_SUPPORTED) {
ctx->max_frame_size = 0;
av_log(avctx, AV_LOG_ERROR, "Max frame size attribute "
"is not supported.\n");
return AVERROR(EINVAL);
} else {
VAConfigAttribValMaxFrameSize attr_mfs;
attr_mfs.value = attr.value;
// Prefer to use VAEncMiscParameterTypeMaxFrameSize for max frame size.
if (!attr_mfs.bits.max_frame_size && attr_mfs.bits.multiple_pass) {
ctx->max_frame_size = 0;
av_log(avctx, AV_LOG_ERROR, "Driver only supports multiple pass "
"max frame size which has not been implemented in FFmpeg.\n");
return AVERROR(EINVAL);
}
ctx->mfs_params = (VAEncMiscParameterBufferMaxFrameSize){
.max_frame_size = ctx->max_frame_size * 8,
};
av_log(avctx, AV_LOG_VERBOSE, "Set max frame size: %d bytes.\n",
ctx->max_frame_size);
}
#else
av_log(avctx, AV_LOG_ERROR, "The max frame size option is not supported with "
"this VAAPI version.\n");
return AVERROR(EINVAL);
#endif
return 0;
}
static av_cold int vaapi_encode_init_gop_structure(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAStatus vas;
VAConfigAttrib attr = { VAConfigAttribEncMaxRefFrames };
uint32_t ref_l0, ref_l1;
int prediction_pre_only;
vas = vaGetConfigAttributes(ctx->hwctx->display,
ctx->va_profile,
ctx->va_entrypoint,
&attr, 1);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query reference frames "
"attribute: %d (%s).\n", vas, vaErrorStr(vas));
return AVERROR_EXTERNAL;
}
if (attr.value == VA_ATTRIB_NOT_SUPPORTED) {
ref_l0 = ref_l1 = 0;
} else {
ref_l0 = attr.value & 0xffff;
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");
ctx->gop_size = 1;
} else if (ref_l0 < 1) {
av_log(avctx, AV_LOG_ERROR, "Driver does not support any "
"reference frames.\n");
return AVERROR(EINVAL);
} else if (!(ctx->codec->flags & FLAG_B_PICTURES) ||
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 {
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;
if (ctx->codec->flags & FLAG_B_PICTURE_REFERENCES) {
ctx->max_b_depth = FFMIN(ctx->desired_b_depth,
av_log2(ctx->b_per_p) + 1);
} else {
ctx->max_b_depth = 1;
}
}
if (ctx->codec->flags & FLAG_NON_IDR_KEY_PICTURES) {
ctx->closed_gop = !!(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);
ctx->gop_per_idr = ctx->idr_interval + 1;
} else {
ctx->closed_gop = 1;
ctx->gop_per_idr = 1;
}
return 0;
}
static av_cold int vaapi_encode_init_row_slice_structure(AVCodecContext *avctx,
uint32_t slice_structure)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
int req_slices;
// For fixed-size slices currently we only support whole rows, making
// rectangular slices. This could be extended to arbitrary runs of
// blocks, but since slices tend to be a conformance requirement and
// most cases (such as broadcast or bluray) want rectangular slices
// only it would need to be gated behind another option.
if (avctx->slices > ctx->slice_block_rows) {
av_log(avctx, AV_LOG_WARNING, "Not enough rows to use "
"configured number of slices (%d < %d); using "
"maximum.\n", ctx->slice_block_rows, avctx->slices);
req_slices = ctx->slice_block_rows;
} else {
req_slices = avctx->slices;
}
if (slice_structure & VA_ENC_SLICE_STRUCTURE_ARBITRARY_ROWS ||
slice_structure & VA_ENC_SLICE_STRUCTURE_ARBITRARY_MACROBLOCKS) {
ctx->nb_slices = req_slices;
ctx->slice_size = ctx->slice_block_rows / ctx->nb_slices;
} else if (slice_structure & VA_ENC_SLICE_STRUCTURE_POWER_OF_TWO_ROWS) {
int k;
for (k = 1;; k *= 2) {
if (2 * k * (req_slices - 1) + 1 >= ctx->slice_block_rows)
break;
}
ctx->nb_slices = (ctx->slice_block_rows + k - 1) / k;
ctx->slice_size = k;
#if VA_CHECK_VERSION(1, 0, 0)
} else if (slice_structure & VA_ENC_SLICE_STRUCTURE_EQUAL_ROWS) {
ctx->nb_slices = ctx->slice_block_rows;
ctx->slice_size = 1;
#endif
} else {
av_log(avctx, AV_LOG_ERROR, "Driver does not support any usable "
"slice structure modes (%#x).\n", slice_structure);
return AVERROR(EINVAL);
}
return 0;
}
static av_cold int vaapi_encode_init_tile_slice_structure(AVCodecContext *avctx,
uint32_t slice_structure)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
int i, req_tiles;
if (!(slice_structure & VA_ENC_SLICE_STRUCTURE_ARBITRARY_MACROBLOCKS ||
(slice_structure & VA_ENC_SLICE_STRUCTURE_ARBITRARY_ROWS &&
ctx->tile_cols == 1))) {
av_log(avctx, AV_LOG_ERROR, "Supported slice structure (%#x) doesn't work for "
"current tile requirement.\n", slice_structure);
return AVERROR(EINVAL);
}
if (ctx->tile_rows > ctx->slice_block_rows ||
ctx->tile_cols > ctx->slice_block_cols) {
av_log(avctx, AV_LOG_WARNING, "Not enough block rows/cols (%d x %d) "
"for configured number of tile (%d x %d); ",
ctx->slice_block_rows, ctx->slice_block_cols,
ctx->tile_rows, ctx->tile_cols);
ctx->tile_rows = ctx->tile_rows > ctx->slice_block_rows ?
ctx->slice_block_rows : ctx->tile_rows;
ctx->tile_cols = ctx->tile_cols > ctx->slice_block_cols ?
ctx->slice_block_cols : ctx->tile_cols;
av_log(avctx, AV_LOG_WARNING, "using allowed maximum (%d x %d).\n",
ctx->tile_rows, ctx->tile_cols);
}
req_tiles = ctx->tile_rows * ctx->tile_cols;
// Tile slice is not allowed to cross the boundary of a tile due to
// the constraints of media-driver. Currently we support one slice
// per tile. This could be extended to multiple slices per tile.
if (avctx->slices != req_tiles)
av_log(avctx, AV_LOG_WARNING, "The number of requested slices "
"mismatches with configured number of tile (%d != %d); "
"using requested tile number for slice.\n",
avctx->slices, req_tiles);
ctx->nb_slices = req_tiles;
// Default in uniform spacing
// 6-3, 6-5
for (i = 0; i < ctx->tile_cols; i++) {
ctx->col_width[i] = ( i + 1 ) * ctx->slice_block_cols / ctx->tile_cols -
i * ctx->slice_block_cols / ctx->tile_cols;
ctx->col_bd[i + 1] = ctx->col_bd[i] + ctx->col_width[i];
}
// 6-4, 6-6
for (i = 0; i < ctx->tile_rows; i++) {
ctx->row_height[i] = ( i + 1 ) * ctx->slice_block_rows / ctx->tile_rows -
i * ctx->slice_block_rows / ctx->tile_rows;
ctx->row_bd[i + 1] = ctx->row_bd[i] + ctx->row_height[i];
}
av_log(avctx, AV_LOG_VERBOSE, "Encoding pictures with %d x %d tile.\n",
ctx->tile_rows, ctx->tile_cols);
return 0;
}
static av_cold int vaapi_encode_init_slice_structure(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAConfigAttrib attr[3] = { { VAConfigAttribEncMaxSlices },
{ VAConfigAttribEncSliceStructure },
#if VA_CHECK_VERSION(1, 1, 0)
{ VAConfigAttribEncTileSupport },
#endif
};
VAStatus vas;
uint32_t max_slices, slice_structure;
int ret;
if (!(ctx->codec->flags & FLAG_SLICE_CONTROL)) {
if (avctx->slices > 0) {
av_log(avctx, AV_LOG_WARNING, "Multiple slices were requested "
"but this codec does not support controlling slices.\n");
}
return 0;
}
av_assert0(ctx->slice_block_height > 0 && ctx->slice_block_width > 0);
ctx->slice_block_rows = (avctx->height + ctx->slice_block_height - 1) /
ctx->slice_block_height;
ctx->slice_block_cols = (avctx->width + ctx->slice_block_width - 1) /
ctx->slice_block_width;
if (avctx->slices <= 1 && !ctx->tile_rows && !ctx->tile_cols) {
ctx->nb_slices = 1;
ctx->slice_size = ctx->slice_block_rows;
return 0;
}
vas = vaGetConfigAttributes(ctx->hwctx->display,
ctx->va_profile,
ctx->va_entrypoint,
attr, FF_ARRAY_ELEMS(attr));
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query slice "
"attributes: %d (%s).\n", vas, vaErrorStr(vas));
return AVERROR_EXTERNAL;
}
max_slices = attr[0].value;
slice_structure = attr[1].value;
if (max_slices == VA_ATTRIB_NOT_SUPPORTED ||
slice_structure == VA_ATTRIB_NOT_SUPPORTED) {
av_log(avctx, AV_LOG_ERROR, "Driver does not support encoding "
"pictures as multiple slices.\n.");
return AVERROR(EINVAL);
}
if (ctx->tile_rows && ctx->tile_cols) {
#if VA_CHECK_VERSION(1, 1, 0)
uint32_t tile_support = attr[2].value;
if (tile_support == VA_ATTRIB_NOT_SUPPORTED) {
av_log(avctx, AV_LOG_ERROR, "Driver does not support encoding "
"pictures as multiple tiles.\n.");
return AVERROR(EINVAL);
}
#else
av_log(avctx, AV_LOG_ERROR, "Tile encoding option is "
"not supported with this VAAPI version.\n");
return AVERROR(EINVAL);
#endif
}
if (ctx->tile_rows && ctx->tile_cols)
ret = vaapi_encode_init_tile_slice_structure(avctx, slice_structure);
else
ret = vaapi_encode_init_row_slice_structure(avctx, slice_structure);
if (ret < 0)
return ret;
if (ctx->nb_slices > avctx->slices) {
av_log(avctx, AV_LOG_WARNING, "Slice count rounded up to "
"%d (from %d) due to driver constraints on slice "
"structure.\n", ctx->nb_slices, avctx->slices);
}
if (ctx->nb_slices > max_slices) {
av_log(avctx, AV_LOG_ERROR, "Driver does not support "
"encoding with %d slices (max %"PRIu32").\n",
ctx->nb_slices, max_slices);
return AVERROR(EINVAL);
}
av_log(avctx, AV_LOG_VERBOSE, "Encoding pictures with %d slices.\n",
ctx->nb_slices);
return 0;
}
static av_cold int vaapi_encode_init_packed_headers(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAStatus vas;
VAConfigAttrib attr = { VAConfigAttribEncPackedHeaders };
vas = vaGetConfigAttributes(ctx->hwctx->display,
ctx->va_profile,
ctx->va_entrypoint,
&attr, 1);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query packed headers "
"attribute: %d (%s).\n", vas, vaErrorStr(vas));
return AVERROR_EXTERNAL;
}
if (attr.value == VA_ATTRIB_NOT_SUPPORTED) {
if (ctx->desired_packed_headers) {
av_log(avctx, AV_LOG_WARNING, "Driver does not support any "
"packed headers (wanted %#x).\n",
ctx->desired_packed_headers);
} else {
av_log(avctx, AV_LOG_VERBOSE, "Driver does not support any "
"packed headers (none wanted).\n");
}
ctx->va_packed_headers = 0;
} else {
if (ctx->desired_packed_headers & ~attr.value) {
av_log(avctx, AV_LOG_WARNING, "Driver does not support some "
"wanted packed headers (wanted %#x, found %#x).\n",
ctx->desired_packed_headers, attr.value);
} else {
av_log(avctx, AV_LOG_VERBOSE, "All wanted packed headers "
"available (wanted %#x, found %#x).\n",
ctx->desired_packed_headers, attr.value);
}
ctx->va_packed_headers = ctx->desired_packed_headers & attr.value;
}
if (ctx->va_packed_headers) {
ctx->config_attributes[ctx->nb_config_attributes++] =
(VAConfigAttrib) {
.type = VAConfigAttribEncPackedHeaders,
.value = ctx->va_packed_headers,
};
}
if ( (ctx->desired_packed_headers & VA_ENC_PACKED_HEADER_SEQUENCE) &&
!(ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SEQUENCE) &&
(avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)) {
av_log(avctx, AV_LOG_WARNING, "Driver does not support packed "
"sequence headers, but a global header is requested.\n");
av_log(avctx, AV_LOG_WARNING, "No global header will be written: "
"this may result in a stream which is not usable for some "
"purposes (e.g. not muxable to some containers).\n");
}
return 0;
}
static av_cold int vaapi_encode_init_quality(AVCodecContext *avctx)
{
#if VA_CHECK_VERSION(0, 36, 0)
VAAPIEncodeContext *ctx = avctx->priv_data;
VAStatus vas;
VAConfigAttrib attr = { VAConfigAttribEncQualityRange };
int quality = avctx->compression_level;
vas = vaGetConfigAttributes(ctx->hwctx->display,
ctx->va_profile,
ctx->va_entrypoint,
&attr, 1);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query quality "
"config attribute: %d (%s).\n", vas, vaErrorStr(vas));
return AVERROR_EXTERNAL;
}
if (attr.value == VA_ATTRIB_NOT_SUPPORTED) {
if (quality != 0) {
av_log(avctx, AV_LOG_WARNING, "Quality attribute is not "
"supported: will use default quality level.\n");
}
} else {
if (quality > attr.value) {
av_log(avctx, AV_LOG_WARNING, "Invalid quality level: "
"valid range is 0-%d, using %d.\n",
attr.value, attr.value);
quality = attr.value;
}
ctx->quality_params = (VAEncMiscParameterBufferQualityLevel) {
.quality_level = quality,
};
vaapi_encode_add_global_param(avctx,
VAEncMiscParameterTypeQualityLevel,
&ctx->quality_params,
sizeof(ctx->quality_params));
}
#else
av_log(avctx, AV_LOG_WARNING, "The encode quality option is "
"not supported with this VAAPI version.\n");
#endif
return 0;
}
static av_cold int vaapi_encode_init_roi(AVCodecContext *avctx)
{
#if VA_CHECK_VERSION(1, 0, 0)
VAAPIEncodeContext *ctx = avctx->priv_data;
VAStatus vas;
VAConfigAttrib attr = { VAConfigAttribEncROI };
vas = vaGetConfigAttributes(ctx->hwctx->display,
ctx->va_profile,
ctx->va_entrypoint,
&attr, 1);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query ROI "
"config attribute: %d (%s).\n", vas, vaErrorStr(vas));
return AVERROR_EXTERNAL;
}
if (attr.value == VA_ATTRIB_NOT_SUPPORTED) {
ctx->roi_allowed = 0;
} else {
VAConfigAttribValEncROI roi = {
.value = attr.value,
};
ctx->roi_max_regions = roi.bits.num_roi_regions;
ctx->roi_allowed = ctx->roi_max_regions > 0 &&
(ctx->va_rc_mode == VA_RC_CQP ||
roi.bits.roi_rc_qp_delta_support);
}
#endif
return 0;
}
static void vaapi_encode_free_output_buffer(void *opaque,
uint8_t *data)
{
AVCodecContext *avctx = opaque;
VAAPIEncodeContext *ctx = avctx->priv_data;
VABufferID buffer_id;
buffer_id = (VABufferID)(uintptr_t)data;
vaDestroyBuffer(ctx->hwctx->display, buffer_id);
av_log(avctx, AV_LOG_DEBUG, "Freed output buffer %#x\n", buffer_id);
}
static AVBufferRef *vaapi_encode_alloc_output_buffer(void *opaque,
size_t size)
{
AVCodecContext *avctx = opaque;
VAAPIEncodeContext *ctx = avctx->priv_data;
VABufferID buffer_id;
VAStatus vas;
AVBufferRef *ref;
// The output buffer size is fixed, so it needs to be large enough
// to hold the largest possible compressed frame. We assume here
// that the uncompressed frame plus some header data is an upper
// bound on that.
vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
VAEncCodedBufferType,
3 * ctx->surface_width * ctx->surface_height +
(1 << 16), 1, 0, &buffer_id);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to create bitstream "
"output buffer: %d (%s).\n", vas, vaErrorStr(vas));
return NULL;
}
av_log(avctx, AV_LOG_DEBUG, "Allocated output buffer %#x\n", buffer_id);
ref = av_buffer_create((uint8_t*)(uintptr_t)buffer_id,
sizeof(buffer_id),
&vaapi_encode_free_output_buffer,
avctx, AV_BUFFER_FLAG_READONLY);
if (!ref) {
vaDestroyBuffer(ctx->hwctx->display, buffer_id);
return NULL;
}
return ref;
}
static av_cold int vaapi_encode_create_recon_frames(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
AVVAAPIHWConfig *hwconfig = NULL;
AVHWFramesConstraints *constraints = NULL;
enum AVPixelFormat recon_format;
int err, i;
hwconfig = av_hwdevice_hwconfig_alloc(ctx->device_ref);
if (!hwconfig) {
err = AVERROR(ENOMEM);
goto fail;
}
hwconfig->config_id = ctx->va_config;
constraints = av_hwdevice_get_hwframe_constraints(ctx->device_ref,
hwconfig);
if (!constraints) {
err = AVERROR(ENOMEM);
goto fail;
}
// Probably we can use the input surface format as the surface format
// of the reconstructed frames. If not, we just pick the first (only?)
// format in the valid list and hope that it all works.
recon_format = AV_PIX_FMT_NONE;
if (constraints->valid_sw_formats) {
for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) {
if (ctx->input_frames->sw_format ==
constraints->valid_sw_formats[i]) {
recon_format = ctx->input_frames->sw_format;
break;
}
}
if (recon_format == AV_PIX_FMT_NONE) {
// No match. Just use the first in the supported list and
// hope for the best.
recon_format = constraints->valid_sw_formats[0];
}
} else {
// No idea what to use; copy input format.
recon_format = ctx->input_frames->sw_format;
}
av_log(avctx, AV_LOG_DEBUG, "Using %s as format of "
"reconstructed frames.\n", av_get_pix_fmt_name(recon_format));
if (ctx->surface_width < constraints->min_width ||
ctx->surface_height < constraints->min_height ||
ctx->surface_width > constraints->max_width ||
ctx->surface_height > constraints->max_height) {
av_log(avctx, AV_LOG_ERROR, "Hardware does not support encoding at "
"size %dx%d (constraints: width %d-%d height %d-%d).\n",
ctx->surface_width, ctx->surface_height,
constraints->min_width, constraints->max_width,
constraints->min_height, constraints->max_height);
err = AVERROR(EINVAL);
goto fail;
}
av_freep(&hwconfig);
av_hwframe_constraints_free(&constraints);
ctx->recon_frames_ref = av_hwframe_ctx_alloc(ctx->device_ref);
if (!ctx->recon_frames_ref) {
err = AVERROR(ENOMEM);
goto fail;
}
ctx->recon_frames = (AVHWFramesContext*)ctx->recon_frames_ref->data;
ctx->recon_frames->format = AV_PIX_FMT_VAAPI;
ctx->recon_frames->sw_format = recon_format;
ctx->recon_frames->width = ctx->surface_width;
ctx->recon_frames->height = ctx->surface_height;
err = av_hwframe_ctx_init(ctx->recon_frames_ref);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to initialise reconstructed "
"frame context: %d.\n", err);
goto fail;
}
err = 0;
fail:
av_freep(&hwconfig);
av_hwframe_constraints_free(&constraints);
return err;
}
av_cold int ff_vaapi_encode_init(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
AVVAAPIFramesContext *recon_hwctx = NULL;
VAStatus vas;
int err;
ctx->va_config = VA_INVALID_ID;
ctx->va_context = VA_INVALID_ID;
/* If you add something that can fail above this av_frame_alloc(),
* modify ff_vaapi_encode_close() accordingly. */
ctx->frame = av_frame_alloc();
if (!ctx->frame) {
return AVERROR(ENOMEM);
}
if (!avctx->hw_frames_ctx) {
av_log(avctx, AV_LOG_ERROR, "A hardware frames reference is "
"required to associate the encoding device.\n");
return AVERROR(EINVAL);
}
ctx->input_frames_ref = av_buffer_ref(avctx->hw_frames_ctx);
if (!ctx->input_frames_ref) {
err = AVERROR(ENOMEM);
goto fail;
}
ctx->input_frames = (AVHWFramesContext*)ctx->input_frames_ref->data;
ctx->device_ref = av_buffer_ref(ctx->input_frames->device_ref);
if (!ctx->device_ref) {
err = AVERROR(ENOMEM);
goto fail;
}
ctx->device = (AVHWDeviceContext*)ctx->device_ref->data;
ctx->hwctx = ctx->device->hwctx;
err = vaapi_encode_profile_entrypoint(avctx);
if (err < 0)
goto fail;
if (ctx->codec->get_encoder_caps) {
err = ctx->codec->get_encoder_caps(avctx);
if (err < 0)
goto fail;
} else {
// Assume 16x16 blocks.
ctx->surface_width = FFALIGN(avctx->width, 16);
ctx->surface_height = FFALIGN(avctx->height, 16);
if (ctx->codec->flags & FLAG_SLICE_CONTROL) {
ctx->slice_block_width = 16;
ctx->slice_block_height = 16;
}
}
err = vaapi_encode_init_rate_control(avctx);
if (err < 0)
goto fail;
err = vaapi_encode_init_gop_structure(avctx);
if (err < 0)
goto fail;
err = vaapi_encode_init_slice_structure(avctx);
if (err < 0)
goto fail;
err = vaapi_encode_init_packed_headers(avctx);
if (err < 0)
goto fail;
err = vaapi_encode_init_roi(avctx);
if (err < 0)
goto fail;
if (avctx->compression_level >= 0) {
err = vaapi_encode_init_quality(avctx);
if (err < 0)
goto fail;
}
if (ctx->max_frame_size) {
err = vaapi_encode_init_max_frame_size(avctx);
if (err < 0)
goto fail;
}
vas = vaCreateConfig(ctx->hwctx->display,
ctx->va_profile, ctx->va_entrypoint,
ctx->config_attributes, ctx->nb_config_attributes,
&ctx->va_config);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to create encode pipeline "
"configuration: %d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(EIO);
goto fail;
}
err = vaapi_encode_create_recon_frames(avctx);
if (err < 0)
goto fail;
recon_hwctx = ctx->recon_frames->hwctx;
vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
ctx->surface_width, ctx->surface_height,
VA_PROGRESSIVE,
recon_hwctx->surface_ids,
recon_hwctx->nb_surfaces,
&ctx->va_context);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to create encode pipeline "
"context: %d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(EIO);
goto fail;
}
ctx->output_buffer_pool =
av_buffer_pool_init2(sizeof(VABufferID), avctx,
&vaapi_encode_alloc_output_buffer, NULL);
if (!ctx->output_buffer_pool) {
err = AVERROR(ENOMEM);
goto fail;
}
if (ctx->codec->configure) {
err = ctx->codec->configure(avctx);
if (err < 0)
goto fail;
}
ctx->output_delay = ctx->b_per_p;
ctx->decode_delay = ctx->max_b_depth;
if (ctx->codec->sequence_params_size > 0) {
ctx->codec_sequence_params =
av_mallocz(ctx->codec->sequence_params_size);
if (!ctx->codec_sequence_params) {
err = AVERROR(ENOMEM);
goto fail;
}
}
if (ctx->codec->picture_params_size > 0) {
ctx->codec_picture_params =
av_mallocz(ctx->codec->picture_params_size);
if (!ctx->codec_picture_params) {
err = AVERROR(ENOMEM);
goto fail;
}
}
if (ctx->codec->init_sequence_params) {
err = ctx->codec->init_sequence_params(avctx);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Codec sequence initialisation "
"failed: %d.\n", err);
goto fail;
}
}
if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SEQUENCE &&
ctx->codec->write_sequence_header &&
avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
char data[MAX_PARAM_BUFFER_SIZE];
size_t bit_len = 8 * sizeof(data);
err = ctx->codec->write_sequence_header(avctx, data, &bit_len);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to write sequence header "
"for extradata: %d.\n", err);
goto fail;
} else {
avctx->extradata_size = (bit_len + 7) / 8;
avctx->extradata = av_mallocz(avctx->extradata_size +
AV_INPUT_BUFFER_PADDING_SIZE);
if (!avctx->extradata) {
err = AVERROR(ENOMEM);
goto fail;
}
memcpy(avctx->extradata, data, avctx->extradata_size);
}
}
#if VA_CHECK_VERSION(1, 9, 0)
// check vaSyncBuffer function
vas = vaSyncBuffer(ctx->hwctx->display, VA_INVALID_ID, 0);
if (vas != VA_STATUS_ERROR_UNIMPLEMENTED) {
ctx->has_sync_buffer_func = 1;
ctx->encode_fifo = av_fifo_alloc2(ctx->async_depth,
sizeof(VAAPIEncodePicture *),
0);
if (!ctx->encode_fifo)
return AVERROR(ENOMEM);
}
#endif
return 0;
fail:
return err;
}
av_cold int ff_vaapi_encode_close(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic, *next;
/* We check ctx->frame to know whether ff_vaapi_encode_init()
* has been called and va_config/va_context initialized. */
if (!ctx->frame)
return 0;
for (pic = ctx->pic_start; pic; pic = next) {
next = pic->next;
vaapi_encode_free(avctx, pic);
}
av_buffer_pool_uninit(&ctx->output_buffer_pool);
if (ctx->va_context != VA_INVALID_ID) {
vaDestroyContext(ctx->hwctx->display, ctx->va_context);
ctx->va_context = VA_INVALID_ID;
}
if (ctx->va_config != VA_INVALID_ID) {
vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
ctx->va_config = VA_INVALID_ID;
}
av_frame_free(&ctx->frame);
av_freep(&ctx->codec_sequence_params);
av_freep(&ctx->codec_picture_params);
av_fifo_freep2(&ctx->encode_fifo);
av_buffer_unref(&ctx->recon_frames_ref);
av_buffer_unref(&ctx->input_frames_ref);
av_buffer_unref(&ctx->device_ref);
return 0;
}
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