/*
* 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 <inttypes.h>
#include <string.h>
#include "libavutil/avassert.h"
#include "libavutil/log.h"
#include "libavutil/pixdesc.h"
#include "vaapi_encode.h"
#include "avcodec.h"
static const char *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;
VAEncPackedHeaderParameterBuffer params = {
.type = type,
.bit_length = bit_len,
.has_emulation_bytes = 1,
};
av_assert0(pic->nb_param_buffers + 2 <= MAX_PARAM_BUFFERS);
vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
VAEncPackedHeaderParameterBufferType,
sizeof(params), 1, ¶ms, ¶m_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 buffer;
av_assert0(pic->nb_param_buffers + 1 <= MAX_PARAM_BUFFERS);
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_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" "
"(recon surface %#x).\n", pic->display_order,
pic->encode_order, pic->recon_surface);
vas = vaSyncSurface(ctx->hwctx->display, pic->recon_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_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_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->input_available && !pic->encode_issued);
for (i = 0; i < pic->nb_refs; i++) {
av_assert0(pic->refs[i]);
// If we are serialised then the references must have already
// completed. If not, they must have been issued but need not
// have completed yet.
if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING)
av_assert0(pic->refs[i]->encode_complete);
else
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);
vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
VAEncCodedBufferType,
MAX_OUTPUT_BUFFER_SIZE, 1, 0,
&pic->output_buffer);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to create bitstream "
"output buffer: %d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(ENOMEM);
goto fail;
}
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->encode_order == 0) {
// Global parameter buffers are set on the first picture only.
for (i = 0; i < ctx->nb_global_params; i++) {
err = vaapi_encode_make_param_buffer(avctx, pic,
VAEncMiscParameterBufferType,
(char*)ctx->global_params[i],
ctx->global_params_size[i]);
if (err < 0)
goto fail;
}
}
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 (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 (pic->type == PICTURE_TYPE_IDR) {
if (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->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;
}
}
av_assert0(pic->nb_slices <= MAX_PICTURE_SLICES);
for (i = 0; i < pic->nb_slices; i++) {
slice = av_mallocz(sizeof(*slice));
if (!slice) {
err = AVERROR(ENOMEM);
goto fail;
}
pic->slices[i] = slice;
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 initalise slice "
"parameters: %d.\n", err);
goto fail;
}
}
if (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;
}
}
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);
goto fail_at_end;
}
pic->encode_issued = 1;
if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING)
return vaapi_encode_wait(avctx, pic);
else
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]);
fail_at_end:
av_freep(&pic->codec_picture_params);
av_frame_free(&pic->recon_image);
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 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) {
av_log(avctx, AV_LOG_DEBUG, "Output buffer: %u bytes "
"(status %08x).\n", buf->size, buf->status);
err = av_new_packet(pkt, buf->size);
if (err < 0)
goto fail;
memcpy(pkt->data, buf->buf, 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;
}
vaDestroyBuffer(ctx->hwctx->display, pic->output_buffer);
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:
if (pic->output_buffer != VA_INVALID_ID) {
vaUnmapBuffer(ctx->hwctx->display, pic->output_buffer);
vaDestroyBuffer(ctx->hwctx->display, pic->output_buffer);
pic->output_buffer = VA_INVALID_ID;
}
return err;
}
static int vaapi_encode_discard(AVCodecContext *avctx,
VAAPIEncodePicture *pic)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
vaapi_encode_wait(avctx, pic);
if (pic->output_buffer != VA_INVALID_ID) {
av_log(avctx, AV_LOG_DEBUG, "Discard output for pic "
"%"PRId64"/%"PRId64".\n",
pic->display_order, pic->encode_order);
vaDestroyBuffer(ctx->hwctx->display, pic->output_buffer);
pic->output_buffer = VA_INVALID_ID;
}
return 0;
}
static VAAPIEncodePicture *vaapi_encode_alloc(void)
{
VAAPIEncodePicture *pic;
pic = av_mallocz(sizeof(*pic));
if (!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);
for (i = 0; i < pic->nb_slices; i++) {
av_freep(&pic->slices[i]->priv_data);
av_freep(&pic->slices[i]->codec_slice_params);
av_freep(&pic->slices[i]);
}
av_freep(&pic->codec_picture_params);
av_frame_free(&pic->input_image);
av_frame_free(&pic->recon_image);
// 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_free(pic);
return 0;
}
static int vaapi_encode_step(AVCodecContext *avctx,
VAAPIEncodePicture *target)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic;
int i, err;
if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING ||
ctx->issue_mode == ISSUE_MODE_MINIMISE_LATENCY) {
// These two modes are equivalent, except that we wait for
// immediate completion on each operation if serialised.
if (!target) {
// No target, nothing to do yet.
return 0;
}
if (target->encode_complete) {
// Already done.
return 0;
}
pic = target;
for (i = 0; i < pic->nb_refs; i++) {
if (!pic->refs[i]->encode_complete) {
err = vaapi_encode_step(avctx, pic->refs[i]);
if (err < 0)
return err;
}
}
err = vaapi_encode_issue(avctx, pic);
if (err < 0)
return err;
} else if (ctx->issue_mode == ISSUE_MODE_MAXIMISE_THROUGHPUT) {
int activity;
do {
activity = 0;
for (pic = ctx->pic_start; pic; pic = pic->next) {
if (!pic->input_available || pic->encode_issued)
continue;
for (i = 0; i < pic->nb_refs; i++) {
if (!pic->refs[i]->encode_issued)
break;
}
if (i < pic->nb_refs)
continue;
err = vaapi_encode_issue(avctx, pic);
if (err < 0)
return err;
activity = 1;
}
} while(activity);
if (target) {
av_assert0(target->encode_issued && "broken dependencies?");
}
} else {
av_assert0(0);
}
return 0;
}
static int vaapi_encode_get_next(AVCodecContext *avctx,
VAAPIEncodePicture **pic_out)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *start, *end, *pic;
int i;
for (pic = ctx->pic_start; pic; pic = pic->next) {
if (pic->next)
av_assert0(pic->display_order + 1 == pic->next->display_order);
if (pic->display_order == ctx->input_order) {
*pic_out = pic;
return 0;
}
}
if (ctx->input_order == 0) {
// First frame is always an IDR frame.
av_assert0(!ctx->pic_start && !ctx->pic_end);
pic = vaapi_encode_alloc();
if (!pic)
return AVERROR(ENOMEM);
pic->type = PICTURE_TYPE_IDR;
pic->display_order = 0;
pic->encode_order = 0;
ctx->pic_start = ctx->pic_end = pic;
*pic_out = pic;
return 0;
}
pic = vaapi_encode_alloc();
if (!pic)
return AVERROR(ENOMEM);
if (ctx->p_per_i == 0 || ctx->p_counter == ctx->p_per_i) {
if (ctx->i_per_idr == 0 || ctx->i_counter == ctx->i_per_idr) {
pic->type = PICTURE_TYPE_IDR;
ctx->i_counter = 0;
} else {
pic->type = PICTURE_TYPE_I;
++ctx->i_counter;
}
ctx->p_counter = 0;
} else {
pic->type = PICTURE_TYPE_P;
pic->refs[0] = ctx->pic_end;
pic->nb_refs = 1;
++ctx->p_counter;
}
start = end = pic;
if (pic->type != PICTURE_TYPE_IDR) {
// If that was not an IDR frame, add B-frames display-before and
// encode-after it.
for (i = 0; i < ctx->b_per_p; i++) {
pic = vaapi_encode_alloc();
if (!pic)
goto fail;
pic->type = PICTURE_TYPE_B;
pic->refs[0] = ctx->pic_end;
pic->refs[1] = end;
pic->nb_refs = 2;
pic->next = start;
pic->display_order = ctx->input_order + ctx->b_per_p - i - 1;
pic->encode_order = pic->display_order + 1;
start = pic;
}
}
for (i = 0, pic = start; pic; i++, pic = pic->next) {
pic->display_order = ctx->input_order + i;
if (end->type == PICTURE_TYPE_IDR)
pic->encode_order = ctx->input_order + i;
else if (pic == end)
pic->encode_order = ctx->input_order;
else
pic->encode_order = ctx->input_order + i + 1;
}
av_assert0(ctx->pic_end);
ctx->pic_end->next = start;
ctx->pic_end = end;
*pic_out = start;
av_log(avctx, AV_LOG_DEBUG, "Pictures:");
for (pic = ctx->pic_start; pic; pic = pic->next) {
av_log(avctx, AV_LOG_DEBUG, " %s (%"PRId64"/%"PRId64")",
picture_type_name[pic->type],
pic->display_order, pic->encode_order);
}
av_log(avctx, AV_LOG_DEBUG, "\n");
return 0;
fail:
while (start) {
pic = start->next;
vaapi_encode_free(avctx, start);
start = pic;
}
return AVERROR(ENOMEM);
}
static int vaapi_encode_mangle_end(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic, *last_pic, *next;
// Find the last picture we actually have input for.
for (pic = ctx->pic_start; pic; pic = pic->next) {
if (!pic->input_available)
break;
last_pic = pic;
}
if (pic) {
av_assert0(last_pic);
if (last_pic->type == PICTURE_TYPE_B) {
// Some fixing up is required. Change the type of this
// picture to P, then modify preceding B references which
// point beyond it to point at it instead.
last_pic->type = PICTURE_TYPE_P;
last_pic->encode_order = last_pic->refs[1]->encode_order;
for (pic = ctx->pic_start; pic != last_pic; pic = pic->next) {
if (pic->type == PICTURE_TYPE_B &&
pic->refs[1] == last_pic->refs[1])
pic->refs[1] = last_pic;
}
last_pic->nb_refs = 1;
last_pic->refs[1] = NULL;
} else {
// We can use the current structure (no references point
// beyond the end), but there are unused pics to discard.
}
// Discard all following pics, they will never be used.
for (pic = last_pic->next; pic; pic = next) {
next = pic->next;
vaapi_encode_free(avctx, pic);
}
last_pic->next = NULL;
ctx->pic_end = last_pic;
} else {
// Input is available for all pictures, so we don't need to
// mangle anything.
}
av_log(avctx, AV_LOG_DEBUG, "Pictures at end of stream:");
for (pic = ctx->pic_start; pic; pic = pic->next) {
av_log(avctx, AV_LOG_DEBUG, " %s (%"PRId64"/%"PRId64")",
picture_type_name[pic->type],
pic->display_order, pic->encode_order);
}
av_log(avctx, AV_LOG_DEBUG, "\n");
return 0;
}
static int vaapi_encode_clear_old(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic, *old;
int i;
while (ctx->pic_start != ctx->pic_end) {
old = ctx->pic_start;
if (old->encode_order > ctx->output_order)
break;
for (pic = old->next; pic; pic = pic->next) {
if (pic->encode_complete)
continue;
for (i = 0; i < pic->nb_refs; i++) {
if (pic->refs[i] == old) {
// We still need this picture because it's referred to
// directly by a later one, so it and all following
// pictures have to stay.
return 0;
}
}
}
pic = ctx->pic_start;
ctx->pic_start = pic->next;
vaapi_encode_free(avctx, pic);
}
return 0;
}
int ff_vaapi_encode2(AVCodecContext *avctx, AVPacket *pkt,
const AVFrame *input_image, int *got_packet)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic;
int err;
if (input_image) {
av_log(avctx, AV_LOG_DEBUG, "Encode frame: %ux%u (%"PRId64").\n",
input_image->width, input_image->height, input_image->pts);
err = vaapi_encode_get_next(avctx, &pic);
if (err) {
av_log(avctx, AV_LOG_ERROR, "Input setup failed: %d.\n", err);
return err;
}
pic->input_image = av_frame_alloc();
if (!pic->input_image) {
err = AVERROR(ENOMEM);
goto fail;
}
err = av_frame_ref(pic->input_image, input_image);
if (err < 0)
goto fail;
pic->input_surface = (VASurfaceID)(uintptr_t)input_image->data[3];
pic->pts = input_image->pts;
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)] = pic->pts;
pic->input_available = 1;
} else {
if (!ctx->end_of_stream) {
err = vaapi_encode_mangle_end(avctx);
if (err < 0)
goto fail;
ctx->end_of_stream = 1;
}
}
++ctx->input_order;
++ctx->output_order;
av_assert0(ctx->output_order + ctx->output_delay + 1 == ctx->input_order);
for (pic = ctx->pic_start; pic; pic = pic->next)
if (pic->encode_order == ctx->output_order)
break;
// pic can be null here if we don't have a specific target in this
// iteration. We might still issue encodes if things can be overlapped,
// even though we don't intend to output anything.
err = vaapi_encode_step(avctx, pic);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Encode failed: %d.\n", err);
goto fail;
}
if (!pic) {
*got_packet = 0;
} else {
err = vaapi_encode_output(avctx, pic, pkt);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Output failed: %d.\n", err);
goto fail;
}
if (ctx->output_delay == 0) {
pkt->dts = pkt->pts;
} else if (ctx->output_order < ctx->decode_delay) {
if (ctx->ts_ring[ctx->output_order] < INT64_MIN + ctx->dts_pts_diff)
pkt->dts = INT64_MIN;
else
pkt->dts = ctx->ts_ring[ctx->output_order] - ctx->dts_pts_diff;
} else {
pkt->dts = ctx->ts_ring[(ctx->output_order - ctx->decode_delay) %
(3 * ctx->output_delay)];
}
*got_packet = 1;
}
err = vaapi_encode_clear_old(avctx);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "List clearing failed: %d.\n", err);
goto fail;
}
return 0;
fail:
// Unclear what to clean up on failure. There are probably some things we
// could do usefully clean up here, but for now just leave them for uninit()
// to do instead.
return err;
}
av_cold int ff_vaapi_encode_init(AVCodecContext *avctx,
const VAAPIEncodeType *type)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
AVVAAPIFramesContext *recon_hwctx = NULL;
AVVAAPIHWConfig *hwconfig = NULL;
AVHWFramesConstraints *constraints = NULL;
enum AVPixelFormat recon_format;
VAStatus vas;
int err, i;
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->codec = type;
ctx->codec_options = ctx->codec_options_data;
ctx->priv_data = av_mallocz(type->priv_data_size);
if (!ctx->priv_data) {
err = AVERROR(ENOMEM);
goto fail;
}
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 = ctx->codec->init(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;
}
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)
recon_format = constraints->valid_sw_formats[i];
} 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->aligned_width < constraints->min_width ||
ctx->aligned_height < constraints->min_height ||
ctx->aligned_width > constraints->max_width ||
ctx->aligned_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->aligned_width, ctx->aligned_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->aligned_width;
ctx->recon_frames->height = ctx->aligned_height;
ctx->recon_frames->initial_pool_size = ctx->nb_recon_frames;
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;
}
recon_hwctx = ctx->recon_frames->hwctx;
vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
ctx->aligned_width, ctx->aligned_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->input_order = 0;
ctx->output_delay = avctx->max_b_frames;
ctx->decode_delay = 1;
ctx->output_order = - ctx->output_delay - 1;
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;
}
}
// All I are IDR for now.
ctx->i_per_idr = 0;
ctx->p_per_i = ((avctx->gop_size + avctx->max_b_frames) /
(avctx->max_b_frames + 1));
ctx->b_per_p = avctx->max_b_frames;
// This should be configurable somehow. (Needs testing on a machine
// where it actually overlaps properly, though.)
ctx->issue_mode = ISSUE_MODE_MAXIMISE_THROUGHPUT;
return 0;
fail:
av_freep(&hwconfig);
av_hwframe_constraints_free(&constraints);
ff_vaapi_encode_close(avctx);
return err;
}
av_cold int ff_vaapi_encode_close(AVCodecContext *avctx)
{
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodePicture *pic, *next;
for (pic = ctx->pic_start; pic; pic = next) {
next = pic->next;
vaapi_encode_free(avctx, pic);
}
if (ctx->va_context != VA_INVALID_ID)
vaDestroyContext(ctx->hwctx->display, ctx->va_context);
if (ctx->va_config != VA_INVALID_ID)
vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
if (ctx->codec->close)
ctx->codec->close(avctx);
av_freep(&ctx->codec_sequence_params);
av_freep(&ctx->codec_picture_params);
av_buffer_unref(&ctx->recon_frames_ref);
av_buffer_unref(&ctx->input_frames_ref);
av_buffer_unref(&ctx->device_ref);
av_freep(&ctx->priv_data);
return 0;
}