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FFmpeg/libavcodec/vaapi_decode.c
Haihao Xiang 41e3d36a39 lavc/vaapi_decode: Use dynamic frame pool if possible 
libva2 doesn't require a fixed surface-array any more, so we may use
dynamic frame pool for decoding when libva2 is available, which allows a
downstream element stores more frames from VAAPI decoders and fixes the
error below:

$ ffmpeg -hwaccel vaapi -hwaccel_output_format vaapi \
-i input.mp4 -c:v hevc_vaapi -f null -
...
[h264 @ 0x557a075a1400] get_buffer() failed
[h264 @ 0x557a075a1400] thread_get_buffer() failed
[h264 @ 0x557a075a1400] decode_slice_header error
[h264 @ 0x557a075a1400] no frame!

Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
2024-04-18 14:43:07 +08:00

735 lines
24 KiB
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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 "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/mem.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "codec_desc.h"
#include "decode.h"
#include "internal.h"
#include "vaapi_decode.h"
#include "vaapi_hevc.h"
int ff_vaapi_decode_make_param_buffer(AVCodecContext *avctx,
VAAPIDecodePicture *pic,
int type,
const void *data,
size_t size)
{
VAAPIDecodeContext *ctx = avctx->internal->hwaccel_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, size, 1, (void*)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 (type %d, %zu bytes) "
"is %#x.\n", type, size, buffer);
return 0;
}
int ff_vaapi_decode_make_slice_buffer(AVCodecContext *avctx,
VAAPIDecodePicture *pic,
const void *params_data,
size_t params_size,
const void *slice_data,
size_t slice_size)
{
VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
VAStatus vas;
int index;
av_assert0(pic->nb_slices <= pic->slices_allocated);
if (pic->nb_slices == pic->slices_allocated) {
pic->slice_buffers =
av_realloc_array(pic->slice_buffers,
pic->slices_allocated ? pic->slices_allocated * 2 : 64,
2 * sizeof(*pic->slice_buffers));
if (!pic->slice_buffers)
return AVERROR(ENOMEM);
pic->slices_allocated = pic->slices_allocated ? pic->slices_allocated * 2 : 64;
}
av_assert0(pic->nb_slices + 1 <= pic->slices_allocated);
index = 2 * pic->nb_slices;
vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
VASliceParameterBufferType,
params_size, 1, (void*)params_data,
&pic->slice_buffers[index]);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to create slice "
"parameter buffer: %d (%s).\n", vas, vaErrorStr(vas));
return AVERROR(EIO);
}
av_log(avctx, AV_LOG_DEBUG, "Slice %d param buffer (%zu bytes) "
"is %#x.\n", pic->nb_slices, params_size,
pic->slice_buffers[index]);
vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
VASliceDataBufferType,
slice_size, 1, (void*)slice_data,
&pic->slice_buffers[index + 1]);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to create slice "
"data buffer (size %zu): %d (%s).\n",
slice_size, vas, vaErrorStr(vas));
vaDestroyBuffer(ctx->hwctx->display,
pic->slice_buffers[index]);
return AVERROR(EIO);
}
av_log(avctx, AV_LOG_DEBUG, "Slice %d data buffer (%zu bytes) "
"is %#x.\n", pic->nb_slices, slice_size,
pic->slice_buffers[index + 1]);
++pic->nb_slices;
return 0;
}
static void ff_vaapi_decode_destroy_buffers(AVCodecContext *avctx,
VAAPIDecodePicture *pic)
{
VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
VAStatus vas;
int i;
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 "
"parameter buffer %#x: %d (%s).\n",
pic->param_buffers[i], vas, vaErrorStr(vas));
}
}
for (i = 0; i < 2 * pic->nb_slices; i++) {
vas = vaDestroyBuffer(ctx->hwctx->display,
pic->slice_buffers[i]);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to destroy slice "
"slice buffer %#x: %d (%s).\n",
pic->slice_buffers[i], vas, vaErrorStr(vas));
}
}
}
int ff_vaapi_decode_issue(AVCodecContext *avctx,
VAAPIDecodePicture *pic)
{
VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
VAStatus vas;
int err;
av_log(avctx, AV_LOG_DEBUG, "Decode to surface %#x.\n",
pic->output_surface);
vas = vaBeginPicture(ctx->hwctx->display, ctx->va_context,
pic->output_surface);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to begin picture decode "
"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 decode "
"parameters: %d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(EIO);
goto fail_with_picture;
}
vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
pic->slice_buffers, 2 * pic->nb_slices);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to upload slices: "
"%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 decode "
"issue: %d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(EIO);
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)
ff_vaapi_decode_destroy_buffers(avctx, pic);
err = 0;
goto exit;
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 decode "
"after error: %d (%s).\n", vas, vaErrorStr(vas));
}
fail:
ff_vaapi_decode_destroy_buffers(avctx, pic);
fail_at_end:
exit:
pic->nb_param_buffers = 0;
pic->nb_slices = 0;
pic->slices_allocated = 0;
av_freep(&pic->slice_buffers);
return err;
}
int ff_vaapi_decode_cancel(AVCodecContext *avctx,
VAAPIDecodePicture *pic)
{
ff_vaapi_decode_destroy_buffers(avctx, pic);
pic->nb_param_buffers = 0;
pic->nb_slices = 0;
pic->slices_allocated = 0;
av_freep(&pic->slice_buffers);
return 0;
}
static const struct {
uint32_t fourcc;
enum AVPixelFormat pix_fmt;
} vaapi_format_map[] = {
#define MAP(va, av) { VA_FOURCC_ ## va, AV_PIX_FMT_ ## av }
// 4:0:0
MAP(Y800, GRAY8),
// 4:2:0
MAP(NV12, NV12),
MAP(YV12, YUV420P),
MAP(IYUV, YUV420P),
#ifdef VA_FOURCC_I420
MAP(I420, YUV420P),
#endif
MAP(IMC3, YUV420P),
// 4:1:1
MAP(411P, YUV411P),
// 4:2:2
MAP(422H, YUV422P),
#ifdef VA_FOURCC_YV16
MAP(YV16, YUV422P),
#endif
MAP(YUY2, YUYV422),
#ifdef VA_FOURCC_Y210
MAP(Y210, Y210),
#endif
#ifdef VA_FOURCC_Y212
MAP(Y212, Y212),
#endif
// 4:4:0
MAP(422V, YUV440P),
// 4:4:4
MAP(444P, YUV444P),
#ifdef VA_FOURCC_XYUV
MAP(XYUV, VUYX),
#endif
#ifdef VA_FOURCC_Y410
MAP(Y410, XV30),
#endif
#ifdef VA_FOURCC_Y412
MAP(Y412, XV36),
#endif
// 4:2:0 10-bit
#ifdef VA_FOURCC_P010
MAP(P010, P010),
#endif
#ifdef VA_FOURCC_P012
MAP(P012, P012),
#endif
#ifdef VA_FOURCC_I010
MAP(I010, YUV420P10),
#endif
#undef MAP
};
static int vaapi_decode_find_best_format(AVCodecContext *avctx,
AVHWDeviceContext *device,
VAConfigID config_id,
AVHWFramesContext *frames)
{
AVVAAPIDeviceContext *hwctx = device->hwctx;
VAStatus vas;
VASurfaceAttrib *attr;
enum AVPixelFormat source_format, best_format, format;
uint32_t best_fourcc, fourcc;
int i, j, nb_attr;
source_format = avctx->sw_pix_fmt;
av_assert0(source_format != AV_PIX_FMT_NONE);
vas = vaQuerySurfaceAttributes(hwctx->display, config_id,
NULL, &nb_attr);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query surface attributes: "
"%d (%s).\n", vas, vaErrorStr(vas));
return AVERROR(ENOSYS);
}
attr = av_malloc_array(nb_attr, sizeof(*attr));
if (!attr)
return AVERROR(ENOMEM);
vas = vaQuerySurfaceAttributes(hwctx->display, config_id,
attr, &nb_attr);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query surface attributes: "
"%d (%s).\n", vas, vaErrorStr(vas));
av_freep(&attr);
return AVERROR(ENOSYS);
}
best_format = AV_PIX_FMT_NONE;
for (i = 0; i < nb_attr; i++) {
if (attr[i].type != VASurfaceAttribPixelFormat)
continue;
fourcc = attr[i].value.value.i;
for (j = 0; j < FF_ARRAY_ELEMS(vaapi_format_map); j++) {
if (fourcc == vaapi_format_map[j].fourcc)
break;
}
if (j >= FF_ARRAY_ELEMS(vaapi_format_map)) {
av_log(avctx, AV_LOG_DEBUG, "Ignoring unknown format %#x.\n",
fourcc);
continue;
}
format = vaapi_format_map[j].pix_fmt;
av_log(avctx, AV_LOG_DEBUG, "Considering format %#x -> %s.\n",
fourcc, av_get_pix_fmt_name(format));
best_format = av_find_best_pix_fmt_of_2(format, best_format,
source_format, 0, NULL);
if (format == best_format)
best_fourcc = fourcc;
}
av_freep(&attr);
if (best_format == AV_PIX_FMT_NONE) {
av_log(avctx, AV_LOG_ERROR, "No usable formats for decoding!\n");
return AVERROR(EINVAL);
}
av_log(avctx, AV_LOG_DEBUG, "Picked %s (%#x) as best match for %s.\n",
av_get_pix_fmt_name(best_format), best_fourcc,
av_get_pix_fmt_name(source_format));
frames->sw_format = best_format;
if (avctx->internal->hwaccel_priv_data) {
VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
AVVAAPIFramesContext *avfc = frames->hwctx;
ctx->pixel_format_attribute = (VASurfaceAttrib) {
.type = VASurfaceAttribPixelFormat,
.flags = VA_SURFACE_ATTRIB_SETTABLE,
.value.type = VAGenericValueTypeInteger,
.value.value.i = best_fourcc,
};
avfc->attributes = &ctx->pixel_format_attribute;
avfc->nb_attributes = 1;
}
return 0;
}
static const struct {
enum AVCodecID codec_id;
int codec_profile;
VAProfile va_profile;
VAProfile (*profile_parser)(AVCodecContext *avctx);
} vaapi_profile_map[] = {
#define MAP(c, p, v, ...) { AV_CODEC_ID_ ## c, AV_PROFILE_ ## p, VAProfile ## v, __VA_ARGS__ }
MAP(MPEG2VIDEO, MPEG2_SIMPLE, MPEG2Simple ),
MAP(MPEG2VIDEO, MPEG2_MAIN, MPEG2Main ),
MAP(H263, UNKNOWN, H263Baseline),
MAP(MPEG4, MPEG4_SIMPLE, MPEG4Simple ),
MAP(MPEG4, MPEG4_ADVANCED_SIMPLE,
MPEG4AdvancedSimple),
MAP(MPEG4, MPEG4_MAIN, MPEG4Main ),
#if VA_CHECK_VERSION(1, 18, 0)
MAP(H264, H264_HIGH_10_INTRA,
H264High10 ),
MAP(H264, H264_HIGH_10, H264High10 ),
#endif
MAP(H264, H264_CONSTRAINED_BASELINE,
H264ConstrainedBaseline),
MAP(H264, H264_MAIN, H264Main ),
MAP(H264, H264_HIGH, H264High ),
#if VA_CHECK_VERSION(0, 37, 0)
MAP(HEVC, HEVC_MAIN, HEVCMain ),
MAP(HEVC, HEVC_MAIN_10, HEVCMain10 ),
MAP(HEVC, HEVC_MAIN_STILL_PICTURE,
HEVCMain ),
#endif
#if VA_CHECK_VERSION(1, 2, 0) && CONFIG_HEVC_VAAPI_HWACCEL
MAP(HEVC, HEVC_REXT, None,
ff_vaapi_parse_hevc_rext_scc_profile ),
MAP(HEVC, HEVC_SCC, None,
ff_vaapi_parse_hevc_rext_scc_profile ),
#endif
MAP(MJPEG, MJPEG_HUFFMAN_BASELINE_DCT,
JPEGBaseline),
MAP(WMV3, VC1_SIMPLE, VC1Simple ),
MAP(WMV3, VC1_MAIN, VC1Main ),
MAP(WMV3, VC1_COMPLEX, VC1Advanced ),
MAP(WMV3, VC1_ADVANCED, VC1Advanced ),
MAP(VC1, VC1_SIMPLE, VC1Simple ),
MAP(VC1, VC1_MAIN, VC1Main ),
MAP(VC1, VC1_COMPLEX, VC1Advanced ),
MAP(VC1, VC1_ADVANCED, VC1Advanced ),
MAP(VP8, UNKNOWN, VP8Version0_3 ),
#if VA_CHECK_VERSION(0, 38, 0)
MAP(VP9, VP9_0, VP9Profile0 ),
#endif
#if VA_CHECK_VERSION(0, 39, 0)
MAP(VP9, VP9_1, VP9Profile1 ),
MAP(VP9, VP9_2, VP9Profile2 ),
MAP(VP9, VP9_3, VP9Profile3 ),
#endif
#if VA_CHECK_VERSION(1, 8, 0)
MAP(AV1, AV1_MAIN, AV1Profile0),
MAP(AV1, AV1_HIGH, AV1Profile1),
#endif
#undef MAP
};
/*
* Set *va_config and the frames_ref fields from the current codec parameters
* in avctx.
*/
static int vaapi_decode_make_config(AVCodecContext *avctx,
AVBufferRef *device_ref,
VAConfigID *va_config,
AVBufferRef *frames_ref)
{
AVVAAPIHWConfig *hwconfig = NULL;
AVHWFramesConstraints *constraints = NULL;
VAStatus vas;
int err, i, j;
const AVCodecDescriptor *codec_desc;
VAProfile *profile_list = NULL, matched_va_profile, va_profile;
int profile_count, exact_match, matched_ff_profile, codec_profile;
AVHWDeviceContext *device = (AVHWDeviceContext*)device_ref->data;
AVVAAPIDeviceContext *hwctx = device->hwctx;
codec_desc = avcodec_descriptor_get(avctx->codec_id);
if (!codec_desc) {
err = AVERROR(EINVAL);
goto fail;
}
profile_count = vaMaxNumProfiles(hwctx->display);
profile_list = av_malloc_array(profile_count,
sizeof(VAProfile));
if (!profile_list) {
err = AVERROR(ENOMEM);
goto fail;
}
vas = vaQueryConfigProfiles(hwctx->display,
profile_list, &profile_count);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query profiles: "
"%d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(ENOSYS);
goto fail;
}
matched_va_profile = VAProfileNone;
exact_match = 0;
for (i = 0; i < FF_ARRAY_ELEMS(vaapi_profile_map); i++) {
int profile_match = 0;
if (avctx->codec_id != vaapi_profile_map[i].codec_id)
continue;
if (avctx->profile == vaapi_profile_map[i].codec_profile ||
vaapi_profile_map[i].codec_profile == AV_PROFILE_UNKNOWN)
profile_match = 1;
va_profile = vaapi_profile_map[i].profile_parser ?
vaapi_profile_map[i].profile_parser(avctx) :
vaapi_profile_map[i].va_profile;
codec_profile = vaapi_profile_map[i].codec_profile;
for (j = 0; j < profile_count; j++) {
if (va_profile == profile_list[j]) {
exact_match = profile_match;
break;
}
}
if (j < profile_count) {
matched_va_profile = va_profile;
matched_ff_profile = codec_profile;
if (exact_match)
break;
}
}
av_freep(&profile_list);
if (matched_va_profile == VAProfileNone) {
av_log(avctx, AV_LOG_ERROR, "No support for codec %s "
"profile %d.\n", codec_desc->name, avctx->profile);
err = AVERROR(ENOSYS);
goto fail;
}
if (!exact_match) {
if (avctx->hwaccel_flags &
AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH) {
av_log(avctx, AV_LOG_VERBOSE, "Codec %s profile %d not "
"supported for hardware decode.\n",
codec_desc->name, avctx->profile);
av_log(avctx, AV_LOG_WARNING, "Using possibly-"
"incompatible profile %d instead.\n",
matched_ff_profile);
} else {
av_log(avctx, AV_LOG_VERBOSE, "Codec %s profile %d not "
"supported for hardware decode.\n",
codec_desc->name, avctx->profile);
err = AVERROR(EINVAL);
goto fail;
}
}
vas = vaCreateConfig(hwctx->display, matched_va_profile,
VAEntrypointVLD, NULL, 0,
va_config);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to create decode "
"configuration: %d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(EIO);
goto fail;
}
hwconfig = av_hwdevice_hwconfig_alloc(device_ref);
if (!hwconfig) {
err = AVERROR(ENOMEM);
goto fail;
}
hwconfig->config_id = *va_config;
constraints =
av_hwdevice_get_hwframe_constraints(device_ref, hwconfig);
if (!constraints) {
err = AVERROR(ENOMEM);
goto fail;
}
if (avctx->coded_width < constraints->min_width ||
avctx->coded_height < constraints->min_height ||
avctx->coded_width > constraints->max_width ||
avctx->coded_height > constraints->max_height) {
av_log(avctx, AV_LOG_ERROR, "Hardware does not support image "
"size %dx%d (constraints: width %d-%d height %d-%d).\n",
avctx->coded_width, avctx->coded_height,
constraints->min_width, constraints->max_width,
constraints->min_height, constraints->max_height);
err = AVERROR(EINVAL);
goto fail;
}
if (!constraints->valid_sw_formats ||
constraints->valid_sw_formats[0] == AV_PIX_FMT_NONE) {
av_log(avctx, AV_LOG_ERROR, "Hardware does not offer any "
"usable surface formats.\n");
err = AVERROR(EINVAL);
goto fail;
}
if (frames_ref) {
AVHWFramesContext *frames = (AVHWFramesContext *)frames_ref->data;
frames->format = AV_PIX_FMT_VAAPI;
frames->width = avctx->coded_width;
frames->height = avctx->coded_height;
err = vaapi_decode_find_best_format(avctx, device,
*va_config, frames);
if (err < 0)
goto fail;
if (CONFIG_VAAPI_1)
frames->initial_pool_size = 0;
else {
frames->initial_pool_size = 1;
// Add per-codec number of surfaces used for storing reference frames.
switch (avctx->codec_id) {
case AV_CODEC_ID_H264:
case AV_CODEC_ID_HEVC:
case AV_CODEC_ID_AV1:
frames->initial_pool_size += 16;
break;
case AV_CODEC_ID_VP9:
frames->initial_pool_size += 8;
break;
case AV_CODEC_ID_VP8:
frames->initial_pool_size += 3;
break;
default:
frames->initial_pool_size += 2;
}
}
}
av_hwframe_constraints_free(&constraints);
av_freep(&hwconfig);
return 0;
fail:
av_hwframe_constraints_free(&constraints);
av_freep(&hwconfig);
if (*va_config != VA_INVALID_ID) {
vaDestroyConfig(hwctx->display, *va_config);
*va_config = VA_INVALID_ID;
}
av_freep(&profile_list);
return err;
}
int ff_vaapi_common_frame_params(AVCodecContext *avctx,
AVBufferRef *hw_frames_ctx)
{
AVHWFramesContext *hw_frames = (AVHWFramesContext *)hw_frames_ctx->data;
AVHWDeviceContext *device_ctx = hw_frames->device_ctx;
AVVAAPIDeviceContext *hwctx;
VAConfigID va_config = VA_INVALID_ID;
int err;
if (device_ctx->type != AV_HWDEVICE_TYPE_VAAPI)
return AVERROR(EINVAL);
hwctx = device_ctx->hwctx;
err = vaapi_decode_make_config(avctx, hw_frames->device_ref, &va_config,
hw_frames_ctx);
if (err)
return err;
if (va_config != VA_INVALID_ID)
vaDestroyConfig(hwctx->display, va_config);
return 0;
}
int ff_vaapi_decode_init(AVCodecContext *avctx)
{
VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
VAStatus vas;
int err;
ctx->va_config = VA_INVALID_ID;
ctx->va_context = VA_INVALID_ID;
err = ff_decode_get_hw_frames_ctx(avctx, AV_HWDEVICE_TYPE_VAAPI);
if (err < 0)
goto fail;
ctx->frames = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
ctx->hwfc = ctx->frames->hwctx;
ctx->device = ctx->frames->device_ctx;
ctx->hwctx = ctx->device->hwctx;
err = vaapi_decode_make_config(avctx, ctx->frames->device_ref,
&ctx->va_config, NULL);
if (err)
goto fail;
vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
avctx->coded_width, avctx->coded_height,
VA_PROGRESSIVE,
ctx->hwfc->surface_ids,
ctx->hwfc->nb_surfaces,
&ctx->va_context);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to create decode "
"context: %d (%s).\n", vas, vaErrorStr(vas));
err = AVERROR(EIO);
goto fail;
}
av_log(avctx, AV_LOG_DEBUG, "Decode context initialised: "
"%#x/%#x.\n", ctx->va_config, ctx->va_context);
return 0;
fail:
ff_vaapi_decode_uninit(avctx);
return err;
}
int ff_vaapi_decode_uninit(AVCodecContext *avctx)
{
VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
VAStatus vas;
if (ctx->va_context != VA_INVALID_ID) {
vas = vaDestroyContext(ctx->hwctx->display, ctx->va_context);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to destroy decode "
"context %#x: %d (%s).\n",
ctx->va_context, vas, vaErrorStr(vas));
}
}
if (ctx->va_config != VA_INVALID_ID) {
vas = vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to destroy decode "
"configuration %#x: %d (%s).\n",
ctx->va_config, vas, vaErrorStr(vas));
}
}
return 0;
}
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