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FFmpeg/libavcodec/vaapi_decode.c

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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 "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "internal.h"
#include "vaapi_decode.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) {
if (pic->slices_allocated > 0)
pic->slices_allocated *= 2;
else
pic->slices_allocated = 64;
pic->slice_buffers =
av_realloc_array(pic->slice_buffers,
pic->slices_allocated,
2 * sizeof(*pic->slice_buffers));
if (!pic->slice_buffers)
return AVERROR(ENOMEM);
}
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);
pic->nb_param_buffers = 0;
pic->nb_slices = 0;
pic->slices_allocated = 0;
av_freep(&pic->slice_buffers);
return 0;
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:
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 {
enum AVCodecID codec_id;
int codec_profile;
VAProfile va_profile;
} vaapi_profile_map[] = {
#define MAP(c, p, v) { AV_CODEC_ID_ ## c, FF_PROFILE_ ## p, VAProfile ## v }
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 ),
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 ),
#endif
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 ),
#if VA_CHECK_VERSION(0, 35, 0)
MAP(VP8, UNKNOWN, VP8Version0_3 ),
#endif
#if VA_CHECK_VERSION(0, 38, 0)
MAP(VP9, VP9_0, VP9Profile0 ),
#endif
#if VA_CHECK_VERSION(0, 39, 0)
MAP(VP9, VP9_2, VP9Profile2 ),
#endif
#undef MAP
};
static int vaapi_decode_make_config(AVCodecContext *avctx)
{
VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
AVVAAPIHWConfig *hwconfig = NULL;
AVHWFramesConstraints *constraints = NULL;
VAStatus vas;
int err, i, j;
const AVCodecDescriptor *codec_desc;
VAProfile profile, va_profile, *profile_list = NULL;
int profile_count, exact_match, alt_profile;
const AVPixFmtDescriptor *sw_desc, *desc;
codec_desc = avcodec_descriptor_get(avctx->codec_id);
if (!codec_desc) {
err = AVERROR(EINVAL);
goto fail;
}
profile_count = vaMaxNumProfiles(ctx->hwctx->display);
profile_list = av_malloc_array(profile_count,
sizeof(VAProfile));
if (!profile_list) {
err = AVERROR(ENOMEM);
goto fail;
}
vas = vaQueryConfigProfiles(ctx->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;
}
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)
profile_match = 1;
profile = vaapi_profile_map[i].va_profile;
for (j = 0; j < profile_count; j++) {
if (profile == profile_list[j]) {
exact_match = profile_match;
break;
}
}
if (j < profile_count) {
if (exact_match)
break;
alt_profile = vaapi_profile_map[i].codec_profile;
va_profile = vaapi_profile_map[i].va_profile;
}
}
av_freep(&profile_list);
if (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",
alt_profile);
profile = va_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;
}
}
ctx->va_profile = profile;
ctx->va_entrypoint = VAEntrypointVLD;
vas = vaCreateConfig(ctx->hwctx->display, ctx->va_profile,
ctx->va_entrypoint, NULL, 0,
&ctx->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(avctx->hw_device_ctx ?
avctx->hw_device_ctx :
ctx->frames->device_ref);
if (!hwconfig) {
err = AVERROR(ENOMEM);
goto fail;
}
hwconfig->config_id = ctx->va_config;
constraints =
av_hwdevice_get_hwframe_constraints(avctx->hw_device_ctx ?
avctx->hw_device_ctx :
ctx->frames->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;
}
// Find the first format in the list which matches the expected
// bit depth and subsampling. If none are found (this can happen
// when 10-bit streams are decoded to 8-bit surfaces, for example)
// then just take the first format on the list.
ctx->surface_format = constraints->valid_sw_formats[0];
sw_desc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) {
desc = av_pix_fmt_desc_get(constraints->valid_sw_formats[i]);
if (desc->nb_components != sw_desc->nb_components ||
desc->log2_chroma_w != sw_desc->log2_chroma_w ||
desc->log2_chroma_h != sw_desc->log2_chroma_h)
continue;
for (j = 0; j < desc->nb_components; j++) {
if (desc->comp[j].depth != sw_desc->comp[j].depth)
break;
}
if (j < desc->nb_components)
continue;
ctx->surface_format = constraints->valid_sw_formats[i];
break;
}
// Start with at least four surfaces.
ctx->surface_count = 4;
// 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:
ctx->surface_count += 16;
break;
case AV_CODEC_ID_VP9:
ctx->surface_count += 8;
break;
case AV_CODEC_ID_VP8:
ctx->surface_count += 3;
break;
default:
ctx->surface_count += 2;
}
// Add an additional surface per thread is frame threading is enabled.
if (avctx->active_thread_type & FF_THREAD_FRAME)
ctx->surface_count += avctx->thread_count;
av_hwframe_constraints_free(&constraints);
av_freep(&hwconfig);
return 0;
fail:
av_hwframe_constraints_free(&constraints);
av_freep(&hwconfig);
if (ctx->va_config != VA_INVALID_ID) {
vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
ctx->va_config = VA_INVALID_ID;
}
av_freep(&profile_list);
return err;
}
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;
#if FF_API_STRUCT_VAAPI_CONTEXT
if (avctx->hwaccel_context) {
av_log(avctx, AV_LOG_WARNING, "Using deprecated struct "
"vaapi_context in decode.\n");
ctx->have_old_context = 1;
ctx->old_context = avctx->hwaccel_context;
// Really we only want the VAAPI device context, but this
// allocates a whole generic device context because we don't
// have any other way to determine how big it should be.
ctx->device_ref =
av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_VAAPI);
if (!ctx->device_ref) {
err = AVERROR(ENOMEM);
goto fail;
}
ctx->device = (AVHWDeviceContext*)ctx->device_ref->data;
ctx->hwctx = ctx->device->hwctx;
ctx->hwctx->display = ctx->old_context->display;
// The old VAAPI decode setup assumed this quirk was always
// present, so set it here to avoid the behaviour changing.
ctx->hwctx->driver_quirks =
AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS;
} else
#endif
if (avctx->hw_frames_ctx) {
// This structure has a shorter lifetime than the enclosing
// AVCodecContext, so we inherit the references from there
// and do not need to make separate ones.
ctx->frames = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
ctx->hwfc = ctx->frames->hwctx;
ctx->device = ctx->frames->device_ctx;
ctx->hwctx = ctx->device->hwctx;
} else if (avctx->hw_device_ctx) {
ctx->device = (AVHWDeviceContext*)avctx->hw_device_ctx->data;
ctx->hwctx = ctx->device->hwctx;
if (ctx->device->type != AV_HWDEVICE_TYPE_VAAPI) {
av_log(avctx, AV_LOG_ERROR, "Device supplied for VAAPI "
"decoding must be a VAAPI device (not %d).\n",
ctx->device->type);
err = AVERROR(EINVAL);
goto fail;
}
} else {
av_log(avctx, AV_LOG_ERROR, "A hardware device or frames context "
"is required for VAAPI decoding.\n");
err = AVERROR(EINVAL);
goto fail;
}
#if FF_API_STRUCT_VAAPI_CONTEXT
if (ctx->have_old_context) {
ctx->va_config = ctx->old_context->config_id;
ctx->va_context = ctx->old_context->context_id;
av_log(avctx, AV_LOG_DEBUG, "Using user-supplied decoder "
"context: %#x/%#x.\n", ctx->va_config, ctx->va_context);
} else {
#endif
err = vaapi_decode_make_config(avctx);
if (err)
goto fail;
if (!avctx->hw_frames_ctx) {
avctx->hw_frames_ctx = av_hwframe_ctx_alloc(avctx->hw_device_ctx);
if (!avctx->hw_frames_ctx) {
err = AVERROR(ENOMEM);
goto fail;
}
ctx->frames = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
ctx->frames->format = AV_PIX_FMT_VAAPI;
ctx->frames->width = avctx->coded_width;
ctx->frames->height = avctx->coded_height;
ctx->frames->sw_format = ctx->surface_format;
ctx->frames->initial_pool_size = ctx->surface_count;
err = av_hwframe_ctx_init(avctx->hw_frames_ctx);
if (err < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to initialise internal "
"frames context: %d.\n", err);
goto fail;
}
ctx->hwfc = ctx->frames->hwctx;
}
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);
#if FF_API_STRUCT_VAAPI_CONTEXT
}
#endif
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 FF_API_STRUCT_VAAPI_CONTEXT
if (ctx->have_old_context) {
av_buffer_unref(&ctx->device_ref);
} else {
#endif
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));
}
}
#if FF_API_STRUCT_VAAPI_CONTEXT
}
#endif
return 0;
}