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avconv_qsv: use the device creation API

tags/n3.3
Anton Khirnov 9 years ago
parent
232399e3ee
commit
02c2761973
1 changed files with 38 additions and 209 deletions
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  1. +38
    -209
      avconv_qsv.c

+ 38
- 209
avconv_qsv.c View File

@@ -20,248 +20,77 @@
#include <stdlib.h>

#include "libavutil/dict.h"
#include "libavutil/hwcontext.h"
#include "libavutil/hwcontext_qsv.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavcodec/qsv.h"

#include "avconv.h"

typedef struct QSVContext {
OutputStream *ost;

mfxSession session;

mfxExtOpaqueSurfaceAlloc opaque_alloc;
AVBufferRef *opaque_surfaces_buf;

uint8_t *surface_used;
mfxFrameSurface1 **surface_ptrs;
int nb_surfaces;

mfxExtBuffer *ext_buffers[1];
} QSVContext;

static void buffer_release(void *opaque, uint8_t *data)
{
*(uint8_t*)opaque = 0;
}

static int qsv_get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
{
InputStream *ist = s->opaque;
QSVContext *qsv = ist->hwaccel_ctx;
int i;

for (i = 0; i < qsv->nb_surfaces; i++) {
if (qsv->surface_used[i])
continue;

frame->buf[0] = av_buffer_create((uint8_t*)qsv->surface_ptrs[i], sizeof(*qsv->surface_ptrs[i]),
buffer_release, &qsv->surface_used[i], 0);
if (!frame->buf[0])
return AVERROR(ENOMEM);
frame->data[3] = (uint8_t*)qsv->surface_ptrs[i];
qsv->surface_used[i] = 1;
return 0;
}

return AVERROR(ENOMEM);
}

static int init_opaque_surf(QSVContext *qsv)
{
AVQSVContext *hwctx_enc = qsv->ost->enc_ctx->hwaccel_context;
mfxFrameSurface1 *surfaces;
int i;

qsv->nb_surfaces = hwctx_enc->nb_opaque_surfaces;

qsv->opaque_surfaces_buf = av_buffer_ref(hwctx_enc->opaque_surfaces);
qsv->surface_ptrs = av_mallocz_array(qsv->nb_surfaces, sizeof(*qsv->surface_ptrs));
qsv->surface_used = av_mallocz_array(qsv->nb_surfaces, sizeof(*qsv->surface_used));
if (!qsv->opaque_surfaces_buf || !qsv->surface_ptrs || !qsv->surface_used)
return AVERROR(ENOMEM);

surfaces = (mfxFrameSurface1*)qsv->opaque_surfaces_buf->data;
for (i = 0; i < qsv->nb_surfaces; i++)
qsv->surface_ptrs[i] = surfaces + i;

qsv->opaque_alloc.Out.Surfaces = qsv->surface_ptrs;
qsv->opaque_alloc.Out.NumSurface = qsv->nb_surfaces;
qsv->opaque_alloc.Out.Type = hwctx_enc->opaque_alloc_type;

qsv->opaque_alloc.Header.BufferId = MFX_EXTBUFF_OPAQUE_SURFACE_ALLOCATION;
qsv->opaque_alloc.Header.BufferSz = sizeof(qsv->opaque_alloc);
qsv->ext_buffers[0] = (mfxExtBuffer*)&qsv->opaque_alloc;

return 0;
return av_hwframe_get_buffer(ist->hw_frames_ctx, frame, 0);
}

static void qsv_uninit(AVCodecContext *s)
{
InputStream *ist = s->opaque;
QSVContext *qsv = ist->hwaccel_ctx;

av_freep(&qsv->ost->enc_ctx->hwaccel_context);
av_freep(&s->hwaccel_context);

av_buffer_unref(&qsv->opaque_surfaces_buf);
av_freep(&qsv->surface_used);
av_freep(&qsv->surface_ptrs);

av_freep(&qsv);
av_buffer_unref(&ist->hw_frames_ctx);
}

int qsv_init(AVCodecContext *s)
static int qsv_device_init(InputStream *ist)
{
InputStream *ist = s->opaque;
QSVContext *qsv = ist->hwaccel_ctx;
AVQSVContext *hwctx_dec;
int ret;
int err;

if (!qsv) {
av_log(NULL, AV_LOG_ERROR, "QSV transcoding is not initialized. "
"-hwaccel qsv should only be used for one-to-one QSV transcoding "
"with no filters.\n");
return AVERROR_BUG;
err = av_hwdevice_ctx_create(&hw_device_ctx, AV_HWDEVICE_TYPE_QSV,
ist->hwaccel_device, NULL, 0);
if (err < 0) {
av_log(NULL, AV_LOG_ERROR, "Error creating a QSV device\n");
return err;
}

ret = init_opaque_surf(qsv);
if (ret < 0)
return ret;

hwctx_dec = av_qsv_alloc_context();
if (!hwctx_dec)
return AVERROR(ENOMEM);

hwctx_dec->session = qsv->session;
hwctx_dec->iopattern = MFX_IOPATTERN_OUT_OPAQUE_MEMORY;
hwctx_dec->ext_buffers = qsv->ext_buffers;
hwctx_dec->nb_ext_buffers = FF_ARRAY_ELEMS(qsv->ext_buffers);

av_freep(&s->hwaccel_context);
s->hwaccel_context = hwctx_dec;

ist->hwaccel_get_buffer = qsv_get_buffer;
ist->hwaccel_uninit = qsv_uninit;

return 0;
}

static mfxIMPL choose_implementation(const InputStream *ist)
int qsv_init(AVCodecContext *s)
{
static const struct {
const char *name;
mfxIMPL impl;
} impl_map[] = {
{ "auto", MFX_IMPL_AUTO },
{ "sw", MFX_IMPL_SOFTWARE },
{ "hw", MFX_IMPL_HARDWARE },
{ "auto_any", MFX_IMPL_AUTO_ANY },
{ "hw_any", MFX_IMPL_HARDWARE_ANY },
{ "hw2", MFX_IMPL_HARDWARE2 },
{ "hw3", MFX_IMPL_HARDWARE3 },
{ "hw4", MFX_IMPL_HARDWARE4 },
};

mfxIMPL impl = MFX_IMPL_AUTO_ANY;
int i;
InputStream *ist = s->opaque;
AVHWFramesContext *frames_ctx;
AVQSVFramesContext *frames_hwctx;
int ret;

if (ist->hwaccel_device) {
for (i = 0; i < FF_ARRAY_ELEMS(impl_map); i++)
if (!strcmp(ist->hwaccel_device, impl_map[i].name)) {
impl = impl_map[i].impl;
break;
}
if (i == FF_ARRAY_ELEMS(impl_map))
impl = strtol(ist->hwaccel_device, NULL, 0);
if (!hw_device_ctx) {
ret = qsv_device_init(ist);
if (ret < 0)
return ret;
}

return impl;
}

int qsv_transcode_init(OutputStream *ost)
{
InputStream *ist;
const enum AVPixelFormat *pix_fmt;

AVDictionaryEntry *e;
const AVOption *opt;
int flags = 0;

int err, i;

QSVContext *qsv = NULL;
AVQSVContext *hwctx = NULL;
mfxIMPL impl;
mfxVersion ver = { { 3, 1 } };

/* check if the encoder supports QSV */
if (!ost->enc->pix_fmts)
return 0;
for (pix_fmt = ost->enc->pix_fmts; *pix_fmt != AV_PIX_FMT_NONE; pix_fmt++)
if (*pix_fmt == AV_PIX_FMT_QSV)
break;
if (*pix_fmt == AV_PIX_FMT_NONE)
return 0;

if (strcmp(ost->avfilter, "null") || ost->source_index < 0)
return 0;

/* check if the decoder supports QSV and the output only goes to this stream */
ist = input_streams[ost->source_index];
if (ist->nb_filters || ist->hwaccel_id != HWACCEL_QSV ||
!ist->dec || !ist->dec->pix_fmts)
return 0;
for (pix_fmt = ist->dec->pix_fmts; *pix_fmt != AV_PIX_FMT_NONE; pix_fmt++)
if (*pix_fmt == AV_PIX_FMT_QSV)
break;
if (*pix_fmt == AV_PIX_FMT_NONE)
return 0;

for (i = 0; i < nb_output_streams; i++)
if (output_streams[i] != ost &&
output_streams[i]->source_index == ost->source_index)
return 0;

av_log(NULL, AV_LOG_VERBOSE, "Setting up QSV transcoding\n");
av_buffer_unref(&ist->hw_frames_ctx);
ist->hw_frames_ctx = av_hwframe_ctx_alloc(hw_device_ctx);
if (!ist->hw_frames_ctx)
return AVERROR(ENOMEM);

qsv = av_mallocz(sizeof(*qsv));
hwctx = av_qsv_alloc_context();
if (!qsv || !hwctx)
goto fail;
frames_ctx = (AVHWFramesContext*)ist->hw_frames_ctx->data;
frames_hwctx = frames_ctx->hwctx;

impl = choose_implementation(ist);
frames_ctx->width = s->coded_width;
frames_ctx->height = s->coded_height;
frames_ctx->format = AV_PIX_FMT_QSV;
frames_ctx->sw_format = AV_PIX_FMT_NV12;
frames_ctx->initial_pool_size = 32;
frames_hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;

err = MFXInit(impl, &ver, &qsv->session);
if (err != MFX_ERR_NONE) {
av_log(NULL, AV_LOG_ERROR, "Error initializing an MFX session: %d\n", err);
goto fail;
ret = av_hwframe_ctx_init(ist->hw_frames_ctx);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error initializing a QSV frame pool\n");
return ret;
}

e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
opt = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
if (e && opt)
av_opt_eval_flags(ost->enc_ctx, opt, e->value, &flags);

qsv->ost = ost;

hwctx->session = qsv->session;
hwctx->iopattern = MFX_IOPATTERN_IN_OPAQUE_MEMORY;
hwctx->opaque_alloc = 1;
hwctx->nb_opaque_surfaces = 16;

ost->hwaccel_ctx = qsv;
ost->enc_ctx->hwaccel_context = hwctx;
ost->enc_ctx->pix_fmt = AV_PIX_FMT_QSV;

ist->hwaccel_ctx = qsv;
ist->dec_ctx->pix_fmt = AV_PIX_FMT_QSV;
ist->hwaccel_get_buffer = qsv_get_buffer;
ist->hwaccel_uninit = qsv_uninit;

return 0;

fail:
av_freep(&hwctx);
av_freep(&qsv);
return AVERROR_UNKNOWN;
}

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