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ffmpeg: Use codec hardware config to configure hwaccels

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Removes specific support for all hwaccels supported by the generic code
(DXVA2, D3D11VA, NVDEC, VAAPI and VDPAU).
This commit is contained in:
Mark Thompson 2017-10-26 00:18:47 +01:00
parent 3a71bcc213
commit b0cd14fb1d
4 changed files with 254 additions and 136 deletions
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77
fftools/ffmpeg.c
View file

@ -2792,45 +2792,77 @@ fail:
av_freep(&avc);
}
static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt, enum HWAccelID selected_hwaccel_id)
{
int i;
for (i = 0; hwaccels[i].name; i++)
if (hwaccels[i].pix_fmt == pix_fmt &&
(!selected_hwaccel_id || selected_hwaccel_id == HWACCEL_AUTO || hwaccels[i].id == selected_hwaccel_id))
return &hwaccels[i];
return NULL;
}
static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
{
InputStream *ist = s->opaque;
const enum AVPixelFormat *p;
int ret;
for (p = pix_fmts; *p != -1; p++) {
for (p = pix_fmts; *p != AV_PIX_FMT_NONE; p++) {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
const HWAccel *hwaccel;
const AVCodecHWConfig *config = NULL;
int i;
if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
break;
hwaccel = get_hwaccel(*p, ist->hwaccel_id);
if (!hwaccel ||
(ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
(ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
continue;
if (ist->hwaccel_id == HWACCEL_GENERIC ||
ist->hwaccel_id == HWACCEL_AUTO) {
for (i = 0;; i++) {
config = avcodec_get_hw_config(s->codec, i);
if (!config)
break;
if (!(config->methods &
AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX))
continue;
if (config->pix_fmt == *p)
break;
}
}
if (config) {
if (config->device_type != ist->hwaccel_device_type) {
// Different hwaccel offered, ignore.
continue;
}
ret = hwaccel->init(s);
if (ret < 0) {
if (ist->hwaccel_id == hwaccel->id) {
ret = hwaccel_decode_init(s);
if (ret < 0) {
if (ist->hwaccel_id == HWACCEL_GENERIC) {
av_log(NULL, AV_LOG_FATAL,
"%s hwaccel requested for input stream #%d:%d, "
"but cannot be initialized.\n",
av_hwdevice_get_type_name(config->device_type),
ist->file_index, ist->st->index);
return AV_PIX_FMT_NONE;
}
continue;
}
} else {
const HWAccel *hwaccel = NULL;
int i;
for (i = 0; hwaccels[i].name; i++) {
if (hwaccels[i].pix_fmt == *p) {
hwaccel = &hwaccels[i];
break;
}
}
if (!hwaccel) {
// No hwaccel supporting this pixfmt.
continue;
}
if (hwaccel->id != ist->hwaccel_id) {
// Does not match requested hwaccel.
continue;
}
ret = hwaccel->init(s);
if (ret < 0) {
av_log(NULL, AV_LOG_FATAL,
"%s hwaccel requested for input stream #%d:%d, "
"but cannot be initialized.\n", hwaccel->name,
ist->file_index, ist->st->index);
return AV_PIX_FMT_NONE;
}
continue;
}
if (ist->hw_frames_ctx) {
@ -2839,8 +2871,7 @@ static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat
return AV_PIX_FMT_NONE;
}
ist->active_hwaccel_id = hwaccel->id;
ist->hwaccel_pix_fmt = *p;
ist->hwaccel_pix_fmt = *p;
break;
}