static enum PixelFormat ffmpeg_GetFormat( AVCodecContext *p_context,
const enum PixelFormat *pi_fmt )
{
decoder_t *p_dec = p_context->opaque;
decoder_sys_t *p_sys = p_dec->p_sys;
vlc_va_t *p_va = p_sys->p_va;
if( p_va != NULL )
vlc_va_Delete( p_va );
/* Enumerate available formats */
bool can_hwaccel = false;
for( size_t i = 0; pi_fmt[i] != PIX_FMT_NONE; i++ )
{
const AVPixFmtDescriptor *dsc = av_pix_fmt_desc_get(pi_fmt[i]);
if (dsc == NULL)
continue;
bool hwaccel = (dsc->flags & AV_PIX_FMT_FLAG_HWACCEL) != 0;
msg_Dbg( p_dec, "available %sware decoder output format %d (%s)",
hwaccel ? "hard" : "soft", pi_fmt[i], dsc->name );
if (hwaccel)
can_hwaccel = true;
}
if (!can_hwaccel)
goto end;
/* Profile and level information is needed now.
* TODO: avoid code duplication with avcodec.c */
if( p_context->profile != FF_PROFILE_UNKNOWN)
p_dec->fmt_in.i_profile = p_context->profile;
if( p_context->level != FF_LEVEL_UNKNOWN)
p_dec->fmt_in.i_level = p_context->level;
p_va = vlc_va_New( VLC_OBJECT(p_dec), p_context, &p_dec->fmt_in );
if( p_va == NULL )
goto end;
for( size_t i = 0; pi_fmt[i] != PIX_FMT_NONE; i++ )
{
if( p_va->pix_fmt != pi_fmt[i] )
continue;
/* We try to call vlc_va_Setup when possible to detect errors when
* possible (later is too late) */
if( p_context->width > 0 && p_context->height > 0
&& vlc_va_Setup( p_va, &p_context->hwaccel_context,
&p_dec->fmt_out.video.i_chroma,
p_context->width, p_context->height ) )
{
msg_Err( p_dec, "acceleration setup failure" );
break;
}
if( p_va->description )
msg_Info( p_dec, "Using %s for hardware decoding.",
p_va->description );
/* FIXME this will disable direct rendering
* even if a new pixel format is renegotiated
*/
p_sys->b_direct_rendering = false;
p_sys->p_va = p_va;
p_context->draw_horiz_band = NULL;
return pi_fmt[i];
}
vlc_va_Delete( p_va );
end:
/* Fallback to default behaviour */
p_sys->p_va = NULL;
return avcodec_default_get_format( p_context, pi_fmt );
}
static enum PixelFormat ffmpeg_GetFormat( AVCodecContext *p_context,
const enum PixelFormat *pi_fmt )
{
decoder_t *p_dec = p_context->opaque;
decoder_sys_t *p_sys = p_dec->p_sys;
if (p_sys->p_va != NULL)
{
vlc_va_Delete(p_sys->p_va, p_context);
p_sys->p_va = NULL;
}
/* Enumerate available formats */
enum PixelFormat swfmt = avcodec_default_get_format(p_context, pi_fmt);
bool can_hwaccel = false;
for( size_t i = 0; pi_fmt[i] != PIX_FMT_NONE; i++ )
{
const AVPixFmtDescriptor *dsc = av_pix_fmt_desc_get(pi_fmt[i]);
if (dsc == NULL)
continue;
bool hwaccel = (dsc->flags & AV_PIX_FMT_FLAG_HWACCEL) != 0;
msg_Dbg( p_dec, "available %sware decoder output format %d (%s)",
hwaccel ? "hard" : "soft", pi_fmt[i], dsc->name );
if (hwaccel)
can_hwaccel = true;
}
if (!can_hwaccel)
return swfmt;
for( size_t i = 0; pi_fmt[i] != PIX_FMT_NONE; i++ )
{
enum PixelFormat hwfmt = pi_fmt[i];
p_dec->fmt_out.video.i_chroma = vlc_va_GetChroma(hwfmt, swfmt);
if (p_dec->fmt_out.video.i_chroma == 0)
continue; /* Unknown brand of hardware acceleration */
if (lavc_UpdateVideoFormat(p_dec, p_context, true))
continue; /* Unsupported brand of hardware acceleration */
vlc_va_t *va = vlc_va_New(VLC_OBJECT(p_dec), p_context, hwfmt,
&p_dec->fmt_in);
if (va == NULL)
continue; /* Unsupported codec profile or such */
/* We try to call vlc_va_Setup when possible to detect errors when
* possible (later is too late) */
if( p_context->width > 0 && p_context->height > 0
&& vlc_va_Setup(va, p_context, &p_dec->fmt_out.video.i_chroma))
{
msg_Err( p_dec, "acceleration setup failure" );
vlc_va_Delete(va, p_context);
continue;
}
if (va->description != NULL)
msg_Info(p_dec, "Using %s for hardware decoding", va->description);
/* FIXME this will disable direct rendering
* even if a new pixel format is renegotiated
*/
p_sys->b_direct_rendering = false;
p_sys->p_va = va;
p_context->draw_horiz_band = NULL;
return pi_fmt[i];
}
/* Fallback to default behaviour */
return swfmt;
}
