Rémi Denis-Courmont
12 years ago
5 changed files with 0 additions and 150 deletions
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/*****************************************************************************
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* hwdummy.c: dummy hardware decoding acceleration plugin for VLC/libav |
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***************************************************************************** |
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* Copyright (C) 2013 Rémi Denis-Courmont |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation; either version 2.1 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. |
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*****************************************************************************/ |
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#ifdef HAVE_CONFIG_H |
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# include "config.h" |
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#endif |
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#include <string.h> |
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#include <stdlib.h> |
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#include <assert.h> |
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#include <libavutil/mem.h> |
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#include <libavcodec/avcodec.h> |
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#include <libavcodec/vdpau.h> |
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#include <vlc_common.h> |
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#include <vlc_plugin.h> |
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#include <vlc_fourcc.h> |
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#include <vlc_picture.h> |
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#include "../../codec/avcodec/va.h" |
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static int Open(vlc_va_t *, AVCodecContext *, const es_format_t *); |
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static void Close(vlc_va_t *); |
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vlc_module_begin() |
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set_description(N_("Dummy video decoder")) |
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set_capability("hw decoder", 0) |
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set_category(CAT_INPUT) |
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set_subcategory(SUBCAT_INPUT_VCODEC) |
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set_callbacks(Open, Close) |
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add_shortcut("dummy") |
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vlc_module_end() |
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#define DECODER_MAGIC 0xdec0dea0 |
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#define DATA_MAGIC 0xda1a0000 |
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#define OPAQUE_MAGIC 0x0da00e00 |
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static int Lock(vlc_va_t *va, void **opaque, uint8_t **data) |
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{ |
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*data = (void *)(uintptr_t)DATA_MAGIC; |
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*opaque = (void *)(uintptr_t)OPAQUE_MAGIC; |
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(void) va; |
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return VLC_SUCCESS; |
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} |
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static void Unlock(void *opaque, uint8_t *data) |
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{ |
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assert((uintptr_t)opaque == OPAQUE_MAGIC); |
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assert((uintptr_t)data == DATA_MAGIC); |
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} |
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static VdpStatus Render(VdpDecoder decoder, VdpVideoSurface target, |
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VdpPictureInfo const *picture_info, |
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uint32_t bitstream_buffer_count, |
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VdpBitstreamBuffer const *bitstream_buffers) |
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{ |
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(void) decoder; (void) target; (void) picture_info; |
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(void) bitstream_buffer_count; (void) bitstream_buffers; |
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assert(decoder == DECODER_MAGIC); |
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assert(target == DATA_MAGIC); |
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return VDP_STATUS_OK; |
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} |
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static int Copy(vlc_va_t *va, picture_t *pic, void *opaque, uint8_t *data) |
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{ |
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(void) va; |
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assert((uintptr_t)opaque == OPAQUE_MAGIC); |
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assert((uintptr_t)data == DATA_MAGIC); |
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/* Put some dummy picture content */ |
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memset(pic->p[0].p_pixels, 0xF0, |
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pic->p[0].i_pitch * pic->p[0].i_visible_lines); |
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for (int i = 0; i < pic->p[1].i_visible_lines; i++) |
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memset(pic->p[1].p_pixels + (i * pic->p[1].i_pitch), i, |
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pic->p[1].i_visible_pitch); |
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for (int i = 0; i < pic->p[2].i_visible_lines; i++) |
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for (int j = 0; j < pic->p[2].i_visible_pitch; j++) |
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pic->p[2].p_pixels[(i * pic->p[2].i_pitch) + j] = j; |
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return VLC_SUCCESS; |
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} |
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static int Setup(vlc_va_t *va, void **ctxp, vlc_fourcc_t *chromap, |
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int width, int height) |
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{ |
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(void) width; (void) height; |
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*ctxp = (AVVDPAUContext *)va->sys; |
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*chromap = VLC_CODEC_YV12; |
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return VLC_SUCCESS; |
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} |
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static int Open(vlc_va_t *va, AVCodecContext *ctx, const es_format_t *fmt) |
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{ |
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union |
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{ |
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char str[4]; |
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vlc_fourcc_t fourcc; |
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} u = { .fourcc = fmt->i_codec }; |
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AVVDPAUContext *hwctx = av_vdpau_alloc_context(); |
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if (unlikely(hwctx == NULL)) |
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return VLC_ENOMEM; |
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msg_Dbg(va, "codec %d (%4.4s) profile %d level %d", ctx->codec_id, u.str, |
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fmt->i_profile, fmt->i_level); |
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hwctx->decoder = DECODER_MAGIC; |
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hwctx->render = Render; |
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va->sys = (vlc_va_sys_t *)hwctx; |
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va->description = "Dummy video decoding accelerator"; |
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va->pix_fmt = AV_PIX_FMT_VDPAU; |
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va->setup = Setup; |
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va->get = Lock; |
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va->release = Unlock; |
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va->extract = Copy; |
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return VLC_SUCCESS; |
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} |
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static void Close(vlc_va_t *va) |
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{ |
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av_free(va->sys); |
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} |
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