mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-27 18:02:11 +00:00
32d021cfa6
a thread count of 0 is treated the same as 1, use av_cpu_count() to get
the correct thread count when auto threads is requested.
this matches the fix in libvpxenc:
27df34bf1f avcodec/libvpxenc: fix setting amount of threads used for encoding
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: James Zern <jzern@google.com>
316 lines
11 KiB
C
316 lines
11 KiB
C
/*
|
|
* Copyright (c) 2010, Google, Inc.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* VP8/9 decoder support via libvpx
|
|
*/
|
|
|
|
#define VPX_CODEC_DISABLE_COMPAT 1
|
|
#include <vpx/vpx_decoder.h>
|
|
#include <vpx/vp8dx.h>
|
|
|
|
#include "libavutil/common.h"
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/intreadwrite.h"
|
|
#include "avcodec.h"
|
|
#include "internal.h"
|
|
#include "libvpx.h"
|
|
#include "profiles.h"
|
|
|
|
typedef struct VPxDecoderContext {
|
|
struct vpx_codec_ctx decoder;
|
|
struct vpx_codec_ctx decoder_alpha;
|
|
int has_alpha_channel;
|
|
} VPxContext;
|
|
|
|
static av_cold int vpx_init(AVCodecContext *avctx,
|
|
const struct vpx_codec_iface *iface,
|
|
int is_alpha_decoder)
|
|
{
|
|
VPxContext *ctx = avctx->priv_data;
|
|
struct vpx_codec_dec_cfg deccfg = {
|
|
.threads = FFMIN(avctx->thread_count ? avctx->thread_count : av_cpu_count(), 16)
|
|
};
|
|
|
|
av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
|
|
av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
|
|
|
|
if (vpx_codec_dec_init(
|
|
is_alpha_decoder ? &ctx->decoder_alpha : &ctx->decoder,
|
|
iface, &deccfg, 0) != VPX_CODEC_OK) {
|
|
const char *error = vpx_codec_error(&ctx->decoder);
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to initialize decoder: %s\n",
|
|
error);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// returns 0 on success, AVERROR_INVALIDDATA otherwise
|
|
static int set_pix_fmt(AVCodecContext *avctx, struct vpx_image *img,
|
|
int has_alpha_channel)
|
|
{
|
|
static const enum AVColorSpace colorspaces[8] = {
|
|
AVCOL_SPC_UNSPECIFIED, AVCOL_SPC_BT470BG, AVCOL_SPC_BT709, AVCOL_SPC_SMPTE170M,
|
|
AVCOL_SPC_SMPTE240M, AVCOL_SPC_BT2020_NCL, AVCOL_SPC_RESERVED, AVCOL_SPC_RGB,
|
|
};
|
|
#if VPX_IMAGE_ABI_VERSION >= 4
|
|
static const enum AVColorRange color_ranges[] = {
|
|
AVCOL_RANGE_MPEG, AVCOL_RANGE_JPEG
|
|
};
|
|
avctx->color_range = color_ranges[img->range];
|
|
#endif
|
|
avctx->colorspace = colorspaces[img->cs];
|
|
if (avctx->codec_id == AV_CODEC_ID_VP8 && img->fmt != VPX_IMG_FMT_I420)
|
|
return AVERROR_INVALIDDATA;
|
|
switch (img->fmt) {
|
|
case VPX_IMG_FMT_I420:
|
|
if (avctx->codec_id == AV_CODEC_ID_VP9)
|
|
avctx->profile = FF_PROFILE_VP9_0;
|
|
avctx->pix_fmt =
|
|
has_alpha_channel ? AV_PIX_FMT_YUVA420P : AV_PIX_FMT_YUV420P;
|
|
return 0;
|
|
#if CONFIG_LIBVPX_VP9_DECODER
|
|
case VPX_IMG_FMT_I422:
|
|
avctx->profile = FF_PROFILE_VP9_1;
|
|
avctx->pix_fmt = AV_PIX_FMT_YUV422P;
|
|
return 0;
|
|
case VPX_IMG_FMT_I440:
|
|
avctx->profile = FF_PROFILE_VP9_1;
|
|
avctx->pix_fmt = AV_PIX_FMT_YUV440P;
|
|
return 0;
|
|
case VPX_IMG_FMT_I444:
|
|
avctx->profile = FF_PROFILE_VP9_1;
|
|
avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ?
|
|
AV_PIX_FMT_GBRP : AV_PIX_FMT_YUV444P;
|
|
return 0;
|
|
case VPX_IMG_FMT_I42016:
|
|
avctx->profile = FF_PROFILE_VP9_2;
|
|
if (img->bit_depth == 10) {
|
|
avctx->pix_fmt = AV_PIX_FMT_YUV420P10;
|
|
return 0;
|
|
} else if (img->bit_depth == 12) {
|
|
avctx->pix_fmt = AV_PIX_FMT_YUV420P12;
|
|
return 0;
|
|
} else {
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
case VPX_IMG_FMT_I42216:
|
|
avctx->profile = FF_PROFILE_VP9_3;
|
|
if (img->bit_depth == 10) {
|
|
avctx->pix_fmt = AV_PIX_FMT_YUV422P10;
|
|
return 0;
|
|
} else if (img->bit_depth == 12) {
|
|
avctx->pix_fmt = AV_PIX_FMT_YUV422P12;
|
|
return 0;
|
|
} else {
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
case VPX_IMG_FMT_I44016:
|
|
avctx->profile = FF_PROFILE_VP9_3;
|
|
if (img->bit_depth == 10) {
|
|
avctx->pix_fmt = AV_PIX_FMT_YUV440P10;
|
|
return 0;
|
|
} else if (img->bit_depth == 12) {
|
|
avctx->pix_fmt = AV_PIX_FMT_YUV440P12;
|
|
return 0;
|
|
} else {
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
case VPX_IMG_FMT_I44416:
|
|
avctx->profile = FF_PROFILE_VP9_3;
|
|
if (img->bit_depth == 10) {
|
|
avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ?
|
|
AV_PIX_FMT_GBRP10 : AV_PIX_FMT_YUV444P10;
|
|
return 0;
|
|
} else if (img->bit_depth == 12) {
|
|
avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ?
|
|
AV_PIX_FMT_GBRP12 : AV_PIX_FMT_YUV444P12;
|
|
return 0;
|
|
} else {
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
#endif
|
|
default:
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
|
|
static int decode_frame(AVCodecContext *avctx, vpx_codec_ctx_t *decoder,
|
|
uint8_t *data, uint32_t data_sz)
|
|
{
|
|
if (vpx_codec_decode(decoder, data, data_sz, NULL, 0) != VPX_CODEC_OK) {
|
|
const char *error = vpx_codec_error(decoder);
|
|
const char *detail = vpx_codec_error_detail(decoder);
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to decode frame: %s\n", error);
|
|
if (detail) {
|
|
av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n",
|
|
detail);
|
|
}
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int vpx_decode(AVCodecContext *avctx,
|
|
void *data, int *got_frame, AVPacket *avpkt)
|
|
{
|
|
VPxContext *ctx = avctx->priv_data;
|
|
AVFrame *picture = data;
|
|
const void *iter = NULL;
|
|
const void *iter_alpha = NULL;
|
|
struct vpx_image *img, *img_alpha;
|
|
int ret;
|
|
uint8_t *side_data = NULL;
|
|
int side_data_size = 0;
|
|
|
|
ret = decode_frame(avctx, &ctx->decoder, avpkt->data, avpkt->size);
|
|
if (ret)
|
|
return ret;
|
|
|
|
side_data = av_packet_get_side_data(avpkt,
|
|
AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
|
|
&side_data_size);
|
|
if (side_data_size > 1) {
|
|
const uint64_t additional_id = AV_RB64(side_data);
|
|
side_data += 8;
|
|
side_data_size -= 8;
|
|
if (additional_id == 1) { // 1 stands for alpha channel data.
|
|
if (!ctx->has_alpha_channel) {
|
|
ctx->has_alpha_channel = 1;
|
|
ret = vpx_init(avctx,
|
|
#if CONFIG_LIBVPX_VP8_DECODER && CONFIG_LIBVPX_VP9_DECODER
|
|
(avctx->codec_id == AV_CODEC_ID_VP8) ?
|
|
&vpx_codec_vp8_dx_algo : &vpx_codec_vp9_dx_algo,
|
|
#elif CONFIG_LIBVPX_VP8_DECODER
|
|
&vpx_codec_vp8_dx_algo,
|
|
#else
|
|
&vpx_codec_vp9_dx_algo,
|
|
#endif
|
|
1);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
ret = decode_frame(avctx, &ctx->decoder_alpha, side_data,
|
|
side_data_size);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if ((img = vpx_codec_get_frame(&ctx->decoder, &iter)) &&
|
|
(!ctx->has_alpha_channel ||
|
|
(img_alpha = vpx_codec_get_frame(&ctx->decoder_alpha, &iter_alpha)))) {
|
|
uint8_t *planes[4];
|
|
int linesizes[4];
|
|
|
|
if (img->d_w > img->w || img->d_h > img->h) {
|
|
av_log(avctx, AV_LOG_ERROR, "Display dimensions %dx%d exceed storage %dx%d\n",
|
|
img->d_w, img->d_h, img->w, img->h);
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
|
|
if ((ret = set_pix_fmt(avctx, img, ctx->has_alpha_channel)) < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Unsupported output colorspace (%d) / bit_depth (%d)\n",
|
|
img->fmt, img->bit_depth);
|
|
return ret;
|
|
}
|
|
|
|
if ((int) img->d_w != avctx->width || (int) img->d_h != avctx->height) {
|
|
av_log(avctx, AV_LOG_INFO, "dimension change! %dx%d -> %dx%d\n",
|
|
avctx->width, avctx->height, img->d_w, img->d_h);
|
|
ret = ff_set_dimensions(avctx, img->d_w, img->d_h);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
if ((ret = ff_get_buffer(avctx, picture, 0)) < 0)
|
|
return ret;
|
|
|
|
planes[0] = img->planes[VPX_PLANE_Y];
|
|
planes[1] = img->planes[VPX_PLANE_U];
|
|
planes[2] = img->planes[VPX_PLANE_V];
|
|
planes[3] =
|
|
ctx->has_alpha_channel ? img_alpha->planes[VPX_PLANE_Y] : NULL;
|
|
linesizes[0] = img->stride[VPX_PLANE_Y];
|
|
linesizes[1] = img->stride[VPX_PLANE_U];
|
|
linesizes[2] = img->stride[VPX_PLANE_V];
|
|
linesizes[3] =
|
|
ctx->has_alpha_channel ? img_alpha->stride[VPX_PLANE_Y] : 0;
|
|
av_image_copy(picture->data, picture->linesize, (const uint8_t**)planes,
|
|
linesizes, avctx->pix_fmt, img->d_w, img->d_h);
|
|
*got_frame = 1;
|
|
}
|
|
return avpkt->size;
|
|
}
|
|
|
|
static av_cold int vpx_free(AVCodecContext *avctx)
|
|
{
|
|
VPxContext *ctx = avctx->priv_data;
|
|
vpx_codec_destroy(&ctx->decoder);
|
|
if (ctx->has_alpha_channel)
|
|
vpx_codec_destroy(&ctx->decoder_alpha);
|
|
return 0;
|
|
}
|
|
|
|
#if CONFIG_LIBVPX_VP8_DECODER
|
|
static av_cold int vp8_init(AVCodecContext *avctx)
|
|
{
|
|
return vpx_init(avctx, &vpx_codec_vp8_dx_algo, 0);
|
|
}
|
|
|
|
AVCodec ff_libvpx_vp8_decoder = {
|
|
.name = "libvpx",
|
|
.long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_VP8,
|
|
.priv_data_size = sizeof(VPxContext),
|
|
.init = vp8_init,
|
|
.close = vpx_free,
|
|
.decode = vpx_decode,
|
|
.capabilities = AV_CODEC_CAP_AUTO_THREADS | AV_CODEC_CAP_DR1,
|
|
.wrapper_name = "libvpx",
|
|
};
|
|
#endif /* CONFIG_LIBVPX_VP8_DECODER */
|
|
|
|
#if CONFIG_LIBVPX_VP9_DECODER
|
|
static av_cold int vp9_init(AVCodecContext *avctx)
|
|
{
|
|
return vpx_init(avctx, &vpx_codec_vp9_dx_algo, 0);
|
|
}
|
|
|
|
AVCodec ff_libvpx_vp9_decoder = {
|
|
.name = "libvpx-vp9",
|
|
.long_name = NULL_IF_CONFIG_SMALL("libvpx VP9"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_VP9,
|
|
.priv_data_size = sizeof(VPxContext),
|
|
.init = vp9_init,
|
|
.close = vpx_free,
|
|
.decode = vpx_decode,
|
|
.capabilities = AV_CODEC_CAP_AUTO_THREADS | AV_CODEC_CAP_DR1,
|
|
.init_static_data = ff_vp9_init_static,
|
|
.profiles = NULL_IF_CONFIG_SMALL(ff_vp9_profiles),
|
|
.wrapper_name = "libvpx",
|
|
};
|
|
#endif /* CONFIG_LIBVPX_VP9_DECODER */
|