[deb_ffmpeg.git] / ffmpeg / libavcodec / libx265.c

/*
 * libx265 encoder
 *
 * Copyright (c) 2013-2014 Derek Buitenhuis
 *
 * 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
 */

#if defined(_MSC_VER)
#define X265_API_IMPORTS 1
#endif

#include <x265.h>

#include "libavutil/internal.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "internal.h"

typedef struct libx265Context {
    const AVClass *class;

    x265_encoder *encoder;
    x265_param   *params;

    char *preset;
    char *tune;
    char *x265_opts;
} libx265Context;

static int is_keyframe(NalUnitType naltype)
{
    switch (naltype) {
    case NAL_UNIT_CODED_SLICE_BLA_W_LP:
    case NAL_UNIT_CODED_SLICE_BLA_W_RADL:
    case NAL_UNIT_CODED_SLICE_BLA_N_LP:
    case NAL_UNIT_CODED_SLICE_IDR_W_RADL:
    case NAL_UNIT_CODED_SLICE_IDR_N_LP:
    case NAL_UNIT_CODED_SLICE_CRA:
        return 1;
    default:
        return 0;
    }
}

static av_cold int libx265_encode_close(AVCodecContext *avctx)
{
    libx265Context *ctx = avctx->priv_data;

    av_frame_free(&avctx->coded_frame);

    x265_param_free(ctx->params);

    if (ctx->encoder)
        x265_encoder_close(ctx->encoder);

    return 0;
}

static av_cold int libx265_encode_init(AVCodecContext *avctx)
{
    libx265Context *ctx = avctx->priv_data;
    x265_nal *nal;
    char sar[12];
    int sar_num, sar_den;
    int nnal;

    if (avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL &&
        !av_pix_fmt_desc_get(avctx->pix_fmt)->log2_chroma_w) {
        av_log(avctx, AV_LOG_ERROR,
               "4:2:2 and 4:4:4 support is not fully defined for HEVC yet. "
               "Set -strict experimental to encode anyway.\n");
        return AVERROR(ENOSYS);
    }

    avctx->coded_frame = av_frame_alloc();
    if (!avctx->coded_frame) {
        av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
        return AVERROR(ENOMEM);
    }

    ctx->params = x265_param_alloc();
    if (!ctx->params) {
        av_log(avctx, AV_LOG_ERROR, "Could not allocate x265 param structure.\n");
        return AVERROR(ENOMEM);
    }

    if (x265_param_default_preset(ctx->params, ctx->preset, ctx->tune) < 0) {
        av_log(avctx, AV_LOG_ERROR, "Invalid preset or tune.\n");
        return AVERROR(EINVAL);
    }

    ctx->params->frameNumThreads = avctx->thread_count;
    ctx->params->fpsNum          = avctx->time_base.den;
    ctx->params->fpsDenom        = avctx->time_base.num * avctx->ticks_per_frame;
    ctx->params->sourceWidth     = avctx->width;
    ctx->params->sourceHeight    = avctx->height;

    if (avctx->sample_aspect_ratio.num > 0 && avctx->sample_aspect_ratio.den > 0) {
        av_reduce(&sar_num, &sar_den,
                  avctx->sample_aspect_ratio.num,
                  avctx->sample_aspect_ratio.den, 65535);
        snprintf(sar, sizeof(sar), "%d:%d", sar_num, sar_den);
        if (x265_param_parse(ctx->params, "sar", sar) == X265_PARAM_BAD_VALUE) {
            av_log(avctx, AV_LOG_ERROR, "Invalid SAR: %d:%d.\n", sar_num, sar_den);
            return AVERROR_INVALIDDATA;
        }
    }

    switch (avctx->pix_fmt) {
    case AV_PIX_FMT_YUV420P:
    case AV_PIX_FMT_YUV420P10:
        ctx->params->internalCsp = X265_CSP_I420;
        break;
    case AV_PIX_FMT_YUV422P:
    case AV_PIX_FMT_YUV422P10:
        ctx->params->internalCsp = X265_CSP_I422;
        break;
    case AV_PIX_FMT_YUV444P:
    case AV_PIX_FMT_YUV444P10:
        ctx->params->internalCsp = X265_CSP_I444;
        break;
    }

    if (avctx->bit_rate > 0) {
        ctx->params->rc.bitrate         = avctx->bit_rate / 1000;
        ctx->params->rc.rateControlMode = X265_RC_ABR;
    }

    if (!(avctx->flags & CODEC_FLAG_GLOBAL_HEADER))
        ctx->params->bRepeatHeaders = 1;

    if (ctx->x265_opts) {
        AVDictionary *dict    = NULL;
        AVDictionaryEntry *en = NULL;

        if (!av_dict_parse_string(&dict, ctx->x265_opts, "=", ":", 0)) {
            while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
                int parse_ret = x265_param_parse(ctx->params, en->key, en->value);

                switch (parse_ret) {
                case X265_PARAM_BAD_NAME:
                    av_log(avctx, AV_LOG_WARNING,
                          "Unknown option: %s.\n", en->key);
                    break;
                case X265_PARAM_BAD_VALUE:
                    av_log(avctx, AV_LOG_WARNING,
                          "Invalid value for %s: %s.\n", en->key, en->value);
                    break;
                default:
                    break;
                }
            }
            av_dict_free(&dict);
        }
    }

    ctx->encoder = x265_encoder_open(ctx->params);
    if (!ctx->encoder) {
        av_log(avctx, AV_LOG_ERROR, "Cannot open libx265 encoder.\n");
        libx265_encode_close(avctx);
        return AVERROR_INVALIDDATA;
    }

    if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
        avctx->extradata_size = x265_encoder_headers(ctx->encoder, &nal, &nnal);
        if (avctx->extradata_size <= 0) {
            av_log(avctx, AV_LOG_ERROR, "Cannot encode headers.\n");
            libx265_encode_close(avctx);
            return AVERROR_INVALIDDATA;
        }

        avctx->extradata = av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
        if (!avctx->extradata) {
            av_log(avctx, AV_LOG_ERROR,
                   "Cannot allocate HEVC header of size %d.\n", avctx->extradata_size);
            libx265_encode_close(avctx);
            return AVERROR(ENOMEM);
        }

        memcpy(avctx->extradata, nal[0].payload, avctx->extradata_size);
    }

    return 0;
}

static int libx265_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
                                const AVFrame *pic, int *got_packet)
{
    libx265Context *ctx = avctx->priv_data;
    x265_picture x265pic;
    x265_picture x265pic_out = { { 0 } };
    x265_nal *nal;
    uint8_t *dst;
    int payload = 0;
    int nnal;
    int ret;
    int i;

    x265_picture_init(ctx->params, &x265pic);

    if (pic) {
        for (i = 0; i < 3; i++) {
           x265pic.planes[i] = pic->data[i];
           x265pic.stride[i] = pic->linesize[i];
        }

        x265pic.pts      = pic->pts;
        x265pic.bitDepth = av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth_minus1 + 1;
    }

    ret = x265_encoder_encode(ctx->encoder, &nal, &nnal,
                              pic ? &x265pic : NULL, &x265pic_out);
    if (ret < 0)
        return AVERROR_EXTERNAL;

    if (!nnal)
        return 0;

    for (i = 0; i < nnal; i++)
        payload += nal[i].sizeBytes;

    ret = ff_alloc_packet(pkt, payload);
    if (ret < 0) {
        av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
        return ret;
    }
    dst = pkt->data;

    for (i = 0; i < nnal; i++) {
        memcpy(dst, nal[i].payload, nal[i].sizeBytes);
        dst += nal[i].sizeBytes;

        if (is_keyframe(nal[i].type))
            pkt->flags |= AV_PKT_FLAG_KEY;
    }

    pkt->pts = x265pic_out.pts;
    pkt->dts = x265pic_out.dts;

    *got_packet = 1;
    return 0;
}

static const enum AVPixelFormat x265_csp_eight[] = {
    AV_PIX_FMT_YUV420P,
    AV_PIX_FMT_YUV422P,
    AV_PIX_FMT_YUV444P,
    AV_PIX_FMT_NONE
};

static const enum AVPixelFormat x265_csp_twelve[] = {
    AV_PIX_FMT_YUV420P,
    AV_PIX_FMT_YUV422P,
    AV_PIX_FMT_YUV444P,
    AV_PIX_FMT_YUV420P10,
    AV_PIX_FMT_YUV422P10,
    AV_PIX_FMT_YUV444P10,
    AV_PIX_FMT_NONE
};

static av_cold void libx265_encode_init_csp(AVCodec *codec)
{
    if (x265_max_bit_depth == 8)
        codec->pix_fmts = x265_csp_eight;
    else if (x265_max_bit_depth == 12)
        codec->pix_fmts = x265_csp_twelve;
}

#define OFFSET(x) offsetof(libx265Context, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
    { "preset",      "set the x265 preset",                                                         OFFSET(preset),    AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
    { "tune",        "set the x265 tune parameter",                                                 OFFSET(tune),      AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
    { "x265-params", "set the x265 configuration using a :-separated list of key=value parameters", OFFSET(x265_opts), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
    { NULL }
};

static const AVClass class = {
    .class_name = "libx265",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
};

static const AVCodecDefault x265_defaults[] = {
    { "b", "0" },
    { NULL },
};

AVCodec ff_libx265_encoder = {
    .name             = "libx265",
    .long_name        = NULL_IF_CONFIG_SMALL("libx265 H.265 / HEVC"),
    .type             = AVMEDIA_TYPE_VIDEO,
    .id               = AV_CODEC_ID_HEVC,
    .init             = libx265_encode_init,
    .init_static_data = libx265_encode_init_csp,
    .encode2          = libx265_encode_frame,
    .close            = libx265_encode_close,
    .priv_data_size   = sizeof(libx265Context),
    .priv_class       = &class,
    .defaults         = x265_defaults,
    .capabilities     = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
};
Commit	Line	Data
2ba45a60 DM	1	/*
	2	* libx265 encoder
	3	*
	4	* Copyright (c) 2013-2014 Derek Buitenhuis
	5	*
	6	* This file is part of FFmpeg.
	7	*
	8	* FFmpeg is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU Lesser General Public
	10	* License as published by the Free Software Foundation; either
	11	* version 2.1 of the License, or (at your option) any later version.
	12	*
	13	* FFmpeg is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* Lesser General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU Lesser General Public
	19	* License along with FFmpeg; if not, write to the Free Software
	20	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	21	*/
	22
	23	#if defined(_MSC_VER)
	24	#define X265_API_IMPORTS 1
	25	#endif
	26
	27	#include <x265.h>
	28
	29	#include "libavutil/internal.h"
	30	#include "libavutil/common.h"
	31	#include "libavutil/opt.h"
	32	#include "libavutil/pixdesc.h"
	33	#include "avcodec.h"
	34	#include "internal.h"
	35
	36	typedef struct libx265Context {
	37	const AVClass *class;
	38
	39	x265_encoder *encoder;
	40	x265_param *params;
	41
	42	char *preset;
	43	char *tune;
	44	char *x265_opts;
	45	} libx265Context;
	46
	47	static int is_keyframe(NalUnitType naltype)
	48	{
	49	switch (naltype) {
	50	case NAL_UNIT_CODED_SLICE_BLA_W_LP:
	51	case NAL_UNIT_CODED_SLICE_BLA_W_RADL:
	52	case NAL_UNIT_CODED_SLICE_BLA_N_LP:
	53	case NAL_UNIT_CODED_SLICE_IDR_W_RADL:
	54	case NAL_UNIT_CODED_SLICE_IDR_N_LP:
	55	case NAL_UNIT_CODED_SLICE_CRA:
	56	return 1;
	57	default:
	58	return 0;
	59	}
	60	}
	61
	62	static av_cold int libx265_encode_close(AVCodecContext *avctx)
	63	{
	64	libx265Context *ctx = avctx->priv_data;
65
66	av_frame_free(&avctx->coded_frame);
67
68	x265_param_free(ctx->params);
69
70	if (ctx->encoder)
71	x265_encoder_close(ctx->encoder);
72
73	return 0;
74	}
75
76	static av_cold int libx265_encode_init(AVCodecContext *avctx)
77	{
78	libx265Context *ctx = avctx->priv_data;
79	x265_nal *nal;
80	char sar[12];
81	int sar_num, sar_den;
82	int nnal;
83
84	if (avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL &&
85	!av_pix_fmt_desc_get(avctx->pix_fmt)->log2_chroma_w) {
86	av_log(avctx, AV_LOG_ERROR,
87	"4:2:2 and 4:4:4 support is not fully defined for HEVC yet. "
88	"Set -strict experimental to encode anyway.\n");
89	return AVERROR(ENOSYS);
90	}
91
92	avctx->coded_frame = av_frame_alloc();
93	if (!avctx->coded_frame) {
94	av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
95	return AVERROR(ENOMEM);
96	}
97
98	ctx->params = x265_param_alloc();
99	if (!ctx->params) {
100	av_log(avctx, AV_LOG_ERROR, "Could not allocate x265 param structure.\n");
101	return AVERROR(ENOMEM);
102	}
103
104	if (x265_param_default_preset(ctx->params, ctx->preset, ctx->tune) < 0) {
105	av_log(avctx, AV_LOG_ERROR, "Invalid preset or tune.\n");
106	return AVERROR(EINVAL);
107	}
108
109	ctx->params->frameNumThreads = avctx->thread_count;
110	ctx->params->fpsNum = avctx->time_base.den;
111	ctx->params->fpsDenom = avctx->time_base.num * avctx->ticks_per_frame;
112	ctx->params->sourceWidth = avctx->width;
113	ctx->params->sourceHeight = avctx->height;
114
115	if (avctx->sample_aspect_ratio.num > 0 && avctx->sample_aspect_ratio.den > 0) {
116	av_reduce(&sar_num, &sar_den,
117	avctx->sample_aspect_ratio.num,
118	avctx->sample_aspect_ratio.den, 65535);
119	snprintf(sar, sizeof(sar), "%d:%d", sar_num, sar_den);
120	if (x265_param_parse(ctx->params, "sar", sar) == X265_PARAM_BAD_VALUE) {
121	av_log(avctx, AV_LOG_ERROR, "Invalid SAR: %d:%d.\n", sar_num, sar_den);
122	return AVERROR_INVALIDDATA;
123	}
124	}
125
126	switch (avctx->pix_fmt) {
127	case AV_PIX_FMT_YUV420P:
128	case AV_PIX_FMT_YUV420P10:
129	ctx->params->internalCsp = X265_CSP_I420;
130	break;
131	case AV_PIX_FMT_YUV422P:
132	case AV_PIX_FMT_YUV422P10:
133	ctx->params->internalCsp = X265_CSP_I422;
134	break;
135	case AV_PIX_FMT_YUV444P:
136	case AV_PIX_FMT_YUV444P10:
137	ctx->params->internalCsp = X265_CSP_I444;
138	break;
139	}
140
141	if (avctx->bit_rate > 0) {
142	ctx->params->rc.bitrate = avctx->bit_rate / 1000;
143	ctx->params->rc.rateControlMode = X265_RC_ABR;
144	}
145
146	if (!(avctx->flags & CODEC_FLAG_GLOBAL_HEADER))
147	ctx->params->bRepeatHeaders = 1;
148
149	if (ctx->x265_opts) {
150	AVDictionary *dict = NULL;
151	AVDictionaryEntry *en = NULL;
152
153	if (!av_dict_parse_string(&dict, ctx->x265_opts, "=", ":", 0)) {
154	while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
155	int parse_ret = x265_param_parse(ctx->params, en->key, en->value);
156
157	switch (parse_ret) {
158	case X265_PARAM_BAD_NAME:
159	av_log(avctx, AV_LOG_WARNING,
160	"Unknown option: %s.\n", en->key);
161	break;
162	case X265_PARAM_BAD_VALUE:
163	av_log(avctx, AV_LOG_WARNING,
164	"Invalid value for %s: %s.\n", en->key, en->value);
165	break;
166	default:
167	break;
168	}
169	}
170	av_dict_free(&dict);
171	}
172	}
173
174	ctx->encoder = x265_encoder_open(ctx->params);
175	if (!ctx->encoder) {
176	av_log(avctx, AV_LOG_ERROR, "Cannot open libx265 encoder.\n");
177	libx265_encode_close(avctx);
178	return AVERROR_INVALIDDATA;
179	}
180
181	if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
182	avctx->extradata_size = x265_encoder_headers(ctx->encoder, &nal, &nnal);
183	if (avctx->extradata_size <= 0) {
184	av_log(avctx, AV_LOG_ERROR, "Cannot encode headers.\n");
185	libx265_encode_close(avctx);
186	return AVERROR_INVALIDDATA;
187	}
188
189	avctx->extradata = av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
190	if (!avctx->extradata) {
191	av_log(avctx, AV_LOG_ERROR,
192	"Cannot allocate HEVC header of size %d.\n", avctx->extradata_size);
193	libx265_encode_close(avctx);
194	return AVERROR(ENOMEM);
195	}
196
197	memcpy(avctx->extradata, nal[0].payload, avctx->extradata_size);
198	}
199
200	return 0;
201	}
202
203	static int libx265_encode_frame(AVCodecContext avctx, AVPacket pkt,
204	const AVFrame pic, int got_packet)
205	{
206	libx265Context *ctx = avctx->priv_data;
207	x265_picture x265pic;
208	x265_picture x265pic_out = { { 0 } };
209	x265_nal *nal;
210	uint8_t *dst;
211	int payload = 0;
212	int nnal;
213	int ret;
214	int i;
215
216	x265_picture_init(ctx->params, &x265pic);
217
218	if (pic) {
219	for (i = 0; i < 3; i++) {
220	x265pic.planes[i] = pic->data[i];
221	x265pic.stride[i] = pic->linesize[i];
222	}
223
224	x265pic.pts = pic->pts;
225	x265pic.bitDepth = av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth_minus1 + 1;
226	}
227
228	ret = x265_encoder_encode(ctx->encoder, &nal, &nnal,
229	pic ? &x265pic : NULL, &x265pic_out);
230	if (ret < 0)
231	return AVERROR_EXTERNAL;
232
233	if (!nnal)
234	return 0;
235
236	for (i = 0; i < nnal; i++)
237	payload += nal[i].sizeBytes;
238
239	ret = ff_alloc_packet(pkt, payload);
240	if (ret < 0) {
241	av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
242	return ret;
243	}
244	dst = pkt->data;
245
246	for (i = 0; i < nnal; i++) {
247	memcpy(dst, nal[i].payload, nal[i].sizeBytes);
248	dst += nal[i].sizeBytes;
249
250	if (is_keyframe(nal[i].type))
251	pkt->flags \|= AV_PKT_FLAG_KEY;
252	}
253
254	pkt->pts = x265pic_out.pts;
255	pkt->dts = x265pic_out.dts;
256
257	*got_packet = 1;
258	return 0;
259	}
260
261	static const enum AVPixelFormat x265_csp_eight[] = {
262	AV_PIX_FMT_YUV420P,
263	AV_PIX_FMT_YUV422P,
264	AV_PIX_FMT_YUV444P,
265	AV_PIX_FMT_NONE
266	};
267
268	static const enum AVPixelFormat x265_csp_twelve[] = {
269	AV_PIX_FMT_YUV420P,
270	AV_PIX_FMT_YUV422P,
271	AV_PIX_FMT_YUV444P,
272	AV_PIX_FMT_YUV420P10,
273	AV_PIX_FMT_YUV422P10,
274	AV_PIX_FMT_YUV444P10,
275	AV_PIX_FMT_NONE
276	};
277
278	static av_cold void libx265_encode_init_csp(AVCodec *codec)
279	{
280	if (x265_max_bit_depth == 8)
281	codec->pix_fmts = x265_csp_eight;
282	else if (x265_max_bit_depth == 12)
283	codec->pix_fmts = x265_csp_twelve;
284	}
285
286	#define OFFSET(x) offsetof(libx265Context, x)
287	#define VE AV_OPT_FLAG_VIDEO_PARAM \| AV_OPT_FLAG_ENCODING_PARAM
288	static const AVOption options[] = {
289	{ "preset", "set the x265 preset", OFFSET(preset), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
290	{ "tune", "set the x265 tune parameter", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
291	{ "x265-params", "set the x265 configuration using a :-separated list of key=value parameters", OFFSET(x265_opts), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
292	{ NULL }
293	};
294
295	static const AVClass class = {
296	.class_name = "libx265",
297	.item_name = av_default_item_name,
298	.option = options,
299	.version = LIBAVUTIL_VERSION_INT,
300	};
301
302	static const AVCodecDefault x265_defaults[] = {
303	{ "b", "0" },
304	{ NULL },
305	};
306
307	AVCodec ff_libx265_encoder = {
308	.name = "libx265",
309	.long_name = NULL_IF_CONFIG_SMALL("libx265 H.265 / HEVC"),
310	.type = AVMEDIA_TYPE_VIDEO,
311	.id = AV_CODEC_ID_HEVC,
312	.init = libx265_encode_init,
313	.init_static_data = libx265_encode_init_csp,
314	.encode2 = libx265_encode_frame,
315	.close = libx265_encode_close,
316	.priv_data_size = sizeof(libx265Context),
317	.priv_class = &class,
318	.defaults = x265_defaults,
319	.capabilities = CODEC_CAP_DELAY \| CODEC_CAP_AUTO_THREADS,
320	};