/work/aom/aom/src/aom_encoder.c

Source
/*
 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
 *
 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 */

/*!\file
 * \brief Provides the high level interface to wrap encoder algorithms.
 *
 */
#include "config/aom_config.h"

#if HAVE_FEXCEPT
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <fenv.h>
#endif

#include <limits.h>
#include <string.h>

#include "aom/aom_encoder.h"
#include "aom/internal/aom_codec_internal.h"

#define SAVE_STATUS(ctx, var) (ctx ? (ctx->err = var) : var)

static aom_codec_alg_priv_t *get_alg_priv(aom_codec_ctx_t *ctx) {
  return (aom_codec_alg_priv_t *)ctx->priv;
}

aom_codec_err_t aom_codec_enc_init_ver(aom_codec_ctx_t *ctx,
                                       aom_codec_iface_t *iface,
                                       const aom_codec_enc_cfg_t *cfg,
                                       aom_codec_flags_t flags, int ver) {
  aom_codec_err_t res;

  if (ver != AOM_ENCODER_ABI_VERSION)
    res = AOM_CODEC_ABI_MISMATCH;
  else if (!ctx || !iface || !cfg)
    res = AOM_CODEC_INVALID_PARAM;
  else if (iface->abi_version != AOM_CODEC_INTERNAL_ABI_VERSION)
    res = AOM_CODEC_ABI_MISMATCH;
  else if (!(iface->caps & AOM_CODEC_CAP_ENCODER))
    res = AOM_CODEC_INCAPABLE;
  else if ((flags & AOM_CODEC_USE_PSNR) && !(iface->caps & AOM_CODEC_CAP_PSNR))
    res = AOM_CODEC_INCAPABLE;
  else if (cfg->g_bit_depth > 8 && (flags & AOM_CODEC_USE_HIGHBITDEPTH) == 0) {
    res = AOM_CODEC_INVALID_PARAM;
    ctx->err_detail =
        "High bit-depth used without the AOM_CODEC_USE_HIGHBITDEPTH flag.";
  } else {
    ctx->iface = iface;
    ctx->name = iface->name;
    ctx->priv = NULL;
    ctx->init_flags = flags;
    ctx->config.enc = cfg;
    res = ctx->iface->init(ctx);

    if (res) {
      ctx->err_detail = ctx->priv ? ctx->priv->err_detail : NULL;
      aom_codec_destroy(ctx);
    }
  }

  return SAVE_STATUS(ctx, res);
}

aom_codec_err_t aom_codec_enc_config_default(aom_codec_iface_t *iface,
                                             aom_codec_enc_cfg_t *cfg,
                                             unsigned int usage) {
  aom_codec_err_t res;
  int i;

  if (!iface || !cfg)
    res = AOM_CODEC_INVALID_PARAM;
  else if (!(iface->caps & AOM_CODEC_CAP_ENCODER))
    res = AOM_CODEC_INCAPABLE;
  else {
    res = AOM_CODEC_INVALID_PARAM;

    for (i = 0; i < iface->enc.cfg_count; ++i) {
      if (iface->enc.cfgs[i].g_usage == usage) {
        *cfg = iface->enc.cfgs[i];
        res = AOM_CODEC_OK;
        break;
      }
    }
  }
  /* default values */
  if (cfg) {
    memset(&cfg->encoder_cfg, 0, sizeof(cfg->encoder_cfg));
    cfg->encoder_cfg.super_block_size = 0;  // Dynamic
    cfg->encoder_cfg.max_partition_size = 128;
    cfg->encoder_cfg.min_partition_size = 4;
    cfg->encoder_cfg.disable_trellis_quant = 3;
  }
  return res;
}

#if ARCH_X86 || ARCH_X86_64
/* On X86, disable the x87 unit's internal 80 bit precision for better
 * consistency with the SSE unit's 64 bit precision.
 */
#include "aom_ports/x86.h"
#define FLOATING_POINT_SET_PRECISION \
  unsigned short x87_orig_mode = x87_set_double_precision();
#define FLOATING_POINT_RESTORE_PRECISION x87_set_control_word(x87_orig_mode);
#else
#define FLOATING_POINT_SET_PRECISION
#define FLOATING_POINT_RESTORE_PRECISION
#endif  // ARCH_X86 || ARCH_X86_64

#if HAVE_FEXCEPT && CONFIG_DEBUG
#define FLOATING_POINT_SET_EXCEPTIONS \
  const int float_excepts =           \
      feenableexcept(FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW);
#define FLOATING_POINT_RESTORE_EXCEPTIONS \
  fedisableexcept(FE_ALL_EXCEPT);         \
  feenableexcept(float_excepts);
#else
#define FLOATING_POINT_SET_EXCEPTIONS
#define FLOATING_POINT_RESTORE_EXCEPTIONS
#endif  // HAVE_FEXCEPT && CONFIG_DEBUG

/* clang-format off */
#define FLOATING_POINT_INIT    \
  do {                         \
  FLOATING_POINT_SET_PRECISION \
  FLOATING_POINT_SET_EXCEPTIONS

#define FLOATING_POINT_RESTORE      \
  FLOATING_POINT_RESTORE_EXCEPTIONS \
  FLOATING_POINT_RESTORE_PRECISION  \
  } while (0);
/* clang-format on */

aom_codec_err_t aom_codec_encode(aom_codec_ctx_t *ctx, const aom_image_t *img,
                                 aom_codec_pts_t pts, unsigned long duration,
                                 aom_enc_frame_flags_t flags) {
  aom_codec_err_t res = AOM_CODEC_OK;

  if (!ctx || (img && !duration))
    res = AOM_CODEC_INVALID_PARAM;
  else if (!ctx->iface || !ctx->priv)
    res = AOM_CODEC_ERROR;
  else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
    res = AOM_CODEC_INCAPABLE;
  else {
    /* Execute in a normalized floating point environment, if the platform
     * requires it.
     */
    FLOATING_POINT_INIT
    res = ctx->iface->enc.encode(get_alg_priv(ctx), img, pts, duration, flags);
    FLOATING_POINT_RESTORE
  }

  return SAVE_STATUS(ctx, res);
}

const aom_codec_cx_pkt_t *aom_codec_get_cx_data(aom_codec_ctx_t *ctx,
                                                aom_codec_iter_t *iter) {
  const aom_codec_cx_pkt_t *pkt = NULL;

  if (ctx) {
    if (!iter)
      ctx->err = AOM_CODEC_INVALID_PARAM;
    else if (!ctx->iface || !ctx->priv)
      ctx->err = AOM_CODEC_ERROR;
    else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
      ctx->err = AOM_CODEC_INCAPABLE;
    else
      pkt = ctx->iface->enc.get_cx_data(get_alg_priv(ctx), iter);
  }

  if (pkt && pkt->kind == AOM_CODEC_CX_FRAME_PKT) {
    // If the application has specified a destination area for the
    // compressed data, and the codec has not placed the data there,
    // and it fits, copy it.
    aom_codec_priv_t *const priv = ctx->priv;
    char *const dst_buf = (char *)priv->enc.cx_data_dst_buf.buf;

    if (dst_buf && pkt->data.raw.buf != dst_buf &&
        pkt->data.raw.sz + priv->enc.cx_data_pad_before +
                priv->enc.cx_data_pad_after <=
            priv->enc.cx_data_dst_buf.sz) {
      aom_codec_cx_pkt_t *modified_pkt = &priv->enc.cx_data_pkt;

      memcpy(dst_buf + priv->enc.cx_data_pad_before, pkt->data.raw.buf,
             pkt->data.raw.sz);
      *modified_pkt = *pkt;
      modified_pkt->data.raw.buf = dst_buf;
      modified_pkt->data.raw.sz +=
          priv->enc.cx_data_pad_before + priv->enc.cx_data_pad_after;
      pkt = modified_pkt;
    }

    if (dst_buf == pkt->data.raw.buf) {
      priv->enc.cx_data_dst_buf.buf = dst_buf + pkt->data.raw.sz;
      priv->enc.cx_data_dst_buf.sz -= pkt->data.raw.sz;
    }
  }

  return pkt;
}

aom_codec_err_t aom_codec_set_cx_data_buf(aom_codec_ctx_t *ctx,
                                          const aom_fixed_buf_t *buf,
                                          unsigned int pad_before,
                                          unsigned int pad_after) {
  if (!ctx || !ctx->priv) return AOM_CODEC_INVALID_PARAM;

  if (buf) {
    ctx->priv->enc.cx_data_dst_buf = *buf;
    ctx->priv->enc.cx_data_pad_before = pad_before;
    ctx->priv->enc.cx_data_pad_after = pad_after;
  } else {
    ctx->priv->enc.cx_data_dst_buf.buf = NULL;
    ctx->priv->enc.cx_data_dst_buf.sz = 0;
    ctx->priv->enc.cx_data_pad_before = 0;
    ctx->priv->enc.cx_data_pad_after = 0;
  }

  return AOM_CODEC_OK;
}

const aom_image_t *aom_codec_get_preview_frame(aom_codec_ctx_t *ctx) {
  aom_image_t *img = NULL;

  if (ctx) {
    if (!ctx->iface || !ctx->priv)
      ctx->err = AOM_CODEC_ERROR;
    else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
      ctx->err = AOM_CODEC_INCAPABLE;
    else if (!ctx->iface->enc.get_preview)
      ctx->err = AOM_CODEC_INCAPABLE;
    else
      img = ctx->iface->enc.get_preview(get_alg_priv(ctx));
  }

  return img;
}

aom_fixed_buf_t *aom_codec_get_global_headers(aom_codec_ctx_t *ctx) {
  aom_fixed_buf_t *buf = NULL;

  if (ctx) {
    if (!ctx->iface || !ctx->priv)
      ctx->err = AOM_CODEC_ERROR;
    else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
      ctx->err = AOM_CODEC_INCAPABLE;
    else if (!ctx->iface->enc.get_glob_hdrs)
      ctx->err = AOM_CODEC_INCAPABLE;
    else
      buf = ctx->iface->enc.get_glob_hdrs(get_alg_priv(ctx));
  }

  return buf;
}

aom_codec_err_t aom_codec_enc_config_set(aom_codec_ctx_t *ctx,
                                         const aom_codec_enc_cfg_t *cfg) {
  aom_codec_err_t res;

  if (!ctx || !ctx->iface || !ctx->priv || !cfg)
    res = AOM_CODEC_INVALID_PARAM;
  else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
    res = AOM_CODEC_INCAPABLE;
  else
    res = ctx->iface->enc.cfg_set(get_alg_priv(ctx), cfg);

  return SAVE_STATUS(ctx, res);
}

int aom_codec_pkt_list_add(struct aom_codec_pkt_list *list,
                           const struct aom_codec_cx_pkt *pkt) {
  if (list->cnt < list->max) {
    list->pkts[list->cnt++] = *pkt;
    return 0;
  }

  return 1;
}

const aom_codec_cx_pkt_t *aom_codec_pkt_list_get(
    struct aom_codec_pkt_list *list, aom_codec_iter_t *iter) {
  const aom_codec_cx_pkt_t *pkt;

  if (!(*iter)) {
    *iter = list->pkts;
  }

  pkt = (const aom_codec_cx_pkt_t *)*iter;

  if ((size_t)(pkt - list->pkts) < list->cnt)
    *iter = pkt + 1;
  else
    pkt = NULL;

  return pkt;
}

Coverage Report

Created: 2026-06-10 07:00

Line	Count	Source
1		/*
2		* Copyright (c) 2016, Alliance for Open Media. All rights reserved
3		*
4		* This source code is subject to the terms of the BSD 2 Clause License and
5		* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6		* was not distributed with this source code in the LICENSE file, you can
7		* obtain it at www.aomedia.org/license/software. If the Alliance for Open
8		* Media Patent License 1.0 was not distributed with this source code in the
9		* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10		*/
11
12		/*!\file
13		* \brief Provides the high level interface to wrap encoder algorithms.
14		*
15		*/
16		#include "config/aom_config.h"
17
18		#if HAVE_FEXCEPT
19		#ifndef _GNU_SOURCE
20		#define _GNU_SOURCE
21		#endif
22		#include <fenv.h>
23		#endif
24
25		#include <limits.h>
26		#include <string.h>
27
28		#include "aom/aom_encoder.h"
29		#include "aom/internal/aom_codec_internal.h"
30
31	2.46k	#define SAVE_STATUS(ctx, var) (ctx ? (ctx->err = var) : var)
32
33	4.11k	static aom_codec_alg_priv_t get_alg_priv(aom_codec_ctx_t ctx) {
34	4.11k	return (aom_codec_alg_priv_t *)ctx->priv;
35	4.11k	}
36
37		aom_codec_err_t aom_codec_enc_init_ver(aom_codec_ctx_t *ctx,
38		aom_codec_iface_t *iface,
39		const aom_codec_enc_cfg_t *cfg,
40	822	aom_codec_flags_t flags, int ver) {
41	822	aom_codec_err_t res;
42
43	822	if (ver != AOM_ENCODER_ABI_VERSION)
44	0	res = AOM_CODEC_ABI_MISMATCH;
45	822	else if (!ctx \|\| !iface \|\| !cfg)
46	0	res = AOM_CODEC_INVALID_PARAM;
47	822	else if (iface->abi_version != AOM_CODEC_INTERNAL_ABI_VERSION)
48	0	res = AOM_CODEC_ABI_MISMATCH;
49	822	else if (!(iface->caps & AOM_CODEC_CAP_ENCODER))
50	0	res = AOM_CODEC_INCAPABLE;
51	822	else if ((flags & AOM_CODEC_USE_PSNR) && !(iface->caps & AOM_CODEC_CAP_PSNR))
52	0	res = AOM_CODEC_INCAPABLE;
53	822	else if (cfg->g_bit_depth > 8 && (flags & AOM_CODEC_USE_HIGHBITDEPTH) == 0) {
54	0	res = AOM_CODEC_INVALID_PARAM;
55	0	ctx->err_detail =
56	0	"High bit-depth used without the AOM_CODEC_USE_HIGHBITDEPTH flag.";
57	822	} else {
58	822	ctx->iface = iface;
59	822	ctx->name = iface->name;
60	822	ctx->priv = NULL;
61	822	ctx->init_flags = flags;
62	822	ctx->config.enc = cfg;
63	822	res = ctx->iface->init(ctx);
64
65	822	if (res) {
66	0	ctx->err_detail = ctx->priv ? ctx->priv->err_detail : NULL;
67	0	aom_codec_destroy(ctx);
68	0	}
69	822	}
70
71	822	return SAVE_STATUS(ctx, res);
72	822	}
73
74		aom_codec_err_t aom_codec_enc_config_default(aom_codec_iface_t *iface,
75		aom_codec_enc_cfg_t *cfg,
76	822	unsigned int usage) {
77	822	aom_codec_err_t res;
78	822	int i;
79
80	822	if (!iface \|\| !cfg)
81	0	res = AOM_CODEC_INVALID_PARAM;
82	822	else if (!(iface->caps & AOM_CODEC_CAP_ENCODER))
83	0	res = AOM_CODEC_INCAPABLE;
84	822	else {
85	822	res = AOM_CODEC_INVALID_PARAM;
86
87	2.46k	for (i = 0; i < iface->enc.cfg_count; ++i) {
88	2.46k	if (iface->enc.cfgs[i].g_usage == usage) {
89	822	*cfg = iface->enc.cfgs[i];
90	822	res = AOM_CODEC_OK;
91	822	break;
92	822	}
93	2.46k	}
94	822	}
95		/* default values */
96	822	if (cfg) {
97	822	memset(&cfg->encoder_cfg, 0, sizeof(cfg->encoder_cfg));
98	822	cfg->encoder_cfg.super_block_size = 0; // Dynamic
99	822	cfg->encoder_cfg.max_partition_size = 128;
100	822	cfg->encoder_cfg.min_partition_size = 4;
101	822	cfg->encoder_cfg.disable_trellis_quant = 3;
102	822	}
103	822	return res;
104	822	}
105
106		#if ARCH_X86 \|\| ARCH_X86_64
107		/* On X86, disable the x87 unit's internal 80 bit precision for better
108		* consistency with the SSE unit's 64 bit precision.
109		*/
110		#include "aom_ports/x86.h"
111		#define FLOATING_POINT_SET_PRECISION \
112		unsigned short x87_orig_mode = x87_set_double_precision();
113		#define FLOATING_POINT_RESTORE_PRECISION x87_set_control_word(x87_orig_mode);
114		#else
115		#define FLOATING_POINT_SET_PRECISION
116		#define FLOATING_POINT_RESTORE_PRECISION
117		#endif // ARCH_X86 \|\| ARCH_X86_64
118
119		#if HAVE_FEXCEPT && CONFIG_DEBUG
120		#define FLOATING_POINT_SET_EXCEPTIONS \
121		const int float_excepts = \
122		feenableexcept(FE_DIVBYZERO \| FE_UNDERFLOW \| FE_OVERFLOW);
123		#define FLOATING_POINT_RESTORE_EXCEPTIONS \
124		fedisableexcept(FE_ALL_EXCEPT); \
125		feenableexcept(float_excepts);
126		#else
127		#define FLOATING_POINT_SET_EXCEPTIONS
128		#define FLOATING_POINT_RESTORE_EXCEPTIONS
129		#endif // HAVE_FEXCEPT && CONFIG_DEBUG
130
131		/* clang-format off */
132		#define FLOATING_POINT_INIT \
133	1.64k	do { \
134	1.64k	FLOATING_POINT_SET_PRECISION \
135	1.64k	FLOATING_POINT_SET_EXCEPTIONS
136
137		#define FLOATING_POINT_RESTORE \
138	1.64k	FLOATING_POINT_RESTORE_EXCEPTIONS \
139	1.64k	FLOATING_POINT_RESTORE_PRECISION \
140	1.64k	} while (0);
141		/* clang-format on */
142
143		aom_codec_err_t aom_codec_encode(aom_codec_ctx_t ctx, const aom_image_t img,
144		aom_codec_pts_t pts, unsigned long duration,
145	1.64k	aom_enc_frame_flags_t flags) {
146	1.64k	aom_codec_err_t res = AOM_CODEC_OK;
147
148	1.64k	if (!ctx \|\| (img && !duration))
149	0	res = AOM_CODEC_INVALID_PARAM;
150	1.64k	else if (!ctx->iface \|\| !ctx->priv)
151	0	res = AOM_CODEC_ERROR;
152	1.64k	else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
153	0	res = AOM_CODEC_INCAPABLE;
154	1.64k	else {
155		/* Execute in a normalized floating point environment, if the platform
156		* requires it.
157		*/
158	1.64k	FLOATING_POINT_INIT
159	1.64k	res = ctx->iface->enc.encode(get_alg_priv(ctx), img, pts, duration, flags);
160	1.64k	FLOATING_POINT_RESTORE
161	1.64k	}
162
163	1.64k	return SAVE_STATUS(ctx, res);
164	1.64k	}
165
166		const aom_codec_cx_pkt_t aom_codec_get_cx_data(aom_codec_ctx_t ctx,
167	2.46k	aom_codec_iter_t *iter) {
168	2.46k	const aom_codec_cx_pkt_t *pkt = NULL;
169
170	2.46k	if (ctx) {
171	2.46k	if (!iter)
172	0	ctx->err = AOM_CODEC_INVALID_PARAM;
173	2.46k	else if (!ctx->iface \|\| !ctx->priv)
174	0	ctx->err = AOM_CODEC_ERROR;
175	2.46k	else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
176	0	ctx->err = AOM_CODEC_INCAPABLE;
177	2.46k	else
178	2.46k	pkt = ctx->iface->enc.get_cx_data(get_alg_priv(ctx), iter);
179	2.46k	}
180
181	2.46k	if (pkt && pkt->kind == AOM_CODEC_CX_FRAME_PKT) {
182		// If the application has specified a destination area for the
183		// compressed data, and the codec has not placed the data there,
184		// and it fits, copy it.
185	822	aom_codec_priv_t *const priv = ctx->priv;
186	822	char const dst_buf = (char )priv->enc.cx_data_dst_buf.buf;
187
188	822	if (dst_buf && pkt->data.raw.buf != dst_buf &&
189	0	pkt->data.raw.sz + priv->enc.cx_data_pad_before +
190	0	priv->enc.cx_data_pad_after <=
191	0	priv->enc.cx_data_dst_buf.sz) {
192	0	aom_codec_cx_pkt_t *modified_pkt = &priv->enc.cx_data_pkt;
193
194	0	memcpy(dst_buf + priv->enc.cx_data_pad_before, pkt->data.raw.buf,
195	0	pkt->data.raw.sz);
196	0	modified_pkt = pkt;
197	0	modified_pkt->data.raw.buf = dst_buf;
198	0	modified_pkt->data.raw.sz +=
199	0	priv->enc.cx_data_pad_before + priv->enc.cx_data_pad_after;
200	0	pkt = modified_pkt;
201	0	}
202
203	822	if (dst_buf == pkt->data.raw.buf) {
204	0	priv->enc.cx_data_dst_buf.buf = dst_buf + pkt->data.raw.sz;
205	0	priv->enc.cx_data_dst_buf.sz -= pkt->data.raw.sz;
206	0	}
207	822	}
208
209	2.46k	return pkt;
210	2.46k	}
211
212		aom_codec_err_t aom_codec_set_cx_data_buf(aom_codec_ctx_t *ctx,
213		const aom_fixed_buf_t *buf,
214		unsigned int pad_before,
215	0	unsigned int pad_after) {
216	0	if (!ctx \|\| !ctx->priv) return AOM_CODEC_INVALID_PARAM;
217
218	0	if (buf) {
219	0	ctx->priv->enc.cx_data_dst_buf = *buf;
220	0	ctx->priv->enc.cx_data_pad_before = pad_before;
221	0	ctx->priv->enc.cx_data_pad_after = pad_after;
222	0	} else {
223	0	ctx->priv->enc.cx_data_dst_buf.buf = NULL;
224	0	ctx->priv->enc.cx_data_dst_buf.sz = 0;
225	0	ctx->priv->enc.cx_data_pad_before = 0;
226	0	ctx->priv->enc.cx_data_pad_after = 0;
227	0	}
228
229	0	return AOM_CODEC_OK;
230	0	}
231
232	0	const aom_image_t aom_codec_get_preview_frame(aom_codec_ctx_t ctx) {
233	0	aom_image_t *img = NULL;
234
235	0	if (ctx) {
236	0	if (!ctx->iface \|\| !ctx->priv)
237	0	ctx->err = AOM_CODEC_ERROR;
238	0	else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
239	0	ctx->err = AOM_CODEC_INCAPABLE;
240	0	else if (!ctx->iface->enc.get_preview)
241	0	ctx->err = AOM_CODEC_INCAPABLE;
242	0	else
243	0	img = ctx->iface->enc.get_preview(get_alg_priv(ctx));
244	0	}
245
246	0	return img;
247	0	}
248
249	0	aom_fixed_buf_t aom_codec_get_global_headers(aom_codec_ctx_t ctx) {
250	0	aom_fixed_buf_t *buf = NULL;
251
252	0	if (ctx) {
253	0	if (!ctx->iface \|\| !ctx->priv)
254	0	ctx->err = AOM_CODEC_ERROR;
255	0	else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
256	0	ctx->err = AOM_CODEC_INCAPABLE;
257	0	else if (!ctx->iface->enc.get_glob_hdrs)
258	0	ctx->err = AOM_CODEC_INCAPABLE;
259	0	else
260	0	buf = ctx->iface->enc.get_glob_hdrs(get_alg_priv(ctx));
261	0	}
262
263	0	return buf;
264	0	}
265
266		aom_codec_err_t aom_codec_enc_config_set(aom_codec_ctx_t *ctx,
267	0	const aom_codec_enc_cfg_t *cfg) {
268	0	aom_codec_err_t res;
269
270	0	if (!ctx \|\| !ctx->iface \|\| !ctx->priv \|\| !cfg)
271	0	res = AOM_CODEC_INVALID_PARAM;
272	0	else if (!(ctx->iface->caps & AOM_CODEC_CAP_ENCODER))
273	0	res = AOM_CODEC_INCAPABLE;
274	0	else
275	0	res = ctx->iface->enc.cfg_set(get_alg_priv(ctx), cfg);
276
277	0	return SAVE_STATUS(ctx, res);
278	0	}
279
280		int aom_codec_pkt_list_add(struct aom_codec_pkt_list *list,
281	822	const struct aom_codec_cx_pkt *pkt) {
282	822	if (list->cnt < list->max) {
283	822	list->pkts[list->cnt++] = *pkt;
284	822	return 0;
285	822	}
286
287	0	return 1;
288	822	}
289
290		const aom_codec_cx_pkt_t *aom_codec_pkt_list_get(
291	2.46k	struct aom_codec_pkt_list list, aom_codec_iter_t iter) {
292	2.46k	const aom_codec_cx_pkt_t *pkt;
293
294	2.46k	if (!(*iter)) {
295	1.64k	*iter = list->pkts;
296	1.64k	}
297
298	2.46k	pkt = (const aom_codec_cx_pkt_t )iter;
299
300	2.46k	if ((size_t)(pkt - list->pkts) < list->cnt)
301	822	*iter = pkt + 1;
302	1.64k	else
303	1.64k	pkt = NULL;
304
305	2.46k	return pkt;
306	2.46k	}