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/* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
10 |
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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 GNU |
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* Lesser General Public License for more details. |
13 |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
18 |
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19 |
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#include <string.h> |
20 |
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21 |
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#include "libavutil/avassert.h" |
22 |
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#include "libavutil/log.h" |
23 |
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#include "libavutil/mem.h" |
24 |
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#include "libavutil/opt.h" |
25 |
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#include "libavutil/avstring.h" |
26 |
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#include "libavutil/bprint.h" |
27 |
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28 |
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#include "bsf.h" |
29 |
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#include "bsf_internal.h" |
30 |
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#include "codec_desc.h" |
31 |
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#include "codec_par.h" |
32 |
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33 |
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#define IS_EMPTY(pkt) (!(pkt)->data && !(pkt)->side_data_elems) |
34 |
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35 |
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struct AVBSFInternal { |
36 |
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AVPacket *buffer_pkt; |
37 |
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int eof; |
38 |
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}; |
39 |
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40 |
|
57531 |
void av_bsf_free(AVBSFContext **pctx) |
41 |
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{ |
42 |
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AVBSFContext *ctx; |
43 |
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|
44 |
✓✗✓✓
|
57531 |
if (!pctx || !*pctx) |
45 |
|
44065 |
return; |
46 |
|
13466 |
ctx = *pctx; |
47 |
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|
48 |
✓✓ |
13466 |
if (ctx->filter->close) |
49 |
|
13448 |
ctx->filter->close(ctx); |
50 |
✓✓✓✗
|
13466 |
if (ctx->filter->priv_class && ctx->priv_data) |
51 |
|
12970 |
av_opt_free(ctx->priv_data); |
52 |
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|
53 |
✓✗ |
13466 |
if (ctx->internal) |
54 |
|
13466 |
av_packet_free(&ctx->internal->buffer_pkt); |
55 |
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13466 |
av_freep(&ctx->internal); |
56 |
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13466 |
av_freep(&ctx->priv_data); |
57 |
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58 |
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13466 |
avcodec_parameters_free(&ctx->par_in); |
59 |
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13466 |
avcodec_parameters_free(&ctx->par_out); |
60 |
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61 |
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13466 |
av_freep(pctx); |
62 |
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} |
63 |
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64 |
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static void *bsf_child_next(void *obj, void *prev) |
65 |
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{ |
66 |
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AVBSFContext *ctx = obj; |
67 |
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if (!prev && ctx->filter->priv_class) |
68 |
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return ctx->priv_data; |
69 |
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return NULL; |
70 |
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} |
71 |
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72 |
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static const char *bsf_to_name(void *bsf) |
73 |
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{ |
74 |
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return ((AVBSFContext *)bsf)->filter->name; |
75 |
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} |
76 |
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77 |
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static const AVClass bsf_class = { |
78 |
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.class_name = "AVBSFContext", |
79 |
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.item_name = bsf_to_name, |
80 |
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.version = LIBAVUTIL_VERSION_INT, |
81 |
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.child_next = bsf_child_next, |
82 |
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#if FF_API_CHILD_CLASS_NEXT |
83 |
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.child_class_next = ff_bsf_child_class_next, |
84 |
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#endif |
85 |
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.child_class_iterate = ff_bsf_child_class_iterate, |
86 |
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.category = AV_CLASS_CATEGORY_BITSTREAM_FILTER, |
87 |
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}; |
88 |
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89 |
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const AVClass *av_bsf_get_class(void) |
90 |
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{ |
91 |
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return &bsf_class; |
92 |
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} |
93 |
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94 |
|
13466 |
int av_bsf_alloc(const AVBitStreamFilter *filter, AVBSFContext **pctx) |
95 |
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{ |
96 |
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AVBSFContext *ctx; |
97 |
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AVBSFInternal *bsfi; |
98 |
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int ret; |
99 |
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|
100 |
|
13466 |
ctx = av_mallocz(sizeof(*ctx)); |
101 |
✗✓ |
13466 |
if (!ctx) |
102 |
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return AVERROR(ENOMEM); |
103 |
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|
104 |
|
13466 |
ctx->av_class = &bsf_class; |
105 |
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13466 |
ctx->filter = filter; |
106 |
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107 |
|
13466 |
ctx->par_in = avcodec_parameters_alloc(); |
108 |
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13466 |
ctx->par_out = avcodec_parameters_alloc(); |
109 |
✓✗✗✓
|
13466 |
if (!ctx->par_in || !ctx->par_out) { |
110 |
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ret = AVERROR(ENOMEM); |
111 |
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goto fail; |
112 |
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} |
113 |
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114 |
|
13466 |
bsfi = av_mallocz(sizeof(*bsfi)); |
115 |
✗✓ |
13466 |
if (!bsfi) { |
116 |
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ret = AVERROR(ENOMEM); |
117 |
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goto fail; |
118 |
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} |
119 |
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13466 |
ctx->internal = bsfi; |
120 |
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121 |
|
13466 |
bsfi->buffer_pkt = av_packet_alloc(); |
122 |
✗✓ |
13466 |
if (!bsfi->buffer_pkt) { |
123 |
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ret = AVERROR(ENOMEM); |
124 |
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goto fail; |
125 |
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} |
126 |
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127 |
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/* allocate priv data and init private options */ |
128 |
✓✓ |
13466 |
if (filter->priv_data_size) { |
129 |
|
13464 |
ctx->priv_data = av_mallocz(filter->priv_data_size); |
130 |
✗✓ |
13464 |
if (!ctx->priv_data) { |
131 |
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ret = AVERROR(ENOMEM); |
132 |
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goto fail; |
133 |
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} |
134 |
✓✓ |
13464 |
if (filter->priv_class) { |
135 |
|
12970 |
*(const AVClass **)ctx->priv_data = filter->priv_class; |
136 |
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12970 |
av_opt_set_defaults(ctx->priv_data); |
137 |
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} |
138 |
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} |
139 |
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|
140 |
|
13466 |
*pctx = ctx; |
141 |
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13466 |
return 0; |
142 |
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fail: |
143 |
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av_bsf_free(&ctx); |
144 |
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return ret; |
145 |
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} |
146 |
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|
147 |
|
13466 |
int av_bsf_init(AVBSFContext *ctx) |
148 |
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{ |
149 |
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int ret, i; |
150 |
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|
151 |
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/* check that the codec is supported */ |
152 |
✓✓ |
13466 |
if (ctx->filter->codec_ids) { |
153 |
✓✗ |
4211 |
for (i = 0; ctx->filter->codec_ids[i] != AV_CODEC_ID_NONE; i++) |
154 |
✓✓ |
4211 |
if (ctx->par_in->codec_id == ctx->filter->codec_ids[i]) |
155 |
|
1260 |
break; |
156 |
✗✓ |
1260 |
if (ctx->filter->codec_ids[i] == AV_CODEC_ID_NONE) { |
157 |
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const AVCodecDescriptor *desc = avcodec_descriptor_get(ctx->par_in->codec_id); |
158 |
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av_log(ctx, AV_LOG_ERROR, "Codec '%s' (%d) is not supported by the " |
159 |
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"bitstream filter '%s'. Supported codecs are: ", |
160 |
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desc ? desc->name : "unknown", ctx->par_in->codec_id, ctx->filter->name); |
161 |
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for (i = 0; ctx->filter->codec_ids[i] != AV_CODEC_ID_NONE; i++) { |
162 |
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desc = avcodec_descriptor_get(ctx->filter->codec_ids[i]); |
163 |
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av_log(ctx, AV_LOG_ERROR, "%s (%d) ", |
164 |
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desc ? desc->name : "unknown", ctx->filter->codec_ids[i]); |
165 |
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} |
166 |
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av_log(ctx, AV_LOG_ERROR, "\n"); |
167 |
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return AVERROR(EINVAL); |
168 |
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|
} |
169 |
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} |
170 |
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|
171 |
|
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/* initialize output parameters to be the same as input |
172 |
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* init below might overwrite that */ |
173 |
|
13466 |
ret = avcodec_parameters_copy(ctx->par_out, ctx->par_in); |
174 |
✗✓ |
13466 |
if (ret < 0) |
175 |
|
|
return ret; |
176 |
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|
177 |
|
13466 |
ctx->time_base_out = ctx->time_base_in; |
178 |
|
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|
179 |
✓✓ |
13466 |
if (ctx->filter->init) { |
180 |
|
13457 |
ret = ctx->filter->init(ctx); |
181 |
✗✓ |
13457 |
if (ret < 0) |
182 |
|
|
return ret; |
183 |
|
|
} |
184 |
|
|
|
185 |
|
13466 |
return 0; |
186 |
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|
} |
187 |
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|
188 |
|
28 |
void av_bsf_flush(AVBSFContext *ctx) |
189 |
|
|
{ |
190 |
|
28 |
AVBSFInternal *bsfi = ctx->internal; |
191 |
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|
192 |
|
28 |
bsfi->eof = 0; |
193 |
|
|
|
194 |
|
28 |
av_packet_unref(bsfi->buffer_pkt); |
195 |
|
|
|
196 |
✓✗ |
28 |
if (ctx->filter->flush) |
197 |
|
28 |
ctx->filter->flush(ctx); |
198 |
|
28 |
} |
199 |
|
|
|
200 |
|
388799 |
int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt) |
201 |
|
|
{ |
202 |
|
388799 |
AVBSFInternal *bsfi = ctx->internal; |
203 |
|
|
int ret; |
204 |
|
|
|
205 |
✓✓✓✓ ✓✗ |
388799 |
if (!pkt || IS_EMPTY(pkt)) { |
206 |
|
5913 |
bsfi->eof = 1; |
207 |
|
5913 |
return 0; |
208 |
|
|
} |
209 |
|
|
|
210 |
✗✓ |
382886 |
if (bsfi->eof) { |
211 |
|
|
av_log(ctx, AV_LOG_ERROR, "A non-NULL packet sent after an EOF.\n"); |
212 |
|
|
return AVERROR(EINVAL); |
213 |
|
|
} |
214 |
|
|
|
215 |
✓✗✗✓
|
382886 |
if (!IS_EMPTY(bsfi->buffer_pkt)) |
216 |
|
|
return AVERROR(EAGAIN); |
217 |
|
|
|
218 |
|
382886 |
ret = av_packet_make_refcounted(pkt); |
219 |
✗✓ |
382886 |
if (ret < 0) |
220 |
|
|
return ret; |
221 |
|
382886 |
av_packet_move_ref(bsfi->buffer_pkt, pkt); |
222 |
|
|
|
223 |
|
382886 |
return 0; |
224 |
|
|
} |
225 |
|
|
|
226 |
|
770795 |
int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt) |
227 |
|
|
{ |
228 |
|
770795 |
return ctx->filter->filter(ctx, pkt); |
229 |
|
|
} |
230 |
|
|
|
231 |
|
895 |
int ff_bsf_get_packet(AVBSFContext *ctx, AVPacket **pkt) |
232 |
|
|
{ |
233 |
|
895 |
AVBSFInternal *bsfi = ctx->internal; |
234 |
|
|
AVPacket *tmp_pkt; |
235 |
|
|
|
236 |
✓✓ |
895 |
if (bsfi->eof) |
237 |
|
4 |
return AVERROR_EOF; |
238 |
|
|
|
239 |
✓✓✓✗
|
891 |
if (IS_EMPTY(bsfi->buffer_pkt)) |
240 |
|
445 |
return AVERROR(EAGAIN); |
241 |
|
|
|
242 |
|
446 |
tmp_pkt = av_packet_alloc(); |
243 |
✗✓ |
446 |
if (!tmp_pkt) |
244 |
|
|
return AVERROR(ENOMEM); |
245 |
|
|
|
246 |
|
446 |
*pkt = bsfi->buffer_pkt; |
247 |
|
446 |
bsfi->buffer_pkt = tmp_pkt; |
248 |
|
|
|
249 |
|
446 |
return 0; |
250 |
|
|
} |
251 |
|
|
|
252 |
|
770122 |
int ff_bsf_get_packet_ref(AVBSFContext *ctx, AVPacket *pkt) |
253 |
|
|
{ |
254 |
|
770122 |
AVBSFInternal *bsfi = ctx->internal; |
255 |
|
|
|
256 |
✓✓ |
770122 |
if (bsfi->eof) |
257 |
|
5914 |
return AVERROR_EOF; |
258 |
|
|
|
259 |
✓✓✓✗
|
764208 |
if (IS_EMPTY(bsfi->buffer_pkt)) |
260 |
|
381768 |
return AVERROR(EAGAIN); |
261 |
|
|
|
262 |
|
382440 |
av_packet_move_ref(pkt, bsfi->buffer_pkt); |
263 |
|
|
|
264 |
|
382440 |
return 0; |
265 |
|
|
} |
266 |
|
|
|
267 |
|
|
typedef struct BSFListContext { |
268 |
|
|
const AVClass *class; |
269 |
|
|
|
270 |
|
|
AVBSFContext **bsfs; |
271 |
|
|
int nb_bsfs; |
272 |
|
|
|
273 |
|
|
unsigned idx; // index of currently processed BSF |
274 |
|
|
|
275 |
|
|
char * item_name; |
276 |
|
|
} BSFListContext; |
277 |
|
|
|
278 |
|
|
|
279 |
|
12203 |
static int bsf_list_init(AVBSFContext *bsf) |
280 |
|
|
{ |
281 |
|
12203 |
BSFListContext *lst = bsf->priv_data; |
282 |
|
|
int ret, i; |
283 |
|
12203 |
const AVCodecParameters *cod_par = bsf->par_in; |
284 |
|
12203 |
AVRational tb = bsf->time_base_in; |
285 |
|
|
|
286 |
✗✓ |
12203 |
for (i = 0; i < lst->nb_bsfs; ++i) { |
287 |
|
|
ret = avcodec_parameters_copy(lst->bsfs[i]->par_in, cod_par); |
288 |
|
|
if (ret < 0) |
289 |
|
|
goto fail; |
290 |
|
|
|
291 |
|
|
lst->bsfs[i]->time_base_in = tb; |
292 |
|
|
|
293 |
|
|
ret = av_bsf_init(lst->bsfs[i]); |
294 |
|
|
if (ret < 0) |
295 |
|
|
goto fail; |
296 |
|
|
|
297 |
|
|
cod_par = lst->bsfs[i]->par_out; |
298 |
|
|
tb = lst->bsfs[i]->time_base_out; |
299 |
|
|
} |
300 |
|
|
|
301 |
|
12203 |
bsf->time_base_out = tb; |
302 |
|
12203 |
ret = avcodec_parameters_copy(bsf->par_out, cod_par); |
303 |
|
|
|
304 |
|
12203 |
fail: |
305 |
|
12203 |
return ret; |
306 |
|
|
} |
307 |
|
|
|
308 |
|
749517 |
static int bsf_list_filter(AVBSFContext *bsf, AVPacket *out) |
309 |
|
|
{ |
310 |
|
749517 |
BSFListContext *lst = bsf->priv_data; |
311 |
|
749517 |
int ret, eof = 0; |
312 |
|
|
|
313 |
✓✗ |
749517 |
if (!lst->nb_bsfs) |
314 |
|
749517 |
return ff_bsf_get_packet_ref(bsf, out); |
315 |
|
|
|
316 |
|
|
while (1) { |
317 |
|
|
/* get a packet from the previous filter up the chain */ |
318 |
|
|
if (lst->idx) |
319 |
|
|
ret = av_bsf_receive_packet(lst->bsfs[lst->idx-1], out); |
320 |
|
|
else |
321 |
|
|
ret = ff_bsf_get_packet_ref(bsf, out); |
322 |
|
|
if (ret == AVERROR(EAGAIN)) { |
323 |
|
|
if (!lst->idx) |
324 |
|
|
return ret; |
325 |
|
|
lst->idx--; |
326 |
|
|
continue; |
327 |
|
|
} else if (ret == AVERROR_EOF) { |
328 |
|
|
eof = 1; |
329 |
|
|
} else if (ret < 0) |
330 |
|
|
return ret; |
331 |
|
|
|
332 |
|
|
/* send it to the next filter down the chain */ |
333 |
|
|
if (lst->idx < lst->nb_bsfs) { |
334 |
|
|
ret = av_bsf_send_packet(lst->bsfs[lst->idx], eof ? NULL : out); |
335 |
|
|
av_assert1(ret != AVERROR(EAGAIN)); |
336 |
|
|
if (ret < 0) { |
337 |
|
|
av_packet_unref(out); |
338 |
|
|
return ret; |
339 |
|
|
} |
340 |
|
|
lst->idx++; |
341 |
|
|
eof = 0; |
342 |
|
|
} else if (eof) { |
343 |
|
|
return ret; |
344 |
|
|
} else { |
345 |
|
|
return 0; |
346 |
|
|
} |
347 |
|
|
} |
348 |
|
|
} |
349 |
|
|
|
350 |
|
28 |
static void bsf_list_flush(AVBSFContext *bsf) |
351 |
|
|
{ |
352 |
|
28 |
BSFListContext *lst = bsf->priv_data; |
353 |
|
|
|
354 |
✗✓ |
28 |
for (int i = 0; i < lst->nb_bsfs; i++) |
355 |
|
|
av_bsf_flush(lst->bsfs[i]); |
356 |
|
28 |
lst->idx = 0; |
357 |
|
28 |
} |
358 |
|
|
|
359 |
|
12203 |
static void bsf_list_close(AVBSFContext *bsf) |
360 |
|
|
{ |
361 |
|
12203 |
BSFListContext *lst = bsf->priv_data; |
362 |
|
|
int i; |
363 |
|
|
|
364 |
✗✓ |
12203 |
for (i = 0; i < lst->nb_bsfs; ++i) |
365 |
|
|
av_bsf_free(&lst->bsfs[i]); |
366 |
|
12203 |
av_freep(&lst->bsfs); |
367 |
|
12203 |
av_freep(&lst->item_name); |
368 |
|
12203 |
} |
369 |
|
|
|
370 |
|
|
static const char *bsf_list_item_name(void *ctx) |
371 |
|
|
{ |
372 |
|
|
static const char *null_filter_name = "null"; |
373 |
|
|
AVBSFContext *bsf_ctx = ctx; |
374 |
|
|
BSFListContext *lst = bsf_ctx->priv_data; |
375 |
|
|
|
376 |
|
|
if (!lst->nb_bsfs) |
377 |
|
|
return null_filter_name; |
378 |
|
|
|
379 |
|
|
if (!lst->item_name) { |
380 |
|
|
int i; |
381 |
|
|
AVBPrint bp; |
382 |
|
|
av_bprint_init(&bp, 16, 128); |
383 |
|
|
|
384 |
|
|
av_bprintf(&bp, "bsf_list("); |
385 |
|
|
for (i = 0; i < lst->nb_bsfs; i++) |
386 |
|
|
av_bprintf(&bp, i ? ",%s" : "%s", lst->bsfs[i]->filter->name); |
387 |
|
|
av_bprintf(&bp, ")"); |
388 |
|
|
|
389 |
|
|
av_bprint_finalize(&bp, &lst->item_name); |
390 |
|
|
} |
391 |
|
|
|
392 |
|
|
return lst->item_name; |
393 |
|
|
} |
394 |
|
|
|
395 |
|
|
static const AVClass bsf_list_class = { |
396 |
|
|
.class_name = "bsf_list", |
397 |
|
|
.item_name = bsf_list_item_name, |
398 |
|
|
.version = LIBAVUTIL_VERSION_INT, |
399 |
|
|
}; |
400 |
|
|
|
401 |
|
|
const AVBitStreamFilter ff_list_bsf = { |
402 |
|
|
.name = "bsf_list", |
403 |
|
|
.priv_data_size = sizeof(BSFListContext), |
404 |
|
|
.priv_class = &bsf_list_class, |
405 |
|
|
.init = bsf_list_init, |
406 |
|
|
.filter = bsf_list_filter, |
407 |
|
|
.flush = bsf_list_flush, |
408 |
|
|
.close = bsf_list_close, |
409 |
|
|
}; |
410 |
|
|
|
411 |
|
|
struct AVBSFList { |
412 |
|
|
AVBSFContext **bsfs; |
413 |
|
|
int nb_bsfs; |
414 |
|
|
}; |
415 |
|
|
|
416 |
|
553 |
AVBSFList *av_bsf_list_alloc(void) |
417 |
|
|
{ |
418 |
|
553 |
return av_mallocz(sizeof(AVBSFList)); |
419 |
|
|
} |
420 |
|
|
|
421 |
|
|
void av_bsf_list_free(AVBSFList **lst) |
422 |
|
|
{ |
423 |
|
|
int i; |
424 |
|
|
|
425 |
|
|
if (!*lst) |
426 |
|
|
return; |
427 |
|
|
|
428 |
|
|
for (i = 0; i < (*lst)->nb_bsfs; ++i) |
429 |
|
|
av_bsf_free(&(*lst)->bsfs[i]); |
430 |
|
|
av_free((*lst)->bsfs); |
431 |
|
|
av_freep(lst); |
432 |
|
|
} |
433 |
|
|
|
434 |
|
553 |
int av_bsf_list_append(AVBSFList *lst, AVBSFContext *bsf) |
435 |
|
|
{ |
436 |
|
553 |
return av_dynarray_add_nofree(&lst->bsfs, &lst->nb_bsfs, bsf); |
437 |
|
|
} |
438 |
|
|
|
439 |
|
553 |
static int bsf_list_append_internal(AVBSFList *lst, const char *bsf_name, const char *options, AVDictionary ** options_dict) |
440 |
|
|
{ |
441 |
|
|
int ret; |
442 |
|
|
const AVBitStreamFilter *filter; |
443 |
|
|
AVBSFContext *bsf; |
444 |
|
|
|
445 |
|
553 |
filter = av_bsf_get_by_name(bsf_name); |
446 |
✗✓ |
553 |
if (!filter) |
447 |
|
|
return AVERROR_BSF_NOT_FOUND; |
448 |
|
|
|
449 |
|
553 |
ret = av_bsf_alloc(filter, &bsf); |
450 |
✗✓ |
553 |
if (ret < 0) |
451 |
|
|
return ret; |
452 |
|
|
|
453 |
✓✓✓✗
|
553 |
if (options && filter->priv_class) { |
454 |
|
10 |
const AVOption *opt = av_opt_next(bsf->priv_data, NULL); |
455 |
|
10 |
const char * shorthand[2] = {NULL}; |
456 |
|
|
|
457 |
✓✗ |
10 |
if (opt) |
458 |
|
10 |
shorthand[0] = opt->name; |
459 |
|
|
|
460 |
|
10 |
ret = av_opt_set_from_string(bsf->priv_data, options, shorthand, "=", ":"); |
461 |
✗✓ |
10 |
if (ret < 0) |
462 |
|
|
goto end; |
463 |
|
|
} |
464 |
|
|
|
465 |
✗✓ |
553 |
if (options_dict) { |
466 |
|
|
ret = av_opt_set_dict2(bsf, options_dict, AV_OPT_SEARCH_CHILDREN); |
467 |
|
|
if (ret < 0) |
468 |
|
|
goto end; |
469 |
|
|
} |
470 |
|
|
|
471 |
|
553 |
ret = av_bsf_list_append(lst, bsf); |
472 |
|
|
|
473 |
|
553 |
end: |
474 |
✗✓ |
553 |
if (ret < 0) |
475 |
|
|
av_bsf_free(&bsf); |
476 |
|
|
|
477 |
|
553 |
return ret; |
478 |
|
|
} |
479 |
|
|
|
480 |
|
|
int av_bsf_list_append2(AVBSFList *lst, const char *bsf_name, AVDictionary ** options) |
481 |
|
|
{ |
482 |
|
|
return bsf_list_append_internal(lst, bsf_name, NULL, options); |
483 |
|
|
} |
484 |
|
|
|
485 |
|
553 |
int av_bsf_list_finalize(AVBSFList **lst, AVBSFContext **bsf) |
486 |
|
|
{ |
487 |
|
553 |
int ret = 0; |
488 |
|
|
BSFListContext *ctx; |
489 |
|
|
|
490 |
✓✗ |
553 |
if ((*lst)->nb_bsfs == 1) { |
491 |
|
553 |
*bsf = (*lst)->bsfs[0]; |
492 |
|
553 |
av_freep(&(*lst)->bsfs); |
493 |
|
553 |
(*lst)->nb_bsfs = 0; |
494 |
|
553 |
goto end; |
495 |
|
|
} |
496 |
|
|
|
497 |
|
|
ret = av_bsf_alloc(&ff_list_bsf, bsf); |
498 |
|
|
if (ret < 0) |
499 |
|
|
return ret; |
500 |
|
|
|
501 |
|
|
ctx = (*bsf)->priv_data; |
502 |
|
|
|
503 |
|
|
ctx->bsfs = (*lst)->bsfs; |
504 |
|
|
ctx->nb_bsfs = (*lst)->nb_bsfs; |
505 |
|
|
|
506 |
|
553 |
end: |
507 |
|
553 |
av_freep(lst); |
508 |
|
553 |
return ret; |
509 |
|
|
} |
510 |
|
|
|
511 |
|
553 |
static int bsf_parse_single(char *str, AVBSFList *bsf_lst) |
512 |
|
|
{ |
513 |
|
|
char *bsf_name, *bsf_options_str; |
514 |
|
|
|
515 |
|
553 |
bsf_name = av_strtok(str, "=", &bsf_options_str); |
516 |
✗✓ |
553 |
if (!bsf_name) |
517 |
|
|
return AVERROR(EINVAL); |
518 |
|
|
|
519 |
|
553 |
return bsf_list_append_internal(bsf_lst, bsf_name, bsf_options_str, NULL); |
520 |
|
|
} |
521 |
|
|
|
522 |
|
12756 |
int av_bsf_list_parse_str(const char *str, AVBSFContext **bsf_lst) |
523 |
|
|
{ |
524 |
|
|
AVBSFList *lst; |
525 |
|
|
char *bsf_str, *buf, *dup, *saveptr; |
526 |
|
|
int ret; |
527 |
|
|
|
528 |
✓✓ |
12756 |
if (!str) |
529 |
|
12203 |
return av_bsf_get_null_filter(bsf_lst); |
530 |
|
|
|
531 |
|
553 |
lst = av_bsf_list_alloc(); |
532 |
✗✓ |
553 |
if (!lst) |
533 |
|
|
return AVERROR(ENOMEM); |
534 |
|
|
|
535 |
✗✓ |
553 |
if (!(dup = buf = av_strdup(str))) { |
536 |
|
|
ret = AVERROR(ENOMEM); |
537 |
|
|
goto end; |
538 |
|
|
} |
539 |
|
|
|
540 |
✓✓ |
1106 |
while (bsf_str = av_strtok(buf, ",", &saveptr)) { |
541 |
|
553 |
ret = bsf_parse_single(bsf_str, lst); |
542 |
✗✓ |
553 |
if (ret < 0) |
543 |
|
|
goto end; |
544 |
|
|
|
545 |
|
553 |
buf = NULL; |
546 |
|
|
} |
547 |
|
|
|
548 |
|
553 |
ret = av_bsf_list_finalize(&lst, bsf_lst); |
549 |
|
553 |
end: |
550 |
✗✓ |
553 |
if (ret < 0) |
551 |
|
|
av_bsf_list_free(&lst); |
552 |
|
553 |
av_free(dup); |
553 |
|
553 |
return ret; |
554 |
|
|
} |
555 |
|
|
|
556 |
|
12203 |
int av_bsf_get_null_filter(AVBSFContext **bsf) |
557 |
|
|
{ |
558 |
|
12203 |
return av_bsf_alloc(&ff_list_bsf, bsf); |
559 |
|
|
} |