| /* |
| * Copyright (c) 2001 Fabrice Bellard |
| * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
| * |
| * 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 |
| */ |
| |
| #include "libavcodec/options.c" |
| |
| static int dummy_init(AVCodecContext *ctx) |
| { |
| //TODO: this code should set every possible pointer that could be set by codec and is not an option; |
| ctx->extradata_size = 8; |
| ctx->extradata = av_malloc(ctx->extradata_size); |
| return 0; |
| } |
| |
| static int dummy_close(AVCodecContext *ctx) |
| { |
| av_freep(&ctx->extradata); |
| ctx->extradata_size = 0; |
| return 0; |
| } |
| |
| static int dummy_encode(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, int *got_packet) |
| { |
| return AVERROR(ENOSYS); |
| } |
| |
| typedef struct Dummy12Context { |
| AVClass *av_class; |
| int num; |
| char* str; |
| } Dummy12Context; |
| |
| typedef struct Dummy3Context { |
| void *fake_av_class; |
| int num; |
| char* str; |
| } Dummy3Context; |
| |
| #define OFFSET(x) offsetof(Dummy12Context, x) |
| #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM |
| static const AVOption dummy_options[] = { |
| { "str", "set str", OFFSET(str), AV_OPT_TYPE_STRING, { .str = "i'm src default value" }, 0, 0, VE}, |
| { "num", "set num", OFFSET(num), AV_OPT_TYPE_INT, { .i64 = 1500100900 }, 0, INT_MAX, VE}, |
| { NULL }, |
| }; |
| |
| static const AVClass dummy_v1_class = { |
| .class_name = "dummy_v1_class", |
| .item_name = av_default_item_name, |
| .option = dummy_options, |
| .version = LIBAVUTIL_VERSION_INT, |
| }; |
| |
| static const AVClass dummy_v2_class = { |
| .class_name = "dummy_v2_class", |
| .item_name = av_default_item_name, |
| .option = dummy_options, |
| .version = LIBAVUTIL_VERSION_INT, |
| }; |
| |
| /* codec with options */ |
| static AVCodec dummy_v1_encoder = { |
| .name = "dummy_v1_codec", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_NONE - 1, |
| .encode2 = dummy_encode, |
| .init = dummy_init, |
| .close = dummy_close, |
| .priv_class = &dummy_v1_class, |
| .priv_data_size = sizeof(Dummy12Context), |
| }; |
| |
| /* codec with options, different class */ |
| static AVCodec dummy_v2_encoder = { |
| .name = "dummy_v2_codec", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_NONE - 2, |
| .encode2 = dummy_encode, |
| .init = dummy_init, |
| .close = dummy_close, |
| .priv_class = &dummy_v2_class, |
| .priv_data_size = sizeof(Dummy12Context), |
| }; |
| |
| /* codec with priv data, but no class */ |
| static AVCodec dummy_v3_encoder = { |
| .name = "dummy_v3_codec", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_NONE - 3, |
| .encode2 = dummy_encode, |
| .init = dummy_init, |
| .close = dummy_close, |
| .priv_data_size = sizeof(Dummy3Context), |
| }; |
| |
| /* codec without priv data */ |
| static AVCodec dummy_v4_encoder = { |
| .name = "dummy_v4_codec", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_NONE - 4, |
| .encode2 = dummy_encode, |
| .init = dummy_init, |
| .close = dummy_close, |
| }; |
| |
| static void test_copy_print_codec(const AVCodecContext *ctx) |
| { |
| printf("%-14s: %dx%d prv: %s", |
| ctx->codec ? ctx->codec->name : "NULL", |
| ctx->width, ctx->height, |
| ctx->priv_data ? "set" : "null"); |
| if (ctx->codec && ctx->codec->priv_class && ctx->codec->priv_data_size) { |
| int64_t i64; |
| char *str = NULL; |
| av_opt_get_int(ctx->priv_data, "num", 0, &i64); |
| av_opt_get(ctx->priv_data, "str", 0, (uint8_t**)&str); |
| printf(" opts: %"PRId64" %s", i64, str); |
| av_free(str); |
| } |
| printf("\n"); |
| } |
| |
| static void test_copy(const AVCodec *c1, const AVCodec *c2) |
| { |
| AVCodecContext *ctx1, *ctx2; |
| printf("%s -> %s\nclosed:\n", c1 ? c1->name : "NULL", c2 ? c2->name : "NULL"); |
| ctx1 = avcodec_alloc_context3(c1); |
| ctx2 = avcodec_alloc_context3(c2); |
| ctx1->width = ctx1->height = 128; |
| ctx1->time_base = (AVRational){12,34}; |
| if (ctx2->codec && ctx2->codec->priv_class && ctx2->codec->priv_data_size) { |
| av_opt_set(ctx2->priv_data, "num", "667", 0); |
| av_opt_set(ctx2->priv_data, "str", "i'm dest value before copy", 0); |
| } |
| avcodec_copy_context(ctx2, ctx1); |
| test_copy_print_codec(ctx1); |
| test_copy_print_codec(ctx2); |
| if (ctx1->codec) { |
| int ret; |
| printf("opened:\n"); |
| ret = avcodec_open2(ctx1, ctx1->codec, NULL); |
| if (ret < 0) { |
| fprintf(stderr, "avcodec_open2 failed\n"); |
| exit(1); |
| } |
| if (ctx2->codec && ctx2->codec->priv_class && ctx2->codec->priv_data_size) { |
| av_opt_set(ctx2->priv_data, "num", "667", 0); |
| av_opt_set(ctx2->priv_data, "str", "i'm dest value before copy", 0); |
| } |
| avcodec_copy_context(ctx2, ctx1); |
| test_copy_print_codec(ctx1); |
| test_copy_print_codec(ctx2); |
| } |
| avcodec_free_context(&ctx1); |
| avcodec_free_context(&ctx2); |
| } |
| |
| int main(void) |
| { |
| AVCodec *dummy_codec[] = { |
| &dummy_v1_encoder, |
| &dummy_v2_encoder, |
| &dummy_v3_encoder, |
| &dummy_v4_encoder, |
| NULL, |
| }; |
| int i, j; |
| |
| for (i = 0; dummy_codec[i]; i++) |
| avcodec_register(dummy_codec[i]); |
| |
| printf("testing avcodec_copy_context()\n"); |
| for (i = 0; i < FF_ARRAY_ELEMS(dummy_codec); i++) |
| for (j = 0; j < FF_ARRAY_ELEMS(dummy_codec); j++) |
| test_copy(dummy_codec[i], dummy_codec[j]); |
| return 0; |
| } |