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-rw-r--r--libavcodec/options.c298
1 files changed, 275 insertions, 23 deletions
diff --git a/libavcodec/options.c b/libavcodec/options.c
index a433f25..41471de 100644
--- a/libavcodec/options.c
+++ b/libavcodec/options.c
@@ -2,20 +2,20 @@
* Copyright (c) 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -70,6 +70,13 @@ static const AVClass *codec_child_class_next(const AVClass *prev)
return NULL;
}
+static AVClassCategory get_category(void *ptr)
+{
+ AVCodecContext* avctx = ptr;
+ if(avctx->codec && avctx->codec->decode) return AV_CLASS_CATEGORY_DECODER;
+ else return AV_CLASS_CATEGORY_ENCODER;
+}
+
static const AVClass av_codec_context_class = {
.class_name = "AVCodecContext",
.item_name = context_to_name,
@@ -78,20 +85,34 @@ static const AVClass av_codec_context_class = {
.log_level_offset_offset = offsetof(AVCodecContext, log_level_offset),
.child_next = codec_child_next,
.child_class_next = codec_child_class_next,
+ .category = AV_CLASS_CATEGORY_ENCODER,
+ .get_category = get_category,
};
int avcodec_get_context_defaults3(AVCodecContext *s, const AVCodec *codec)
{
+ int flags=0;
memset(s, 0, sizeof(AVCodecContext));
s->av_class = &av_codec_context_class;
s->codec_type = codec ? codec->type : AVMEDIA_TYPE_UNKNOWN;
- s->codec = codec;
- av_opt_set_defaults(s);
+ if (codec) {
+ s->codec = codec;
+ s->codec_id = codec->id;
+ }
+
+ if(s->codec_type == AVMEDIA_TYPE_AUDIO)
+ flags= AV_OPT_FLAG_AUDIO_PARAM;
+ else if(s->codec_type == AVMEDIA_TYPE_VIDEO)
+ flags= AV_OPT_FLAG_VIDEO_PARAM;
+ else if(s->codec_type == AVMEDIA_TYPE_SUBTITLE)
+ flags= AV_OPT_FLAG_SUBTITLE_PARAM;
+ av_opt_set_defaults2(s, flags, flags);
s->time_base = (AVRational){0,1};
s->framerate = (AVRational){ 0, 1 };
+ s->pkt_timebase = (AVRational){ 0, 1 };
s->get_buffer2 = avcodec_default_get_buffer2;
s->get_format = avcodec_default_get_format;
s->execute = avcodec_default_execute;
@@ -151,6 +172,9 @@ void avcodec_free_context(AVCodecContext **pavctx)
av_freep(&avctx->extradata);
av_freep(&avctx->subtitle_header);
+ av_freep(&avctx->intra_matrix);
+ av_freep(&avctx->inter_matrix);
+ av_freep(&avctx->rc_override);
av_freep(pavctx);
}
@@ -166,15 +190,30 @@ int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
src, dest);
return AVERROR(EINVAL);
}
+
+ av_opt_free(dest);
+ av_freep(&dest->rc_override);
+ av_freep(&dest->intra_matrix);
+ av_freep(&dest->inter_matrix);
+ av_freep(&dest->extradata);
+ av_freep(&dest->subtitle_header);
+
memcpy(dest, src, sizeof(*dest));
+ av_opt_copy(dest, src);
dest->priv_data = orig_priv_data;
dest->codec = orig_codec;
+ if (orig_priv_data && src->codec && src->codec->priv_class &&
+ dest->codec && dest->codec->priv_class)
+ av_opt_copy(orig_priv_data, src->priv_data);
+
+
/* set values specific to opened codecs back to their default state */
dest->slice_offset = NULL;
dest->hwaccel = NULL;
dest->internal = NULL;
+ dest->coded_frame = NULL;
/* reallocate values that should be allocated separately */
dest->extradata = NULL;
@@ -182,16 +221,6 @@ int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
dest->inter_matrix = NULL;
dest->rc_override = NULL;
dest->subtitle_header = NULL;
-#if FF_API_MPV_OPT
- FF_DISABLE_DEPRECATION_WARNINGS
- dest->rc_eq = NULL;
- if (src->rc_eq) {
- dest->rc_eq = av_strdup(src->rc_eq);
- if (!dest->rc_eq)
- return AVERROR(ENOMEM);
- }
- FF_ENABLE_DEPRECATION_WARNINGS
-#endif
#define alloc_and_copy_or_fail(obj, size, pad) \
if (src->obj && size > 0) { \
@@ -204,11 +233,12 @@ int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
}
alloc_and_copy_or_fail(extradata, src->extradata_size,
FF_INPUT_BUFFER_PADDING_SIZE);
+ dest->extradata_size = src->extradata_size;
alloc_and_copy_or_fail(intra_matrix, 64 * sizeof(int16_t), 0);
alloc_and_copy_or_fail(inter_matrix, 64 * sizeof(int16_t), 0);
alloc_and_copy_or_fail(rc_override, src->rc_override_count * sizeof(*src->rc_override), 0);
- alloc_and_copy_or_fail(subtitle_header, src->subtitle_header_size, 0);
- dest->subtitle_header_size = src->subtitle_header_size;
+ alloc_and_copy_or_fail(subtitle_header, src->subtitle_header_size, 1);
+ av_assert0(dest->subtitle_header_size == src->subtitle_header_size);
#undef alloc_and_copy_or_fail
return 0;
@@ -218,11 +248,10 @@ fail:
av_freep(&dest->intra_matrix);
av_freep(&dest->inter_matrix);
av_freep(&dest->extradata);
-#if FF_API_MPV_OPT
- FF_DISABLE_DEPRECATION_WARNINGS
- av_freep(&dest->rc_eq);
- FF_ENABLE_DEPRECATION_WARNINGS
-#endif
+ av_freep(&dest->subtitle_header);
+ dest->subtitle_header_size = 0;
+ dest->extradata_size = 0;
+ av_opt_free(dest);
return AVERROR(ENOMEM);
}
@@ -230,3 +259,226 @@ const AVClass *avcodec_get_class(void)
{
return &av_codec_context_class;
}
+
+#define FOFFSET(x) offsetof(AVFrame,x)
+
+static const AVOption frame_options[]={
+{"best_effort_timestamp", "", FOFFSET(best_effort_timestamp), AV_OPT_TYPE_INT64, {.i64 = AV_NOPTS_VALUE }, INT64_MIN, INT64_MAX, 0},
+{"pkt_pos", "", FOFFSET(pkt_pos), AV_OPT_TYPE_INT64, {.i64 = -1 }, INT64_MIN, INT64_MAX, 0},
+{"pkt_size", "", FOFFSET(pkt_size), AV_OPT_TYPE_INT64, {.i64 = -1 }, INT64_MIN, INT64_MAX, 0},
+{"sample_aspect_ratio", "", FOFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0 }, 0, INT_MAX, 0},
+{"width", "", FOFFSET(width), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"height", "", FOFFSET(height), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"format", "", FOFFSET(format), AV_OPT_TYPE_INT, {.i64 = -1 }, 0, INT_MAX, 0},
+{"channel_layout", "", FOFFSET(channel_layout), AV_OPT_TYPE_INT64, {.i64 = 0 }, 0, INT64_MAX, 0},
+{"sample_rate", "", FOFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{NULL},
+};
+
+static const AVClass av_frame_class = {
+ .class_name = "AVFrame",
+ .item_name = NULL,
+ .option = frame_options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+const AVClass *avcodec_get_frame_class(void)
+{
+ return &av_frame_class;
+}
+
+#define SROFFSET(x) offsetof(AVSubtitleRect,x)
+
+static const AVOption subtitle_rect_options[]={
+{"x", "", SROFFSET(x), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"y", "", SROFFSET(y), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"w", "", SROFFSET(w), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"h", "", SROFFSET(h), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"type", "", SROFFSET(type), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0},
+{"flags", "", SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0, "flags"},
+{"forced", "", SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0},
+{NULL},
+};
+
+static const AVClass av_subtitle_rect_class = {
+ .class_name = "AVSubtitleRect",
+ .item_name = NULL,
+ .option = subtitle_rect_options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+const AVClass *avcodec_get_subtitle_rect_class(void)
+{
+ return &av_subtitle_rect_class;
+}
+
+#ifdef TEST
+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);
+ ctx->coded_frame = av_frame_alloc();
+ return 0;
+}
+
+static int dummy_close(AVCodecContext *ctx)
+{
+ av_freep(&ctx->extradata);
+ ctx->extradata_size = 0;
+ av_frame_free(&ctx->coded_frame);
+ 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 */
+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 */
+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 */
+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 */
+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;
+ 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) {
+ printf("opened:\n");
+ avcodec_open2(ctx1, ctx1->codec, NULL);
+ 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_close(ctx1);
+ }
+ 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;
+}
+#endif
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