#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "error_resilience.h"
+#include "hwaccel.h"
#include "idctdsp.h"
#include "internal.h"
#include "mpegutils.h"
return 0;
}
+static int mpeg4_decode_visual_object(MpegEncContext *s, GetBitContext *gb)
+{
+ int visual_object_type;
+ int is_visual_object_identifier = get_bits1(gb);
+
+ if (is_visual_object_identifier) {
+ skip_bits(gb, 4+3);
+ }
+ visual_object_type = get_bits(gb, 4);
+
+ if (visual_object_type == VOT_VIDEO_ID ||
+ visual_object_type == VOT_STILL_TEXTURE_ID) {
+ int video_signal_type = get_bits1(gb);
+ if (video_signal_type) {
+ int video_range, color_description;
+ skip_bits(gb, 3); // video_format
+ video_range = get_bits1(gb);
+ color_description = get_bits1(gb);
+
+ s->avctx->color_range = video_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
+
+ if (color_description) {
+ s->avctx->color_primaries = get_bits(gb, 8);
+ s->avctx->color_trc = get_bits(gb, 8);
+ s->avctx->colorspace = get_bits(gb, 8);
+ }
+ }
+ }
+
+ return 0;
+}
+
static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
{
MpegEncContext *s = &ctx->m;
e = sscanf(buf, "FFmpeg v%d.%d.%d / libavcodec build: %d", &ver, &ver2, &ver3, &build);
if (e != 4) {
e = sscanf(buf, "Lavc%d.%d.%d", &ver, &ver2, &ver3) + 1;
- if (e > 1)
- build = (ver << 16) + (ver2 << 8) + ver3;
+ if (e > 1) {
+ if (ver > 0xFFU || ver2 > 0xFFU || ver3 > 0xFFU) {
+ av_log(s->avctx, AV_LOG_WARNING,
+ "Unknown Lavc version string encountered, %d.%d.%d; "
+ "clamping sub-version values to 8-bits.\n",
+ ver, ver2, ver3);
+ }
+ build = ((ver & 0xFF) << 16) + ((ver2 & 0xFF) << 8) + (ver3 & 0xFF);
+ }
}
if (e != 4) {
if (strcmp(buf, "ffmpeg") == 0)
mpeg4_decode_gop_header(s, gb);
} else if (startcode == VOS_STARTCODE) {
mpeg4_decode_profile_level(s, gb);
+ } else if (startcode == VISUAL_OBJ_STARTCODE) {
+ mpeg4_decode_visual_object(s, gb);
} else if (startcode == VOP_STARTCODE) {
break;
}
.profiles = NULL_IF_CONFIG_SMALL(ff_mpeg4_video_profiles),
.update_thread_context = ONLY_IF_THREADS_ENABLED(mpeg4_update_thread_context),
.priv_class = &mpeg4_class,
+ .hw_configs = (const AVCodecHWConfigInternal*[]) {
+#if CONFIG_MPEG4_NVDEC_HWACCEL
+ HWACCEL_NVDEC(mpeg4),
+#endif
+#if CONFIG_MPEG4_VAAPI_HWACCEL
+ HWACCEL_VAAPI(mpeg4),
+#endif
+#if CONFIG_MPEG4_VDPAU_HWACCEL
+ HWACCEL_VDPAU(mpeg4),
+#endif
+#if CONFIG_MPEG4_VIDEOTOOLBOX_HWACCEL
+ HWACCEL_VIDEOTOOLBOX(mpeg4),
+#endif
+ NULL
+ },
};