I am trying to implement the OpenMax IL Video Decoder on ffmpeg. But I meet
some problems. When I use the codec with ffmpeg on Chrome by force, it raised a
error of bug
ffmpeg_video_decoder.cc(491)] avcodec_open2 error: Internal bug, should not
have happened
I 'm not familiar with the version of ffmpeg in the last serveral years. My
codec can run success when using
./ffmpeg -c:v h264_omxcodec -i test1.mp4 output_video.mp4
and I haven't find out how to enable logging of ffmpeg on Chrome(I don't know
why av_log_set_callback() is useless when I used it),
so Is there anyone can give me some advices?
Thx a lot.
The FFCodec is used as following:
#define OFFSET(x) offsetof(OMXCodecDecoderContext, x)
#define VDE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM |
AV_OPT_FLAG_ENCODING_PARAM
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
static const AVCodecHWConfigInternal *const omx_hw_configs[] = {
&(const AVCodecHWConfigInternal) {
.public = {
.pix_fmt =
AV_PIX_FMT_NV12,
.methods =
AV_CODEC_HW_CONFIG_METHOD_AD_HOC |
AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX,
.device_type = AV_HWDEVICE_TYPE_OMX,
},
.hwaccel = NULL,
},
NULL
};
static const AVOption ff_omxcodec_vdec_options[] = {
{ "delay_flush", "Delay flush until hw output buffers are
returned to the decoder",
OFFSET(delay_flush), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, VD },
{ NULL }
};
#define DECLARE_OMX_VCLASS(short_name)
\
static const AVClass ff_##short_name##_omxcodec_dec_class = { \
.class_name = #short_name "_libomxh264",
\
.item_name = av_default_item_name,
\
.option = ff_omxcodec_vdec_options,
\
.version = LIBAVUTIL_VERSION_INT,
\
};
#define DECLARE_OMX_VDEC(short_name, full_name, codec_id, bsf)
\
DECLARE_OMX_VCLASS(short_name)
\
const FFCodec ff_ ## short_name ## _omx_decoder = {
\
.p.name = #short_name
"_omxcodec",
\
CODEC_LONG_NAME(full_name " OpenMAX IL decoder"),
\
.p.type =
AVMEDIA_TYPE_VIDEO,
\
.p.id = codec_id,
\
.p.priv_class =
&ff_##short_name##_omxcodec_dec_class,
\
.priv_data_size = sizeof(OMXCodecDecoderContext),
\
.init =
omx_decode_init,
\
FF_CODEC_DECODE_CB(omx_decode_frame),
\
.close = omx_decode_end,
\
.flush =
omx_decode_flush,
\
.p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AVOID_PROBING
,
\
.caps_internal = FF_CODEC_CAP_NOT_INIT_THREADSAFE |
\
FF_CODEC_CAP_SETS_PKT_DTS,
\
.bsfs = bsf,
\
.p.wrapper_name = "omxcodec",
\
};
DECLARE_OMX_VDEC(h264, "H.264", AV_CODEC_ID_H264, "h264_mp4toannexb")
DECLARE_OMX_VDEC(hevc, "H.265", AV_CODEC_ID_HEVC, "hevc_mp4toannexb")
DECLARE_OMX_VDEC(mpeg4, "MPEG-4", AV_CODEC_ID_MPEG4, NULL)
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