static void do_connect(void)
{
/* this command needs a vchiq connection */
MMAL_STATUS_T st;
if ((st = mmal_vc_init()) != MMAL_SUCCESS)
{
fprintf(stderr, "failed to initialize mmal vc library (%i:%s)\n",
st, mmal_status_to_string(st));
exit(1);
}
}
int mmal_vc_drm_get_time(unsigned int * time)
{
MMAL_STATUS_T status;
mmal_worker_msg_header req;
mmal_worker_drm_get_time_reply reply;
size_t len = sizeof(reply);
status = mmal_vc_init();
if (status != MMAL_SUCCESS) return status;
status = mmal_vc_sendwait_message(mmal_vc_get_client(),
&req, sizeof(req),
MMAL_WORKER_DRM_GET_TIME,
&reply, &len, MMAL_FALSE);
*time = reply.time;
mmal_vc_deinit();
return status;
}
int mmal_vc_drm_get_lhs32(unsigned char * into)
{
MMAL_STATUS_T status;
mmal_worker_msg_header req;
mmal_worker_drm_get_lhs32_reply reply;
size_t len = sizeof(reply);
status = mmal_vc_init();
if (status != MMAL_SUCCESS) return status;
status = mmal_vc_sendwait_message(mmal_vc_get_client(),
&req, sizeof(req),
MMAL_WORKER_DRM_GET_LHS32,
&reply, &len, MMAL_FALSE);
memcpy(into, reply.secret, 32);
mmal_vc_deinit();
return status;
}
static av_cold int ffmmal_init_decoder(AVCodecContext *avctx)
{
MMALDecodeContext *ctx = avctx->priv_data;
MMAL_STATUS_T status;
MMAL_ES_FORMAT_T *format_in;
MMAL_COMPONENT_T *decoder;
char tmp[32];
int ret = 0;
bcm_host_init();
if (mmal_vc_init()) {
av_log(avctx, AV_LOG_ERROR, "Cannot initialize MMAL VC driver!\n");
return AVERROR(ENOSYS);
}
if ((ret = ff_get_format(avctx, avctx->codec->pix_fmts)) < 0)
return ret;
avctx->pix_fmt = ret;
if ((status = mmal_component_create(MMAL_COMPONENT_DEFAULT_VIDEO_DECODER, &ctx->decoder)))
goto fail;
decoder = ctx->decoder;
format_in = decoder->input[0]->format;
format_in->type = MMAL_ES_TYPE_VIDEO;
switch (avctx->codec_id) {
case AV_CODEC_ID_MPEG2VIDEO:
format_in->encoding = MMAL_ENCODING_MP2V;
break;
case AV_CODEC_ID_MPEG4:
format_in->encoding = MMAL_ENCODING_MP4V;
break;
case AV_CODEC_ID_VC1:
format_in->encoding = MMAL_ENCODING_WVC1;
break;
case AV_CODEC_ID_H264:
default:
format_in->encoding = MMAL_ENCODING_H264;
break;
}
format_in->es->video.width = FFALIGN(avctx->width, 32);
format_in->es->video.height = FFALIGN(avctx->height, 16);
format_in->es->video.crop.width = avctx->width;
format_in->es->video.crop.height = avctx->height;
format_in->es->video.frame_rate.num = 24000;
format_in->es->video.frame_rate.den = 1001;
format_in->es->video.par.num = avctx->sample_aspect_ratio.num;
format_in->es->video.par.den = avctx->sample_aspect_ratio.den;
format_in->flags = MMAL_ES_FORMAT_FLAG_FRAMED;
av_get_codec_tag_string(tmp, sizeof(tmp), format_in->encoding);
av_log(avctx, AV_LOG_DEBUG, "Using MMAL %s encoding.\n", tmp);
#if HAVE_MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
if (mmal_port_parameter_set_uint32(decoder->input[0], MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS,
-1 - ctx->extra_decoder_buffers)) {
av_log(avctx, AV_LOG_WARNING, "Could not set input buffering limit.\n");
}
#endif
if ((status = mmal_port_format_commit(decoder->input[0])))
goto fail;
decoder->input[0]->buffer_num =
FFMAX(decoder->input[0]->buffer_num_min, 20);
decoder->input[0]->buffer_size =
FFMAX(decoder->input[0]->buffer_size_min, 512 * 1024);
ctx->pool_in = mmal_pool_create(decoder->input[0]->buffer_num, 0);
if (!ctx->pool_in) {
ret = AVERROR(ENOMEM);
goto fail;
}
if ((ret = ffmal_update_format(avctx)) < 0)
goto fail;
ctx->queue_decoded_frames = mmal_queue_create();
if (!ctx->queue_decoded_frames)
goto fail;
decoder->input[0]->userdata = (void*)avctx;
decoder->output[0]->userdata = (void*)avctx;
decoder->control->userdata = (void*)avctx;
if ((status = mmal_port_enable(decoder->control, control_port_cb)))
goto fail;
if ((status = mmal_port_enable(decoder->input[0], input_callback)))
goto fail;
if ((status = mmal_port_enable(decoder->output[0], output_callback)))
goto fail;
if ((status = mmal_component_enable(decoder)))
goto fail;
return 0;
fail:
ffmmal_close_decoder(avctx);
return ret < 0 ? ret : AVERROR_UNKNOWN;
}
static av_cold int ffmmal_init_decoder(AVCodecContext *avctx)
{
MMALDecodeContext *ctx = avctx->priv_data;
MMAL_STATUS_T status;
MMAL_ES_FORMAT_T *format_in;
MMAL_COMPONENT_T *decoder;
int ret = 0;
bcm_host_init();
if (mmal_vc_init()) {
av_log(avctx, AV_LOG_ERROR, "Cannot initialize MMAL VC driver!\n");
return AVERROR(ENOSYS);
}
if ((ret = ff_get_format(avctx, avctx->codec->pix_fmts)) < 0)
return ret;
avctx->pix_fmt = ret;
if ((status = mmal_component_create(MMAL_COMPONENT_DEFAULT_VIDEO_DECODER, &ctx->decoder)))
goto fail;
decoder = ctx->decoder;
format_in = decoder->input[0]->format;
format_in->type = MMAL_ES_TYPE_VIDEO;
format_in->encoding = MMAL_ENCODING_H264;
format_in->es->video.width = FFALIGN(avctx->width, 32);
format_in->es->video.height = FFALIGN(avctx->height, 16);
format_in->es->video.crop.width = avctx->width;
format_in->es->video.crop.height = avctx->height;
format_in->es->video.frame_rate.num = 24000;
format_in->es->video.frame_rate.den = 1001;
format_in->es->video.par.num = avctx->sample_aspect_ratio.num;
format_in->es->video.par.den = avctx->sample_aspect_ratio.den;
format_in->flags = MMAL_ES_FORMAT_FLAG_FRAMED;
if (avctx->codec->id == AV_CODEC_ID_H264 && avctx->extradata && avctx->extradata[0] == 1) {
uint8_t *dummy_p;
int dummy_int;
ctx->bsfc = av_bitstream_filter_init("h264_mp4toannexb");
if (!ctx->bsfc) {
av_log(avctx, AV_LOG_ERROR, "Cannot open the h264_mp4toannexb BSF!\n");
ret = AVERROR(ENOSYS);
goto fail;
}
av_bitstream_filter_filter(ctx->bsfc, avctx, NULL, &dummy_p, &dummy_int, NULL, 0, 0);
}
if (avctx->extradata_size) {
if ((status = mmal_format_extradata_alloc(format_in, avctx->extradata_size)))
goto fail;
format_in->extradata_size = avctx->extradata_size;
memcpy(format_in->extradata, avctx->extradata, format_in->extradata_size);
}
if ((status = mmal_port_format_commit(decoder->input[0])))
goto fail;
decoder->input[0]->buffer_num =
FFMAX(decoder->input[0]->buffer_num_min, 20);
decoder->input[0]->buffer_size =
FFMAX(decoder->input[0]->buffer_size_min, 512 * 1024);
ctx->pool_in = mmal_pool_create(decoder->input[0]->buffer_num, 0);
if (!ctx->pool_in) {
ret = AVERROR(ENOMEM);
goto fail;
}
if ((ret = ffmal_update_format(avctx)) < 0)
goto fail;
ctx->queue_decoded_frames = mmal_queue_create();
if (!ctx->queue_decoded_frames)
goto fail;
decoder->input[0]->userdata = (void*)avctx;
decoder->output[0]->userdata = (void*)avctx;
decoder->control->userdata = (void*)avctx;
if ((status = mmal_port_enable(decoder->control, control_port_cb)))
goto fail;
if ((status = mmal_port_enable(decoder->input[0], input_callback)))
goto fail;
if ((status = mmal_port_enable(decoder->output[0], output_callback)))
goto fail;
if ((status = mmal_component_enable(decoder)))
goto fail;
return 0;
fail:
ffmmal_close_decoder(avctx);
return ret < 0 ? ret : AVERROR_UNKNOWN;
}
