diff options
Diffstat (limited to 'libavfilter/dnn/dnn_backend_tf.c')
| -rw-r--r-- | libavfilter/dnn/dnn_backend_tf.c | 42 |
1 files changed, 8 insertions, 34 deletions
diff --git a/libavfilter/dnn/dnn_backend_tf.c b/libavfilter/dnn/dnn_backend_tf.c index fb799d2b70..076dd3d6a9 100644 --- a/libavfilter/dnn/dnn_backend_tf.c +++ b/libavfilter/dnn/dnn_backend_tf.c @@ -28,6 +28,7 @@ #include "dnn_backend_native_layer_conv2d.h" #include "dnn_backend_native_layer_depth2space.h" #include "libavformat/avio.h" +#include "libavformat/internal.h" #include "libavutil/avassert.h" #include "../internal.h" #include "dnn_backend_native_layer_pad.h" @@ -206,53 +207,26 @@ static DNNReturnType load_tf_model(TFModel *tf_model, const char *model_filename // prepare the sess config data if (tf_model->ctx.options.sess_config != NULL) { + const char *config; /* tf_model->ctx.options.sess_config is hex to present the serialized proto required by TF_SetConfig below, so we need to first generate the serialized - proto in a python script, the following is a script example to generate - serialized proto which specifies one GPU, we can change the script to add - more options. - - import tensorflow as tf - gpu_options = tf.GPUOptions(visible_device_list='0') - config = tf.ConfigProto(gpu_options=gpu_options) - s = config.SerializeToString() - b = ''.join("%02x" % int(ord(b)) for b in s[::-1]) - print('0x%s' % b) - - the script output looks like: 0xab...cd, and then pass 0xab...cd to sess_config. + proto in a python script, tools/python/tf_sess_config.py is a script example + to generate the configs of sess_config. */ - char tmp[3]; - tmp[2] = '\0'; - if (strncmp(tf_model->ctx.options.sess_config, "0x", 2) != 0) { av_log(ctx, AV_LOG_ERROR, "sess_config should start with '0x'\n"); return DNN_ERROR; } + config = tf_model->ctx.options.sess_config + 2; + sess_config_length = ff_hex_to_data(NULL, config); - sess_config_length = strlen(tf_model->ctx.options.sess_config); - if (sess_config_length % 2 != 0) { - av_log(ctx, AV_LOG_ERROR, "the length of sess_config is not even (%s), " - "please re-generate the config.\n", - tf_model->ctx.options.sess_config); - return DNN_ERROR; - } - - sess_config_length -= 2; //ignore the first '0x' - sess_config_length /= 2; //get the data length in byte - - sess_config = av_malloc(sess_config_length); + sess_config = av_mallocz(sess_config_length + AV_INPUT_BUFFER_PADDING_SIZE); if (!sess_config) { av_log(ctx, AV_LOG_ERROR, "failed to allocate memory\n"); return DNN_ERROR; } - - for (int i = 0; i < sess_config_length; i++) { - int index = 2 + (sess_config_length - 1 - i) * 2; - tmp[0] = tf_model->ctx.options.sess_config[index]; - tmp[1] = tf_model->ctx.options.sess_config[index + 1]; - sess_config[i] = strtol(tmp, NULL, 16); - } + ff_hex_to_data(sess_config, config); } graph_def = read_graph(model_filename); |